CN216313655U

CN216313655U - Sawtooth-shaped locking strip device

Info

Publication number: CN216313655U
Application number: CN202122492927.XU
Authority: CN
Inventors: 林辉
Original assignee: Henan Enthalpy Control Electronic Technology Co ltd
Current assignee: Henan Enthalpy Control Electronic Technology Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-04-15
Anticipated expiration: 2031-10-14

Abstract

The utility model relates to a zigzag locking strip device, which comprises a left sliding rod (1), a right sliding rod (2), a connecting sliding block (3) and a connecting screw (4), wherein a plurality of left triangular convex blocks (11) are uniformly arranged on the left sliding rod (1), a connecting screw hole (12) is arranged at the upper end of the left sliding rod (1), a plurality of right triangular convex blocks (21) are uniformly arranged on the right sliding rod (2), an open slot (23) is arranged on a connecting block (22), a connecting unthreaded hole (31) is arranged on the connecting sliding block (3), the left sliding rod (1) and the right sliding rod (2) are correspondingly arranged, the left triangular convex blocks (11) are contacted with the right triangular convex blocks (21), the connecting sliding block (3) is arranged above the right sliding rod (2), the connecting screw (4) passes through the connecting unthreaded hole (31), and the open slot (23) is in threaded connection with the connecting screw hole (12), the zigzag locking strip device has a simple and novel structure, the function is practical, and heat conduction efficiency is high, and locking force is strong, locks safe and reliable, installs and removes convenient and fast.

Description

Sawtooth-shaped locking strip device

Technical Field

The utility model relates to the technical field of locking of plug-in modules of electronic equipment, in particular to a sawtooth-shaped locking strip device.

Background

At present, electronic devices have been widely used in various aspects of social life, and along with the development of information technology, the electronic devices and functions thereof are more and more complex and diverse. Sometimes these electronic devices, such as avionics, communications electronics, etc., not only need to operate with high reliability in harsh environments, and also, maintenance and repair can be easily performed, so that these electronic devices often adopt a modular design, in a modular design, the electronic device is formed by a plurality of replaceable electronic plug-in modules which are arranged in sequence in the chassis, on the one hand, the plug-in modules need to be firmly connected with the chassis, so that the electronic equipment can work in extreme mechanical environments such as high vibration magnitude and large impact load, on the other hand, the electronic components in the plug-in module can generate heat in work, if the heat cannot be conducted or dissipated in time, the electronic module may overheat or burn out, which may cause the function of the whole electronic device to be abnormal or even fail. In order to meet the requirements of extreme mechanical environment resistance and internal electronic component cooling, wedge-shaped block locking devices are generally installed on two sides of a plug-in module, and after the plug-in module is inserted into a case and matched with a template, the plug-in module is tightly extruded in a channel of the case by the wedge-shaped block locking devices under the action of external force, so that firm connection is formed between the plug-in module and the case, and a conduction path is provided for heat dissipation in the plug-in module.

The existing well-known wedge-shaped block locking device generally comprises a locking guide rail screw rod, a plurality of locking wedge-shaped blocks and a locking nut, wherein the locking wedge-shaped blocks can freely slide along the locking guide rail screw rod, a matched wedge-shaped inclined plane between the locking wedge-shaped blocks forms an angle of 45 degrees with the axis of the locking guide rail screw rod, the locking wedge-shaped blocks are axially pushed to move outwards along the wedge-shaped inclined plane by rotating the locking guide rail screw rod, the height size of the wedge-shaped block locking device is increased until the wedge-shaped blocks are tightly attached to the slot walls at two sides, the plug-in module and the wall surface of a slot channel of a case are extruded, and therefore enough friction force is generated to firmly fix the plug-in module in the case, and the purpose of locking the plug-in module is achieved. However, although the conventional wedge locking device can fix the plug-in module and provide a heat conduction path, there are still some structural design problems that cause the service performance of the wedge locking device to be degraded, for example, because of the existence of the locking guide rail screw rod in the conventional wedge locking device, the cross section of the locking wedge can only be designed into an open thin-wall structure, so that on one hand, the contact area of the matching wedge inclined planes between different locking wedges is very small, the contact thermal resistance is very large, and the thermal resistance of the whole heat conduction path is increased; on the other hand, the cross section of the open thin-wall structure weakens the capacity of the locking wedge blocks for resisting axial force, the matching parts between the wedge blocks are easy to generate plastic deformation under the action of the axial force, and the wedge block locking device is blocked, so that the plug-in module cannot be pulled out of the case.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides the sawtooth-shaped locking strip device which is simple and novel in structure, practical in function, high in heat conduction efficiency, strong in locking force, safe and reliable in locking, convenient and quick to assemble and disassemble, time-saving, labor-saving and low in production cost, and has a sawtooth-shaped structural design and a function of releasing and resetting.

The technical scheme adopted by the utility model is as follows: a sawtooth-shaped locking strip device comprises a left slide bar 1, a right slide bar 2, a connecting slide block 3 and a connecting screw 4, wherein the left slide bar 1 is sawtooth-shaped, a plurality of left triangular convex blocks 11 are uniformly arranged on the left slide bar 1, a connecting screw hole 12 is arranged at the upper end of the left slide bar 1, the right slide bar 2 is sawtooth-shaped, a plurality of right triangular convex blocks 21 are uniformly arranged on the right slide bar 2, a connecting block 22 is arranged at the upper end of the right slide bar 2, an open slot 23 is arranged on the connecting block 22, the upper side surface of the connecting block 22 is an inclined surface, a connecting light hole 31 is arranged on the connecting slide block 3, the lower side surface of the connecting slide block 3 is an inclined surface, the left slide bar 1 and the right slide bar 2 are correspondingly arranged, the left triangular convex blocks 11 are contacted with the right triangular convex blocks 21, the connecting slide block 3 is arranged above the right slide bar 2, the inclined surface of the connecting slide block 3 is contacted with the inclined surface of the connecting block 22, and the connecting screw 4 passes through the connecting light hole 31, The open groove 23 is threadedly coupled to the coupling screw hole 12.

The improved structure is characterized in that the sliding connecting pin 13 is arranged on the left sliding rod 1, the oblong sliding hole 24 is arranged on the right sliding rod 2, and the right end of the sliding connecting pin 13 is inserted into the oblong sliding hole 24.

The further improvement is that the long round sliding hole 24 is a step hole, and the right end of the sliding connecting pin 13 is provided with a flanging.

The further improvement lies in that a compression spring 5 is arranged between the upper end of the left sliding rod 1 and the connecting block 22, and the compression spring 5 is sleeved on the connecting screw 4.

The further improvement is that the bottom of the connecting screw hole 12 is provided with a large hole 14, the diameter size of the large hole 14 is larger than that of the connecting screw hole 12, the middle part of the connecting screw 4 is provided with a thin shaft 41, the diameter size of the thin shaft 41 is smaller than that of the connecting screw 4, and the length size of the thin shaft 41 is larger than that of the connecting screw hole 12.

Compared with the prior art, the utility model has the following beneficial effects: simple structure is novel, and the function is practical, zigzag structural design, and heat conduction efficiency is high, and locking force is strong, has to loosen reset function, locks safe and reliable, installs and removes convenient and fast, labour saving and time saving, low in production cost.

Drawings

Figure 1 is a schematic structural view of the present invention,

fig. 2 is a left side view of fig. 1.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.

As shown in fig. 1 and 2, a zigzag locking strip device comprises a left slide bar 1, a right slide bar 2, a connecting slide block 3 and a connecting screw 4, wherein the left slide bar 1 is zigzag-shaped, a plurality of left triangular bumps 11 are uniformly arranged on the left slide bar 1, a connecting screw hole 12 is arranged at the upper end of the left slide bar 1, a sliding connecting pin 13 is arranged on the left slide bar 1, the right slide bar 2 is zigzag-shaped, a plurality of right triangular bumps 21 are uniformly arranged on the right slide bar 2, a connecting block 22 is arranged at the upper end of the right slide bar 2, an open slot 23 is arranged on the connecting block 22, the upper side surface of the connecting block 22 is an inclined surface, a long circular sliding hole 24 is arranged on the right slide bar 2, a connecting light hole 31 is arranged on the connecting slide block 3, the lower side surface of the connecting slide block 3 is an inclined surface, the left slide bar 1 and the right slide bar 2 are correspondingly arranged, the left triangular bump 11 is contacted with the right triangular bump 21, the connecting slide block 3 is arranged above the slide bar 2, the inclined plane of the connecting slide block 3 is contacted with the inclined plane of the connecting block 22, the connecting screw 4 penetrates through the connecting unthreaded hole 31, the open slot 23 is in threaded connection with the connecting screw hole 12, the compression spring 5 is arranged between the upper end of the left slide bar 1 and the connecting block 22, the compression spring 5 is sleeved on the connecting screw 4, the right end of the sliding connecting pin 13 is inserted into the long circular sliding hole 24, the long circular sliding hole 24 is a stepped hole, the right end of the sliding connecting pin 13 is provided with a flanging, the bottom of the connecting screw hole 12 is provided with the large hole 14, the diameter size of the large hole 14 is larger than that of the connecting screw hole 12, the middle part of the connecting screw 4 is provided with the thin shaft 41, the diameter size of the thin shaft 41 is smaller than that of the connecting screw 4, and the length size of the thin shaft 41 is larger than that of the connecting screw hole 12.

According to the zigzag locking strip device, the left sliding rod 1 and the right sliding rod 2 are correspondingly arranged, the right end of the sliding connecting pin 13 is inserted into the long circular sliding hole 24, the left sliding rod 1 and the right sliding rod 2 are connected together, the connecting sliding block 3 is arranged above the right sliding rod 2, the connecting screw 4 penetrates through the connecting unthreaded hole 31 and the open slot 23 to be in threaded connection with the connecting screw hole 12, and the connecting sliding block 3 and the right sliding rod 2 are connected together, so that plug and play are facilitated, the mounting and dismounting are convenient and rapid, and time and labor are saved; the shape of the left sliding rod 1 is in a sawtooth shape, a plurality of left triangular lugs 11 are uniformly arranged on the left sliding rod, the shape of the right sliding rod 2 is in a sawtooth shape, a plurality of right triangular lugs 21 are uniformly arranged on the right sliding rod, and the sawtooth structure is designed, so that the heat conduction efficiency is high, the locking force is strong, the processing and the manufacturing are easy, and the production cost is low; a compression spring 5 is arranged between the upper end of the left sliding rod 1 and the connecting block 22, the compression spring 5 is sleeved on the connecting screw 4, the elastic function of the compression spring is adopted for resetting, the structure is simple, and the function is practical; the bottom of connecting screw hole 12 is provided with macropore 14, the diameter size of macropore 14 is greater than the diameter size of connecting screw hole 12, the middle part of connecting screw 4 is provided with thin axle 41, the diameter size of thin axle 41 is less than the diameter size of connecting screw 4, the length size of thin axle 41 is greater than the length size of connecting screw hole 12, when connecting screw 4 and connecting screw hole 12 threaded connection, the preceding tip of connecting screw 4 inserts in macropore 14, this kind of anti-drop structure of connecting screw 4, the design is simple, the function is practical, easy production and processing, be convenient for the operation of screwing and unscrewing of connecting screw 4.

The zigzag locking strip device is placed in the slot, and when the zigzag locking strip device is locked, the connecting screw 4 is screwed, so that the left slide bar 1 and the right slide bar 2 simultaneously move outwards along the left triangular convex block 11 and the right triangular convex block 21 until the zigzag locking strip device is tightly attached to the slot walls at two sides; when the connection screw 4 is loosened, the left slide bar 1 and the right slide bar 2 simultaneously move inwards along the left triangular convex block 11 and the right triangular convex block 21 under the action of the elastic force of the compression spring 5, and are far away from the wall of the slot.

Without being limited thereto, any changes or substitutions that are not thought of through the inventive work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A sawtooth-shaped locking strip device is characterized by comprising a left sliding rod (1), a right sliding rod (2), a connecting sliding block (3) and a connecting screw (4), wherein the left sliding rod (1) is sawtooth-shaped, a plurality of left triangular convex blocks (11) are uniformly arranged on the left sliding rod, a connecting screw hole (12) is arranged at the upper end of the left sliding rod (1), the right sliding rod (2) is sawtooth-shaped, a plurality of right triangular convex blocks (21) are uniformly arranged on the right sliding rod, a connecting block (22) is arranged at the upper end of the right sliding rod (2), an open slot (23) is arranged on the connecting block (22), the upper side surface of the connecting block (22) is an inclined plane, a connecting unthreaded hole (31) is arranged on the connecting sliding block (3), the lower side surface of the connecting sliding block (3) is an inclined plane, the left sliding rod (1) and the right sliding rod (2) are correspondingly arranged, and the left triangular convex blocks (11) are in contact with the right triangular convex blocks (21), the connecting slide block (3) is arranged above the right slide rod (2), the inclined plane of the connecting slide block (3) is contacted with the inclined plane of the connecting block (22), and the connecting screw (4) penetrates through the connecting unthreaded hole (31) and the open slot (23) to be in threaded connection with the connecting screw hole (12).

2. A saw-tooth locking strip device as claimed in claim 1, characterized in that the left slider bar (1) is provided with a sliding connection pin (13), the right slider bar (2) is provided with an oblong sliding hole (24), and the right end of the sliding connection pin (13) is inserted into the oblong sliding hole (24).

3. A saw-tooth locking strip device according to claim 2, characterized in that the oblong sliding hole (24) is a stepped hole, and the right end of the sliding connection pin (13) is provided with a flanging.

4. A saw-tooth locking bar device according to claim 1, characterized in that a compression spring (5) is arranged between the upper end of the left sliding bar (1) and the connecting block (22), and the compression spring (5) is sleeved on the connecting screw (4).

5. A saw-tooth locking bar arrangement as claimed in claim 1, characterized in that the bottom of the coupling screw hole (12) is provided with a large hole (14), the diameter of the large hole (14) being larger than the diameter of the coupling screw hole (12), the middle of the coupling screw (4) being provided with a thin shaft (41), the diameter of the thin shaft (41) being smaller than the diameter of the coupling screw (4), the length of the thin shaft (41) being larger than the length of the coupling screw hole (12).