Gas inflow control device of large gas cooking stove

Abstract

The utility model discloses an air inflow control device of a large gas cooking range, which is characterized in that a linkage arm is hinged between sliding blocks on a first valve handle and a second valve handle, so that the second valve handle can be driven to rotate through the linkage arm in the rotating process of the first valve handle, and the aim of simultaneously increasing or reducing the gas inflow and the air inflow is fulfilled; meanwhile, due to the fact that a second valve on the air pipeline does not need to be closed in the initial state, it is guaranteed that air can be kept in the conveying state all the time, at the moment, a sliding block capable of sliding is arranged at the joint of a second valve handle and a linkage arm, and the initial opening degree of the second valve can be adjusted by adjusting the initial position of the sliding block; in addition, when the sliding block is adjusted, acting force is applied upwards to the supporting rod, so that the tooth block on the sliding block and the tooth groove of the groove part are separated, the position of the sliding block is adjusted, after the position is adjusted, the tooth block on the sliding block and the tooth groove of the groove part can be meshed again under the reset effect of the compression spring, and therefore the sliding block is adjusted. And therefore, the sliding block is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of large gas stoves, in particular to an air intake control device for large gas stoves. Background Art

[0002] Gas stoves are one of the commonly used cooking equipment in almost every household in China. With the increasing use of gas, the use of commercial gas stoves is becoming more and more common, including canteens, restaurants, hotels and other catering places.

[0003] In a large gas stove, the air intake involved includes gas intake and air intake. From the perspective of air intake control, the larger the gas intake, the larger the required air intake, and the smaller the gas intake, the smaller the required air intake.

[0004] For example, a Chinese patent with application publication number CN110230827A and application publication date September 13, 2019 discloses the "Master Control System for Premix Gas Stove". A linkage device is also provided between the gas supply controller and the main air controller. The linkage device is suitable for driving the main air controller to operate when the air intake of the main fire air supply duct is adjusted by the gas supply controller, so as to simultaneously adjust the air intake of the main air duct.

[0005] In the specification of the above-mentioned comparative patent, from paragraph

[0036] of its specification, it is explained that the linkage device can be composed of a certain transmission mechanism, or some simple connecting rod mechanisms, including but not limited to gears, sprockets, rocker mechanisms or other similar structures. Figure 2 In the invention, the linkage mechanism adopts a belt linkage structure. However, the belt linkage structure is prone to slipping during adjustment. The present application proposes a new linkage device. Utility Model Content

[0006] The utility model aims to provide an air intake control device for a large gas stove, which can achieve the purpose of increasing or reducing the gas intake and air intake at the same time.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions: an air intake control device for a large gas stove, comprising a mounting plate for mounting on the large gas stove, a gas pipeline arranged on the mounting plate and connected to the gas, an air pipeline arranged on the mounting plate and circulated with the air, an air intake pipe member arranged at the air intake end of the gas pipeline and having a first valve, a second valve arranged in the middle of the air pipeline, and a linkage mechanism arranged between the first valve and the second valve, wherein the first valve is provided with a first valve handle, the second valve is provided with a second valve handle, the linkage mechanism comprises a sliding block slidably arranged on the second valve handle, and a sliding block arranged between the sliding block and the second valve handle. The invention relates to a limit assembly for limiting or unlocking the movement of the sliding block, a linkage arm hinged at both ends between the first valve handle and the sliding block, and the hinges of the sliding block and the linkage arm can be relatively lifted and lowered; the second valve handle is provided with a recessed portion which is recessed downward and extends along its length direction, the sliding block is slidably connected in the recessed portion, and a waist-shaped hole is provided at the bottom of the recessed portion, the limit assembly includes tooth grooves arranged on both sides of the bottom of the recessed portion, a tooth block arranged at the bottom of the sliding block and meshing with the tooth groove at any point, a support rod arranged on the sliding block and passing through the waist-shaped hole, a compression spring sleeved on the support rod, and an anti-slip end cover which is threadedly connected to the lower end of the support rod and makes the upper end of the compression spring press against the recessed portion.

[0008] By adopting the above technical scheme, firstly, a linkage arm is hinged between the sliding blocks on the first valve handle and the second valve handle, so that the second valve handle can be driven to rotate by the linkage arm during the rotation of the first valve handle, thereby achieving the purpose of simultaneously increasing or decreasing the gas intake and the air intake; at the same time, because the second valve on the air pipe does not need to be closed in the initial state to ensure that the air can always maintain the delivery state, a slidable sliding block is set at the connection between the second valve handle and the linkage arm, so that the initial opening degree of the second valve can be adjusted by adjusting the initial position of the sliding block; in addition, when the sliding block is adjusted, the teeth block and the teeth groove of the groove part on the sliding block can be disengaged by applying an upward force to the support rod, thereby achieving the position of the sliding block, and after the position is adjusted, the teeth block and the teeth groove of the groove part on the sliding block can be re-engaged under the reset action of the compression spring, thereby achieving the limitation of the sliding block.

[0009] The utility model is further configured as follows: a first hinge shaft is arranged on the sliding block, one end of the linkage arm is sleeved on the first hinge shaft, and an anti-slip nut which does not affect the relative lifting and lowering of the linkage arm and the sliding block is arranged on the upper end of the first hinge shaft.

[0010] By adopting the above technical solution, through the setting of the first hinge shaft, one end of the linkage arm can be hinged, and the setting of the anti-drop nut can prevent the linkage arm from falling out without affecting the relative lifting and lowering of the linkage arm and the sliding block.

[0011] The utility model is further configured as follows: a second hinge shaft is arranged on the first valve handle, one end of the linkage arm is sleeved on the second hinge shaft, and a handle is arranged on the second hinge shaft to prevent the linkage arm from detaching and not affect the rotation of the linkage arm.

[0012] By adopting the above technical solution, through the setting of the second hinge shaft, one end of the linkage arm can be hinged, so that the setting of the handle can prevent the linkage arm from falling out, and the setting of the handle can facilitate the rotation of the first valve handle to adjust the gas intake volume.

[0013] The utility model is further configured as follows: two gas outlet ends are respectively provided at both ends of the gas pipeline, and a gas outlet pipe fitting with a third valve is provided on the gas outlet end of the gas pipeline; a three-way pipe fitting is provided at the gas outlet end of the air pipeline, and a fourth valve is respectively provided on the two joints of the three-way pipe fitting away from the air pipeline.

[0014] By adopting the above technical scheme, a large gas stove sometimes has two furnaces. By setting two air outlet pipes with a third valve, the gas can be divided into two parts and output from the air outlet pipes. At the same time, the setting of the third valve on the air outlet pipe can further adjust the size of the gas intake volume output by the two air outlet pipes to meet the different gas intake volume requirements of the two furnaces; at the same time, the air outlet end of the air duct is provided with a three-way pipe fitting and two fourth valves, so as to realize the adjustment of the air intake volume delivered to the two furnaces.

[0015] The utility model is further configured as follows: a snap-fitting assembly is arranged between the gas pipeline and the first valve handle for snapping together when the first valve is in a closed state, the snap-fitting assembly includes a clamp arranged on the circumferential side of the gas pipeline, a plastic snap-fitting sleeve arranged on the clamp and having a spherical groove larger than a semicircle, and a spherical head arranged on the first valve handle and used for snapping together in the plastic snap-fitting sleeve; a plurality of open grooves are arranged at the opening of the plastic snap-fitting sleeve for facilitating the deformation of the plastic snap-fitting sleeve under stress.

[0016] By adopting the above technical solution, when the inlet pipe of the gas pipeline needs to be closed, the spherical head is embedded in the plastic snap-fit ​​sleeve for snap-fitting, thereby ensuring that the first valve is in a closed state and the first valve will not be accidentally rotated.

[0017] The utility model is further configured as follows: the third valve and the fourth valve are solenoid valves.

[0018] By adopting the above technical solution, when the gas pipeline is in use, the first valve on the air intake pipe is manually adjusted, and the opening and closing state of the first valve can be ensured at this time. The third valve and the fourth valve are solenoid valves, which can be connected to the control panel of the large gas stove by electrical signals after installation, so as to facilitate the adjustment of the gas intake and air intake delivered to the two furnaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of the utility model;

[0021] Figure 3 yes Figure 1 A partial enlarged view of point A in the figure.

[0022] : Illustrations: 1. mounting plate; 2. gas pipeline; 3. air pipeline; 4. air inlet pipe fitting; 5. first valve; 51. first valve handle; 52. second hinge axis; 53. handle; 6. second valve; 61. second valve handle; 611. recessed portion; 612. waist-shaped hole; 7. linkage mechanism; 71. sliding block; 72. limiting assembly; 721. tooth groove; 722. tooth block; 723. support rod; 724. compression spring; 725. anti-drop end cover; 73. linkage arm; 74. first hinge axis; 75. anti-drop nut; 8. air outlet pipe fitting; 9. third valve; 10. three-way pipe fitting; 11. fourth valve; 12. buckle assembly; 121. clamp; 122. plastic buckle sleeve; 1221. open groove; 123. spherical head. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Embodiment: A gas intake control device for a large gas stove, such as Figure 1 As shown, it includes a mounting plate 1 for mounting on a large gas stove, a gas pipeline 2 arranged on the mounting plate 1 and connected to the gas, an air pipeline 3 arranged on the mounting plate 1 and circulating with the air, an air intake pipe 4 arranged at the air intake end of the gas pipeline 2 and having a first valve 5, a second valve 6 arranged in the middle of the air pipeline 3, and a linkage mechanism 7 arranged between the first valve 5 and the second valve 6.

[0025] like Figure 1 and Figure 2As shown, the first valve 5 is provided with a first valve handle 51, the second valve 6 is provided with a second valve handle 61, the linkage mechanism 7 includes a sliding block 71 slidably arranged on the second valve handle 61, a limiting component 72 arranged between the sliding block 71 and the second valve handle 61 and limiting or unlocking the movement of the sliding block 71, and a linkage arm 73 with both ends hinged between the first valve handle 51 and the sliding block 71. The hinge between the sliding block 71 and the linkage arm 73 can be raised and lowered relative to each other. The second valve handle 61 is provided with a recessed portion 611 which is recessed downward and extends along its length direction. The sliding block 71 is slidably connected in the recessed portion. A waist-shaped hole 612 is provided at the bottom of the recessed portion. The limiting assembly 72 includes tooth grooves 721 arranged on both sides of the bottom of the recessed portion 611, a tooth block 722 arranged at the bottom of the sliding block 71 and meshing with the tooth grooves 721 at any position, a support rod 723 arranged on the sliding block 71 and passing through the waist-shaped hole, a compression spring 724 sleeved on the support rod 723, and an anti-detachment end cover 725 which is threadedly connected to the lower end of the support rod 723 and allows the upper end of the compression spring 724 to press against the recessed portion 611.

[0026] like Figure 2 As shown, the sliding block 71 is provided with a first hinge shaft 74, one end of the linkage arm 73 is sleeved on the first hinge shaft 74, and an anti-detachment nut 75 is provided on the upper end of the first hinge shaft 74 so as not to affect the relative lifting and lowering of the linkage arm 73 and the sliding block 71. The first valve handle 51 is provided with a second hinge shaft 52, one end of the linkage arm 73 is sleeved on the second hinge shaft 52, and a handle 53 is provided on the second hinge shaft 52 so as to prevent the linkage arm 73 from detaching and not affect the rotation of the linkage arm 73.

[0027] like Figure 1 As shown, two gas outlets are respectively provided at both ends of the gas pipeline 2, and a gas outlet pipe fitting 8 with a third valve 9 is provided on the gas outlet end of the gas pipeline 2; a three-way pipe fitting 10 is provided at the gas outlet end of the air pipeline 3, and four valves 11 are respectively provided on two joints of the three-way pipe fitting 10 away from the air pipeline 3. The third valve 9 and the fourth valve 11 are solenoid valves.

[0028] like Figure 1 and Figure 3 As shown, a snap-fit ​​assembly 12 is provided between the gas pipeline 2 and the first valve handle 51 for snapping together when the first valve 5 is in a closed state. The snap-fit ​​assembly 12 includes a clamp 121 provided on the circumferential side of the gas pipeline 2, a plastic snap-fit ​​sleeve 122 provided on the clamp 121 and having a spherical groove larger than a semicircle, and a spherical head 123 provided on the first valve handle 51 and used for snapping together in the plastic snap-fit ​​sleeve 122. A plurality of open grooves 1221 are provided at the opening of the plastic snap-fit ​​sleeve 122 for facilitating deformation of the plastic snap-fit ​​sleeve 122 under stress.

[0029] Implementation effect: First, a linkage arm 73 is hinged between the sliding block 71 on the first valve handle 51 and the second valve handle 61, so that the second valve handle 61 can be driven to rotate by the linkage arm 73 during the rotation of the first valve handle 51, thereby achieving the purpose of increasing or decreasing the gas intake and the air intake at the same time; at the same time, because the second valve 6 on the air pipe 3 does not need to be closed in the initial state to ensure that the air can always be transported, a slidable sliding block 71 is set at the connection between the second valve handle 61 and the linkage arm 73, so that the initial opening degree of the second valve 6 can be adjusted by adjusting the initial position of the sliding block 71; in addition, when the sliding block 71 is adjusted, the tooth block 722 on the sliding block 71 and the tooth groove 721 of the groove part can be disengaged by applying a force upward to the support rod 723, thereby adjusting the position of the sliding block 71. After the position is adjusted, the tooth block 722 on the sliding block 71 and the tooth groove 721 of the groove part can be re-engaged under the reset action of the compression spring 724, thereby limiting the sliding block 71.

[0030] By setting the first hinge shaft 74, one end of the linkage arm 73 can be hinged, and the setting of the anti-drop nut 75 can prevent the linkage arm 73 from falling out, and does not affect the relative lifting of the linkage arm 73 and the sliding block 71. By setting the second hinge shaft 52, one end of the linkage arm 73 can be hinged, so that the setting of the handle 53 can prevent the linkage arm 73 from falling out, and the setting of the handle 53 can easily rotate the first valve handle 51 to adjust the gas intake. The large gas stove sometimes has two furnaces. By setting two gas outlet pipes 8 with the third valve 9, the gas can be divided into two parts and output from the gas outlet pipes 8. At the same time, the setting of the third valve 9 on the gas outlet pipe 8 can further adjust the size of the gas intake output by the two gas outlet pipes 8 to meet the different gas intake requirements of the two furnaces; at the same time, the gas outlet end of the air duct 3 is provided with a three-way pipe 10 and two fourth valves 11, so that the air intake delivered to the two furnaces can be adjusted. When the inlet pipe fitting of the gas pipeline 2 needs to be closed, the spherical head 123 is embedded in the plastic buckle sleeve 122 for buckling, thereby ensuring that the first valve 5 is in a closed state, and the first valve 5 will not be accidentally touched and rotated. When the gas pipeline 2 is in use, the first valve 5 on the air inlet pipe fitting 4 is manually adjusted, and the opening and closing state of the first valve 5 can be ensured at this time. The third valve 9 and the fourth valve 11 are solenoid valves, which can be connected to the control panel of the gas stove by electrical signals after installation, so as to facilitate the adjustment of the gas intake and air intake delivered to the two furnaces.

[0031] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An air intake control device for a large gas stove, comprising a mounting plate (1) for mounting on the large gas stove, a gas pipeline (2) arranged on the mounting plate (1) and communicating with the gas, an air pipeline (3) arranged on the mounting plate (1) and communicating with the air, an air intake pipe (4) arranged at the air intake end of the gas pipeline (2) and having a first valve (5), a second valve (6) arranged in the middle of the air pipeline (3), and a linkage mechanism (7) arranged between the first valve (5) and the second valve (6), characterized in that: The first valve (5) is provided with a first valve handle (51), the second valve (6) is provided with a second valve handle (61), the linkage mechanism (7) comprises a sliding block (71) slidably provided on the second valve handle (61), a limit assembly (72) provided between the sliding block (71) and the second valve handle (61) and limiting or unlocking the movement of the sliding block (71), and a linkage arm (73) with two ends hinged between the first valve handle (51) and the sliding block (71), and the hinged joint of the sliding block (71) and the linkage arm (73) can be raised and lowered relative to each other; The second valve handle (61) is provided with a recessed portion (611) which is recessed downward and extends along its length direction, the sliding block (71) is slidably connected in the recessed portion, and a waist-shaped hole (612) is provided at the bottom of the recessed portion, and the limiting assembly (72) includes tooth grooves (721) arranged on both sides of the bottom of the recessed portion (611), a tooth block (722) arranged at the bottom of the sliding block (71) and meshing with the tooth groove (721) at any position, a support rod (723) arranged on the sliding block (71) and passing through the waist-shaped hole, a compression spring (724) sleeved on the support rod (723), and an anti-detachment end cover (725) which is threadedly connected to the lower end of the support rod (723) and allows the upper end of the compression spring (724) to press against the recessed portion (611).

2. The air intake control device for a large gas stove according to claim 1, characterized in that: The sliding block (71) is provided with a first hinge shaft (74), one end of the linkage arm (73) is sleeved on the first hinge shaft (74), and the upper end of the first hinge shaft (74) is provided with an anti-slip nut (75) which does not affect the relative lifting and lowering of the linkage arm (73) and the sliding block (71).

3. The air intake control device for a large gas stove according to claim 2, characterized in that: The first valve handle (51) is provided with a second hinge shaft (52), one end of the linkage arm (73) is sleeved on the second hinge shaft (52), and the second hinge shaft (52) is provided with a handle (53) which prevents the linkage arm (73) from detaching and does not affect the rotation of the linkage arm (73).

4. The air intake control device for a large gas stove according to claim 3, characterized in that: Two gas outlet ends are respectively arranged at both ends of the gas pipeline (2), and a gas outlet pipe fitting (8) having a third valve (9) is arranged on the gas outlet end of the gas pipeline (2); a three-way pipe fitting (10) is arranged at the gas outlet end of the air pipeline (3), and a fourth valve (11) is respectively arranged on two joints of the three-way pipe fitting (10) away from the air pipeline (3).

5. The air intake control device for a large gas stove according to claim 4, characterized in that: A snap-fit ​​assembly (12) is arranged between the gas pipeline (2) and the first valve handle (51) for snapping when the first valve (5) is in a closed state. The snap-fit ​​assembly (12) comprises a clamp (121) arranged on the circumference of the gas pipeline (2), a plastic snap-fit ​​sleeve (122) arranged on the clamp (121) and having a spherical groove larger than a semicircle, and a spherical head (123) arranged on the first valve handle (51) and used to snap into the plastic snap-fit ​​sleeve (122). The opening of the plastic snap-fit ​​sleeve (122) is provided with a plurality of open grooves (1221) for facilitating the deformation of the plastic snap-fit ​​sleeve (122) under stress.

6. The air intake control device for a large gas stove according to claim 5, characterized in that: The third valve (9) and the fourth valve (11) are solenoid valves.

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