Locking device of cam lock

Abstract

The utility model relates to a fastening device, in particular to a locking device of a cam lock. Comprising a lock body, a sealing gasket, a locking nut, an adjusting nut and a spring bolt. The sealing gasket, the locking nuts, the adjusting nuts and the spring bolt are sequentially arranged on the lock body in a penetrating mode from top to bottom, the two adjusting nuts are located on the upper portion and the lower portion of the spring bolt respectively, threaded sections are arranged on the lock body at intervals, and therefore the locking nuts and the adjusting nuts are in threaded connection with the lock body. The anti-theft lock is characterized by further comprising a locking screw, a threaded through hole is formed in the side wall of the locking nut, the locking screw is screwed into the threaded through hole, and the locking nut and the lock body are fastened through the locking screw. The locking device is simple in structure, and on the premise that the structure of an existing product is not changed, firm mechanical looseness prevention is achieved through the precisely-manufactured miniature set screw, and the locking device can be repeatedly used; the fastening device has the advantages of being reliable in fastening effect and convenient to mount and dismount.

Description

Technical Field

[0001] This utility model relates to a fastening device, specifically a locking device for a rotary lock. Background Technology

[0002] Compression-type rotary latch locks are widely used in industrial applications. They fix the latch to the back of the door frame and tighten it with continuous half-turn rotations. The compression motion pulls it upwards to provide auxiliary protection during sealing and helps reduce or eliminate noise or impact sounds caused by vibration. The lock is secured by passing the lock body through the door panel and locking it with a lock nut, simultaneously compressing the sealing gasket to achieve both fixing and sealing. Existing door locks often use thin nuts for fixing, as their engagement length is only 2-3 teeth. During equipment operation, vibration can easily cause the lock body to wobble and reduce the sealing level, posing a quality hazard. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects and propose a rotary tongue lock locking device with reliable fastening effect.

[0004] To achieve the above objectives, this utility model is implemented as follows.

[0005] A locking device for a rotary latch lock includes a lock body, a sealing gasket, a locking nut, an adjusting nut, and a latch. The sealing gasket, locking nut, adjusting nut, and latch are sequentially mounted on the lock body from top to bottom. There are two adjusting nuts, located at the upper and lower parts of the latch, respectively. Threaded sections are spaced apart on the lock body, thereby threading the locking nut, adjusting nut, and lock body together. The device also includes a locking screw. A threaded through hole is formed on the side wall of the locking nut, and the locking screw is screwed into the threaded through hole to fasten the locking nut to the lock body.

[0006] The locking device of the rotary tongue lock has two threaded through holes on the locking nut, and a locking screw is provided in each of the two threaded through holes.

[0007] The locking device of the rotary tongue lock has a locking screw made entirely of copper or its head, and a slotted, cross-shaped, or hexagonal groove is provided at the tail of the locking screw. The groove is used to rotate the locking screw with a tool.

[0008] The locking device of the rotary tongue lock has a locking screw with a thread angle of 60 degrees.

[0009] The locking device proposed in this utility model adds two threaded holes at a 60-degree angle to the locking nut of an existing rotary latch lock. After the nut is tightened in place, two locking screws are screwed into the corresponding threaded holes. Simultaneously, the front part or the entire body of the locking screw is a copper insert. When tightening the locking screw, the copper component will deform against the lock body and the locking nut, thus firmly fixing the locking nut in place. When replacing the rotary latch lock, simply loosen the two set screws and then remove the locking nut normally.

[0010] As can be seen from the above principles, this locking device has a simple structure. Without changing the existing product structure, it achieves a firm mechanical anti-loosening effect through precision-manufactured miniature set screws and is reusable. While having a reliable fastening effect, it also has the advantages of convenient installation and disassembly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the rotary tongue lock in this embodiment.

[0012] Figure 2 This is a schematic diagram of the locking screw and fastening nut in this embodiment.

[0013] Figure 3 This is a schematic diagram of the locking screw in this embodiment. Detailed Implementation

[0014] The present invention will be further illustrated by specific embodiments below.

[0015] like Figure 1 , Figure 2 As shown, a locking device for a rotary latch lock includes a lock body 1, a sealing gasket 2, a locking nut 3, an adjusting nut 4, and a latch 5. The sealing gasket 2, locking nut 3, adjusting nut 4, and latch 5 are sequentially mounted on the lock body 1 from top to bottom. There are two adjusting nuts 4, located at the upper and lower parts of the latch 5, respectively. Threaded sections are provided at intervals on the lock body 1, thereby threading the locking nut 3, adjusting nut 4, and lock body 1 together. The device also includes a locking screw 6. A threaded through hole is provided on the side wall of the locking nut 3, and the locking screw 6 is screwed into the threaded through hole to fasten the locking nut 3 to the lock body 1.

[0016] The locking device of the rotary tongue lock has two threaded through holes on the locking nut 3, and a locking screw 6 is provided in each of the two threaded through holes.

[0017] like Figure 3 As shown, the locking device of the rotary tongue lock has a locking screw 6 made entirely of copper or its head. A slotted, cross-shaped, or hexagonal groove is provided at the tail of the locking screw, which is used to rotate the locking screw with a tool.

[0018] The locking device of the rotary tongue lock has a locking screw with a thread angle of 60 degrees.

[0019] The locking device proposed in this utility model adds two threaded holes at a 60-degree angle to the locking nut of an existing rotary latch lock. After the nut is tightened in place, two locking screws are screwed into the corresponding threaded holes. Simultaneously, the front part or the entire body of the locking screw is a copper insert. When tightening the locking screw, the copper component will deform against the lock body and the locking nut, thus firmly fixing the locking nut in place. When replacing the rotary latch lock, simply loosen the two set screws and then remove the locking nut normally.

[0020] As can be seen from the above principles, this locking device has a simple structure. Without changing the existing product structure, it achieves a firm mechanical anti-loosening effect through precision-manufactured miniature set screws and is reusable. While having a reliable fastening effect, it also has the advantages of convenient installation and disassembly.

Claims

1. A locking device for a rotary latch lock, comprising a lock body, a sealing washer, a locking nut, an adjusting nut, and a latch; the sealing washer, locking nut, adjusting nut, and latch are sequentially arranged on the lock body from top to bottom, wherein, There are two adjusting nuts, located at the upper and lower parts of the latch respectively. Threaded sections are provided at intervals on the lock body, so that the locking nut, adjusting nut and lock body are threadedly connected; the feature is that it also includes a locking screw, a threaded through hole is opened on the side wall of the locking nut, the locking screw is screwed into the threaded through hole, and the locking nut and lock body are fastened by the locking screw.

2. The locking device of the rotary latch lock according to claim 1, characterized in that: The locking nut has two threaded through holes, and a locking screw is provided in each of the two threaded through holes.

3. The locking device of the rotary latch lock according to claim 1 or 2, characterized in that: The locking screw is made entirely of copper or its head, and has a slotted, Phillips, or hexagonal groove at its tail for rotating the screw with a tool.

4. The locking device of the rotary latch lock according to claim 3, characterized in that: The external thread of the locking screw has a thread angle of 60 degrees.

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