阅读说明：本技术 一种具有自动加温功能的保温箱 (Insulation can with automatically, heat function ) 是由 张晶晶 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种具有自动加温功能的保温箱,包括箱体,所述箱体的内表面对称固定连接有电热丝,所述箱体靠近其底部的内表面开设有放置槽,所述箱体靠近放置槽的下表面固定连接有水银管,所述水银管靠近其顶端的内表面固定连接有支撑杆,所述支撑杆的表面贯穿开设有滑孔,所述滑孔的内表面滑动连接有滑杆,所述滑杆的下端端面固定连接有活塞,所述滑杆的顶端端面固定连接有磁铁,所述活塞与水银管的内表面滑动连接设置。本发明涉及食品保温技术领域,通过水银管内水银的热胀冷缩原理,推动活塞上下移动,从而使磁铁可以靠近与远离电阻器,改变电阻器电阻值的大小,便于自动调节电热丝的发热量,从而可以很好的对食品进行保温。(The invention discloses an insulation can with an automatic heating function, which comprises a case body, wherein electric heating wires are symmetrically and fixedly connected to the inner surface of the case body, a placing groove is formed in the inner surface of the case body, which is close to the bottom of the case body, a mercury tube is fixedly connected to the lower surface of the case body, which is close to the placing groove, a supporting rod is fixedly connected to the inner surface of the mercury tube, which is close to the top of the mercury tube, a sliding hole is formed in the surface of the supporting rod in a penetrating mode, a sliding rod is slidably connected to the inner surface of the sliding hole, a piston is fixedly connected to the end face of the lower end of the sliding rod, a magnet is fixedly connected to the end face of the top end of the sliding rod, and the piston is slidably connected with the inner surface of the mercury tube. The invention relates to the technical field of food heat preservation, and pushes a piston to move up and down by the principle of expansion with heat and contraction with cold of mercury in a mercury tube, so that a magnet can be close to and far away from a resistor, the resistance value of the resistor is changed, the heating value of an electric heating wire is convenient to automatically adjust, and the food can be well preserved with heat.)

1. An insulation can with an automatic heating function comprises a case body (1) and is characterized in that electric heating wires (2) are symmetrically and fixedly connected to the inner surface of the case body (1), a placing groove (3) is formed in the inner surface of the case body (1) close to the bottom of the case body, a mercury tube (4) is fixedly connected to the lower surface of the case body (1) close to the placing groove (3), a supporting rod (5) is fixedly connected to the inner surface of the mercury tube (4) close to the top end of the mercury tube, a sliding hole is formed in the surface of the supporting rod (5) in a penetrating mode, a sliding rod (7) is slidably connected to the inner surface of the sliding hole, a piston (6) is fixedly connected to the lower end face of the sliding rod (7), a magnet (9) is fixedly connected to the top end face of the sliding rod (7), the piston (6) is slidably connected with the inner surface of the mercury tube (4), a resistor (10) is fixedly connected to the inner surface of the placing groove (3) close to the magnet (9), magnet (9) are located the setting under resistor (10), the surface cover of slide bar (7) is equipped with spring (8), the one end of spring (8) with the lower surface of bracing piece (5) offsets, the other end of spring (8) with the upper surface of piston (6) offsets, resistor (10), heating wire (2) adopt electric connection's mode to be connected with external power supply.

2. Incubator with automatic warming function according to claim 1, wherein said cabinet (1) is rotatably connected with a rotary shaft (11) on its upper surface near its back, said cabinet (1) is rotatably connected with a sealing cover (12) near said rotary shaft (11).

3. The incubator according to claim 2, wherein the outer surface of the sealing cover (12) is fixedly connected with an elastic hook (16), and the bottom of the elastic hook (16) is of a slope structure.

4. Incubator according to claim 3, characterised in that said cabinet (1) has snap-in means (15) integrally formed on its external surface close to said elastic snap hooks (16).

5. Incubator with automatic warming function according to claim 1, wherein said magnet (9) has a diameter smaller than the inner diameter of the mercury tube (4).

6. The incubator with the automatic heating function according to claim 2, wherein a C-shaped sealing ring (13) is fixedly connected to a surface of the sealing cover (12) close to the case body (1), and a sealing groove (14) matched with the shape and size of the C-shaped sealing ring (13) is formed on the upper surface of the case body (1).

Technical Field

The invention relates to the technical field of food heat preservation, in particular to an incubator with an automatic heating function.

Background

With the improvement of living standard and the leap of the catering industry, take-out serves as a new profit growth point of the catering industry, and the family and family can enjoy various delicacies together to form a healthy and natural life style, so that the food is popular in developed countries abroad and is increasingly popularized in China. The heat preservation box is concerned by families and the catering industry with the concepts of safety, environmental protection, good heat preservation effect and convenient use. In daily use, when people can not eat food in time due to various reasons after the food is cooked, people can put the cooked food into the heat preservation box for heat preservation, but the heat preservation time of the existing heat preservation box is short, and once the food is cooled, the heat preservation can not be carried out continuously.

Therefore, we propose an incubator with an automatic heating function to solve the above problems.

Disclosure of Invention

The invention aims to solve the problems that in daily use, when people can not eat food in time due to various reasons after the food is cooked, people can put the cooked food into an insulation can for insulation, but the existing insulation can has short insulation time and cannot keep the insulation once the food is cooled, and the insulation can with the automatic heating function is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

an insulation can with an automatic heating function comprises a box body, wherein heating wires are symmetrically and fixedly connected to the inner surface of the box body, a placing groove is formed in the inner surface of the box body, which is close to the bottom of the box body, a mercury tube is fixedly connected to the lower surface of the box body, which is close to the placing groove, a supporting rod is fixedly connected to the inner surface of the mercury tube, which is close to the top of the mercury tube, a sliding hole is formed in the surface of the supporting rod in a penetrating mode, a sliding rod is slidably connected to the inner surface of the sliding hole, a piston is fixedly connected to the lower end face of the sliding rod, a magnet is fixedly connected to the top end face of the sliding rod, the piston is slidably connected with the inner surface of the mercury tube, a resistor is fixedly connected to the inner surface of the placing groove, which is close to the magnet, the magnet is arranged right below the resistor, a spring is sleeved on the outer surface of the sliding rod, one end of the spring abuts against the lower surface of the supporting rod, the other end of the spring is abutted against the upper surface of the piston, and the resistor, the heating wire and the external power supply are connected in an electric connection mode.

Preferably, the upper surface of the box body close to the back of the box body is rotatably connected with a rotating shaft, and the box body close to the rotating shaft is rotatably connected with a sealing cover.

Preferably, the outer surface of the sealing cover is fixedly connected with an elastic hook, and the bottom of the elastic hook is arranged in an inclined plane structure.

Preferably, the outer surface of the box body close to the elastic hook is integrally formed with a clamping block.

Preferably, the diameter of the magnet is smaller than the inner diameter of the mercury tube.

Preferably, a surface of the sealing cover close to the box body is fixedly connected with a C-shaped sealing ring, and a sealing groove matched with the C-shaped sealing ring in shape and size is formed in the upper surface of the box body.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention is through the arrangement of the components such as the box body, the electric heating wire, the mercury tube, the piston, the slide bar, the magnet, the resistor and the like, when a user puts prepared food into the box body, the sealing cover is closed, through the mercury in the mercury tube arranged in the box body, when the temperature of the food in the box body is higher and the electric heating wire is not needed to heat the food, according to the principle of expansion with heat and contraction with cold, the mercury in the mercury tube expands with heat when the object is heated, thereby pushing the piston in the mercury tube to move upwards, the slide bar fixedly connected with the top of the piston pushes the magnet to be close to the resistor, according to the magnetoresistance effect, the resistance value of some metals or semiconductors can change along with the change of an external magnetic field, when the magnet is close to the resistor, the resistance value of the resistor can be increased, so that the current passing through the resistor can be decreased, therefore, the heating quantity of the electric heating wire can be reduced, the food is prevented from being heated by the electric heating wire, and the use taste of the food is prevented from being damaged;

2. when food in the box body is slowly cooled along with the increase of time, mercury in the mercury tube shrinks along with the reduction of temperature, so that the piston moves downwards under the thrust of the spring, the sliding rod pulls the magnet to be away from the resistor, at the moment, the resistance value of the resistor becomes small, the current flowing through the resistor becomes large, the electric heating wire can work by heating, the food in the box body is heated and insulated, and the food in the box body is prevented from being cooled to influence the eating taste;

3. the elastic clamping hook is arranged on the surface of the sealing cover, and when the sealing cover is closed, the elastic clamping hook can be clamped with a clamping block arranged on the outer surface of the box body, so that the sealing cover is connected with the box body, and the sealing of the sealing cover is prevented from being not tight, and the loss of the temperature in the box body is prevented;

4. through set up C shape sealing washer on sealed lid surface, when closing sealed lid for in the seal groove of seting up on the box can be blocked into to C shape sealing washer, thereby make C shape sealing washer reach the heat preservation effect to the temperature in the box, strengthen the thermal insulation performance of box, the heat preservation time of extension to food.

Drawings

Fig. 1 is a schematic view of the overall structure of an incubator with an automatic heating function according to the present invention;

FIG. 2 is a schematic cross-sectional structural view of a cabinet of an incubator with an automatic heating function according to the present invention;

FIG. 3 is a schematic cross-sectional structural view of a cabinet of an incubator with an automatic warming function according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is a schematic structural view of a mercury tube of an incubator with an automatic heating function according to the present invention;

fig. 6 is an enlarged view of the structure at B in fig. 1.

In the figure: 1. a box body; 2. an electric heating wire; 3. a placement groove; 4. a mercury tube; 5. a support bar; 6. a piston; 7. a slide bar; 8. a spring; 9. a magnet; 10. a resistor; 11. a rotating shaft; 12. a sealing cover; 13. a C-shaped sealing ring; 14. a sealing groove; 15. a clamping block; 16. an elastic hook.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1-6, an insulation can with an automatic heating function comprises a case body 1, wherein an electric heating wire 2 is symmetrically and fixedly connected to the inner surface of the case body 1, a placing groove 3 is formed in the inner surface of the case body 1 close to the bottom of the case body, a mercury tube 4 is fixedly connected to the lower surface of the case body 1 close to the placing groove 3, a supporting rod 5 is fixedly connected to the inner surface of the mercury tube 4 close to the top of the mercury tube, a sliding hole is formed in the surface of the supporting rod 5 in a penetrating mode, a sliding rod 7 is slidably connected to the inner surface of the sliding hole, a piston 6 is fixedly connected to the lower end face of the sliding rod 7, a magnet 9 is fixedly connected to the top end face of the sliding rod 7, the piston 6 is slidably connected to the inner surface of the mercury tube 4, a resistor 10 is fixedly connected to the inner surface of the placing groove 3 close to the magnet 9, the magnet 9 is arranged under the resistor 10, a spring 8 is sleeved on the outer surface of the sliding rod 7, one end of the spring 8 is abutted to the lower surface of the supporting rod 5, the other end of the spring 8 abuts against the upper surface of the piston 6, the resistor 10 and the heating wire 2 are electrically connected with an external power supply, and the specific connection mode and the working principle of a plurality of electrical components are well known in the art and are not described in detail herein.

Preferably, the upper surface of the box body 1 near the back thereof is rotatably connected with a rotating shaft 11, and the box body 1 near the rotating shaft 11 is rotatably connected with a sealing cover 12; the temperature in the box body 1 is sealed through the sealing cover 2, and the heat preservation time of food is prolonged.

Preferably, the outer surface of the sealing cover 12 is fixedly connected with an elastic hook 16, and the bottom of the elastic hook 16 is arranged in an inclined plane structure; by arranging the elastic clamping hook 16 on the surface of the sealing cover 12, when the sealing cover 12 is closed, the elastic clamping hook 16 can be clamped with the clamping block 15 arranged on the outer surface of the box body 1, so that the sealing cover 12 is connected with the box body 1, and the sealing cover 12 is prevented from being not tightly closed, and the loss of the temperature in the box body 1 is prevented.

Preferably, the outer surface of the box body 1 close to the elastic hook 16 is integrally formed with a latch 15, which is convenient for latching the elastic hook 16.

Preferably, the diameter of the magnet 9 is smaller than the inner diameter of the mercury tube 4, so as to prevent the magnet 9 from contacting with the inner wall of the mercury tube 4 to increase friction force and influence the up-and-down movement of the magnet 9.

In the invention, when in use, the power supply is switched on, when a user puts prepared food into the box body 1, the sealing cover 12 is closed, and through mercury in the mercury tube 4 arranged in the box body 1, when the temperature of the food in the box body 1 is higher and the heating wire 2 is not needed to heat the food, according to the principle of expansion with heat and contraction with cold, the mercury in the mercury tube 4 expands with heat due to the characteristic that the object expands when heated and contracts when cooled, so that the piston 6 in the mercury tube 4 is pushed to move upwards, the sliding rod 7 fixedly connected with the top of the piston 6 pushes the magnet 9 to be close to the resistor 10, according to the magnetic resistance effect, the resistance value of some metals or semiconductors can change along with the change of an external magnetic field, when the magnet 9 is close to the resistor 10, the resistance value of the resistor 10 becomes larger, so that the current passing through the resistor 10 becomes smaller, thereby the heating value of the heating wire 2 can be reduced, the food is prevented from being heated by the electric heating wire 2, so that the use taste of the food is prevented from being damaged; when the food in the box body 1 is slowly cooled along with the increase of time, mercury in the mercury tube 4 shrinks along with the reduction of temperature, so that the piston 6 moves downwards under the thrust of the spring 8, the magnet 9 is pulled by the slide rod 7 to be far away from the resistor 10, at the moment, the resistance value of the resistor 10 is reduced, the current flowing through the resistor 10 is increased, the electric heating wire 2 can work in a heating mode, the food in the box body 1 is heated and insulated, and the food in the box body 1 is prevented from being cooled to influence the eating taste; by arranging the elastic clamping hook 16 on the surface of the sealing cover 12, when the sealing cover 12 is closed, the elastic clamping hook 16 can be clamped with the clamping block 15 arranged on the outer surface of the box body 1, so that the sealing cover 12 is connected with the box body 1, and the sealing cover 12 is prevented from being not tightly closed, and the loss of the temperature in the box body 1 is prevented.

Example two:

referring to fig. 1 and 2, the difference from the first embodiment is that: a C-shaped sealing ring 13 is fixedly connected to one surface of the sealing cover 12 close to the box body 1, and a sealing groove 14 matched with the C-shaped sealing ring 13 in shape and size is formed in the upper surface of the box body 1; through set up C shape sealing washer 13 on sealed lid 12 surface, when closing sealed lid 12 for C shape sealing washer 13 can be blocked in the seal groove 14 of seting up on the box 1, thereby makes C shape sealing washer 13 reach the heat preservation effect to the temperature in the box 1, strengthens the thermal insulation performance of box 1, prolongs the heat preservation time to food.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.