Self-elastic anti-lost valve

Abstract

A body seat is installed on a shell of an external container in a sealed mode, one end of a rotary knob cover is screwed in the body seat through threads, the rotary knob cover is connected with the body seat through a sealing ring, a valve element piece is inserted in the body seat, and the valve element piece is sealed with the body seat through the sealing ring. The knob cover and the valve element piece are connected into a whole through the bridging base, a containing cavity is formed in the body base, the valve element piece is provided with an air passing channel communicated with the containing cavity, a spring is installed on the bridging base and / or the valve element piece, and a limiting piece is installed on the valve element piece. Therefore, when a user unscrews the knob cover, the spring pushes the knob cover and the valve element piece backwards and automatically pops up, air exhausting, liquid discharging and closing can be carried out, the knob cover is directly screwed and fixed, the inner hole of the body seat can be sealed, the knob cover is installed in a limited mode and cannot be lost, the functions of cover losing prevention and sealed air exhausting are achieved, operation is very easy, and operation is convenient. Therefore, the product grade is effectively improved, and actual use requirements of users are greatly met.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a self-elastic anti-lost valve. Background Art

[0002] As we all know, valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems range from the simplest shutoff valves to various valves used in extremely complex automatic control systems;

[0003] The existing exhaust and drain covers are generally sealed, but the covers are not connected to the cup body and have no anti-loss function, so the covers are very easy to be lost. Another type of exhaust and drain cover has a soft connection with the body and has the function of an anti-loss cover, such as the deflation cover of a swimming ring. However, its sealing performance is poor, and it will fall off and leak fluid when subjected to high pressure, and it needs to be dragged hard to open. Some deflation valves also require special tools to open. The valves and covers of the above structures are not convenient to use in terms of function, performance, and convenience. Therefore, the above defects are very obvious. For this reason, we propose a self-elastic anti-loss valve to solve the above problems. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a self-elastic anti-lost valve.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-elastic anti-lost valve, comprising a knob cover, a body seat, a bridge seat, and a valve core member, wherein the body seat is a hollow structure and is sealed and mounted on a shell of an external container, the inner hole of the body seat is communicated with the inner cavity of the shell, one end of the knob cover is screwed on one end of the inner hole of the body seat through a screw thread, one end of the knob cover is sealed with the inner hole of the body seat through a sealing ring, the valve core member is inserted into the other end of the inner hole of the body seat, the peripheral side of the valve core member is sealed with the inner hole of the body seat through a sealing ring, and the bridge seat connects the knob cover and the valve core member into a whole The valve core piece is provided with an air passage connected with the accommodating cavity, and a spring is installed on the bridging seat and / or the valve core piece and in the accommodating cavity. The spring contacts the front end of the knob cover and is compressed, and a limit piece with a diameter larger than the inner hole of the main body seat is installed on the exposed end of the valve core piece. When in use, the knob cover is loosened, and the knob cover is automatically popped out backwards under the action of the spring force, so that the air passage and the accommodating cavity are connected with the atmosphere outside the shell through the inner hole of the main body seat.

[0007] Preferably, a through step hole is provided on the shell, the main body seat is adapted to be installed in the step hole with the front end exposed, a limiting piece is installed on the exposed end of the main body seat, and the main body seat is fixed in the step hole, a flat surface is provided at the front end of the main body seat, a platform surface adapted to the flat surface is provided in the step hole, and the peripheral side surface of the main body seat is sealed to the inner wall of the step hole through a sealing ring.

[0008] Preferably, the bridge seat is a hollow structure, one end of the inner hole of the bridge seat is screwed to the front end of the knob cover, and the rear end of the valve core member is screwed to the other end of the inner hole of the bridge seat by screw threads.

[0009] Preferably, the knob cover, the body seat and the circumferential side surfaces of the valve core member are all provided with an annular groove, and the sealing ring is installed in the annular groove.

[0010] Preferably, a rear end surface of the knob cover is provided with an alignment groove adapted to an external wrench or screwdriver.

[0011] Preferably, the exposed end of the knob cover is provided with anti-slip grooves.

[0012] Preferably, the limiting member is a shaft retaining spring.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, due to the adoption of the above scheme, the knob cover is screwed to the inner hole of the main body seat by means of screw threads, the bridge seat connects the knob cover and the valve core piece as a whole and is installed in the main body seat, the knob cover and the valve core piece seal the two ends of the inner hole of the main body seat by means of a sealing ring, and the exposed end of the valve core piece limits its moving stroke by means of a limit piece, so when the user loosens the knob cover, the spring pushes the knob cover and the valve core piece backwards and automatically pops out, so that the air passage and the accommodating cavity are connected to the outer surface of the shell through the inner hole of the main body seat, and the valve core piece is connected to the outer surface of the shell through the inner hole of the main body seat. It can be used for exhaust and drainage. When closing, the knob cover is directly screwed onto the inner hole of the main body seat. The sealing ring on the knob cover and the valve core can seal the inner hole of the main body seat. Therefore, when the user uses it, the knob cover is limited at the inner hole of the main body seat and will not be lost. When exhausting or draining, the user only needs to loosen the knob cover. Therefore, this device not only has the function of protecting the cover from loss and sealing, but also is very easy and convenient to operate. Therefore, it has multiple practical functions, stable sealing performance, effectively improves the product grade, and greatly meets the actual use needs of users. It has a simple structure, convenient operation, and is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an axonometric diagram of an embodiment of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the installation of the limiting member in the embodiment of the utility model.

[0016] Figure 3 It is a cross-sectional view of the closed state of the embodiment of the utility model.

[0017] Figure 4 It is a cross-sectional view of an embodiment of the utility model in an open state.

[0018] Figure 5 It is an exploded view of an embodiment of the utility model.

[0019] In the figure:

[0020] 1. Knob cover; 2. Main body seat; 3. Bridge seat; 4. Valve core member; 5. Shell; 6. Sealing ring; 7. Accommodating chamber; 8. Air passage; 9. Spring; 10. Limiting member; 11. Step hole; 12. Flat position; 13. Platform surface; 14. Screw; 15. Annular groove; 16. Anti-slip pattern; 17. Alignment groove; 18. Screw thread. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper end", "lower end", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] like Figures 1 to 5 As shown, a self-elastic anti-lost valve provided in this embodiment includes a knob cover 1, a body seat 2, a bridge seat 3, and a valve core member 4. The body seat 2 is a hollow structure and is sealed and installed on a shell 5 of an external container. The inner hole of the body seat 2 is connected to the inner cavity of the shell 5. One end of the knob cover 1 is screwed on one end of the inner hole of the body seat 2 through a screw thread 18. One end of the knob cover 1 is sealed with the inner hole of the body seat 2 through a sealing ring 6. The valve core member 4 is inserted into the other end of the inner hole of the body seat 2. The peripheral side of the valve core member 4 is sealed with the inner hole of the body seat 2 through the sealing ring 6. The bridge seat 3 connects the knob cover 1 and the valve core member 4. The main body seat 2 is integrated with the valve core member 4, and the inner hole of the main body seat 2 is provided with a receiving cavity 7. The outer end of the valve core member 4 is provided with an air passage 8 connected with the receiving cavity 7. A spring 9 is installed on the bridging seat 3 and / or the valve core member 4 and located in the receiving cavity 7. The spring 9 touches the front end of the knob cover 1 and is compressed. The exposed end of the valve core member 4 is provided with a limit member 10 with a diameter larger than the inner hole of the main body seat 2. When in use, the knob cover 1 is loosened, and the knob cover 1 is automatically popped out backwards under the elastic force of the spring 9, so that the air passage 8 and the receiving cavity 7 are connected with the atmosphere outside the shell 5 through the inner hole of the main body seat 2, thereby realizing the exhaust and liquid discharge of the container.

[0025] When the present embodiment is actually working, first, the user loosens the knob cover 1. Under the elastic force of the spring 9, the spring 9 pushes the knob cover 1 and the valve core 4 backward and pops out automatically. The sealing ring 6 on the knob cover 1 is also popped out of the inner hole of the body seat 2. At this time, the air passage 8 and the accommodating chamber 7 are connected with the outer surface of the shell 5 through the inner hole of the body seat 2, so that the exhaust and liquid discharge operations can be carried out. The gas or liquid passes through the air passage 8, the accommodating chamber 7, the inner hole of the body seat 2, and the peripheral side of the knob cover 1 in turn. The front end of the knob cover 1 is screwed onto the screw thread 18 of the inner hole of the main body seat 2, and the knob cover 1 and the sealing ring 6 installed thereon can directly seal the rear end of the inner hole of the main body seat 2. Therefore, when the user uses it, the knob cover 1 is limited at the inner hole of the main body seat 2 and will not be lost. When exhausting or draining, the user only needs to loosen the knob cover 1. Therefore, this device not only has the function of preventing the cover from being lost and sealing, but also is very easy and convenient to operate. Therefore, it has multiple practical functions and stable sealing performance, which greatly meets the actual use needs of users.

[0026] Furthermore, the housing 5 of the present embodiment is provided with a through stepped hole 11, the body seat 2 is adapted to be installed in the stepped hole 11, and the front end is exposed, the exposed end of the body seat 2 is provided with a limiting member 10, and the body seat 2 is fixed in the stepped hole 11, the front end of the body seat 2 is provided with a flat surface 12, the stepped hole 11 is provided with a platform surface 13 adapted to the flat surface 12, and the peripheral side surface of the body seat 2 is sealed with the inner wall of the stepped hole 11 through a sealing ring 6. Therefore, the body seat 2 is stably installed, sealed, and limited in the stepped hole 11, and the internal structure of the body seat 2 is relatively complex, and can be machined separately to reduce the processing cost. At the same time, the above structure is also convenient for the installation and fixation of the device, and convenient for actual assembly.

[0027] Furthermore, the bridge seat 3 of this embodiment is a hollow structure, one end of the inner hole of the bridge seat 3 is screwed to the front end of the knob cover 1 by a screw 14, and the rear end of the valve core member 4 is screwed to the other end of the inner hole of the bridge seat 3 by a screw thread 18. Therefore, by using the above structure, the knob cover 1 and the valve core member 4 can be connected as a whole through the bridge seat 3, thereby facilitating actual processing and assembly and saving costs.

[0028] Furthermore, the knob cover 1, the body seat 2, and the valve core member 4 of this embodiment are all provided with an annular groove 15, and the sealing ring 6 is installed in the annular groove 15. The annular groove 15 is provided to facilitate the installation of the sealing ring 6 and facilitate the actual assembly, and at the same time, the sealing ring 6 is effectively limited in the annular groove 15, thereby improving the stability of the seal.

[0029] Furthermore, the exposed end of the knob cover 1 of this embodiment is provided with anti-skid patterns 16. The anti-skid patterns 16 can provide friction and improve the stability of the user manually turning the knob cover 1.

[0030] Furthermore, the rear end surface of the knob cover 1 of this embodiment is provided with an alignment groove 17 adapted to an external wrench or screwdriver. Therefore, the user can use a wrench or screwdriver inserted in the alignment groove 17 to tighten or loosen the knob cover 1, which is convenient for the user to operate.

[0031] Furthermore, the limiting member 10 of this embodiment is a shaft retaining spring. A retaining spring is also called a retaining ring or a snap ring, which is a kind of fastener and is installed in a shaft groove or a hole groove of a machine or equipment to prevent the axial movement of parts on the shaft or hole. Therefore, the retaining spring can stably limit the main body seat 2 in the stepped hole 11, and can also effectively limit the axial movement distance of the valve core member 4, which is also convenient for actual assembly.

[0032] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A self-elastic anti-lost valve, characterized in that: The valve core component is inserted into the other end of the inner hole of the body seat, and the peripheral side surface of the valve core component is sealed with the inner hole of the body seat through a sealing ring. The bridge seat connects the knob cover and the valve core component as a whole. The inner hole of the body seat is provided with an accommodating cavity, and the outer end of the valve core component is provided with an air passage connected with the accommodating cavity. A spring is installed on the bridge seat and / or the valve core component and located in the accommodating cavity. The spring touches the front end of the knob cover, and the exposed end of the valve core component is provided with a limiter having a diameter larger than the inner hole of the body seat.

2. A self-elastic anti-loss valve as claimed in claim 1, characterized in that: The shell is provided with a through step hole, the main body seat is adapted to be installed in the step hole with the front end exposed, a limiting piece is installed on the exposed end of the main body seat, and the main body seat is fixed in the step hole, a flat surface is provided at the front end of the main body seat, a platform surface adapted to the flat surface is provided in the step hole, and the peripheral side surface of the main body seat is sealed with the inner wall of the step hole through a sealing ring.

3. A self-elastic anti-loss valve as claimed in claim 1, characterized in that: The bridge seat is a hollow structure, one end of the inner hole of the bridge seat is screwed to the front end of the knob cover by a screw, and the rear end of the valve core piece is screwed to the other end of the inner hole of the bridge seat by a screw thread.

4. A self-elastic anti-loss valve as claimed in claim 1, characterized in that: The knob cover, the body seat and the circumferential side surfaces of the valve core are all provided with an annular groove, and the sealing ring is installed in the annular groove.

5. The self-elastic anti-loss valve according to claim 1, characterized in that: The rear end surface of the knob cover is provided with an alignment groove adapted to an external wrench or a screwdriver.

6. A self-elastic anti-loss valve as claimed in claim 1, characterized in that: The exposed end of the knob cover is provided with anti-slip grooves.

7. A self-elastic anti-loss valve as claimed in claim 1 or 2, characterized in that: The limiting member is a shaft retaining spring.

Images