Gas valve convenient to connect

Abstract

The utility model discloses a gas valve convenient to connect, which comprises a valve body and a gas inlet valve rod arranged on one side of the valve body, a connecting inner end is arranged on the gas inlet valve rod, an inner inserting pipe is arranged on the gas inlet valve rod, a mounting sleeve is arranged on the outer side of the inner inserting pipe, a clamping groove is arranged on the gas inlet valve rod, and a connecting inner end is arranged on the connecting inner end. A clamping block is arranged behind the mounting sleeve, internal thread teeth are arranged in the mounting sleeve, the air inlet valve rod and a connecting pipe can be mounted, a connecting pipe inner head is arranged at the top end of the connecting pipe, external thread teeth are arranged on the connecting pipe inner head, a check block is arranged in the connecting pipe, and a check block is also arranged in the air outlet valve rod. Rotation of the valve rod is replaced by rotation of the installation sleeve, the installation process is simplified, the installation precision is improved, the valve is more convenient to control, repeated adjustment is not needed after installation, installation and adjustment of the valve can be completed more rapidly, and controllability of the valve is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to gas valves, and in particular relates to a gas valve that is easy to connect. Background Art

[0002] A gas valve is a valve device used to control the flow of gas. It is usually installed on a gas pipeline and can be used to open or close the flow of gas manually or automatically to prevent fire or other safety accidents. Gas valves are needed in the use of natural gas. Gas valves are used to cut off, connect and regulate the gas in the pipeline. They have good control characteristics and closing and sealing performance. They are suitable for various gas medium pipelines such as city gas, liquefied petroleum gas, natural gas and oxygen. Existing gas valves are generally provided with internal thread grooves at both ends to facilitate the connection of gas pipelines.

[0003] However, during the installation of these valves, the valve stem will rotate with the rotation of the internal thread of the valve seat, and the installation position of the valve stem is difficult to determine. After installation, it is necessary to remove the valve stem repeatedly and adjust the length of the gas pipeline thread to determine the installation angle of the valve so that the valve stem is in an obvious position to facilitate the control of the valve, which makes the installation process more troublesome. Utility Model Content

[0004] The utility model aims to provide a gas valve which is easy to connect, so as to solve the problem that during the installation of these valves proposed in the above-mentioned background technology, the valve stem will rotate with the rotation of the internal thread of the valve seat, so that the installation position of the valve stem is difficult to determine, and it needs to be repeatedly removed after installation to adjust the length of the gas pipeline thread to determine the installation angle of the valve so that the valve stem is in an obvious position to facilitate the control of the valve, thereby causing a more troublesome installation process.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas valve that is easy to connect, comprising a valve body and an air intake valve stem arranged on one side of the valve body;

[0006] An outlet valve stem is arranged on the other side of the valve body, a valve cover is arranged above the valve body, a lifting sleeve is arranged above the valve cover, a self-closing top cap is arranged inside the lifting sleeve, a valve switch is arranged on the outlet valve stem, and a connecting inner end is arranged on the outlet valve stem;

[0007] The air intake valve stem is provided with an inner insert tube, an outer side of the inner insert tube is provided with a mounting sleeve, the air intake valve stem is provided with a slot, a blocking block is provided at the rear of the mounting sleeve, and internal threaded teeth are provided inside the mounting sleeve. The air intake valve stem can be installed with a connecting pipe, a connecting pipe inner head is provided at the top end of the connecting pipe, external threaded teeth are provided on the connecting pipe inner head, a block is provided inside the connecting pipe, and a block is also provided inside the air outlet valve stem.

[0008] Preferably, the mounting sleeve is integrally connected with the clamping block, the cross-section of the clamping block is L-shaped, the clamping block is an annular structure, and the mounting sleeve can be clamped with the clamping groove on the intake valve stem through the clamping block.

[0009] Preferably, the internal thread teeth are integrally connected to the mounting sleeve, the external thread teeth are integrally connected to the inner head of the connecting pipe and the inner end of the connection respectively, and the mounting sleeve is threadedly connected to the external thread teeth via the internal thread teeth.

[0010] Preferably, the stopper is integrally connected to the connecting pipe and the connecting inner end respectively, the cross section of the stopper is L-shaped, and the stopper is an annular structure.

[0011] Preferably, corner sealing gaskets are provided on the upper surface and inner wall of the stopper, and the corner sealing gaskets are fixedly connected to the stopper, and the corner sealing gaskets can prevent corner gas leakage.

[0012] Preferably, an outer layer of the inner insert tube is provided with an outer layer sealing gasket, the outer layer sealing gasket is fixedly connected to the inner insert tube, and the outer layer sealing gasket is used to fill the gap between the connecting tube and the connecting inner end and the inner insert tube.

[0013] Preferably, the front sides of the inner head and the inner end of the connecting tube are provided with arc-shaped protrusions, the cross-section of the arc-shaped protrusions is semicircular, the arc-shaped protrusions are annular structures, and the arc-shaped protrusions are integrally connected with the inner head and the inner end of the connecting tube.

[0014] Preferably, an arc-angle sealing gasket is provided on the intake valve stem, the cross-section of the arc-angle sealing gasket is arc-shaped, and the arc-shaped protrusion can be plugged into the arc-angle sealing gasket.

[0015] Compared with the prior art, the utility model provides a gas valve that is easy to connect and has the following beneficial effects:

[0016] 1. By using the rotation of the installation sleeve instead of the rotation of the valve stem, the installation process of the valve is simplified. There is no need to repeatedly remove the valve or adjust the length of the gas pipeline thread, making the installation process more efficient and convenient. The use of the installation sleeve and related parts can make it easier to determine the installation position of the valve stem, avoiding the problem that the valve stem will rotate with the rotation of the internal thread of the valve seat. This can ensure the accuracy of the valve installation angle and improve the installation accuracy. By simplifying the installation process and improving the installation accuracy, the control of the valve is more convenient. There is no need for repeated adjustments after installation. The installation and adjustment of the valve can be completed more quickly, which improves the controllability of the valve. This installation method reduces the troubles that may occur during the installation process, such as the rotation of the valve stem with the internal thread of the valve seat and the difficulty in adjusting the installation angle. This can save time and energy and reduce the trouble and uncertainty of the installation process.

[0017] 2. The gas valve adopts multiple sealing and blocking structures to effectively prevent gas leakage, improve the safety of the gas valve, do not need to rely on external sealing accessories, and can reduce the risk of leakage caused by poor sealing. Since the valve itself has multiple sealing and blocking structures, there is no need to use additional tape or other sealing accessories during installation, which simplifies the installation process, which can save installation time and labor costs and improve installation efficiency. The setting of multiple sealing and blocking structures can improve the durability of the valve and reduce the risk of damage and failure caused by poor sealing. This can extend the service life of the valve and reduce the frequency of maintenance and replacement. The multiple sealing and blocking structure design of the gas valve brings many benefits, including improved safety, simplified installation process, reduced maintenance costs and improved durability. These advantages make the valve more reliable and economical in practical applications and bring many conveniences to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the connection part of the utility model.

[0020] Figure 3 This is an exploded view of the intake valve stem of the utility model.

[0021] Figure 4 For the utility model Figure 2 Schematic diagram of the local structure.

[0022] In the figure: 1. Connect the inner end; 2. Exhaust valve stem; 3. Valve switch; 4. Arc angle gasket; 5. Valve cover; 6. Lifting sleeve; 7. Self-closing top cap; 8. Valve body; 9. Inlet valve stem; 10. Mounting sleeve; 11. Inner insert; 12. Block; 13. Connecting pipe; 14. Angle gasket; 15. Outer gasket; 16. External thread teeth; 17. Inner head of connecting pipe; 18. Internal thread teeth; 19. Block; 20. Slot; 21. Arc convex block. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] The utility model provides Figure 1-4 A gas valve that is easy to connect is shown, comprising a valve body 8 and an intake valve stem 9 arranged on one side of the valve body 8;

[0025] An outlet valve stem 2 is arranged on the other side of the valve body 8, a valve cover 5 is arranged above the valve body 8, a lifting sleeve 6 is arranged above the valve cover 5, a self-closing top cap 7 is arranged inside the lifting sleeve 6, a valve switch 3 is arranged on the outlet valve stem 2, and a connecting inner end 1 is arranged on the outlet valve stem 2;

[0026] An inner insert tube 11 is provided on the air intake valve stem 9, a mounting sleeve 10 is provided on the outer side of the inner insert tube 11, a card slot 20 is provided on the air intake valve stem 9, a card block 19 is provided at the rear of the mounting sleeve 10, and internal thread teeth 18 are provided inside the mounting sleeve 10. The air intake valve stem 9 can be installed with a connecting pipe 13, a connecting pipe inner head 17 is provided at the top end of the connecting pipe 13, and external thread teeth 16 are provided on the connecting pipe inner head 17, a block 12 is provided inside the connecting pipe 13, and a block 12 is also provided inside the air outlet valve stem 2.

[0027] like Figure 3 and Figure 4 As shown, the mounting sleeve 10 is integrally connected with the clamping block 19, the cross-section of the clamping block 19 is L-shaped, and the clamping block 19 is an annular structure. The mounting sleeve 10 can be clamped with the clamping groove 20 on the intake valve stem 9 through the clamping block 19, the internal thread teeth 18 are integrally connected with the mounting sleeve 10, and the external thread teeth 16 are respectively integrally connected with the inner head 17 of the connecting pipe and the connecting inner end 1, the mounting sleeve 10 is threadedly connected with the external thread teeth 16 through the internal thread teeth 18, and the block 12 is respectively integrally connected with the connecting pipe 13 and the connecting inner end 1, the cross-section of the block 12 is L-shaped, and the block 12 is an annular structure, and angled sealing gaskets 14 are arranged on the top and inner wall of the block 12, and the angled sealing gaskets 14 are fixedly connected to the block 12, and the angled sealing gaskets 14 can prevent the angled gas from leaking.

[0028] like Figure 2 and Figure 3 As shown, the outer layer of the inner tube 11 is provided with an outer sealing gasket 15, and the outer sealing gasket 15 is fixedly connected to the inner tube 11. The outer sealing gasket 15 is used to fill the gap between the connecting tube 13 and the connecting inner end 1 and the inner tube 11. The connecting tube inner head 17 and the front of the connecting inner end 1 are provided with an arc-shaped protrusion 21. The cross-section of the arc-shaped protrusion 21 is semicircular, and the arc-shaped protrusion 21 is an annular structure. The arc-shaped protrusion 21 is integrally connected with the connecting tube inner head 17 and the connecting inner end 1. An arc-shaped sealing gasket 4 is provided on the intake valve stem 9. The cross-section of the arc-shaped sealing gasket 4 is arc-shaped, and the arc-shaped protrusion 21 can be plugged into the arc-shaped sealing gasket 4.

[0029] Preferably, by setting the mounting sleeve 10, the internal thread teeth 18, the external thread teeth 16, the clamping block 19 and the clamping groove 20, the mounting sleeve 10 is clamped with the clamping groove 20 on the intake valve stem 9 through the clamping block 19, and the mounting sleeve 10 can be rotated on the clamping groove 20 through the clamping block 19. When installing the connecting pipe 13 and the intake valve stem 9, the connecting pipe 13 is firstly docked with the gap between the inner insert pipe 11 and the mounting sleeve 10, and then the internal thread teeth 18 inside the mounting sleeve 10 and the external thread teeth 16 on the inner head 17 of the connecting pipe can be fixedly installed by threading by rotating the mounting sleeve 10, and the inner head 17 of the connecting pipe can be screwed into the inner insert pipe 11 and the mounting sleeve through the thread. The gap between the sleeves 10 and the connecting pipe 13, the other end of which is connected to the outlet valve stem 2, is provided with the same structure as the inlet valve stem 9. Similarly, the outlet valve stem 2 is also fixedly installed with the connecting pipe 13, and finally the overall installation of the gas valve is completed. The gas valve avoids the problem that the valve stem rotates with the rotation of the inner thread of the valve seat during the installation of the valve. The rotation of the mounting sleeve 10 replaces the rotation of the valve stem, so that the installation position of the valve stem is easier to determine, and there is no need to repeatedly remove the valve stem after installation to adjust the length of the gas pipeline thread to determine the installation angle of the valve, which makes it more convenient to control the valve and reduces the trouble of the valve installation process.

[0030] Preferably, since traditional gas valves generally lack sealing components or have poor sealing effects, it is often necessary to wrap raw tape around the external threaded surface of the gas pipeline or use other sealing accessories for sealing during the installation process. The gas valve is provided with a stopper 12 and an angled sealing gasket 14. When the inner tube 11 is inserted into the connecting tube 13, it will eventually connect with the stopper 12. At this time, the angled sealing gasket 14 is clamped between the stopper 12 and the inner tube 11 to seal the gap. Through the provision of an outer sealing gasket 15, an arc-shaped protrusion 21 and an arc-shaped sealing gasket 4, after the valve is installed in place, the outer sealing gasket 15 is clamped between the inner tube 11 and the inner head 17 of the connecting tube and the inner end 1 of the connection to play a blocking and sealing role. Thereafter, through the docking of the arc-shaped protrusion 21 with the arc-shaped sealing gasket 4, the gas can be sealed again. Through the provision of the triple sealing and blocking structure of the device, the gas valve does not need to be wrapped with tape or sealing accessories during installation, thereby improving the installation efficiency of the gas valve.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas valve that is easy to connect, comprising a valve body (8) and an air intake valve stem (9) arranged on one side of the valve body (8); An outlet valve stem (2) is arranged on the other side of the valve body (8), a valve cover (5) is arranged above the valve body (8), a lifting sleeve (6) is arranged above the valve cover (5), a self-closing top cap (7) is arranged inside the lifting sleeve (6), a valve switch (3) is arranged on the outlet valve stem (2), and a connecting inner end (1) is arranged on the outlet valve stem (2); Features: The inlet valve stem (9) is provided with an inner insert tube (11), the outer side of the inner insert tube (11) is provided with a mounting sleeve (10), the inlet valve stem (9) is provided with a clamping groove (20), a clamping block (19) is provided at the rear of the mounting sleeve (10), the mounting sleeve (10) is provided with internal thread teeth (18), the inlet valve stem (9) can be installed with a connecting pipe (13), the top end of the connecting pipe (13) is provided with a connecting pipe inner head (17), the connecting pipe inner head (17) is provided with external thread teeth (16), a stopper (12) is provided inside the connecting pipe (13), and a stopper (12) is also provided inside the outlet valve stem (2).

2. A gas valve that is easy to connect according to claim 1, characterized in that: The mounting sleeve (10) is integrally connected to the clamping block (19); the clamping block (19) has an L-shaped cross section; the clamping block (19) is an annular structure; and the mounting sleeve (10) can be clamped with a clamping groove (20) on the intake valve stem (9) through the clamping block (19).

3. A gas valve that is easy to connect according to claim 2, characterized in that: The internal thread teeth (18) are integrally connected to the installation sleeve (10), the external thread teeth (16) are respectively integrally connected to the inner head (17) of the connecting pipe and the connecting inner end (1), and the installation sleeve (10) is threadedly connected to the external thread teeth (16) via the internal thread teeth (18).

4. A gas valve that is easy to connect according to claim 3, characterized in that: The stopper (12) is integrally connected to the connecting pipe (13) and the connecting inner end (1) respectively; the cross section of the stopper (12) is L-shaped; and the stopper (12) is an annular structure.

5. A gas valve that is easy to connect according to claim 4, characterized in that: A folded corner sealing gasket (14) is provided on the upper surface and the inner wall of the stopper (12); the folded corner sealing gasket (14) is fixedly connected to the stopper (12); and the folded corner sealing gasket (14) can prevent gas leakage at the folded corner.

6. The gas valve that is easy to connect according to claim 1, characterized in that: The outer layer of the inner insert tube (11) is provided with an outer sealing gasket (15), the outer sealing gasket (15) is fixedly connected to the inner insert tube (11), and the outer sealing gasket (15) is used to fill the gap between the connecting tube (13) and the connecting inner end (1) and the inner insert tube (11).

7. The gas valve for easy connection according to claim 6, characterized in that: The front sides of the connecting tube inner head (17) and the connecting inner end (1) are provided with arc-shaped protrusions (21), the cross section of the arc-shaped protrusions (21) is semicircular, the arc-shaped protrusions (21) are annular structures, and the arc-shaped protrusions (21) are integrally connected to the connecting tube inner head (17) and the connecting inner end (1).

8. The gas valve for easy connection according to claim 7, characterized in that: An arc-angle sealing pad (4) is arranged on the air intake valve stem (9); the arc-angle sealing pad (4) has an arc-shaped cross section; and the arc-shaped protrusion (21) can be plugged into the arc-angle sealing pad (4).

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