CN212696370U

CN212696370U - Dust-proof box for stress sensor assembly

Info

Publication number: CN212696370U
Application number: CN202022085672.0U
Authority: CN
Inventors: 阳发林; 刘杰文; 苏亮; 易丽蓉; 张阳; 彭彬
Original assignee: Chongqing's Disheng Niusi Measurement And Control Technology Co ltd
Current assignee: Chongqing's Disheng Niusi Measurement And Control Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-03-12
Anticipated expiration: 2030-09-21

Abstract

The utility model provides a dustproof box for a stress sensor assembly, which comprises a box body, a cover body and fixed columns, wherein the box body is provided with positioning holes matched with the fixed columns for use, the cover body is fixedly connected with a plurality of fixed columns, and the fixed columns are inserted on the box body through the positioning holes; at least one fixed column is provided with an accommodating cavity, and a fastening assembly is arranged in the accommodating cavity. The utility model discloses it is better to compare in traditional dustproof box effect of preventing dust.

Description

Dust-proof box for stress sensor assembly

Technical Field

The utility model relates to a stress sensor assembly technical field especially relates to a dust-proof box for stress sensor assembly.

Background

Stress sensor assembly is in the in-service use in-process, and its mainboard is mostly exposed outside, consequently can pile up more dust, need the indefinite clearance. In order to prevent the main board from accumulating excessive dust to affect the operation of the main board, the main board is conventionally arranged in a dustproof box. The dustproof box is mainly composed of a box body, a cover body and fixing columns, and the fixing columns are inserted into the box body through positioning holes to realize connection of the box body and the cover body; but because what the dust-proof box adopted is the plastics material, at the in-process that constantly opens and shuts, receives the influence of fixed column, and the aperture of locating hole can grow gradually to influence its fixed effect in location, make to have great gap between box body and the lid, the dust can enter into the mainboard through this gap in, does not play dirt-proof purpose.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a dustproof box for stress sensor assembly compares in traditional dustproof box effect better.

The utility model provides a dustproof box for a stress sensor assembly, which comprises a box body, a cover body and fixed columns, wherein the box body is provided with positioning holes matched with the fixed columns for use, the cover body is fixedly connected with a plurality of fixed columns, and the fixed columns are inserted on the box body through the positioning holes; at least one fixing column is provided with an accommodating cavity, and a fastening assembly is arranged in the accommodating cavity;

the fastening assembly comprises a pressing head, a sliding rod, a spring, a first limit flange, a second limit flange and an elastic telescopic block, the sliding rod is arranged along the axial direction of the fixed column and is in sliding connection with the inner surface of the fixed column, one end of the sliding rod stops at the end part of the fixed column and is fixedly connected with the pressing head, the other end of the sliding rod penetrates through the first limit flange and the spring in sequence and then extends into the positioning hole, the second limit flange is arranged on the positioning hole and is located between the fixed column and the sliding rod, a fixed cavity of the spring is formed between the first limit flange and the second limit flange, and the elastic telescopic block is arranged on the sliding rod and is matched with a limit groove formed in the fixed column for use.

Furthermore, the end part of the sliding rod extending into the positioning hole is fixedly connected with a telescopic column, the telescopic column is arranged along the axial direction of the sliding rod, and the diameter of the telescopic column is smaller than that of the sliding rod.

Furthermore, a third limiting flange matched with the telescopic column for use is arranged in the positioning hole.

Furthermore, the elastic telescopic blocks and the limiting grooves are arranged in a vertically staggered mode.

Furthermore, the side of the box body is provided with a wire hole, a dustproof cover is movably inserted in the wire hole, the dustproof cover is provided with a plurality of installation through holes, and each installation through hole is provided with an elastic pad with an opening.

Further, a hollow handle is arranged on the cover body, and a brush capable of being drawn out is arranged on the handle.

Further, a waterproof gasket is arranged between the box body and the cover body.

Compared with the prior art, the utility model discloses following beneficial effect has:

firstly, the box body and the cover body are connected through the fixing columns and the positioning holes, so that the box body and the cover body are connected and fixed in a primary mode, and the problem of dust prevention of a stress sensor assembly is solved preliminarily;

secondly, a fastening component is arranged in the fixing column and is matched with the positioning hole for use, so that secondary connection and fixation of the box body and the cover body are realized, connection between the box body and the cover body can be enhanced, and the situation that a gap is formed between the box body and the cover body to prevent the box body and the cover body from failing to achieve good sealing performance and further affecting the dustproof effect is avoided;

thirdly, as the fastening assembly is arranged in the fixed column, other redundant space is not occupied; and only need press the press head can when dismantling the lid, simple structure, convenient operation.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

FIG. 4 is an exploded view of the fastener assembly;

the reference numbers illustrate:

1. a box body; 2. a cover body; 3. fixing a column; 4. positioning holes; 5. a waterproof gasket; 6. a wire hole; 7. a dust cover; 8. mounting a through hole; 9. an elastic pad; 10. a handle; 11. a brush; 12. a receiving cavity; 13. a fastening assembly; 131. a pressing head; 132. a slide bar; 133. a spring; 134. a first stop flange; 135. a second position-defining flange; 136. an elastic expansion block; 137. a limiting groove; 14. a telescopic column; 15. a third position-defining flange.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly understood, the following technical solutions of the present invention are further described with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present embodiment will be further described with reference to fig. 1 to 4.

As shown in fig. 1, a dust-proof box for a stress sensor assembly comprises a box body 1, a cover body 2 and fixing columns 3, wherein the box body 1 is provided with positioning holes 4 matched with the fixing columns 3 for use, the four top corners of the cover body 2 are respectively and fixedly connected with the fixing columns 3, the fixing columns 3 are inserted into the box body 1 through the positioning holes 4, and waterproof gaskets 5 are arranged between the box body 1 and the cover body 2.

As shown in fig. 2, a wire hole 6 is formed on the side surface of the box body 1, a dust cover 7 is movably inserted on the wire hole 6, and a waterproof gasket (not shown) can be arranged between the dust cover 7 and the wire hole 6; have a plurality of circumference array's installation through-hole 8 or the installation through-hole 8 of arranging with other modes on the shield 7, all set up the cushion 9 that has the open-ended on every installation through-hole 8, required electric wire passes installation through-hole 8 through cushion 9 and enters into in the box body 1 and be connected with corresponding components and parts, because cushion 9 has certain deformability, so after the electric wire passed its opening, the outer peripheral face parcel of electric wire is lived to other parts of cushion 9, can effectually prevent that the dust from entering into in the box body 1 through the gap between them, and the same is equitable, installation through-hole 8 that is not used can be stopped up installation through-hole 8 owing to the packing of cushion 9, also can play dirt-proof effect.

As shown in fig. 3, a hollow handle 10 is disposed on the cover 2, a retractable brush 11 is disposed on the handle 10, the handle 10 can be conveniently held, and can also accommodate the brush 11, and the brush 11 is connected with the handle 10 through a sliding slot, so as to achieve the purpose of slidable and retractable.

As shown in fig. 4, each of the four fixing posts 3 has a receiving cavity 12 (in other embodiments, one, two or three fixing posts may also have receiving cavities), a fastening assembly 13 is disposed in the receiving cavity 12, the fastening assembly 13 includes a pressing head 131, a sliding rod 132, a spring 133, a first limiting flange 134, a second limiting flange 135 and an elastic expansion block 136, the sliding rod 132 is disposed along an axial direction of the fixing post 3 and slidably connected to an inner surface of the fixing post 3, one end of the sliding rod 132 rests on an end portion of the fixing post 3 and is fixedly connected to the pressing head 131, the other end of the sliding rod 132 sequentially penetrates through the first limiting flange 134 and the spring 133 and then extends into the positioning hole 4, the inner surface of the first limiting flange 134 is fixedly connected to an outer surface of the sliding rod 132, the outer surface of the first limiting flange 134 is frictionally connected to an inner wall of the receiving cavity 12, the second limiting flange 135 is disposed in the positioning hole 4 and located between the fixing post, the outer peripheral surface of the second limiting flange 135 and the inner peripheral surface of the positioning hole 4 can enable the fixing column 3 to be inserted, so that the fixing column 3 is fixed, the sliding rod 132 can be inserted through the inner peripheral surface of the second limiting flange 135, so that the sliding rod 132 is fixed, the fixing column 3 and the sliding rod 132 can be fixed through the first limiting flange 134 and the second limiting flange 135 respectively, namely the cover body 2 is fixed doubly, gaps among the first limiting flange 134, the second limiting flange 135, the positioning hole 4, the fixing column 3 and the sliding rod 132 are reduced, the fixing effect is prevented from being influenced by outward expansion of the fixing column under long-term use, meanwhile, the gap between the fixing column and the box body 1 can be effectively prevented, and a better dustproof effect is achieved; in addition, a fixed cavity of the spring 133 is formed between the first limit flange 134 and the second limit flange 135, and in the process that the sliding rod 132 slides downwards, the first limit flange 134 and the second limit flange 135 can play a role in compressing and limiting the spring 133, and the elastic expansion block 136 is arranged on the sliding rod 132 and is matched with the limit groove 137 arranged on the fixed column 3 for use.

The fixing column 3 is inserted into the positioning hole 4, the pressing head 131 is pressed, in the process, the sliding rod 132 slides downwards under the action of downward external force, so that the first limit flange 134 and the second limit flange 135 simultaneously extrude the spring 133, the other end of the sliding rod 132 leaks out after the spring 133 is compressed and is inserted into a cavity surrounded by the second limit flange 135, and meanwhile, the elastic telescopic block 136 reaches the limit groove 137 and is embedded into the limit groove 137 to fix the sliding rod 132. The cooperation through spring 133 and elastic expansion piece 136 is used and can stretch into second limit flange 135 with the lower extreme of slide bar 132 in, realizes the fixed purpose of secondary, realizes dual fixed to box body 1 and lid 2, and dustproof effect is better.

The end of the sliding rod 132 extending into the positioning hole 4 is fixedly connected with a telescopic column 14, the telescopic column 14 is arranged along the axial direction of the sliding rod 132, and the diameter of the telescopic column 14 is smaller than that of the sliding rod 132. The positioning hole 4 is provided with a third limit flange 15 which is matched with the telescopic column 14 for use. The third position-limiting flange 15 defines a cavity into which the telescopic column 14 is inserted.

The elastic expansion blocks 136 and the limit grooves 137 are arranged in a vertically staggered manner.

The working principle of the embodiment is as follows: after the stress sensor assembly is installed in the dustproof box, the cover body 2 is covered, the four fixing columns 3 are inserted into the positioning holes 4 at the same time, and the pressing head 131 is pressed down; when the lid body 2 is opened, the elastic expansion piece 136 is pushed and ejected from the stopper groove 137, and then the slide rod 132, the spring 133, and the pressing head 131 are reset.

In the embodiment, the box body 1 is connected with the cover body 2 through the fastening assembly 13, so that the dustproof effect can be effectively prevented from being influenced by a gap between the box body 1 and the cover body 2; and the structure is simple and the operation is convenient.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A dustproof box for a stress sensor assembly comprises a box body (1), a cover body (2) and fixing columns (3), wherein the box body (1) is provided with positioning holes (4) matched with the fixing columns (3) for use, the cover body (2) is fixedly connected with a plurality of fixing columns (3), and the fixing columns (3) are inserted into the box body (1) through the positioning holes (4); the fixing device is characterized in that at least one fixing column (3) is provided with an accommodating cavity (12), and a fastening component (13) is arranged in the accommodating cavity (12);

the fastening assembly (13) comprises a pressing head (131), a sliding rod (132), a spring (133), a first limit flange (134), a second limit flange (135) and an elastic telescopic block (136), the sliding rod (132) is arranged along the axial direction of the fixed column (3) and is in sliding connection with the inner surface of the fixed column (3), one end of the sliding rod (132) stops at the end part of the fixed column (3) and is fixedly connected with the pressing head (131), the other end of the sliding rod (132) sequentially penetrates through the first limit flange (134) and the spring (133) and then extends into the positioning hole (4), the second limit flange (135) is arranged on the positioning hole (4) and is positioned between the fixed column (3) and the sliding rod (132), a fixing cavity of the spring (133) is formed between the first limit flange (134) and the second limit flange (135), and the elastic telescopic block (136) is arranged on the sliding rod (132), and is matched with a limit groove (137) arranged on the fixed column (3) for use.

2. The dust-proof box for the stress sensor assembly according to claim 1, wherein a telescopic column (14) is fixedly connected to the end of the sliding rod (132) extending into the positioning hole (4), the telescopic column (14) is arranged along the axial direction of the sliding rod (132), and the diameter of the telescopic column (14) is smaller than that of the sliding rod (132).

3. A dust box for a stress sensor assembly according to claim 2, wherein the locating hole (4) has a third stop flange (15) therein for cooperation with the telescopic column (14).

4. The dust-proof box for the stress sensor assembly according to claim 1, wherein the elastic expansion blocks (136) and the limiting grooves (137) are arranged in a staggered manner up and down.

5. The dust-proof box for the stress sensor assembly according to claim 1, wherein a wire hole (6) is formed in the side surface of the box body (1), a dust-proof cover (7) is movably inserted into the wire hole (6), a plurality of installation through holes (8) are formed in the dust-proof cover (7), and an elastic pad (9) with an opening is arranged on each installation through hole (8).

6. A dust-proof case for a stress sensor assembly according to any one of claims 1 to 5, wherein a hollow handle (10) is provided on the cover body (2), and the handle (10) is provided with a retractable brush (11).

7. Dust box for a stress sensor assembly according to any of claims 1 to 5, characterized in that a waterproof gasket (5) is provided between the box body (1) and the cover (2).