Push rod structure of electric push rod

Abstract

The utility model discloses a push rod structure of an electric push rod, which relates to the technical field of electric push rods and comprises a push rod, a fixed seat is arranged at one end of the push rod, one side of a rotating seat is arranged at the outer side end of the fixed seat, one end of a connecting pin is arranged in the fixed seat in a penetrating manner, and limiting grooves are formed in the upper end and the lower end of the outer side of the fixed seat. Limiting grooves are formed in the inner side ends of the rotating seats, limiting protrusions are arranged at the positions, inside the limiting grooves, of the inner side ends of the rotating seats, a through groove is formed between the two limiting grooves, output ports are formed in the inner sides of the limiting grooves and the inner side of the through groove, and a lubricating groove is connected between the upper end of the fixed seat and the limiting groove at the upper end in a communicating mode. The strength of the connecting position between the front puller and the push rod is improved, the front puller structure has a certain axial rotation space, the axial relative rotation space between the connecting ball head, the lifting front puller and the fixed point is matched, and the movement space is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of electric push rods, and particularly relates to a push rod structure of an electric push rod. Background Art

[0002] An electric push rod is a mechanical device widely used in the field of automatic control. It is driven by an electric motor to convert rotational motion into linear motion. An electric push rod usually consists of a motor, a reducer, a transmission mechanism such as a lead screw or a push rod, and a guiding mechanism, and can achieve precise position control and force transmission. The push rod is the main moving and force-bearing component of the electric push rod. The traditional front-pulling structure of the push rod is independently and fixedly arranged at the front end of the push rod. The connection position between the front-pulling and the push rod is subjected to a large force, and the front-pulling structure does not have an axial rotation space. The axial relative rotation between the front-pulling and the fixed point can only be achieved through a connecting ball head, and the movement space is limited. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a push rod structure of an electric push rod, so as to solve the problems in the above background art that the traditional front-pulling structure of the push rod is independently and fixedly arranged at the front end of the push rod, the connection position between the front-pulling and the push rod is subjected to a large force, the front-pulling structure does not have an axial rotation space, and the axial relative rotation between the front-pulling and the fixed point can only be achieved through a connecting ball head, and the movement space is limited.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A push rod structure of an electric push rod, including a push rod, one end of the push rod is provided with a fixed seat, the outer side end of the fixed seat is provided with one side of a rotating seat, the other side of the rotating seat is provided with a connecting end, one end of a connecting pin penetrates through the inside of the fixed seat, and the other end of the connecting pin penetrates through the rotating seat and extends to the outside of the rotating seat. The rotating seat is rotationally connected with the fixed seat through the connecting pin. A fixing pin penetrates through the position corresponding to the connecting pin on the side of the rotating seat, and the fixing pin is inserted and connected with the connecting pin. The upper and lower ends on the outside of the fixed seat are provided with limiting grooves, and limiting protrusions are arranged inside the limiting grooves at the inner side end of the rotating seat. A through groove is opened between the two limiting grooves, output ports are opened on the inner sides of the limiting grooves and the through groove, and a lubricating groove is connected and communicated between the upper end of the fixed seat and the upper limiting groove.

[0005] Preferably, a threaded connection cylinder is arranged inside the push rod on the side of the fixed seat close to the push rod. The threaded connection cylinder is fixedly connected with the push rod through threads, and the connecting pin is arranged inside the threaded connection cylinder.

[0006] Preferably, a clamping end is arranged at the inner side end of the connecting pin, and the clamping end is clamped with the fixed seat.

[0007] Preferably, the limiting protrusion is rotatably connected to the limiting groove along the axis of the connecting pin.

[0008] Preferably, the inner end of the output port abuts against the outer surface of the connecting pin.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: On the basis of the traditional push rod structure in which the front pull structure is independently and fixedly arranged at the front end of the push rod, the strength of the connection position between the front pull and the push rod is improved. The front pull structure has a certain axial rotation space, which matches the connecting ball head, improves the axial relative rotation space between the front pull and the fixed point, and expands the movement space. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is an axonometric exploded view of the main structure of the present utility model;

[0011] Figure 2 is an axonometric view of the main structure of the present utility model;

[0012] Figure 3 is an axonometric sectional view of the main structure of the present utility model;

[0013] Figure 4 is a front view sectional view of the main structure of the present utility model;

[0014] Figure 5 is a front view structural schematic diagram of the present utility model.

[0015] In the figure: 1 - push rod, 2 - fixed seat, 3 - rotating seat, 4 - connecting end, 5 - connecting pin, 6 - fixing pin, 7 - limiting groove, 8 - limiting protrusion, 9 - through groove, 10 - output port, 11 - lubricating groove, 12 - threaded connection cylinder, 13 - clamping end. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-5, the present utility model provides a push rod structure of an electric push rod, including a push rod 1. One end of the push rod 1 is provided with a fixed seat 2. One side of the outer end of the fixed seat 2 is provided with one side of a rotating seat 3. The other side of the rotating seat 3 is provided with a connecting end 4. One end of a connecting pin 5 penetrates through the inside of the fixed seat 2. The other end of the connecting pin 5 penetrates through the rotating seat 3 and extends to the outside of the rotating seat 3. The rotating seat 3 is rotationally connected to the fixed seat 2 through the connecting pin 5. A fixing pin 6 penetrates through the position of the rotating seat 3 corresponding to the connecting pin 5 on the side. The fixing pin 6 is inserted and connected with the connecting pin 5. Limiting grooves 7 are provided at the upper and lower ends on the outside of the fixed seat 2. Limiting protrusions 8 are provided inside the rotating seat 3 and inside the limiting grooves 7. A through groove 9 is opened between the two limiting grooves 7. Output ports 10 are opened on the inner sides of the limiting grooves 7 and the through groove 9. A lubricating groove 11 is connected and communicated between the upper end of the fixed seat 2 and the upper limiting groove 7.

[0018] During use, the fixed seat 2 is fixedly arranged at the outer end of the push rod 1. The rotating seat 3 is rotationally connected to the outside of the fixed seat 2 through the connecting pin 5. The rotating seat 3 is fixedly connected to the outside of the connecting pin 5 through the fixing pin 6, so that the rotating seat 3 can rotate under the support of the fixed seat 2. A connecting end 4 is arranged at the outer end of the rotating seat 3. The push rod 1 is connected to the external device structure through the connecting end 4. Limiting grooves 7 are opened on the outside of the fixed seat 2. Limiting protrusions 8 are arranged inside the rotating seat 3. The limiting protrusions 8 are clamped into the inside of the limiting grooves 7 to limit the rotation angle of the rotating seat 3 on the fixed seat 2. A through groove 9 is opened between the two limiting grooves 7. Lubricating oil is injected into the upper limiting groove 7 through the lubricating groove 11. The lubricating oil is input into the lower limiting groove 7 through the through groove 9. Output ports 10 are opened on the inner sides of the limiting grooves 7 and the through groove 9. The lubricating oil is output to the outer surface of the connecting pin 5 through the output ports 10 to ensure the rotation smoothness of the rotating seat 3 relative to the fixed seat 2.

[0019] On one side of the fixed seat 2 close to the push rod 1 and inside the push rod 1, there is a threaded connection cylinder 12. The threaded connection cylinder 12 is fixedly connected to the push rod 1 through threads. The connecting pin 5 is arranged inside the threaded connection cylinder 12. The fixed seat 2 is fixedly arranged at the outer end of the push rod 1 through the threaded connection cylinder 12 to ensure the connection strength between the fixed seat 2 and the push rod 1.

[0020] A clamping end 13 is arranged at the inner end of the connecting pin 5. The clamping end 13 is clamped with the fixed seat 2. By arranging the clamping end 13 at the inner side of the connecting pin 5 and clamping the clamping end 13 with the fixed seat 2, it is ensured that the connecting pin 5 will not fall off the fixed seat 2.

[0021] The limiting protrusion 8 is rotatably connected to the limiting groove 7 along the axis of the connecting pin 5. By the engagement of the limiting groove 7 and the limiting protrusion 8, the rotation angle of the rotating seat 3 is restricted.

[0022] The inner end of the output port 10 abuts against the outer surface of the connecting pin 5, and lubricating oil is output to the connecting pin 5 through the output port 10 to lubricate the connecting pin 5.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A push rod structure of an electric push rod, characterized in that: The invention comprises a push rod (1), one end of which is provided with a fixed seat (2), the outer end of which is provided with one side of a rotating seat (3), the other side of which is provided with a connecting end (4), the interior of which is provided with one end of a connecting pin (5), the other end of which is provided with a connecting pin (5) passing through the rotating seat (3) and extending outward from the rotating seat (3), the rotating seat (3) being rotatably connected to the fixed seat (2) through the connecting pin (5), the side of which is connected to the connecting pin (5) ) is provided at a position corresponding to the first and second limit grooves (7), the fixing pin (6) is connected with the connecting pin (5) by plugging, the upper and lower ends of the outer side of the fixing seat (2) are provided with limit grooves (7), the inner end of the rotating seat (3) and the inside of the limit groove (7) are provided with a limit protrusion (8), a through groove (9) is provided between the two limit grooves (7), the inner sides of the limit groove (7) and the through groove (9) are provided with an output port (10), and a lubrication groove (11) is connected between the upper end of the fixing seat (2) and the limit groove (7) at the upper end.

2. The push rod structure of an electric push rod according to claim 1, characterized in that: A threaded connection tube (12) is provided on one side of the fixing seat (2) close to the push rod (1) and inside the push rod (1); the threaded connection tube (12) is fixedly connected to the push rod (1) via threads, and the connecting pin (5) is arranged inside the threaded connection tube (12).

3. The push rod structure of an electric push rod according to claim 1, characterized in that: The inner end of the connecting pin (5) is provided with a clamping end (13), and the clamping end (13) is clamped with the fixing seat (2).

4. The push rod structure of an electric push rod according to claim 1, characterized in that: The limiting protrusion (8) is rotatably connected to the limiting groove (7) along the axis of the connecting pin (5).

5. The push rod structure of an electric push rod according to claim 1, characterized in that: The inner end of the output port (10) abuts against the outer surface of the connecting pin (5).

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