Upper ejector rod structure

Abstract

The utility model discloses an upper ejector rod structure, and relates to the field of ejector rod structures, the upper ejector rod structure comprises a hydraulic oil tank, the upper end of the hydraulic oil tank is connected with an ejector rod group, the ejector rod group is composed of a plurality of moving rods, an oil hole pipe is connected in the hydraulic oil tank, the lower ends of the moving rods are connected with a moving plate, and the moving plate is connected with the hydraulic oil tank. The outer end of the moving rod is connected with a fixing plate, the lower end of the fixing plate is connected with a spring, the upper end of the moving rod is provided with an ejector head, the side end of the hydraulic oil tank is connected with an oil pipe, and the lower end of the oil pipe is connected with an air cylinder. Each moving rod in the ejector rod group is mutually independent and can be in contact with an object surface respectively, so that the ejector rod group can be attached to irregular surfaces such as an inclined surface, a concave surface and a convex surface, the device can act on the irregular object surface, and the problems that the jacking end of an existing ejector rod is fixed and can only act on the object surface which is matched with the ejector rod and has a single shape, and the device cannot act on the irregular object surface are solved. And the practicability is weak.

Description

Technical Field

[0001] The utility model relates to the technical field of push rod structures, in particular to an upper push rod structure. Background Art

[0002] The jack structure is a common mechanical structure that can extend to a certain length and is often used to support, lift, and fix objects. Common jack structures include: spiral jacks, pneumatic or hydraulic jacks, electric push rods, spring jacks, etc.

[0003] However, the existing ejector pin has a fixed ejection end and can only act on a surface of a single shape that matches the ejector pin. It cannot fit well on surfaces of other shapes, is difficult to use, and has poor practicality.

[0004] In order to solve this technical problem, the utility model proposes an upper push rod structure. Utility Model Content

[0005] The main purpose of the utility model is to provide an upper push rod structure, which can effectively solve the problems mentioned in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A top push rod structure includes a hydraulic oil tank, the upper end of the hydraulic oil tank is connected to a push rod group, the push rod group is composed of a plurality of movable rods, an oil hole tube is connected inside the hydraulic oil tank, the lower end of the movable rod is connected to a movable plate, the outer end of the movable rod is connected to a fixed plate, the lower end of the fixed plate is connected to a spring, the upper end of the movable rod is provided with a push head, the side end of the hydraulic oil tank is connected to an oil pipe, the lower end of the oil pipe is connected to a cylinder, the driving end of the cylinder is connected to a plug plate, and a pressure sensor is provided in the plug plate.

[0008] Preferably, the hydraulic oil tank is filled with hydraulic oil, the movable rod is located in the oil hole tube, the oil hole tube is connected to the hydraulic oil tank, the movable plate is slidably connected in the oil hole tube, and the movable plate and the oil hole tube are tightly connected.

[0009] Preferably, the movable rod is located inside the spring, the lower end of the spring is connected to the oil hole tube, the top is made of rubber, the hydraulic oil tank is connected to the oil pipe, the cylinder drive end is located in the oil pipe, and the plug plate is slidably connected in the oil pipe.

[0010] Preferably, a filling hole is provided at the upper end of the hydraulic oil tank, an oil drain hole is provided at the side end of the oil pipe, plug rods are provided in both the filling hole and the oil drain hole, and a sealing ring is provided at the outer end of the plug rod.

[0011] Preferably, the lower end of the hydraulic oil tank is connected to a jacking column, a threaded groove is provided in the jacking column, a threaded rod is connected to the inner thread of the jacking column, and the lower end of the threaded rod is connected to a turbine.

[0012] Preferably, a sleeve is provided at the outer end of the jacking column, a positioning bar is connected to the outer end of the jacking column, a positioning groove is provided in the sleeve, and the positioning bar is slidably connected in the positioning groove.

[0013] Preferably, the lower end of the casing is connected to a base plate, the turbine is rotatably connected to the base plate, a motor is connected to the base plate, a worm gear is connected to the motor driving end, the worm gear is engaged with the turbine, and a protective shell is provided on the base plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the utility model, through the cooperation of the push rod group, the oil pipe and the cylinder, each movable rod in the push rod group is independent of each other, so that they can contact the object surface respectively, so that the push rod group can fit irregular surfaces such as inclined surfaces, concave surfaces and convex surfaces, so that the device can act on irregular object surfaces, solving the problem of the existing push rod, whose lifting end is fixed and can only act on the object surface of a single shape that cooperates with it, and its practicality is poor.

[0016] In the present invention, by providing a filling hole and an oil drain hole, the hydraulic oil in the hydraulic oil tank can be replaced, thereby preventing the hydraulic oil from becoming sticky due to long-term use, which makes it difficult to use the device normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an upper push rod structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the upper end structure of an upper push rod structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the oil hole tube structure of an upper push rod structure of the utility model;

[0020] Figure 4 This is a schematic diagram of a threaded rod structure of an upper push rod structure of the utility model;

[0021] Figure 5 This is a schematic diagram of a housing structure of an upper push rod structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of an upper push rod structure of the utility model;

[0023] Figure 7 The utility model is a kind of upper push rod structure Figure 6 Schematic diagram of area A.

[0024] In the figure: 1. Hydraulic oil tank; 2. Push rod assembly; 3. Moving rod; 4. Oil hole tube; 5. Moving plate; 6. Fixed plate; 7. Spring; 8. Push head; 9. Oil pipe; 10. Cylinder; 11. Plug plate; 12. Pressure sensor; 13. Oil filling hole; 14. Oil drain hole; 15. Plug rod; 16. Lifting column; 17. Threaded rod; 18. Turbine; 19. Housing; 20. Positioning strip; 21. Positioning groove; 22. Bottom plate; 23. Motor; 24. Turbine; 25. Protective housing. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-7 As shown, an upper push rod structure includes a hydraulic oil tank 1, a lifting column 16 is connected to the lower end of the hydraulic oil tank 1, a threaded groove is provided in the lifting column 16, a threaded rod 17 is connected to the inner thread of the lifting column 16, a turbine 18 is connected to the lower end of the threaded rod 17, a casing 19 is provided at the outer end of the lifting column 16, a bottom plate 22 is connected to the lower end of the casing 19, the turbine 18 is rotatably connected to the bottom plate 22, a motor 23 is connected to the bottom plate 22, a vortex rod 24 is connected to the driving end of the motor 23, the vortex rod 24 is engaged with the turbine 18, and starting the motor 23 will drive the vortex rod 24 to rotate, and the rotation of the vortex rod 24 will act on the turbine 18, so that The turbine 18 drives the threaded rod 17 to rotate on the base plate 22. The rotation of the threaded rod 17 will act on the threaded groove opened in the jacking column 16. The outer end of the jacking column 16 is connected to a positioning bar 20, and a positioning groove 21 is opened in the sleeve 19. The positioning bar 20 is slidably connected in the positioning groove 21, so that the jacking column 16 can be constrained so that it can only move up and down along the positioning groove 21 and cannot rotate, so that the jacking column 16 can move up and down under the action of the threaded rod 17. A protective shell 25 is provided on the base plate 22. The turbine 18, worm rod 24, and motor 23 are all located in the protective shell 25, so that the protective shell 25 can protect them.

[0027] The hydraulic oil tank 1 is filled with hydraulic oil. The upper end of the hydraulic oil tank 1 is connected to a push rod group 2. The push rod group 2 consists of multiple moving rods 3, and each moving rod 3 does not interfere with each other. The hydraulic oil tank 1 is connected to an oil hole tube 4. The moving rod 3 is located in the oil hole tube 4. The oil hole tube 4 is connected to the hydraulic oil tank 1. The lower end of the moving rod 3 is connected to a moving plate 5. The moving plate 5 is slidably connected in the oil hole tube 4. The moving plate 5 and the oil hole tube 4 are tightly connected, and the connection gap between the two will not leak oil or air. The outer end of the moving rod 3 is connected to a fixed plate 6. The lower end of the fixed plate 6 is connected to a spring 7. The moving rod 3 is located inside the spring 7. The lower end of the spring 7 is connected to the oil hole tube 4. The spring 7 provides pushing for the fixed plate 6 The force is generated to lift the moving rod 3 to a certain height so that it can be adjusted downward when it contacts the surface of an object. A top head 8 is provided at the upper end of the moving rod 3. The top head 8 is made of rubber, so that it can play a certain protective role when it contacts the surface of an object. The side end of the hydraulic oil tank 1 is connected to an oil pipe 9. The hydraulic oil tank 1 is connected to the oil pipe 9, and its interior is also filled with hydraulic oil. The lower end of the oil pipe 9 is connected to a cylinder 10. The driving end of the cylinder 10 is located in the oil pipe 9. The driving end of the cylinder 10 is connected to a plug plate 11. The plug plate 11 is slidably connected to the oil pipe 9. The two are tightly connected. A pressure sensor 12 is provided in the plug plate 11. The pressure sensor 12 is used to detect the pressure exerted on the plug plate 11.

[0028] A filling hole 13 is provided at the upper end of the hydraulic oil tank 1. The filling hole 13 is used to fill the hydraulic oil tank 1 with hydraulic oil. The filling hole 13 is located at the highest point of the hydraulic oil tank 1 so that the hydraulic oil tank 1 can be filled with hydraulic oil. A drain hole 14 is provided at the side end of the oil pipe 9. The drain hole 14 is used to drain the hydraulic oil. The drain hole 14 is located at the lowest end of the oil pipe 9 so that all the hydraulic oil can be drained cleanly. Plug rods 15 are provided in the filling hole 13 and the drain hole 14. A sealing ring is provided at the outer end of the plug rod 15. The plug rod 15 and the sealing ring are used to seal the filling hole 13 and the drain hole 14 to prevent oil leakage and air leakage.

[0029] Move the device to the lower end of the object that needs to be lifted, start the motor 23 to drive the worm rod 24 to rotate, the rotation of the worm rod 24 acts on the turbine 18, so that the threaded rod 17 can be driven to rotate on the bottom plate 22, the rotation of the threaded rod 17 acts on the threaded groove in the lifting column 16, and the lifting column 16 will move upward under the constraint of the positioning bar 20 and the positioning groove 21, thereby lifting the hydraulic oil tank 1 and the jacking rod group 2. Each moving rod 3 in the jacking rod group 2 is independent of each other. When the top head 8 at the upper end of the moving rod 3 contacts the object surface, the moving rod 3 will be blocked and cannot rise anymore, and the spring 7 will be compressed, and the moving plate 5 will move in the oil hole tube 4 (the moving rod 3 that does not contact the object surface will continue to rise). In this way, the moving plate 5 will squeeze the hydraulic oil in the hydraulic oil tank 1. At this time, the cylinder 1 0 is in an unpressurized state, so that the moving plate 5 will squeeze the plug plate 11 through the hydraulic oil, and will press down the driving end of the cylinder 10 through the plug plate 11. During this period, the pressure sensor 12 detects the pressure on the plug plate 11. When most of the moving rods 3 are in contact with the object surface (the push rod group 2 is in contact with the lower end of the object surface), the pressure of the hydraulic oil on the plug plate 11 reaches a certain value. At this time, the cylinder 10 is pressurized to provide thrust for the plug plate 11, making it the same as the pressure it receives, keeping its position stationary, so that the overall shape of the hydraulic oil will be fixed. At this time, the upper end of the moving rod 3 is blocked by the object surface and cannot rise, and the lower end of the moving rod 3 is blocked by the hydraulic oil and cannot fall, thereby fixing the position of the moving rod 3, and enabling the lifting column 16 to lift the object through the hydraulic oil in the hydraulic oil tank 1 and the push rod group 2.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A push rod structure, comprising a hydraulic oil tank (1), characterized in that: The upper end of the hydraulic oil tank (1) is connected to a push rod group (2), and the push rod group (2) is composed of a plurality of moving rods (3). The hydraulic oil tank (1) is connected to an oil hole tube (4), the lower end of the moving rod (3) is connected to a moving plate (5), the outer end of the moving rod (3) is connected to a fixed plate (6), the lower end of the fixed plate (6) is connected to a spring (7), the upper end of the moving rod (3) is provided with a push head (8), the side end of the hydraulic oil tank (1) is connected to an oil pipe (9), the lower end of the oil pipe (9) is connected to a cylinder (10), the driving end of the cylinder (10) is connected to a plug plate (11), and a pressure sensor (12) is provided in the plug plate (11).

2. The upper push rod structure according to claim 1, characterized in that: The hydraulic oil tank (1) is filled with hydraulic oil, the movable rod (3) is located in the oil hole tube (4), the oil hole tube (4) is connected to the hydraulic oil tank (1), the movable plate (5) is slidably connected in the oil hole tube (4), and the movable plate (5) and the oil hole tube (4) are tightly connected.

3. The upper push rod structure according to claim 1, characterized in that: The moving rod (3) is located inside the spring (7), the lower end of the spring (7) is connected to the oil hole tube (4), the top head (8) is made of rubber, the hydraulic oil tank (1) is connected to the oil pipe (9), the driving end of the cylinder (10) is located in the oil pipe (9), and the plug plate (11) is slidably connected in the oil pipe (9).

4. The upper push rod structure according to claim 1, characterized in that: The upper end of the hydraulic oil tank (1) is provided with a filling hole (13), and the side end of the oil pipe (9) is provided with an oil drain hole (14). Both the filling hole (13) and the oil drain hole (14) are provided with plug rods (15), and the outer end of the plug rod (15) is provided with a sealing ring.

5. The upper push rod structure according to claim 1, characterized in that: The lower end of the hydraulic oil tank (1) is connected to a lifting column (16), a threaded groove is provided in the lifting column (16), the lifting column (16) is internally threadedly connected to a threaded rod (17), and the lower end of the threaded rod (17) is connected to a turbine (18).

6. The upper push rod structure according to claim 5, characterized in that: The outer end of the jacking column (16) is provided with a sleeve (19), the outer end of the jacking column (16) is connected with a positioning bar (20), a positioning groove (21) is provided in the sleeve (19), and the positioning bar (20) is slidably connected in the positioning groove (21).

7. The upper push rod structure according to claim 6, characterized in that: The lower end of the casing (19) is connected to a bottom plate (22), the turbine (18) is rotatably connected to the bottom plate (22), the bottom plate (22) is connected to a motor (23), the driving end of the motor (23) is connected to a worm rod (24), the worm rod (24) is engaged with the turbine (18), and a protective shell (25) is provided on the bottom plate (22).

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