Piston assembly of hydraulic structure

Abstract

The utility model discloses a hydraulic structure piston assembly which comprises a cylinder body and a pressure relief assembly, and the pressure relief assembly is arranged in the cylinder body. The pressure relief assembly comprises a cylinder body, a connecting pipe and a box body; the cylinder body is fixedly connected in the cylinder body, a ball valve is movably arranged in the cylinder body, and a spring is fixedly connected between the ball valve and the inner bottom of the cylinder body; the connecting pipe is connected to the outer side of the barrel in a penetrating manner; the box body is fixedly connected to one end of the connecting pipe, a rotating plate is rotationally connected into the box body, and a torsional spring is arranged between the rotating plate and the rotating joint of the box body; the number of the pressure relief assemblies is multiple. According to the pressure relief plug, pressure relief can be carried out by arranging the pressure relief assembly when internal overpressure occurs, cooling liquid is input into the circulating cooling pipe for circulation through the external connecting pipe by arranging the circulating cooling pipe and the heat dissipation barrel, cooling heat dissipation is carried out on the heat dissipation barrel, namely cooling heat dissipation is carried out on operation of the plug body, and heating caused by long-time operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pressure, in particular to a hydraulic structure piston assembly. Background Art

[0002] Overheating of the hydraulic piston can lead to reduced oil viscosity, decreased system efficiency, aging of rubber components, and accelerated oil oxidation, thus reducing operating accuracy and shortening system life. Overpressure can cause pipeline leaks, component damage, and even system crashes, seriously impacting system stability and safety. Therefore, regular inspection and maintenance of the hydraulic system, controlling oil temperature, and avoiding overpressure are key to ensuring proper operation.

[0003] The utility model with the authorization publication number CN217873541U provides a wear-resistant piston assembly for a hydraulic cylinder, which belongs to the field of "hydraulic" technology, and the protected claim: "including a cylinder body and a piston rod, the bottom end of the piston rod is movably connected to the inside of the cylinder body, and the inner wall of the cylinder body is fixedly connected with connecting strips on all sides, and the opposite sides of the connecting strips are fixedly connected with a group of upper and lower symmetrical wear-resistant mechanisms, and the wear-resistant mechanisms are all fixedly connected to the lower outer wall of the piston rod, and rubber airbags are provided on the opposite sides of the wear-resistant mechanisms, and a circular groove is provided at the inner bottom end of the cylinder body. The utility model uses the wear-resistant mechanism set up to push the piston rod by stamping inside the cylinder body. At this time, the inside of the guide wheel groove rolls, and the top of the sealing ring and the wear-resistant ring slide and rise with the piston rod, which is beneficial to ensure the sealing of the cylinder body while ensuring the smooth sliding of the wear-resistant mechanism when the piston rod is lifted or lowered, thereby reducing the friction between it and the inside of the cylinder body."

[0004] In this device, although friction is reduced, there are still problems such as the piston heating up after long-term operation and system overpressure. For this reason, we propose a hydraulic structure piston assembly. Utility Model Content

[0005] The purpose of the present utility model is to provide a hydraulic structure piston assembly to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A hydraulic structure piston assembly comprises a cylinder body and a pressure relief assembly, wherein the pressure relief assembly is arranged in the cylinder body;

[0008] The pressure relief assembly includes a cylinder, a connecting pipe and a box body; the cylinder is fixedly connected to the cylinder body, a ball valve is movably provided in the cylinder body, and a spring is fixedly connected between the ball valve and the inner bottom of the cylinder body; the connecting pipe is connected to the outside of the cylinder body; the box body is fixedly connected to one end of the connecting pipe, a rotating plate is rotatably connected to the box body, and a torsion spring is provided between the rotating connection between the rotating plate and the box body.

[0009] Preferably, the number of the pressure relief components is set to multiple groups, and the multiple groups are all arranged around the central axis of the cylinder.

[0010] Preferably, a heat dissipation tube is fixedly connected to the cylinder body, a circulating cooling pipe is wound around the outside of the heat dissipation tube, and two ports of the circulating cooling pipe extend out of the cylinder body and are fixedly connected to an external pipe.

[0011] Preferably, a plug body is slidably connected in the heat dissipation cylinder, and one end of the plug body is fixedly connected to a rod body.

[0012] Preferably, one end of the cylinder body is fixedly connected to a mounting portion, a plurality of bolts are threadedly inserted between the mounting portion and the cylinder body, and the outer end of the rod body extends out of the mounting portion.

[0013] Preferably: the cylinder is fixedly connected in the heat dissipation cylinder, and its opening is connected to the inner side of the heat dissipation cylinder. The connecting pipe is fixedly connected in the heat dissipation cylinder, one end of the connecting pipe extends into the cylinder body and is fixedly connected to the box body. The box body is fixedly connected in the cylinder body, and the opening of the box body passes through the outside of the cylinder body.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By setting up a pressure relief component, when the internal pressure of the device is too high, the ball valve will be pushed to move. The movement of the ball valve will vacate the connecting channel between the connecting pipe and the cylinder body, and then the pressure will enter the box body along the connecting pipe, and then push the rotating plate to rotate, and discharge the device through the gap between the rotating plate and the box body. After the pressure returns to normal, the spring will drive the ball valve back to its position. In summary, this device can relieve pressure when there is internal overpressure.

[0016] By setting up a circulating cooling pipe and a heat dissipation tube, the coolant is input into the circulating cooling pipe through an external pipe for circulation, cooling and dissipating the heat dissipation tube, that is, cooling and dissipating the operation of the plug, avoiding heat generation during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is an exploded view of the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the pressure relief component in the utility model;

[0020] Figure 4 This utility model Figure 3 External schematic diagram of .

[0021] In the figure: 1. Cylinder body; 2. Pressure relief assembly; 201. Cylinder body; 202. Ball valve; 203. Spring; 204. Connecting pipe; 205. Box body; 206. Rotating plate; 207. Torsion spring; 3. Heat dissipation tube; 301. Circulating cooling pipe; 302. External pipe; 4. Plug body; 401. Rod body; 5. Mounting part; 501. Bolt. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1

[0024] like Figure 1-4 As shown, in this embodiment, a hydraulic structure piston assembly includes a cylinder body 1 and a pressure relief assembly 2, wherein the pressure relief assembly 2 is arranged in the cylinder body 1;

[0025] The pressure relief assembly 2 includes a cylinder 201, a connecting pipe 204 and a box body 205; the cylinder 201 is fixedly connected to the cylinder body 1, and a ball valve 202 is movably provided in the cylinder 201, and a spring 203 is fixedly connected between the ball valve 202 and the inner bottom of the cylinder 201; the connecting pipe 204 is connected to the outside of the cylinder 201; the box body 205 is fixedly connected to one end of the connecting pipe 204, and a rotating plate 206 is rotatably connected in the box body 205, and a torsion spring 207 is provided between the rotating connection between the rotating plate 206 and the box body 205.

[0026] During specific implementation, first, when the internal pressure of the device is too high, it will push the ball valve 202 to move. The movement of the ball valve 202 will vacate the connecting channel between the connecting pipe 204 and the cylinder 201, and then the pressure will enter the box body 205 along the connecting pipe 204, and then push the rotating plate 206 to rotate, and discharge the device through the gap vacated between the rotating plate 206 and the box body 205. After the pressure is normal, the spring 203 will drive the ball valve 202 to return to its position, and at the same time, the rotating plate 206 will also return to its position through the action of the torsion spring 207. The elastic force of the spring 203 is sufficient to cope with normal pressure, thereby avoiding opening the pressure relief component 2 under normal pressure and causing damage.

[0027] Furthermore, a heat dissipation tube 3 is fixedly connected to the cylinder body 1, and a circulating cooling pipe 301 is wound around the outside of the heat dissipation tube 3. Both ends of the circulating cooling pipe 301 extend out of the cylinder body 1 and are fixedly connected to an external pipe 302. The coolant is input into the circulating cooling pipe 301 through the external pipe 302 for circulation, so as to cool the heat dissipation tube 3, that is, to cool the operation of the plug body 4. It should be noted that the cooling temperature will not freeze the internal hydraulic liquid or gas.

[0028] Furthermore, one end of the cylinder body 1 is fixedly connected to a mounting portion 5, and a plurality of bolts 501 are threadedly inserted between the mounting portion 5 and the cylinder body 1. The outer end of the rod body 401 extends out of the mounting portion 5. By providing the mounting portion 5, the device can be conveniently disassembled and assembled.

[0029] Furthermore, the cylinder 201 is fixedly connected in the heat dissipation cylinder 3, and its opening is connected to the inner side of the heat dissipation cylinder 3. The connecting pipe 204 is fixedly connected in the heat dissipation cylinder 3. One end of the connecting pipe 204 extends into the cylinder body 1 and is fixedly connected to the box body 205. The box body 205 is fixedly connected in the cylinder body 1, and the opening of the box body 205 passes through the outside of the cylinder body 1. It should be noted that the opening of the cylinder body 201 is set to be closed to prevent the ball valve 202 from rolling out.

[0030] Working principle: First, when the internal pressure of the device is too high, it will push the ball valve 202 to move. The movement of the ball valve 202 will vacate the connecting channel between the connecting pipe 204 and the cylinder 201, and then the pressure will enter the box body 205 along the connecting pipe 204, and then push the rotating plate 206 to rotate, and discharge the device through the gap between the rotating plate 206 and the box body 205. After the pressure is normal, the spring 203 will drive the ball valve 202 to return, and the rotating plate 206 will also return to its position through the action of the torsion spring 207. The elastic force of the spring 203 is sufficient to cope with normal pressure, and avoid opening the pressure relief component 2 under normal pressure and causing damage. In addition, the coolant is input into the circulating cooling pipe 301 through the external pipe 302 for circulation, cooling the heat dissipation cylinder 3, that is, cooling the operation of the plug body 4.

[0031] 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.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hydraulic structure piston assembly, comprising a cylinder body (1) and a pressure relief assembly (2), characterized in that: The pressure relief assembly (2) is arranged in the cylinder body (1); The pressure relief assembly (2) comprises a cylinder (201), a connecting pipe (204) and a box body (205); the cylinder (201) is fixedly connected to the cylinder body (1); a ball valve (202) is movably provided in the cylinder (201); a spring (203) is fixedly connected between the ball valve (202) and the inner bottom of the cylinder (201); the connecting pipe (204) is connected to the outside of the cylinder (201); the box body (205) is fixedly connected to one end of the connecting pipe (204); a rotating plate (206) is rotatably connected in the box body (205); a torsion spring (207) is provided between the rotating connection between the rotating plate (206) and the box body (205).

2. A hydraulic structural piston assembly according to claim 1, characterized in that: The number of the pressure relief components (2) is set to multiple groups, and the multiple groups are all arranged around the central axis of the cylinder body (1).

3. The hydraulic structure piston assembly according to claim 1, characterized in that: A heat dissipation tube (3) is fixedly connected to the cylinder body (1), a circulating cooling pipe (301) is wound around the outside of the heat dissipation tube (3), and both ends of the circulating cooling pipe (301) extend out of the cylinder body (1) and are fixedly connected to an external pipe (302).

4. A hydraulic structural piston assembly according to claim 3, characterized in that: A plug body (4) is slidably connected inside the heat dissipation cylinder (3), and one end of the plug body (4) is fixedly connected to a rod body (401).

5. The hydraulic structure piston assembly according to claim 4, characterized in that: One end of the cylinder body (1) is fixedly connected to a mounting portion (5), a plurality of bolts (501) are threadedly inserted between the mounting portion (5) and the cylinder body (1), and the outer end of the rod body (401) extends out of the mounting portion (5).

6. The hydraulic structure piston assembly according to claim 1, characterized in that: The cylinder (201) is fixedly connected in the heat dissipation cylinder (3), and its opening is connected to the inner side of the heat dissipation cylinder (3). The connecting pipe (204) is fixedly connected in the heat dissipation cylinder (3). One end of the connecting pipe (204) extends into the cylinder (1) and is fixedly connected to the box body (205). The box body (205) is fixedly connected in the cylinder (1), and the opening of the box body (205) is connected to the outer side of the cylinder (1).

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