CN217116697U

CN217116697U - Tooth-shaped PCB locking clamp

Info

Publication number: CN217116697U
Application number: CN202220706743.0U
Authority: CN
Inventors: 刘奇
Original assignee: Shaanxi Maikun Science And Technology Co ltd
Current assignee: Shaanxi Maikun Science And Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-08-02
Anticipated expiration: 2032-03-29

Abstract

The utility model belongs to the technical field of aerospace and aviation PCB locking, and relates to a toothed PCB locking clamp, which comprises an upper long piece; the lower long piece is positioned at the lower side of the upper long piece, an overlapping section is arranged between the upper long piece and the lower long piece, and a clamping section is arranged on the overlapping section; the front short piece is positioned on one side of the lower long piece and is matched with the lower long piece; the screw rod is sequentially arranged on the front short piece, the lower long piece and the upper long piece in a penetrating way and is in threaded connection with the upper long piece. The utility model discloses can solve the clamping-force that current PCB board locking clamp was pressed from both sides and be low, and the poor problem of heat conductivity, its profile of tooth structure furthest has improved its heat-transferring's surface area, has improved its heat conductivity and clamping-force greatly, even also can provide higher clamp force in having the application of high impact and vibrations requirement, is worth promoting.

Description

Tooth-shaped PCB locking clamp

Technical Field

The utility model belongs to the technical field of space flight and aviation PCB board locking, concretely relates to profile of tooth PCB board locking clamp.

Background

In the aerospace field, PCB board locking clamp is used extensively, and the user state that current PCB board locking clamp is shown in figure 8, and the PCB board is located quick-witted incasement, and a pair of butt edge of PCB board is provided with PCB board locking clamp respectively, utilizes PCB board locking clamp to be connected fixedly PCB board and quick-witted case. The conventional PCB locking clip has a structure as shown in fig. 5, 6 and 7, and includes a screw 101, a spring 102, a bushing 103, a resilient washer 104, a flat washer 105, a first wedge 106, a second wedge 107, a third wedge 108, a core 109, a fourth wedge 1010, a fifth wedge 1011 and a roll pin 1012. The screw 101 is connected with the core 109 through threads, the spring 102, the bushing 103, the elastic washer 104 and the flat washer 105 are sleeved on the screw 101, and the first wedge block 106, the second wedge block 107, the third wedge block 108, the fourth wedge block 1010 and the fifth wedge block 1011 are mutually clamped with the core 109 and are fixed through the rolling pin 1012. In operation, the screw 101 is tightened by the internal hexagonal wrench, and the screw 101 is locked by pressing the first wedge block 106, the second wedge block 107, the third wedge block 108, the fourth wedge block 1010 and the fifth wedge block 1011 as shown in fig. 7. When disassembly is required, the PCB can be drawn out by reversely loosening the screws 101 as shown in FIG. 5. In the structure, because the contact surface between each wedge block and the core 109 is small, the provided clamping force and locking force are small, and the situation that the wedge block and the core are clamped and stuck easily occurs in unlocking after the wedge block and the core are subjected to large vibration during locking, so that the PCB cannot be pulled out.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a tooth-shaped PCB locking clip to solve the above mentioned technical problems.

The technical scheme of the utility model is that:

a toothed PCB board locking clip comprising:

an upper long piece;

the lower long piece is positioned at the lower side of the upper long piece, an overlapping section is arranged between the upper long piece and the lower long piece, and a clamping section is arranged on the overlapping section;

the front short piece is positioned on one side of the lower long piece and is matched with the lower long piece;

and the screw rod sequentially penetrates through the front short piece, the lower long piece and the upper long piece and is in threaded connection with the upper long piece.

Preferably, the engaging section is of a toothed structure.

Preferably, the threaded connection between the screw and the upper long piece is realized through a steel wire thread insert which is sleeved on the upper long piece.

Preferably, a limiting assembly is further arranged between the upper long piece and the lower long piece.

Preferably, the limiting assembly comprises a pin penetrating through the upper long piece and the lower long piece.

Preferably, a first anti-slip member is provided between the pin and the upper elongate member.

Preferably, the first anti-slip member comprises a second washer, and the second washer is sleeved on the pin.

Preferably, a second anti-slip member is disposed between the screw and the front short piece.

Preferably, the second anti-slip member includes a first washer, and the first washer is fitted over the screw.

Compared with the prior art, the utility model provides a pair of profile of tooth PCB board locking clamp can solve above-mentioned clamping-force and hang down, and the poor problem of heat conductivity, and its profile of tooth structure furthest has improved its surface area of heat transfer, has improved its heat conductivity and clamping-force greatly, even also can provide higher clamp force in having the application of high impact and vibrations requirement, is worth promoting.

Drawings

Fig. 1 is a schematic view of the main structure of the present invention;

fig. 2 is a schematic diagram of a default state of the present invention;

fig. 3 is a schematic view of the working state of the present invention;

FIG. 4 is a comparison of the technical effects of the present invention;

FIG. 5 is a schematic structural view of a conventional PCB locking clip;

fig. 6 is a schematic structural view of a conventional PCB board locking clip in a free state;

fig. 7 is a schematic structural view of a conventional PCB board locking clip in a locked state;

fig. 8 is a schematic view of a conventional PCB board locking clip in a use state.

Reference numerals:

1. a screw; 2. a first gasket; 3. a front short piece; 4. a steel wire thread insert; 5. an upper long piece; 6. a lower long piece; 7. a second gasket; 8. a pin; 101. a screw; 102. a spring; 103. a bushing; 104. an elastic washer; 105. a flat washer; 106. a first wedge block; 107. a second wedge block; 108. a third wedge; 109. a core; 1010. a fourth wedge block; 1011. a fifth wedge block; 1012. and (6) rolling the pin.

Detailed Description

The utility model provides a profile of tooth PCB board locking clamp, the following schematic diagram that combines fig. 1 to fig. 4 is right the utility model discloses explain.

Example 1

A tooth-shaped PCB locking clamp is shown in figure 1, and comprises a screw rod 1, a first gasket 2, a front short piece 3, an upper long piece 5, a lower long piece 6, a steel wire thread insert 4, a pin 8 and a second gasket 7. The lower long piece 6 is positioned at the lower side of the upper long piece 5, an overlapping section is arranged between the upper long piece 5 and the lower long piece 6, and a clamping section is arranged on the overlapping section; more specifically, the engaging section is of a tooth-shaped structure.

Wherein, one side of the lower long piece 6 is provided with a front short piece 3, and the front short piece 3 is matched with the lower long piece 6.

The screw rod 1 is sequentially arranged on the front short piece 3, the lower long piece 6 and the upper long piece 5 in a penetrating way and is in threaded connection with the upper long piece 5. More specifically, the threaded connection between the screw rod 1 and the upper long piece 5 is realized through a steel wire thread insert 4, and the steel wire thread insert 4 is sleeved on the upper long piece 5.

More specifically, a limiting assembly is arranged between the upper long piece 5 and the lower long piece 6.

Further specifically, spacing subassembly is including wearing to establish at last long 5 and the pin 8 on the long 6 down, is provided with first anti-skidding component between pin 8 and the last long 5, and first anti-skidding component includes second packing ring 7, and second packing ring 7 suit is on pin 8 for antiskid.

Further, a second anti-skid component is arranged between the screw rod 1 and the front short piece 3, the second anti-skid component comprises a first gasket 2, and the first gasket 2 is sleeved on the screw rod 1.

As shown in fig. 1, 2 and 3, the stainless steel wire thread insert 4 mounted on the upper long member 5 can provide a higher locking force for the tooth-shaped PCB locking clip. The screw rod 1 respectively connects the first gasket 2, the front short piece 3, the upper long piece 5, the lower long piece 6 and the wire thread insert 4, and the upper long piece 5 and the lower long piece 6 are connected through the pin 8, so that the relative displacement of the upper long piece 5 and the lower long piece 6 is limited and the separation and the disassembly of the upper long piece 5 and the lower long piece 6 are prevented.

In the use, use suitable moment through the moment spanner and lock screw rod 1, with the moment of torsion transmission before short 3, go up long 5 and down long 6 on, provide the clamp force, the pin 8 can restrict the motion between the section bar in the U type inslot of long 6 down for the clamping of profile of tooth PCB board is more reliable and stable.

To the utility model provides a contrast has been done to the clamp force that profile of tooth PCB board locking was pressed from both sides and the clamp force of current product, sees the contrast picture of the closure effect in figure 4 for details, and contrastive analysis is visible, the utility model provides a profile of tooth PCB board locking is pressed from both sides the clamp force very strong, and the closure effect that it can provide is better.

The utility model provides a pair of profile of tooth PCB board locking clamp can solve above-mentioned clamping-force and hang down, and the poor problem of heat conductivity, and its profile of tooth structure furthest has improved its heat-transferring's surface area, has improved its heat conductivity and clamping-force greatly, even also can provide higher clamp force in having the application of high impact and vibrations requirement, is worth promoting.

The above disclosure is only for the preferred embodiments of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. The utility model provides a profile of tooth PCB board locking clip which characterized in that includes:

an upper elongated member (5);

the lower long piece (6) is positioned at the lower side of the upper long piece (5), an overlapping section is arranged between the upper long piece (5) and the lower long piece (6), and a clamping section is arranged on the overlapping section;

the front short piece (3) is positioned on one side of the lower long piece (6) and is matched with the lower long piece (6);

the screw (1) sequentially penetrates through the front short piece (3), the lower long piece (6) and the upper long piece (5) and is in threaded connection with the upper long piece (5).

2. The toothed PCB board locking clip of claim 1, wherein the engaging section is a toothed structure.

3. The toothed PCB board locking clip according to claim 1, wherein the screw (1) is screwed to the upper long member (5) by a wire thread insert (4), and the wire thread insert (4) is fitted on the upper long member (5).

4. The toothed PCB board locking clip according to claim 1, wherein a position limiting component is further provided between the upper long member (5) and the lower long member (6).

5. The toothed PCB board locking clip according to claim 4, wherein the limiting component comprises a pin (8) passing through the upper long member (5) and the lower long member (6).

6. A toothed PCB plate locking clip according to claim 5, characterized in that a first anti-slip means is provided between the pin (8) and the upper elongated member (5).

7. A toothed PCB board locking clip according to claim 6, characterized in that the first anti-slip means comprises a second washer (7), the second washer (7) being fitted over the pin (8).

8. The toothed PCB board locking clip according to claim 1, wherein a second anti-slip member is provided between the screw (1) and the front short piece (3).

9. The toothed PCB board locking clip according to claim 8, wherein the second anti-slip member comprises a first washer (2), the first washer (2) being fitted over the screw (1).