CN210950166U

CN210950166U - Electric valve rod nut

Info

Publication number: CN210950166U
Application number: CN201921368715.7U
Authority: CN
Inventors: 吴剑斌
Original assignee: Qingtian Precision Casting Valve Co ltd
Current assignee: Qingtian Precision Casting Valve Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-07-07
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses an electric valve rod nut, which comprises a circular tube sealing plate, wherein an electro-galvanized plate is fixedly arranged on the inner wall of the circular tube, a hexagonal column is fixedly arranged at the top end of the circular tube, a screwed pipe is fixedly arranged at the top part of the hexagonal column, an external thread is fixedly arranged on the outer wall of the screwed pipe, the external thread is connected with a first internal thread fixedly arranged on the inner wall of the sealing plate, a sealing ring is fixedly arranged on the outer wall of the sealing plate, and the inner wall of the screwed pipe and the inner wall of the hexagonal column are respectively and fixedly connected with the top part and the bottom part of a hot-galvanized lining, facilitating the rotation of the valve rod.

Description

Electric valve rod nut

Technical Field

The utility model relates to a nut, in particular to electric valve rod nut belongs to electric valve rod technical field.

Background

The motorised valve is the high-end product in the automatic control valve, and it not only can realize the switch action, and the valve position regulatory function can also be realized to regulation type motorised valve, and the stroke of electric actuator can divide into: the valve has two types of 90-degree angle travel and straight travel, the special requirements can also meet the full travel of 180 degrees, 270 degrees and 360 degrees, and the valve can realize the on-off of the fluid of the pipeline within 90 degrees by matching the electric actuator of the angle travel with the valve of the angle travel; the valve of the electronic executor cooperation straight stroke of straight stroke, realize the valve plate upper and lower motion control pipeline fluid break-make, the valve rod is as the important part of valve, be used for the transmission, connect actuating mechanism on, following direct drive case removes or rotates, with realization valve switch or regulatory action, common valve-stem nut's lubricating capacity and corrosion protection ability are poor, lead to the valve-stem nut corrosion easily, influence the rotation of valve rod, and common valve-stem nut's sealed effect is relatively poor, valve-stem nut's sealing washer is yielding under hydraulic effect and drops, water in the pipeline easily flows through the gap between valve-stem nut and the valve gap.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic valve-stem nut to solve the common valve-stem nut's that provides among the above-mentioned background art lubricating capability and the poor problem of corrosion protection ability.

In order to achieve the above object, the utility model provides a following technical scheme: electric valve rod nut closing plate, including the pipe, the inner wall fixation of pipe is equipped with electro-galvanized sheet, the fixed hexagonal column that is equipped with in top of pipe, the fixed screwed pipe that is equipped with in top of hexagonal column, the outer wall fixation of screwed pipe is equipped with the external screw thread, the first internal thread threaded connection that external screw thread and closing plate inner wall fixation were equipped with, the outer wall fixation of closing plate is equipped with the sealing washer, the outer wall fixation of sealing washer is equipped with the sand grip, the inner wall of screwed pipe and hexagonal column respectively with hot-galvanize bush's top and bottom fixed connection, hot-galvanize bush's inner wall fixation is equipped with the second internal thread.

As a preferred technical scheme of the utility model, the bottom mounting of pipe is equipped with the sealing rubber piece, the bottom set screw hole of sealing rubber piece.

As a preferred technical solution of the present invention, the surface of the second internal thread is coated with a lubricating coating.

As an optimized technical scheme of the utility model, the pipe is coaxial with hexagonal column and screwed pipe respectively.

As an optimal technical scheme of the utility model, the fixed first spacing ring that is equipped with in bottom of pipe, the fixed second spacing ring that is equipped with in top of pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses electronic valve-stem nut, inner wall through at the pipe sets up electro-galvanized sheet, the anticorrosive ability of pipe inner wall has been improved, inner wall through at the hexagonal column and the inner wall of screwed pipe set up the hot-galvanize bush, the thickness of cladding material has been increased, the internal screw thread corrosion resistance of second has been improved, the internal screw thread lubricity of second has been guaranteed, the difficult corrosion of hot-galvanize bush, be favorable to the rotation of valve rod, outer wall through at the screwed pipe sets up the external screw thread, make the first internal thread threaded connection of external screw thread and closing plate, the closing plate is difficult for droing under hydraulic effect, water pressure resistance can the reinforce, the fastness of closing plate has been guaranteed, set up the sand grip through the outer wall at the sealing washer, the anti deformability of sealing washer has been improved, the sealing washer is difficult for droing under the condition of atress, water in.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is a schematic structural diagram of the sealing plate of the present invention.

In the figure: 1. a circular tube; 2. a first limit ring; 3. a second stop collar; 4. electroplating a zinc plate; 5. a hexagonal column; 6. a threaded pipe; 7. an external thread; 8. a first internal thread; 9. a sealing plate; 10. a seal ring; 11. a convex strip; 12. hot dip galvanizing liners; 13. a second internal thread; 14. sealing the rubber sheet; 15. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides an electric valve rod nut, including a sealing plate 9 of a circular tube 1, an electrogalvanizing plate 4 is fixed on the inner wall of the circular tube 1, which improves the corrosion resistance of the inner wall of the circular tube 1, a hexagonal column 5 is fixed on the top end of the circular tube 1, a screwed tube 6 is fixed on the top of the hexagonal column 5, an external thread 7 is fixed on the outer wall of the screwed tube 6, the external thread 7 is in threaded connection with a first internal thread 8 fixed on the inner wall of the sealing plate 9, the sealing plate 9 is not easy to fall off under the action of water pressure, the water pressure resistance is strong, the firmness of the sealing plate 9 is ensured, a sealing ring 10 is fixed on the outer wall of the sealing plate 9, a raised line 11 is fixed on the outer wall of the sealing ring 10, the deformation resistance of the sealing ring 10 is improved, the inner wall of the screwed tube 6 and the inner wall of the, the inner wall of the hot galvanizing bush 12 is fixedly provided with the second internal thread 13, so that the corrosion resistance of the second internal thread 13 is improved, the lubricity of the second internal thread 13 is ensured, and the hot galvanizing bush 12 is not easy to rust.

Preferably, the bottom mounting of pipe 1 is equipped with sealing rubber piece 14, sealing rubber piece 14's bottom set up threaded hole 15, the valve rod is when screw hole 15 through sealing rubber piece 14 rotates, the difficult gap that produces, the surface coating of second internal thread 13 has the lubricant coating, it is lubricated effectual, pipe 1 is coaxial with hexagonal column 5 and screwed pipe 6 respectively, the precision of pipe 1 has been ensured, the fixed first spacing ring 2 that is equipped with in bottom of pipe 1, the fixed second spacing ring 3 that is equipped with in top of pipe 1, can be spacing to pipe 1.

When in use, the electric valve rod nut of the utility model arranges the first spacing ring 2 and the second spacing ring 3 of the round pipe 1 inside the valve cover respectively, the round tube 1 is limited, the valve rod is in threaded connection with the second internal thread 13, the inner wall of the round tube 1 is provided with the electro-galvanized plate 4, the anti-corrosion capability of the inner wall of the round tube 1 is improved, the corrosion resistance of the second internal thread 13 is improved by arranging the hot galvanizing bush 12 on the inner wall of the hexagonal column 5 and the inner wall of the threaded pipe 6, the hot galvanizing bush 12 is not easy to rust, the valve rod is in good contact with the second internal thread 13 of the hot galvanizing bush 12 in the moving process, can normally rotate, the external thread 7 of the threaded pipe 6 is in threaded connection with the first internal thread 8 of the sealing plate 9, the sealing plate 9 is not easy to fall off under the action of water pressure, and is firm and reliable, because the outer wall of the sealing ring 10 is provided with the convex strip 11, the sealing ring 10 is not easy to deform under the stress condition.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The electric valve rod nut comprises a circular tube (1) and a sealing plate (9) and is characterized in that, an electro-galvanized plate (4) is fixedly arranged on the inner wall of the circular tube (1), a hexagonal column (5) is fixedly arranged at the top end of the circular tube (1), a threaded pipe (6) is fixedly arranged at the top of the hexagonal column (5), external threads (7) are fixedly arranged on the outer wall of the threaded pipe (6), the external thread (7) is in threaded connection with a first internal thread (8) fixedly arranged on the inner wall of the sealing plate (9), a sealing ring (10) is fixedly arranged on the outer wall of the sealing plate (9), a convex strip (11) is fixedly arranged on the outer wall of the sealing ring (10), the inner wall of the threaded pipe (6) and the inner wall of the hexagonal column (5) are respectively fixedly connected with the top and the bottom of the hot galvanizing bush (12), and a second internal thread (13) is fixedly arranged on the inner wall of the hot galvanizing bush (12).

2. The electric stem nut of claim 1 wherein: the bottom end of the round pipe (1) is fixedly provided with a sealing rubber sheet (14), and the bottom end of the sealing rubber sheet (14) is provided with a threaded hole (15).

3. The electric stem nut of claim 1 wherein: the surface of the second internal thread (13) is coated with a lubricating coating.

4. The electric stem nut of claim 1 wherein: the round pipe (1) is coaxial with the hexagonal column (5) and the threaded pipe (6) respectively.

5. The electric stem nut of claim 1 wherein: the fixed first spacing ring (2) that is equipped with in bottom of pipe (1), the fixed second spacing ring (3) that is equipped with in top of pipe (1).