Domestic gas safety valve

Abstract

The utility model discloses a kind of domestic gas safety valves, it is related to gas equipment technical field. Including: valve pipe vertical setting, the top of valve pipe is provided with upper cover, the bottom of valve pipe is provided with lower cover;Sealing ring is arranged on the inner wall of valve pipe;Vertical sliding rod vertically slides in valve pipe, the bottom of valve pipe is provided with vertical sliding pipe, vertical sliding rod vertically slides in vertical sliding pipe;Sealing plug is arranged on vertical sliding rod;The edge of rubber cover is sealingly connected with the inner wall of valve pipe, the top of vertical sliding rod is connected with the bottom of rubber cover;The middle part of upper cover is vertically provided with threaded hole, the bottom of threaded rod is connected with the top of rubber cover, the top of threaded rod is provided with rotating cover;Valve pipe outer wall below sealing ring is provided with air inlet pipe and gas outlet pipe.The utility model drives rubber cover by setting rubber cover and by driving threaded rod, and then can completely isolate the inside and outside of valve pipe, by setting sealing plug and sealing ring, the absolute blockage to gas can be realized.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment technology, and more specifically to a household gas safety valve. Background Technology

[0002] For gas, the valve is crucial, controlling not only the opening and closing of the tank but also preventing gas leaks. Household gas poisoning primarily refers to carbon monoxide poisoning, liquefied petroleum gas (LPG), piped gas, and natural gas poisoning. Carbon monoxide poisoning is more common in winter when coal stoves are used for heating, doors and windows are tightly closed, and ventilation is poor. Natural gas poisoning is often caused by leaks in LPG stoves or gas pipelines. Gas readily binds to hemoglobin in the blood. Initial symptoms of gas poisoning include headache, dizziness, nausea, vomiting, and weakness. When realizing they are poisoned, they often struggle to get out of bed to open doors and windows, but usually only a few can do so. Most patients quickly experience convulsions and coma, with their cheeks, chest, and lips turning cherry red. Without timely treatment, respiratory depression and death can occur rapidly.

[0003] Most existing gas valves are manual, which can easily lead to dangerous situations such as valves not closing tightly and water being used to extinguish flames. In existing technologies, the valve stem in the valve core extends from the valve core to the outside of the valve body, and leakage often occurs radially at the valve stem.

[0004] Therefore, how to provide a household gas safety valve that can isolate the inside and outside of the valve body and effectively block the flow of gas is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a household gas safety valve, which aims to solve the problems in the background art mentioned above, to isolate the inside and outside of the valve body, and to effectively block the flow of gas.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A household gas safety valve, comprising:

[0008] A valve tube, which is arranged vertically, has an upper cover at the top and a lower cover at the bottom;

[0009] A sealing ring is disposed on the inner wall of the valve pipe;

[0010] A vertical slide bar slides vertically in the valve tube, and a vertical slide tube is provided at the bottom of the valve tube, in which the vertical slide bar slides vertically.

[0011] A sealing plug is disposed on the vertical slide rod, and the sealing plug slides synchronously with the vertical slide rod. The bottom surface of the sealing plug mates with the top surface of the sealing ring.

[0012] A rubber cap, the edge of which is sealed to the inner wall of the valve tube, and the top of the vertical slide rod is connected to the bottom of the rubber cap;

[0013] A threaded rod is provided in the middle of the upper cover with a threaded hole, the threaded rod is vertically disposed in the threaded hole, the bottom of the threaded rod is connected to the top of the rubber cover, and a rotating cover is provided at the top of the threaded rod.

[0014] An air inlet pipe is provided on the outer wall of the valve tube below the sealing ring, and an air outlet pipe is provided on the outer wall of the valve tube between the sealing ring and the rubber cover.

[0015] Furthermore, the sealing plug includes a support plate and a rubber sleeve, the support plate being sleeved on the vertical slide rod, and the rubber sleeve being sleeved on the support plate.

[0016] Furthermore, the top of the sealing ring is provided with a concave spherical structure, and the bottom outer wall of the sealing plug has the same shape as the top of the sealing ring.

[0017] Furthermore, the bottom surface of the sealing plug is provided with a mating gasket, the edge of the mating gasket is provided with a mating groove, and the inner wall of the sealing ring is provided with an annular protrusion, which mates with the mating groove.

[0018] Furthermore, a lower spring is fitted on the vertical slide rod below the sealing plug, one end of the lower spring is connected to the vertical slide rod, and the other end of the lower spring abuts against the top of the vertical slide tube.

[0019] Furthermore, a retainer is provided on the vertical slide rod above the sealing plug, the outer wall of the retainer is fixedly connected to the inner wall of the valve tube, and the vertical slide rod slides vertically in the middle of the retainer.

[0020] Furthermore, an upper spring is fitted on the vertical slide rod above the sealing plug, with one end of the upper spring abutting against the sealing plug and the other end of the upper spring abutting against the bottom of the retainer.

[0021] Furthermore, a vertical sliding sleeve is provided on the outer wall of the rotating cover, the vertical sliding sleeve slides on the outer wall of the valve tube, and a scale is provided on the outer wall of the valve tube along the stroke of the vertical sliding sleeve.

[0022] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a household gas safety valve. By setting a rubber cover and driving the rubber cover with a drive threaded rod, the rubber cover can be driven downward to drive the vertical slide rod and the sealing plug during use. The rubber cover is sealed to the valve pipe, thereby completely isolating the inside and outside of the valve pipe. By setting a sealing plug and a sealing ring, absolute blockage of gas can be achieved. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 An overall structural diagram of a household gas safety valve provided by this utility model;

[0025] Figure 2 Provided by this utility model Figure 1 Enlarged view of point A;

[0026] Figure 3 Provided by this utility model Figure 1 Enlarged view of point B.

[0027] Wherein: 1 is valve pipe; 2 is upper cover; 3 is lower cover; 4 is sealing ring; 5 is vertical slide rod; 6 is vertical slide tube; 7 is sealing plug; 701 is support plate; 702 is rubber sleeve; 8 is rubber cover; 9 is threaded rod; 10 is rotating cover; 11 is air inlet pipe; 12 is air outlet pipe; 13 is mating gasket; 14 is mating groove; 15 is annular protrusion; 16 is lower spring; 17 is retainer; 18 is upper spring; 19 is vertical slide sleeve; 20 is scale. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] See Figure 1-3 This utility model discloses a household gas safety valve, comprising:

[0030] Valve pipe 1 is arranged vertically, with an upper cover 2 at the top and a lower cover 3 at the bottom. In this embodiment, valve pipe 1 is a vertical pipe and a seamless pipe. The upper cover 2 and the lower cover 3 of valve pipe 1 are respectively sealed to the top and bottom of valve pipe 1.

[0031] A sealing ring 4 is disposed on the inner wall of the valve tube 1. In this embodiment, the outer wall of the sealing ring 4 is fixedly connected to the inner wall of the valve tube 1, the sealing ring 4 and the valve tube 1 are integrally formed, and the sealing ring 4 and the valve tube 1 are sealed together.

[0032] A vertical slide rod 5 slides vertically in the valve tube 1. A vertical slide tube 6 is provided at the bottom of the valve tube 1, and the vertical slide rod 5 slides vertically in the vertical slide tube 6. In this embodiment, the vertical slide rod 5 includes an upper rod and a lower rod, which are respectively provided at the upper and lower ends of the sealing plug 7. The upper rod can abut against the rubber cover 8, and the lower part of the lower rod slides vertically in the vertical slide tube 6.

[0033] The sealing plug 7 is mounted on the vertical slide rod 5 and slides synchronously with the vertical slide rod 5. The bottom surface of the sealing plug 7 engages with the top surface of the sealing ring 4. In this embodiment, the circumferential outer wall of the sealing plug 7 has a reduced diameter structure. In use, by setting the sealing plug 7 at the edge of the reduced diameter structure, natural gas can pass through easily, thereby improving the efficiency of natural gas passage when the valve body is opened.

[0034] The rubber cover 8 has its edge sealed to the inner wall of the valve tube 1, and the top of the vertical slide rod 5 is connected to the bottom of the rubber cover 8. In this embodiment, the rubber cover 8 is made of rubber and is spherical in use. When the valve body is closed, the rubber cover 8 is recessed downward under the action of the vertical slide rod 5 and the threaded rod 9. When the valve body is open, the rubber cover 8 is recessed upward under the action of the vertical slide rod 5 and the threaded rod 9. The rubber cover 8 can be sealed to the valve tube 1 and can effectively isolate the inside and outside of the valve body.

[0035] The threaded rod 9 has a threaded hole vertically arranged in the middle of the upper cover 2. The bottom of the threaded rod 9 is connected to the top of the rubber cover 8, and the top of the threaded rod 9 is provided with a rotating cover 10. In this embodiment, the threaded rod 9 cooperates with the threaded hole, and the screw can be driven to move upward and downward by driving the rotating cover 10. In this way, the threaded rod 9 can drive the rubber cover 8 and the vertical slide bar 5 to move upward or downward, thereby controlling the gas supply and demand when the sealing plug 7 moves up and down.

[0036] An air inlet pipe 11 is provided on the outer wall of the valve pipe 1 below the sealing ring 4, and an air outlet pipe 12 is provided on the outer wall of the valve pipe 1 between the sealing ring 4 and the rubber cover 8. In this embodiment, the air inlet pipe 11 is used to connect the valve body and the gas pipeline, and the air outlet pipe 12 is used to connect the valve body and the gas pipeline. In use, the structure of the air inlet pipe 11 and the air outlet pipe 12 can be determined according to the structure of the gas pipeline.

[0037] The sealing plug 7 includes a support plate 701 and a rubber sleeve 702. The support plate 701 is fitted onto the vertical slide rod 5, and the rubber sleeve 702 is fitted onto the support plate 701. The top of the sealing ring 4 is provided with a concave spherical structure, and the bottom outer wall of the sealing plug 7 has the same shape as the top of the sealing ring 4. The bottom surface of the sealing plug 7 is provided with a mating pad 13, and the edge of the mating pad 13 is provided with a mating groove 14. The inner wall of the sealing ring 4 is provided with an annular protrusion 15, which mates with the mating groove 14. In this embodiment, by providing the support plate 701, the rubber sleeve 702 can be made rigid, ensuring that the rubber sleeve 702 and the sealing ring 4 fit together, which can ensure the effectiveness of the valve body in blocking natural gas. By providing the rubber sleeve 702, the blocking effect on natural gas when the valve body is closed can be maximized. By providing the mating groove 14 and the protrusion, the sealing ring 4 and the sealing plug 7 can be further sealed.

[0038] A lower spring 16 is fitted onto the vertical slide rod 5 below the sealing plug 7. One end of the lower spring 16 is connected to the vertical slide rod 5, and the other end of the lower spring 16 abuts against the top of the vertical slide tube 6. In this embodiment, a support ring is provided on the vertical slide rod 5. The support ring is set on the vertical slide rod 5 and fixedly connected to the vertical slide rod 5. The support ring abuts against the lower spring 16. By setting the lower spring 16, assistance can be provided when moving the sealing plug 7 and the vertical slide rod 5. The vertical slide rod 5 can be pulled down or pushed up, which can effectively facilitate the use of the user.

[0039] A retainer 17 is provided on the vertical slide rod 5 above the sealing plug 7. The outer wall of the retainer 17 is fixedly connected to the inner wall of the valve pipe 1. The vertical slide rod 5 slides vertically in the middle of the retainer 17. In this embodiment, by providing the retainer 17, the vertical slide rod 5 can be effectively prevented from shifting, and the vertical slide rod 5 can be guaranteed to always slide vertically.

[0040] An upper spring 18 is fitted on the vertical slide bar 5 above the sealing plug 7. One end of the upper spring 18 abuts against the sealing plug 7, and the other end of the upper spring 18 abuts against the bottom of the retainer 17. In this embodiment, the upper spring 18 can prevent the sealing plug 7 from hitting the retainer 17 and can produce the same effect as the lower spring 16, making it convenient for the user to use.

[0041] A vertical sliding sleeve 19 is provided on the outer wall of the rotating cover 10. The vertical sliding sleeve 19 slides on the outer wall of the valve tube 1. A scale 20 is provided on the stroke of the vertical sliding sleeve 19 on the outer wall of the valve tube 1. In this embodiment, by providing the vertical sliding sleeve 19, the concentricity of the rotating cover 10 and the valve body can be effectively guaranteed. By providing the scale 20, the movement distance of the rotating cover 10 can be recorded, and the movement distance of the vertical sliding rod 5, the sealing plug 7 and the rubber cover 8 can be determined.

[0042] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A household gas safety valve, characterized in that, include: A valve tube, which is arranged vertically, has an upper cover at the top and a lower cover at the bottom; A sealing ring is disposed on the inner wall of the valve pipe; A vertical slide bar slides vertically in the valve tube, and a vertical slide tube is provided at the bottom of the valve tube, in which the vertical slide bar slides vertically. A sealing plug is disposed on the vertical slide rod, and the sealing plug slides synchronously with the vertical slide rod. The bottom surface of the sealing plug mates with the top surface of the sealing ring. A rubber cap, the edge of which is sealed to the inner wall of the valve tube, and the top of the vertical slide rod is connected to the bottom of the rubber cap; A threaded rod is provided in the middle of the upper cover with a threaded hole, the threaded rod is vertically disposed in the threaded hole, the bottom of the threaded rod is connected to the top of the rubber cover, and a rotating cover is provided at the top of the threaded rod. An air inlet pipe is provided on the outer wall of the valve tube below the sealing ring, and an air outlet pipe is provided on the outer wall of the valve tube between the sealing ring and the rubber cover.

2. A household gas safety valve according to claim 1, characterized in that, The sealing plug includes a support plate and a rubber sleeve. The support plate is sleeved on the vertical slide rod, and the rubber sleeve is sleeved on the support plate.

3. A household gas safety valve according to claim 1, characterized in that, The top of the sealing ring is provided with a concave spherical structure, and the bottom outer wall of the sealing plug has the same shape as the top of the sealing ring.

4. A household gas safety valve according to claim 3, characterized in that, The bottom surface of the sealing plug is provided with a mating gasket, the edge of the mating gasket is provided with a mating groove, and the inner wall of the sealing ring is provided with an annular protrusion, which mates with the mating groove.

5. A household gas safety valve according to claim 1, characterized in that, A lower spring is fitted on the vertical slide rod below the sealing plug. One end of the lower spring is connected to the vertical slide rod, and the other end of the lower spring abuts against the top of the vertical slide tube.

6. A household gas safety valve according to claim 1, characterized in that, A retainer is provided on the vertical slide rod above the sealing plug. The outer wall of the retainer is fixedly connected to the inner wall of the valve tube, and the vertical slide rod slides vertically in the middle of the retainer.

7. A household gas safety valve according to claim 6, characterized in that, An upper spring is fitted onto the vertical slide rod above the sealing plug. One end of the upper spring abuts against the sealing plug, and the other end of the upper spring abuts against the bottom of the retainer.

8. A household gas safety valve according to claim 1, characterized in that, A vertical sliding sleeve is provided on the outer wall of the rotating cover. The vertical sliding sleeve slides on the outer wall of the valve tube. A scale is provided on the outer wall of the valve tube along the stroke of the vertical sliding sleeve.

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