Gas overflowing vertical cut-off device

Abstract

The utility model discloses a fuel gas overflowing vertical cut-off device which comprises a hollow pipe body and a steel ball, the hollow pipe body is arranged in a fuel gas pipeline and communicated with an exhaust hole, and the inner wall face of the hollow pipe body is provided with a steel ball supporting structure which protrudes inwards. The steel ball is installed on the supporting structure and can be adsorbed to the position above the valve opening of the exhaust hole under the action of suction force of gas in the exhaust hole. According to the valve, when the flow in the gas in the hollow pipe body exceeds the standard or exceeds the set value, the steel ball perpendicular to the lower portion of the overflowing reset button automatically and rapidly moves to the position of the valve in the direction of the valve opening under the suction force of the valve opening to block the valve opening so that the valve can be closed, overflowing protection is achieved, and gas leakage is prevented.

Description

Technical Field

[0001] The utility model relates to the field of gas overflow cut-off, in particular to a gas overflow vertical cut-off device. Background Art

[0002] Gas is now a necessary equipment for almost every family, especially in high-rise buildings. However, after household gas is introduced into the house, a rubber hose or a plastic pipe is generally used to connect the gas bottle and the valve in front of the stove. With the continuous popularization of gas and the increasing number of users, it also brings certain safety hazards to people. The traditional overcurrent protection device structure is a horizontal installation structure with only a single overcurrent protection function, which cannot be used simultaneously with the cut-off valve. The structure with overcurrent protection function and cut-off function requires two independent structures to be installed. After the pressure regulating cut-off valve is closed, the user has to press the button twice, and the production of the product also requires two structures, which not only lengthens the product, but also increases the installation time and production cost. Utility Model Content

[0003] The main purpose of the utility model is to provide a gas flow vertical cut-off device, aiming to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the utility model proposes a gas flow vertical cut-off device, including a hollow tube body and a steel ball arranged on the exhaust hole and connected to the exhaust hole. A supporting structure protruding inward is provided on the inner wall surface of the hollow tube body. The hollow tube body includes an air inlet and a valve port. The steel ball is installed on the supporting structure and can be adsorbed to the valve port to seal the valve port under the action of the suction force of the pipeline gas when the gas flow exceeds the standard.

[0005] In one embodiment, the valve port is vertically arranged below the overcurrent reset button push rod, and the steel ball is located below the valve port.

[0006] In one embodiment, the cut-off valve is connected below the steel ball and the hollow tube body via a cut-off valve connecting thread.

[0007] In one embodiment, the steel ball movement and the airway cavity are arranged between the air inlet and the valve port of the hollow tube body, and the air inlet is located at the upper end of the hollow tube body.

[0008] In one embodiment, the support structure includes a plurality of support columns, and the plurality of support columns are evenly spaced and arranged on the inner wall surface of the hollow tube body to enclose a steel ball activity and airway cavity for clamping and adsorbing the steel ball.

[0009] In one embodiment, an end of the support column away from the valve opening is provided with an inclined guide groove 23.

[0010] In one embodiment, a plurality of mounting holes for mounting magnetic suction components are disposed on the outer wall of the hollow tube body, and the mounting holes are disposed opposite to the support column, and the plurality of magnetic suction components can absorb the steel balls in a magnetic manner.

[0011] In one embodiment, the air inlet is located between two adjacent support columns.

[0012] In one embodiment, a V-shaped groove for positioning is formed at one end of one of the support columns away from the guide groove.

[0013] In the technical solution of the utility model, the gas overflow vertical cut-off device includes a hollow tube body and a steel ball arranged on the exhaust hole and connected to the exhaust hole. The inner wall surface of the hollow tube body is provided with a support structure protruding toward the inside. The hollow tube body includes an air inlet and a valve port. The steel ball is installed on the support structure and can be adsorbed to the valve port under the action of the gas suction of the exhaust hole to block the valve port to close the valve. Therefore, in the technical solution, when the flow rate of the gas in the hollow tube body exceeds the standard or the flow rate exceeds the set value, the steel ball perpendicular to the bottom of the overflow reset button is automatically moved quickly to the valve port by the suction of the valve port to close the valve at the valve port to achieve overflow protection and prevent gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 This is a schematic structural diagram of a gas overflow vertical cut-off device according to an embodiment of the utility model;

[0016] Figure 2 A schematic structural diagram of the gas overflow vertical cut-off device from another perspective of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the gas overflow vertical cut-off device of the utility model embodiment used in a gas stove;

[0018] Figure 4 This is a schematic diagram of the split structure of the vertical gas flow cut-off device of the utility model embodiment used in a gas stove.

[0019] Explanation of the accompanying numbers: 10, tube body; 11, mounting hole; 12, air inlet; 13, V-shaped groove; 14, valve port; 20, supporting structure; 21, supporting column; 22, movement of steel ball and airway cavity; 23, guide groove; 30, steel ball; 40, exhaust hole; 41, cut-off valve connecting screw thread; 42, positioning male end; 50, over-current reset button push rod.

[0020] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] Furthermore, the technical solutions of the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] The utility model provides a gas over-flow vertical cutting device.

[0026] like Figure 1-4As shown, the gas flow vertical cut-off device provided by the embodiment of the utility model includes a hollow tube body 10 arranged on the exhaust hole 40 and connected to the exhaust hole 40, and a steel ball 30 made of a material that can be magnetically attracted. A support structure 20 protruding inward is provided on the inner wall surface of the hollow tube body 10. The hollow tube body 10 includes an air inlet 12 and a valve port 14. The steel ball 30 is installed on the support structure 20 and can be attracted to the valve port 14 under the action of the gas suction force of the exhaust hole 40 to seal the valve port 14.

[0027] In the present application, the over-current cut-off protection steel ball 30 is integrated with the valve closing structure of the cut-off valve, and then the steel ball 30 is kept in a suspended state, so that it is neither connected to the valve port nor to the push rod of the cut-off valve. When the gas flow in the exhaust hole 40 exceeds the standard, the steel ball 30 will be attracted to the valve port 14 by the suction force generated by the gas flow, and the steel ball 30 perpendicular to the bottom of the over-current reset button will automatically be quickly moved to the valve port 14 by the suction force of the valve port 14 to the valve of the valve port 14, realizing over-current protection to prevent gas leakage.

[0028] Please refer to Figure 3 The air inlet 12 is arranged on the outer peripheral wall of the hollow tube body 10, and the valve port 14 is located at the end of the hollow tube body 10. In normal use, the gas flows in directions abc. However, when the gas flow is large, the suction force of the gas will absorb the steel ball 30 and block the valve port 14, so that the gas cannot flow from a to b, thereby achieving over-current protection to prevent gas leakage.

[0029] Specifically, the support structure 20 includes a plurality of support columns 21, and the plurality of support columns 21 are evenly spaced on the inner wall surface of the hollow tube body 10 to enclose a steel ball activity and airway cavity 22 for clamping the steel ball 30. A plurality of mounting holes 11 recessed toward the inside are arranged on the outer wall surface of the tube body 10, and the magnetic suction member is arranged in the mounting hole 11, and the mounting hole 11 is arranged opposite to the support column 21. In an optional embodiment, the steel ball 30 is a steel ball, and the number of the support columns 21 is three, and the three support columns 21 jointly enclose the steel ball activity and airway cavity 22. At this time, the magnetic suction member arranged on the hollow tube body 10 is used to absorb the steel ball 30 through the magnetic suction member, so that the steel ball 30 is kept within the magnetic force matching range of the magnetic suction member and kept in a suspended state. When the flow exceeds the standard, the airflow increases, and the steel ball 30 is sucked to the valve port 14 to realize the over-flow valve closing protection function.

[0030] It is understandable that for the over-current cut-off device suitable for gas, the gas system should be equipped with a component that can push the steel ball 30 in a telescopic manner to actively close the valve. Therefore, when the valve is to be closed, the electromagnet can drive the push rod to push the steel ball upward to close the valve. To open the valve, just press the reset button to move the push rod downward to act on the steel ball 30. After the steel ball 30 moves down to the magnetic attraction position, it is automatically attracted by the magnetic force, maintaining an appropriate distance between the valve mouth and the steel ball to ensure that the valve is open. Please refer to Figure 4 The cut-off valve can be connected below the steel ball and the hollow tube body through the cut-off valve connecting thread.

[0031] Among them, the reset button is generally located above the steel ball 30 in the axial direction. Under normal circumstances, when the steel ball 30 is in the valve-off state, the magnetic force of the magnetic element is difficult to affect the steel ball 30, so that the steel ball 30 will not fall. Only when the reset button is pressed (at this time, the excessive gas flow has been repaired), the overcurrent reset button push rod connected to the reset button pushes the steel ball 30 downward (toward the steel ball movement and the airway cavity 22). When gradually approaching the magnetic element, the attraction of the magnetic element to the steel ball 30 gradually increases, so that under normal gas flow conditions, the magnetic element can stably absorb the steel ball 30, so that it can work normally.

[0032] For further information, please refer to Figure 3 In order to facilitate the installation of the steel ball 30, an end of the support column 21 away from the valve port 14 is provided with an inclined guide groove 23. Therefore, in this embodiment, when installing the steel ball 30, the steel ball 30 can be pushed into the steel ball activity and airway cavity 22 from the bottom of the hollow tube 10, and the installation can be completed by adsorbing the steel ball 30 through the magnetic suction piece.

[0033] In addition, a V-shaped groove 13 is formed at one end of one of the support columns 21 away from the guide groove 23. In this embodiment, the hollow tube 10 can be fixed by the V-shaped groove 13 and matched with the positioning male end 42 to improve stability.

[0034] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A gas flow vertical cut-off device, characterized in that: The gas overflow vertical cut-off device comprises a hollow tube body (10) and a steel ball (30) arranged on an exhaust hole (40) and connected to the exhaust hole (40); a support structure (20) protruding inwardly is provided on the inner wall surface of the hollow tube body (10); the hollow tube body (10) comprises an air inlet (12), a steel ball movable and airway cavity (22) and a valve port (14); the steel ball (30) is mounted on the support structure (20) and can be adsorbed to the valve port (14) under the action of the gas suction force of the exhaust hole (40) to block the valve port (14); a flow reset button push rod (50) is provided above the valve port (14).

2. The gas flow vertical cut-off device according to claim 1, characterized in that: The valve opening (14) is vertically arranged below the overcurrent reset button push rod (50), and the steel ball (30) is located below the valve opening (14).

3. The gas flow vertical cut-off device according to claim 1, characterized in that: The cut-off valve is connected to the steel ball (30) and the lower part of the hollow tube (10) via a cut-off valve connecting thread (41).

4. The gas flow vertical cut-off device according to claim 1, characterized in that: The steel ball movement and airway cavity (22) are arranged between the air inlet (12) and the valve port (14) of the hollow tube body (10), and the air inlet (12) is located at the upper end of the hollow tube body (10).

5. The gas flow vertical cut-off device according to claim 4, characterized in that: The support structure (20) comprises a plurality of support columns (21), and the plurality of support columns (21) are evenly spaced and arranged on the inner wall surface of the hollow tube (10) to enclose a steel ball activity and airway cavity (22) for holding and adsorbing the steel ball (30).

6. The gas flow vertical cut-off device according to claim 5, characterized in that: An end of the support column (21) facing away from the valve port (14) is provided with an inclined guide groove (23).

7. The gas flow vertical cut-off device according to claim 5, characterized in that: A plurality of mounting holes (11) for mounting magnetic suction components are arranged on the outer wall of the hollow tube body (10), and the mounting holes (11) are arranged opposite to the support column (21). The plurality of magnetic suction components can absorb the steel balls (30) in a magnetic suction manner.

8. The gas flow vertical cut-off device according to claim 7, characterized in that: The air inlet (12) is located between two adjacent support columns (21).

9. The gas flow vertical cut-off device according to claim 6, characterized in that: One end of one of the support columns (21) which is away from the guide groove (23) is provided with a V-shaped groove (13) which is recessed and used for positioning.

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