Electric push rod convenient for stroke adjustment

Abstract

The utility model discloses an electric push rod convenient for stroke adjustment, which comprises a shell, a cylinder body is fixedly arranged at the top of the shell, a second piston in sliding connection with the inner wall of the cylinder body is arranged in the cylinder body, a push rod main body is fixedly arranged at the top of the second piston, and a power mechanism connected with the cylinder body is arranged in the shell. An adjusting mechanism is arranged on the power mechanism, and the power mechanism comprises two barrels fixedly mounted on the inner wall of one side of the shell. By arranging the power mechanism and the adjusting mechanism, the ejector rod can be close to or away from the adjusting block in the inclined state, the first piston can move rightwards or leftwards, and therefore the push rod body can ascend or descend, and meanwhile the inclination angle of the adjusting block and the movement distance of the first piston can be changed; and the stroke distance of the push rod main body is adjusted, use is convenient, use requirements under different conditions can be met, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric push rods, in particular to an electric push rod which is convenient for adjusting the stroke. Background Art

[0002] Electric linear actuators can be used as actuators in various simple or complex process flows to achieve remote control, centralized control or automatic control.

[0003] However, when the existing electric push rod is in use, the travel distance of the push rod body is mostly fixed, which is difficult to adjust and difficult to meet the use requirements in different situations. It is inconvenient to use, has a small scope of application, and has poor practicality. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide an electric push rod that is easy to adjust the stroke.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An electric push rod that is easy to adjust the stroke includes a shell, a cylinder body is fixedly installed on the top of the shell, a second piston is provided inside the cylinder body and is slidably connected to the inner wall of the cylinder body, a push rod body is fixedly installed on the top of the second piston, a power mechanism connected to the cylinder body is provided in the shell, and an adjustment mechanism is provided on the power mechanism.

[0007] Preferably, the power mechanism includes two cylinders fixedly mounted on the inner wall of one side of the shell, one end of each of the two cylinders is penetrated by a mounting rod slidably connected thereto, and one end of each of the two mounting rods located in the cylinder is fixedly mounted with a first piston slidably connected to the inner wall of the cylinder, and each of the two cylinders is provided with a connecting pipe connected to the interior thereof, and one end of each of the two connecting pipes connected to the cylinder is located below the first piston, and one end of each of the two mounting rods located outside the cylinder is fixedly mounted with the same mounting block.

[0008] The cam is fixedly mounted on one end of the drive shaft of the second motor, and the cam is installed in a fixed manner on the other end of the drive shaft to move the second end of the motor to the left of the second motor.

[0009] Preferably, one end of the two connecting pipes connected to the cylinder is located on a side of the first piston away from the mounting rod.

[0010] Preferably, one end of the two connecting pipes away from the cylindrical body is communicated with the cylinder body.

[0011] Preferably, the push rod is located on a side of the mounting block away from the cylinder.

[0012] Beneficial effects of the utility model:

[0013] By setting up a power mechanism and an adjustment mechanism, the push rod can be moved closer to or away from the adjustment block in the tilted state, and the first piston can be moved to the right or left, so that the push rod body can be raised or lowered. At the same time, the inclination angle of the adjustment block and the movement distance of the first piston can be changed to adjust the stroke distance of the push rod body. It is easy to use, can meet the usage requirements of different situations, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of an electric push rod that is easy to adjust the stroke proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the push rod body of the utility model in the extended state;

[0016] Figure 3 This is a schematic diagram of the planar structure of an electric push rod that is convenient for adjusting the stroke proposed by the utility model;

[0017] Figure 4 It is a schematic diagram of the planar structure inside the cylinder of the utility model.

[0018] In the figure: 1 housing, 2 cylinder body, 3 push rod body, 4 connecting pipe, 5 cover body, 6 first motor, 7 first threaded rod, 8 push rod, 9 slider, 10 adjustment block, 11 connecting rod, 12 second motor, 13 displacement block, 14 second threaded rod, 15 displacement groove, 16 mounting rod, 17 first piston, 18 cylinder body, 19 second piston, 20 mounting block, 21 spring. DETAILED DESCRIPTION

[0019] 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 the embodiments.

[0020] Reference Figures 1-4 , an electric push rod for adjusting the stroke, comprising a shell 1, a cylinder 2 is fixedly mounted on the top of the shell 1, a second piston 19 is provided inside the cylinder 2 and is slidably connected to its inner wall, a push rod body 3 is fixedly mounted on the top of the second piston 19, a power mechanism connected to the cylinder 2 is provided in the shell 1, the power mechanism comprises two cylinders 18 fixedly mounted on the inner wall of one side of the shell 1, one end of the two cylinders 18 is penetrated by a mounting rod 16 slidably connected to it, and one end of the two mounting rods 16 located in the cylinder 18 is fixedly mounted with a first piston 17 slidably connected to the inner wall of the cylinder 18, and the two cylinders 18 are provided with a connecting pipe 4 connected to the interior thereof, one end of the two connecting pipes 4 connected to the cylinder 2 is located below the first piston 17, and one end of the two mounting rods 16 located outside the cylinder 18 is fixedly mounted with the same mounting block 20, and one end of the two connecting pipes 4 connected to the cylinder 18 is located on the side of the first piston 17 away from the mounting rod 16, and the ends of the two connecting pipes 4 away from the cylinder 18 are connected to the cylinder 2;

[0021] The power mechanism is provided with an adjustment mechanism, which includes an adjustment block 10 on a side wall of the cylinder 18 away from the mounting block 20 that is rotatably connected, and a displacement groove 15 is provided on a side wall of the mounting block 20 close to the adjusting block 10. A second threaded rod 14 is rotatably connected between the inner walls at both ends of the displacement groove 15, and a displacement block 13 is fixedly mounted on the outer wall of the second threaded rod 14 and is slidably connected to the inner wall of the displacement groove 15. The displacement block 13 is rotatably connected to one end of the connecting rod 11 on a side wall close to the adjusting block 10, and the other end of the connecting rod 11 is rotatably connected to the bottom of the adjusting block 10. The outer wall of one end of the mounting block 20 is fixedly mounted on the outer wall of the second threaded rod 14 and is slidably connected to the inner wall of the displacement groove 15. A second motor 12 is fixedly mounted on the wall, one end of the second threaded rod 14 passes through the inner wall of one end of the displacement slot 15 and is fixedly connected to the output shaft of the second motor 12, a cover body 5 is fixedly mounted on an outer side wall of the shell 1, a first motor 6 is fixedly mounted on the inner wall of the end portion of the cover body 5, a first threaded rod 7 is fixedly connected to the output shaft of the first motor 6, a push rod 8 is threadedly mounted on the first threaded rod 7, and sliders 9 that are slidably connected to the inner wall of the cover body 5 are provided on both side walls of the push rod 8, the push rod 8 passes through one side outer wall of the shell 1 and is slidably connected thereto, and the push rod 8 is located on the side of the mounting block 20 away from the cylinder 18.

[0022] When the utility model is used, the first motor 6 is started to rotate the first threaded rod 7. When the first threaded rod 7 rotates, the slider 9 guides the push rod 8 so that it cannot rotate, thereby causing the push rod 8 to move in the direction close to the adjustment block 10. Since the adjustment block 10 is in an inclined state, the movement of the push rod 8 will counteract the adjustment block 10, thereby enabling the adjustment block 10, the mounting block 20, the mounting rod 16 and the first piston 17 to be attached. Figure 3 When the state moves to the right, the spring 21 is compressed, thereby squeezing the hydraulic oil on the right side of the first piston 17 in the cylinder 18 into the cylinder 2, thereby causing the second piston 19 and the push rod body 3 to move upward. When the push rod 8 slides in the direction close to the cover body 5, the elastic force generated by the compression of the spring 21 can cause the first piston 17 and the mounting block 20 to move to the left and return to the initial state, and the hydraulic oil in the cylinder 2 will be sucked into the cylinder 18. When the stroke needs to be adjusted, the second threaded rod 14 is rotated by starting the second motor 12, so that the displacement block 13 can be moved. By setting the connecting rod 11, the inclination angle of the adjusting block 10 can be changed, and then when the push rod 8 and the adjusting block 10 contact each other, the distance that the mounting block 20 and the first piston 17 move to the right is changed, and finally the distance that the second piston 19 and the push rod body 3 move upward is changed, thereby realizing the adjustment of the stroke.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electric push rod for easy stroke adjustment, comprising a housing (1), characterized in that: A cylinder body (2) is fixedly mounted on the top of the housing (1), a second piston (19) is provided inside the cylinder body (2) and is slidably connected to the inner wall thereof, a push rod body (3) is fixedly mounted on the top of the second piston (19), a power mechanism connected to the cylinder body (2) is provided inside the housing (1), and an adjustment mechanism is provided on the power mechanism.

2. The electric push rod for easy stroke adjustment according to claim 1, characterized in that: The power mechanism comprises two cylinders (18) fixedly mounted on the inner wall of one side of the housing (1), one end of each of the two cylinders (18) is penetrated by a mounting rod (16) slidably connected thereto, one end of each of the two mounting rods (16) located inside the cylinder (18) is fixedly mounted with a first piston (17) slidably connected to the inner wall of the cylinder (18), and each of the two cylinders (18) is provided with a connecting pipe (4) connected to the interior thereof, one end of each of the two connecting pipes (4) connected to the cylinder (2) is located below the first piston (17), and one end of each of the two mounting rods (16) located outside the cylinder (18) is fixedly mounted with the same mounting block (20).

3. The electric push rod for easy stroke adjustment according to claim 2, characterized in that: The adjusting mechanism comprises an adjusting block (10) on a side wall of a rotatably connected mounting block (20) away from the cylinder (18); a displacement groove (15) is provided on a side wall of the mounting block (20) close to the adjusting block (10); a second threaded rod (14) is rotatably connected between the inner walls at both ends of the displacement groove (15); a displacement block (13) is fixedly mounted on the outer side wall of the second threaded rod (14) and is slidably connected to the inner wall of the displacement groove (15); one end of a connecting rod (11) is rotatably connected to the side wall of the displacement block (13) close to the adjusting block (10); the other end of the connecting rod (11) is rotatably connected to the bottom of the adjusting block (10); A second motor (12) is fixedly mounted on the outer wall at one end, one end of the second threaded rod (14) passes through the inner wall at one end of the displacement slot (15) and is fixedly connected to the output shaft of the second motor (12), a cover body (5) is fixedly mounted on an outer wall of the housing (1), a first motor (6) is fixedly mounted on the inner wall at the end of the cover body (5), a first threaded rod (7) is fixedly connected to the output shaft of the first motor (6), a push rod (8) is threadedly sleeved on the first threaded rod (7), and sliders (9) slidably connected to the inner wall of the cover body (5) are provided on both side walls of the push rod (8), and the push rod (8) passes through one side outer wall of the housing (1) and is slidably connected thereto.

4. The electric push rod for easy stroke adjustment according to claim 2, characterized in that: One end of the two connecting pipes (4) communicating with the cylinder (18) is located on the side of the first piston (17) away from the mounting rod (16).

5. The electric push rod with easy stroke adjustment according to claim 2, characterized in that: One end of the two connecting pipes (4) away from the barrel (18) is connected to the cylinder (2).

6. The electric push rod with easy stroke adjustment according to claim 3, characterized in that: The push rod (8) is located on a side of the mounting block (20) away from the cylinder (18).

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