Push rod structure

Abstract

The utility model discloses a push rod structure applied to the field of hydraulic push rods, which comprises a hydraulic push rod body, one side of the hydraulic push rod body is fixedly connected with a connecting partition plate, the upper surface of the connecting partition plate is fixedly connected with a guide vertical rod, the outer side of the telescopic end of the hydraulic push rod body is fixedly connected with a connecting sleeve, and the connecting sleeve is sleeved with the guide vertical rod. A plurality of positioning through holes are formed in the top of the outer side of the guide vertical rod, the hydraulic push rod positioning device can be matched with different positioning points of a hydraulic push rod, the positioning screw rod can be pulled out by taking down the positioning nut, the positioning screw rod is inserted into the positioning point, needing to be stopped, of the output end of the hydraulic push rod body, and the positioning nut is reset. When the hydraulic push rod body moves upwards, the connecting sleeve moves upwards along with the hydraulic push rod body, and when the connecting sleeve is close to the proximity switch, the hydraulic push rod body can be closed through the proximity switch, and the output end of the hydraulic push rod body is positioned in time.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic push rods, in particular to a push rod structure. Background Art

[0002] Hydraulic push rod is an important mechanical component. It is widely used in high pressure, heavy load, precision control and other fields. In construction projects, hydraulic push rods are usually used to support and stabilize buildings; in the aircraft manufacturing industry, hydraulic push rods are used in the process of flight control; in industrial production, hydraulic push rods can be used for lifting, positioning and moving of heavy machinery.

[0003] The displacement servo hydraulic cylinder in the common hydraulic push rod has a positioning function. When the displacement servo hydraulic cylinder is positioned, the signal output by the displacement sensor is generally processed in linear proportion to achieve precise displacement control. The cost of this type of hydraulic push rod is relatively high, and the adjustment of the positioning point of this type of hydraulic push rod is relatively inconvenient. Therefore, a push rod structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a push rod structure to solve the problem raised in the above background technology: when the displacement servo hydraulic cylinder is positioned, the signal output by the displacement sensor is generally processed in linear proportion to achieve precise displacement control, the cost of this type of hydraulic push rod is relatively high, and the adjustment of the positioning point of this type of hydraulic push rod is relatively inconvenient.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a push rod structure, including a hydraulic push rod body, one side of the hydraulic push rod body is fixedly connected to a connecting partition, the upper surface of the connecting partition is fixedly connected to a guide upright pole, the outer side of the telescopic end of the hydraulic push rod body is fixedly connected to a connecting sleeve, the connecting sleeve is sleeved with the guide upright pole, a plurality of positioning through holes are provided on the top of the outer side of the guide upright pole, a positioning component is inserted into one of the positioning through holes, both sides of the positioning component are connected to protective components, and the protective components are directly opposite to the connecting sleeve.

[0006] Preferably, the positioning assembly includes a mounting bent ring, a positioning screw is fixedly connected to the center of the inner wall of the mounting bent ring, the positioning screw is interlaced and connected to the positioning through hole at the opposite position, and a positioning nut is threadedly connected to one end of the positioning screw.

[0007] Preferably, one end of the positioning nut contacts the guide upright, a proximity switch is installed at the center of the lower surface of the mounting bend ring, the detection end of the proximity switch is directly opposite to the position of the connecting sleeve, and both sides of the upper surface of the mounting bend ring are connected to protective components.

[0008] Preferably, the protection assembly includes a protection connecting rod, one end of which extends to the lower surface of the mounting bend ring and is fixedly connected with a protection pad.

[0009] Preferably, the protective pad is located directly above the connecting sleeve, and a buffer spring is connected between the protective pad and the mounting bend ring.

[0010] Preferably, the other end of the protective connecting rod extends to the upper surface of the mounting bend ring and is fixedly connected with a connecting pad.

[0011] Technical effects and advantages of the utility model:

[0012] (1) The device can adapt to different positioning points of the hydraulic push rod by setting multiple positioning through holes. By removing the positioning nut, the positioning screw can be pulled out, and the positioning screw is inserted into the positioning point where the output end of the hydraulic push rod body needs to stop. The positioning nut is reset to limit the positioning component. When the hydraulic push rod body moves up, the connecting sleeve moves up accordingly. When the connecting sleeve approaches the proximity switch, the hydraulic push rod body can be closed by the proximity switch, and the output end of the hydraulic push rod body can be positioned in time, which solves the problem that when the displacement servo hydraulic cylinder is positioned, the signal output by the displacement sensor is generally processed in a linear proportional manner to achieve precise displacement control. The cost of this type of hydraulic push rod is relatively high, and the adjustment of the positioning point of this type of hydraulic push rod is relatively inconvenient;

[0013] (2) The device can prevent the connecting sleeve from moving up too much due to inertia when the output end of the hydraulic push rod body moves up, thereby preventing the proximity switch from colliding. When the connecting sleeve approaches the proximity switch, the connecting sleeve contacts the connecting sleeve through the protective pad, and the protective connecting rod is pushed up by the protective pad. The protective pad is buffered by the buffer spring. The upper part of the protective connecting rod can be supported by the provided connecting pad to prevent the protective connecting rod from separating from the mounting bent ring. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a schematic diagram of the connection structure between the partition and the positioning assembly in the utility model;

[0016] Figure 3 It is a schematic diagram of the connection structure between the positioning component and the protection component in the utility model.

[0017] In the figure: 1. Hydraulic push rod body; 2. Connecting partition; 3. Guide upright; 4. Connecting sleeve; 5. Positioning assembly; 501. Mounting bend ring; 502. Proximity switch; 503. Positioning screw; 504. Positioning nut; 6. Protection assembly; 601. Protection connecting rod; 602. Protection pad; 603. Buffer spring; 604. Connecting pad; 7. Positioning through hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-3 A push rod structure shown includes a hydraulic push rod body 1, one side of the hydraulic push rod body 1 is fixedly connected to a connecting partition 2, the upper surface of the connecting partition 2 is fixedly connected to a guide upright 3, the outer side of the telescopic end of the hydraulic push rod body 1 is fixedly connected to a connecting sleeve 4, the connecting sleeve 4 is sleeved with the guide upright 3, and a plurality of positioning through holes 7 are provided on the top of the outer side of the guide upright 3, a positioning component 5 is inserted into one of the positioning through holes 7, and both sides of the positioning component 5 are connected to protective components 6, and the protective component 6 is directly opposite to the connecting sleeve 4.

[0020] like Figure 1-3 A push rod structure shown in the figure, the positioning assembly 5 includes a mounting bend ring 501, a positioning screw 503 is fixedly connected to the center of the inner wall of the mounting bend ring 501, the positioning screw 503 is inserted and connected with the positioning through hole 7 which is directly opposite to the position, one end of the positioning screw 503 is threadedly connected with a positioning nut 504, one end of the positioning nut 504 is in contact with the guide upright 3, a proximity switch 502 is installed at the center of the lower surface of the mounting bend ring 501, and the detection end of the proximity switch 502 is directly opposite to the connecting sleeve 4. Both sides of the upper surface of the mounting bend ring 501 are connected to the protective component 6, and the protective component 6 includes a protective connecting rod 601, one end of the protective connecting rod 601 extends to the lower surface of the mounting bend ring 501 and is fixedly connected to a protective pad 602, the protective pad 602 is located directly above the connecting sleeve 4, a buffer spring 603 is connected between the protective pad 602 and the mounting bend ring 501, and the other end of the protective connecting rod 601 extends to the upper surface of the mounting bend ring 501 and is fixedly connected to a connecting pad 604.

[0021] The working principle of the utility model is as follows: by setting a plurality of positioning through holes 7, different positioning points of the hydraulic push rod can be adapted. By removing the positioning nut 504, the positioning screw 503 can be pulled out, and the positioning screw 503 is inserted into the positioning point where the output end of the hydraulic push rod body 1 needs to stop, and the positioning nut 504 is reset to limit the positioning component 5. When the hydraulic push rod body 1 moves up, the connecting sleeve 4 moves up accordingly. When the connecting sleeve 4 is close to the proximity switch 502, the hydraulic push rod body 1 can be closed by the proximity switch 502, and the output end of the hydraulic push rod body 1 can be controlled. When positioned, the protective component 6 is provided to prevent the connecting sleeve 4 from moving up too much due to inertia when the output end of the hydraulic push rod body 1 moves up, and collides with the proximity switch 502. When the connecting sleeve 4 is close to the proximity switch 502, it contacts the connecting sleeve 4 through the protective pad 602, and the protective connecting rod 601 is pushed up by the protective pad 602. The protective pad 602 is buffered by the buffer spring 603. The upper part of the protective connecting rod 601 can be supported by the provided connecting pad 604 to prevent the protective connecting rod 601 from separating from the mounting bent ring 501.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The standard parts used in the utility model can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A push rod structure, comprising a hydraulic push rod body (1), characterized in that: A connecting baffle (2) is fixedly connected to one side of the hydraulic push rod body (1), a guide upright rod (3) is fixedly connected to the upper surface of the connecting baffle (2), a connecting sleeve (4) is fixedly connected to the outer side of the telescopic end of the hydraulic push rod body (1), the connecting sleeve (4) is sleeved with the guide upright rod (3), a plurality of positioning through holes (7) are arranged on the top of the outer side of the guide upright rod (3), a positioning component (5) is inserted into one of the positioning through holes (7), and protective components (6) are connected to both sides of the positioning component (5), and the protective component (6) is directly opposite to the connecting sleeve (4).

2. A push rod structure according to claim 1, characterized in that: The positioning assembly (5) comprises a mounting curved ring (501), a positioning screw (503) being fixedly connected at the center of the inner wall of the mounting curved ring (501), the positioning screw (503) being inserted and connected with a positioning through hole (7) directly opposite to the position, and a positioning nut (504) being threadedly connected at one end of the positioning screw (503).

3. A push rod structure according to claim 2, characterized in that: One end of the positioning nut (504) is in contact with the guide upright (3); a proximity switch (502) is installed at the center of the lower surface of the mounting curved ring (501); the detection end of the proximity switch (502) is directly opposite to the connecting sleeve (4); and both sides of the upper surface of the mounting curved ring (501) are connected to protective components (6).

4. A push rod structure according to claim 2, characterized in that: The protection assembly (6) comprises a protection connecting rod (601), one end of which extends to the lower surface of the mounting bent ring (501) and is fixedly connected to a protection pad (602).

5. A push rod structure according to claim 4, characterized in that: The protective pad (602) is located directly above the connecting sleeve (4), and a buffer spring (603) is connected between the protective pad (602) and the mounting curved ring (501).

6. A push rod structure according to claim 4, characterized in that: The other end of the protective connecting rod (601) extends to the upper surface of the mounting bent ring (501) and is fixedly connected to a connecting pad (604).

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