Cylinder rod dustproof sleeve, hydraulic cylinder, air cylinder and electric cylinder

Abstract

The utility model belongs to the field of dust-proof sleeves, and particularly relates to a cylinder rod dust-proof sleeve and a hydraulic cylinder, an air cylinder and an electric cylinder adopting the cylinder rod dust-proof sleeve. The dustproof cover comprises a dustproof cover body made of filter cloth, a first fixing piece and a second fixing piece, the first fixing piece is used for fixing one end of the dustproof sleeve body to a cylinder rod or a cylinder rod head cap, and the second fixing piece is used for fixing the other end of the dustproof sleeve body to the front end of a cylinder barrel or a connecting piece of the cylinder barrel. According to the dustproof cover, the dustproof cover body made of the filter cloth is adopted to replace an existing corrugated dustproof cover, and the problem that the dustproof cover deforms due to large change of internal air pressure is solved mainly by utilizing the dustproof and breathable characteristics of the filter cloth. And meanwhile, by utilizing the characteristics of thinness and softness of the filter cloth, the overlying space of the dustproof sleeve can be saved when the cylinder rod shrinks.

Description

Technical Field

[0001] The utility model relates to a dustproof cover, in particular to a cylinder rod dustproof cover and a hydraulic cylinder, a pneumatic cylinder and an electric cylinder adopting the cylinder rod dustproof cover. Background Art

[0002] Pneumatic cylinders, electric cylinders, hydraulic cylinders and other cylindrical metal parts that guide the cylinder rod to perform linear reciprocating motion in the cylinder barrel. When the cylinder rod and the cylinder barrel move relative to each other in a dusty working environment, the cylinder rod is easily contaminated by dust and suffers wear and / or corrosion, which increases the friction between the cylinder rod and the cylinder barrel, thereby affecting the normal movement of the cylinder rod.

[0003] In the prior art, a corrugated dust cover is usually used to protect the cylinder rod from dust.

[0004] However, the material of the existing corrugated dust cover is not air-permeable. When the cylinder rod and the cylinder barrel move relative to each other, the change in the internal space of the dust cover will cause the dust cover to expand due to air shortage or shrink due to air shortage and deform, affecting the normal operation of the cylinder rod. To solve this problem, a method of punching air holes on the corrugated dust cover is usually adopted to achieve the purpose of leaking air pressure. However, when the aperture of the air hole is small, the effect of leaking air pressure is poor, and it will still cause the dust cover to expand due to air shortage or shrink due to air shortage and deform; when the aperture of the air hole is large, dust will enter the interior of the corrugated dust cover through the air hole, making it impossible to effectively prevent the cylinder rod from being worn and / or corroded by dust, thereby affecting the normal movement of the cylinder rod. Utility Model Content

[0005] The purpose of the utility model is to solve the technical problems that when the aperture of the air leakage hole on the existing corrugated dust cover is small, the leakage air pressure effect is poor, which easily causes the dust cover to become larger due to air inflation or smaller due to air deficiency and deformation; when the aperture of the air leakage hole is large, dust easily enters the interior of the corrugated dust cover through the air leakage hole, thereby failing to effectively prevent the cylinder rod from being worn and / or corroded by dust, thereby affecting the normal movement of the cylinder rod, and provides a cylinder rod dust cover.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is:

[0007] A cylinder rod dust cover, which is special in that:

[0008] It includes a dust cover body made of filter cloth, a first fixing piece and a second fixing piece;

[0009] The first fixing member is used to fix one end of the dust cover body to the cylinder rod or the cylinder rod head cap, and the second fixing member is used to fix the other end of the dust cover body to the front end of the cylinder or the connecting member of the cylinder;

[0010] Definition: When the cylinder rod is at its maximum extension, the distance between the first fixing part and the second fixing part is L1; when the two ends of the dust cover body are respectively fixed to the cylinder rod or the cylinder rod head cap and the front end of the cylinder barrel or the connecting part of the cylinder barrel through the first fixing part and the second fixing part, the distance between the dust cover body and the first fixing part is L; then: 1.02×L1≤L≤1.3×L1.

[0011] Furthermore, 1.05×L1≤L≤1.1×L1.

[0012] Furthermore, the first fixing member and the second fixing member are both cable ties;

[0013] The first fixing member fixes one end of the dust cover body to the cylinder rod or the cylinder rod head cap through a tie groove correspondingly provided on the cylinder rod or the cylinder rod head cap;

[0014] The second fixing member fixes the other end of the dust cover body to the front end of the cylinder or the connecting piece of the cylinder through the tie groove correspondingly provided on the front end of the cylinder or the connecting piece of the cylinder.

[0015] Furthermore, the size of the opening at one end of the dust cover body is adapted to the diameter of the cylinder rod or the cylinder rod head cap, and the size of the opening at the other end is adapted to the outer diameter of the cylinder end or the size of the connecting piece of the cylinder.

[0016] Furthermore, the dust cover body is cylindrical.

[0017] At the same time, the utility model also provides a hydraulic cylinder, comprising a cylinder barrel, a cylinder rod mounted on the cylinder barrel, a cylinder rod head cap mounted on the end of the cylinder rod, and a connecting piece mounted on the cylinder barrel;

[0018] Its special features are:

[0019] Also included is the aforementioned cylinder rod dust cover;

[0020] One end of the dust cover body is fixed to the cylinder rod or the cylinder rod head cap through a first fixing piece, and the other end is fixed to the end of the cylinder barrel or the connecting piece of the cylinder barrel through a second fixing piece.

[0021] At the same time, the utility model also provides a cylinder, comprising a cylinder barrel, a cylinder rod mounted on the cylinder barrel, a cylinder rod head cap mounted on the end of the cylinder rod, and a connecting piece mounted on the cylinder barrel;

[0022] Its special features are:

[0023] Also included is the aforementioned cylinder rod dust cover;

[0024] One end of the dust cover body is fixed to the cylinder rod or the cylinder rod head cap through a first fixing piece, and the other end is fixed to the end of the cylinder barrel or the connecting piece of the cylinder barrel through a second fixing piece.

[0025] At the same time, the utility model also provides an electric cylinder, comprising a cylinder barrel, a cylinder rod mounted on the cylinder barrel, a cylinder rod head cap mounted on the end of the cylinder rod, and a connecting piece mounted on the cylinder barrel;

[0026] Its special features are:

[0027] Also included is the aforementioned cylinder rod dust cover;

[0028] One end of the dust cover body is fixed to the cylinder rod or the cylinder rod head cap through a first fixing piece, and the other end is fixed to the end of the cylinder barrel or the connecting piece of the cylinder barrel through a second fixing piece.

[0029] The beneficial effects of the utility model are:

[0030] This utility model uses a dust cover made of filter cloth, replacing the existing corrugated dust cover. This utilizes the filter cloth's dust-proof and breathable properties to address the problem of dust cover deformation caused by large internal pressure fluctuations. Furthermore, the filter cloth's thinness and flexibility reduce the space required for dust cover stacking when the cylinder rod retracts. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural schematic diagram of a cylinder rod dust cover of the utility model when the cylinder rod is in an extended state;

[0032] Figure 2 yes Figure 1 sectional view of .

[0033] In the picture:

[0034] 01-cylinder rod, 02-cylinder rod head cap, 03-cylinder barrel;

[0035] 1-Dust cover body, 2-Cable tie. DETAILED DESCRIPTION

[0036] In order to make the purpose, advantages and features of the present invention more clear, the following is a further detailed description of a cylinder rod dust cover proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following specific embodiments, the advantages and features of the present invention will be more clear.

[0037] See also Figure 1 and Figure 2 In this embodiment, a cylinder rod dust cover includes a cylindrical dust cover body 1.

[0038] Specifically, the dust cover body 1 is made of thin and soft filter cloth sewn or glued, and is mainly suitable for dust prevention of the cylinder body of a linear drive mechanism such as a cylinder, an electric cylinder or a hydraulic cylinder.

[0039] One end of the dust cover body 1 is fixed to the tie groove of the cylinder rod 01 or the cylinder rod head cap 02 by a tie 2, and the other end is fixed to the end of the cylinder 03 or the tie groove of the cylinder 03 connector by a tie 2. The specific installation and fixing position can be set according to actual needs. In this embodiment, one end of the dust cover body 1 is fixed to the cylinder rod head cap 02, and the other end is fixed to the end of the cylinder 03 for illustration.

[0040] Definition: When the cylinder rod (01) is at its maximum extension, the distance between the first fixing member and the second fixing member is L1; when the two ends of the dust cover body (1) are fixed to the cylinder rod (01) or the cylinder rod head cap (02) and the front end of the cylinder barrel (03) or the connecting member of the cylinder barrel (03) through the first fixing member and the second fixing member, respectively, the distance between the dust cover body (1) and the first fixing member is L; then: 1.02×L1≤L≤1.3×L1; in this embodiment, it is preferably 1.05×L1≤L≤1.1×L1.

[0041] The size of the opening at one end of the dust cover body 1 can be determined according to the diameter of the cylinder rod 01 or the cylinder rod head cap 02, and the size of the opening at the other end can be determined according to the outer diameter of the end of the cylinder 03 or the size of the connecting part of the cylinder 03, so as to meet the needs of use.

[0042] It should be noted that the above-mentioned cable tie 2 is only a preferred fixing part used in the present invention to fix the dust cover body 1. In other embodiments of the present invention, it can also be fixed with fixing parts such as straps and throat clamps, and is not limited to the preferred embodiments of the present invention.

[0043] Since the extension length of the cylinder rod 01 will change according to the different working conditions when it is working, in order to meet the working needs of the cylinder rod 01, the length of the dust cover body 1 used should not be less than the maximum extension of the cylinder rod 01. Therefore, when the cylinder rod 01 is at the maximum extension, no external force will be applied to the dust cover body 1, thereby avoiding tearing of the dust cover body 1.

Claims

1. A cylinder rod dust boot, characterized by: It comprises a dust cover body (1) made of filter cloth, a first fixing member and a second fixing member; The first fixing member is used to fix one end of the dust cover body (1) to the cylinder rod (01) or the cylinder rod head cap (02), and the second fixing member is used to fix the other end of the dust cover body (1) to the front end of the cylinder barrel (03) or the connecting member of the cylinder barrel (03); Definition: When the cylinder rod (01) is at its maximum extension, the distance between the first fixing member and the second fixing member is L1; when the two ends of the dust cover body (1) are fixed to the cylinder rod (01) or the cylinder rod head cap (02) and the front end of the cylinder barrel (03) or the connecting member of the cylinder barrel (03) through the first fixing member and the second fixing member, respectively, the distance between the dust cover body (1) and the first fixing member is L; then: 1.02×L1≤L≤1.3×L1.

2. The cylinder rod dust boot according to claim 1, characterized in that: 1.05×L1≤L≤1.1×L1.

3. The cylinder rod dust boot according to claim 2, characterized in that: The first fixing member and the second fixing member are both cable ties (2); The first fixing member fixes one end of the dust cover body (1) on the cylinder rod (01) or the cylinder rod head cap (02) through a tie groove correspondingly provided on the cylinder rod (01) or the cylinder rod head cap (02); The second fixing member fixes the other end of the dust cover body (1) to the front end of the cylinder (03) or the connecting piece of the cylinder (03) via a tie groove correspondingly provided on the front end of the cylinder (03) or the connecting piece of the cylinder (03).

4. A cylinder rod dust boot according to any one of claims 1 to 3, characterized in that: The size of the opening at one end of the dust cover body (1) is adapted to the diameter of the cylinder rod (01) or the cylinder rod head cap (02), and the size of the opening at the other end is adapted to the outer diameter of the end of the cylinder barrel (03) or the size of the connecting piece of the cylinder barrel (03).

5. The cylinder rod dust boot according to claim 4, characterized in that: The dust cover body (1) is cylindrical.

6. A hydraulic cylinder comprising a cylinder barrel (03), a cylinder rod (01) mounted on the cylinder barrel (03), a cylinder rod cap (02) mounted on the end of the cylinder rod (01), and a connecting piece mounted on the cylinder barrel (03); Its characteristics are: Also includes a cylinder rod dust cover according to any one of claims 1 to 5; One end of the dust cover body (1) is fixed to the cylinder rod (01) or the cylinder rod head cap (02) through a first fixing member, and the other end is fixed to the end of the cylinder barrel (03) or the connecting member of the cylinder barrel (03) through a second fixing member.

7. A cylinder comprising a cylinder barrel (03), a cylinder rod (01) mounted on the cylinder barrel (03), a cylinder rod cap (02) mounted on the end of the cylinder rod (01), and a connecting piece mounted on the cylinder barrel (03); Its characteristics are: Also includes a cylinder rod dust cover according to any one of claims 1 to 5; One end of the dust cover body (1) is fixed to the cylinder rod (01) or the cylinder rod head cap (02) through a first fixing member, and the other end is fixed to the end of the cylinder barrel (03) or the connecting member of the cylinder barrel (03) through a second fixing member.

8. An electric cylinder comprising a cylinder barrel (03), a cylinder rod (01) mounted on the cylinder barrel, a cylinder rod cap (02) mounted on the end of the cylinder rod (01), and a connecting piece mounted on the cylinder barrel (03); Its characteristics are: Also includes a cylinder rod dust cover according to any one of claims 1 to 5; One end of the dust cover body (1) is fixed to the cylinder rod (01) or the cylinder rod head cap (02) through a first fixing member, and the other end is fixed to the end of the cylinder barrel (03) or the connecting member of the cylinder barrel (03) through a second fixing member.

Images