Gas valve with damper switch

Abstract

A gas valve with a damping switch, comprising: a valve body and a valve rod, the valve body is internally provided with a mounting position, and the valve rod is rotationally arranged on the valve body; a damping switch is arranged inside the valve body and located at the mounting position; the damping switch comprises a shell, a positioning member and an elastic assembly abutting against the positioning member, the positioning member is provided with a plurality of positioning grooves arranged at intervals in the rotation direction of the valve rod, the valve rod is connected with one of the positioning member and the elastic assembly and rotates synchronously, so that the positioning member and the elastic assembly relatively rotate when the valve rod rotates, and the elastic assembly abuts and enters the positioning groove when the elastic assembly is opposite to the positioning groove. The utility model discloses a gas valve, which sets the mounting position in the valve body, sets the damping switch in the valve body and at the mounting position, and further hides the damping switch in the valve body, so that the overall volume of the gas valve can be reduced, the installation space required by the gas valve can be reduced, the installation of the gas valve is facilitated, and the gas valve is more beautiful.

Description

Technical Field

[0001] This utility model relates to the field of gas valve technology, and in particular to a gas valve with a damping switch. Background Technology

[0002] Chinese Patent Document No. CN212318947U, published on January 8, 2021, discloses a damping switch, a plug valve, and a gas appliance. The plug valve includes a housing with a through-hole extending through its thickness. The housing also has a mounting portion for fixing the damping switch to the outside of the plug valve. A rotating member is housed within the housing and rotatable relative to it. The rotating member has a shaft hole corresponding to and communicating with the through-hole, through which a valve stem passes. Both the rotating member and the housing have multiple positioning grooves spaced apart in the rotation direction of the valve stem, and the other has an elastic abutment component. During the rotation of the rotating member driven by the valve stem, the elastic abutment component engages with one of the positioning grooves. The damping switch of this plug valve (gas valve) is mounted outside the valve body, resulting in a large overall size and requiring significant installation space, making installation inconvenient and aesthetically unappealing.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a gas valve with a damping switch that is simple in structure, small in size, easy to install, aesthetically pleasing, and highly practical, so as to overcome the shortcomings of the prior art.

[0005] A gas valve with a damping switch designed for this purpose is characterized by comprising:

[0006] The valve body and valve stem are provided, wherein the valve body has an internal mounting position and the valve stem is rotatably mounted on the valve body;

[0007] A damping switch, wherein the damping switch is disposed inside the valve body and located in the mounting position;

[0008] The damping switch includes a housing, a positioning element, and an elastic component that abuts against the positioning element. The positioning element has several positioning grooves arranged at intervals along the rotation direction of the valve stem. The valve stem is connected to one of the positioning element and the elastic component and rotates synchronously, so that the positioning element and the elastic component rotate relative to each other when the valve stem rotates. When the elastic component is opposite to the positioning groove, the elastic component presses into the positioning groove.

[0009] The valve stem is provided with a first limiting plate and a second spring. The damping switch, the second spring, and the first limiting plate are arranged in sequence along the valve stem axis. The second spring presses against the damping switch, so that the damping switch is positioned between the inner wall of the valve body and the second spring.

[0010] The positioning element is mounted on the valve stem and is rotatably disposed inside the housing. The valve stem passes through the positioning element and rotates synchronously.

[0011] The elastic component includes a first spring and a retaining member. One end of the first spring abuts against the housing and the other end abuts against the retaining member. When the valve stem drives the positioning member to rotate, the retaining member abuts against the positioning member under the elastic force of the first spring. When the elastic component is opposite to the positioning groove, the retaining member is pressed into the positioning groove.

[0012] The housing has an outwardly extending extension, a receiving groove inside the extension, a rotating groove inside the housing, the receiving groove and the rotating groove are connected, a first spring is disposed in the receiving groove, a positioning member is rotatably disposed in the rotating groove, and a supporting member is located between the receiving groove and the rotating groove.

[0013] The mounting position is a mounting groove, and the damping switch is positioned and installed in the mounting groove. The top of the mounting groove is closed, and an extension groove extending outward is provided on one side of the mounting groove. The extension part is located in the extension groove, and the bottom of the extension groove is open.

[0014] The valve stem is non-circular in shape, and the positioning element has a non-circular shaft hole. The valve stem is installed through the shaft hole so that the valve stem can drive the positioning element to rotate.

[0015] The housing includes a base and a cover. The cover fits over the top of the base. A positioning ring is provided on the cover. A positioning post is provided on the positioning component. The positioning post is inserted into the inner hole of the positioning ring. The top of the mounting groove is provided with an upwardly recessed positioning groove. The positioning ring is inserted into the positioning groove.

[0016] The valve body includes a valve seat, a valve cover, and a gasket. The gasket is located between the valve seat and the valve cover. The mounting position is located inside the valve cover. The valve core is located inside the valve seat and is mounted on the valve stem. The valve stem is mounted on the valve body and moves up and down. When the valve stem rotates, it drives the valve core to rotate on the valve seat.

[0017] The upper end of the second spring abuts against the damping switch, and the lower end of the second spring abuts against the first limiting plate. The valve stem is provided with a stepped part, and the first limiting plate is supported on the stepped part.

[0018] A pulse element is installed inside the valve cover. The bottom of the pulse element is supported on a pad. When the valve stem moves downward, the first limiting plate moves downward under the elastic force of the second spring. When the first limiting plate moves downward to the corresponding position, it acts on the pulse element.

[0019] This utility model's gas valve features an installation position inside the valve body, with a damping switch also located within the valve body and positioned at the installation position. This conceals the damping switch within the valve body, reducing the overall size of the gas valve and the required installation space, thus facilitating installation and enhancing its aesthetics. Furthermore, when the valve stem rotates to a specific angle, the elastic component presses against the positioning groove, providing tactile feedback and angle retention to prevent misoperation. Simultaneously, it enables multi-position adjustment of the gas valve, with each position corresponding to a positioning groove, improving operational accuracy. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the gas valve in one embodiment of the present invention.

[0021] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0022] Figure 3 This is a schematic diagram of the overall structure of the gas valve in one embodiment of the present invention.

[0023] Figure 4 This is a partial structural schematic diagram of the damping switch in one embodiment of the present invention.

[0024] Figure 5 This is an exploded view of the valve cover and damping switch in one embodiment of the present invention.

[0025] Figure 6 This is an exploded view of the damping switch in one embodiment of the present invention.

[0026] Figure 7 This is an exploded view of the gas valve in one embodiment of the present invention.

[0027] Figure 8 This is a partial structural diagram of the gas valve in one embodiment of the present invention. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] See Figures 1-8 This gas valve with damping switch includes:

[0030] Valve body 1 and valve stem 2, with an installation position inside the valve body 1 and the valve stem 2 rotatably mounted on the valve body 1;

[0031] Damping switch 3 is installed inside valve body 1 and in the mounting position;

[0032] The damping switch 3 includes a housing 4, a positioning element 5, and an elastic component that abuts against the positioning element 5. The positioning element 5 is provided with a number of positioning grooves 8 arranged at intervals along the rotation direction of the valve stem 2. The valve stem 2 is connected to one of the positioning element 5 and the elastic component and rotates synchronously. When the valve stem 2 rotates, the positioning element 5 and the elastic component rotate relative to each other. The elastic component abuts against the positioning element 5, causing friction between them, which in turn generates a damping force to prevent rapid rotation. When the elastic component is opposite to the positioning groove 8, the elastic component is pressed into the positioning groove 8, so that the gas valve can achieve precise adjustment of the firepower at multiple levels.

[0033] A first limiting plate 20 and a second spring 21 are fitted on the valve stem 2. The damping switch 3, the second spring 21, and the first limiting plate 20 are arranged sequentially along the axial direction of the valve stem 2. The second spring 21 presses against the damping switch 3, so that the damping switch 3 is positioned between the inner wall of the valve body 1 and the second spring 21.

[0034] In this embodiment, the positioning element 5 is assembled on the valve stem 2, and the positioning element 5 is rotatably disposed inside the housing 4. The valve stem 2 passes through the positioning element 5 and rotates synchronously.

[0035] The elastic component includes a first spring 6 and a retaining member 7. One end of the first spring 6 abuts against the housing 4, and the other end abuts against the retaining member 7. The retaining member 7 is pressed between the first spring 6 and the positioning member 5. The retaining member 7 is a ball bearing. When the valve stem 2 drives the positioning member 5 to rotate, the retaining member 7 abuts against the positioning member 5 under the elastic force of the first spring 6. When the elastic component is opposite to the positioning groove 8, the retaining member 7 is pressed into the positioning groove 8 and produces a prompt sound. That is, the retaining member 7 hits the groove wall of the positioning groove 8 and produces a prompt sound. The prompt sound indicates whether the firepower has been effectively adjusted. Each positioning groove 8 corresponds to a gear.

[0036] The housing 4 is provided with an outwardly extending extension 9, and a receiving groove 10 is provided inside the extension 9. The housing 4 is provided with a rotating groove 11, and the receiving groove 10 and the rotating groove 11 are connected. The first spring 6 is provided in the receiving groove 10, the positioning member 5 is rotatably provided in the rotating groove 11, and the abutment member 7 is located between the receiving groove 10 and the rotating groove 11. The first spring 6 is limited by the receiving groove 10, which can ensure the stability of the structure.

[0037] The mounting position is the mounting groove 12. The damping switch 3 is positioned and installed in the mounting groove 12. The top of the mounting groove 12 is closed, so that the damping switch 3 is hidden inside the valve body 1. An extension groove 13 extending outward is provided on one side of the mounting groove 12. The extension part 9 is provided in the extension groove 13. The bottom of the extension groove 13 is open, so that the damping switch 3 has space to float downward.

[0038] The valve stem 2 is non-circular in shape, and the positioning member 5 is provided with a non-circular shaft hole 14. The valve stem 2 is installed through the shaft hole 14 so that the valve stem 2 can drive the positioning member 5 to rotate. The valve stem 2 is connected to a knob. When the knob is turned, the knob drives the valve stem 2 to rotate.

[0039] The housing 4 includes a base 15 and a cover 16. The cover 16 covers the top of the base 15. A positioning ring 17 is provided on the cover 16. A positioning post 18 is provided on the positioning member 5. The positioning post 18 is inserted into the inner hole of the positioning ring 17 to position the positioning member 5 and prevent it from shifting when rotating. The top of the mounting groove 12 is provided with an upwardly recessed positioning groove 19. The positioning ring 17 is inserted into the positioning groove 19 to position the damping switch 3 and prevent the damping switch 3 from becoming loose.

[0040] The positioning element 5 has a positioning edge 31 on its outer periphery, and the rotating groove 11 has a downwardly recessed limiting groove 32 around its periphery. The positioning edge 31 is inserted into the limiting groove 32, which can further position the positioning element 5.

[0041] The upper end of the second spring 21 abuts against the damping switch 3 (i.e., the base 15), and the lower end of the second spring 21 abuts against the first limiting plate 20. The valve stem 2 is provided with a step portion 22, and the first limiting plate 20 is supported on the step portion 22. The second spring 21 can support the damping switch 3 to prevent the damping switch 3 from moving downward when the valve stem 2 moves downward.

[0042] Valve body 1 includes valve seat 23, valve cover 24, and pad 25. Pad 25 is disposed between valve seat 23 and valve cover 24. Valve seat 23, valve cover 24, and pad 25 are connected together by screws. The mounting position is located inside valve cover 24. Damping switch 3 is disposed in the space formed by valve seat 23 and pad 25. Valve core 26 is disposed inside valve seat 23. Valve core 26 is mounted on valve stem 2. Valve stem 2 is movably mounted on valve body 1. When valve 2 rotates, it drives valve core 26 to rotate on valve seat 23. A guide rod 27 that can move up and down is disposed on valve core 26. The upper end of guide rod 27 is connected to valve stem 2. The valve core 26 is equipped with a second limiting plate 28 and a third spring 29. The upper end of the third spring 29 abuts against the guide rod 27, and the lower end of the third spring 29 abuts against the second limiting plate 28. When the valve stem 2 moves downward, it drives the guide rod 27 to move downward and compresses the third spring 29. Under the elastic force of the third spring 29, the guide rod 27 drives the valve stem 2 to move upward and reset. When the gas valve is opened, the valve stem 2 is pressed down by the knob, and then the knob is turned, which drives the valve core 26 to rotate through the valve stem 2. When the knob is released, the third spring 29 acts on the guide rod 27 to reset the valve stem 2 upward.

[0043] A retaining strip 33 is provided on the valve stem 2, and a retaining groove 34 is provided on the valve core 26. When the valve stem 2 is pressed down by the knob, the retaining strip 33 is engaged in the retaining groove 34, thereby enabling the valve stem 2 to drive the valve core 26 to rotate. When the valve stem 2 is reset upward, the retaining strip 33 is disengaged from the retaining groove 34. When the valve core 26 rotates, it controls the flow rate of gas from the gas valve, thereby achieving firepower adjustment. For the specific principle, please refer to patent CN212318947U.

[0044] A pulse element 30 is provided inside the valve cover 24. The bottom of the pulse element 30 is supported on the pad 25. When the valve stem 2 moves downward, the first limiting plate 20 moves downward under the elastic force of the second spring 21. When the first limiting plate 20 moves downward to the corresponding position, it acts on the pulse element 30, thereby connecting the circuit. The first limiting plate 20 is a copper plate, and the pulse element 30 is a pulse plate. The copper plate and the pulse plate form a pulse switch. When the copper plate contacts the pulse plate, the pulse switch is turned on, thereby connecting the circuit. When the copper plate separates from the pulse plate, the pulse switch is turned off, thereby disconnecting the circuit. When the guide rod 27 drives the valve stem 2 to move upward under the elastic force of the third spring 29, the valve stem 2 drives the first limiting plate 20 to move upward, thereby compressing the second spring 21.

[0045] A solenoid valve 35 is provided on one side of the valve body 1. An air intake passage 36 and a gas passage 37 are provided on the valve seat 23. An actuating rod 38 is provided at the bottom of the valve seat 23. When the guide rod 27 moves downward, it acts on the actuating rod 38, causing the actuating rod 38 to rotate and act on the solenoid valve 35, thereby opening the solenoid valve 35 and connecting the air intake passage 36 and the gas passage 37 to allow air to pass through. When the guide rod 27 moves upward, the actuating rod 38 elastically returns to its original position, thereby disengaging the solenoid valve 35 and disconnecting the air intake passage 36 and the gas passage 37. The above structure is prior art and will not be described in detail here.

[0046] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas valve with a damping switch, characterized in that: include: The valve body (1) and valve stem (2) are provided inside the valve body (1), and the valve stem (2) is rotatably mounted on the valve body (1). Damping switch (3), the damping switch (3) is disposed inside the valve body (1) and located in the mounting position; The damping switch (3) includes a housing (4), a positioning element (5), and an elastic component that abuts against the positioning element (5). The positioning element (5) is provided with a number of positioning grooves (8) arranged at intervals along the rotation direction of the valve stem (2). The valve stem (2) is connected to one of the positioning element (5) and the elastic component and rotates synchronously, so that the positioning element (5) and the elastic component rotate relative to each other when the valve stem (2) rotates. When the elastic component is opposite to the positioning groove (8), the elastic component presses into the positioning groove (8).

2. The gas valve with damping switch according to claim 1, characterized in that: The valve stem (2) is provided with a first limiting plate (20) and a second spring (21). The damping switch (3), the second spring (21) and the first limiting plate (20) are arranged in sequence along the axial direction of the valve stem (2). The second spring (21) presses against the damping switch (3) so that the damping switch (3) is positioned between the inner wall of the valve body (1) and the second spring (21).

3. The gas valve with damping switch according to claim 2, characterized in that: The positioning element (5) is mounted on the valve stem (2), and the positioning element (5) is rotatably disposed inside the housing (4). The valve stem (2) passes through the positioning element (5) and rotates synchronously.

4. The gas valve with damping switch according to claim 3, characterized in that: The elastic component includes a first spring (6) and a retaining member (7). One end of the first spring (6) abuts against the housing (4) and the other end abuts against the retaining member (7). When the valve stem (2) drives the positioning member (5) to rotate, the retaining member (7) abuts against the positioning member (5) under the elastic force of the first spring (6). When the elastic component is opposite to the positioning groove (8), the retaining member (7) presses into the positioning groove (8).

5. The gas valve with damping switch according to claim 4, characterized in that: The housing (4) is provided with an outwardly extending extension (9), and a receiving groove (10) is provided inside the extension (9). A rotating groove (11) is provided inside the housing (4). The receiving groove (10) and the rotating groove (11) are connected. A first spring (6) is provided inside the receiving groove (10). A positioning member (5) is rotatably provided inside the rotating groove (11). A supporting member (7) is located between the receiving groove (10) and the rotating groove (11).

6. The gas valve with damping switch according to claim 5, characterized in that: The mounting position is a mounting slot (12). The damping switch (3) is positioned and installed in the mounting slot (12). The top of the mounting slot (12) is closed. An extension slot (13) is provided on one side of the mounting slot (12). The extension part (9) is provided in the extension slot (13). The bottom of the extension slot (13) is open.

7. The gas valve with damping switch according to claim 3, characterized in that: The valve stem (2) is non-circular in shape, and the positioning member (5) is provided with a non-circular shaft hole (14). The valve stem (2) is installed through the shaft hole (14) so ​​that the valve stem (2) can drive the positioning member (5) to rotate.

8. The gas valve with damping switch according to claim 6, characterized in that: The housing (4) includes a base (15) and a cover (16). The cover (16) covers the top of the base (15). A positioning ring (17) is provided on the cover (16). A positioning post (18) is provided on the positioning component (5). The positioning post (18) is inserted into the inner hole of the positioning ring (17). The top of the mounting groove (12) is provided with an upwardly recessed positioning groove (19). The positioning ring (17) is inserted into the positioning groove (19).

9. The gas valve with damping switch according to claim 8, characterized in that: The valve body (1) includes a valve seat (23), a valve cover (24) and a pad (25). The pad (25) is located between the valve seat (23) and the valve cover (24). The mounting position is located inside the valve cover (24). A valve core (26) is located inside the valve seat (23). The valve core (26) is mounted on the valve stem (2). The valve stem (2) is mounted on the valve body (1) and moves up and down. When the valve stem (2) rotates, it drives the valve core (26) to rotate on the valve seat (23).

10. The gas valve with damping switch according to claim 9, characterized in that: The upper end of the second spring (21) abuts against the damping switch (3), and the lower end of the second spring (21) abuts against the first limiting plate (20). A step (22) is provided on the valve stem (2), and the first limiting plate (20) is supported on the step (22). A pulse element (30) is provided inside the valve cover (24). The bottom of the pulse element (30) is supported on the pad (25). When the valve stem (2) moves downward, the first limiting plate (20) moves downward under the elastic force of the second spring (21). When the first limiting plate (20) moves downward to the corresponding position, it acts on the pulse element (30).

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