Local pressurizing oil cylinder

Abstract

The utility model relates to the technical field of oil cylinders, and discloses a local pressurization oil cylinder which comprises a cylinder body, the left side of the cylinder body is fixedly communicated with a first oil inlet and outlet pipe and a second oil inlet and outlet pipe, a piston block is arranged on the inner wall of the cylinder body in an attached mode, and a piston rod is fixedly connected to the inner wall of the piston block. The surface of the piston rod makes contact with the inner wall of the cylinder body, a supporting plate is fixedly connected to the upper surface of the piston rod, a U-shaped plate is fixedly connected to the upper surface of the supporting plate, a first round hole is formed in the upper surface of the U-shaped plate, and a plunger rod is arranged on the inner wall of the first round hole in an attached mode. According to the local pressurization oil cylinder, the supporting plate, the U-shaped plate, the first round holes, the plunger rods, the fixing grooves, the strip-shaped holes, the fixing supports and the second round holes are matched, the supporting plate and the plunger rods can be disassembled and assembled, and therefore the number of the plunger rods on the local pressurization oil cylinder can be adjusted according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinders, in particular to a local pressurized oil cylinder. Background Art

[0002] The oil cylinder is a hydraulic oil cylinder. The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When it is used to realize reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. At present, the local pressurized oil cylinder on the market is mainly composed of a cylinder body, an oil filling port, a piston block, a plunger rod, a buffer spring and a buffer plate. For example, a local pressurized oil cylinder disclosed in Chinese patent announcement number CN216922704U, in which the plunger rod is controlled to move up and down by hydraulic oil and a piston block. At the same time, when the piston block moves down, the collision between the piston block and the cylinder body can be reduced by the cooperation of the buffer spring and the buffer plate. However, since the number of plunger rods on the local pressurized oil cylinder and the buffering capacity of the buffer plate are fixed, the local pressurized oil cylinder cannot meet different usage requirements, thereby making the use range of the local pressurized oil cylinder small. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: At present, the local pressurized oil cylinder on the market is mainly composed of a cylinder body, an oil filling port, a piston block, a plunger rod, a buffer spring and a buffer plate, wherein the plunger rod is controlled to move up and down by hydraulic oil and the piston block. At the same time, when the piston block moves downward, the collision between the piston block and the cylinder body can be reduced by the cooperation of the buffer spring and the buffer plate. However, since the number of plunger rods and the buffering capacity of the buffer plate on the local pressurized oil cylinder are fixed, the local pressurized oil cylinder cannot meet different usage requirements, so that the use range of the local pressurized oil cylinder is relatively small, and a local pressurized oil cylinder is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The cam is provided with a first end for receiving the oil inlet and an second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a second end for receiving the oil inlet and an outlet, and the cam is provided with a

[0006] Preferably, the fixing bracket includes a nut, the inner wall of the nut is threadedly connected to a first bolt, the surface of the first bolt and the inner wall of the second circular hole are fixedly connected to a first bearing, the front and rear sides of the nut are fixedly connected to a hollow cylinder, the inner wall of the hollow cylinder is in contact with the surface of the U-shaped plate, the left and right sides of the U-shaped plate are provided with strip grooves, and the inner walls of the fixing grooves, the inner walls of the strip grooves and the inner walls of the strip holes are all fitted with fixing columns.

[0007] Preferably, the strip-shaped hole is parallel to the horizontal plane, and the angle between the strip-shaped groove and the horizontal plane is 30°.

[0008] Preferably, the surface of the piston rod and the bottom of the support plate are both fixedly connected with reinforcement blocks.

[0009] Preferably, a third circular hole is opened at the bottom of the cylinder body, and an adjustable buffer bracket is fixedly connected to the inner wall of the third circular hole and the bottom of the cylinder body.

[0010] Preferably, the adjustable buffer bracket includes a second bolt, the surface of the second bolt is threadedly connected to a threaded barrel, the upper surface of the threaded barrel is fixedly connected to the bottom of the cylinder body, the surface of the second bolt is fixedly connected to a second bearing, the surface of the second bearing is fixedly connected to a hollow plate, the upper surface of the hollow plate is fixedly connected to a first cylinder, the inner wall of the first cylinder is fixedly connected to a buffer spring, the upper surface of the buffer spring is fixedly connected to a buffer plate, the surface of the first cylinder is fitted with a second cylinder, and the surface of the second cylinder is fixedly connected to the inner wall of the third circular hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model is provided with a support plate, a U-shaped plate, a first circular hole, a plunger rod, a fixing groove, a strip hole, a fixing bracket and a second circular hole, wherein when a user rotates a first bolt on the fixing bracket, the hollow cylinder can be moved upward or downward by the cooperation of the first bolt and the nut, and the fixing column can be moved forward and backward by the cooperation of the strip hole and the strip groove. At the same time, when the fixing column is in contact with the fixing groove, the plunger rod can be fixed on the support plate by the cooperation of the fixing column and the fixing groove. When the fixing groove is separated from the fixing column, the plunger rod can be directly separated from the support plate, and then the support plate and the plunger rod can be disassembled and assembled by the cooperation of the support plate, the U-shaped plate, the first circular hole, the plunger rod, the fixing groove, the strip hole, the fixing bracket and the second circular hole, so that the number of plunger rods on the local pressurized oil cylinder can be adjusted as needed.

[0013] (2) The utility model cooperates with the second bolt and the threaded barrel so that the user can change the distance between the hollow plate and the cylinder body by turning the second bolt. At the same time, by adjusting the distance between the hollow plate and the cylinder body, the thrust of the piston block of the buffer spring can be changed when the piston block moves to the lowest point, thereby allowing the adjustable buffer bracket to adjust the buffering capacity of the piston block as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 Sectional view at AA;

[0016] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0017] Figure 4 It is a front view of the structure of the utility model;

[0018] Figure 5 This is a bottom view of the cylinder body of the utility model;

[0019] Figure 6 It is a front view of the piston block in the utility model;

[0020] Figure 7 It is a top view of the U-shaped plate in the utility model;

[0021] Figure 8 It is a side view of the U-shaped plate in the utility model;

[0022] Fig. 9 It is a side view of the plunger rod in the utility model;

[0023] Fig.10 It is a front view of the fixing bracket in the utility model;

[0024] Fig.11 for Fig.10 Sectional view at CC;

[0025] Fig.12 It is a schematic diagram of the adjustable buffer bracket in the utility model.

[0026] In the figure: 1. cylinder body; 2. first oil inlet and outlet pipes; 3. second oil inlet and outlet pipes; 4. piston block; 5. piston rod; 6. support plate; 7. U-shaped plate; 8. first circular hole; 9. plunger rod; 10. fixing groove; 11. strip hole; 12. fixing bracket; 121. nut; 122. first bolt; 123. first bearing; 124. hollow cylinder; 125. strip groove; 126. fixing column; 13. second circular hole; 14. reinforcement block; 15. third circular hole; 16. adjustable buffer bracket; 161. second bolt; 162. threaded cylinder; 163. second bearing; 164. hollow plate; 165. first cylinder; 166. buffer spring; 167. buffer plate; 168. second cylinder. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] Embodiment 1:

[0030] Reference Figure 1-11A local pressurized oil cylinder comprises a cylinder body 1, a first oil inlet and outlet pipe 2 is fixedly connected to the left side of the cylinder body 1, a second oil inlet and outlet pipe 3 is fixedly connected to the left side of the cylinder body 1, a piston block 4 is arranged on the inner wall of the cylinder body 1, when the hydraulic oil enters the cylinder body 1 from the first oil inlet and outlet pipe 2, and the hydraulic oil in the cylinder body 1 is discharged through the second oil inlet and outlet pipe 3, the piston block 4 is moved downward by the hydraulic oil, when the hydraulic oil enters the cylinder body 1 from the second oil inlet and outlet pipe 3, and the hydraulic oil in the cylinder body 1 is discharged through the first oil inlet and outlet pipe 2, the piston block 4 is moved upward by the hydraulic oil, and a piston rod 5 is fixedly connected to the inner wall of the piston block 4, the surface of the piston rod 5 contacts the inner wall of the cylinder body 1, and a support plate 6 is fixedly connected to the upper surface of the piston rod 5, and the piston rod 5 The surface of the support plate 6 and the bottom of the support plate 6 are fixedly connected with a reinforcement block 14, and the reinforcement block 14 makes the support plate 6 and the piston rod 5 more firmly fixed. The upper surface of the support plate 6 is fixedly connected with a U-shaped plate 7, and the upper surface of the U-shaped plate 7 is provided with a first circular hole 8, and the inner wall of the first circular hole 8 is fitted with a plunger rod 9, and the plunger rod 9 is positioned through the first circular hole 8. Fixing grooves 10 are provided on the front and rear sides of the plunger rod 9, and strip holes 11 are provided on the left and right sides of the U-shaped plate 7. The inner walls of the strip holes 11, the inner walls of the fixing grooves 10 and the inner walls of the U-shaped plate 7 are all fitted with fixing brackets 12. A second circular hole 13 is provided on the upper surface of the U-shaped plate 7, and the inner wall of the second circular hole 13 is fixedly connected to the surface of the fixing bracket 12.

[0031] The fixing bracket 12 includes a nut 121, the inner wall of the nut 121 is threadedly connected with a first bolt 122, the surface of the first bolt 122 and the inner wall of the second circular hole 13 are fixedly connected with a first bearing 123, the front and rear sides of the nut 121 are fixedly connected with a hollow cylinder 124, the inner wall of the hollow cylinder 124 is in contact with the surface of the U-shaped plate 7, when the first bolt 122 rotates, the hollow cylinder 124 moves upward or downward through the cooperation of the first bolt 122 and the nut 121, and the left and right sides of the U-shaped plate 7 are provided with a strip groove 125, the inner wall of the fixing groove 10, the strip groove 125 and the inner wall of the fixing groove 10 are fixedly connected with the inner wall of the fixing groove 10. The inner wall of the groove 125 and the inner wall of the strip hole 11 are both fitted with a fixing column 126, the strip hole 11 is parallel to the horizontal plane, and the angle between the strip groove 125 and the horizontal plane is 30°. When the hollow cylinder 124 moves upward or downward, the fixing column 126 moves forward and backward through the cooperation of the strip hole 11 and the strip groove 125. At the same time, when the fixing column 126 contacts the fixing groove 10, the plunger rod 9 can be fixed on the support plate 6 through the cooperation of the fixing column 126 and the fixing groove 10. When the fixing groove 10 is separated from the fixing column 126, the plunger rod 9 can be directly separated from the support plate 6.

[0032] Embodiment 2:

[0033] Reference Figure 1-12 A third circular hole 15 is formed at the bottom of the cylinder body 1 , and an adjustable buffer bracket 16 is fixedly connected to the inner wall of the third circular hole 15 and the bottom of the cylinder body 1 .

[0034] The adjustable buffer bracket 16 includes a second bolt 161, a threaded barrel 162 is threadedly connected to the surface of the second bolt 161, the upper surface of the threaded barrel 162 is fixedly connected to the bottom of the cylinder body 1, a second bearing 163 is fixedly connected to the surface of the second bolt 161, a hollow plate 164 is fixedly connected to the surface of the second bearing 163, a first cylinder 165 is fixedly connected to the upper surface of the hollow plate 164, a buffer spring 166 is fixedly connected to the inner wall of the first cylinder 165, a buffer plate 167 is fixedly connected to the upper surface of the buffer spring 166, and the first cylinder 165 is fixedly connected to the inner wall of the first cylinder 165. 65 is fitted with a second cylinder 168, and the surface of the second cylinder 168 is fixedly connected to the inner wall of the third circular hole 15. Through the cooperation of the second bolt 161 and the threaded cylinder 162, the user can change the distance between the hollow plate 164 and the cylinder body 1 by turning the second bolt 161. At the same time, by adjusting the distance between the hollow plate 164 and the cylinder body 1, when the piston block 4 moves to the lowest point, the thrust of the piston block 4 of the buffer spring 166 is changed, thereby making the buffering capacity of the adjustable buffer bracket 16 on the piston block 4 adjustable as needed.

[0035] In the utility model, when the user uses the local pressurized oil cylinder, first connect the first inlet and outlet oil pipes 2 and the second inlet and outlet oil pipes 3 to the oil pump. When the hydraulic oil enters the cylinder body 1 from the first inlet and outlet oil pipes 2 and the hydraulic oil in the cylinder body 1 is discharged through the second inlet and outlet oil pipes 3, the piston block 4 is moved downward by the hydraulic oil, and the plunger rod 9 is moved downward. When the hydraulic oil enters the cylinder body 1 from the second inlet and outlet oil pipes 3 and the hydraulic oil in the cylinder body 1 is discharged through the first inlet and outlet oil pipes 2, the piston block 4 is moved upward by the hydraulic oil, and the plunger rod 9 is moved downward. When the user needs to adjust the number of plunger rods 9 on the support plate 6, first rotate the first bolt 122 to make the hollow The cylinder 124 moves upward with the cooperation of the first bolt 122 and the nut 121, and separates the fixing column 126 from the fixing groove 10 through the cooperation of the strip hole 11 and the strip groove 125. Then, the user changes the number of plunger rods 9 on the support plate 6 and aligns the fixing groove 10 with the fixing column 126. Then, by rotating the first bolt 122, the hollow cylinder 124 moves downward with the cooperation of the first bolt 122 and the nut 121, and contacts the fixing groove 10 through the cooperation of the strip hole 11 and the strip groove 125. At this time, the plunger rod 9 is fixed on the support plate 6 through the cooperation of the fixing column 126 and the fixing groove 10.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A local pressurized oil cylinder, comprising a cylinder body (1), characterized in that: The left side of the cylinder body (1) is fixedly connected to a first oil inlet and outlet pipe (2), the left side of the cylinder body (1) is fixedly connected to a second oil inlet and outlet pipe (3), the inner wall of the cylinder body (1) is fitted with a piston block (4), the inner wall of the piston block (4) is fixedly connected to a piston rod (5), the surface of the piston rod (5) is in contact with the inner wall of the cylinder body (1), the upper surface of the piston rod (5) is fixedly connected to a support plate (6), the upper surface of the support plate (6) is fixedly connected to a U-shaped plate (7), and the upper surface of the U-shaped plate (7) is provided with a first A circular hole (8), a plunger rod (9) is fitted on the inner wall of the first circular hole (8), a fixing groove (10) is provided on both the front and rear sides of the plunger rod (9), a strip hole (11) is provided on both the left and right sides of the U-shaped plate (7), a fixing bracket (12) is fitted on the inner wall of the strip hole (11), the inner wall of the fixing groove (10) and the inner wall of the U-shaped plate (7), a second circular hole (13) is provided on the upper surface of the U-shaped plate (7), and the inner wall of the second circular hole (13) is fixedly connected to the surface of the fixing bracket (12).

2. A local pressurized oil cylinder according to claim 1, characterized in that: The fixing bracket (12) comprises a nut (121), the inner wall of the nut (121) is threadedly connected to a first bolt (122), the surface of the first bolt (122) and the inner wall of the second circular hole (13) are fixedly connected to a first bearing (123), the front and rear sides of the nut (121) are fixedly connected to a hollow cylinder (124), the inner wall of the hollow cylinder (124) is in contact with the surface of the U-shaped plate (7), the left and right sides of the U-shaped plate (7) are provided with strip grooves (125), and the inner wall of the fixing groove (10), the inner wall of the strip groove (125) and the inner wall of the strip hole (11) are all fitted with fixing columns (126).

3. A local pressurized oil cylinder according to claim 2, characterized in that: The strip-shaped hole (11) is parallel to the horizontal plane, and the angle between the strip-shaped groove (125) and the horizontal plane is 30°.

4. A local pressurized oil cylinder according to claim 1, characterized in that: The surface of the piston rod (5) and the bottom of the support plate (6) are both fixedly connected with reinforcement blocks (14).

5. A local pressurized oil cylinder according to claim 1, characterized in that: A third circular hole (15) is provided at the bottom of the cylinder body (1), and an adjustable buffer bracket (16) is fixedly connected to the inner wall of the third circular hole (15) and the bottom of the cylinder body (1).

6. A local pressurized oil cylinder according to claim 5, characterized in that: The adjustable buffer bracket (16) comprises a second bolt (161), the surface of the second bolt (161) is threadedly connected to a threaded barrel (162), the upper surface of the threaded barrel (162) is fixedly connected to the bottom of the cylinder body (1), the surface of the second bolt (161) is fixedly connected to a second bearing (163), the surface of the second bearing (163) is fixedly connected to a hollow plate (164), the upper surface of the hollow plate (164) is fixedly connected to a first cylinder (165), the inner wall of the first cylinder (165) is fixedly connected to a buffer spring (166), the upper surface of the buffer spring (166) is fixedly connected to a buffer plate (167), the surface of the first cylinder (165) is fitted with a second cylinder (168), and the surface of the second cylinder (168) is fixedly connected to the inner wall of the third circular hole (15).

Images