CN219693324U

CN219693324U - Gas stove

Info

Publication number: CN219693324U
Application number: CN202320305612.6U
Authority: CN
Inventors: 肖桂菀; 徐强
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-09-15
Anticipated expiration: 2033-02-22

Abstract

The utility model relates to a gas stove, which comprises a chassis, a burner and an injection pipe, wherein a first opening for primary air to enter is formed in the air inlet end of the injection pipe, and the gas stove is characterized in that: the utility model has the advantages that two openings for entering primary air are arranged, a spacing part is formed between the first openings for entering adjacent primary air, a nozzle seat connected with a gas pipe for providing gas for a burner is arranged in the spacing part, the nozzle seat is connected with a nozzle, and an air regulating plate is also arranged on the nozzle seat, compared with the prior art, the utility model has the advantages that: the plate body of the air regulating plate can be driven to rotate through the driving mechanism arranged on the chassis, so that the staggered area between the second opening of the plate body and the first opening of the injection pipe can be changed through the rotation of the plate body of the air regulating plate, the primary air quantity can be adaptively regulated according to the pressure before the fuel gas is injected to the nozzle, the matching of the fuel gas and the primary air is achieved, and the combustion is complete.

Description

Gas stove

Technical Field

The utility model relates to the field of gas cookers, in particular to a gas cooker with combustion efficiency adjusting function.

Background

A general burner in the related art includes a gas valve which adjusts a pressure of gas supplied to the burner, a nozzle which injects the gas supplied through the gas valve, a mixed gas inlet through which the gas ejected from the nozzle is mixed and supplied, an inner space of the burner, to which the mixed gas supplied through the mixed gas inlet is supplied, and a fire cover including a plurality of fire holes to inject the mixed gas supplied to the inner space to the combustion chamber. When the load amount required by the combustion device is large, the gas valve is controlled so that the gas is supplied to the combustion chamber under high pressure, thereby achieving the purpose of high output of the burner. On the contrary, when the load amount required by the combustion device is small, the gas valve is controlled so that the gas is supplied to the combustion chamber under low pressure, thereby achieving the purpose of low output of the burner. But has problems in that: the air quantity of primary air entering the nozzle cannot be adjusted according to the load quantity required by the combustion device, namely, the adjustment of the air quantity of the primary air and the air quantity of the primary air is realized, so that the matching of the fuel gas and the air is realized, and the combustion is sufficient.

In addition, generally, according to a method of burning a gas fuel in a gas boiler, such as a premix burner, gas and air are premixed in a mixing ratio optimal for combustion and then supplied to a fire hole surface to be burned. That is, after the mixed gas of the fuel gas and the air injected from the nozzle of the fuel gas injection port flows into the mixing chamber, the mixed gas is supplied to the combustion chamber through the fire hole and burned in the combustion chamber. A typical burner in the related art includes a gas valve which adjusts a pressure of gas supplied to the burner, a nozzle which injects the gas supplied through the gas valve, a mixed gas inlet through which the gas ejected from the nozzle is mixed and supplied, an inner space of the burner, to which the mixed gas supplied through the mixed gas inlet is supplied, and a fire cover including a plurality of fire holes to inject the mixed gas supplied to the inner space to the combustion chamber. When the load amount required by the combustion device is large, the gas valve is controlled so that the gas is supplied to the combustion chamber under high pressure, thereby achieving the purpose of high output of the burner. On the contrary, when the load amount required by the combustion device is small, the gas valve is controlled so that the gas is supplied to the combustion chamber under low pressure, thereby achieving the purpose of low output of the burner.

Since the output of the fuel gas will control the opening size of the fuel gas valve along with the load amount required by the combustion device, further improvement is needed how to realize the matching of the primary air and the fuel gas amount controlled by the fuel gas valve.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a gas stove capable of improving the matching capability of gas and primary air according to the combustion load.

The technical scheme adopted for solving the technical problems is as follows: the gas stove comprises

A chassis;

the burner is arranged in the chassis and comprises an injection pipe, and a first opening for primary air to enter is formed in the air inlet end of the injection pipe;

the method is characterized in that: the first openings for the primary air to enter are two, a spacing part is formed between the adjacent first openings for the primary air to enter, a nozzle seat connected with a gas pipe for providing gas for a burner is arranged in the spacing part, the nozzle seat is connected with a nozzle, and an air regulating plate is also arranged on the nozzle seat and comprises a plate body, and the center of the plate body is provided with a through hole for the nozzle seat to pass through and a second opening corresponding to the first opening for the primary air to enter; the gas valve is arranged on the chassis and used for supplying gas to the gas stove, the valve rod in the gas valve is also coaxially connected with a transmission mechanism, the transmission mechanism can transmit the plate body of the air regulating plate to rotate, and the staggered area between the second opening of the plate body and the first opening of the injection pipe is changed, so that the primary air quantity is adaptively regulated according to the pressure before the gas is injected to the nozzle.

Because the ejector pipe is parallel to the chassis in the horizontal direction, the rotation of the plate body needs to be regulated to have a driving force in the vertical direction, and in order to avoid interference with the gas pipe, the plate body of the gas regulating plate is required to realize circumferential rotation in the vertical direction, preferably, the transmission mechanism comprises a first transmission mechanism coaxially connected with a valve rod in the gas valve and a second transmission mechanism for converting the power of the first transmission mechanism rotating in the horizontal direction into the power of the second transmission mechanism for enabling the plate body of the gas regulating plate to rotate in the circumferential direction in the vertical direction.

In order to realize the connection between the first transmission mechanism and the second transmission mechanism, preferably, the first transmission mechanism comprises a first connecting rod and a second connecting rod, wherein the middle part of the first connecting rod is hinged with a first pin shaft parallel to a valve rod in the gas valve, and the tail end of the second connecting rod is connected with a connecting part for connecting the second transmission mechanism.

Further, the second transmission mechanism comprises a driven gear and a driving gear which are meshed, a first meshing part meshed with the driven gear is arranged on the periphery of the plate body, and the connecting part is provided with a second meshing part meshed with the driving gear.

In order to accommodate a rotation of the valve stem of the gas valve, typically between 0 ° and 90 °, i.e. a change between a big fire and a small fire, the connection is preferably guided in its movement in the horizontal direction by means of a guide bracket provided on the chassis.

Further, the guide support comprises a first supporting rod, a second supporting rod and a horizontal rod, wherein the first supporting rod and the second supporting rod are coaxially arranged with a valve rod in the gas valve, the horizontal rod is connected with the first supporting rod and the second supporting rod, and the connecting part is provided with a guide hole capable of moving along the horizontal rod. The guide hole of the connecting part can move along the horizontal rod, so that the guide hole can synchronously move along with the rotation of the valve rod of the gas valve, and the plate body of the air regulating plate is driven to rotate by the second transmission mechanism.

In order to be able to be used in a fitting manner in a manner matching with various gas valves, the first connecting rod of the first transmission mechanism is not directly connected coaxially with the valve rod in the gas valve, preferably, the gas valve is provided with a second pin shaft adjacent to the valve rod in parallel, the second pin shaft is provided with a sleeve part sleeved on the valve rod, the second pin shaft is clamped with a connecting frame, and the first transmission mechanism rotates in the horizontal direction by virtue of the connecting frame.

Further, the connecting frame comprises a bottom wall adjacent to the gas valve, a first side wall far away from the top wall of the gas valve, a second side wall connecting the bottom wall and the top wall and adjacent to the first connecting rod, and a second side wall opposite to the first side wall, the bottom wall of the connecting frame is provided with a first opening for the head of the second pin shaft to pass through, the wall of the first opening is clamped on the second pin shaft, and the first side wall is provided with a second opening for the first connecting rod of the first transmission mechanism to pass through. The first connecting rod is connected to the connecting frame through the second opening by rotating the connecting frame, so that the first connecting rod is driven to rotate, and then the transmission of the first transmission mechanism and the second transmission mechanism is realized.

In order to realize connection between the first connecting rod and the chassis after passing through the connecting frame, preferably, the first connecting rod extends to the chassis at the connecting end of the second pin shaft, the extending section is hinged on the chassis through a third pin shaft parallel to the valve rod, correspondingly, a base platform for the third pin shaft is arranged on the chassis, and a third opening for the extending section of the first connecting rod to extend is formed in the second side wall.

Compared with the prior art, the utility model has the advantages that: the plate body of the air regulating plate can be driven to rotate through the driving mechanism arranged on the chassis, so that the staggered area between the second opening of the plate body and the first opening of the injection pipe can be changed through the rotation of the plate body of the air regulating plate, the primary air quantity can be adaptively regulated according to the pressure before the fuel gas is injected to the nozzle, the matching of the fuel gas and the primary air is achieved, and the combustion is complete.

Drawings

FIG. 1 is a schematic view of a gas stove according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the valve stem of the gas valve in the 0 degree position according to the embodiment of the present utility model;

FIG. 3 is a schematic view of the valve stem of the gas valve in a 90 position according to an embodiment of the present utility model;

FIG. 4 is a schematic structural diagram of a connection frame according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a damper according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the structure of an ejector tube in an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 6, the present utility model is a preferred embodiment. The gas stove in this embodiment includes a chassis 1, a burner 2 disposed in the chassis 1, and an ejector tube 3, where a first opening 31 for primary air to enter is provided at an air inlet end of the ejector tube 3, two first openings 31 for primary air to enter are provided, a partition portion 32 is formed between the first openings 31 for adjacent primary air to enter, a nozzle seat 4 connected to the gas tube for providing gas to the burner 2 is disposed in the partition portion 32, a nozzle is connected to the nozzle seat 4, and a damper 5 is further disposed on the nozzle seat 4, the damper 5 includes a plate body, a through hole 51 for passing through the nozzle seat 4 and a second opening 52 corresponding to the first opening 31 for primary air to enter are provided in the center of the plate body, and a gas valve 6 disposed on the chassis 1 and used for gas supply of the gas stove is further coaxially connected to a transmission mechanism, the transmission mechanism is capable of transmitting the plate body of the damper 5 to rotate, and the second opening 52 of the plate body and the first opening 31 of the ejector tube 3 are further provided with a damper 5, and the air quantity is adapted to the air quantity before being injected to the nozzle according to the staggered area of the gas. The plate body of the air regulating plate 5 can be driven to rotate by the driving mechanism arranged on the chassis 1, so that the staggered area between the second opening 52 of the plate body and the first opening 31 of the injection pipe 3 can be changed by the rotation of the plate body of the air regulating plate 5, the primary air quantity can be adaptively regulated according to the pressure before the fuel gas is injected to the nozzle, the matching of the fuel gas and the primary air is achieved, and the combustion is sufficient.

Specifically, since the ejector 3 is disposed in parallel in the horizontal direction with respect to the chassis 1, a driving force in the vertical direction is required for the rotation of the plate body to be regulated, and in order to avoid interference with the gas pipe, the plate body of the damper 5 is to be rotated in the circumferential direction in the vertical direction, the transmission mechanism of the present embodiment includes a first transmission mechanism 7 coaxially connected to the valve stem in the gas valve 6 and a second transmission mechanism 8 for converting the power of the rotation of the first transmission mechanism 7 in the horizontal direction into the rotation of the plate body of the damper 5 in the circumferential direction in the vertical direction, and in order to achieve the connection of the first transmission mechanism 7 and the second transmission mechanism 8, the first transmission mechanism 7 includes a first link 71 and a second link 72 hinged at the middle portion thereof by a first pin 20 parallel to the valve stem in the gas valve 6, and the end of the second link 72 is connected with a connecting portion 9 for connecting the second transmission mechanism 8. The second transmission mechanism 8 comprises a driven gear 81 and a driving gear 82 which are meshed, a first meshing part 53 meshed with the driven gear 81 is arranged on the periphery of the plate body, and the connecting part 9 is provided with a second meshing part 91 meshed with the driving gear 82. The connection 9 also needs to be guided in its movement in the horizontal direction by means of a guide bracket 10 provided on the chassis 1 to accommodate a rotation of the valve stem of the gas valve 6, typically between 0 ° and 90 °, i.e. a change between a big fire and a small fire; the guide bracket 10 further includes a first rod 101 and a second rod 102 coaxially provided with the valve stem in the gas valve 6, and a horizontal rod 103 connecting the first rod 101 and the second rod 102, and the connecting portion 9 is provided with a guide hole 92 movable along the horizontal rod 103. The guide hole 92 of the connecting part 9 can move along the horizontal rod 103, so that the guide hole can synchronously move along with the rotation of the valve rod of the gas valve 6, and the plate body of the air regulating plate 5 is driven to rotate by the second transmission mechanism 8.

When the valve rod of the gas valve 6 is at the position of 0 degrees, the connecting part 9 is positioned at the rightmost side of the horizontal rod 103, at the moment, the staggered area between the second opening 52 of the plate body of the air regulating plate 5 and the first opening 31 of the injection pipe 3 is minimum, and the primary air demand of the gas stove is also minimum when the gas stove is not in a cooking state, in addition, as the staggered area between the second opening 52 of the plate body of the air regulating plate 5 and the first opening 31 of the injection pipe 3 is minimum, insects entering the chassis 1 can be prevented from climbing into the air inlet end of the injection pipe 3;

when the valve rod of the gas valve 6 is at the 90 ° position, the connecting portion 9 moves to the leftmost side along the horizontal rod 103 under the transmission action of the first transmission mechanism 7, at this time, since the connecting portion 9 is meshed with the driving gear 82, and the periphery of the plate body of the gas regulating plate 5 is provided with the first meshing portion 53 meshed with the driven gear 81, through the meshed transmission of the driving gear 82 and the driven gear 81, the plate body of the gas regulating plate 5 can rotate around the nozzle seat 4 in the vertical circumferential direction, finally, the staggered area between the second opening 52 of the gas regulating plate 5 and the first opening 31 of the injection pipe 3 is the largest, and at this time, the gas stove is in the cooking state with the largest required firepower, and the demand of primary air is also the largest.

In order to be able to be used in a fitting manner in conjunction with various gas valves 6, the first connecting rod 71 of the first transmission mechanism 7 is not connected coaxially with the valve stem in the gas valve 6, wherein the gas valve 6 is provided with a second pin 11 in parallel adjacent to the valve stem, the second pin 11 is provided with a fitting portion 12 which is fitted over the valve stem, the second pin 11 is clamped with a connecting frame 13, and the first transmission mechanism 7 is rotated in the horizontal direction by means of the connecting frame 13. The connecting frame 13 includes a bottom wall 131 adjacent to the gas valve 6, a top wall 132 far from the gas valve 6, a first side wall 133 connecting the bottom wall 131 and the top wall 132 and adjacent to the first link 71, and a second side wall 134 opposite to the first side wall 133, the bottom wall 131 of the connecting frame 13 has a first opening 135 for the head of the second pin 11 to pass through, the wall of the first opening 135 is clamped on the second pin 11, and the first side wall 133 is provided with a second opening 136 for the first link 71 of the first transmission mechanism to pass through. Through the rotation of the connecting frame 13 and the connection of the first connecting rod to the connecting frame 13 through the second opening 136, the first connecting rod 71 is driven to rotate, and then the transmission of the first transmission mechanism 7 and the second transmission mechanism 8 is realized, the first connecting rod 71 continues to extend to the chassis 1 at the connecting end of the second pin shaft 11, the extending section is hinged to the chassis 1 through the third pin shaft 14 arranged in parallel with the valve rod, correspondingly, the chassis 1 is provided with the base 15 for the third pin shaft 14, the second side wall 134 is provided with the third opening 137 for the extending of the extending section of the first connecting rod 71, and thus the connection of the first connecting rod 71 with the chassis 1 after passing through the connecting frame 13 can be realized.

To sum up, when the valve rod of the gas valve 6 of the present gas is turned to 90 ° at 0 °, the first connecting rod 71 drives the second connecting rod 72 to rotate, so as to drive the connecting portion 9 to move from left to right along the horizontal rod 103, and simultaneously drive the driving gear 82 to drive the driven gear 81 to rotate in a meshed manner, and finally the driven gear 81 drives the plate body of the air adjusting plate 5 to rotate, so that the staggered area between the second opening 52 of the air adjusting plate and the first opening 31 of the injection pipe 3 is increased from small to large, and finally the primary air amount is adaptively adjusted according to the pressure before the gas is injected to the nozzle.

Claims

1. A gas stove comprises

A chassis (1);

the burner (2) is arranged in the chassis (1) and comprises an injection pipe (3), and a first opening (31) for primary air to enter is formed in the air inlet end of the injection pipe (3);

the method is characterized in that: the first openings (31) for entering the primary air are two, a spacing part (32) is formed between the adjacent first openings (31) for entering the primary air, a nozzle seat (4) connected with a gas pipe for providing gas for the burner (2) is arranged in the spacing part (32), the nozzle seat (4) is connected with a nozzle, the nozzle seat (4) is also provided with an air regulating plate (5), the air regulating plate (5) comprises a plate body, and a through hole (51) for the nozzle seat (4) to pass through and a second opening (52) corresponding to the first opening (31) for entering the primary air are arranged in the center of the plate body; the gas stove is characterized by further comprising a gas valve (6) which is arranged on the chassis (1) and used for supplying gas to a gas stove, wherein a valve rod in the gas valve (6) is also coaxially connected with a transmission mechanism, the transmission mechanism can drive the plate body of the air regulating plate (5) to rotate, and the staggered area between the second opening (52) of the plate body and the first opening (31) of the injection pipe (3) is changed, so that the primary air quantity is adaptively adjusted according to the pressure before the gas is injected into the nozzle.

2. The gas cooker as claimed in claim 1, wherein: the transmission mechanism comprises a first transmission mechanism (7) coaxially connected with a valve rod in the gas valve (6) and a second transmission mechanism (8) for converting the power of the first transmission mechanism (7) rotating in the horizontal direction into the second transmission mechanism (8) enabling the plate body of the air regulating plate (5) to rotate along the circumferential direction in the vertical direction.

3. The gas cooker as claimed in claim 2, wherein: the first transmission mechanism (7) comprises a first connecting rod (71) and a second connecting rod (72), wherein the middle part of the first connecting rod is hinged with a first pin shaft (20) parallel to a valve rod in the gas valve (6), and the tail end of the second connecting rod (72) is connected with a connecting part (9) for connecting the second transmission mechanism (8).

4. A gas cooker as claimed in claim 3, wherein: the second transmission mechanism (8) comprises a driven gear (81) and a driving gear (82) which are meshed, a first meshing part (53) meshed with the driven gear (81) is arranged on the periphery of the plate body, and the connecting part (9) is provided with a second meshing part (91) meshed with the driving gear (82).

5. The gas cooker as claimed in claim 4, wherein: the connection part (9) guides the movement of the chassis (1) in the horizontal direction by means of a guide bracket (10) arranged on the chassis.

6. The gas cooker as claimed in claim 5, wherein: the guide support (10) comprises a first supporting rod (101), a second supporting rod (102) and a horizontal rod (103) which are coaxially arranged with a valve rod in the gas valve (6) and are connected with the first supporting rod (101) and the second supporting rod (102), and the connecting part (9) is provided with a guide hole (92) which can move along the horizontal rod (103).

7. The gas range according to any one of claims 3 to 6, wherein: the gas valve (6) is adjacent to the valve rod and is provided with a second pin shaft (11) in parallel, the second pin shaft (11) is provided with a sleeved part (12) sleeved on the valve rod, the second pin shaft (11) is clamped with a connecting frame (13), and the first transmission mechanism (7) rotates in the horizontal direction by means of the connecting frame (13).

8. The gas cooker as set forth in claim 7, wherein: the connecting frame (13) comprises a bottom wall (131) adjacent to the gas valve (6), a top wall (132) far away from the gas valve (6), a first side wall (133) connecting the bottom wall (131) and the top wall (132) and adjacent to the first connecting rod (71), and a second side wall (134) opposite to the first side wall (133), the bottom wall (131) of the connecting frame (13) is provided with a first opening (135) for the head of a second pin shaft (11) to pass through, the hole wall of the first opening (135) is clamped on the second pin shaft (11), and a second opening (136) for the first connecting rod (71) of the first transmission mechanism to pass through is formed in the first side wall (133).

9. The gas cooker as set forth in claim 8, wherein: the first connecting rod (71) continues to extend towards the chassis (1) at the connecting end of the second pin shaft (11), the extending section is hinged on the chassis (1) through a third pin shaft (14) which is parallel to the valve rod, correspondingly, a base (15) which is used for the third pin shaft (14) to be arranged is arranged on the chassis (1), and a third opening (137) which is used for the extending section of the first connecting rod (71) to extend is formed in the second side wall (134).