Panel lock

Abstract

A lock device of the panel lock comprises a handle assembly, the handle assembly comprises a handle and a rotating shaft, opposite shaft connecting parts are arranged on the two transverse sides of one end of a pulling plate of the handle, a lock cylinder assembly is installed at the other end of the pulling plate of the handle, and the shaft connecting parts of the handle are connected to the rotating shaft and can operate the rotating shaft to rotate through the handle. A lock hook assembly is installed on the rotating shaft, the handle drives the lock hook assembly through the rotating shaft, an installation base is detachably installed in a handle groove in the panel, an assembly cavity with an opening in the bottom is formed in the installation base, the opening end of the installation base corresponds to a receding hole in the bottom wall of the handle groove, and shaft installation holes are formed in two transverse side wall plates of the assembly cavity. The pull plate of the handle is arranged above the mounting base, the shaft connecting portion corresponds to the shaft mounting hole, the two ends of the rotating shaft penetrate through the shaft mounting hole and are connected to the shaft connecting portion, the lock hook assembly is arranged in the assembling cavity of the mounting base, and the lock catch portion is arranged on the mounting base. Modularized design of the lock device and the panel is achieved, and the lock device has the advantages of being low in development cost and flexible and convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, in particular to a panel lock. Background Art

[0002] The lock device and panel of the existing panel lock are directly associated and installed. The specific structure is that it includes a panel and a lock device installed on the panel. The top of the panel has a recessed handle groove. The lock device includes a handle assembly, a lock hook assembly and a lock core assembly. The handle assembly is placed in the handle groove. One end of the handle of the handle assembly is installed on the panel via a rotating shaft, and the lock core assembly is installed on the other end of the handle. The bottom of the handle groove of the panel is provided with a lock portion that cooperates with the lock core assembly to lock / unlock. The handle groove wall of the panel is provided with an axis mounting hole. The rotating shaft of the handle assembly is installed on the axis mounting hole of the panel. The lock hook assembly is installed on the rotating shaft and driven by the rotating shaft to complete the unlocking action; for example, the "Panel Lock" disclosed in the patent application number 202321283472.3. The axis mounting hole is opened on the panel to provide the rotating shaft installation of the handle assembly. The panel lock must be used together with the panel, which limits the flexible application of the lock and increases the development cost of the lock. In addition, the overall waterproof sealing performance of the lock is insufficient. For example, the avoidance hole on the panel for the lock head of the lock hook assembly to extend out of the handle groove cannot be reliably sealed, thereby limiting the overall sealing and waterproof performance of the lock; the shaft installation hole is opened on the panel, and the sealing treatment here is more difficult. Summary of the invention

[0003] Purpose of the invention: To overcome the defects of the prior art, the present invention provides a modular design, in which the locking device can be used in combination with the panel, or the panel lock can be omitted and installed independently of the panel.

[0004] To achieve the above object, the present invention provides the following technical solutions: A panel lock comprises a panel and a lock device, wherein a handle groove is recessed on the top of the panel, the lock device comprises a handle assembly, a handle locking mechanism and a lock hook assembly, the handle locking mechanism comprises a lock core assembly and a lock buckle portion for locking / unlocking, the handle assembly comprises a handle and a rotating shaft, a pull plate of the handle has shaft connecting portions arranged oppositely on both sides laterally at one end, the pull plate of the handle is installed with the lock core assembly, the shaft connecting portion of the handle is connected to the rotating shaft and can be rotated by operating the rotating shaft through the handle, the lock hook assembly is installed on the rotating shaft, and the handle drives the A lock hook assembly is provided with an avoidance hole on the bottom wall of the handle groove, and is characterized in that: a mounting base is detachably installed in the handle groove of the panel, and an assembly cavity with a bottom opening is provided on the mounting base, and the opening end of the mounting base corresponds to the avoidance hole, and shaft mounting holes are provided on the lateral side wall panels of the assembly cavity of the mounting base, the pull plate of the handle is placed above the mounting base, and the shaft connecting part of the handle corresponds to the position of the shaft mounting hole, and both ends of the rotating shaft pass through the shaft mounting holes and are connected to the shaft connecting part, the lock hook assembly is placed in the assembly cavity of the mounting base, and the locking part is arranged on the mounting base.

[0005] Preferably, the mounting base is in the shape of a cover shell which is arranged at the avoidance hole, and the opening end of the mounting base is provided with a sealing gasket which surrounds the bottom opening of the assembly cavity, and the opening end of the mounting base is sealed with the bottom wall of the handle groove via the sealing gasket.

[0006] Preferably, a bolt connection portion is provided on the mounting base, and connecting bolts are provided on the bolt connection portion, and the mounting base is detachably mounted on the panel via the connecting bolts, and the bolt connection portion is located in an annular space surrounded by the sealing gasket.

[0007] Preferably, the rotating shaft includes an intermediate main shaft and connecting ends fixedly connected to the axial ends of the intermediate main shaft, fixed cross pins are provided at both ends of the intermediate main shaft, and a shaft head insertion hole is provided on the shaft connecting part, the shaft body of the connecting end passes through the shaft head insertion hole of the handle, and the head of the connecting end abuts against the shaft connecting part, and the shaft body of the connecting end is inserted into the end of the intermediate main shaft and fixedly connected to the intermediate main shaft via the fixed cross pins, the connecting end rotates in linkage with the handle, and the sealing member is an O-ring sleeved on the shaft body of the connecting end, and the O-ring is axially elastically pressed against the outer port of the shaft mounting hole to implement sealing.

[0008] Preferably, the outer port of the shaft mounting hole has a stepped flared opening, the O-ring is placed in the stepped flared opening, the handle has a side panel formed with a shaft connecting portion, the shaft connecting portion is concave outward and convex inward along the axial direction of the rotating shaft on the side panel, and the head end of the connecting end is placed in a recess on the outer side of the shaft connecting portion.

[0009] Preferably, an annular sealing gasket is provided on the skirt of the panel, the top surface of the sealing gasket has an embedding groove, and the skirt of the panel is embedded in the embedding groove.

[0010] Preferably, the lock hook assembly comprises a driven lock hook, a driving lock tongue and a lock hook torsion spring, one elastic arm of the lock hook torsion spring is hung on the driven lock hook, and the other elastic arm of the lock hook torsion spring abuts on the mounting base, the driven lock hook is configured to be mounted on the rotating shaft in a manner that it can rotate relative to the rotating shaft, and the driving lock tongue is configured to be mounted on the rotating shaft in a manner that it is linked to the rotating shaft in the circumferential direction, and the driving lock tongue has a toggle portion, and the spring force of the lock hook torsion spring drives the driven lock hook to abut against the toggle portion, and the driving lock tongue is provided with a lock tongue torsion spring, the spring coil of the lock tongue torsion spring is mounted on the rotating shaft, one elastic arm of the lock tongue torsion spring is hung on the driving lock tongue, and the other elastic arm of the lock tongue torsion spring abuts on the mounting base, and a lock tongue limiting wall is provided on the mounting base, and the driving lock tongue is limited by the lock tongue limiting wall relative to the other side of the driven lock hook abutting against the side, and the spring force of the lock tongue torsion spring drives the driving lock tongue to abut against the lock tongue limiting wall.

[0011] Preferably, the lock hook assembly comprises a driven lock hook, a driving lock tongue and a lock hook torsion spring, one elastic arm of the lock hook torsion spring is hung on the driven lock hook, and the other elastic arm of the lock hook torsion spring abuts on the mounting base, the driven lock hook is configured to be mounted on the rotating shaft in a manner that it can rotate relative to the rotating shaft, and the driving lock tongue is configured to be mounted on the rotating shaft in a manner that it is linked to the rotating shaft in the circumferential direction, and the driving lock tongue has a toggle portion, and the spring force of the lock hook torsion spring drives the driven lock hook to abut against the toggle portion, and the driving lock tongue is provided with a lock tongue torsion spring, the spring coil of the lock tongue torsion spring is mounted on the rotating shaft, one elastic arm of the lock tongue torsion spring is hung on the driving lock tongue, and the other elastic arm of the lock tongue torsion spring abuts on the mounting base, and a lock tongue limiting wall is provided on the mounting base, and the driving lock tongue is limited by the lock tongue limiting wall relative to the other side of the driven lock hook abutting against the side, and the spring force of the lock tongue torsion spring drives the driving lock tongue to abut against the lock tongue limiting wall.

[0012] Preferably, the driving lock tongue is a U-shaped member, the driving lock tongue has two hanging arms, and the toggle portion is connected to the two hanging arms.

[0013] Preferably, a lock tongue torsion spring is disposed on each of the two hanging arms of the driving lock tongue, and a side hole extends laterally from the hole on the rotating shaft through which the driving lock tongue is sleeved, and the end of the elastic arm of the lock tongue torsion spring is bent to form a U-shaped hook head, which passes through the side hole to be hung on the hanging arm.

[0014] By adopting the above technical solution, the lock device is equipped with a mounting base, and the lock device and the panel are designed to be modular and separable, so that customers can have more choices. In addition, the panel integrity can be guaranteed by avoiding opening a hole for the shaft installation on the panel. Under the above design, through further adjustment and design, the lock device can be sealed with the door panel when it is installed independently, and the mounting base of the lock device will cover the avoidance hole in a shell shape, solving the problem that the avoidance hole of the traditional panel lock cannot be effectively sealed; when the shaft is configured on the mounting base, the dynamic sealing structure design can be more convenient.

[0015] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the panel lock of the present invention from the bottom perspective; Figure 2 This is a front view of the panel lock of the present invention; Figure 3 for Figure 2 The cross-sectional view taken along line AA; Figure 4 This is a diagram showing the locking device in the panel lock and the panel disassembly state of the present invention; Figure 5 An exploded view of the panel lock of the present invention; Figure 6 The structure of the utility model lock device is shown as follows Figure 1 ; Figure 7 The structure of the utility model lock device is shown as follows Figure 2 ; Figure 8 for Figure 7 Sectional view taken along line BB.

[0017] Panel 1, handle groove 11, avoidance hole 12, skirt 13, sealing gasket 14, embedded groove 141, lock device 2, handle locking mechanism 21, lock core assembly 211, lock buckle part 212, handle 221, pull plate 2211, shaft connecting part 2212, recess 2212a, rotating shaft 222, intermediate main shaft 2221, connecting end 2222, notch-type shaft part 22221, fixed cross pin 2223, O-ring 223, mounting base 23, assembly cavity 230, shaft mounting hole 231, sealing gasket 232, bolt connecting part 233, step expansion 234, shaft auxiliary positioning part 235, lock tongue limiting wall 236, lock hook assembly 24, driven lock hook 241, driving lock tongue 242, toggle part 2421, hanging arm 2422, lock hook torsion spring 243, lock tongue torsion spring 244. DETAILED DESCRIPTION

[0018] See attached Figures 1 to 8A panel lock disclosed in the present invention comprises a panel 1 and a lock device 2. A handle groove 11 is recessed on the top of the panel 1, so that the panel 1 has a box-shaped body corresponding to the handle groove 11 and a skirt 13 on the edge of the box body. The lock device 2 comprises a handle assembly, a handle locking mechanism 21 and a lock hook assembly 24. The handle locking mechanism comprises a lock core assembly 211 and a lock buckle portion 212 for locking / unlocking. The handle assembly comprises a handle 221 and a rotating shaft 222. The pull plate 2211 of the handle 221 is provided with shaft connecting portions 2212 arranged oppositely on both sides of one end. The pull plate 2211 of the handle 221 is installed with the lock core assembly 211 on the other end. The shaft connecting portion 2212 of the handle 221 is connected to the rotating shaft 222 and can be rotated by operating the rotating shaft 222 through the handle 221. The lock hook assembly is installed Installed on the rotating shaft 222, the handle 221 drives the lock hook assembly through the rotating shaft 222, and an avoidance hole 12 is provided on the bottom wall of the handle groove 11. A mounting base 23 is detachably installed in the handle groove 11 of the panel 1, and an assembly cavity 230 with a bottom opening is provided on the mounting base 23. The opening end of the mounting base 230 corresponds to the avoidance hole 12, and shaft mounting holes 231 are provided on the lateral side wall panels of the assembly cavity 230 of the mounting base 23. The pull plate 2211 of the handle 221 is placed above the mounting base 230, and the shaft connecting part 2212 of the handle 221 corresponds to the position of the shaft mounting hole 231. Both ends of the rotating shaft 222 pass through the shaft mounting hole 231 and are connected to the shaft connecting part 2212. The lock hook assembly 24 is placed in the assembly cavity 230 of the mounting base 23, and the locking part 212 is provided on the mounting base 23. The lock device 2 is equipped with a mounting base 23 to form a lock module that can be independent of the panel 1. The mounting base 23 is installed in the handle groove 11 of the panel 1 to realize the traditional panel lock usage. The lock device 2 can also be separated from the panel 1 and directly installed on the door panel using the mounting base 23 for use. This panel lock realizes modular design, reduces development and maintenance costs, realizes two lock usage forms of traditional panel locks, and provides customers with more usage options. The panel 1 and the handle 221 are usually designed with sheet metal parts.

[0019] In order to realize the waterproof sealing design of the lock, the following optimized design is adopted: the mounting base 23 is in the shape of a cover shell which is arranged at the avoidance hole 12, and the opening end of the mounting base 23 is provided with a sealing gasket 232 which surrounds the bottom opening of the assembly cavity (see Figure 3 ,exist Figure 5 (not shown), the open end of the mounting base 23 is sealed with the bottom wall of the handle groove 11 through a sealing gasket 232, and a sealing member is provided on the rotating shaft 222 to seal between the rotating shaft 222 and the shaft mounting hole 231. Not only does the locking device itself achieve sealing when installed and used; at the same time, when used in combination with a panel, the avoidance hole is covered by the mounting base, solving the problem that the avoidance hole on the traditional panel lock cannot be effectively sealed.

[0020] The mounting structure of the mounting base adopts a simple screw locking method. Specifically, the mounting base 23 is provided with a bolt connection part 233, and the bolt connection part 233 is located in the annular space surrounded by the annular sealing ring 232. In this way, the mounting part is also surrounded by the annular sealing ring to achieve waterproof sealing. Of course, under the guidance of the present invention, combined with the prior art, those skilled in the art can also adopt other detachable fixing structure forms, such as buckles, other fasteners, etc.

[0021] As an embodiment of the present invention, the rotating shaft 222 includes an intermediate main shaft 2221 and a connecting end 2222 fixedly connected to the axial ends of the intermediate main shaft 2221. Fixed transverse pins 2223 are provided at both ends of the intermediate main shaft 2221. The fixed transverse pins 2223 are screws to achieve convenient and reliable fixation. The shaft connecting portion 2212 is provided with a shaft head insertion hole. The shaft body of the connecting end 2222 passes through the shaft head insertion hole of the handle 221. The head of the connecting end 2222 abuts against the shaft connecting portion 2212. After the shaft body of the connecting end 2222 is inserted into the end of the intermediate main shaft 2221, it is fixedly connected to the intermediate main shaft 2221 via the fixed transverse pin 2223. On the intermediate main shaft 2221, the connecting end 2222 is rotatably linked with the handle 221, and the shaft head insertion hole is notched. The connecting end 2222 has a notched shaft portion 22221 that matches the shape of the shaft head insertion hole. The notched shaft portion 22221 is inserted into the notched shaft head insertion hole to achieve circumferential linkage. Of course, the shape for achieving circumferential linkage can also be in various forms, such as spline shaft and hole matching, or square hole and square shaft matching; or fasteners are used for fixing, etc. The sealing member is an O-ring 223 sleeved on the shaft body of the connecting end 2222, and the O-ring 223 is axially elastically pressed against the outer port of the shaft mounting hole 231 to implement sealing. The connecting end 2222 presses the O-ring 223 on the outer port of the shaft mounting hole 231, which can achieve reliable waterproof sealing, and the O-ring can provide elasticity to facilitate the connecting end 2222 and the intermediate main shaft 2221 to be plugged into place.

[0022] Furthermore, the outer end of the shaft mounting hole 231 has a stepped flared opening 234, an O-ring is placed in the stepped flared opening 234, the handle 221 has a side plate formed with a shaft connecting portion 2212, the shaft connecting portion 2212 is concave outside and convex inside along the axial direction of the rotating shaft 222 on the side plate, and the head end of the connecting end 2222 is placed in the outer recess 2212a of the shaft connecting portion 2212. In this way, a compact fit is achieved, for example, the shaft connecting portion on the side plate is stably and reliably matched with the inner base, and a large gap is maintained between the main part of the side plate and the inner base to avoid scratches.

[0023] In order to ensure the stable and reliable operation of the rotating shaft, the assembly cavity 230 is provided with shaft auxiliary positioning parts 235 on the axial sides of the two shaft mounting holes 231. The shaft auxiliary positioning parts 235 have U-shaped positioning recesses, and the intermediate main shaft 2221 is supported in the U-shaped positioning recesses. In this way, when installing, the intermediate main shaft can be pre-positioned on the mounting base 23, making assembly more convenient. Figure 5 As shown, both axial ends of the intermediate main shaft 2221 are partially inserted into the corresponding shaft mounting holes 231. When installed in this way, after the locking hook assembly is assembled on the intermediate main shaft 2221, it can be pre-positioned on the inner mounting base, making the assembly more convenient.

[0024] An annular sealing gasket 14 is disposed on the skirt 13 of the panel 1 . In addition, in a further optimized design, a groove 141 is disposed on the top surface of the sealing gasket 14 , and the skirt 13 of the panel 1 is embedded in the groove 141 .

[0025] One embodiment of the present invention, as Figure 1 , Figure 3 and Figures 5 to 7 As shown; the lock hook assembly includes a driven lock hook 241, a driving lock tongue 242 and a lock hook torsion spring 243, one elastic arm of the lock hook torsion spring 243 is hung on the driven lock hook 241, and the other elastic arm of the lock hook torsion spring 243 abuts on the mounting base 23, the driven lock hook 241 is configured to be sleeved on the rotating shaft 222 in a manner that it can rotate relative to the rotating shaft 222, the hanging hole of the driven lock hook 241 is a circular hole, and the circular hole cooperates with the circumferential surface of the rotating shaft 222 to achieve the positioning of the driven lock hook 241 on the rotating shaft 222 and the rotation relative to the rotating shaft, the driving lock tongue 242 is configured to be sleeved on the rotating shaft 222 in a manner that it is linked to the rotating shaft 222 in the circumferential direction, an axial cross section is set on the rotating shaft 222, and the sleeve hole of the driving lock tongue 242 adopts an adaptive shape to match the shaft The cross-sections are matched to achieve rotational linkage. The driving lock tongue 242 has a toggle portion 2421. The spring force of the lock hook torsion spring 243 drives the driven lock hook 241 to abut against the toggle portion 2421. The driving lock tongue 242 is provided with a lock tongue torsion spring 244. The spring coil of the lock tongue torsion spring 244 is sleeved on the rotating shaft 222. An elastic arm of the lock tongue torsion spring 244 is hung on the driving lock tongue 242. The other elastic arm of the lock tongue torsion spring 244 abuts against the mounting base 23. A lock tongue limiting wall 236 is provided on the mounting base 23. The driving lock tongue 242 is stopped and limited by the lock tongue limiting wall 236 relative to the other side of the driven lock hook 241. The spring force of the lock tongue torsion spring 244 drives the driving lock tongue 242 to abut against the lock tongue limiting wall 236. Under this design, the driven lock hook 241 is driven by the driving lock tongue 242 on the rotating shaft 222, and the driving lock tongue 242 is provided with a lock tongue torsion spring 244. When the driven lock hook accidentally shakes or moves, the driving lock tongue is pressed against the lock tongue limiting wall under the force of the lock tongue torsion spring, and will not move with the driven lock hook, thereby avoiding abnormal noise of the handle and realizing a silent design of the lock.

[0026] The driving lock tongue 242 is a U-shaped member, and the driving lock tongue 242 has two hanging arms 2422, and the toggle portion 2421 connects the two hanging arms. The driving lock tongue adopts a U-shaped member, which is not only convenient for installation, but also realizes reliable cooperation with the driven lock hook and positioning cooperation with the mounting base.

[0027] In order to ensure reliable operation of the driving lock tongue and facilitate the installation and arrangement of the lock tongue torsion spring 244, the lock tongue torsion spring 244 is designed as a small torsion spring. A lock tongue torsion spring 244 is arranged on each of the two hanging arms 2422 of the driving lock tongue 242. The driving lock tongue 242 is mounted on a hole on the rotating shaft 222 and has a side hole extending laterally. The end of the elastic arm of the lock tongue torsion spring 244 is bent to form a U-shaped hook head, which passes through the side hole to be hung on the hanging arm 2422.

Claims

1. A panel lock, comprising a panel and a lock device, wherein a handle groove is recessed on the top of the panel, the lock device comprises a handle assembly, a handle locking mechanism and a lock hook assembly, the handle locking mechanism comprises a lock core assembly and a lock buckle portion for locking / unlocking, the handle assembly comprises a handle and a rotating shaft, a pull plate of the handle is provided with shaft connecting portions arranged oppositely on both sides of the pull plate, the other end of the pull plate of the handle is provided with the lock core assembly, the shaft connecting portion of the handle is connected to the rotating shaft and can be rotated by operating the rotating shaft through the handle, the lock hook assembly is installed on the rotating shaft, the handle drives the lock hook assembly through the rotating shaft, and an avoidance hole is provided on the bottom wall of the handle groove, characterized in that: A mounting base is detachably installed in the handle groove of the panel, and an assembly cavity with a bottom opening is provided on the mounting base, and the open end of the mounting base corresponds to the avoidance hole, and shaft mounting holes are provided on the lateral side wall plates of the assembly cavity of the mounting base, and the pull plate of the handle is placed above the mounting base, and the shaft connecting part of the handle corresponds to the position of the shaft mounting hole, and both ends of the rotating shaft pass through the shaft mounting hole and are connected to the shaft connecting part, the locking hook assembly is placed in the assembly cavity of the mounting base, and the locking part is arranged on the mounting base.

2. The panel lock according to claim 1, characterized in that: The mounting base is in the shape of a cover shell that covers the avoidance hole. The opening end of the mounting base is provided with a sealing gasket that surrounds the bottom opening of the assembly cavity. The opening end of the mounting base is sealed with the bottom wall of the handle groove through the sealing gasket.

3. The panel lock according to claim 2, characterized in that: The mounting base is provided with a bolt connection part, and the bolt connection part is provided with a connection bolt. The mounting base is detachably mounted on the panel via the connection bolt. The bolt connection part is located in the annular space surrounded by the sealing gasket.

4. The panel lock according to claim 1, 2 or 3, characterized in that: The rotating shaft includes an intermediate main shaft and connecting ends fixedly connected to the axial ends of the intermediate main shaft, fixed transverse pins are provided at both ends of the intermediate main shaft, and a shaft head insertion hole is provided on the shaft connecting part. The shaft body of the connecting end passes through the shaft head insertion hole of the handle, and the head of the connecting end abuts against the shaft connecting part. After the shaft body of the connecting end is inserted into the end of the intermediate main shaft, it is fixedly connected to the intermediate main shaft via the fixed transverse pins. The connecting end is linked to the rotation of the handle, and the sealing member is an O-ring sleeved on the shaft body of the connecting end, and the O-ring is axially elastically pressed against the outer port of the shaft mounting hole to implement sealing.

5. The panel lock according to claim 4, characterized in that: The outer port of the shaft mounting hole has a stepped flared opening, and the O-ring is placed in the stepped flared opening. The handle has a side plate formed with a shaft connecting part, and the shaft connecting part is concave outward and convex inward along the axial direction of the rotating shaft on the side plate, and the head end of the connecting end is placed in the outer recess of the shaft connecting part.

6. The panel lock according to claim 1, characterized in that: An annular sealing gasket is arranged on the skirt of the panel, the top surface of the sealing gasket is provided with an embedding groove, and the skirt of the panel is embedded in the embedding groove.

7. The panel lock according to claim 1, 2 or 3, characterized in that: The lock hook assembly comprises a driven lock hook, a driving lock tongue and a lock hook torsion spring, one elastic arm of the lock hook torsion spring is hung on the driven lock hook, and the other elastic arm of the lock hook torsion spring abuts on the mounting base, the driven lock hook is configured to be mounted on the rotating shaft in a manner that it can rotate relative to the rotating shaft, and the driving lock tongue is configured to be mounted on the rotating shaft in a manner that it is linked to the rotating shaft in the circumferential direction, the driving lock tongue has a toggle portion, and the spring force of the lock hook torsion spring drives the driven lock hook to abut against the toggle portion, the driving lock tongue is provided with a lock tongue torsion spring, the spring coil of the lock tongue torsion spring is mounted on the rotating shaft, one elastic arm of the lock tongue torsion spring is hung on the driving lock tongue, and the other elastic arm of the lock tongue torsion spring abuts on the mounting base, and a lock tongue limiting wall is provided on the mounting base, the driving lock tongue is stopped and limited by the lock tongue limiting wall relative to the other side of the driven lock hook abutting against the side, and the spring force of the lock tongue torsion spring drives the driving lock tongue to abut against the lock tongue limiting wall.

8. The panel lock according to claim 4, characterized in that: The lock hook assembly comprises a driven lock hook, a driving lock tongue and a lock hook torsion spring, one elastic arm of the lock hook torsion spring is hung on the driven lock hook, and the other elastic arm of the lock hook torsion spring abuts on the mounting base, the driven lock hook is configured to be mounted on the rotating shaft in a manner that it can rotate relative to the rotating shaft, and the driving lock tongue is configured to be mounted on the rotating shaft in a manner that it is linked to the rotating shaft in the circumferential direction, the driving lock tongue has a toggle portion, and the spring force of the lock hook torsion spring drives the driven lock hook to abut against the toggle portion, the driving lock tongue is provided with a lock tongue torsion spring, the spring coil of the lock tongue torsion spring is mounted on the rotating shaft, one elastic arm of the lock tongue torsion spring is hung on the driving lock tongue, and the other elastic arm of the lock tongue torsion spring abuts on the mounting base, and a lock tongue limiting wall is provided on the mounting base, the driving lock tongue is stopped and limited by the lock tongue limiting wall relative to the other side of the driven lock hook abutting against the side, and the spring force of the lock tongue torsion spring drives the driving lock tongue to abut against the lock tongue limiting wall.

9. The panel lock according to claim 7, characterized in that: The driving lock tongue is a U-shaped part, and the driving lock tongue has two hanging arms, and the toggle part is connected to the two hanging arms.

10. The panel lock according to claim 9, characterized in that: A lock tongue torsion spring is arranged on each of the two hanging arms of the driving lock tongue. The hole on which the driving lock tongue is sleeved on the rotating shaft has a side hole extending laterally. The end of the elastic arm of the lock tongue torsion spring is bent to form a U-shaped hook head, and the U-shaped hook head passes through the side hole to be hung on the hanging arm.

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