CN212660447U - Anti-loose assembly system for printed board - Google Patents
Anti-loose assembly system for printed board Download PDFInfo
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- CN212660447U CN212660447U CN202021268196.XU CN202021268196U CN212660447U CN 212660447 U CN212660447 U CN 212660447U CN 202021268196 U CN202021268196 U CN 202021268196U CN 212660447 U CN212660447 U CN 212660447U
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- screw
- locking
- gasket
- printed board
- loosening
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Abstract
The utility model discloses a locking assembly system of printed board, including casing, printed board, screw and locking gasket, the casing inboard has a plurality of installation steps, and the printed board is installed on the installation step of casing inboard through the screw cooperation, and the locking gasket is installed in the cooperation between printed board and the screw; the printed plate edge and the inner side of the shell are provided with an assembly gap, the anti-loosening gasket comprises a gasket body and an anti-loosening positioning clamp cone, the anti-loosening positioning clamp cone is tightly matched and assembled in the assembly gap, and the top of the gasket body is provided with an anti-loosening matching sawtooth surface matched with a nut of a screw. The utility model discloses locking gasket's locking locator card awl is hugged closely all the time in shells inner wall to retrain the fit-up gap between printing board and casing, the printing board passes through the screw locking and installs behind the casing, and the locking cooperation sawtooth surface of gasket body and the nut of screw compress tightly the cooperation, reaches the not hard up purpose of screw through locking layer upon layer like this, has improved printing board erection joint's reliability.
Description
Technical Field
The utility model relates to a printing board assembly technical field especially relates to a locking assembly system of printing board.
Background
The printed board is generally installed inside the casing of the device, and is generally fixed in the casing through screws, and the printed board also needs to be designed to be grounded, and is also grounded through a conductive component inside the casing or the casing. When the printed board is fixed with the shell and grounded, in order to prevent the screw from loosening, a flat pad, an elastic pad or a thread fastening glue mode is usually adopted for fastening, but the loosening prevention mode can easily loosen after long-time use, and meanwhile, a special design is not provided for preventing the screw from loosening and withdrawing, so that the screw can loosen under the action of external force and withdraw from the fastening mode, and particularly, vibration or movement exists when some equipment works. Furthermore, loosening of the screw can cause poor grounding of the printed board, and poor grounding performance or even failure can occur.
SUMMERY OF THE UTILITY MODEL
Weak point to prior art exists, the utility model aims to provide a locking assembly system of printing board, locking locator card awl of locking gasket is hugged closely all the time in shells inner wall to retrain in the fit-up gap between printing board and casing, the printing board passes through the screw locking and installs behind the casing, the locking cooperation serrated surface of gasket body and the nut compressed tightly of screw cooperate, reach the not hard up purpose of screw through locking layer upon layer like this, improved the reliability of printing board erection joint.
The purpose of the utility model is realized through the following technical scheme:
the anti-loose assembly system for the printed board comprises a shell, the printed board, a screw and an anti-loose gasket, wherein a plurality of installation steps are arranged on the inner side of the shell, the printed board is installed on the installation steps on the inner side of the shell in a matched mode through the screw, and the anti-loose gasket is installed between the printed board and the screw in a matched mode.
In order to better realize the utility model, an assembly gap is arranged between the edge of the printed plate and the inner side of the shell; the anti-loosening gasket comprises a gasket body and an anti-loosening positioning clamp cone, the anti-loosening positioning clamp cone is fixed to the bottom of the gasket body, the anti-loosening positioning clamp cone is tightly matched and assembled in an assembling gap, a screw cap is arranged on the screw, a screw blind hole matched with the screw is formed in the middle of the gasket body, and the top of the gasket body is provided with an anti-loosening matching sawtooth surface matched with the screw cap of the screw.
Preferably, the side part of the gasket body of the anti-loosening gasket is fixed with an anti-loosening positioning beam, and the anti-loosening positioning clamping cone is fixed at the bottom of one end of the anti-loosening positioning beam.
Preferably, the anti-loose matching serrated surface of the gasket body is formed by sequentially connecting a plurality of inclined surface steps into a circular ring shape.
Preferably, the bottom of the screw cap of the screw is provided with engaging teeth matched with the anti-loose matching serrated surface of the gasket body.
Preferably, the inclined steps of the anti-loose fit sawtooth surface are provided with inclined surface slopes, and the slope of the inclined surface slopes of all the inclined surface steps is 15 degrees.
Preferably, the gasket body, the anti-loosening positioning beam and the anti-loosening positioning clamping cone of the anti-loosening gasket are manufactured in an integrated forming mode.
Preferably, the mounting step is provided with a threaded hole matched with the screw.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
(1) the utility model discloses locking gasket's locking locator card awl is hugged closely all the time in shells inner wall to retrain the fit-up gap between printing board and casing, the printing board passes through the screw locking and installs behind the casing, and the locking cooperation sawtooth surface of gasket body and the nut of screw compress tightly the cooperation, reaches the not hard up purpose of screw through locking layer upon layer like this, has improved printing board erection joint's reliability.
(2) The utility model discloses the inseparable interlock of the nut of locking cooperation serrated surface and screw of gasket body, the gasket body is whole by the spacing locking of locking locator card awl along with locking gasket simultaneously, can prevent effectively that the gasket body from along with the defect that the screw withdrawed from in the lump, and overall structure is ingenious, has improved the reliability of printing board ground connection.
Drawings
FIG. 1 is a schematic structural view of the anti-loosening gasket of the present invention;
fig. 2 is a schematic structural view of the printed board after anti-loose assembly;
FIG. 3 is a schematic view of a portion of the structure of FIG. 1;
fig. 4 is the utility model discloses the structural schematic of the locking assembly of printing board.
Wherein, the names corresponding to the reference numbers in the drawings are:
the anti-loose positioning clamp comprises a shell 1, a printed board 2, a mounting step 3, a threaded hole 4, a screw 5, a locking gasket 6, a gasket body 61, a locking matching serrated surface 611, a screw blind hole 612, a locking positioning beam 62 and a locking positioning clamping cone 63.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
examples
As shown in fig. 1 to 4, the anti-loose assembly system for the printed boards comprises a shell 1, a printed board 2, a screw 5 and an anti-loose gasket 6, wherein a plurality of mounting steps 3 are arranged on the inner side of the shell 1, the printed board 2 is mounted on the mounting steps 3 on the inner side of the shell 1 in a matching manner through the screw 5, and threaded holes 4 matched with the screw 5 are formed in the mounting steps 3; meanwhile, a grounding conductive wire or a grounding conductive mechanism which is connected with the printed board 2 in a matched manner can be arranged on the installation step 3, so that the grounding operation of the printed board 2 can be conveniently realized, specifically, a grounding part can be arranged at the bottom of the printed board 2, a grounding matching part which is matched with the grounding part of the printed board 2 is arranged at the top of the installation step 3, and meanwhile, a grounding conductive wire is arranged inside the installation step 3, so that the direct grounding of the printed board 2 or the grounding through the shell 1 can be realized. And a locking gasket 6 is arranged between the printed board 2 and the screw 5 in a matching way. As shown in fig. 2, the two corresponding sides inside the casing 1 of the utility model are respectively provided with an installation step 3, and the printed board 2 is kept flat on the installation steps 3 of the two sides. An assembly gap is formed between the edge of the printed board 2 and the inner side of the casing 1, and an assembly gap is formed between each of the two sides of the printed board 2 of the embodiment and the inner side of the casing 1.
As shown in fig. 1, the anti-loose gasket 6 includes a gasket body 61, an anti-loose positioning beam 62 and an anti-loose positioning fastener cone 63, the anti-loose positioning beam 62 is fixed on the side portion of the gasket body 61 of the anti-loose gasket 6, and the anti-loose positioning fastener cone 63 is fixed on the bottom of one end of the anti-loose positioning beam 62. Preferably, the gasket body 61, the anti-loosening positioning beam 62 and the anti-loosening positioning chuck cone 63 of the anti-loosening gasket 6 are manufactured in an integrated manner. During assembly, the anti-loose positioning clamping cone 63 is tightly fitted in the assembly gap, the screw 5 has a nut, the middle part of the gasket body 61 is provided with a screw blind hole 612 matched with the screw 5, and the top of the gasket body 61 has an anti-loose matched serrated surface 611 matched with the nut of the screw 5.
The anti-loose sawtooth surface 611 of the gasket body 61 is formed by sequentially connecting a plurality of inclined surface steps into a circular ring shape. The inclined steps of the anti-loose fit serrated surface 611 have inclined surface slopes, and the slope of the inclined surface slopes of all the inclined surface steps is 15 °.
Preferably, the bottom of the nut of the screw 5 of this embodiment has engaging teeth that are engaged with the locking mating serrated surface 611 of the gasket body 61, and the engaging teeth of the nut and the inclined steps on the locking mating serrated surface 611 of the gasket body 61 are correspondingly engaged with each other, so as to prevent the nut of the screw 5 and the gasket body 61 from moving relative to each other, and achieve the purpose of enhancing the prevention of the screw 5 from loosening and withdrawing.
As shown in fig. 2, the utility model discloses the inside two corresponding sides of casing 1 are equipped with an installation step 3 respectively, and the printing board 2 of keeping flat on the installation step 3 of both sides, 2 both sides edges of printing board respectively with the casing 1 inboard between be formed with assembly gap. During installation, as shown in fig. 4, firstly, each anti-loose gasket 6 and each threaded hole 4 of the installation step 3 are installed in a one-to-one correspondence manner, and the anti-loose positioning clamping cone 63 of the anti-loose gasket 6 is correspondingly inserted into the assembly gap at the position, the anti-loose positioning beam 62 plays a role in switching the anti-loose positioning clamping cone 63 and the gasket body 61, and meanwhile, when the anti-loose positioning clamping cone 63 is inserted and installed, the anti-loose positioning clamping cone 63 can be vertically or non-vertically adapted to the inner side of the shell 1 to smoothly realize insertion and connection; and then, installing a screw 5, and enabling the screw 5 to penetrate through the screw blind hole 612 of the gasket body 61 and be in threaded connection with the threaded hole 4 on the installation step 3 correspondingly, so as to achieve the purpose of connecting and fixing the printed board 2. The nut of screw 5 compresses tightly the locking cooperation sawtooth surface 611 at gasket body 61 top, the nut bottom of screw 5 can be with locking cooperation sawtooth surface 611 extrusion indentation, the frictional force that the inclined plane step of locking cooperation sawtooth surface 611 can increase the nut of screw 5 and withdraw from, the locator card awl 63 tight fit of locking gasket 6 is pegged graft in joining in marriage the clearance simultaneously, locking gasket 6 just also can not take place to rotate, can give the great anti-withdrawal power of screw 5, gasket body 61 can not rotate along with screw 5 in the lump, can play the fine loosening action of screw 5 in the above summary. The bottom of the nut of the screw 5 of this embodiment may further have engaging teeth, and the engaging teeth of the nut and the inclined steps on the anti-loose sawtooth surface 611 of the gasket body 61 are engaged with each other correspondingly, so as to prevent the nut of the screw 5 and the gasket body 61 from moving relative to each other, and to achieve the purpose of strengthening and preventing the screw 5 from loosening and withdrawing. The anti-loose fit sawtooth surface 611 of the gasket body 61 of the utility model is sequentially connected into a circular ring shape by a plurality of inclined surface steps, the inclined surface steps of the anti-loose fit sawtooth surface 611 have inclined surface slopes, the slopes of the inclined surface slopes of all the inclined surface steps are 15 degrees and face one direction, thus the anti-loose fit sawtooth surface 611 sequentially forms sawteeth facing one direction by the inclined surface steps, for example, the anti-loose fit sawtooth surface 611 forms a plurality of sawteeth arranged in a clockwise direction, the screwing operation of the screw 5 is along the anti-loose fit sawtooth surface 611, once the screw 5 is screwed, each sawtooth of the anti-loose fit sawtooth surface 611 can give out resistance to the screw 5, the screw 5 is prevented from withdrawing, and because the anti-loose positioning clamping cone 63 of the anti-loose gasket 6 is correspondingly inserted in the assembly gap at the position, the anti-loose gasket 6 is integrally subjected to the positioning force of the positioning clamping, like this the gasket body 61 of locking gasket 6 also can receive locking locator card awl 63 location force effect can not be along with screw 5 withdrawing movement, the utility model discloses a locking reaches the not hard up purpose of screw 5 layer upon layer, has improved the reliability of printing board 2 erection joint.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a locking assembly system of printing board, includes casing (1) and printing board (2), its characterized in that: still include screw (5) and check washer (6), casing (1) inboard has a plurality of installation step (3), printing board (2) are installed on the installation step (3) of casing (1) inboard through screw (5) cooperation, check washer (6) are installed in the cooperation between printing board (2) and screw (5).
2. The printed board looseness prevention assembling system according to claim 1, wherein: an assembly gap is formed between the edge of the printed board (2) and the inner side of the shell (1); locking gasket (6) are including gasket body (61) and locking locator card awl (63), locking locator card awl (63) are fixed in gasket body (61) bottom, locking locator card awl (63) closely cooperate the assembly in assembly gap, screw (5) have the nut, open at gasket body (61) middle part has screw blind hole (612) with screw (5) matched with, gasket body (61) top has the nut matched with locking cooperation sawtooth surface (611) with screw (5).
3. The printed board looseness prevention assembling system according to claim 2, wherein: the anti-loosening positioning device is characterized in that an anti-loosening positioning cross beam (62) is fixed on the side portion of a gasket body (61) of the anti-loosening gasket (6), and an anti-loosening positioning clamping cone (63) is fixed at the bottom of one end of the anti-loosening positioning cross beam (62).
4. A printed board looseness prevention assembling system according to claim 2 or 3, wherein: the anti-loose matched sawtooth surface (611) of the gasket body (61) is formed by sequentially connecting a plurality of inclined surface steps into a circular ring shape.
5. The printed board looseness prevention assembling system according to claim 2, wherein: the bottom of the screw cap of the screw (5) is provided with meshing teeth matched with the anti-loose matching sawtooth surface (611) of the gasket body (61).
6. The printed board looseness prevention assembling system according to claim 4, wherein: the inclined steps of the anti-loose matched sawtooth surface (611) are provided with inclined surface slopes, and the slope of the inclined surface slopes of all the inclined surface steps is 15 degrees.
7. A printed board looseness prevention assembling system according to claim 3, wherein: the anti-loosening gasket comprises a gasket body (61), an anti-loosening positioning beam (62) and an anti-loosening positioning clamping cone (63) of the anti-loosening gasket (6) which are integrally formed.
8. The printed board looseness prevention assembling system according to claim 1 or 2, wherein: and the mounting step (3) is provided with a threaded hole (4) matched with the screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021268196.XU CN212660447U (en) | 2020-07-02 | 2020-07-02 | Anti-loose assembly system for printed board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021268196.XU CN212660447U (en) | 2020-07-02 | 2020-07-02 | Anti-loose assembly system for printed board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212660447U true CN212660447U (en) | 2021-03-05 |
Family
ID=74759974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021268196.XU Active CN212660447U (en) | 2020-07-02 | 2020-07-02 | Anti-loose assembly system for printed board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212660447U (en) |
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2020
- 2020-07-02 CN CN202021268196.XU patent/CN212660447U/en active Active
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