A gas stove air-gas linkage switch mechanism

Abstract

The utility model discloses a kind of air-gas linkage switch mechanisms for gas stove, comprising: gas pipe, gas pipe is equipped with ball valve switch, the outer wall of ball valve switch is equipped with transmission shaft coaxially connected with the rotating shaft of ball valve switch;Air pipe, air pipe is equipped with rotary valve switch;Adjusting component, including support piece fixed on the outer wall of ball valve switch, the side direction of support piece away from ball valve switch is equipped with cam, the rotation center of cam is fixedly connected with transmission shaft, first connecting rod is rotatably arranged on support piece, the first end of first connecting rod is rotatably connected with support piece, support piece is above cam, abutting column that support piece is equipped with and abuts on the upper end edge of cam;Linkage component, including second connecting rod, the upper end of second connecting rod is hinged with the end of first connecting rod, the lower end of second connecting rod is hinged with connector, connector is vertically connected on transmission rod, one end of transmission rod is coaxially fixedly connected with the rotating shaft of rotary valve switch, the utility model structure is simple, easy to install.

Description

Technical Field

[0001] This utility model relates to the field of gas stove adjustment switch technology, specifically to a gas stove air-gas linkage switch mechanism. Background Technology

[0002] Commercial gas stoves are mostly used in restaurants. Generally, commercial gas stoves have gas inlet pipes and air inlet pipes. Because the gas inlet pipes require a high degree of sealing, ball valves are used to control the on / off switch and adjust the volume. The air inlet pipes do not have high sealing requirements and, considering cost issues, simple rotary valves are commonly used to control the on / off switch and adjust the volume.

[0003] In operation, to ensure complete combustion, the intake air volume and the intake air volume need to be matched. Therefore, when adjusting the ball valve in the intake pipe, the rotary valve in the intake air pipe also needs to be adjusted simultaneously. Furthermore, for ease of use, the ball valve in the intake pipe and the rotary valve in the intake air pipe need to be linked, so that only one valve needs to be controlled.

[0004] In the prior art, the invention patent with patent number "CN119467838A" discloses a gas-air linkage valve, including: a gas pipe, the gas pipe being equipped with a ball valve; an air inlet pipe, the air inlet pipe being equipped with a rotary valve; an adjustment box, the adjustment box being installed on the gas pipe, the adjustment box being equipped with a rotating cam, the cam being connected to the ball valve and rotating synchronously, the adjustment box being equipped with an inclined first swing rod, one end of the first swing rod being equipped with a driving part abutting against the edge of the cam, the first swing rod being rotatably installed in the adjustment box, the adjustment box also being equipped with a second swing rod, the second swing rod being rotatably installed in the adjustment box through a rotating column, the first swing rod being driven by a connecting rod assembly to swing synchronously with the second swing rod, one end of the rotating column extending out of the adjustment box being equipped with a first connector, the outer side of the air inlet pipe being equipped with a second connector connected to the rotary valve and rotating synchronously, the first connector and the second connector being connected by a universal rotating assembly.

[0005] However, due to their complex structure, the aforementioned patents have low compatibility with gas stoves on the market during actual installation and use, and components such as the adjustment box require mold manufacturing, resulting in high costs. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model proposes a gas stove air-gas linkage switch mechanism.

[0007] To achieve the above-mentioned technical effects, the present invention adopts the following solution:

[0008] A gas stove fan-gas linkage switch mechanism includes:

[0009] A gas pipe, wherein a ball valve switch is provided on the gas pipe, and a transmission shaft coaxially connected to the rotating shaft of the ball valve switch is provided on the outer wall of the ball valve switch;

[0010] A vent pipe, wherein a rotary valve switch is provided on the vent pipe;

[0011] An adjustment assembly includes a support member fixed to the outer wall of a ball valve switch. A cam is provided on the support member on the side away from the ball valve switch. The rotation center of the cam is fixedly connected to a transmission shaft. A first connecting rod is rotatably provided on the support member. The first end of the first connecting rod is rotatably connected to the support member. The support member is located above the cam. An abutment post is provided on the support member that abuts against the upper edge of the cam.

[0012] The linkage assembly includes a second link, the upper end of which is hinged to the end of the first link, and the lower end of the second link is hinged to a connector, which is vertically connected to a transmission rod. One end of the transmission rod is coaxially and fixedly connected to the rotation shaft of the rotary valve switch.

[0013] In a preferred embodiment, a spring is connected between the first connecting rod and the support member, with the upper end of the spring connected to the first connecting rod and the lower end of the spring connected to the support member.

[0014] In a preferred embodiment, the support includes a first mounting plate and a second mounting plate. The first mounting plate is fixedly connected to the ball valve switch, and the second mounting plate is attached to the side of the first mounting plate away from the ball valve switch. The first mounting plate has at least one horizontal slotted hole, and the second mounting plate is fixedly provided with a stud passing through the slotted hole. A locking nut is fitted on the stud, and the first connecting rod is mounted on the second mounting plate.

[0015] In a preferred embodiment, the second connecting rod includes a first adjusting rod and a second adjusting rod. The upper end of the first adjusting rod is hinged to the end of the first connecting rod. The first adjusting rod has multiple through holes along its length. The second adjusting rod is attached to the first adjusting rod and is arranged parallel to it. The second adjusting rod has a strip-shaped slide along its length, and the strip-shaped slide corresponds to the through holes. The first adjusting rod and the second adjusting rod are locked together by bolts passing through the strip-shaped slide and the through holes. The lower end of the second adjusting rod is hinged to a third connecting rod.

[0016] In a preferred embodiment, the connector is connected to the transmission rod via a clamp, the clamp is mounted on the transmission rod, and the connector is fixedly connected to the clamp.

[0017] In a preferred embodiment, the edge of the cam is provided with at least one driving arc segment, the driving arc segment including a first arc segment and a second arc segment connected together, and the curvature of the first arc segment is gentler than that of the second arc segment relative to the center of the cam.

[0018] Compared with existing technologies, the beneficial effects are:

[0019] This utility model has a simple structure and is easy to use. When the ball valve is adjusted, the cam is driven to rotate, which in turn drives the transmission rod to rotate along the axis through the first connecting rod, the second connecting rod and the connecting head, thereby driving the rotary valve to be adjusted. This makes the structure of this utility model simpler, easier to install and lower in cost. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 yes Figure 1 Another perspective structural diagram.

[0022] Figure 3 yes Figure 1 A magnified structural diagram of part A in the middle.

[0023] Figure 4 yes Figure 2 A magnified structural diagram of part B.

[0024] Reference numerals: 1. Ball valve switch; 2. First mounting plate; 3. Second mounting plate; 4. Strip hole; 5. Stud; 6. First connecting rod; 7. First adjusting rod; 8. Through hole; 9. Second adjusting rod; 10. Strip slide; 11. Connector; 12. Clamp; 13. Transmission rod; 14. Rotary valve switch; 15. Cam; 16. Abutment; 17. Spring; 18. First arc segment; 19. Second arc segment. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] A gas stove ventilation linkage switch mechanism includes: a gas pipe, a gas pipe, an adjustment component, and a linkage component.

[0027] A gas pipe is provided, and a ball valve switch 1 is installed on the gas pipe. A drive shaft, coaxially connected to the rotating shaft of the ball valve switch 1, is located on the outer wall of the ball valve switch 1. In the prior art, the ball valve switch 1 mainly consists of a valve body, a ball, a valve seat, and a valve stem. The valve body is the outer shell of the ball valve, with an internal channel for fluid flow. The ball is the valve's opening and closing component, rotating 90 degrees to connect, disconnect, or regulate the fluid. The valve stem connects the ball and the operating mechanism, enabling the ball's rotation. The valve stem is located outside the valve body, extending into the valve body via a rotating shaft and fixedly connected to the ball, thus rotating the ball through the rotation of the valve stem. This invention improves the ball valve switch 1 by fixing a drive shaft to the other end of the ball relative to the rotating shaft. The drive shaft is coaxial with the rotating shaft and extends from the other side of the valve body, sealingly connecting to it in the same way as the valve stem connecting to the ball in the prior art.

[0028] A vent pipe is provided with a rotary valve switch 14. The rotary valve switch 14 in the prior art includes a valve body, and a rotating circular switch plate is matched in the valve body. The two ends of the switch plate are mounted on the valve body and rotated through a rotating shaft.

[0029] The adjustment assembly includes a support member fixed to the outer wall of the ball valve switch 1. A cam 15 is provided on the support member on the side away from the ball valve switch 1. The rotation center of the cam 15 is fixedly connected to the transmission shaft. When the valve stem of the ball valve switch 1 is rotated, the ball inside the ball valve switch 1 rotates, thereby driving the cam 15 to rotate synchronously through the transmission shaft. A first connecting rod 6 is rotatably provided on the support member. The first end of the first connecting rod 6 is rotatably connected to the support member. The support member is located above the cam 15. The support member is provided with an abutment post that abuts against the upper edge of the cam 15. When the cam 15 rotates, the first connecting rod 6 can be lifted by the abutment post 16, causing the first connecting rod 6 to rotate.

[0030] The linkage assembly includes a second connecting rod, the upper end of which is hinged to the end of the first connecting rod 6, and the lower end of the second connecting rod is hinged to a connector 11. The connector 11 is vertically connected to a transmission rod 13, and one end of the transmission rod 13 is coaxially and fixedly connected to the rotating shaft of the rotary valve switch 14. When installed on a gas stove, one end of the transmission rod 13 is coaxially connected to the rotating shaft of the rotary valve switch 14, and the other end of the transmission rod 13 is rotatably mounted on the gas stove for support. The first connecting rod 6 rotates around its head under the drive of the cam 15, thereby the end of the first connecting rod 6 pulls the connector 11 through the second connecting rod, causing the transmission rod 13 to rotate around its central axis, thereby causing the rotating shaft of the rotary valve switch 14 to rotate. This achieves the simultaneous rotation of the ball valve switch 1 and the rotary valve switch 14 by rotating only the valve stem of the ball valve switch 1, thereby synchronously adjusting the gas intake of the gas pipe and the ventilation of the ventilation pipe.

[0031] This invention features a simple structure, with all components formed by stamping, reducing the need for mold development and lowering costs.

[0032] In a preferred embodiment, a spring 17 is connected between the first connecting rod 6 and the support member, with the upper end of the spring 17 connected to the first connecting rod 6 and the lower end of the spring 17 connected to the support member.

[0033] The connection between the spring 17 and the first link 6 is located between the abutment post and the end of the first link 6. The spring 17 pulls the first link 6 downward, so that the abutment post can always abut against the cam 15.

[0034] In a preferred embodiment, the support includes a first mounting plate 2 and a second mounting plate 3. The first mounting plate 2 is fixedly connected to the ball valve switch 1. The second mounting plate 3 is attached to the side of the first mounting plate 2 away from the ball valve switch 1. The first mounting plate 2 has at least one horizontal slotted hole 4. The second mounting plate 3 is fixedly provided with a stud 5 passing through the slotted hole 4. A locking nut is fitted on the stud 5. The first connecting rod 6 is mounted on the second mounting plate 3.

[0035] The first mounting plate 2 is fixed on the ball valve switch 1. After loosening the locking nut, the second mounting plate 3 can be moved along the strip hole 4 to adjust the position of the second mounting plate 3. The second mounting plate 3 has an opening for avoiding the drive shaft. Since the first connecting rod 6 is located on the second mounting plate 3 and the cam 15 is fixed on the ball valve switch 1, the position of the stop block of the first connecting rod 6 against the cam 15 changes after the position of the second mounting plate 3 is moved.

[0036] Because the curvature is different at each point on the arc of cam 15, when the initial position of the stop block in contact with cam 15 changes, the same angle of rotation of cam 15 can raise the stop block to different heights, causing the first connecting rod 6 to rotate at different angles. Therefore, by adjusting the position of the second mounting plate 3, the coordination between the ball valve switch 1 and the rotary valve switch 14 can be adjusted.

[0037] In a preferred embodiment, the second connecting rod includes a first adjusting rod 7 and a second adjusting rod 9. The upper end of the first adjusting rod 7 is hinged to the end of the first connecting rod 6. The first adjusting rod 7 has a plurality of through holes 8 along its length. The second adjusting rod 9 is attached to the first adjusting rod 7 and is arranged parallel to the first adjusting rod 7. The second adjusting rod 9 has a strip-shaped slide 10 along its length, and the strip-shaped slide 10 corresponds to the through holes 8. The first adjusting rod 7 and the second adjusting rod 9 are locked together by bolts passing through the strip-shaped slide 10 and the through holes 8. The lower end of the second adjusting rod 9 is hinged to a third connecting rod.

[0038] After loosening the bolts, the first adjusting rod 7 and the second adjusting rod 9 can be extended and retracted along the strip slide 10, thereby changing the length of the second connecting rod.

[0039] In a preferred embodiment, the connector 11 is connected to the transmission rod 13 via a clamp 12, the clamp 12 is mounted on the transmission rod 13, and the connector 11 is fixedly connected to the clamp 12.

[0040] In a preferred embodiment, the edge of the cam 15 is provided with at least one driving arc segment, which includes a first arc segment 18 and a second arc segment 19 connected together. Relative to the center of the cam 15, the curvature of the first arc segment 18 is gentler than that of the second arc segment 19. The design of the cam 15 and the driving arc segment refers to the design of the adjusting cam in the utility model patent with patent number "CN220958531 U".

[0041] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A gas stove fan-gas linkage switch mechanism, characterized in that, include: A gas pipe is provided with a ball valve switch (1), and a transmission shaft coaxially connected to the rotating shaft of the ball valve switch (1) is provided on the outer wall of the ball valve switch (1). A vent pipe, wherein a rotary valve switch (14) is provided on the vent pipe; The adjustment assembly includes a support member fixed to the outer wall of the ball valve switch (1). A cam (15) is provided on the support member on the side away from the ball valve switch (1). The rotation center of the cam (15) is fixedly connected to the transmission shaft. A first connecting rod (6) is rotatably provided on the support member. The first end of the first connecting rod (6) is rotatably connected to the support member. The support member is located above the cam (15). An abutting post is provided on the support member that abuts against the upper edge of the cam (15). The linkage assembly includes a second link, the upper end of which is hinged to the end of the first link (6), and the lower end of the second link is hinged to a connector (11). The connector (11) is vertically connected to the transmission rod (13), and one end of the transmission rod (13) is coaxially fixedly connected to the rotation shaft of the rotary valve switch (14).

2. The gas stove fan-gas linkage switch mechanism as described in claim 1, characterized in that, A spring (17) is connected between the first link (6) and the support member. The upper end of the spring (17) is connected to the first link (6), and the lower end of the spring (17) is connected to the support member.

3. The gas stove fan-gas linkage switch mechanism as described in claim 1, characterized in that, The support includes a first mounting plate (2) and a second mounting plate (3). The first mounting plate (2) is fixedly connected to the ball valve switch (1). The second mounting plate (3) is attached to the side of the first mounting plate (2) away from the ball valve switch (1). The first mounting plate (2) has at least one horizontal strip hole (4). The second mounting plate (3) is fixedly provided with a stud (5) passing through the strip hole (4). The stud (5) is fitted with a locking nut. The first connecting rod (6) is installed on the second mounting plate (3).

4. The gas stove fan-gas linkage switch mechanism as described in claim 1, characterized in that, The second connecting rod includes a first adjusting rod (7) and a second adjusting rod (9). The upper end of the first adjusting rod (7) is hinged to the end of the first connecting rod (6). The first adjusting rod (7) has multiple through holes (8) along its length. The second adjusting rod (9) fits against the first adjusting rod (7) and is arranged parallel to the first adjusting rod (7). The second adjusting rod (9) has a strip-shaped slide (10) along its length. The strip-shaped slide (10) corresponds to the through holes (8). The first adjusting rod (7) and the second adjusting rod (9) are locked together by bolts passing through the strip-shaped slide (10) and the through holes (8). The lower end of the second adjusting rod (9) is hinged to a third connecting rod.

5. The gas stove fan-gas linkage switch mechanism as described in claim 1, characterized in that, The connector (11) is connected to the transmission rod (13) via a clamp (12). The clamp (12) is located on the transmission rod (13), and the connector (11) is fixedly connected to the clamp (12).

6. The gas stove fan-gas linkage switch mechanism as described in claim 1, characterized in that, The edge of the cam (15) is provided with at least one driving arc segment, which includes a first arc segment (18) and a second arc segment (19) connected together. Relative to the center of the cam (15), the curvature of the first arc segment (18) is gentler than that of the second arc segment (19).

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