Automatic defrosting device for refrigeration house

Abstract

The automatic defrosting device comprises a heating box, a defrosting shovel and an anti-jamming defrosting mechanism, a heating source is arranged in a heating cavity in the defrosting shovel, and a plurality of spikes are arranged at the tail end of a shovel blade in the defrosting shovel; according to the automatic defrosting device for the refrigeration house, air is input into the heating cavity and the heating box through the air pump and the air guide pipe respectively, the first heating pipe and the second heating pipe are used for heating and defrosting the air entering the heating cavity and the heating box respectively, and the air in the heating cavity and the heating box is heated through the linear telescopic movement of the piston rod in the telescopic cylinder in the anti-jamming defrosting mechanism. The defrosting shovel is used for driving the plum blossom plate to do linear reciprocating motion, the defrosting shovel is continuously pulled in a reciprocating mode through the first sliding rod and the spring to continuously impact and shovel the defrosting block, hot air defrosting and mechanical defrosting are combined, the defrosting efficiency of the defrosting shovel is improved, the defrosting shovel is driven by the motor and the screw to move, manpower is liberated, and the defrosting efficiency is improved. Automatic deicing and defrosting of the defrosting shovel are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold storage, in particular to an automatic defrosting device for cold storage. Background Art

[0002] Cold storage is mainly used as constant temperature storage cooling equipment for food, dairy products, meat, aquatic products, chemicals, medicine, seedling cultivation, scientific experiments, etc. After long-term use of existing cold storage, frost forms on the surface of the evaporator in the cold storage, which hinders the conduction and distribution of cold energy of the refrigeration evaporator (pipeline), and ultimately affects the refrigeration effect. When the thickness of the frost layer (ice layer) on the surface of the evaporator reaches a certain level, the refrigeration efficiency even drops to below 30%, resulting in a large waste of electricity and shortening the service life of the refrigeration system.

[0003] There are several ways to defrost a cold storage: hot air defrosting (hot fluorine defrosting, hot ammonia defrosting), water spray defrosting, electrical defrosting, mechanical (manual) defrosting, etc. The above mechanical defrosting is the most primitive method of manual defrosting. However, the defrost shovel used for mechanical defrosting has a simple structure and poor ice-breaking ability. In view of this, we propose an automatic defrosting device for a cold storage. Utility Model Content

[0004] The utility model aims to solve the problems of simple structure and poor ice breaking ability of the defrosting shovel used for mechanical defrosting in the prior art, and proposes an automatic defrosting device for cold storage.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic defrosting device for a cold storage, comprising:

[0007] The heating box is driven by a power source to move on a preset defrosting track in the cold storage for heating and defrosting;

[0008] A defrosting shovel is installed on one side of the heating box, a heating source is provided in a heating cavity of the defrosting shovel, and a plurality of spikes are provided at the end of a shovel blade of the defrosting shovel;

[0009] The anti-stuck defrosting mechanism is installed between the heating box and the defrosting shovel.

[0010] Preferably, a heating tube 2 is installed in the heating box, an air pump is installed on the heating box, and a plurality of air outlet nozzles are connected to the bottom of the heating box.

[0011] Preferably, the power source comprises a motor and a screw, the output shaft of the motor is connected to the screw via a coupling, and guide rods parallel to each other are provided on one side of the screw.

[0012] Preferably, the anti-stuck defrost mechanism includes two guide cylinders 2 and two round blocks, the screw is installed in the threaded holes in the two round blocks, the guide rod is installed in the guide holes in the two guide cylinders 2, a crescent plate and a connecting plate are respectively installed below the two guide cylinders 2, and the crescent plate and the connecting plate are respectively installed below the two round blocks, and a plurality of sliding rods 2 parallel to each other are installed between the crescent plate and the connecting plate.

[0013] Preferably, a guide cylinder 1 is provided on the periphery of the slide rod 2, a plum blossom plate is installed between several of the guide cylinders 1, several slide rods 1 are provided on one side of the plum blossom plate, an inner hole guide block 1 is installed on the periphery of the slide rod 1, a spring is installed between the inner hole guide block 1 and the plum blossom plate, and a telescopic cylinder is installed between the plum blossom plate and the crescent plate.

[0014] Preferably, the defrost shovel includes a cover plate and a shovel body, the cover plate is installed on the shovel body, the heating chamber is arranged in the shovel body, the inner hole guide block is installed on the cover plate, the heating source includes a heating tube, a sealing strip is provided on one side of the heating chamber, a plurality of air holes are provided on the sealing strip, an air pipe joint is provided on one side of the shovel body, a plurality of through holes are provided on the shovel body, and the plurality of through holes are respectively provided between the plurality of spikes.

[0015] Compared with the prior art, the utility model provides an automatic defrosting device for cold storage, which has the following beneficial effects:

[0016] 1. The automatic defrosting device for cold storage inputs gas into the heating chamber and the heating box through an air pump and an air guide pipe respectively, and the incoming gas is heated by heating tube 1 and heating tube 2. The heated gas blows out hot air through a plurality of air holes and a plurality of air outlet nozzles to perform heating and defrosting.

[0017] 2. The automatic defrosting device for cold storage drives the plum blossom plate to move back and forth in a straight line through the linear telescopic movement of the piston rod in the telescopic cylinder of the anti-stuck defrosting mechanism, and continuously pulls the defrost shovel back and forth through the slide bar and the spring to continuously impact and shovel away the frost blocks, and in the process of the defrost shovel retreating, prevents the spikes and shovel blade in the defrost shovel from being stuck in the frost blocks. At the same time, when the spikes and the shovel blade are against the frost blocks, the elastic tension of the spring itself prevents excessive squeezing and breakage between the spikes, the shovel blade and the frost blocks, thereby increasing the service life of the defrost shovel.

[0018] 3. The automatic defrosting device for cold storage uses a number of spikes arranged in a herringbone shape to shovel ice or frost. The sharp spikes at the tip first pierce into the frost or ice block individually to divide the entire frost or ice block into fragments, which is easier to break ice than the traditional shovel that directly inserts into the frost or ice block. Then, as the shovel blade in the defrosting shovel is inserted between the frost or ice block and the inner wall surface of the cold storage, the remaining frost or ice block can be quickly shoveled away, and the hot air is blown out by the above-mentioned several air holes and several air outlets to heat and melt, combining hot air defrosting and mechanical defrosting, increasing the defrosting efficiency of the defrosting shovel, and the defrosting shovel is driven by a motor and a screw to move, freeing up manpower and realizing automatic defrosting and defrosting of the defrosting shovel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of an automatic defrosting device for cold storage proposed by the utility model;

[0020] Figure 2 This is a cross-sectional view of an automatic defrosting device for cold storage proposed by the utility model;

[0021] Figure 3 This is a structural schematic diagram of an anti-stuck defrosting mechanism in an automatic defrosting device for a cold storage proposed by the utility model;

[0022] Figure 4 The utility model discloses an exploded view of a defrosting shovel in an automatic defrosting device for a cold storage.

[0023] In the figure:

[0024] 1. Heating box;

[0025] 2. Air pump;

[0026] 3. Screw;

[0027] 4. Motor;

[0028] 5. Guide rod;

[0029] 6. Anti-stuck defrosting mechanism; 601. Inner hole guide block 1; 602. Plum blossom plate; 603. Slide bar 1; 604. Spring; 605. Guide cylinder 1; 606. Telescopic cylinder; 607. Crescent plate; 608. Slide bar 2; 609. Connecting plate; 610. Guide cylinder 2; 611. Round block; 612. Threaded hole; 613. Guide hole;

[0030] 7. defrosting shovel; 701. cover plate; 702. heating tube 1; 703. sealing strip; 704. air hole; 705. shovel body; 706. air pipe joint; 707. spike; 708. shovel blade; 709. heating chamber; 710. perforation;

[0031] 8. Heating tube 2;

[0032] 9. Vent. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0035] Reference Figure 1-4 , an automatic defrosting device for a cold storage comprises a defrosting shovel 7, which comprises a cover plate 701 and a shovel body 705. The cover plate 701 is fixedly mounted on the shovel body 705. A shovel blade 708 bent at an obtuse angle is fixedly connected to the end of the shovel body 705. The shovel blade 708 and the shovel body 705 are bent at an obtuse angle to reduce the contact area between the shovel body 705 and the frost or ice blocks on the cold storage. A plurality of spikes 707 parallel to each other are fixedly connected to the end of the shovel blade 708. The plurality of spikes 707 are arranged in a herringbone shape. When the plurality of spikes 707 are used to scrape ice or frost, the sharp spikes 707 at the tip first pierce into the frost or ice block individually to divide the entire frost or ice block into fragments, which is easier to break ice than the traditional shovel blade directly inserted into the frost or ice block. Then, as the shovel blade 708 in the defrosting shovel 7 is inserted between the frost or ice block and the inner wall surface of the cold storage, the residual frost or ice block can be quickly scraped off.

[0036] In this embodiment, a heating chamber 709 is provided in the defrost shovel 7, and a heating source is provided in the heating chamber 709. The heating source is composed of a heating tube 702, and the heating tube 702 is fixedly installed in the heating chamber 709. A sealing strip 703 is provided on one side of the heating chamber 709. The sealing strip 703 is closed and fixedly installed between the cover plate 701 and the shovel body 705. A plurality of air holes 704 are provided on the sealing strip 703, and the plurality of air holes 704 are respectively opposite to a plurality of spikes 707. An air pipe joint 706 is fixedly connected to one side of the shovel body 705, and the air pipe joint 706 and the heating chamber 709 are connected to each other. A plurality of through holes 710 are provided on the shovel body 705, and the plurality of through holes 710 are respectively arranged on the shovel body 705 between the plurality of spikes 707.

[0037] It should be added that gas is input into the heating chamber 709 through the air pipe joint 706, and the entering gas is heated by the heating tube 702. The heated gas is blown to the gaps between the several spikes 707 through the several air holes 704, and is used to heat and defrost the several spikes 707 and the shovel blade 708 at the end of the defrost shovel 7, thereby combining hot air defrosting and mechanical defrosting to increase the defrosting efficiency of the defrost shovel 7.

[0038] In this embodiment, an anti-stuck defrost mechanism 6 is provided above the defrost shovel 7, and the anti-stuck defrost mechanism 6 includes two guide cylinders 610 and two round blocks 611. The screw 3 is threadedly installed in the threaded holes 612 in the two round blocks 611, and the guide rod 5 is slidably installed in the guide holes 613 in the two guide cylinders 610. A crescent plate 607 and a connecting plate 609 are fixedly installed below the two guide cylinders 610, and the crescent plate 607 and the connecting plate 609 are fixedly installed below the two round blocks 611, and a plurality of parallel sliding rods 608 are fixedly installed between the crescent plate 607 and the connecting plate 609.

[0039] In this embodiment, a guide cylinder 605 is slidably installed on the periphery of the slide rod 608, a plum blossom plate 602 is fixedly installed between several guide cylinders 605, several slide rods 603 are fixedly installed on one side of the plum blossom plate 602, an inner hole guide block 601 is horizontally slidably installed on the periphery of the slide rod 603, the inner hole guide block 601 is fixedly installed on the cover plate 701, a spring 604 is installed between the inner hole guide block 601 and the plum blossom plate 602, the two ends of the spring 604 are respectively fixedly connected to the inner hole guide block 601 and the plum blossom plate 602, a telescopic cylinder 606 is installed between the plum blossom plate 602 and the crescent plate 607, the telescopic cylinder 606 in the present application specifically adopts an electric push cylinder, the base in the telescopic cylinder 606 is fixedly connected to the plum blossom plate 602, and the piston rod in the telescopic cylinder 606 is fixedly connected to the crescent plate 607.

[0040] In this embodiment, a heating box 1 is installed above the two round blocks 611 and the two guide cylinders 610. The heating box 1 is driven by a power source to move on a preset defrosting track in the cold storage for heating and defrosting. A heating tube 8 is installed in the heating box 1, and an air pump 2 is fixedly installed on the heating box 1. The air outlet end of the air pump 2 is fixedly connected to the inner cavity of the heating box 1 and the air pipe joint 706 through a conduit. A plurality of air outlet nozzles 9 are fixedly connected to the bottom of the heating box 1. The plurality of air outlet nozzles 9 are respectively facing the defrosting shovel 7 and the frost or ice blocks on the inner wall of the cold storage. The power source includes a motor 4 and a screw 3. The output shaft of the motor 4 is fixedly connected to the screw 3 through a coupling. A guide rod 5 parallel to each other is provided on one side of the screw 3. The guide rod 5 is fixedly connected to the cold storage, the screw 3 is rotatably connected to the cold storage, the motor 4 is fixedly connected to the cold storage, and the guide rod 5 is installed in parallel at the above-mentioned preset track in the cold storage.

[0041] It is further supplemented that the motor 4, the telescopic cylinder 606, the heating tube 1 702 and the heating tube 2 8 are connected to an external power source through a plurality of wires respectively.

[0042] In the utility model, when the automatic defrosting device for cold storage is used to defrost and de-ice the cold storage, firstly, the frost and ice blocks contacted by the defrosting shovel 7 are defrosted and defrosted. Specifically, gas is input into the heating chamber 709 and the heating box 1 respectively through the air pump 2 and the air guide pipe, and the incoming gas is heated by the heating tube 1 702 and the heating tube 2 8. The heated gas blows out hot gas through a plurality of air holes 704 and a plurality of air outlet nozzles 9 to perform heating and defrosting. When the frost on the defrosting shovel 7 is removed, the motor is then used to blow the frost and ice blocks on the cold storage. The output shaft of 4 drives the screw rod 3 to rotate, and drives the anti-stuck defrosting mechanism 6 to move along the guide rod 5 through the two round blocks 611 connected by threads, so as to remove the frost blocks at the preset track in the cold storage, and then drives the plum blossom plate 602 to move back and forth in a straight line through the linear telescopic movement of the piston rod in the telescopic cylinder 606, and continuously pulls the defrosting shovel 7 back and forth through the sliding rod 603 and the spring 604 to continuously impact and remove the frost blocks, and in the process of the defrosting shovel 7 retreating, the defrosting shovel 7 is prevented from The spikes 707 and the shovel blades 708 are stuck in the frost block. At the same time, when the spikes 707 and the shovel blades 708 are pressed against the frost block, the elastic tension of the spring 604 itself prevents the spikes 707, the shovel blades 708 and the frost block from being excessively squeezed and broken, thereby increasing the service life of the defrosting shovel 7. When the spikes 707 arranged in a herringbone shape are scraping ice or frost, the sharp spikes 707 at the tip first pierce the frost block or ice block individually to split the entire frost block or ice block into fragments, which is more convenient than the traditional shovel blade directly inserting the frost block or ice block into the frost block. The defrost shovel 7 can be easily moved into the frost or ice blocks, and the frost or ice blocks can be easily broken. Then, as the shovel blade 708 in the defrost shovel 7 is inserted between the frost or ice blocks and the inner wall surface of the cold storage, the residual frost or ice blocks can be quickly shoveled away, and the hot air is blown out by the above-mentioned several air holes 704 and several air outlet nozzles 9 to heat and melt them. The hot air defrosting and mechanical defrosting are combined with each other to increase the defrosting efficiency of the defrost shovel 7. The defrost shovel 7 is driven by the motor 4 and the screw 3 to move, freeing up manpower and realizing the automatic defrosting and defrosting of the defrost shovel 7.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic defrosting device for cold storage, characterized in that: include: A heating box (1) is driven by a power source to move on a preset defrosting track in the cold storage for heating and defrosting; A defrosting shovel (7) is installed on one side of the heating box (1), a heating source is provided in a heating cavity (709) in the defrosting shovel (7), and a plurality of spikes (707) are provided at the end of a shovel blade (708) in the defrosting shovel (7); An anti-stuck defrosting mechanism (6) is installed between the heating box (1) and the defrosting shovel (7).

2. The automatic defrosting device for cold storage according to claim 1, characterized in that: A heating tube 2 (8) is installed in the heating box (1), an air pump (2) is installed on the heating box (1), and a plurality of air outlet nozzles (9) are connected to the bottom of the heating box (1).

3. The automatic defrosting device for cold storage according to claim 1, characterized in that: The power source comprises a motor (4) and a screw (3); the output shaft of the motor (4) is connected to the screw (3) via a coupling; and one side of the screw (3) is provided with guide rods (5) parallel to each other.

4. The automatic defrosting device for cold storage according to claim 3, characterized in that: The anti-stuck defrosting mechanism (6) comprises two guide cylinders (610) and two round blocks (611), the screw rod (3) is installed in the threaded hole (612) in the two round blocks (611), the guide rod (5) is installed in the guide hole (613) in the two guide cylinders (610), a crescent plate (607) and a connecting plate (609) are respectively installed below the two guide cylinders (610), and the crescent plate (607) and the connecting plate (609) are respectively installed below the two round blocks (611), and a plurality of parallel sliding rods (608) are installed between the crescent plate (607) and the connecting plate (609).

5. The automatic defrosting device for cold storage according to claim 4, characterized in that: A guide cylinder (605) is provided on the periphery of the slide rod (608), a plum blossom plate (602) is installed between a plurality of the guide cylinders (605), a plurality of slide rods (603) are provided on one side of the plum blossom plate (602), an inner hole guide block (601) is installed on the periphery of the slide rod (603), a spring (604) is installed between the inner hole guide block (601) and the plum blossom plate (602), and a telescopic cylinder (606) is installed between the plum blossom plate (602) and the crescent plate (607).

6. The automatic defrosting device for cold storage according to claim 5, characterized in that: The defrost shovel (7) includes a cover plate (701) and a shovel body (705), the cover plate (701) is installed on the shovel body (705), the heating chamber (709) is arranged in the shovel body (705), the inner hole guide block (601) is installed on the cover plate (701), the heating source includes a heating tube (702), a sealing strip (703) is provided on one side of the heating chamber (709), a plurality of air holes (704) are provided on the sealing strip (703), an air pipe joint (706) is provided on one side of the shovel body (705), and a plurality of through holes (710) are provided on the shovel body (705), and the plurality of through holes (710) are respectively arranged between the plurality of spikes (707).

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