Telescopic gas spring drag reduction and heat reduction structure

Abstract

The utility model relates to retractable air spring technical field discloses a retractable air spring drag reduction heat reduction structure, including the casing, the one side of casing is inserted with the slide and is inserted to the insert post, and the one end of insert post is rotated and is connected with the rotating ring through the bearing, the one end of insert post is fixed with the piston, and the outer surface of piston is fixed with the third sealing ring of sleeve joint, the inside slide of insert post is inserted with the rotating insert post, through setting up a plurality of air holes on the piston outer surface, and cooperate adjustable rotating and adjust the work shape block, make the air hole opening number controllable, to realize the flexible adjustment to air spring telescopic resistance, through the even distribution aluminum alloy heat dissipation block in the casing periphery, the heat dissipation efficiency of device is improved significantly, reduces the heat accumulation produced because of frequent telescoping, makes this device have the advantage in the adjustment resistance and heat dissipation, can improve the overall service life of device.

Description

Technical Field

[0001] This utility model relates to the field of telescopic gas spring technology, specifically a telescopic gas spring drag reduction and heat reduction structure. Background Technology

[0002] Existing gas springs are widely used in the lifting, buffering, and support structures of various equipment, offering advantages such as simple structure, rapid response, no need for an external power source, and convenient installation. They primarily rely on high-pressure gas within a sealed cavity as the elastic medium, providing elastic support or buffering force during piston rod extension and retraction. They are widely used in office furniture, automotive trunks, industrial equipment, medical devices, and other fields.

[0003] When existing gas springs are in operation, the resistance between strokes is relatively large after the internal nitrogen is filled, and the resistance cannot be adjusted. If multiple extension and contraction adjustments are made in a short period of time, the friction generated by the resistance will produce a lot of heat. Since the gas spring does not have a heat dissipation component, the service life of the gas spring is greatly reduced.

[0004] Therefore, it is necessary to design a telescopic gas spring drag reduction and heat reduction structure to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a telescopic gas spring drag reduction and heat reduction structure to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a telescopic gas spring drag reduction and heat reduction structure, comprising a housing, a plug slidably inserted into one side of the housing, and a rotating ring rotatably connected to one end of the plug via a bearing, a piston fixedly connected to one end of the plug, and a third sealing ring fixedly fitted onto the outer surface of the piston, a rotating plug slidably inserted into the inside of the plug, and a rotating adjusting I-block fixedly connected to one end of the rotating plug, the rotating adjusting I-block being rotatably engaged inside the piston, and four cross-shaped vent holes being opened on the outer surface of the piston, and two other symmetrical vent holes being opened on the outer surface of the rotating adjusting I-block, and multiple circumferentially distributed aluminum alloy heat sinks fixedly inserted into the outer surface of the housing, a sliding groove being opened inside one of the aluminum alloy heat sinks, and a limiting ring slidably disposed inside the housing, with a threaded sleeve fixedly connected to the outer surface of the limiting ring, a screw rotatably connected inside the sliding groove, and a knob fixedly connected to one end of the screw, the threaded sleeve being threadedly fitted onto the outer surface of the screw.

[0007] Preferably, the outer surface of the insert post has four threaded holes arranged in a cross shape, and the outer surface of the rotating ring has two symmetrical threaded holes. Two fixing bolts are threaded into the outer surface of the rotating ring, and the rotating ring is threadedly connected to one end of the insert post through the two fixing bolts.

[0008] Preferably, the threaded sleeve is slidably inserted into the inside of the groove, and the outer surface of the threaded sleeve is in contact with the inner wall of the groove.

[0009] Preferably, all of the vent holes are located within the inner rings of the limiting ring and the third sealing ring, and the outer surface of the rotating adjusting block is in contact with the inner wall of the piston.

[0010] Preferably, a plurality of first sealing rings are embedded inside one side of the housing, and the outer surface of the insert is in contact with the inner wall of the plurality of first sealing rings.

[0011] Preferably, a plurality of second sealing rings are embedded inside one of the aluminum alloy heat sinks, and the outer surface of one end of the screw is in contact with the inner wall of the plurality of second sealing rings.

[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0013] 1. This utility model provides multiple vent holes on the outer surface of the piston, and uses an adjustable rotating adjustment block to control the number of vent holes that can be opened, thereby enabling flexible adjustment of the gas spring's extension and contraction resistance. By evenly distributing aluminum alloy heat sinks around the outer periphery of the housing, the heat dissipation efficiency of the device is significantly improved, reducing heat accumulation caused by frequent extension and contraction. This gives the device advantages in resistance adjustment and heat dissipation, and can improve the overall service life of the device.

[0014] 2. This utility model achieves precise control of the piston's extension and retraction range by setting a linkage structure between a limiting ring and a threaded sleeve block, and using a knob to adjust the stroke length. In addition, multiple sealing rings are used to ensure good sealing and sliding stability of the insert, piston, and adjustment components. The overall structure is reasonable, the performance is stable, and the service life and adaptability of the gas spring are significantly improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the shell structure of this utility model;

[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0019] In the diagram: 1. Housing; 2. Aluminum alloy heat sink; 3. Insert post; 4. Rotating ring; 5. Fixing bolt; 7. Threaded sleeve; 8. Screw; 9. Piston; 10. Rotating adjustment block; 11. Rotating insert post; 12. Limiting ring; 13. First sealing ring; 14. Second sealing ring; 15. Knob; 17. Third sealing ring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figure 1-4This utility model provides a telescopic gas spring drag reduction and heat reduction structure, including a housing 1. A plug 3 is slidably inserted into one side of the housing 1, and one end of the plug 3 is rotatably connected to a rotating ring 4 via a bearing. A piston 9 is fixedly connected to one end of the plug 3, and a third sealing ring 17 is fixedly sleeved on the outer surface of the piston 9. A rotating plug 11 is slidably inserted into the inside of the plug 3, and a rotating adjusting I-shaped block 10 is fixedly connected to one end of the rotating plug 11. The rotating adjusting I-shaped block 10 is rotatably engaged inside the piston 9. Four cross-shaped vent holes are opened on the outer surface of the piston 9, and two symmetrical vent holes are opened on the outer surface of the rotating adjusting I-shaped block 10. Multiple circumferentially distributed aluminum alloy heat sinks 2 are fixedly inserted into the outer surface of the housing 1. A sliding groove is opened inside one of the aluminum alloy heat sinks 2, and a limit ring 12 is slidably provided inside the housing 1. A threaded sleeve 7 is fixedly connected to the outer surface of the limiting ring 12. A screw 8 is rotatably connected inside the slide groove, and a knob 15 is fixedly connected to one end of the screw 8. The threaded sleeve 7 is threaded onto the outer surface of the screw 8. By rotating the knob 15, the limiting ring 12, which is located between the piston 9 and the inner cavity of the insert 3, can slide, thereby adjusting the extension and retraction length of the piston 9 inside the insert 3, and thus positioning the overall degree of contraction. At the same time, by rotating the rotating ring 4, the rotation adjustment I-shaped block 10 inside the piston 9 can be adjusted, thereby setting the number of vent holes between the piston 9 and the insert 3 to four or two. The number of vent holes can be used to adjust the overall resistance of the device. The use of multiple aluminum alloy heat sinks 2 improves the heat dissipation effect of the device, thereby providing heat dissipation for the friction generated when the device extends and retracts multiple times in a short period of time, thus improving the service life of the device.

[0023] To facilitate the limiting adjustment of the rotational position of the rotating insertion post 11 inside the insertion post 3, thereby allowing the connection between the piston 9 and the vent hole of the rotating adjustment block 10 to be adjusted, four threaded holes distributed in a cross pattern are provided on the outer surface of the insertion post 3, and two symmetrical threaded holes are provided on the outer surface of the rotating ring 4. Two fixing bolts 5 are threadedly inserted into the outer surface of the rotating ring 4, and the rotating ring 4 is threadedly connected to one end of the insertion post 3 through the two fixing bolts 5.

[0024] To improve the sliding stability of the threaded sleeve 7 inside the groove, the threaded sleeve 7 is slidably inserted into the inside of the groove, and the outer surface of the threaded sleeve 7 is in contact with the inner wall of the groove.

[0025] To improve ventilation between the multiple vent holes, all the vent holes are located within the inner rings of the limiting ring 12 and the third sealing ring 17, and the outer surface of the rotating adjusting block 10 is in contact with the inner wall of the piston 9.

[0026] In order to improve the sealing performance of the insertion post 3 sliding on the housing 1, a plurality of first sealing rings 13 are embedded inside one side of the housing 1, and the outer surface of the insertion post 3 is in contact with the inner wall of the plurality of first sealing rings 13.

[0027] To improve the sealing performance of the screw 8 rotating and adjusting on an aluminum alloy heat sink 2, a plurality of second sealing rings 14 are embedded inside the aluminum alloy heat sink 2, and the outer surface of one end of the screw 8 is in contact with the inner wall of the plurality of second sealing rings 14.

[0028] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0029] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0030] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A telescopic gas spring drag reduction and heat reduction structure, comprising a housing (1), characterized in that: A plug (3) is slidably inserted into one side of the housing (1), and a rotating ring (4) is rotatably connected to one end of the plug (3) via a bearing. A piston (9) is fixedly connected to one end of the plug (3), and a third sealing ring (17) is fixedly fitted onto the outer surface of the piston (9). A rotating plug (11) is slidably inserted into the inside of the plug (3), and a rotating adjusting I-block (10) is fixedly connected to one end of the rotating plug (11). The rotating adjusting I-block (10) is rotatably engaged inside the piston (9), and four cross-shaped openings are provided on the outer surface of the piston (9). The outer surface of the rotating adjustment block (10) has two other symmetrical ventilation holes. Multiple circumferentially distributed aluminum alloy heat sinks (2) are fixedly inserted into the outer surface of the housing (1). A sliding groove is provided inside one of the aluminum alloy heat sinks (2). A limit ring (12) is slidably provided inside the housing (1). A threaded sleeve (7) is fixedly connected to the outer surface of the limit ring (12). A screw (8) is rotatably connected inside the sliding groove. A knob (15) is fixedly connected to one end of the screw (8). The threaded sleeve (7) is threaded onto the outer surface of the screw (8).

2. The telescopic gas spring drag reduction and heat dissipation structure according to claim 1, characterized in that: The outer surface of the insert (3) is provided with four threaded holes arranged in a cross shape, and the outer surface of the rotating ring (4) is provided with two symmetrical threaded holes. Two fixing bolts (5) are threadedly inserted into the outer surface of the rotating ring (4). The rotating ring (4) is threadedly connected to one end of the insert (3) through the two fixing bolts (5).

3. The telescopic gas spring drag reduction and heat dissipation structure according to claim 1, characterized in that: The threaded sleeve (7) is slidably inserted into the inside of the groove, and the outer surface of the threaded sleeve (7) is in contact with the inner wall of the groove.

4. The telescopic gas spring drag reduction and heat dissipation structure according to claim 1, characterized in that: The multiple vent holes are located on the inner rings of the limiting ring (12) and the third sealing ring (17), and the outer surface of the rotating adjusting block (10) is in contact with the inner wall of the piston (9).

5. The telescopic gas spring drag reduction and heat dissipation structure according to claim 1, characterized in that: A plurality of first sealing rings (13) are embedded in one side of the housing (1), and the outer surface of the insert (3) is in contact with the inner wall of the plurality of first sealing rings (13).

6. The telescopic gas spring drag reduction and heat dissipation structure according to claim 1, characterized in that: A plurality of second sealing rings (14) are embedded inside the aluminum alloy heat sink (2), and the outer surface of one end of the screw (8) is in contact with the inner wall of the plurality of second sealing rings (14).

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