High-strength gas spring

Abstract

The utility model relates to the technical field of gas springs, in particular to a high-strength gas spring which comprises a cylinder body, a guide bearing and a piston rod, the guide bearing is installed inside the cylinder body, the piston rod is connected with the inner wall of the guide bearing in a sliding mode, the lower surface of the cylinder body is fixedly connected with an installation portion, and a reinforcing assembly is arranged on the surface of the piston rod. The reinforcing assembly comprises a connecting unit, the connecting unit comprises a positioning ring, the positioning ring is fixedly connected with the cambered surface of the piston rod, a fixing bolt is installed on the inner wall of the positioning ring, a cross is installed on the upper surface of the positioning ring, and the fixing bolt is in threaded connection with the inner wall of the cross. According to the gas spring, by arranging the reinforcing assembly, the structure of the piston rod part of the gas spring is increased, then the problem that the piston rod is prone to being damaged due to the fact that the load of the piston rod part is high when the gas spring works is solved, and the structural strength of the gas spring is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas springs, in particular to a high-strength gas spring. Background Art

[0002] A gas spring is a mechanical component with gas as the elastic medium. It usually consists of a cylinder barrel, a piston, a piston rod, seals, etc. The gas spring has functions such as support, buffering, and height adjustment, and is widely used in industries, automobiles, furniture, etc. For example, it can be used for the height adjustment of the trunk lid of an automobile and an office chair. The gas spring has the advantages of small volume, light weight, convenient installation, and stable operation, and can provide reliable supporting force and buffering effect in different working environments, bringing convenience and comfort to the use of various equipment and products.

[0003] The prior art such as the utility model with the publication number of CN217736120U discloses a high-strength gas spring with stable support. This patent adopts a gas spring body and an upper connecting support head, and the upper connecting support head is installed and connected at the upper end of the gas spring body. In the present utility model, the upper mounting part and the lower mounting part structure make it easy to install and disassemble. The fastening bolts at the four corners of the upper end of the metal iron plate are rotated and fixed on the specified external fixing part. In this way, the installation is more convenient by fixing and connecting through the rotation of the bolts, and it is also convenient for later disassembly, replacement, and maintenance. Further, through the threaded short rod in the middle of the upper end of the square metal block at the lower end of the metal iron plate, it is convenient for the upper connecting support head to be sleeved on the threaded short rod, and then it is fixed and restricted by a nut, so that the upper connecting support head is tightly connected and fixed to the threaded short rod. In this way, first, the upper connecting support head is sleeved on the threaded short rod, and then it is fixed and restricted by a nut, making the installation more convenient and also convenient for later disassembly, solving the problem that the installation structure of the existing high-strength gas spring with stable support is relatively cumbersome, resulting in time-consuming and laborious installation, and being inconvenient for later disassembly, replacement, and maintenance.

[0004] In the process of using a gas spring as an elastic mechanical component, there are existing gas springs such as the above-mentioned ones. Its telescopic structure still relies on a single piston rod, and during operation, the piston rod is used to connect both ends of the mechanical structure. Since the gas spring only relies on a single piston rod to bear the load during work, during long-term work, the piston rod is prone to deformation under the action of the load, and then its structure is bent, resulting in equipment failure. Summary of the Utility Model

[0005] The object of the present utility model is to solve the drawbacks existing in the prior art that during the operation of a gas spring, only a single piston rod bears the load. During long-term operation, the piston rod is prone to deformation under the action of the load, which then leads to bending of its structure and causes equipment failure. A high-strength gas spring is proposed.

[0006] To achieve the above object, the present utility model adopts the following technical solution: A high-strength gas spring includes a cylinder body, a guide bearing, and a piston rod. The guide bearing is installed inside the cylinder body. The piston rod is slidably connected to the inner wall of the guide bearing. The lower surface of the cylinder body is fixedly connected with a mounting portion. A reinforcement assembly is arranged on the surface of the piston rod.

[0007] The reinforcement assembly includes a connection unit. The connection unit includes a positioning ring. The positioning ring is fixedly connected to the arc surface of the piston rod. A fixing bolt is installed on the inner wall of the positioning ring. A cross is installed on the upper surface of the positioning ring. The fixing bolt is threadedly connected to the inner wall of the cross. A load-bearing rod is fixedly connected to the lower surface of the cross. A guiding frame is fixedly connected to the outer circumference of the cylinder body. The load-bearing rod is slidably connected to the inner wall of the guiding frame.

[0008] The reinforcement assembly further includes an assisting unit. The assisting unit includes a fixing ring. The fixing ring is bolted to the surface of the load-bearing rod. A connecting sleeve is sleeved on the surface of the load-bearing rod. The connecting sleeve is sleeved on the surface of the cylinder body. A fastening nut is threadedly connected to the surface of the load-bearing rod.

[0009] Preferably, a first reinforcing rib is fixedly connected to the lower surface of the positioning ring. The first reinforcing rib is fixedly connected to the arc surface of the piston rod. The number of the first reinforcing ribs is four. The four first reinforcing ribs are arranged in a circumferential array with respect to the positioning ring. The structural strength of the connection between the positioning ring and the piston rod can be increased through the first reinforcing ribs, thereby improving the firmness of the positioning ring.

[0010] Preferably, a second reinforcing rib is fixedly connected to the lower surface of the cross. The cross is sleeved on the surface of the piston rod. The structural strength of the bent part of the cross can be increased through the second reinforcing rib to improve the load-bearing capacity of the cross.

[0011] Preferably, the number of the load-bearing rods is four. The four load-bearing rods are arranged in a circumferential array with respect to the cylinder body. Through the cooperation of the load-bearing rods and the guiding frame, the structure of the piston rod can be strengthened to improve the stability of the piston rod.

[0012] Preferably, the number of the fixing rings is four. The four fixing rings are arranged in a circumferential array with respect to the cylinder body. The number of the fastening nuts matches that of the fixing rings. Through the cooperation of the fixing rings and the fastening nuts, the position of the connecting sleeve can be locked.

[0013] Preferably, the connecting sleeve frame is in contact with the lower surface of the fixing ring, and the connecting sleeve frame is in contact with the upper surface of the fastening nut. Through the connecting sleeve frame, the lower end structure of the load-bearing rod can be supported and strengthened in the locked state.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] In the present utility model, by providing a reinforcement assembly, when it is necessary to reinforce the gas spring, align the load-bearing rod with the hole of the guiding frame, push the cross, the cross pushes the load-bearing rod into the guiding frame. During the movement of the cross, it abuts against the surface of the positioning ring, and then insert the fixing bolt into the positioning ring and rotate it. During the rotation of the fixing bolt, it screws into the cross. When the fixing bolt is tightened, the position of the cross can be locked, thus completing the installation of the load-bearing rod. When the above operations are completed, install the fixing ring on the surface of the load-bearing rod. When the fixing ring is fixed, put the connecting sleeve frame on the load-bearing rod, and put the fastening nut on the load-bearing rod. Rotate the fastening nut. When the fastening nut is tightened, the position of the connecting sleeve frame can be locked in cooperation with the fixing ring, and then the assembly of the entire reinforcement assembly is completed. By providing the reinforcement assembly, the structure of the piston rod part of the gas spring is increased, and then the problem that the load of the piston rod part is relatively high during the operation of the gas spring, resulting in easy damage to the piston rod, is reduced, and the structural strength of the gas spring is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a high-strength gas spring proposed by the present utility model;

[0017] Figure 2 is a bottom view structural schematic diagram of a high-strength gas spring proposed by the present utility model;

[0018] Figure 3 is a structural schematic diagram of a reinforcement assembly of a high-strength gas spring proposed by the present utility model;

[0019] Figure 4 is a bottom view structural schematic diagram of a reinforcement assembly of a high-strength gas spring proposed by the present utility model;

[0020] Figure 5 is a high-strength gas spring proposed by the present utility model Figure 4 structural schematic diagram of part A therein.

[0021] Legend:

[0022] 1. Cylinder block; 2. Guide bearing; 3. Piston rod; 4. Installation part; 5. Reinforcement assembly; 51. Connection unit; 511. Positioning ring; 512. Fixed bolt; 513. Cross; 514. Load-bearing rod; 515. Guide frame; 516. First reinforcing rib; 517. Second reinforcing rib; 52. Assistance unit; 521. Fixed ring; 522. Connecting sleeve; 523. Fastening nut. Detailed implementation mode

[0023] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a high-strength gas spring, including a cylinder block 1, a guide bearing 2 and a piston rod 3. The guide bearing 2 is installed inside the cylinder block 1, the piston rod 3 is slidably connected to the inner wall of the guide bearing 2, the lower surface of the cylinder block 1 is fixedly connected with an installation part 4, and a reinforcement assembly 5 is arranged on the surface of the piston rod 3.

[0024] In this embodiment: The reinforcement assembly 5 includes a connection unit 51. The connection unit 51 includes a positioning ring 511. The positioning ring 511 is fixedly connected to the arc surface of the piston rod 3. A fixed bolt 512 is installed on the inner wall of the positioning ring 511. A cross 513 is installed on the upper surface of the positioning ring 511. The fixed bolt 512 is threadedly connected to the inner wall of the cross 513. A load-bearing rod 514 is fixedly connected to the lower surface of the cross 513. A guide frame 515 is fixedly connected to the outer circumference of the cylinder block 1. The load-bearing rod 514 is slidably connected to the inner wall of the guide frame 515;

[0025] The reinforcement assembly 5 further includes an assistance unit 52. The assistance unit 52 includes a fixed ring 521. The fixed ring 521 is bolted to the surface of the load-bearing rod 514. A connecting sleeve 522 is sleeved on the surface of the load-bearing rod 514. The connecting sleeve 522 is sleeved on the surface of the cylinder block 1. A fastening nut 523 is threadedly connected to the surface of the load-bearing rod 514.

[0026] Specifically, a first reinforcing rib 516 is fixedly connected to the lower surface of the positioning ring 511. The first reinforcing rib 516 is fixedly connected to the arc surface of the piston rod 3. The number of the first reinforcing ribs 516 is four. The four first reinforcing ribs 516 are arranged in a circumferential array with respect to the positioning ring 511. The first reinforcing rib 516 can increase the structural strength of the connection between the positioning ring 511 and the piston rod 3, thereby improving the firmness of the positioning ring 511.

[0027] Specifically, a second reinforcing rib 517 is fixedly connected to the lower surface of the cross 513. The cross 513 is sleeved on the surface of the piston rod 3.

[0028] In this embodiment: The second reinforcing rib 517 can increase the structural strength of the bent part of the cross 513 to improve the load-bearing capacity of the cross 513.

[0029] Specifically, the number of load-bearing rods 514 is four, and the four load-bearing rods 514 are arranged in a circular array with respect to the cylinder block 1. Through the cooperation of the load-bearing rods 514 and the guide frame 515, the structure of the piston rod 3 can be strengthened to improve the stability of the piston rod 3.

[0030] In this embodiment: The number of fixing rings 521 is four, and the four fixing rings 521 are arranged in a circular array with respect to the cylinder block 1. The number of fastening nuts 523 matches that of the fixing rings 521.

[0031] In this embodiment: Through the cooperation of the fixing ring 521 and the fastening nut 523, the position of the connecting sleeve 522 can be locked.

[0032] Specifically, the connecting sleeve 522 is in contact with the lower surface of the fixing ring 521, and the connecting sleeve 522 is in contact with the upper surface of the fastening nut 523. Through the connecting sleeve 522, the lower end structure of the load-bearing rod 514 can be supported and strengthened in the locked state.

[0033] Working principle: When the gas spring needs to be strengthened, align the load-bearing rod 514 with the hole of the guide frame 515, and push the cross 513. The cross 513 pushes the load-bearing rod 514 into the guide frame 515. During the movement of the cross 513, it abuts against the surface of the positioning ring 511. Then insert the fixing bolt 512 into the positioning ring 511 and rotate it. During the rotation of the fixing bolt 512, it is screwed into the cross 513. When the fixing bolt 512 is tightened, the position of the cross 513 can be locked, thus completing the installation of the load-bearing rod 514. When the above operations are completed, install the fixing ring 521 on the surface of the load-bearing rod 514. When the fixing ring 521 is fixed, put the connecting sleeve 522 onto the load-bearing rod 514, and put the fastening nut 523 onto the load-bearing rod 514. Rotate the fastening nut 523. When the fastening nut 523 is tightened, the position of the connecting sleeve 522 can be locked in cooperation with the fixing ring 521, and then the assembly of the entire reinforcement component 5 is completed. By setting the reinforcement component 5, the structure of the piston rod 3 part of the gas spring is increased, and then the problem that the load of the piston rod 3 part is relatively high during the operation of the gas spring, resulting in easy damage to the piston rod 3, is reduced, and the structural strength of the gas spring is further improved.

Claims

1. A high-strength gas spring, comprising a cylinder body (1), a guide bearing (2) and a piston rod (3), characterized in that: The guide (2) is installed inside the cylinder (1), the piston rod (3) is slidably connected to the inner wall of the guide (2), the lower surface of the cylinder (1) is fixedly connected with a mounting portion (4), and the surface of the piston rod (3) is provided with a reinforcement component (5); The reinforcement assembly (5) comprises a connection unit (51), the connection unit (51) comprises a positioning ring (511), the positioning ring (511) is fixedly connected to the arc surface of the piston rod (3), a fixing bolt (512) is installed on the inner wall of the positioning ring (511), a cross (513) is installed on the upper surface of the positioning ring (511), the fixing bolt (512) is threadedly connected to the inner wall of the cross (513), a load-bearing rod (514) is fixedly connected to the lower surface of the cross (513), the outer circumference of the cylinder body (1) is fixedly connected to a guide frame (515), and the load-bearing rod (514) is slidably connected to the inner wall of the guide frame (515); The reinforcement assembly (5) further comprises an assisting unit (52), wherein the assisting unit (52) comprises a fixing ring (521), wherein the fixing ring (521) is bolted to the surface of the load-bearing rod (514), wherein the surface of the load-bearing rod (514) is sleeved with a connecting sleeve (522), wherein the connecting sleeve (522) is sleeved with the surface of the cylinder body (1), and wherein the surface of the load-bearing rod (514) is threadedly connected with a fastening nut (523).

2. A high-strength gas spring according to claim 1, characterized in that: A reinforcing rib (516) is fixedly connected to the lower surface of the positioning ring (511), and the reinforcing rib (516) is fixedly connected to the arc surface of the piston rod (3). The number of the reinforcing ribs (516) is four, and the four reinforcing ribs (516) are arranged in a circular array with respect to the positioning ring (511).

3. A high-strength gas spring according to claim 1, characterized in that: A second reinforcing rib (517) is fixedly connected to the lower surface of the cross (513), and the cross (513) is sleeved with the surface of the piston rod (3).

4. A high-strength gas spring according to claim 1, characterized in that: The number of the force-carrying rods (514) is four, and the four force-carrying rods (514) are arranged in a circular array with respect to the cylinder body (1).

5. A high-strength gas spring according to claim 1, characterized in that: The number of the fixing rings (521) is four, and the four fixing rings (521) are arranged in a circular array with respect to the cylinder body (1), and the number of the fastening nuts (523) matches the number of the fixing rings (521).

6. A high-strength gas spring according to claim 1, characterized in that: The connecting sleeve (522) is in contact with the lower surface of the fixing ring (521), and the connecting sleeve (522) is in contact with the upper surface of the fastening nut (523).

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