Earth-moving machine dustproof telescopic boot for hydraulic cylinder
By designing a dustproof telescopic sleeve for earthmoving machinery cylinders, the telescopic sleeve and fixed structure are used to block debris in the air, solving the problem of wear and oil leakage of the cylinder output shaft in dusty environments, and achieving the effect of protecting the output shaft.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO YIOU MUNICIPAL ENGINEERING CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-31
AI Technical Summary
The output shaft of the hydraulic cylinder of earthmoving machinery is prone to forming sludge in the dusty and gravelly environment of the construction site, leading to wear and oil leakage.
A dustproof telescopic sleeve for earthmoving machinery cylinders was designed, comprising a telescopic sleeve, a wide face shield, a cover, ear plates, a sleeve clamp, bolts, and nuts. Through fixed connections and the setting of rubber gaskets, it blocks debris in the air and prevents the output shaft from contacting impurities.
It effectively prevents the output shaft from wearing due to prolonged contact with impurities in the air, thus avoiding wear and oil leakage problems in the hydraulic cylinder.
Smart Images
Figure CN224578780U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of earthmoving machinery technology, and in particular relates to a dustproof telescopic sleeve for earthmoving machinery cylinders. Background Technology
[0002] In earthmoving machinery, the hydraulic cylinder is the actuator of the hydraulic system. The output shaft surface of the hydraulic cylinder is usually exposed to the air. However, the construction site of earthmoving machinery is often accompanied by a lot of dust and gravel. Over time, the sludge that forms can easily scratch the output shaft surface and cause oil leakage in the hydraulic cylinder. To address this, a dustproof telescopic sleeve for earthmoving machinery hydraulic cylinders has been designed. This sleeve is placed on the surface of the hydraulic cylinder output shaft and is secured with a cover and clamps. It can block debris in the air and thus prevent the output shaft from wearing due to prolonged contact with impurities in the air. Utility Model Content
[0003] The purpose of this utility model is to provide a dustproof telescopic sleeve for the hydraulic cylinder of earthmoving machinery, which can block debris in the air and thus prevent the output shaft from wearing due to prolonged contact with impurities in the air, thereby solving the above-mentioned technical problems.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a dustproof telescopic sleeve for earthmoving machinery cylinders, comprising a cylinder installed on an excavator: a telescopic sleeve is fitted on the surface of the cylinder output shaft, a wide face shield is fixedly connected to the bottom of the telescopic sleeve, two covers are slidably connected to the surface of the cylinder, ear plates are fixedly connected to opposite sides of the two covers, a sleeve clamp is slidably connected to the surface of the ear plate, and screw holes are opened on the surfaces of the ear plate and the sleeve clamp, bolts are threadedly connected to the inner cavity of the screw holes, and nuts are threadedly connected to the surface of the bolts.
[0005] Preferably, the wide face shield is located inside the two ear plates, and the sleeve and ear plates are fixedly connected by bolts and nuts.
[0006] Preferably, the ear plates are fixedly connected by bolts and nuts with washers.
[0007] Preferably, the surface of the gasket is slidably connected to two rubber rings, which are located on the left and right sides of the sleeve, respectively.
[0008] Preferably, the top of the telescopic sheath is provided with a round nozzle, and the surface of the telescopic sheath is fitted with a zipper.
[0009] Preferably, the surface of the round nozzle is fitted with a clamp, and the round nozzle is fixedly connected to the surface of the cylinder output shaft by the clamp.
[0010] The beneficial effects of this utility model are: 1. This utility model fixes the two covers on the surface of the wide face shield by using clips, bolts, and nuts, thereby fixing the position of the wide face shield. The telescopic sleeve then blocks impurities in the air, thus preventing airborne debris from being blocked and avoiding wear on the output shaft due to prolonged contact with airborne impurities. 2. By using a rubber washer ring, this utility model makes the contact surface between the bolt and nut and the clamp more flexible, thus preventing damage to the surface of the clamp from the bolt and nut during rotation. Attached Figure Description
[0011] in: Figure 1 This is a front view schematic diagram of one embodiment of the present utility model; Figure 2 This is a partially enlarged front view schematic diagram of one embodiment of the present invention; Figure 3 This is a schematic diagram of a telescopic sheath according to an embodiment of the present invention; Figure 4 This is a schematic diagram showing the disassembly of a telescopic sheath according to an embodiment of the present invention.
[0012] The attached diagram lists the components represented by each number as follows: 1. Excavator, 2. Hydraulic cylinder, 3. Telescopic sleeve, 4. Wide face shield, 5. Surround cover, 6. Ear plate, 7. Clamp, 8. Screw hole, 9. Bolt, 10. Nut, 11. Washer, 12. Rubber washer ring, 13. Round nozzle, 14. Zipper, 15. Clamp. Detailed Implementation
[0013] In the following description, embodiments of the dustproof telescopic sleeve for earthmoving machinery cylinders of this utility model will be described with reference to the accompanying drawings. Example 1
[0014] Figure 1-4This invention illustrates an embodiment of a dustproof telescopic sleeve for an earthmoving machinery cylinder, comprising a cylinder 2 mounted on an excavator 1. A telescopic sleeve 3 is fitted onto the surface of the cylinder 2's output shaft. A wide face shield 4 is fixedly connected to the bottom of the telescopic sleeve 3. Two covers 5 are slidably connected to the surface of the cylinder 2. Ear plates 6 are fixedly connected to opposite sides of each of the two covers 5. Clamping sleeves 7 are slidably connected to the surface of the ear plates 6. Screw holes 8 are provided on the surfaces of both the ear plates 6 and the clamping sleeves 7. Bolts 9 are threaded into the inner cavities of the screw holes 8, and nuts 10 are threaded into the surfaces of the bolts 9. The wide face shield 4 is located inside the two ear plates 6. The sleeve clamp 7 and the ear plates 6 are fixedly connected by bolts 9 and nuts 10. A washer 11 is fixedly connected between the two ear plates 6 by bolts 9 and nuts 10. Two rubber washers 12 are slidably connected to the surface of the washer 11. The two rubber washers 12 are located on the left and right sides of the sleeve clamp 7 respectively. By setting the rubber washers 12, the contact surface between the bolts 9 and nuts 10 and the sleeve clamp 7 can be made softer, which can prevent the bolts 9 and nuts 10 from damaging the surface of the sleeve clamp 7 during rotation. Example 2
[0015] Figure 1-4 This invention illustrates an embodiment of a dustproof telescopic sleeve for an earthmoving machinery cylinder, comprising a cylinder 2 mounted on an excavator 1: a telescopic sleeve 3 is fitted onto the surface of the output shaft of the cylinder 2; a wide face shield 4 is fixedly connected to the bottom of the telescopic sleeve 3; two covers 5 are slidably connected to the surface of the cylinder 2; ear plates 6 are fixedly connected to opposite sides of the two covers 5; a sleeve clamp 7 is slidably connected to the surface of the ear plates 6; screw holes 8 are provided on the surfaces of both the ear plates 6 and the sleeve clamp 7; bolts 9 are threaded into the inner cavity of the screw holes 8; nuts 10 are threaded onto the surface of the bolts 9; a round nozzle 13 is provided at the top of the telescopic sleeve 3; a zipper 14 is installed on the surface of the telescopic sleeve 3; a clamp 15 is fitted onto the surface of the round nozzle 13; and the round nozzle 13 is fixedly connected to the surface of the output shaft of the cylinder 2 via the clamp 15.
[0016] Working principle: When using this utility model, the user places the telescopic sleeve 3 on the surface of the output shaft of the cylinder 2, then pulls the zipper 14 to close the main body of the telescopic sleeve 3, and uses the clamp 15 to initially fix the position of the telescopic sleeve 3. Then, the wide cover 4 is placed on the surface of the cylinder 2, and the two covers 5 are placed on the surface of the wide cover 4. With the cooperation of the sleeve clamp 7, bolt 9, and nut 10, the two covers 5 are fixed, thereby fixing the position of the wide cover 4. The telescopic sleeve 3 then blocks impurities in the air, thus blocking airborne debris and preventing the output shaft from wearing due to prolonged contact with impurities in the air.
[0017] In summary, the dustproof telescopic sleeve for the earthmoving machinery cylinder, by placing two covers 5 over the surface of the wide face shield 4, and cooperating with the sleeve clamp 7, bolts 9, and nuts 10, fixes the two covers 5, thereby fixing the position of the wide face shield 4. The telescopic sleeve 3 then blocks impurities in the air, thus preventing airborne debris from being blocked and avoiding wear on the output shaft due to prolonged contact with airborne impurities.
Claims
1. A dust-proof telescopic sheath for an oil cylinder of earthmoving machinery, characterized in that, Includes a hydraulic cylinder (2) for mounting an excavator (1): the surface of the output shaft of the hydraulic cylinder (2) is fitted with a telescopic sleeve (3), the bottom of the telescopic sleeve (3) is fixedly connected to a wide face shield (4), the surface of the hydraulic cylinder (2) is slidably connected to two covers (5), the opposite sides of the two covers (5) are fixedly connected to ear plates (6), the surface of the ear plates (6) is slidably connected to a sleeve clamp (7), the surfaces of the ear plates (6) and the sleeve clamp (7) are both provided with screw holes (8), the inner cavity of the screw holes (8) is threaded with bolts (9), and the surface of the bolts (9) is threaded with nuts (10).
2. The dust-proof telescopic boot for an oil cylinder of earthmoving machinery according to claim 1, characterized in that, The wide face mask (4) is located in the inner cavity of the two ear plates (6), and the sleeve (7) and ear plates (6) are fixedly connected by bolts (9) and nuts (10).
3. The dust-proof telescopic boot for an oil cylinder of earthmoving machinery according to claim 2, characterized in that, A washer (11) is fixedly connected between the two ear plates (6) by bolts (9) and nuts (10).
4. The dust-proof telescopic boot for an oil cylinder of earthmoving machinery according to claim 3, characterized in that, The surface of the gasket (11) is slidably connected to two rubber gasket rings (12), which are located on the left and right sides of the sleeve (7), respectively.
5. The dust-proof telescopic boot for an oil cylinder of earthmoving machinery according to claim 4, characterized in that, The top of the telescopic sheath (3) is provided with a round mouth (13), and a zipper (14) is installed on the surface of the telescopic sheath (3).
6. The dust-proof telescopic boot for an oil cylinder of earthmoving machinery according to claim 5, characterized in that, The surface of the round nozzle (13) is fitted with a clamp (15), and the round nozzle (13) is fixedly connected to the surface of the output shaft of the oil cylinder (2) by the clamp (15).