Low-weight cushion cylinder
By designing a low-weight buffer cylinder with gradually thickening the side wall of the cylinder and removable reinforcement, the problem of excessive weight of the buffer cylinder is solved, achieving a lighter cushioning effect and wider applicability.
Patent Information
- Application Number
- CN202422088328.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The buffer cylinders are heavier in aerospace equipment, resulting in less weight of cargo that the equipment can carry.
A low-weight buffer cylinder is designed, and the thickness of the side wall of the cylinder is gradually increased from the first end cover to the second end cover, and combined with the removable reinforcement, the cylinder structure is optimized to meet different pressure needs.
The weight of the buffer cylinder is reduced, allowing aerospace equipment to carry more cargo and has a wider range of applications.
Smart Images
Figure CN223049294U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of buffer rods, in particular to a low-weight buffer cylinder. Background Art
[0002] The buffer cylinder is a commonly used buffer device and is widely used in the fields of automatic control, robotics, etc. In the fields of aerospace, etc., the buffer cylinder is used for buffering aerospace equipment and its accessories during the landing process of aerospace equipment. Due to the heavy weight of the buffer cylinder and the limited maximum load of aerospace equipment, the weight of the goods that aerospace equipment can carry is less. Summary of the Utility Model
[0003] For this reason, the technical problem to be solved by the utility model is to provide a low-weight buffer cylinder, which can reduce the weight of the buffer cylinder.
[0004] To solve the above technical problem, the utility model provides a low-weight buffer cylinder, including: a cylinder body, the cylinder body includes a first end cover, a second end cover and a cylinder barrel connected between the first end cover and the second end cover, the first end cover is provided with a through hole, the cylinder barrel and the first end cover and the second end cover form an accommodation space, and the thickness of the side wall of the cylinder barrel gradually increases from the first end cover to the second end cover direction; a sliding rod, the sliding rod penetrates through the through hole, one end of the sliding rod is connected with a stop block, the stop block is located in the accommodation space, and the stop block is attached to the cylinder barrel, and a sealed space is formed between the second end cover and the stop block.
[0005] In an embodiment of the utility model, the cylinder barrel includes a plurality of bumps with different thicknesses, the bumps are located on the side wall far from the accommodation space, and the thicknesses of the plurality of bumps gradually increase along the direction from the first end cover to the second end cover.
[0006] In an embodiment of the utility model, the bumps are arranged in sequence along the direction from the second end cover to the first end cover, and the bumps are arranged around the side wall of the cylinder barrel in a circle.
[0007] In an embodiment of the utility model, the plane where the side wall of the cylinder barrel located in the accommodation space is perpendicular to the plane where the second end cover is located, the thickness of the side wall of the cylinder barrel far from the accommodation space gradually increases along the direction from the first end cover to the second end cover, and the surface of the side wall of the cylinder barrel far from the accommodation space is smooth.
[0008] In an embodiment of the utility model, the cylinder barrel includes a plurality of first reinforcing members, and the first reinforcing members are detachably connected to the side wall of the cylinder barrel far from the accommodation space.
[0009] In an embodiment of the present utility model, the first reinforcing member is sleeved on the side wall of the cylinder barrel, and the thickness of multiple first reinforcing members gradually increases in the direction from the first end cover to the second end cover.
[0010] In an embodiment of the present utility model, multiple first reinforcing members are sequentially arranged in the direction from the second end cover to the first end cover, and the ends of adjacent first reinforcing members are in contact with each other.
[0011] In an embodiment of the present utility model, the cylinder barrel includes a second reinforcing member, the second reinforcing member is sleeved on the side wall of the cylinder barrel on the side away from the accommodating space, and the second reinforcing member is detachably connected to the cylinder barrel. The second reinforcing member abuts against the second end cover, and the thickness of the second reinforcing member gradually increases in the direction from the first end cover to the second cover.
[0012] In an embodiment of the present utility model, the sliding rod fits against the side wall of the through hole, and the sliding rod is slidably connected to the through hole.
[0013] In an embodiment of the present utility model, the width of the stop block is greater than the diameter of the through hole.
[0014] The above technical solution of the present utility model has the following advantages compared with the prior art:
[0015] For the low-weight buffer cylinder of the present utility model, by making the thickness of the side wall of the cylinder barrel gradually increase in the direction from the first end cover to the second end cover, the pressure that the cylinder barrel can withstand gradually increases in the direction of the second end cover, so that the cylinder barrel can withstand the corresponding pressure at each position of the stop block in the accommodating space. Compared with the prior art of a straight-cylindrical cylinder barrel, the cylinder barrel in this embodiment has a lower weight, enabling the aerospace equipment to carry more cargo weight. Through the detachable connection between the first reinforcing member and the side wall of the cylinder barrel, the cylinder barrel can replace the first reinforcing members with different thicknesses according to the actual conditions at each position on the cylinder barrel, thereby making the low-weight buffer cylinder of the present utility model have a wider application range. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in conjunction with the attached drawings, where
[0017] Figure 1 is a schematic structural diagram of a low-weight buffer cylinder of the present utility model;
[0018] Figure 2 is Figure 1 a schematic structural diagram of another embodiment;
[0019] Figure 3 is Figure 1Structural schematic diagram of another embodiment.
[0020] Explanation of reference numerals in the drawings of the specification: 1. Cylinder barrel; 2. First end cover; 3. Second end cover; 4. Slide bar; 11. Accommodating space; 12. Sealed space; 13. Protrusion; 14. First reinforcing member; 21. Through hole; 41. Stop block. Detailed implementation manners
[0021] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the illustrated embodiments are not intended to limit the present utility model.
[0022] Referring to Figure 1 As shown, a low-weight buffer cylinder of the present utility model includes: a cylinder body, the cylinder body includes a first end cover 2, a second end cover 3, and a cylinder barrel 1 connected between the first end cover 2 and the second end cover 3. The first end cover 2 is provided with a through hole 21. The cylinder barrel 1 and the first end cover 2 and the second end cover 3 form an accommodating space 11. The thickness of the side wall of the cylinder barrel 1 gradually increases from the first end cover 2 to the direction of the second end cover 3. A slide bar 4, the slide bar 4 penetrates through the through hole 21. One end of the slide bar 4 is connected to the stop block 41. The stop block 41 is located in the accommodating space 11, and the stop block 41 is in contact with the cylinder barrel 1. A sealed space 12 is formed between the second end cover 3 and the stop block 41.
[0023] In a low-weight buffer cylinder of this embodiment, a buffer object abuts against the end of the slide bar 4 far from the stop block 41 and pushes the slide bar 4 to move towards the second end cover 3, so that the stop block 41 compresses the liquid or gas in the sealed space 12, thereby forming a buffer for the buffer object. During the process of the stop block 41 moving towards the second end cover 3, the closer the distance between the stop block 41 and the second end cover 3 is, that is, the smaller the sealed space 12 is, the greater the pressure borne by the side wall of the sealed space 12 corresponding to the cylinder barrel 1 is. By making the thickness of the side wall of the cylinder barrel 1 gradually increase from the first end cover 2 to the direction of the second end cover 3, the pressure that the cylinder barrel 1 can bear gradually increases towards the second end cover 3, so that the cylinder barrel 1 can bear the corresponding pressure at each position in the accommodating space 11. Compared with the prior art of a cylinder barrel in a straight cylinder shape, the cylinder barrel 1 of this embodiment has a lower weight, enabling the aerospace equipment to carry more cargo weight.
[0024] The cylinder body includes a first end cover 2, a second end cover 3, and a cylinder barrel 1 connected between the first end cover 2 and the second end cover 3. The first end cover 2 is located at the top of the cylinder barrel 1. A through hole 21 is provided at the middle position of the first end cover 2. The second end cover 3 is located at the bottom of the cylinder barrel 1. In this embodiment, the cross-section of the cylinder barrel 1 is in a circular ring shape. The cross-section of the cylinder barrel 1 can also be in a triangular ring shape, a quadrilateral ring shape, etc. The cylinder barrel 1 and the first end cover 2 and the second end cover 3 form an accommodating space 11.
[0025] The sliding rod 4 is arranged through the through hole 21. One end of the sliding rod 4 is connected to the stop block 41, and the stop block 41 is located within the accommodation space 11. The other end of the sliding rod 4 is located outside the accommodation space 11 and is used to abut against a buffer object. The side wall of the stop block 41 is in contact with the cylinder barrel 1, and the stop block 41 is slidably connected to the cylinder barrel 1, so that a sealed space 12 is formed between the stop block 41 and the second end cover 3. In this embodiment, gas can be arranged within the sealed space 12 to form a buffer cylinder, or liquid can also be arranged within the sealed space 12 to form a buffer hydraulic cylinder. The width of the stop block 41 is greater than the diameter of the through hole 21, so as to prevent the stop block 41 from detaching from the through hole 21 to the outside of the accommodation space 11. The sliding rod 4 is in contact with the side wall of the through hole 21, and the sliding rod 4 is slidably connected to the through hole 21, so that the through hole 21 has a guiding effect on the sliding rod 4. At the same time, the contact between the sliding rod 4 and the side wall can prevent foreign objects from entering the accommodation space 11.
[0026] The plane where the side wall of the cylinder barrel 1 is located within the accommodation space 11 is perpendicular to the plane where the second end cover 3 is located, that is, the inner side wall of the cylinder barrel 1 is smooth, so that the stop block 41 can slide within the accommodation space 11. The thickness of the side wall of the cylinder barrel 1 gradually increases from the first end cover 2 to the second end cover 3 direction, so that the pressure that the cylinder barrel 1 can withstand gradually increases in the second end cover 3 direction, and further enables the cylinder barrel 1 to withstand the corresponding pressure at each position where the stop block 41 is located within the accommodation space 11. Specifically, the cylinder barrel 1 includes a plurality of bumps 13 with different thicknesses. The bumps 13 are located on the side wall away from the accommodation space 11, that is, the bumps 13 are located on the outer side wall of the cylinder barrel 1. The thickness of the bumps 13 gradually increases from the first end cover 2 to the second end cover 3 direction, so that the thickness of the side wall of the cylinder barrel 1 gradually increases from the first end cover 2 to the second end cover 3 direction. The bumps 13 are arranged in sequence from the second end cover 3 to the first end cover 2 direction. The bump 13 with the largest thickness abuts against the second end cover 3, and the bumps 13 are arranged in a circle around the side wall of the cylinder barrel 1, so that the outer side wall of the cylinder barrel 1 is integrally stepped and the radial thickness at each height is the same. At the same time, the arrangement of the bumps 13 enables the cylinder barrel 1 to be clamped with an external card slot, facilitating the positioning and fixing of the cylinder barrel 1.
[0027] Refer to Figure 2 As shown, in another embodiment, the thickness of the side wall of the cylinder barrel 1 away from the accommodation space 11 gradually increases from the first end cover 2 to the second end cover 3 direction, and the surface of the side wall of the cylinder barrel 1 away from the accommodation space 11 is smooth, that is, the outer side wall of the cylinder barrel 1 is integrally conical, so that the pressure that the cylinder barrel 1 can withstand from the first end cover 2 to the second end cover 3 direction increases linearly, and can match the pressure borne by the cylinder barrel 1 during the movement of the stop block 41. According to the different pressures borne by the cylinder barrel 1 during the movement of the stop block 41, the outer side wall of the cylinder barrel 1 can also be arc-shaped.
[0028] Refer to Figure 3As shown, in another embodiment, the cylinder barrel 1 includes a plurality of first reinforcing members 14. The first reinforcing members 14 are detachably connected to the side wall of the cylinder barrel 1 on the side away from the accommodation space 11. The detachable connection between the first reinforcing members 14 and the side wall of the cylinder barrel 1 enables the cylinder barrel 1 to replace the first reinforcing members 14 with different thicknesses according to the actual conditions at various positions on the cylinder barrel 1, thereby making the applicable range of a low-weight buffer cylinder in this embodiment wider. Preferably, the first reinforcing members 14 are sleeved on the side wall of the cylinder barrel 1, and the first reinforcing members 14 are in a circular ring shape. The thicknesses of the plurality of first reinforcing members 14 gradually increase in the direction from the first end cap 2 to the second end cap 3. The first reinforcing member 14 with the largest thickness abuts against the second end cap 3, so that the radial thicknesses of the side wall of the cylinder barrel 1 at various heights are equal. The plurality of first reinforcing members 14 are sequentially arranged in the direction from the second end cap 3 to the first end cap 2, and the ends of adjacent first reinforcing members 14 abut against each other, so that the overall outer side wall of the cylinder barrel 1 is in a stepped shape, and there is no gap between adjacent first reinforcing members 14, preventing cracks from occurring at the gap position due to the unstable pressure borne by the cylinder barrel 1 caused by the gap between the first reinforcing members 14.
[0029] In another embodiment, the cylinder barrel 1 includes a second reinforcing member (not shown in the figure). The second reinforcing member is sleeved on the side wall of the cylinder barrel 1 on the side away from the accommodation space 11, and the second reinforcing member is detachably connected to the cylinder barrel 1. The second reinforcing member is in a conical shape as a whole, so that the thickness of the second reinforcing member gradually increases from the first end cap 2 to the second end cap 3. The second reinforcing member abuts against and is connected to the second end cap 3. While the second reinforcing member can fit the outer side wall of the cylinder barrel 1, it can also prevent weak positions such as gaps from appearing on the side wall of the cylinder barrel 1. Through the detachable connection between the second reinforcing member and the cylinder barrel 1, the cylinder barrel 1 can replace the second reinforcing members with different thicknesses according to the actual conditions, and the replacement speed is relatively fast.
[0030] During use, the buffer object abuts against and pushes the slide rod 4 towards the second end cap 3 at the end of the slide rod 4 away from the stopper 41, so that the stopper 41 compresses the liquid or gas in the closed space 12. During the movement of the stopper 41 towards the second end cap 3, the closer the distance between the stopper 41 and the second end cap 3 is, the greater the pressure borne by the side wall of the cylinder barrel 1. By making the thickness of the side wall of the cylinder barrel 1 gradually increase in the direction from the first end cap 2 to the second end cap 3, the cylinder barrel 1 can withstand the pressure when the stopper 41 is at various positions.
[0031] A low-weight buffer cylinder of the present utility model has the thickness of the side wall of the cylinder barrel 1 gradually increasing from the first end cover 2 towards the second end cover 3, so that the pressure that the cylinder barrel 1 can withstand gradually increases towards the second end cover 3. As a result, the cylinder barrel 1 can withstand the corresponding pressure at various positions where the stopper 41 is located within the accommodation space 11. Compared with the prior art where the cylinder barrel 1 is in a straight cylinder shape, the cylinder barrel 1 in this embodiment has a lower weight, enabling the aerospace equipment to carry more cargo weight. By the detachable connection between the first reinforcing member 14 and the side wall of the cylinder barrel 1, the cylinder barrel 1 can replace the first reinforcing member 14 with different thicknesses according to the actual conditions at various positions on the cylinder barrel 1, thereby making the low-weight buffer cylinder of the present utility model have a wider application range.
[0032] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.
Claims
1. A low-weight buffer cylinder, characterized in that: include: A cylinder body, the cylinder body comprising a first end cover, a second end cover and a cylinder barrel connected between the first end cover and the second end cover, the first end cover is provided with a through hole, the cylinder barrel, the first end cover and the second end cover form a receiving space, and the thickness of the side wall of the cylinder barrel gradually increases from the first end cover to the second end cover; A sliding rod passes through the through hole, one end of the sliding rod is connected to a stopper, the stopper is located in the accommodating space, and the stopper is fitted with the cylinder barrel, and a closed space is formed between the second end cover and the stopper.
2. The low-weight buffer cylinder according to claim 1, characterized in that: The cylinder comprises a plurality of protrusions with different thicknesses, wherein the protrusions are located on a side wall away from the accommodating space, and the thickness of the plurality of protrusions gradually increases from the first end cover to the second end cover.
3. The low-weight buffer cylinder according to claim 2, characterized in that: The protrusions are arranged in sequence along the second end cover toward the first end cover, and the protrusions are arranged around the side wall of the cylinder.
4. The low-weight buffer cylinder according to claim 1, characterized in that: The plane where the side wall of the cylinder barrel located in the accommodating space is located is perpendicular to the plane where the second end cover is located, the thickness of the side wall of the cylinder barrel away from the accommodating space gradually increases along the first end cover toward the second end cover, and the surface of the side wall of the cylinder barrel away from the accommodating space is smooth.
5. The low-weight buffer cylinder according to claim 1, characterized in that: The cylinder comprises a plurality of first reinforcement members, and the first reinforcement members are detachably connected to a side wall of the cylinder away from the accommodating space.
6. The low-weight buffer cylinder according to claim 5, characterized in that: The first reinforcement members are sleeved on the side wall of the cylinder, and the thickness of the first reinforcement members gradually increases from the first end cover to the second end cover.
7. The low-weight buffer cylinder according to claim 5, characterized in that: A plurality of the first reinforcement members are arranged in sequence along the second end cover toward the first end cover, and ends of adjacent first reinforcement members abut against each other.
8. The low-weight buffer cylinder according to claim 1, characterized in that: The cylinder includes a second reinforcement member, which is sleeved on the side wall of the cylinder away from the accommodating space, and the second reinforcement member is detachably connected to the cylinder, the second reinforcement member is abutted against the second end cover, and the thickness of the second reinforcement member gradually increases from the first end cover to the second end cover.
9. The low-weight buffer cylinder according to claim 1, characterized in that: The sliding rod is fitted with the side wall of the through hole, and the sliding rod is slidably connected with the through hole.
10. The low-weight buffer cylinder according to claim 1, characterized in that: The width of the stopper is greater than the diameter of the through hole.