Fully-sealed waterproof and dustproof lifting column

Abstract

The fully-sealed waterproof and dustproof lifting column comprises a lifting column body and a pre-embedded cylinder, and a multi-layer sealing structure is arranged between the top of the pre-embedded cylinder and the lifting column body; the multi-layer sealing structure comprises a flange plate and a wear-resisting sealing sleeve, the top of the wear-resisting sealing sleeve is provided with an annular edge structure, the wear-resisting sealing sleeve is located between the top of the pre-embedded barrel and the lifting column body, a through hole is formed in the annular edge structure, and a plurality of threaded holes are formed in the top of the pre-embedded barrel; in conclusion, the multi-layer sealing structure is arranged between the embedded cylinder and the lifting column body and comprises the nylon sleeve, the oil sealing ring, the dust sealing ring and the multiple sealing rings, so that the sealing, water blocking and dust preventing effects are achieved, the lifting column is protected, and the service life of the lifting column is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting columns, and in particular relates to a fully sealed waterproof and dustproof lifting column. Background Art

[0002] Lifting bollards, also known as lifting ground bollards, lifting road bollards, anti-collision road bollards, hydraulic lifting bollards or isolation piles, etc. Lifting bollards are generally buried at road intersections, landscape roads, scenic area entrances and other intersections to block traffic at the right time. Since the lifting bollards are buried underground, they are often eroded by rain and soil. If the lifting bollards do not have a good sealing structure, the service life of the lifting bollards will be greatly reduced. Most of the existing lifting bollards use simple sealing rings for sealing, and the sealing effect is average. There will still be large or small gaps between the road flange and the lifting bollard body, causing rainwater to pour into the lifting bollard through the gap, affecting its service life. Utility Model Content

[0003] The utility model aims to provide a fully sealed waterproof and dustproof lifting column, which solves the technical problems of the existing lifting column having a single sealing structure and poor sealing effect.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A fully sealed waterproof and dustproof lifting column comprises a lifting column body and an embedded cylinder, wherein a multi-layer sealing structure is arranged between the top of the embedded cylinder and the lifting column body;

[0006] The multi-layer sealing structure includes a flange and a wear-resistant sealing sleeve. The top of the wear-resistant sealing sleeve has a ring edge structure. The wear-resistant sealing sleeve is located between the top of the embedded tube and the lifting column body. The ring edge structure is provided with a perforation. The top of the embedded tube is provided with a plurality of threaded holes. The threaded holes and the perforations are arranged one by one. The flange is installed on the ring edge structure by a plurality of bolts, and the bolts are arranged in the perforations and the threaded holes.

[0007] The inner wall of the wear-resistant sealing sleeve is sequentially provided with a nylon sleeve, a dust seal ring and an oil seal ring from top to bottom, and the top surface of the nylon sleeve is flush with the flange.

[0008] Furthermore, a rubber sealing gasket is provided between the ring edge structure of the wear-resistant sealing sleeve and the top of the embedded tube.

[0009] Furthermore, a sealing ring is provided between the flange and the annular structure.

[0010] Furthermore, the inner wall of the wear-resistant sealing sleeve is provided with a first step ring groove, a second step ring groove, a third step ring groove and an oil seal installation ring groove. The first step ring groove, the second step ring groove and the third step ring groove are connected in sequence from top to bottom. The first step ring groove is used to install the sealing ring, the second step ring groove is used to install the nylon sleeve, the third step ring groove is used to install the dust seal ring, and the oil seal installation ring groove is used to install the oil seal ring.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a multi-layer sealing structure between the embedded tube and the lifting column body, and the multi-layer sealing structure includes a nylon sleeve, an oil sealing ring, a dust sealing ring and multiple sealing rings, thereby achieving a sealing, water-proof and dust-proof effect, protecting the lifting column and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of a fully sealed waterproof and dustproof lifting column;

[0014] Figure 2 It is a cross-sectional view of a fully sealed waterproof and dustproof lifting column;

[0015] Figure 3 It is a schematic diagram of the installation of a multi-layer sealing structure;

[0016] Figure 4 It is a schematic diagram of the structure of the wear-resistant sealing sleeve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The present invention is further described in detail below in conjunction with the embodiments.

[0019] like Figure 1-4 As shown, a specific embodiment of a fully sealed waterproof and dustproof lifting column provided by the utility model:

[0020] A fully sealed waterproof and dustproof lifting column comprises a lifting column body 1 and an embedded tube 2, wherein a multi-layer sealing structure 100 is arranged between the top of the embedded tube 2 and the lifting column body 1;

[0021] The multi-layer sealing structure 100 includes a flange 3 and a wear-resistant sealing sleeve 4. The top of the wear-resistant sealing sleeve 4 has an annular structure 5. The wear-resistant sealing sleeve 4 is located between the top of the embedded tube 2 and the lifting column body 1. The annular structure 5 is supported on the top of the embedded tube 2. The annular structure 5 is provided with a through hole. The top of the embedded tube 2 is provided with a plurality of threaded holes. The threaded holes and the through holes are arranged one by one. The flange 3 is installed on the annular structure 5 by a plurality of bolts 6, and the bolts 6 are inserted into the corresponding through holes and threaded holes. Finally, the installation of the wear-resistant sealing sleeve 4 is completed by the flange 3. In order to improve the sealing of the contact between the annular structure 5 and the top of the embedded tube 2, a rubber sealing pad 7 can be added between the annular structure 5 of the wear-resistant sealing sleeve 4 and the top of the embedded tube 2.

[0022] The inner wall of the wear-resistant sealing sleeve 4 is provided with a first step ring groove 8, a second step ring groove 9, a third step ring groove 10 and an oil seal installation ring groove 11. The first step ring groove 8, the second step ring groove 9 and the third step ring groove 10 are connected in sequence from top to bottom. The first step ring groove 8 is used to install a sealing ring 12, the second step ring groove 9 is used to install a nylon sleeve 13, the third step ring groove 10 is used to install a dust seal ring 14, and the oil seal installation ring groove 11 is used to install an oil seal ring 15. After all the sealing structures are installed, the sealing ring 12 is located between the flange 3, the wear-resistant sealing sleeve 4 and the nylon sleeve 13 to seal the above positions. The top surface of the nylon sleeve 13 is in contact with the The flanges 3 are flush with each other, and the nylon sleeve 13 has the characteristics of light weight, wear resistance, good self-lubrication, corrosion resistance, etc. It can reduce the friction of the lifting column body 1 during lifting and lowering, and protect the lifting column body 1 from wear; the dust seal ring 14 is located below the nylon sleeve 13, and is used to prevent external impurities such as dust, dirt, rainwater, etc. from entering the embedded tube 2, which is very important for protecting the internal cleanliness of the embedded tube 2, improving the stability of equipment operation and extending the service life; the oil seal ring 15 can also prevent external dust, moisture and other pollutants from invading the interior of the embedded tube 2, thereby protecting the embedded tube 2 and the lifting column body 1 from pollution, extending the service life, and ensuring the normal operation of the equipment.

[0023] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully sealed waterproof and dustproof lifting column, comprising a lifting column body and a pre-buried cylinder, characterized in that: A multi-layer sealing structure is provided between the top of the embedded tube and the lifting column body; The multi-layer sealing structure includes a flange and a wear-resistant sealing sleeve. The top of the wear-resistant sealing sleeve has a ring edge structure. The wear-resistant sealing sleeve is located between the top of the embedded tube and the lifting column body. The ring edge structure is provided with a perforation. The top of the embedded tube is provided with a plurality of threaded holes. The threaded holes and the perforations are arranged one by one. The flange is installed on the ring edge structure by a plurality of bolts, and the bolts are arranged in the perforations and the threaded holes. The inner wall of the wear-resistant sealing sleeve is sequentially provided with a nylon sleeve, a dust seal ring and an oil seal ring from top to bottom, and the top surface of the nylon sleeve is flush with the flange.

2. The fully sealed waterproof and dustproof lifting column according to claim 1, characterized in that: A rubber sealing pad is arranged between the ring edge structure of the wear-resistant sealing sleeve and the top of the embedded tube.

3. The fully sealed waterproof and dustproof lifting column according to claim 2, characterized in that: A sealing ring is arranged between the flange and the annular structure.

4. The fully sealed waterproof and dustproof lifting column according to claim 3, characterized in that: The inner wall of the wear-resistant sealing sleeve is provided with a first step ring groove, a second step ring groove, a third step ring groove and an oil seal installation ring groove. The first step ring groove, the second step ring groove and the third step ring groove are connected in sequence from top to bottom. The first step ring groove is used to install the sealing ring, the second step ring groove is used to install the nylon sleeve, the third step ring groove is used to install the dust seal ring, and the oil seal installation ring groove is used to install the oil seal ring.

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