Hydraulic oil cylinder with external protection structure

Abstract

The utility model discloses a hydraulic oil cylinder with an external protection structure, which relates to the technical field of hydraulic oil cylinders, and comprises a hydraulic oil cylinder body, two protection mechanisms arranged on the hydraulic oil cylinder body and surrounding the periphery of the hydraulic oil cylinder body, and a hydraulic rod arranged in the hydraulic oil cylinder body, and the dustproof mechanism is connected to the two protection mechanisms, and the dustproof mechanism is connected with the hydraulic rod. Dust can be prevented from entering the hydraulic oil cylinder body through the hydraulic rod, the service life of the hydraulic oil cylinder is prolonged, heat of the hydraulic oil cylinder body can be directly conducted to the outer side for heat dissipation, the heat dissipation performance is improved, and normal work of the hydraulic oil cylinder is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and in particular to a hydraulic cylinder with an external protective structure. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating or oscillating motion. It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device and has no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. It consists of a hydraulic cylinder body and a hydraulic rod. Most hydraulic cylinders lack external protection during use, making them easily punctured by sharp objects, reducing their safety and potentially causing damage. Therefore, protective structures are installed on the outside of the hydraulic cylinder body to provide protection.

[0003] Patent CN219176690U, entitled "A Hydraulic Cylinder with an External Protective Structure," discloses a hydraulic cylinder with an external protective structure, including a left protective block. The inner wall of the left protective block has a pressure plate, and the outer wall of the pressure plate is fixedly connected to a spring. The inner wall of the spring is fixedly connected to a telescopic rod. A protective pad is fixedly connected to the outer wall of the spring. A rotating screw is fitted to the outer wall of the pressure plate, and the left protective block is threaded to the outer wall of the rotating screw. The outer wall of the protective pad is fitted to the hydraulic cylinder body. Although this patent provides external protection with left and right protective blocks, dust can enter the hydraulic cylinder through the hydraulic rod during extension and retraction, affecting its operation. Furthermore, because the heat from the hydraulic cylinder is not easily dissipated efficiently, simply having left and right protective blocks, while providing protection, hinders heat dissipation and may affect the normal operation of the hydraulic cylinder. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hydraulic cylinder with an external protective structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hydraulic cylinder with an external protective structure includes a hydraulic cylinder body, wherein a hydraulic rod is provided inside the hydraulic cylinder body, and further includes:

[0007] Two protective mechanisms are provided on the hydraulic cylinder body, and the two protective mechanisms surround the hydraulic cylinder body.

[0008] A dustproof mechanism is provided, which is connected to two protective mechanisms and is also connected to a hydraulic rod.

[0009] As a further improvement of this utility model, the protective mechanism includes a protective shell, and three first connecting bolts are provided through the upper and lower ends of the protective shell. The upper and lower ends of the hydraulic cylinder body are provided with first connecting screw holes that cooperate with the first connecting bolts, and the first connecting bolts are screwed into the first connecting screw holes.

[0010] As a further improvement of this utility model, the dustproof mechanism includes a connecting ring, an upper end of which is fixed with a telescopic bellows, and a connecting sleeve is fixed at the end of the telescopic bellows away from the connecting ring. Six second connecting bolts are provided through the upper end of the connecting ring. Each protective shell has three second connecting screw holes at its upper end that mate with the second connecting bolts. The second connecting bolts are screwed into the second connecting screw holes. Four third connecting bolts are provided through the upper end of the connecting sleeve. The hydraulic rod has four third connecting screw holes that mate with the third connecting bolts. The third connecting bolts are screwed into the third connecting screw holes.

[0011] As a further improvement of this utility model, a flexible storage bladder is fixed on the inner wall of the protective shell, and the flexible storage bladder stores heat-conducting oil inside.

[0012] As a further improvement of this utility model, the outer side wall of the protective shell is uniformly provided with heat dissipation grooves.

[0013] As a further improvement of this utility model, the telescopic corrugated pipe is made of metal.

[0014] The beneficial effects of this utility model are:

[0015] By incorporating a dustproof mechanism, the telescopic bellows can extend and retract, thus preventing dust from entering the hydraulic cylinder body through the hydraulic rod and extending the service life of the hydraulic cylinder.

[0016] By setting up a flexible storage bladder containing heat-conducting oil, and uniformly arranged heat dissipation grooves on the outer wall of the protective shell, the heat of the hydraulic cylinder body can be directly transferred to the heat-conducting oil inside the flexible storage bladder through the flexible storage bladder's contact with the surface of the hydraulic cylinder body. This heat is then further transferred to the protective shell, which directly dissipates the heat to the outside. The heat dissipation grooves effectively increase the surface area of ​​the protective shell, thereby improving its heat dissipation performance.

[0017] This invention can prevent dust from entering the hydraulic cylinder body through the hydraulic rod, thereby improving the service life of the hydraulic cylinder. It can also directly conduct the heat of the hydraulic cylinder body to the outside for heat dissipation, improving heat dissipation performance and ensuring the normal operation of the hydraulic cylinder. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a hydraulic cylinder with an external protective structure proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the dustproof mechanism of a hydraulic cylinder with an external protective structure proposed in this utility model.

[0020] Figure 3 This utility model provides a schematic diagram of the hydraulic cylinder body, hydraulic rod, first connecting screw hole, and third connecting screw hole of a hydraulic cylinder with an external protective structure.

[0021] Figure 4 This is a schematic diagram of the protective shell, first connecting bolt, second connecting screw hole, and flexible storage bladder of a hydraulic cylinder with an external protective structure proposed in this utility model.

[0022] In the figure: 1 Hydraulic cylinder body, 2 Hydraulic rod, 3 Protective shell, 4 First connecting bolt, 5 Heat dissipation groove, 6 Connecting ring, 7 Second connecting bolt, 8 Telescopic bellows, 9 Connecting sleeve, 10 Third connecting bolt, 11 First connecting screw hole, 12 Second connecting screw hole, 13 Third connecting screw hole, 14 Flexible storage bladder. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 A hydraulic cylinder with an external protective structure includes a hydraulic cylinder body 1, a hydraulic rod 2 inside the hydraulic cylinder body 1, and further includes:

[0025] Two protective mechanisms are installed on the hydraulic cylinder body 1 and surround the hydraulic cylinder body 1. The protective mechanisms include a protective shell 3. A flexible storage bladder 14 is fixed on the inner wall of the protective shell 3. The flexible storage bladder 14 is made of high-strength, high-thermal-conductivity polyethylene film. The flexible storage bladder 14 stores heat-conducting oil. By attaching the flexible storage bladder 14 to the surface of the hydraulic cylinder body 2, the heat of the hydraulic cylinder body 1 can be directly conducted to the heat-conducting oil inside the flexible storage bladder 14, and further conducted to the protective shell 3. The heat is then directly conducted to the outside for heat dissipation through the protective shell 3. The outer wall of the protective shell 3 is uniformly provided with heat dissipation grooves 5. The heat dissipation grooves 5 can effectively increase the surface area of ​​the protective shell 3, thereby improving the heat dissipation performance. Three first connecting bolts 4 are provided through the upper and lower ends of the protective shell 3. The upper and lower ends of the hydraulic cylinder body 1 are provided with first connecting screw holes 11 that cooperate with the first connecting bolts 4. The first connecting bolts 4 are screwed into the first connecting screw holes 11.

[0026] The dustproof mechanism connects the two protective mechanisms and is also connected to the hydraulic rod 2. The dustproof mechanism includes a connecting ring 6, with a telescopic bellows 8 fixed to the upper end of the connecting ring 6. The telescopic bellows 8 is made of metal. A connecting sleeve 9 is fixed to the end of the telescopic bellows 8 away from the connecting ring 6. Six second connecting bolts 7 are threaded through the upper end of the connecting ring 6. Each protective shell 3 has three second connecting screw holes 12 at its upper end that mate with the second connecting bolts 7. The second connecting bolts 7 are screwed into the second connecting screw holes 12. Four third connecting bolts 10 are threaded through the upper end of the connecting sleeve 9. The hydraulic rod 2 has four third connecting screw holes 13 that mate with the third connecting bolts 10. The third connecting bolts 10 are screwed into the third connecting screw holes 13. Because the telescopic bellows 8 can extend and retract, it can effectively prevent dust from entering the hydraulic cylinder body 1 through the hydraulic rod 2, thus improving the service life of the hydraulic cylinder.

[0027] When using this utility model, the protective shell 3 is placed around the outside of the hydraulic cylinder body 1, and the first connecting bolt 4 is tightened inside the first connecting screw hole 11. The protective shell 3 can then be removed and installed on the outside of the hydraulic cylinder body 1. Then, the connecting ring 6 is passed through the hydraulic rod 2 and tightened inside the second connecting screw hole 12 by the second connecting bolt 7 to fix the connecting ring 6 to the protective shell 3. The third connecting bolt 10 is tightened inside the third connecting screw hole 13 to fix the connecting sleeve 9 to the hydraulic rod 2.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A hydraulic cylinder with external protection structure comprising a hydraulic cylinder body (1), the inside of the hydraulic cylinder body (1) is provided with a hydraulic rod (2), characterized in that, Also include: Two protection mechanisms, provided on the hydraulic cylinder body (1), and two protection mechanisms are surrounded around the hydraulic cylinder body (1); Dustproof mechanism, the dustproof mechanism is connected to two protection mechanisms, and the dustproof mechanism is connected with the hydraulic rod (2); The protection mechanism includes a protective shell (3), the upper and lower ends of the protective shell (3) are provided with three first connecting bolts (4), the upper and lower ends of the hydraulic cylinder body (1) are provided with first connecting screw holes (11) matched with the first connecting bolts (4), and the first connecting bolts (4) are screwed in the first connecting screw holes (11). The inner side wall of the protective shell (3) is fixed with a flexible storage bag (14), the flexible storage bag (14) stores heat conducting oil in the inside; the outer side wall of the protective shell (3) is uniformly provided with a heat dissipation groove (5).

2. The hydraulic cylinder with external protection according to claim 1, characterized in that, The dustproof mechanism includes a connecting ring (6), the upper end of the connecting ring (6) is fixed with a telescopic bellows (8), the end of the telescopic bellows (8) away from the connecting ring (6) is fixed with a connecting sleeve (9), the upper end of the connecting ring (6) is provided with six second connecting bolts (7), the upper end of each protective shell (3) is provided with three second connecting screw holes (12) matched with the second connecting bolts (7), the second connecting bolts (7) are screwed in the second connecting screw holes (12), the upper end of the connecting sleeve (9) is provided with four third connecting bolts (10), the hydraulic rod (2) is provided with four third connecting screw holes (13) matched with the third connecting bolts (10), and the third connecting bolts (10) are screwed in the third connecting screw holes (13).

3. The hydraulic cylinder with external protection according to claim 2, characterized in that, The telescopic bellows (8) is made of metal.

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