CN220606313U

CN220606313U - Duplex locking device

Info

Publication number: CN220606313U
Application number: CN202321690160.4U
Authority: CN
Inventors: 王付华; 王辉
Original assignee: Shanghai Huaheng Technology Development Co ltd
Current assignee: Shanghai Huaheng Technology Development Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-03-15
Anticipated expiration: 2033-06-30

Abstract

The utility model discloses a duplex locking device which comprises a handle and locking mechanisms, wherein the locking mechanisms are rotatably arranged at two ends of the handle. When the moving handle is locked, the gasket slides along the opposite connecting rod along the axial direction, the front wedge block is pushed forward, the sliding block is jacked up along the radial direction, and the fixed module is locked; compared with a single locking device, the locking device has even holding force during locking, and the handle is not easy to break; and the locking and releasing speed is high.

Description

Duplex locking device

Technical Field

The utility model relates to the technical field of duplex locking, in particular to a duplex locking device.

Background

At present, a large amount of PCB integrated modules and 19-inch plug boxes are used in the electronic application industry, and in order to ensure the installation between a PCB daughter board and a motherboard, a locking device is usually used for the daughter board independently so as to prevent the PCB board from falling off from a slot of the plug box due to vibration and impact.

In the prior art, the locking device for the PCB groove disclosed by the publication No. CN204482206U, the end surfaces of the two wedges and the middle locking block are inclined surfaces, the middle locking block can slide outwards along the contacted inclined surface, the locking device and the PCB are arranged in the slot together, and the width of the locking device is increased by the outwards sliding of the middle locking block, so that the PCB is locked in the slot of the plug box; however, the existing locking device is only a single locking mechanism, the stress is not uniform enough during locking, and the locking mechanism is easy to break, so we propose a duplex locking device.

Disclosure of Invention

The utility model aims to provide a duplex locking device which aims to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the duplex locking device comprises a handle and locking mechanisms, wherein the locking mechanisms are rotatably arranged at two ends of the handle.

Preferably, the locking mechanism comprises a connecting rod, one end of the connecting rod is rotationally connected with the handle, a fixed wedge block is arranged at one end of the connecting rod far away from the handle, a first sliding block, a second sliding block, a third sliding block and a front wedge block are sequentially arranged on the connecting rod in a sliding mode, an adjusting screw is arranged at one end of the connecting rod, and the adjusting screw penetrates through the fixed wedge block and is connected with the connecting rod through threads.

Preferably, the adjusting screw is sleeved with an elastic washer.

Preferably, a gasket is arranged between the elastic gasket and the fixed wedge, and one end, far away from the fixed wedge, of the fixed wedge is provided with the gasket.

Preferably, the end surfaces of the two ends of the first sliding block, which are respectively connected with the fixed wedge block and the second sliding block, are inclined surfaces and are mutually matched; the end faces of the joint of the two ends of the third sliding block, the second sliding block and the front wedge block are inclined planes and are mutually matched.

Preferably, the handle and the locking mechanism are rotatably connected through a pin shaft.

Compared with the prior art, the utility model has the beneficial effects that: when the moving handle is locked, the gasket slides along the opposite connecting rod along the axial direction, the front wedge block is pushed forward, the sliding block is jacked up along the radial direction, and the fixed module is locked; compared with a single locking device, the locking device has even holding force during locking, and the handle is not easy to break; and the locking and releasing speed is high.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model from another perspective of FIG. 1;

FIG. 3 is a schematic view of the structure of the locking mechanism of the present utility model;

FIG. 4 is a schematic view of the structure of the present utility model from another perspective of FIG. 3;

FIG. 5 is a schematic illustration of the present utility model with the fixed wedge and first slider removed;

fig. 6 is a cross-sectional view of fig. 3 in accordance with the present utility model.

In the figure: 1. a handle; 2. a locking mechanism; 201. an elastic washer; 202. a fixed wedge; 203. a first slider; 204. a second slider; 205. a third slider; 206. a front wedge; 207. a gasket; 208. a connecting rod; 209. and adjusting the screw.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

Referring to fig. 1-6, in an embodiment of the present utility model, a duplex locking device includes a handle 1 and a locking mechanism 2, wherein the locking mechanism 2 is rotatably installed at both ends of the handle 1; the handle 1 is rotatably connected with the locking mechanism 2 through a pin shaft.

The locking mechanism 2 comprises a connecting rod 208, one end of the connecting rod 208 is rotationally connected with the handle 1, a fixed wedge block 202 is arranged at one end of the connecting rod 208 far away from the handle 1, a first slide block 203, a second slide block 204, a third slide block 205 and a front wedge block 206 are sequentially arranged on the connecting rod 208 in a sliding manner, an adjusting screw 209 is arranged at one end of the connecting rod 208, and the adjusting screw 209 penetrates through the fixed wedge block 202 and is in threaded connection with the connecting rod 208; the adjusting screw 209 is sleeved with an elastic washer 201; a gasket 207 is arranged between the elastic washer 201 and the fixed wedge 202, and a gasket 207 is arranged at one end of the fixed wedge 202 away from the fixed wedge 202; the end surfaces of the two ends of the first sliding block 203, which are respectively connected with the fixed wedge block 202 and the second sliding block 204, are inclined surfaces and are mutually matched; the end surfaces of the two ends of the third sliding block 205, which are respectively connected with the second sliding block 204 and the front wedge block 206, are inclined surfaces and are mutually matched.

When the moving handle is locked, the gasket slides along the opposite connecting rod along the axial direction, the front wedge block 206 pushes forward, the sliding block jacks up along the radial direction, and the fixed module is locked; compared with a single locking device, the locking device has even holding force during locking, and the handle is not easy to break; the locking and releasing speed is high; the requirement of the military standard SJ20382-2007 of the electronic industry of the single locking device is that the locking-releasing is 2000 times, the service life of the duplex locking device can reach more than 10000 times, the holding force is kept uniform, the requirement of the special industry reaches 10000 times, and the product can meet the requirement.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a duplex locking device which characterized in that: the novel bicycle handle comprises a handle (1) and a locking mechanism (2), wherein the locking mechanism (2) is rotatably arranged at two ends of the handle (1); the locking mechanism (2) comprises a connecting rod (208), one end of the connecting rod (208) is rotationally connected with the handle (1), a fixed wedge block (202) is arranged at one end, far away from the handle (1), of the connecting rod (208), a first sliding block (203), a second sliding block (204), a third sliding block (205) and a front wedge block (206) are sequentially arranged on the connecting rod (208) in a sliding manner, an adjusting screw (209) is arranged at one end, located at the fixed wedge block (202), of the connecting rod (208), and the adjusting screw (209) penetrates through the fixed wedge block (202) to be connected with the connecting rod (208) through threads; an elastic washer (201) is sleeved on the adjusting screw (209); a gasket (207) is arranged between the elastic gasket (201) and the fixed wedge block (202), and one end, far away from the fixed wedge block (202), of the fixed wedge block (202) is provided with the gasket (207); the end surfaces of the two ends of the first sliding block (203) which are respectively connected with the fixed wedge block (202) and the second sliding block (204) are inclined surfaces and are mutually matched; the end surfaces of the two ends of the third sliding block (205) which are respectively connected with the second sliding block (204) and the front wedge block (206) are inclined surfaces and are mutually matched; the handle (1) is rotatably connected with the locking mechanism (2) through a pin shaft.