A toggle type gas self-closing valve reset switch

Abstract

A toggle-type gas self-closing valve reset switch disclosed in an embodiment of the present invention includes: a self-closing valve body having a reset toggle structure and a pull rod, wherein the reset toggle structure is used to drive the pull rod to move relative to the self-closing valve body, thereby resetting the self-closing valve body; and a limiter fixed to the self-closing valve body, which is used to limit the range of movement of the reset toggle structure relative to the self-closing valve body. By fixing the limiter to the self-closing valve body, the present application can limit the range of movement of the reset toggle structure when the reset toggle structure is pulled, thereby controlling its travel within a predetermined range, thereby avoiding an overpressure closed state and ensuring gas safety.

Description

Technical Field

[0001] The invention belongs to the technical field of self-closing valves, and in particular relates to a shift-type gas self-closing valve reset switch. Background Art

[0002] Gas has become an indispensable energy source in people's lives and is widely used in communities. For example, gas stoves are used in homes and gas boilers are used for collective heating in residential areas. In order to improve the safety of gas use, self-closing valves need to be installed on gas pipelines.

[0003] At present, existing self-closing valves are usually equipped with self-closing valve pull rods, which are used to manually reset the self-closing valves. However, the existing self-closing valve pull rods usually do not have a limiting function. When the user pulls the self-closing valve, if there is no limiting structure, there is a probability that an overpressure closing state will occur directly, which is an erroneous operation and poses a safety hazard. Summary of the Invention

[0004] The present invention provides a toggle type gas self-closing valve reset switch, which is used to solve the technical problem in the prior art that if there is no limit structure, there is a probability of directly entering an overpressure closing state, which is an erroneous operation and poses a safety hazard.

[0005] To solve the above technical problems, an embodiment of the present invention discloses a toggle-type gas self-closing valve reset switch, comprising:

[0006] A self-closing valve body having a reset shifting structure and a pull rod, wherein the reset shifting structure is used to drive the pull rod to move relative to the self-closing valve body, thereby resetting the self-closing valve body;

[0007] The limiting portion is fixedly connected to the self-closing valve body and is used to limit the range of movement of the reset shift structure relative to the self-closing valve body.

[0008] Optionally, the limiting portion includes:

[0009] An arched structure fixedly connected to the outer side of the self-closing valve body;

[0010] A limiting ring is fixedly connected to the bow structure and is used to limit the range of movement of the reset shift structure relative to the self-closing valve body.

[0011] Optionally, the reset shift structure includes: a first sub-section and a second sub-section;

[0012] The first sub-section is inserted into the interior of the self-closing valve body and is movably connected to the self-closing valve body;

[0013] The second subsection is located outside the self-closing valve and is connected to the first subsection;

[0014] The diameter of the first section is larger than the inner diameter of the limiting ring, the diameter of the second section matches the diameter of the limiting ring, the second section is inserted into the interior of the limiting ring, and can move back and forth relative to the limiting ring.

[0015] Optionally, at least two of the arched structures are included, and the arched structures are evenly distributed along the circumference of the reset shift structure.

[0016] Optionally, the bow-shaped structure and the self-closing valve body are integrally formed.

[0017] Optionally, an adjusting component is configured in the self-closing valve body, and the adjusting component divides the inner cavity of the self-closing valve body into an atmospheric cavity and a valve cavity; the adjusting component is used to move back and forth according to the difference in force between the valve cavity and the atmospheric cavity, thereby opening or closing the self-closing valve body; the reset shift structure is located at one end inside the self-closing valve body and is connected to the adjusting component.

[0018] Optionally, also include:

[0019] The execution component is located in the self-closing valve body, is connected to the regulating assembly, moves along with the regulating assembly, and is used to open or close the self-closing valve body.

[0020] Optionally, the execution component includes:

[0021] a driving member, one end of which is connected to the adjusting assembly;

[0022] The valve mouth member is slidably connected to the self-closing valve body, and the driving member is drivingly connected to the valve mouth member to drive the valve mouth member to move toward or away from the air inlet of the self-closing valve body to open or close the self-closing valve body.

[0023] Optionally, the driving member is a slider having an inclined groove, and the end of the valve mouth member slides in cooperation with the inclined groove. The driving member moves, driving the end of the valve mouth member to slide in the inclined groove, thereby driving the sealing end of the valve mouth member to move toward or away from the air inlet.

[0024] Optionally, the adjustment component includes:

[0025] a membrane disposed in the self-closing valve body, the membrane dividing the inner cavity of the self-closing valve body into an atmospheric cavity and a valve cavity, and the end of the reset shift structure located in the atmospheric cavity being connected to the membrane;

[0026] an upper armature, fixedly connected to the membrane and located below the membrane;

[0027] a lower armature, mounted in the self-closing valve body and located below the upper armature;

[0028] A magnet is connected to the actuator, and the magnet is located between the upper armature and the lower armature, and can move between the upper armature and the lower armature, thereby driving the actuator to open or close the self-closing valve body.

[0029] A toggle-type gas self-closing valve reset switch disclosed in an embodiment of the present invention includes: a self-closing valve body having a reset toggle structure and a pull rod, wherein the reset toggle structure is used to drive the pull rod to move relative to the self-closing valve body, thereby resetting the self-closing valve body; and a limiter fixed to the self-closing valve body, which is used to limit the range of movement of the reset toggle structure relative to the self-closing valve body. In this application, by fixing the limiter to the self-closing valve body, when the reset toggle structure is pulled, the limiter can limit the range of movement of the reset toggle structure, thereby controlling its stroke within a predetermined range, thereby avoiding an overpressure closed state and ensuring gas safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of a toggle-type gas self-closing valve reset switch provided in this embodiment.

[0031] Figure 2 This is a schematic diagram of the initial state of a toggle-type gas self-closing valve reset switch provided in this embodiment.

[0032] Figure 3 This is a schematic diagram of the reset state of a toggle-type gas self-closing valve reset switch provided in this embodiment.

[0033] Figure 4 This is a schematic diagram of the open state of a toggle-type gas self-closing valve reset switch provided in this embodiment.

[0034] Figure 5 This is a schematic diagram of the overpressure state of a toggle-type gas self-closing valve reset switch provided in this embodiment.

[0035] Figure 6 This is a structural diagram of another toggle-type gas self-closing valve reset switch provided in this embodiment.

[0036] Figure 7 This is a schematic diagram of the reset state of another toggle-type gas self-closing valve reset switch provided in this embodiment.

[0037] Figure 8 This is a schematic diagram of the reset state of another toggle-type gas self-closing valve reset switch provided in this embodiment.

[0038] Figure 9 This is a schematic diagram of the overpressure state of another toggle-type gas self-closing valve reset switch provided in this embodiment.

[0039] In the figure, 1. bow structure; 2. limit ring; 3. reset shift structure; 4. small retaining spring; 5. overpressure indicator button; 6. large retaining spring; 7. spring; 8. reset button; 9. pull rod; 10. valve housing; 11. diaphragm; 12. lower armature; 13. upper armature; 14. magnet; 15 self-closing valve body. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] Reference Figure 1 - Figure 5 A toggle-type gas self-closing valve reset switch disclosed in an embodiment of the present invention includes: a self-closing valve body 15 having a reset toggle structure 3 and a pull rod 9, wherein the reset toggle structure 3 is used to drive the pull rod 9 to move relative to the self-closing valve body 15, thereby resetting the self-closing valve body 15; and a limit portion fixed to the self-closing valve body 15, used to limit the range of movement of the reset toggle structure 3 relative to the self-closing valve body 15.

[0043] In this example embodiment, the above-mentioned self-closing valve body 15 is a conventional self-closing valve body 15 in the field, which has a balancing component and an actuator that cooperates with the balancing component. The balancing component can move back and forth according to the force difference between the atmospheric cavity and the valve cavity inside the self-closing valve body 15, thereby driving the actuator to open or close the valve port of the self-closing valve body 15, thereby realizing overpressure protection and underpressure protection of the self-closing valve body 15.

[0044] In this example embodiment, one end of the reset toggle structure 3 passes through the self-closing valve body 15 and extends to the outside of the self-closing valve body 15, cooperating with the limit portion in this application. The limit portion is used to limit the movement range of the end of the reset toggle structure 3 extending to the outside of the self-closing valve body 15. The position of the limit portion can be established according to the actual movement stroke of the adjustment component of the self-closing valve body 15. What needs to be ensured is that the movement stroke generated by manually toggling the reset toggle structure 3 is less than or equal to the range between the initial state position of the self-closing valve body 15 and the open state position. For example, when the balancing component in the self-closing valve body 15 moves upward by more than 5mm from the initial state, the self-closing valve body 15 is in the overpressure closed state; when the balancing component in the self-closing valve body 15 moves upward by between 3mm and 5mm from the initial state, the self-closing valve body 15 is in the open state. At this time, the above-mentioned limit part can be installed according to the above-mentioned 5mm parameter, that is, when the limit part is installed, the reset dial structure 3 can drive the balancing component to move upward by a maximum of 5mm. At this time, the reset dial structure 3 is limited by the limit part and cannot continue to move upward. It can be understood that the above example does not limit the reset dial structure 3 of the present application to only being able to move upward by 5mm, and the above-mentioned numerical value is not the actual preparation parameter of the self-closing valve body 15, but is only an example to illustrate the design concept of the present application.

[0045] In this example embodiment, the structure of the above-mentioned limiting portion can be an integrally formed structure, its outer shape can be adapted to the top wall of the self-closing valve body 15, and connected to the outer top wall of the self-closing valve body 15. A limiting ring 2 can be configured on the above-mentioned limiting portion, and the limiting ring 2 is used to limit the moving stroke of the reset shift structure 3.

[0046] In this example embodiment, a toggle-type gas self-closing valve reset switch disclosed in an embodiment of the present invention includes: a self-closing valve body 15 having a reset toggle structure 3, wherein the reset toggle structure 3 is used to reset the self-closing valve body 15 by moving relative to the self-closing valve body 15; and a limiter fixed to the self-closing valve body 15, which is used to limit the range of movement of the reset toggle structure 3 relative to the self-closing valve body 15. By fixing the limiter to the self-closing valve body 15, the limiter can limit the range of movement of the reset toggle structure 3 when the reset toggle structure 3 is pulled, thereby controlling its travel within a predetermined range, thereby avoiding an overpressure closed state and ensuring gas safety.

[0047] In a specific embodiment, the limiting portion includes: a bow structure 1, fixed to the outside of the self-closing valve body 15; a limiting ring 2, fixed to the bow structure 1, used to limit the range of movement of the reset shift structure 3 relative to the self-closing valve body 15.

[0048] In this example implementation, see Figure 1As shown, the structure of the limiting part can be designed as a bow-shaped structure 1, and the bottom end of the bow-shaped structure 1 is connected to the outer top wall of the self-closing valve body 15. The above connection method can be welding, bonding, etc. This application does not limit the above-mentioned fixing method between the two.

[0049] In this example implementation, Figure 1 As can be seen in the figure, a limit ring 2 is provided at the top of the bow structure 1. This limit ring 2 is used to limit the position of the reset toggle structure 3. In other words, the limit ring 2 is used to block the upper limit of the movement of the reset toggle structure 3. When the limit ring 2 engages the limit reset toggle structure 3, the reset toggle structure 3 does not cause the self-closing valve body 15 to close due to overpressure. The bow structure 1 on the self-closing valve housing 10 can be integrated with the housing. The pull rod 9 is connected to the balance assembly inside the self-closing valve. The internal structure is shown in the figure; the pull rod 9 is provided with the reset toggle structure 3.

[0050] In this example implementation, Figure 1 In the initial state, manually push the reset shift structure 3 upwards. Since the limit ring 2 is provided on the bow structure 1, the manual push can only make the reset shift structure 3 reach the limit ring 2. At this time, the self-closing valve is in the reset state. Figure 2 The status shown.

[0051] In a specific embodiment, the reset shift structure 3 includes: a first division and a second division; the first division is inserted into the interior of the self-closing valve body 15 and is movably connected to the self-closing valve body 15; the second division is located outside the self-closing valve and is connected to the first division; wherein the diameter of the first division is larger than the inner diameter of the limiting ring 2, the diameter of the second division is adapted to the diameter of the limiting ring 2, the second division is inserted into the interior of the limiting ring 2, and can move back and forth relative to the limiting ring 2.

[0052] In this example implementation, see Figure 1 As shown, the bottom of the reset toggle structure 3 is adapted to the outer diameter of the top opening of the self-closing valve body 15, the middle size of the reset toggle structure 3 is smaller than the bottom size of the reset toggle structure 3, the top size of the reset toggle structure 3 is larger than the middle size and smaller than the bottom size, and the inner diameter of the limit ring 2 is adapted to the top of the reset toggle structure 3. During the reset operation, an upward force is applied to the upper edge of the middle of the toggle structure 3 by a finger or a tool. At this time, the limit ring 2 can limit the finger or tool. At the same time, the lower armature inside the body 15 is clamped to the pull rod, and under the joint action of the fluid medium pressure, the balance component is kept in the open state.

[0053] In a specific embodiment, at least two of the arch structures 1 are included, and the arch structures 1 are evenly distributed along the circumference of the reset shift structure 3 .

[0054] In this example implementation, Figure 1 It can also be seen that two arch structures 1 can be configured, and the two arch structures 1 are arranged opposite to each other, and the limit ring 2 is fixed between the two arch structures 1. This arrangement makes it easy for the user to observe the working status of the reset shift structure 3 at any time.

[0055] Of course, the present application is not limited to using only two arch structures 1 , and the technical solution of the present application can also be implemented by setting three or four arch structures 1 .

[0056] In a specific embodiment, the arch structure 1 is integrally formed with the self-closing valve body 15. The use of an integrally formed structure is beneficial to improving the stability of the structure of the present application, thereby extending the service life of the device of the present application.

[0057] See also Figure 6 - Figure 9 As shown, in a specific embodiment, an adjusting component is configured in the self-closing valve body 15, and the adjusting component divides the inner cavity of the self-closing valve body 15 into an atmospheric cavity and a valve cavity; the adjusting component is used to move back and forth with the difference in the force between the valve cavity and the atmospheric cavity, thereby opening or closing the self-closing valve body 15; the reset shift structure 3 is located at one end in the self-closing valve body 15 and is connected to the adjusting component.

[0058] This exemplary embodiment further includes: an actuator located in the self-closing valve body 15 , connected to the regulating assembly, and moves along with the regulating assembly to open or close the self-closing valve body 15 .

[0059] In this example embodiment, the actuator includes: a driving member, one end of which is connected to the regulating assembly; a valve mouth member, which is slidably connected in the self-closing valve body 15, and the driving member drives the valve mouth member to drive the valve mouth member to move toward or away from the air inlet of the self-closing valve body 15 to open or close the self-closing valve body 15.

[0060] In this example embodiment, the driving member is a slider having an inclined groove, and the end of the valve mouth member slides in cooperation with the inclined groove. The driving member moves, driving the end of the valve mouth member to slide in the inclined groove, thereby driving the sealing end of the valve mouth member to move toward or away from the air inlet.

[0061] In this example embodiment, the regulating component includes: a diaphragm 11, which is arranged in the self-closing valve body 15, and the diaphragm 11 divides the inner cavity of the self-closing valve body 15 into an atmospheric cavity and a valve cavity, and the reset shift structure 3 is located in the atmospheric cavity and is connected to the diaphragm 11 at one end; an upper armature 13, which is fixed on the diaphragm 11 and is located below the diaphragm 11; a lower armature 12, which is installed in the self-closing valve body 15 and is located below the upper armature 13; a magnet 14, which is connected to the actuator, and the magnet 14 is located between the upper armature 13 and the lower armature 12, and can move between the upper armature 13 and the lower armature 12, thereby driving the actuator to open or close the self-closing valve body 15.

[0062] In this exemplary embodiment, the membrane 11 Figure 6 When the part 8 is subjected to fluid pressure, the membrane 11 drives the pull rod 9 to continue to move upward, and finally the lower armature 12 Figure 6 The limiting effect of part 9 stops at Figure 4 Position shown.

[0063] In this exemplary embodiment, when the air supply pressure is lower than the set value, the membrane 11 Figure 6 The part 8 moves downward due to the decrease of fluid pressure, and finally returns to Figure 6 The initial state is shown, at this time the self-closing valve automatically closes due to underpressure.

[0064] When the air supply pressure is higher than the set value, the membrane 11 Figure 6 Part 8 is affected by excessive fluid pressure, causing the upper armature 13 Figure 6 Part 10 and magnet 14 Figure 6 The part 11 is separated from the membrane 11 Figure 6 The parts 8 move upward together to form an overpressure closed state, such as Figure 5 Position shown.

[0065] In this exemplary embodiment, the core innovation of the present invention lies in its shift-shift reset mechanism, which does not restrict other self-closing valve mechanisms, such as underpressure or overpressure. The core design utilizes a fixed stop ring 2 to limit the travel of the manual shift. This stop ring 2 can be integrally formed with the self-closing valve housing 10, further simplifying the structure. By simplifying the knob structure, the present invention simplifies the production process, reduces component parts, and lowers costs. Furthermore, it eliminates the need for a small retaining spring 4, improving product quality and stability.

[0066] Example 2

[0067] See also Figure 6 - Figure 9 As shown, the present application also provides a structure with a self-closing valve pull rod 9 limiting function, specifically:

[0068] See also Figure 6 As shown, the button part consists of a reset button 8, an overpressure indicator button 5, a spring 7, a large retaining spring 6 including a lining, and a small retaining spring 4. When the self-closing valve needs to be opened, the reset button 85 needs to be manually pulled up to the position shown in FIG. Figure 7 Status shown: Figure 7 The reset button 8 is linked to the overpressure indicator button 5 to move upward. When the spring 7 is compressed to the minimum length, the reset button 8 is blocked from moving upward and the self-closing valve is in the reset state. When the person releases his hand, the reset button 8 moves downward to the initial state under the action of the spring 7. At the same time, the overpressure indicator button 5 maintains the current position under the action of the air pressure in the self-closing valve cavity. The status of each component is shown in the figure below. At this time, the self-closing valve is in the normal open state. Figure 8 shown.

[0069] When the air supply pressure is lower than the set value, the membrane 11 is driven by the decrease in fluid pressure to move the overpressure indicator button 5 downward and eventually return to the Figure 1 The initial state is shown, at this time the self-closing valve automatically closes due to underpressure.

[0070] When the air supply pressure is higher than the set value, the membrane 11 is affected by the excessive fluid pressure, causing the upper armature 13 to separate from the magnet 14 and move upward together with the membrane 11 to form an overpressure closed state, such as Figure 9 shown.

[0071] In this embodiment, the solution provided includes 6 parts. Compared with the technical solution of Example 1, the button installation process requires a total of 3 processes and 6 parts, which is more expensive.

[0072] During use, the overpressure indicator button 5 is easily misoperated by the user. Figure 8 When the overpressure indicator button 5 is in the open state, the self-closing valve will automatically close, affecting the user experience. At the same time, the small retaining spring 4 is easy to fall off during use, affecting the user experience of the product.

[0073] Compared to Example 1, Example 1 has the following advantages: During the manufacturing process of the self-closing valve, the shift-type reset structure requires six fewer parts and three fewer assembly steps than the original knob structure, thereby improving production efficiency and reducing costs. During the use of the self-closing valve, since the original two knobs are transformed into a single shift switch, the chance of user error is reduced, making it more user-friendly. Since the retaining spring structure is eliminated, the knob falling problem is fundamentally eliminated, improving product stability.

[0074] It should be noted that the embodiments described above are only some of the embodiments of the application, not all of the embodiments. Based on the embodiments in the application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the application. Each embodiment in this specification focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced.

Claims

1. A toggle type gas self-closing valve reset switch, characterized in that: include: A self-closing valve body (15) has a reset shifting structure (3) and a pull rod (9), wherein the reset shifting structure (3) comprises: a first section and a second section; the first section is inserted into the interior of the self-closing valve body (15) and is movably connected to the self-closing valve body (15); the second section is located outside the self-closing valve and is connected to the first section; wherein the diameter of the first section is larger than the inner diameter of the limiting ring (2), the diameter of the second section is adapted to the diameter of the limiting ring (2), the second section is inserted into the interior of the limiting ring (2), and can reciprocate relative to the limiting ring (2); the reset shifting structure (3) is used to reset the self-closing valve body (15) by driving the pull rod (9) to move relative to the self-closing valve body (15); The limiting portion comprises: an arched structure (1) fixedly connected to the outer side of the self-closing valve body (15); the limiting ring (2) fixedly connected to the arched structure (1) and used for limiting the range of movement of the reset shifting structure (3) relative to the self-closing valve body (15); the limiting portion fixedly connected to the self-closing valve body (15) and used for limiting the range of movement of the reset shifting structure (3) relative to the self-closing valve body (15).

2. The toggle type gas self-closing valve reset switch according to claim 1, characterized in that: It comprises at least two arched structures (1), and each of the arched structures (1) is evenly distributed along the circumference of the reset shift structure (3).

3. The toggle type gas self-closing valve reset switch according to claim 1, characterized in that: The bow-shaped structure (1) and the self-closing valve body (15) are integrally formed.

4. The toggle type gas self-closing valve reset switch according to claim 1, characterized in that: The self-closing valve body (15) is provided with an adjusting component, which divides the inner cavity of the self-closing valve body (15) into an atmospheric cavity and a valve cavity; the adjusting component is used to move back and forth according to the difference in the acting force between the valve cavity and the atmospheric cavity, thereby opening or closing the self-closing valve body (15); one end of the reset shift structure (3) located in the self-closing valve body (15) is connected to the adjusting component.

5. The toggle type gas self-closing valve reset switch according to claim 4, characterized in that: Also includes: An actuator is located in the self-closing valve body (15), is connected to the regulating assembly, moves along with the regulating assembly, and is used to open or close the self-closing valve body (15).

6. The toggle type gas self-closing valve reset switch according to claim 5, characterized in that: The execution component includes: a driving member, one end of which is connected to the adjusting assembly; The valve mouth member is slidably connected in the self-closing valve body (15), and the driving member is drivingly connected to the valve mouth member, and is used to drive the valve mouth member to move toward or away from the air inlet of the self-closing valve body (15) to open or close the self-closing valve body (15).

7. The toggle type gas self-closing valve reset switch according to claim 6, characterized in that: The driving member is a slider with an inclined groove, and the end of the valve mouth member slides with the inclined groove. The driving member moves, driving the end of the valve mouth member to slide in the inclined groove, and then drives the sealing end of the valve mouth member to move toward or away from the air inlet.

8. The toggle type gas self-closing valve reset switch according to claim 7, characterized in that: The adjustment component includes: A membrane (11) is provided in the self-closing valve body (15), the membrane (11) divides the inner cavity of the self-closing valve body (15) into an atmospheric cavity and a valve cavity, and one end of the reset shift structure (3) located in the atmospheric cavity is connected to the membrane (11); An upper armature (13) is fixed to the membrane (11) and is located below the membrane (11); A lower armature (12) is installed in the self-closing valve body (15) and is located below the upper armature (13); A magnet (14) is connected to the actuator. The magnet (14) is located between the upper armature (13) and the lower armature (12) and can move between the upper armature (13) and the lower armature (12), thereby driving the actuator to open or close the self-closing valve body (15).

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