A gas pipeline self-closing valve

Abstract

This utility model discloses a gas pipeline self-closing valve, including a self-closing valve and a manual valve installed on one side of the pipeline. A valve core is installed on the top of the manual valve, and an installation sleeve is fitted onto the outer wall of the valve core. A lever is integrally installed on one side of the installation sleeve. A connecting post is screwed onto the top of the valve core. Six connecting blocks are evenly spaced and ring-shaped on the outer wall of the connecting post. In this utility model, when the lever is damaged, the connecting post can be unscrewed from the connecting hole. This allows the connecting post to remove the pressure ring from the top of the installation sleeve. Then, the installation sleeve is pushed upwards, causing the retaining groove to move upwards from the outer wall of the side strip. Finally, the installation sleeve can remove the damaged lever from the valve core, and then a new installation sleeve and lever can be installed. Therefore, this structure allows for independent replacement of the damaged lever during use, facilitating subsequent maintenance.

Description

Technical Field

[0001] This utility model relates to the field of self-closing valve technology, specifically a self-closing valve for gas pipelines. Background Technology

[0002] In the structural design of the gas pipeline self-closing valve, the manual switch lever is the core component for realizing manual control of the pipeline. Its main function is to allow the operator to open and close the self-closing valve pipeline by moving the lever according to actual needs, providing a convenient manual control method for emergency cut-off and daily maintenance during gas use.

[0003] However, in practical applications, the overall thickness of this manual lever is too thin. This structural issue directly leads to the lever being easily damaged due to improper operation during use. Once the manual lever is damaged, because the lever and the self-closing valve body are designed as an integrated unit, there are currently no spare parts or repair solutions for replacing the lever separately. Replacement requires completely disassembling the entire self-closing valve from the gas pipeline system, thus increasing the difficulty of maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a gas pipeline self-closing valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas pipeline self-closing valve, including a self-closing valve, a manual valve installed on a pipeline on one side of the self-closing valve, a valve core column installed on the top of the manual valve, and an installation sleeve fitted on the outer wall of the valve core column;

[0006] A lever is integrally installed on one side of the mounting sleeve, and a docking post is screwed to the top of the valve core column. Six connecting blocks are evenly spaced and ring-shaped on the outer wall of the docking post. The other ends of the six connecting blocks are fixedly connected to the inner wall of the pressure ring, and the bottom of the pressure ring abuts against the outer wall of the top of the mounting sleeve.

[0007] Preferably, the valve core column has a mating hole at its top, the mating column is screwed into the inside of the mating hole, and the depth inside the mating hole is greater than the vertical length of the mating column.

[0008] Preferably, a bottom ring is fixedly sleeved on the outer wall of the valve core near the bottom, and the bottom of the mounting sleeve movably abuts against the surface of the bottom ring.

[0009] Preferably, six side strips are installed at equal intervals on the outer wall of the valve core column, and the vertical length of the side strips is the same as the vertical length of the mounting sleeve.

[0010] Preferably, the inner wall of the mounting sleeve has six vertically penetrating slots at equal intervals, and the mounting sleeve is positioned and installed on the outer wall of the valve core column by the snap-fit ​​between the slots and the side strip.

[0011] Preferably, the bottom of the pressure ring covers the opening at the top of the slot, and the mounting sleeve is fitted between the pressure ring and the bottom ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This gas pipeline self-closing valve allows for independent replacement of damaged diaphragms by first unscrewing the connecting pin from the connecting hole. This allows the connecting pin to remove the pressure ring from the top of the mounting sleeve. Then, by pushing the mounting sleeve upwards, the mounting sleeve moves the retaining groove upwards from the outer wall of the side strip. Finally, the mounting sleeve removes the damaged diaphragm from the valve core, allowing for replacement with a new mounting sleeve and diaphragm. This structure enables independent replacement of damaged diaphragms during use, facilitating subsequent maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the mounting structure of the mounting sleeve of this utility model;

[0016] Figure 3 This is a schematic diagram of the docking post connection structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the valve core column structure of this utility model;

[0018] Figure 5 This is a bottom view of the mounting sleeve structure of this utility model.

[0019] In the diagram: 1. Self-closing valve; 2. Manual valve; 3. Valve core column; 31. Connecting hole; 32. Side strip; 33. Bottom ring; 4. Mounting sleeve; 41. Slot; 5. Paddle; 6. Connecting column; 7. Connecting block; 8. Pressure ring. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5This utility model provides a technical solution: a gas pipeline self-closing valve, including a self-closing valve 1, a manual valve 2 installed on one side of the pipeline of the self-closing valve 1, a valve core column 3 installed on the top of the manual valve 2, and an installation sleeve 4 sleeved on the outer wall of the valve core column 3;

[0022] A paddle 5 is integrally installed on one side of the mounting sleeve 4. A docking post 6 is screwed to the top of the valve core post 3. Six connecting blocks 7 are evenly spaced and ring-shaped on the outer wall of the docking post 6. The other ends of the six connecting blocks 7 are fixedly connected to the inner wall of the pressure ring 8. The bottom of the pressure ring 8 abuts against the outer wall of the top of the mounting sleeve 4.

[0023] When in use, connect the self-closing valve 1 to the corresponding interface on the gas pipeline. The self-closing valve 1 is equipped with an overcurrent cut-off mechanism. Under normal use, when the gas flow is within the safe range, the mechanism remains open. When the flow exceeds the set value, which is generally 2-3 times the normal maximum flow, such as when the maximum flow of a single burner of the stove is about 0.5 m³ / h and the overcurrent threshold is about 1-1.5 m³ / h, the high-speed airflow will push the overcurrent mechanism to close quickly, preventing continuous gas leakage.

[0024] The valve core column 3 has a docking hole 31 at its top, and the docking column 6 is screwed into the docking hole 31, with the depth of the docking hole 31 being greater than the vertical length of the docking column 6.

[0025] A bottom ring 33 is fixedly sleeved on the outer wall of the valve core column 3 near the bottom, and the bottom of the mounting sleeve 4 movably abuts against the surface of the bottom ring 33.

[0026] After the mounting sleeve 4 is installed on the valve core column 3, the docking column 6 is screwed into the docking hole 31. The spacing between the six connecting blocks 7 during screwing can be used to insert a finger to rotate the docking column 6, thereby facilitating the docking column 6 and the docking hole 31 to mate.

[0027] After the docking column 6 is installed, it will cause the pressure ring 8 to press against the top of the mounting sleeve 4. In this way, the mounting sleeve 4 will be fixed on the outer wall of the valve core column 3 with the cooperation of the pressure ring 8 and the bottom ring 33.

[0028] Six side strips 32 are evenly installed on the outer wall of the valve core column 3, and the vertical length of the side strips 32 is the same as the vertical length of the mounting sleeve 4.

[0029] The inner wall of the mounting sleeve 4 has six vertically penetrating slots 41 at equal intervals. The mounting sleeve 4 is positioned and installed on the outer wall of the valve core column 3 by the snap-fit ​​between the slots 41 and the side strip 32.

[0030] After the mounting sleeve 4 is installed on the valve core column 3, the six slots 41 on the inner wall of the mounting sleeve 4 will be engaged with the corresponding side strips 32. When the lever 5 is moved, the lever 5 will drive the mounting sleeve 4 to rotate. When the mounting sleeve 4 rotates, it will drive the side strips 32 to rotate through the slots 41, so that the side strips 32 can drive the valve core column 3 to rotate.

[0031] The bottom of the pressure ring 8 covers the opening at the top of the slot 41, and the mounting sleeve 4 is fitted between the pressure ring 8 and the bottom ring 33.

[0032] Working principle: When using a gas pipeline self-closing valve, if the detonator 5 is damaged, first unscrew the connecting post 6 from the connecting hole 31. This allows the connecting post 6 to remove the pressure ring 8 from the top of the mounting sleeve 4. Then, push the mounting sleeve 4 upwards, causing the retaining groove 41 to move upwards from the outer wall of the side strip 32. Finally, the mounting sleeve 4 will remove the damaged detonator 5 from the valve core post 3. Then, replace it with a new mounting sleeve 4 and detonator 5. Thus, this structure allows for independent replacement of the damaged detonator 5 during use, facilitating subsequent maintenance.

[0033] This is the characteristic of the gas pipeline self-closing valve. The contents not described in detail in this instruction belong to the prior art known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas pipeline self-closing valve, comprising a self-closing valve (1), wherein a manual valve (2) is installed on a pipeline on one side of the self-closing valve (1), and a valve core column (3) is installed on the top of the manual valve (2), characterized in that, An installation sleeve (4) is fitted onto the outer wall of the valve core column (3). A paddle (5) is integrally installed on one side of the mounting sleeve (4), and a docking post (6) is screwed onto the top of the valve core post (3). Six connecting blocks (7) are evenly spaced and ring-shaped on the outer wall of the docking post (6). The other end of the six connecting blocks (7) is fixedly connected to the inner wall of the pressure ring (8), and the bottom of the pressure ring (8) abuts against the outer wall of the top of the mounting sleeve (4).

2. The gas pipeline self-closing valve according to claim 1, characterized in that: The valve core column (3) has a docking hole (31) at its top. The docking column (6) is screwed into the docking hole (31), and the depth inside the docking hole (31) is greater than the vertical length of the docking column (6).

3. A gas pipeline self-closing valve according to claim 1, characterized in that: A bottom ring (33) is fixedly sleeved on the outer wall near the bottom of the valve core column (3), and the bottom of the mounting sleeve (4) moves against the surface of the bottom ring (33).

4. A gas pipeline self-closing valve according to claim 1, characterized in that: Six side strips (32) are evenly installed on the outer wall of the valve core column (3), and the vertical length of the side strips (32) is the same as the vertical length of the mounting sleeve (4).

5. A gas pipeline self-closing valve according to claim 1, characterized in that: The inner wall of the mounting sleeve (4) has six slots (41) that run vertically through it at equal intervals. The mounting sleeve (4) is positioned and installed on the outer wall of the valve core column (3) by the snap-fit ​​between the slots (41) and the side strip (32).

6. A gas pipeline self-closing valve according to claim 1, characterized in that: The bottom of the pressure ring (8) covers the opening at the top of the slot (41), and the mounting sleeve (4) is fitted between the pressure ring (8) and the bottom ring (33).

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