CN209856452U - Automatic block formula gas valve - Google Patents

Abstract

The utility model discloses an automatic block formula gas valve belongs to valve technical field, including valve body, connecting pipe, connecting cover, set up locking bolt, lock dead hole in the valve body, separation blade in the connecting pipe, block ball. The utility model discloses can prevent that the gas from leaking by the dead valve body of manual lock under emergency, the separation blade can effectively prevent the mistake and insert water and flow backward, and the protection is stopped up the ball and can be plugged up the import of connecting the lid under the condition of external high temperature to it continues to pass through to block the gas. The safety of the whole gas system is greatly improved.

Description

Automatic block formula gas valve

Technical Field

The utility model relates to the technical field of valves, in particular to block formula gas valve.

Background

On the gas pipeline, each gas pipe is connected with a gas meter when being connected to a user, and a meter front valve is connected before being connected with the gas meter to control the opening and closing of the gas. The irregular operation of the user can cause damage to the valve, such as untimely handling, and most likely damage to the entire gas system. Such as: the indoor temperature is too high due to improper use of users, and sudden fire occurs; a user mistakenly connects a water discharge pipe of the water heater as a gas pipe to a gas meter, once a water supply valve of the water heater is opened, water enters the gas meter from a water discharge port of the water heater and then enters the whole gas supply pipeline through the gas meter, and therefore the whole gas supply system is damaged; therefore, it is necessary to develop a valve capable of timely disconnecting the gas in the gas system from the outside in case of danger of misoperation or high temperature of the outside. The existing gas valve only has the manual opening and closing function, the safety performance is poor, and the safety of a user cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, those skilled in the art have endeavored to develop an automatic shutoff gas valve.

In order to achieve the above object, the utility model provides an automatic block formula gas valve, including valve body, connecting pipe, connecting cover, characterized by: the valve body is characterized in that a locking hole is formed in the pipe wall of the valve body, the locking hole is a stepped hole with a small outer part and a large inner part, a locking bolt is arranged on the locking hole, a rotating handle is arranged at the top of the locking bolt, an annular clamping ring is arranged at the bottom of the locking bolt and clamped in the large-diameter end of the locking hole, a blocking hole is formed in the bottom of the locking hole and communicated with the valve body, a locking column is concentrically and threadedly connected in an inner cavity of the locking bolt, the lower end of the locking column extends into the valve body, the outer wall of the locking column is attached to the inner wall of the valve body, a blocking wall is arranged in the connecting pipe and perpendicular to the connecting pipe, the connecting pipe and the blocking wall are integrally formed, a through hole is formed in the blocking wall, the blocking wall surface close to the valve body is a first blocking wall surface, the second blocking wall blocking surface far away from the valve body is a second blocking wall blocking surface, and, the wall surface of the second stop of the stop piece is provided with a support, a top post is vertically arranged on the wall surface of the second stop, the top post is sleeved in a spring part, the other end of the spring part is abutted to a blocking ball, at least two blocking strips are arranged between the blocking ball and the connecting cover, the blocking strips are symmetrically inserted into the inner wall of the connecting pipe, and the blocking ball is abutted to the blocking strips.

In the structure, the baffle plate can rotate around the shaft, the baffle plate is erected on the bracket and is far away from the second wall surface in a normal state, gas can flow through the through hole, when water of a wrong water receiving pipe is poured into the connecting cylinder, the water poured backwards presses the baffle plate onto the second wall surface, the through hole is sealed by the baffle plate, the gas in the gas valve body is separated from the water flowing backwards, and meanwhile, the water can be blocked from flowing into the valve body and the gas system; the gas burner adopts a spring component, a blocking ball and a blocking strip structure, under a normal state, the ejection column and the blocking strip clamp the blocking ball, the spring component is in a compression state, gas flows through an inlet of the connecting cover, under the condition of external fire and high temperature, the blocking strip is broken and loosens the blocking ball, the spring component is loosened and pushes the blocking ball to the inlet of the connecting cover, and gas is blocked.

Preferably, the inner wall of the locking hole is provided with a first rubber sleeve.

Preferably, a second rubber sleeve is arranged on the inner wall, attached to the locking column, of the square pipe section.

Preferably, when the dead locking column extends to the lowest end, the bottom of the dead locking column extends into a corresponding concave hole formed in the inner wall of the square pipe section.

Preferably, the inlet section of the valve body 1 is provided with an external thread. Can be directly connected by a stainless steel corrugated pipe to prevent the plastic pipe from aging and leaking air and being bitten by a mouse to damage and leak air.

Preferably, the inner diameter of the through hole is smaller than that of the connecting pipe.

Preferably, the shape and size of the stop piece are larger than those of the through hole.

Preferably, the blocking ball has a diameter greater than an inner diameter of the inlet of the connection cap.

Preferably, the bracket makes an included angle between the baffle and the second baffle wall surface larger than 90 degrees. The angle is used, and the backward flowing water flow is more favorable for stamping the baffle plate onto the second baffle wall surface.

The utility model has the advantages that: the valve body can be locked manually in an emergency by adopting a locking bolt and a locking piece structure, so that gas leakage is prevented; the separation blade can effectively prevent mistake and insert water and flow backward, and the protection is stopped up the ball and is plugged up the connection lid import under the condition of external high temperature to block that the gas continues to pass through. The safety of the whole gas system is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the baffle plate being pressed to the second baffle wall surface by the water flowing backward in the present invention.

Fig. 3 is a schematic view showing that the blocking strip is broken and the blocking ball is pushed to the inlet of the connection cover.

Fig. 4 is a left side view of the structure of fig. 1.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1 to 4, the present embodiment includes: the gas meter valve comprises a valve body 1, a connecting pipe 2 and a connecting cover 3, wherein the valve body 1 is fixedly sleeved with the connecting pipe 2, the outlet end of the connecting pipe 2 is in threaded connection with the inlet end of the connecting cover 3, the outlet end of the connecting cover 3 is used for connecting a gas meter end, a locking hole 8 is formed in the pipe wall of the valve body 1, the locking hole 8 is a stepped hole with a small outer part and a large inner part, a locking bolt 9 is arranged on the locking hole 8, a rotating handle 14 is arranged at the top of the locking bolt 9, an annular clamping ring 9a is arranged at the bottom of the locking bolt 9, the annular clamping ring 9a is clamped in the large-diameter end of the locking hole 8, a blocking hole 10 is formed at the bottom of the locking hole 8 and communicated with the valve body 1, a locking column 11 is concentrically and threadedly connected with the inner cavity of the locking bolt 9 in a threaded manner, the lower end of the locking column 11 extends into the valve body 1, the outer wall of the locking column 11 is attached to the inner wall of the valve body 1, a first rubber sleeve 12 is arranged, when the dead lock column 11 extends to the lowest end, the bottom of the dead lock column 11 extends into the corresponding concave hole 15 formed in the inner wall of the square pipe section 1 b. Since the annular snap ring 9a is provided on the valve body 1, the thickness of the pipe body of the valve body 1 must be larger than that of the annular snap ring 9a, and the pipe body portion of the circular valve body 1 can be thickened (as shown in fig. 4).

A retaining wall 5 is arranged in the connecting pipe 2, the retaining wall 5 is perpendicular to the connecting pipe 2, the connecting pipe 2 and the retaining wall 5 are integrally formed, a through hole 16 is formed in the retaining wall 5, a first wall blocking surface close to the valve body 1 is 5a, a second wall blocking surface far away from the valve body 1 is 5b, a rotating blocking sheet 18 is arranged at the joint of the through hole 16 and the second wall blocking surface 5b, a support 4 is arranged on the second wall blocking surface 5b close to the blocking sheet 18, a top post 7 is vertically arranged on the second wall blocking surface 5b, the top post 7 is sleeved in the spring part 6, the other end of the spring part 6 abuts against a blocking ball 9, at least two blocking strips 17 are arranged between the blocking ball 9 and the connecting cover 3, the blocking strips 17 are symmetrically inserted into the inner wall of the connecting pipe 2; the baffle piece 18 is arranged at the intersection position of the retaining wall surface 5b and the through hole 16, the position of the ejection column 7 can be far away from the through hole 16, the baffle piece 18 and the spring component 6 are not interfered with each other when in use, and the axis of the ejection column 7, the center of the blocking ball 9 and the center of the inlet end of the connecting cover 3 are kept on the same straight line.

The structure adopts the baffle plate 18 capable of rotating around the shaft, one end of the baffle plate 18 is rotatably connected with the retaining wall surface 5b through the shaft in a normal state (as shown in figure 1), the middle end of the baffle plate 18 is lapped on the bracket 4, one end of the baffle plate 18 far away from the bracket 4 is suspended in the pipe cavity of the connecting pipe 2, gas can flow through the through hole 16, when water of a wrong water receiving pipe is poured into the connecting pipe 2, the baffle plate 18 is stamped to the second retaining wall surface 5b by the poured water, and as the shape and the size of the baffle plate 18 are larger than those of the through hole 16, the baffle plate 18 can effectively seal the through hole 16 (as shown in figure 2), so that the gas in the gas valve body is separated from the poured water, and meanwhile, the water can be blocked from flowing into the valve body and; adopt spring unit, block ball and block the strip structure, under normal condition (as shown in fig. 1), the fore-set blocks with blocking the strip card and blocks the ball and block, spring unit is in the pressure state, coal gas flows through from the connecting cover import, under the high temperature condition that fires in the outside, block the strip fracture and loosen and block the ball, spring unit loosens and pushes away to connecting cover import department with blocking the ball (as shown in fig. 3), because the diameter that blocks ball 9 is greater than the internal diameter that connects the 3 imports of cover, block ball 9 can be more effectual block the gas, block strip 20 and can be formed by wax or other materials that easily high temperature melts, belong to prior art and no longer describe herein.

The inlet section of the valve body 1 is provided with external threads 1a which can be directly connected by a stainless steel corrugated pipe, so that the plastic pipe is prevented from ageing and leaking air and is prevented from being bitten by a mouse and damaged.

The inner diameter of the through hole 16 is smaller than the inner diameter of the connection pipe 2.

The bracket 4 makes the included angle between the baffle 18 and the second wall blocking surface 5b larger than 90 degrees. With the angle, the backward flowing water flow is more beneficial to stamping the baffle plate 18 onto the second baffle wall surface.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (9)

1. The utility model provides an automatic block formula gas valve, includes valve body (1), connecting pipe (2), connecting cover (3), characterized by: the valve is characterized in that a locking hole (8) is formed in the pipe wall of the valve body (1), the locking hole (8) is a stepped hole with a small outside and a large inside, a locking bolt (9) is arranged on the locking hole (8), a rotating handle (14) is arranged at the top of the locking bolt (9), an annular clamping ring (9a) is arranged at the bottom of the locking bolt (9), the annular clamping ring (9a) is clamped in the large-diameter end of the locking hole (8), a blocking hole (10) is formed in the bottom of the locking hole (8) and communicated with the valve body (1), a locking column (11) is connected with the inner cavity of the locking bolt (9) through concentric threads, the lower end of the locking column (11) extends into the valve body (1), the outer wall of the locking column (11) is attached to the inner wall of the valve body (1), a retaining wall (5) is arranged in the connecting pipe (2), and a through hole (16) is formed in the retaining wall (5), be close to the wall face that keeps off of valve body (1) is first wall face (5a), keeps away from the barricade face of valve body (1) is second wall face (5b), through-hole (16) with second wall face (5b) combination department sets up rotation washer (18), and is adjacent set up support (4) on second wall face (5b) of keeping off of washer (18), set up fore-set (7) perpendicularly on second wall face (5b) of keeping off, fore-set (7) suit is in spring part (6), the other end butt of spring part (6) hinders the ball, hinder the ball with be provided with two at least stop strip (17) between connecting cover (3), just it inserts on connecting pipe (2) inner wall to block strip (17) symmetry, it supports on stopping strip (17) to hinder the ball.

2. A self-blocking gas valve as claimed in claim 1, wherein: and a first rubber sleeve (12) is arranged on the inner wall of the locking hole (8).

3. A self-blocking gas valve as claimed in claim 1, wherein: a second rubber sleeve (13) is arranged on the inner wall of the square pipe section (1b) which is attached to the locking column (11).

4. A self-blocking gas valve as claimed in claim 1, wherein: when the locking column (11) extends to the lowest end, the bottom of the locking column (11) extends into a corresponding concave hole (15) formed in the inner wall of the square pipe section (1 b).

5. A self-blocking gas valve as claimed in claim 1, wherein: the inlet section of the valve body (1) is provided with an external thread (1 a).

6. A self-blocking gas valve as claimed in claim 1, wherein: the inner diameter of the through hole (16) is smaller than that of the connecting pipe (2).

7. A self-blocking gas valve as claimed in claim 1, wherein: the shape and size of the stop piece (18) are larger than those of the through hole (16).

8. A self-blocking gas valve as claimed in claim 1, wherein: the diameter of the blocking ball is larger than the inner diameter of the inlet of the connecting cover (3).

9. A self-blocking gas valve as claimed in claim 1, wherein: the bracket (4) enables the included angle between the baffle (18) and the second wall blocking surface (5b) to be larger than 90 degrees.