Self-locking type power-assisted handle device

Abstract

According to the self-locking type power-assisted handle device, a handle assembly is rotationally connected with a self-locking assembly, a shell assembly is arranged on the self-locking assembly, the shell assembly is fixed to a pulling-installing piece, and when the device needs to be opened, the handle assembly rotates in the direction away from the self-locking assembly till the handle assembly is parallel to the direction where the self-locking assembly is located; when the device needs to be closed, the handle assembly rotates in the direction close to the self-locking assembly until the handle assembly is perpendicular to the direction where the self-locking assembly is located, and the self-locking assembly is automatically locked through the handle assembly and the self-locking assembly, and the device in the open state can drive the pulling-installing piece to be pushed into or pulled out of the self-locking piece. The device is in a closed state, the handle assembly and the self-locking assembly are automatically locked, and the device in the closed state can enable the drawing and installing piece and the self-locking piece to be locked. A two-stage power assisting structure can be formed, manual operation is saved, the device can be automatically locked in the opening state and the closing state and is not affected by reverse thrust, structural failure is avoided, and operation is facilitated.

Description

Technical field

[0001] In view of this, it is necessary to provide a novel self-locking power-assisting handle device to overcome the above-mentioned defects. [Summary of the invention] The purpose of the present invention is to provide a self-locking power-assisting handle device to solve the above technical problems.

[0002] In order to achieve the above-mentioned object, the present invention provides a self-locking power-assisting handle device, which is arranged on a drawer and is used to drive the drawer to push or withdraw the drawer into or from a locking member for accommodating the drawer; the self-locking power-assisting handle device includes two symmetrically arranged handle mechanisms, the two handle mechanisms are respectively arranged on both sides of the drawer, the handle mechanisms include a handle assembly, a self-locking assembly and a housing assembly, the handle assembly is rotatably connected to the self-locking assembly, the housing assembly is arranged on the self-locking assembly, and the housing assembly is fixed to the drawer; When the self-locking power-assisting handle device needs to be opened, the handle assembly is rotated in a direction away from the self-locking assembly until the handle assembly is parallel to the direction of the self-locking assembly, so that the self-locking power-assisting handle device is in an open state and the handle assembly and the self-locking assembly are automatically locked. The self-locking power-assisting handle device in the open state can drive the drawer to push in or draw out of the self-locking assembly; When the self-locking power-assisted handle device needs to be closed, the handle assembly is rotated in the direction close to the self-locking assembly until the handle assembly is perpendicular to the direction of the self-locking assembly, so that the self-locking power-assisted handle device is in a closed state and the handle assembly and the self-locking assembly are automatically locked. The self-locking power-assisted handle device in the closed state can lock the drawer and the self-locking part.

[0003] In a preferred embodiment, the handle assembly includes a handle rod, a button and a rivet, the handle rod includes an upper surface and a lower surface opposite to the upper surface, the handle rod is provided with a plurality of rivet holes passing through the upper surface and the lower surface, the lower surface is provided with a guide groove, the rivet hole is connected to the guide groove and the rivet hole is located on one side of the guide groove, the button is installed in the guide groove, and a plurality of limiting grooves are provided on the side of the button close to the rivet hole, the rivet passes through the rivet hole and is located in the limiting groove.

[0004] In a preferred embodiment, one end of the handle rod away from the self-locking component extends toward the inside of the handle rod to form a gripping portion. When the self-locking power-assisted handle device is in a closed state, one end of the button exceeds the edge of the gripping portion, and the other end of the button abuts against the self-locking component.

[0005] In a preferred embodiment, one end of the handle rod close to the self-locking component extends toward the inner side of the handle rod to form a mounting portion, and the mounting portion is provided with a first fixing hole and a first connecting hole penetrating therethrough, the first fixing hole is used to connect with the shell component after inserting the first rotating connecting member, and the first connecting hole is used to connect with the self-locking component after inserting the second rotating connecting member, and a first receiving groove is provided at the inner edge position of the mounting portion, the first receiving groove is located between the upper surface and the lower surface and the first receiving groove is connected to the first connecting hole, and the first receiving groove is used to receive the self-locking component.

[0006] In a preferred embodiment, a protrusion is provided at one end of the handle bar close to the mounting portion, the protrusion is protruding from the upper surface, and the protrusion defines a first receiving cavity facing the inner side of the handle bar, wherein the first receiving cavity receives a magnet.

[0007] In a preferred embodiment, the self-locking assembly includes a connecting rod and a caliper, the caliper being used to clamp the pull-out part and the locking part; the caliper includes a first clamp arm and a second clamp arm arranged on the first clamp arm, the first clamp arm including a top surface and a bottom surface opposite to the top surface, one end of the first clamp arm is provided with a second fixing hole and a second connecting hole passing through the top surface and the bottom surface, the second clamp arm is provided with a third fixing hole opposite to the position of the second fixing hole, the second fixing hole and the third fixing hole are used to be inserted into the first rotating connecting member and then connected to the housing assembly, a second receiving groove is provided at the edge position of one end of the first clamp arm, the second receiving groove is located between the top surface and the bottom surface and the second receiving groove is communicated with the second connecting hole, the second connecting hole is used to be inserted into the second rotating connecting member and then rotatably connected to the connecting rod, one end of the connecting rod is inserted into the second receiving groove, and the other end of the connecting rod is connected to the handle assembly through the second rotating connecting member; the handle assembly abuts against the side of the first clamp arm.

[0008] In a preferred embodiment, the self-locking assembly also includes a tongue and a torsion spring, and the shell assembly includes a lower shell, the inner surface of the lower shell is provided with a groove for accommodating the tongue, a first hook is provided in the groove, and a second hook is protruding from one side of the tongue, one end of the torsion spring is clamped in the first hook, and the other end of the torsion spring is clamped in the second hook, one end of the tongue extends toward the lower shell to form a holding portion, and the holding portion abuts against the handle assembly; when the holding portion is subjected to force, the tongue can rotate in the groove and compress the torsion spring, and when the torsion spring is released, it can push the tongue to rotate and reset.

[0009] In a preferred embodiment, the self-locking component also includes a slider and a spring, the housing assembly includes an upper shell, the upper shell is connected to the handle assembly and the caliper respectively by penetrating the first rotating connecting member, the inner surface of the upper shell is provided with a recess, and the top surface of the first caliper arm is formed with a positioning groove; one end of the slider extends toward the direction close to the upper shell to form a rest portion, the rest portion is clamped in the recess, and one side of the rest portion is provided with a limiting portion perpendicular to the rest portion, the two ends of the spring respectively rest against the upper shell and the limiting portion, the limiting portion is clamped in the positioning groove, and the end of the slider away from the spring extends toward the direction close to the caliper to form a guide portion, and the guide portion rests against the second caliper arm; when the caliper rotates a preset angle, the spring applies elastic force to push the slider so that the limiting portion is clamped in the positioning groove and the guide portion pops out to achieve automatic locking. When the drawer pushes the locking member into the locking member, the guide portion can be retracted, thereby causing the limiting portion to disengage from the positioning groove to achieve automatic unlocking.

[0010] In a preferred embodiment, the outer surface of the upper shell is provided with a fixed wall, and the fixed wall is fixedly connected to the drawer through fasteners. The shell assembly also includes a cover plate, and the cover plate is fixedly connected to the upper shell and the lower shell respectively through fasteners.

[0011] In a preferred embodiment, a second receiving cavity is formed on a side of the upper shell close to the handle assembly, and a magnet is received in the second receiving cavity.

[0012] Compared with the prior art, the self-locking power-assist handle device provided by the present invention has two handle mechanisms respectively arranged on both sides of the drawer, and the handle mechanism includes a handle assembly, a self-locking assembly and a shell assembly, the handle assembly is rotatably connected to the self-locking assembly, the shell assembly is arranged on the self-locking assembly, and the shell assembly is fixed to the drawer. When the self-locking power-assist handle device needs to be opened, the handle assembly is rotated in a direction away from the self-locking assembly until the handle assembly is parallel to the direction where the self-locking assembly is located, so that the self-locking power-assist handle device is in the open state and the handle assembly and the self-locking assembly are automatically locked, and the self-locking power-assist handle device in the open state can drive the drawer to push When the self-locking power-assist handle device needs to be closed, the handle assembly is rotated in the direction close to the self-locking assembly until the handle assembly is perpendicular to the direction of the self-locking assembly, so that the self-locking power-assist handle device is in a closed state and the handle assembly and the self-locking assembly are automatically locked. The self-locking power-assist handle device in the closed state can lock the extraction part and the self-locking part, and the handle assembly and the self-locking assembly can be linked to form a secondary power-assist structure, saving manpower operation. The state of the device can be switched by rotating the handle assembly, and the handle assembly and the self-locking assembly can be automatically locked in the open state and the closed state, without being affected by the reverse thrust, avoiding structural failure, and facilitating operation.

Brief Description of the Drawings

[0013] Figure 1 This is a structural diagram of the self-locking power-assisting handle device provided by the present invention pushing the drawer into the locking member.

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 This is a combined structural diagram of the handle mechanism in the self-locking power-assisted handle device provided by the present invention.

[0016] Figure 4 This is an exploded structural diagram of the handle mechanism in the self-locking power-assisted handle device provided by the present invention.

[0017] Figure 5 This is another exploded structural diagram of the handle mechanism in the self-locking power-assisted handle device provided by the present invention.

[0018] Figure 6This is a structural diagram of the self-locking assembly in the self-locking power-assisted handle device provided by the present invention.

[0019] Figure 7 This is an exploded structural diagram of the self-locking component in the self-locking power-assisted handle device provided by the present invention.

[0020] Figure 8 This is a schematic diagram of the self-locking power-assisted handle device provided by the present invention during the closing process.

[0021] Figure 9 for Figure 8 Enlarged view of point B in the middle.

[0022] Figure 10 This is a schematic diagram of the self-locking power-assisted handle device provided by the present invention in the closed state.

[0023] Figure 11 for Figure 10 Enlarged view of point C in the middle.

[0024] Explanation of reference numerals: 100 - self-locking power-assisted handle device, 101 - handle mechanism, 102 - first rotating connection member, 103 - second rotating connection member, 200 - withdrawable member, 201 - mounting wall, 202 - mounting opening, 203 - outer edge, 300 - self-locking member, 301 - side wall, 302 - locking hole; 10 - handle assembly, 11 - handle bar, 110 - magnet, 111 - upper surface, 112 - lower surface, 113 - rivet hole, 114 - guide groove, 115 - grip portion, 116 - mounting portion, 1161 - first fixing hole, 1162 - first connecting hole, 1163 - first receiving groove, 117 - bump, 118 - first receiving cavity; 12 - button, 121 - limiting groove; 13 - rivet; 20 - self-locking assembly, 21 - caliper, 211 - first caliper arm, 2110 - positioning groove, 2111 - top surface, 2112 - bottom surface, 2113 - second fixing hole, 2114 - second connecting hole, 2115 - second receiving groove, 212 - second caliper arm, 2121 - third fixing hole, 22 - connecting rod, 23 - latching tongue, 231 - second hook, 232 - holding portion, 233 - latching shaft, 24 - torsion spring, 25 - slider, 251 - abutting portion, 252 - limiting portion, 253 - mounting shaft, 254 - guide portion, 26 - spring; 30 - shell assembly, 31 - lower shell, 311 - groove, 312 - first hook, 32 - upper shell, 321 - depression, 322 - fixed wall, 323 - second receiving cavity, 33 - cover plate, 331 - fastener. [Specific implementation method] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1 , which is a structural diagram of the self-locking power-assisted handle device 100 provided by the present invention, pushing the drawer 200 into the locking member 300. The self-locking power-assisted handle device 100 provided by the present invention can link the handle assembly and the self-locking assembly to form a two-stage power-assisted structure, saving manpower. The state of the device can be switched by rotating the handle assembly. The handle assembly and the self-locking assembly can automatically lock in both the open and closed states, unaffected by reverse thrust, avoiding structural failure and facilitating operation.

[0026] Please also refer to Figure 2 The self-locking power-assisting handle device 100 is disposed on the drawer 200 and is used to drive the drawer 200 to be pushed into or withdrawn from the locking member 300 used to accommodate the drawer 200. Specifically, the drawer 200 is a plate-shaped structure, with mounting walls 201 disposed on both sides of the drawer 200. The mounting walls 201 are provided with mounting openings 202, and the side walls 301 of the locking member 300 are provided with locking holes 302. The self-locking power-assisting handle device 100 is connected and fixed to the mounting walls 201. When the drawer 200 is fully pushed into the self-locking member 300, the mounting opening 202 and the locking hole 302 are positioned opposite each other, and the self-locking power-assisting handle device 100 can be inserted into the mounting opening 202 and the locking hole 302, thereby locking the drawer 200 and the self-locking member 300. The drawer 200 can specifically be a cold plate server.

[0027] The self-locking power-assisted handle device 100 includes two symmetrically arranged handle mechanisms 101. The two handle mechanisms 101 are respectively arranged on both sides of the drawer 200, usually on the left and right sides. That is, the two handle mechanisms are respectively a left handle mechanism and a right handle mechanism. The structure of the handle mechanism is described in detail below. Figure 3-Figure 7 The structures shown are all right handle mechanisms. It can be understood that the left handle structure is completely symmetrical with the right handle structure, and this application will not elaborate on them.

[0028] See also Figure 3The handle mechanism 101 includes a handle assembly 10, a self-locking assembly 20 and a shell assembly 30. The handle assembly 10 is rotatably connected to the self-locking assembly 20. The shell assembly 30 is arranged on the self-locking assembly 20, and the shell assembly 30 is fixed to the drawer 200.

[0029] Specifically, when the self-locking power-assisted handle device 100 needs to be opened, the handle assembly 10 is rotated in a direction away from the self-locking assembly 20 (i.e., the handle assembly rotates outward) until the handle assembly 10 is parallel to the direction of the self-locking assembly 20, so that the self-locking power-assisted handle device 100 is in an open state and the handle assembly 10 and the self-locking assembly 20 are automatically locked. The self-locking power-assisted handle device 100 in the open state can drive the withdrawing member 200 to push in or withdraw from the self-locking member 300; When the self-locking power-assisted handle device 100 needs to be closed, the handle assembly 10 is rotated toward the direction close to the self-locking assembly 20 (i.e., the handle assembly rotates inward) until the handle assembly 10 is perpendicular to the direction of the self-locking assembly 20, so that the self-locking power-assisted handle device 100 is in a closed state and the handle assembly 10 and the self-locking assembly 20 are automatically locked. The self-locking power-assisted handle device 100 in the closed state can lock the drawer 200 and the self-locking assembly 300.

[0030] It can be understood that in actual application, the initial state of the self-locking power-assisted handle device 100 is a closed state, that is, the handle assembly 10 is perpendicular to the direction of the self-locking assembly 20, and the handle assembly 10 is against the outer edge 203 between the two mounting walls 201 of the pull-out part 200. The direction of the handle assembly 10 is parallel to the outer edge 203, which can reduce the occupied space.

[0031] When it is necessary to move the pull-out part 200, it is necessary to open the self-locking power-assisted handle device 100, and rotate the handle assembly 10 in the direction away from the self-locking assembly 20 until the handle assembly 10 is parallel to the direction of the self-locking assembly 20. At this time, the direction of the handle assembly 10 is perpendicular to the outer edge 203, and after the self-locking power-assisted handle device 100 is opened, the handle assembly 10 and the self-locking assembly 20 are automatically locked, which can ensure that the device is in an open state and cannot be closed during the pushing in or pulling out process, making it easy to push in or pull out the self-locking part.

[0032] When the pull-out part 200 is fully pushed into the self-locking part 300, the handle assembly 10 and the self-locking part 20 can be automatically unlocked. At this time, the self-locking power-assisted handle device 100 needs to be closed, and the handle assembly 10 is rotated in the direction close to the self-locking part 20 until the handle assembly 10 is perpendicular to the direction of the self-locking part 20. The handle assembly 10 is again against the outer edge 203, and the handle assembly 10 and the self-locking part 20 are automatically locked again. The self-locking power-assisted handle device 100 in the closed state can lock the pull-out part 200 and the self-locking part 300.

[0033] Therefore, the self-locking power-assisting handle device 100 provided by the present invention has two handle mechanisms 101 respectively arranged on both sides of the drawer 200, and the handle mechanism 101 includes a handle assembly 10, a self-locking assembly 20 and a shell assembly 30. The handle assembly 10 is rotatably connected to the self-locking assembly 20, and the shell assembly 30 is arranged on the self-locking assembly 20. The shell assembly 30 is fixed to the drawer 200. When the self-locking power-assisting handle device 100 needs to be opened, the handle assembly 10 is rotated in a direction away from the self-locking assembly 20 until the handle assembly 10 is parallel to the direction of the self-locking assembly 20, so that the self-locking power-assisting handle device 100 is in an open state and the handle assembly 10 and the self-locking assembly 20 are automatically locked. The self-locking power-assisting handle device 100 in the open state can When the self-locking power-assist handle device 100 needs to be closed, the handle assembly 10 is rotated in the direction close to the self-locking assembly 20 until the handle assembly 10 is perpendicular to the direction of the self-locking assembly 20, so that the self-locking power-assist handle device 100 is in a closed state and the handle assembly 10 and the self-locking assembly 20 are automatically locked. The self-locking power-assist handle device 100 in the closed state can lock the withdrawing part 200 and the self-locking part 300, and the handle assembly and the self-locking assembly can be linked to form a secondary power-assist structure, saving manpower operation. The state of the device can be switched by rotating the handle assembly, and the handle assembly and the self-locking assembly can be automatically locked in the open state and the closed state, without being affected by the reverse thrust, avoiding structural failure, and facilitating operation.

[0034] See also Figures 4 to 7The handle assembly 10 includes a handle rod 11, a button 12 and a rivet 13. The handle rod 11 includes an upper surface 111 and a lower surface 112 opposite to the upper surface 111. The handle rod 11 is provided with a plurality of rivet holes 113 passing through the upper surface 111 and the lower surface 112. The lower surface 112 is provided with a guide groove 114. The guide groove 114 is opened along the direction of the handle rod 11 (that is, the length direction of the handle rod 11). The rivet hole 113 is connected to the guide groove 114 and the rivet hole 113 is located on one side of the guide groove 114. The button 12 is installed in the guide groove 114. The button 12 is a long strip button that can slide in the guide groove 114 and can limit the button and guide position. A plurality of limiting grooves 121 are opened on one side of the button 12 close to the rivet hole 113. The rivet 13 passes through the rivet hole 113 and is located in the limiting groove 121, which can realize the limiting of the button 12.

[0035] One end of the handle rod 11 away from the self-locking component 20 extends toward the inside of the handle rod 11 to form a gripping portion 115. When the self-locking power-assisted handle device 100 is in a closed state, one end of the button 12 exceeds the edge of the gripping portion 115, and the other end of the button 12 abuts against the self-locking component 20, so that when the device needs to be opened, one end of the button 12 is pressed, and the other end of the button pushes the self-locking component 20.

[0036] One end of the handlebar 11, which is close to the self-locking assembly 20, extends toward the inside of the handlebar 11 to form a mounting portion 116. The mounting portion 116 has a first fixing hole 1161 and a first connecting hole 1162 extending therethrough. The first fixing hole 1161 is used to insert the first rotating connector 102 and then connect to the housing assembly 30. The first connecting hole 1162 is used to insert the second rotating connector 103 and then connect to the self-locking assembly 20. A first receiving groove 1163 is formed at the inner edge of the mounting portion 116. The first receiving groove 1163 is located between the upper surface 111 and the lower surface 112 and is connected to the first connecting hole 1162. The first receiving groove 1163 is used to receive the self-locking assembly 20. Specifically, the first rotating connector 102 is a large-flange axle pin, and the second rotating connector 103 is a small-flange axle pin.

[0037] A protrusion 117 is provided at one end of the handle rod 11 close to the mounting portion 116. The protrusion 117 is protruded on the upper surface 111. The protrusion 117 is provided with a first receiving cavity 118 facing the inner side of the handle rod 11. The first receiving cavity 118 accommodates a magnet 110. The installed magnet can be attracted to the self-locking component 20 to achieve a more stable closing state and a more secure locking.

[0038] The self-locking assembly 20 includes a caliper 21 and a connecting rod 22. The caliper 21 is used to clamp the draw-out part 200 and the locking part 300. The caliper 21 includes a first caliper arm 211 and a second caliper arm 212 provided on the first caliper arm 211. The first caliper arm 211 includes a top surface 2111 and a bottom surface 2112 opposite to the top surface 2111. One end of the first caliper arm 211 is provided with a second fixing hole 2113 and a second connecting hole 2114 that pass through the top surface 2111 and the bottom surface 2112. The second caliper arm 212 is provided with a third fixing hole 2121 opposite to the second fixing hole 2113. The second fixing hole 2113 and the third fixing hole 2121 are used to insert the first rotating connecting rod 22. The connecting member 102 is connected to the shell assembly 30 at the back, and a second receiving groove 2115 is opened at the edge of one end of the first clamp arm 211, and the second receiving groove 2115 is located between the top surface 2111 and the bottom surface 2112, and the second receiving groove 2115 is connected to the second connecting hole 2114. The second connecting hole 2114 is used to insert the second rotating connecting member 103 and then rotatedly connected to the connecting rod 22. One end of the connecting rod 22 is inserted into the second receiving groove 2115, and the other end of the connecting rod 22 is connected to the handle assembly 10 through the second rotating connecting member 103.

[0039] Specifically, through-holes are formed at both ends of the connecting rod 22. Small pivot pins are inserted into both ends of the connecting rod 22 to connect the mounting portion 116 of the handlebar 11 and the first caliper arm 211 of the caliper 21, respectively. This connects the handlebar and caliper to form a linkage, creating a two-stage power-assist mechanism through the linkage, saving manpower. Large pivot pins are inserted into the second fixing hole 2113 and the third fixing hole 2121 to connect the caliper 21 to the cover assembly 30.

[0040] The handle assembly 10 abuts against the side of the first clamp arm 211. Specifically, the side of the first clamp arm 211 close to the handle assembly 10 is arc-shaped, and the mounting portion 116 of the handle rod 11 abuts against the arc-shaped side. When the handle rod 11 rotates, it can push the caliper 21 to rotate. The two clamp arms can form two opposite clamping portions at one end away from the handle assembly, which are used to clamp on the pull-out part 200 and the self-locking part 300.

[0041] The self-locking assembly 20 also includes a latch 23 and a torsion spring 24. The housing assembly 30 includes a lower shell 31 and an upper shell 32. The inner surface of the lower shell 31 (i.e., the surface closest to the self-locking assembly) is provided with a groove 311 for accommodating the latch 23. A first hook 312 is disposed within the groove 311. A second hook 231 protrudes from one side of the latch 23. The second hook 231 is capable of restraining the torsion spring and applying its elastic force to the latch, causing it to rebound. One end of the torsion spring 24 is retained within the first hook 312, while the other end of the torsion spring 24 is retained within the second hook 231. One end of the latch 23 extends toward the lower shell 31 to form a hook-shaped retaining portion 232. When the device is closed, the retaining portion 232 can hook into the handle restraint device to prevent it from opening. The clamping portion 232 abuts against the handle assembly 10 . When the clamping portion 232 is subjected to force, the latch tongue 23 can rotate in the groove 311 and compress the torsion spring 24 . When the torsion spring 24 is released, it can push the latch tongue 23 to rotate and return to its original position.

[0042] Specifically, one end of the button 12 abuts against the holding portion 232 of the latch 23. When the device needs to be opened, pressing the button 12 can push the latch 23 to rotate, disengaging the handle rod 11 from the position, and unlocking the device. When the device needs to be closed, the handle rod 11 rotates until it abuts against the latch 23 again, and the torsion spring 24 pushes the latch 23 to reset and tighten the handle rod 11 to limit the opening of the device, thereby achieving automatic locking of the device.

[0043] A protruding latch shaft 233 is provided at one end of the latch tongue 23 away from the holding portion 232. The latch shaft 233 is used to be inserted into the shell assembly 30 and then connected to the shell assembly 30. The latch shaft 233 can cooperate with the upper shell mounting hole and the lower shell mounting hole to limit the position and rotation of the latch tongue.

[0044] The self-locking assembly 20 also includes a slider 25 and a spring 26. The upper shell 32 is connected to the handle assembly 10 and the caliper 21 respectively by penetrating the first rotating connecting member 102. The inner surface of the upper shell 32 (the surface close to the self-locking assembly) is provided with a recess 321. The top surface of the first clamp arm 211 is formed with a locking groove 2110. The locking groove 2110 can be formed by the structure of the first clamp arm and the second clamp arm.

[0045] One end of the slider 25 extends toward the upper shell 32 to form a stopper 251. The stopper 251 is retained within the recess 321. A stopper 252 is provided on one side of the stopper 251, perpendicular to the stopper 251. The ends of the spring 26 respectively abut against the upper shell 32 and the stopper 252. Specifically, the stopper 252 is provided with a mounting shaft 253, which the spring 26 is sleeved on. This stops the spring and restricts its position, preventing it from deviating and causing failure. The stopper 252 is retained within the retaining groove 2110. The end of the slider 25 away from the spring 26 extends toward the caliper 21 to form a guide 254, which abuts the second caliper arm 212. When the caliper 21 rotates to a preset angle, the spring 26 applies elastic force to push the slider 25 so that the limiting part 252 is locked in the locking groove 2110 and the guide part 254 pops out to achieve automatic locking. When the pull-out part pushes into the locking part 300, the guide part 254 can retract, thereby causing the limiting part 252 to disengage from the locking groove 2110 and achieve automatic unlocking.

[0046] The housing assembly 30 also includes a cover plate 33, which is fixedly connected to the upper shell 32 and the lower shell 31 via fasteners 331. The cover plate 31 is located on the side of the upper and lower shells away from the handle assembly, protecting the internal components and not interfering with their movement. The fasteners 331 are specifically screws that secure the components.

[0047] The outer surface of the upper shell 32 is provided with a fixed wall 322, and the fixed wall 322 is fixedly connected to the drawer 200 by a fastener 331. The fixed wall 322 is specifically fixed on the mounting wall 201 of the drawer 200, so as to realize the fixed connection between the handle mechanism 101 and the drawer. A second receiving cavity 323 is provided on the side of the upper shell 32 close to the handle assembly 10. The second receiving cavity 323 contains a magnet 110. The magnet can be attracted to the handle assembly 10 to achieve a more stable closing state and a more secure locking. The magnet can increase the magnetic attraction force and magnetically attract the handle assembly to the upper shell when it reaches a certain position, thereby helping to increase the use effect of the handle device.

[0048] The self-locking power-assisted handle device 100 provided by the present invention comprises: (1) The button 12 is installed in the guide groove 114 of the handlebar 11, and the rivet 13 is installed in the rivet hole 113 and the limit groove 121 to limit the movement of the button 12. The magnet 110 is installed in the receiving cavity 118 of the handlebar 11. One end of the connecting rod 22 is placed in the first receiving groove 1163 of the handlebar 11, and the other end of the connecting rod 22 is placed in the second receiving groove 2115 of the caliper 21. A small pivot pin is inserted into the first connecting hole 1162, and a small pivot pin is inserted into the second connecting hole 2114. The flaps are tightened, and the handlebar 11 and the caliper 21 are connected through the connecting rod 22 to form a two-stage linkage structure.

[0049] (2) Place the latch tongue 23 in the groove 311 of the lower shell 31, install the latch shaft 233 into the mounting hole of the lower shell 31, install the short arm of the torsion spring 24 into the first hook 312 of the lower shell 31, and lock the long arm in the second hook 231 of the latch tongue 23. The elastic force of the torsion spring 24 is applied to the latch tongue 23.

[0050] (3) Two large pivot pins are installed into the upper shell 32. The components of step (1) are installed on the upper shell 32. Specifically, the large pivot pin is inserted into the first fixing hole 1161 of the handle bar 11, and the large pivot pin is inserted into the second fixing hole 2113 and the third fixing hole 2121 of the caliper 21; the spring 26 is sleeved on the mounting shaft 253 of the slider 25, and the abutting portion 251 of the slider 25 is placed in the recess 321 of the upper shell 32. The limiting portion 252 is clamped in the clamping groove 2110 on the first caliper arm 211, and the guide portion 254 is abutted against the second caliper arm 212, completing the installation of the slider.

[0051] (4) Install the assembly parts of step (2) onto the assembly parts of step (3), fasten the upper shell 32 and the lower shell 31 with the fastener 331, use the large hinge pin to hinge and fasten the upper and lower shells, install the cover plate 33 into the reserved holes of the upper and lower shells, and install the fastener 331 to fasten the cover plate 33 to complete the assembly of the device.

[0052] In actual application, when it is necessary to open the self-locking power-assisted handle device, the button 22 is pressed to push the latch 23 to rotate, disengage the handle rod 11 from the position, and the handle assembly 10 and the self-locking assembly 20 are unlocked; the handle rod 11 rotates in the direction away from the self-locking assembly 20, driving the connecting rod 22, and the connecting rod 22 drives the caliper 21 to form a connecting rod linkage structure; after the handle is opened to the maximum (that is, the handle assembly is parallel to the direction of the self-locking assembly), the caliper 21 is opened to the specified angle, and the limiting part 252 of the slider 25 is pushed by the spring 26 to be locked in the locking groove 2110 of the caliper 21, and the guide part 254 pops out, limiting the rotation of the caliper 21 to achieve self-locking, and the limiting device cannot be closed, completing the structural opening. When in the open state, the self-locking power-assisted handle device can drive the drawer to push in or out of the self-locking device. In the open state, the guide portion 254 of the slider 25 and one end of the first clamp arm 211 extend out and exceed the edge of the housing assembly. At this time, the guide portion 254 of the slider 25 and one end of the first clamp arm 211 are engaged with the installation opening 202 of the drawer 200. It can be understood that the direction of the self-locking component is the direction of the line connecting the two large hinged pins, and the direction of the handle component is the length direction of the handle rod.

[0053] When the drawer is pushed into the locking piece, the self-locking power handle device needs to be closed. Figure 1 and Figure 2When the drawer 200 is pushed into the locking member 300, the side wall 301 of the locking member 300 can press the guide portion 254 and cause the guide portion 254 to retract, pushing the slider 25 to move until it is out of the locking groove 2110 of the caliper 21, thereby achieving unlocking. Figures 8 to 11 The handlebar 11 rotates toward the self-locking assembly 20 and pushes the caliper 21 to rotate. The handlebar 11 continues to close until the handlebar 11 pushes the latch 23. The torsion spring 24 pushes the latch 23 back to the original position and tightens the handlebar to prevent the handle device from opening. The handle assembly 10 and the self-locking assembly 20 are re-locked, and the device is closed. At this time, one end of the second clamp arm 212 is engaged with the installation opening 202 of the pull-out component 200 and the locking hole 302 of the locking component 300. The first clamp arm 211 retracts, locking the pull-out component 200 and the self-locking component 300. In the closed state, the caliper outputs a reverse thrust that is connected to the connecting rod to form a special clamping structure. The reverse thrust is converted into a handle tightening force after passing through the connecting rod link structure, making the locking more secure.

[0054] Therefore, the self-locking power-assisting handle device 100 provided by the present invention forms a two-level power-assisting structure through a connecting rod connection, which saves manpower operation. The handle rod and the caliper are restricted by a specific angle of the connecting rod. In the closed state, the caliper outputs a reverse thrust that forms a special clamping structure through the connecting rod connection position, so that the reverse thrust is converted into a handle tightening force after passing through the connecting rod connection structure. After the device is turned on, the slider is locked to form a self-locking structure, which makes the handle rod unable to be closed. The device needs to be pushed into the locking part and the slider is retracted from the unlocked state before the device can be closed. This can prevent the device from being closed before the locking part is pushed in, resulting in the inability to push the component and prevent structural failure. Magnets are added to the handle rod and the upper shell to give the device a better closing effect. The present invention realizes the convenient extraction and installation of the pull-out parts, solves the problem of reverse thrust limitation, and is convenient to operate.

[0055] The above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A self-locking power handle device, characterized in that: The self-locking power-assisting handle device is arranged on the drawer and is used to drive the drawer to push or withdraw the drawer from the locking member for accommodating the drawer; the self-locking power-assisting handle device includes two symmetrically arranged handle mechanisms, the two handle mechanisms are respectively arranged on both sides of the drawer, the handle mechanism includes a handle assembly, a self-locking assembly and a housing assembly, the handle assembly is rotatably connected to the self-locking assembly, the housing assembly is arranged on the self-locking assembly, and the housing assembly is fixed to the drawer; When the self-locking power-assisting handle device needs to be opened, the handle assembly is rotated in a direction away from the self-locking assembly until the handle assembly is parallel to the direction of the self-locking assembly, so that the self-locking power-assisting handle device is in an open state and the handle assembly and the self-locking assembly are automatically locked. The self-locking power-assisting handle device in the open state can drive the drawer to push in or draw out of the self-locking assembly; When the self-locking power-assisted handle device needs to be closed, the handle assembly is rotated in the direction close to the self-locking assembly until the handle assembly is perpendicular to the direction of the self-locking assembly, so that the self-locking power-assisted handle device is in a closed state and the handle assembly and the self-locking assembly are automatically locked. The self-locking power-assisted handle device in the closed state can lock the drawer and the self-locking part.

2. The self-locking power-assisted handle device according to claim 1, wherein: The handle assembly includes a handle rod, a button and a rivet. The handle rod includes an upper surface and a lower surface opposite to the upper surface. The handle rod is provided with a plurality of rivet holes passing through the upper surface and the lower surface. The lower surface is provided with a guide groove. The rivet hole is connected to the guide groove and the rivet hole is located on one side of the guide groove. The button is installed in the guide groove. A plurality of limiting grooves are provided on the side of the button close to the rivet hole. The rivet passes through the rivet hole and is located in the limiting groove.

3. The self-locking power-assist handle device according to claim 2, characterized in that: One end of the handle rod away from the self-locking component extends toward the inside of the handle rod to form a gripping portion. When the self-locking power-assisted handle device is in a closed state, one end of the button exceeds the edge of the gripping portion, and the other end of the button abuts against the self-locking component.

4. The self-locking power-assist handle device according to claim 2, wherein: One end of the handle rod close to the self-locking component extends toward the inner side of the handle rod to form a mounting portion, and the mounting portion is provided with a first fixing hole and a first connecting hole penetrating therethrough, the first fixing hole is used to connect with the shell component after inserting the first rotating connecting member, and the first connecting hole is used to connect with the self-locking component after inserting the second rotating connecting member, and a first receiving groove is provided at the inner edge position of the mounting portion, the first receiving groove is located between the upper surface and the lower surface and the first receiving groove is connected to the first connecting hole, and the first receiving groove is used to receive the self-locking component.

5. The self-locking power-assist handle device according to claim 4, characterized in that: A protrusion is provided at one end of the handle bar close to the mounting portion. The protrusion is protruded on the upper surface and defines a first receiving cavity facing the inner side of the handle bar. A magnet is received in the first receiving cavity.

6. The self-locking power-assist handle device according to claim 1, wherein: The self-locking assembly includes a connecting rod and a caliper, the caliper being used to clamp the draw-out part and the locking part; the caliper includes a first clamp arm and a second clamp arm arranged on the first clamp arm, the first clamp arm including a top surface and a bottom surface opposite to the top surface, one end of the first clamp arm is provided with a second fixing hole and a second connecting hole passing through the top surface and the bottom surface, the second clamp arm is provided with a third fixing hole opposite to the second fixing hole, the second fixing hole and the third fixing hole are used to be inserted into the first rotating connection member and then connected to the housing assembly, the edge position of one end of the first clamp arm is provided with a second receiving groove, the second receiving groove is located between the top surface and the bottom surface and the second receiving groove is communicated with the second connecting hole, the second connecting hole is used to be inserted into the second rotating connection member and then rotatably connected to the connecting rod, one end of the connecting rod is inserted into the second receiving groove, and the other end of the connecting rod is connected to the handle assembly through the second rotating connection member; the handle assembly abuts against the side surface of the first clamp arm.

7. The self-locking power-assist handle device according to claim 6, characterized in that: The self-locking assembly also includes a tongue and a torsion spring. The shell assembly includes a lower shell. The inner surface of the lower shell is provided with a groove for accommodating the tongue. A first hook is provided in the groove. A second hook is protruding from one side of the tongue. One end of the torsion spring is clamped in the first hook, and the other end of the torsion spring is clamped in the second hook. One end of the tongue extends toward the lower shell to form a holding portion, and the holding portion abuts against the handle assembly. When the holding portion is subjected to force, the tongue can rotate in the groove and compress the torsion spring. When the torsion spring is released, it can push the tongue to rotate and reset.

8. The self-locking power-assist handle device according to claim 7, characterized in that: The self-locking assembly also includes a slider and a spring, and the housing assembly includes an upper shell, and the upper shell is connected to the handle assembly and the caliper respectively by penetrating the first rotating connecting member, the inner surface of the upper shell is provided with a recess, and the top surface of the first caliper arm is formed with a locking groove; one end of the slider extends in a direction close to the upper shell to form a rest portion, and the rest portion is clamped in the recess, and one side of the rest portion is provided with a limit portion perpendicular to the rest portion, and the two ends of the spring respectively abut against the upper shell and the limit portion, and the limit portion is clamped in the locking groove, and the slider extends away from the spring in a direction close to the caliper to form a guide portion, and the guide portion abuts against the second caliper arm; when the caliper rotates a preset angle, the spring applies elastic force to push the slider so that the limit portion is clamped in the locking groove and the guide portion pops out to achieve automatic locking, and when the drawer is pushed into the locking member, the guide portion can be retracted, thereby causing the limit portion to disengage from the locking groove to achieve automatic unlocking.

9. The self-locking power-assist handle device according to claim 8, characterized in that: The outer surface of the upper shell is provided with a fixed wall, and the fixed wall is fixedly connected to the drawer through fasteners. The shell assembly also includes a cover plate, and the cover plate is fixedly connected to the upper shell and the lower shell respectively through fasteners.

10. The self-locking power-assist handle device according to claim 8, wherein: A second receiving cavity is formed on a side of the upper shell close to the handle assembly, and a magnet is received in the second receiving cavity.

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