High-load impact-resistant pneumatic rod structure

Abstract

The utility model discloses a high-load impact-resistant pneumatic rod structure, and particularly relates to the technical field of pneumatic rods, the high-load impact-resistant pneumatic rod structure comprises a fixing plate, and the top of the fixing plate is provided with a pneumatic telescopic rod; a bearing plate is mounted at the top of the pneumatic telescopic rod; a first fixing frame is fixedly connected to the top of the fixing plate. A knuckle bearing is mounted in the middle of the first fixing frame; the knuckle bearing is rotationally connected with the first fixing frame; the surface of the knuckle bearing is fixedly connected with a damping rod; the pair of damping rods is arranged at the bottom of the bearing plate and can share partial bearing force of the pneumatic telescopic rod, a heavy object makes contact with the top of the bearing plate, then the force is dispersed to the damping rods on the two sides and the top of the pneumatic telescopic rod, the pneumatic telescopic rod bears large force, and then the pneumatic telescopic rod and the damping rods contract; and the knuckle bearing rotates in the middle of the first fixing frame until the bearing plate stops descending at a proper height, so that the problem that the pneumatic rod is blocked in movement due to deformation or breakage when the pneumatic telescopic rod supports a heavy object can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic rod technology, and more specifically, to a high-load-bearing and impact-resistant pneumatic rod structure. Background Technology

[0002] A pneumatic rod is a linear actuator that uses compressed gas and hydraulic oil to generate controllable elastic force in a sealed cylinder. It achieves support, buffering, lifting or angle adjustment functions through the extension and retraction of the piston rod. It features compact structure, smooth movement and no need for external power. It is widely used in automobile tailgates, industrial equipment, furniture, medical devices and other fields. Its core performance parameters include stroke, thrust, speed and weather resistance.

[0003] Existing publication number CN107131193A discloses a pneumatic telescopic rod, including a power system and a telescopic system. The power system includes an air pump, a first pipeline, a second pipeline, a first reversing valve, and a second reversing valve. The air pump is equipped with a vacuum port and an air outlet. The first pipeline is connected to the vacuum port, and the second pipeline is connected to the air outlet. The first pipeline is equipped with a first reversing valve, and the second pipeline is equipped with a second reversing valve. The telescopic system includes multiple hollow tubes that are interlocked and slide relative to each other. One end of the telescopic system is sealed, and the other end is connected to the first and second pipelines. The pneumatic telescopic rod utilizes the bidirectional function of air pump compression and vacuuming to enable automatic telescopic extension and retraction, effectively avoiding the drawbacks of manual operation, expanding its application range, and extending its service life. The pneumatic telescopic rod itself is small in size, lightweight, and easy to carry. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] When supporting heavy objects, existing pneumatic rods are prone to deformation or breakage of the piston rod due to insufficient impact resistance, which can cause the pneumatic rod to jam and fail to work properly.

[0005] Therefore, a high-load-bearing, impact-resistant pneumatic rod structure is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-load-bearing and impact-resistant pneumatic rod structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-load-bearing, impact-resistant pneumatic rod structure, comprising a fixed plate, a pneumatic telescopic rod mounted on the top of the fixed plate; a load-bearing plate mounted on the top of the pneumatic telescopic rod; a first fixed frame fixedly connected to the top of the fixed plate; a spherical bearing mounted in the middle of the first fixed frame; the spherical bearing and the first fixed frame being rotatably connected; a damping rod fixedly connected to the surface of the spherical bearing; a second fixed frame mounted at the end of the damping rod; and the top of the second fixed frame fixedly connected to the load-bearing plate.

[0008] Preferably, a guide seat is installed on the top of the fixing plate; the top of the guide seat is provided with a plurality of first screws; the guide seat and the pneumatic telescopic rod are threadedly connected; the guide seat is wrapped around the surface of the pneumatic telescopic rod.

[0009] Preferably, the outer wall of the pneumatic telescopic rod is fixedly connected with a clamp; a plurality of second screws are installed on the top of the clamp; and the clamp is threadedly connected to the load-bearing plate.

[0010] Preferably, a sealing ring is slidably connected to the surface of the pneumatic telescopic rod; the sealing ring is wrapped around the middle of the pneumatic telescopic rod.

[0011] Preferably, a rubber pad is fixed to the inner side wall of the first fixing frame; the rubber pad is located between the first fixing frame and the damping rod.

[0012] Preferably, an elastic cloth is fixedly connected to one end of the damping rod; the end of the elastic cloth is fixedly connected to the other end of the damping rod.

[0013] Preferably, a sleeve is installed on the surface of the pneumatic telescopic rod; the sleeve is located at the top of the guide seat; a hollow tube is installed on the surface of the sleeve; the hollow tube is connected to the air passage in the middle of the pneumatic telescopic rod; and a pressure monitoring gauge is installed at the end of the hollow tube.

[0014] Preferably, a pressure relief valve is installed on the other side of the hollow tube; the pressure relief valve is located on the side wall of the pneumatic telescopic rod.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. Compared with the prior art, this high-load-bearing and impact-resistant pneumatic rod structure has a pair of damping rods at the bottom of the load-bearing plate to share part of the load-bearing force of the pneumatic telescopic rod. When the heavy object contacts the top of the load-bearing plate, the force is then distributed to the damping rods on both sides and the top of the pneumatic telescopic rod. The pneumatic telescopic rod bears a large force, and then the pneumatic telescopic rod and the damping rod retract. The spherical bearing rotates in the middle of the first fixed frame until the load-bearing plate stops descending at a suitable height. This setting can reduce the problem of deformation or breakage of the pneumatic telescopic rod when supporting heavy objects, which would cause the pneumatic rod to jam and fail to work properly.

[0017] 2. Compared with the prior art, this high-load impact-resistant pneumatic rod structure has multiple rubber pads on the inner wall of the first fixed frame. When the spherical bearing rotates, the rubber pads can prevent the damping rod from contacting the inner wall of the first fixed frame, thus preventing friction noise. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the sealing ring of this utility model.

[0020] Figure 3 This is a schematic diagram of the joint bearing of this utility model.

[0021] Figure 4 This is a schematic diagram of the pressure relief valve of this utility model.

[0022] The attached diagram is labeled as follows: 1. Fixing plate; 11. Pneumatic telescopic rod; 12. Load-bearing plate; 13. First fixing frame; 14. Spherical bearing; 15. Damping rod; 16. Second fixing frame; 2. Guide seat; 21. First screw; 3. Clamp; 31. Second screw; 4. Sealing ring; 5. Rubber pad; 6. Elastic cloth; 7. Sleeve; 71. Hollow tube; 72. Pressure monitoring gauge; 8. Pressure relief valve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] As attached Figures 1 to 4 The high-load, impact-resistant pneumatic rod structure shown includes a fixed plate 1; a pneumatic telescopic rod 11 is mounted on the top of the fixed plate 1; a load-bearing plate 12 is mounted on the top of the pneumatic telescopic rod 11; a first fixed frame 13 is fixedly connected to the top of the fixed plate 1; a spherical bearing 14 is mounted in the middle of the first fixed frame 13; the spherical bearing 14 is rotatably connected to the first fixed frame 13; a damping rod 15 is fixedly connected to the surface of the spherical bearing 14; a second fixed frame 16 is mounted at the end of the damping rod 15; and the top of the second fixed frame 16 is fixedly connected to the load-bearing plate 12.

[0026] When the device supports a heavy object, it first contacts the top of the load-bearing plate 12, then distributes the force to the tops of the damping rods 15 on both sides and the pneumatic telescopic rod 11. The pneumatic telescopic rod 11 bears a larger force. Subsequently, the pneumatic telescopic rod 11 and the damping rods 15 retract, and the spherical bearing 14 rotates in the middle of the first fixed frame 13 until the load-bearing plate 12 stops descending at a suitable height. By providing a pair of damping rods 15 at the bottom of the load-bearing plate 12, part of the load-bearing force of the pneumatic telescopic rod 11 can be distributed, reducing the problem of deformation or breakage of the pneumatic telescopic rod 11 when supporting heavy objects, which could cause the pneumatic rod to jam and malfunction.

[0027] Example 2

[0028] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0029] In a preferred embodiment, a guide seat 2 is installed on the top of the fixing plate 1; the top of the guide seat 2 is provided with a plurality of first screws 21; the guide seat 2 is threadedly connected to the pneumatic telescopic rod 11; the guide seat 2 is wrapped around the surface of the pneumatic telescopic rod 11; furthermore, when the pneumatic telescopic rod 11 retracts, the guide seat 2 can support the pneumatic telescopic rod 11 to maintain a vertical state, reducing the problem of bending and deformation of the bottom of the pneumatic telescopic rod 11 due to instability of the fixing components when supporting heavy objects.

[0030] In a preferred embodiment, a clamp 3 is fixed to the outer wall of the pneumatic telescopic rod 11; a plurality of second screws 31 are installed on the top of the clamp 3; the clamp 3 is threadedly connected to the load-bearing plate 12; furthermore, the clamp 3 can evenly distribute the force points to the surface of the pneumatic telescopic rod 11.

[0031] In a preferred embodiment, a sealing ring 4 is slidably connected to the surface of the pneumatic telescopic rod 11; the sealing ring 4 is wrapped around the middle of the pneumatic telescopic rod 11; furthermore, when the pneumatic telescopic rod 11 extends or retracts, the sealing ring 4 can be attached to the surface of the pneumatic telescopic rod 11 and move with it, the sealing ring 4 can reduce the air entering the interior of the pneumatic telescopic rod 11 and reduce the gas leakage inside the pneumatic telescopic rod 11.

[0032] In a preferred embodiment, a rubber pad 5 is fixed to the inner wall of the first fixing frame 13; the rubber pad 5 is located between the first fixing frame 13 and the damping rod 15; furthermore, the rubber pad 5 can prevent the damping rod 15 from contacting the inner wall of the first fixing frame 13, thereby preventing friction noise.

[0033] In a preferred embodiment, an elastic cloth 6 is fixedly connected to one end of the damping rod 15; the other end of the elastic cloth 6 is fixedly connected to the other end of the damping rod 15; furthermore, the elastic cloth 6 can extend and contract on its own along with the damping rod 15, reducing the entry of external dust and debris into the middle of the damping rod 15.

[0034] In a preferred embodiment, a sleeve 7 is mounted on the surface of the pneumatic telescopic rod 11; the sleeve 7 is located at the top of the guide seat 2; a hollow tube 71 is mounted on the surface of the sleeve 7; the hollow tube 71 is connected to the air passage in the middle of the pneumatic telescopic rod 11; a pressure monitoring gauge 72 is mounted on the end of the hollow tube 71; furthermore, when the pneumatic telescopic rod 11 is subjected to gravity, the air pressure is displayed through the hollow tube 71 to the pressure monitoring gauge 72 for observation.

[0035] In a preferred embodiment, a pressure relief valve 8 is installed on the other side of the hollow tube 71; the pressure relief valve 8 is located on the side wall of the pneumatic telescopic rod 11; furthermore, when the pressure monitoring gauge 72 detects that the pressure is too high, the pressure relief valve 8 can be opened to relieve pressure and prevent damage to the pneumatic telescopic rod 11.

[0036] In this embodiment, the damping rod 15, sleeve 7, etc. are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, so we will not go into detail here.

[0037] The working process of this utility model is as follows: First, when the device supports a heavy object, it first contacts the top of the load-bearing plate 12, and then distributes the force to the top of the damping rods 15 on both sides and the pneumatic telescopic rod 11. The clamp 3 can evenly distribute the force points to the surface of the pneumatic telescopic rod 11, and the pneumatic telescopic rod 11 bears a large force. Then the pneumatic telescopic rod 11 and the damping rod 15 retract. When the pneumatic telescopic rod 11 retracts, the sealing ring 4 can fit against the surface of the pneumatic telescopic rod 11 and move with it. At the same time, the guide seat 2 can support the pneumatic telescopic rod 11 to keep it in a vertical state. At this time, the joint bearing 14 rotates in the middle of the first fixed frame 13, and the elastic cloth 6 can prevent the damping rod 15 from contacting the inner wall of the first fixed frame 13 until the load-bearing plate 12 stops descending at a suitable height. When the damping rod 15 extends or retracts, the elastic cloth 6 can extend and retract on its own. When the pneumatic telescopic rod 11 bears gravity, the air pressure is displayed through the hollow tube 71 to the pressure monitoring gauge 72 for observation. When the pressure on the pressure monitoring gauge 72 is too high, the pressure relief valve 8 can be opened to relieve the pressure. The above is the working principle of this high-load impact-resistant pneumatic rod structure.

Claims

1. A high-load-bearing, impact-resistant pneumatic rod structure, comprising a fixed plate (1), characterized in that: A pneumatic telescopic rod (11) is installed on the top of the fixed plate (1); a load-bearing plate (12) is installed on the top of the pneumatic telescopic rod (11); a first fixed frame (13) is fixedly connected to the top of the fixed plate (1); a spherical bearing (14) is installed in the middle of the first fixed frame (13); the spherical bearing (14) is rotatably connected to the first fixed frame (13); a damping rod (15) is fixedly connected to the surface of the spherical bearing (14); a second fixed frame (16) is installed at the end of the damping rod (15); the top of the second fixed frame (16) is fixedly connected to the load-bearing plate (12).

2. The high-load-bearing, impact-resistant pneumatic rod structure according to claim 1, characterized in that: The top of the fixing plate (1) is equipped with a guide seat (2); the top of the guide seat (2) is provided with a plurality of first screws (21); the guide seat (2) is threadedly connected to the pneumatic telescopic rod (11); the guide seat (2) is wrapped around the surface of the pneumatic telescopic rod (11).

3. The high-load-bearing, impact-resistant pneumatic rod structure according to claim 2, characterized in that: The outer wall of the pneumatic telescopic rod (11) is fixed with a clamp (3); a plurality of second screws (31) are installed on the top of the clamp (3); the clamp (3) is threadedly connected to the load-bearing plate (12).

4. The high-load-bearing, impact-resistant pneumatic rod structure according to claim 2, characterized in that: A sealing ring (4) is slidably connected to the surface of the pneumatic telescopic rod (11); the sealing ring (4) is wrapped around the middle part of the pneumatic telescopic rod (11).

5. The high-load-bearing, impact-resistant pneumatic rod structure according to claim 4, characterized in that: A rubber pad (5) is fixed to the inner wall of the first fixing frame (13); the rubber pad (5) is located between the first fixing frame (13) and the damping rod (15).

6. The high-load-bearing, impact-resistant pneumatic rod structure according to claim 4, characterized in that: An elastic cloth (6) is fixedly connected to one end of the damping rod (15); the other end of the elastic cloth (6) is fixedly connected to the other end of the damping rod (15).

7. The high-load impact-resistant pneumatic rod structure according to claim 1, characterized in that: A sleeve (7) is installed on the surface of the pneumatic telescopic rod (11); the sleeve (7) is located at the top of the guide seat (2); a hollow tube (71) is installed on the surface of the sleeve (7); the hollow tube (71) is connected to the air passage in the middle of the pneumatic telescopic rod (11); a pressure monitoring gauge (72) is installed at the end of the hollow tube (71).

8. The high-load-bearing, impact-resistant pneumatic rod structure according to claim 7, characterized in that: A pressure relief valve (8) is installed on the other side of the hollow tube (71); the pressure relief valve (8) is located on the side wall of the pneumatic telescopic rod (11).

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