Valve for gas pipeline

Abstract

The utility model discloses a valve for a gas pipeline, and relates to the technical field of gas valves, the valve for the gas pipeline comprises a valve body, a valve cover is fixedly arranged at the upper end of the valve body, a pull rod is vertically arranged at the central part of the valve cover in a penetrating manner, the valve further comprises a housing, and the housing is fixedly arranged on the upper surface of the valve cover; the impact ball is movably mounted on the inner side wall of the housing; the rotating disc is rotationally arranged on the upper surface of the valve cover and located in the housing, and an extrusion block is fixedly arranged on the peripheral surface of the rotating disc and used for driving the impact ball to knock the housing; the rotating ring is arranged on the peripheral face of the pull rod in a sleeving mode and located outside the housing. According to the utility model, the spring is tightened by the rotating ring, and the spring can drive the rotating disc to rotate when underpressure, overpressure or overcurrent occurs in the pipeline, so that the impact ball is driven to knock the housing to give out warning sound, the limitation of power supply is avoided, and the defect that warning cannot be given out during power failure is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, in particular to a valve for gas pipelines. Background Art

[0002] A self-closing valve is a valve installed on the pipeline of a low-pressure gas system. When the pipeline gas supply is underpressure, overpressure or overcurrent, it can automatically close without electricity or other external power. It can greatly improve the safety of gas during use. It is the only gas safety protection product in my country that is clearly legislated for use.

[0003] In the patent with announcement number CN218761671 U, a usage status warning device for a gas self-closing valve and a gas self-closing valve thereof are proposed. The device is provided with a sensor, an LED light, a buzzer and a gas detection module, so that the warning device has the ability to monitor and warn of underpressure, overpressure and overcurrent phenomena of the gas self-closing valve in real time, effectively increasing the detection capability and warning function of the warning device.

[0004] However, since the device uses electrical components, it needs to be powered on to work properly and play a role. When the power is off, the device cannot play its detection and warning role. Utility Model Content

[0005] The utility model provides a valve for a gas pipeline, which has the advantage of being able to issue an alarm without the need for electricity through a mechanical device, so as to solve the problems raised in the background technology.

[0006] In order to achieve the purpose of issuing an alarm through a mechanical device without the need for electricity, the utility model provides the following technical solutions: a valve for a gas pipeline, comprising a valve body, a valve cover is fixedly provided on the upper end of the valve body, a pull rod is vertically passed through the center part of the valve cover, and further comprising: a cover shell, the cover shell is fixedly provided on the upper surface of the valve cover; an impact ball, the impact ball is movably mounted on the inner side wall of the cover shell, the impact ball is used to knock on the cover shell to issue a warning sound; a rotating disk, the rotating disk is rotatably provided on the upper surface of the valve cover and is located inside the cover shell, the outer circumferential surface of the rotating disk is fixedly provided with an extrusion block, the extrusion block is used to drive the impact ball to knock on the cover shell; a rotating ring, the rotating ring is sleeved on the outer circumferential surface of the pull rod and is located outside the cover shell, the lower end of the rotating ring is provided with an extension portion, the extension portion The outer peripheral surface of the cover is provided with an annular groove, the central part of the cover shell is provided with a first through hole, and the side wall of the first through hole is located in the annular groove; the upper surface of the rotating disk is provided with a sunken groove, the lower end of the extension part is located in the sunken groove, and a spring is provided in the sunken groove, one end of the spring is fixedly provided on the side wall of the sunken groove, and the other end of the spring is fixedly provided on the extension part; an upper locking structure, the upper locking structure is provided between the rotating ring and the cover shell, and the upper locking structure is used to limit the unidirectional rotation of the rotating ring; a lower locking structure, the lower locking structure is provided between the rotating disk and the pull rod, and the lower locking structure is used to lock or unlock the rotating disk, so that when the valve is in the open state, the rotating disk is in the locked state, and when the valve is in the closed state, the rotating disk is in the unlocked state.

[0007] As a preferred technical solution of the present invention, the diameter of the extension part is smaller than the diameter of the rotating ring, so that a step part is formed at the intersection of the rotating ring and the extension part; the upper locking structure includes a receiving groove opened vertically upward on the step part, an upper saw gear is provided in the receiving groove, a second positioning block is fixedly provided on the upper surface of the upper saw gear, a vertical groove is opened on the inner wall of the receiving groove, the second positioning block slides in the vertical groove, so that the rotating ring drives the upper saw gear to rotate; a lower saw gear is fixedly provided at the center of the upper surface of the cover shell, the lower saw gear is engaged with the upper saw gear, and the lower saw gear is used to make the upper saw gear rotate in one direction; a first spring is provided between the upper surface of the upper saw gear and the top of the receiving groove, and the first spring applies pressure to the upper saw gear.

[0008] As an optimal technical solution of the present invention, a slip ring is fixedly provided at the bottom of the rotating disk, a sliding groove is provided on the upper surface of the valve body, and the slip ring slides in the sliding groove; a second through hole is provided at the center of the rotating disk, and the lower end of the pull rod passes through the second through hole.

[0009] As a preferred technical solution of the present invention, the lower locking structure includes a locking groove opened on the inner wall of the second through hole, and the outer peripheral surface of the pull rod located at the second through hole is fixed with a first locking block, which can be engaged or disengaged with the locking groove in the vertical direction to lock or unlock the rotating disk.

[0010] As an optimal technical solution of the present invention, a second spring is fixedly provided on the inner wall of the cover shell, the axis of the second spring is directed toward the center of the cover shell and tilted upward; the impact ball is fixedly provided at one end of the second spring close to the center of the cover shell.

[0011] As a preferred technical solution of the present invention, the upper surface of the extrusion block is higher than the top of the impact ball; the lower surface of the extrusion block is set as an inclined surface, so that when the extrusion block contacts the impact ball, the impact ball is squeezed downward along the inclined surface.

[0012] As a preferred technical solution of the present invention, the pull rod consists of an upper rod and a lower rod, the upper rod and the lower rod are connected by threads, and the connecting portion between the upper rod and the lower rod is located inside the valve cover.

[0013] Compared with the prior art, the present invention provides a valve for gas pipelines, which has the following beneficial effects:

[0014] 1. The gas pipeline valve is provided with a rotating ring, a rotating disk, a spring, a cover and an impact ball. The spring is tightened by the rotating ring. When underpressure, overpressure or overcurrent occurs in the pipeline, the spring can drive the rotating disk to rotate, thereby driving the impact ball to strike the cover to emit a warning sound. The device is mechanically driven and is not restricted by power supply, avoiding the disadvantage of not being able to issue a warning when the power is off.

[0015] 2. The gas pipeline valve is configured such that a rotating ring and a rotating disk are sleeved on a pull rod and the rotating ring is supported by a cover, so that multiple structures can be integrated above the valve cover. The overall structure is compact and does not require additional area during installation, making it easy to install and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a front cross-sectional view of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the rotating ring, cover and valve cover of the utility model;

[0019] Figure 4 This is a schematic diagram of the cooperation between the rotating ring, rotating disk, cover and pull rod of the utility model;

[0020] Figure 5 This is an exploded view of the rotating ring, upper locking structure, and cover of the utility model;

[0021] Figure 6 For this utility model Figure 5 Enlarged schematic diagram of area A in the middle;

[0022] Figure 7 This is a diagram showing the cooperation between the rotating ring, the cover, the upper locking structure and the rotating disk of the present invention;

[0023] Figure 8 This is a diagram showing the coordination of the pull rod, rotating disk and lower locking structure of the utility model.

[0024] In the figure: 1. button; 2. pull rod; 21. first locking block; 3. cover; 31. first through hole; 4. valve cover; 41. slide groove; 5. valve body; 6. holding rod; 7. trigger rod; 8. ventilation ring; 9. sealing plug; 10. diaphragm; 11. rotating ring; 111. accommodating groove; 112. extension part; 113. annular groove; 114. vertical groove; 12. first spring; 13. upper saw gear; 131. second locking block; 14. lower saw gear; 15. rotating disk; 151. extrusion block; 152. sinking groove; 153. slip ring; 154. locking groove; 155. second through hole; 16. spring; 17. second spring; 18. impact ball. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5When the diaphragm 10 is in the air, the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air, and the diaphragm 10 is in the air.

[0027] The device also includes a cover shell 3, which is fixed to the upper surface of the valve cover 4. The material of the cover shell 3 is preferably metal so that the cover shell 3 can make a sound when it is hit. An impact ball 18 is also movably installed on the inner wall of the movable cover shell 3. The impact ball 18 can swing upward, thereby knocking on the inner wall of the cover shell 3 to make a warning sound.

[0028] In addition, in order to drive the impact ball 18 to move, a rotating disk 15 is provided on the upper surface of the valve cover 4 and inside the cover shell 3. An extrusion block 151 is fixedly provided on the outer circumference of the rotating disk 15. When the rotating disk 15 rotates, the extrusion block 151 contacts the impact ball 18 and drives the impact ball 18 to hit the cover shell 3. Multiple extrusion blocks 151 can be set along the outer circumference of the rotating disk 15 to produce a continuous warning sound.

[0029] In addition, in order to provide rotational power to the rotating disk 15, a rotating ring 11 is also provided on the outer peripheral surface of the pull rod 2 and outside the cover shell 3. The lower end of the rotating ring 11 is provided with an extension portion 112, and the outer peripheral surface of the extension portion 112 is provided with an annular groove 113. A first through hole 31 is provided in the center of the cover shell 3, and the side wall of the first through hole 31 is located in the annular groove 113, so that the rotating ring 11 is clamped on the cover shell 3 through the annular groove 113 to avoid the movement of the pull rod 2 affecting the rotating ring 11.

[0030] A sunken groove 152 is defined on the upper surface of the rotating disk 15 , with the lower end of the extension 112 positioned within the groove 152 . A spring 16 is disposed within the groove 152 . One end of the spring 16 is secured to a sidewall of the groove 152 , while the other end of the spring 16 is secured to the extension 112 . Rotating the rotating ring 11 tightens the spring 16 , and the elastic potential energy of the spring 16 drives the rotating disk 15 to rotate.

[0031] In addition, in order to prevent the rotating ring 11 from rotating after tightening the mainspring 16, an upper locking structure is provided between the rotating ring 11 and the cover 3. The upper locking structure is used to limit the unidirectional rotation of the rotating ring 11 to prevent the rotating ring 11 from rotating.

[0032] Furthermore, in order to keep the rotating disk 15 in a stationary state when the valve is in the open state, a lower locking structure is provided between the rotating disk 15 and the pull rod 2. The lower locking structure is used to lock or unlock the rotating disk 15, so that when the valve is in the open state, the rotating disk 15 is in a locked state, and when the valve is in the closed state, the rotating disk 15 is in an unlocked state, thereby preventing the impact ball 18 from hitting the cover 3 when the valve is in the open state.

[0033] In this embodiment, the user can manually rotate the rotating ring 11. Under the action of the upper locking structure and the lower locking structure, the spring 16 in the rotating disk 15 is gradually tightened, thereby providing the rotating disk 15 with the power required for rotation. When the valve is closed due to underpressure, overpressure or overcurrent, the pull rod 2 moves up or down, thereby unlocking the rotating disk 15 through the lower locking structure, and then the extrusion block 151 with the impact ball 18 knocks on the cover 3 to make a warning sound. The device is mechanically driven and can be used even when the power is off.

[0034] Combine Figure 5 and Figure 6 In order to facilitate the installation of the upper locking structure, the diameter of the extension portion 112 is smaller than the diameter of the rotating ring 11, so that a step portion is formed at the intersection of the rotating ring 11 and the extension portion 112.

[0035] In addition, the upper locking structure includes a receiving groove 111 opened vertically upward on the stepped portion, and an upper serrated gear 13 is provided in the receiving groove 111. The serrations of the upper serrated gear 13 are provided on the lower surface, and a second latching block 131 is fixedly provided on the upper surface of the upper serrated gear 13. A vertical groove 114 is opened on the inner wall of the receiving groove 111. The height of the vertical groove 114 is greater than the height of the second latching block 131, so that the second latching block 131 can slide in the vertical groove 114. When the rotating ring 11 rotates, the upper serrated gear 13 can be driven to rotate through the cooperation between the vertical groove 114 and the second latching block 131.

[0036] In addition, a lower saw gear 14 is fixedly provided at the center of the upper surface of the cover shell 3. The lower saw gear 14 is arranged around the first through hole 31, and the serrations of the lower saw gear 14 are arranged on the upper surface. The lower saw gear 14 fits with the upper saw gear 13, so that when the rotating ring 11 rotates in one direction, the upper saw gear 13 slides upward along the vertical groove 114, so that the rotation of the rotating ring 11 is not hindered. When the rotating ring 11 rotates in the opposite direction, the lower saw gear 14 hinders the rotation of the upper saw gear 13, thereby preventing the rotating ring 11 from rotating after tightening the mainspring 16.

[0037] Furthermore, in order to improve the stability of the movement of the upper saw gear 13, a first spring 12 is provided between the upper surface of the upper saw gear 13 and the top of the accommodating groove 111, and the first spring 12 always applies a pressure to the upper saw gear 13 toward the lower saw gear 14.

[0038] Combine Figure 2 and Figure 5 In order to facilitate the installation of the rotating disk 15, a slip ring 153 is fixed at the bottom of the rotating disk 15, and a slide groove 41 is opened on the upper surface of the valve body 5. The slip ring 153 slides in the slide groove 41 to facilitate the rotation of the rotating disk 15. A second through hole 155 is opened in the center of the rotating disk 15. The lower end of the pull rod 2 passes through the second through hole 155, so that the rotation of the rotating disk 15 and the movement of the pull rod 2 in the vertical direction do not interfere with each other.

[0039] A locking groove 154 is formed on the inner wall of the second through hole 155 , and a first locking block 21 is fixed to the outer peripheral surface of the pull rod 2 at the second through hole 155 . The first locking block 21 can be engaged with or disengaged from the locking groove 154 in the vertical direction to lock or unlock the rotating disk 15 .

[0040] Combine Figure 2 - Figure 4 In order to increase the impact force of the impact ball 18 on the cover shell 3, a second spring 17 is fixed on the inner wall of the cover shell 3. The axis of the second spring 17 is toward the center of the cover shell 3 and inclined upward, and the impact ball 18 is fixed to one end of the second spring 17 close to the center of the cover shell 3, so that when the extrusion block 151 drives the impact ball 18 to move downward, it drives the second spring 17 to press downward and increase the deformation of the second spring 17. When the extrusion block 151 passes over the impact ball 18, the second spring 17 drives the impact ball 18 to swing upward, so that the impact ball 18 hits the cover shell 3 with greater force.

[0041] Combine Figure 4 or Figure 5 In order to improve the smoothness of the contact between the extrusion block 151 and the impact ball 18, the upper surface of the extrusion block 151 is higher than the top of the impact ball 18, and the lower surface of the extrusion block 151 is set to an inclined surface, so that when the extrusion block 151 contacts the impact ball 18, the impact ball 18 is squeezed downward along the inclined surface.

[0042] In order to facilitate the disassembly and assembly of the device, the pull rod 2 is preferably composed of an upper rod and a lower rod, the upper rod and the lower rod are connected by a thread, and the connection between the upper rod and the lower rod is located inside the valve cover 4, so that when the device needs maintenance, the upper rod can be rotated and removed first, and then other components can be removed in turn, avoiding the need to disassemble the device from the valve cover 4 and the need for gas cutting.

[0043] The working principle and usage process of the present invention are as follows: when in use, the rotating ring 11 is first rotated to tighten the mainspring 16. Under the action of the upper locking structure, the rotating ring 11 can only rotate in one direction and cannot rotate back. When the pull rod 2 moves up or down, the first locking block 21 disengages from the locking groove 154 to release the lock on the rotating disk 15. The rotating disk 15 rotates under the action of the mainspring 16, thereby driving the extrusion block 151 to rotate and causing the extrusion block 151 to push the impact ball 18 downward. At the same time, the second spring 17 bends downward. When the extrusion block 151 passes over the impact ball 18, the second spring 17 swings upward and drives the impact ball 18 to knock on the cover 3, thereby issuing a warning sound to remind the user.

[0044] To sum up, the gas pipeline valve is provided with a rotating ring 11, a rotating disk 15, a spring 16, a cover 3 and an impact ball 18. The spring 16 is tightened by the rotating ring 11. When underpressure, overpressure or overcurrent occurs in the pipeline, the spring 16 can drive the rotating disk 15 to rotate, thereby driving the impact ball 18 to knock on the cover 3 to issue a warning sound. The device is mechanically driven and is not restricted by power supply, avoiding the disadvantage of not being able to issue a warning when the power is off; by sleeves of the rotating ring 11 and the rotating disk 15 on the pull rod 2, and supporting the rotating ring 11 by the cover 3, multiple structures can be integrated above the valve cover 4. The overall structure is compact and does not require additional area during installation, making it easy to install and use.

[0045] It should be noted that, in this document, terms such as "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas pipeline valve, comprising a valve body (5), a valve cover (4) fixed to the upper end of the valve body (5), a pull rod (2) vertically passing through the center of the valve cover (4), characterized in that: Also includes: A cover shell (3), wherein the cover shell (3) is fixedly mounted on the upper surface of the valve cover (4); an impact ball (18), the impact ball (18) being movably mounted on the inner side wall of the housing (3), the impact ball (18) being used to strike the housing (3) to emit a warning sound; A rotating disk (15) is rotatably mounted on the upper surface of the valve cover (4) and is located inside the housing (3). An extrusion block (151) is fixedly mounted on the outer circumference of the rotating disk (15). The extrusion block (151) is used to drive the impact ball (18) to strike the housing (3). A rotating ring (11), the rotating ring (11) is sleeved on the outer circumference of the pull rod (2) and is located outside the cover (3), the lower end of the rotating ring (11) is provided with an extension portion (112), the outer circumference of the extension portion (112) is provided with an annular groove (113), the center portion of the cover (3) is provided with a first through hole (31), and the side wall of the first through hole (31) is located in the annular groove (113); A sinking groove (152) is provided on the upper surface of the rotating disk (15), the lower end of the extension portion (112) is located in the sinking groove (152), a spring (16) is provided in the sinking groove (152), one end of the spring (16) is fixed to the side wall of the sinking groove (152), and the other end of the spring (16) is fixed to the extension portion (112); An upper locking structure, the upper locking structure being arranged between the rotating ring (11) and the cover (3), and the upper locking structure being used to limit the unidirectional rotation of the rotating ring (11); A lower locking structure is provided between the rotating disk (15) and the pull rod (2), and is used to lock or unlock the rotating disk (15), so that when the valve is in an open state, the rotating disk (15) is in a locked state, and when the valve is in a closed state, the rotating disk (15) is in an unlocked state.

2. A gas pipeline valve according to claim 1, characterized in that: The diameter of the extension portion (112) is smaller than the diameter of the rotating ring (11), so that a step portion is formed at the intersection of the rotating ring (11) and the extension portion (112); The upper locking structure comprises a receiving groove (111) vertically upwardly opened on the stepped portion, an upper saw gear (13) is provided in the receiving groove (111), a second blocking block (131) is fixedly provided on the upper surface of the upper saw gear (13), a vertical groove (114) is opened on the inner wall of the receiving groove (111), and the second blocking block (131) slides in the vertical groove (114) so ​​that the rotating ring (11) drives the upper saw gear (13) to rotate; A lower saw gear (14) is fixedly provided at the center of the upper surface of the housing (3), and the lower saw gear (14) is engaged with the upper saw gear (13). The lower saw gear (14) is used to make the upper saw gear (13) rotate in one direction. A first spring (12) is provided between the upper surface of the upper saw gear (13) and the top of the accommodating groove (111), and the first spring (12) applies pressure to the upper saw gear (13).

3. A gas pipeline valve according to claim 1, characterized in that: A slip ring (153) is fixedly provided at the bottom of the rotating disk (15), and a sliding groove (41) is provided on the upper surface of the valve body (5), and the slip ring (153) slides in the sliding groove (41); A second through hole (155) is provided at the center of the rotating disk (15), and the lower end of the pull rod (2) passes through the second through hole (155).

4. A gas pipeline valve according to claim 3, characterized in that: The lower locking structure includes a locking groove (154) formed on the inner wall of the second through hole (155); a first locking block (21) is fixedly provided on the outer peripheral surface of the pull rod (2) located at the second through hole (155); the first locking block (21) can be engaged with or disengaged from the locking groove (154) in the vertical direction to lock or unlock the rotating disk (15).

5. The gas pipeline valve according to claim 1, characterized in that: A second spring (17) is fixedly provided on the inner wall of the housing (3), and the axis of the second spring (17) is directed toward the center of the housing (3) and tilted upward; The impact ball (18) is fixed to one end of the second spring (17) close to the center of the cover shell (3).

6. A gas pipeline valve according to claim 5, characterized in that: The upper surface of the extrusion block (151) is higher than the top of the impact ball (18); The lower surface of the extrusion block (151) is configured as an inclined surface, so that when the extrusion block (151) contacts the impact ball (18), the impact ball (18) is extruded downward along the inclined surface.

7. The gas pipeline valve according to claim 1, characterized in that: The pull rod (2) consists of an upper rod and a lower rod, the upper rod and the lower rod are connected via threads, and the connection portion between the upper rod and the lower rod is located inside the valve cover (4).

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