A hydraulic cylinder with a built-in proportional flow control valve

Abstract

This utility model relates to the field of hydraulic cylinder technology and discloses a hydraulic cylinder with a built-in proportional flow control valve. It includes a hydraulic cylinder barrel and a control component disposed on the side of the hydraulic cylinder barrel. The control component includes a mounting mechanism disposed on the side of the hydraulic cylinder barrel. An auxiliary mechanism is disposed on the side of the hydraulic cylinder barrel and connected to the mounting mechanism. The mounting mechanism includes an oil pipe and a connecting pipe. The oil pipe is fixedly installed on the side wall of the hydraulic cylinder barrel, and the connecting pipe is fixedly installed on the side wall of the oil pipe. This utility model solves the problem that existing hydraulic fluid must travel a long pipeline from the control valve to the hydraulic cylinder chamber, resulting in large pressure loss and response delay. Therefore, the flow control valve requires regular maintenance and upkeep, which is time-consuming and increases the workload of operators.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder with a built-in proportional flow control valve. Background Technology

[0002] As the core actuator of a hydraulic system, the precise control of the movement speed of a hydraulic cylinder relies on a flow regulation device. In traditional solutions, the proportional flow control valve is usually externally mounted in the hydraulic pipeline and connected to the oil inlet of the hydraulic cylinder through the pipeline to achieve proportional flow control.

[0003] The existing hydraulic fluid has to go through a long pipeline from the control valve to the hydraulic cylinder chamber, resulting in large pressure loss and response delay. Therefore, the flow control valve needs to be maintained and repaired regularly. However, the process of repairing and replacing the flow control valve requires a lot of time and increases the workload of the operators. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic cylinder with a built-in proportional flow control valve, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder with a built-in proportional flow control valve, comprising a hydraulic cylinder barrel;

[0006] A control component is located on the side of the hydraulic cylinder.

[0007] The control component includes a mounting mechanism located on the side of the hydraulic cylinder.

[0008] An auxiliary mechanism is provided on the side of the hydraulic cylinder, and the auxiliary mechanism is connected to the mounting mechanism.

[0009] Preferably, a hydraulic cylinder body is fixedly installed on the side wall of the hydraulic cylinder, and a piston rod is slidably installed on the inner wall of the hydraulic cylinder.

[0010] Preferably, the auxiliary mechanism includes an oil pipe and a connecting pipe. The oil pipe is fixedly installed on the side wall of the hydraulic cylinder. The connecting pipe is fixedly installed on the side wall of the oil pipe. The connecting pipe is fixedly installed on the side wall of the hydraulic cylinder. A flow control valve is installed at one end of the connecting pipe. The oil pipe is fixedly installed on the side wall of the flow control valve.

[0011] Preferably, the inner wall of the first connecting pipe is connected to the interior of the first oil pipe, and the inner wall of the first oil pipe is connected to the interior of the hydraulic cylinder.

[0012] Preferably, the inner wall of the second connecting pipe is connected to the interior of the hydraulic cylinder, the inner wall of the second connecting pipe is connected to the interior of the flow control valve, and the inner wall of the flow control valve is connected to the interior of the second oil pipe.

[0013] Preferably, the installation mechanism includes a sealing gasket, one side of which contacts the side wall of the connecting pipe II, and the other side of which contacts the side wall of the flow control valve. An upper arc-shaped snap-fit ​​plate is installed on the side wall of the sealing gasket, and a lower arc-shaped snap-fit ​​plate is disposed at the bottom of the upper arc-shaped snap-fit ​​plate. A positioning bolt is rotatably installed on the inner wall of the lower arc-shaped snap-fit ​​plate, and a nut is threaded onto the side wall of the positioning bolt.

[0014] Preferably, the inner wall of the upper arc-shaped snap-fit ​​plate is in sealed contact with one end of the flow control valve, and the inner wall of the upper arc-shaped snap-fit ​​plate is in sealed contact with the side wall of the connecting pipe II.

[0015] This invention provides a hydraulic cylinder with a built-in proportional flow control valve. It has the following advantages:

[0016] (1) This utility model allows operators to install a flow control valve on the side wall of the hydraulic cylinder. A sealing gasket is installed in the middle of the side wall of the flow control valve and the connecting pipe 2. Then, the upper arc-shaped snap-fit ​​plate is snapped onto the side wall of the flow control valve and the connecting pipe 2. The position of the positioning bolt can then be rotated and used with the nut to quickly install the flow control valve. The flow control valve can be disassembled and repaired according to the needs of the operator. This solves the problem that the existing oil needs to go through a long pipeline from the control valve to the hydraulic cylinder chamber, resulting in large pressure loss and response delay. Therefore, the flow control valve needs to be regularly maintained and repaired. However, the operator needs to spend a lot of time and increase the workload of the operator during the maintenance and replacement of the flow control valve.

[0017] (2) This utility model can connect to the external oil circuit through the second oil pipe and the first connecting pipe, which can improve the movement of the piston rod inside the hydraulic cylinder. A flow control valve is provided on the side wall of the second connecting pipe, which can effectively control the amount of oil in the circuit. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the auxiliary mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the unfolded state of this utility model;

[0021] Figure 4 This utility model Figure 3 A magnified view of part A in the image.

[0022] In the diagram: 1. Hydraulic cylinder barrel; 2. Hydraulic cylinder body; 3. Piston rod; 4. Control component; 41. Mounting mechanism; 411. Sealing gasket; 412. Upper arc-shaped snap-fit ​​plate; 413. Positioning bolt; 414. Nut; 415. Lower arc-shaped snap-fit ​​plate; 42. Auxiliary mechanism; 421. Connecting pipe one; 422. Oil pipe one; 423. Connecting pipe two; 424. Oil pipe two; 425. Flow control valve. 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] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0027] Example 1: A preferred embodiment of the hydraulic cylinder with a built-in proportional flow control valve provided by this utility model. Figures 1 to 4 As shown: A hydraulic cylinder with a built-in proportional flow control valve includes a hydraulic cylinder barrel 1, a hydraulic cylinder body 2 fixedly installed on the side wall of the hydraulic cylinder barrel 1, and a piston rod 3 slidably installed on the inner wall of the hydraulic cylinder barrel 1.

[0028] Control component 4 is located on the side of hydraulic cylinder 1;

[0029] Control component 4 includes a mounting mechanism 41 located on the side of hydraulic cylinder 1;

[0030] An auxiliary mechanism 42 is provided on the side of the hydraulic cylinder 1, and the auxiliary mechanism 42 is connected to the mounting mechanism 41.

[0031] The mounting mechanism 41 includes a sealing gasket 411. One side of the sealing gasket 411 contacts the side wall of the connecting pipe 423, and the other side of the sealing gasket 411 contacts the side wall of the flow control valve 425. An upper arc-shaped snap-fit ​​plate 412 is installed on the side wall of the sealing gasket 411. A lower arc-shaped snap-fit ​​plate 415 is provided at the bottom of the upper arc-shaped snap-fit ​​plate 412. A positioning bolt 413 is rotatably installed on the inner wall of the lower arc-shaped snap-fit ​​plate 415. A nut 414 is threaded on the side wall of the positioning bolt 413.

[0032] In this embodiment, the inner wall of the upper arc-shaped snap-fit ​​plate 412 is in sealed contact with one end of the flow control valve 425, and the inner wall of the upper arc-shaped snap-fit ​​plate 412 is in sealed contact with the side wall of the connecting pipe 423.

[0033] In the specific implementation process, the operator can install the flow control valve 425 on the side wall of the hydraulic cylinder 1. A sealing gasket 411 is installed in the middle position between the side wall of the flow control valve 425 and the connecting pipe 423. Then, the upper arc-shaped snap-fit ​​plate 412 is snapped onto the side wall of the flow control valve 425 and the connecting pipe 423. Then, the position of the positioning bolt 413 can be rotated and used with the nut 414 to quickly install the flow control valve 425. The flow control valve 425 can be disassembled and repaired as needed by the operator.

[0034] Example 2: Based on Example 1, a preferred embodiment of the hydraulic cylinder with a built-in proportional flow control valve provided by this utility model is as follows: Figures 1 to 4 As shown: The auxiliary mechanism 42 includes an oil pipe 422 and a connecting pipe 423. The oil pipe 422 is fixedly installed on the side wall of the hydraulic cylinder 1. The connecting pipe 421 is fixedly installed on the side wall of the oil pipe 422. The connecting pipe 423 is fixedly installed on the side wall of the hydraulic cylinder 1. A flow control valve 425 is installed at one end of the connecting pipe 423. The oil pipe 424 is fixedly installed on the side wall of the flow control valve 425.

[0035] In this embodiment, the inner wall of the connecting pipe 421 is connected to the interior of the oil pipe 422, and the inner wall of the oil pipe 422 is connected to the interior of the hydraulic cylinder 1.

[0036] Furthermore, the inner wall of the second connecting pipe 423 is connected to the interior of the hydraulic cylinder 1, the inner wall of the second connecting pipe 423 is connected to the interior of the flow control valve 425, and the inner wall of the flow control valve 425 is connected to the interior of the second oil pipe 424.

[0037] In the specific implementation process, oil pipe 2 424 and connecting pipe 1 421 can be connected to the external oil circuit to improve the movement of the piston rod 3 inside the hydraulic cylinder 1. A flow control valve 425 is provided on the side wall of connecting pipe 2 423 to effectively control the amount of oil in the circuit.

[0038] 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 the 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.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic cylinder with a built-in proportional flow control valve, comprising a hydraulic cylinder barrel (1); The control component (4) is located on the side of the hydraulic cylinder (1); characterized in that: The control component (4) includes a mounting mechanism (41) disposed on the side of the hydraulic cylinder (1); An auxiliary mechanism (42) is provided on the side of the hydraulic cylinder (1), and the auxiliary mechanism (42) is connected to the mounting mechanism (41).

2. The hydraulic cylinder with a built-in proportional flow control valve according to claim 1, characterized in that: The hydraulic cylinder barrel (1) is fixedly mounted with a hydraulic cylinder body (2) on its side wall, and a piston rod (3) is slidably mounted on the inner wall of the hydraulic cylinder barrel (1).

3. The hydraulic cylinder with a built-in proportional flow control valve according to claim 1, characterized in that: The auxiliary mechanism (42) includes an oil pipe (422) and a connecting pipe (423). The oil pipe (422) is fixedly installed on the side wall of the hydraulic cylinder (1). The connecting pipe (421) is fixedly installed on the side wall of the oil pipe (422). The connecting pipe (423) is fixedly installed on the side wall of the hydraulic cylinder (1). A flow control valve (425) is installed at one end of the connecting pipe (423). The oil pipe (424) is fixedly installed on the side wall of the flow control valve (425).

4. A hydraulic cylinder with a built-in proportional flow control valve according to claim 3, characterized in that: The inner wall of the first connecting pipe (421) is connected to the inside of the first oil pipe (422), and the inner wall of the first oil pipe (422) is connected to the inside of the hydraulic cylinder (1).

5. A hydraulic cylinder with a built-in proportional flow control valve according to claim 4, characterized in that: The inner wall of the second connecting pipe (423) is connected to the inside of the hydraulic cylinder (1), the inner wall of the second connecting pipe (423) is connected to the inside of the flow control valve (425), and the inner wall of the flow control valve (425) is connected to the inside of the second oil pipe (424).

6. A hydraulic cylinder with a built-in proportional flow control valve according to claim 1, characterized in that: The installation mechanism (41) includes a sealing gasket (411), one side of which contacts the side wall of the connecting pipe (423), and the other side of which contacts the side wall of the flow control valve (425). An upper arc-shaped snap-fit ​​plate (412) is installed on the side wall of the sealing gasket (411), and a lower arc-shaped snap-fit ​​plate (415) is provided at the bottom of the upper arc-shaped snap-fit ​​plate (412). A positioning bolt (413) is rotatably installed on the inner wall of the lower arc-shaped snap-fit ​​plate (415), and a nut (414) is threaded on the side wall of the positioning bolt (413).

7. A hydraulic cylinder with a built-in proportional flow control valve according to claim 6, characterized in that: The inner wall of the upper arc-shaped snap-fit ​​plate (412) is in sealed contact with one end of the flow control valve (425), and the inner wall of the upper arc-shaped snap-fit ​​plate (412) is in sealed contact with the side wall of the connecting pipe (423).

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