Self-locking type power-assisted handlebar device

Abstract

The utility model provides a self -locking type power -assisted handle device, two handle mechanisms are arranged at the both sides of the draw piece, and the handle mechanism includes handle assembly, self -locking assembly and shell assembly, handle assembly is rotatably connected with self -locking assembly, handle assembly can rotate the preset angle and makes the device be in the closed state or open state, and handle assembly can be locked with self -locking assembly automatically after rotating the preset angle, self -locking assembly is accommodated in the shell assembly, the mounting wall of draw piece is connected and fixed with shell assembly, the mounting port on the mounting wall is opposite with the lock hole position on the self -locking piece when draw piece is loaded into the self -locking piece, self -locking assembly can extend shell assembly and be clamped into the mounting port and lock hole, and draw piece is locked with self -locking piece. Handle assembly and self -locking assembly can be linked to form two -level power -assisted structure in the utility model, and manpower operation is saved, the state of the device can be switched through rotating handle assembly, and handle assembly and self -locking assembly can be locked automatically, which is beneficial to operation.

Description

[Technical Field]

[0001] This utility model relates to the field of power assist device technology, and in particular to a self-locking power assist handle device. [Background Technology]

[0002] Typically, many fields require power handles to lift and install heavy products. For example, with the widespread adoption of liquid cooling technology, cold plate and immersion liquid-cooled servers have become mainstream. However, the large weight and significant reverse thrust of liquid-cooled chassis can prevent ordinary power handles from locking properly, requiring maintenance personnel to use considerable force to open and close the chassis, which is inconvenient.

[0003] Therefore, it is necessary to provide a new type of self-locking power handle device to overcome the above-mentioned defects. [Utility Model Content]

[0004] The purpose of this invention is to provide a self-locking power-assisted handle device to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides a self-locking power-assisted handle device. The self-locking power-assisted handle device is disposed on a drawer and is used to push the drawer into or pull out a locking member for accommodating the drawer. The self-locking power-assisted handle device includes two symmetrically arranged handle mechanisms, which are respectively disposed on both sides of the drawer. Each 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 handle assembly is used to rotate a preset angle toward or away from the self-locking assembly to put the device in a closed or open state. After rotating the handle assembly by the preset angle, it can automatically lock with the self-locking assembly. The self-locking assembly is housed within the housing assembly.

[0006] The drawer is provided with mounting walls on both sides, and mounting openings are provided on the mounting walls. Locking holes are provided on the side walls of the locking component. The housing assembly is connected and fixed to the mounting walls. When the drawer is inserted into the self-locking component, the mounting openings and locking holes are opposite each other. The handle assembly abuts against the outer edge between the two mounting walls of the drawer. The self-locking component can extend out of the housing assembly and is engaged with the mounting openings and locking holes, so that the drawer and the self-locking component are locked together.

[0007] In a preferred embodiment, the handle assembly includes a handle bar, a button, and rivets. The handle bar includes an upper surface and a lower surface opposite to the upper surface. The handle bar has a plurality of rivet holes penetrating the upper surface and the lower surface. The lower surface has a guide groove. The rivet holes communicate with the guide groove and are located on one side of the guide groove. The button is installed in the guide groove. The side of the button near the rivet holes has a plurality of limiting grooves. The rivets pass through the rivet holes and are located in the limiting grooves.

[0008] In a preferred embodiment, the end of the handle bar away from the self-locking assembly extends inward to form a grip portion. When the self-locking power handle device is in the closed state, one end of the button extends beyond the edge of the grip portion, and the other end of the button abuts against the self-locking assembly.

[0009] In a preferred embodiment, the handle bar extends inward from one end near the self-locking assembly to form a mounting portion. The mounting portion has a through first fixing hole and a first connecting hole. The first fixing hole is used to insert a first rotating connector and connect to the housing assembly. The first connecting hole is used to insert a second rotating connector and connect to the self-locking assembly. A first receiving groove is provided at the inner edge of the mounting portion. The first receiving groove is located between the upper surface and the lower surface and communicates with the first connecting hole. The first receiving groove is used to receive the self-locking assembly.

[0010] In a preferred embodiment, a protrusion is provided at one end of the handle bar near the mounting portion. The protrusion protrudes from the upper surface and has a first receiving cavity facing the inside of the handle bar, wherein a magnet is received.

[0011] In a preferred embodiment, the self-locking assembly includes a connecting rod and a caliper. The caliper is used to clamp the pull-out component and the locking component. The caliper includes a first clamping arm and a second clamping arm disposed on the first clamping arm. The first clamping arm includes a top surface and a bottom surface opposite to the top surface. One end of the first clamping arm has a second fixing hole and a second connecting hole penetrating the top surface and the bottom surface. The second clamping arm has a third fixing hole opposite to the second fixing hole. The second fixing hole and the third fixing hole are used to connect to the housing assembly after inserting a first rotating connector. A second receiving groove is provided at the edge of one end of the first clamping arm. The second receiving groove is located between the top surface and the bottom surface and communicates with the second connecting hole. The second connecting hole is used to rotatably connect to the connecting rod after inserting a second rotating connector. 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 connector. The handle assembly abuts against the side of the first clamping arm.

[0012] In a preferred embodiment, the self-locking assembly further includes a latch and a torsion spring. The housing assembly includes a lower housing, the inner surface of which is provided with a groove for accommodating the latch. A first hook is provided in the groove, and a second hook protrudes from one side of the latch. One end of the torsion spring is engaged in the first hook, and the other end of the torsion spring is engaged in the second hook. One end of the latch extends toward the lower housing to form a holding portion, which abuts against the handle assembly. When the holding portion is subjected to force, the latch can rotate within the groove and compress the torsion spring. When the torsion spring is released, it can push the latch to rotate and reset.

[0013] In a preferred embodiment, the self-locking assembly further includes a slider and a spring. The housing assembly includes an upper shell, which is connected to the handle assembly and the caliper respectively via a first rotating connector. 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 towards the upper shell to form a stop portion, which is engaged in the recess. A limiting portion perpendicular to the stop portion is provided on one side of the stop portion. Both ends of the spring abut against the upper shell and the limiting portion respectively, and the limiting portion is engaged in the locking groove. The end of the slider away from the spring extends towards the caliper to form a guide portion, which abuts against the second caliper arm. When the caliper rotates at a preset angle, the spring applies a force to push the slider so that the limiting portion is engaged in the locking groove while the guide portion pops out, thus achieving automatic locking. When the pull-out component is pushed into the locking component, the guide portion retracts, thereby causing the limiting portion to disengage from the locking groove, thus achieving automatic unlocking.

[0014] In a preferred embodiment, the outer surface of the upper shell is provided with a fixed wall, which is fixedly connected to the pull-out component by fasteners. The shell assembly also includes a cover plate, which is fixedly connected to the upper shell and the lower shell by fasteners respectively.

[0015] In a preferred embodiment, the upper shell has a second receiving cavity on the side near the handle assembly, and the second receiving cavity contains a magnet.

[0016] Compared to existing technologies, the self-locking power handle device provided by this utility model has two handle mechanisms respectively disposed on both sides of the drawer. Each 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 handle assembly can rotate a preset angle towards or away from the self-locking assembly to put the device in a closed or open state. After rotating the handle assembly by the preset angle, it can automatically lock with the self-locking assembly. The self-locking assembly is housed within the housing assembly. Mounting walls are provided on both sides of the drawer, and mounting openings are provided on the mounting walls. Locking attachments are provided on the side walls of the locking component. The housing assembly is connected and fixed to the mounting wall. When the pull-out component is inserted into the self-locking component, the mounting opening and the locking hole are positioned opposite each other. The handle assembly abuts against the outer edge between the two mounting walls of the pull-out component. The self-locking component can extend out of the housing assembly and engage with the mounting opening and the locking hole, thus locking the pull-out component and the self-locking component. In this utility model, the handle assembly and the self-locking component can be linked to form a two-stage assist structure, saving manual operation. The state of the device can be switched by rotating the handle assembly. In both the open and closed states, the handle assembly and the self-locking component can automatically lock without being affected by the counter-thrust, avoiding structural failure and facilitating operation. [Attached Image Description]

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 The structural diagram of the self-locking power handle device provided by this utility model when the pull-out part is pushed into the locking part.

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0020] Figure 3 This is a structural diagram of the handle mechanism in the self-locking power handle device provided by this utility model.

[0021] Figure 4 An exploded view of the handle mechanism in the self-locking power handle device provided by this utility model.

[0022] Figure 5 This is another exploded structural diagram of the handle mechanism in the self-locking power handle device provided by this utility model.

[0023] Figure 6 This is a structural diagram of the self-locking component in the self-locking power handle device provided by this utility model.

[0024] Figure 7 An exploded view of the self-locking component in the self-locking power handle device provided by this utility model.

[0025] Figure 8 This is a schematic diagram of the self-locking power handle device provided by this utility model during the closing process.

[0026] Figure 9 for Figure 8 Enlarged view of point B in the middle.

[0027] Figure 10 This is a schematic diagram of the closed state of the self-locking power handle device provided by this utility model.

[0028] Figure 11 for Figure 10 A magnified view of point C in the middle.

[0029] Explanation of reference numerals in the attached drawings: 100-Self-locking power handle device, 101-Handle mechanism, 102-First rotating connector, 103-Second rotating connector, 200-Draw-out component, 201-Mounting wall, 202-Mounting port, 203-Outer edge, 300-Self-locking component, 301-Side wall, 302-Locking hole;

[0030] 10-Handle assembly, 11-Handle bar, 110-Magnet, 111-Upper surface, 112-Lower surface, 113-Rivet hole, 114-Guide groove, 115-Grip part, 116-Mounting part, 1161-First fixing hole, 1162-First connecting hole, 1163-First receiving groove, 117-Protrusion, 118-First receiving cavity; 12-Button, 121-Limiting groove; 13-Rivet;

[0031] 20-Self-locking assembly, 21-Caliber, 211-First clamp arm, 2110-Caliber slot, 2111-Top surface, 2112-Bottom surface, 2113-Second fixing hole, 2114-Second connecting hole, 2115-Second receiving slot, 212-Second clamp arm, 2121-Third fixing hole, 22-Connecting rod, 23-Latch tongue, 231-Second catch hook, 232-Clamping part, 233-Clamping shaft, 24-Torsion spring, 25-Slider, 251-Abutting part, 252-Limiting part, 253-Mounting shaft, 254-Guide part, 26-Spring;

[0032] 30-Housing assembly, 31-Lower housing, 311-Groove, 312-First hook, 32-Upper housing, 321-Recess, 322-Fixing wall, 323-Second receiving cavity, 33-Cover plate, 331-Fastener.

Detailed Implementation Methods

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] Please see Figure 1 This diagram illustrates the structure of the self-locking power-assisted handle device 100 provided by this invention, where the pull-out component 200 is pushed into the locking component 300. The self-locking power-assisted handle device 100 provided by this invention allows the handle assembly and the self-locking component to be linked to form a two-stage power-assisted structure, saving manual operation. The device's state can be switched by rotating the handle assembly, and both the handle assembly and the self-locking component automatically lock in both the open and closed states, unaffected by counter-pushing forces, preventing structural failure and facilitating operation.

[0035] Please refer to the following: Figure 2 A self-locking assisted handle device 100 is mounted on the drawer 200 and is used to push or pull the drawer 200 into or out of the locking member 300 that accommodates the drawer 200. Specifically, the drawer 200 has a plate-like structure, with mounting walls 201 on both sides. Mounting openings 202 are provided on the mounting walls 201, and locking holes 302 are provided on the side walls 301 of the locking member 300. The self-locking assisted 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 openings 202 and locking holes 302 are aligned. The self-locking component 20 of the self-locking assisted handle device 100 can extend out of the housing assembly 10 and engage with the mounting openings 202 and locking holes 302, thus locking the drawer 200 and the self-locking member 300 together. The drawer 200 can specifically be a cold plate server.

[0036] The self-locking power-assisted handle device 100 includes two symmetrically arranged handle mechanisms 101, which are respectively located on both sides of the drawer 200, typically the left and right sides. That is, the two handle mechanisms are the left handle mechanism and the right handle mechanism, forming a symmetrical structure. The structure of the handle mechanism will be described in detail below. Figures 3-7 The structures shown are all right-hand handle mechanisms. Understandably, the left-hand handle structure is completely symmetrical to the right-hand handle structure, which will not be described again in this application.

[0037] Please see Figure 3 The handle mechanism 101 includes a handle assembly 10, a self-locking assembly 20, and a housing assembly 30. The handle assembly 10 is rotatably connected to the self-locking assembly 20, and the housing assembly 30 is disposed on the self-locking assembly 20 and fixed to the pull-out member 200. The handle assembly 10 is used to rotate a preset angle toward or away from the self-locking assembly 20 to put the device in a closed or open state. After rotating the handle assembly 10 by the preset angle, it can automatically lock with the self-locking assembly 20. The self-locking assembly 20 is housed within the housing assembly.

[0038] Specifically, when it is necessary to open the self-locking power handle device 100, the handle assembly 10 rotates away from the self-locking assembly 20 (i.e., the handle assembly rotates outward) until the handle assembly 10 and the self-locking assembly 20 are parallel (i.e., rotate by a preset angle, specifically 90 degrees), so that the self-locking power handle device 100 is in the open state and the handle assembly 10 and the self-locking assembly 20 are automatically locked. The self-locking power handle device 100 in the open state can drive the pull-out component 200 to push in or pull out the self-locking component 300.

[0039] When it is necessary to close the self-locking power assist handle device 100, the handle assembly 10 rotates towards the self-locking assembly 20 (i.e., the handle assembly rotates inward) until the direction of the handle assembly 10 is perpendicular to that of the self-locking assembly 20 (i.e., rotates by a preset angle, specifically 90 degrees), so that the self-locking power assist handle device 100 is in the 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 pull-out component 200 and the self-locking component 300.

[0040] Understandably, in practical applications, the initial state of the self-locking power handle device 100 is the closed state, that is, the handle assembly 10 is perpendicular to the direction of the self-locking assembly 20, the handle assembly 10 abuts against the outer edge 203 between the two mounting walls 201 of the pull-out member 200, and the direction of the handle assembly 10 is parallel to the outer edge 203, which can reduce the space occupied.

[0041] When it is necessary to move the pull-out component 200, the self-locking assist handle device 100 needs to be opened. The handle assembly 10 is rotated away from the self-locking component 20 until the handle assembly 10 and the self-locking component 20 are parallel. At this time, the direction of the handle assembly 10 is perpendicular to the outer edge 203. After the self-locking assist handle device 100 is opened, the handle assembly 10 and the self-locking component 20 are automatically locked, which can ensure that the device is in the open state and cannot be closed during the pushing or pulling process, making it convenient to push or pull out the self-locking component.

[0042] When the pull-out component 200 is fully pushed into the self-locking component 300, the handle assembly 10 and the self-locking component 20 can be automatically unlocked. At this time, the self-locking power handle device 100 needs to be turned off. Rotate the handle assembly 10 towards the self-locking component 20 until the direction of the handle assembly 10 and the self-locking component 20 is perpendicular. The handle assembly 10 then abuts against the outer edge 203 again, and the handle assembly 10 and the self-locking component 20 automatically lock together again. The self-locking power handle device 100 in the closed state can lock the pull-out component 200 and the self-locking component 300.

[0043] Therefore, the self-locking power handle device 100 provided by this utility model has two handle mechanisms 101 respectively disposed on both sides of the drawer 200. Each handle mechanism 101 includes a handle assembly 10, a self-locking assembly 20, and a housing assembly 30. The handle assembly 10 is rotatably connected to the self-locking assembly 20. The handle assembly 10 can rotate a preset angle toward or away from the self-locking assembly to put the device in a closed or open state. After rotating the handle assembly 10 by the preset angle, it can automatically lock with the self-locking assembly 20. The self-locking assembly 20 is housed in the housing assembly 30. Mounting walls 201 are provided on both sides of the drawer 200, and mounting openings 202 are provided on the mounting walls 201. Locking holes 30 are provided on the side walls of the locking member 300. 1. The housing assembly 30 is connected and fixed to the mounting wall 301. When the pull-out component 200 is inserted into the self-locking component 300, the mounting port 202 and the locking hole 302 are opposite to each other. The handle assembly 10 abuts against the outer edge 203 between the two mounting walls 201 of the pull-out component 200. The self-locking component 20 can extend out of the housing assembly 10 and is engaged with the mounting port 202 and the locking hole 302, so that the pull-out component 200 and the self-locking component 300 are locked. In this utility model, the handle assembly and the self-locking component can be linked to form a two-stage assist structure, saving manual operation. The state of the device can be switched by rotating the handle assembly. In the open and closed states of the device, the handle assembly and the self-locking component can be automatically locked without being affected by the counter-thrust, avoiding structural failure and facilitating operation.

[0044] Please see Figures 4 to 7The handle assembly 10 includes a handle bar 11, a button 12, and rivets 13. The handle bar 11 includes an upper surface 111 and a lower surface 112 opposite to the upper surface 111. The handle bar 11 has a plurality of rivet holes 113 penetrating the upper surface 111 and the lower surface 112. The lower surface 112 has a guide groove 114, which is opened along the direction of the handle bar 11 (i.e., the length direction of the handle bar 11). The rivet holes 113 communicate with the guide groove 114 and are 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 its position. The side of the button 12 near the rivet holes 113 has a plurality of limiting grooves 121. The rivets 13 pass through the rivet holes 113 and are located in the limiting grooves 121, which can limit the button 12.

[0045] One end of the handle 11 away from the self-locking assembly 20 extends inward to form a grip portion 115. When the self-locking power handle device 100 is in the closed state, one end of the button 12 extends beyond the edge of the grip portion 115, and the other end of the button 12 abuts against the self-locking assembly 20, so that when it is necessary to open the device, one end of the button 12 can be pressed and the other end of the button can push the self-locking assembly 20.

[0046] One end of the handle 11 near the self-locking assembly 20 extends inward to form a mounting portion 116. The mounting portion 116 has a through first fixing hole 1161 and a first connecting hole 1162. The first fixing hole 1161 is used to insert a first rotating connector 102 and connect it to the housing assembly 30. The first connecting hole 1162 is used to insert a second rotating connector 103 and connect it 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 communicates with 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 pin, and the second rotating connector 103 is a small-flange pin.

[0047] A protrusion 117 is provided at one end of the handle 11 near the mounting part 116. The protrusion 117 protrudes from the upper surface 111. The protrusion 117 has a first receiving cavity 118 facing the inside of the handle 11. A magnet 110 is received in the first receiving cavity 118. Inserting the magnet can attract it to the self-locking component 20, achieving a more stable closed state and a more reliable lock.

[0048] The self-locking assembly 20 includes a clamp 21 and a connecting rod 22. The clamp 21 is used to clamp the pull-out component 200 and the locking component 300. The clamp 21 includes a first clamp arm 211 and a second clamp arm 212 disposed on the first clamp arm 211. The first clamp arm 211 includes a top surface 2111 and a bottom surface 2112 opposite to the top surface 2111. One end of the first clamp arm 211 has a second fixing hole 2113 and a second connecting hole 2114 penetrating the top surface 2111 and the bottom surface 2112. The second clamp arm 212 has 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 a first rotating connecting rod. After the connector 102 is connected to the housing assembly 30, a second receiving groove 2115 is provided at the edge of one end of the first clamp arm 211. The second receiving groove 2115 is located between the top surface 2111 and the bottom surface 2112 and communicates with the second connecting hole 2114. The second connecting hole 2114 is used to insert the second rotating connector 103 and rotatably connect it 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 connector 103.

[0049] Specifically, both ends of the connecting rod 22 have through holes, and small flip-out pins are inserted into both ends of the connecting rod 22 to connect the mounting part 116 of the handle 11 and the first clamp arm 211 of the caliper 21, respectively. This allows the handle and the caliper to be linked together to form a linkage mechanism, creating a two-stage power assist structure and saving manual operation. After inserting large flip-out pins into the second fixing hole 2113 and the third fixing hole 2121, the caliper 21 can be connected to the cover plate assembly 30.

[0050] The handle assembly 10 abuts against the side of the first clamp arm 211. Specifically, the side of the first clamp arm 211 near the handle assembly 10 is arc-shaped, and the mounting part 116 of the handle lever 11 abuts against the arc-shaped side. When the handle lever 11 rotates, it can push the caliper 21 to rotate. The ends of the two clamp arms away from the handle assembly can form two opposing clamping parts for locking onto the pull-out part 200 and the self-locking part 300.

[0051] The self-locking assembly 20 also includes a latch 23 and a torsion spring 24. The housing assembly 30 includes a lower housing 31 and an upper housing 32. The inner surface of the lower housing 31 (i.e., the surface near the self-locking assembly) is provided with a groove 311 for accommodating the latch 23. A first hook 312 is provided in the groove 311. A second hook 231 protrudes from one side of the latch 23. The second hook 231 can restrict the torsion spring and apply the spring force to the latch, causing it to rebound. One end of the torsion spring 24 is engaged in the first hook 312, and the other end of the torsion spring 24 is engaged in the second hook 231. One end of the latch 23 extends towards the lower housing 31 to form a holding part 232. The holding part 232 is hook-shaped. After the device is closed, the holding part 232 can hook into the handle to restrict the device from opening. The retaining part 232 abuts against the handle assembly 10. When the retaining part 232 is subjected to force, the latch 23 can rotate within the groove 311 and compress the torsion spring 24. When the torsion spring 24 is released, it can push the latch 23 to rotate and reset.

[0052] Specifically, one end of button 12 abuts against the retaining part 232 of latch 23. When the device needs to be opened, pressing button 12 can push latch 23 to rotate, disengage from handle 11, and unlock the device. When the device needs to be closed, handle 11 is rotated until it abuts against latch 23 again. Torsion spring 24 pushes latch 23 to reset and tighten handle 11 to restrict the opening of the device, thus achieving automatic locking of the device.

[0053] The end of the latch 23 away from the latching part 232 is provided with a protruding latch shaft 233. The latch shaft 233 is used to insert into the housing assembly 30 and then connect to the housing assembly 30. The latch shaft 233 can cooperate with the upper housing mounting hole and the lower housing mounting hole to restrict the position and rotation of the latch.

[0054] 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 inserting the first rotating connector 102. The inner surface of the upper shell 32 (the surface near the self-locking assembly) is provided with a recess 321. The top surface of the first caliper arm 211 is formed with a locking groove 2110. The locking groove 2110 can be formed by the structure of the first caliper arm and the second caliper arm.

[0055] One end of the slider 25 extends towards the upper shell 32 to form a stop portion 251, which is engaged within the recess 321. A limiting portion 252 perpendicular to the stop portion 251 is provided on one side of the stop portion 251. Both ends of the spring 26 abut against the upper shell 32 and the limiting portion 252, respectively. Specifically, the limiting portion 252 has a mounting shaft 253, and the spring 26 is fitted onto the mounting shaft 253 to limit the spring's position and prevent it from slipping and failing. The limiting portion 252 is engaged within the locking groove 2110. The end of the slider 25 away from the spring 26 extends towards the caliper 21 to form a guide portion 254, which abuts against 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 into the locking groove 2110, and the guide part 254 pops out to achieve automatic locking. When the pull-out part is pushed into the locking part 300, the guide part 254 can be retracted, thereby causing the limiting part 252 to disengage from the locking groove 2110 to achieve automatic unlocking.

[0056] The housing assembly 30 also includes a cover plate 33, which is fixedly connected to the upper housing 32 and the lower housing 31 respectively by fasteners 331. The cover plate 33 is located on the side of the upper and lower housings away from the handle assembly, which can protect the internal components and not interfere with the movement of the components. The fasteners 331 are screws, which can realize the fixed connection of the components.

[0057] The outer surface of the upper shell 32 is provided with a fixing wall 322, which is fixedly connected to the drawer 200 by a fastener 331. Specifically, the fixing wall 322 is fixed to the mounting wall 201 of the drawer 200, thereby fixing the handle mechanism 101 to the drawer. A second receiving cavity 323 is provided on the side of the upper shell 32 near the handle assembly 10. A magnet 110 is housed in the second receiving cavity 323. Inserting the magnet allows it to engage with the handle assembly 10, achieving a more stable closed state and a more secure lock. The magnet increases the magnetic attraction force, ensuring the handle assembly reaches a certain position and is magnetically attracted to the upper shell, thus enhancing the usability of the handle device.

[0058] The self-locking power handle device 100 provided by this utility model includes the following components during installation:

[0059] (1) Button 12 is inserted into guide groove 114 of handle bar 11, rivet 13 is inserted into rivet hole 113 and limiting groove 121 to restrict the movement of button 12, magnet 110 is inserted into receiving cavity 118 of handle bar 11, one end of connecting rod 22 is placed in first receiving groove 1163 of handle bar 11, the other end of connecting rod 22 is placed in second receiving groove 2115 of caliper 21, and a small flip-out shaft pin is inserted in first connecting hole 1162 and a small flip-out shaft pin is inserted in second connecting hole 2114. The flip-out is tightened to realize the connection between handle bar 11 and caliper 21 through connecting rod 22 to form a two-stage linkage structure.

[0060] (2) Place the latch 23 in the groove 311 of the lower shell 31, insert the locking shaft 233 into the mounting hole of the lower shell 31, insert the short arm of the torsion spring 24 into the first hook 312 of the lower shell 31, and the long arm is locked in the second hook 231 of the latch 23. The elastic force of the torsion spring 24 is applied to the latch 23.

[0061] (3) The two large-diameter hinge pins are installed into the upper shell 32. The components of step (1) are installed into the upper shell 32. Specifically, the large-diameter hinge pins are inserted into the first fixing hole 1161 of the handle 11, and the large-diameter hinge pins are 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. The abutting part 251 of the slider 25 is placed in the recess 321 of the upper shell 32. The limiting part 252 is locked in the locking groove 2110 on the first clamp arm 211. The guide part 254 abuts against the second clamp arm 212 to complete the slider installation.

[0062] (4) Install the assembly from step (2) onto the assembly from step (3), fasten the upper shell 32 and the lower shell 31 with fasteners 331, fasten the upper and lower shells with large-diameter pivot pins, insert the cover plate 33 into the reserved holes in the upper and lower shells, insert the fasteners 331 into the cover plate 33, and complete the device assembly.

[0063] In practical application, when it is necessary to open the self-locking power handle device, pressing button 22 pushes the latch 23 to rotate, disengaging it from the handle rod 11, thus unlocking the handle assembly 10 and the self-locking assembly 20. The handle rod 11 rotates away from the self-locking assembly 20, driving the connecting rod 22, which in turn drives the caliper 21, forming a linkage structure. After the handle is fully opened (i.e., the handle assembly is parallel to the direction of the self-locking assembly), the caliper 21 opens to a specified angle. The limiting part 252 of the slider 25 is pushed by the spring 26 and engages in the locking groove 2110 of the caliper 21, while the guide part 254 pops out, restricting the rotation of the caliper 21 to achieve self-locking. The limiting device cannot be closed, thus completing the opening of the structure. The self-locking power handle device in the open state can push the pull-out component into or out of the self-locking component. In the open state, the guide portion 254 of the slider 25 and one end of the first clamping arm 211 both extend beyond the edge of the housing assembly. At this time, the guide portion 254 of the slider 25 and one end of the first clamping arm 211 are engaged in the mounting port 202 of the pull-out component 200. It can be understood that the direction of the self-locking component is the direction of the line connecting the two large flip-out shaft pins, and the direction of the handle assembly is the length direction of the handle bar.

[0064] After the pull-out component is pushed into the locking mechanism, the self-locking power handle device needs to be closed. Please refer again. Figure 1 and Figure 2 During the process of pushing the pull-out component 200 into the locking component 300, the side wall 301 of the locking component 300 can press against the guide portion 254 and cause the guide portion 254 to retract, pushing the slider 25 to move until it disengages from the locking groove 2110 of the caliper 21, thereby unlocking. Please refer to Figures 8 to 11 Rotate the handle lever 11 towards the self-locking assembly 20 and push the caliper 21 to rotate. Continue closing the handle lever 11 until it pushes the latch 23. The torsion spring 24 pushes the latch 23 to reset and tighten the handle lever, preventing the handle device from opening. The handle assembly 10 and the self-locking assembly 20 are relocked, and the device is closed. At this time, one end of the second clamp arm 212 engages with the mounting port 202 of the pull-out component 200 and the locking hole 302 of the locking accessory 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 counter-thrust force that forms a special locking structure through the linkage connection position, converting the counter-thrust force into a handle fastening force after passing through the linkage connection structure, making the locking more reliable.

[0065] Therefore, the self-locking power-assisted handle device 100 provided by this utility model forms a two-stage power-assisted structure through a connecting rod, saving manual operation. The handle and caliper are limited by a specific angle through the connecting rod. In the closed state, the caliper outputs a counter-thrust force that forms a special locking structure through the connecting rod, converting the counter-thrust force into a handle fastening force. When the device is opened, the slider engages to form a self-locking structure, preventing the handle from closing. The device must be pushed into the locking mechanism to allow the slider to retract and disengage from the unlocked state before the device can be closed. This prevents the device from closing before the locking mechanism is engaged, thus preventing structural failure. Magnets are added to the handle and upper shell to improve the closing effect. This utility model facilitates the removal and insertion of the pull-out component, solves the problem of counter-thrust force limitation, and simplifies operation.

[0066] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A self-locking type power assist handle device characterized by, The self-locking power handle device is mounted on the drawer and is used to push the drawer into or out of the locking member that accommodates the drawer. The self-locking power handle device includes two symmetrically arranged handle mechanisms, which are respectively located on both sides of the drawer. Each 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 handle assembly is used to rotate a preset angle toward or away from the self-locking assembly to put the device in a closed or open state. After rotating the handle assembly by the preset angle, it can automatically lock with the self-locking assembly. The self-locking assembly is housed within the housing assembly. The drawer is provided with mounting walls on both sides, and mounting openings are provided on the mounting walls. Locking holes are provided on the side walls of the locking component. The housing assembly is connected and fixed to the mounting walls. When the drawer is inserted into the self-locking component, the mounting openings and locking holes are opposite each other. The handle assembly abuts against the outer edge between the two mounting walls of the drawer. The self-locking component can extend out of the housing assembly and is engaged with the mounting openings and locking holes, so that the drawer and the self-locking component are locked together.

2. The self-locking type power assist handle device according to claim 1, wherein The handle assembly includes a handle bar, a button, and rivets. The handle bar includes an upper surface and a lower surface opposite to the upper surface. The handle bar has a plurality of rivet holes penetrating the upper surface and the lower surface. The lower surface has a guide groove. The rivet holes communicate with the guide groove and are located on one side of the guide groove. The button is installed in the guide groove. The side of the button near the rivet holes has a plurality of limiting grooves. The rivets pass through the rivet holes and are located in the limiting grooves.

3. The self-locking type power assist handle apparatus according to claim 2, characterized by The end of the handle bar away from the self-locking component extends inward to form a grip portion. When the self-locking power handle device is in the closed state, one end of the button extends beyond the edge of the grip portion, and the other end of the button abuts against the self-locking component.

4. The self-locking type power assist handle apparatus according to claim 2, wherein The handle bar extends inward from one end near the self-locking component to form a mounting portion. The mounting portion has a through first fixing hole and a first connecting hole. The first fixing hole is used to insert a first rotating connector and connect to the housing component. The first connecting hole is used to insert a second rotating connector and connect to the self-locking component. A first receiving groove is provided at the inner edge of the mounting portion. The first receiving groove is located between the upper surface and the lower surface and communicates with the first connecting hole. The first receiving groove is used to receive the self-locking component.

5. The self-locking type power assist handle apparatus according to claim 4, characterized by A protrusion is provided at one end of the handle bar near the mounting part. The protrusion protrudes from the upper surface and has a first receiving cavity facing the inside of the handle bar. A magnet is received in the first receiving cavity.

6. The self-locking type power assist handle apparatus according to claim 1, wherein The self-locking assembly includes a connecting rod and a caliper. The caliper is used to clamp the pull-out component and the locking component. The caliper includes a first clamp arm and a second clamp arm disposed on the first clamp arm. The first clamp arm includes a top surface and a bottom surface opposite to the top surface. One end of the first clamp arm has a second fixing hole and a second connecting hole penetrating the top surface and the bottom surface. The second clamp arm has a third fixing hole opposite to the second fixing hole. The second fixing hole and the third fixing hole are used to connect to the housing assembly after inserting a first rotating connector. A second receiving groove is provided at the edge of one end of the first clamp arm. The second receiving groove is located between the top surface and the bottom surface and communicates with the second connecting hole. The second connecting hole is used to rotatably connect to the connecting rod after inserting a second rotating connector. 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 connector. The handle assembly abuts against the side of the first clamp arm.

7. The self-locking type power assist handle apparatus according to claim 6, characterized by The self-locking assembly further includes a latch and a torsion spring. The housing assembly includes a lower housing. The inner surface of the lower housing is provided with a groove for accommodating the latch. A first hook is provided in the groove. A second hook protrudes from one side of the latch. One end of the torsion spring is engaged in the first hook, and the other end of the torsion spring is engaged in the second hook. One end of the latch extends towards the lower housing to form a holding part, which abuts against the handle assembly. When the holding part is subjected to force, the latch can rotate within the groove and compress the torsion spring. When the torsion spring is released, it can push the latch to rotate and reset.

8. The self-locking type power assist handle apparatus according to claim 7, characterized by The self-locking assembly further includes a slider and a spring. The housing assembly includes an upper shell, which is connected to the handle assembly and the caliper respectively via a first rotating connector. 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 towards the upper shell to form a stop portion, which is engaged in the recess. A limiting portion perpendicular to the stop portion is provided on one side of the stop portion. Both ends of the spring abut against the upper shell and the limiting portion respectively, and the limiting portion is engaged in the locking groove. The end of the slider away from the spring extends towards the caliper to form a guide portion, which abuts against the second caliper arm. When the caliper rotates at a preset angle, the spring applies elastic force to push the slider so that the limiting portion is engaged in the locking groove, and the guide portion pops out to achieve automatic locking. When the pull-out component is pushed into the locking component, the guide portion retracts, thereby causing the limiting portion to disengage from the locking groove to achieve automatic unlocking.

9. The self-locking type power assist handle apparatus according to claim 8, characterized by The outer surface of the upper shell is provided with a fixed wall, which is fixedly connected to the pull-out component by fasteners. The shell assembly also includes a cover plate, which is fixedly connected to the upper shell and the lower shell by fasteners respectively.

10. The self-locking type power assist handle apparatus according to claim 8, wherein The upper shell has a second receiving cavity on the side near the handle assembly, and the second receiving cavity contains a magnet.

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