Case panel locking device

Abstract

The utility model relates to the technical field of locks, in particular to a case panel locking device which comprises a shell, a spring bolt, a handle assembly and a buckling assembly, a first opening is formed in one end of the bottom of the shell, the shell penetrates through the shell in a sliding mode, one end of the spring bolt stretches out of or retracts into the shell through the first opening, and a rotating handle and a rotating support are included. One end of the rotating handle is rotationally connected with the spring bolt to form a sliding connecting end, the other end of the rotating handle rotates freely to form a free end, one end of the rotating support is rotationally connected with the shell to form a fixed connecting end, and the other end of the rotating support is hinged to the middle of the rotating handle to form a movable connecting end. The movable connecting end is located between the sliding connecting end and the fixed connecting end. According to the case panel locking device, the rotating support is arranged and connected with the rotating handle to form a rowing assisting structure, locking and unlocking are smoother and more labor-saving, two stress acting points are provided, large push-pull force can be borne, the structure is simple, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a chassis panel locking device. Background Art

[0002] Existing upper cover panel locks are divided into two levels: one has complete functions but complex structure, is laborious to use, difficult to process and maintain, and has high cost; the other has simple structure and low cost, but has incomplete functions, insufficient reliability, and a weak opening and closing structure that cannot withstand large opening and closing panel push and pull forces, making it difficult to use.

[0003] The Chinese patent with publication number CN201910789476.0 discloses a lock for a box-type distribution cabinet, including a fixed plate and a shell installed inside and outside the cabinet door, and also including a lock core assembly, a cover plate is arranged on the outer surface of the shell, a lock hook is arranged on the inner wall of the cover plate, the lock core assembly includes a lock core, a lock rod, a lock tongue, a lock frame and an elastic driving member, a keyhole is provided at the free end of the outer side of the lock core, a toggle bar is arranged at the inner end of the lock core, the lock head of the lock tongue is connected with the lock hook and the lock rod hook, the toggle bar presses down the pressure rod at the rear end of the lock rod, the elastic driving member is connected below the pressure rod, the lock tongue and the lock rod are rotatably connected with the lock frame through a first cotter pin, a handle is arranged inside the shell, the handle is connected to the rotating assembly, the end of the rotating assembly is connected to the bolt, the lock core assembly is driven to move to open the cover plate by rotating the key, the handle is pulled out to rotate and drive the lock bolt to complete the unlocking, the handle is stored in the pull hole, and the cover plate is closed and clamped to complete the locking. The lock structure for the box-type distribution cabinet is reasonably arranged, suitable for mechanical and electronic unlocking, and has high safety. The above locks are complex in structure, bulky in size and have high maintenance costs. Summary of the invention

[0004] The purpose of the utility model is to provide a chassis panel locking device, which forms a rowing assist structure by arranging a rotating bracket and connecting it with a rotating handle. The locking and unlocking are smoother and more labor-saving. It has two force application points and can withstand larger push and pull forces. It also has a simple structure and low cost.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A chassis panel locking device, comprising:

[0007] A shell, wherein a first opening is provided at one end of the bottom of the shell;

[0008] A lock tongue is slidably disposed in the housing, and one end of the lock tongue extends out of or retracts into the housing through the first opening;

[0009] The handle assembly includes a rotating handle and a rotating bracket, one end of the rotating handle is rotatably connected to the lock tongue to form a sliding connection end, and the other end of the rotating handle is freely rotatable and is called a free end, one end of the rotating bracket is rotatably connected to the shell to form a fixed connection end, and the other end of the rotating bracket is hinged to the middle part of the rotating handle to form a movable connection end, and the movable connection end is located between the sliding connection end and the fixed connection end;

[0010] A buckle assembly, used to buckle or release the rotating handle;

[0011] When locking, the free end of the rotating handle rotates toward the fixed connection end, the movable connection end moves toward the lock tongue, the sliding connection end moves away from the fixed connection end, the lock tongue is driven to extend out of the shell, and the snap-fit ​​assembly snaps the rotating handle; when unlocking, the snap-fit ​​assembly releases the rotating handle, the free end of the rotating handle rotates toward the side away from the lock tongue, the movable connection end moves toward the side away from the lock tongue, the sliding connection end approaches the fixed connection end, and the lock tongue is driven to retract into the shell.

[0012] Wherein, the rotating bracket includes a first connecting plate, a second connecting plate and a connecting shaft, one end of the first connecting plate is rotatably connected to the connecting shaft, the other end of the first connecting plate is provided with a first rivet column, the first rivet column is rotatably connected to the rotating handle, one end of the second connecting plate is rotatably connected to the connecting shaft, the other end of the second connecting plate is provided with a second rivet column, the second rivet column is rotatably connected to the rotating handle, and both ends of the connecting shaft are rotatably connected to the shell.

[0013] Wherein, the handle assembly also includes a pin shaft and a torsion spring. The pin shaft is sequentially penetrated by the torsion spring, the rotating handle and the lock tongue. The two ends of the pin shaft are slidably connected to the shell. The torsion spring is used to drive the rotating handle away from the lock tongue.

[0014] Wherein, limiting protrusions are arranged on the two side surfaces of the shell, and the locking tongue is slidably arranged between the limiting protrusions and the bottom surface of the shell.

[0015] Among them, the snap-fit ​​assembly includes a snap-fit ​​button and a driving spring, the snap-fit ​​button is rotatably arranged on the shell, the free end of the rotating handle is provided with a snap-fit ​​groove, the snap-fit ​​button is provided with a snap-fit ​​protrusion, the snap-fit ​​protrusion is movably snapped with the snap-fit ​​groove, and the driving spring is used to drive the snap-fit ​​button to snap with the rotating handle.

[0016] Wherein, a limiting block is provided at one end of the snap-fit ​​button away from the snap-fit ​​protrusion, a second opening is provided at one end of the shell away from the first opening, and the limiting block is clamped in the second opening.

[0017] Wherein, the locking tongue is provided with a protrusion, and the protrusion is clamped in the second opening.

[0018] Wherein, the rotating handle is rotatably provided with a rotating bolt, the locking tongue is provided with a self-locking block, the rotating bolt comprises a nut, a screw rod and a crankshaft gasket connected in sequence, and the crankshaft gasket is movably engaged with the self-locking block.

[0019] Wherein, a sealing ring is arranged between the crankshaft gasket and the rotating handle.

[0020] The beneficial effects produced by the utility model are as follows: the locking device of the utility model is provided with a rotating bracket, which forms a rowing assist structure with the rotating handle, so that locking and unlocking are smoother and more labor-saving, and the two force points of the rotating handle and the rotating bracket can withstand greater push and pull forces, and the structure is simple, the cost is low, and the practicality is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the locking state of the locking device of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the locking device of the utility model in the unlocked state.

[0023] Figure 3 It is a structural schematic diagram of the rotating handle of the utility model.

[0024] Figure 4 It is a structural schematic diagram of the shell of the utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the locking device of the utility model after the rotating handle and the housing are hidden.

[0026] Figure 6 It is a structural schematic diagram of the rotating bracket of the utility model.

[0027] Figure 7 It is a structural schematic diagram of the lock tongue of the utility model.

[0028] Figure 8 It is another structural schematic diagram of the lock tongue of the utility model.

[0029] Fig. 9 It is a structural schematic diagram of the rotating bolt of the utility model.

[0030] In the figure: 1, shell; 11, first opening; 12, limiting protrusion; 13, second opening; 2, locking tongue; 21, raised portion; 22, self-locking block; 3, handle assembly; 31, rotating handle; 311, snap-fit ​​groove; 312, rotating bolt; 3121, nut; 3122, screw; 3123, crankshaft gasket; 3124, sealing ring; 32, rotating bracket; 321, first connecting piece; 3211, first rivet column; 322, second connecting piece; 3221, second rivet column; 323, connecting shaft; 33, pin shaft; 34, torsion spring; 4, snap-fit ​​assembly; 41, snap-fit ​​button; 411, snap-fit ​​protrusion; 412, limiting block; 42, driving spring. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0032] See also Figure 1 and Figure 2 A chassis panel locking device of this embodiment includes a shell 1, a lock tongue 2, a handle assembly 3 and a buckle assembly 4. The lock tongue 2 is slidably arranged on the shell 1. The handle assembly 3 is used to drive the lock tongue 2 to extend out of the shell 1 to lock or retract into the shell 1 to unlock. The buckle assembly 4 is used to buckle the rotating handle 31 or release the rotating handle 31. Unlocking and locking can be achieved through two operations. The operation is simple and efficient.

[0033] Furthermore, the handle assembly 3 includes a rotating handle 31 and a rotating bracket 32. One end of the rotating handle 31 is rotatably connected to the locking tongue 2 to form a mobile connection end. The other end of the rotating handle 31 is freely rotatable and is called a free end. One end of the rotating bracket 32 ​​is rotatably connected to the housing 1 to form a fixed connection end. The other end of the rotating bracket 32 ​​is hinged to the middle of the rotating handle 31 to form a mobile connection end. The sliding connection end is located between the mobile connection end and the fixed connection end. In this embodiment, the rotating handle 31 is rotatably connected to the rotating bracket 32 ​​to form a rowing assist structure. When rotating, the power arm has more workmanship, and locking and unlocking are smoother and more labor-saving. The structure has two force application points, can withstand large push and pull forces, can be used to lock panels of different weights, and has a simple structure and low cost.

[0034] Specifically, a first opening 11 is provided at one end of the bottom of the shell 1; the lock tongue 2 is slidably arranged in the shell, and one end of the lock tongue 2 extends out of or retracts into the shell 1 through the first opening 11; the snap-fit ​​assembly 4 is used to snap or release the rotating handle 31. When locking, the free end of the rotating handle 31 rotates toward the fixed connection end, the moving connection end approaches the lock tongue 2, and the sliding connection end moves away from the fixed connection end, driving the lock tongue 2 to extend out of the shell 1 through the first opening 11, and the snap-fit ​​assembly 4 snaps the rotating handle 31, and the locking device is locked. When unlocking, the snap-fit ​​assembly 4 releases the rotating handle 31, the free end of the rotating handle 31 rotates toward the side away from the lock tongue 2, the moving connection end moves toward the side away from the lock tongue 2, the sliding connection end approaches the fixed connection end, and the lock tongue 2 is driven to retract into the shell 1 through the first opening 11, and the locking device is unlocked.

[0035] Specifically, see Figure 2 and Figure 6 The rotating bracket 32 ​​includes a first connecting piece 321, a second connecting piece 322 and a connecting shaft 323. One end of the first connecting piece 321 is rotatably connected to the connecting shaft 323. The other end of the first connecting piece 321 is provided with a first rivet column 3211. The first rivet column 3211 is rotatably connected to the rotating handle 31. One end of the second connecting piece 322 is rotatably connected to the connecting shaft 323. The other end of the second connecting piece 322 is provided with a second rivet column 3221. The second rivet column 3221 is rotatably connected to the rotating handle 31. Both ends of the connecting shaft 323 are rotatably connected to the shell 1. The rotating bracket 32 ​​includes a first connecting piece 321 and a second connecting piece 322. The first connecting piece 321 is rotatably connected to the shell body 1 through a connecting shaft 323 to form a fixed connecting end. The first connecting piece 321 is rotatably connected to the rotating handle 31 through a first rivet column 3211 to form a movable connecting end. Similarly, the second connecting piece 322 is rotatably connected to the shell body 1 through a connecting shaft 323 to form a fixed connecting end. The second connecting piece 322 is rotatably connected to the rotating handle 31 through a second rivet column 3221 to form a movable connecting end. Moreover, the first connecting piece 321 and the second connecting piece 322 are arranged in parallel, which can improve the rotation smoothness of the rotating handle 31 and make the rotation of the rotating handle 31 more labor-saving and smooth.

[0036] Specifically, see Figure 5The handle assembly 3 also includes a pin shaft 33 and a torsion spring 34. The pin shaft 33 is penetrated by the torsion spring 34, the rotating handle 31 and the lock tongue 2 in sequence. The two ends of the pin shaft 33 are slidably connected with the housing 1. The torsion spring 34 is used to drive the rotating handle 31 away from the lock tongue 2. The two side walls of the housing 1 are provided with a long strip of limiting holes. The pin shaft 33 is slidably set in the limiting holes to provide a sliding guide for the pin shaft 33. The rotating handle 31 is connected with the lock tongue 2 through the pin shaft 33 to form a moving assembly, and the moving assembly can slide along the limiting hole. One end of the torsion spring 34 abuts against the rotating handle 31, and the other end of the torsion spring 34 abuts against the lock tongue 2. Under the drive of the torsion spring 34, the rotating handle 31 is away from the lock tongue 2. At the same time, the torsion spring 34, the rotating handle 31 and the lock tongue 2 are all sleeved on the pin shaft 33. Under the joint action, the lock tongue 2 is driven to extend or retract into the housing 1.

[0037] Specifically, see Figure 4 The two sides of the housing 1 are provided with limiting protrusions 12, and the lock tongue 2 is slidably arranged between the limiting protrusions 12 and the bottom surface of the housing 1. The limiting protrusions 12 can limit the active position of the lock tongue 2 and ensure the smoothness of the sliding of the lock tongue 2.

[0038] Specifically, see Figure 5 The snap-fit ​​assembly 4 of this embodiment includes a snap-fit ​​button 41 and a driving spring 42. The snap-fit ​​button 41 is rotatably arranged on the housing 1. The free end of the rotating handle 31 is provided with a snap-fit ​​groove 311. The snap-fit ​​button 41 is provided with a snap-fit ​​protrusion 411. The snap-fit ​​protrusion 411 is movably snapped with the snap-fit ​​groove 311. The driving spring 42 is used to drive the snap-fit ​​button 41 to snap with the rotating handle 31. When the locking device of this embodiment is in the locked state, the snap-fit ​​protrusion 411 of the snap-fit ​​button 41 is snapped with the snap-fit ​​groove 311 of the rotating handle 31. The snap-fit ​​assembly 4 fastens the rotating handle 31. The rotating handle 31 is arranged parallel to the lock tongue 2. The rotating bracket 32 ​​is arranged parallel to the lock tongue 2. The lock tongue 2 extends out of the housing 1 through the first opening 11 and is locked with the external lock. When unlocking, the snap-fit ​​button 41 is pressed to disengage the snap-fit ​​protrusion 411 from the snap-fit ​​groove 311. The snap-fit ​​assembly 4 releases the rotating handle 31. The rotating bracket 32 ​​is arranged parallel to the lock tongue 2. The lock tongue 2 extends out of the housing 1 through the first opening 11 and is locked with the external lock. When unlocking, the snap-fit ​​button 41 is pressed to disengage the snap-fit ​​protrusion 411 from the snap-fit ​​groove 311. The snap-fit ​​assembly 4 releases the rotating handle 31. The handle 31 pops open under the action of the driving spring 42, and the free end of the rotating handle 31 rotates away from the lock tongue 2. The state of the rotating handle 31 and the lock tongue 2 changes from a parallel state to an intersecting state of the rotating handle 31 and the lock tongue 2. The rotating handle 31 simultaneously drives the movable connecting end to move, so that the rotating bracket 32 ​​rotates away from the lock tongue 2, and the state of the rotating bracket 32 ​​and the lock tongue 2 changes from a parallel state to an intersecting state. At the same time, the sliding connecting end approaches the movable connecting end, and the lock tongue 2 retracts to the shell 1 to achieve unlocking.

[0039] Specifically, see Figure 3 and 5In this embodiment, a limit block 412 is provided at one end of the buckle button 41 away from the buckle protrusion 411, and a second opening 13 is provided at one end of the housing 1 away from the first opening 11, and the limit block 412 is clamped in the second opening 13. The limit block 412 can limit the rotation angle of the buckle button 41, so that the buckle button 41 can maintain a relatively flat surface after being buckled with the rotating handle 31 or after being released from the rotating handle 31, so as to facilitate the pressing operation again.

[0040] Specifically, see Figure 4 , 7 8. The lock tongue 2 of this embodiment is provided with a protrusion 21, which is clamped in the second opening 13. The protrusion 21 can limit the distance of the lock tongue 2 extending out of the first opening 11, thereby preventing the entire lock tongue 2 from sliding out of the housing 1 and maintaining a firm structure.

[0041] Specifically, see Figure 2 , 9 The rotating handle 31 of this embodiment is provided with a rotating bolt 312, and the lock tongue 2 is provided with a self-locking block 22. The rotating bolt 312 includes a nut 3121, a screw rod 3122 and a crankshaft gasket 3123 connected in sequence, and the crankshaft gasket 3123 is movably engaged with the self-locking block 22. The rotating handle 31 of this embodiment is provided with a rotating bolt 312, and the rotating handle 31 can be fixed by rotating the bolt 312 to prevent the rotating handle 31 from being loosened due to misoperation, which plays a safety role. Specifically, a flat key is provided on the surface of the screw rod 3122, and the crankshaft gasket 3123 is fixedly connected to the screw rod 3122 through the flat key. The surface of the nut 3121 has a cross groove, and the nut 3121 is rotated through the cross groove to drive the crankshaft gasket 3123 to rotate, so that the protruding part of the crankshaft gasket 3123 is separated from the buckle block, the rotating handle 31 is loosened, and the rotating handle 31 can rotate freely; similarly, the nut 3121 is rotated to rotate the protruding part of the crankshaft gasket 3123 and abut against the buckle block, the rotating handle 31 is fastened with the locking tongue 2, and the locking device is in a locked state. Preferably, a sealing ring 3124 is provided between the crankshaft gasket 3123 and the rotating handle 31, and the sealing ring 3124 can increase the sealing performance between the crankshaft gasket 3123 and the rotating handle 31, thereby improving the operating performance.

[0042] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A chassis panel locking device, characterized in that: include A shell, wherein a first opening is provided at one end of the bottom of the shell; A lock tongue is slidably disposed in the housing, and one end of the lock tongue extends out of or retracts into the housing through the first opening; The handle assembly includes a rotating handle and a rotating bracket, one end of the rotating handle is rotatably connected to the lock tongue to form a sliding connection end, and the other end of the rotating handle is freely rotatable and is called a free end, one end of the rotating bracket is rotatably connected to the shell to form a fixed connection end, and the other end of the rotating bracket is hinged to the middle of the rotating handle to form a moving connection end, and the sliding connection end is located between the moving connection end and the fixed connection end; A buckle assembly, used to buckle or release the rotating handle; When locking, the free end of the rotating handle rotates toward the fixed connection end, the movable connection end moves toward the lock tongue, the sliding connection end moves away from the fixed connection end, the lock tongue is driven to extend out of the shell, and the snap-fit ​​assembly snaps the rotating handle; when unlocking, the snap-fit ​​assembly releases the rotating handle, the free end of the rotating handle rotates toward the side away from the lock tongue, the movable connection end moves toward the side away from the lock tongue, the sliding connection end approaches the fixed connection end, and the lock tongue is driven to retract into the shell.

2. The chassis panel locking device according to claim 1, characterized in that: The rotating bracket includes a first connecting plate, a second connecting plate and a connecting shaft, one end of the first connecting plate is rotatably connected to the connecting shaft, the other end of the first connecting plate is provided with a first rivet column, the first rivet column is rotatably connected to the rotating handle, one end of the second connecting plate is rotatably connected to the connecting shaft, the other end of the second connecting plate is provided with a second rivet column, the second rivet column is rotatably connected to the rotating handle, and both ends of the connecting shaft are rotatably connected to the shell.

3. The chassis panel locking device according to claim 1, characterized in that: The handle assembly also includes a pin shaft and a torsion spring. The pin shaft is sequentially penetrated by the torsion spring, the rotating handle and the lock tongue. Both ends of the pin shaft are slidably connected to the shell. The torsion spring is used to drive the rotating handle away from the lock tongue.

4. The chassis panel locking device according to claim 1, characterized in that: The two side surfaces of the shell are provided with limiting protrusions, and the locking tongue is slidably arranged between the limiting protrusions and the bottom surface of the shell.

5. The chassis panel locking device according to claim 1, characterized in that: The snap-fit ​​assembly includes a snap-fit ​​button and a driving spring. The snap-fit ​​button is rotatably arranged on the shell. The free end of the rotating handle is provided with a snap-fit ​​groove. The snap-fit ​​button is provided with a snap-fit ​​protrusion. The snap-fit ​​protrusion is movably snapped with the snap-fit ​​groove. The driving spring is used to drive the snap-fit ​​button to snap with the rotating handle.

6. The chassis panel locking device according to claim 5, characterized in that: A limiting block is disposed at one end of the buckling button away from the buckling protrusion, a second opening is disposed at one end of the shell away from the first opening, and the limiting block is clamped in the second opening.

7. The chassis panel locking device according to claim 6, characterized in that: The locking tongue is provided with a protrusion, and the protrusion is clamped in the second opening.

8. The chassis panel locking device according to claim 1, characterized in that: The rotating handle is rotatably provided with a rotating bolt, the locking tongue is provided with a self-locking block, the rotating bolt comprises a nut, a screw rod and a crankshaft gasket which are connected in sequence, and the crankshaft gasket is movably connected with the self-locking block.

9. The chassis panel locking device according to claim 8, characterized in that: A sealing ring is arranged between the crankshaft gasket and the rotating handle.

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