A semi-automatic defrosting device for a single-door refrigerator

Abstract

This utility model discloses a semi-automatic defrosting device for a single-door refrigerator, relating to the field of refrigerator defrosting technology. It includes a scraper, with a separation component at the top of the scraper. The separation component includes a movable rod rotatably connected to the outer wall of the scraper's top. A toothed blade is fixedly connected to the end of the movable rod away from the scraper. A clearance groove is formed at one end of the scraper, and the toothed blade is located inside the clearance groove, with its bottom wall on the same horizontal plane as the scraper's bottom wall. A mounting cover is fixedly connected to the outer wall of the scraper's top. A crushing component is fixedly connected to the outside of the mounting cover. The crushing component includes an extension sleeve fixedly connected to one side of the outer wall of the mounting cover. A mounting rod is rotatably connected to the end of the extension sleeve near the toothed blade. This utility model, by setting a separation component, can automatically and quickly peel off frost buildup at the junction with the refrigerator's inner wall. The user only needs to guide the device, requiring minimal physical effort and making it convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator defrosting technology, specifically a semi-automatic defrosting device for a single-door refrigerator. Background Technology

[0002] In a single-door direct-cooling refrigerator, when air containing water vapor enters the refrigerator with the opening of the door, or when moisture evaporates due to unsealed food, this water vapor condenses on the cool surface of the evaporator. As the temperature continues to drop, the water vapor directly changes from a gaseous state to a solid state, sublimating into frost in low-temperature areas such as the evaporator and the back wall of the refrigerator compartment. Frost buildup reduces cooling efficiency, increases energy consumption, and can also breed bacteria, affecting food storage. Therefore, regular defrosting is essential.

[0003] A search revealed a utility model patent with Chinese patent publication number CN205079528U, which discloses a refrigerator defrosting scraper, including a scraper blade and a handle. The scraper blade is fixedly connected to the handle. The front end of the scraper blade is a scraper head, which is bent downwards. Multiple sets of protruding ridges are provided at the scraper head. The protruding ridges are parallel to each other and the gaps between the protruding ridges are equal. A reinforcing rib is provided at the connection between the scraper blade and the handle. The handle is provided with a hanging hole, which is located at the tail of the handle.

[0004] When using the above device, if the frost inside the refrigerator is thin, it is relatively easy to remove directly. However, if the frost is thick, it requires a lot of physical effort and may even be too hard to remove. There is room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide a semi-automatic defrosting device for a single-door refrigerator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a semi-automatic defrosting device for a single-door refrigerator, comprising a scraper, a separation component at the top of the scraper, the separation component including a movable rod rotatably connected to the outer wall of the top of the scraper, a toothed blade fixedly connected to the end of the movable rod away from the scraper, a clearance groove opened at one end of the scraper, the toothed blade located inside the clearance groove, and the bottom wall of the toothed blade and the bottom wall of the scraper being on the same horizontal plane, a mounting cover fixedly connected to the outer wall of the top of the scraper, a crushing component fixedly connected to the outside of the mounting cover, the crushing component including an extension sleeve fixedly connected to one side of the outer wall of the mounting cover, a mounting rod rotatably connected to the end of the extension sleeve near the toothed blade, a plurality of equally spaced blades fixedly connected to the outer circumference of the mounting rod, and a transmission structure provided inside the mounting cover for driving the movable rod to swing and the mounting rod to rotate.

[0007] It can automatically and quickly peel off frost from the connection between the frost and the inner wall of the refrigerator. The user only needs to guide it, without expending too much physical effort. It is easy to use. The gear rod drives the drive rod to rotate through the bevel gear meshing with it. The drive column fixed to the end of the drive rod will revolve around the drive rod. When the drive column contacts the inner wall of one side of the receiving slot, one end of the movable rod will be driven to swing to one side. Then the drive column contacts the inner wall of the other side of the receiving slot, and the movable rod will swing to the other side. The toothed blade that swings quickly from side to side can cut off the root of the frost. The user only needs to grasp the scraper to adjust the direction. The operation process is easy and convenient.

[0008] As a further preferred embodiment of this technical solution, the transmission structure includes a motor fixedly connected to the inner wall of one end of the mounting cover. The output end of the motor and the outside of the mounting rod are both coaxially fixed with a sprocket. The two sprockets are fitted with the same first chain. The output end of the motor is provided with a linkage structure.

[0009] As a further preferred embodiment of this technical solution, the linkage structure includes a second sprocket coaxially fixed to the output end of the motor, a gear rod rotatably connected to the inner wall of the other end of the mounting cover, a second sprocket coaxially fixed to the outside of the gear rod, the two second sprockets being fitted with the same second chain, a drive rod rotatably connected to the inner wall of one side of the mounting cover, a bevel gear coaxially fixed to the outside of the drive rod and meshing with the gear rod, a drive column eccentrically fixed to the end of the drive rod near the movable rod, a vertically arranged receiving groove being opened inside the movable rod, and the drive column being located inside the receiving groove.

[0010] During the rotation of the motor, the sprocket connected to the output end of the motor is driven to rotate. This sprocket drives another sprocket to rotate through the first chain. The other sprocket drives the mounting rod to rotate at the end of the extension sleeve. The mounting rod drives the cutter head to make a circular motion. When the cutter head is close to the frosted part, the frost will be lifted up from top to bottom, so that the device can adapt to cleaning thicker frost.

[0011] As a further preferred embodiment of this technical solution, the outer tooth tips of the tooth cutter are all rounded.

[0012] As a further preferred embodiment of this technical solution, a storage slot is provided inside the mounting cover, and a storage battery is fixedly connected inside the storage slot. A switch is fixedly connected to the top outer wall of the mounting cover, and the switch is electrically connected to the motor and the storage battery through wires to control the rotation of the motor.

[0013] As a further preferred embodiment of this technical solution, the shovel, toothed blade, and blade head are all made of hard plastic.

[0014] As a further preferred embodiment of this technical solution, a protective cover is fixedly connected to the outside of the mounting cover, and the protective cover surrounds the outside of the mounting rod.

[0015] This utility model provides a semi-automatic defrosting device for a single-door refrigerator, which has the following beneficial effects: (1) By setting a separation component, this utility model can automatically and quickly peel off the frost from the connection between the frost and the inner wall of the refrigerator. The user only needs to guide it and does not need to expend too much physical strength. It is easy to use. The gear rod drives the drive rod to rotate through the bevel gear meshing with it. The drive column fixed at the end of the drive rod will revolve around the drive rod. When the drive column contacts the inner wall of one side of the receiving groove, one end of the movable rod will be driven to swing to one side. Then the drive column contacts the inner wall of the other side of the receiving groove, and the movable rod will swing to the other side. The toothed blade that swings quickly left and right can cut off the root of the frost. The user only needs to grab the scraper to adjust the direction. The operation process is easy and convenient.

[0016] (2) By setting up a crushing component, the motor rotates and the sprocket connected to the output end of the motor is driven to rotate. This sprocket drives another sprocket to rotate through the first chain. The other sprocket drives the mounting rod to rotate at the end of the extension sleeve. The mounting rod drives the cutter head to make a circular motion. When the cutter head is close to the frosted part, the frost will be lifted from top to bottom, so that the device can adapt to cleaning thicker frost. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partially enlarged structural schematic diagram of the present invention; Figure 3 This is a partially enlarged structural diagram of the separation component of this utility model; Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; In the diagram: 1. Shovel blade; 2. Mounting cover; 3. Separation assembly; 4. Crushing assembly; 5. Protective cover; 301. Movable rod; 302. Toothed blade; 303. Clearance groove; 304. Receiving groove; 305. Drive rod; 306. Drive column; 401. Extension sleeve; 402. Mounting rod; 403. Cutter head; 404. Motor; 405. Sprocket 1; 406. Gear rod; 407. Sprocket 2; 408. Bevel gear. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] This utility model provides a technical solution: such as Figure 2 As shown in Figure 4, in this embodiment, a semi-automatic defrosting device for a single-door refrigerator includes a scraper 1. The top of the scraper 1 is provided with a separation component 3. The separation component 3 includes a movable rod 301 rotatably connected to the outer wall of the top of the scraper 1. A toothed blade 302 is fixedly connected to the end of the movable rod 301 away from the scraper 1. A clearance groove 303 is opened at one end of the scraper 1. The toothed blade 302 is located inside the clearance groove 303, and the bottom wall of the toothed blade 302 is on the same horizontal plane as the bottom wall of the scraper 1. A mounting cover 2 is fixedly connected to the outer wall of the top of the scraper 1. A crushing component 4 is fixedly connected to the outside of the mounting cover 2. The crushing component 4 includes an extension sleeve 401 fixedly connected to the outer wall of one side of the mounting cover 2. A mounting rod 402 is rotatably connected to the end of the extension sleeve 401 near the toothed blade 302. A plurality of equally spaced blades 403 are fixedly connected to the outer circumference of the mounting rod 402. A transmission structure is provided inside the mounting cover 2 to drive the movable rod 301 to swing and the mounting rod 402 to rotate.

[0020] The transmission structure includes a motor 404 fixedly connected to the inner wall of one end of the mounting cover 2. A sprocket 405 is coaxially fixed at the output end of the motor 404 and the outside of the mounting rod 402. The two sprockets 405 are fitted with the same first chain. The output end of the motor 404 is provided with a linkage structure.

[0021] During the rotation of motor 404, sprocket 405 connected to the output end of motor 404 is driven to rotate. This sprocket 405 drives another sprocket 405 to rotate through the first chain. The other sprocket 405 drives the mounting rod 402 to rotate at the end of the extension sleeve 401. The mounting rod 402 drives the cutter head 403 to make a circular motion. When the cutter head 403 is close to the frosted part, the frost will be lifted up from top to bottom, so that the device can adapt to cleaning thicker frost.

[0022] The linkage structure includes a second sprocket 407 coaxially fixed to the output end of the motor 404, a gear rod 406 rotatably connected to the inner wall of the other end of the mounting cover 2, a second sprocket 407 coaxially fixed to the outside of the gear rod 406, the two second sprockets 407 are fitted with the same second chain, a drive rod 305 rotatably connected to the inner wall of one side of the mounting cover 2, a bevel gear 408 coaxially fixed to the outside of the drive rod 305 and meshing with the gear rod 406, a drive column 306 eccentrically fixed to one end of the drive rod 305 near the movable rod 301, a vertically arranged receiving groove 304 is opened inside the movable rod 301, and the drive column 306 is located inside the receiving groove 304.

[0023] The starter motor 404 drives a sprocket 407 connected to it to rotate. This sprocket 407 drives another sprocket 407 to rotate via a second chain. The other sprocket 407 is fixedly connected to a gear rod 406, thereby driving the gear rod 406 to rotate. The gear rod 406 drives the drive rod 305 to rotate via a bevel gear 408 meshing with it. The drive column 306 fixed to the end of the drive rod 305 will revolve around the drive rod 305. When the drive column 306 contacts one side of the inner wall of the receiving groove 304, one end of the movable rod 301 will be driven to swing to one side. Then, the drive column 306 contacts the other side of the inner wall of the receiving groove 304, and the movable rod 301 will swing to the other side. The toothed blade 302, which swings rapidly left and right, can cut off the root of the frost. The user only needs to hold the scraper 1 to adjust the direction. The operation process is easy and convenient.

[0024] like Figure 1 As shown in Figure 2, the outer tooth tips of the toothed blade 302 are all rounded to prevent scratching the inner wall of the refrigerator if the toothed blade accidentally touches it.

[0025] like Figure 2 As shown, the mounting cover 2 has a storage slot inside, and a storage battery is fixedly connected inside the storage slot. A switch is fixedly connected to the top outer wall of the mounting cover 2. The switch is electrically connected to the motor 404 and the storage battery through wires and is used to control the rotation of the motor 404.

[0026] like Figure 2 and Figure 3 As shown, the scraper 1, toothed blade 302, and blade head 403 are all made of hard plastic. This material is less hard than the material of the refrigerator's inner wall, which can further prevent damage to the refrigerator's inner wall during defrosting.

[0027] like Figure 1 As shown, a protective cover 5 is fixedly connected to the outside of the mounting cover 2. The protective cover 5 surrounds the outside of the mounting rod 402, which can prevent the user's hand from touching the blade outside the mounting rod 402.

[0028] This utility model provides a semi-automatic defrosting device for a single-door refrigerator, the specific working principle of which is as follows: When the device is working, the end of the scraper 1 with the separating component 3 is placed against the inner wall of the refrigerator. At this time, the tip of the toothed blade 302 will also be at the junction of the frosted area and the inner wall of the refrigerator, without contacting the inner wall and causing damage. The motor 404 is started to drive one of the sprockets 407 connected to it to rotate. This sprocket 407 drives another sprocket 407 to rotate through the second chain. The other sprocket 407 is fixedly connected to the gear rod 406, thereby driving the gear rod 406 to rotate. The gear rod 406 rotates through the bevel gear meshing with it. 408 drives the drive rod 305 to rotate, and the drive column 306 fixed to the end of the drive rod 305 will revolve around the drive rod 305. When the drive column 306 contacts the inner wall of one side of the receiving groove 304, one end of the movable rod 301 will be driven to swing to one side. Then the drive column 306 contacts the inner wall of the other side of the receiving groove 304, and the movable rod 301 will swing to the other side. The toothed blade 302, which swings left and right rapidly, can cut off the root of the frost. The user only needs to hold the scraper 1 to adjust the direction. The operation process is easy and convenient.

[0029] During the rotation of motor 404, sprocket 405 connected to the output end of motor 404 is driven to rotate. This sprocket 405 drives another sprocket 405 to rotate through the first chain. The other sprocket 405 drives the mounting rod 402 to rotate at the end of the extension sleeve 401. The mounting rod 402 drives the cutter head 403 to make a circular motion. When the cutter head 403 is close to the frosted part, the frost will be lifted up from top to bottom, so that the device can adapt to cleaning thicker frost.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A semi-automatic defrosting device for a single-door refrigerator, comprising a scraper (1), characterized in that: The top of the shovel (1) is provided with a separation component (3), the separation component (3) includes a movable rod (301) rotatably connected to the outer wall of the top of the shovel (1), a toothed blade (302) is fixedly connected to the end of the movable rod (301) away from the shovel (1), a clearance groove (303) is opened at one end of the shovel (1), the toothed blade (302) is located inside the clearance groove (303), and the bottom wall of the toothed blade (302) is on the same horizontal plane as the bottom wall of the shovel (1), and a mounting cover is fixedly connected to the outer wall of the top of the shovel (1). 2) A crushing component (4) is fixedly connected to the outside of the mounting cover (2). The crushing component (4) includes an extension sleeve (401) fixedly connected to the outer wall of one side of the mounting cover (2). An installation rod (402) is rotatably connected to one end of the extension sleeve (401) near the toothed cutter (302). Several equally spaced cutter heads (403) are fixedly connected to the outer circumference of the installation rod (402). A transmission structure is provided inside the mounting cover (2) to drive the movable rod (301) to swing and the installation rod (402) to rotate.

2. The semi-automatic defrosting device for a single-door refrigerator according to claim 1, characterized in that: The transmission structure includes a motor (404) fixedly connected to the inner wall of one end of the mounting cover (2). The output end of the motor (404) and the outside of the mounting rod (402) are both coaxially fixed with a sprocket (405). The two sprockets (405) are fitted with the same first chain. The output end of the motor (404) is provided with a linkage structure.

3. A semi-automatic defrosting device for a single-door refrigerator according to claim 2, characterized in that: The linkage structure includes a sprocket two (407) coaxially fixed to the output end of the motor (404), a gear rod (406) rotatably connected to the inner wall of the other end of the mounting cover (2), a sprocket two (407) coaxially fixed to the outside of the gear rod (406), the two sprocket two (407) are fitted with the same second chain, a drive rod (305) rotatably connected to the inner wall of one side of the mounting cover (2), a bevel gear (408) coaxially fixed to the outside of the drive rod (305) and meshing with the gear rod (406), a drive column (306) eccentrically fixed to one end of the drive rod (305) near the movable rod (301), a vertically arranged receiving groove (304) is opened inside the movable rod (301), and the drive column (306) is located inside the receiving groove (304).

4. A semi-automatic defrosting device for a single-door refrigerator according to claim 1, characterized in that: The outer tooth tips of the tooth cutter (302) are all rounded.

5. A semi-automatic defrosting device for a single-door refrigerator according to claim 1, characterized in that: The mounting cover (2) has a storage slot inside, and a storage battery is fixedly connected inside the storage slot. A switch is fixedly connected to the top outer wall of the mounting cover (2). The switch is electrically connected to the motor (404) and the storage battery through a wire and is used to control the rotation of the motor (404).

6. A semi-automatic defrosting device for a single-door refrigerator according to claim 1, characterized in that: The shovel (1), toothed blade (302), and blade head (403) are all made of hard plastic.

7. A semi-automatic defrosting device for a single-door refrigerator according to claim 1, characterized in that: The mounting cover (2) is fixedly connected to a protective cover (5), which surrounds the mounting rod (402).

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