Hydraulic device with guiding, positioning and buffering functions

Abstract

The utility model relates to the technical field of hydraulic devices, in particular to a hydraulic device with guiding, positioning and buffering functions. Comprising a hydraulic oil storage tank, a shell arranged on one side of the hydraulic oil storage tank, an oil conveying mechanism arranged at the bottom end of the hydraulic oil storage tank and capable of communicating with the bottom of the shell, and a compression device arranged at the top of the hydraulic oil storage tank and capable of communicating with the top of the shell. The moving assembly is arranged in the shell and can longitudinally move in a reciprocating mode, the sleeve is arranged at the bottom of the shell, a sliding groove is longitudinally formed in the inner wall of the sleeve, and a limiting groove is formed in one side of the sleeve; the moving assembly comprises a piston rod longitudinally installed in the shell, and a sliding block capable of sliding along the sliding groove is fixed to the side wall of the bottom end of the piston rod. And a limiting rod is horizontally mounted on one side of the bottom of the piston rod and can extend out of the interior of the sleeve through the limiting groove. The problem that the piston rod is prone to autorotation in the moving process is solved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic device technology, specifically to a hydraulic device with guiding positioning and buffering functions. Background Technology

[0002] A hydraulic system is a system that uses liquid as the working medium and achieves energy transfer and control based on Pascal's principle. It consists of power components (such as hydraulic pumps), actuators (such as hydraulic cylinders and hydraulic motors), control components (such as various hydraulic valves), and auxiliary components (such as oil tanks and filters). Hydraulic systems offer advantages such as high power density, fast response, and precise control, and are widely used in fields such as engineering machinery, aerospace, and shipbuilding. They are key equipment for achieving efficient and precise operations in modern industry.

[0003] Chinese patent CN210599650U discloses a hydraulic cylinder and hydraulic device, belonging to the field of hydraulic cylinder technology. The hydraulic cylinder includes a cylinder body and a piston, with the piston dividing the cylinder body to form a first chamber and a second chamber. The cylinder body is provided with a first oil port, a second oil port, a first oil passage, and a second oil passage. The first oil port and the second oil port are both located at the same end of the cylinder body. The first oil passage is connected to both the first oil port and the first chamber. The second oil passage is connected to both the second oil port and the second chamber. This hydraulic device, by placing the first oil port and the second oil port at the same end of the cylinder body and connecting them to the first and second chambers respectively, makes the oil port positions of the hydraulic cylinder compact, reducing the installation space required at the other end of the cylinder body, reducing space occupation, and exhibiting high reliability, wide applicability, and strong practicality.

[0004] The hydraulic device described in the aforementioned patent document moves a piston rod longitudinally via a piston. However, the piston rod is prone to rotation during movement. Therefore, a hydraulic device with guiding, positioning, and buffering functions is proposed. Utility Model Content

[0005] To address the aforementioned problems, a hydraulic device with guiding, positioning, and buffering functions is provided. This device involves fixing a sleeve to the bottom of a housing, and then longitudinally creating a limiting groove on the inner wall of the sleeve. When the piston rod moves longitudinally, the slider fixed at the bottom of the piston rod can slide along the groove, preventing the piston rod from rotating during movement. This solves the problem of the piston rod easily rotating during movement.

[0006] To address the problems of the prior art, this application provides a hydraulic device with guiding, positioning, and buffering functions, including a hydraulic oil storage tank, a housing disposed on one side of the hydraulic oil storage tank, an oil delivery mechanism disposed at the bottom of the hydraulic oil storage tank that can communicate with the bottom of the housing, a compression device disposed at the top of the hydraulic oil storage tank that can communicate with the top of the housing, an action component disposed inside the housing that can move longitudinally back and forth, and a sleeve disposed at the bottom of the housing. The inner wall of the sleeve is longitudinally provided with a sliding groove, and a limit groove is provided on one side of the sleeve.

[0007] The actuating component includes a piston rod mounted longitudinally inside the housing, and a slider that can slide along a groove is fixed on the side wall at the bottom end of the piston rod.

[0008] A limit rod is horizontally installed on one side of the bottom of the piston rod, and the limit rod can extend out of the inside of the sleeve through the limit groove.

[0009] As one technical solution of this application, the oil conveying mechanism includes a fixed pipe installed longitudinally at the bottom of the hydraulic oil storage tank, and a through hole for hydraulic oil return is opened at the top of the fixed pipe.

[0010] The bottom of the fixed tube is equipped with a bent tube that can communicate with the shell.

[0011] As one technical solution of this application, the bend includes a solenoid valve that can adjust the flow of hydraulic oil. The solenoid valve is fixed at the end of the bend away from the fixed pipe, and the top of the solenoid valve is fixed to the bottom of the housing and can communicate with the inside of the housing.

[0012] As one technical solution of this application, the compression device includes an air pump fixed to the top of the hydraulic oil storage tank, the output end of the air pump is connected to an air valve, and the end of the air valve away from the air pump is fixed to the top of the hydraulic oil storage tank and can communicate with the inside of the hydraulic oil storage tank.

[0013] As one technical solution of this application, the input end of the air pump is equipped with a first air pipe, and the end of the first air pipe away from the air pump is fixed to the top of the housing and can communicate with the inside of the housing.

[0014] As one technical solution of this application, a second trachea is provided outside the first trachea for controlling its closure or opening.

[0015] As one technical solution of this application, a piston is provided inside the housing, and the piston is fixed on the piston rod.

[0016] As one technical solution of this application, a fixing frame for fixing the shell is installed on the side wall of the hydraulic oil storage tank, and the shell is fixedly connected to the fixing frame.

[0017] The advantages of this utility model compared to the prior art are:

[0018] 1. This application fixes the sleeve to the bottom of the housing, and then longitudinally opens a sliding groove for limiting movement on the inner wall of the sleeve. When the piston rod moves longitudinally, the slider fixed at the bottom of the piston rod can slide along the sliding groove, preventing the piston rod from rotating during movement. This solves the problem of the piston rod easily rotating during movement.

[0019] 2. This application utilizes the hydraulic oil at the bottom of the housing, squeezed by the moving component, to allow the hydraulic oil to enter the curved pipe, and then flow back to the hydraulic oil storage tank through the fixed pipe and the through hole at the top. During this process, the reaction force of the hydraulic oil hinders the downward speed of the moving component, causing it to move slowly, thus achieving a buffering effect. This effectively prevents the moving component from colliding with the housing at excessive speed, thereby extending the service life of the hydraulic device. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of a hydraulic device with guiding, positioning, and buffering functions. Figure 1 .

[0021] Figure 2 A three-dimensional structural diagram of a hydraulic device with guiding, positioning, and buffering functions. Figure 2 .

[0022] Figure 3 This is a top view of a hydraulic device with guiding, positioning, and buffering functions.

[0023] Figure 4 yes Figure 3 Sectional view at point AA.

[0024] Figure 5 This is a three-dimensional view of the housing of a hydraulic device with guiding, positioning, and buffering functions.

[0025] Figure 6 yes Figure 4 A magnified structural diagram at point B in the diagram.

[0026] The following are the labels in the diagram: 1. Hydraulic oil storage tank; 2. Shell; 3. Compression device; 31. Air pump; 32. First air pipe; 33. Second air pipe; 34. Air valve; 4. Fixing frame; 5. Oil delivery mechanism; 51. Fixing pipe; 52. Through hole; 53. Bend; 54. Solenoid valve; 6. Sleeve; 61. Slide groove; 62. Limiting groove; 7. Moving assembly; 70. Piston rod; 71. Slider; 72. Limiting rod; 73. Piston. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0028] See Figures 1-6 As shown, a hydraulic device with guiding, positioning and buffering functions includes a hydraulic oil storage tank 1, a housing 2 disposed on one side of the hydraulic oil storage tank 1, an oil delivery mechanism 5 disposed at the bottom of the hydraulic oil storage tank 1 and capable of communicating with the bottom of the housing 2, a compression device 3 disposed at the top of the hydraulic oil storage tank 1 and capable of communicating with the top of the housing 2, an action component 7 disposed inside the housing 2 and capable of longitudinal reciprocating, and a sleeve 6 disposed at the bottom of the housing 2. The inner wall of the sleeve 6 is provided with a longitudinally grooved groove 61, and a limiting groove 62 is provided on one side of the sleeve 6.

[0029] The action component 7 includes a piston rod 70 that is longitudinally mounted inside the housing 2, and a slider 71 that can slide along the slide groove 61 is fixed on the side wall at the bottom end of the piston rod 70.

[0030] A limiting rod 72 is horizontally installed on one side of the bottom of the piston rod 70. The limiting rod 72 can extend out of the inside of the sleeve 6 through the limiting groove 62.

[0031] By fixing the sleeve 6 to the bottom of the housing 2, a longitudinally extending groove 61 for limiting movement is formed on the inner wall of the sleeve 6. When the piston rod 70 moves longitudinally, the slider 71 fixed at the bottom of the piston rod 70 can slide along the groove 61, effectively preventing the piston rod 70 from rotating during movement. By forming a limiting groove 62 on one side of the sleeve 6, when the piston rod 70 moves longitudinally, the piston rod 70 can drive the limiting rod 72 installed on one side to move along the inside of the limiting groove 62, so that the limiting rod 72 and the limiting groove 62 cooperate to limit the movement position of the piston rod 70, avoiding the problem of hydraulic oil leakage due to overload of the piston rod 70 stroke.

[0032] See Figure 4 As shown, the oil delivery mechanism 5 includes a fixed pipe 51 installed longitudinally at the bottom of the hydraulic oil storage tank 1, and a through hole 52 for hydraulic oil return is provided at the top of the fixed pipe 51.

[0033] The bottom of the fixed tube 51 is equipped with a bent tube 53 that can communicate with the housing 2.

[0034] When the moving component 7 descends, it compresses the hydraulic oil at the bottom of the housing 2, causing the hydraulic oil to enter the curved pipe 53. From there, it flows back to the hydraulic oil storage tank 1 through the fixed pipe 51 and the top through-hole 52. During this process, the reaction force of the hydraulic oil slows the descent of the moving component 7, thus buffering its movement. This effectively prevents the moving component 7 from colliding with the housing 2 at excessive speed and causing damage, thereby extending the service life of the hydraulic system.

[0035] See Figure 4 As shown, the bend 53 includes a solenoid valve 54 that can adjust the flow of hydraulic oil. The solenoid valve 54 is fixed at the end of the bend 53 away from the fixed pipe 51. The top of the solenoid valve 54 is fixed to the bottom of the housing 2 and can communicate with the inside of the housing 2.

[0036] A solenoid valve 54 is fixed at the end of the bend 53 away from the fixed pipe 51. When the solenoid valve 54 is fully open, the flow rate of the hydraulic oil inside the housing 2 within the bend 53 reaches its maximum, causing the hydraulic oil level inside the housing 2 to drop rapidly. At this time, the moving component 7 can descend quickly. When the solenoid valve 54 is partially closed, the flow rate of the hydraulic oil inside the housing 2 decreases accordingly. At this time, the hydraulic oil level inside the housing 2 drops slowly, thus slowing down the descent speed of the moving component 7. When the solenoid valve 54 is fully closed, the hydraulic oil level inside the housing 2 remains unchanged, thus preventing the moving component 7 from descending and stopping its movement.

[0037] See Figure 2 and Figure 4 As shown, the compression device 3 includes an air pump 31 fixed to the top of the hydraulic oil storage tank 1. The output end of the air pump 31 is connected to an air valve 34. The end of the air valve 34 away from the air pump 31 is fixed to the top of the hydraulic oil storage tank 1 and can communicate with the interior of the hydraulic oil storage tank 1.

[0038] The air valve 34 is fixed to the top of the hydraulic oil storage tank 1 at the end away from the air pump 31. When the air pump 31 is started, the air pump 31 can inject air into the hydraulic oil storage tank 1 or remove air from the hydraulic oil storage tank 1 through the air valve 34.

[0039] See Figure 2 and Figure 4 As shown, the input end of the air pump 31 is equipped with a first air pipe 32. The end of the first air pipe 32 away from the air pump 31 is fixed to the top of the housing 2 and can communicate with the inside of the housing 2.

[0040] When the air pump 31 is started, it can inject air into the housing 2 or evacuate the gas inside the housing 2 through the first air pipe 32. When air is injected into the housing 2, the pressure inside the housing 2 increases and pushes the moving component 7 longitudinally. When the air is evacuated from the housing 2, the pressure inside the housing 2 decreases, thereby weakening the downward force pushing the moving component 7. When hydraulic oil from the hydraulic oil storage tank 1 is injected into the housing 2, the hydraulic oil can push the moving component 7 upward, thereby realizing the reciprocating motion of the moving component 7.

[0041] See Figure 2 and Figure 4 As shown, a second trachea 33 is provided outside the first trachea 32 for controlling its closure or opening.

[0042] A second air pipe 33 is installed on the first air pipe 32. The speed of air flow inside the first air pipe 32 is controlled by the opening size of the second air pipe 33, thereby controlling the speed of air injected into or extracted from the housing 2.

[0043] See Figure 4 As shown, a piston 73 is provided inside the housing 2, and the piston 73 is fixed on the piston rod 70.

[0044] To ensure effective movement of the piston rod 70, a piston 73 is fixed to the piston rod 70. When the hydraulic oil level inside the housing 2 rises, it pushes the piston 73 upward, and the piston 73 simultaneously drives the piston rod 70 upward. When the air pressure inside the housing 2 increases, the air pressure inside the housing 2 pushes the piston 73 downward, which in turn causes the piston 73 to drive the piston rod 70 downward. This allows the piston rod 70 to move effectively.

[0045] See Figure 1 , Figure 2 and Figure 3 As shown, a fixing frame 4 for fixing the shell 2 is installed on the side wall of the hydraulic oil storage tank 1, and the shell 2 is fixedly connected to the fixing frame 4.

[0046] To ensure stability between the hydraulic oil storage tank 1 and the shell 2, multiple fixing brackets 4 are fixed to one side of the hydraulic oil storage tank 1, and then the shell 2 is fixed to the side of the fixing brackets 4 away from the hydraulic oil storage tank 1. This allows the shell 2 to be fixed to one side of the hydraulic oil storage tank 1 by the fixing brackets 4, ensuring the relative stability of the hydraulic oil storage tank 1 and the shell 2.

[0047] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A hydraulic device with guiding, positioning, and buffering functions, comprising a hydraulic oil storage tank (1), a housing (2) disposed on one side of the hydraulic oil storage tank (1), an oil delivery mechanism (5) disposed at the bottom of the hydraulic oil storage tank (1) and capable of communicating with the bottom of the housing (2), a compression device (3) disposed at the top of the hydraulic oil storage tank (1) and capable of communicating with the top of the housing (2), a moving component (7) disposed inside the housing (2) and capable of longitudinal reciprocating movement, and a sleeve (6) disposed at the bottom of the housing (2), characterized in that, The inner wall of the sleeve (6) is provided with a longitudinal groove (61), and a limiting groove (62) is provided on one side of the sleeve (6). The action component (7) includes a piston rod (70) longitudinally mounted inside the housing (2), and a slider (71) that can slide along a groove (61) is fixed on the side wall at the bottom end of the piston rod (70). A limiting rod (72) is horizontally installed on one side of the bottom of the piston rod (70), and the limiting rod (72) can extend out of the inside of the sleeve (6) through the limiting groove (62).

2. The hydraulic device with guiding, positioning, and buffering functions according to claim 1, characterized in that, The oil delivery mechanism (5) includes a fixed pipe (51) installed longitudinally at the bottom of the hydraulic oil storage tank (1), and a through hole (52) for hydraulic oil return is provided at the top of the fixed pipe (51). The bottom of the fixed tube (51) is equipped with a bent tube (53) that can communicate with the housing (2).

3. A hydraulic device with guiding, positioning, and buffering functions according to claim 2, characterized in that, The bend (53) includes a solenoid valve (54) that can adjust the flow of hydraulic oil. The solenoid valve (54) is fixed at the end of the bend (53) away from the fixed pipe (51). The top of the solenoid valve (54) is fixed to the bottom of the housing (2) and can communicate with the inside of the housing (2).

4. A hydraulic device with guiding, positioning, and buffering functions according to claim 1, characterized in that, The compression device (3) includes an air pump (31) fixed to the top of the hydraulic oil storage tank (1). The output end of the air pump (31) is connected to an air valve (34). The end of the air valve (34) away from the air pump (31) is fixed to the top of the hydraulic oil storage tank (1) and can communicate with the interior of the hydraulic oil storage tank (1).

5. A hydraulic device with guiding, positioning, and buffering functions according to claim 4, characterized in that, The input end of the air pump (31) is equipped with a first air pipe (32), and the end of the first air pipe (32) away from the air pump (31) is fixed to the top of the housing (2) and can communicate with the inside of the housing (2).

6. A hydraulic device with guiding, positioning, and buffering functions according to claim 5, characterized in that, The first trachea (32) is provided with a second trachea (33) outside for controlling its closure or opening.

7. A hydraulic device with guiding, positioning, and buffering functions according to claim 1, characterized in that, A piston (73) is provided inside the housing (2), and the piston (73) is fixed on the piston rod (70).

8. A hydraulic device with guiding, positioning, and buffering functions according to claim 1, characterized in that, The hydraulic oil storage tank (1) is equipped with a fixing frame (4) for fixing the shell (2) on its side wall, and the shell (2) is fixedly connected to the fixing frame (4).

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