Abstract: In certain example embodiments, provided is a compact massager, comprising: (1) one or more massage head attachment portions; and (2) a massager body, wherein the massager body is configured to connect with the one or more massage head attachment portions at the front body side, the massager body further comprises: (i) a motor; (ii) a PCBA; (iii) a display; (iv) a power source; wherein the power source is configured to electrically connect with the motor, the PCBA and the display; (v) a Z-shaped, transmission crank, configured to translate rotary motion from the motor to reciprocating motion of the one or more massage head attachment portions; and (vi) a counterweight, having an eccentric cam, an input shaft and an output shaft, wherein the input shaft is disposed at one side of the cam and is operatively connected to the motor, and an output shaft is disposed at an opposing side of the cam and is operatively connected to the transmission crank.

Abstract: The present application discloses an adjustment assembly and a headrest. The adjustment assembly includes: a guiding rod; a fixing member, fixed to an end of the guiding rod; a driving portion, movably connected to the fixing member; and a first screw, engaged to the fixing member with threads, and the driving portion is connected to the fixing member by the first screw, wherein the driving portion includes a first motor, and the first motor is used to drive the driving portion to linearly move in respect to the fixing member along a direction close to or away from the fixing member. The adjustment assembly of the application can be adjusted electrically, such that the operation is convenient, and the structure is simple and reliable.

Abstract: A lubricator assembly for servicing a tubular member includes a mounting base, a lubricant housing movably coupled to the mounting base and configured to receive lubricant from a lubricant source, a guide pin slidably disposed in the lubricant housing, a first seal positioned between the guide pin and the lubricant housing and a second seal positioned between the guide pin and the lubricant housing, and a first chamber extending between the first seal and the second seal, wherein the guide pin is configured to direct lubricant disposed in the first chamber against the tubular member in response to the tubular member engaging the guide pin.

Abstract: A pallet lifting rack includes a pair of lifting devices. Each of the lifting devices has a frame, a movable bracket mounted on the frame and movable in a vertical direction relative to the frame, a support member connected to the movable bracket, and a driving device driving the movable bracket and the support member to move along the vertical direction. The support members of the pair of lifting devices support a bottom surface of a pallet from a pair of sides of the pallet, so that the pallet is supported on the support members and movable to different height positions in the vertical direction by the support members.

Abstract: A lubricator assembly for servicing a tubular member includes a mounting base, a lubricant housing movably coupled to the mounting base and configured to receive lubricant from a lubricant source, a guide pin slidably disposed in the lubricant housing, a first seal positioned between the guide pin and the lubricant housing and a second seal positioned between the guide pin and the lubricant housing, and a first chamber extending between the first seal and the second seal, wherein the guide pin is configured to direct lubricant disposed in the first chamber against the tubular member in response to the tubular member engaging the guide pin.