A sealing structure of a sewage tank of a scrubber

Abstract

This utility model discloses a sealing structure for a wastewater tank of a floor scrubber, including a tank body and a lid with a closed cover located at the top opening of the tank body. The lid has a sealing part that extends into the top opening and seals against the inner wall of the tank body. A sealing ring is provided around the sealing part, and an elastic lip is provided around the outer ring of the sealing ring. A sealing rib is provided around the outer ring of the elastic lip. The elastic lip can provide sufficient rebound force. On the one hand, the sealing ring can deform fully, and the tightness after installation is moderate, which is conducive to the installation and removal of the lid. On the other hand, after the lid is installed, the rebound force can keep the elastic lip tightly fitted to the inner wall of the tank body, and the sealing rib around the outer ring of the elastic lip can produce an interference fit, generating a sealing pre-pressure with the tank body, making the seal more reliable.

Description

Technical Field

[0001] This utility model belongs to the field of floor scrubbers, specifically a sealing structure for the wastewater tank of a floor scrubber. Background Technology

[0002] Floor scrubbers are now widely used in homes and offices. They consist of a vertical main unit and a floor brush pivotally connected to the bottom of the main unit. The floor brush has a scrubbing roller and a suction port connected to the main unit's suction unit. The suction unit generates suction to remove dust, debris, and wastewater from the floor after the scrubbing roller has cleaned the floor. The suction unit includes a wastewater tank and a suction motor. The suction port is connected to the wastewater tank. The suction motor continuously removes air from the wastewater tank, creating negative pressure. This negative pressure generates suction to draw dust, debris, and wastewater that reaches the suction port of the floor brush into the wastewater tank for temporary storage. After cleaning, the user can then empty the tank. Currently, because the main unit of the floor scrubber shakes during operation, causing the wastewater tank to sway, the sealing performance of the wastewater tank needs continuous improvement to optimize its use. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a sealing structure for the wastewater tank of a floor scrubber.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A sealing structure for a wastewater tank of a floor scrubber includes a tank body and a tank lid that closes the top opening of the tank body. The tank lid has a sealing part that extends into the top opening and seals against the inner wall of the tank body. A sealing ring is provided around the sealing part, and an elastic lip is provided around the outer ring of the sealing ring. A sealing rib is provided around the outer ring of the elastic lip.

[0006] The sealing ribs are arranged in two or more layers along the vertical direction.

[0007] The elastic lip extends downward from the top of the sealing ring and curves outward with an arc.

[0008] The lower outer side of the elastic lip is provided with an inclined guide surface, and the bottom end of the elastic lip is thinned to form an inlet end.

[0009] The sealing part is provided with an annular groove for installing a sealing ring. The inner wall of the annular groove is provided with an installation hole. An installation pin is arranged in the inner ring of the sealing ring and the installation pin passes through the installation hole.

[0010] The mounting nail is provided with a barb, which passes through the mounting hole and abuts against the inner wall behind the mounting hole.

[0011] The end of the barb is also provided with a pull post.

[0012] The bucket lid includes a top cover and a lower support. The lower support is fixed below the top cover, and the sealing part is formed on the upper side wall of the lower support. The top cover and the lower support are detachably assembled. An upwardly open operating cavity is provided at the top between the lower parts. The mounting hole is arranged on the side wall of the operating cavity, and the mounting pin passes through the operating cavity.

[0013] The beneficial effects of this utility model are as follows: This utility model sets a new sealing ring on the bucket lid. The outer ring of the sealing ring is provided with an elastic lip and a sealing rib. The elastic lip can provide sufficient rebound force. On the one hand, the sealing ring can deform fully and the tightness after installation is moderate, which is conducive to the installation and removal of the bucket lid. On the other hand, after the bucket lid is installed, the rebound force can be used to keep the elastic lip tightly attached to the inner wall of the bucket. The sealing ribs on the outer side of the elastic lip can produce an interference fit and generate a sealing pre-pressure with the bucket body, making the seal more reliable. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 is a structural schematic diagram of the sewage tank of this utility model;

[0016] Figure 2 is a schematic diagram of the disassembled bucket lid of this utility model;

[0017] Figure 3 is a schematic diagram of the sealing ring of this utility model;

[0018] Figure 4 is a partial sectional view of this utility model. Detailed Implementation

[0019] Referring to Figures 1 to 4, a wastewater tank for a floor scrubber includes a tank body 1 and a lid 2 that closes the top opening of the tank body 1. The lid 2 has a sealing part 23 that extends into the top opening and seals against the inner wall of the tank body 1. A sealing ring 3 is provided around the sealing part 23, and an elastic lip 31 is provided around the outer ring of the sealing ring 3. A sealing rib 32 is provided around the outer ring of the elastic lip 31. The elastic lip 31 can provide sufficient rebound force. On the one hand, the sealing ring 3 can deform sufficiently, and the tightness after installation is moderate, which is conducive to the installation and removal of the lid 2. On the other hand, after the lid 2 is installed, the rebound force can keep the elastic lip 31 tightly fitted to the inner wall of the tank body, and the sealing rib 32 around the outer ring of the elastic lip 31 can produce an interference fit, generating a sealing pre-pressure with the tank body, making the seal more reliable.

[0020] As a preferred embodiment of this utility model, in order to improve the performance of the sealing ring 3, the sealing ribs 32 on the elastic lip 31 are arranged in two or more layers along the vertical direction, so that the elastic lip 31 and the inner wall of the barrel 1 have two or more interference fits, and the sealing effect is better in the open direction of the barrel 1.

[0021] In this embodiment, the elastic lip 31 extends downward from the top of the sealing ring 3. The elastic lip 31 bends outward with an arc to generate a rebound force, and the cavity inside the elastic lip 31 can provide sufficient deformation, thereby obtaining a sealing ring 3 with optimized performance.

[0022] Furthermore, for ease of installation, the lower outer side of the elastic lip 31 is provided with an inclined guide surface 33, and the bottom end of the elastic lip 31 is thinned to form an inlet end, so that when the lid 2 is placed on the top opening of the barrel body 1, the elastic lip 31 can smoothly enter the opening and begin to fit against the inner wall for sealing.

[0023] As a preferred embodiment, the sealing part 23 is provided with an annular groove 231 for installing the sealing ring 3. The inner wall of the annular groove 231 is provided with an installation hole 232. An installation pin 34 is arranged in the inner ring of the sealing ring 3. The installation pin 34 passes through the installation hole 232 to enhance the installation stability of the sealing ring 3, thereby providing stable sealing performance. Furthermore, the installation pin 34 is provided with a barb 341. After the barb 341 passes through the installation hole 232, it abuts against the inner wall behind the installation hole 232, so that the installation pin 34 is fixed on the installation hole 232. Even further, the bucket lid 2 includes a top cover 21 and a lower support 22. The lower support 22 is fixed below the top cover 21, and the... The sealing part 23 is formed on the upper side wall of the lower bracket 22. The top cover 21 and the lower bracket 22 are detachably assembled. When the sealing ring 3 is installed, the top cover 21 and the lower bracket 22 are separated. The top of the lower part is provided with an upwardly open operating cavity 24. The mounting hole 232 is arranged on the side wall of the operating cavity 24. The end of the barb 341 is also provided with a pull post 342. When the mounting nail 34 is inserted into the mounting hole 232, the pull post 342 first passes through the mounting hole 232 and enters the operating cavity 24. The user's hand can be inserted into the operating cavity 24 to grasp the pull post 342 and then pull the barb 341 into the mounting hole 232 and reach the abutment and fixing position. This operation is more convenient.

Claims

1. A sealing structure for a wastewater tank of a floor scrubber, comprising a tank body (1) and a tank lid (2) that closes the top opening of the tank body (1), the tank lid (2) having a sealing part (23) that extends into the top opening and seals against the inner wall of the tank body (1), the sealing part (23) being provided with a sealing ring (3), characterized in that: The outer ring of the sealing ring (3) is provided with an elastic lip (31), and the outer ring of the elastic lip (31) is provided with a sealing rib (32).

2. The sealing structure according to claim 1, characterized in that: The sealing ribs (32) are arranged in two or more layers along the vertical direction.

3. The sealing structure according to claim 1, characterized in that: The elastic lip (31) extends downward from the top of the sealing ring (3) and curves outward with an arc.

4. The sealing structure according to claim 1 or 3, characterized in that: An inclined guide surface (33) is provided on the lower outer side of the elastic lip (31), and the bottom end of the elastic lip (31) is thinned to form an inlet end.

5. The sealing structure according to claim 1, characterized in that: The sealing part (23) is provided with an annular groove (231) for installing the sealing ring (3). The inner wall of the annular groove (231) is provided with an installation hole (232). The inner ring of the sealing ring (3) is provided with an installation pin (34), which is inserted into the installation hole (232).

6. The sealing structure according to claim 5, characterized in that: The mounting pin (34) is provided with a barb (341), which passes through the mounting hole (232) and abuts against the inner wall behind the mounting hole (232).

7. The sealing structure according to claim 6, characterized in that: The end of the barb (341) is also provided with a pull post (342).

8. The sealing structure according to claim 7, characterized in that: The bucket lid (2) includes a top cover (21) and a lower support (22). The lower support (22) is fixed below the top cover (21), and the sealing part (23) is formed on the upper side wall of the lower support (22). The top cover (21) and the lower support (22) are detachably assembled. An upwardly open operating cavity (24) is provided at the top between the lower parts. The mounting hole (232) is arranged on the side wall of the operating cavity (24), and the mounting pin (34) is inserted into the operating cavity (24).

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