CN220958531U - Gas furnace gas quantity and air quantity adjusting device utilizing cam - Google Patents

Abstract

The utility model discloses a gas stove air quantity and air quantity regulating device utilizing cams, which comprises an air inlet pipe provided with a ball valve and an air inlet pipe provided with a rotary valve, wherein the ball valve is connected with a spanner I through a rotary shaft I, the rotary valve is connected with a rotating piece through a rotary shaft II, the spanner I and the rotating piece are linked through a connecting mechanism, the connecting mechanism comprises a regulating cam, a mounting part of the regulating cam is arranged on the rotary shaft I, one side of the regulating cam is provided with an arc part I, an arc part II and an arc part III which are continuously arranged, the center of rotation of the rotary shaft I, the center of the mounting part, the arc part I and the center of the arc part III are overlapped, the radius of the arc part I is smaller than the radius of the arc part III, the arc part II is connected with the arc part I and the arc part III, a rotating rod is positioned on one side of the regulating cam, one end of the rotating rod is rotatably arranged on the air inlet pipe, the rotating rod is provided with an abutting part, the abutting part is abutted against the arc part I in the initial state, and the other end of the rotating rod is connected with the rotating piece through a linkage piece.

Description

Gas furnace gas quantity and air quantity adjusting device utilizing cam

Technical Field

The utility model relates to the technical field of gas stoves, in particular to a gas stove gas flow and air quantity adjusting device utilizing a cam.

Background

The commercial gas stove is mainly used for restaurants, the general commercial gas stove is provided with an air inlet pipeline and an air inlet pipeline, the air inlet pipeline is controlled to be opened and closed and the size is adjusted through a ball valve because of higher sealing performance, the air inlet pipeline is not high in sealing requirement, and in consideration of cost, the air inlet pipeline is usually controlled to be opened and the size is adjusted through a simple rotary valve;

The partial cross-section illustration of the ball valve in the prior art is shown in fig. 1, a spherical space is arranged in the middle of the ventilation pipeline (2), a spherical adjusting ball (3) is arranged in the spherical space, a gas through hole (4) is arranged on the adjusting ball in a penetrating way, the adjusting ball is driven to rotate by a valve rod, in order to ensure tightness, the gas through hole on the adjusting ball is in a horizontal state in a closed state, the end part of the gas through hole is ensured to be far away from the ventilation pipeline, and gas leakage caused by the fact that too close gas easily permeates into the gas through hole is avoided; in the state, when the wrench for rotating the ball valve drives the adjusting ball to rotate, the ball valve can be opened only after the wrench rotates for a certain angle, so that the wrench has a virtual position with a certain angle at the beginning stage;

a schematic diagram of a section of a rotary valve part in the prior art is shown in fig. 2, a circular rotary baffle (6) is arranged in a valve body pipeline, two ends of the rotary baffle are rotationally connected to the side wall of the valve body pipeline through a valve rod, and the valve rod is driven to rotate through a spanner, so that the rotary baffle rotates by a certain angle to be communicated with two ends of the valve body pipeline, and the rotary valve can be opened only by rotating the spanner.

In the actual use process of a commercial gas stove, the fire needs to be controlled by controlling the air inflow and the air inflow, but for cooking of Chinese meal, the fire needs to be different in different stages of the cooking process, so that the adjustment needs to be performed at any time, and the gas valve and the air inlet valve are respectively corresponding to two adjusting switches, so that the air inflow and the air inflow are inconvenient to adjust simultaneously in the cooking process, in practice, the gas valve is usually directly adjusted to be the maximum, and in the cooking process, the air inlet valve is only needed to be adjusted by one hand or knee to adjust the fire, but in such a way, when the air inlet valve is not opened to be the maximum, the air amount is not matched with the air amount, so that the gas cannot be fully combusted, and toxic CO and pungent taste are discharged, and the gas is easy to cause harm to human body.

In order to solve the above-mentioned problem, therefore, in the prior art, the wrench of the ball valve is connected with the wrench of the rotary valve through the linkage, so that the ball valve can be synchronously rotated, and the rotary valve can be synchronously opened only by rotating the wrench of the ball valve, but such a mode still has the following disadvantages:

1. From the foregoing description, it can be known that the wrench of the ball valve has a section of virtual position at the initial stage, so when the wrench of the ball valve and the wrench of the rotary valve synchronously rotate, the ball valve is not yet opened after the rotary valve is opened, and when the ball valve is just opened, the rotary valve is opened by a certain angle, and the air inlet amount is larger than the air inlet amount, so that the manner is not suitable for opening small fire, when the small fire is opened, the rotation angle of the wrench of the ball valve and the rotation angle of the rotary valve are small, the air amount is larger than the air amount, so that virtual fire is easily formed, even flame is extinguished, and the flame can leave the stove plate, so that the combustion temperature is reduced;

2. And because the gas through hole on the ball valve adjusting ball is usually circular, when the spanner of the ball valve is rotated at a constant speed, the speed of opening the gas through hole is gradually increased, so that the gas quantity is increased more and more rapidly in a linkage mode, the air quantity is gradually increased, the air quantity is increased at a speed smaller than the air quantity, and the air quantity is larger than the air quantity, so that toxic CO and pungent taste are insufficiently discharged due to gas combustion in time, and the human body is injured.

Disclosure of utility model

In order to solve the defects in the prior art, the utility model provides a gas furnace gas quantity and air quantity regulating device by utilizing a cam, which enables a ball valve for air inlet to be matched with a rotary valve for air inlet to be opened in steps and speed, so that the air input and the air input tend to be matched, and the combustion is more sufficient.

In order to achieve the technical effects, the utility model adopts the following scheme:

the utility model provides a gas furnace tolerance and air regulation device utilizing cam, including installing the intake pipe of ball valve and installing the air-supply line of rotary valve, be connected with spanner I through pivot I on the outer wall of ball valve, be connected with the rotating member through pivot II on the outer wall of rotary valve, spanner I is used for the linkage through coupling mechanism with rotating member, coupling mechanism includes adjustment cam, dwang and linkage piece, adjustment cam is last to have the installation department, adjustment cam passes through installation department fixed mounting on pivot I, the center of rotation of pivot I overlaps with the center of installation department, one side of adjustment cam has arc portion I, arc portion II and arc portion III that set up in succession, the centre of a circle of arc portion I and arc portion III all overlaps with the center of rotation of installation department, the radius of arc portion I is less than the radius of arc portion III, be connected through arc portion II between arc portion I and the arc portion III, the dwang is located one side that adjustment cam is equipped with three sections arc portion, the one end rotation of dwang is installed on the intake pipe, be equipped with initial butt portion under the butt portion, the butt is equipped with the butt portion with the rotation piece under the butt in the connecting piece, the other end.

The preferred technical scheme, rotate on the butt portion and be equipped with the gyro wheel, the butt portion is contradicted on arc portion I through the gyro wheel.

The preferable technical scheme, the linkage piece includes sleeve pipe and wire rope, wire rope passes intraductally, sheathed tube both ends are fixed mutually with intake pipe and air-supply line respectively, wire rope's both ends are connected with dwang and rotation piece respectively, the rotation piece is connected with reset structure.

The preferred technical scheme, installing support II on the air-supply line, have the through-hole II that supplies pivot II to pass through on the support II, the piece that rotates is spanner II, the sleeve pipe is fixed on support II, wire rope and spanner II's end-to-end connection.

The preferred technical scheme, fixed two stopper that are equipped with on the support, two stopper are located the both sides of spanner II respectively.

The preferred technical scheme, reset structure includes torsional spring I, I cover of torsional spring is established in pivot II, the rocking arm and the support fixed connection of I one end of torsional spring, the other end and the spanner II fixed connection of rocking arm.

The preferred technical scheme, the fixed box that shields that is equipped with on the air-supply line, it is equipped with the lid to shield the box upper seal, it has the through-hole II that supplies pivot II to pass through to shield the box, the rotating member is a circular shape carousel, carousel fixed mounting is in the pivot, the bottom that shields the box has the mounting hole I that runs through the setting, sheathed tube one end is fixed in mounting hole I, wire rope and the side fixed connection of carousel.

The preferred technical scheme, the side of carousel is equipped with spacing opening, shielding the box internal fixation and being equipped with spacing post, spacing post is located spacing opening.

The preferred technical scheme, reset structure is torsional spring II, torsional spring II cover is established on pivot II, the rocking arm of torsional spring II one end is connected with shielding the box, the rocking arm of torsional spring II other end is connected with the carousel.

The preferable technical scheme, the dwang passes through support I and installs in the intake pipe, support I includes diaphragm, riser I and riser II, the diaphragm level sets up, be equipped with the mounting hole II that is used for the ball valve to pass through on the diaphragm, one side up vertical extension of diaphragm forms riser I, the opposite side down vertical extension of diaphragm forms riser II, the lower extreme of riser is equipped with the supporting part, have mounting hole III on the supporting part, sheathed tube one end is fixed in mounting hole III, be equipped with two intervals on the lateral surface of riser I and the rotation portion that the level set up, rotate between two rotation portions and install a connecting rod, the one end of connecting rod passes behind the rotation portion that corresponds and is connected with the dwang, the dwang passes through the connecting rod and rotates to be installed on support I.

Compared with the prior art, the beneficial effects are as follows:

1. The round shape of the arc-shaped part I on the regulating cam is overlapped with the rotation center of the regulating cam, when the wrench I starts to rotate, the abutting part of the rotating rod slides on the arc-shaped part I, so that the rotating rod cannot rotate, and the rotary valve on the air inlet pipe cannot be driven to start to open through the rotation of the rotating rod when the wrench I rotates in a virtual position, when the abutting part starts to slide on the arc-shaped part II, the ball valve starts to open, and the rotating rod starts to rotate, and the rotary valve is driven to start to open, therefore, through the design, the rotary valve and the ball valve can be synchronously opened, air inlet and air inlet are matched, and virtual fire and flameout cannot be formed in an initial stage and when a small fire is started;

2. Through the butt portion sliding on arc portion II, at the gas through-hole faster and faster opening in-process of ball valve, can drive the rotation pole faster and faster to drive the faster and faster opening of rotary valve, consequently be that air input and intake tend to the adaptation all the time, guaranteed that the gas is fully burnt, reduced CO's emission.

Drawings

FIG. 1 is a schematic illustration of a partial cross-section of a ball valve of the prior art;

FIG. 2 is a schematic partial cross-sectional view of a rotary valve of the prior art;

FIG. 3 is a schematic diagram of the structure of the present utility model;

FIG. 4 is a schematic view of a portion of the structure of FIG. 3;

FIG. 5 is a schematic view of an adjustment cam configuration in accordance with the present utility model;

FIG. 6 is a schematic view of the structure of a bracket I in the utility model;

FIG. 7 is a schematic view of the structure of a bracket II in the utility model.

Reference numerals: 1. a ball valve; 2. a ventilation duct; 3. an adjusting ball; 4. a gas through hole; 5. rotating the valve; 6. rotating the adjusting plate; 7. a spanner I; 8. an adjusting cam; 801. an arc-shaped part I; 802. an arc-shaped part II; 803. an arc-shaped part III; 9. a rotating lever; 10. a bracket I; 1001. a cross plate; 1002. a vertical plate I; 1003. a vertical plate II; 1004. a rotating part; 1005. a connecting rod; 1006. mounting holes III; 11. a roller; 12. a sleeve; 13. a wire rope; 14. a shielding box; 15. a rotating shaft I; 16. a rotating shaft II; 17. a turntable; 18. limit notch; 19. a limit column; 20. a bracket II; 21. a spanner II; 22. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

The utility model provides a gas furnace tolerance and air quantity adjusting device utilizing cam, includes the intake pipe of installing ball valve 1 and installs the air-supply line of rotary valve 5, and the intake pipe is used for carrying gas, and the air-supply line is used for carrying air, be connected with spanner I7 through pivot I15 on the outer wall of ball valve 1, the valve rod I of ball valve 1 is connected to pivot I15, and rotation spanner I7 passes through pivot I15 and drives the spherical adjusting ball 3 rotation of ball valve 1 with valve rod I, be connected with the rotating member through pivot II 16 on the outer wall of rotary valve 5, pivot II 16 is connected with valve rod II of rotary valve 5, rotates the rotating member and passes through pivot II 16 and valve rod II and drives the rotation regulating plate 6 rotation of rotary valve 5;

The spanner I7 is connected with the rotating piece through the connecting mechanism for linkage, and the rotating spanner I7 can drive the rotating piece to rotate, so that the air inlet quantity and the air inlet quantity can be simultaneously regulated when the fire intensity is regulated, and compared with the traditional method for respectively regulating the air inlet quantity and the air inlet quantity, the convenience is improved;

The connecting mechanism comprises an adjusting cam 8, a rotating rod 9 and a linkage piece, wherein the adjusting cam 8 is provided with an installation part, the adjusting cam 8 is fixedly installed on a rotating shaft I15 through the installation part, the rotating center of the rotating shaft I15 is overlapped with that of the installation part, the installation part is provided with a square hole, the rotating shaft I15 is provided with a section of square part and is matched with the square hole, and the adjusting cam 8 is hung on the rotating shaft I15 through the square hole and is fixed in a conventional manner, such as welding, bolt fixing and the like;

One side of the adjusting cam 8 is provided with an arc portion I801, an arc portion II 802 and an arc portion III 803 which are continuously arranged, the centers of the arc portions I801 and III 803 are overlapped with the center of the installation portion, the radius of the arc portion I801 is smaller than that of the arc portion III 803, the arc portion I801 and the arc portion III 803 are connected through the arc portion II 802, the arc portion I801 and the arc portion II 802 are in transition arrangement, the arc portion II 802 and the arc portion III 803 are in transition arrangement, the rotating rod 9 is located on one side of the adjusting cam 8, which is provided with three sections of arc portions, one end of the rotating rod 9 is rotatably arranged on an air inlet pipe, an abutting portion is arranged on the rotating rod 9, in an initial state, the abutting portion abuts against the arc portion I801, the rotating rod 9 is adjusted to rotate through the adjusting cam 8, and the other end of the rotating rod 9 is connected with the rotating piece through a linkage piece and used for pulling the rotating piece during rotation.

The position of the arc-shaped part I801, which is initially contacted with the abutting part, is set as a point a, the joint of the arc-shaped part I801 and the arc-shaped part II 802 is set as a point b, the joint of the arc-shaped part II 802 and the arc-shaped part III 803 is set as a point c, an included angle alpha formed by connecting the point a, the circle center and the point b is set to be 10-13 degrees according to different specifications of the selected ball valve 1, and an included angle beta formed by connecting the point b, the circle center and the point c is set to be 50-70 degrees, so that when the abutting part slides to the point b, the regulating ball 3 in the ball valve 1 rotates to the critical position to be opened, and when the abutting part slides to the point c, the regulating ball 3 in the ball valve 1 rotates to the maximum opened state.

Because the radius of the arc part III 803 is larger than that of the arc part I801, the arc part II 802 is gradually far away from the circle centers of the arc part I801 and the arc part III 803 in the process of extending from the point b to the point c, and the arc part II 802 can be regarded as a part of an eccentric circle taking the circle centers of the arc part I801 and the arc part III 803 as the rotation center, so that the rotating speed of the rotating rod 9 is gradually increased in the process of sliding the abutting part on the arc part II 802 from the point b to the point c, thereby the opening speed of the rotating adjusting plate 6 in the rotary valve 5 is gradually increased, the opening speed of the rotating adjusting plate is matched with the opening speed of the ball valve 1, and the air inlet amount always tend to be matched.

The wrench I7 is rotated, the adjusting cam 8 is driven to rotate through the rotating shaft I15, the abutting part firstly slides to the joint of the arc-shaped part I801 and the arc-shaped part II 802 against the edge of the arc-shaped part I801, in the process, the ball body adjusting ball 3 in the ball valve 1 starts to rotate, and when the abutting part reaches the joint of the arc-shaped part I801 and the arc-shaped part II 802, the channel on the adjusting ball 3 rotates to an opened critical point; continuing to rotate spanner I7, butt portion begins to slide along the border of arc portion II 802, and this in-process regulating ball 3 continues to rotate, and the passageway on it opens gradually to dwang 9 begins to rotate simultaneously, drives the rotation piece through the linkage and rotates and open rotary valve 5, makes ball valve 1 and rotary valve 5 open in step, and can keep ball valve 1 and rotary valve 5 open the speed and tend to the uniformity.

The preferred technical scheme, rotate on the butt portion and be equipped with gyro wheel 11, the butt portion is contradicted on arc portion I801 through gyro wheel 11, is convenient for the butt portion to slide on arc portion I801 and arc portion II 802 through gyro wheel 11.

The preferable technical scheme, the linkage piece includes sleeve pipe 12 and wire rope 13, wire rope 13 passes in the sleeve pipe 12, the both ends of sleeve pipe 12 are fixed with intake pipe and air-supply line respectively, the both ends of wire rope 13 are connected with dwang 9 and rotation piece respectively, and when rotating through dwang 9, through wire rope 13 pulling rotation piece synchronous rotation together, rotation piece is connected with reset structure, when needing to close the fire and transfer little fire, gyration spanner I7, rotation piece is through reset structure drive reply.

The preferred technical scheme, fixed shielding box 14 that is equipped with on the air-supply line, shielding box 14 is last to be sealed to be equipped with the lid, shielding box 14 has the through-hole II that supplies pivot II 16 to pass through, the rotating member is a circular shape carousel 17, carousel 17 fixed mounting is in the pivot, shielding box 14's bottom has the mounting hole I that runs through the setting, the one end of sleeve pipe 12 is fixed in mounting hole I, and the tip of sleeve pipe 12 is provided with screwed pipe I, installs two nuts I on the screwed pipe I, passes the both sides of mounting hole I with screwed pipe I after, and two nuts I are located the both sides of mounting hole I respectively and lock, wire rope 13 and the side fixed connection of carousel 17.

Since water is spilled during a cleaning operation in the kitchen, water is prevented from entering the sleeve 12 in this way.

According to the preferred technical scheme, a limit notch 18 is formed in the side edge of the rotary disc 17, a limit column 19 is fixedly arranged in the shielding box 14, the limit column 19 is positioned in the limit notch 18, the limit notch 18 has a certain length, and two ends of the limit notch 18 are respectively provided with two limits of rotation of the rotary disc 17; the reset structure is a torsion spring II, the torsion spring II is sleeved on a rotating shaft II 16, a rotating arm at one end of the torsion spring II is connected with the shielding box 14, and a rotating arm at the other end of the torsion spring II is connected with a rotating disc 17.

According to the preferable technical scheme, a support II 20 is arranged on the air inlet pipe, a through hole II for a rotating shaft II 16 to pass through is formed in the support II 20, the rotating piece is a wrench II 21, the sleeve 12 is fixed on the support II 20, and the steel wire rope 13 is connected with the tail end of the wrench II 21.

According to the preferred technical scheme, two limiting blocks 22 are fixedly arranged on the support II 20, the two limiting blocks 22 are respectively located on two sides of the wrench II 21, and the two limiting blocks 22 are respectively located at the maximum and minimum positions of rotation of the wrench II 21, so that excessive rotation of the wrench II 21 is avoided; the reset structure comprises a torsion spring I, the torsion spring I is sleeved on a rotating shaft II 16, a rotating arm at one end of the torsion spring I is fixedly connected with a support, the other end of the rotating arm is fixedly connected with a wrench II 21, and the rotating arm I can be fixed in a welding mode or is provided with a clamping seam, and the rotating arm of the torsion spring I is clamped in the clamping seam to be fixed.

The preferable technical scheme, dwang 9 passes through support I10 and installs in the intake pipe, support I10 includes diaphragm 1001, riser I1002 and riser II 1003, the diaphragm 1001 level sets up, be equipped with the mounting hole II that is used for ball valve 1 to pass through on the diaphragm 1001, one side up vertical extension of diaphragm 1001 forms riser I1002, the opposite side down vertical extension of diaphragm 1001 forms riser II 1003, the lower extreme of riser is equipped with the supporting part, have mounting hole III 1006 on the supporting part, the one end of sleeve pipe 12 is fixed in mounting hole III 1006, be equipped with two intervals and horizontally arranged rotation portion 1004 on the lateral surface of riser I1002, rotate between two rotation portions 1004 and install a connecting rod 1005, the one end of 1005 connecting rod passes behind the corresponding rotation portion 1004 and is connected with dwang 9, dwang 9 passes through connecting rod 1005 and rotates the installation on support I10.

The riser I1002 all adopts the metal material with diaphragm 1001, and dwang 9 installs on riser I1002, through pulling riser I1002, can adjust the initial butt portion and contradict the position on arc portion I801, can adjust the angle size of the contained angle that a point, centre of a circle and b point three-point connection formed promptly through this structure to satisfy different demands.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (10)

1. The utility model provides a gas furnace tolerance and air regulation device utilizing cam, its characterized in that, including installing the intake pipe of ball valve (1) and installing the air-supply line of rotary valve (5), be connected with spanner I (7) through pivot I (15) on the outer wall of ball valve (1), be connected with the rotation piece through pivot II (16) on the outer wall of rotary valve (5), spanner I (7) are connected through coupling mechanism with the rotation piece and are used for the linkage, coupling mechanism includes adjustment cam (8), dwang (9) and linkage piece, have the installation department on adjustment cam (8), adjustment cam (8) are through installation department fixed mounting on pivot I (15), the rotation center of pivot I (15) overlaps with the center of installation department, one side of adjustment cam (8) has arc portion I (801), arc portion II (802) and arc portion III (803) that set up in succession, the centre of a circle of arc portion I (803) and arc portion III (803) overlap with the rotation center of installation department, the radius portion I (801) is less than the radius (803) of arc portion I (803) is located between arc portion (803) and arc portion (803) are equipped with arc portion III (803) and arc portion (803) are located through the radius (803) of installation department (803), one end of the rotating rod (9) is rotatably arranged on the air inlet pipe, an abutting part is arranged on the rotating rod (9), the abutting part abuts against the arc-shaped part I (801) in an initial state, and the other end of the rotating rod (9) is connected with the rotating piece through a linkage piece and used for pulling the rotating piece.

2. A gas burner air quantity and air quantity regulating device using a cam according to claim 1, wherein a roller (11) is rotatably arranged on the abutting part, and the abutting part is abutted against the arc-shaped part I (801) through the roller (11).

3. The gas stove air quantity and air quantity adjusting device utilizing a cam according to claim 1, wherein the linkage piece comprises a sleeve (12) and a steel wire rope (13), the steel wire rope (13) penetrates through the sleeve (12), two ends of the sleeve (12) are respectively fixed with the air inlet pipe and the air inlet pipe, two ends of the steel wire rope (13) are respectively connected with a rotating rod (9) and the rotating piece, and the rotating piece is connected with a reset structure.

4. A gas burner air quantity and air quantity regulating device using a cam according to claim 3, characterized in that a bracket ii (20) is installed on the air inlet pipe, a through hole ii for a rotating shaft ii (16) to pass through is formed in the bracket ii (20), the rotating member is a wrench ii (21), the sleeve (12) is fixed on the bracket ii (20), and the steel wire rope (13) is connected with the tail end of the wrench ii (21).

5. The gas stove air quantity and air quantity adjusting device utilizing the cam according to claim 4, wherein two limiting blocks (22) are fixedly arranged on the support, and the two limiting blocks (22) are respectively positioned on two sides of the wrench II (21).

6. The gas stove air quantity and air quantity adjusting device utilizing a cam according to claim 4, wherein the reset structure comprises a torsion spring I, the torsion spring I is sleeved on a rotating shaft II (16), a rotating arm at one end of the torsion spring I is fixedly connected with a bracket, and the other end of the rotating arm is fixedly connected with a wrench II (21).

7. A gas stove air quantity and air quantity regulating device utilizing a cam as claimed in claim 3, wherein a shielding box (14) is fixedly arranged on the air inlet pipe, a box cover is arranged on the shielding box (14) in a sealing manner, the shielding box (14) is provided with a through hole II for a rotating shaft II (16) to pass through, the rotating member is a circular rotating disc (17), the rotating disc (17) is fixedly arranged on the rotating shaft, a mounting hole I penetrating through the bottom of the shielding box (14) is formed, one end of the sleeve (12) is fixed in the mounting hole I, and the steel wire rope (13) is fixedly connected with the side edge of the rotating disc (17).

8. The gas stove air quantity and air quantity adjusting device utilizing the cam according to claim 7, wherein a limit notch (18) is formed in the side edge of the rotary disc (17), a limit column (19) is fixedly arranged in the shielding box (14), and the limit column (19) is located in the limit notch (18).

9. The gas stove air quantity and air quantity regulating device utilizing cams according to claim 7, wherein the reset structure is a torsion spring II, the torsion spring II is sleeved on a rotating shaft II (16), a rotating arm at one end of the torsion spring II is connected with a shielding box (14), and a rotating arm at the other end of the torsion spring II is connected with a rotating disc (17).

10. A gas burner air quantity and air quantity regulating device using cams according to claim 3, characterized in that the rotating rod (9) is mounted on the air inlet pipe through a bracket i (10), the bracket i (10) comprises a transverse plate (1001), a vertical plate i (1002) and a vertical plate ii (1003), the transverse plate (1001) is horizontally arranged, a mounting hole ii for the ball valve (1) to pass through is formed in the transverse plate (1001), one side of the transverse plate (1001) vertically extends upwards to form a vertical plate i (1002), the other side of the transverse plate (1001) vertically extends downwards to form a vertical plate ii (1003), a supporting part is arranged at the lower end of the vertical plate, a mounting hole iii (1006) is formed in the supporting part, one end of the sleeve (12) is fixed in the mounting hole iii (1006), two spaced and horizontally arranged rotating parts (1004) are arranged on the outer side surface of the vertical plate i (1002), a connecting rod (1005) is rotatably mounted between the two rotating parts (1004), one end of the connecting rod (1005) passes through the corresponding rotating part (1004) and then vertically extends downwards to form a vertical plate ii (1003), the lower end of the connecting rod (9) is rotatably connected with the rotating rod (10) through the bracket i.