A kind of pull wire control air valve and stove air linkage control device

Abstract

The utility model relates to the technical field of control valve for kitchen utensils, concretely is a kind of wind valve and stove air linkage control device of pull wire control, pull wire control wind valve includes air pipe, control shaft is rotatably connected in air pipe inside, control shaft is fixedly connected with valve plate. Air pipe outside is fixedly connected with mounting plate, control shaft one end is in sequence and is penetrated air pipe and mounting plate, and is rotatably connected with mounting plate, control shaft is fixedly connected with gear, the surface of mounting plate is equipped with straight slot, straight slot is slidably connected with slide, the upper portion of slide is fixedly connected with rack, rack is engaged with gear, the upper portion of rack is fixedly connected with wire locker, wire locker is used to be connected with wire, wire other end is used to be connected with the gas control valve of stove, when gas control valve act, wire can be driven to move, wire drives rack to move, rack is cooperated with gear, makes control shaft rotate, and further make valve plate rotate, realize the opening and closure of air pipe, to realize the linkage of gas control valve and control wind valve.

Description

Technical Field

[0001] This utility model relates to the field of control valve technology for kitchen utensils, specifically a pull-wire control valve and a gas-air linkage control device for stoves. Background Technology

[0002] Commercial stoves are widely used in restaurants, hotels and other places. Most commercial stoves use gas combustion for heating. Gas needs to be mixed with air to burn completely. Existing stoves generally have two valves, one for controlling the air intake and the other for controlling the air intake. The air intake valve is used to connect to the fan.

[0003] The existing structure has the following problems when in use: the operator needs to frequently adjust the heat to meet different heat requirements when cooking. Each adjustment requires adjusting the air valve and gas valve separately, which is time-consuming, laborious and inconvenient. Furthermore, the manual control of the gas valve and air valve to achieve the mixed combustion of gas and air is mostly based on experience, which can easily lead to uneven air-air mixing ratio, incomplete combustion of gas, energy waste and environmental pollution. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a pull-wire control valve and a stove air linkage control device.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A pull-cord air control valve includes an air duct, the air inlet of which is connected to air supplied by a fan, and the air outlet of which supplies air to the burner of a stove. A control shaft is rotatably connected inside the air duct, and a valve plate is fixedly connected to the control shaft. The valve plate can block the air duct.

[0006] An installation plate is fixedly connected to the outside of the air duct. One end of the control shaft passes through the air duct and the installation plate in sequence and is rotatably connected to the installation plate. A gear is fixedly connected to the control shaft. A straight groove is opened on the surface of the installation plate, and a slide block is slidably connected in the straight groove. A rack is fixedly connected to the upper part of the slide block. The rack meshes with the gear. A wire lock is fixedly connected to the upper part of the rack. The wire lock is used to connect to the wire. The other end of the wire is used to connect to the gas control valve of the stove. When the gas control valve is activated, it can drive the wire to move. The wire drives the rack to move. The rack and gear cooperate to rotate the control shaft, which in turn rotates the valve plate, realizing the opening and closing of the air duct. This realizes the linkage between the gas control valve and the air control valve, which is convenient for the operator to operate once.

[0007] The air duct is fixedly connected to a ignition air supply duct. The air inlet of the ignition air supply duct is located inside the air duct, and the air outlet is located outside the air duct. The air inlet of the ignition air supply duct is coaxial with the air duct and in the same direction as the air inlet end of the air duct. This allows the air entering the air duct to directly enter the air inlet of the ignition air supply duct, reducing the fluctuations and impacts on the air pressure of the ignition air supply caused by the adjustment of the air control valve.

[0008] To facilitate manual control of the maximum air volume of the duct and adapt to different environments and work requirements, the duct is internally connected to an adjusting shaft. The adjusting shaft is fixedly connected to a flow limiting plate, which is located at the air outlet of the duct. One end of the adjusting shaft extends out of the duct and is fixedly connected to the adjusting plate.

[0009] The adjustment plate is provided with two limiting protrusions, which are spaced 90° apart. The lower part of the mounting plate is provided with a limiting plate. Both limiting protrusions can contact and cooperate with the limiting plate, thereby limiting the rotation stroke of the adjustment plate.

[0010] The adjustment plate is equipped with a pointer, which points in the same direction as the flow limiting plate, making it easy to judge the state of the flow limiting plate from the outside.

[0011] The flow-limiting plate is a fan-shaped plate and cannot completely block the air duct.

[0012] The gear has a viewing window on its surface, and a pointer is installed in the viewing window. The mounting plate has scale lines on its surface. The pointer and scale lines work together to facilitate observation of the gear's rotation state, thereby determining the state of the valve plate.

[0013] A first auxiliary plate is provided at the end of the gear away from the rack, and a second auxiliary plate is fixedly provided on the mounting plate. A tension spring is connected between the first auxiliary plate and the second auxiliary plate to keep the valve plate normally closed.

[0014] The gear has a sector-shaped structure.

[0015] A stove air linkage control device includes the pull-cord air control valve mentioned above, a cord locker connecting the cord, the other end of the cord connecting the cord reel, a drive shaft and a reel rotatably arranged inside the reel, the drive shaft and the reel being coaxially and fixedly connected, and the cord being wound on the reel. It also includes a gas control valve, which includes a valve body, a valve core rotatably mounted inside the valve body, a rotating shaft connected to one side of the valve core, and a control handle connected to the rotating shaft after passing through the valve body. A drive shaft inside the cable reel passes through the cable reel and the valve body and is connected to the other side of the valve core.

[0016] A third auxiliary plate is fixedly installed on the mounting plate, and a guide post is provided on the third auxiliary plate. The wire slides through the middle hole of the guide post.

[0017] The beneficial effects achieved by this utility model are: The opening and closing of the air control valve of this utility model is controlled by a wire, which allows this utility model to be flexibly installed in any suitable position on the stove, making it highly practical.

[0018] The switch of this utility model is controlled by pulling a wire. The other end of the wire is linked to the gas control valve, so that the opening and closing of the stove air control valve can be linked with the gas control valve. When the operator opens the gas control valve, the movement of the wire can be converted into the rotation of the control shaft through the meshing of the rack and pinion, thereby controlling the opening and closing of the valve plate. In addition, by setting the gear transmission ratio, the opening degree of the gas control valve and the air control valve can be precisely set, so that the air-to-gas ratio remains consistent at any opening degree of the gas control valve. This is one of the main conditions to ensure complete combustion of gas.

[0019] The structure of this utility model is flexible and adjustable. By pressing the locking device, the locking device can be unlocked from the wire, which makes it easy to adjust the initial relative position of the wire and the rack. In addition, the flow limiting plate is controlled by an external adjustment plate, which makes it easy to manually control the maximum air volume of the duct. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ; Figure 3 This is a half-sectional view of the present invention; Figure 4 This is a schematic diagram of the structure of this utility model. Figure 4 ; Figure 5 This is a schematic diagram of the structure of this utility model. Figure 5 ; Figure 6 This is a schematic diagram of the structure of this utility model. Figure 6 ; Figure 7 This is a schematic diagram illustrating the combination of this utility model with wires and gas control valves. Figure 1 ; Figure 8 This is a schematic diagram illustrating the combination of this utility model with wires and gas control valves. Figure 2 ; Figure 9 yes Figure 8 AA sectional view.

[0021] In the diagram: 1. Air duct; 2. Mounting plate; 3. Gear; 4. Rack; 5. Cable lock; 6. Ignition air supply duct; 7. First auxiliary plate; 8. Second auxiliary plate; 9. Third auxiliary plate; 10. Adjusting plate; 11. Viewing window; 12. Straight groove; 13. Flow restrictor; 14. Valve plate; 15. Control shaft; 16. Slide; 17. Indicator; 18. Limiting plate; 19. Adjusting shaft; 20. Tension spring; 21. Wire; 22. Guide column; 23. Cable reel; 24. Gas control valve; 25. Limiting protrusion; 26. Control handle; 27. Sleeve; 28. Cable reel; 29. ​​Valve core; 30. Rotating shaft; 31. Drive shaft. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Example: like Figures 1-7 As shown, a pull-wire control valve includes an air duct 1. The air inlet end of the air duct 1 is connected to the output end of the stove fan, which provides air to the duct. The air outlet end of the air duct 1 provides air to the stove burner. A control shaft 15 is rotatably connected inside the air duct 1. A valve plate 14 is fixedly connected to the control shaft 15. The valve plate 14 can open or close the air duct 1.

[0024] A mounting plate 2 is fixedly connected to the outside of the duct 1. The mounting plate 2 has an inverted U-shaped structure. One end of the control shaft 15 passes through the duct 1 and the mounting plate 2 in sequence and is rotatably connected to the mounting plate 2. A gear 3 is fixedly connected to the control shaft 15. A straight groove 12 is opened on the surface of the mounting plate 2. A slide block 16 is slidably connected in the straight groove 12. A rack 4 is fixedly connected to the upper part of the slide block 16. The rack 4 meshes with the gear 3. A wire lock 5 is fixedly connected to the upper part of the rack 4. The wire lock 5 is used to connect with the wire 21. The wire lock 5 is a tension head adjustable wire lock 5 that can be directly purchased from the prior art. It can flexibly lock or unlock with the wire 21, which is convenient for debugging and maintenance. In addition, the wire lock 5 is selected with a threaded locking function.

[0025] The duct 1 is fixedly connected to a ignition air supply duct 6. The air inlet of the ignition air supply duct 6 is located inside the duct 1, and the air outlet is located outside the duct 1. The ignition air supply duct 6 provides air for the combustion of the ignition source. The air inlet of the ignition air supply duct 6 is coaxial with the duct 1 and faces the same direction as the air inlet end of the duct 1, thus facilitating the direct flow of air entering the duct 1 into the air inlet of the ignition air supply duct 6. For ease of installation, the ignition air supply duct 6 is designed as an L-shaped bend with a rounded transition at the corner to reduce air resistance. To facilitate manual control of the maximum airflow of the duct 1 to adapt to different environments and work requirements, an adjusting shaft 19 is rotatably connected inside the duct 1. The adjusting shaft 19 is fixedly connected to a flow restrictor 13. Figure 6 As shown, the flow-limiting plate 13 is a fan-shaped plate and cannot completely block the air duct 1.

[0026] A flow restrictor 13 is installed at the air outlet of the duct 1. One end of the adjusting shaft 19 extends out of the duct 1 and is fixedly connected to the adjusting plate 10. The adjusting plate 10 is provided with two limiting protrusions 25, which are spaced 90° apart. The lower part of the mounting plate 2 is provided with a limiting plate 18. Both limiting protrusions 25 can contact and cooperate with the limiting plate 18, thereby limiting the rotation stroke of the adjusting plate 10 to within 90°.

[0027] The adjustment plate 10 is provided with a pointer 17, which points in the same direction as the flow limiting plate 13, so as to facilitate the external judgment of the state of the flow limiting plate 13.

[0028] A viewing window 11 is provided on the surface of the gear 3, and a pointer is provided in the viewing window 11. A scale line is provided on the surface of the mounting plate 2. The pointer and the scale line cooperate to facilitate observation of the rotation state of the gear 3, thereby determining the state of the valve plate 14.

[0029] A first auxiliary plate 7 is provided at the end of the gear 3 away from the rack 4, and a second auxiliary plate 8 is fixedly provided on the mounting plate 2. A tension spring 20 is connected between the first auxiliary plate 7 and the second auxiliary plate 8 to keep the valve plate 14 normally closed.

[0030] The gear 3 has a sector-shaped structure, which reduces the overall volume.

[0031] like Figures 1-9 As shown, a stove air linkage control device includes the above-mentioned pull-cord air control valve, a cord locker 5 connected to a wire 21, the other end of the wire 21 connected to a winding reel 23, a drive shaft 31 and a winding reel 28 rotatably arranged inside the winding reel 23, the drive shaft 31 and the winding reel 28 are coaxially fixedly connected, and the wire 21 is wound on the winding reel 28. It also includes a gas control valve 24, which includes a valve body. A valve core 29 is rotatably disposed inside the valve body. A rotating shaft 30 is connected to one side of the valve core 29. The rotating shaft 30 passes through the valve body and is connected to a control handle 26. The rotating shaft 30 is rotatably connected to the valve body. A drive shaft 31 inside the cable reel 23 passes through the cable reel 23 and the valve body and is connected to the other side of the valve core 29.

[0032] Specifically, the other end of the cable 21 is connected inside the cable reel 23, such as... Figures 7-9 As shown, the cord reel 23 is fixedly connected to the gas control valve 24 of the stove. The cord reel 23 is rotatably equipped with a drive shaft 31 and a cord reel 28, and the cord reel 28 of the cord reel 23 can be linked with the valve core 29 of the gas control valve 24. The gas control valve 24 is a manual ball valve with a control handle 26. The valve core 29 of the gas control valve 24 is fixedly connected to the drive shaft 31 of the reel 23. The control handle 26 drives the valve core 29 to rotate, which in turn drives the drive shaft 31 of the reel 23 to rotate. The drive shaft 31 of the reel 23 drives the reel 28 to rotate, which winds the wire 21, causing the other end of the wire 21 to move. The wire 21 then moves the rack 4 of the pull-cord air control valve. The rack 4 engages with the gear 3 to rotate the control shaft 15, which in turn rotates the valve plate 14, thus opening and closing the air duct 1. This achieves the linkage between the gas control valve 24 and the air control valve, allowing the operator to perform only one operation.

[0033] The valve core 29 has an elongated valve hole, which allows the gas to flow more linearly and smoothly.

[0034] A third auxiliary plate 9 is fixedly installed on the mounting plate 2. A guide post 22 is installed on the third auxiliary plate 9. The wire 21 slides through the middle hole of the guide post 22 to ensure that the wire 21 moves in a straight line.

[0035] A flexible sleeve 27 is provided between the reel 23 and the guide post 22 to provide external protection for the wire 21.

Claims

1. A pull-wire controlled air valve, comprising an air duct (1), a control shaft (15) rotatably connected inside the air duct (1), and a valve plate (14) fixedly connected to the control shaft (15), characterized in that, The air duct (1) is fixedly connected to the outside of the mounting plate (2). One end of the control shaft (15) passes through the air duct (1) and the mounting plate (2) in sequence and is rotatably connected to the mounting plate (2). The control shaft (15) is fixedly connected to the gear (3). The surface of the mounting plate (2) is provided with a straight groove (12). A slide block (16) is slidably connected in the straight groove (12). A rack (4) is fixedly connected to the upper part of the slide block (16). The rack (4) meshes with the gear (3). A wire lock (5) is fixedly connected to the upper part of the rack (4). The wire lock (5) is used to connect with the wire (21).

2. The pull-cord control valve according to claim 1, characterized in that, The air duct (1) is fixedly connected to a tinder supply air duct (6). The air inlet of the tinder supply air duct (6) is located inside the air duct (1), and the air outlet is located outside the air duct (1). The air inlet of the tinder supply air duct (6) is coaxial with the air duct (1) and is in the same direction as the air inlet end of the air duct (1).

3. The pull-cord control valve according to claim 1, characterized in that, The air duct (1) is rotatably connected to an adjusting shaft (19), and the adjusting shaft (19) is fixedly connected to a flow limiting plate (13). The flow limiting plate (13) is set at the air outlet end of the air duct (1). One end of the adjusting shaft (19) extends out of the air duct (1) and is fixedly connected to the adjusting plate (10).

4. The pull-cord control valve according to claim 3, characterized in that, The adjustment plate (10) is provided with two limiting protrusions (25), which are spaced 90° apart. The lower part of the mounting plate (2) is provided with a limiting plate (18), and both limiting protrusions (25) can contact and cooperate with the limiting plate (18).

5. The pull-cord control valve according to claim 3, characterized in that, The regulating plate (10) is provided with a pointer (17), and the pointer (17) points in the same direction as the flow limiting plate (13).

6. The pull-cord control valve according to claim 3, characterized in that, The flow-limiting plate (13) is a fan-shaped plate.

7. The pull-cord control valve according to claim 1, characterized in that, The gear (3) has a viewing window (11) with a pointer inside. The surface of the mounting plate (2) has scale lines, and the pointer cooperates with the scale lines.

8. The pull-cord control valve according to claim 1, characterized in that, A first auxiliary plate (7) is provided at the end of the gear (3) away from the rack (4), and a second auxiliary plate (8) is fixedly provided on the mounting plate (2). A tension spring (20) is connected between the first auxiliary plate (7) and the second auxiliary plate (8).

9. A stove-mounted air-pump linkage control device, characterized in that, The cable control valve includes any one of claims 1-8, wherein the cable lock (5) is connected to the cable (21), the other end of the cable (21) is connected to the reel (23), and the reel (23) is rotatably provided with a drive shaft (31) and a reel (28), the drive shaft (31) and the reel (28) are coaxially fixedly connected, and the cable (21) is wound on the reel (28); It also includes a gas control valve (24), which includes a valve body and a valve core (29) rotatably disposed inside the valve body. A rotating shaft (30) is connected to one side of the valve core (29). The rotating shaft (30) passes through the valve body and is connected to an operating handle (26). A drive shaft (31) inside the reel (23) passes through the reel (23) and the valve body and is connected to the other side of the valve core (29).

10. The stove ventilation linkage control device according to claim 9, characterized in that, A third auxiliary plate (9) is fixedly installed on the mounting plate (2), and a guide post (22) is installed on the third auxiliary plate (9). The wire (21) slides through the middle hole of the guide post (22).

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