Energy-saving valve structure and gas cooker

Abstract

The utility model discloses an energy-saving valve structure and a gas cooker. The energy-saving valve structure comprises a longitudinal rod, a valve body and a valve rod, a rotating block is further arranged between the bottom end of the longitudinal rod and the valve rod; the rotating block comprises a first extension arm and a second extension arm; the first extension arm extends towards the lower portion of the longitudinal rod, and the second extension arm extends towards the end of the valve rod. According to the utility model, the rotating block is arranged between the longitudinal rod and the valve rod, and the rotating block is provided with the first extension arm and the second extension arm which are relatively long in torque, so that the rotating block can rotate with relatively small downward pressing force in the downward pressing process of the longitudinal rod so as to push the valve rod to move, and a linkage movable structure of the longitudinal rod and the valve rod is relatively smooth; and the clamping stagnation phenomenon is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas appliances, in particular to an energy-saving valve structure and a gas cooker. Background Art

[0002] Gas stoves have been widely used in people's daily lives, but the existing gas stoves cannot achieve low heat when the pot is away and high heat when the pot is in use. This inevitably leads to gas waste when people change or wash pots, resulting in a waste of resources. Existing energy-saving stoves that are away from the pot usually use electronic sensing, such as gravity sensors to calculate the gravity changes on the pot rack to sense whether the pot exists. This structure has a short service life, a high failure rate, and high production and after-sales costs.

[0003] To this end, the prior art has designed an energy-saving valve structure that uses a mechanical drive valve stem structure to adjust the burner gas with a mechanical structure. For example, patent number CN202020681020.0 discloses a gas energy-saving valve. However, in the actual test process, it was found that the above structure has the following defects:

[0004] 1. The exposed extension section at the upper end of the elastic rod is long, which is prone to shaking during the up and down movement, and the smoothness and stability of the up and down movement are poor.

[0005] 2. The top of the elastic rod is a small spherical structure, which can be used with flat-bottomed cookware. If the cookware is curved or pointed, the elastic rod will be pushed and tilted, causing jamming, and the types of cookware that can be used are limited.

[0006] 3. The elastic rod and the valve stem are connected by a rotatable lever; the elastic rod utilizes the smaller lever block on the lever to drive the valve stem to extend and retract to switch the air path; the lever has a smaller torque structure, and the downward-pressed elastic rod often has difficulty in pushing the lever to rotate and becomes stuck, and the smoothness of the linkage structure between the elastic rod and the valve stem is poor.

[0007] Therefore, there is a need to further improve the structure of the energy-saving valve. Utility Model Content

[0008] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an energy-saving valve structure and a gas cooker.

[0009] An embodiment of the utility model adopts a technical solution to solve the technical problem: an energy-saving valve structure, comprising: a longitudinal rod, a valve body, and a valve stem; the valve body has an air inlet channel and an air outlet channel; the valve stem is arranged on the valve body, and is used to open or close the air outlet channel; the longitudinal rod can move up and down; the longitudinal rod is provided with a first return spring, and the valve stem is provided with a second return spring; a rotating block is also provided between the bottom end of the longitudinal rod and the valve stem;

[0010] The rotating block includes a first extension arm and a second extension arm; the first extension arm extends toward the bottom of the longitudinal rod, and the second extension arm extends toward the end of the valve stem.

[0011] Optionally, during the downward pressing process of the longitudinal rod, the valve stem movement stroke corresponding to the maximum swing angle of the end of the first extension arm is 1 to 2 times the valve stem movement stroke required to open the air outlet channel.

[0012] Optionally, during the downward pressing process of the longitudinal rod, the valve stem movement stroke corresponding to the maximum swing angle of the end of the first extension arm is in the range of 1.05 times to 1.35 times the valve stem movement stroke required to open the air outlet channel.

[0013] Optionally, the first extension arm is rotatably connected to a rotating member.

[0014] Optionally, the rotating block is rotatably connected to the valve body via a shaft.

[0015] Optionally, the first extension arm and the second extension arm are arranged on the rotating block in an “L”-shaped structure.

[0016] Optionally, the included angle between the first extension arm and the second extension arm is in the range of 45 degrees to 160 degrees.

[0017] Optionally, the included angle between the first extension arm and the second extension arm is in the range of 85 degrees to 115 degrees.

[0018] Optionally, a valve cap is provided at one end of the valve stem facing the second extension arm, and the valve body is provided with a sealing ring and a gasket; the second return spring is disposed between the gasket and the valve cap.

[0019] Optionally, the valve body is provided with a connecting seat, and a connecting sleeve is provided on the connecting seat; the longitudinal rod is telescopically arranged in the connecting seat and the connecting sleeve up and down; and the first return spring is arranged in the connecting sleeve.

[0020] Optionally, the longitudinal rod is provided with an annular groove for installing a snap ring; the upper end of the first return spring can abut against the snap ring.

[0021] Optionally, a longitudinal extension sleeve is provided above the connecting sleeve, and the upper part of the longitudinal rod is passed through the longitudinal extension sleeve.

[0022] Optionally, the connecting sleeve is in the form of a truncated cone-shaped structure that gradually narrows from bottom to top.

[0023] Optionally, a cap-shaped portion is provided at the top end of the longitudinal rod.

[0024] The beneficial effects of the utility model are as follows: the energy-saving valve is arranged below the burner, the longitudinal rod can be movably arranged in the middle of the burner, and when the pot is placed above the burner, the longitudinal rod can be pressed down; when the pot leaves the burner, the longitudinal rod can be reset upward; the air inlet channel is connected to the air inlet pipe of the gas stove, and the air outlet channel is connected to the outer ring air inlet end of the burner, and the gas supply of the outer ring air inlet end of the burner or part of the gas path can be closed by blocking the air outlet channel. In the utility model, a rotating block is arranged between the longitudinal rod and the valve stem, and the rotating block is provided with a first extension arm and a second extension arm structure with a relatively long torque, so that the rotating block can be rotated with a relatively small downward force during the downward pressing process of the longitudinal rod, thereby pushing the valve stem to move, so that the linkage activity structure of the longitudinal rod and the valve stem is smoother, and the jamming phenomenon is reduced.

[0025] The utility model also provides another technical solution: a gas cooker, comprising the above energy-saving valve structure.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 This is a schematic diagram of the structure of the energy-saving valve of the utility model;

[0029] Figure 2 For use Figure 1 Schematic diagram of the structure of the burner of the energy-saving valve;

[0030] Figure 3 for Figure 1 Cross-sectional view of the energy-saving valve.

[0031] Description of main component symbols:

[0032] 10. Longitudinal rod; 11. First return spring; 12. Annular groove; 13. Snap ring; 14. Cap-shaped portion; 20. Valve body; 21. Air inlet passage; 22. Air outlet passage; 23. Connecting seat; 24. Connecting sleeve; 25. Longitudinal extension sleeve; 30. Valve stem; 31. Second return spring; 32. Valve cap; 33. Sealing ring; 34. Gasket; 40. Rotating block; 41. First extension arm; 42. Second extension arm; 43. Rotating member; 44. Shaft. DETAILED DESCRIPTION

[0033] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0034] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0037] Example

[0038] Reference Figures 1 to 3The utility model proposes an energy-saving valve structure, comprising: a longitudinal rod 10, a valve body 20, and a valve stem 30; the valve body 20 has an air inlet channel 21 and an air outlet channel 22; the valve stem 30 is arranged on the valve body 20, and is used to open or close the air outlet channel 22; the longitudinal rod 10 can move up and down; the longitudinal rod 10 is provided with a first return spring 11, and the valve stem 30 is provided with a second return spring 31; a rotating block 40 is also arranged between the bottom end of the longitudinal rod 10 and the valve stem 30;

[0039] The rotating block 40 includes a first extending arm 41 and a second extending arm 42 ; the first extending arm 41 extends downwardly from the longitudinal rod 10 , and the second extending arm 42 extends toward the end of the valve stem 30 .

[0040] In the utility model, the energy-saving valve is arranged below the burner, and the longitudinal rod 10 can be movably arranged in the middle of the burner. When the pot is placed above the burner, the longitudinal rod 10 can be pressed down; when the pot leaves the burner, the longitudinal rod 10 can be reset upward; the air inlet channel 21 is connected to the air inlet pipe of the gas stove, and the air outlet channel 22 is connected to the outer ring air inlet end of the burner. By blocking the air outlet channel 22, the gas supply of the outer ring air inlet end of the burner or part of the gas path can be closed. In the utility model, a rotating block 40 is arranged between the longitudinal rod 10 and the valve stem 30. The rotating block 40 is provided with a first extension arm 41 and a second extension arm 42 structure with a relatively long torque, so that the pressing process of the longitudinal rod 10 can rotate the rotating block 40 with a small downward force, thereby pushing the valve stem 30 to move, so that the linkage activity structure of the longitudinal rod 10 and the valve stem 30 is smoother, and the jamming phenomenon is reduced.

[0041] In this example, see Figure 3 , during the downward pressing process of the longitudinal rod 10, the movement stroke of the valve stem 30 corresponding to the maximum swing angle at the end of the first extension arm 41 is greater than the movement stroke of the valve stem 30 required for the outlet channel 22 to open. During the upward and downward movement of the longitudinal rod 10, there is a maximum swing angle at the end of the first extension arm 41 corresponding to a movement trajectory K1, which corresponds to the movement trajectory K2 of the swing angle of the second extension arm 42. The swing trajectory K2 of the second extension arm 42 can make the valve stem 30 form a movement stroke D1 forward, and there is a minimum movement stroke D2 of the valve stem 30 required for the outlet channel 22 to open; in order to ensure the stability of the valve stem 30 opening and closing operation of the outlet channel 22, the valve stem 30 forms a movement stroke D1 forward that needs to be greater than the movement stroke D2 of the valve stem 30 required for the outlet channel 22 to open. After testing, the optimal design range is that D1 is 1 to 2 times of D2.

[0042] Preferably, after testing, during the downward pressing process of the longitudinal rod 10, the movement stroke D1 of the valve stem 30 corresponding to the maximum swing angle of the end of the first extension arm 41 is between 1.05 and 1.35 times the movement stroke D2 of the valve stem 30 required to open the outlet channel 22. When the movement stroke D1 of the valve stem 30 is set to be between 1.05 and 1.35 times the movement stroke D2 of the valve stem 30 required to open the outlet channel 22, the stability of the opening and closing operation of the valve stem 30 on the outlet channel 22 can be ensured, and there is no need to set a longer movement arrangement of the valve stem 30. For example, D1 is a design solution of 1.05 times, 1.1 times, 1.15 times, 1.2 times, 1.3 times or 1.35 times D2.

[0043] In this embodiment, the length ratio of the first extension arm 41 and the second extension arm 42 is set according to a preferred range of 1.1 to 1.5 times the travel of the valve stem 30. For example, the length of the first extension arm 41 is 1, 1.15, 1.2, 1.25, 1.3, 1.35 or 1.5 times the length of the second extension arm 42.

[0044] In this embodiment, the first extension arm 41 is rotatably connected to a rotating member 43. By using the rotating member 43 structure such as a roller or a rotating bushing, the sliding friction contact between the lower end of the longitudinal rod 10 and the first extension arm 41 is changed to rolling friction contact, thereby reducing the friction resistance between the two, further making the contact between the longitudinal rod 10 and the rotating block 40 smoother and reducing the jamming phenomenon.

[0045] In this embodiment, the rotating block 40 is rotatably connected to the valve body 20 via a shaft 44 .

[0046] Specifically, the valve body 20 is provided with a hollow channel with a hollow middle portion, the valve stem 30 and the longitudinal rod 10 are respectively arranged at two sections of the hollow channel, and the rotating block 40 is rotatably installed in the hollow channel through the shaft rod 44.

[0047] In this embodiment, the first extension arm 41 and the second extension arm 42 are arranged in an "L"-shaped structure on the rotating block 40. The rotating block 40 structure of the "L"-shaped corner block, the valve stem 30 and the longitudinal rod 10 are respectively arranged at the outer ends of the "L"-shaped corner block, can relatively stably push the rotating block 40 to rotate, and the force is balanced, the structure is strong, and it is not easy to have high local stress.

[0048] Specifically, after testing, when the angle θ1 between the first extension arm 41 and the second extension arm 42 is between 45 degrees and 160 degrees, the torque of the valve stem 30 and the longitudinal rod 10 can be transmitted more stably, the force is balanced, the structural strength is high, and the phenomenon of high local stress is not easy to occur.

[0049] Preferably, after testing, the angle θ1 between the first extension arm 41 and the second extension arm 42 is in the range of 85 to 115 degrees. For example, the angle θ1 between the first extension arm 41 and the second extension arm 42 is 85, 87.5, 90, 95, 100, 102.5, 105, 107, 110.5, 113 or 115 degrees.

[0050] In this embodiment, a valve cap 32 is provided at one end of the valve stem 30 facing the second extension arm 42, and a sealing ring 33 and a gasket 34 are provided on the valve body 20; a second return spring 31 is disposed between the gasket 34 and the valve cap 32. The second return spring 31 is disposed between the valve cap 32 and the gasket 34; the valve stem 30 can be reset while the sealing performance of the sealing ring 33 can be maintained by the second return spring 31. In addition, the valve cap 32 expands the contact area of ​​the end of the valve stem 30, so that the second extension arm 42 and the valve stem 30 have more effective contact surfaces, and the phenomenon of misalignment and jamming is not easy to occur, thereby improving the stability of the contact between the rotating block 40 and the valve stem 30.

[0051] In some embodiments, the valve body 20 is provided with a connection seat 23, and a connection sleeve 24 is provided on the connection seat 23; the longitudinal rod 10 is telescopically arranged in the connection seat 23 and the connection sleeve 24; and the first return spring 11 is arranged in the connection sleeve 24. The first return spring 11 can be conveniently installed by using the connection sleeve 24 structure.

[0052] Specifically, the longitudinal rod 10 is provided with an annular groove 12 for installing the snap ring 13; the upper end of the first return spring 11 can abut against the snap ring 13. The lower end of the first return spring 11 abuts against the connecting seat 23, and the upper end abuts against the snap ring 13, thereby providing elastic force for the longitudinal rod 10 to return upward. During the process of pressing down the connecting sleeve 24 for installation, the connecting snap ring 13 can be abutted against and installed, and the installation of the first return spring 11 is completed.

[0053] In some embodiments, a longitudinal extension sleeve 25 is provided above the connection sleeve 24, and the longitudinal rod 10 is penetrated by the longitudinal extension sleeve 25. The height of the limit hole at the upper end of the longitudinal rod 10 raised by the longitudinal extension sleeve 25 reduces the exposed length of the upper end of the longitudinal rod 10, which can effectively reduce the shaking amplitude of the longitudinal rod 10 when the longitudinal rod 10 moves up and down, and improve the stability of the movement of the longitudinal rod 10. At the same time, the travel installation height of the first return spring 11 is also raised, and a longer spring can be installed, thereby matching more types of springs, facilitating adaptation to improve the smoothness of the movement of the longitudinal rod 10 and improve the comfort of operation.

[0054] In this embodiment, in order to facilitate the downward pressing and installation of the first return spring 11 , the connecting sleeve 24 is in a truncated cone-shaped structure that gradually narrows from bottom to top.

[0055] In some embodiments, a cap-shaped portion 14 is provided at the top of the longitudinal rod 10. For example, a detachable flat nut structure can expand the effective contact surface between the top of the longitudinal rod 10 and the cookware, and the longitudinal rod 10 is less likely to tilt or swing, reduce the phenomenon of misalignment and jamming, and improve the stability of the vertical movement of the longitudinal rod 10. Therefore, it can be adapted to various types of pots such as flat pans or curved pointed bottom pots.

[0056] In some embodiments, the cap-shaped portion 14 may also be integrally formed on the top end of the longitudinal rod 10 .

[0057] The utility model also provides another technical solution: a gas cooker, comprising the above energy-saving valve structure.

[0058] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. An energy-saving valve structure, comprising: A longitudinal rod (10), a valve body (20), and a valve stem (30); the valve body (20) has an air inlet channel (21) and an air outlet channel (22); the valve stem (30) is arranged on the valve body (20) and is used to open or close the air outlet channel (22); the longitudinal rod (10) can move up and down; the longitudinal rod (10) is provided with a first return spring (11), and the valve stem (30) is provided with a second return spring (31); it is characterized in that a rotating block (40) is further provided between the bottom end of the longitudinal rod (10) and the valve stem (30); The rotating block (40) comprises a first extension arm (41) and a second extension arm (42); the first extension arm (41) extends downwardly of the longitudinal rod (10), and the second extension arm (42) extends toward the end of the valve stem (30).

2. The energy-saving valve structure according to claim 1 is characterized in that: During the downward pressing process of the longitudinal rod (10), the movement stroke of the valve stem (30) corresponding to the maximum swing angle of the end of the first extension arm (41) is 1 to 2 times the movement stroke of the valve stem (30) required for opening the air outlet channel (22).

3. The energy-saving valve structure according to claim 2 is characterized in that: During the downward pressing process of the longitudinal rod (10), the movement stroke of the valve stem (30) corresponding to the maximum swing angle at the end of the first extension arm (41) is in the range of 1.05 to 1.35 times the movement stroke of the valve stem (30) required for opening the air outlet channel (22).

4. The energy-saving valve structure according to claim 1 is characterized in that: The first extension arm (41) is rotatably connected to a rotating member (43).

5. The energy-saving valve structure according to claim 1 is characterized in that: The rotating block (40) is rotatably connected to the valve body (20) via a shaft (44).

6. The energy-saving valve structure according to claim 1 is characterized in that: The first extension arm (41) and the second extension arm (42) are arranged on the rotating block (40) in an "L"-shaped structure.

7. The energy-saving valve structure according to claim 6, characterized in that: The included angle between the first extension arm (41) and the second extension arm (42) is in the range of 45 degrees to 160 degrees.

8. The energy-saving valve structure according to claim 7, characterized in that: The included angle between the first extension arm (41) and the second extension arm (42) is in the range of 85 degrees to 115 degrees.

9. The energy-saving valve structure according to claim 1, characterized in that: A valve cap (32) is arranged at one end of the valve stem (30) facing the second extension arm (42), and the valve body (20) is provided with a sealing ring (33) and a gasket (34); the second return spring (31) is arranged between the gasket (34) and the valve cap (32).

10. The energy-saving valve structure according to any one of claims 1 to 9, characterized in that: The valve body (20) is provided with a connecting seat (23), and a connecting sleeve (24) is provided on the connecting seat (23); the longitudinal rod (10) is telescopically arranged in the connecting seat (23) and the connecting sleeve (24); and the first return spring (11) is arranged in the connecting sleeve (24).

11. The energy-saving valve structure according to claim 10, characterized in that: The longitudinal rod (10) is provided with an annular groove (12) for installing a snap ring (13); the upper end of the first return spring (11) can abut against the snap ring (13).

12. The energy-saving valve structure according to claim 10, characterized in that: A longitudinal extension sleeve (25) is arranged above the connecting sleeve (24), and the upper part of the longitudinal rod (10) passes through the longitudinal extension sleeve (25).

13. The energy-saving valve structure according to claim 10, characterized in that: The connecting sleeve (24) is in the form of a truncated cone-shaped cylinder that gradually narrows from bottom to top.

14. The energy-saving valve structure according to claim 1, characterized in that: The top end of the longitudinal rod (10) is provided with a cap-shaped portion (14).

15. A gas cooker, characterized in that: The invention comprises the energy-saving valve structure as described in any one of claims 1 to 14.

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