A hydraulic cylinder with all-round safety protection

Abstract

This utility model discloses a comprehensive safety protection hydraulic cylinder, relating to the field of hydraulic technology. It includes a cylinder body, an explosion-proof cylinder sleeved on the outer wall of the body, a cap threaded to the upper end of the explosion-proof cylinder for sealing, and a support component installed on the inner wall of the explosion-proof cylinder for supporting and limiting the main body. The support component breaks when the main body bursts. The explosion-proof cylinder, sleeved on the outer wall of the main body and sealed by the cap, provides comprehensive protection for the main body. The liquid inside the explosion-proof cylinder cools the main body and buffers the impact of the burst. The support component positions and installs the main body; when the main body bursts, the support component breaks, preventing the impact from being transmitted to the explosion-proof cylinder. This solves the problem that existing cylinder bursts can easily lead to equipment damage and personal injury.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic technology, specifically to a hydraulic cylinder with all-round safety protection. Background Technology

[0002] A hydraulic cylinder is an actuator widely used in hydraulic systems, primarily converting hydraulic energy into mechanical energy. It mainly utilizes the pressure of hydraulic oil to cause a piston to move linearly within the cylinder, generating thrust or pull force to perform various mechanical operations. The basic structure of a hydraulic cylinder includes a cylinder body, piston, piston rod, sealing devices, and end caps. The cylinder body is typically made of high-strength materials to withstand the high pressure generated by the internal hydraulic oil; the piston slides within the cylinder, and sealing devices prevent hydraulic oil leakage, ensuring system efficiency and safety.

[0003] The working principle of a hydraulic cylinder is relatively simple. When a hydraulic pump delivers hydraulic oil to one side of the cylinder, the pressure inside the cylinder increases, pushing the piston to move, thereby lifting or moving the mechanical load. By controlling the inflow and outflow of hydraulic oil, the position and speed of the piston can be precisely adjusted, which makes hydraulic cylinders widely used in heavy machinery such as construction machinery, mining equipment, and metallurgical equipment.

[0004] Hydraulic cylinders are prone to rupture due to excessive internal pressure or material failure when exposed to factors such as overpressure, material defects, improper design, corrosion, abnormal temperature, improper operation, and seal failure. This phenomenon is called cylinder explosion, a serious malfunction that can easily lead to equipment damage and personal injury. To prevent cylinder explosion from causing equipment damage and personal injury, a comprehensive safety protection hydraulic cylinder is provided. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulic cylinder with all-round safety protection to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a holistic safety protection hydraulic cylinder, comprising the cylinder body;

[0007] An explosion-proof cylinder is fitted onto the outer wall of the main body. The upper end of the explosion-proof cylinder is threaded with a cap for sealing the explosion-proof cylinder. The interior of the explosion-proof cylinder is filled with a liquid for buffering and cooling.

[0008] The support component, installed on the inner wall of the explosion-proof cylinder, is used to support and limit the main body. The support component will break when the main body explodes.

[0009] As a preferred technical solution of this utility model, the lower end of the main body extends through the lower end of the explosion-proof cylinder, and a sealing ring is provided at the connection between the lower end of the main body and the explosion-proof cylinder.

[0010] As a preferred embodiment of this utility model, the cover is composed of two semi-circular covers, and the outer side wall of the cover is also fitted with a sealing ring.

[0011] As a preferred technical solution of this utility model, the outer wall of the explosion-proof cylinder is connected to two water pipes, which are used for liquid inlet and liquid outlet respectively.

[0012] As a preferred technical solution of this utility model, the outer wall of the explosion-proof cylinder is also connected to two limiting tubes, which are respectively aligned with the oil inlet pipe and the oil outlet pipe of the main body.

[0013] As a preferred technical solution of this utility model, a connecting pipe is movably installed inside the limiting tube, and the two connecting pipes are respectively threadedly connected to the oil inlet pipe and the oil outlet pipe of the main body.

[0014] As a preferred technical solution of this utility model, the inner wall of the explosion-proof cylinder is fixedly installed with a slide rail for limiting the installation of the main body.

[0015] As a preferred technical solution of this utility model, the support member includes a connecting strip, a limiting strip and a support plate. The connecting strip is fixedly connected to the inner wall of the explosion-proof cylinder. The support plate has a V-shaped structure, and two symmetrical support plates form a set of connecting members. Multiple sets of connecting members are connected between the connecting strip and the limiting strip.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention provides comprehensive protection for the main body by fitting an explosion-proof cylinder around its outer wall and sealing the cylinder with a cap. The liquid inside the explosion-proof cylinder cools the main body and cushions the impact of the explosion when the main body bursts. The support component positions and installs the main body; when the main body bursts, the support component breaks, preventing the impact from being transmitted to the explosion-proof cylinder. This solves the problem that existing hydraulic cylinder explosions can easily lead to equipment damage and personal injury. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the hydraulic cylinder according to an embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the explosion-proof cylinder according to an embodiment of the present utility model;

[0020] Figure 3 This is a top view of the explosion-proof cylinder according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the support structure according to an embodiment of the present utility model.

[0022] In the diagram: 1. Main body; 2. Explosion-proof cylinder; 21. Water pipe; 22. Limiting pipe; 23. Explosion-proof ring; 24. Slide rail; 3. Cover; 4. Connecting pipe; 5. Support component; 51. Connecting strip; 52. Limiting strip; 53. Support plate. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This embodiment provides a fully protective hydraulic cylinder, including a cylinder body 1. The cylinder body 1 is a hydraulic cylinder with a reference model number of JB100X350. The outer wall of the cylinder body 1 is provided with an oil inlet pipe and an oil outlet pipe. In order to prevent the cylinder body 1 from bursting due to excessive internal pressure or material failure, which could lead to damage to surrounding equipment or personal injury, an explosion-proof cylinder 2 is sleeved on the outer wall of the cylinder body 1.

[0025] like Figure 1 and Figure 2 As shown, the lower end of the main body 1 extends through and beyond the lower end of the explosion-proof cylinder 2. A sealing ring is fitted onto the lower end of the main body 1 to seal the connection between the main body 1 and the explosion-proof cylinder 2. A cap 3 is threadedly connected to the upper opening of the explosion-proof cylinder 2. The cap 3 consists of two semi-circular caps connected in a sealing manner, and a sealing ring is also fitted onto the lower outer wall of the assembled cap 3 to seal the explosion-proof cylinder 2 and the cap 3. The cap 3 is fitted onto the output rod of the main body 1, and the sealing ring can also fill the gap between the cap 3 and the main body 1 to achieve a sealing effect.

[0026] like Figure 1 and Figure 3 As shown, the outer wall of the explosion-proof cylinder 2 is connected to two water pipes 21, which are connected to a pump and are used for liquid inlet and liquid outlet respectively. The upper water pipe 21 injects liquid into the explosion-proof cylinder 2. The liquid is set as coolant and cools the main body 1 through the liquid. The lower water pipe 21 is used to discharge the liquid in the explosion-proof cylinder 2, so that the liquid in the explosion-proof cylinder 2 circulates and achieves the effect of continuous cooling.

[0027] When the main body 1 bursts, the liquid inside the explosion-proof cylinder 2 can absorb some of the impact kinetic energy. The flow characteristics of the liquid cause it to flow rapidly and change shape when the main body 1 bursts, thereby dispersing the impact force and reducing the direct impact on the explosion-proof cylinder 2, thus achieving a buffering effect.

[0028] like Figure 2 and Figure 3 As shown, the inner wall of the explosion-proof cylinder 2 is equipped with a slide rail 24. The oil inlet and outlet pipes of the main body 1 are slidably installed in the slide rail 24, and the slide rail 24 positions the oil inlet and outlet pipes of the main body 1. Two limiting pipes 22 are also connected to the outer wall of the explosion-proof cylinder 2. After the main body 1 is installed, the oil inlet and outlet pipes of the main body 1 are aligned with the two limiting pipes 22 respectively. A connecting pipe 4 is movably installed inside the limiting pipe 22, and a sealing ring for sealing the gap between the connecting pipe 4 and the limiting pipe 22 is also fitted onto the outer wall of the connecting pipe 4. In use, sliding the connecting pipe 4 allows the two connecting pipes 4 to contact the oil inlet and outlet pipes of the main body 1 respectively. Rotating the connecting pipe 4 allows the two connecting pipes 4 to be threadedly connected to the oil inlet and outlet pipes of the main body 1 respectively. At this time, the oil pump can inject and discharge oil into the main body 1 by connecting to the connecting pipes 4.

[0029] The main body 1 is prone to shaking inside the explosion-proof cylinder 2 during operation. To stabilize the main body 1 and position its installation, multiple support components 5 are installed inside the explosion-proof cylinder 2. For example... Figure 3 and Figure 4 As shown, the support member 5 includes a connecting strip 51, a limiting strip 52, and a support plate 53. The connecting strip 51 is fixedly connected to the inner wall of the explosion-proof cylinder 2. The support plate 53 has a V-shaped structure, and two symmetrical support plates 53 form a set of connecting members. Multiple sets of connecting members are connected between the connecting strip 51 and the limiting strip 52. Multiple support members 5 are evenly arranged in a ring array around the main body 1. The limiting strip 52 fits against the outer wall of the main body 1. The main body 1 is supported and positioned by multiple support members 5.

[0030] like Figure 3 As shown, notches are provided in the middle part of the support plate 53 and at the connection points between the support plate 53 and the connecting strip 51 and the limiting strip 52. After the main body 1 explodes, the main body 1 will generate an outward impact force, which will cause the support plate 53 to break, preventing the impact force generated by the main body 1 from being transmitted to the explosion-proof cylinder 2 through the support member 5 and damaging the explosion-proof cylinder 2. Figure 1 and Figure 3 As shown, multiple explosion-proof rings 23 are fixedly sleeved on the outer wall of the explosion-proof cylinder 2. The explosion-proof rings 23 are used to increase the structural strength of the explosion-proof cylinder 2.

[0031] Compared to existing hydraulic cylinders (body 1), the explosion-proof cylinder 2 is located on the outer wall of body 1 and filled with liquid to enhance safety and protection. In the event of a conventional cylinder explosion, the sudden release of internal pressure generates a tremendous impact force, which can severely damage surrounding equipment and pose a fatal threat to operators. The explosion-proof cylinder 2 addresses this problem precisely. When body 1 explodes, the liquid inside the explosion-proof cylinder 2 rapidly absorbs and disperses the shock wave generated by the explosion. The incompressibility and kinetic energy absorption properties of the liquid allow the explosion-proof cylinder 2 to effectively buffer the impact force, preventing it from being directly transmitted to the surrounding environment. This design not only reduces damage to surrounding equipment but also lowers the risk of personnel injury.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A full-safety protection type hydraulic cylinder, characterized in that, include: The main body of the hydraulic cylinder (1); An explosion-proof cylinder (2) is fitted onto the outer wall of the main body (1). The upper end of the explosion-proof cylinder (2) is threaded with a cap (3) for sealing the explosion-proof cylinder (2). The interior of the explosion-proof cylinder (2) is filled with a liquid for buffering and cooling. The support member (5) is installed on the inner wall of the explosion-proof cylinder (2) to support and limit the main body (1). The support member (5) will break when the main body (1) explodes.

2. A full-safety protection type hydraulic cylinder according to claim 1, characterized in that: The lower end of the main body (1) extends through the lower end of the explosion-proof cylinder (2), and a sealing ring is provided at the connection between the lower end of the main body (1) and the explosion-proof cylinder (2).

3. The omnibearing safety shield hydraulic cylinder of claim 1, wherein: The cover (3) is composed of two semi-circular covers, and the outer side wall of the cover (3) is also fitted with a sealing ring.

4. The omnibearing safety shield hydraulic cylinder of claim 2, wherein: The outer wall of the explosion-proof cylinder (2) is connected to two water pipes (21), which are used for liquid inlet and liquid outlet respectively.

5. A full safety protection type hydraulic cylinder according to claim 4, characterized in that: The outer wall of the explosion-proof cylinder (2) is also connected to two limiting tubes (22), which are respectively aligned with the oil inlet pipe and the oil outlet pipe of the main body (1).

6. A hydraulic cylinder with all-around safety protection according to claim 5, characterized in that: The limiting tube (22) is internally fitted with a connecting tube (4), and the two connecting tubes (4) are threadedly connected to the oil inlet and oil outlet of the main body (1), respectively.

7. A full safety protection type hydraulic cylinder according to claim 6, characterized in that: The inner wall of the explosion-proof cylinder (2) is fixedly installed with a slide rail (24) for limiting the installation of the main body (1).

8. A full safety protection type hydraulic cylinder according to claim 7, characterized in that: The support member (5) includes a connecting strip (51), a limiting strip (52), and a support plate (53). The connecting strip (51) is fixedly connected to the inner wall of the explosion-proof cylinder (2). The support plate (53) has a V-shaped structure, and two symmetrical support plates (53) form a set of connecting members. Multiple sets of connecting members are connected between the connecting strip (51) and the limiting strip (52).

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