Push rod with stably installed end cover

By installing front and rear end caps on the cylinder body of the push rod and connecting them with hexagonal head screws, along with reinforcing plates and mounting sleeves, combined with dust seals and anti-collision plates, the problem of loose end caps was solved, achieving stable installation and sealing of the end caps and ensuring normal piston operation.

CN223553156UActive Publication Date: 2025-11-14SUZHOU LVTESIWEI AUTOMATION TECH CO LTD
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Patent Information

Application Number
CN202423107149.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-11-14
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

The end caps on the existing push rods are not installed stably and are prone to loosening, affecting their use.

Method used

By installing a front end cap and a rear end cap on the cylinder body of the push rod and connecting them with hexagon socket head cap screws, combined with a reinforcing plate and mounting sleeve, the stability of the end cap is enhanced; at the same time, dust rings and front anti-collision plates are used for sealing and protection to prevent dust from entering and affecting the piston's operation.

Benefits of technology

This ensures stable installation of the end caps, prevents loosening, increases sealing, and guarantees normal extension and retraction of the piston.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a push rod with an end cover installed stably, which relates to the technical field of push rods and comprises a cylinder body and an installation assembly, a rear end sleeve is arranged at the lower end of the cylinder body, a rear end cover is installed at the lower end of the rear end sleeve through a hexagon socket cap screw, and the installation assembly used for installing the end cover stably is arranged at the upper end of the cylinder body. The mounting assembly comprises a front end cover, a reinforcing plate, a fixing hole and a mounting sleeve, the reinforcing plate is mounted on the outer side of the front end cover through small screws, the fixing hole is formed in the outer side of the top of the front end cover, and the mounting sleeve is connected to the middle of the top of the front end cover. According to the push rod with the stably-installed end covers, the front end cover and the rear end cover are installed at the end of a cylinder body through connection of the hexagon socket head cap screws, the end covers are stably and firmly installed through the four sets of hexagon socket head cap screws, and the reinforcing plates play a reinforcing role on the two sides of the connecting position of the front end cover and the cylinder body; loosening of the front end cover caused by loosening of the screws is avoided, and the installation stability of the end cover is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of push rod technology, specifically a push rod with a stable end cap installation. Background Technology

[0002] A push rod, also known as a linear actuator, is a new type of linear actuator mainly composed of a motor push rod and a control device. It can be considered an extension of the structure of a rotary motor.

[0003] However, the existing push rod end cap has poor installation stability and is prone to loosening due to repeated use, affecting its use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a push rod that provides stable end cap installation. Utility Model Content

[0005] The purpose of this invention is to provide a push rod with stable end cap installation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a push rod for stable end cap installation, comprising a cylinder and an installation assembly. The lower end of the cylinder is provided with a rear end sleeve, and the lower end of the rear end sleeve is fitted with a rear end cap by an internal hexagonal head screw. The installation assembly for stable end cap installation is located at the upper end of the cylinder, and the installation assembly includes a front end cap, a reinforcing plate, a fixing hole, and an installation sleeve. The outer side of the front end cap is fitted with a reinforcing plate by a small screw, and the outer side of the top of the front end cap is fitted with a fixing hole. The middle part of the top of the front end cap is connected to the installation sleeve.

[0007] Furthermore, the front cover and the rear cover are symmetrically distributed about the cylinder body, and the fixing holes are equidistantly distributed in a ring about the center point of the front cover.

[0008] Furthermore, a piston is provided inside the mounting sleeve, and an oilless bearing is connected to the lower end of the piston.

[0009] Furthermore, the oilless bearing is provided with a rear axle baffle on its exterior, and a guide key is connected to the lower end of the interior of the rear axle baffle.

[0010] Furthermore, a hollow tube is externally connected to the lower end of the guide key, and a dustproof ring is provided at the end of the hollow tube.

[0011] Furthermore, a coupling seat is provided below the dustproof ring, and an auxiliary component for auxiliary protection is provided on the top of the mounting sleeve.

[0012] Furthermore, the auxiliary component includes a front tooth and a front anti-collision plate, and the front tooth is provided with a front anti-collision plate on its exterior.

[0013] Furthermore, the mounting sleeve and the front anti-collision piece are tightly fitted together, and the front anti-collision piece is circular in shape.

[0014] This utility model provides a push rod with stable end cap installation, which has the following advantages:

[0015] 1. In this utility model, both the front and rear end caps are installed at the end of the cylinder body by connecting them with hexagon socket head cap screws. The four sets of hexagon socket head cap screws ensure that the end caps are installed stably and firmly. The reinforcing plates on both sides of the connection between the front end cap and the cylinder body play a reinforcing role, preventing the front end cap from loosening due to the loosening of the screws, and further increasing the stability of the end cap installation. The annular mounting sleeve plays a guiding role for the piston.

[0016] 2. This utility model uses a dustproof ring at the connection between the cylinder body and the rear sleeve to increase the sealing performance, preventing dust and other contaminants from entering the cylinder body and accumulating over a long period of time, which would affect the piston's operation. The front teeth on the mounting sleeve provide positional assistance, preventing the end of the mounting sleeve from being blocked and affecting the piston's extension and retraction. The front anti-collision plate provides end protection for the mounting sleeve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall assembly structure of a push rod with stable end cap installation according to this utility model;

[0018] Figure 2 This is an exploded view of the overall structure of a push rod with stable end cap installation according to this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the overall structure of a push rod with stable end cap installation according to this utility model.

[0020] In the diagram: 1. Cylinder block; 2. Rear end sleeve; 3. Mounting assembly; 301. Front end cover; 302. Reinforcing plate; 303. Fixing hole; 304. Mounting sleeve; 4. Rear end cover; 5. Piston; 6. Oil-free bearing; 7. Rear axle baffle; 8. Guide key; 9. Hollow tube; 10. Dust seal; 11. Coupling seat; 12. Auxiliary assembly; 1201. Front end thread; 1202. Front end anti-collision plate. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figure 1 and Figure 3As shown, a push rod for stable end cap mounting includes a cylinder body 1 and a mounting assembly 3. A rear end sleeve 2 is provided at the lower end of the cylinder body 1, and a rear end cap 4 is mounted on the lower end of the rear end sleeve 2 using hexagon socket head cap screws. The mounting assembly 3 for stable end cap mounting is located at the upper end of the cylinder body 1, and includes a front end cap 301, a reinforcing plate 302, a fixing hole 303, and a mounting sleeve 304. The reinforcing plate 302 is mounted on the outer side of the front end cap 301 using small screws. The reinforcing plate 302 reinforces the connection between the front end cap 301 and the cylinder body 1 on both sides, preventing damage due to loose screws. The loosening of the front cover 301 further increases the stability of the end cover installation. The front cover 301 and the rear cover 4 are symmetrically distributed about the cylinder body 1, and the fixing holes 303 are equidistantly distributed in a ring about the center point of the front cover 301. The front cover 301 and the rear cover 4 are both installed at the end of the cylinder body 1 with the connection of the internal hexagonal head screws. The four sets of internal hexagonal head screws make the end cover installation stable and firm. The fixing holes 303 are installed on the outer side of the top of the front cover 301, and the mounting sleeve 304 is connected to the middle of the top of the front cover 301. The annular mounting sleeve 304 guides the piston 5.

[0023] like Figure 2 As shown, the piston 5 is installed inside the mounting sleeve 304, and the lower end of the piston 5 is connected to an oilless bearing 6. A rear axle baffle 7 is installed outside the oilless bearing 6, and a guide key 8 is connected to the lower end of the rear axle baffle 7. A hollow tube 9 is connected to the lower end of the guide key 8, and a dust seal 10 is installed at the end of the hollow tube 9. The dust seal 10 increases the sealing at the connection between the cylinder body 1 and the rear end sleeve 2, preventing dust from entering the cylinder body 1 and accumulating over time, which could affect the use of the piston 5. A coupling seat 11 is installed below the dust seal 10. The top of 04 is provided with an auxiliary component 12 for auxiliary protection. The auxiliary component 12 includes a front tooth 1201 and a front anti-collision plate 1202. The front anti-collision plate 1202 is provided on the outside of the front tooth 1201. The front tooth 1201 plays a positional assistance role on the mounting sleeve 304 to prevent the end of the mounting sleeve 304 from being blocked and affecting the extension and retraction of the piston 5. The mounting sleeve 304 and the front anti-collision plate 1202 are tightly fitted, and the front anti-collision plate 1202 is circular in shape. The front anti-collision plate 1202 plays a role in end protection for the mounting sleeve 304.

[0024] In summary, the push rod for stable installation of this end cap is first based on... Figures 1-3As shown in the diagram, during installation, the front cover 301 is assembled and connected to the top of the cylinder body 1 by using four sets of internal hexagonal head screws through the corresponding fixing holes 303. At this time, the four sets of internal hexagonal head screws ensure that the end cover is installed stably and firmly. The reinforcing plate 302 is installed on both sides of the connection position between the front cover 301 and the cylinder body 1 to reinforce it and prevent the front cover 301 from loosening due to loose screws, further increasing the stability of the end cover installation. During use, the coupling seat 11 is connected to the motor to control the piston 5 to move and extend inside the mounting sleeve 304, providing power for pushing objects. During use, it is necessary to pay attention to whether the end of the mounting sleeve 304 is blocked. During inspection, the front teeth 1201 can be used for position assistance. At the same time, the front anti-collision plate 1202 provides end protection for the mounting sleeve 304. During long-term use, the dust ring 10 at the connection position between the cylinder body 1 and the rear sleeve 2 increases the sealing and prevents dust and other substances from entering the cylinder body 1 and affecting the use of the piston 5 after long-term accumulation.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A push rod with stable end cap mounting, comprising a cylinder body (1) and a mounting assembly (3), characterized in that, The lower end of the cylinder body (1) is provided with a rear end sleeve (2), and the lower end of the rear end sleeve (2) is installed with a rear end cover (4) by an internal hexagonal head screw. The mounting assembly (3) for the stable installation of the end cover is provided at the upper end of the cylinder body (1), and the mounting assembly (3) includes a front end cover (301), a reinforcing plate (302), a fixing hole (303) and a mounting sleeve (304). The outer side of the front end cover (301) is installed with a reinforcing plate (302) by a small screw, and the outer side of the top of the front end cover (301) is installed with a fixing hole (303). The middle part of the top of the front end cover (301) is connected with a mounting sleeve (304).

2. The push rod for stable end cap installation according to claim 1, characterized in that, The front cover (301) and the rear cover (4) are symmetrically distributed about the cylinder body (1), and the fixing holes (303) are equidistantly distributed in a ring about the center point of the front cover (301).

3. The push rod for stable end cap installation according to claim 1, characterized in that, The mounting sleeve (304) is equipped with a piston (5), and the lower end of the piston (5) is connected to an oilless bearing (6).

4. The push rod for stable end cap installation according to claim 3, characterized in that, The oilless bearing (6) is provided with a rear axle baffle (7) on its exterior, and a guide key (8) is connected to the lower end of the interior of the rear axle baffle (7).

5. A push rod for stable end cap installation according to claim 4, characterized in that, The lower end of the guide key (8) is externally connected to a hollow tube (9), and the end of the hollow tube (9) is provided with a dustproof ring (10).

6. A push rod for stable end cap installation according to claim 5, characterized in that, A coupling seat (11) is provided below the dustproof ring (10), and an auxiliary component (12) for auxiliary protection is provided on the top of the mounting sleeve (304).

7. A push rod for stable end cap installation according to claim 6, characterized in that, The auxiliary component (12) includes a front tooth (1201) and a front anti-collision plate (1202), and the front tooth (1201) is provided with a front anti-collision plate (1202) on its exterior.

8. A push rod for stable end cap installation according to claim 7, characterized in that, The mounting sleeve (304) and the front anti-collision piece (1202) are tightly fitted together, and the front anti-collision piece (1202) is circular in shape.