Flow regulating valve element

Abstract

The utility model provides a flow regulating valve element, and belongs to the technical field of valves. The problems that an existing valve element cannot efficiently adjust and control the flow, the overall assembling stability is not high, and the service life and the using effect are affected are solved. The flow adjusting valve element comprises a valve body and a valve bonnet in threaded connection with the valve body, a valve rod is arranged in the valve body, the top end of the valve rod penetrates out of the valve bonnet, the valve rod can be adjusted up and down, the bottom end of the valve rod penetrates out of the valve body and is sequentially connected with a sealing gland and a sealing gasket, the bottom end of the valve bonnet extends into the valve body, and an elastic piece arranged on the valve rod in a sleeving mode is arranged in the valve bonnet. The valve rod is provided with an abutting table for one end of the elastic piece to abut against, a stainless steel gasket for the other end of the elastic piece to abut against is installed in the valve body, and a clamp spring structure for fixing the valve rod is arranged at the bottom of the sealing gasket. The valve has the advantages of being high in assembly stability, high in sealing performance and capable of adjusting the flow.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves and relates to a valve core, in particular to a flow regulating valve core. Background Art

[0002] The current valve core has a simple structure and cannot efficiently adjust the control flow rate. In addition, the overall assembly stability is not high, which affects the service life and use effect. Summary of the invention

[0003] The utility model aims to provide a flow regulating valve core with high stability and long service life in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a flow regulating valve core, characterized in that it includes a valve body and a valve cap threadedly connected to the valve body, a valve stem with a top end passing through the valve cap and capable of being adjusted up and down is arranged in the valve body, the bottom end of the valve stem passes through the valve body and is sequentially connected with a sealing gland and a sealing gasket, the bottom end of the valve cap extends into the valve body, and an elastic member sleeved on the valve stem is arranged in the valve cap, the valve stem is provided with a butt platform for one end of the elastic member to butt against, a stainless steel gasket for the other end of the elastic member to butt against is installed in the valve body, and a retaining spring structure for fixing the valve stem is arranged at the bottom of the sealing gasket;

[0005] The retaining spring structure is composed of a supporting layer and a bowl-shaped chuck. The chuck is provided with a star-shaped slot. The middle of the star-shaped slot is for the bottom end of the valve stem to pass through. The star-shaped slot has a plurality of circumferentially arranged star-shaped slots. A clamping portion for clamping the valve stem is formed between the plurality of star-shaped slots.

[0006] In the above-mentioned flow regulating valve core, the elastic member is a variable pitch spring.

[0007] In the above-mentioned flow regulating valve core, the valve stem is marked with flow scale values.

[0008] In the above-mentioned flow regulating valve core, sealing rings are arranged on the valve body, between the valve body and the valve cap, and between the valve cap and the valve stem.

[0009] Compared with the prior art, the flow regulating valve core has the advantages of highly stable assembly, high sealing performance and the ability to adjust the flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of the flow regulating valve core.

[0011] Figure 2 This is the internal structure diagram of the flow control valve core.

[0012] In the figure, 1. valve body; 2. valve bonnet; 3. valve stem; 4. sealing gland; 5. sealing gasket; 6. elastic member; 7. abutment platform; 8. stainless steel gasket; 9. abutment layer; 10. chuck; 11. star-shaped slot; 12. star-shaped slot; 13. clamping part; 14. sealing ring. DETAILED DESCRIPTION

[0013] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0014] like Figure 1 , Figure 2 As shown, the flow regulating valve core comprises a valve body 1 and a valve bonnet 2 threadedly connected to the valve body 1, a valve stem 3 is arranged in the valve body 1, the top end of the valve stem 3 passes through the outside of the valve bonnet 2 and can be adjusted up and down, the flow rate is controlled by adjusting the valve stem 3 up and down, the bottom end of the valve stem 3 passes through the outside of the valve body 1 and is connected with a sealing gland 4 and a sealing gasket 5 in sequence, the bottom end of the valve bonnet 2 extends into the valve body 1, and an elastic member 6 sleeved on the valve stem 3 is arranged in the valve bonnet 2, the valve stem 3 is provided with a supporting platform 7 for one end of the elastic member 6 to abut, a stainless steel gasket 8 for the other end of the elastic member 6 to abut is installed in the valve body 1, and a retaining spring structure for fixing the valve stem 3 is provided at the bottom of the sealing gasket 5.

[0015] To explain in further detail, the retaining spring structure is composed of a supporting layer 9 and a bowl-shaped chuck 10, the chuck 10 is provided with a star-shaped retaining groove 11, the middle part of the star-shaped retaining groove 11 is for the bottom end of the valve stem 3 to pass through, the star-shaped retaining groove 11 is provided with a plurality of circumferentially arranged star-shaped grooves 12, and a retaining portion 13 for retaining the valve stem 3 is formed between the plurality of star-shaped grooves 12. This structure makes the fixation of the valve stem 3 more stable.

[0016] To further elaborate, the elastic member 6 is a variable-pitch spring, which has the advantages of being more stable and durable.

[0017] Preferably, the valve stem 3 is marked with flow scale values.

[0018] Preferably, sealing rings 14 are provided on the valve body 1 , between the valve body 1 and the valve bonnet 2 , and between the valve bonnet 2 and the valve stem 3 .

[0019] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0020] Although the terms valve body 1, valve bonnet 2, valve stem 3, sealing gland 4, sealing gasket 5, elastic member 6, abutment platform 7, stainless steel gasket 8, abutment layer 9, chuck 10, star-shaped slot 11, star slot 12, clamping part 13, sealing ring 14 and the like are frequently used in this article, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional limitation is contrary to the spirit of the utility model.

Claims

1. A flow regulating valve core, characterized in that: It comprises a valve body (1) and a valve bonnet (2) threadedly connected to the valve body (1), wherein the valve body (1) is provided with a valve stem (3) whose top end protrudes from the outside of the valve bonnet (2) and can be adjusted up and down, the bottom end of the valve stem (3) protrudes from the outside of the valve body (1) and is connected to a sealing gland (4) and a sealing gasket (5) in sequence, the bottom end of the valve bonnet (2) extends into the valve body (1), and the valve bonnet (2) is provided with an elastic member (6) sleeved on the valve stem (3), the valve stem (3) is provided with a support platform (7) for one end of the elastic member (6) to abut, the valve body (1) is installed with a stainless steel gasket (8) for the other end of the elastic member (6) to abut, and the bottom of the sealing gasket (5) is provided with a retaining spring structure for fixing the valve stem (3); The retaining spring structure is composed of a supporting layer (9) and a bowl-shaped chuck (10), the chuck (10) is provided with a star-shaped retaining groove (11), the middle part of the star-shaped retaining groove (11) is for the bottom end of the valve stem (3) to pass through, the star-shaped retaining groove (11) is provided with a plurality of star-shaped grooves (12) arranged in a circle, and a retaining portion (13) for retaining the valve stem (3) is formed between the plurality of star-shaped grooves (12).

2. A flow control valve core according to claim 1, characterized in that: The elastic member (6) is a variable-pitch spring.

3. A flow control valve core according to claim 1, characterized in that: The valve stem (3) is marked with flow scale values.

4. A flow control valve core according to claim 1, characterized in that: Sealing rings (14) are arranged on the valve body (1), between the valve body (1) and the valve cap (2), and between the valve cap (2) and the valve stem (3).

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