Abstract: A bleeder fitting structure includes a rigid first fitting member for rotating the bleeder and an elastic second fitting member connectable with the bleeder to form a flow passage. A deformation space with a certain size is defined between the first and second fitting members, whereby when the second fitting member is connected with the connection ends of different bleeders with different sizes, the second fitting member is deformed to different extents. Therefore, the second fitting member can be tightly fitted with the connection ends of different bleeders with a larger range of size to ensure that the fluid can flow through the flow passage without leakage.

Abstract: A bleeder fitting structure includes a rigid first fitting member for rotating the bleeder and an elastic second fitting member connectable with the bleeder to form a flow passage. A deformation space with a certain size is defined between the first and second fitting members, whereby when the second fitting member is connected with the connection ends of different bleeders with different sizes, the second fitting member is deformed to different extents. Therefore, the second fitting member can be tightly fitted with the connection ends of different bleeders with a larger range of size to ensure that the fluid can flow through the flow passage without leakage.

Abstract: A Venturi tube assembly includes: a Venturi tube having a body section with an inlet end, an outlet end and an internal flow passage between the inlet end and the outlet end, a pneumatic sucking passage outward extending from a low static pressure section of the internal flow passage to an outer circumference of the body section; and a blocking member having an exhaustion space for communicating the outlet end with the atmosphere, a blocking body movable between an unblocking position and a blocking position and a micro-section movable between a full open position and a micro-position. When positioned in the full open position, the exhaustion space fully communicates the outlet end with the atmosphere, whereby full amount of airflow is exhausted from the outlet end to the atmosphere. When positioned in the micro-position, only a micro-amount of airflow is exhausted from the outlet end to the atmosphere.

Abstract: A manual/pneumatic pump structure includes: a barrel member having a barrel body defining a fuel collection space; a cover body disposed on the barrel body for sealing the fuel collection space; a pneumatic gas-sucking member having a main body disposed on the cover body and a Venturi tube section positioned in the main body, an inlet passage being formed in the main body in communication with an inlet of the Venturi tube section, an outlet passage being formed in the main body with a first end in communication with an outlet of the Venturi tube section, a second end of the outlet passage being permissible to communicate with the atmosphere; and an isolation section for isolating internal passage of the pneumatic gas-sucking member from the atmosphere. The isolation section has a movement space within which a stopper body is movable between a blocking position and an unblocking position.

Abstract: A monodirectional intake pressure stabilization structure of pneumatic tool includes a tool main body and a pressure stabilization unit. The pressure stabilization unit is disposed in a first directional intake passage formed in the tool main body for controlling the pressure of the air guided by the first directional intake passage into an air chamber of the tool main body. Accordingly, excessively great intake pressure can be avoided so as to avoid over-torque output of the pneumatic tool. In this case, the pneumatic tool can stably output power within a safety range in accordance with the requirements of actual use. The pressure stabilization unit can be a pressure stabilizer or a pressure relief valve.

Abstract: An airflow passage structure of manual pump of fluid-pumping apparatus includes a first control valve and a second control valve. The first and second control valves are movable between different positions to change flowing path of air so as to increase or decrease the air pressure in the chamber of a container of the fluid-pumping apparatus. In a relief operation mode, the air in the chamber is guided to go into a first compartment of the interior space of the manual pump and then go into a second compartment thereof to be exhausted into the atmosphere. On the other hand, in a pressurization operation mode, the communication between the chamber and the first compartment is interrupted and the air goes into the second compartment and then is pressurized and filled into the chamber to increase the pressure in the chamber.

Abstract: A Venturi tube assembly includes: a Venturi tube having a body section with an inlet end, an outlet end and an internal flow passage between the inlet end and the outlet end, a pneumatic sucking passage outward extending from a low static pressure section of the internal flow passage to an outer circumference of the body section; and a blocking member having an exhaustion space for communicating the outlet end with the atmosphere, a blocking body movable between an unblocking position and a blocking position and a micro-section movable between a full open position and a micro-position. When positioned in the full open position, the exhaustion space fully communicates the outlet end with the atmosphere, whereby full amount of airflow is exhausted from the outlet end to the atmosphere. When positioned in the micro-position, only a micro-amount of airflow is exhausted from the outlet end to the atmosphere.

Abstract: A manual/pneumatic pump structure includes: a barrel member having a barrel body defining a fuel collection space; a cover body disposed on the barrel body for sealing the fuel collection space; a pneumatic gas-sucking member having a main body disposed on the cover body and a Venturi tube section positioned in the main body, an inlet passage being formed in the main body in communication with an inlet of the Venturi tube section, an outlet passage being formed in the main body with a first end in communication with an outlet of the Venturi tube section, a second end of the outlet passage being permissible to communicate with the atmosphere; and an isolation section for isolating internal passage of the pneumatic gas-sucking member from the atmosphere. The isolation section has a movement space within which a stopper body is movable between a blocking position and an unblocking position.

Abstract: A stabilizing mechanism for output torque of a transmission member, including: a transmission member having a force-input section and a force-output section which are separated from each other; an engaging member positioned between the force-input section and the force-output section, the engaging member including a first engaging section and a second engaging section respectively disposed on the force-input section and the force-output section in predetermined positions, the first and second engaging sections being engaged with each other by a predetermined engagement depth for transmitting force from the force-input section to the force-output section; and a resilient member for providing resilient force to keep the first and second engaging sections engaged with each other. The resilient member is compressible under force. The resilient member has a compressible distance shorter than the engagement depth of the first and second engaging sections.

Abstract: A monodirectional intake pressure stabilization structure of pneumatic tool includes a tool main body and a pressure stabilization unit. The pressure stabilization unit is disposed in a first directional intake passage formed in the tool main body for controlling the pressure of the air guided by the first directional intake passage into an air chamber of the tool main body. Accordingly, excessively great intake pressure can be avoided so as to avoid over-torque output of the pneumatic tool. In this case, the pneumatic tool can stably output power within a safety range in accordance with the requirements of actual use. The pressure stabilization unit can be a pressure stabilizer or a pressure relief valve.

Abstract: A stabilizing mechanism for output torque of a transmission member, including: a transmission member having a force-input section and a force-output section which are separated from each other; an engaging member positioned between the force-input section and the force-output section, the engaging member including a first engaging section and a second engaging section respectively disposed on the force-input section and the force-output section in predetermined positions, the first and second engaging sections being engaged with each other by a predetermined engagement depth for transmitting force from the force-input section to the force-output section; and a resilient member for providing resilient force to keep the first and second engaging sections engaged with each other. The resilient member is compressible under force. The resilient member has a compressible distance shorter than the engagement depth of the first and second engaging sections.

Abstract: A transmission member with torque-restricting protective structure, including: a first transmission section; a second transmission section kept spaced from the first transmission section by a predetermined distance; a first chucking section connected with the first transmission section and having a first chucking end facing the second transmission section; a second chucking section slidably connected with the second transmission section and linearly reciprocally movable between a chucking position and a releasing position, the second chucking section having a second chucking end, when the second chucking section is positioned in the chucking position, the second chucking end being engaged with the first chucking end, when the second chucking section is positioned in the releasing position, the second chucking end being disengaged from the first chucking end; a resilient member for resiliently locating the second chucking section in the chucking position; and an anti-rotating section disposed between the secon

Abstract: A transmission member with torque-restricting protective structure, including: a first transmission section; a second transmission section kept spaced from the first transmission section by a predetermined distance; a first chucking section connected with the first transmission section and having a first chucking end facing the second transmission section; a second chucking section slidably connected with the second transmission section and linearly reciprocally movable between a chucking position and a releasing position, the second chucking section having a second chucking end, when the second chucking section is positioned in the chucking position, the second chucking end being engaged with the first chucking end, when the second chucking section is positioned in the releasing position, the second chucking end being disengaged from the first chucking end; a resilient member for resiliently locating the second chucking section in the chucking position; and an anti-rotating section disposed between the secon

Abstract: Continuously shooting pneumatic grease gun structure including an air chamber housing defining an elongated air chamber. A push hole extends from the air chamber through one end of the housing to an outer side. A piston is reciprocally axially movably disposed in the air chamber between a start position and an end position. A grease push rod is coaxially fitted in the push hole and synchronously movable along with the piston. A restoring spring is compressed between the end of the housing and the piston to resiliently keep the piston in the start position. A controlling valve is movably disposed on the housing between an open position and a close position. A shift air passage is formed in the body section controlling the air in the air chamber and moving the controlling valve from an open position to a closed position.

Abstract: A rotational speed adjustment mechanism of a pneumatic tool, including an intake member, a speed adjustment valve and a case enclosing the intake member and the speed adjustment valve. The intake member is formed with an intake and an exhaust port which are not communicated with each other. A lateral outlet and a lateral inlet are formed on the sidewall of the body section for communicating the intake with the exhaust port. The speed adjustment valve has a collar coaxially fitted on the body section and rotatable between a full speed position and a slowest speed position. A full speed through hole and at least one slow speed through hole are formed on the sidewall of the collar. When the collar is positioned in the full speed position, the full speed through hole is coaxially communicated with the lateral outlet, whereby the full diameter range of the lateral outlet provides a passage for the airflow.

Abstract: A rotational speed adjustment mechanism of a pneumatic tool, including an intake member, a speed adjustment valve and a case enclosing the intake member and the speed adjustment valve. The intake member is formed with an intake and an exhaust port which are not communicated with each other. A lateral outlet and a lateral inlet are formed on the sidewall of the body section for communicating the intake with the exhaust port. The speed adjustment valve has a collar coaxially fitted on the body section and rotatable between a full speed position and a slowest speed position. A full speed through hole and at least one slow speed through hole are formed on the sidewall of the collar. When the collar is positioned in the full speed position, the full speed through hole is coaxially communicated with the lateral outlet, whereby the full diameter range of the lateral outlet provides a passage for the airflow.

Abstract: Continuously shooting pneumatic grease gun structure including an air chamber housing defining therein an elongated air chamber. A push hole extends from the air chamber through one end of the housing to outer side thereof. A piston is reciprocally axially movably disposed in the air chamber between a start position and an end position. When in the end position, the piston permits the air in the air chamber to pass through the piston and escape from an outlet passage of the housing. A grease push rod is coaxially fitted in the push hole and synchronously movable along with the piston. A restoring spring is compressed between the end of the housing and the piston to resiliently keep the piston in the start position. A controlling valve is movably disposed on the housing between an open position and a close position.

Abstract: Continuously shooting pneumatic grease gun structure including an air chamber housing defining therein an elongated air chamber. A push hole extends from the air chamber through one end of the housing to outer side thereof. A piston is reciprocally axially movably disposed in the air chamber between a start position and an end position. When in the end position, the piston permits the air in the air chamber to pass through the piston and escape from an outlet passage of the housing. A grease push rod is coaxially fitted in the push hole and synchronously movable along with the piston. A restoring spring is compressed between the end of the housing and the piston to resiliently keep the piston in the start position. A controlling valve is movably disposed on the housing between an open position and a close position.

Abstract: A liquid sucking and dispensing device includes a body having a passage and an air inlet and an air outlet are respectively located one two ends of the body. A first valve is engaged with the passage at a mediate section of the passage and a second valve is engaged with the passage at a second end of the body. An opening is defined radially through the body and communicates with the passage and an interior of a container. When the second valve closes the passage, pressurized air enters the container to push liquid in the container out from the container.

Abstract: A pneumatic tool of the front exhaust type is composed of a main body, a rotary end member, a connection member, three leakproof rings, a noise reducing plate, and a flow adjusting set. The main body has a tubular extension portion. The rotary end member has a body provided with a first hole and a second hole. The first hole has a hole diameter greater than the outer diameter of the tubular extension portion, and a length equal to the length of the tubular extension portion. The second hole is in communication with the first hole and is greater in hole diameter than the first hole. The connection member is received in the tubular extension portion via the second hole. The connection member has a threaded portion provided with at least one leakproof ring so as to enable the connection member to be fastened pivotally with the rotary end member when the connection member is fastened with the tubular extension portion.