CN218598959U - Regulating valve stem and regulating valve with the valve stem - Google Patents

Abstract

The utility model discloses an adjusting valve rod and have governing valve of this valve rod, include the connector and insert the post, insert the inside at the connector in the bottom of post, insert the inboard of post and seted up logical groove, the inboard bottom of connector and the top fixedly connected with spring that leads to the groove, the outside of inserting the post is leaned on the position and is provided with outer ring gear, the inner wall of connector all is the hexagon structure with the outer wall of inserting the post, the spring is provided with two, and two spring concentric circles set up. An adjusting valve rod and have governing valve of this valve rod, can effectually avoid the valve ball to lead to the phenomenon of rotation because of medium pressure, improve the stability of governing valve work, avoid valve closing state down the governing valve to appear leaking the phenomenon on the one hand, on the other hand also avoids valve ball rotation to lead to the problem that medium flow control precision descends under the open valve state, improves governing valve result of use.

Description

Regulating valve stem and regulating valve with the valve stem

technical field

The utility model relates to the field of regulating valves, in particular to a regulating valve stem and a regulating valve with the valve stem.

Background technique

Regulating valve is a device to control the flow of medium. It is installed between two pipelines and can be used to control the flow of liquid and gas media. Ball valves, butterfly valves, and globe valves are collectively referred to as regulating valves, which belong to various industries and common valves in life. , wherein the ball valve is mainly composed of a valve body, a valve stem and a valve ball, and the valve stem rotates the valve ball to control the flow of the medium;

However, when the existing regulating valve is in use, the valve stem and the regulating valve body cannot be used together, and the valve body and the valve stem can only play the role of support and sealing, resulting in the rotation of the valve stem when it is under pressure for a long time On the one hand, there are phenomena such as liquid leakage and air leakage, on the other hand, it is not conducive to people's precise control of the flow rate of the regulating valve, and the practicability is poor.

Utility model content

The main purpose of the utility model is to provide a regulating valve stem and a regulating valve with the valve stem, which can effectively solve the problem in the background technology: when the existing regulating valve is in use, the valve stem and the regulating valve body cannot be used together. The valve body and the valve stem can only play a supporting and sealing role, causing the valve stem to rotate when it is under pressure for a long time. On the one hand, there are phenomena such as liquid leakage and air leakage, and on the other hand, it is not conducive to people Precisely control the flow rate of the regulating valve, the technical problem of poor practicability.

In order to achieve the above object, the technical scheme that the utility model takes is:

A regulating valve stem, comprising a connector and a plug, the bottom of the plug is inserted into the connector, a through groove is opened inside the plug, and the inner bottom of the connector is connected to the top of the through groove. A spring is fixedly connected, and an external toothed ring is arranged at the upper position of the outside of the post.

As a further solution of the present utility model, the inner wall of the connector and the outer wall of the post both have a hexagonal structure, and there are two springs, and the two springs are arranged in concentric circles.

A regulating valve with a regulating valve stem, comprising a valve body, flanges are installed at both ends of the valve body, a boss is installed at the center of the outside of the valve body, and a boss is fixed inside the valve body A sealing seat, and the inner side of the sealing seat is rotatably connected with a valve ball, and the inner center of the valve ball is penetrated with a channel.

As a further solution of the present invention, the bottom end of the connecting head is fixedly connected with the valve ball, and a sealing gasket is provided on the contact surface between the connecting head and the convex post.

As a further solution of the present utility model, a turning handle is installed on the top of the post, and the turning handle is arranged in a diamond shape.

As a further solution of the present invention, the inner surface of the protruding column is provided with an inner tooth groove near the top, and the inner tooth groove is meshed and matched with the outer gear ring.

The beneficial effects of the utility model are as follows:

By setting the connecting head and the inserting post to cooperate with the inner tooth groove and the outer gear ring, the fixed valve stem of the traditional regulating valve is set as the connecting head and the inserting post. The inserting post can move in the vertical direction inside the connecting head, and at the same time The outer gear ring is set on the outside, and the outer gear ring can engage with the inner tooth groove on the inner wall of the convex column. When in use, when the outer gear ring meshes with the inner tooth groove, the post cannot be rotated, which can effectively prevent the valve ball from being damaged by the medium. The phenomenon of self-rotation caused by pressure can improve the stability of the regulating valve. On the one hand, it can avoid the leakage phenomenon of the regulating valve in the closed state, and on the other hand, it can also avoid the problem of the decrease of the medium flow control accuracy caused by the self-rotation of the valve ball in the open state, and improve the stability of the regulating valve. The effect of regulating valve;

By setting the spring, the spring is set between the connector and the post. When the post is lifted vertically, the spring will be expanded under force. When no force is applied, the spring will contract and the post can be reset. , so that the inner tooth groove can stably mesh with the outer gear ring.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of a regulating valve stem and a regulating valve having the valve stem of the present invention;

Fig. 2 is a sectional view of a regulating valve stem of the present invention and a regulating valve having the valve stem;

Fig. 3 is a split diagram of a regulating valve stem and a regulating valve with the valve stem and a connecting head of the utility model;

Fig. 4 is a front view of Fig. 2 of a regulating valve stem of the present invention and a regulating valve having the same.

In the figure: 1. valve body; 2. flange; 3. boss; 4. handle; 5. sealing seat; 6. valve ball; 7. channel; 8. connector; 9. spring; 10. Column; 11, through groove; 12, inner alveolar; 13, outer gear ring.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments.

As shown in Figures 1-4, an adjustable valve stem includes a connector 8 and a post 10. The bottom end of the post 10 is inserted into the interior of the connector 8, and the inner side of the post 10 is provided with a through groove 11. The connector The inner bottom of 8 is fixedly connected with the top end of through groove 11 with spring 9 , and the outer upper position of post 10 is provided with external gear ring 13 .

In this embodiment, both the inner wall of the connector 8 and the outer wall of the post 10 are in a hexagonal structure, two springs 9 are provided, and the two springs 9 are arranged in concentric circles.

The connecting head 8 and the post 10 which are butted in a hexagonal structure, when the post 10 is rotated, the connecting head 8 can be rotated under force, so that there is a limiting effect between the two.

A regulating valve with a regulating valve stem, comprising a valve body 1, flanges 2 are mounted on both ends of the valve body 1, a boss 3 is mounted on the outer center of the valve body 1, and a valve body 1 is fixedly installed inside the valve body 1 Sealing seat 5, and the inner side of sealing seat 5 is rotatably connected with valve ball 6, and the inner center of valve ball 6 is penetrated with channel 7.

In this embodiment, the bottom end of the connecting head 8 is fixedly connected with the valve ball 6 , and the contact surface between the connecting head 8 and the boss 3 is provided with a gasket.

When the post 10 is rotated, the post 10 drives the connector 8 to rotate, and the connector 8 drives the valve ball 6 to rotate, so as to achieve the purpose of adjusting the opening and closing degree of the valve. The gasket can increase the gap between the connector 8 and the boss 3. of tightness.

In this embodiment, a turning handle 4 is installed on the top of the stake 10, and the turning handle 4 is arranged in a diamond shape.

The stake 10 is operated by the rotating handle 4, so that the stake 10 can perform work in a vertical direction or a circumferential direction.

In this embodiment, an inner tooth groove 12 is formed on the inner surface of the boss 3 near the top, and the inner tooth groove 12 meshes with the outer gear ring 13 .

Since the protruding post 3 is fixed to the valve body 1, when the outer gear ring 13 engages with the inner tooth groove 12, the inserting post 10 cannot be rotated, which can ensure that the connecting head 8 is always kept in a fixed position, thereby ensuring that the valve Ball 6 can not appear the phenomenon of self-rotation because of being pressed.

It should be noted that the utility model is a regulating valve stem and a regulating valve with the valve stem. When in use, the valve body 1 is connected to the external pipeline through the flanges 2 at both ends, and the medium in the pipeline enters the valve. After the body 1 is inside, it is blocked by the valve ball 6 and the sealing seat 5, causing the medium to be unable to circulate, and the handle 4 is moved vertically upwards, so that the inner tooth groove 12 is separated from the outer gear ring 13, and can be rotated by the turning handle 4 after the separation Inserting post 10, inserting post 10 drives connecting head 8 to rotate, connecting head 8 drives valve ball 6 to rotate, when channel 7 of valve ball 6 leaks out of sealing seat 5, the medium can flow through channel 7, after the operation is completed, loosen When the handle 4 is turned on, the elastic force of the spring 9 shrinks, which drives the post 10 to move downward, so that the inner tooth groove 12 meshes with the outer gear ring 13. At this time, when the post 10 is lifted up by non-manual operation, the post 10 cannot be lifted. Rotate, cause valve ball 6 to keep stable all the time.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A regulating valve stem, characterized in that: it comprises a connector (8) and a plug (10), the bottom end of the plug (10) is inserted into the connector (8), and the plug ( The inner side of 10) is provided with a through groove (11), and the inner bottom of the connector (8) is fixedly connected with the top end of the through groove (11) with a spring (9), and the outer part of the post (10) is at the upper position. An external gear ring (13) is provided. 2. A regulating valve stem according to claim 1, characterized in that: the inner wall of the connector (8) and the outer wall of the post (10) are in a hexagonal structure, and the spring (9) is set There are two, two concentric circles of springs (9) are set. 3. A regulating valve, characterized in that: comprising the regulating valve stem according to claim 2, and also comprising a valve body (1), flanges (2) are installed at both ends of the valve body (1), A boss (3) is installed at the center of the outside of the valve body (1), and a sealing seat (5) is fixedly installed inside the valve body (1), and the inside of the sealing seat (5) is rotatably connected to a valve ball (6), a channel (7) runs through the inner center of the valve ball (6). 4. A regulating valve according to claim 3, characterized in that: the bottom end of the connecting head (8) is fixedly connected to the valve ball (6), and the connecting head (8) is connected to the boss (3) The contact surface is provided with a gasket. 5. A regulating valve according to claim 4, characterized in that: a turning handle (4) is installed on the top end of the post (10), and the turning handle (4) is arranged in a rhombus shape. 6. A regulating valve according to claim 5, characterized in that: the inner surface of the boss (3) is provided with an inner tooth groove (12) near the top position, and the inner tooth groove (12) is connected with the outer tooth groove (12). The ring gear (13) meshes and matches.

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