CN216200748U

CN216200748U - Low-torque vertical pipe gas valve

Info

Publication number: CN216200748U
Application number: CN202122366172.9U
Authority: CN
Inventors: 严荣杰; 柴军; 王刚
Original assignee: Ningbo Jklong Precision Work Co ltd
Current assignee: Ningbo Jklong Precision Work Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-04-05
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a low-torque vertical pipe gas valve which comprises a valve body and a valve cover which are in threaded connection with each other, wherein two valve seats and a ball body are arranged between the valve body and the valve cover, the two valve seats are positioned on two sides of the ball body, the inner periphery of each valve seat is provided with a first inclined ring surface, a second inclined ring surface and a third inclined ring surface which are sequentially connected, and the second inclined ring surface is abutted to the ball body. The utility model has high sealing performance, ensures the safety of gas consumption and improves the working efficiency.

Description

Low-torque vertical pipe gas valve

Technical Field

The utility model relates to the technical field of gas valves, in particular to a low-torque vertical pipe gas valve.

Background

The natural gas vertical pipe is a gas pipeline which is laid upwards along a wall after an inlet pipe is out of the ground, and is a main pipe before entering a house, and the problem of gas safety of the whole building is influenced. The gas valve is installed on the gas vertical pipe, and the gas ball valve is mainly used for opening and closing the pipeline and equipment media.

The sealing performance and the torque of the gas valve are two opposite indexes, and the torque is generally larger under the condition of good sealing performance. The natural gas vertical pipe ball valve is mainly a large-size ball valve, the problem that the larger torque is difficult to solve all the time is solved, the sealing performance requirement of the natural gas vertical pipe ball valve is higher for ensuring the safety of a gas pipeline, and meanwhile, the reduction of the opening and closing torque is always the development direction of ball valve products while the sealing performance requirement is ensured.

Disclosure of Invention

Aiming at the problems of poor sealing performance and low torque of the existing gas valve, the low-torque vertical pipe gas valve is provided, has high sealing performance, ensures gas safety and improves working efficiency.

The specific technical scheme is as follows:

the utility model provides a low moment of torsion riser gas valve, includes valve body and valve gap of mutual spiro union, the valve body with be equipped with two disk seats and spheroid between the valve gap, two the disk seat is located spheroidal both sides, each the inner periphery of disk seat all has the first slope anchor ring, second slope anchor ring and the third slope anchor ring that connect gradually, the second slope anchor ring with the spheroid offsets.

In the above low-torque riser gas valve, a first angle is formed between the second inclined annular surface and the central axis of the valve seat, and the first angle is 30 ° to 60 °.

The length of the second inclined ring surface on the axial section of the low-torque riser gas valve is 1-2.5 mm.

In the above low-torque riser gas valve, the second inclined annular surface is located between the first inclined annular surface and the third inclined annular surface, and the first inclined annular surface, the second inclined annular surface and the third inclined annular surface are all linear on the axial section of the valve seat.

The first inclined ring surface and the second inclined ring surface form a second angle on the axial section of the valve seat, the second inclined ring surface and the third inclined ring surface form a third angle on the axial section of the valve seat, and the second angle and the third angle are both obtuse angles.

In the low-torque riser gas valve, one side of each valve seat, which is away from the ball body, is provided with a fourth inclined ring surface, the valve body and the valve cover are respectively provided with a limiting step, the two limiting steps are respectively in limiting fit with the two valve seats, the two limiting steps are respectively provided with a convex ring, and the two convex rings are respectively abutted against the two fourth inclined ring surfaces.

The low-torque vertical pipe gas valve is characterized in that the valve body is provided with a convex neck, a valve rod is arranged in the convex neck, and one end of the valve rod is embedded with the ball body.

The low-torque riser gas valve described above, wherein, still include: the key, be equipped with spacing arch on the key, be equipped with spacing recess and spacing fender platform on the gib neck, spacing arch respectively with spacing recess spacing keep off the platform and cooperate.

In the low-torque vertical pipe gas valve, the key is provided with the positioning block, the positioning block is provided with the groove, and the groove is matched with the other end of the valve rod.

The low-torque riser gas valve described above, wherein, still include: the dustproof cover is fixedly connected with the convex neck through a screw.

Compared with the prior art, the technical scheme has the positive effects that:

the second inclined ring surface on the valve seat is in contact sealing with the ball body, an angle formed between the second inclined ring surface and the central axis of the valve seat is 30-60 degrees, the length of the second inclined ring surface on the axial section is 1-2.5 mm, and the torque can be reduced while the sealing performance of the valve is ensured by adopting a mode that the second inclined ring surface is directly sealed with the ball body.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a low torque riser gas valve of the present invention;

FIG. 2 is an enlarged view at A of FIG. 1 of a low torque riser gas valve of the present invention;

FIG. 3 is a schematic diagram of a ball and seat arrangement for a low torque riser gas valve according to the present invention;

FIG. 4 is an enlarged view at B of FIG. 3 of a low torque riser gas valve of the present invention;

FIG. 5 is a schematic view of the valve body of a low torque riser gas valve of the present invention;

FIG. 6 is a schematic structural view of a key for a low torque riser gas valve of the present invention;

FIG. 7 is a schematic view of a dust cap for a low torque riser gas valve in accordance with the present invention;

in the drawings: 1. a valve body; 2. a valve cover; 3. a valve seat; 4. a sphere; 5. a limiting step; 6. a convex ring; 7. a raised neck; 8. a valve stem; 9. a key; 10. a limiting bulge; 11. a first sloped annulus; 12. a second sloped annulus; 13. a third sloped annulus; 14. a fourth sloped annulus; 15. a limiting stop table; 16. positioning blocks; 17. a positioning groove; 18. a dust cover; 19. a screw; 20. a limiting groove; 21. and (5) sealing rings.

Detailed Description

The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

Fig. 1 is an overall structural schematic diagram of a low-torque riser gas valve of the present invention, fig. 2 is an enlarged view of a low-torque riser gas valve at a position a in fig. 1, fig. 3 is a structural schematic diagram of a ball body and a valve seat of the low-torque riser gas valve of the present invention, fig. 4 is an enlarged view of a low-torque riser gas valve at a position B in fig. 3, fig. 5 is a structural schematic diagram of a valve body of the low-torque riser gas valve of the present invention, fig. 6 is a structural schematic diagram of a key of the low-torque riser gas valve of the present invention, fig. 7 is a structural schematic diagram of a dust cap of the low-torque riser gas valve of the present invention, as shown in fig. 1 to 7, showing a low-torque riser gas valve of a preferred embodiment, the valve body 1 and the valve cover 2 being screwed to each other, two valve seats 3 and balls 4 being provided between the valve body 1 and the valve cover 2, the two valve seats 3 being located at both sides of the balls 4, the inner periphery of each valve seat 3 is provided with a first inclined ring surface 11, a second inclined ring surface 12 and a third inclined ring surface 13 which are connected in sequence, and the second inclined ring surface 12 is abutted against the ball 4.

Further, as a preferred embodiment, the second inclined annular surface 12 forms a first angle with the central axis of the valve seat 3, the first angle being 30 ° to 60 °.

Further, as a preferred embodiment, the length of the second inclined ring surface 12 in the axial section thereof is 1 to 2.5 mm.

Further, as a preferred embodiment, the second inclined ring surface 12 is located between the first inclined ring surface 11 and the third inclined ring surface 13, and the first inclined ring surface 11, the second inclined ring surface 12 and the third inclined ring surface 13 are all in a straight line on the axial section of the valve seat 3.

Further, as a preferred embodiment, the first inclined ring surface 11 and the second inclined ring surface 12 form a second angle on the axial section of the valve seat 3, and the second inclined ring surface 12 and the third inclined ring surface 13 form a third angle on the axial section of the valve seat 3, wherein the second angle and the third angle are both obtuse angles.

The above are merely preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.

The present invention also has the following embodiments in addition to the above:

in a further embodiment of the present invention, please refer to fig. 1 to 7, wherein a fourth inclined ring surface 14 is disposed on a side of each valve seat 3 away from the ball 4, a limiting step 5 is disposed in each of the valve body 1 and the valve cover 2, the two limiting steps 5 are respectively in limiting engagement with the two valve seats 3, a protruding ring 6 is disposed on each of the two limiting steps 5, and the two protruding rings 6 are respectively abutted against the four inclined ring surfaces 14.

Preferably, the section of the convex ring 6 is triangular.

In a further embodiment of the utility model, a convex neck 7 is arranged on the valve body 1, a valve rod 8 is arranged in the convex neck 7, and one end of the valve rod 8 is embedded with the ball 4.

In a further embodiment of the present invention, the low torque riser gas valve further comprises: the key 9 is provided with a limiting bulge 10 on the key 9, a limiting groove 20 and a limiting stop 15 are arranged on the convex neck, and the limiting bulge 10 is respectively matched with the limiting groove 20 and the limiting stop 15.

Preferably, the limiting protrusion 10 is movably arranged between the limiting groove 20 and the limiting baffle 15 to realize the opening or closing of the gas valve.

In a further embodiment of the present invention, the key 9 is provided with a positioning block 16, the positioning block 16 is provided with a positioning groove 17, and the positioning groove 17 is matched with the other end of the valve rod 8. Preferably, the other end of the valve rod 8 is a special-shaped end surface, and the positioning groove 17 is matched with the special-shaped end surface.

In a further embodiment of the present invention, the low torque riser gas valve further comprises: and the dustproof cover 18 is fixedly connected with the convex neck 7 through a screw 19.

Preferably, at least one sealing ring 21 is arranged between the valve rod 8 and the convex neck 7 and between the valve body 1 and the valve cover 2.

The second inclined ring surface 12 on the valve seat is in contact sealing with the ball 4, the angle formed between the second inclined ring surface 12 and the central axis of the valve seat 3 is 30-60 degrees, the length of the second inclined ring surface 12 on the axial section is 1-2.5 mm, and the second inclined ring surface 12 is directly sealed with the ball 4, so that the sealing performance of the valve can be ensured, and the torque can be reduced.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a low moment of torsion riser gas valve, its characterized in that includes valve body and valve gap of mutual spiro union, the valve body with be equipped with two disk seats and spheroid between the valve gap, two the disk seat is located spheroidal both sides, each the inner periphery of disk seat all has the first slope anchor ring, second slope anchor ring and the third slope anchor ring that connect gradually, the second slope anchor ring with the spheroid offsets.

2. The low torque riser gas valve of claim 1 wherein the second inclined annulus forms a first angle with the central axis of the valve seat, the first angle being between 30 ° and 60 °.

3. The low torque riser gas valve of claim 1 wherein the second sloped annulus is 1-2.5 mm long in axial cross-section.

4. The low torque riser gas valve of claim 1, wherein the second sloped annulus is between the first sloped annulus and the third sloped annulus, the first sloped annulus, the second sloped annulus, and the third sloped annulus each being linear in axial cross-section of the valve seat.

5. The low torque riser gas valve of claim 2, wherein the first and second angled annuli form a second angle in axial cross-section of the valve seat, the second and third angled annuli form a third angle in axial cross-section of the valve seat, the second and third angles each being obtuse.

6. The low torque riser gas valve as recited in claim 1, wherein each of said valve seats has a fourth inclined annular surface on a side thereof remote from said ball, said valve body and said valve cover each having a stop step therein, said stop steps being in stop engagement with said valve seats, said stop steps each having a collar thereon, said collars abutting against said fourth inclined annular surfaces.

7. The low torque riser gas valve of claim 1, wherein the valve body has a male neck, a valve stem is disposed in the male neck, and one end of the valve stem is engaged with the ball.

8. The low torque riser gas valve of claim 7, further comprising: the key, be equipped with spacing arch on the key, be equipped with spacing recess and spacing fender platform on the gib neck, spacing arch respectively with spacing recess spacing keep off the platform and cooperate.

9. The low-torque riser gas valve as claimed in claim 8, wherein a positioning block is provided on the key, and a positioning groove is provided on the positioning block, the positioning groove matching with the other end of the valve stem.

10. The low torque riser gas valve of claim 7, further comprising: the dustproof cover is fixedly connected with the convex neck through a screw.