CN219221435U

CN219221435U - Novel balanced valve gap and valve rod nut mounting structure

Info

Publication number: CN219221435U
Application number: CN202320569207.5U
Authority: CN
Inventors: 程川; 闫耀辉; 董惠康; 杨金龙
Original assignee: TIANJIN GALAXY VALVE CO Ltd
Current assignee: TIANJIN GALAXY VALVE CO Ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-06-20
Anticipated expiration: 2033-03-21

Abstract

The utility model discloses a novel balanced valve cover and valve rod nut mounting structure, which belongs to the technical field of valves, and comprises a valve cover and a valve rod nut assembled on the valve cover, wherein the valve cover is provided with a sleeve hole, the valve rod nut is assembled in the sleeve hole, and the valve rod nut form an axial moving pair, and the balanced valve cover and the valve rod nut mounting structure are characterized by comprising radial clamping teeth and axial sliding grooves; the radial latch is arranged on the inner wall of the trepanning, and forms a convex structure towards the inner side of the trepanning; the axial chute is formed on the outer wall of the valve rod nut, and the axial chute extends along the axial direction of the valve rod nut. This novel well valve rod nut mounting structure design has higher part machining efficiency, and lower part is made and is equipped the precision requirement to and less part quality has effectively solved the problem that traditional structural design exists.

Description

Novel balanced valve gap and valve rod nut mounting structure

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to a novel mounting structure of a valve cover and a valve rod nut of a balance valve.

Background

A static balance valve is a valve for regulating the distribution of water flow to a plumbing system. The hand wheel is rotated to drive the rotating pair, and the opening between the valve core and the sealing surface of the valve body is adjusted to change the flow resistance of the flowing valve, so that the purpose of adjusting the flow is achieved. The static balance valve is widely applied to the fields of building, heating ventilation and air conditioning systems, water supply systems, drainage systems and the like. The water flow distribution efficiency of the pipeline system can be effectively improved, the waste of water resources is reduced, and meanwhile, the running stability and the safety of the pipeline system can be ensured.

The structure of the static balance valve mainly comprises a valve body, a valve cover, an adjusting component and a sealing piece, wherein the valve cover is a main component part of the static balance valve and is used for installing the adjusting component. The adjusting component is a component which comprises a handle, a valve rod and a valve rod nut and is used for controlling the opening degree of the valve, so that the control of the water flow in the pipeline is realized. The seal is a critical component for ensuring the sealing performance of the valve and is usually made of rubber material, and is connected with the valve rod nut and driven and controlled by the adjusting assembly.

Chinese patent (patent number: 201410552807.6) discloses a self-balancing static balance valve, which enables a valve cover and a valve rod nut to form an axial linear moving pair through the axial combination effect between a limiting rod and a valve clack sleeve. The traditional structural design has relatively more parts, needs to assemble between the limiting rod and the valve clack sleeve, has complex assembly procedures, and has the problems of low product manufacturing efficiency and high assembly precision requirement. The problems of the traditional structural design lead to high production cost, low production efficiency, difficult guarantee of product precision and quality, and serious restriction of production and marketing of products.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides a valve rod nut mounting structure of a balance valve cover and a valve rod nut, which solves the problems of low assembly efficiency, high cost and the like of the existing balance valve.

The utility model is realized in this way, a novel balanced valve cover and valve rod nut mounting structure, including valve cover and valve rod nut fitted to said valve cover, the said valve cover has trepanning, the said valve rod nut fits in the said trepanning, the said valve rod and said valve rod nut form the axis and move the pair, characterized by that, including radial latch, axial chute; the radial latch is arranged on the inner wall of the trepanning, and forms a convex structure towards the inner side of the trepanning; the axial chute is formed on the outer wall of the valve rod nut, and the axial chute extends along the axial direction of the valve rod nut.

In the above technical solution, preferably, an inward annular portion is provided at a lower portion of the valve cover, the sleeve hole is formed in an inner hole of the annular portion, and the radial latch is formed in an inner side of the annular portion and is integral with the annular portion.

In the above technical solution, preferably, two radial latches are symmetrically disposed at the inner side of the sleeve hole, and the outer wall of the valve rod nut is symmetrically provided with axial sliding grooves combined with the radial latches one by one.

In the above technical solution, preferably, a notch structure is provided on the ring portion and located on two sides of the radial latch.

The utility model has the advantages and effects that:

the valve rod nut mounting structure design of novel static balance valve adaptation that this patent provided through improving traditional valve rod nut design among the prior art, has realized constituting the target of axial rectilinear motion pair between valve gap and the valve rod nut through radial latch and the axial spout that combine together. Compared with the combined structure of the traditional limiting rod and the valve clack sleeve, the novel structural design has higher component machining efficiency, lower component manufacturing and equipment precision requirements and lower component quality, and effectively solves the problems existing in the traditional structural design.

The novel structural design can also improve the production efficiency and reduce the production cost, and effectively improve the precision and quality of the product, thereby enhancing the competitiveness of the product. Therefore, the technical effect of the present patent is of great technical and economic significance in improving the problems and disadvantages existing in the prior art.

Another object of the present utility model is to provide a balance valve, wherein the balance valve is provided with the nut mounting structure.

Drawings

FIG. 1 is a schematic view of a valve cover according to the present utility model;

FIG. 2 is a schematic illustration of the structure of a valve stem nut of the present utility model;

fig. 3 is a schematic view of the valve stem nut mounting structure of the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

For the valve rod nut processing of present balanced valve, assembly efficiency low, problem such as with high costs, the utility model specially provides a novel balanced valve gap and valve rod nut mounting structure, and this novel well valve rod nut mounting structure design has higher part machining efficiency, lower part manufacturing and equips the precision requirement to and less part quality. For further explanation of the structure of the present utility model, the detailed description is as follows in connection with the accompanying drawings:

embodiment one:

referring to fig. 1-3, a novel balanced valve cover and stem nut mounting structure includes a cover 1 and a stem nut 2 fitted to the cover. The valve cover is a member constituting the valve body, and is mounted to the valve body by bolts. The valve stem nut is an axial sliding member having a threaded hole, which is fitted to the valve cover by an axial linear motion pair, which is driven to move axially by a valve stem screw-coupled thereto. The specific way of forming the axial linear moving pair between the valve rod nut and the valve cover is as follows.

The valve cover is provided with a sleeve hole 3, the valve rod nut is assembled in the sleeve hole, the valve rod nut can axially slide under the action of the sleeve hole, and the valve cover and the valve rod nut form an axial line moving pair.

Also comprises a radial latch 4 and an axial chute 5. The design of the radial latch and the axial chute is a circumferential limit structure of the valve rod nut, and replaces the combined structure of the limit rod and the valve clack sleeve in the prior art.

Specifically, the radial latch is disposed on the inner wall of the trepanning, and the radial latch forms a convex structure toward the inner side of the trepanning. In this embodiment, the lower part of the valve cover is provided with an inward annular part, the inner side hole of the annular part forms a trepanning, and the inner side of the annular part 6 forms radial latches integral with the annular part. Further, a notch structure 7 is arranged on the annular part and positioned on two sides of the radial latch, and the notch structure is used for feeding the radial latch on the annular part of the valve cover so as to facilitate the processing and manufacturing of the parts.

The axial chute is formed on the outer wall of the valve rod nut, and extends along the axial direction of the valve rod nut. Specifically, a circumferential groove which is convenient for cutter processing is arranged at the tail end of the axial chute at the lower end part of the valve rod nut. In this embodiment, two radial latches are symmetrically arranged on the inner side of the sleeve hole, and axial sliding grooves combined with the radial latches one by one are symmetrically arranged on the outer wall of the valve rod nut.

The valve rod nut mounting structure in the embodiment adopts the design of the radial latch and the axial chute, so that the error of the valve rod nut in the axial direction and the radial direction can be reduced, the processing efficiency and the equipment precision of the component are improved, the manufacturing cost of the component is reduced, and the reliability of the valve is improved.

Example two

A valve body upper portion of the balance valve is provided with a valve cover through a bolt, and the valve cover is provided with a valve rod nut through the valve rod nut mounting structure in the first embodiment.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a novel balanced valve gap and valve rod nut mounting structure, include the valve gap with join in marriage in the valve rod nut of valve gap, the valve gap is equipped with the trepanning, the valve rod nut join in marriage in the trepanning, the valve rod with the valve rod nut constitutes axis shifting pair, its characterized in that includes:

the radial clamping teeth are arranged on the inner wall of the sleeve hole, and form a convex structure towards the inner side of the sleeve hole;

the axial sliding groove is formed in the outer wall of the valve rod nut, and extends along the axial direction of the valve rod nut.

2. The novel balanced valve bonnet and stem nut mounting structure of claim 1, wherein a lower portion of the bonnet is provided with an inward annular portion, an inner side hole of the annular portion forms the socket hole, and an inner side of the annular portion forms the radial latch integrally with the annular portion.

3. The novel balanced valve cover and valve stem nut mounting structure according to claim 2, wherein two radial latches are symmetrically arranged on the inner side of the sleeve hole, and the axial sliding grooves combined with the radial latches one by one are symmetrically arranged on the outer wall of the valve stem nut.

4. The novel balanced valve cap and stem nut mounting structure of claim 3, wherein the annular portion is provided with a notch configuration on each side of the radial latch.