CN216626387U

CN216626387U - Wedge-shaped locking device

Info

Publication number: CN216626387U
Application number: CN202122589749.2U
Authority: CN
Inventors: 陆钟杰
Original assignee: Ningbo Shengyang Technology Co ltd
Current assignee: Ningbo Shengyang Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-05-27
Anticipated expiration: 2031-10-27

Abstract

The utility model relates to the technical field of installation of a PCB module in an electronic case, in particular to a wedge-shaped locking device which comprises a central shaft, an adjusting screw, a square nut and a base, wherein the base is provided with an installation groove for installing the central shaft and a slot for inserting the PCB module, the installation groove is communicated with the slot, the central shaft is movably arranged in the installation groove, the square nut is fixed at the notch position of the installation groove, the adjusting screw penetrates through the square nut and is positioned on the first end part of the central shaft, and the central shaft is driven to move in the installation groove by rotating the adjusting screw. The utility model adopts the structure arrangement, realizes the effect of clamping, fixing or loosening and disassembling the PCB module inserted in the slot by rotating the adjusting screw to drive the middle shaft to move in the mounting slot, and has simple integral structure and convenient manufacture.

Description

Wedge-shaped locking device

Technical Field

The utility model relates to the technical field of PCB module installation in an electronic case, in particular to a wedge-shaped locking device.

Background

Because the number of the PCB modules in the electronic case is large, in the installation process, a slot position for fixing the PCB module is often processed on the electronic case shell, so that the manufacturing process of the electronic case shell is complex, the labor cost is increased, the PCB module is directly fixed on the electronic case shell, and the installation and the disassembly are very troublesome.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a wedge-shaped locking device which effectively solves the defects in the prior art.

In order to achieve the purpose, the technical scheme applied by the utility model is as follows:

the utility model provides a wedge locking device, includes axis, adjusting screw, square nut and base, is equipped with the slot that is used for installing centraxonial mounting groove and is used for pegging graft PCB module on the base, and the mounting groove is linked together with the slot, and in the mounting groove was located to axis mobilizable, the square nut was fixed in the notch position of mounting groove, and adjusting screw passed square nut after, was located centraxonial first end tip, through rotating adjusting screw drive axis displacement in the mounting groove.

According to the scheme, the mounting groove and the slot are vertically arranged on the base, the triangular groove portion is arranged on the inner wall of the mounting groove, the triangular protruding portion is arranged on the middle shaft, and the outer side of the protruding portion is attached to the outer side of the groove portion and abutted to the outer side of the groove portion.

According to the scheme, the fixing plate is fixed on the inner wall of the first end of the center shaft, the first bending portion is arranged on the first end portion of the fixing plate, and the first bending portion abuts against the adjusting screw located on the first end portion of the center shaft.

According to the scheme, the notch position of the slot is provided with the flanging part which is convenient for drawing the base out of the electronic case and the inclined plane gap which is convenient for drawing the PCB module out of the base.

According to the scheme, the middle of the adjusting screw is provided with an external thread in threaded connection with the square nut, the end of the adjusting screw is provided with a clamping groove used for being in positioning connection with the first end of the center shaft, the first end of the center shaft is provided with a second bending part, the second bending part is provided with a notch, and the notch is internally provided with a limiting hole in which the clamping groove corresponds to the clamping position.

According to the scheme, the base is provided with an installation hole position used for installing the base in the electronic case.

The utility model has the beneficial effects that:

the utility model adopts the structure arrangement, when the PCB module is installed, the PCB module is inserted in the slot, the central shaft is driven to move rightwards by rotating the adjusting screw inwards, when the central shaft moves rightwards, because the outer side of the convex part on the central shaft is attached and abutted with the outer side of the concave part on the base, the central shaft generates radial downward displacement in the moving process, and further plays a role in clamping and fixing the PCB module in the slot (namely the central shaft and the bottom wall of the slot clamp and fix the PCB module), when the PCB module is disassembled, the central shaft is driven to move leftwards by rotating the adjusting screw outwards to generate radial upward displacement, and further plays a role in separating the PCB module in the slot, the installation and the disassembly are very convenient, and after the wedge-shaped locking device is adopted, the requirements on the manufacture of the shell of the electronic cabinet are lower, the electronic cabinet can be installed and used as long as enough space is available, no slot position is required to be additionally processed on the shell of the electronic cabinet, the wedge-shaped locking device saves manpower, and is simple in overall structure and convenient to manufacture.

Drawings

FIG. 1 is a diagram illustrating an overall structure of the first embodiment;

FIG. 2 is a sectional view of the whole structure in the first embodiment;

FIG. 3 is an exploded view of the overall structure in accordance with one embodiment;

FIG. 4 is a diagram of a base structure in accordance with an embodiment;

FIG. 5 is an assembly view of the fixing plate and the middle shaft according to the first embodiment;

fig. 6 is an overall configuration diagram in the second embodiment.

1. A fixing plate; 2. a middle shaft; 3. an adjusting screw; 4. a square nut; 5. a base; 6. a slot; 7. flanging part; 8. a bevel gap; 9. mounting hole sites; 10. a boss portion; 11. a groove part; 12. mounting grooves; 13. grooving; 14. a limiting hole; 15. a clamping groove; 16. a first bending part; 17. a second bending part;

Detailed Description

The technical solution of the present invention is described below with reference to the accompanying drawings and examples.

The first embodiment is as follows:

as shown in fig. 1 to 5, the wedge-shaped locking device of the present invention includes a central shaft 2, an adjusting screw 3, a square nut 4, and a base 5, wherein the base 5 is provided with a mounting groove 12 for mounting the central shaft 2 and a slot 6 for inserting a PCB module, the mounting groove 12 is communicated with the slot 6, the central shaft 2 is movably disposed in the mounting groove 12, the square nut 4 is welded at a notch position of the mounting groove 12, the adjusting screw 3 is positioned at a first end of the central shaft 2 after passing through the square nut 4, and the central shaft 2 is driven to move in the mounting groove 12 by rotating the adjusting screw 3. The above constitutes the basic structure of the present invention.

In this embodiment, the mounting groove 12 and the slot 6 are vertically disposed on the base 5, a triangular groove 11 is disposed on an inner wall of the mounting groove 12, a triangular protrusion 10 is disposed on the middle shaft 2, and an outer side of the protrusion 10 is attached to and abutted against an outer side of the groove 11. By adopting the structure, the outer side of the protruding part 10 is attached to and abutted against the outer side of the groove part 11, so that the central shaft 2 generates radial displacement in the moving process, and the PCB module is clamped or loosened.

In practical application, beryllium copper is preferably selected for the middle shaft 2, the base 5 and the square nut 4, the hardness of the beryllium copper is 390HV after heat treatment, the beryllium copper can provide enough strength and certain elasticity, the retaining force of 220N can be provided, the weight is light, and the whole structure is lighter on the premise of meeting the use requirement.

In this embodiment, the fixed plate 1 is welded to the inner wall of the first end of the center shaft 2, the first end portion of the fixed plate 1 is provided with a first bending portion 16, and the first bending portion 16 abuts against the adjusting screw 3 positioned at the first end portion of the center shaft 2. With the adoption of the structure, the fixing plate 1 is used for limiting the adjusting screw 3.

In this embodiment, the slot 6 is provided with a flanging portion 7 for facilitating the base 5 to be drawn out from the electronic chassis and a bevel notch 8 for facilitating the PCB module to be drawn out from the base 5. By adopting the structure, the installation and the disassembly of the PCB module and the installation and the disassembly of the base 5 are very convenient. Meanwhile, the guide function of preventing wrong insertion can be achieved through the inclined plane notch 8.

In this embodiment, the middle of the adjusting screw 3 is provided with an external thread in threaded connection with the square nut 4, the end of the adjusting screw 3 is provided with a clamping groove 15 for positioning connection with the first end of the center shaft 2, the first end of the center shaft 2 is provided with a second bending portion 17, the second bending portion 17 is provided with a slot 13, and the slot 13 is provided with a limiting hole 14 in which clamping is corresponding to the clamping groove 15. By adopting the structure, the adjusting screw 3 can move outwards or inwards relative to the square nut 4 by rotating, the clamping groove 15 is arranged at the end part of the adjusting screw 3, the open groove 13 is arranged at the first end part of the middle shaft 2, and the limiting hole 14 is arranged in the open groove 13, so that the assembly between the middle shaft 2 and the adjusting screw 3 is convenient.

In this embodiment, the base 5 is provided with an installation hole 9 for installing the base 5 in the electronic chassis.

The utility model adopts the structure arrangement, and the working principle is as follows: when the PCB module is installed, the PCB module is inserted in the slot 6, the central shaft 2 is driven to move rightwards by rotating the adjusting screw 3 inwards, and in the process of moving rightwards, because the outer side of the convex part 10 on the central shaft 2 is abutted with the outer side of the groove part 11 on the base 5, the central shaft 2 generates radial downward displacement in the moving process, and further plays a role in clamping and fixing the PCB module in the slot 6 (namely the central shaft 2 and the bottom wall of the slot 6 clamp and fix the PCB module), when the PCB module is disassembled, the central shaft 2 is driven to move leftwards by rotating the adjusting screw 3 outwards to generate radial upward displacement, and further plays a role in separating the PCB module in the slot 6, the installation and the disassembly are very convenient, and after the wedge-shaped locking device is adopted, the manufacturing requirement on the shell of an electronic machine is lower, and the installation and the use can be realized as long as enough space exists, the wedge-shaped locking device has the advantages that a groove position does not need to be additionally machined on the shell of the electronic case, the labor is saved, the overall structure is simple, and the wedge-shaped locking device is convenient to manufacture.

Example two:

as shown in fig. 6, the second embodiment is different from the first embodiment in that: the mounting groove 12 of the first embodiment is on the upper side of the base 5, the slot 6 is on the lower side of the base 5, the mounting groove 12 and the notch of the slot 6 are on the left end, while the mounting groove 12 of the second embodiment is on the lower side of the base 5, the slot 6 is on the upper side of the base 5, the mounting groove 12 and the notch of the slot 6 are on the right end, and other structures and working principles are the same as those of the first embodiment and will not be described repeatedly.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention.

Claims

1. A wedge locking device characterized by: including axis (2), adjusting screw (3), square nut (4) and base (5), be equipped with mounting groove (12) that are used for installing axis (2) and slot (6) that are used for pegging graft the PCB module on base (5), mounting groove (12) are linked together with slot (6), axis (2) movably locates in mounting groove (12), square nut (4) are fixed in the notch position of mounting groove (12), adjusting screw (3) pass square nut (4) after, are located on the first end tip of axis (2), through rotating adjusting screw (3) drive axis (2) displacement in mounting groove (12).

2. A wedge locking device according to claim 1, wherein: the mounting groove (12) and the slot (6) are arranged on the base (5) in an up-down mode, the inner wall of the mounting groove (12) is provided with triangular groove portions (11), the middle shaft (2) is provided with triangular protruding portions (10), and the outer side of each protruding portion (10) is attached to the outer side of each groove portion (11) in an abutting mode.

3. A wedge locking device according to claim 1, wherein: the fixing plate is characterized in that a fixing plate (1) is fixed on the inner wall of the first end of the middle shaft (2), a first bending part (16) is arranged on the end part of the first end of the fixing plate (1), and the first bending part (16) abuts against an adjusting screw (3) positioned on the end part of the first end of the middle shaft (2).

4. A wedge locking device according to claim 1, wherein: the notch position of the slot (6) is provided with a flanging part (7) which is convenient for drawing the base (5) out of the electronic case and an inclined plane notch (8) which is convenient for drawing the PCB module out of the base (5).

5. A wedge locking device according to claim 1, wherein: the middle part of the adjusting screw (3) is provided with an external thread which is in threaded connection with the square nut (4), the end part of the adjusting screw (3) is provided with a clamping groove (15) which is used for being connected with the first end part of the center shaft (2) in a positioning way, the first end part of the center shaft (2) is provided with a bent part II (17), the bent part II (17) is provided with a notch (13), and the notch (13) is internally provided with a limit hole (14) which corresponds to clamping with the clamping groove (15).

6. A wedge locking device according to claim 1, wherein: and the base (5) is provided with an installation hole (9) for installing the base (5) in the electronic case.