Cabinet link lock

Abstract

The utility model relates to a lock technology field especially relates to a cabinet connecting rod lock, including lock shell, handle shaft is rotationally arranged in the lock shell, handle shaft one end is hinged with handle, and the other end is connected with connecting rod transmission subassembly, handle can rotate relative to lock shell, the one end away from handle shaft of handle is equipped with the lock core subassembly of handle rotation limitation, the handle groove that is equipped with the handle of installing handle of lock shell, handle groove first end is equipped with handle shaft hole of installing handle shaft, handle end part is equipped with the installation groove of butt joint with handle shaft end part, handle shaft is connected through the hinge after butt joint, both sides outer wall of installation groove all are equipped with support block, and the pointed corner end of support block sets up to handle groove, and handle groove corresponds the recess of being recessed downwards at support block department, recess is located the axis both sides of handle shaft hole horizontal setting, the utility model has the beneficial effect that: prevent handle and lock shell collision and lead to damage.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a cabinet linkage lock. Background Technology

[0002] In the field of mobile communication equipment, cabinets and electrical cabinets must be equipped with door locks to prevent the cabinet doors from being opened arbitrarily. Patent publication number CN116427785A discloses a concealed handle flat lock. This handle flat lock has a pivot hole at one end of its base, with a pivot located within the pivot hole. One end of the handle is hinged to the pivot at the base via a pin, and a torsion spring is provided at the hinge pin. An anti-collision block is provided at the bottom of the handle within the handle slot in the base, abutting against the bottom of the handle slot. The anti-collision block is designed to prevent damage from impact when the handle is inserted into the base. However, this technical solution increases the number of components due to the additional anti-collision block, thereby increasing production costs and reducing assembly efficiency. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a cabinet linkage lock to address the shortcomings of the prior art and prevent the handle from colliding with the lock housing and causing damage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cabinet linkage lock, comprising a lock housing and a handle shaft rotatably disposed within the lock housing. One end of the handle shaft is hinged to a handle, and the other end is connected to a linkage transmission assembly. The handle can rotate relative to the lock housing. A lock cylinder assembly restricting the rotation of the handle is provided at the end of the handle away from the handle shaft. The lock housing is provided with a handle groove for mounting the handle. The first end of the handle groove is provided with a handle shaft hole for mounting the handle shaft. The end of the handle is provided with a mounting groove for inserting into the end of the handle shaft. After the handle shaft and the handle are inserted, they are hinged by a pin. Support blocks are provided on the outer walls of both sides of the mounting groove. The pointed ends of the support blocks face the handle groove. The handle groove is provided with a downwardly recessed groove corresponding to the support blocks. The grooves are located on both sides of the axis laterally arranged in the handle shaft hole.

[0005] The present invention, which has the above-mentioned features, is characterized by: changing the shape of the handle, setting a support block with sharp corners, and setting a corresponding groove in the lock shell. Since there is a height difference between the groove and the handle groove, the handle can only be pressed down to complete the locking when it returns to its original position and coincides with the handle groove. When unlocking, the handle rotates and the support block rotates from the groove to the handle groove. At this time, the handle cannot be pressed down to prevent the handle from colliding with the lock shell and causing damage.

[0006] A further feature of this invention is that a connecting slope is provided at the connection point between the groove and the bottom of the handle groove.

[0007] The present invention, which has the above-mentioned features, has a slope that makes the support block of the handle slide more smoothly from the groove to the handle slot.

[0008] A further feature of this invention is that the linkage transmission assembly includes a transmission box, a transmission shaft rotatably disposed within the transmission box, a gear sleeved on the transmission shaft, and two connecting rods slidably disposed within the transmission box and meshing with the gear. One end of each connecting rod extends out of the transmission box. One end of the transmission shaft is provided with a rectangular insertion block, and the other end is provided with a threaded inner hole. The end of the handle shaft is provided with a rectangular insertion groove for insertion into the rectangular insertion block. The bottom of the transmission box is provided with a countersunk hole, and a screw threaded into the countersunk hole and connected to the threaded inner hole of the transmission shaft is inserted therein.

[0009] The present invention, which has the above features, achieves linkage by inserting the rotating shaft and the handle shaft, and achieves linkage by inserting the gear and the rotating shaft. The three are locked together by screws, making assembly convenient.

[0010] A further feature of this invention is that the wall of the mounting groove is V-shaped, and an arc-shaped spring is sleeved on the handle shaft, with the wall of the mounting groove abutting against the arc-shaped spring.

[0011] The present invention, which has the above-mentioned features, has the following characteristics: by setting an arc-shaped spring, the handle will have a springing effect when it pops out of the handle slot and rotates around the axis, thereby improving the handling feel of the handle.

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0014] Figure 2 This is a schematic diagram of the handle in an embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the lock shell structure according to an embodiment of the present utility model.

[0016] Figure 4 This is an exploded view of the linkage transmission assembly according to an embodiment of the present invention.

[0017] Figure 5 This is a top view of the linkage transmission assembly according to an embodiment of the present invention.

[0018] Figure 6 for Figure 5 Sectional view of AA. Detailed Implementation

[0019] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0020] like Figure 1-6 The illustrated rack linkage lock includes a lock housing 1 and a handle shaft 2 rotatably disposed within the lock housing 1. One end of the handle shaft 2 is hinged to a handle 3, and the other end is connected to a linkage transmission assembly. The handle 3 can rotate relative to the lock housing 1. A lock cylinder assembly 4, restricting the rotation of the handle 3, is provided at the end of the handle 3 furthest from the handle shaft 2. The lock housing 1 has a handle groove 11 for mounting the handle 3. The first end of the handle groove 11 has a handle shaft hole 111 for mounting the handle shaft 2. The end of the handle 3 has a mounting groove 31 for inserting into the end of the handle shaft 2. After the handle shaft 2 and the handle 3 are inserted, they are hinged by a pin 5. Support blocks 32 are provided on both sides of the outer wall of the mounting groove 31. The pointed end 321 of the support block 32 faces the handle groove 11. The handle groove 11 is provided with a downward recessed groove 112 corresponding to the support block 32. The groove 112 is located on both sides of the axis of the handle shaft hole 111 which is horizontally arranged (the width direction of the lock case is horizontal and the length direction is vertical). The groove 112 and the bottom of the handle groove 111 are provided with a connecting slope 113. The groove wall of the mounting groove 31 is V-shaped. An arc-shaped spring piece 20 is sleeved on the handle shaft 2. The groove wall of the mounting groove 31 abuts against the arc-shaped spring piece 20.

[0021] The linkage transmission assembly includes a transmission box 6, a transmission shaft 7 rotatably disposed within the transmission box 6, a gear 8 sleeved on the transmission shaft 7, and two connecting rods 9 slidably disposed within the transmission box 6 and meshing with the gear 8. The two connecting rods 9 are respectively disposed on both sides of the transmission box 6 in the width direction and one end of each extends out of the transmission box 6. One end of the transmission shaft 7 is provided with a rectangular insertion block 71, and the other end is provided with a threaded inner hole 72. The end of the handle shaft 2 is provided with a rectangular insertion groove 21 that is inserted into the rectangular insertion block 71. The bottom of the transmission box 6 is provided with a countersunk hole 61, and a screw 10 that is threadedly connected to the threaded inner hole 72 of the transmission shaft 7 passes through the countersunk hole 61.

[0022] In use, after fixing the cabinet linkage lock to the mounting hole on the cabinet door, the linkages on both sides of the rear of the cabinet door are connected to the top and bottom rods respectively. Use the key to unlock the lock cylinder assembly, and the handle pops out of the handle slot of the lock case. While turning the handle, it drives the linkages on both sides and the top and bottom rods to move up and down, thereby locking and opening the cabinet door. After closing the cabinet door, turn the handle back to its original position and then press it down into the handle slot of the lock case to lock the cabinet door. By setting the support block and groove, if the handle does not turn back to its original position when closing the cabinet door, it cannot be pressed down, thus preventing damage to the handle.

Claims

1. A cabinet linkage lock, comprising a lock housing and a handle shaft rotatably disposed within the lock housing, wherein a handle is hinged to one end of the handle shaft and a linkage transmission assembly is connected to the other end, the handle is rotatable relative to the lock housing, and a lock cylinder assembly for restricting the rotation of the handle is provided at the end of the handle away from the handle shaft, characterized in that: The lock housing is provided with a handle groove for mounting a handle. The first end of the handle groove is provided with a handle shaft hole for mounting a handle shaft. The end of the handle is provided with a mounting groove for inserting into the end of the handle shaft. After the handle shaft and the handle are inserted, they are hinged by a pin. Support blocks are provided on the outer walls of both sides of the mounting groove. The pointed ends of the support blocks are set towards the handle groove. The handle groove is provided with a downward recessed groove corresponding to the support block. The groove is located on both sides of the horizontal axis of the handle shaft hole.

2. The cabinet linkage lock according to claim 1, characterized in that: The groove and the bottom of the handle groove are provided with a connecting slope.

3. A cabinet linkage lock according to claim 1, characterized in that: The linkage transmission assembly includes a transmission box, a transmission shaft rotatably disposed within the transmission box, a gear sleeved on the transmission shaft, and two connecting rods slidably disposed within the transmission box and meshing with the gear. The two connecting rods are respectively disposed on both sides of the transmission box in the width direction and one end of each extends out of the transmission box. One end of the transmission shaft is provided with a rectangular insertion block, and the other end is provided with a threaded inner hole. The end of the handle shaft is provided with a rectangular insertion groove for insertion into the rectangular insertion block. The bottom of the transmission box is provided with a countersunk hole, and a screw that is threaded into the threaded inner hole of the transmission shaft passes through the countersunk hole.

4. A cabinet linkage lock according to any one of claims 1-3, characterized in that: The mounting groove has a V-shaped wall, and an arc-shaped spring is fitted on the handle shaft. The wall of the mounting groove abuts against the arc-shaped spring.

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