CN114776199A - High and low temperature resistant sealing strip and test box - Google Patents
High and low temperature resistant sealing strip and test box Download PDFInfo
- Publication number
- CN114776199A CN114776199A CN202210479019.3A CN202210479019A CN114776199A CN 114776199 A CN114776199 A CN 114776199A CN 202210479019 A CN202210479019 A CN 202210479019A CN 114776199 A CN114776199 A CN 114776199A
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing strip
- sealing head
- head
- strip according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 96
- 238000012360 testing method Methods 0.000 title claims description 15
- 239000011324 bead Substances 0.000 claims 2
- 238000009413 insulation Methods 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000000741 silica gel Substances 0.000 abstract description 3
- 229910002027 silica gel Inorganic materials 0.000 abstract description 3
- YAFQFNOUYXZVPZ-UHFFFAOYSA-N liproxstatin-1 Chemical compound ClC1=CC=CC(CNC=2C3(CCNCC3)NC3=CC=CC=C3N=2)=C1 YAFQFNOUYXZVPZ-UHFFFAOYSA-N 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
- E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
- E06B7/2312—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with two or more sealing-lines or -planes between the wing and part co-operating with the wing
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Gasket Seals (AREA)
Abstract
The utility model provides a high and low temperature resistant sealing strip and proof box, includes sealing head and connecting portion, and sealing head and connecting portion are by silica gel material integrated into one piece, and sealing head is cambered surface shape, and sealing head is equipped with hollow cavity, and sealing head's inner wall is equipped with the recess, is equipped with the companion tropical in the recess. The connecting part is adhered in the seams of the box door, and the disassembly and the assembly are simple. The heat tracing band penetrates through the channel of the connecting part and is installed in the groove of the inner wall of the sealing head part, the end part of the heat tracing band is directly connected to the temperature control system, the sealing strip can be directly heated through the heat tracing band, the sealing strip is always kept in a certain temperature range, and the sealing strip is prevented from expanding with heat and contracting with cold. Two convex sealing lips above the sealing strip can form end face seal when the chamber door is closed, increase area of contact, make sealed effect better.
Description
Technical Field
The application relates to the field of sealing strips, in particular to a high and low temperature resistant sealing strip.
Background
The high-low temperature damp-heat test box is also named as an environment testing machine, is used for reliability tests of industrial products in high-temperature, low-temperature and different humidity environments, and is used for testing various performance indexes of parts and materials of related products such as electronic engineering, automobile motorcycles, aerospace, ship weapons, universities and colleges, scientific research units and the like in the high-temperature, low-temperature and different humidity environments. The temperature range of the high-low temperature damp-heat test box is-70-180 ℃, so that the temperature resistance range of a door body of the test box is required to be-70-180 ℃.
Patent CN201920979629.3 discloses a door frame seal structure of high low temperature damp and hot test box, the connecting gap department of box and the door body sets up a plurality of sealing strips, and the synthetic cross-section of second lateral wall, kink and the sealing of sealing strip encloses the cavity seal chamber for having the protruding polygon more than the four sides. Because expend with heat and contract with cold physics phenomenon, current sealing strip can contract under low temperature state, and the inside air pressure of proof box is low, and inside external humid air got into the proof box through sealed not tight department, lead to the inside evaporimeter of proof box to frost, finally can not accomplish the test.
Disclosure of Invention
The main object of this application is to provide a high low temperature resistant sealing strip and proof box, simple structure to can solve the above-mentioned technical shortcoming.
In order to realize the above-mentioned purpose, the application provides a high low temperature resistant sealing strip, including integrated into one piece's sealed head and connecting portion, sealed head is the cambered surface shape, and sealed head is equipped with hollow cavity, and sealed head's inner wall is equipped with the recess, is equipped with the companion tropical in the recess.
As a further improvement of the above technical solution:
two sides of the sealing head part are respectively provided with a sealing lip extending out of the sealing head part.
The sealing lip is in a downward bent arc surface shape, the length of the cross section of the sealing lip is 15-20mm, and the included angle between the sealing lip and the horizontal plane is 30-45 degrees.
The inner wall of the sealing head part is axially provided with a raised line which protrudes out of the surface of the inner wall, and the groove is arranged in the raised line.
The cross section of the groove is semicircular.
The cross-section of the sealing head is semicircular, and the cross-sectional areas of the sealing head and the connecting part form a screw shape.
The connecting portion defines a passage along the centerline that communicates with the chamber of the sealing head.
The two side surfaces of the connecting part are provided with a plurality of convex edges.
The connecting part is provided with 3-4 convex edges, and the distance between every two adjacent convex edges is 3-10 mm.
The application also provides a high and low temperature resistant test box, and the box door of the test box is provided with the sealing strip.
Through with the companion tropical direct mount inside the sealing strip, can directly heat the sealing strip, make the sealing strip remain throughout in certain temperature range, two arc seal lips above the sealing strip can form end face seal when the chamber door is closed, increase area of contact, make sealed effect better. The sealing strip is arranged on the box door of the test box and is enclosed into a circle, the joint is sealed, the tracing band is opened at low temperature, and the temperature of the sealing strip rises to reach the optimal sealing state; the sealing strip is directly glued on the box door through silica gel, and the dismounting is simple.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic cross-sectional view of a weather strip of the present invention which is resistant to high and low temperatures.
Fig. 2 is a schematic view of the arrangement of the sealing strip in the door.
In the figure: 1. a sealing lip; 2. a heat tracing band; 3. a chamber; 4. a channel; 5. a connecting portion; 6. a rib; 7. a sealing head; 8. a convex strip; 9. a groove; 10. and (4) a box door.
Detailed Description
Referring to fig. 1, the present application provides a high and low temperature resistant sealing strip, which includes a sealing head portion 7 and a connecting portion 5, wherein the sealing head portion 7 and the connecting portion 5 are integrally formed by a silicone material, the sealing head portion 7 is provided with a hollow chamber 3, and the chamber 3 can keep the temperature of the sealing strip within a certain range. And can have good deformation space when being extruded. The thickness of the silica gel wall of the sealing head part 7 is 10-20 mm. The cross-section of the sealing head 7 and the connecting portion 5 resembles the shape of a "screw". The inner wall of the chamber 3 of the sealing head 7 is provided with a convex strip 8 protruding the inner wall surface. A groove 9 for placing the heat tracing band is arranged in the raised strip 8, the cross section of the groove 9 is in a semicircular shape, and the heat tracing band is embedded in the groove 9. The effect of setting up sand grip 8 is convenient for increase the thickness of setting up sealing head 7 of recess 9 part, avoids sealing head 7 local thickness too thin. Two sides of the sealing head part 7 are provided with horn-shaped sealing lips 1, and the included angle between the sealing lips 1 and the horizontal plane is 30-45 degrees. When the chamber door was closed, sealing lip 1 can be by extrusion deformation, better sealing, and wherein one side sealing lip 1 lies in the chamber door interior edge, contacts the proof box inside, and the sealing lip 1 of opposite side then lies in the chamber door outer edge, can not contact the inside temperature of proof box, can guarantee that the sealing strip is not influenced by the inside temperature of proof box. The sealing lip 1 is in a downward bent arc shape, and the length of the cross section of the sealing lip 1 is 15-20 mm. The connecting portion 5 is provided with a passage along the center line communicating with the chamber 3 of the sealing head 7, for facilitating insertion of the heat trace tape 2 through the passage 4 into the recess 9 of the sealing head 7. The connecting portion 5 is inserted into a slit of the door 10 for connection with the door 10. The two side surfaces of the connecting part 5 are provided with convex edges 6 which are used for increasing the friction force. Usually, the length of the connecting part 5 is 30-50mm, 4 ribs 6 are generally arranged on the connecting part 5, and the distance between two adjacent ribs 6 is 3-10 mm.
The connecting part 5 is adhered in a circle of seams around the box door 10 through adhesive. The heat tracing band 2 penetrates through the channel 4 of the connecting part 5 and is embedded into the groove 9 in the inner wall of the sealing head part 7, the end part of the heat tracing band 2 is directly connected to the temperature control system, the sealing strip can be directly heated through the heat tracing band 2, the sealing strip is always kept in a certain temperature range, and the sealing strip is prevented from expanding with heat and contracting with cold. Two convex sealing lips 1 on the sealing strip can form end face seal when the box door is closed, so that the contact area is increased, and the sealing effect is better.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a high low temperature resistant sealing strip which characterized in that: the heat-insulation sealing device comprises a sealing head part (7) and a connecting part (5) which are integrally formed, wherein the sealing head part (7) is arc-shaped, the sealing head part (7) is provided with a hollow cavity (3), the inner wall of the sealing head part (7) is provided with a groove (9), and a heat tracing band (2) is arranged in the groove (9).
2. A sealing strip according to claim 1, characterised in that the sealing head (7) is provided on each side with a sealing lip (1) extending beyond the sealing head (7).
3. A strip according to claim 2, characterised in that the sealing lip (1) is curved downwards, the length of the cross-section of the sealing lip (1) being 15-20mm, and the angle between the sealing lip (1) and the horizontal being 30-45 °.
4. A sealing strip according to claim 1, characterized in that the inner wall of the sealing head (7) is provided with a bead (8) projecting from the inner wall surface in the axial direction, the groove (9) being provided in the bead (8).
5. A sealing strip according to claim 4, characterised in that the cross-section of the groove (9) is semicircular.
6. A strip according to claim 1, characterised in that the cross-section of the sealing head (7) is semi-circular and that the cross-sectional areas of the sealing head (7) and the connecting portion (5) constitute a "screw" shape.
7. Sealing strip according to claim 1, characterised in that the connecting part (5) is provided with a channel (4) along the centre line which communicates with the chamber (3) of the sealing head (7).
8. Sealing strip according to claim 1, characterised in that the connecting part (5) is provided with several ribs (6) on both sides.
9. A sealing strip according to claim 8, characterised in that the connecting portion (5) is provided with 3-4 ribs (6), the spacing between two adjacent ribs (6) being 3-10 mm.
10. A high and low temperature resistance test chamber, wherein the chamber door of the test chamber is provided with the sealing strip of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210479019.3A CN114776199A (en) | 2022-05-05 | 2022-05-05 | High and low temperature resistant sealing strip and test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210479019.3A CN114776199A (en) | 2022-05-05 | 2022-05-05 | High and low temperature resistant sealing strip and test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114776199A true CN114776199A (en) | 2022-07-22 |
Family
ID=82435476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210479019.3A Pending CN114776199A (en) | 2022-05-05 | 2022-05-05 | High and low temperature resistant sealing strip and test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114776199A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060108747A1 (en) * | 2004-11-23 | 2006-05-25 | Mantaline Corporation | Collapse-controlled, rotation-resisting bulb seal |
| CN209159373U (en) * | 2018-11-14 | 2019-07-26 | 广东顺德合昌橡塑有限公司 | A kind of sealing strip of rubber |
| CN210370420U (en) * | 2019-06-27 | 2020-04-21 | 无锡帕捷科技有限公司 | Door frame sealing structure of high-low temperature damp-heat test box |
| CN112452361A (en) * | 2020-12-15 | 2021-03-09 | 天津航天瑞莱科技有限公司 | Ultra-low temperature liquid nitrogen test box |
| CN212985065U (en) * | 2020-06-19 | 2021-04-16 | 安徽金诚天骏汽车零部件制造有限公司 | Refrigerator sealing strip structure |
| CN114235290A (en) * | 2021-12-16 | 2022-03-25 | 中传检测(广州)科技有限公司 | Lip-shaped sealing strip for main drive air tightness detection and detection method thereof |
-
2022
- 2022-05-05 CN CN202210479019.3A patent/CN114776199A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060108747A1 (en) * | 2004-11-23 | 2006-05-25 | Mantaline Corporation | Collapse-controlled, rotation-resisting bulb seal |
| CN209159373U (en) * | 2018-11-14 | 2019-07-26 | 广东顺德合昌橡塑有限公司 | A kind of sealing strip of rubber |
| CN210370420U (en) * | 2019-06-27 | 2020-04-21 | 无锡帕捷科技有限公司 | Door frame sealing structure of high-low temperature damp-heat test box |
| CN212985065U (en) * | 2020-06-19 | 2021-04-16 | 安徽金诚天骏汽车零部件制造有限公司 | Refrigerator sealing strip structure |
| CN112452361A (en) * | 2020-12-15 | 2021-03-09 | 天津航天瑞莱科技有限公司 | Ultra-low temperature liquid nitrogen test box |
| CN114235290A (en) * | 2021-12-16 | 2022-03-25 | 中传检测(广州)科技有限公司 | Lip-shaped sealing strip for main drive air tightness detection and detection method thereof |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination |