CN216812850U - Dust ring for hydraulic telescopic support - Google Patents

Abstract

The utility model relates to the technical field of dust rings and discloses a dust ring for a hydraulic telescopic support, which comprises a support body, wherein a protective body is fixedly connected to the surface of the support body, dust collecting grooves are symmetrically formed in the top and the bottom of the protective body, an arc-shaped groove is formed in the inner wall of the protective body, a reinforcing layer is fixedly connected to the outer surface of the protective body, the protective body comprises a wear-resistant layer made of natural rubber, a waterproof layer is fixedly connected to the surface of the wear-resistant layer and made of chloroprene rubber, and the protective body further comprises an anti-corrosion layer fixedly connected to the surface of the waterproof layer, so that the dust ring has certain corrosion resistance. This dust ring for hydraulic telescoping support through the effect that sets up the protective body for the inner wall edge of both sides can closely contact with the piston rod about the protective body, makes can be more convenient clears up the dust on the piston rod.

Description

A kind of dust ring for hydraulic telescopic support

technical field

The utility model relates to the technical field of dustproof rings, in particular to a dustproof ring for a hydraulic telescopic support.

Background technique

The dust ring is installed on the piston rod to prevent external dust from mixing into the reciprocating seal of the hydraulic cylinder. Precautions for the use of the dust ring: All dust rings cannot bear pressure, that is, they do not have a sealing function. Dustproof, must be used in conjunction with other seals. The lip of the dustproof ring should be designed to avoid contact with the piston rod hole or the opposite side of the wrench, resulting in being cut. The dustproof ring is used on the hydraulic and pneumatic piston rod. The main function It is to remove the dust attached to the outer surface of the piston cylinder and prevent sand, water and pollutants from entering the sealed cylinder. Most of the dust rings used in practice are made of rubber materials. Rubber materials are required to have particularly good wear resistance and low compression set performance. In recent years, new dust-proof seals using other materials and rubber materials have been gradually promoted, such as the combination of PTFE and O-rings. The combined sealing effect is good, the service life is long, and the application is increasingly widespread. In the prior art, there is a gap between the dustproof ring and the piston rod, resulting in incomplete cleaning of dust.

Utility model content

The purpose of the utility model is to provide a dust-proof ring for a hydraulic telescopic support, which solves the problem of incomplete cleaning of dust caused by a gap between the dust-proof ring and the piston rod.

In order to achieve the above purpose, the utility model provides the following technical solutions: a dust ring for a hydraulic telescopic support, comprising a support body, the surface of the support body is fixedly connected with a protective body, and the top and bottom of the protective body are symmetrically opened with In the dust collecting groove, the inner wall of the protective body is provided with an arc groove, and the outer surface of the protective body is fixedly connected with a reinforcement layer.

Preferably, the protective body includes a wear-resistant layer, and the material of the wear-resistant layer is natural rubber, so that the dustproof ring has wear resistance when the piston rod is dedusted.

Preferably, the protective body further includes a waterproof layer, the waterproof layer is fixedly connected to the surface of the wear-resistant layer, the material of the waterproof layer is neoprene, and the dustproof ring when the waterproof layer is provided has a certain degree of waterproofness .

Preferably, the protective body further includes a corrosion-resistant layer, the corrosion-resistant layer is fixedly connected to the surface of the waterproof layer, and the material of the corrosion-resistant layer is polytetrafluoroethylene, so that the dust ring has a certain corrosion resistance, So that the dust ring will not corrode due to contact with dirt with high acidity and alkalinity when it is in use.

Preferably, the protective body further includes a fireproof layer, the fireproof layer is fixedly connected to the surface of the corrosion-resistant layer, and the material of the fireproof layer is nitrile rubber, so that the dust ring can be used at high temperature, avoiding the dust ring Deformation occurs, resulting in a reduction in the contact area between the wiper and the piston rod, thereby reducing the ability to remove dust.

Preferably, three reinforcement layers are provided, and the material of the three reinforcement layers is cis-butadiene rubber, so that the dust ring is not easily deformed during use.

Preferably, two support bodies are provided, the support body is made of high-density polyethylene, and the provided reinforcement layer can prevent the dust ring from deforming outward, so that it can be in close contact with the piston rod.

The utility model provides a dustproof ring for a hydraulic telescopic support. The dust ring for the hydraulic telescopic support has the following beneficial effects:

(1) In the present utility model: the dust-proof ring used for the hydraulic telescopic support, through the function of setting the protective body, makes the inner wall edges of the upper and lower sides of the protective body can be closely contacted with the piston rod, so that the piston rod can be more conveniently Dust to be cleaned.

(2) In the present utility model: the dust ring for the hydraulic telescopic support has wear resistance by setting the protective body, the support body and the reinforcement layer, and the dust ring can be used at high temperature, and is not easily deformed, And the dust ring is more stable.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the utility model;

Fig. 2 is the sectional structure schematic diagram of the utility model;

FIG. 3 is a schematic diagram of the internal cross-sectional structure of the utility model.

In the figure: 1. Support body; 2. Protective body; 3. Reinforcing layer; 4. Wear-resistant layer; 5. Waterproof layer; 6. Corrosion-resistant layer; 7. Fireproof layer.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Examples of such embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial direction", "circumferential direction", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying the indicated device. Or the elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

As shown in Figures 1-3, the present utility model provides a technical solution: a dust ring for a hydraulic telescopic support, comprising a support body 1, a surface of the support body 1 is fixedly connected with a protective body 2, and the top of the protective body 2 and the The bottom is symmetrically provided with a dust collecting groove, the inner wall of the protective body 2 is provided with an arc groove, and the outer surface of the protective body 2 is fixedly connected with a reinforcement layer 3;

The protective body 2 includes a wear-resistant layer 4, and the material of the wear-resistant layer 4 is natural rubber, so that the dustproof ring has wear-resistant performance. When the piston rod is dedusted, the protective body 2 also includes a waterproof layer 5. The waterproof layer 5 It is fixedly connected to the surface of the wear-resistant layer 4, the material of the waterproof layer 5 is neoprene, the dust-proof ring when the waterproof layer 5 is set has a certain degree of waterproofness, and the protective body 2 also includes a corrosion-resistant layer 6, which is It is fixedly connected to the surface of the waterproof layer 5, and the material of the corrosion-resistant layer 6 is polytetrafluoroethylene, so that the dust-proof ring has a certain corrosion resistance, so that the dust-proof ring will not be used because of the dirt with high acid and alkali. Corrosion occurs due to contact. The protective body 2 also includes a fireproof layer 7. The fireproof layer 7 is fixedly connected to the surface of the corrosion-resistant layer 6. The material of the fireproof layer 7 is nitrile rubber, so that the dust ring can be used at high temperatures to avoid dust The deformation of the ring leads to the reduction of the contact area between the dust ring and the piston rod, thereby reducing the dust removal ability. There are three reinforcement layers 3, and the material of the three reinforcement layers 3 is cis-butadiene rubber, so that the dust ring is not easy to occur when it is used. Deformation, the support body 1 is provided with two, the material of the support body 1 is high-density polyethylene, and the reinforcement layer 3 provided can prevent the dust ring from deforming outward, so that it can be in close contact with the piston rod. By setting the protective body 2 , so that the inner wall edges of the upper and lower sides of the protective body 2 can be in close contact with the piston rod, so that the dust on the piston rod can be cleaned more conveniently.

When the dust-proof ring for the hydraulic telescopic bracket is in use, the dust-proof ring is sleeved on the piston rod that needs to be dust-proof, and the dust-proof ring is moved up and down to make the dust-proof ring and the piston rod in close contact, because the inner wall of the protective body 2 An arc-shaped groove is provided, so that when the arc-shaped groove is in contact with the piston rod, the inner wall edges of the upper and lower sides of the protective body 2 can be closely contacted with the piston rod, so that the dust on the piston rod can be cleaned more conveniently. The wear-resistant layer 4 inside is made of neoprene, so that the dust-proof ring has wear-resistant performance. When the piston rod is dedusted, the dust-proof ring needs to be in constant contact with the piston rod, and the wear-resistant layer 4 is provided. , which can increase the service life of the dust ring. When the waterproof layer is set, the dust ring has a certain degree of waterproofness. The material of the corrosion-resistant layer 6 in the protective body 2 is PTFE, so that the dust ring has a certain degree of resistance. Corrosion performance, so that the dust ring will not corrode due to contact with dirt with high acid and alkali during use. The material of the fireproof layer 7 in the protective body 2 is nitrile rubber, so that the dust ring can be used at high temperatures. , to avoid the deformation of the dustproof ring, resulting in the reduction of the contact area between the dustproof ring and the piston rod, thereby reducing the dust removal ability. Deformation, the reinforcement layer 3 provided can prevent the dust ring from deforming outward, so that it can be in close contact with the piston rod. The material of the support body 1 in the protective body 2 is high-density polyethylene, which makes the dust ring more stable.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprises a reference structure" does not preclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

Claims (7)

1. The utility model provides a hydraulic pressure is dust ring for telescopic bracket, includes supporter (1), its characterized in that: the surface of the supporting body (1) is fixedly connected with a protection body (2), the top and the bottom of the protection body (2) are symmetrically provided with dust collecting grooves, the inner wall of the protection body (2) is provided with an arc-shaped groove, and the outer surface of the protection body (2) is fixedly connected with a reinforcing layer (3).

2. The wiper blade for a hydraulic telescopic bracket according to claim 1, wherein: the protective body (2) comprises a wear-resistant layer (4), and the wear-resistant layer (4) is made of natural rubber.

3. The hydraulic telescopic bracket dust ring according to claim 1, characterized in that: the protective body (2) further comprises a waterproof layer (5), the waterproof layer (5) is fixedly connected to the surface of the wear-resistant layer (4), and the waterproof layer (5) is made of chloroprene rubber.

4. The hydraulic telescopic bracket dust ring according to claim 1, characterized in that: the protective body (2) further comprises a corrosion-resistant layer (6), the corrosion-resistant layer (6) is fixedly connected to the surface of the waterproof layer (5), and the corrosion-resistant layer (6) is made of polytetrafluoroethylene.

5. The hydraulic telescopic bracket dust ring according to claim 1, characterized in that: the protective body (2) further comprises a fireproof layer (7), the fireproof layer (7) is fixedly connected to the surface of the corrosion-resistant layer (6), and the fireproof layer (7) is made of nitrile rubber.

6. The hydraulic telescopic bracket dust ring according to claim 1, characterized in that: the number of the reinforcing layers (3) is three, and the material of the three reinforcing layers (3) is butadiene rubber.

7. The hydraulic telescopic bracket dust ring according to claim 1, characterized in that: the number of the support bodies (1) is two, and the material of the support bodies (1) is high-density polyethylene.

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