Valve cap with sealing structure
By adopting an inflatable and expanded annular rubber airbag and plug oil storage chamber in the valve cap, the problem of degradation of sealing in the traditional valve cap is solved, and higher sealing performance and use stability are achieved.
Patent Information
- Application Number
- CN202420549545.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The sealing of traditional valve caps is reduced due to wear during opening and closing, and the sealing of the connection cannot be effectively guaranteed.
A valve cap with a sealing structure was designed, and a T-shaped metal cover consists of a connecting ring, a sealing ring, annular rubber airbag, etc. The gap is filled by inflation to improve sealing, and a plug is embedded in the sealing ring and Oil storage chamber to enhance sealing effect.
The gap is filled with the inflatable and expanded annular rubber airbags, which significantly improves the sealing performance at the valve connection, ensures sealing during long-term use, and avoids rust and disassembly difficulties through the oil storage chamber and plug.
Smart Images
Figure CN222229601U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cover cap, in particular to a valve cover cap with a sealing structure, belonging to the technical field of valve accessories. Background Art
[0002] The valve cap is one of the important accessories of the valve. The valve cap is nested at the end of the valve connecting shaft to ensure the sealing of the connection, thereby improving the sealing between the valve connecting shaft and the valve body.
[0003] Traditional valve caps mainly use a combination of metal ferrules and sealing gaskets to seal the end of the valve connecting shaft. When using this method for sealing, the valve connecting shaft needs to rotate continuously during the process of opening and closing the valve. The long-term rotation wear can easily affect the sealing of the metal ferrule. For this reason, we have designed a valve cap with a sealing structure. Utility Model Content
[0004] The utility model aims to provide a valve cap with a sealing structure to solve the problem in the background art that the sealing of the connection between the current cap and the valve connecting shaft cannot be guaranteed during the sleeve installation process.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a T-shaped metal cover and a valve connecting shaft, the T-shaped metal cover is composed of a connecting ring and a sealing ring, one end of the connecting ring is fixedly provided with a sealing ring connected as an integral whole, the side of the sealing ring is fitted with a metal gasket, the surface of the connecting ring is sleeved with an elastic sealing ring, the interior of the connecting ring is sleeved with the valve connecting shaft, a plurality of annular rubber airbags are fixedly provided at equal intervals on the inner wall of the connecting ring, an airway is opened inside the connecting ring, and the airway is connected to the air inlet end of the annular rubber airbag.
[0006] Preferably, an inflation hole communicating with the airway is provided at the bottom of one side of the connecting ring, and a sealing plug is embedded in the inflation hole.
[0007] Preferably, the size of the metal gasket is the same as that of the sealing ring.
[0008] Preferably, the connecting ring and the sealing ring are integrally formed.
[0009] Preferably, the valve connecting shaft and the connecting ring are provided with evenly distributed anti-slip grooves.
[0010] Preferably, the inner wall of the sealing ring is chamfered.
[0011] Preferably, a plug is nested at the center of the sealing ring, an oil storage cavity is opened inside the plug, an oil seepage hole is opened at the bottom end of the oil storage cavity, an oil filling hole is opened at the top end of the oil storage cavity, and a rubber plug is nested inside the oil filling hole.
[0012] Compared with the prior art, the utility model has the following beneficial effects: by providing an annular rubber airbag on the inner wall of the connecting ring, when the valve connecting shaft and the connecting ring are sleeved, the annular rubber airbag is inflated through the inflation hole, and the annular rubber airbag is inflated to fill the gap at the connection between the valve connecting shaft and the connecting ring, which can effectively ensure the sealing of the connection and improve the sealing performance of the T-shaped metal cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a structural schematic diagram of a valve cover cap with a sealing structure of the utility model;
[0014] Figure 2 This is a schematic cross-sectional structure diagram of a valve cover cap with a sealing structure according to the utility model;
[0015] Figure 3 The utility model is a schematic diagram of a ring-shaped rubber airbag connection structure of a valve cover cap with a sealing structure.
[0016] In the figure: 1. T-shaped metal cover; 2. connecting ring; 3. sealing ring; 4. annular rubber airbag; 5. metal gasket; 6. inflation hole; 7. sealing plug; 8. elastic sealing ring; 9. valve connecting shaft; 10. plug; 11. oil filling hole; 12. rubber plug; 13. oil storage chamber; 14. oil seepage hole. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-3 The utility model provides a technical solution of a valve cap with a sealing structure:
[0019] according to Figure 1-3As shown, it includes a T-shaped metal cover 1 and a valve connecting shaft 9. The T-shaped metal cover 1 is composed of a connecting ring 2 and a sealing ring 3. One end of the connecting ring 2 is fixedly provided with a sealing ring 3 connected as an integral whole. The side of the sealing ring 3 is fitted with a metal gasket 5. The surface of the connecting ring 2 is sleeved with an elastic sealing ring 8. The inside of the connecting ring 2 is sleeved with a valve connecting shaft 9. The inner wall of the connecting ring 2 is equidistantly fixed with a plurality of annular rubber airbags 4. An airway is opened inside the connecting ring 2, and the airway is connected to the air inlet end of the annular rubber airbag 4. Through the annular rubber airbag 4 provided on the inner wall of the connecting ring 2, when the valve connecting shaft 9 and the connecting ring 2 are sleeved, the annular rubber airbag 4 is inflated through the inflation hole 6. The annular rubber airbag 4 is inflated and expanded to fill the gap at the connection between the valve connecting shaft 9 and the connecting ring 2, which can effectively ensure the sealing of the connection and improve the sealing performance of the T-shaped metal cover 1.
[0020] according to Figure 1 and Figure 2 As shown, an inflation hole 6 communicating with the airway is provided at the bottom of one side of the connecting ring 2, and a sealing plug 7 is embedded in the inflation hole 6. The annular rubber airbag 4 can be inflated conveniently through the inflation hole 6.
[0021] The size of the metal gasket 5 is the same as that of the sealing ring 3. The provision of the metal gasket 5 increases the sealing performance between the T-shaped metal cover 1 and the connection.
[0022] The connecting ring 2 and the sealing ring 3 are integrally formed, which facilitates the production of the cap.
[0023] The sleeve portions of the valve connecting shaft 9 and the connecting ring 2 are provided with uniformly distributed anti-skid patterns, and the firmness of the sleeves of the valve connecting shaft 9 and the connecting ring 2 is increased by the provided anti-skid patterns.
[0024] The inner wall of the sealing ring 3 is provided with a chamfer, and the stress of the sealing ring 3 is increased by the chamfer.
[0025] A plug 10 is nested at the center of the sealing ring 3, an oil storage chamber 13 is formed inside the plug 10, an oil seepage hole 14 is formed at the bottom of the oil storage chamber 13, an oil injection hole 11 is formed at the top of the oil storage chamber 13, and a rubber plug 12 is nested inside the oil injection hole 11.
[0026] Specifically, by nesting the plug 10, the end head can be sealed, and an oil storage chamber 13 is opened inside the plug 10. The oil inside the oil storage chamber 13 seeps out through the oil seepage hole 14. On the one hand, the oil seal further increases the sealing performance, and on the other hand, it avoids rust on the connection part, which affects the later disassembly between the valve cap and the connecting shaft.
[0027] During specific use, the utility model provides a valve cover cap with a sealing structure. When using the T-shaped metal cover 1 matched with the valve connecting shaft 9, firstly, the T-shaped metal cover 1 is sleeved on the end of the valve connecting shaft 9, and then the inflation hole 6 is opened manually, and the inflation hole 6 is connected to an external air pump. Air is inflated through the inflation hole 6 of the air pump box, so that the annular rubber airbag 4 inside the connecting ring 2 is expanded. Through the expansion of the annular rubber airbag 4, the gap at the connection between the valve connecting shaft 9 and the connecting ring 2 is filled, thereby improving the sealing performance of the T-shaped metal cover 1 and the valve connecting shaft 9.
[0028] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.
Claims
1. A valve cap with a sealing structure, comprising a T-shaped metal cover (1) and a valve connecting shaft (9), characterized in that: The T-shaped metal cover (1) is composed of a connecting ring (2) and a sealing ring (3); one end of the connecting ring (2) is fixedly provided with an integral sealing ring (3); the side of the sealing ring (3) is fitted with a metal gasket (5); the surface of the connecting ring (2) is sleeved with an elastic sealing ring (8); the interior of the connecting ring (2) is sleeved with a valve connecting shaft (9); a plurality of annular rubber airbags (4) are fixedly provided at equal intervals on the inner wall of the connecting ring (2); an air passage is opened inside the connecting ring (2); and the air passage is connected to the air inlet end of the annular rubber airbag (4).
2. The valve cap with a sealing structure according to claim 1, characterized in that: An air filling hole (6) communicating with the airway is provided at the bottom of one side of the connecting ring (2), and a sealing plug (7) is embedded inside the air filling hole (6).
3. The valve cap with a sealing structure according to claim 1, characterized in that: The size of the metal gasket (5) is the same as that of the sealing ring (3).
4. The valve cap with a sealing structure according to claim 1, characterized in that: The connecting ring (2) and the sealing ring (3) are integrally formed.
5. The valve cap with a sealing structure according to claim 1, characterized in that: The sleeved portion of the valve connecting shaft (9) and the connecting sleeve ring (2) is provided with evenly distributed anti-slip grooves.
6. The valve cap with a sealing structure according to claim 1, characterized in that: The inner wall of the sealing ring (3) is provided with a chamfer.
7. The valve cap with a sealing structure according to claim 1, characterized in that: A plug (10) is nested at the center of the sealing ring (3), an oil storage chamber (13) is provided inside the plug (10), an oil seepage hole (14) is provided at the bottom end of the oil storage chamber (13), an oil injection hole (11) is provided at the top end of the oil storage chamber (13), and a rubber plug (12) is nested inside the oil injection hole (11).