Anti-leakage oil cylinder

Abstract

The utility model discloses an anti-leakage oil cylinder, and relates to the technical field of mechanical engineering, the anti-leakage oil cylinder comprises a cylinder bottom, the top end of the cylinder bottom is fixedly connected with a cylinder barrel, and the top end of the cylinder barrel is fixedly connected with a cylinder cover. Oil leakage may occur in the cylinder cover, the double-lip sealing ring is used for reinforcing a sealing line, so that oil cannot easily leak out, if oil leakage occurs, the oil firstly leaks upwards to reach the position above the second partition plate and then is absorbed by the industrial oil absorption cotton, meanwhile, the first partition plate and the dustproof ring guarantee that the oil cannot leak upwards again, and if the oil permeates again, the oil cannot be absorbed by the industrial oil absorption cotton. And meanwhile, the DH dustproof sealing ring prevents the leaked oil from continuously leaking outwards, triple sandwich protection is achieved, and the problem that the device is prone to oil leakage is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to an anti-leakage oil cylinder. Background Art

[0002] Mechanical engineering technology is widely used in daily life, with hydraulic cylinders and pneumatic cylinders being among the most common. A hydraulic cylinder is a device that converts hydraulic energy into mechanical energy, primarily used to achieve linear reciprocating or oscillating motion. It is a key actuator in hydraulic systems and widely used in various machines. However, due to its unique construction, oil leakage is common during operation. Currently, most cylinders on the market use high-quality sealing rings to prevent oil leakage, but this is costly and ineffective.

[0003] Now, a novel anti-leakage oil cylinder is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-leakage oil cylinder to solve the problem of easy oil leakage mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a leakage-proof oil cylinder, comprising a cylinder bottom, the top end of the cylinder bottom is fixedly connected to a cylinder barrel, the top end of the cylinder barrel is fixedly connected to a cylinder cover, an inner piston is provided inside the cylinder barrel, the top end of the inner piston is fixedly connected to a piston rod, and an anti-leakage component is provided inside the cylinder cover.

[0006] The anti-leakage component includes a first baffle, which is arranged at the top end inside the cylinder head. The top and bottom ends of the first baffle are fixedly connected with industrial oil-absorbing cotton. The end of the industrial oil-absorbing cotton far from the first baffle is fixedly connected with a second baffle. The outer periphery of the piston rod is sleeved with a double-lip sealing ring, a dust ring is arranged above the double-lip sealing ring, and a DH dust ring is arranged above the dust ring.

[0007] Preferably, the vertical center line of the piston and piston rod in the cylinder coincides with the vertical center line of the cylinder barrel, and the second partition is fixedly connected to the cylinder cover.

[0008] Preferably, the double-lip sealing ring, dust ring, and DH dust ring are elastic, and the inner walls of the double-lip sealing ring, dust ring, and DH dust ring are tightly fitted with the outer wall of the piston rod.

[0009] Preferably, the industrial oil-absorbing cotton is bonded to the first partition plate and the second partition plate by adhesive, and the double-lip sealing ring, dustproof ring, and DH dustproof sealing ring are fixedly connected to the cylinder head.

[0010] Preferably, a sealing cover is fixedly connected to the top of the cylinder cover, a fixing plate is fixedly connected to the middle position of the periphery of the sealing cover, a nylon dust cover is provided above the fixing plate, a fixing ring is fixedly connected to the bottom of the nylon dust cover, a clamp is fixedly connected to the top of the nylon dust cover, the nylon dust cover is elastic, and the fixing ring is consistent with the shape and size of the fixing plate.

[0011] Preferably, a transparent rubber ring is fixedly connected to the bottom of the outer periphery of the sealing cover, a measuring paste is provided inside the transparent rubber ring, a sealing rubber ring is fixedly connected to the bottom end of the transparent rubber ring, the sealing rubber ring is connected to the inside of the measuring paste, and the inner wall of the sealing rubber ring is tightly fitted with the outer wall of the piston rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the anti-leakage oil cylinder not only realizes the anti-leakage function and the anti-corrosion function, but also realizes the oil discharge warning function;

[0013] (1) By providing a first baffle, industrial oil-absorbing cotton, double-lip sealing ring, dust ring and DH dust-proof sealing ring, when in use, as the piston rod reciprocates up and down, oil leakage may appear in the cylinder head. By providing a double-lip sealing ring, dust ring and DH dust-proof sealing ring in the cylinder head, the double-lip sealing ring is used to reinforce the sealing line so that the oil will not easily seep out. If oil leakage occurs, the oil will first seep upward to the top of the second baffle and then be absorbed by the industrial oil-absorbing cotton. At the same time, the first baffle and the dust ring ensure that the oil will not seep upward again. If the oil seeps again and reaches the top of the first baffle, it will be absorbed by the industrial oil-absorbing cotton again. At the same time, the DH dust-proof sealing ring prevents the oil from continuing to seep outward. The triple sandwich protection realizes the oil leakage prevention function;

[0014] (2) By providing a piston rod, a fixing plate, a nylon dust cover and a clamp, when in use, in order to prevent the piston rod from being corroded by rain, dust, stones, etc., the nylon dust cover can be put on the outside of the piston rod, the fixing ring and the fixing plate are fixed by screws, and then the clamp is fixed to the top of the piston rod. Since the nylon dust cover has elasticity, it will not affect the telescopic movement of the piston rod. At the same time, due to the material of the nylon dust cover, rain and dust will not penetrate into the piston rod, causing impurities to enter the cylinder and affect the movement of the piston rod, thereby achieving an anti-corrosion function;

[0015] (3) By providing a transparent rubber ring, an oil measuring paste and a sealing rubber ring, when the machine is in use, if the internal parts are worn and aged after a long period of use, resulting in oil leakage, the leaked oil flows outward into the interior of the sealing rubber ring. Since the sealing rubber ring is connected to the interior of the transparent rubber ring, the leaked oil contacts the oil measuring paste, and the oil measuring paste changes color. It is possible to visually check from the outside whether there is oil leakage inside, which is convenient for maintenance and realizes the oil leakage warning function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0018] Figure 3 It is a partial front view cross-sectional enlarged structural diagram of the cylinder cover and the transparent rubber ring of the utility model;

[0019] Figure 4 This is a front view enlarged structural diagram of the nylon dust cover of the present utility model.

[0020] In the figure: 1. Cylinder bottom; 2. Cylinder barrel; 3. Cylinder head; 4. Piston in cylinder; 5. Piston rod; 6. First partition; 7. Industrial oil-absorbing cotton; 8. Second partition; 9. Double-lip seal; 10. Dust ring; 11. DH dust seal; 12. Sealing cover; 13. Fixed plate; 14. Nylon dust boot; 15. Fixed ring; 16. Clamp; 17. Transparent rubber ring; 18. Measuring paste; 19. Sealing rubber ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1-4 , an anti-leakage oil cylinder, comprising a cylinder bottom 1, the top of the cylinder bottom 1 is fixedly connected to a cylinder barrel 2, the top of the cylinder barrel 2 is fixedly connected to a cylinder cover 3, an inner cylinder piston 4 is arranged inside the cylinder barrel 2, the top of the inner cylinder piston 4 is fixedly connected to a piston rod 5, and an anti-leakage component is arranged inside the cylinder cover 3;

[0023] See also Figure 1-4, an anti-leakage oil cylinder also includes an anti-leakage component, the anti-leakage component includes a first partition 6, the first partition 6 is arranged at the top of the cylinder head 3, the top and bottom ends of the first partition 6 are fixedly connected with industrial oil-absorbing cotton 7, the end of the industrial oil-absorbing cotton 7 far from the first partition 6 is fixedly connected with a second partition 8, the outer periphery of the piston rod 5 is sleeved with a double-lip seal ring 9, a dust ring 10 is arranged above the double-lip seal ring 9, and a DH dust-proof seal ring 11 is arranged above the dust ring 10. The piston 4 and the piston rod 5 in the cylinder are The vertical center line coincides with the vertical center line of the cylinder 2. The second partition 8 is fixedly connected to the cylinder head 3. The double-lip seal ring 9, dust ring 10, and DH dust ring 11 are elastic. The inner walls of the double-lip seal ring 9, dust ring 10, and DH dust ring 11 are tightly fitted with the outer wall of the piston rod 5. The industrial oil-absorbing cotton 7 is bonded to the first partition 6 and the second partition 8 by adhesive. The double-lip seal ring 9, dust ring 10, and DH dust ring 11 are fixedly connected to the cylinder head 3, providing triple protection to prevent leakage.

[0024] Specifically, if Figure 2 and Figure 3 As shown, during use, as the piston rod 5 reciprocates up and down, oil leakage may occur in the cylinder head 3. By arranging a double-lip sealing ring 9, a dust ring 10, and a DH dust-proof sealing ring 11 in the cylinder head 3, the double-lip sealing ring 9 is used to reinforce the sealing line so that the oil will not seep out easily. If oil leakage occurs, the oil will first seep upward to the top of the second partition 8 and will be immediately absorbed by the industrial oil-absorbing cotton 7. At the same time, the first partition 6 and the dust ring 10 ensure that the oil will not seep upward again. If the oil seeps again and reaches the top of the first partition 6, it will be absorbed by the industrial oil-absorbing cotton 7 again. At the same time, the DH dust-proof sealing ring 11 prevents the oil from continuing to seep outward. The triple sandwich protection prevents oil from leaking from the cylinder.

[0025] Example 2: A sealing cover 12 is fixedly connected to the top of the cylinder head 3, and a fixing plate 13 is fixedly connected to the middle position of the outer periphery of the sealing cover 12. A nylon dust cover 14 is provided above the fixing plate 13, and a fixing ring 15 is fixedly connected to the bottom of the nylon dust cover 14. A clamp 16 is fixedly connected to the top of the nylon dust cover 14. The nylon dust cover 14 is elastic, and the fixing ring 15 is consistent in shape and size with the fixing plate 13 to protect the machine from erosion by rain, dust, etc.

[0026] Specifically, if Figure 1 、 Figure 2 and Figure 3As shown, during use, in order to prevent rain, dust, stones, etc. from eroding the piston rod 5, the nylon dust cover 14 can be put into the outside of the piston rod 5, and the fixing ring 15 and the fixing plate 13 can be fixed with screws. Then the clamp 16 is fixed to the top of the piston rod 5. Because the nylon dust cover 14 is elastic, it will not affect the telescopic activity of the piston rod 5. At the same time, due to the material of the nylon dust cover 14, rainwater and dust will not penetrate into the piston rod 5, causing impurities to enter the cylinder 2 and affect the activity of the piston rod 5, thereby preventing rainwater, dust, etc. from entering the machine and causing damage.

[0027] Example 3: A transparent rubber ring 17 is fixedly connected to the bottom of the outer periphery of the sealing cover 12, and a measuring paste 18 is provided inside the transparent rubber ring 17. A sealing rubber ring 19 is fixedly connected to the bottom end of the transparent rubber ring 17. The sealing rubber ring 19 is connected to the inside of the measuring paste 18. The inner wall of the sealing rubber ring 19 is tightly fitted with the outer wall of the piston rod 5, and visualization is convenient for maintenance;

[0028] Specifically, if Figure 1 、 Figure 2 and Figure 3 As shown, during use, if the machine has been used for a long time, the internal parts will be worn and aged, resulting in oil leakage, and the seeping oil will flow outward into the sealing rubber ring 19. Since the sealing rubber ring 19 is connected to the inside of the transparent rubber ring 17, the seeping oil will contact the oil measuring paste 18, and the oil measuring paste 18 will change color. It can be visually checked from the outside whether there is oil leakage inside, which is convenient for maintenance and easy to check whether there is oil leakage.

[0029] Working principle: When the utility model is in use, first, when in use, as the piston rod 5 reciprocates up and down, oil leakage may occur in the cylinder head 3. By arranging double-lip sealing rings 9, dust rings 10, and DH dust-proof sealing rings 11 in the cylinder head 3, the double-lip sealing rings 9 are used to reinforce the sealing line so that the oil will not seep out easily. If oil leakage occurs, the oil will first seep upward to the top of the second partition plate 8 and then be absorbed by the industrial oil-absorbing cotton 7. At the same time, the first partition plate 6 and the dust-proof ring 10 ensure that the oil will not seep upward again. If the oil penetrates again and reaches the top of the first partition plate 6, it will be absorbed by the industrial oil-absorbing cotton 7 again. At the same time, the DH dust-proof sealing ring 11 prevents the oil from continuing to seep outward. The triple sandwich protection is used to avoid the erosion of the piston rod 5 by rain, dust, stones, etc. The nylon dust cover 14 can be put into the outside of the piston rod 5, and the fixing ring 15 and the fixing plate 13 can be fixed with screws, and then the clamp 16 can be fixed to the top of the piston rod 5. Because the nylon dust cover 14 is elastic, it will not affect the telescopic activity of the piston rod 5. At the same time, due to the material of the nylon dust cover 14, rainwater and dust will not penetrate into the piston rod 5, causing impurities to enter the cylinder 2 and affect the activity of the piston rod 5. During use, if the machine has been used for a long time, the internal parts will wear and age, resulting in oil leakage. The seeped oil will flow outward into the inside of the sealing rubber ring 19. Because the sealing rubber ring 19 is connected to the inside of the transparent rubber ring 17, the seeped oil will contact the oil measuring paste 18, and the oil measuring paste 18 will change color. It can be visually checked from the outside whether there is oil leakage inside, which is convenient for maintenance.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An anti-leakage oil cylinder, comprising a cylinder bottom (1), characterized in that: The top end of the cylinder bottom (1) is fixedly connected to a cylinder barrel (2), the top end of the cylinder barrel (2) is fixedly connected to a cylinder cover (3), an inner cylinder piston (4) is provided inside the cylinder barrel (2), the top end of the inner cylinder piston (4) is fixedly connected to a piston rod (5), and an anti-leakage component is provided inside the cylinder cover (3); The anti-leakage component includes a first baffle (6), which is arranged at the top end inside the cylinder head (3), and the top and bottom ends of the first baffle (6) are fixedly connected to industrial oil-absorbing cotton (7), and the end of the industrial oil-absorbing cotton (7) far from the first baffle (6) is fixedly connected to a second baffle (8), and the outer periphery of the piston rod (5) is sleeved with a double-lip sealing ring (9), and a dust ring (10) is arranged above the double-lip sealing ring (9), and a DH dust ring (11) is arranged above the dust ring (10).

2. The anti-leakage oil cylinder according to claim 1, characterized in that: The vertical center lines of the piston (4) and the piston rod (5) in the cylinder coincide with the vertical center line of the cylinder barrel (2), and the second partition plate (8) is fixedly connected to the cylinder cover (3).

3. The anti-leakage oil cylinder according to claim 1, characterized in that: The double-lip sealing ring (9), the dustproof ring (10), and the DH dustproof sealing ring (11) are elastic, and the inner walls of the double-lip sealing ring (9), the dustproof ring (10), and the DH dustproof sealing ring (11) are tightly fitted with the outer wall of the piston rod (5).

4. The anti-leakage oil cylinder according to claim 1, characterized in that: The industrial oil-absorbing cotton (7) is bonded to the first partition (6) and the second partition (8) by adhesive, and the double-lip sealing ring (9), the dustproof ring (10), and the DH dustproof sealing ring (11) are fixedly connected to the cylinder head (3).

5. The anti-leakage oil cylinder according to claim 1, characterized in that: The top of the cylinder cover (3) is fixedly connected to a sealing cover (12), the middle position of the outer periphery of the sealing cover (12) is fixedly connected to a fixing plate (13), a nylon dust cover (14) is provided above the fixing plate (13), the bottom of the nylon dust cover (14) is fixedly connected to a fixing ring (15), the top of the nylon dust cover (14) is fixedly connected to a clamp (16), the nylon dust cover (14) is elastic, and the fixing ring (15) is consistent in shape and size with the fixing plate (13).

6. The anti-leakage oil cylinder according to claim 5, characterized in that: A transparent rubber ring (17) is fixedly connected to the bottom of the outer periphery of the sealing cover (12), and a measuring paste (18) is provided inside the transparent rubber ring (17). A sealing rubber ring (19) is fixedly connected to the bottom end of the transparent rubber ring (17), and the sealing rubber ring (19) is connected to the inside of the measuring paste (18). The inner wall of the sealing rubber ring (19) is tightly fitted with the outer wall of the piston rod (5).

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