CN112984576A

CN112984576A - Oil saving device for kitchen range

Info

Publication number: CN112984576A
Application number: CN202110225289.7A
Authority: CN
Inventors: 杨敏俊
Original assignee: Hangzhou Zunlong Catering Management Co ltd
Current assignee: Shandong Jinbaichuan Kitchen Technology Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-06-18
Anticipated expiration: 2041-03-01
Also published as: CN112984576B

Abstract

The invention discloses a stove oil saving device which comprises a controller, a laser transmitter, a laser receiver and a support ring arranged on a stove, wherein the controller is used for receiving a signal of the laser receiver and controlling the stove to be opened and closed, the laser transmitter and the laser receiver are distributed on two sides of the stove, a through hole penetrates through the outer wall of the support ring, and a signal sent by the laser transmitter penetrates through the through hole and is transmitted to the laser receiver.

Description

Oil saving device for kitchen range

Technical Field

The invention relates to the field of kitchen equipment, in particular to a stove oil saving device.

Background

The cooking utensils can be divided into household cooking utensils and Chinese food cooking utensils, wherein the Chinese food cooking utensils are mainly used as big cookers in schools, troops and large-scale unit canteens, and can be divided into fuel oil cooking utensils, gas cooking utensils, coal-fired cooking utensils and the like according to fuel, and also can be used as Chinese food cooking utensils which use alcohol group as fuel.

Chinese patent No. CN2727588Y discloses a fuel saving device for a stove, which comprises an oil-gas circuit connected with a burner, and a control valve installed on the oil-gas circuit to control fuel supply when the oil-gas circuit is in an open state or a slightly open state. Specifically, the method comprises the following steps: the infrared or laser emitter and the infrared or laser receiver are correspondingly arranged on two sides of the cooking range, and the electromagnetic valve, the light control button and the light receiver are connected to form a control loop; when infrared or laser emitted by the emitter is shielded by a wok on the stove, the receiver does not receive a signal, the photoelectric button does not work, the electromagnetic valve does not receive an instruction, the electromagnetic valve is in a normal state, and the stove burns normally; when the frying pan is far away from the cooker, the infrared or laser receiver receives the signal, the photoelectric button sends out an instruction, the electromagnetic valve receives the instruction and is in a slightly-opened state, and only a small amount of fuel enters the cooker to maintain the ignition state.

When the energy-saving device of the stove is used, when the wok leaves the stove, the stove is still in a continuous heating state even in a slightly opened state, but energy is still wasted, so that improvement is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an oil saving device for a stove, which has the effect of reducing resource waste.

The technical purpose of the invention is realized by the following technical scheme: a stove oil saving device comprises a controller, a laser transmitter, a laser receiver and a support ring arranged on a stove, wherein the controller is used for receiving a signal of the laser receiver and controlling the stove to be opened and closed;

the upper end surface of the support ring is vertically provided with a pair of sliding holes, one end of each sliding hole is communicated with the through hole, the inner wall of each sliding hole of the support ring is provided with a cavity, a delay control device capable of sensing whether a frying pan or a pan is placed on the support ring is arranged in each cavity, and a sliding rod capable of plugging the through hole is connected to the sliding hole between each delay control device and the through hole in a sliding mode; when the delay control device senses that the wok or the pan is separated from the support ring, the sliding rod can be controlled to delay leaving the through hole so as to keep the stove on when the wok is in a wok-up state; the sliding rod is made of metal iron or metal cobalt materials.

The present invention in a preferred example may be further configured to: the kitchen range is arranged on the table top of the kitchen range body, the laser emitter and the laser receiver are distributed at two ends of the table top, and the controller is arranged on the kitchen range body.

The present invention in a preferred example may be further configured to: the outer edge of the table top is provided with a circle of convex ring, and the laser emitter and the laser receiver are fixed on the upper end face of the convex ring.

The present invention in a preferred example may be further configured to: still including vertical set up in the backplate of mesa one side, the bulge loop deviates from one side horizontal sliding connection of backplate has the sliding seat, the vertical backing plate that is provided with on the sliding seat, the backing plate is circular-arc and both ends orientation the kitchen range direction is crooked.

The present invention in a preferred example may be further configured to: the table top is provided with a bucket and a seasoning box, the bucket and the seasoning box are positioned on one side of the table top close to the back plate and distributed at two ends of the table top.

The present invention in a preferred example may be further configured to: the seasoning box comprises a vertically arranged box body, the box body is in a cylindrical shape, a plurality of layers of arc-shaped sliding grooves are formed in the box body, a round drawer box is embedded in each layer of sliding grooves, one side of each drawer box is hinged to the box body, and a handle is arranged on the other side of each drawer box.

The present invention in a preferred example may be further configured to: the handle is provided with a signboard.

The present invention in a preferred example may be further configured to: the drawer box comprises a mounting ring and an accommodating box embedded in the mounting ring, wherein a circle of convex ring is arranged on the outer wall of the upper end of the accommodating box, and a circle of groove for embedding the convex ring is formed in the inner wall of the upper end of the mounting ring.

The present invention in a preferred example may be further configured to: the delay control device comprises a permanent magnet tube body arranged in a cavity, a conductive elastic piece is sleeved outside the permanent magnet tube body, a battery bin used for loading a battery is arranged inside the permanent magnet tube body, and a solenoid is arranged between the battery bin and the permanent magnet tube body;

the two ends of the conductive elastic part are respectively and fixedly connected with a first ferromagnetic block and a second ferromagnetic block, the first ferromagnetic block is positioned on the upper part of the second ferromagnetic block and can reciprocate in the cavity, the bottom of the second ferromagnetic block is fixedly connected with the inner wall of the cavity, one side of the second ferromagnetic block, far away from the first ferromagnetic block, is in magnetic attraction fit with the sliding rod, the upper part of the first ferromagnetic block is provided with a butting rod, and one end of the butting rod penetrates through the sliding hole to be externally contacted with a wok or a pan; the electric frying pan is characterized in that a moving contact is arranged on one side, away from the abutting rod, of the first ferromagnetic block, a static contact matched with the moving contact is arranged at one end, facing the moving contact, of the permanent magnet pipe body, the static contact is electrically connected with a positive electrode of a battery in the battery bin, one side of the moving contact is electrically connected with a solenoid through a conductive elastic part and a second ferromagnetic block, one end of the solenoid is electrically connected with a negative electrode of the battery in the battery bin, and when the abutting rod is not abutted to a frying pan or a pan, the moving contact and the static contact still have an interval.

In conclusion, the invention has the following beneficial effects:

1. through the cooperation of the signal emitter and the signal inductor, the information of whether the frying pan is placed on the stove is fed back to the controller, and the opening and closing of the stove are controlled through the controller, so that when the frying pan is separated from the stove, the stove is in a closed state, the energy waste is reduced, and the effect of saving energy is achieved;

2. through the matching of the sliding rod and the sliding hole, the shielding and the opening of the through hole are realized, so that the frying stove can be matched with a frying pan and a flat-bottom pan, and the adaptability of the frying stove is improved;

3. the seasoning box capable of conveniently taking and placing seasonings is arranged on the table top, so that a cook can use seasonings more easily and conveniently, and the convenience of the cook in working is improved;

4. store the condiment of difference through setting up multilayer drawer box, simultaneously through setting up convertible drawer box for the process of taking of condiment is more convenient.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic view of the range of the first embodiment;

fig. 3 is a partial enlarged view at a in fig. 2;

FIG. 4 is a schematic structural view of a seasoning box according to the first embodiment;

fig. 5 is a schematic structural view of a drawer box according to the first embodiment;

FIG. 6 is a schematic structural view of a range of the second embodiment;

fig. 7 is a partially enlarged view at B in fig. 6.

Reference numerals: 1. a stove body; 11. a controller; 2. a table top; 21. a convex ring; 22. a sliding seat; 23. a base plate; 24. a laser transmitter; 25. a laser receiver; 3. a cooking range; 4. a back plate; 41. a faucet; 5. a support ring; 51. a through hole; 52. a slide hole; 53. a slide bar; 54. a cavity; 55. a spring; 56. a reset plate; 6. a water bucket; 7. a seasoning box; 71. a box body; 72. a chute; 73. a drawer box; 74. a handle; 75. a signboard; 76. a mounting ring; 77. accommodating the box; 78. a convex ring; 79. a groove; 8. a delay control device; 81. a permanent magnet tube body; 82. a conductive elastic member; 83. a battery compartment; 84. a solenoid; 85. a first ferromagnetic block; 86. a second ferromagnetic block; 87. a butting rod; 88. a moving contact; 89. and (7) carrying out static contact.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1, the stove oil saving device comprises a controller 11, a laser emitter 24 and a laser receiver 25, wherein the controller 11 is used for receiving a signal of the laser receiver 25 and controlling the stove 3 to be opened and closed, the stove 3 is arranged at the center of a table top 2 of a stove body 1, and a back plate 4 is arranged on one side of the table top 2.

As shown in fig. 1, a circle of convex ring 21 is arranged at the outer edge of the table top 2, the cooking range 3 is positioned inside the convex ring 21, a circle of support ring 5 is further arranged on the cooking range 3, the inner wall of the support ring 5 is obliquely arranged to be better attached to a frying pan, and the support ring 5 is arranged in a flaring shape.

As shown in fig. 1, a sliding seat 22 is horizontally and slidably connected to a side of the convex ring 21 away from the back plate 4, a backing plate 23 is vertically arranged on the sliding seat 22, and the backing plate 23 is arc-shaped and two ends of the backing plate are bent towards the stove 3.

When using this cooking stove, place the frying pan on support ring 5, make the frying pan laminating support ring 5's inner wall, utilize kitchen range 3 to heat the frying pan afterwards. When the frying pan needs to be taken down from the cooking range 3, the sliding seat 22 is pushed to drive the backing plate 23 to slide along the surface of the convex ring 21, then the backing plate 23 is used for abutting against the frying pan, and the frying pan is supported, so that the cross arm of the frying pan is arranged between the support ring 5 and the backing plate 23, and the temporary storage of the frying pan is realized.

As shown in fig. 1 and 2, the protruding ring 21 is provided with a laser emitter 24 and a laser receiver 25 at two ends of the cooking range body 1, the laser emitter 24 and the laser receiver 25 are distributed at two sides of the cooking range 3, and the outer wall of the supporting ring 5 is provided with a through hole 51.

As shown in fig. 1 and 2, a signal emitted by the laser emitter 24 passes through the through hole 51 and is transmitted to the laser receiver 25, and the oven body 1 is provided with a controller 11 for receiving the signal of the laser receiver 25 and controlling the on/off of the oven 3.

When the frying pan is placed on the support ring 5, the frying pan plugs the through hole 51 and blocks the signal emitted by the laser emitter 24. The laser receiver 25 does not sense the signal of the laser transmitter 24 and feeds back the information to the controller 11, and the cooking range 3 is controlled to be in the on state by the controller 11.

When the frying pan is taken down from the support ring 5, the through hole 51 is in a communication state, the laser emitter 24 is communicated with the laser receiver 25 at the same time, the laser receiver 25 receives a signal of the laser emitter 24, then the signal is fed back to the controller 11, and then the cooking range 3 is controlled to be in a closing state by the controller 11.

Therefore, when the frying pan is separated from the cooking range 3, the cooking range 3 is in a closed state, thereby reducing the energy waste and achieving the effect of saving energy.

As shown in fig. 1, 2 and 3, the upper end surface of the support ring 5 is vertically provided with a pair of sliding holes 52, one end of each sliding hole 52 is communicated with the through hole 51, and a sliding rod 53 for shielding the through hole 51 is vertically slidably connected in the sliding hole 52. The inner wall of the slide hole 52 is provided with a cavity 54, the outer wall of the slide rod 53 is sleeved with a spring 55 positioned in the cavity 54, and the outer wall of the slide rod 53 is provided with a reset plate 56 pressing the upper end surface of the spring 55.

When the pan is used, it is placed on the support ring 5, whereupon the pan presses the sliding rod 53 downwards, the sliding rod 53 bringing the return plate 56 into synchronous movement and pressing the spring 55 into compression. The sliding rod 53 blocks the through hole 51 until the upper end of the sliding rod 53 is completely inserted into the sliding hole 52 under the action of the pan, and the stove 3 is controlled to be in an open state through the cooperation of the laser transmitter 24, the laser receiver 25 and the controller 11.

When the pan is removed, the spring 55 extends and drives the return plate 56 and the slide bar 53 upward. The through hole 51 is in a communication state until the sliding rod 53 is separated from the through hole 51, and the cooking range 3 is controlled to be in a closed state through the cooperation of the laser transmitter 24, the laser receiver 25 and the controller 11.

Therefore, when the pan is placed, the cooking range 3 is in a closed state when the pan is separated from the cooking range 3, thereby reducing the energy waste and achieving the effect of saving energy. Specifically, the following are mentioned: the application is not only suitable for the curved frying pan with the bottom of the pan, but also suitable for the flat pan with the bottom of the pan being a plane when reducing the energy waste.

As shown in fig. 1 and 4, a water bucket 6 and a seasoning box 7 are arranged on the table top 2, the water bucket 6 and the seasoning box 7 are located on one side of the table top 2 close to the back plate 4 and are distributed at two ends of the table top 2, and a water tap 41 located above the water bucket 6 is arranged on the inner side wall of one end of the back plate 4 close to the water bucket 6.

When the cooking stove works, the water source is stored in time by arranging the water faucet 41 and the water bucket 6, so that a cook can use the water source more conveniently. Meanwhile, the seasoning box 7 is arranged on the table top 2, so that a cook can use the seasoning more easily and conveniently.

As shown in fig. 4, the seasoning box 7 includes a box 71 vertically disposed, and the box 71 is cylindrical and vertically disposed. The box body 71 is provided with a plurality of layers of arc-shaped sliding grooves 72, and a round drawer box 73 is embedded in each layer of sliding groove 72. One side of the drawer box 73 is hinged with the box body 71, the other side is provided with a handle 74, and the handle 74 is provided with a signboard 75.

When the seasoning needs to be used, the drawer box 73 slides outwards along the sliding groove 72 by observing the identification plate 75 on the handle 74 and driving the handle 74 to drive the drawer box 73 to turn outwards. The seasoning can be taken and used until the drawer box 73 is completely leaked.

When the use is finished, the driving handle 74 drives the drawer box 73 to move reversely, and at this time, the drawer box 73 slides inwards along the inner wall of the sliding groove 72. The drawer box 73 and the seasonings can be stored until the whole drawer box 73 is completely slid and embedded into the sliding groove 72.

As shown in fig. 5, the drawer box 73 includes a mounting ring 76 and a receiving box 77 fitted into the mounting ring 76, an upper end outer wall of the receiving box 77 is provided with a ring of beads 78, and an upper end inner wall of the mounting ring 76 is provided with a ring of grooves 79 into which the beads 78 are fitted.

When needs rinse drawer box 73 or change the condiment, directly will hold box 77 and take off the back, can brush alone holding box 77. After the seasoning box is dried, the seasoning is put into the accommodating box 77, the accommodating box 77 is embedded into the mounting ring 76, and the accommodating box 77 is quickly mounted and fixed through the matching of the convex ring 78 and the groove 79.

Example two:

when a wok or pan is used on a stove, a cook often needs to tilt the wok or pan so that the wok or pan can be separated from the stove, and the wok is only temporarily separated from the stove. In the scheme recorded in the first embodiment of the application, the cooking range 3 is started and stopped in a short time due to the fact that a wok or a pan is temporarily separated from the stove due to pot tossing, and the cooking range is often started, stopped and stopped due to the fact that the wok or the pan is tossed for many times and repeatedly operated, and the cooking range 3 is extremely easy to damage after long-term use. Therefore, the present embodiment improves on this problem.

The difference from the first embodiment is that: as shown in fig. 6 and 7, a pair of sliding holes 52 is vertically formed on the upper end surface of the support ring 5, one end of each sliding hole 52 is communicated with the through hole 51, a cavity 54 is formed in the inner wall of the sliding hole 52 of the support ring 5, a delay control device 8 capable of sensing whether a wok or a pan is placed on the support ring 5 is arranged in the cavity 54, a sliding rod 53 capable of plugging the through hole 51 is slidably connected to the sliding hole 52 between the delay control device 8 and the through hole 51, and when the delay control device 8 senses that the wok or the pan is detached from the support ring 5, the sliding rod 53 can be controlled to delay to leave the through hole 51 to keep the stove on in a wok-up state.

The sliding rod 53 is delayed to leave the through hole 51 mainly by the delay control device 8, so that even if a wok or a pan leaves a stove in a short time to perform wok turning operation, the stove 3 cannot be immediately turned off, and the stove 3 is protected.

Further, the delay and slow control device 8 comprises a permanent magnet tube 81 arranged in the cavity 54, a conductive elastic part 82 is sleeved outside the permanent magnet tube 81, a battery compartment 83 for loading a battery is arranged inside the permanent magnet tube 81, and a solenoid 84 is arranged between the battery compartment 83 and the permanent magnet tube 81.

Two ends of the conductive elastic element 82 are fixedly connected with a first ferromagnetic block 85 and a second ferromagnetic block 86 respectively, the first ferromagnetic block 85 is positioned on the upper portion of the second ferromagnetic block 86 and can reciprocate in the cavity 54, the bottom of the second ferromagnetic block 86 is fixedly connected with the inner wall of the cavity 54, and one side, far away from the first ferromagnetic block 85, of the second ferromagnetic block 86 is in magnetic attraction fit with the sliding rod 53. An abutting rod 87 is arranged on the upper portion of the first ferromagnetic block 85, and one end of the abutting rod 87 penetrates through the sliding hole 52 to be in contact with a frying pan or a flat pan outside.

One side of the first ferromagnetic block 85 away from the connecting rod 87 is provided with a moving contact 88, one end of the permanent magnet tube 81 facing the moving contact 88 is provided with a static contact 89 capable of being matched with the moving contact 88, and the static contact 89 is electrically connected with the positive electrode of the battery in the battery compartment 83. One side of the moving contact 88 is electrically connected with the solenoid 84 through the conductive elastic element 82 and the second ferromagnetic block 86, and one end of the solenoid 84 is electrically connected with the negative electrode of the battery in the battery compartment 83. When the abutting rod 87 is not abutted against the frying pan or the pan, the moving contact 88 and the fixed contact 89 still have a gap.

Further, the sliding rod 53 is made of metallic iron or metallic cobalt. Wherein the Curie temperature of iron is about 770 ℃ and the Curie temperature of cobalt is about 1131 ℃.

Further, when the sliding rod 53 blocks the through hole 51, the upper end thereof is still engaged with the sliding hole 52.

Further, the battery of the present embodiment is preferably a high temperature resistant battery, for example, chinese patent publication No. CN107785611A discloses a high temperature resistant button lithium manganese battery, which can resist high temperature above 100 ℃. In addition, a cork (not shown in the drawing) with a low thermal conductivity coefficient is arranged on the side, facing the second ferromagnetic block, of the battery compartment 83, and one side of the cork is detachably and fixedly connected with the second ferromagnetic block (for example, a fastener). The thermal conductivity coefficient of the cork is 0.043, so that the heat of the stove can be well transferred to the battery bin 83 in the cavity 54 through the through hole 51 and the sliding hole 52, and the battery is further protected from high temperature.

The working process of the second embodiment is as follows:

(1) when the cooker is in a closed state: because the permanent magnet tube 81 can generate a magnetic field, the first ferromagnetic block 85 and the second ferromagnetic block 86 can be magnetized under the action of the magnetic field. Because the first ferromagnetic block 85 can move in the cavity 54 and the second ferromagnetic block 86 is stationary, the first ferromagnetic block 85 has a magnetic attraction toward the extrusion direction of the conductive elastic member 82, and the magnetic attraction and the elastic force of the conductive elastic member 82 to the first ferromagnetic block 85 are balanced, and in this state, the movable contact 88 is still spaced from the fixed contact 89. In addition, the sliding rod 53 and the second ferromagnetic block 86 are in magnetic attraction fit, so that in this state, the sliding rod 53 does not block the through hole 51, but is attracted by the second ferromagnetic block 86, and the cooker is in a closed state.

(2) When the cooker is in an open state: when a wok or pan is placed on the support ring 5, the weight of the wok or pan acts on the abutting rod 87 and drives the abutting rod 87 to move into the cavity 54 and drive the conductive elastic member 82 to compress. After the conductive elastic element 82 is compressed to a certain distance, the static contact 89 is connected with the movable contact 88, so that the battery, the solenoid 84, the conductive elastic element 82, the second ferromagnetic block 86, the movable contact 88 and the static contact 89 form an electric loop, the solenoid 84 is electrified, an electromagnetic field which is mutually abutted with the electromagnetic pipe body is generated, namely the permanent magnetic pipe body 81 is demagnetized, at the moment, the sliding rod 53 can fall into the through hole 51 under the action of gravity to plug the through hole 51 under the action of no magnetic attraction force, and the cooker is in an open state at the moment. Specifically, the following are mentioned: when the through hole 51 is plugged by the sliding rod 53, the upper end of the sliding rod 53 is still matched with the sliding hole 52, so that the sliding rod 53 can only move along the axis direction thereof, and the delayed control device 8 can be used for multiple times.

(3) When the frying pan or the pan is in a wok state:

that is, the frying pan or the pan can be separated from the force applied to the abutting rod 87 for a short time, so that the abutting rod 87 moves upwards under the action of the conductive elastic member 82, and finally the separation of the fixed contact and the movable contact is realized, that is, the solenoid 84 is powered off, so that the magnetic field still exists in the permanent magnet tube 81. Specifically, the following are mentioned: the abutting rod 87 is pushed upward by the conductive spring 82 and gives an upward force to the pan or pan in the wok-up state, so that the cook can perform a plurality of wok-up operations.

However, since the frying pan or the pan forms a closed space with the range 3 in a state that the pan or the pan is not turned upside before, and one end of the through hole 51 is always communicated with the closed space, the temperature of the range 3 is different according to the gas used. When liquefied gas is selected, the highest temperature can reach 1400 ℃. In such a relatively sealed environment, the ambient temperature is easily transmitted to the slide rod 53, which is positioned in the through hole 51 and sealed, through the through hole 51. In the present application, the sliding rod 53 is made of a metallic iron or metallic cobalt material. Wherein the Curie temperature of iron is about 770 ℃ and the Curie temperature of cobalt is about 1131 ℃.

In particular, when the sliding rod 53 is made of metallic iron, the ferromagnetism of the sliding rod 53 disappears when the temperature of the sliding rod is higher than 770 ℃. Therefore, even if the permanent magnet tube 81 has a magnetic field, the sliding rod 53 is still not magnetized, so that the sliding rod 53 still blocks the through hole 51, and the stove 3 is still in a working state under the condition of pot-lifting.

(4) Automatic closing of the range 3:

the pan or pan is removed from the support ring 5 without tipping the pan. In this state, the closed space formed by the original frying pan or pan and the stove 3 will be opened, so that the temperature in the through hole 51 will be rapidly reduced, and when the temperature of the sliding rod 53 is reduced to below 770 ℃, the sliding rod 53 and the second ferromagnetic block 86 will be magnetized to attract each other to open the through hole 51 by the permanent magnet tube 81 under the condition of ferromagnetism, thereby realizing the automatic closing of the stove 3.

The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a cooking utensils fuel economizing device, includes controller (11), laser emitter (24), laser receiver (25) and sets up support ring (5) on kitchen range (3), controller (11) are used for receiving laser receiver (25) signal and control kitchen range (3) are opened and close its characterized in that: the laser emitter (24) and the laser receiver (25) are distributed on two sides of the stove (3), a through hole (51) penetrates through the outer wall of the support ring (5), and a signal emitted by the laser emitter (24) penetrates through the through hole (51) and is transmitted to the laser receiver (25);

a pair of sliding holes (52) is vertically formed in the upper end face of the support ring (5), one end of each sliding hole (52) is communicated with the through hole (51), a cavity (54) is formed in the inner wall of each sliding hole (52) of the support ring (5), a delay control device (8) capable of sensing whether a wok or a pan is placed on the support ring (5) is arranged in each cavity (54), and a sliding rod (53) capable of plugging the through hole (51) is connected to the sliding hole (52) between each delay control device (8) and the through hole (51) in a sliding mode; when the delay control device (8) senses that the wok or the pan is separated from the support ring (5), the sliding rod (53) can be controlled to delay to leave the through hole (51) so as to keep the range on when the wok is in a wok-up state; the sliding rod (53) is made of metal iron or metal cobalt materials.

2. The stove fuel saving device according to claim 1, characterized in that: the kitchen range (3) is arranged on a table top (2) of the kitchen range body (1), the laser transmitters (24) and the laser receivers (25) are distributed at two ends of the table top (2), and the controller (11) is arranged on the kitchen range body (1).

3. The stove fuel saving device according to claim 1, characterized in that: the outer edge of the table top (2) is provided with a circle of convex ring (21), and the laser transmitter (24) and the laser receiver (25) are fixed on the upper end face of the convex ring (21).

4. The stove fuel saving device according to claim 3, characterized in that: still including vertical set up in backplate (4) of mesa (2) one side, bulge loop (21) deviate from the horizontal sliding connection in one side of backplate (4) has sliding seat (22), vertically on sliding seat (22) be provided with backing plate (23), backing plate (23) are circular-arc and both ends orientation kitchen range (3) direction is crooked.

5. The stove fuel saving device according to claim 4, characterized in that: be provided with cask (6) and condiment box (7) on mesa (2), cask (6) with condiment box (7) are located mesa (2) are close to one side of backplate (4), and distribute in the both ends of mesa (2).

6. The stove fuel saving device according to claim 5, characterized in that: condiment box (7) are including vertically being provided with box body (71), box body (71) are cylindrical setting, be provided with the convex spout of multilayer (72) on box body (71), every layer all inlay in spout (72) and be equipped with circular shape drawer box (73), one side of drawer box (73) with box body (71) are articulated mutually, and the opposite side is provided with handle (74).

7. The stove fuel saving device according to claim 6, characterized in that: the handle (74) is provided with a signboard (75).

8. The stove fuel saving device according to claim 6, characterized in that: drawer box (73) include collar (76) and inlay and locate hold box (77) in collar (76), the upper end outer wall that holds box (77) is provided with round bulge loop (78), the upper end inner wall of collar (76) is provided with the round and supplies recess (79) that bulge loop (78) inlayed.

9. The stove fuel saving device according to claim 1, characterized in that: the delay control device (8) comprises a permanent magnet tube body (81) arranged in a cavity (54), a conductive elastic piece (82) is sleeved outside the permanent magnet tube body (81), a battery bin (83) used for loading a battery is arranged inside the permanent magnet tube body (81), and a solenoid (84) is arranged between the battery bin (83) and the permanent magnet tube body (81);

two ends of the conductive elastic part (82) are fixedly connected with a first ferromagnetic block (85) and a second ferromagnetic block (86) respectively, the first ferromagnetic block (85) is positioned at the upper part of the second ferromagnetic block (86) and can reciprocate in the cavity (54), the bottom of the second ferromagnetic block (86) is fixedly connected with the inner wall of the cavity (54), one side, far away from the first ferromagnetic block (85), of the second ferromagnetic block (86) is matched with the sliding rod (53) in a magnetic attraction manner, the upper part of the first ferromagnetic block (85) is provided with an abutting rod (87), and one end of the abutting rod (87) penetrates through the sliding hole (52) to be in contact with a wok or a flat-bottomed pan outside; one side of the first ferromagnetic block (85) departing from the abutting rod (87) is provided with a moving contact (88), one end of the permanent magnet tube body (81) facing the moving contact (88) is provided with a fixed contact (89) which can be matched with the moving contact (88), the fixed contact (89) is electrically connected with a battery anode in the battery bin (83), one side of the moving contact (88) is electrically connected with the solenoid (84) through the conductive elastic part (82) and the second ferromagnetic block (86), one end of the solenoid (84) is electrically connected with a battery cathode in the battery bin (83), and when the abutting rod (87) is not abutted to the wok or the pan, the moving contact (88) and the fixed contact (89) still have an interval.