Sealing structure for automatic lifting door of cleaning machine

Abstract

The utility model relates to a sealing structure for an automatic overhead door of a cleaning machine, which comprises a cleaning cabin port of the cleaning machine and an overhead door positioned on the front side of the cleaning cabin port, guide rails extending vertically are fixedly arranged on the left side and the right side of the cleaning cabin port, and guide wheels matched with the guide rails are rotatably mounted on the left side and the right side of the overhead door. The lifting door moves up and down along the guide rail through the guide wheel, the inner wall, close to the front end of the guide wheel, of the guide rail is provided with a guide slope protruding outwards, the guide slope is located on the movement path of the guide wheel, and when the guide wheel moves to the slope top of the guide slope, the lifting door is arranged on a port of the cleaning bin in a pressed mode. In the moving process of the guide wheel, the moving direction of the guide wheel is changed through the protruding guide slope, due to the fact that the guide slope is arranged on the front side of the guide wheel, vertical movement of the guide wheel is changed into oblique backward movement through extrusion of the guide slope, and then the lifting door is driven to move backwards to press the port of the cleaning bin. And the sealing effect on the cleaning cabin is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the lifting door of the cleaning machine, especially to the sealing technical field of the cleaning machine, and specifically relates to a sealing structure for the automatic lifting door of the cleaning machine. BACKGROUND

[0002] In the cleaning and disinfecting products, almost most machines need a sealed cavity to carry out the operation process of cleaning and disinfecting, and in the process, the cavity is generally filled with a large amount of water flow in all directions, and most of the water flow has a certain initial momentum, so once a systemic loophole appears in the cavity, the position will have a great possibility of seeping water to the outside. However, for general machines, the waterproof performance of the internal electronic devices and circuits of the machine is weak, and it needs a great cost to improve the waterproof performance of the machine, so it is necessary to work hard on the cavity to achieve the purpose of sealing the machine cavity at low cost. However, the machine with the lifting door structure mostly faces the problem of being difficult to seal, and the lifting door structure has many advantages such as small space occupation, full-automatic process, convenience and simple operation, but one of the shortcomings is poor sealing effect, which is easy to cause water leakage, thereby resulting in low qualified rate of finished products. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a sealing structure for the automatic lifting door of the cleaning machine in view of the shortage of prior art, improves the sealing effect of the lifting door.

[0004] The utility model discloses a sealing structure for the automatic lifting door of the cleaning machine, which improves the sealing effect of the lifting door.

[0005] The lifting door moves up and down along the guide rail through the guide wheel to open and close the cleaning cabin port. The guide wheel changes the movement direction through the protruding guide slope during the movement process. Since the guide slope is arranged on the front side of the guide wheel, the movement direction of the guide wheel is changed to the oblique rear movement through the extrusion of the guide slope, thereby driving the lifting door to move backward to press the cleaning cabin port, and the sealing effect of the cleaning cabin is improved.

[0006] As optimization, the left and right sides of the lifting door are respectively provided with two guide wheels, the two guide wheels on the same side are distributed upwards and downwards, and the inner wall of the guide rail is provided with guide slopes matched with the two guide wheels.

[0007] As optimization, the inner wall of the guide rail near the rear end of the guide wheel is provided with an inwardly recessed containing groove, the containing groove is located on the movement path of the guide wheel and is arranged opposite to the guide slope, and the rear end of the guide wheel is accommodated in the containing groove when the guide wheel moves to the top of the guide slope.

[0008] As optimization, a plurality of sealing rubber strips are arranged between the cleaning cabin port and the lifting door, the plurality of sealing rubber strips are distributed circumferentially and closed to the cleaning cabin port and are fixedly connected to the cleaning cabin port.

[0009] As optimization, the cross section of the sealing rubber strip comprises a right-angled trapezoidal part and a rectangular part fixedly connected to the lower base of the right-angled trapezoidal part, and the length of the rectangular part is the same as the length of the lower base of the right-angled trapezoidal part.

[0010] As optimization, the sealing rubber strip is an integral molding structure.

[0011] As optimization, a travel switch is fixedly arranged on the guide rail, and the lifting door contacts the travel switch when the guide wheel moves to the top of the guide slope.

[0012] The lifting door moves upwards and downwards along the guide rail to open and close the cleaning cabin port, the rolling of the guide wheel can reduce the friction between the lifting door and the guide rail, effectively reduce the resistance of movement, and prolong the service life of the equipment.

[0013] During the movement of the guide wheel, the guide wheel is pressed backward by the convex guide slope, so that the movement direction of the guide wheel changes from vertical to oblique backward, and the lifting door is further moved backward to press the cleaning cabin port, thereby improving the sealing effect on the cleaning cabin.

[0014] The sealing strip further improves the sealing between the cleaning cabin port and the lifting door. When the lifting door moves backward to press the sealing strip, the inclined surface of the right-angled trapezoidal part of the sealing strip is bent inward under stress, so that the inclined surface is attached to the end surface of the lifting door, thereby improving the sealing effect between the sealing strip and the lifting door, and further enhancing the sealing effect of the lifting door. The sealing strip enhances the strength of the right-angled trapezoidal part through the rectangular part, prevents excessive deformation and damage, and has a longer service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the cleaning cabin and the guide rail structure;

[0016] Figure 2 is a schematic view of the structure of the present application;

[0017] Figure 3 is a schematic view of the structure of the cleaning cabin port and the lifting door;

[0018] Figure 4 is a side view of the guide rail;

[0019] Figure 5 is a side view of the opening and closing state of the cleaning cabin port;

[0020] Figure 6 is a top view of the opening state of the cleaning cabin port;

[0021] Figure 7 is a front view of the cleaning cabin port;

[0022] Figure 8 is a sectional view of the cleaning cabin port;

[0023] Figure 9 is a sectional view of the sealing strip;

[0024] In the drawings:

[0025] 1, cleaning cabin, 2, cleaning cabin port, 3, guide rail, 4, lifting door, 5, telescopic cylinder, 6, guide wheel, 7, guide slope, 8, containing chute, 9, sealing strip, 91, right-angled trapezoidal part, 92, rectangular part, 10, travel switch. DETAILED DESCRIPTION

[0026] To clearly illustrate the technical features of the present application, the present application will be described in detail below through specific embodiments.

[0027] As Figures 1-9As shown in the figure, a sealing structure for the automatic lifting door of a cleaning machine comprises a cleaning cabin port 2 of the cleaning machine, and a lifting door 4 located in front of the cleaning cabin port 2. Figure 1 As shown in the figure, specifically, the cleaning machine comprises a rack (not shown in the figure) and a cleaning cabin 1 fixedly installed on the rack. A rectangular port is formed in the front end face of the cleaning cabin 1, and a rectangular frame is fixedly connected to the rectangular port to form the cleaning cabin port 2. During use, articles are taken out or put in through the cleaning cabin port 2. This is the conventional structure of the existing cleaning machine, and thus will not be described in detail here.

[0028] Specifically, vertical guide rails 3 are fixedly arranged on the left and right sides of the cleaning cabin port 2, and guide wheels 6 cooperating with the guide rails 3 are rotatably installed on the left and right sides of the lifting door 4. The lifting door 4 moves up and down along the guide rails 3 through the guide wheels 6.

[0029] As shown in the figure, Figure 3 , 6 As shown in the figure, the guide rails 3 of the embodiment are U-shaped guide rails, and the two guide rails 3 are fixedly connected to the left and right sides of the cleaning cabin 1, and the openings of the two guide rails 3 are oppositely arranged. The lifting door 4 is located between the two guide rails 3, and the rotating shafts of the guide wheels 6 are arranged in parallel with the lifting door 4. The guide wheels 6 on the left and right sides of the lifting door 4 are respectively inserted into the openings of the two guide rails 3 to realize the rolling cooperation of the guide wheels and the guide rails.

[0030] As shown in the figure, Figure 5 The outer diameter of the guide wheel 6 and the inner diameter of the guide rail 3 are matched, so that the guide wheel 6 rolls stably in the guide rail 3, avoiding shaking.

[0031] Specifically, as shown in the figure, Figure 2 The rack of the cleaning machine is further provided with a telescopic cylinder 5 driving the lifting door 4 to move up and down. The telescopic cylinder 5 is vertically arranged, one end of the telescopic cylinder 5 is hingedly connected to the rack, and the other end is hingedly connected to the lifting door 4. The lifting of the lifting door 4 is driven by the extension and retraction of the telescopic cylinder 5, so as to realize the opening and closing of the cleaning cabin port 2. As shown in the figure, Figure 5 When the cleaning cabin port 2 is in the open state, the lifting door 4 is located below the cleaning cabin port 2. When the lifting door 4 rises, the cleaning cabin port 2 is closed, and when the lifting door 4 descends, the cleaning cabin port 2 is opened.

[0032] Specifically, as shown in the figure, Figure 4 , 5As shown in Figure 6, the inner wall of the guide rail 3 near the front end of the guide wheel 6 has an outwardly protruding guide ramp 7. The guide ramp 7 is located on the movement path of the guide wheel 6. When the guide wheel 6 moves to the top of the guide ramp 7, the lifting door 4 presses against the cleaning chamber port 2. In this embodiment, the guide ramp 7 has a triangular structure, and the outer corner of the triangle is the top of the guide ramp. During the upward movement, the guide wheel 6 rolls to the lower slope of the guide ramp 7. The guide ramp 7 squeezes the guide wheel 6, causing it to move diagonally backward, which in turn drives the lifting door 4 to move backward. When the guide wheel 6 reaches the top of the guide ramp 7, the lifting door 4 also presses backward against the cleaning chamber port 2, improving the sealing effect.

[0033] Since the outer diameter of the guide wheel 6 and the inner diameter of the guide rail 3 are compatible in this embodiment, in order to ensure that the guide wheel 6 has a margin for backward movement, such as Figure 4 , 5 As shown, the inner wall of the guide rail 3 near the rear end of the guide wheel 6 is provided with an inwardly recessed receiving groove 8. The receiving groove 8 is located on the movement path of the guide wheel 6 and is opposite to the guide ramp 7. When the guide wheel 6 moves to the top of the guide ramp 7, the rear end of the guide wheel 6 is accommodated in the receiving groove 8. In this embodiment, the receiving groove 8 is also a triangular structure, and the shape of the receiving groove 8 and the guide ramp 7 are the same. When the guide wheel 6 is squeezed by the guide ramp 7, the guide wheel 6 can roll backward into the receiving groove 8, thereby realizing the rearward movement of the lifting door to press against the cleaning chamber port.

[0034] Preferred, such as Figure 4 , 5 As shown, the lifting door 4 has two guide wheels 6 on both its left and right sides, with the two guide wheels 6 on the same side distributed vertically. The inner wall of the guide rail 3 has two guide ramps 7 that cooperate with the guide wheels 6, and also two receiving grooves 8 that cooperate with the guide wheels 6. The lifting door 4 moves along the guide rail 3 via the two sets of guide wheels 6, improving the stability of the movement. Furthermore, the compression of the two sets of guide ramps 7 against the two sets of guide wheels 6 allows the upper and lower ends of the lifting door 4 to simultaneously press against the cleaning chamber port 2, ensuring a firm seal and further improving the sealing effect.

[0035] Specifically, such as Figure 7 , 8 As shown, several sealing strips 9 are provided between the cleaning chamber port 2 and the lifting door 4. These sealing strips 9 are distributed and closed along the circumference of the cleaning chamber port 2 and are fixedly connected to it. Since the cleaning chamber port 2 is a rectangular port, in this embodiment, four sealing strips 9 are distributed along the circumference of the cleaning chamber port 2. A slot is provided at the end of the cleaning chamber port 2 along the circumference, and the four sealing strips 9 are inserted and fixed into the slot. When the lifting door presses backward against the sealing strips, the sealing performance between the cleaning chamber port and the lifting door is further improved.

[0036] Preferably, as shown in Figure 9 the cross section of the sealing strip 9 comprises a right-angled trapezoidal part 91 and a rectangular part 92 fixed with the lower base of the right-angled trapezoidal part 91, the length of the rectangular part 92 is the same as the length of the lower base of the right-angled trapezoidal part 91, and the sealing strip 9 is integrally formed.

[0037] When installed, as shown in Figure 8 the right-angled end of the right-angled trapezoidal part 91 is inserted into the slot, and the inclined surface of the right-angled trapezoidal part 91 is located outside the slot. Since the outer end of the right-angled trapezoidal part 91 is an inclined surface, when the lifting door 4 is pressed on the sealing strip 9, the force on the inclined surface will cause it to bend and deform inwardly of the cleaning cabin port 2, so that the inclined surface is in contact with the end surface of the lifting door 4, thereby improving the sealing effect between the sealing strip 9 and the lifting door 4. The rectangular part 92 enhances the strength of the right-angled trapezoidal part 91, preventing excessive deformation and damage, and making the sealing strip more durable.

[0038] Preferably, as shown in Figure 5 the travel switch 10 is fixed on the guide rail 3, and when the guide wheel 6 moves to the top of the guide slope 7, the lifting door 4 contacts the travel switch 10, which positions the travel of the lifting door 4 and prevents over-travel. Since the lifting door 4 of the present embodiment closes the cleaning cabin port 2 when it is raised, the travel switch 10 is fixed on the top of the guide rail 3. When the guide wheel 6 moves upward to the top of the guide slope 7, the top of the lifting door 4 contacts the travel switch 10, which controls the telescopic cylinder 5 to stop moving, so that the lifting door 4 stops rising, and at this moment the lifting door 4 is just pressed against the sealing strip 9 of the cleaning cabin port 2, achieving sealing of the cleaning cabin port.

[0039] The working principle is as follows: as shown in Figure 5 when the cleaning cabin port 2 is in an open state, the lifting door 4 is located below the cleaning cabin port 2. When it is necessary to close the cleaning cabin port 2, the telescopic cylinder 5 extends to drive the lifting door 4 to move upward, and the lifting door 4 rises to drive the guide wheel 6 to roll along the guide rail 3. When the guide wheel 6 rolls to the guide slope 7, the guide slope 7 presses the guide wheel 6 to move obliquely to the rear, and in turn causes the lifting door 4 to move to the rear, and when the front end of the guide wheel 6 reaches the top of the guide slope 7, the top of the lifting door 4 contacts the travel switch 10, which causes the telescopic cylinder 5 to stop moving, and at this moment the lifting door 4 is just pressed against the sealing strip 9 of the cleaning cabin port 2, ensuring the sealing between the cleaning cabin port and the lifting door.

[0040] Of course, the above description is also not limited to the above examples, the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not a limitation on the utility model, the utility model has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims

1. A sealing structure for an automatic lifting door of a washing machine, comprising a washing chamber port (2) of the washing machine, and a lifting door (4) located in front of the washing chamber port (2), characterized in that: The left and right sides of the cleaning cabin port (2) are fixed with vertically extending guide rails (3), the left and right sides of the lifting door (4) are rotatably installed with guide wheels (6) matched with the guide rails (3), the inner wall of the guide rail (3) near the front end of the guide wheel (6) is provided with an outwardly protruding guide slope (7), the guide slope (7) is located on the movement path of the guide wheel (6), and when the guide wheel (6) moves to the top of the guide slope (7), the lifting door (4) is pressed on the cleaning cabin port (2).

2. The seal structure for an automatic lifting door of a cleaning machine according to claim 1, characterized in that: The left and right sides of the lifting door (4) are provided with two guide wheels (6), and the two guide wheels (6) on the same side are distributed upward and downward, and the inner wall of the guide rail (3) is provided with two guide slopes (7) matched with the guide wheels.

3. The seal structure for an automatic lift door of a cleaning machine according to claim 1, characterized in that: The inner wall of the guide rail (3) near the rear end of the guide wheel (6) is provided with an inwardly recessed containing chute (8), the containing chute (8) is located on the movement path of the guide wheel (6) and is oppositely arranged with the guide slope (7), and when the guide wheel (6) moves to the top of the guide slope (7), the rear end of the guide wheel (6) is contained in the containing chute (8).

4. The seal arrangement for an automatic lift door of a cleaning machine of claim 1, wherein: A plurality of sealing rubber strips (9) are arranged between the cleaning cabin port (2) and the lifting door (4), and the plurality of sealing rubber strips are circumferentially distributed and closed and fixedly connected with the cleaning cabin port (2).

5. The seal arrangement for an automatic lift door of a cleaning machine according to claim 4, characterized in that: The cross section of the sealing rubber strip (9) comprises a right-angled trapezoidal part (91) and a rectangular part (92) fixedly connected with the lower base of the right-angled trapezoidal part (91), and the length of the rectangular part (92) is the same as the length of the lower base of the right-angled trapezoidal part (91).

6. A seal structure for an automatic lifting door of a washing machine according to claim 4 or 5, characterized in that: The sealing rubber strip (9) is an integral structure.

7. The seal arrangement for an automatic lift door of a cleaning machine of claim 1, wherein: The guide rail (3) is fixedly provided with a travel switch (10), and when the guide wheel (6) moves to the top of the guide slope (7), the lifting door (4) contacts the travel switch (10).

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