CN218031205U

CN218031205U - Air bag type sealing structure

Info

Publication number: CN218031205U
Application number: CN202222026513.2U
Authority: CN
Inventors: 刘加永; 李小丰; 徐佳兴
Original assignee: Zhongke Keling Beijing Technology Co ltd
Current assignee: Zhongke Keling Beijing Technology Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-12-13
Anticipated expiration: 2032-08-02

Abstract

The application discloses gasbag formula seal structure relates to sealed technical field, including the equipment body, it keeps away the position groove to have seted up on the equipment body, it installs the door plant to keep away the inslot interpolation, the door plant with keep away and to have the gasbag between the lateral wall in position groove, the gasbag rigid coupling is on the equipment body, the inflation inlet has been seted up to gasbag one side. The air bag sealing device has the advantages of reducing the possibility that the air bag is abraded, prolonging the service life and strengthening the sealing effect.

Description

Air bag type sealing structure

Technical Field

The application relates to the technical field of sealing, in particular to an air bag type sealing structure.

Background

The high-low temperature test equipment is mainly used for high-low temperature reliability tests, and various performance indexes of parts and materials of relevant products such as aerospace, electronics and electricians, automobiles and motorcycles are tested under the condition of high-low temperature change, so that the high-low temperature test equipment needs to ensure the sealing of an inner cavity of the high-low temperature test equipment during working, and the requirement for accurately regulating and controlling the temperature in the cavity is met.

The door plate is covered at the opening of the inner cavity of the high-low temperature test equipment, the door plate and the equipment body are generally connected in a sealing mode through the P-type sealing strip, the P-type sealing strip is good in elasticity and strong in adaptive deformability, and a good sealing effect can be achieved under the normal condition. However, the door plate of the high-low temperature test equipment is opened and closed frequently, and the aging and abrasion of the P-shaped sealing strip are accelerated in the environment of high-low temperature alternate change of the cavity of the equipment, so that the sealing effect is adversely affected.

SUMMERY OF THE UTILITY MODEL

In order to improve the P type sealing strip wearing and tearing of door plant lid department too fast on the high low temperature test equipment, sealed not good problem of effect, this application provides an air bag formula seal structure.

The application provides a gasbag formula seal structure adopts following technical scheme:

the utility model provides an air bag type sealing structure, includes the equipment body, the last groove of keeping away has been seted up of the equipment body, it installs the door plant to keep away the interpolation in the groove, the door plant is filled with the gasbag with keeping away between the lateral wall in groove, the gasbag rigid coupling is on the equipment body, the inflation inlet has been seted up to gasbag one side.

By adopting the technical scheme, the door plate is inserted into the avoiding groove of the equipment body, and then the air bag is inflated through the inflation inlet, so that the air bag is expanded to be tightly attached to the door plate, and a sealing effect is achieved; when the door plate is pulled out, the air bag is exhausted, the door plate can be pulled out smoothly, contact resistance between the door plate and the air bag when the door plate is opened is reduced, the possibility that the air bag is abraded is reduced, and the service life is prolonged. And the air bag is sealed by using gas, so that the heat exchange between the inner cavity of the equipment body and the outer side is reduced, and the heat preservation effect is achieved.

Optionally, a spring is fixedly arranged inside the airbag, and the length direction of the spring is along the direction close to or far away from the door panel.

Through adopting above-mentioned technical scheme, the gasbag is when not aerifing, and the spring is in normal condition, and when the gasbag was inflated sealedly, the spring was stretched, when treating the gasbag and exhaust, the spring reset, and elasticity drives the gasbag and is close to the tank bottom motion in a side direction of door plant and keeps away the position groove, makes gasbag and door plant break away from completely to avoid the door plant at the in-process that opens and shuts, carry out the friction loss to the gasbag, strengthened the life of gasbag.

Optionally, one end of the spring is fixedly connected to the inner wall of the air bag close to the equipment body, the other end of the spring is fixedly connected to an elastic rubber pad, and the elastic rubber pad is fixedly connected to the inner wall of the air bag facing the door panel side.

Through adopting above-mentioned technical scheme, the spring makes gasbag and door plant break away from completely, and the elastic rubber pad rigid coupling has reduced the reverse effort that the spring directly produced the gasbag between spring and the gasbag inner wall towards the door plant side, has ensured sealed effect.

Optionally, an air outlet is formed in the air bag, and a pressure release valve is arranged on the air outlet; and a pressure detector is arranged in the air bag.

Through adopting above-mentioned technical scheme, the gas outlet and the setting of relief valve are favorable to strengthening the adaptability of gasbag to the high low temperature alternation of equipment body, have avoided the gas in the gasbag to appear the condition of expanding or shriveling because expend with heat and contract with cold, have guaranteed sealed effect.

Optionally, the pressure relief valve is set with a preset pressure value, and the preset pressure value is greater than the minimum value of the air bag meeting the sealing requirement.

By adopting the technical scheme, when the air pressure in the air bag is greater than the preset value pressure value, the pressure relief valve is opened, and excessive air is discharged from the air outlet, so that the over-expansion of the air bag is avoided; when the air pressure in the air bag is smaller than the preset pressure value, the air bag is inflated from the inflation inlet, and the condition that the air bag is excessively deflated to cause untight sealing is avoided. The pressure in the air bag is always greater than the minimum value of the air bag meeting the sealing requirement, and the sealing tightness is further ensured.

Optionally, the air bags are provided with two groups, and the two groups of air bags are symmetrically distributed on two sides of the door panel.

By adopting the technical scheme, the two groups of air bags are symmetrically distributed on the two sides of the door panel, and after the air bags are inflated simultaneously, the air tightness of the matching part of the equipment body and the door panel is ensured, and the sealing effect is improved; and after the air bag exhausts, gaps are reserved on the two sides of the door plate, so that the door plate can be conveniently inserted and pulled out, and the abrasion consumption of the door plate and the air bag is avoided.

Optionally, the balloon is of annular configuration.

Through adopting above-mentioned technical scheme, annular gasbag sets up on the equipment body, treats that the door plant inserts the back, and the gasbag is aerifyd, and the door plant is abundant to be propped, forms isolated region, has further promoted the sealed effect of gasbag, has guaranteed the reliable operation of high low temperature test equipment.

Optionally, the inflation port of the airbag extends out of the device body.

Through adopting above-mentioned technical scheme, the inflation inlet stretches out to the outside of equipment body, makes things convenient for outside air pump and gasbag to be connected, aerifys and exhaust operation, and the installation is swift, the follow-up maintenance of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the air bag, the door plate is inserted into the position avoiding groove of the equipment body, and then the air bag is inflated, so that the air bag is expanded to be tightly attached to the door plate, and the sealing effect is achieved; when the door plate is pulled out, the air bag is exhausted, the door plate can be pulled out smoothly, contact resistance between the door plate and the air bag when the door plate is opened is reduced, the possibility that the air bag is abraded is reduced, and the service life is prolonged. And the air bag is sealed by using gas, so that the heat exchange between the inner cavity of the equipment body and the outer side is reduced, and the heat preservation effect is achieved.

2. Through setting up spring and rubber cushion, under the prerequisite of sealed effect when guaranteeing the gasbag and aerify, make the gasbag break away from with the door plant completely after exhausting, avoid the door plant at the in-process that opens and shuts, carry out the friction loss to the gasbag, strengthened the life of gasbag.

3. Through setting up gas outlet, relief valve and pressure detector, be favorable to strengthening the gasbag to the adaptability of equipment body high-low temperature alternation, avoided the gas in the gasbag to appear the condition of expanding or shriveling owing to expend with heat and contract with cold, guaranteed sealed effect.

Drawings

FIG. 1 is a schematic structural diagram of an apparatus body in an embodiment of the present application;

FIG. 2 is a schematic view of a bladder seal arrangement in an embodiment of the present application;

fig. 3 is an enlarged view at a in fig. 2.

Description of reference numerals: 1. an apparatus body; 11. a cavity; 12. a position avoiding groove; 13. a cross beam; 14. a controller; 2. a door panel; 21. a screw; 22. a handle; 3. an air bag; 31. an inflation inlet; 32. a spring; 33. an elastic rubber pad; 34. a pressure detector; 35. an air outlet; 36. and (4) releasing the valve.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses gasbag formula seal structure, refer to fig. 1 and fig. 2, including the equipment body 1 of high low temperature test equipment, seted up cavity 11 on the equipment body 1, cavity 11 is used for detecting the sample, and the opening department of cavity 11 covers has door plant 2, is provided with gasbag 3 between door plant 2 and the equipment body 1, and gasbag 3 is used for sealing door plant 2 and equipment body 1.

Referring to fig. 1 and 2, the groove 12 of keeping away has been seted up on equipment body 1, keep away the vertical setting in groove 12, door plant 2 slidable mounting is in keeping away a inslot 12, the vertical rigid coupling in one side of door plant 2 has screw rod 21, be provided with crossbeam 13 on the equipment body 1, screw rod 21 wears to establish the outside to crossbeam 13, screw rod 21 stretches out the one end top spin to the crossbeam 13 outside and has twisted handle 22, handle 22 rotates with crossbeam 13 along self axis and connects, through rotatory handle 22, screw rod 21 carries out the lift of vertical direction, thereby drive door plant 2 and go up and down, reach the operation of opening and closed cavity 11.

Referring to fig. 2 and 3, the air bags 3 are fixedly connected in the avoiding groove 12 of the equipment body 1, the air bags 3 are annularly arranged and surround the opening of the cavity 11 of the equipment body 1, two groups of air bags 3 are arranged, and the two groups of air bags 3 are symmetrically distributed on two sides of the door panel 2. Referring to fig. 1 and 2, an inflation port 31 is provided on the airbag 3, the inflation port 31 extends to the outside of the device body 1, and an external bidirectional air pump is communicated with the inflation port 31 and is used for inflating or deflating the airbag 3.

Referring to fig. 3, one side of the airbag 3 away from the door panel 2 is fixedly connected to the apparatus body 1, the inner wall of the airbag 3 close to the apparatus body 1 is fixedly connected to a spring 32, the length direction of the spring 32 is along the direction close to or away from the door panel 2, the other end of the spring 32 is fixedly connected to an elastic rubber pad 33, and one side of the elastic rubber pad 33 away from the spring 32 is fixedly connected to the inner wall of the airbag 3 facing the door panel 2.

When the air bag 3 is not inflated, the spring 32 is in a normal state; when the air bag 3 is inflated, the spring 32 is stretched, and one side of the air bag 3 is abutted against the door panel 2; after the air bag 3 exhausts, the spring 32 resets, and the elastic force drives the elastic rubber pad 33 and the air bag 3 to move towards the bottom of the avoiding groove 12 on the side close to the door plate 2, so that the air bag 3 and the door plate 2 are completely separated, thereby avoiding the friction loss of the air bag 3 in the opening and closing process of the door plate 2, and prolonging the service life of the air bag 3.

Referring to fig. 3, a pressure detector 34 is further disposed in the air bag 3, and the pressure detector 34 is used for monitoring the air pressure in the air bag 3 in real time. The pressure detector 34 is electrically connected with the controller 14 on the device body 1, and the controller 14 is electrically connected with an external bidirectional air pump.

Referring to fig. 1 and 2, an air outlet 35 is further provided on the air bag 3, a pressure relief valve 36 is provided on the air outlet 35, the pressure relief valve 36 is set with a preset pressure value, and the preset pressure value is greater than the minimum value of the air bag 3 meeting the sealing requirement. The air pressure in the air bag 3 fluctuates along with the temperature change in the cavity 11 of the equipment body 1, when the temperature is too high, the air is heated to expand, the pressure release valve 36 is automatically opened, and the excessive air is discharged from the air outlet 35, so that the over-expansion of the air bag 3 is avoided; when the temperature is too low, the air is cooled and retracted, and the pressure detector 34 detects that the air pressure in the air bag 3 is smaller than a preset pressure value, the air bag 3 is inflated from the inflation inlet 31, so that the condition that the air bag 3 is excessively deflated to cause untight sealing is avoided, and the sealing reliability of the air bag 3 is enhanced.

The implementation principle of the embodiment of the application is as follows: two sets of annular gasbag 3 symmetry sets up in door plant 2 and the clearance that keeps away position groove 12 formation of equipment body 1, when door plant 2 closed, inflates in the gasbag 3, and gasbag 3 inflation supports door plant 2 tightly from both sides, reaches sealed effect. When the door panel 2 needs to be opened, the internal pressure gas of the airbag 3 is exhausted, the airbag 3 and the door panel 2 are completely separated, the door panel 2 is lifted, and the cavity 11 of the device body 1 is opened.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. A gasbag formula seal structure which characterized in that: including equipment body (1), spacing groove (12) have been seted up on equipment body (1), door plant (2) are installed in the interpolation of spacing groove (12), it has gasbag (3) to fill between door plant (2) and the lateral wall of spacing groove (12), gasbag (3) rigid coupling is on equipment body (1), inflation inlet (31) have been seted up to gasbag (3) one side.

2. A bladder type seal structure according to claim 1, wherein: a spring (32) is fixedly arranged inside the air bag (3), and the length direction of the spring (32) is along the direction close to or far away from the door panel (2).

3. A bladder type seal structure according to claim 2, wherein: one end rigid coupling of spring (32) is on gasbag (3) is close to the inner wall of equipment body (1), the other end rigid coupling of spring (32) has elastic rubber pad (33), elastic rubber pad (33) rigid coupling is on gasbag (3) inner wall towards door plant (2) side.

4. A bladder type seal structure according to claim 1, wherein: an air outlet (35) is formed in the air bag (3), and a pressure release valve (36) is arranged on the air outlet (35); a pressure detector (34) is arranged in the air bag (3).

5. A bladder type seal structure according to claim 4, wherein: the pressure relief valve (36) is set with a preset pressure value, and the preset pressure value is larger than the minimum value of the air bag (3) meeting the sealing requirement.

6. A bladder type seal structure according to claim 1, wherein: the air bags (3) are arranged in two groups, and the two groups of air bags (3) are symmetrically distributed on two sides of the door plate (2).

7. A bladder type seal structure according to claim 1, wherein: the air bag (3) is of an annular structure.

8. A bladder type seal structure according to claim 1, wherein: and an inflation opening (31) of the air bag (3) extends out of the outer side of the equipment body (1).