77results about How to "The lock state is stable" patented technology

The invention provides a paper width variable printer, which can correspond to perforated paper of various widths. In the variable paper width printer (1), among the left and right sprockets for conveying the perforated paper (3), one is set as a moving side sprocket (9) that can move closer to and farther away from the other, The upper paper guide (15) is connected to the moving side sprocket (9), and the upper paper guide (15) is installed on the side of the press plate (17) of the main frame (2) of the printer. On the horizontal plate portion (17b), this upper paper guide (15) is locked by a locking mechanism (50). Unlock the locking mechanism (50), slide the upper paper guide (15) along the width direction of the printer, and slide the moving side sprocket (9) and the side paper guide (19) connected thereto , it can be moved to a position corresponding to the format of the perforated paper 3 .

The invention provides a drawer pushing device for a draw-out switch cabinet. The drawer pushing device comprises a fixing bracket, wherein a pushing screw (3) is arranged on the fixing bracket; the pushing screw (3) is provided with a plurality of spiral grooves which can be engaged with a positioning member on a bottom plate of a drawer; a shaft sleeve gear (1) is fixedly arranged on a driving shaft; a positioning wheel is meshed with the shaft sleeve gear (1); the positioning wheel comprises a front end surface and a rear end surface; the outer peripheral edge of the rear end surface of the positioning wheel is provided with a plurality of drawer moving position positioning grooves; a positioning shaft is arranged on the fixing bracket; the positioning shaft comprises a positioning spring which can bias the positioning shaft to the positioning wheel; the positioning shaft can be matched with the drawer moving position positioning grooves; a radial locking groove (19) is arranged on the front side face of the positioning wheel.

The present invention opens a locking device. By virtue of the forward action it inserts the locking component 128 to the locking device 107a on the side of the holding part 109 so as to prevent the drawing of the storing box 111; by virtue of the back action it deviate the locking component 128 from the locking part 107a to allow the drawing out the storing box 111. Using the plate spring 129 set between the locking component 128 and the main body 113, it pushes the locking part 128 in the direction of inserting the locking part 107a. When it reaches the time that the holding part 109 is drawing out of the storing box 111, pull out the main body of the action bar which is supported by the axis and rotate at the outside of the box bulk 113 with finger to make the holding part 133b rotate, so that the locking component 128 resists to the push force of the plate spring 129 and moves to the direction which is opposite from the pushing direction and divorces from the locking part 107a. Thereby it can provide a structure-simple and cheap locking device.

The invention provides an electronic device with a hinge type closing structure, wherein a closing plate (40) is made to cover a housing groove (16) and keep at the stable latching position and arranged at one lateral far end part of the housing groove (16) along the width direction. A locking groove (18) is parallel to the housing groove (16) and arranged at another lateral far end part of the housing groove (16) along the width direction. A locking slice (44) projecting towards the locking groove (18) is arranged at the far-end edge part of the closing plate (40). A latch protrusion part (28) is arranged on the wall inner surface (26a) at the side of the locking groove (18) far away from the housing groove (16). A latching claw (46) engaged with the latch protrusion part (28) is arranged on the locking slice (44).

The invention relates to the field of buildings, and provides a pier column maintenance device and a film covering construction method. The pier column maintenance device comprises a rack fixed to a top of apier column, a lifting assembly slidably arranged on the rack in the circumferential direction of the pier column, and a maintenance film assembly which comprises a shaft rod and a maintenance film roll rotatably arranged on the shaft rod, wherein the shaft rod is connected with the lifting assembly; and the lifting assembly can lift or lower the maintenance film roll while sliding in the circumferential direction of the pier column so that the maintenance film roll can be wound around the pier column according to the spiral track. After the rack is hoisted at the top end of the pier column, a constructor can make the maintenance film spirally wind on the pier column on the ground through the lifting assembly, and therefore in the pier column maintenance film covering construction process, a crane does not need to be matched for construction, a support does not need to be erected, the construction period can be shortened, the construction cost can be reduced, high-altitude film covering operation of workers is avoided, and potential safety hazards of construction are eliminated.

The invention relates to a household moisture-proof box, and belongs to the field of furniture. The household moisture-proof box comprises a box body and a box cover, wherein the box body and the box cover are fixedly sealed through a plurality of fixing pieces, the box cover and the box body are provided with mounting holes which are matched with each other, the box cover is arranged on a first fixing ring in a sleeved mode through the mounting hole, the box body is arranged on a second fixing ring in a sleeved mode through the mounting hole, and the box cover and the box body are tightly pressed through the first fixing ring and the second fixing ring. According to the household moisture-proof box, the box cover and the box body are tightly pressed to be sealed, the operation is convenient and fast, and the sealing effect is good.

The invention discloses an adjustable baby carriage frame. The adjustable baby carriage frame comprises a fixed carriage frame, a rotary supporting frame, and an adjusting assembly which connects the fixed carriage frame with the rotary supporting frame so as to enable the rotary supporting frame to rotate relative to the fixed carriage frame, wherein an accommodating space for allowing a child safety seat to be accommodated is formed in the inner side of the rotary supporting frame; the adjusting assembly comprises a limiting part which can movably enter or withdraw from the accommodating space; when the limiting part enters the accommodating space, the adjusting assembly releases the restriction to the rotation of the rotary supporting frame; when the limiting part withdraws from the accommodating space, the adjusting assembly restricts the rotation of the rotary supporting frame; and when the child safety seat is mounted in the accommodating space, the limiting part is in a state of being withdrawn from the accommodating space. When the child safety seat is mounted in the adjustable baby carriage frame, the child safety seat is placed in the accommodating space, and the limiting part cannot enter the accommodating space, so that the adjustable baby carriage frame is in a stable locking state, and safety is improved.

The application provides a simulation training system of laparoscopic surgery. The simulation training system of the laparoscopic surgery comprises a box body for performing a surgical training operation, an organ model for simulating human organs and a plurality of pressure water bags, wherein the organ model is placed in the box body, a pipeline for simulating a human body fluid system is arranged in the organ model, and one end, located in the organ model, of the pipeline is closed, and the pipeline is provided with an interface outside the organ model; each pressure water bag comprises a water pipe, the outlet of the water pipe is mutually connected and communicated with a corresponding interface of the organ model, and each pressure water bag is provided with a pre-pressure regulatingstructure. The simulation training system of the endoscopic surgery provided by the application of the invention can simulate common complications and lesion resection actually occurring in the operation, and is good in training effect.

The invention relates to a seat footrest structure and a seat, and the footrest structure comprises: a supporting shaft which is provided with a first locking position and a second locking position along the circumferential direction; a footrest that comprises a root end and a free end which are oppositely arranged, wherein a containing cavity for containing the supporting shaft is formed in the root end, and the footrest can rotate relative to the supporting shaft; a movable locking piece that is arranged in the containing cavity of the footrest; the movable locking piece moves in the radialdirection of the supporting shaft, and when the footrest rotates to the position where the movable locking piece is connected with the first locking position and the second locking position, the footrest and the supporting shaft are kept relatively fixed, and the footrest is in a locked state; when the movable locking piece is separated from the first locking position and the second locking position, the footrest is in an unlocked state and rotates around the supporting shaft; the invention discloses the seat. The footrest can be folded below the seat part. Compared with the prior art, the seat footrest structure has the advantages of being compact and simple in structure, convenient to operate, small in occupied space, more convenient to modulate, wider in application range and concise and attractive in appearance.

The invention relates to an electric wiring terminal which can solve the problems of easy failure of crimping and poor stability caused by compensating the distance between wires with different sizesand a wire pressing body only by means of the elastic deformation of an elastic sheet in the prior art. The electric wiring terminal comprises a shell in which a crimping cavity for a wire to enter isformed; and the wire pressing body which is rotationally or movably assembled on the shell. The shell is provided with a locking part which is matched with the wire pressing body in a locking manner,and the wire pressing body can be locked with the locking part at multiple positions in the rotating or moving stroke of the wire pressing body so as to press wires with different wire diameters to realize the conductive connection. The wire pressing body is provided with a plurality of positions matched with the locking parts, an operator selects different positions to adapt to the wires of different sizes, the position where the wire pressing body is located corresponds to the radial size of the wires, and the wire pressing body can be matched with the locking part on the shell at each position to press the wires.

The invention discloses a lock mechanism and a dish washing machine. The locking mechanism comprises a guide part, a sliding block, a clamping hook and a locking unit, wherein the clamping hook comprises a first matching position and a second matching position which are staggered, the first matching position is movably connected with the sliding block, then the clamping hook can move along with the sliding block and can rotate relative to the sliding block, the guide part is provided with a first guide rail arranged in the moving direction of the sliding block, the second matching position is in sliding fit with the first guide rail, the first guide rail comprises a first guide section and a second guide section which are sequentially communicated in the unlocking direction, and the clamping hook can tightly grasp a spring bolt to the inner side of the clamping hook in the locking state, the second guide section is located at the position away from the inner side of the clamping hook relative to the first guide section, and the locking unit is matched with the sliding block to be used for preventing the sliding block from moving in the unlocking direction in the locking state. In the locking or unlocking process, the state of the clamping hook is guided by the first guide rail, so that the state is stable; and after long-time use, the rotation angle of the clamping hook is still stable, and the convenience in the opening and closing process is kept.

The invention discloses a copper foil cooling water plate structure convenient for cleaning blockage, the copper foil cooling water plate structure comprises a cooling water plate convenient cleaning mechanism, the cooling water plate convenient cleaning mechanism comprises a guide main body, a main frame, a cooling plate mounting frame, a binding frame and a flip cover, and the guide main body and the main frame are rotatably mounted together. The cooling plate mounting frame and the guide main body are slidably mounted together, the rear end of the binding frame and the main frame are rotatably mounted together, the binding frame is mounted at the outer ends of the cooling plate mounting frame and the flip cover in a sleeving manner, the flip cover and the guide main body are slidably mounted together, and the cooling plate mounting frame and the flip cover are in sliding contact with the main frame. The guide main body comprises a pair of L-shaped guiding rods, a baffle ring, a first rotating shaft, a limiting block, a spherical convex block, a first baffle block and a second baffle block. The invention relates to the technical field of cooling water plate equipment, the cooling water plate can be conveniently unfolded and closed, so that the overall cleaning work is facilitated, and the use requirements are better met.

The invention relates to a hydraulic cylinder mechanical locking device which comprises a secondary piston, a secondary rod and a nut holding frame. The secondary rod is mounted in a mounting through hole of the secondary piston, a positioning ring of the secondary rod and a positioning step of the secondary piston are mutually matched and positioned, one end of the nut holding frame with a counter bore can axially translate along the secondary rod and is inserted into or drawn out of a cavity between a baffle ring of the secondary piston and the outside of the secondary rod, and a steel ball in the nut holding frame can be clamped into or drawn out of an annular groove of the secondary rod in the translation process of the nut holding frame. The invention further discloses a mechanically-locked hydraulic cylinder base don the hydraulic cylinder mechanical locking device and a locking method of the hydraulic cylinder. According to the locking device, the steel ball cannot contact with the hydraulic cylinder, the hydraulic cylinder cannot be damaged, unlocking pressure ranges from 0.5MPa to 1MPa and is low and uniform, synchronism in the unlocking process is good, force bearing points are positioned on the steel ball and the nut holding frame, locking force is large, impact loads can be born, the locking device is high in positioning accuracy, service life is prolonged, and the locking effect of the hydraulic cylinder is improved.