Motor valve and gas stove

Abstract

The invention discloses a motor valve and a gas stove. The motor valve comprises a valve seat, and the valve seat comprises a valve seat body, a valve cavity formed in the valve seat body and provided with a backward opening, a first air inlet communicated with the valve cavity and a first air outlet communicated with the valve cavity; the valve element is installed in the valve cavity, the valve element comprises a valve element body, a second air outlet hole and a plurality of second air inlet holes with different hole diameters are formed in the valve element body, the second air inlet holes correspond to the first air inlet holes, and the second air outlet holes communicate with the first air outlet holes; the front end of the transmission part is connected with the rear end of the valve element body; the driving motor is installed at the rear end of the valve seat, the output end of the driving motor is in transmission connection with the rear end of the transmission part, and the driving motor can drive the valve element to rotate in the valve cavity through the transmission part so as to selectively communicate with the first air inlet hole and any second air inlet hole.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to an electric valve and a gas stove. Background Technology

[0002] Existing gas stoves use a motor to drive the valve core, thereby regulating the gas flow. However, after prolonged use, the motor is prone to displacement. This displacement can cause the motor to deflect the valve core, potentially leading to valve core jamming.

[0003] Therefore, there is an urgent need for a motor valve to solve the above problems. Summary of the Invention

[0004] This invention aims to at least partially solve one of the problems existing in the prior art. To this end, this invention proposes an electric motor valve. By setting a transmission component between the drive motor and the valve core, the axial force directly applied by the drive motor to the valve core is reduced, achieving a buffering effect between the drive motor and the valve core. Simultaneously, it can also partially solve the problem of mismatch between the drive motor and the valve core caused by displacement between the drive motor and the valve seat during long-term operation, leading to valve core jamming within the valve cavity. This improves the accuracy of the concentric movement of the drive motor and the valve core, ensuring the reliability and stability of the electric motor valve's operation. Furthermore, by mounting the drive motor at the rear end of the valve seat body, the distance between the drive motor and the gas stove burner is increased, allowing the drive motor to be kept away from the high-heat burner, thus protecting the drive motor.

[0005] The above objectives are achieved through the following technical solutions:

[0006] An electric motor valve, comprising:

[0007] The valve seat includes a valve seat body, a valve cavity formed on the valve seat body with its opening facing rearward, a first air inlet communicating with the valve cavity, and a first air outlet communicating with the valve cavity;

[0008] A valve core is installed in the valve cavity. The valve core includes a valve core body. The valve core body has a second air outlet and multiple second air inlets of different diameters. The second air inlets are corresponding to the first air inlets, and the second air outlet is connected to the first air outlet.

[0009] A transmission component, the front end of which is connected to the rear end of the valve core body;

[0010] A drive motor is installed at the rear end of the valve seat. The output end of the drive motor is connected to the rear end of the transmission component. The drive motor can drive the valve core to rotate in the valve cavity through the transmission component, so as to selectively connect the first air inlet and any of the second air inlets.

[0011] Optionally, the output end of the drive motor is provided with a transmission shaft arranged along the axial direction of the valve core body and a transmission rod arranged radially along the valve core body. The transmission rod is connected to the transmission shaft. The transmission component includes a transmission component body and a first mounting groove corresponding to the transmission rod, which is opened at the rear end of the transmission component body. The first mounting groove is opened along the axial direction of the valve core body, and the transmission rod is inserted into the first mounting groove.

[0012] Optionally, it also includes a buffer elastic element disposed between the rear end of the valve core body and the front end of the transmission element, the buffer elastic element being capable of applying a rearward elastic force to the transmission element.

[0013] Optionally, it also includes a micro switch, which is installed on one side of the transmission rod and is triggered when the transmission rod starts to rotate.

[0014] Optionally, a second mounting groove is provided at the rear end of the valve core body, and a protrusion corresponding to the second mounting groove is provided at the front end of the transmission component body. The second mounting groove is opened along the axial direction of the valve core body, and the front end of the transmission component body is inserted into the valve core body, and the protrusion is inserted into the second mounting groove.

[0015] Optionally, it also includes a connecting component, through which the drive motor is mounted at the rear end of the valve seat body.

[0016] Optionally, the drive motor includes a motor housing and a motor body disposed within the motor housing. A connecting lug is provided at the front end of the motor housing. The connecting lug is provided with one of a limiting hole and a limiting block. Both the limiting hole and the limiting block are arranged along the axial direction of the valve core. A first connecting hole is provided at the rear end of the valve seat body. The connecting assembly includes:

[0017] The first connector includes a first connector body, a first clearance hole formed on the first connector body and corresponding to the valve cavity, and a second connection hole formed on the first connector body and corresponding to the first connection hole;

[0018] The second connector includes a second connector body and a third connecting hole formed on the second connector body and corresponding to the second connecting hole. The second connector body is provided with the other of the limiting hole and the limiting block, and the limiting block is inserted into the limiting hole.

[0019] The third connector includes a third connector body and a fourth connector hole formed on the third connector body and corresponding to the third connector hole, and the connector lug is located between the second connector body and the third connector body;

[0020] The connecting screw passes through the fourth connecting hole, the third connecting hole, the second connecting hole and the first connecting hole in sequence to fix the motor housing, the third connecting piece, the second connecting piece, the first connecting piece and the valve seat body.

[0021] Optionally, at least one of the first connector body, the second connector body, and the third connector body is provided with a first limiting portion extending rearward along the axial direction of the valve core on its lower side, and at least one of the first connector body, the second connector body, and the third connector body is provided with a second limiting portion extending rearward along the axial direction of the valve core on its upper side. The upper side of the first limiting portion abuts against the lower side of the motor housing, and the lower side of the second limiting portion abuts against the upper side of the motor housing.

[0022] Optionally, the first connector body has a flange extending rearward along the axial direction of the valve core on its periphery, the lower side of the flange forms the first limiting portion, the second connector body and the third connector body are both disposed within the flange, and the second limiting portion is disposed on the upper side of the third connector body.

[0023] Optionally, the rear end of the valve seat body is provided with a first sealing plane extending in a vertical direction, and the front side of the first connector body is provided with a second sealing plane corresponding to the first sealing plane and extending in a vertical direction, wherein the first sealing plane and the second sealing plane are in contact and abut against each other.

[0024] Optionally, the multiple second air inlets with different diameters include a stir-fry channel and multiple gear channels, with the multiple gear channels and the stir-fry channel arranged sequentially in a clockwise direction.

[0025] Optionally, the diameter of the multiple gear positions gradually increases in a clockwise direction.

[0026] Another aspect of the present invention provides a gas stove, including the aforementioned motor valve.

[0027] Compared with the prior art, the present invention has at least the following beneficial effects:

[0028] The electric valve provided by this invention reduces the axial force directly applied to the valve core by the drive motor by incorporating a transmission component between the drive motor and the valve core. This provides a buffering effect between the drive motor and the valve core. It also addresses the problem of valve core jamming due to misalignment between the drive motor and valve core caused by displacement between the drive motor and valve seat during prolonged operation. This improves the accuracy of the concentric movement of the drive motor and valve core, ensuring the reliability and stability of the electric valve's operation. Furthermore, by mounting the drive motor at the rear end of the valve seat body, the distance between the drive motor and the gas stove burner is increased, protecting the drive motor from the high heat of the burner. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the motor valve provided in a specific embodiment of the present invention;

[0030] Figure 2 yes Figure 1 Exploded view;

[0031] Figure 3 yes Figure 1 Top view;

[0032] Figure 4 yes Figure 3 Sectional view at point AA;

[0033] Figure 5 yes Figure 1 A three-dimensional structural diagram after the first connector has been removed.

[0034] Figure 6 This is a bottom view of the motor valve provided in a specific embodiment of the present invention (when the motor valve is open to the eighth position);

[0035] Figure 7 yes Figure 6 Sectional view at point BB;

[0036] Figure 8 This is a bottom view of the motor valve provided in a specific embodiment of the present invention (when the motor valve is in the stir-fry mode);

[0037] Figure 9 yes Figure 8 Sectional view at point CC.

[0038] In the picture:

[0039] 1. Valve seat; 11. Valve seat body; 12. Valve cavity; 13. First air inlet; 14. First air outlet; 15. First sealing surface; 16. First connecting hole;

[0040] 2. Valve core; 21. Valve core body; 22. Second mounting groove; 23. Second air outlet; N. Gear position channel; M. Stir-fry channel;

[0041] 3. Drive motor; 30. Drive shaft; 31. Motor housing; 32. Connecting lug; 321. Limiting hole; 33. Drive rod;

[0042] 41. First connector; 411. First connector body; 412. First clearance hole; 413. Second connecting hole; 414. First limiting part; 415. Second sealing plane; 42. Second connector; 421. Second connector body; 422. Second clearance hole; 423. Third connecting hole; 424. Limiting block; 43. Third connector; 431. Third connector body; 432. Fourth connecting hole; 433. Second limiting part;

[0043] 5. Micro switch;

[0044] 6. Connecting screws;

[0045] 7. Transmission component; 71. Transmission component body; 72. Protrusion; 73. First mounting groove;

[0046] 8. Buffer elastic element. Detailed Implementation

[0047] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific embodiments of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solutions claimed in the present invention.

[0048] Please refer to Figures 1-9 This invention provides an electric motor valve, comprising a valve seat 1, a valve core 2, a transmission component 7, and a drive motor 3. The valve seat 1 includes a valve seat body 11, a valve cavity 12 opened on the valve seat body 11 with its opening facing rearward, a first air inlet 13 communicating with the valve cavity 12, and a first air outlet 14 communicating with the valve cavity 12. The valve core 2 is installed within the valve cavity 12. The valve core 2 includes a valve core body 21, on which a second air outlet 23 and multiple second air inlets of different diameters are provided. The second air inlets correspond to the first air inlet 13, and the second air outlets 23 communicate with the first air outlets 14. The front end of the transmission component 7 is connected to the rear end of the valve core body 21. The drive motor 3 is installed at the rear end of the valve seat 1. The output end of the drive motor 3 is connected to the rear end of the transmission component 7. The drive motor 3 can drive the valve core 2 to rotate in the valve cavity 12 through the transmission component 7, so as to selectively connect the first air inlet 13 and any second air inlet, thereby controlling the flow of gas with different flow rates and realizing the control of gas flow rate.

[0049] The electric valve provided by this invention reduces the axial force exerted directly on the valve core 2 by the drive motor 3 by setting a transmission component 7 between the drive motor 3 and the valve core 2, thus achieving a buffering effect between the drive motor 3 and the valve core 2. It also addresses the problem of the valve core 2 becoming stuck in the valve cavity 12 due to misalignment between the drive motor 3 and the valve seat 1 caused by displacement of the drive motor 3 during prolonged operation. In other words, the transmission component 7 compensates for the displacement of the drive motor 3, improves the accuracy of the concentric movement of the drive motor 3 and the valve core 2, and ensures the reliability and stability of the electric valve's operation. Furthermore, by mounting the drive motor 3 at the rear end of the valve seat body 11, the distance between the drive motor 3 and the gas stove burner is increased, allowing the drive motor to be kept away from the high-heat burner and protecting it.

[0050] Optionally, the output end of the drive motor 3 is provided with a transmission shaft 30 arranged along the axial direction of the valve core body 21 and a transmission rod 33 arranged along the radial direction of the valve core body 21. The transmission rod 33 is connected to the transmission shaft 30. The transmission component 7 includes a transmission component body 71 and a first mounting groove 73 corresponding to the transmission rod 33, which is opened at the rear end of the transmission component body 71. The first mounting groove 73 is opened along the axial direction of the valve core body 21. The transmission rod 33 is inserted into the first mounting groove 73. When the transmission shaft 30 rotates, it drives the transmission rod 33 to rotate, which in turn drives the transmission component 7 to rotate, and the transmission component 7 then drives the valve core 2 to rotate.

[0051] Optionally, a buffer elastic element 8 is also included. The buffer elastic element 8 is disposed between the rear end of the valve core body 21 and the front end of the transmission element 7. The buffer elastic element 8 can apply a rearward elastic force to the transmission element 7. The buffer elastic element 8 ensures that when the drive motor 3 undergoes a certain displacement in the front-rear direction, the transmission rod 33 remains in the first mounting groove 73, thereby guaranteeing the stability of the transmission between the transmission rod 33 and the transmission element 7.

[0052] Optionally, a micro switch 5 is also included. The micro switch 5 is installed on one side of the transmission rod 33. When the transmission rod 33 starts to rotate, the micro switch 5 is triggered. Specifically, when the motor valve is in the closed state, the transmission rod 33 presses against the spring of the micro switch 5. When the motor valve starts, the transmission rod 33 rotates and moves away from the spring, triggering the micro switch 5, which in turn causes the gas stove to receive a signal and start ignition.

[0053] Optionally, a second mounting groove 22 is provided at the rear end of the valve core body 21, and a protrusion 72 corresponding to the second mounting groove 22 is provided at the front end of the transmission component body 71. The second mounting groove 22 is opened along the axial direction of the valve core body 21, and the front end of the transmission component body 71 is inserted into the valve core body 21, and the protrusion 72 is inserted into the second mounting groove 22, thereby realizing the stable installation of the valve core body 21 and the transmission component body 71, and the structure is simple and compact.

[0054] Optionally, a connecting component is also included, wherein the drive motor 3 is mounted at the rear end of the valve seat body 11 through the connecting component, thereby ensuring the installation stability of the drive motor 3 on the valve seat body 11.

[0055] Optionally, the drive motor 3 includes a motor housing 31 and a motor body disposed within the motor housing 31. A connecting lug 32 is provided at the front end of the motor housing 31. The connecting lug 32 is provided with one of a limiting hole 321 and a limiting block 424. Both the limiting hole 321 and the limiting block 424 are arranged along the axial direction of the valve core 2. A first connecting hole 16 is provided at the rear end of the valve seat body 11. The connecting assembly includes a first connecting member 41, a second connecting member 42, and a third connecting member 43. The first connecting member 41 includes a first connecting member body 411, a first clearance hole 412 formed on the first connecting member body 411 and corresponding to the valve cavity 12, and a second connecting hole 413 formed on the first connecting member body 411 and corresponding to the first connecting hole 16. The second connector 42 includes a second connector body 421 and a third connector hole 423 formed on the second connector body 421 and corresponding to the second connector hole 413. The second connector body 421 is provided with either a limiting hole 321 or a limiting block 424. The limiting block 424 is inserted into the limiting hole 321, thereby achieving vertical positioning and limiting of the connecting lug 32. The third connector 43 includes a third connector body 431 and a fourth connector hole 432 formed on the third connector body 431 and corresponding to the third connector hole 423. The connecting lug 32 is located between the second connector body 421 and the third connector body 431, thereby achieving horizontal limiting of the connecting lug 32. The connecting screw 6 passes sequentially through the fourth connector hole 432, the third connector hole 423, the second connector hole 413, and the first connector hole 16 to fix the motor housing 31, the third connector 43, the second connector 42, the first connector 41, and the valve seat body 11. The drive shaft 30 of the drive motor 3 extends from the front side of the first connector body 411 via the first clearance hole 412 and is connected to the drive rod 33.

[0056] Optionally, at least one of the first connecting body 411, the second connecting body 421, and the third connecting body 431 has a first limiting portion 414 extending rearward along the axial direction of the valve core 2 on its lower side, and at least one of the first connecting body 411, the second connecting body 421, and the third connecting body 431 has a second limiting portion 433 extending rearward along the axial direction of the valve core 2 on its upper side. The upper side of the first limiting portion 414 abuts against the lower side of the motor housing 31, and the lower side of the second limiting portion 433 abuts against the upper side of the motor housing 31. By providing the first limiting portion 414 and the second limiting portion 433, the motor housing 31 is limited in the vertical direction, ensuring the installation stability of the motor housing 31 in the vertical direction. This allows the drive motor 3 to remain in its initial installation position even after long-term use, ensuring the concentricity between the drive motor 3 and the valve core 2.

[0057] Optionally, the first connecting body 411 has a flange extending rearward along the axial direction of the valve core 2 on its periphery. A first limiting portion 414 is formed on the lower side of the flange. The second connecting body 421 and the third connecting body 431 are both disposed within the flange, and the second limiting portion 433 is disposed on the upper side of the third connecting body 431. By providing the flange, the first limiting portion 414 can be formed, and the second connecting body 421 and the third connecting body 431 can be disposed within the flange, serving as a positioning element and thus improving installation efficiency.

[0058] Optionally, a second clearance hole 422 is provided in the middle of the second connector body 421, and the drive shaft 30 of the drive motor 3 extends out from the front side of the first connector body 411 and connects to the drive rod 33 after passing through the second clearance hole 422 and the first clearance hole 412 in sequence.

[0059] Optionally, the rear end of the valve seat body 11 is provided with a first sealing plane 15 extending in the vertical direction, and the front side of the first connecting member body 411 is provided with a second sealing plane 415 corresponding to the first sealing plane 15 and extending in the vertical direction. The first sealing plane 15 and the second sealing plane 415 are attached and abutted, which is simple and compact. The first sealing plane 15 and the second sealing plane 415 are attached and abutted, thereby giving the valve seat body 11 and the first connecting member 41 a good sealing effect and preventing gas from overflowing through the gap between the valve seat body 11 and the first connecting member 41.

[0060] Optionally, the multiple second air inlets with different diameters include a stir-fry channel M and multiple gear channels N. The multiple gear channels N and the stir-fry channel M are arranged in a clockwise direction so that the multiple commonly used gear channels N and the stir-fry channel M can be selectively opened by the rotation of the drive motor 3. There is no need to set up the throttling gas path in the prior art to realize the delivery of stir-fry gas. The structure is simple and compact and easy to control.

[0061] Optionally, the diameter of the multiple gear channels N gradually increases in a clockwise direction to facilitate adjustment of the gas flow rate at each gear.

[0062] like Figures 6-9 As shown in this embodiment, there are a total of 8 gear channels N. The diameter of the 8 gear channels N gradually increases in the clockwise direction, thereby realizing the adjustment of the gas flow rate of the gas stove in 8 levels.

[0063] like Figure 6 and Figure 7 As shown, when the gas stove is ignited, the 8th gas setting is turned on, and at this time, the 8th setting channel N is connected to the first air inlet 13.

[0064] like Figure 8 and Figure 9 As shown, the drive motor 3 drives the valve core 2 to rotate counterclockwise through the transmission component 7, so that the stir-fry channel M is connected to the first air inlet 13. At this time, the stir-fry mode of the gas stove is turned on. When the stir-fry mode is turned off, the drive motor 3 drives the valve core 2 to reset to the state where the eighth mode channel N is connected to the first air inlet 13 through the transmission component 7.

[0065] Another aspect of the present invention provides a gas stove, including the aforementioned motor valve.

[0066] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. An electric motor valve, characterized in that, include: The valve seat (1) includes a valve seat body (11), a valve cavity (12) opened on the valve seat body (11) with the opening facing rearward, a first air inlet (13) communicating with the valve cavity (12), and a first air outlet (14) communicating with the valve cavity (12). A valve core (2) is installed in the valve cavity (12). The valve core (2) includes a valve core body (21). The valve core body (21) has a second air outlet (23) and multiple second air inlets with different diameters. The second air inlets are corresponding to the first air inlet (13), and the second air outlet (23) is connected to the first air outlet (14). The transmission component (7) has its front end connected to the rear end of the valve core body (21); A drive motor (3) is installed at the rear end of the valve seat (1). The output end of the drive motor (3) is connected to the rear end of the transmission component (7). The drive motor (3) can drive the valve core (2) to rotate in the valve cavity (12) through the transmission component (7) to selectively connect the first air inlet (13) and any of the second air inlets.

2. The motor valve according to claim 1, characterized in that, The output end of the drive motor (3) is provided with a transmission shaft (30) arranged along the axial direction of the valve core body (21) and a transmission rod (33) arranged along the radial direction of the valve core body (21). The transmission rod (33) is connected to the transmission shaft (30). The transmission component (7) includes a transmission component body (71) and a first mounting groove (73) corresponding to the transmission rod (33) opened at the rear end of the transmission component body (71). The first mounting groove (73) is opened along the axial direction of the valve core body (21), and the transmission rod (33) is inserted into the first mounting groove (73).

3. The motor valve according to claim 2, characterized in that, It also includes a buffer elastic element (8), which is disposed between the rear end of the valve core body (21) and the front end of the transmission element (7), and the buffer elastic element (8) can apply a rearward elastic force to the transmission element (7).

4. The motor valve according to claim 2, characterized in that, It also includes a micro switch (5), which is installed on one side of the transmission rod (33). When the transmission rod (33) starts to rotate, the micro switch (5) is triggered.

5. The motor valve according to claim 2, characterized in that, The valve core body (21) has a second mounting groove (22) at its rear end, and the transmission component body (71) has a protrusion (72) at its front end that corresponds to the second mounting groove (22). The second mounting groove (22) is opened along the axial direction of the valve core body (21). The front end of the transmission component body (71) is inserted into the valve core body (21), and the protrusion (72) is inserted into the second mounting groove (22).

6. The motor valve according to any one of claims 1-5, characterized in that, It also includes a connecting component, through which the drive motor (3) is mounted at the rear end of the valve seat body (11).

7. The motor valve according to claim 6, characterized in that, The drive motor (3) includes a motor housing (31) and a motor body disposed within the motor housing (31). A connecting lug (32) is provided at the front end of the motor housing (31). One of a limiting hole (321) and a limiting block (424) is provided on the connecting lug (32). Both the limiting hole (321) and the limiting block (424) are arranged along the axial direction of the valve core (2). A first connecting hole (16) is provided at the rear end of the valve seat body (11). The connecting assembly includes: The first connector (41) includes a first connector body (411), a first clearance hole (412) opened on the first connector body (411) and corresponding to the valve cavity (12), and a second connection hole (413) opened on the first connector body (411) and corresponding to the first connection hole (16). The second connector (42) includes a second connector body (421) and a third connector hole (423) opened on the second connector body (421) and corresponding to the second connector hole (413). The second connector body (421) is provided with the other of the limiting hole (321) and the limiting block (424), and the limiting block (424) is inserted into the limiting hole (321). The third connector (43) includes a third connector body (431) and a fourth connector hole (432) formed on the third connector body (431) and corresponding to the third connector hole (423). The connector lug (32) is located between the second connector body (421) and the third connector body (431). The connecting screw (6) passes through the fourth connecting hole (432), the third connecting hole (423), the second connecting hole (413) and the first connecting hole (16) in sequence to fix the motor housing (31), the third connecting piece (43), the second connecting piece (42), the first connecting piece (41) and the valve seat body (11).

8. The motor valve according to claim 7, characterized in that, At least one of the first connector body (411), the second connector body (421), and the third connector body (431) has a first limiting portion (414) extending rearward along the axial direction of the valve core (2) on its lower side. At least one of the first connector body (411), the second connector body (421), and the third connector body (431) has a second limiting portion (433) extending rearward along the axial direction of the valve core (2) on its upper side. The upper side of the first limiting portion (414) abuts against the lower side of the motor housing (31), and the lower side of the second limiting portion (433) abuts against the upper side of the motor housing (31).

9. The motor valve according to claim 8, characterized in that, The first connector body (411) has a flange extending rearward along the axial direction of the valve core (2) on its periphery. The first limiting part (414) is formed on the lower side of the flange. The second connector body (421) and the third connector body (431) are both disposed in the flange. The second limiting part (433) is disposed on the upper side of the third connector body (431).

10. The motor valve according to claim 7, characterized in that, The valve seat body (11) has a first sealing plane (15) extending vertically at its rear end, and the first connector body (411) has a second sealing plane 415 (415) corresponding to the first sealing plane (15) and extending vertically at its front side. The first sealing plane (15) and the second sealing plane 415 (415) are attached to and abut against each other.

11. The motor valve according to any one of claims 1-5, characterized in that, The second air inlet, which has multiple holes of different diameters, includes a stir-frying channel (M) and multiple gear channels (N), and the multiple gear channels (N) and the stir-frying channel (M) are arranged in a clockwise direction.

12. The motor valve according to claim 11, characterized in that, Along the clockwise direction, the diameter of the multiple gear positions (N) gradually increases.

13. A gas stove, characterized in that, Includes the motor valve as described in any one of claims 1-12.

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