Safety protection device of roller washing machine

Abstract

The utility model relates to a safety protection device of a roller washing machine, which comprises a washing machine shell internally provided with a roller, one end of the washing machine shell is provided with a material port, and the washing machine shell on one side of the material port is rotatably connected with a sealing door through a connecting structure. A locking hole is formed in the center of the top wall of the sealing door, a sliding sleeve is fixedly installed on the portion, above the locking hole, of the outer wall of the washing machine shell, when the sealing door is in an open state, the torsional spring can push the sealing door to be closed tightly through the elastic force of the torsional spring, and after the sealing door is closed tightly, the locking hole formed in the top end of the sealing door is right aligned with the locking pin. At the moment, the iron core can push the bottom end of the locking pin to slide downwards to be inserted into the locking hole under the action of gravity, automatic locking of the sealing door is achieved, children cannot open the sealing door easily, the safety of the drum washing machine is greatly improved, and the situation that children open the sealing door and enter the drum of the washing machine during playing is avoided as much as possible. Certain potential safety hazards exist.

Description

Technical Field

[0001] This utility model belongs to the field of washing machine technology, specifically relating to a safety protection device for a drum washing machine. Background Technology

[0002] Drum washing machines are designed to mimic the principle of beating clothes with a stick. They consist of a stainless steel inner drum, a mechanical program controller, an outer shell protected by phosphating, electrophoresis, and spraying, and several heavy cement blocks to balance the huge centrifugal force generated when the drum rotates. The combined action of detergent and water cleans the clothes.

[0003] The sealed door of existing drum washing machines is generally closed by a latch and a buckle. When the lever is pulled, the latch disengages from the buckle and the sealed door is opened. Although convenient to use, children can easily open the sealed door and crawl into the washing machine drum while playing, which poses a certain safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed safety protection device for drum washing machines in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A safety protection device for a drum washing machine includes a washing machine housing with a drum installed inside. One end of the washing machine housing has a feed inlet. A sealing door is rotatably connected to the washing machine housing on one side of the feed inlet via a connecting structure. A locking hole is formed in the center of the top wall of the sealing door. A sliding sleeve is fixedly installed on the outer wall of the washing machine housing above the locking hole. An electromagnet is fixedly connected inside the sliding sleeve. A control button electrically connected to the electromagnet is installed on the top of the sliding sleeve. An iron core is slidably connected inside the sliding sleeve below the electromagnet. A gap is left between the upper surface of the iron core and the bottom end of the electromagnet for the iron core to slide. A guide rod is fixedly connected to the bottom end of the iron core. The guide rod passes through the bottom wall of the sliding sleeve and is slidably connected to the bottom wall of the sliding sleeve. A locking pin is fixedly connected to the end of the guide rod located outside the sliding sleeve. When the sealing door is closed, the locking pin is aligned with the locking hole.

[0007] As a further optimization of this utility model, the connection structure includes two ear plates fixedly connected to the outer wall of the washing machine shell, a connecting shaft rotatably connected between the two ear plates, a rotating plate extending outward from the side of the sealing door near the connecting shaft, and the end of the rotating plate away from the sealing door being sleeved on the middle section of the connecting shaft and fixed to the connecting shaft.

[0008] As a further optimization of this utility model, a torsion spring is sleeved on the connecting shaft between the two sides of the rotating plate and the ear plate, one end of the torsion spring is fixedly connected to the ear plate, and the other end of the torsion spring is fixedly connected to the rotating plate.

[0009] As a further optimization of this utility model, a first sealing ring is fixedly connected to the inner wall of the feed inlet, and a second sealing ring is installed on the side of the sealing door near the feed inlet. When the sealing door is in the closed state, the first sealing ring and the second sealing ring are tightly fitted together, and a handle is also installed on the side of the sealing door away from the rotating plate.

[0010] As a further optimization of this utility model, a first inclined surface is provided on the side of the locking hole near the locking pin, and a second inclined surface is provided at the bottom end of the locking pin.

[0011] As a further optimization of this utility model, the guide rod has a polygonal prism structure, and a sliding hole adapted to the cross-sectional size of the guide rod is provided on the bottom wall of the sliding sleeve. The bottom end of the guide rod passes through the sliding hole and penetrates the bottom wall of the sliding sleeve.

[0012] The beneficial effects of this utility model are as follows: When the sealed door is in the open state, the torsion spring can push the sealed door to close tightly through its own elastic force. After the sealed door is closed, the locking hole at the top of the sealed door is exactly aligned with the locking pin. At this time, the iron core can push the bottom end of the locking pin to slide down and insert into the locking hole under the action of gravity, thereby realizing the automatic locking of the sealed door. This makes it impossible for children to easily open the sealed door, greatly improving the safety of the drum washing machine and minimizing the safety hazards that children may open the sealed door and crawl into the drum of the washing machine while playing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure between the sealing door and the washing machine casing of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0016] Figure 4 This is a utility model Figure 3 A magnified view of a local detail at point A in the middle.

[0017] In the diagram: 1. Washing machine casing; 2. Drum; 3. Feed inlet; 4. First sealing ring; 5. Sealing door; 6. Ear plate; 7. Connecting shaft; 8. Torsion spring; 9. Handle; 10. Second sealing ring; 11. Locking hole; 12. First inclined surface; 13. Sliding sleeve; 14. Electromagnet; 15. Control button; 16. Iron core; 17. Guide rod; 18. Locking pin; 19. Second inclined surface. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example

[0020] like Figure 1 - Figure 4 As shown, a safety protection device for a drum washing machine includes a washing machine shell 1 with a drum 2 installed inside. One end of the washing machine shell 1 has a feed inlet 3. A sealing door 5 is rotatably connected to the washing machine shell 1 on one side of the feed inlet 3 via a connecting structure. The connecting structure includes two ear plates 6 fixedly connected to the outer wall of the washing machine shell 1. A connecting shaft 7 is rotatably connected between the two ear plates 6. The side of the sealing door 5 closest to the connecting shaft 7 extends outward to form a rotating plate. The end of the rotating plate away from the sealing door 5 is sleeved on the middle section of the connecting shaft 7 and fixed to the connecting shaft 7, so that the sealing door 5 is rotatably connected to the washing machine shell 1 via the ear plates 6 and the connecting shaft 7, making it convenient for the user to rotate the sealing door 5 to seal and open the feed inlet 3.

[0021] A torsion spring 8 is fitted on the connecting shaft 7 between the two sides of the rotating plate and the ear plate 6. One end of the torsion spring 8 is fixedly connected to the ear plate 6, and the other end of the torsion spring 8 is fixedly connected to the rotating plate. When the sealing door 5 is opened, the torsion spring 8 is in a torsion state. If it is not subjected to external force, the torsion spring 8 can push the connecting shaft 7 to rotate under its own restoring force, and automatically close the sealing door 5, so as to prevent the sealing door 5 from being in an open state. When children play, they may crawl into the inside of the roller 2 through the feed port 3.

[0022] A first sealing ring 4 is fixedly connected to the inner wall of the feed inlet 3. A second sealing ring 10 is installed on the side of the sealing door 5 near the feed inlet 3. When the sealing door 5 is closed, the first sealing ring 4 and the second sealing ring 10 fit tightly together. A handle 9 is also installed on the side of the sealing door 5 away from the rotating plate. The first sealing ring 4 and the second sealing ring 10 are set to increase the sealing performance of the sealing door 5 when it is closed, so as to avoid water leakage when washing clothes. At the same time, they can also buffer and dampen the noise when closing the sealing door 5. The handle 9 is set to make it convenient for users to open the sealing door 5 by moving the handle 9.

[0023] A locking hole 11 is provided in the center of the top wall of the sealed door 5. A sliding sleeve 13 is fixedly installed on the outer wall of the washing machine casing 1 above the locking hole 11. An electromagnet 14 is fixedly connected inside the sliding sleeve 13. A control button 15 electrically connected to the electromagnet 14 is installed on the top of the sliding sleeve 13. An iron core 16 is slidably connected inside the sliding sleeve 13 below the electromagnet 14. A gap is left between the upper surface of the iron core 16 and the bottom end of the electromagnet 14 for the iron core 16 to slide. A guide rod 17 is fixedly connected to the bottom end of the iron core 16. The guide rod 17 passes through the bottom wall of the sliding sleeve 13 and is slidably connected to the bottom wall of the sliding sleeve 13. A lock is fixedly connected to the end of the guide rod 17 located outside the sliding sleeve 13. When the locking pin 18 is engaged and the sealing door 5 is closed, the locking pin 18 is aligned with the locking hole 11. When the sealing door 5 is closed, the bottom end of the locking pin 18 slides down into the locking hole 11 on the top wall of the sealing door 5 under the action of gravity, thereby locking the sealing door 5 and preventing children from opening the sealing door 5 while playing. When the washing machine needs to be used, the control button 15 can be pressed to energize the electromagnet 14. At this time, the iron core 16 slides up along the inner cavity of the sliding sleeve 13 under the action of the magnetic force of the electromagnet 14, and pulls the locking pin 18 up through the guide rod 17, so that the bottom end of the locking pin 18 slides out from the locking hole 11. At this time, the sealing door 5 can be opened to wash clothes.

[0024] The locking hole 11 has a first inclined surface 12 on the side near the locking pin 18, and the bottom end of the locking pin 18 has a second inclined surface 19. When the sealing door 5 is closed, the bottom end of the locking pin 18 can be pushed up by the first inclined surface 12 and the second inclined surface 19, so that the sealing door 5 can be closed without energizing the electromagnet 14, which is convenient for users.

[0025] The guide rod 17 has a polygonal prism structure. The bottom wall of the sliding sleeve 13 has a sliding hole that matches the cross-sectional size of the guide rod 17. The bottom end of the guide rod 17 passes through the sliding hole and penetrates the bottom wall of the sliding sleeve 13. The guide rod 17 is set to a polygonal prism structure to guide the locking pin 18 in conjunction with the sliding hole, so as to avoid the locking pin 18 from rotating during the sliding process, which would cause the second inclined surface 19 to fail to align with the first inclined surface 12 and affect the automatic closing of the sealing door 5.

[0026] It should be noted that when using this kind of drum washing machine safety protection device, the user presses the control button 15 to energize the electromagnet 14. At this time, the iron core 16 slides up along the inner cavity of the sliding sleeve 13 under the action of the magnetic force of the electromagnet 14, and pulls the locking pin 18 up through the guide rod 17, so that the bottom end of the locking pin 18 slides out from the locking hole 11. At this time, the sealed door 5 can be opened to wash clothes.

[0027] When the clothes are washed and taken out, the sealing door 5 is in the open state, and the torsion spring 8 is in the torsional state. At this time, the torsion spring 8 can push the connecting shaft 7 to rotate under its own restoring force, thereby pushing the sealing door 5 to close automatically. When the first inclined surface 12 on the sealing door 5 rotates to fit with the second inclined surface 19 at the bottom of the locking pin 18, the locking pin 18 can be pushed to slide up through the first inclined surface 12 and the second inclined surface 19, thereby closing the sealing door 5 tightly.

[0028] When the sealing door 5 is closed, the locking hole 11 at the top of the sealing door 5 rotates to align with the bottom end of the locking pin 18. At this time, the iron core 16 pushes the locking pin 18 down under the action of gravity, so that the bottom end of the locking pin 18 is inserted into the locking hole 11, thereby automatically locking the sealing door 5 and making it difficult for children to open, which greatly improves the safety of the drum washing machine.

[0029] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A safety protection device for a drum washing machine, comprising a washing machine housing (1) with a drum (2) installed inside, wherein a feed inlet (3) is provided at one end of the washing machine housing (1), and a sealing door (5) is rotatably connected to the washing machine housing (1) on one side of the feed inlet (3) via a connecting structure, characterized in that: A locking hole (11) is provided in the center of the top wall of the sealing door (5). A sliding sleeve (13) is fixedly installed on the outer wall of the washing machine housing (1) above the locking hole (11). An electromagnet (14) is fixedly connected inside the sliding sleeve (13). A control button (15) electrically connected to the electromagnet (14) is installed on the top of the sliding sleeve (13). An iron core (16) is slidably connected inside the sliding sleeve (13) below the electromagnet (14). The upper surface of the iron core (16) is connected to the electromagnet. A gap is left between the bottom ends of the magnets (14) for the iron core (16) to slide. A guide rod (17) is fixedly connected to the bottom end of the iron core (16). The guide rod (17) passes through the bottom wall of the sliding sleeve (13) and is slidably connected to the bottom wall of the sliding sleeve (13). A locking pin (18) is fixedly connected to one end of the guide rod (17) located outside the sliding sleeve (13). When the sealing door (5) is in the closed state, the locking pin (18) is aligned with the locking hole (11).

2. The safety protection device for a drum washing machine according to claim 1, characterized in that: The connection structure includes two ear plates (6) fixedly connected to the outer wall of the washing machine housing (1), and a connecting shaft (7) rotatably connected between the two ear plates (6). The sealing door (5) extends outward from the side near the connecting shaft (7) to form a rotating plate. The end of the rotating plate away from the sealing door (5) is sleeved on the middle section of the connecting shaft (7) and fixed to the connecting shaft (7).

3. A safety protection device for a drum washing machine according to claim 2, characterized in that: A torsion spring (8) is sleeved on the connecting shaft (7) between the two sides of the rotating plate and the ear plate (6). One end of the torsion spring (8) is fixedly connected to the ear plate (6), and the other end of the torsion spring (8) is fixedly connected to the rotating plate.

4. A safety protection device for a drum washing machine according to claim 3, characterized in that: A first sealing ring (4) is fixedly connected to the inner wall of the feed inlet (3). A second sealing ring (10) is installed on the side of the sealing door (5) near the feed inlet (3). When the sealing door (5) is closed, the first sealing ring (4) and the second sealing ring (10) are tightly fitted together. A handle (9) is also installed on the side of the sealing door (5) away from the rotating plate.

5. A safety protection device for a drum washing machine according to claim 4, characterized in that: The locking hole (11) has a first inclined surface (12) on the side near the locking pin (18), and the bottom end of the locking pin (18) has a second inclined surface (19).

6. A safety protection device for a drum washing machine according to claim 1, characterized in that: The guide rod (17) has a polygonal prism structure. The bottom wall of the sliding sleeve (13) has a sliding hole that matches the cross-sectional size of the guide rod (17). The bottom end of the guide rod (17) passes through the sliding hole and penetrates the bottom wall of the sliding sleeve (13).

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