Hydraulic oil cylinder with protective structure

Abstract

The hydraulic oil cylinder with the protection structure comprises a cylinder body, a piston rod is arranged in the cylinder body in a sliding mode, a connecting block is fixedly installed at the end of the piston rod, a machining assembly is arranged outside the cylinder body, and the machining assembly comprises a protection assembly arranged outside the cylinder body. When the oil cylinder is used and a piston rod of the oil cylinder stretches out and draws back, the outer wall of the oil cylinder needs to be protected, when the piston rod pushes a connecting block to move, the connecting block drives a top cover to move along with the connecting block, and the top cover drives a protection pipe to move along with the top cover through a first bolt set. The sliding groove formed in the inner wall of the protection pipe slides on the outer wall of the sliding block fixedly installed on the outer wall of the cylinder body, under limitation of the sliding block, the protection pipe can slide on the outer wall of the cylinder body in a limited mode, the protection pipe moves along with the piston rod, the piston rod is not exposed outside, and the piston rod is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder with a protection structure. Background Technique

[0002] A hydraulic cylinder is an actuator that converts hydraulic energy into mechanical energy. It uses the pressure of hydraulic oil in a closed system to push the piston to perform linear reciprocating motion or swinging motion. Hydraulic cylinders are widely used in various machinery and equipment. When a hydraulic cylinder is in use, it needs to be protected to avoid damage.

[0003] For example, a hydraulic cylinder with a protection structure disclosed in Chinese Patent CN221170190U solves the problem that the outer wall of the hydraulic cylinder lacks a buffer protection structure and is prone to cylinder damage. When the hydraulic cylinder with a protection structure is impacted, the protection shell is installed to play a protective role for the cylinder and provide a slot opening function. The slot is opened to provide installation for the damper and spring. The damper and spring play a role in elastically supporting the baffle. The wear-resistant layer can improve the wear resistance of the baffle and reduce damage. When the baffle is impacted, through the elastic support of the damper and spring, the impact can be buffered. The baffle plays a protective role, and the protection shell plays a secondary protective role for the cylinder body, effectively solving the problem that the outer wall of the hydraulic cylinder lacks a buffer protection structure and is prone to cracking of the outer wall of the cylinder and oil spillage when impacted.

[0004] For this structure, although it can buffer the impact on the hydraulic cylinder, when its piston rod extends, impurities are easily adhered to its outer wall, which will affect the service life of the hydraulic cylinder over time. Therefore, we propose a hydraulic cylinder with a protection structure that can protect the outer wall of the piston rod to avoid the adhesion of impurities on its outer wall and extend the service life of the hydraulic cylinder. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hydraulic cylinder with a protection structure to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A hydraulic cylinder with a protection structure, including a cylinder body, a piston rod is slidably arranged inside the cylinder body, a connecting block is fixedly installed at the end of the piston rod, and a processing component is arranged outside the cylinder body. The processing component includes a protection component arranged outside the cylinder body, and an auxiliary component is arranged outside the protection component.

[0007] Preferably, the protection component includes a top cover fixedly installed on the outer wall of the connection block. A first bolt group is sleeved inside the top cover. A protection pipe is sleeved on the outer wall of the first bolt group. A chute is opened on the inner wall of the protection pipe. A slider is fixedly installed on the outer wall of the cylinder body. A second bolt group is sleeved at one end of the protection pipe away from the first bolt group. A cleaning ring is sleeved on the outer wall of the second bolt group.

[0008] Preferably, the auxiliary component includes a fixing plate fixedly installed on the outer wall of the cylinder body. An auxiliary rod is fixedly installed on the top surface of the fixing plate. A connecting ring is fixedly installed at the end of the auxiliary rod. A rubber ring is fixedly installed on one side of the connecting ring away from the auxiliary rod.

[0009] Preferably, the cleaning ring is made of rubber, and the cross-section of the cleaning ring is inclined. Under the restriction of the cleaning ring on the cleaning of the cylinder body, it can prevent oil stains from adhering to the outer wall of the cylinder body for a long time.

[0010] Preferably, the chute opened on the inner wall of the protection pipe is slidably arranged on the outer wall of the slider fixedly installed on the outer wall of the cylinder body. The number of the sliders is six, and they are circumferentially distributed with the central axis of the cylinder body as the center of the circle. Under the restriction of the sliders, it can prevent the protection pipe from rotating on the outer wall of the cylinder body to restrict the sliding of the protection pipe.

[0011] Preferably, the rubber ring is made of rubber buffer material, and the diameter of the rubber ring is equal to that of the top cover. Under its restriction, when the piston rod drives the top cover to move towards the fixing plate, it can perform a buffering operation under the restriction of the rubber ring made of rubber buffer material.

[0012] Preferably, the number of the auxiliary rods is four, and they are circumferentially distributed with the central axis of the cylinder body as the center of the circle. Under the support of the auxiliary rods, the overall rigidity of the oil cylinder can be enhanced.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. The hydraulic cylinder with a protective structure has a protective component as one of its parts. When the hydraulic cylinder is in use and its piston rod expands and contracts, protection work needs to be carried out on its outer wall. When the piston rod pushes the connecting block to move, the connecting block drives the top cover to move accordingly. The top cover drives the protective tube to move through the first bolt group. The sliding groove formed on the inner wall of the protective tube slides on the outer wall of the slider fixedly installed on the outer wall of the cylinder. Restricted by the slider, the protective tube can be restricted to slide on the outer wall of the cylinder. The protective tube moves along with the piston rod, so that the piston rod will not be exposed to the outside, thus protecting the piston rod. When the hydraulic cylinder is in use, impurities will adhere to the outer wall of the cylinder and need to be cleaned. When the piston rod slides into the cylinder, the piston rod drives the connecting block to move accordingly, and the connecting block drives the top cover and the protective tube to move. The protective tube drives the cleaning ring to slide through the second bolt group. The cleaning ring slides on the outer wall of the cylinder. Since the cleaning ring is arranged in an inclined plane, restricted by it, the cleaning ring can clean the outer wall of the cylinder, cleaning the impurities adhering to the outer wall of the cylinder. The operator only needs to clean the cleaning ring. This structure can prevent oil stains and impurities from adhering to the outer wall of the cylinder for a long time. Restricted by the protective tube and the cleaning ring, the piston rod and the cylinder can be protected, so as to extend the service life of the hydraulic cylinder.

[0015] 2. The hydraulic cylinder with a protective structure has an auxiliary component as one of its parts. When the piston rod drives the protective tube to move through the connecting block, the protective tube and the cleaning ring slide on the outer wall of the auxiliary rod. Restricted by the auxiliary rod, the protective tube and the cleaning ring can slide stably. Supported by the auxiliary rod, the overall rigidity of the hydraulic cylinder can be enhanced to avoid its fracture. When the piston rod slides into the cylinder, the top cover contacts the rubber ring for buffering, avoiding the direct collision of the piston rod with the inside of the cylinder. This structure can enhance the rigidity of the hydraulic cylinder through the auxiliary rod. Restricted by the rubber ring, the retracted piston rod can be buffered, extending the service life of the hydraulic cylinder. Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional external view of the structure of the present utility model.

[0017] Figure 2 It is a three-dimensional sectional view of the structure of the present utility model.

[0018] Figure 3 It is a diagram of the protective component of the structure of the present utility model.

[0019] Figure 4 It is an exploded view of the protective component of the structure of the present utility model.

[0020] Figure 5 It is a diagram of the auxiliary component of the structure of the present utility model.

[0021] Figure 6 It is an exploded view of the auxiliary component of the structure of the present utility model.

[0022] In the figure: 1. Cylinder block; 2. Piston rod; 3. Connecting block; 4. Processing assembly; 41. Protection assembly; 42. Auxiliary assembly; 411. Top cover; 412. First bolt group; 413. Protection pipe; 414. Chute; 415. Slide block; 416. Second bolt group; 417. Cleaning ring; 421. Fixed plate; 422. Auxiliary rod; 423. Connecting ring; 424. Rubber ring. Detailed implementation manners

[0023] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific implementation manners of the present utility model will now be described with reference to the accompanying drawings. Embodiment

[0024] A preferred embodiment of a hydraulic cylinder with a protection structure provided by the present utility model is as Figures 1 to 6 shown: A hydraulic cylinder with a protection structure includes a cylinder block 1;

[0025] A piston rod 2 is slidably arranged inside the cylinder block 1;

[0026] A connecting block 3 is fixedly installed at the end of the piston rod 2;

[0027] And a processing assembly 4 arranged outside the cylinder block 1. The processing assembly 4 includes a protection assembly 41 arranged outside the cylinder block 1. The protection assembly 41 includes a top cover 411 fixedly installed on the outer wall of the connecting block 3. A first bolt group 412 is sleeved inside the top cover 411. A protection pipe 413 is sleeved outside the first bolt group 412. A chute 414 is opened on the inner wall of the protection pipe 413. A slide block 415 is fixedly installed on the outer wall of the cylinder block 1. A second bolt group 416 is sleeved at one end of the protection pipe 413 away from the first bolt group 412. A cleaning ring 417 is sleeved outside the second bolt group 416.

[0028] In this embodiment, when the oil cylinder is in use, during the telescopic movement of its piston rod 2, it is necessary to protect its outer wall. When the piston rod 2 pushes the connecting block 3 to move, the connecting block 3 drives the top cover 411 to move accordingly. The top cover 411 drives the protective tube 413 to move through the first bolt group 412. The sliding groove 414 formed on the inner wall of the protective tube 413 slides on the outer wall of the slider 415 fixedly installed on the outer wall of the cylinder block 1. Under the restriction of the slider 415, the protective tube 413 can be restricted to slide on the outer wall of the cylinder block 1. The protective tube 413 moves along with the piston rod 2, so that the piston rod 2 will not be exposed to the outside, thereby protecting the piston rod 2. When the oil cylinder is in use, impurities will adhere to the outer wall of the cylinder block 1 and need to be cleaned. When the piston rod 2 slides into the cylinder block 1, the piston rod 2 drives the connecting block 3 to move accordingly. The connecting block 3 drives the top cover 411 and the protective tube 413 to move accordingly. The protective tube 413 drives the cleaning ring 417 to slide through the second bolt group 416. The cleaning ring 417 slides on the outer wall of the cylinder block 1. Since the cleaning ring 417 is arranged in an inclined plane, under its restriction, the cleaning ring 417 can clean the outer wall of the cylinder block 1 and clean the impurities adhering to the outer wall of the cylinder block 1. The operator only needs to clean the cleaning ring 417. This structure can prevent oil stains and impurities from adhering to the outer wall of the cylinder block 1 for a long time. Under the restriction of the protective tube 413 and the cleaning ring 417, the piston rod 2 and the cylinder block 1 can be protected, so as to extend the service life of the oil cylinder.

[0029] Further, the cleaning ring 417 is made of rubber material, and the cross section of the cleaning ring 417 is arranged in an inclined plane. Under the restriction of the cleaning of the cylinder block 1 by the cleaning ring 417, it can prevent oil stains from adhering to the outer wall of the cylinder block 1 for a long time.

[0030] Furthermore, the sliding groove 414 formed on the inner wall of the protective tube 413 is slidably arranged on the outer wall of the slider 415 fixedly installed on the outer wall of the cylinder block 1. The number of the sliders 415 is six, and they are distributed circumferentially with the central axis of the cylinder block 1 as the center of the circle. Under the restriction of the sliders 415, the protective tube 413 can be prevented from rotating on the outer wall of the cylinder block 1, so as to restrict the sliding of the protective tube 413. Embodiment

[0031] On the basis of Embodiment 1, a preferred embodiment of a hydraulic cylinder with a protective structure provided by the present utility model is as Figures 1 to 6 shown: The auxiliary component 42 includes a fixing plate 421 fixedly installed on the outer wall of the cylinder block 1. The top surface of the fixing plate 421 is fixedly installed with an auxiliary rod 422. The end of the auxiliary rod 422 is fixedly installed with a connecting ring 423. A rubber ring 424 is fixedly installed on the side of the connecting ring 423 away from the auxiliary rod 422.

[0032] In this embodiment, when the piston rod 2 drives the protective tube 413 to move accordingly through the connecting block 3, the protective tube 413 and the cleaning ring 417 slide on the outer wall of the auxiliary rod 422. Under the restriction of the auxiliary rod 422, the protective tube 413 and the cleaning ring 417 can slide stably. Under the support of the auxiliary rod 422, the overall rigidity of the oil cylinder can be enhanced to avoid its fracture. When the piston rod 2 slides into the cylinder block 1, the top cover 411 contacts the rubber ring 424 for buffering to avoid the direct collision of the piston rod 2 with the inside of the cylinder block 1. This structure can enhance the rigidity of the oil cylinder through the auxiliary rod 422. Under the restriction of the rubber ring 424, the retracted piston rod 2 can be buffered, prolonging the service life of the oil cylinder.

[0033] Furthermore, the rubber ring 424 is made of rubber buffer material. The diameter of the rubber ring 424 is equal to that of the top cover 411. Under its restriction, when the piston rod 2 drives the top cover 411 to move towards the fixed plate 421, buffering work can be carried out under the restriction of the rubber ring 424 made of rubber buffer material.

[0034] In addition, there are four auxiliary rods 422, which are circumferentially distributed with the center axis of the cylinder block 1 as the center of the circle. Under the support of the auxiliary rods 422, the overall rigidity of the oil cylinder can be enhanced.

[0035] The above is only the schematic specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present utility model shall fall within the scope of protection of the present utility model. Moreover, it should be noted that the components of the present utility model are not limited to the above overall application. Each technical feature described in the specification of the present utility model can be selected and used alone according to actual needs or selected and combined in multiple ways. Therefore, the present utility model should reasonably cover other combinations and specific applications related to the utility model points of this case.

Claims

1. A hydraulic cylinder with a protective structure, comprising a cylinder body (1); A piston rod (2) is slidably arranged inside the cylinder body (1); A connecting block (3) is fixedly mounted on the end of the piston rod (2); and a processing component (4) arranged outside the cylinder body (1), characterized in that: The processing assembly (4) comprises a protection assembly (41) arranged outside the cylinder body (1), and an auxiliary assembly (42) is arranged outside the protection assembly (41); The protection assembly (41) comprises a top cover (411) fixedly mounted on the outer wall of the connection block (3); a first bolt group (412) is sleeved inside the top cover (411); a protection tube (413) is sleeved on the outer wall of the first bolt group (412); a slide groove (414) is provided on the inner wall of the protection tube (413); a slider (415) is fixedly mounted on the outer wall of the cylinder body (1); a second bolt group (416) is sleeved on one end of the protection tube (413) away from the first bolt group (412); and a cleaning ring (417) is sleeved on the outer wall of the second bolt group (416).

2. The hydraulic cylinder with a protective structure according to claim 1, characterized in that: The auxiliary component (42) comprises a fixing plate (421) fixedly mounted on the outer wall of the cylinder body (1); an auxiliary rod (422) is fixedly mounted on the top surface of the fixing plate (421); a connecting ring (423) is fixedly mounted on the end of the auxiliary rod (422); and a rubber ring (424) is fixedly mounted on the side of the connecting ring (423) away from the auxiliary rod (422).

3. The hydraulic cylinder with a protective structure according to claim 2, characterized in that: The cleaning ring (417) is made of rubber, and the cross section of the cleaning ring (417) is arranged in an inclined plane.

4. The hydraulic cylinder with a protective structure according to claim 2, characterized in that: The slide groove (414) provided on the inner wall of the protection tube (413) is slidably arranged on the outer wall of a slider (415) fixedly mounted on the outer wall of the cylinder body (1), and the sliders (415) are six in number and are distributed around the circumference of the central axis of the cylinder body (1).

5. The hydraulic cylinder with a protective structure according to claim 3, characterized in that: The rubber ring (424) is made of a rubber buffer material, and the diameter of the rubber ring (424) is equal to that of the top cover (411).

6. The hydraulic cylinder with a protective structure according to claim 3, characterized in that: The auxiliary rods (422) are four in number and are distributed around the circumference of the central axis of the cylinder body (1).

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