A suction valve oil cylinder piston

Abstract

The utility model belongs to the technical field, and specifically relates to a suction valve oil cylinder piston, including an oil guide transverse pipe, the lower end of which is fixedly connected to a vertical oil cylinder, one-way valves are arranged inside the oil guide transverse pipe at positions on both sides of the vertical oil cylinder, the one-way valves are fixedly connected to the oil guide transverse pipe, and the oil guide transverse pipe is connected to the interior of the vertical oil cylinder; a piston is slidably connected to the interior of the vertical oil cylinder, the piston includes a piston body, the upper end of the piston body is arranged as a U-shaped groove, a rotating assembly is arranged in the U-shaped groove, a sliding head is arranged at the lower end of the rotating assembly, an active cavity is opened at the position of the piston body corresponding to the sliding head, the sliding head is located inside the active cavity and slidably connected to the active cavity, a piston rod is arranged at the lower end of the piston body, and one end of the piston rod close to the piston body extends to the inside of the active cavity and is fixedly connected to the sliding head. The purpose of the utility model is to provide a suction valve oil cylinder piston, which can automatically discharge solid particles remaining in the oil cylinder, reduce the friction of the solid particles on the inner wall of the oil cylinder and the piston, and increase the service life of the oil cylinder and the piston.

Description

Technical Field

[0001] The utility model belongs to the technical field of pistons, and in particular relates to a suction valve oil cylinder piston. Background Art

[0002] Cylinder pistons usually refer to pistons in hydraulic systems, which are used to push or pull inside hydraulic cylinders. These pistons are usually made of metal materials such as steel or aluminum alloy to withstand high pressure and high temperature. The design of the piston usually takes into account sealing and wear resistance to ensure the normal operation and long-term stability of the hydraulic system.

[0003] The existing piston needs to make multiple sliding contacts with the inner wall of the oil cylinder when in use. The solid particles in the oil sometimes settle on the piston and are not easy to be discharged with the oil. Under the multiple sliding contacts between the piston and the inner wall of the oil cylinder, the solid particles will cause friction between the two, thereby reducing the service life of both. For this reason, we propose a suction valve oil cylinder piston. Utility Model Content

[0004] The utility model aims to provide a suction valve oil cylinder piston, which can automatically discharge the solid particles remaining in the oil cylinder, reduce the friction of the solid particles on the inner wall of the oil cylinder and the piston, and increase the service life of the oil cylinder and the piston.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A suction valve oil cylinder piston, comprising:

[0007] The oil guide cross pipe, the lower end of which is fixedly connected to a vertical oil cylinder, one-way valves are arranged inside the oil guide cross pipe at positions on both sides of the vertical oil cylinder, the one-way valves are fixedly connected to the oil guide cross pipe, and the oil guide cross pipe is in communication with the interior of the vertical oil cylinder;

[0008] The vertical oil cylinder is internally slidably connected with a piston, and the piston includes a piston body, the upper end of the piston body is set as a U-shaped groove, a rotating component is set in the U-shaped groove, and a sliding head is set at the lower end of the rotating component. The piston body is provided with an active cavity at a position corresponding to the sliding head, and the sliding head is located inside the active cavity and slidably connected to the active cavity. The lower end of the piston body is provided with a piston rod, and the end of the piston rod close to the piston body extends to the inside of the active cavity and is fixedly connected to the sliding head.

[0009] The rotating assembly includes a main rotating shaft, a blade rotating shaft is rotatably connected to the main rotating shaft, a plurality of square blades are evenly and fixedly connected to the blade rotating shaft, an external frame is arranged outside the blade rotating shaft, the lower end of the external frame is fixedly connected to the piston body, and the upper end of the main rotating shaft is rotatably connected to the external frame

[0010] The rotating assembly also includes a rotating threaded tube, which is located inside the piston body and is rotatably connected to the piston body. The upper end of the rotating threaded tube is fixedly connected to the main shaft, the internal thread of the rotating threaded tube is connected to a driving screw, the lower end of the driving screw is fixedly connected to a connecting rod, and the lower end of the connecting rod is fixedly connected to the sliding head.

[0011] Two sliding grooves are provided inside the fan blade shaft, and the two sliding grooves are arranged opposite to each other. A sliding cap is slidably connected inside the sliding groove, and a limiting spring is fixedly connected between the sliding cap and the sliding groove. A rotating bevel block is fixedly connected to the position of the main shaft corresponding to the sliding cap.

[0012] The technical effects achieved by the utility model are:

[0013] The utility model can drive the rotation of the rotating assembly through the design of the rotating assembly, while the piston rod pushes the piston to move upward, and the square fan blade drives the oil in the U-shaped groove to flow through the rotation, so that the solid particles in the U-shaped groove are rolled up and flow out with the oil.

[0014] The utility model can make the rotating assembly rotate only clockwise by setting a sliding cap inside the fan blade shaft, which can not only meet the purpose of rolling up solid particles but also prevent the piston from driving the rotating assembly to rotate counterclockwise when moving downward, thereby causing the square fan blade to be subjected to excessive pressure due to the inclination angle and reducing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model;

[0016] Figure 2 It is an overall internal structure diagram provided by an embodiment of the utility model;

[0017] Figure 3 It is an enlarged view of the piston provided in the embodiment of the utility model;

[0018] Figure 4 It is a cross-sectional view of a piston provided by an embodiment of the utility model;

[0019] Figure 5 It is a cross-sectional view of a rotating threaded pipe provided by an embodiment of the utility model;

[0020] Figure 6 It is a top view of the upper part of the rotating assembly provided by the embodiment of the utility model;

[0021] Figure 7 It is a cross-sectional view of the upper part of the rotating assembly provided by the embodiment of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Oil guide horizontal pipe; 2. Vertical oil cylinder; 3. One-way valve; 4. Piston body; 5. Piston rod; 6. Square fan blade; 7. Fan blade shaft; 8. Main shaft; 9. External frame; 10. Sliding head; 11. Rotating threaded tube; 12. Driving screw; 13. Connecting rod; 14. Sliding cap; 15. Limit spring; 16. Rotating bevel block. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0025] Embodiment 1:

[0026] like Figure 1-Figure 4 As shown, a suction valve oil cylinder piston, an oil guide cross pipe 1, the lower end of the oil guide cross pipe 1 is fixedly connected to a vertical oil cylinder 2, and a check valve 3 is arranged at positions on both sides of the vertical oil cylinder 2 inside the oil guide cross pipe 1, and the check valve 3 is fixedly connected to the oil guide cross pipe 1, and the oil guide cross pipe 1 is connected to the inside of the vertical oil cylinder 2;

[0027] Among them, the one-way valve 3 is used to limit the inflow and outflow of oil. The one-way valve 3 is placed in the oil guide cross pipe 1 in sequence. When the piston body 4 moves downward, a negative pressure environment is formed in the vertical cylinder 2, and the oil enters the vertical cylinder 2 from the one-way valve 3 on one side. When the piston body 4 moves upward, a high-pressure environment is formed in the vertical cylinder 2, and the oil in the vertical cylinder 2 is pressed out through the one-way valve 3 on the other side.

[0028] A piston is slidably connected inside the vertical oil cylinder 2, and the piston includes a piston body 4. The upper end of the piston body 4 is set as a U-shaped groove, and a rotating component is set in the U-shaped groove. A sliding head 10 is set at the lower end of the rotating component. An active cavity is opened at the position of the piston body 4 corresponding to the sliding head 10. The sliding head 10 is located inside the active cavity and slidably connected to the active cavity. A piston rod 5 is set at the lower end of the piston body 4, and the end of the piston rod 5 close to the piston body 4 extends to the inside of the active cavity and is fixedly connected to the sliding head 10.

[0029] The piston rod 5 drives the sliding head 10 to move up and down, and a certain gap is reserved between the sliding cavity and the sliding head 10.

[0030] Embodiment 2:

[0031] This embodiment is basically the same as the first embodiment, the only difference is that:

[0032] like Figure 3-Figure 5As shown, the rotating assembly includes a main rotating shaft 8, to which a blade rotating shaft 7 is rotatably connected, and to which a plurality of square blades 6 are evenly and fixedly connected. An external frame 9 is arranged on the outer side of the blade rotating shaft 7, and the lower end of the external frame 9 is fixedly connected to the piston body 4, and the upper end of the main rotating shaft 8 is rotatably connected to the external frame 9.

[0033] The external frame 9 is used to fix the main rotating shaft 8 to increase the stability of the main rotating shaft 8 .

[0034] Furthermore, the rotating assembly also includes a rotating threaded tube 11, which is located inside the piston body 4 and is rotatably connected to the piston body 4. The upper end of the rotating threaded tube 11 is fixedly connected to the main shaft 8. The internal thread of the rotating threaded tube 11 is connected to a driving screw 12. The lower end of the driving screw 12 is fixedly connected to a connecting rod 13. The lower end of the connecting rod 13 is fixedly connected to the sliding head 10.

[0035] The piston rod 5 drives the sliding head 10 to move, and the sliding head 10 also drives the connecting rod 13 to move. When the sliding head 10 moves upward, the connecting rod 13 pushes the driving screw 12 upward. The rotating threaded tube 11 will rotate along with the thread, thereby driving the entire rotating assembly to rotate.

[0036] Embodiment three:

[0037] This embodiment is basically the same as the second embodiment, the only difference is that:

[0038] like Figure 6-Figure 7 As shown, two sliding grooves are provided inside the fan blade shaft 7, and the two sliding grooves are arranged opposite to each other. A sliding cap 14 is slidably connected inside the sliding groove, and one side of the sliding cap 14 is an inclined surface. A limiting spring 15 is fixedly connected between the sliding cap 14 and the sliding groove, and a rotating inclined block 16 is fixedly connected to the position of the main shaft 8 corresponding to the sliding cap 14, and one side of the rotating inclined block 16 corresponding to the sliding cap 14 is an inclined surface.

[0039] When the piston moves upward, the main shaft 8 rotates clockwise, and the surface where the rotating bevel block 16 contacts with the sliding cap 14 is a plane, driving the fan shaft 7 to rotate along with the main shaft 8. When the piston moves downward, the main shaft 8 rotates counterclockwise, and the surface where the rotating bevel block 16 contacts with the sliding cap 14 is an inclined surface. The limit spring 15 is compressed into the sliding groove, and the fan shaft 7 will not rotate along with it.

[0040] According to the above structure, the design of the rotating assembly can drive the rotation of the rotating assembly while the piston rod 5 pushes the piston to move upward. The square fan blades 6 drive the oil in the U-shaped groove to flow by rotation, thereby rolling up the solid particles in the U-shaped groove and flowing out with the oil; the setting of the sliding cap 14 in the fan blade shaft 7 can make the rotating assembly only rotate clockwise, which can not only meet the purpose of rolling up the solid particles but also prevent the piston from driving the rotating assembly to rotate counterclockwise when moving downward, thereby causing the square fan blades 6 to be subjected to excessive pressure due to the inclination angle, thereby reducing the service life.

[0041] The working principle of the utility model is as follows: oil is introduced into the required position through the oil guide transverse pipe 1, and the piston rod 5 controls the up and down movement of the piston to control the flow rate of the oil. When the piston rod 5 drives the piston to move up and down, it also drives the rotating component to work. The design of the rotating component can drive the oil in the U-shaped groove to flow, thereby rolling up the solid particles in the U-shaped groove and flowing out with the oil.

[0042] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the corresponding technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A suction valve cylinder piston, characterized in that: An oil guide transverse pipe (1), the lower end of the oil guide transverse pipe (1) being fixedly connected to a vertical oil cylinder (2), one-way valves (3) being arranged inside the oil guide transverse pipe (1) at positions on both sides of the vertical oil cylinder (2), the one-way valves (3) being fixedly connected to the oil guide transverse pipe (1), and the oil guide transverse pipe (1) being in communication with the interior of the vertical oil cylinder (2); A piston is slidably connected inside the vertical oil cylinder (2), and the piston comprises a piston body (4). The upper end of the piston body (4) is arranged as a U-shaped groove, a rotating assembly is arranged in the U-shaped groove, and a sliding head (10) is arranged at the lower end of the rotating assembly. An active cavity is opened in the piston body (4) at a position corresponding to the sliding head (10), and the sliding head (10) is located inside the active cavity and slidably connected to the active cavity. A piston rod (5) is arranged at the lower end of the piston body (4), and one end of the piston rod (5) close to the piston body (4) extends into the active cavity and is fixedly connected to the sliding head (10).

2. A suction valve cylinder piston according to claim 1, characterized in that: The rotating assembly comprises a main rotating shaft (8), a blade rotating shaft (7) being rotatably connected to the main rotating shaft (8), a plurality of square blades (6) being evenly and fixedly connected to the blade rotating shaft (7), an external frame (9) being arranged outside the blade rotating shaft (7), the lower end of the external frame (9) being fixedly connected to the piston body (4), and the upper end of the main rotating shaft (8) being rotatably connected to the external frame (9).

3. A suction valve cylinder piston according to claim 2, characterized in that: The rotating assembly further comprises a rotating threaded tube (11), the rotating threaded tube (11) being located inside the piston body (4) and being rotationally connected to the piston body (4), the upper end of the rotating threaded tube (11) being fixedly connected to the main rotating shaft (8), the internal thread of the rotating threaded tube (11) being connected to a driving screw (12), the lower end of the driving screw (12) being fixedly connected to a connecting rod (13), and the lower end of the connecting rod (13) being fixedly connected to the sliding head (10).

4. The suction valve cylinder piston according to claim 2, characterized in that: The fan blade shaft (7) has two sliding grooves formed inside, the two sliding grooves are arranged opposite to each other, a sliding cap (14) is slidably connected inside the sliding groove, a limit spring (15) is fixedly connected between the sliding cap (14) and the sliding groove, and a rotating inclined block (16) is fixedly connected to the main shaft (8) at a position corresponding to the sliding cap (14).

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