CN219570924U

CN219570924U - Ultra-low torque dustproof lock valve

Info

Publication number: CN219570924U
Application number: CN202320410518.7U
Authority: CN
Inventors: 忻明杰; 符雪萍
Original assignee: Ningbo Xinjie Gas Appliances Industrial Co ltd
Current assignee: Ningbo Xinjie Gas Appliances Industrial Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-08-22
Anticipated expiration: 2033-03-07

Abstract

The utility model relates to an ultralow torque dustproof lock valve which comprises a valve body, a ball body, a valve rod and an upper bearing seat, wherein an upper mounting hole is formed in the upper part of the center of the valve body, the upper bearing seat is arranged on the upper mounting hole, the valve rod is rotatably arranged on the upper bearing seat, the ball body is arranged in the valve body, a dustproof cover is arranged at the top of the upper bearing seat, a first connecting shaft which protrudes is arranged at the upper end of the ball body, an upper bearing is arranged between the first connecting shaft and the upper bearing seat, the first connecting shaft is in a step shape, the bottom surface of the upper bearing is higher than the top surface of the first stage at the bottom of the first connecting shaft, and a gap is formed between the bottom surface of the upper bearing seat and the ball body. The ultra-low torque dustproof lock valve has the following advantages: the bottom surface of the upper bearing is contacted with the first connecting shaft step, so that the contact area is reduced, the friction resistance is reduced, the rotation is more labor-saving, and the whole structure is simple.

Description

Ultra-low torque dustproof lock valve

Technical Field

The utility model relates to the technical field of ball valves, in particular to an ultralow torque dustproof lock valve.

Background

The ball valve is a product widely applied in a pipeline system, and particularly has a great deal of application in the fields of residential building water supply, air supply, heating and the like.

In the prior art, as disclosed in chinese patent No. CN202812271U, an ultra-low torque dustproof ball valve comprises a valve body, a ball body, a valve rod, a handle and a dustproof cover, wherein the valve body is vertically provided with a threaded circular hole in the upper and lower parts at the central part, the ball body is arranged in the valve body, the valve rod is arranged in the threaded circular hole on the valve body, the lower end of the valve rod is connected with the ball body, the upper end of the valve rod is connected with the handle, and the dustproof cover is arranged at the joint of the upper end part of the valve rod and the valve body. However, the upper bearing seat of the ball valve is matched with the bearing, so that the distance between the upper bearing seat and the ball body is short, the upper bearing seat and the ball body are easy to contact, and the operating torque force is increased.

Disclosure of Invention

An object of the present utility model is to provide an ultra-low torque dust lock valve that reduces the operating torque force.

The utility model further aims to provide the ultra-low torque dustproof lock valve which is simple in structure.

The utility model adopts the technical scheme that: the utility model provides an ultralow moment of torsion dustproof lock valve, including valve body, spheroid, valve rod and bolster bearing housing, valve body center upper portion is equipped with the mounting hole, bolster bearing housing sets up on the mounting hole, and the valve rod rotationally sets up on the bolster bearing housing, and the spheroid sets up in the valve body, and bolster bearing housing top is equipped with the shield, and the spheroid upper end is equipped with convex first connecting axle, is equipped with the bolster bearing housing between first connecting axle and the bolster bearing housing, and first connecting axle is the step form, and the bottom surface of bolster bearing is higher than the top surface of first connecting axle bottom first order, is equipped with the clearance between bolster bearing housing's bottom surface and the spheroid.

Compared with the prior art, the utility model has the advantages that the first connecting shaft is in a step shape, the upper bearing is higher than the first stage of the first connecting shaft, the installation position of the upper bearing is improved, the distance between the upper bearing and the upper surface of the ball body is increased, the distance between the upper bearing bottom surface and the upper bearing body is further increased, the ball body can be prevented from being rubbed with the upper bearing body when the contact area between the upper bearing seat and the upper bearing body is ensured, the pressure is larger when gas is introduced, the ball body can be impacted by the gas, the ball body is laterally moved, the ball body can be contacted with the upper bearing seat when the gap is smaller, the ball body is laborious to rotate or jammed, the distance between the bottom surface of the upper bearing seat and the upper surface of the ball body is increased, the distance between the bottom surface of the upper bearing body and the upper surface of the ball body is prevented from being contacted with the step of the first connecting shaft when the ball body is laterally moved, the contact area is reduced, the friction resistance is reduced, and the rotation is more labor-saving.

In some embodiments of the utility model, a sealing seat is arranged between two ends of the sphere and the inner wall of the valve body;

an elastic piece is arranged between the sealing seat and the inner wall of the valve body;

the sealing seat is provided with a joint surface jointed with the sphere, and one side of the joint surface close to the center of the sphere is provided with a chamfer angle.

In some embodiments of the present utility model, the upper bearing seat is provided with an upper pin hole, the valve body is provided with a lower pin hole matched with the upper pin hole, and the upper pin hole and the lower pin hole are provided with fixing pins.

In some embodiments of the utility model, the dust cover is connected with the valve body through a rotating shaft;

a torsion spring is sleeved on the rotating shaft;

the valve body is provided with a fixing hole, one end of the torsion spring is arranged in the fixing hole, and the other end of the torsion spring is in butt joint with the dust cover.

In some embodiments of the utility model, a seal is provided between the valve stem and the upper bearing seat;

the valve rod is provided with a mounting groove, and the sealing element is arranged on the mounting groove;

the sealing elements are arranged in two, and a gap is arranged between the two sealing elements.

In some embodiments of the utility model, a lower mounting hole is arranged at the lower part of the center of the valve body, a lower bearing seat is arranged on the lower mounting hole, a convex second connecting shaft is arranged at the lower end of the sphere, a lower bearing is arranged between the second connecting shaft and the lower bearing seat, the second connecting shaft is in a step shape, and the top surface of the lower bearing is lower than the top surface of the first stage at the bottom of the second connecting shaft.

In some embodiments of the present utility model, a connector body is disposed on one side of the valve body, a first interface is disposed on the connector body, and a second interface coaxially communicated with the first interface is disposed on the valve body.

In some embodiments of the utility model, the valve stem tip is provided with a removable handle.

In some embodiments of the present utility model, the ball is provided with a groove, the first connecting shaft is disposed on the groove, and the top surface of the first stage at the bottom of the first connecting shaft is level with the upper surface of the ball.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;

FIG. 2 is a cross-sectional view of embodiment 1 of the present utility model;

fig. 3 is an enlarged view of a portion a in fig. 2;

FIG. 4 is a schematic view of embodiment 1 of the present utility model with the dust cap removed;

FIG. 5 is a schematic view of embodiment 1 of the present utility model with the dust cover and the upper housing removed;

fig. 6 is an exploded perspective view of embodiment 1 of the present utility model.

In the figure: 1. a valve body; 2. a sphere; 3. a valve stem; 4. an upper bearing seat; 5. an upper mounting hole; 6. a dust cover; 7. a first connecting shaft; 8. an upper bearing; 9. a gap; 10. a sealing seat; 11. an elastic member; 12. a bonding surface; 13. chamfering; 14. an upper pin hole; 15. a lower pin hole; 16. a fixing pin; 17. a rotating shaft; 18. a torsion spring; 19. a fixing hole; 20. a seal; 21. a mounting groove; 22. a void; 23. a lower mounting hole; 24. a lower bearing seat; 25. a second connecting shaft; 26. a lower bearing; 27. a joint body; 28. a first interface; 29. a second interface; 30. a handle; 31. a groove.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

Example 1:

the embodiment provides an ultralow moment of torsion dustproof lock valve, as shown in fig. 1, fig. 2, fig. 6, including valve body 1, spheroid 2, valve rod 3 and bolster bearing housing 4, valve body 1 central upper portion is equipped with mounting hole 5, bolster bearing housing 4 sets up on mounting hole 5, valve rod 3 rotationally sets up on bolster bearing housing 4, spheroid 2 sets up in valve body 1, bolster bearing housing 4 top is equipped with shield 6, spheroid 2 upper end is equipped with convex first connecting axle 7, be equipped with bolster bearing 8 between first connecting axle 7 and bolster bearing housing 4, first connecting axle 7 is the step form, bolster bearing 8's bottom surface is higher than the top surface of first connecting axle 7 bottom first level, be equipped with clearance 9 between bolster bearing housing 4's bottom surface and spheroid 2 upper surface. The upper bearing seat 4 is connected with the upper mounting hole 5 through threads. The first connecting shaft 7 is in a step shape, the upper bearing 8 is higher than the first stage of the first connecting shaft 7, the installation position of the upper bearing 8 is improved, the distance between the upper bearing 8 and the upper surface of the ball 2 is increased, further, under the condition that the contact area between the upper bearing 4 and the upper bearing 8 is ensured, the distance between the gap 9 can be increased, the ball 2 can be prevented from moving up and down and rubbing with the upper bearing 4, the pressure when gas is introduced is larger, the ball 2 can be impacted by the gas, the ball 2 is laterally moved, the gap 9 is smaller, the ball 2 is contacted with the upper bearing 4, the ball 2 is hard to rotate or is clamped, the distance between the bottom surface of the upper bearing 4 and the upper surface of the ball 2 is increased, the contact between the bottom surface of the upper bearing 8 and the upper surface of the ball 2 can be avoided when the ball 2 laterally moved, compared with the contact between the bottom surface of the upper bearing 8 and the upper surface of the ball 2, the contact area between the bottom surface of the upper bearing 8 and the first connecting shaft 7 is reduced, the friction resistance is reduced, and the rotation is more labor-saving.

For sealing reliability, a sealing seat 10 is arranged between the two ends of the ball body 2 and the inner wall of the valve body 1. The design of the sealing seat 10 ensures the sealing effect between the ball 2 and the valve body 1.

For good tightness, an elastic piece 11 is arranged between the sealing seat 10 and the inner wall of the valve body 1. The elastic piece 11 can play a role in sealing and automatically pre-tightening the sealing seat 10, and the sealing reliability can be ensured under the acting force of the elastic piece 11 after the sealing seat 10 is worn.

In order to reduce friction, as shown in fig. 3, the seal seat 10 is provided with a joint surface 12 jointed with the ball 2, and one side of the joint surface 12 near the center of the ball 2 is provided with a chamfer 13. The joint face 12 is used for guaranteeing sealed effect, and the design of chamfer 13 has reduced the laminating area, and then reduces frictional force, and sealed at 10 wearing and tearing back, chamfer 13 also can reduce, and joint face 12 increases, guarantees sealed effect, and chamfer 13 handles simultaneously, also can prevent the closed angle of seal receptacle 10 and laminating with spheroid 2, and then causes the laminating area to be few, the poor result of sealed effect.

In order to ensure the reliable installation of the valve body 1 and the upper bearing seat 4, as shown in fig. 4 and 5, the upper bearing seat 4 is provided with an upper pin hole 14, the valve body 1 is provided with a lower pin hole 15 matched with the upper pin hole 14, and the upper pin hole 14 and the lower pin hole 15 are provided with fixing pins 16. The cooperation of upper pinhole 14 and lower pinhole 15 is used, can guarantee that the installation of bolster bearing housing 4 is in place, and tightening out of range or not tightening yet when preventing bolster bearing housing 4 installation, and the insertion of fixed pin 16 for valve body 1 is fixed reliably with bolster bearing housing 4, drives bolster bearing housing 4 when preventing to rotate valve rod 3 and rotates.

In order to facilitate the use of the dust cover 6, the dust cover 6 is connected with the valve body 1 through a rotating shaft 17. The dust cover 6 is rotatably connected with the valve body 1, so that the dust cover 6 is convenient to use, can be closed or opened only by rotating, and can be prevented from being accidentally lost.

In order to improve the protection, a torsion spring 18 is sleeved on the rotating shaft 17. The design of the torsion spring 18 can facilitate the reset of the dust cover 6, ensure that the dust cover 6 is in a closed state and improve the protection system.

For reliable installation of the torsion spring 18, the valve body 1 is provided with a fixing hole 19, one end of the torsion spring 18 is arranged in the fixing hole 19, and the other end of the torsion spring is abutted with the dust cover 6. The fixing hole 19 is designed to fix one end of the torsion spring 18 reliably, and prevent the torsion spring 18 from falling out.

For a reliable sealing of the valve rod 3, a sealing element 20 is arranged between the valve rod 3 and the upper bearing seat 4. The seal 20 serves to improve the tightness between the valve stem 3 and the upper bearing housing 4.

For reliable installation of the seal 20, the valve stem 3 is provided with a mounting groove 21, and the seal 20 is provided on the mounting groove 21. The design of mounting groove 21 is convenient for the installation of sealing member 20, can prevent simultaneously that sealing member 20 from reciprocate out of range, guarantees sealed effect.

In order to reduce friction while ensuring a sealing effect, two sealing members 20 are provided, and a space 22 is provided between the two sealing members 20. The sealing elements 20 are arranged in two ways, so that the sealing effect is improved, and due to the design of the gaps 22, after the two sealing elements 20 are pressed, sealing deformation is achieved, the pressure of the sealing elements 20 on two sides is not increased due to mutual extrusion, and the small friction force between the valve rod 3 and the upper bearing seat 4 is ensured.

In this embodiment, the seal 20 is a seal ring.

In order to reduce friction resistance, a lower mounting hole 23 is formed in the lower portion of the center of the valve body 1, a lower bearing seat 24 is arranged on the lower mounting hole 23, a convex second connecting shaft 25 is arranged at the lower end of the ball body 2, a lower bearing 26 is arranged between the second connecting shaft 25 and the lower bearing seat 24, the second connecting shaft 25 is in a step shape, and the top surface of the lower bearing 26 is lower than the top surface of the first stage at the bottom of the second connecting shaft 25. The lower bearing housing 24 is screwed with the lower mounting hole 23. The ball body 2 is supported by the first connecting shaft 7 and the second connecting shaft 25, friction resistance can be reduced, the second connecting shaft 25 is in a step shape, and the lower bearing 26 is lower than the second connecting shaft 25, compared with the lower surface contact of the lower bearing 26 and the ball body 2, the top surface of the lower bearing 26 is not in foundation with the top surface of the step, the contact area is reduced, friction resistance is reduced, and rotation is more labor-saving.

In order to facilitate the installation of internal components, one side of the valve body 1 is provided with a connector body 27, the connector body 27 is provided with a first interface 28, and the valve body 1 is provided with a second interface 29 coaxially communicated with the first interface 28.

In order to facilitate the rotation of the valve rod 3, the top end of the valve rod 3 is provided with a detachable handle 30. The handle 30 is a universal handle.

For the convenience of processing, be equipped with recess 31 on the spheroid 2, first connecting axle 7 sets up on recess 31, and the top surface of first connecting axle 7 bottom first order is level with spheroid 2 upper surface. The design of recess 31 can guarantee the distance on bolster bearing housing 4 and spheroid 2 surface, prevents bolster bearing housing 4 and spheroid 2 collision, and the first level step face of first connecting axle 7 flushes with spheroid 2 upper surface for after processing recess 32, the synchronous formation of first level step face does not need further processing, reduces the processing area, makes first connecting axle 7 processing more convenient. The bottom surface of the upper bearing seat 4 is flush with the bottom surface of the upper bearing 8, so that the contact area with the upper bearing 8 is ensured, and the distance between the bottom surface of the upper bearing seat 4 and the ball body 2 can be increased.

The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. The utility model provides an ultralow moment of torsion dustproof lock valve, a serial communication port includes valve body (1), spheroid (2), valve rod (3) and bolster bearing housing (4), valve body (1) central upper portion is equipped with mounting hole (5), bolster bearing housing (4) set up on mounting hole (5), valve rod (3) rotationally set up on bolster bearing housing (4), spheroid (2) set up in valve body (1), bolster bearing housing (4) top is equipped with shield (6), spheroid (2) upper end is equipped with convex first connecting axle (7), be equipped with upper bearing (8) between first connecting axle (7) and bolster bearing housing (4), first connecting axle (7) are the step form, the bottom surface of bolster bearing (8) is higher than the top surface of first connecting axle (7) bottom first level, be equipped with clearance (9) between the bottom surface of bolster bearing housing (4) and spheroid (2).

2. The ultra-low torque dust lock valve of claim 1, wherein: a sealing seat (10) is arranged between the two ends of the ball body (2) and the inner wall of the valve body (1); an elastic piece (11) is arranged between the sealing seat (10) and the inner wall of the valve body (1); the sealing seat (10) is provided with a joint surface (12) jointed with the sphere (2), and one side of the joint surface (12) close to the center of the sphere (2) is provided with a chamfer (13).

3. The ultra-low torque dust lock valve of claim 1, wherein: an upper pin hole (14) is formed in the upper bearing seat (4), a lower pin hole (15) matched with the upper pin hole (14) is formed in the valve body (1), and fixing pins (16) are arranged on the upper pin hole (14) and the lower pin hole (15).

4. The ultra-low torque dust lock valve of claim 1, wherein: the dustproof cover (6) is connected with the valve body (1) through a rotating shaft (17); a torsion spring (18) is sleeved on the rotating shaft (17); a fixing hole (19) is formed in the valve body (1), one end of the torsion spring (18) is arranged in the fixing hole (19), and the other end of the torsion spring is in butt joint with the dust cover (6).

5. The ultra-low torque dust lock valve of claim 1, wherein: a sealing element (20) is arranged between the valve rod (3) and the upper bearing seat (4); the valve rod (3) is provided with a mounting groove (21), and the sealing element (20) is arranged on the mounting groove (21); two sealing elements (20) are arranged, and a gap (22) is arranged between the two sealing elements (20).

6. An ultra low torque dust lock valve as claimed in any one of claims 1 to 5, wherein: the valve body (1) center lower part is equipped with down mounting hole (23), is equipped with bolster bearing housing (24) on the bolster bearing housing (23), and spheroid (2) lower extreme is equipped with convex second connecting axle (25), is equipped with down bearing (26) between second connecting axle (25) and bolster bearing housing (24), and second connecting axle (25) are the step form, and the top surface of lower bearing (26) is less than the top surface of second connecting axle (25) bottom first order.

7. The ultra-low torque dust lock valve of claim 1, wherein: one side of the valve body (1) is provided with a joint body (27), the joint body (27) is provided with a first interface (28), and the valve body (1) is provided with a second interface (29) coaxially communicated with the first interface (28).

8. The ultra-low torque dust lock valve of claim 1, wherein: the top end of the valve rod (3) is provided with a detachable handle (30).

9. The ultra-low torque dust lock valve of claim 1, wherein: the ball body (2) is provided with a groove (31), the first connecting shaft (7) is arranged on the groove (31), and the top surface of the first stage at the bottom of the first connecting shaft (7) is level with the upper surface of the ball body (2).