Front housing of roller washing machine

Abstract

The utility model discloses a front cover shell of a roller washing machine, which belongs to the technical field of washing machines, solves the problem that the washing noise of the existing roller washing machine is large, and adopts the technical scheme that the front cover shell mainly comprises a shell which is provided with a first plate surface and a second plate surface which are opposite to each other, an internal space is formed in the shell, and the internal space communicates with the first through hole; the ring cover is rotationally installed on the first plate face, an elastic sealing ring is fixedly connected to the ring cover, and when the ring cover is in a closed state, the elastic sealing ring blocks the communicating position of the inner space and the first through hole; the air extracting pump is fixedly installed on the shell, and when the air extracting pump is in a closed state, the air extracting pump is used for extracting air from the internal space; in the opening state, openings in the two sides of the first through hole are opened; when the ring cover is in the closed state, the ring cover closes the opening, facing the first plate face side, of the first through hole, and the noise reduction device has the advantages that the effect that sound in the washing machine is transmitted to the outside in the washing process is reduced, and the noise reduction effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of washing machines, in particular to a front cover of a drum washing machine. BACKGROUND

[0002] The drum washing machine is designed by imitating the principle of a stick hammer hitting clothes, with a stainless steel inner barrel, a mechanical program controller, a shell protected by phosphating, electrophoresis and spraying, and a number of heavy cement blocks for repeated movement to balance the huge centrifugal force generated when the drum rotates, plus the combined action of washing powder and water to make the clothes clean. However, due to the existing washing principle of the drum washing machine, a large noise is caused during the washing process. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above problems, the present application provides a front cover of a drum washing machine, which solves the problem of excessive noise during washing of the existing drum washing machine.

[0004] The front cover of the drum washing machine provided by the present application adopts the following technical scheme:

[0005] A front cover of a drum washing machine, comprising:

[0006] A shell, the shell is plate-shaped, the shell has opposite first and second plate surfaces, a first through hole is provided through the shell in a vertical plate surface direction, an internal space is provided in the shell, and the internal space is in communication with the first through hole;

[0007] A cover, the cover is rotatably installed on the first plate surface, an elastic sealing ring is fixedly connected to the cover, the cover has an open state and a closed state, and when the cover is in the closed state, the elastic sealing ring blocks the communication between the internal space and the first through hole; and

[0008] A gas suction pump, the gas suction pump is fixedly installed on the shell, and when the cover is in the closed state, the gas suction pump is used to suck gas from the internal space;

[0009] When the cover is in the open state, the openings on both sides of the first through hole are open; when the cover is in the closed state, the cover closes the opening of the first through hole towards the first plate surface.

[0010] Further preferably, the front cover further comprises a transmission mechanism, the transmission mechanism comprising:

[0011] A driving shaft, the driving shaft is rotatably installed on the shell, a rotating member is fixedly connected to the driving shaft, and one end of the rotating member away from the driving shaft is fixedly connected to the cover;

[0012] a driven shaft, which is rotatably installed on the shell;

[0013] a transmission assembly, which is connected between the driving shaft and the driven shaft, and is used for transmitting power of the driving shaft to the driven shaft;

[0014] a pull rope, one end of which is fixedly connected to the driven shaft;

[0015] a sliding piece, which is slidably installed on the shell, and the pull rope is fixedly connected to the sliding piece at an end away from the driven shaft; and

[0016] a resilient reset piece, one end of which is fixedly connected to the sliding piece, and the other end is fixedly connected to the shell;

[0017] when the cover is in the closed state, the sliding piece touches the air pump, and at this time, the air pump can start to pump air; when the cover is in the open state, the sliding piece does not touch the air pump;

[0018] when the cover is in the closed state, the elastic potential energy of the resilient reset piece is F1; when the cover is in the open state, the elastic potential energy of the resilient reset piece is F2; wherein: F1≤F2.

[0019] Further preferably, the transmission mechanism further comprises a protective shell, which is fixedly connected to the shell, and the protective shell is provided with an accommodating space and a guide groove, the accommodating space is used for accommodating the transmission assembly, and the guide groove is used for accommodating the sliding piece, one end of the resilient reset piece is fixedly connected to the sliding piece, and the other end is fixedly connected to the side wall of the guide groove.

[0020] Further preferably, the transmission assembly comprises:

[0021] a driving gear, which is fixedly connected to the driving shaft; and

[0022] a driven gear, which is fixedly connected to the driven shaft, and the driven gear is engaged with the driving gear.

[0023] Further preferably, the air pump is provided with a control knob, which is used for controlling the air pumping strength of the air pump, so as to adjust the air pressure in the internal space.

[0024] Further preferably, the cover is fixedly connected with a transparent cover, and the cover is provided with a second through hole, when the cover is in the closed state, the axis of the second through hole is parallel to the axis of the first through hole, and the transparent cover closes the openings of the first through hole and the second through hole towards the first plate surface side.

[0025] Further preferably, the ring cover comprises:

[0026] a cap, the diameter of the cap being greater than the diameter of the first through hole; and

[0027] a cover body, the cover body being fixedly connected with the cap, the diameter of the cover body being less than the diameter of the first through hole;

[0028] wherein the elastic sealing ring is fixedly connected with the cover body.

[0029] Further preferably, a fixed magnetic sheet is fixedly connected on the first plate surface, and a movable magnetic sheet is fixedly connected on the cap, and when the ring cover is in the closed state, the fixed magnetic sheet and the movable magnetic sheet are magnetically connected.

[0030] Further preferably, a plurality of positioning columns are fixedly connected on the second plate surface.

[0031] Further preferably, a plurality of countersunk holes are provided in the shell, and the countersunk holes are provided along the first plate surface to the second plate surface.

[0032] In summary, the present application has at least the following advantages:

[0033] The internal space is provided in the shell, when the ring cover seals the first through hole on the shell, the elastic sealing ring on the ring cover seals the communication between the internal space and the first through hole, and then the internal space is pumped by the air pump to be in a vacuum or near-vacuum state, so that the noise is reduced from the inside of the washing machine to the outside, thereby achieving the noise reduction effect. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a perspective structural schematic view of a ring cover of a front cover shell of a drum washing machine in a closed state according to an embodiment of the present application;

[0035] Figure 2 is a perspective structural schematic view of a ring cover of a front cover shell of a drum washing machine in an open state according to an embodiment of the present application;

[0036] Figure 3 is a side view schematic view of a front cover shell of a drum washing machine according to an embodiment of the present application;

[0037] Figure 4 is Figure 3 is an enlarged schematic view of A in FIG. 4;

[0038] Figure 5 is a side view schematic view of a shell according to an embodiment of the present application;

[0039] Figure 6is a side view cut schematic view of the air pump and transmission mechanism of an embodiment of the utility model;

[0040] Figure 7 is a three-dimensional connection structure schematic view of the protective shell and driving shaft of an embodiment of the utility model;

[0041] Figure 8 is a three-dimensional structure schematic view of the transmission assembly, driving shaft, driven shaft and pull rope of an embodiment of the utility model;

[0042] Figure 9 is a three-dimensional structure schematic view of the cover of an embodiment of the utility model.

[0043] Mark explanation:

[0044] 1, shell;2, countersunk hole;3, positioning column;4, cover;5, transparent cover;6, rotating part;7, transmission mechanism;8, air pump;9, control knob;10, internal space;11, second through hole;12, movable magnetic sheet;13, fixed magnetic sheet;14, first through hole;15, cap;16, cover body;17, elastic sealing ring;18, sliding part;19, elastic reset part;20, guide groove;21, pull rope;22, driven shaft;23, driven gear;24, containing space;25, driving gear;26, driving shaft;27, protective shell;28, transmission assembly;29, first board surface;30, second board surface. Specific implementation

[0045] The specific implementation of the utility model is described in detail below. It should be understood that the specific implementation described herein is only used to illustrate and explain the utility model, and is not used to limit the utility model.

[0046] In the utility model, the orientation words such as 'up, down' used without contrary description usually refer to the orientation in the assembling and using state. 'In, out' refers to the in, out relative to the outline of each component.

[0047] The utility model discloses a drum washing machine front cover, the front cover of drum washing machine is the external protective cover of washing machine, usually is made of plastic or metal, mainly plays the role of protecting internal parts, providing stable support and beautiful appearance. In the drum washing machine front cover in the utility model, the internal space 10 that can produce vacuum effect or near vacuum effect is arranged, to reduce the sound transmission effect of washing machine inside during the washing process to outside, thereby achieving the effect of reducing noise.

[0048] Combine the drawings Figure 1 to the drawings Figure 4The utility model discloses a front cover of drum washing machine, including casing 1, ring cover 4 and air pump 8. Casing 1 is board -like, and casing 1 has opposite first board surface 29 and second board surface 30, and the first through -hole 14 of casing 1 is opened along the vertical board surface direction through. When the front cover is installed to the body of washing machine, the second board surface 30 of casing 1 is attached with the body of washing machine, and the first through -hole 14 is connected with the washing space of washing machine. The clothes to be washed are put into the washing space of washing machine from the first through -hole 14 of one side of first board surface 29, and the clothes after washing can also be taken out from the washing space of washing machine from the first through -hole 14.

[0049] Combining with the drawings Figure 5 The internal space 10 is communicated with the first through -hole 14. The ring cover 4 is rotatably installed on the first board surface 29, and the elastic sealing ring 17 is fixedly connected to the ring cover 4. The ring cover 4 has an open state and a closed state, and when the ring cover 4 is in the closed state, the elastic sealing ring 17 is blocked at the communication position of the internal space 10 and the first through -hole 14. When the ring cover 4 is in the open state, the openings on both sides of the first through -hole 14 are open. When the ring cover 4 is in the closed state, the ring cover 4 closes the opening of the first through -hole 14 towards the first board surface 29.

[0050] In summary, when the ring cover 4 is in the open state, the first through -hole 14 is in the open state, and at this time, the clothes can be taken out or put in. When the ring cover 4 is in the closed state, the ring cover 4 closes the opening of the first through -hole 14 towards the first board surface 29, and at this time, the clothes cannot be taken out or put in. That is, when the ring cover 4 is in the closed state, the washing machine can wash the clothes.

[0051] When the ring cover 4 is in the closed state, the elastic sealing ring 17 is blocked at the communication position of the internal space 10 and the first through -hole 14, and at this time, the internal space 10 is in a sealed state. The internal space 10 is arranged inside the casing 1, so that the casing 1 forms a three-layer structure of solid-air layer-solid from inside to outside, and the propagation effect of noise in the solid during the washing process is greater than that in the air layer. Therefore, the design of the casing 1 can achieve a certain degree of noise reduction effect.

[0052] The air pump 8 is fixedly installed on the casing 1, and when the ring cover 4 is in the closed state, the air pump 8 is used for pumping air from the internal space 10. In the embodiment, the air pump 8 is fixedly installed on the first board surface 29 of the casing 1 for convenient operation. When the ring cover 4 is in the closed state, the air pump 8 is used for pumping air from the internal space 10, that is, the sealed internal space 10 can be pumped to a vacuum or near-vacuum state, further reducing the propagation effect of the air layer on the noise, thereby realizing the noise reduction function of the front cover of the washing machine.

[0053] In addition, the elastic sealing ring 17 is blocked at the communication between the internal space 10 and the first through hole 14, and the resistance effect of the rotation of the cover 4 is increased. On the one hand, the sealing effect of the internal space 10 is ensured, so that the internal space 10 is easily pumped to a vacuum or near-vacuum state by the air pump 8. On the other hand, the elastic sealing ring 17 is deformed to the side of the internal space 10 under the action of negative pressure, so that the stability of the cover 4 in the closed state is improved, and the situation that the cover 4 is suddenly opened during the washing process of the washing machine is avoided.

[0054] In further embodiments of the present application, the foregoing is combined with the accompanying drawings Figure 6 The front cover further comprises a transmission mechanism 7, the transmission mechanism 7 comprising a driving shaft 26, a driven shaft 22, a transmission assembly 28, a pull rope 21, a sliding piece 18 and an elastic reset piece 19. The driving shaft 26 and the driven shaft 22 are both rotatably installed on the shell 1, and the driving shaft 26 is fixedly connected with the rotating piece 6, and the rotating piece 6 is fixedly connected with the cover 4 away from the driving shaft 26. The transmission assembly 28 is connected between the driving shaft 26 and the driven shaft 22, and is used for transmitting power of the driving shaft 26 to the driven shaft 22. One end of the pull rope 21 is fixedly connected with the driven shaft 22, and the other end away from the driven shaft 22 is fixedly connected with the sliding piece 18. The sliding piece 18 is slidably installed on the shell 1. One end of the elastic reset piece 19 is fixedly connected with the sliding piece 18, and the other end is fixedly connected with the shell 1. When the cover 4 is in the closed state, the sliding piece 18 touches the air pump 8, at this time the air pump 8 can start to pump, and at this time the elastic potential energy of the elastic reset piece 19 is F1. When the cover 4 is in the open state, the sliding piece 18 does not touch the air pump 8, at this time the air pump 8 cannot start to pump, and at this time the elastic potential energy of the elastic reset piece 19 is F2. Wherein, F1≤F2. It should be noted that the elastic reset piece 19 always has a tendency to drive the sliding piece 18 to slide to the side of the air pump 8, and the force of the elastic reset piece 19 on the sliding piece 18 is only used to push the sliding piece 18 to slide, and is not enough to overcome and drive the cover 4 to rotate.

[0055] Specifically, in use, the cover 4 is manually rotated by artificial manual rotation, and the sliding of the sliding piece 18 is realized through the driving shaft 26, the transmission assembly 28, the driven shaft 22, the pull rope 21 and the elastic reset piece 19. When the cover 4 has not closed the first through hole 14, that is, the elastic sealing ring 17 has not closed the communication between the internal space 10 and the first through hole 14, the internal space 10 is in an open state. At this time, if the air pump 8 starts to pump, the internal space 10 cannot be pumped to a vacuum or near-vacuum state, resulting in energy waste. The design of the transmission mechanism 7 in the present application can avoid the above energy waste, and when the cover 4 has not closed the first through hole 14, even if the air pump 8 is mistakenly touched, it will not start.

[0056] In some embodiments of the present application, the foregoing is combined with the accompanying drawings Figure 7The transmission mechanism 7 further comprises a protective shell 27 fixedly connected to the shell 1, and the protective shell 27 is provided with the accommodating space 24 and the guide groove 20. The accommodating space 24 is used for accommodating a transmission assembly 28, and the guide groove 20 is used for accommodating the sliding piece 18. One end of the elastic reset piece 19 is fixedly connected to the sliding piece 18, and the other end is fixedly connected to the sidewall of the guide groove 20. The protective shell 27 is mainly used for protecting the transmission assembly 28 and the sliding piece 18 in the transmission mechanism 7. In addition, the protective shell 27 is in a concave shape as a whole in the embodiment, and the driving shaft 26 is partially exposed from the protective shell 27 so as to be connected to the rotating piece 6.

[0057] In some embodiments of the utility model, the transmission assembly 28 comprises a driving gear 25 and a driven gear 23. The driving gear 25 is fixedly connected to the driving shaft 26, and the driven gear 23 is fixedly connected to the driven shaft 22. The driven gear 23 and the driving gear 25 are engaged. In combination with the accompanying drawings, Figure 8 In the embodiment, the engaged driving gear 25 and driven gear 23 are provided in two groups, and the two driving gears 25 are fixedly arranged at the axial two ends of the driving shaft 26, and the two driven gears 23 are fixedly arranged at the axial two ends of the driven shaft 22, so as to improve the symmetry and structural stability.

[0058] In some embodiments of the utility model, the air suction pump 8 is provided with a control knob 9, and the control rotation is used for controlling the air suction intensity of the air suction pump 8, so as to adjust the air pressure in the internal space 10. Specifically, the lower the air pressure in the internal space 10, the closer the internal space 10 to the vacuum, and the stronger the noise reduction effect, but the energy consumption of the air suction pump 8 is also higher, and the loss of the elastic sealing ring 17 is also higher. Generally, the noise of the washing machine in the dehydration link process is high, and at this time, the air suction intensity of the air suction pump 8 can be adjusted by rotating the control knob 9 to further enhance the vacuum property in the internal space 10, so as to meet the noise reduction effect.

[0059] In some embodiments of the utility model, in combination with the accompanying drawings, Figure 9 The ring cover 4 is fixedly connected with a breathable cover, and the second through hole 11 is provided through the ring cover 4. When the ring cover 4 is in the closed state, the axis of the second through hole 11 is parallel to the axis of the first through hole 14, and the transparent cover 5 closes the opening of the first through hole 14 and the second through hole 11 towards the first plate surface 29 side. The setting of the transparent cover 5 facilitates the user to observe the washing condition in the washing machine through the transparent cover 5 and the second through hole 11.

[0060] In some embodiments of the utility model, the ring cover 4 includes the cap 15 and the cover body 16. The diameter of the cap 15 is greater than the diameter of the first through hole 14, and the diameter of the cover body 16 is less than the diameter of the first through hole 14. The elastic sealing ring 17 is fixedly connected to the cover body 16. In this way, the rotation of the ring cover 4 can be positioned, and the cover body 16 can be rotated into the first through hole 14, so that the elastic sealing ring 17 can block the communication between the internal space 10 and the first through hole 14. In addition, the cover body 16 is fixedly connected to the cap 15. In this embodiment, the cover body 16 and the cap 15 are integrally formed.

[0061] In some embodiments of the utility model, the first plate surface 29 is fixedly connected with the fixed magnetic sheet 13, and the cap 15 is fixedly connected with the movable magnetic sheet 12. When the ring cover 4 is in the closed state, the fixed magnetic sheet 13 and the movable magnetic sheet 12 are magnetically connected. The arrangement of the fixed magnetic sheet 13 and the movable magnetic sheet 12 further improves the stability of the ring cover 4.

[0062] In some embodiments of the utility model, the second plate surface 30 is fixedly connected with a plurality of positioning columns 3. The positioning columns 3 are arranged to distinguish the first plate surface 29 and the second plate surface 30, and to positionally connect the shell 1 and the body of the washing machine. In this embodiment, the positioning columns 3 are integrally formed with the shell 1.

[0063] In some embodiments of the utility model, a plurality of countersunk holes 2 are formed through the shell 1, and the countersunk holes 2 are formed along the first plate surface 29 to the second plate surface 30. In this way, the shell 1 and the body of the washing machine can be fixed by countersunk bolts, improving stability.

[0064] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the specific details in the above embodiments. Within the technical concept of the utility model, various simple modifications of the technical solutions of the utility model can be made, and these simple modifications all belong to the protection scope of the utility model.

[0065] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the utility model does not further describe various possible combinations.

[0066] In addition, various different embodiments of the utility model can also be combined in any manner, as long as they do not deviate from the idea of the utility model, and they should also be considered as disclosed by the utility model.

Claims

1. A front cover of a drum washing machine, characterized in that, The front cover shell further comprises a transmission mechanism (7), and the transmission mechanism (7) comprises: a driving shaft (26) rotatably installed on the shell (1), a rotating piece (6) fixedly connected to the driving shaft (26), the rotating piece (6) being fixedly connected to the ring cover (4) at an end away from the driving shaft (26); a driven shaft (22) rotatably installed on the shell (1); a transmission assembly (28) connected between the driving shaft (26) and the driven shaft (22) and used for transmitting power of the driving shaft (26) to the driven shaft (22); a pull rope (21) fixedly connected to the driven shaft (22) at one end; 2. The front cover of a drum-type washing machine according to claim 1, wherein a sliding piece (18) slidably installed on the shell (1), the pull rope (21) being fixedly connected to the sliding piece (18) at an end away from the driven shaft (22); and an elastic reset piece (19) fixedly connected to the sliding piece (18) at one end and to the shell (1) at the other end. When the ring cover (4) is in the closed state, the sliding piece (18) touches the air pump (8), and at this time, the air pump (8) can start to pump air; when the ring cover (4) is in the open state, the sliding piece (18) does not touch the air pump (8). When the ring cover (4) is in the closed state, the elastic potential energy of the elastic reset piece (19) is F1; when the ring cover (4) is in the open state, the elastic potential energy of the elastic reset piece (19) is F2; and F1≤F2. ​ ​ ​ ​ ​ 3. The front cover of a drum-type washing machine according to claim 2, wherein The transmission mechanism (7) further comprises a protective shell (27) fixedly connected to the shell (1), the protective shell (27) is provided with an accommodating space (24) and a guide groove (20), the accommodating space (24) is used for accommodating the transmission assembly (28), and the guide groove (20) is used for accommodating the sliding piece (18), one end of the elastic reset piece (19) is fixedly connected to the sliding piece (18), and the other end is fixedly connected to the side wall of the guide groove (20).

4. A front cover for a drum washing machine according to claim 2 or 3, characterized in that, The transmission assembly (28) comprises: A driving gear (25) fixedly connected to the driving shaft (26); and A driven gear (23) fixedly connected to the driven shaft (22), and the driven gear (23) is engaged with the driving gear (25).

5. The front cover of a drum-type washing machine according to claim 1, wherein The air suction pump (8) is provided with a control knob (9), which is used for controlling the air suction strength of the air suction pump (8) to adjust the air pressure in the internal space (10).

6. The front cover of a drum-type washing machine according to claim 1, wherein The ring cover (4) is fixedly connected with a transparent cover (5), the ring cover (4) is provided with a second through hole (11), when the ring cover (4) is in a closed state, the axis of the second through hole (11) is parallel to the axis of the first through hole (14), and the transparent cover (5) closes the openings of the first through hole (14) and the second through hole (11) towards the first plate surface (29).

7. The front cover of a drum-type washing machine according to claim 1, wherein The ring cover (4) comprises: A cap (15) with a diameter greater than that of the first through hole (14); and A cover body (16) fixedly connected with the cap (15), and the diameter of the cover body (16) is smaller than that of the first through hole (14); Wherein, the elastic sealing ring (17) is fixedly connected to the cover body (16).

8. A front cover for a drum washing machine according to claim 7, characterized in that, The first plate surface (29) is fixedly connected with a fixed magnetic sheet (13), and the cap (15) is fixedly connected with a movable magnetic sheet (12), when the ring cover (4) is in a closed state, the fixed magnetic sheet (13) is magnetically connected with the movable magnetic sheet (12).

9. The front cover of a drum-type washing machine according to claim 1, wherein The second plate surface (30) is fixedly connected with a plurality of positioning columns (3).

10. The front cabinet of the drum-type washing machine according to claim 1, wherein The shell (1) is provided with a plurality of countersunk holes (2) penetrating therethrough, and the countersunk holes (2) are arranged from the first plate surface (29) to the second plate surface (30).

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