CN212804349U

CN212804349U - Prevent natural gas valve of leakage

Info

Publication number: CN212804349U
Application number: CN202021537755.2U
Authority: CN
Inventors: 毛伟
Original assignee: Suzhou Quanzhongquan Energy Technology Co ltd
Current assignee: Suzhou Quanzhongquan Energy Technology Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-03-26
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a natural gas valve preventing leakage, which comprises a valve body, wherein a ball valve is arranged inside the valve body, the upper end of the ball valve is connected with a valve rod, and the upper end of the valve rod is provided with a handle component; the utility model discloses a cup joint the rubber sleeve pipe that the top is connected with the hand wheel in the upper end of valve rod to the top of valve body has cup jointed the annular rubber sleeve that the upper end is connected with the closing plate, and the inside of annular rubber sleeve is provided with the through-hole that is run through by rubber sleeve pipe, and this kind of structure of convenient dismantlement can be fine protects valve rod and valve body open end and avoids appearing the rusty condition.

Description

Prevent natural gas valve of leakage

Technical Field

The utility model belongs to the technical field of the valve, concretely relates to prevent natural gas valve of leakage.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valves are classified into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard valves, and the like according to the material.

The natural gas valve of prior art is exactly one of valve, and the relevant leakage alarm device all can be installed to conventional natural gas valve, realizes closing the pipeline through rotating the hand wheel when appearing reporting an emergency and asking for help or increased vigilance, but just can't close the pipeline when the ball valve that leaks the trouble because with hand wheel connection goes wrong, generally is direct connection between hand wheel and the valve rod in addition, and this kind of structure leads to the rusty condition to appear in the position department of valve body and valve rod tie point easily on the surface of valve rod.

SUMMERY OF THE UTILITY MODEL

For solving the problem that provides among the above-mentioned background art, the utility model provides a convenient natural gas valve who prevents leaking of dismantling.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent natural gas valve of leakage, includes the valve body, the inside of valve body is provided with the ball valve, the upper end of ball valve is connected with the valve rod, the upper end of valve rod is provided with the handle subassembly, the handle subassembly includes rubber sleeve, spacing hole, locating hole, stop screw and hand wheel, wherein, rubber sleeve has been cup jointed to the upper end of valve rod, and the inside of valve rod is provided with spacing hole, rubber sleeve's top is connected with the hand wheel, and the inside locating hole that is provided with of rubber sleeve's lateral wall, the inside of locating hole is run through there is stop screw.

Preferably, the handle assembly further comprises a sliding strip and a sliding groove, wherein the sliding strip is arranged on the inner side of the rubber sleeve, the sliding groove with the size matched with that of the sliding strip is arranged on the outer side of the valve rod, and one end of the limiting screw penetrating through the positioning hole also penetrates through the inside of the limiting hole.

Preferably, the handle assembly further comprises a sealing plate, an annular rubber sleeve and a through hole, wherein the annular rubber sleeve is sleeved at the opening end of the valve body, the sealing plate is installed at the top end of the annular rubber sleeve, and the through hole penetrated by the rubber sleeve is formed in the sealing plate.

Preferably, one end of the valve body is connected with a second pipeline, and an alarm device is installed on the periphery of the second pipeline.

Preferably, the one end of valve body is connected with first pipeline, the inside of first pipeline is provided with supplementary closing assembly, supplementary closing assembly includes dwang, seal cover, disc and butterfly lamella, wherein, the inside seal cover that is provided with in top of first pipeline, the inside of seal cover runs through there is the dwang, the dwang extends to the inside one end outside of first pipeline and installs the butterfly lamella, and the disc is installed to the bottom of dwang, the disc passes through rolling bearing and is connected with the interior bottom end of first pipeline.

Preferably, the auxiliary closing assembly further comprises a rotating handle and a fastening screw, wherein the rotating handle is connected to one end of the rotating rod extending to the outer top end of the first pipeline, and the rotating handle is fixedly connected with the outer top end of the first pipeline through the fastening screw.

Compared with the prior art, the beneficial effects of the utility model are that: the sealing sleeve penetrated by the rotating rod is arranged in the top end of the first pipeline, the butterfly valve is arranged on the outer side of the rotating rod positioned in the first pipeline, the outer end of the rotating rod is connected with a rotating handle fixedly connected with the outer top end of the first pipeline through a fastening screw, and the structure drives the butterfly valve to rotate through unscrewing the fastening screw and then rotating the rotating handle by ninety degrees so as to realize the blockage and closing of the butterfly valve on the first pipeline; the rubber sleeve with the top connected with the hand wheel is sleeved at the upper end of the valve rod, the annular rubber sleeve with the upper end connected with the sealing plate is sleeved at the top end of the valve body, a through hole which is penetrated through by the rubber sleeve is formed in the annular rubber sleeve, and the structure which is convenient to disassemble can be used for protecting the valve rod and the open end of the valve body and avoiding the rusting condition.

Drawings

Fig. 1 is a schematic structural view of a leakage-proof natural gas valve of the present invention;

fig. 2 is a schematic structural view of an auxiliary closing assembly of the leak-proof natural gas valve of the present invention;

fig. 3 is a schematic structural view of a handle assembly of the leak-proof natural gas valve of the present invention;

fig. 4 is a schematic structural view of the sealing plate and the annular rubber sleeve in fig. 3 according to the present invention;

in the figure: 1. a first conduit; 2. a secondary closure assembly; 21. rotating the rod; 22. sealing sleeves; 23. a disc; 24. a butterfly flap; 25. fastening screws; 26. turning a handle; 3. a ball valve; 4. a second conduit; 5. an alarm device; 6. a valve stem; 7. a handle assembly; 701. a slide bar; 702. a rubber sleeve; 703. a sealing plate; 704. a chute; 705. a limiting hole; 706. an annular rubber sleeve; 707. a through hole; 708. positioning holes; 709. a limit screw; 710. a hand wheel; 8. a valve body.

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 to 4, the utility model provides a prevent natural gas valve of leakage, including valve body 8, the inside of valve body 8 is provided with ball valve 3, and the upper end of ball valve 3 is connected with valve rod 6, and the upper end of valve rod 6 is provided with handle assembly 7.

The handle assembly 7 comprises a rubber sleeve 702, a limiting hole 705, a positioning hole 708, a limiting screw 709 and a hand wheel 710, wherein the rubber sleeve 702 is sleeved at the upper end of the valve rod 6, the limiting hole 705 is arranged in the valve rod 6, the hand wheel 710 is connected to the top end of the rubber sleeve 702, the positioning hole 708 is arranged in the side wall of the rubber sleeve 702, and the limiting screw 709 penetrates through the positioning hole 708.

The handle assembly 7 further comprises a slide strip 701 and a slide groove 704, wherein the slide strip 701 is arranged on the inner side of the rubber sleeve 702, the slide groove 704 with the size matched with that of the slide strip 701 is arranged on the outer side of the valve rod 6, and one end of the limiting screw 709 penetrating through the positioning hole 708 also penetrates through the inside of the limiting hole 705.

The arrangement of the rubber sleeve 702 can avoid the valve rod 6 from rusting, and when the exposed hand wheel 710 rusts, the limit screw 709 is unscrewed to separate the limit screw 709 from the positioning hole 708, then the rubber sleeve 702 is moved, the separation process of the rubber sleeve 702 and the valve rod 6 can be easily realized along the sliding groove 704 by the sliding of the sliding strip 701, and the hand wheel 710 can be further easily disassembled.

The handle assembly 7 further comprises a sealing plate 703, an annular rubber sleeve 706 and a through hole 707, wherein the annular rubber sleeve 706 is sleeved at the opening end of the valve body 8, the sealing plate 703 is installed at the top end of the annular rubber sleeve 706, and the through hole 707 penetrated by the rubber sleeve 702 is arranged in the sealing plate 703. The arrangement of the annular rubber sleeve 706 and the sealing plate 703 can protect the connecting part of the valve rod 6 and the valve body 8 and the exposed surface of the valve body 8, and the rusting condition is avoided.

One end of the valve body 8 is connected with a second pipeline 4, and an alarm device 5 is installed on the periphery of the second pipeline 4. The alarm device 5 can give an alarm when a natural gas leak occurs in the valve body 8.

One end of valve body 8 is connected with first pipeline 1, the inside of first pipeline 1 is provided with supplementary close subassembly 2, supplementary close subassembly 2 includes dwang 21, seal cover 22, disc 23 and butterfly lamella 24, wherein, the inside seal cover 22 that is provided with in top of first pipeline 1, the inside of seal cover 22 runs through has dwang 21, dwang 21 extends to the inside one end outside of first pipeline 1 and installs butterfly lamella 24, disc 23 is installed to the bottom of dwang 21, disc 23 passes through rolling bearing and is connected with the interior bottom of first pipeline 1. The rotation of dwang 21 can drive butterfly lamella 24 and rotate, so when dwang 21 rotates ninety degrees owing to butterfly lamella 24 cross-section and first pipeline 1's cross-section is vertical structure during initial position, butterfly lamella 24 cross-section and first pipeline 1's cross-section coincide mutually to the jam of realization to first pipeline 1 is closed.

The auxiliary closing assembly 2 further comprises a rotating handle 26 and a fastening screw 25, wherein the rotating handle 26 is connected to one end of the rotating rod 21 extending to the outer top end of the first pipeline 1, and the rotating handle 26 is fixedly connected with the outer top end of the first pipeline 1 through the fastening screw 25. The rotating handle 26 can drive the rotating rod 21 to rotate, and the tightening of the fastening screw 25 can limit the rotation of the rotating handle 26.

The working principle of the middle alarm device 5 of the utility model is a common prior art product, which is not described herein too much.

When natural gas leakage occurs due to the failure of the valve body 8, the alarm device 5 works to give an alarm, at the moment, an operator unscrews the fastening screw 25, rotates the rotating handle 26 by ninety degrees to drive the butterfly valve 24 to rotate by ninety degrees, and further realizes the superposition of the section of the butterfly valve 24 and the section of the first pipeline 1, so that the blockage and the closing of the first pipeline 1 can be realized, and the leakage condition is prevented from continuing;

the utility model discloses a thereby cup joint rubber sleeve 702 in the upper end of valve rod 6 and realize the protection to valve rod 6, avoid appearing the rusty condition of valve rod 6, the setting of annular rubber sleeve 706 and closing plate 703 can be protected valve rod 6 and valve body 8's the position of being connected and valve body 8's the surface that exposes simultaneously, avoid appearing the rusty condition, and when the rusty condition appears in hand wheel 710, unscrew stop screw 709, then remove rubber sleeve 702, thereby realize rubber sleeve 702 and valve rod 6's disengaging process, further just can easily realize the dismantlement to hand wheel 710.

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. A natural gas valve against leakage, characterized in that: including valve body (8), the inside of valve body (8) is provided with ball valve (3), the upper end of ball valve (3) is connected with valve rod (6), the upper end of valve rod (6) is provided with handle subassembly (7), handle subassembly (7) are including rubber sleeve pipe (702), spacing hole (705), locating hole (708), stop screw (709) and hand wheel (710), wherein, rubber sleeve pipe (702) have been cup jointed to the upper end of valve rod (6), and the inside of valve rod (6) is provided with spacing hole (705), the top of rubber sleeve pipe (702) is connected with hand wheel (710), and the inside locating hole (708) that is provided with of the lateral wall of rubber sleeve pipe (702), stop screw (709) has been run through to the inside of locating hole (708).

2. A leak resistant natural gas valve as defined in claim 1, wherein: the handle assembly (7) further comprises a sliding strip (701) and a sliding groove (704), wherein the sliding strip (701) is arranged on the inner side of the rubber sleeve (702), the sliding groove (704) with the size matched with that of the sliding strip (701) is arranged on the outer side of the valve rod (6), and one end of the limiting screw (709) penetrates through the positioning hole (708) and also penetrates through the limiting hole (705).

3. A leak resistant natural gas valve as defined in claim 1, wherein: the handle assembly (7) further comprises a sealing plate (703), an annular rubber sleeve (706) and a through hole (707), wherein the annular rubber sleeve (706) is sleeved at the opening end of the valve body (8), the sealing plate (703) is installed at the top end of the annular rubber sleeve (706), and the through hole (707) which is penetrated through by the rubber sleeve (702) is formed in the sealing plate (703).

4. A leak resistant natural gas valve as defined in claim 1, wherein: one end of the valve body (8) is connected with a second pipeline (4), and an alarm device (5) is installed on the periphery of the second pipeline (4).

5. A leak resistant natural gas valve as defined in claim 1, wherein: the one end of valve body (8) is connected with first pipeline (1), the inside of first pipeline (1) is provided with supplementary closing assembly (2), supplementary closing assembly (2) are including dwang (21), seal cover (22), disc (23) and butterfly lamella (24), wherein, the inside seal cover (22) that is provided with in top of first pipeline (1), the inside of seal cover (22) is run through dwang (21), dwang (21) are installed to the inside one end outside that extends to first pipeline (1), and disc (23) are installed to the bottom of dwang (21), disc (23) are connected with the inner bottom of first pipeline (1) through rolling bearing.

6. A leak resistant natural gas valve as defined in claim 5, wherein: the auxiliary closing assembly (2) further comprises a rotating handle (26) and a fastening screw (25), wherein one end, extending to the outer top end of the first pipeline (1), of the rotating rod (21) is connected with the rotating handle (26), and the rotating handle (26) is fixedly connected with the outer top end of the first pipeline (1) through the fastening screw (25).