CN212482822U

CN212482822U - Vacuum box sealing device

Info

Publication number: CN212482822U
Application number: CN202021644825.4U
Authority: CN
Inventors: 张磊
Original assignee: Hubei Ruicheng Vacuum Technology Co ltd
Current assignee: Hubei Ruicheng Vacuum Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-02-05
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a vacuum box body sealing device relates to the field of leak hunting vacuum box, has solved the mode of exerting pressure and has made the cavity warp easily, the sealing strip is impaired and lead to the more and more poor technical problem of leakproofness of box. The sealing device comprises an upper cavity and a lower cavity, wherein an upper bending body is arranged at the end part of the upper cavity, a lower bending body is arranged at the end part of the lower cavity, and a sealing belt is laid on the lower bending body; the end part of the upper bending body is provided with a first upper bending part, and the lower end of the first upper bending part is provided with a first electromagnet; the side wall of the lower cavity is provided with a second electromagnet through a positioning block; an elastic supporting component is arranged between the lower bending body and the lower cavity. The utility model discloses a suction of electro-magnet provides the pressfitting power for the sealed of epicoele and cavity of resorption within a definite time, makes the vacuum box sealed, has avoided making the cavity warp, the impaired problem of sealing strip easily to the sealed mode that the epicoele was exerted pressure among the prior art, has improved the life of cavity and sealing strip.

Description

Vacuum box sealing device

Technical Field

The utility model relates to a leak hunting vacuum box, more specifically says that it relates to a vacuum box body sealing device.

Background

The helium leakage detection of the vacuum box is based on the basic leakage detection principle of helium leakage detection, helium is used as tracer gas, the helium is filled into a workpiece in the vacuum box, and then the leakage condition of the workpiece can be judged rapidly and accurately with high precision through the helium leakage detector. For the leak detection of certain workpieces, such as a power battery cover plate on a new energy automobile, the vacuum box body for leak detection is split. Namely, the vacuum box body is divided into an upper cavity and a lower cavity. During leak detection, the upper cavity moves downwards, the lower cavity is covered, and then the helium leak detection is performed by vacuumizing. In order to ensure the air tightness of the cavities, after the two cavities are covered, the upper cavity needs to be pressed to seal the contact part of the two cavities. However, the cavity is easily deformed, and the sealing tape on the contact surface of the cavity is easily damaged, so that the sealing performance of the box body is poor and the production is not facilitated.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to prior art, a vacuum box body sealing device is provided, solved through the mode of exerting pressure make the cavity warp easily, the sealing strip is impaired and lead to the increasingly poor problem of leakproofness of box.

The technical scheme of the utility model lies in: a vacuum box body sealing device comprises an upper cavity and a lower cavity, wherein an upper bending body which is turned to the outer side of the upper cavity is arranged at the end part of the upper cavity, a lower bending body which is turned to the outer side of the lower cavity is arranged at the end part of the lower cavity, a sealing strip is laid on the lower bending body, and a contact sealing surface is formed between the upper bending body and the upper surface of the sealing strip; the end part of the upper bending body is provided with a first upper bending part which is turned to the outer side of the upper bending body, and the lower end of the first upper bending part is provided with a first electromagnet; a positioning block is arranged on the side wall of the lower cavity, the positioning block extends to the position below the first upper bending part, and a second electromagnet is arranged on the positioning block extending to the position below the first upper bending part; an elastic supporting component is arranged between the lower bending body and the lower cavity.

The lower bending body comprises a first lower bending part and a second lower bending part; the first lower bending part extends outwards from the lower end of the lower cavity horizontally, and the second lower bending part extends downwards from the end part of the first lower bending part in an inclined manner; the sealing belt is laid on the upper surfaces of the first lower bending portion and the second lower bending portion, a sunken platform is arranged on one side, close to the lower cavity, of the sealing belt laid on the first lower bending portion, and a plurality of triangular first bulges are continuously arranged on the platform.

Further, the elastic support assembly comprises a telescopic column and a support spring; one end of the telescopic column is connected with the end part of the first lower bending part, and the other end of the telescopic column is connected with the side wall of the lower cavity; the supporting spring is sleeved on the telescopic column.

Furthermore, the upper bending body comprises a third upper bending part and a second upper bending part; the third upper bending part extends horizontally outwards from the lower end of the upper cavity, the second upper bending part extends obliquely downwards from the end part of the third upper bending part, and the first upper bending part extends horizontally outwards from the end part of the second upper bending part; and a sealing gasket matched with the platform is laid below the third upper bending part, a plurality of second protrusions staggered with the first protrusions are arranged on the sealing gasket, and a contact sealing surface is formed between the sealing gasket and the upper surface formed by the platform.

Furthermore, a right-angle support is arranged between the first upper bending part and the upper cavity, one end angle of the right-angle support is fixedly connected with the first upper bending part, and the other end angle of the right-angle support is fixedly connected with the side wall of the upper cavity.

Furthermore, a support rod is arranged between the right-angle support and the upper cavity.

Advantageous effects

The utility model has the advantages that: an upper bending body is arranged at the end part of the upper cavity, a lower bending body is arranged at the end part of the lower cavity, and a sealing belt is laid on the lower bending body; a first upper bending part is arranged at the end part of the upper bending body, and a first electromagnet is arranged at the lower end of the first upper bending part; and the side wall of the lower cavity is provided with a second electromagnet through a positioning block. The suction force of the electromagnet provides pressing force for the sealing between the upper cavity and the lower cavity, so that the vacuum box body is sealed, the problems that the cavity is easy to deform and the sealing belt is damaged in the sealing mode of pressing the upper cavity in the prior art are solved, and the service lives of the cavity and the sealing belt are prolonged. In addition, this application has still set up the elastic support subassembly between the body of bending down and the cavity of resorption for to the support of the body of bending down, prevent its deformation, played the effect that further improves the vacuum box leakproofness.

Drawings

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

fig. 2 is a schematic sectional view of the junction between the upper chamber and the lower chamber according to the present invention.

Wherein: 1-upper cavity, 2-lower cavity, 3-upper bending body, 4-lower bending body, 5-sealing belt, 6-first upper bending part, 7-first electromagnet, 8-positioning block, 9-second electromagnet, 10-telescopic column, 11-supporting spring, 12-sealing gasket, 13-right angle bracket, 31-second upper bending part, 32-third upper bending part, 41-first lower bending part and 42-second lower bending part.

Detailed Description

The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention, but are intended to be covered by the appended claims in any way.

Referring to fig. 1-2, the present invention relates to a vacuum box sealing device, which comprises an upper chamber 1 and a lower chamber 2. An upper bending body 3 which is turned to the outer side of the upper cavity 1 is arranged at the end part of the upper cavity 1, a lower bending body 4 which is turned to the outer side of the lower cavity 2 is arranged at the end part of the lower cavity, a sealing tape 5 is laid on the lower bending body 4, and a contact sealing surface is formed between the upper bending body 3 and the upper surface of the sealing tape 5; the end part of the upper bending body 3 is provided with a first upper bending part 6 which is turned to the outer side of the upper bending body, and the lower end of the first upper bending part 6 is provided with a first electromagnet 7; a positioning block 8 is arranged on the side wall of the lower cavity 2, the positioning block 8 extends to the lower part of the first upper bending part 6, and a second electromagnet 9 is arranged on the positioning block 8 extending to the lower part of the first upper bending part 6; an elastic supporting component is arranged between the lower bending body 4 and the lower cavity 2.

When the upper cavity 1 moves downwards to cover the lower cavity 2, the first electromagnet 7 positioned at the first upper bending part 42 and the second electromagnet 9 positioned on the positioning block 8 are electrified to generate attractive magnetic force, the two electromagnets are mutually attracted, the upper cavity 1 is pressed on the lower cavity 2, and thus a contact sealing surface is formed at the contact position of the upper bending body 3 and the sealing strip 5, and the vacuum box body is sealed. The suction force of the electromagnet provides pressing force for sealing between the upper cavity 1 and the lower cavity 2, the problems that the cavity is easy to deform and the sealing belt 5 is damaged in the sealing mode of pressing the upper cavity 1 in the prior art are solved, and the service lives of the cavity and the sealing belt 5 are prolonged. In addition, in the embodiment, by mutual attraction of the two electromagnets, a larger pressing force can be provided for the upper chamber 1 and the lower chamber 2, so that the upper chamber 1 and the lower chamber 2 are tightly pressed together when being covered, and the sealing property of the joint of the two chambers is improved.

The existing upper chamber 1 and lower chamber 2 are mostly made of 1-3mm steel plates, which have certain deformability. In the process of pressing the two cavities, the end of the lower bending body 4 is not supported, and the sealing performance of the vacuum box body is easily affected by the deformation of the lower bending body. In order to solve the problem, the elastic support component is arranged between the lower bending body 4 and the lower cavity 2 and used for supporting the lower bending body 4. When the body 4 of bending down is out of shape, the reverse acting force of the elastic supporting component to the body 4 of bending down prevents it from being out of shape, and the sealing belt 5 on the body 4 of bending down can obtain larger pressing force, so that the sealing performance is further improved.

The lower bending body 4 of the present embodiment includes a first lower bending portion 41 and a second lower bending portion 42; the first lower bending part 41 extends horizontally outwards from the lower end of the lower cavity 2, and the second lower bending part 42 extends obliquely downwards from the end part of the first lower bending part 41; the sealing tape 5 is laid on the upper surfaces of the first lower bending part 41 and the second lower bending part 42, a concave platform is arranged on one side, close to the lower cavity 2, of the sealing tape 5 laid on the first lower bending part 41, and a plurality of triangular first bulges are continuously arranged on the platform.

The upper bending body 3 comprises a third upper bending part 32 and a second upper bending part 31; the third upper bending part 32 extends horizontally outwards from the lower end of the upper cavity 1, the second upper bending part 31 extends obliquely downwards from the end part of the third upper bending part 32, and the first upper bending part 6 extends horizontally outwards from the end part of the second upper bending part 31; the sealing gasket 12 matched with the platform is laid below the third upper bending part 32, a plurality of second protrusions staggered with the first protrusions are arranged on the sealing gasket 12, and a contact sealing surface is formed between the sealing gasket 12 and the upper surface formed by the platform.

Through the laminating of the different face in two directions of the body 3 of bending on with sealing strip 5, make its area of contact seal face bigger, better seal the junction. And the sealing strip 5 is provided with a sunken platform, after the two cavities are covered, the sealing gasket 12 is positioned in the platform and tightly attached to the platform, the area of the contact sealing surface is further increased, and the sealing of the vacuum box body is facilitated.

The elastic support assembly comprises a telescopic column 10 and a support spring 11; one end of the telescopic column 10 is connected with the end part of the first lower bending part 41, and the other end is connected with the side wall of the lower cavity 2; the support spring 11 is sleeved on the telescopic column 10. The elastic support assembly formed by the telescopic column 10 and the support spring 11 not only provides support for the lower bending body 4, but also enables the lower bending body 4 to have certain deformation capacity, and the problem that the sealing belt 5 on the first lower bending part 41 is abraded too much when the upper cavity 1 is covered due to the fact that the rigidity of the first lower bending part 41 is too large is avoided.

Preferably, a right-angle bracket 13 is arranged between the first upper bending part 6 and the upper cavity 1, one end angle of the right-angle bracket 13 is fixedly connected with the first upper bending part 6, and the other end angle of the right-angle bracket 13 is fixedly connected with the side wall of the upper cavity 1. The right-angle support 13 is used for positioning the upper bending body 3, and the situation that the sealing performance of the vacuum box body is affected due to deformation in the covering process is avoided.

Preferably, a support rod 14 is provided between the right-angle bracket 13 and the upper chamber 1. One end of the support rod 14 is connected with the bevel edge of the right-angle bracket 13, and the other end is connected with the side wall of the upper chamber 1, so that the right-angle bracket 13 is more stably and firmly positioned on the side wall of the upper chamber 1.

The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.

Claims

1. A vacuum box sealing device comprises an upper cavity (1) and a lower cavity (2), and is characterized in that an upper bending body (3) which is turned to the outer side of the upper cavity is arranged at the end part of the upper cavity (1), a lower bending body (4) which is turned to the outer side of the lower cavity is arranged at the end part of the lower cavity (2), a sealing strip (5) is laid on the lower bending body (4), and a contact sealing surface is formed between the upper bending body (3) and the upper surface of the sealing strip (5); a first upper bending part (6) which is turned to the outer side of the upper bending body (3) is arranged at the end part of the upper bending body, and a first electromagnet (7) is arranged at the lower end of the first upper bending part (6); a positioning block (8) is arranged on the side wall of the lower cavity (2), the positioning block (8) extends to the lower part of the first upper bending part (6), and a second electromagnet (9) is arranged on the positioning block (8) extending to the lower part of the first upper bending part (6); an elastic supporting component is arranged between the lower bending body (4) and the lower cavity (2).

2. Vacuum box sealing device according to claim 1, characterised in that the lower bend (4) comprises a first lower bend (41) and a second lower bend (42); the first lower bending part (41) extends outwards from the lower end of the lower cavity (2) horizontally, and the second lower bending part (42) extends downwards from the end part of the first lower bending part (41) in an inclined manner; the sealing strip (5) is laid on the upper surfaces of the first lower bending portion (41) and the second lower bending portion (42), a sunken platform is arranged on one side, close to the lower cavity (2), of the sealing strip (5) laid on the first lower bending portion (41), and a plurality of triangular first bulges are continuously arranged on the platform.

3. A vacuum box sealing arrangement according to claim 2, characterized in that the resilient support assembly comprises a telescopic column (10) and a support spring (11); one end of the telescopic column (10) is connected with the end part of the first lower bending part (41), and the other end of the telescopic column is connected with the side wall of the lower cavity (2); the supporting spring (11) is sleeved on the telescopic column (10).

4. A vacuum box sealing arrangement according to claim 2, characterized in that the upper bending body (3) comprises a third upper bending part (32) and a second upper bending part (31); the third upper bending part (32) extends outwards from the lower end of the upper cavity (1) horizontally, the second upper bending part (31) extends downwards from the end part of the third upper bending part (32) in an inclined manner, and the first upper bending part (6) extends outwards from the end part of the second upper bending part (31) horizontally; and a sealing gasket (12) matched with the platform is laid below the third upper bending part (32), a plurality of second protrusions staggered with the first protrusions are arranged on the sealing gasket (12), and a contact sealing surface is formed between the sealing gasket (12) and the upper surface formed by the platform.

5. The vacuum box sealing device according to claim 1, wherein a right-angle bracket (13) is arranged between the first upper bending part (6) and the upper cavity (1), one end corner of the right-angle bracket (13) is fixedly connected with the first upper bending part (6), and the other end corner of the right-angle bracket (13) is fixedly connected with the side wall of the upper cavity (1).

6. Vacuum box sealing according to claim 5, characterised in that a support bar (14) is provided between the right-angle bracket (13) and the upper chamber (1).