A natural gas energy-saving and gas-saving device for university cafeterias

Abstract

A natural gas energy-saving and gas-saving device for a university cafeteria comprises an operating table (2) and a support assembly (5), wherein the support assembly (5) comprises a first annular bracket (51), a support shaft (52) and an auxiliary assembly (53), wherein the upper surface of the first annular bracket (51) is distributed in an annular array, the upper end surface of the support shaft (52) is connected to a support block (54), the outer surface of the support block (54) is provided with an auxiliary assembly (53), and the lower surface of the first annular bracket (51) is provided with a lifting assembly (8), the lifting assembly (8) comprises a hollow sliding sleeve (82) and a second annular bracket (8 4), the upper surface of the second annular bracket (84) is connected to the lower surface of the first annular bracket (51), a holding platform (16) is provided on one side of the operating table (2), a water outlet pipe (12) is connected to the front of one side surface of the holding platform (16), a first valve (1201) is connected to the water outlet pipe (12), the support component (5) makes the device suitable for frying pans of different shapes, the lifting component (8) makes the device completely block the discharge of gas inside the pipeline when the device is no longer in use, and the water outlet pipe (12) and the first valve (1201) increase the functionality of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of university dining and related devices, and in particular relates to a natural gas energy-saving and gas-saving device for university cafeterias. Background Art

[0002] With the continuous progress of society, the scope of knowledge mastered by people is becoming more and more extensive. Among them, studying in colleges and universities is one of the ways for people to obtain knowledge. Due to the large number of students studying in colleges and universities, college canteens need to prepare more meals. Among them, with the popularization of natural gas, college canteens use natural gas as fuel for cooking.

[0003] After searching, patent document CN109556152B discloses a natural gas energy-saving and gas-saving device for university cafeterias, which belongs to the field of natural gas utilization equipment. Existing natural gas in university cafeterias has problems such as insufficient natural gas utilization, easy waste of natural gas resources, low natural gas utilization efficiency and high cost. Therefore, the present invention is provided with a ventilation device. During the ventilation process, the arc-shaped baffle blocks part of the natural gas, while part of the natural gas flows into the groove, forming a "mediation" in the groove, thereby slowing the flow rate of the natural gas, allowing the natural gas to be fully burned and improving the utilization efficiency of the natural gas. Therefore, the present invention is provided with a heat-absorbing baffle. The black chrome coating has good heat absorption performance and thermal stability, which can effectively absorb the heat from the fire source. A large amount of heat will heat the water in the water storage chamber. The hot water is then connected to the water in the heating water tank through the water pipe, which can effectively heat the processed food, greatly saving manpower and material resources and saving natural gas resources.

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. In a natural gas energy-saving and gas-saving device for a university cafeteria disclosed in patent publication number CN109556152B, a supporting device is provided to support a wok. However, the supporting device provided in the natural gas energy-saving and gas-saving device for a university cafeteria disclosed in patent publication number CN109556152B is only convenient for supporting non-flat-top pans, but not for supporting flat-top pans. This results in a narrow scope of application of the supporting device provided in the natural gas energy-saving and gas-saving device for a university cafeteria disclosed in patent publication number CN109556152B, thereby reducing the practicality of the natural gas energy-saving and gas-saving device for a university cafeteria disclosed in patent publication number CN109556152B.

[0006] 2. Patent publication number CN109556152B discloses a natural gas energy-saving and gas-saving device for a university cafeteria. The device uses a sleeve, a natural gas pipeline, a through hole, and a V-shaped through hole to control the amount of gas discharged from the natural gas pipeline. However, the device cannot completely block the gas discharge from the natural gas pipeline, resulting in gas waste.

[0007] 3. In a natural gas energy-saving and gas-saving device for a university cafeteria disclosed in the patent document with patent publication number CN109556152B, a heating water tank is provided to heat and keep warm the food inside the food tray. However, the heating water tank provided in the natural gas energy-saving and gas-saving device for a university cafeteria disclosed in the patent document with patent publication number CN109556152B has a simple structure, which makes it inconvenient for people to discharge the hot water inside the heating water tank provided in the natural gas energy-saving and gas-saving device for a university cafeteria disclosed in the patent document with patent publication number CN109556152B, thereby reducing the functionality of the natural gas energy-saving and gas-saving device for a university cafeteria disclosed in the patent document with patent publication number CN109556152B, and causing inconvenience to people in washing dishes in cold weather.

[0008] Therefore, the natural gas energy-saving and gas-saving device for a university cafeteria disclosed in the patent document with patent publication number CN109556152B cannot meet the needs of actual use, so there is an urgent need for improved technology on the market to solve the above problems. Summary of the Invention

[0009] The purpose of the present invention is to provide a natural gas energy-saving and gas-saving device for university cafeterias. By arranging a support component, a lifting component, a water outlet pipe and a first valve, the present invention solves the problems of low practicality, poor energy-saving and gas-saving effect, and single functionality of a natural gas energy-saving and gas-saving device for university cafeterias disclosed in the patent document with patent publication number CN109556152B.

[0010] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0011] The present invention is a natural gas energy-saving and gas-saving device for a university cafeteria, comprising an operating table and a support assembly, wherein the support assembly comprises a first annular bracket, a support shaft and an auxiliary assembly, the upper surface of the first annular bracket is distributed in an annular array, and the upper end surface of the support shaft is connected to a support block, the outer surface of the support block is provided with an auxiliary assembly, and the auxiliary assembly comprises a movable block, a side block and a screw, the movable block is located on the inner side of a rectangular through groove opened on the outer surface of the support block, a screw is provided through the middle part of the upper part of the outer surface of the side block connected to the outer surface of the movable block, the outer circumferential surface of the ball sleeve connected to the circumferential surface of the screw is connected to the side block, the outer end surface of the screw is connected to the turning handle, and the lower surface of the first annular bracket is provided with a A lifting assembly is provided, which includes a hollow sliding sleeve and a second annular bracket, a hollow sliding sleeve is provided in the upper middle part of the second annular bracket, and one side of the lower surface of the L-shaped frame distributed in a circular array on the lower part of the outer circumference of the hollow sliding sleeve is connected to the upper surface of the second annular bracket, and a second spring is distributed in a circular array on the lower surface of the second annular bracket, and the upper surface of the second annular bracket is connected to the lower surface of the first annular bracket. One side of the L-shaped frame is along the inner side of the first U-shaped through groove opened in a circular array on the upper surface of the first annular bracket, and a placing table is provided on one side of the operating table, and the front part of one side surface of the placing table is connected to a water outlet pipe, and the water outlet pipe is connected to a first valve.

[0012] Furthermore, a stove shell is placed inside a placement groove symmetrically opened on the upper surface of the workbench, and a supporting base is connected to the inner upper surface of the stove shell. An annular groove is opened on the outer side of the upper surface of the supporting base, and rectangular grooves are opened in an annular array on the inner side of the upper surface of the supporting base. The position of the rectangular groove on the supporting base corresponds one-to-one to the position of the L-shaped frame, and the inner lower side of the annular groove on the supporting base is connected to the lower surface of the second spring. Specifically, the presence of the placement groove makes it easier for the user to determine the position between the stove shell and the workbench, and the presence of the supporting base is used to support the second annular bracket.

[0013] Furthermore, a ventilation assembly is provided through the middle of the upper surface of the supporting base, and the ventilation assembly includes a connector, a right-angle connecting pipe and a pipe. The lower end of the pipe passes through the supporting base, and the lower end face of the pipe is connected to the right-angle connecting pipe. One end face of the right-angle connecting pipe is connected to the connector, and one end face of the connector passes through a side surface of the stove head housing. Specifically, the right-angle connecting pipe is used to connect the connector and the pipe, and the connector is used to connect the external gas pipe and the right-angle connecting pipe.

[0014] The interior of the pipe is connected to a spiral pipe, the upper end surface of the spiral pipe is connected to a core nozzle, and an internal threaded cap is threadedly connected to an externally threaded body provided on the upper portion of the outer circumference of the pipe. Specifically, the presence of the spiral pipe increases the travel distance of the gas, the core nozzle is provided for discharging the gas inside the spiral pipe, and the presence of the internal threaded cap limits the upward movement trajectory of the hollow sleeve.

[0015] The upper portion of the outer circumference of the pipe is provided with air vents in an annular array, and the outer circumference of the pipe is provided with a U-shaped slide groove in an annular array, and the pipe passes through a hollow sliding sleeve, and the inner circumference of the hollow sliding sleeve is provided with a second U-shaped through groove in an annular array, and an L-shaped sliding rod is provided on the outer side of the U-shaped slide groove provided on the pipe, and the sliding rod body connected to the inner surface of the L-shaped slide rod slides along the U-shaped slide groove, and the lower surface of the hollow sliding sleeve contacts one side of the upper surface of the L-shaped slide rod, and the lower surface of the L-shaped slide rod is connected with a vertical shaft, and the lower end face of the vertical shaft is connected to the side surface of the ear seat The upper and lower surfaces of the first spring connected to the outer circumference of the pipeline, the outer circumference of the vertical axis are in contact with the lower surface of the L-shaped slide rod and the upper surface of the ear seat respectively. Specifically, the existence of the air vent is used for the gas inside the pipeline. The existence of the U-shaped slide groove limits the trajectory of the slide rod body moving on the pipeline. The existence of the second U-shaped through groove is used for the L-shaped slide rod to pass through the hollow sleeve. The existence of the hollow sleeve limits the distance the L-shaped slide rod moves upward. The existence of the vertical axis limits the movement trajectory of the L-shaped slide rod. The existence of the ear seat prevents the first spring from detaching from the vertical axis when moving downward.

[0016] Furthermore, a heat-absorbing baffle is connected to the outer upper surface of the stove head shell, and a heat transfer pipe is connected to one side of the outer peripheral surface of the heat-absorbing baffle, and the other end surface of the heat transfer pipe is connected to a surface of the holding table. Specifically, the heat-absorbing baffle is used to absorb the heat from the fire source, and the heat transfer pipe is used to conduct heat to the water inside the water tank.

[0017] Furthermore, second door panels are arranged at equal intervals on the front surface of the operating table, and second hinges are symmetrically connected to one side of the outer surface of the second door panel, and one side of the rear surface of the second hinge is connected to the front surface of the operating table. A second protrusion is connected to the middle part of the other side of the outer surface of the second door panel, and a U-shaped frame is symmetrically connected to the inside of the operating table, and the upper surface of the U-shaped frame is connected to the lower surface of the stove shell. Specifically, the existence of the second hinge allows the second door panel to move in an arc with the second hinge as the axis when subjected to external force. The existence of the second protrusion is used for the user to apply external force to the second door panel, and the existence of the U-shaped frame is used to support the stove shell.

[0018] Furthermore, a water tank is provided on the upper surface of the holding table, and trays are distributed at equal intervals on the upper surface of the holding table. The lower surface of the round-shaped seat connected to the upper surface of the tray is in contact with the upper surface of the holding table, and the upper surface of the round-shaped seat is symmetrically connected to handles. Specifically, the water tank is used to store water, the tray is used to store food, the round-shaped seat prevents the tray from falling completely into the water tank, and the handle is used for the user to take and place the tray.

[0019] Furthermore, a water inlet pipe is connected to the rear portion of one side surface of the placing table, and a second valve is connected to the water inlet pipe. Specifically, the water inlet pipe is used to add cold water to the inside of the water tank, and the second valve is used to control whether external cold water enters the inside of the water tank from the water inlet pipe.

[0020] Furthermore, the lower surface of the holding table is connected to a food heating box, and the front surface of the food heating box has first door panels distributed at equal intervals, one side of the outer surface of the first door panel is symmetrically connected to a first hinge, one side of the rear surface of the first hinge is connected to the front surface of the food heating box, and the middle part of the other side of the outer surface of the first door panel is connected to a first protrusion. Specifically, the existence of the first hinge allows the first door panel to move in a circular arc with the first hinge as the axis when subjected to external force, and the existence of the first protrusion is used for the user to apply external force to the first door panel.

[0021] Furthermore, universal casters are evenly spaced on the front and rear sides of the lower surface of the food heating box, and the upper surface of the I-shaped seat connected to the upper surface of the universal casters is connected to the lower surface of the food heating box. Specifically, the I-shaped seat is used to support the food heating box, and the universal casters are used for the user to move the holding table.

[0022] The present invention has the following beneficial effects:

[0023] The lifting mechanism is a kind of key which is set up in the state that the support frame is the first group of keys, and the key is set up in the state that the support frame is the first group of keys.

[0024] 2. The present invention is provided with a lifting assembly. The lower surface of the first annular bracket is provided with a lifting assembly. The lifting assembly includes a hollow sliding sleeve and a second annular bracket. A hollow sliding sleeve is provided at the upper middle portion of the second annular bracket. The lower portion of the outer circumference of the hollow sliding sleeve is distributed in an annular array. One side of the lower surface of the L-shaped frame is connected to the upper surface of the second annular bracket. The lower surface of the second annular bracket is distributed in an annular array with a second spring. The upper surface of the second annular bracket is connected to the lower surface of the first annular bracket. One side of the L-shaped frame is along the inner side of the first U-shaped through groove opened in an annular array on the upper surface of the first annular bracket. Such a design allows the user to After the frying pan is placed on the supporting assembly, the hollow sliding sleeve drives the L-shaped sliding rod to move downward, so that the hollow sliding sleeve and the L-shaped sliding rod cannot block the air vent, so that the gas entering the pipeline is discharged from the air vent; when the user removes the frying pan from the supporting assembly, the hollow sliding sleeve drives the L-shaped sliding rod to move upward, so that the hollow sliding sleeve and the L-shaped sliding rod block the air vent, so that the gas entering the pipeline cannot be discharged from the air vent, so as to avoid the gas inside the pipeline still being discharged outward when the user does not operate the device to cook, thereby avoiding the waste of gas, and achieving the effect of energy saving and gas saving of natural gas.

[0025] 3. The present invention provides a water outlet pipe and a first valve structure. A holding platform is provided on one side of the operating table. The front portion of one side surface of the holding platform is connected to a water outlet pipe, and the water outlet pipe is connected to the first valve. With this design, after the user opens the first valve, the water in the water tank is discharged from the water outlet pipe. Then, the user uses the discharged hot water to wash dishes, thereby bringing convenience to people in washing dishes in cold weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 Schematic diagram of the internal structure of the stove shell in the present invention;

[0029] Figure 3 Schematic diagram of the structure of the support assembly in the present invention;

[0030] Figure 4 Schematic diagram of the structure of the auxiliary components in the present invention;

[0031] Figure 5 It is a structural schematic diagram of the lifting assembly in the present invention;

[0032] Figure 6 Schematic diagram of the structure of the ventilation assembly of the present invention;

[0033] Figure 7 This is a schematic diagram of the connection between the pipe and the L-shaped sliding rod in the present invention;

[0034] Figure 8 This is a schematic diagram of the connection between the operating table and the second door panel in the present invention;

[0035] Figure 9 This is a schematic diagram of the connection between the holding platform, the water inlet pipe, and the water outlet pipe in the present invention;

[0036] Figure 10 This is a schematic diagram of the connection between the placing table and the tray in the present invention;

[0037] Figure 11 Schematic diagram of the connection between the food heating box and the first door panel in the present invention;

[0038] Figure 12 This is a schematic diagram of the connection between the food heating box and the universal casters in the present invention.

[0039] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0040] 1. Food warmer; 11. Universal casters; 1101. I-shaped seat; 12. Water outlet; 1201. First valve; 13. Water inlet; 1301. Second valve; 14. Tray; 1401. Reciprocating seat; 1402. Handle; 15. First door panel; 1501. First handle; 1502. First hinge; 16. Serving platform; 1601. Water reservoir; 2. Worktop; 21. Second door panel; 2101. Second hinge; 2102. Second handle; 22. U-shaped frame; 23. Mounting slot; 3. Cooker housing; 31. Support base; 3101. Annular groove; 3102. Rectangular groove; 4. Ventilation assembly; 41. Connector; 42. Right-angle connecting pipe; 43. Pipe; 4301. Externally threaded body; 4302, U-shaped slide groove; 4303, air vent; 44, L-shaped slide rod; 4401, slide rod body; 45, spiral tube; 46, internal thread cover; 47, spray core head; 48, ear seat; 4801, vertical axis; 4802, first spring; 5, support assembly; 51, first annular bracket; 5101, first U-shaped through groove; 52, support shaft; 53, auxiliary assembly; 5301, movable block; 5302, side block; 5303, turning handle; 5304, ball bearing sleeve; 5305, screw; 54, support block; 5401, rectangular through groove; 6, heat transfer tube; 7, heat absorbing baffle; 8, lifting assembly; 81, second spring; 82, hollow slide sleeve; 8201, second U-shaped through groove; 83, L-shaped frame; 84, second annular bracket. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0042] See also Figure 1-12 As shown, the present invention is a natural gas energy-saving and gas-saving device for a university cafeteria, comprising an operating table 2 and a support assembly 5, wherein the support assembly 5 comprises a first annular bracket 51, a support shaft 52 and an auxiliary assembly 53, wherein the upper surface of the first annular bracket 51 is distributed in an annular array, and the upper end surface of the support shaft 52 is connected to a support block 54, and the outer surface of the support block 54 is provided with an auxiliary assembly 53, and the auxiliary assembly 53 comprises a movable block 5301, a side block 5302 and a lead screw 5305, wherein the movable block 5301 is located at A lead screw 5305 is provided inside a rectangular through-slot 5401 formed on the outer surface of the support block 54, and extends through the middle portion of the upper portion of the outer surface of the side block 5302 connected to the outer surface of the movable block 5301. A ball bearing 5304 connected to the circumference of the lead screw 5305 is connected to the outer circumference of the side block 5302, and a handle 5303 is connected to the outer end surface of the lead screw 5305. Specifically, a user places a non-flat-top pan on the inclined surface of the support block 54 and then uses the non-flat-top pan to cook.

[0043] When the user needs to place the flat-top pan on the support assembly 5, the user rotates the handle 5303, which drives the lead screw 5305 to rotate, and drives the ball sleeve 5304 to rotate and move toward the support block 54, thereby driving the side block 5302 to move toward the support block 54, and then drives the movable block 5301 to move until the side block 5302 moves into contact with the support block 54. Then, the user places the flat-top pan on the upper surface of the movable block 5301. At this point, the user has placed the flat-top pan on the support assembly 5.

[0044] A lifting assembly 8 is provided on the lower surface of the first annular bracket 51. The lifting assembly 8 includes a hollow sliding sleeve 82 and a second annular bracket 84. A hollow sliding sleeve 82 is provided in the upper middle part of the second annular bracket 84. The lower surface of the L-shaped frame 83 on the lower part of the outer circumference of the hollow sliding sleeve 82 is distributed in a circular array and is connected to the upper surface of the second annular bracket 84. The lower surface of the second annular bracket 84 is distributed with a second spring 81 in a circular array. The upper surface of the second annular bracket 84 is connected to the lower surface of the first annular bracket 51. One side of the L-shaped frame 83 is opened in a circular array along the upper surface of the first annular bracket 51. The inner side of the first U-shaped through groove 5101 is formed by the user placing the wok on the supporting assembly 5. Specifically, when the user places the wok on the supporting assembly 5, the second annular bracket 84 is subjected to a downward external force, causing the second spring 81 to contract, driving the second annular bracket 84 to move toward the annular groove 3101, driving the L-shaped bracket 83 to move toward the rectangular groove 3102, driving the hollow sliding sleeve 82 to move downward, driving the first annular bracket 51 to move downward, causing the hollow sliding sleeve 82 to drive the L-shaped sliding rod 44 to move downward, exposing the air vent 4303, thereby allowing the gas entering the pipe 43 to be discharged to the outside of the pipe 43;

[0045] On the other hand, when the user removes the wok from the support assembly 5, the second spring 81 stretches, causing the second annular bracket 84 to be subjected to an upward external force, which drives the second annular bracket 84 to move away from the annular groove 3101, drives the L-shaped bracket 83 to move away from the rectangular groove 3102, drives the hollow sliding sleeve 82 to move upward, drives the first annular bracket 51 to move upward, causes the hollow sliding sleeve 82 to drive the L-shaped sliding rod 44 to move upward, and causes the air vent 4303 to be completely blocked by the L-shaped sliding rod 44, thereby preventing the gas entering the pipe 43 from being discharged to the outside of the pipe 43;

[0046] A holding table 16 is provided on one side of the work surface 2. The front part of one side surface of the holding table 16 is connected to a water outlet pipe 12. The water outlet pipe 12 is connected to a first valve 1201. Specifically, the user opens the first valve 1201 to allow the water inside the water tank 1601 to be discharged from the water outlet pipe 12. Then, the user uses the water discharged from the water outlet pipe 12 to wash dishes.

[0047] Among them Figure 1 、 2 As shown in , 5, and 8, the stove head shell 3 is placed inside the placement groove 23 symmetrically opened on the upper surface of the workbench 2, and the inner upper surface of the stove head shell 3 is connected to the supporting base 31. The outer side of the upper surface of the supporting base 31 is provided with an annular groove 3101, and the inner side of the upper surface of the supporting base 31 is provided with rectangular grooves 3102 in an annular array. The position of the rectangular groove 3102 on the supporting base 31 corresponds to the position of the L-shaped frame 83 one by one. The inner lower side of the annular groove 3101 on the supporting base 31 is connected to the lower surface of the second spring 81. Specifically, when the second spring 81 is subjected to a downward external force, the second spring 81 contracts, thereby driving the second annular bracket 84 to move downward into the inside of the annular groove 3101, so that the L-shaped frame 83 moves toward the direction close to the rectangular groove 3102.

[0048] Among them Figure 2 、 6 As shown in Figures 7 and 8, a ventilation assembly 4 is provided through the middle of the upper surface of the supporting base 31. The ventilation assembly 4 includes a connector 41, a right-angle connecting pipe 42, and a pipe 43. The lower end of the pipe 43 penetrates the supporting base 31, and the lower end face of the pipe 43 is connected to the right-angle connecting pipe 42. One end face of the right-angle connecting pipe 42 is connected to the connector 41. One end face of the connector 41 penetrates one side surface of the stove head housing 3. Specifically, the user connects the connector 41 to the external gas pipe, and then opens the control valve on the external gas pipe, so that the gas inside the external gas pipe enters the interior of the right-angle connecting pipe 42 from the connector 41.

[0049] A spiral tube 45 is connected to the interior of the pipe 43. A riser head 47 is connected to the upper end of the spiral tube 45. An internally threaded cap 46 is threadedly connected to an externally threaded body 4301 formed on the upper portion of the outer circumference of the pipe 43. The gas entering the right-angle connecting pipe 42 enters the interior of the spiral tube 45. Specifically, the gas entering the spiral tube 45 is then ejected from the riser head 47 toward the upper interior of the pipe 43.

[0050] The upper portion of the outer circumference of the pipe 43 is provided with air holes 4303 in a circular array, the outer circumference of the pipe 43 is provided with a U-shaped slide groove 4302 in a circular array, the pipe 43 passes through the hollow sliding sleeve 82, the inner circumference of the hollow sliding sleeve 82 is provided with a second U-shaped through groove 8201 in a circular array, an L-shaped slide bar 44 is provided on the outside of the U-shaped slide groove 4302 provided on the pipe 43, the slide bar body 4401 connected to the inner surface of the L-shaped slide bar 44 slides along the U-shaped slide groove 4302, the lower surface of the hollow sliding sleeve 82 is in contact with one side of the upper surface of the L-shaped slide bar 44, the lower surface of the L-shaped slide bar 44 is passed through and connected with a vertical shaft 4801, and the lower end surface of the vertical shaft 4801 is connected to the surface of one side of the ear seat 48 On the outer circumference of the pipe 43, the upper and lower surfaces of the first spring 4802 sleeved on the outer circumference of the vertical axis 4801 are in contact with the lower surface of the L-shaped slide bar 44 and the upper surface of the ear seat 48 respectively. Specifically, when the hollow sleeve 82 is subjected to a downward external force, the slide bar body 4401 slides downward along the U-shaped slide groove 4302, driving the L-shaped slide bar 44 to move downward along the vertical axis 4801, causing the first spring 4802 to contract, causing the hollow sleeve 82 to move downward until the L-shaped slide bar 44 does not block the air vent 4303, so that the gas entering the pipe 43 is discharged from the air vent 4303; otherwise, the gas entering the pipe 43 cannot be discharged from the air vent 4303.

[0051] Among them Figure 1 、 2 As shown, the outer upper surface of the stove head shell 3 is connected to a heat-absorbing baffle 7, and one side of the outer peripheral surface of the heat-absorbing baffle 7 is connected to a heat transfer pipe 6, and the other end surface of the heat transfer pipe 6 is connected to a surface of the holding platform 16. Specifically, the heat-absorbing baffle 7 absorbs heat from the fire source, and then transfers the heat to the water inside the water tank 1601 through the heat transfer pipe 6, thereby increasing the temperature of the water inside the water tank 1601.

[0052] Among them Figure 1 、 8 As shown, second door panels 21 are arranged at equal intervals on the front surface of the operating table 2, and second hinges 2101 are symmetrically connected to one side of the outer surface of the second door panel 21, and one side of the rear surface of the second hinge 2101 is connected to the front surface of the operating table 2. A second protrusion 2102 is connected to the middle part of the other side of the outer surface of the second door panel 21, and a U-shaped frame 22 is symmetrically connected to the inside of the operating table 2, and the upper surface of the U-shaped frame 22 is connected to the lower surface of the stove head housing 3. Specifically, the user pinches the second protrusion 2102 with his hand, and then the user applies external force to the second protrusion 2102, so that the second door panel 21 moves in a circular arc with the second hinge 2101 as the axis, thereby opening or closing the second door panel 21.

[0053] Among them Figure 9 、 10As shown, a water tank 1601 is provided on the upper surface of the holding platform 16. Trays 14 are evenly spaced on the upper surface of the holding platform 16. The lower surface of a circular base 1401 connected to the upper surface of the trays 14 contacts the upper surface of the holding platform 16. The upper surface of the circular base 1401 is symmetrically connected to a handle 1402. Specifically, when the temperature of the water in the water tank 1601 rises, the food in the trays 14 is heated and kept warm.

[0054] The user pinches the handle 1402 with his hand, and then applies an upward external force to the handle 1402, so that the tray 14 moves upward, driving the round-shaped seat 1401 to move upward; conversely, the user applies a downward external force to the handle 1402, so that the tray 14 moves downward, driving the round-shaped seat 1401 to move downward.

[0055] Among them Figure 9 As shown, the rear part of one side surface of the holding table 16 is connected to a water inlet pipe 13, and the water inlet pipe 13 is connected to a second valve 1301. Specifically, the user connects the water inlet pipe 13 with the external water pipe, and then opens the second valve 1301, so that the cold water inside the external water pipe enters the inner side of the water storage tank 1601 from the water inlet pipe 13.

[0056] Among them Figure 11 As shown, the lower surface of the holding table 16 is connected to the food heating box 1, and the front surface of the food heating box 1 is evenly spaced with first door panels 15, and one side of the outer surface of the first door panel 15 is symmetrically connected to the first hinge 1502, and one side of the rear surface of the first hinge 1502 is connected to the front surface of the food heating box 1, and the middle part of the other side of the outer surface of the first door panel 15 is connected to the first protrusion 1501. Specifically, the user pinches the first protrusion 1501 with his hand, and then the user applies external force to the first protrusion 1501, so that the first door panel 15 moves in a circular arc with the first hinge 1502 as the axis, thereby opening or closing the first door panel 15.

[0057] Among them Figure 12 As shown, universal casters 11 are evenly spaced on the front and back sides of the lower surface of the food heating box 1. The upper surface of the universal caster 11 is connected to the upper surface of the I-shaped seat 1101 connected to the lower surface of the food heating box 1. Specifically, the user applies external force to the holding table 16 by hand to make the universal caster 11 roll, thereby driving the I-shaped seat 1101 to move, thereby driving the food heating box 1 to move, and thereby driving the holding table 16 to move.

[0058] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are within the scope of protection of the present invention.

Claims

1. A natural gas energy-saving and gas-saving device for a university cafeteria, comprising an operating table (2) and a support assembly (5), characterized in that: The support assembly (5) includes a first annular bracket (51), a support shaft (52) and an auxiliary assembly (53); the upper surface of the first annular bracket (51) is connected to the upper end surface of the support shaft (52) distributed in an annular array, and the support block (54) is provided with an auxiliary assembly (53) on the outer surface of the support block (54); the auxiliary assembly (53) includes a movable block (5301), a side block (5302) and a lead screw (5305); the movable block (5301) is located on the inner side of a rectangular through groove (5401) provided on the outer surface of the support block (54); the lead screw (5305) is provided through the middle part of the upper part of the outer surface of the side block (5302) connected to the outer surface of the movable block (5301); the outer circumferential surface of the ball sleeve (5304) connected to the circumferential surface of the lead screw (5305) is connected to the side block (5302); the outer end surface of the lead screw (5305) is connected to the handle (5303); A lifting assembly (8) is provided on the lower surface of the first annular bracket (51), and the lifting assembly (8) includes a hollow sliding sleeve (82) and a second annular bracket (84). A hollow sliding sleeve (82) is provided in the upper middle portion of the second annular bracket (84). One side of the lower surface of an L-shaped frame (83) distributed in an annular array at the lower portion of the outer circumference of the hollow sliding sleeve (82) is connected to the upper surface of the second annular bracket (84). A second spring (81) is distributed in an annular array on the lower surface of the second annular bracket (84). The upper surface of the second annular bracket (84) is connected to the lower surface of the first annular bracket (51). One side of the L-shaped frame (83) is along the inner side of a first U-shaped through groove (5101) opened in an annular array on the upper surface of the first annular bracket (51); A holding platform (16) is provided on one side of the operating table (2), a front portion of a surface of one side of the holding platform (16) is connected to a water outlet pipe (12), and a first valve (1201) is connected to the water outlet pipe (12).

2. A natural gas energy-saving and gas-saving device for a university cafeteria according to claim 1, characterized in that: A stove shell (3) is placed inside a placement groove (23) symmetrically provided on the upper surface of the operating table (2), and a supporting base (31) is connected to the inner upper surface of the stove shell (3). An annular groove (3101) is provided on the upper surface of the supporting base (31), and rectangular grooves (3102) arranged in a cross pattern are provided on the upper surface of the supporting base (31) located within the annular groove (3101). The position of the rectangular groove (3102) on the supporting base (31) corresponds to the position of the L-shaped frame (83) in a one-to-one manner. The inner lower side of the annular groove (3101) on the supporting base (31) is connected to the lower surface of the second spring (81).

3. A natural gas energy-saving and gas-saving device for a university cafeteria according to claim 2, characterized in that: A ventilation assembly (4) is provided through the middle of the upper surface of the supporting base (31), and the ventilation assembly (4) includes a connector (41), a right-angle connecting pipe (42) and a pipe (43), the lower end of the pipe (43) passes through the supporting base (31), the lower end face of the pipe (43) is connected to the right-angle connecting pipe (42), one end face of the right-angle connecting pipe (42) is connected to the connector (41), and one end face of the connector (41) passes through a side surface of the stove head housing (3); The interior of the pipe (43) is connected to a spiral pipe (45), the upper end surface of the spiral pipe (45) is connected to a core nozzle (47), and an internal threaded cover (46) is threadedly connected to an external threaded body (4301) provided on the upper portion of the outer circumference of the pipe (43); The upper portion of the outer circumference of the pipe (43) is provided with air holes (4303) in an annular array, the outer circumference of the pipe (43) is provided with a U-shaped chute (4302) in an annular array, the pipe (43) passes through the hollow sliding sleeve (82), the inner circumference of the hollow sliding sleeve (82) is provided with a second U-shaped through groove (8201) in an annular array, an L-shaped slide rod (44) is provided on the outer side of the U-shaped chute (4302) provided on the pipe (43), and the inner surface of the L-shaped slide rod (44) is connected to the slide rod body (4401) ) slides along the U-shaped slide groove (4302), the lower surface of the hollow sliding sleeve (82) contacts one side of the upper surface of the L-shaped slide bar (44), the lower surface of the L-shaped slide bar (44) is connected with a vertical shaft (4801), one side surface of the ear seat (48) connected to the lower end face of the vertical shaft (4801) is connected to the outer peripheral surface of the pipe (43), and the upper and lower surfaces of the first spring (4802) sleeved on the outer peripheral surface of the vertical shaft (4801) are in contact with the lower surface of the L-shaped slide bar (44) and the upper surface of the ear seat (48) respectively.

4. A natural gas energy-saving and gas-saving device for a university cafeteria according to claim 3, characterized in that: The outer upper surface of the stove head housing (3) is connected to a heat absorbing baffle (7), one side of the outer peripheral surface of the heat absorbing baffle (7) is connected to a heat transfer pipe (6), and the other end surface of the heat transfer pipe (6) is connected to a surface of the holding platform (16).

5. The natural gas energy-saving and gas-saving device for a university cafeteria according to claim 2 is characterized in that: The front surface of the operating table (2) is provided with second door panels (21) at equal intervals, one side of the outer surface of the second door panel (21) is symmetrically connected to a second hinge (2101) in upper and lower directions, one side of the rear surface of the second hinge (2101) is connected to the front surface of the operating table (2), and the middle part of the other side of the outer surface of the second door panel (21) is connected to a second protruding handle (2102), and the interior of the operating table (2) is symmetrically connected to a U-shaped frame (22), and the upper surface of the U-shaped frame (22) is connected to the lower surface of the stove head housing (3).

6. A natural gas energy-saving and gas-saving device for a university cafeteria according to claim 4, characterized in that: A water storage tank (1601) is provided on the upper surface of the holding platform (16), and trays (14) are distributed on the upper surface of the holding platform (16) at equal intervals. The lower surface of the round-shaped seat (1401) connected to the upper surface of the tray (14) contacts the upper surface of the holding platform (16), and the upper surface of the round-shaped seat (1401) is symmetrically connected to a handle (1402).

7. A natural gas energy-saving and gas-saving device for a university cafeteria according to claim 6, characterized in that: A water inlet pipe (13) is connected to the rear portion of one side surface of the placing table (16), and a second valve (1301) is connected to the water inlet pipe (13).

8. A natural gas energy-saving and gas-saving device for a university cafeteria according to claim 7, characterized in that: The lower surface of the placing table (16) is connected to the food heating box (1), and the front surface of the food heating box (1) is evenly spaced with first door panels (15), one side of the outer surface of the first door panel (15) is symmetrically connected to a first hinge (1502) up and down, one side of the rear surface of the first hinge (1502) is connected to the front surface of the food heating box (1), and the middle part of the other side of the outer surface of the first door panel (15) is connected to a first protruding handle (1501).

9. A natural gas energy-saving and gas-saving device for a university cafeteria according to claim 8, characterized in that: Universal casters (11) are evenly spaced on both sides of the lower surface of the food heating box (1), and the upper surface of the work-shaped seat (1101) connected to the upper surface of the universal caster (11) is connected to the lower surface of the food heating box (1).

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