Linear guide rail pair double-lip sealing structure

Abstract

The utility model discloses a linear guide rail pair double-lip sealing structure, which belongs to the technical field of linear guide rails and comprises a linear guide rail, a sliding seat is slidably connected to the outer surface of the linear guide rail, a double-lip sealing strip is fixedly connected to the inner wall of the sliding seat, a U-shaped groove and two placing grooves are formed in the double-lip sealing strip, and the U-shaped groove is fixedly connected with the sliding seat. The inner wall of the U-shaped groove is fixedly connected with two first U-shaped spring pieces, and the inner wall of each first U-shaped spring piece is fixedly connected with a set of first elastic springs. Through the arrangement of the double-lip sealing strip, the first U-shaped spring piece, the second U-shaped spring piece, the first V-shaped spring piece, the second V-shaped spring piece, the first elastic spring, the second elastic spring and the third elastic spring, automatic elastic supporting and elastic force compensation can be conducted on the side portion of the double-lip sealing strip, and effective and constant sealing of the linear guide rail is achieved; the problem that manual adjustment is troublesome is solved, and the double-lip sealing strip can be used for long-term efficient sealing and dust prevention conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of linear guide rails, in particular to a linear guide rail pair double-lip sealing structure. Background Art

[0002] Linear guides can be divided into three types: roller linear guides, cylindrical linear guides, and ball linear guides. They are used to support and guide moving parts to perform reciprocating linear motion in a given direction. Depending on the nature of friction, linear motion guides can be divided into sliding friction guides, rolling friction guides, elastic friction guides, fluid friction guides and other types. There is a gap between the existing linear guide and the slide seat, so a double-lip inner sealing strip needs to be installed for dust prevention.

[0003] A Chinese patent with announcement number CN213744517U discloses a linear guide rail double-lip sealing structure, but the above patent still has certain shortcomings when used. Although the seal can be adjusted according to the wear condition of the sealing strip, it cannot be adjusted automatically and requires manual adjustment, which is more troublesome to operate. Therefore, technical personnel in this field provide a linear guide rail double-lip sealing structure to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a linear guide rail pair double-lip sealing structure to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A linear guide rail auxiliary double-lip sealing structure comprises a linear guide rail, the outer surface of the linear guide rail is slidably connected with a sliding seat, the inner wall of the sliding seat is fixedly connected with a double-lip sealing strip, the double-lip sealing strip is provided with a U-shaped groove and two placement grooves inside, the inner wall of the U-shaped groove is fixedly connected with two first U-shaped spring sheets, the inner wall of each of the first U-shaped spring sheets is fixedly connected with a group of first elastic springs, the inner wall of each of the placement grooves is fixedly connected with a second U-shaped spring sheet and a first V-shaped spring sheet, the inner wall of each of the second U-shaped spring sheets is fixedly connected with two groups of second elastic springs, the inner wall of each of the first V-shaped spring sheets is fixedly connected with a third elastic spring, the front side of the sliding seat is fixedly connected with two support rods, the front end of each group of the support rods is fixedly connected with a scraper plate, and the outer surface of each of the scraper plates is provided with a scraper opening.

[0007] As a further solution of the utility model: the inner wall of each placement groove is fixedly connected with a second V-shaped spring piece, and the second V-shaped spring piece is located in the middle of the placement groove.

[0008] As a further solution of the utility model: the back side of the scraper plate is fixedly connected to two supports, the inner walls of the two supports are hinged with a brush cleaning roller via two pins, and the outer surface of the brush cleaning roller contacts the inner wall of the linear guide rail.

[0009] As a further solution of the utility model: the two scraping plates are provided with dust discharge ports on their side surfaces which are away from each other, and the dust discharge ports are U-shaped ports.

[0010] As a further solution of the utility model: both left and right side surfaces of the slide seat are fixedly connected with lifting rings, and the lifting rings are located in the middle of the slide seat.

[0011] As a further solution of the utility model: a model plate is fixedly connected to the upper surface of the slide seat, and the model plate is located in the middle of the slide seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The linear guide rail auxiliary double-lip sealing structure can automatically elastically support and compensate for the elastic force of the side of the double-lip sealing strip through the double-lip sealing strip, the first U-shaped spring sheet, the second U-shaped spring sheet, the first V-shaped spring sheet, the second V-shaped spring sheet, the first elastic spring, the second elastic spring and the third elastic spring, so as to achieve effective and constant sealing of the linear guide rail, avoid the problem of troublesome manual adjustment, and facilitate the long-term and efficient sealing and dust-proof use of the double-lip sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a linear guide pair double-lip sealing structure;

[0015] Figure 2 It is a schematic diagram of the internal dissection structure of a slide seat in a double-lip seal structure of a linear guide rail pair;

[0016] Figure 3 It is a cross-sectional view of a top view of a slide seat in a double-lip seal structure of a linear guide rail pair;

[0017] Figure 4 It is a cross-sectional view of the side view of the slide seat in a double-lip seal structure of a linear guide rail.

[0018] In the figure: 1. linear guide; 2. double-lip sealing strip; 3. slide seat; 4. model plate; 5. lifting ring; 6. U-shaped groove; 7. second U-shaped spring sheet; 8. placement groove; 9. dust scraper plate; 10. dust exhaust port; 11. scraper mouth; 12. second V-shaped spring sheet; 13. second elastic spring; 14. first U-shaped spring sheet; 15. first elastic spring; 16. third elastic spring; 17. first V-shaped spring sheet; 18. support; 19. brush cleaning roller; 20. support rod. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] See also Figures 1 to 4 In the embodiment of the utility model, a linear guide rail double-lip sealing structure includes a linear guide rail 1, a sliding seat 3 is slidably connected to the outer surface of the linear guide rail 1, a double-lip sealing strip 2 is fixedly connected to the inner wall of the sliding seat 3, a U-shaped groove 6 and two placement grooves 8 are opened inside the double-lip sealing strip 2, two first U-shaped spring pieces 14 are fixedly connected to the inner wall of the U-shaped groove 6, a group of first elastic springs 15 are fixedly connected to the inner wall of each first U-shaped spring piece 14, a second U-shaped spring piece 7 and a first V-shaped spring piece 17 are fixedly connected to the inner wall of each placement groove 8, two groups of second elastic springs 13 are fixedly connected to the inner wall of each second U-shaped spring piece 7, and a third elastic spring 16 is fixedly connected to the inner wall of each first V-shaped spring piece 17, and two support rods 20 are fixedly connected to the front of the sliding seat 3, and a dust scraper 9 is fixedly connected to the front end of each group of support rods 20, and a scraper opening 11 is opened on the outer surface of each dust scraper 9.

[0022] The inner wall of each placement groove 8 is fixedly connected with a second V-shaped spring sheet 12, and the second V-shaped spring sheet 12 is located in the middle of the placement groove 8, and can elastically support the double-lip sealing strip 2, so as to facilitate the effective sealing of the double-lip sealing strip 2. The back of the scraper plate 9 is fixedly connected with two supports 18, and the inner walls of the two supports 18 are hinged with a brush cleaning roller 19 through two pin shafts. The outer surface of the brush cleaning roller 19 contacts the inner wall of the linear guide 1, and can brush and clean the linear guide 1, so as to facilitate the cleanliness of the surface of the linear guide 1. The two scrapers 9 are provided with a dust discharge port 10 on the side away from each other. The dust discharge port 10 is a U-shaped port, which can discharge the scraped dust, so as to facilitate the cleaning operation of the linear guide 1.

[0023] The left and right sides of the slide 3 are fixedly connected with a lifting ring 5, which is located in the middle of the slide 3. The slide 3 can be easily lifted to facilitate the installation of the slide 3. The upper surface of the slide 3 is fixedly connected with a model label 4, which is located in the middle of the slide 3. The model label 4 can explain the model of the sealing structure device to facilitate the staff's understanding and use.

[0024] The working principle of the utility model is as follows: when in use, the slide seat 3 and the double-lip sealing strip 2 are first clamped onto the top of the linear guide rail 1. During the sliding process of the slide seat 3, the double-lip sealing strip 2 is in contact with the linear guide rail 1 to perform double-lip sealing. At the same time, the first U-shaped spring sheet 14, the second U-shaped spring sheet 7, the first V-shaped spring sheet 17, the second V-shaped spring sheet 12, the first elastic spring 15, the second elastic spring 13 and the third elastic spring 16 are used to elastically support and compensate the inside of the double-lip sealing strip 2, so that the double-lip sealing strip 2 always contacts the linear guide rail 1, reducing the sealing effect of the double-lip sealing strip 2 due to wear, and realizing effective sealing of the slide seat 3. At the same time, during the sliding process, the dust scraper plate 9, the scraper edge 11 and the brush cleaning roller 19 are used to scrape and brush the dust on the inner wall of the linear guide rail 1 for pre-cleaning, so as to keep the linear guide rail 1 clean and realize the safe and long-term use of the slide seat 3.

[0025] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A linear guide rail double lip seal structure, comprising a linear guide rail (1), characterized in that: The outer surface of the linear guide rail (1) is slidably connected to a slide seat (3), the inner wall of the slide seat (3) is fixedly connected to a double-lip sealing strip (2), the inside of the double-lip sealing strip (2) is provided with a U-shaped groove (6) and two placement grooves (8), the inner wall of the U-shaped groove (6) is fixedly connected to two first U-shaped spring sheets (14), the inner wall of each of the first U-shaped spring sheets (14) is fixedly connected to a group of first elastic springs (15), and the inner wall of each of the placement grooves (8) is fixedly connected to a second U-shaped spring sheet (15). The sliding seat (3) comprises a first U-shaped spring sheet (7) and a first V-shaped spring sheet (17), the inner wall of each of the second U-shaped spring sheets (7) being fixedly connected with two groups of second elastic springs (13), the inner wall of each of the first V-shaped spring sheets (17) being fixedly connected with a third elastic spring (16), the front face of the sliding seat (3) being fixedly connected with two support rods (20), the front end of each group of the support rods (20) being fixedly connected with a dust scraper (9), and the outer surface of each of the dust scrapers (9) being provided with a scraper opening (11).

2. A linear guide rail double lip seal structure according to claim 1, characterized in that: A second V-shaped spring sheet (12) is fixedly connected to the inner wall of each placement groove (8), and the second V-shaped spring sheet (12) is located in the middle of the placement groove (8).

3. A linear guide rail double lip seal structure according to claim 1, characterized in that: The back of the scraper plate (9) is fixedly connected to two supports (18), the inner walls of the two supports (18) are hingedly connected to a brush cleaning roller (19) via two pins, and the outer surface of the brush cleaning roller (19) is in contact with the inner wall of the linear guide rail (1).

4. A linear guide rail double lip seal structure according to claim 1, characterized in that: A dust discharge port (10) is provided on the side surfaces of the two dust scraping plates (9) that are away from each other, and the dust discharge port (10) is a U-shaped port.

5. A linear guide rail double lip seal structure according to claim 1, characterized in that: The left and right side surfaces of the slide seat (3) are both fixedly connected with a lifting ring (5), and the lifting ring (5) is located in the middle of the slide seat (3).

6. A linear guide rail double lip seal structure according to claim 1, characterized in that: A model plate (4) is fixedly connected to the upper surface of the slide seat (3), and the model plate (4) is located in the middle of the slide seat (3).

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