Sealing ring and work station

Abstract

The utility model provides a sealing ring and a work station with better sealing performance, the sealing ring comprises a positioning part, and the positioning part is positioned on one radial side of the sealing ring; and the sealing part is located on the other side of the radial direction of the sealing ring, the sealing part can swing in the vertical direction relative to the positioning part, and a sealing face is formed on the upper surface of the sealing part.

Description

Technical Field

[0001] The utility model belongs to the field of cleaning, and in particular relates to a sealing ring and a workstation. Background Art

[0002] In order to improve the working efficiency of the cleaning equipment, a dust collection device is set in the workstation. The dust collection device has a dust collection fan. When the dust collection fan is started, the air in the dust box is discharged into the cavity to form a negative pressure, which can suck the garbage in the robot's garbage box into the dust bag in the dust box. In order to facilitate the removal of the dust bag in the dust box, the dust box is designed with an opening structure. The negative pressure of the dust box is a key factor affecting the dust collection effect. Whether the seal between the flap and the dust box is good has an important impact on the overall dust collection effect. Utility Model Content

[0003] In view of the above-mentioned deficiencies or defects in the prior art, the utility model provides a sealing ring and a workstation with high sealing performance.

[0004] The sealing ring provided by the utility model comprises: a positioning portion, which is located on one radial side of the sealing ring; and a sealing portion, which is located on the other radial side of the sealing ring. The sealing portion can swing in the up and down directions relative to the positioning portion, and the upper surface of the sealing portion forms a sealing surface.

[0005] Optionally, a supporting portion is provided between the positioning portion and the sealing portion, the supporting portion extends along a radial direction of the sealing ring, and the supporting portion is supported on a first external structural component.

[0006] Optionally, a first limiting portion is provided above the supporting portion, the first limiting portion is arranged close to the positioning portion, and a side of the first limiting portion away from the positioning portion forms a first stop surface abutting against the second external structural component.

[0007] Optionally, a reinforcing rib is provided between the first limiting portion and the supporting portion.

[0008] Optionally, a second limiting portion is provided below the supporting portion, and the second limiting portion is arranged away from the positioning portion. A limiting groove is formed among the second limiting portion, the supporting portion and the positioning portion, and a second stop surface abutting against the first external structural member is formed on the side of the second limiting portion close to the positioning portion; in a natural state, there is a gap between the second stop surface and the first external structural member.

[0009] Optionally, the positioning portion includes a seat body and a support plate, the support plate extends in an up-down direction, one end of the support plate is connected to the seat body, and the other end of the support plate is connected to the support portion.

[0010] The utility model provides a workstation, comprising: a frame, a receiving chamber is formed at the upper part of the frame; a dust collecting device, the dust collecting device is located in the receiving chamber, the dust collecting device comprises a dust collecting box and a negative pressure fan, the negative pressure fan generates negative pressure in the dust collecting box, an opening is provided at the upper part of the dust collecting box, and a positioning groove is provided at the open end of the upper part of the dust collecting box; the aforementioned sealing ring, the positioning part is installed in the positioning groove; a box cover, the box cover is rotatably connected to the frame, the box cover covers the opening of the dust collecting box, and in a sealed state, the box cover contacts the sealing surface of the sealing part.

[0011] Optionally, the positioning groove is arranged on the outer periphery of the upper opening end of the dust box, the positioning portion is located on the radially outward side of the sealing ring, the positioning portion is connected to the positioning groove by interference fit, and the sealing portion is located on the radially inward side of the sealing ring;

[0012] The dust box includes an outer groove plate and an inner groove plate that form the positioning groove, the inner groove plate extends into the limiting groove of the sealing ring, the inner groove plate is a first external structural member, and the top of the inner groove plate supports the supporting part. In a natural state, there is a gap between the inner groove plate and the second limiting part. When the inner groove plate and the sealing part are rotated downward to a preset angle, the inner wall of the inner groove plate contacts the second stop surface of the second limiting part.

[0013] Optionally, a decorative cover is fixedly mounted above the frame, the box cover is located above the decorative cover, and the decorative cover includes a positioning ring extending into the positioning groove and abutting against the positioning portion;

[0014] The decorative cover further includes a limiting ring located inside the positioning ring. The limiting ring is a second external structural component. The first stop surface of the first limiting portion abuts against the limiting ring.

[0015] Optionally, a boss extending downward is provided on the box cover, and an inwardly inclined chamfered portion is provided on the outer periphery of the lower portion of the boss, and when the dust box is in a sealed state, the chamfered portion contacts the sealing portion.

[0016] The sealing ring provided by the utility model arranges the sealing part on one side of the radial direction of the positioning part, and the sealing part can swing relative to the positioning part in the up and down directions, thereby increasing the deformation of the sealing part. In this way, the sealing ring has the advantages of both end face sealing and side face sealing, so that the sealing ring can achieve a tighter seal.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0019] Figure 1 Overall view of the sealing ring;

[0020] Figure 2 Sealing ring cross section;

[0021] Figure 3 Figure 2 Enlarged view of the circle shown;

[0022] Figure 4 Workstation machine diagram;

[0023] Figure 5 Workstation cross-section;

[0024] Figure 6 Figure 5 An enlarged view of circle A is shown. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0027] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings or are used to describe the relative positional relationships of components in the vertical, perpendicular or gravity direction.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Embodiment 1

[0030] like Figures 1 to 3 As shown, the sealing ring provided in this embodiment includes: a positioning portion 11, which is located on one radial side of the sealing ring; and a sealing portion 12, which is located on the other radial side of the sealing ring. The sealing portion 12 can swing in the up and down directions relative to the positioning portion 11, and the upper surface of the sealing portion 12 forms a sealing surface 121.

[0031] In this embodiment, the sealing ring is in a circular or square ring shape, and the vertical direction is perpendicular to the plane where the sealing ring is located. There is at least one sealing part, and of course multiple sealing parts can be set, such as two or three, and the multiple sealing parts are arranged in the vertical direction. The higher the sealing requirement of the sealing ring, the more sealing parts are set.

[0032] The sealing ring provided in this embodiment arranges the sealing portion 12 on one side of the radial direction of the positioning portion 11, and the sealing portion 12 swings in the up and down directions relative to the positioning portion 11, thereby increasing the deformation of the sealing portion 11. In this way, the sealing ring has the advantages of both end face sealing and side sealing, so that the sealing ring can achieve a tighter seal.

[0033] A supporting portion 13 is disposed between the positioning portion 11 and the sealing portion 12 . The supporting portion 13 extends along the radial direction of the sealing ring and is supported on the first external structural component.

[0034] The sealing ring provided in this embodiment, by adding a support portion 13, firstly provides support for the swing of the sealing portion 12 in the up and down directions, and secondly reduces the radial length of the sealing portion 12, thereby increasing the supporting strength of the sealing portion 12 in the up and down directions, so that the sealing portion is in close contact with the structural member to be sealed, so that the sealing ring can achieve tight sealing.

[0035] A first limiting portion 14 is disposed above the supporting portion 13 . The first limiting portion 14 is disposed close to the positioning portion 11 . A side of the first limiting portion 14 away from the positioning portion 11 forms a first stop surface that abuts against the second external structural member.

[0036] The first limiting portion 14 provides a pulling force to the sealing portion 12, increasing the resistance to the downward rotation of the sealing portion 12, thereby increasing the supporting strength of the sealing portion 12 in the up and down directions, making the sealing portion in close contact with the structural member to be sealed, thereby increasing the sealing strength of the sealing ring.

[0037] A reinforcing rib 15 is provided between the first limiting portion 14 and the supporting portion 13. The reinforcing rib 15 increases the connection strength between the first limiting portion 14 and the supporting portion 13, so that the first limiting portion 14 is not easily deformed when in contact with the second external structural member, thereby increasing the resistance of the first limiting portion 14 to prevent the sealing portion 12 from rotating downward.

[0038] A second limiting portion 16 is provided below the supporting portion 13, and the second limiting portion 16 is arranged away from the positioning portion 11. A limiting groove is formed among the second limiting portion 16, the supporting portion 13 and the positioning portion 11. A second stop surface abutting against the first external structural member is formed on one side of the second limiting portion 16 close to the positioning portion; in a natural state, there is a gap between the second stop surface and the first external structural member.

[0039] In this embodiment, by setting the second limiting portion and the gap, when the sealing portion rotates downward to a preset angle, the second limiting portion provides a thrust to the sealing portion, increasing the resistance of the sealing portion to continue to rotate downward, thereby increasing the support strength of the sealing portion in the vertical direction, and further increasing the sealing strength of the sealing portion. In addition, the limiting groove formed between the second limiting portion 16, the supporting portion 13 and the positioning portion 11 increases the convenience of installing the sealing ring.

[0040] The positioning portion 11 includes a seat body 111 and a support plate 112 . The support plate 112 extends in the up-down direction. One end of the support plate 112 is connected to the seat body 111 , and the other end is connected to the support portion 13 .

[0041] By dividing the positioning part into two parts, namely, a seat body and a support plate, the connection strength of the positioning part is ensured, the material used for the sealing ring is reduced, and the cost of the sealing ring is reduced.

[0042] Embodiment 2

[0043] like Figures 4 to 6 As shown, the workstation provided by this embodiment includes: a frame 2, a receiving chamber is formed at the upper part of the frame 2; a dust collecting device, the dust collecting device is located in the receiving chamber, the dust collecting device includes a dust box 3 and a negative pressure fan 4, the negative pressure fan 4 is installed on the side of the dust box 3, the negative pressure fan generates negative pressure in the dust box 3, an opening is provided at the upper part of the dust box 3, and a positioning groove 31 is provided at the open end of the upper part of the dust box 3; the sealing ring 1 described in the first embodiment, the positioning part 11 is installed in the positioning groove 31; and a box cover 5, the box cover 5 is rotatably connected to the frame 2, the box cover 2 covers the opening of the dust box 4, and in the sealed state, the box cover 5 is in contact with the sealing surface of the sealing part 12.

[0044] Since the bottom of the box cover is a large flat surface, it is difficult to keep it flat during the manufacturing process. If a conventional end face seal is used, it will cause uneven contact between the box cover and the sealing ring, reduce the sealing between the box cover and the dust box, and affect the dust collection effect of the dust box. With the sealing ring provided in this embodiment, since the sealing part can swing and deform in the up and down directions, even if the bottom of the box cover is uneven, the box cover can still be in close contact with the sealing ring to ensure the sealing between the box cover and the dust box, thereby ensuring the dust collection effect of the dust box.

[0045] The positioning groove 41 is arranged on the outer periphery of the upper opening end of the dust box 3, the positioning portion 11 is arranged on the radially outward side of the sealing ring, the positioning portion 11 is connected with the positioning groove 31 by interference fit, and the sealing portion 12 is arranged on the radially inward side of the sealing ring. In this embodiment, the positioning portion of the sealing ring is fixedly mounted on the outer periphery of the opening end of the box body, and the sealing portion extends into the opening end of the box body and contacts the lower part of the box cover. In addition, if the positioning groove is arranged on the outer periphery of the upper opening end of the dust box and there is space outside the dust box, the sealing portion can also be arranged on the radially outward side of the sealing ring, and the positioning portion is arranged on the radially inward side of the sealing ring.

[0046] The interference fit connection between the positioning portion and the positioning groove can be achieved by providing a convex point on the side of the positioning portion, or by setting the radial dimension of the positioning portion to be slightly larger than the radial dimension of the positioning groove.

[0047] The dust box includes an outer groove plate 32 and an inner groove plate 33 forming a positioning groove 31. The inner groove plate 33 extends into the limiting groove of the sealing ring 1. The inner groove plate 33 is a first external structural member. The top of the inner groove plate 33 supports the support portion 13. In a natural state, there is a gap between the inner groove plate 33 and the second limiting portion 16. When the sealing portion rotates downward to a preset angle, the inner wall of the inner groove plate contacts the second stop surface of the second limiting portion. Along the radial direction of the dust box, the outer groove plate is located on the outside of the dust box, and the inner groove plate is located on the inside of the dust box. Through the cooperation of the inner groove plate and the limiting groove, better installation and positioning of the sealing ring can be achieved.

[0048] A decorative cover 6 is fixedly installed above the frame 2, and the box cover 5 is located above the decorative cover 6. The decorative cover 6 includes a positioning ring 61 that extends into the positioning groove 31 and stops at the positioning portion 11; the decorative cover 6 also includes a limiting ring 62 located on the inner side of the positioning ring 61, and the limiting ring 62 is a second external structural component. The first stop surface of the first limiting portion 14 abuts against the limiting ring 62.

[0049] The workstation provided in this embodiment is provided with a positioning ring 61 extending into the positioning groove 31 and abutting against the positioning portion 11, so that the sealing ring 1 can be more firmly installed on the dust box 3. The first limiting portion 14 extends between the limiting ring 62 and the positioning ring 61. Through the cooperation between the limiting ring 62 and the first limiting portion 14, the resistance of the sealing portion 12 to the downward rotation is increased, so that the sealing portion 12 supports the box cover 5 more firmly, thereby improving the sealing between the dust box 3 and the box cover 5.

[0050] The box cover 5 is provided with a boss 51 extending downward, and the outer periphery of the lower part of the boss 51 is provided with an inwardly inclined chamfered portion 511 . When the dust box 3 is in a sealed state, the chamfered portion 511 contacts the sealing portion 12 .

[0051] The box cover 5 includes an outer cover and an inner cover, the inner cover and the outer cover are connected by screws, and the boss 51 is arranged on the inner cover. Since the sealing portion 12 is inclined after being rotated downward, this embodiment increases the contact area between the box cover and the sealing ring by arranging an inclined chamfered portion on the boss 51, thereby improving the sealing between the dust box 3 and the box cover 5. The sealing state refers to the state in which the box cover covers the open end of the upper part of the dust box.

[0052] The above are only preferred implementation modes of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0054] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A sealing ring, characterized in that: include: A positioning portion, the positioning portion being located on one side of the sealing ring in a radial direction; as well as The sealing part is located at the other side of the sealing ring in the radial direction, and the sealing part can swing in the up and down directions relative to the positioning part, and the upper surface of the sealing part forms a sealing surface.

2. The sealing ring according to claim 1, characterized in that: A supporting portion is arranged between the positioning portion and the sealing portion. The supporting portion extends along the radial direction of the sealing ring and is supported on the first external structural component.

3. The sealing ring according to claim 2, characterized in that: A first limiting portion is disposed above the supporting portion. The first limiting portion is disposed close to the positioning portion. A side of the first limiting portion away from the positioning portion forms a first stop surface abutting against the second external structural member.

4. The sealing ring according to claim 3, characterized in that: A reinforcing rib is provided between the first limiting portion and the supporting portion.

5. The sealing ring according to claim 2, characterized in that: A second limiting portion is provided below the supporting portion, and the second limiting portion is arranged away from the positioning portion. A limiting groove is formed among the second limiting portion, the supporting portion and the positioning portion, and a second stop surface abutting against the first external structural component is formed on one side of the second limiting portion close to the positioning portion; in a natural state, there is a gap between the second stop surface and the first external structural component.

6. The sealing ring according to claim 2, characterized in that: The positioning portion includes a seat body and a support plate, the support plate extends in the up-down direction, one end of the support plate is connected to the seat body, and the other end is connected to the support portion.

7. A workstation, characterized in that: include: A frame, wherein an upper portion of the frame forms a receiving cavity; A dust collecting device, the dust collecting device is located in the receiving chamber, the dust collecting device comprises a dust collecting box and a negative pressure fan, the negative pressure fan generates negative pressure in the dust collecting box, an opening is provided at the upper portion of the dust collecting box, and a positioning groove is provided at the open end of the upper portion of the dust collecting box; The sealing ring according to any one of claims 1 to 6, wherein the positioning portion is installed in the positioning groove; and A box cover is rotatably connected to the frame, and the box cover seals the opening of the dust box. In a sealed state, the box cover contacts a sealing surface of the sealing portion.

8. The workstation according to claim 7, characterized in that The positioning groove is arranged on the outer periphery of the upper opening end of the dust box, the positioning portion is located on the radially outward side of the sealing ring, the positioning portion is connected to the positioning groove by interference fit, and the sealing portion is located on the radially inward side of the sealing ring; The dust box includes an outer groove plate and an inner groove plate that form the positioning groove, the inner groove plate extends into the limiting groove of the sealing ring, the inner groove plate is a first external structural member, and the top of the inner groove plate supports the supporting part. In a natural state, there is a gap between the inner groove plate and the second limiting part. When the inner groove plate and the sealing part are rotated downward to a preset angle, the inner wall of the inner groove plate contacts the second stop surface of the second limiting part.

9. The workstation according to claim 7, characterized in that: A decorative cover is fixedly mounted above the frame, the box cover is located above the decorative cover, and the decorative cover includes a positioning ring extending into the positioning groove and abutting against the positioning portion; The decorative cover further includes a limiting ring located inside the positioning ring. The limiting ring is a second external structural component. The first stop surface of the first limiting portion abuts against the limiting ring.

10. The workstation according to claim 7, characterized in that: The box cover is provided with a boss extending downward, and the outer periphery of the lower part of the boss is provided with a chamfered portion inclined inwardly, and when the dust box is in a sealed state, the chamfered portion contacts the sealing portion.

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