CN220118643U - Novel sealing structure of high-pressure protection refrigerating system - Google Patents
Novel sealing structure of high-pressure protection refrigerating system Download PDFInfo
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- CN220118643U CN220118643U CN202320467178.1U CN202320467178U CN220118643U CN 220118643 U CN220118643 U CN 220118643U CN 202320467178 U CN202320467178 U CN 202320467178U CN 220118643 U CN220118643 U CN 220118643U
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- 238000007789 sealing Methods 0.000 title claims abstract description 116
- 238000005057 refrigeration Methods 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003507 refrigerant Substances 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a novel sealing structure of a high-pressure protection refrigeration system, which belongs to the technical field of refrigeration system filling equipment, and comprises a core body, a sealing structure and a sealing structure, wherein the core body is provided with a first end face and a second end face, and a filling channel is arranged on the core body; the inner wall of the filling channel is provided with a sealing surface and a first limiting surface; the core rod is arranged in the filling channel; having a third end face and a fourth end face; an elastic piece is arranged between the third end face and the first end face; a sealing gasket is arranged on the fourth end face; the peripheral surface of the core bar is provided with a second limiting surface; the utility model utilizes the matching of the first limit surface on the filling channel and the second limit surface on the core rod to form the second limit point, can avoid the condition that the refrigerant is leaked when the sealing gasket is reused after being subjected to overpressure deformation under the high-pressure environment, ensures the structural strength of the product, enhances the stability of the product, can form a double-sealing structure, achieves better sealing effect and improves the sealing stability of the refrigerating system.
Description
Technical Field
The utility model relates to the technical field of refrigeration system filling equipment, in particular to a novel high-pressure protection refrigeration system sealing structure.
Background
In recent years, the automobile air conditioner industry has also achieved a faster development due to the rapid development of economy and automobile industry, and the structural stability, energy conservation and emission reduction of the automobile air conditioner have become the main development trend in the future.
At present, the system pressure of the automobile air conditioner is generally about 6MP, and a sealing element of the automobile air conditioner also needs to be capable of meeting the sealing requirement under the pressure for a long time; meanwhile, the refrigerant used by the automobile air conditioner often needs to be repeatedly filled, which also puts higher demands on the effectiveness of the repeated use of the sealing element. The prior automobile air conditioner sealing member has unsatisfactory use effect and service life under the condition of repeated use and high pressure.
In order to solve the above problems, designing a sealing structure that can ensure the structural strength of a product, enhance the stability of the product and improve the sealing stability of an automobile refrigeration system in a high-pressure environment is a problem to be solved in the current stage of production enterprises.
Disclosure of Invention
The sealing structure of the novel high-pressure protection refrigerating system provided by the utility model has the advantages that the first limiting surface on the filling channel is matched with the second limiting surface on the core rod to form the second limiting point, the condition that the refrigerant is leaked when the sealing gasket is reused after being subjected to overpressure deformation can be avoided in a high-pressure environment, the structural strength of a product is ensured, the stability of the product is enhanced, meanwhile, a double-sealing structure can be formed, a better sealing effect is achieved, and the sealing stability of the refrigerating system is improved.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a novel sealing structure of a high-pressure protection refrigeration system, which comprises the following components:
a core having a first end face and a second end face, the core having a filling channel therein communicating the first end face with the second end face; a sealing surface is arranged on the inner wall of the filling channel at a position close to the second end surface; a first limiting surface is arranged on the inner wall of the filling channel at a position between the sealing surface and the first end surface;
the core rod is arranged in the filling channel; the core rod has a third end face and a fourth end face, the third end face extending from the first end face, the fourth end face extending from the second end face; an elastic piece is arranged between the third end face and the first end face, and the elastic piece applies elastic force to the core bar in the direction from the second end face to the first end face; a sealing gasket is arranged at the position of the core rod close to the fourth end face; the peripheral surface of the core bar is provided with a second limiting surface;
the core rod is movable between a first position, a second position and a third position, the second position being located between the first position and the third position; in the first position, a gap is formed between the sealing gasket and the sealing surface, and the filling channel is in an open state; when the filling channel is in a closed state, the sealing gasket is in butt joint with the sealing surface, a gap is reserved between the first limiting surface and the second limiting surface; when the sealing gasket is in the third position, the sealing gasket is abutted with the sealing surface, the first limiting surface is abutted with the second limiting surface, and the filling channel is in a closed state.
As a preferred embodiment, the sealing surface is provided as a tapered surface which is inclined outwardly in a direction from the first end surface to the second end surface; the maximum diameter of the conical surface is larger than the outer diameter of the sealing gasket, and the minimum diameter of the conical surface is smaller than the outer diameter of the sealing gasket.
As a preferred embodiment, the sealing surface is provided as a first annular plane perpendicular to the axis of the filling channel; the major diameter of the first circular ring plane is not smaller than the outer diameter of the sealing gasket, and the minor diameter of the first circular ring plane is smaller than the outer diameter of the sealing gasket.
As a preferable technical scheme, the first limiting surface is a second circular ring plane perpendicular to the axis of the filling channel, and the second limiting surface is a third circular ring plane perpendicular to the axis of the filling channel; the major diameter of the third annular plane is greater than the minor diameter of the second annular plane.
As a preferable technical scheme, in the second position, the gap width between the first limiting surface and the second limiting surface is 0.25-0.4mm.
As a preferable technical scheme, the outer wall surface of the core body is provided with external threads.
As a preferable technical scheme, the outer wall surface of the core body is provided with a waist groove which is circumferentially arranged, and a sealing ring is embedded in the waist groove.
As a preferable technical scheme, a baffle is arranged at the third end face, one end of the elastic piece is abutted to the baffle, the other end of the elastic piece is abutted to the first end face, and the elastic piece is in a compressed state.
As a preferred technical scheme, the elastic element is a spring, and the spring is sleeved on the core rod.
As an optimized technical scheme, a positioning table is arranged on the fourth end face, the sealing gasket is sleeved on the core rod, and one end, far away from the core body, of the sealing gasket is abutted to the positioning table.
The beneficial effects of the utility model are as follows:
the first limiting surface on the filling channel is matched with the second limiting surface on the core rod to form a second limiting point, the first limiting surface is abutted against the second limiting surface in a high-pressure environment, so that the condition that a sealing gasket is subjected to overpressure deformation and refrigerant leakage during reuse is avoided, the structural strength of a product is ensured, the stability of the product is enhanced, meanwhile, the sealing surface, the sealing gasket and the first limiting surface and the second limiting surface can form a double-sealing structure, a better sealing effect is achieved, and the sealing stability of a refrigerating system is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of a novel high-pressure protection refrigeration system seal structure according to the present utility model;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is a schematic view of the overall structure of another embodiment of a novel high-pressure protection refrigeration system seal structure according to the present utility model;
fig. 4 is an enlarged view of region B in fig. 3.
In the figure: 1-core body, 11-first end face, 12-second end face, 13-filling channel, 14-sealing face, 15-first limit face, 16-external screw thread, 2-core bar, 21-third end face, 22-fourth end face, 23-second limit face, 24-baffle table, 25-locating table, 3-elastic piece, 4-sealing gasket, 5-sealing ring.
Detailed Description
The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
Example 1
Referring to fig. 1 and fig. 2, an embodiment of a sealing structure of a novel high-pressure protection refrigeration system provided by the present utility model includes:
the automobile air conditioner comprises a core body 1, wherein the core body 1 is provided with a first end face 11 and a second end face 12, a filling channel 13 is used for communicating the first end face 11 with the second end face 12, and the filling channel 13 is used for filling a refrigerant into the automobile air conditioner when the automobile air conditioner is installed on the automobile air conditioner; a sealing surface 14 is arranged on the inner wall of the filling channel 13 at a position close to the second end surface 12, and when the sealing gasket 4 is abutted against the sealing surface 14, the filling channel 13 can be closed; the first limiting surface 15 is arranged on the inner wall of the filling channel 13 at a position between the sealing surface 14 and the first end surface 11, the second limiting surface 23 is matched with the first limiting surface 15, when the second limiting surface 23 is abutted against the first limiting surface 15, on one hand, the movement of the core rod 2 can be limited, the overpressure deformation of the sealing gasket 4 is avoided, on the other hand, a sealing structure can be formed, and the sealing effect is improved;
the core bar 2 is arranged in the filling channel 13; the third end face 21 of the core rod 2 protrudes from the first end face 11, and the fourth end face 22 of the core rod 2 protrudes from the second end face 12; an elastic piece 3 is arranged between the third end face 21 and the first end face 11, the elastic piece 3 enables the core rod 2 to have a trend of moving in the direction from the second end face 12 to the first end face 11, when the core rod 2 is not subjected to external force, the sealing gasket 4 is always abutted against the sealing face 14 under the action of the elastic piece 3, and the filling channel 13 is kept in a closed state; the sealing gasket 4 is positioned at the position of the core rod 2 close to the fourth end surface 22 and moves along with the core rod 2; the second limiting surface 23 is circumferentially arranged on the core rod 2 and synchronously moves along with the core rod 2.
It should be noted that, the core rod 2 is movable between a first position, a second position, and a third position, and the second position is located between the first position and the third position; as shown in fig. 2, when the core rod 2 is at the second position, the gasket 4 is subjected to a lower pressure (lower than 3 MP), and under the action of the lower pressure, the gasket 4 abuts against the sealing surface 14 to close the filling channel 13, and at this time, a gap is formed between the first limiting surface 15 and the second limiting surface 23; when an external force is applied to the core rod 2 from the first end face 11 to the second end face 12 to enable the core rod 2 to move downwards, the core rod 2 can move to a first position, at the moment, a gap is reserved between the sealing gasket 4 and the sealing face 14, and the filling channel 13 is opened to be capable of filling refrigerant; when the sealing gasket 4 receives higher pressure (higher than 3 MP), the core rod 2 can move upwards to a third position, at this moment, the sealing gasket 4 is abutted with the sealing surface 14, and meanwhile, the first limiting surface 15 is abutted with the second limiting surface 23, so that the core rod 2 can be limited to move upwards further when a double-sealing structure is formed, the overpressure deformation of the sealing gasket 4 is avoided, and the sealing stability is improved.
In the present embodiment, referring to fig. 1 and 2, the sealing surface 14 is provided as a tapered surface inclined outwardly in a direction from the first end surface 11 to the second end surface 12; the maximum diameter of the conical surface is larger than the outer diameter of the sealing gasket 4, and the minimum diameter of the conical surface is smaller than the outer diameter of the sealing gasket 4, so that the sealing gasket 4 is in full and tight abutting connection with the conical surface when the filling channel 13 is closed.
In this embodiment, referring to fig. 1 and 2, the first limiting surface 15 is set to be a second circular plane perpendicular to the axis of the filling channel 13, and the filling channel 13 is stepped at the first limiting surface 15; the second limiting surface 23 is a third circular ring plane perpendicular to the axis of the filling channel 13, the core bar 2 is in a step shape at the second limiting surface 23, when the first limiting surface 15 is abutted against the second limiting surface 23, the core bar 2 is in contact with the core body 1 by a metal surface, so that the core bar 2 can be tightly attached, and a certain sealing effect is achieved while the core bar 2 is limited to move; specifically, the major diameter of the third annular plane is larger than the minor diameter of the second annular plane, so that the first limiting surface 15 can be abutted with the second limiting surface 23 in the moving process of the core rod 2; further, the major diameter of the third annular plane is smaller than that of the second annular plane, and the minor diameter of the third annular plane is smaller than that of the second annular plane, so that the core rod 2 can move smoothly in the filling channel 13; in other embodiments, the first limiting surface 15 and the second limiting surface 23 may be inclined surfaces, and the inclination angles of the first limiting surface 15 and the second limiting surface 23 are the same, so that the first limiting surface 15 and the second limiting surface 23 are guaranteed to be in surface contact when in abutting contact, and the core rod 2 can be effectively sealed and limited to move.
In this embodiment, referring to fig. 1 and 2, in the second position, the gap width between the first limiting surface 15 and the second limiting surface 23 is preferably 0.25-0.4mm, so that the sealing gasket 4 can maintain the optimal deformation amount and ensure the sealing effectiveness under the high pressure effect.
In this embodiment, referring to fig. 1, an external thread 16 is provided on an outer wall surface of the core 1, and the core 1 can be conveniently and tightly mounted on an automobile air conditioner through the external thread 16.
In this embodiment, referring to fig. 1, a circumferential waist groove is formed on the outer wall surface of the core 1, a sealing ring 5 is embedded in the waist groove, and the surface of the sealing ring 5 protrudes from the outer wall surface of the core 1, so that the tightness of the core 1 after installation can be improved.
In this embodiment, referring to fig. 1, a stop 24 is disposed at the third end surface 21, one end of the elastic member 3 abuts against the stop 24, the other end of the elastic member 3 abuts against the first end surface 11, the elastic member 3 is in a compressed state, and the elastic member 3 stably applies an elastic force to the core rod 2 in a direction from the second end surface 12 to the first end surface 11; further, the elastic element 3 is preferably a spring, and the spring is sleeved on the core bar 2; in other embodiments, the elastic member 3 may be a spring.
In this embodiment, referring to fig. 1, a positioning table 25 is disposed on the fourth end face 22, the sealing pad 4 is sleeved on the core rod 2, one end of the sealing pad 4 away from the core body 1 is abutted against the positioning table 25, the positioning table 25 can effectively fix and position the sealing pad 4, so that the filling channel 13 can be effectively plugged when the sealing pad 4 is abutted against the sealing surface 14, and the tightness is ensured.
Example two
Referring to fig. 3 and 4, the main difference between the present embodiment and the first embodiment is that the sealing surface 14 is a first circular plane perpendicular to the axis of the filling channel 13, and the filling channel 13 is stepped at the sealing surface 14; the major diameter of the first annular plane should be not smaller than the outer diameter of the gasket 4, and the minor diameter of the first annular plane should be smaller than the outer diameter of the gasket 4, so that the gasket 4 is in full and tight abutment with the sealing surface 14 when the filling channel 13 is closed.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. Novel high-pressure protection refrigerating system seal structure, its characterized in that includes:
a core having a first end face and a second end face, the core having a filling channel therein communicating the first end face with the second end face; a sealing surface is arranged on the inner wall of the filling channel at a position close to the second end surface; a first limiting surface is arranged on the inner wall of the filling channel at a position between the sealing surface and the first end surface;
the core rod is arranged in the filling channel; the core rod has a third end face and a fourth end face, the third end face extending from the first end face, the fourth end face extending from the second end face; an elastic piece is arranged between the third end face and the first end face, and the elastic piece applies elastic force to the core bar in the direction from the second end face to the first end face; a sealing gasket is arranged at the position of the core rod close to the fourth end face; the peripheral surface of the core bar is provided with a second limiting surface;
the core rod is movable between a first position, a second position and a third position, the second position being located between the first position and the third position; in the first position, a gap is formed between the sealing gasket and the sealing surface, and the filling channel is in an open state; when the filling channel is in a closed state, the sealing gasket is in butt joint with the sealing surface, a gap is reserved between the first limiting surface and the second limiting surface; when the sealing gasket is in the third position, the sealing gasket is abutted with the sealing surface, the first limiting surface is abutted with the second limiting surface, and the filling channel is in a closed state.
2. The novel high-pressure protection refrigeration system sealing structure according to claim 1, wherein the sealing surface is provided with a conical surface, and the conical surface is inclined outwards in the direction from the first end surface to the second end surface; the maximum diameter of the conical surface is larger than the outer diameter of the sealing gasket, and the minimum diameter of the conical surface is smaller than the outer diameter of the sealing gasket.
3. The novel high-pressure protection refrigeration system sealing structure according to claim 1, wherein the sealing surface is a first circular ring plane perpendicular to the axis of the filling channel; the major diameter of the first circular ring plane is not smaller than the outer diameter of the sealing gasket, and the minor diameter of the first circular ring plane is smaller than the outer diameter of the sealing gasket.
4. A novel high-pressure protection refrigeration system sealing structure according to claim 1, 2 or 3, wherein the first limiting surface is a second circular ring plane perpendicular to the axis of the filling channel, and the second limiting surface is a third circular ring plane perpendicular to the axis of the filling channel; the major diameter of the third annular plane is greater than the minor diameter of the second annular plane.
5. The seal structure of a novel high pressure protection refrigeration system as recited in claim 4 wherein, in said second position, the gap width between said first and second stop surfaces is 0.25-0.4mm.
6. The novel high-pressure protection refrigeration system sealing structure according to claim 1, wherein external threads are arranged on the outer wall surface of the core body.
7. The sealing structure of a novel high-pressure protection refrigeration system according to claim 1, wherein a waist groove which is circumferentially arranged is formed in the outer wall surface of the core body, and a sealing ring is embedded in the waist groove.
8. The sealing structure of a novel high-pressure protection refrigeration system according to claim 1, wherein a baffle is arranged at the third end face, one end of the elastic piece is abutted to the baffle, the other end of the elastic piece is abutted to the first end face, and the elastic piece is in a compressed state.
9. The sealing structure of a novel high-pressure protection refrigeration system according to claim 1 or 8, wherein the elastic member is a spring, and the spring is sleeved on the core rod.
10. The sealing structure of a novel high-pressure protection refrigeration system according to claim 1, wherein a positioning table is arranged on the fourth end face, the sealing gasket is sleeved on the core rod, and one end, far away from the core body, of the sealing gasket is abutted to the positioning table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320467178.1U CN220118643U (en) | 2023-03-13 | 2023-03-13 | Novel sealing structure of high-pressure protection refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320467178.1U CN220118643U (en) | 2023-03-13 | 2023-03-13 | Novel sealing structure of high-pressure protection refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220118643U true CN220118643U (en) | 2023-12-01 |
Family
ID=88892698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320467178.1U Active CN220118643U (en) | 2023-03-13 | 2023-03-13 | Novel sealing structure of high-pressure protection refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220118643U (en) |
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2023
- 2023-03-13 CN CN202320467178.1U patent/CN220118643U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 261500 No. 1908, Fenghuang Street (West), Liquan street, Gaomi City, Weifang City, Shandong Province Patentee after: Shandong Tongchuang Precision Technology Co.,Ltd. Country or region after: China Patentee after: SHANDONG HIMILE VALVE Co.,Ltd. Address before: 261500 No. 1908, Fenghuang Street (West), Liquan street, Gaomi City, Weifang City, Shandong Province Patentee before: GAOMI TONGCHUANG VALVE CORE Co.,Ltd. Country or region before: China Patentee before: SHANDONG HIMILE VALVE Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 261500 no.1908, Fenghuang Street (West), Liquan street, Gaomi City, Weifang City, Shandong Province Patentee after: Shandong Tongchuang Precision Technology Co.,Ltd. Country or region after: China Patentee after: SHANDONG HIMILE VALVE Co.,Ltd. Address before: 261500 No. 1908, Fenghuang Street (West), Liquan street, Gaomi City, Weifang City, Shandong Province Patentee before: Shandong Tongchuang Precision Technology Co.,Ltd. Country or region before: China Patentee before: SHANDONG HIMILE VALVE Co.,Ltd. |