Abstract: A ratchet clamp, comprises a first clamp arm, a second clamp arm and a ratchet mechanism provided between the first clamp arm and the second clamp arm. An elastic member is arranged between the ratchet mechanism and the second clamp arm. The ratchet mechanism includes a toothed bar, a pivoting member. The pivoting member includes a toothed piece, a housing and a lever. The self lock state of the ratchet clamp of the invention is very safe and stable, the maximum clamping force at the jaw opening portion can reach about 50 Kg, and 85% of the maximum clamping force can be maintained after the user releases the clamp arms.

Abstract: The present invention provides a distance measuring device, comprising a casing, a third housing, a tapeline structure and a laser ranging device, in which the casing is comprised of a first housing and a second housing; the third housing is arranged between the first housing and the second housing, and rounding together with the second housing to form a tapeline cavity; the tapeline structure is arranged inside the tapeline cavity; and the laser ranging device is arranged between the first housing and the third housing.

Abstract: An interface adapter may include a printed circuit board that includes an edge connector dimensioned to be inserted into an expansion socket of a computing device. The interface adapter may also include a plurality of modular computing components removably mounted to a top surface of the printed circuit board, where each modular computing component includes a connector dimensioned to be inserted into a socket of the printed circuit board and the connector of each modular computing component includes a pinout that is more compact than a pinout of the edge connector of the printed circuit board. In addition, the interface adapter may include one or more modular heatsinks coupled to a top surface of each modular computing component to facilitate heat dissipation from the top surface of the modular computing component. Various other apparatuses, systems, and methods are also disclosed.

Abstract: The present invention discloses a force relieving mechanism and a ratchet clamp having a force relieving mechanism. The force relieving mechanism includes a first ratchet member, a second ratchet member, a locking member, an actuating member and a restoring member. A first clamp arm of the ratchet clamp is fixedly arranged with a first ratchet member having a first set of ratchets, and a second ratchet member having a second set of ratchets is coupled to the second clamp arm. The second ratchet member is provided with a first hole, the locking member passing through the first hole and being rotatable and translationally movable in the first hole. The actuating member applied a first actuation and a second actuation in turn to the locking member so as to cause the second set of ratchets to be detached from the first set of ratchets.

Abstract: An outdoor unit for a heat recovery VRF air conditioning system and a heat recovery VRF air conditioning system are provided. The outdoor unit comprises: a compressor, having an exhaust port and a gas return port; a reversing assembly, having a first valve port, a second valve port, a third valve port and a fourth valve port; an outdoor heat exchanger, having a first end connected to the first valve port, and a second end connected to the second connector; a plurality of one-way valves, wherein each one-way valve has a circulation end and a stop end, and each one-way valve is opened only in one direction from the circulation end to the stop end; a throttling element; and a gas-liquid separator.

Abstract: An expansion card latching mechanism may include a base anchored to a printed circuit board. The latching mechanism may also include a latch coupled to the base such that a proximal end of the latch locks a proximal end of an expansion card to a fixed position on the printed circuit board. In addition the latching mechanism may include a compression spring wrapped around an arm of the latch such that the compression spring exerts a tension to maintain a locked position of the latch. Various other apparatuses, systems, and methods are also disclosed.

Abstract: The present invention provides a hand tool with reliable connections comprising: a working unit having a working end and a handle end opposite to the working end; a handle being mounted on the handle end of the working unit and having a working unit end and a knocking unit end; a knocking unit being mounted on the knocking unit end of the handle. The connecting part between the knocking unit and the handle end of the working unit is a contacting surface, the handle end or the contacting surface is configured as a deformable and non-rigid contact, realizing the reliable connection between the working unit and the knocking unit. The deformable and non-rigid contact is realized by the configuration of at least one of the contacting surface and the handle end being configured to be tooth-shaped, the tooth-shape can deform and form a gapless engagement with the contacting surface.

Abstract: The invention provides a ratchet clamp, comprising a first clamp arm, a second clamp arm and a ratchet mechanism provided between the first clamp arm and the second clamp arm. An elastic member is arranged between the ratchet mechanism and the second clamp arm. The ratchet mechanism includes a toothed bar, a pivoting member. The pivoting member includes a toothed piece, a housing and a lever. During clamping, the pivoting member pivots in whole within a certain range under the effect of the elastic member, and the toothed bar and toothed piece are engaged by undercut, maintaining the clamping force, and the elastic member protects the engagement between the toothed bar and the toothed piece from sliding apart. When opened, the interference fit between the toothed bar and the toothed piece enable the user to use small force pulling the lever to disengage the toothed piece, and also prevent accidental unloading force from opening the ratchet mechanism.

Abstract: The present invention discloses a thread-locking assembly characterized by comprising an externally threaded member with external thread and a threaded member with thread fitting with the externally threaded member, wherein the externally threaded member is movable relative to the threaded member through the engagement of the external thread and the thread, and a blocking member which is arranged outside the externally threaded member. The inside of the blocking member is provided with projections. There is space between the projections and the externally threaded member. When the externally threaded member inclines under force, friction is produced between the externally threaded member and the blocking member to perform the locking function.

Abstract: A multi-split system and a medium-pressure controlling method thereof are provided. The multi-split system includes an outdoor unit, a distribution device, and a plurality of indoor units. The distribution device includes a gas-liquid separator, a first heat exchange assembly, a first electronic expansion valve, a second heat exchange assembly and a second electronic expansion valve. The distribution device is configured to perform a routine correction on a medium-pressure control target value of the first electronic expansion valve according to the subcooling degree of the heating indoor unit, the outlet air temperature of the heating indoor unit and the opening of the throttling element in the heating indoor unit, and to correct a current medium-pressure control target value of the first electronic expansion valve according to a preset step when the opening of the throttling element reaches a maximum opening or a minimum opening and lasts for a first preset time.

Abstract: A glue bottle with flow regulation comprises a bottle body, a bottle cap, and a liquid outlet cap engaged with the bottle cap through thread. The bottle cap is partially contained in the liquid outlet cap. A cavity is formed between the inner wall of the liquid outlet cap and the outer wall of the bottle cap. and is provided with a first opening and a second opening. A seal body is arranged on the top part of the bottle cap, and is positioned inside of the cavity. The position of the seal body in the cavity is adjusted by rotating the liquid outlet cap relative to the bottle cap. The closer the seal body is to the second opening, the smaller the gap is between the liquid outlet cap and the bottle cap. The glue bottle is capable of precisely controlling the quantity of the glue flowing out.

Abstract: The present invention discloses a force relieving mechanism and a ratchet clamp having a force relieving mechanism. The force relieving mechanism includes a first ratchet member, a second ratchet member, a locking member, an actuating member and a restoring member. A first clamp arm of the ratchet clamp is fixedly arranged with a first ratchet member having a first set of ratchets, and a second ratchet member having a second set of ratchets is coupled to the second clamp arm by a second shaft and is rotatable in relation to the second ratchet member. The second ratchet member is provided with a first hole, the locking member passing through the first hole and being rotatable and translationally movable in the first hole. The actuating member applied a first actuation and a second actuation in turn to the locking member so as to cause the second set of ratchets to be detached from the first set of ratchets.

Abstract: An outdoor unit (100) for a heat recovery VRF air conditioning system and a heat recovery VRF air conditioning system are provided. The outdoor unit (100) comprises: a compressor (2), having an exhaust port (a) and a gas return port (b); a reversing assembly (3), having a first valve port (c), a second valve port (d), a third valve port (e) and a fourth valve port (f); an outdoor heat exchanger (4), having a first end connected to the first valve port (f), and a second end connected to the second connector (12); a plurality of one-way valves, wherein each one-way valve has a circulation end and a stop end, and each one-way valve is opened only in one direction from the circulation end to the stop end; a throttling element (6); and a gas-liquid separator (9).

Abstract: A flat drill having a handle, and a flat blade formed in the front portion of the handle part. A front portion of the flat blade extends inwardly from the two sides, forming first and second shoulder. The two shoulders continuing to extend and taper inward and upward, forming two tapered sections respectively, a first tapered section and a second tapered section, and having a pointed top. A first groove is formed on a blade part of the first shoulder toward the inside of the flat blade part. The inner edge of the first groove is inclined downward towards outside direction of the first shoulder, forming an angle of greater than 0 degree with respect to a horizontal line of the flat drill.

Abstract: The present invention provides a clamp, comprising a first clamp body, a second clamp body and a shank. The shank is configured to be passed through the first clamp body and the second clamp body. The clamp further comprises a stepping mechanism and a locking/unlocking mechanism. The stepping mechanism is comprised of a first handle, a second handle, driving sheets and a first elastic member. The first handle is pivotably mounted to the second clamp body by a pivot located on the first handle, and is configured to cooperate with the second handle. Driving sheets are mounted to the shank and contact a contact portion arranged on the first handle. A first elastic member is arranged to provide a pre-tightening force to the driving sheets to enable the driving sheets to be kept in constant contact with the contact portion, in which the pivot and the contact portion are located on the upper side of the shank. Raising the position of the pivot is beneficial to generate a larger clamping force.

Abstract: Polypeptide substrates based on modifications or fragments of the various APP isoforms, assay methods based on the use of these substrates, and screening methods directed toward identifying inhibitors of ?-secretase activity. The assay methods and the screening methods are adapted for use in high throughput multi-well plate assay apparatuses. In many embodiments the substrate polypeptides are labeled for ease of detection, and/or may bind specific ligands that themselves are labeled. Generally the labels promote high specificity as well as high sensitivity of detection. These features render the assay and screening methods that employ the labeled substrates especially suited for use in high throughput assay formats. This disclosure further identifies small polypeptides based on a subsequence motif of A? that are shown herein to be potent inhibitors of the activity of ?-secretase.

Abstract: The present invention discloses a thread-locking assembly characterized by comprising an externally threaded member with external thread and a threaded member with thread fitting with the externally threaded member, wherein the externally threaded member is movable relative to the threaded member through the engagement of the external thread and the thread, and a blocking member which is arranged outside the externally threaded member. The inside of the blocking member is provided with projections. There is space between the projections and the externally threaded member. When the externally threaded member inclines under force, friction is produced between the externally threaded member and the blocking member to perform the locking function.

Abstract: Provided are methods of treating or preventing a neurodegenerative disease comprising administering to a subject having a neurodegenerative disease an effective amount of a compound of Formula I: where X, R1, R2, subscript m, subscript n and subscript v are as defined herein.

Abstract: A flat drill having a handle, and a flat blade formed in the front portion of the handle part. A front portion of the flat blade extends inwardly from the two sides, forming first and second shoulder. The two shoulders continuing to extend and taper inward and upward, forming two tapered sections respectively, a first tapered section and a second tapered section, and having a pointed top. A first groove is formed on a blade part of the first shoulder toward the inside of the flat blade part. The inner edge of the first groove is inclined downward towards outside direction of the first shoulder, forming an angle of greater than 0 degree with respect to a horizontal line of the flat drill.