Cleaned gas spring

Abstract

The utility model relates to the technical field of gas spring, specifically relates to a clean gas spring, including gas spring body, the gas spring body includes piston rod, the outside of piston rod is provided with cleaning mechanism, the cleaning mechanism includes end cover, mounting hole, annular groove, cleaning cover, cambered surface, recess and annular protrusion, the end cover sets up one end of gas spring body, the mounting hole sets up the outside of end cover, the annular groove sets up the inside of end cover, the cleaning cover is sleeved in the outside of piston rod, the cambered surface sets up the outside of cleaning cover, the recess sets up one end of cleaning cover, the annular protrusion fixedly connected in the inside of recess. The utility model is used when, the inner wall of cleaning cover and the outer wall of piston rod tightly fit the setting, when piston rod reciprocating telescoping, can clean the outer surface of piston rod, and the dust scraped off can be guided to fall through the setting of cambered surface, and better self -cleaning effect is played.

Description

Technical Field

[0001] This utility model relates to the field of gas spring technology, specifically a clean gas spring. Background Technology

[0002] Gas springs are industrial components that can provide support, cushioning, braking, height adjustment, and angle adjustment. In existing gas springs, the exposed piston rod is not protected and is very prone to accumulating dust. Moreover, the dust-covered piston rod will frequently rub against the sealing guide sleeve. Due to the presence of dust, the friction coefficient during the friction process is high, which can easily lead to damage to the piston rod and the sealing guide sleeve.

[0003] Therefore, a clean gas spring is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a clean gas spring that solves the problem that in existing gas springs, the exposed piston rod is not protected, easily accumulates dust, and the dust-covered piston rod frequently rubs against the sealing guide sleeve. Due to the presence of dust, the friction coefficient during the friction process is high, which can easily lead to damage to the piston rod and the sealing guide sleeve.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a gas spring body, the gas spring body including a piston rod, one end of the piston rod being provided with a connector, and a cleaning mechanism being provided on the outer side of the piston rod. The cleaning mechanism includes an end cap, a mounting hole, an annular groove, a cleaning sleeve, an arc surface, a groove, and an annular protrusion. The end cap is located at one end of the gas spring body, the mounting hole is located on the outer side of the end cap, the annular groove is located inside the end cap, the cleaning sleeve is fitted on the outer side of the piston rod, the arc surface is located on the outer side of the cleaning sleeve, the groove is located at one end of the cleaning sleeve, and the annular protrusion is fixedly connected to the inside of the groove. The cleaning sleeve is made of rubber.

[0006] Preferably, the cleaning sleeve is disposed inside the end cap, and the inner wall of the cleaning sleeve is in close contact with the outer wall of the piston rod.

[0007] Preferably, the annular protrusion is engaged inside the annular groove, and the outer wall of the annular protrusion is in contact with the inner wall of the annular groove.

[0008] Preferably, a fixing mechanism is provided at the connection between the piston rod and the connector. The fixing mechanism includes a connecting post, a first fixing groove, a second fixing groove, a sheath, a retaining ring, a gap groove, a positioning frame, a fixing plate, and a slot. The connecting post is fixedly connected to one end of the connector. The first fixing groove is located on the outside of the connecting post. The second fixing groove is located on the outside of one end of the piston rod. The sheath is fitted onto the outside of the piston rod. The retaining ring is fixedly connected to the outside of the sheath. The gap groove is located between the sheath and the piston rod. The positioning frame is located on the outside of the piston rod. The fixing plate is fixedly connected to the inside of the positioning frame. The slot is located inside the positioning frame.

[0009] Preferably, the retaining ring has an L-shaped cross-section, is placed inside the retaining groove, and the inner wall of the retaining groove is in contact with the outer wall of the retaining ring.

[0010] Preferably, one end of the cleaning sleeve is slidably inserted into the inside of the gap groove, and the sleeve is made of rubber.

[0011] Preferably, the fixing plate is slidably inserted into the first fixing groove and the second fixing groove, and the inner walls of the first fixing groove and the second fixing groove are in contact with the outer wall of the fixing plate.

[0012] Compared with the prior art, this utility model provides a clean gas spring with the following advantages: 1. When in use, the inner wall of the cleaning sleeve fits tightly against the outer wall of the piston rod. As the piston rod reciprocates, it can clean the outer surface of the piston rod, scraping away the dust on the piston rod surface. The scraped dust will be guided to fall off by the curved surface, achieving a better self-cleaning effect.

[0013] 2. After the piston rod retracts, one end of the cleaning sleeve is placed at the port of the gap groove. As the piston rod continues to retract, the cleaning sleeve continues to insert into the gap groove. Through the guide setting of the arc surface, the port of the sleeve is deformed and expanded, and it slides on the arc surface to scrape off the dust accumulated on the arc surface. This prevents dust from accumulating on the arc surface after a long period of stillness, which would lead to a decrease in the cleaning effect of the cleaning sleeve during subsequent use. It also prevents dust from accumulating at the port of the cleaning sleeve, thereby achieving a better self-cleaning effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the annular groove structure of this utility model; Figure 3 This is a schematic diagram of the positioning frame structure of this utility model; Figure 4 This is a schematic diagram of the gap groove position structure of this utility model.

[0015] In the diagram: 1. Gas spring body; 2. Piston rod; 3. Connector; 4. End cap; 5. Mounting hole; 6. Annular groove; 7. Cleaning sleeve; 8. Arc surface; 9. Groove; 10. Annular protrusion; 11. Connecting post; 12. First fixing groove; 13. Second fixing groove; 14. Protective sleeve; 15. Snap ring; 16. Gap groove; 17. Positioning frame; 18. Fixing plate; 19. Snap groove. Detailed Implementation

[0016] 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.

[0017] Example: Please see Figure 1 - Figure 4 This embodiment of a cleaning gas spring includes a gas spring body 1, a piston rod 2, a connector 3 at one end of the piston rod 2, and a cleaning mechanism on the outside of the piston rod 2. The cleaning mechanism includes an end cap 4, a mounting hole 5, an annular groove 6, a cleaning sleeve 7, an arc surface 8, a groove 9, and an annular protrusion 10. The end cap 4 is located at one end of the gas spring body 1, the mounting hole 5 is located on the outside of the end cap 4, the annular groove 6 is located inside the end cap 4, the cleaning sleeve 7 is fitted on the outside of the piston rod 2, the arc surface 8 is located on the outside of the cleaning sleeve 7, the groove 9 is located at one end of the cleaning sleeve 7, and the annular protrusion 10 is fixedly connected to the inside of the groove 9. The cleaning sleeve 7 is made of rubber.

[0018] In use, the end cap 4 is connected to the gas spring body 1 by bolts, and the cleaning sleeve 7 is connected to the annular groove 6 by the annular protrusion 10 and placed inside the end cap 4. The inner wall of the cleaning sleeve 7 is tightly fitted to the outer wall of the piston rod 2. When the piston rod 2 reciprocates, it can clean the outer surface of the piston rod 2 and scrape off the dust on the surface of the piston rod 2. The scraped dust will be guided to fall off by the arc surface 8 and will not accumulate at the connection between the port of the cleaning sleeve 7 and the piston rod 2, thus achieving a better self-cleaning effect.

[0019] Please see Figure 1 - Figure 2 The cleaning sleeve 7 is located inside the end cap 4. The inner wall of the cleaning sleeve 7 is tightly fitted with the outer wall of the piston rod 2. The annular protrusion 10 is engaged inside the annular groove 6. The outer wall of the annular protrusion 10 is fitted with the inner wall of the annular groove 6.

[0020] To better remove the dust after cleaning, a fixing mechanism is provided at the connection between the piston rod 2 and the connector 3. The fixing mechanism includes a connecting post 11, a first fixing groove 12, a second fixing groove 13, a sheath 14, a retaining ring 15, a gap groove 16, a positioning frame 17, a fixing plate 18, and a slot 19. The connecting post 11 is fixedly connected to one end of the connector 3. The first fixing groove 12 is opened on the outside of the connecting post 11. The second fixing groove 13 is opened on the outside of one end of the piston rod 2. The sheath 14 is sleeved on the outside of the piston rod 2. The retaining ring 15 is fixedly connected to the outside of the sheath 14. The gap groove 16 is located between the sheath 14 and the piston rod 2. The positioning frame 17 is located on the outside of the piston rod 2. The fixing plate 18 is fixedly connected to the inside of the positioning frame 17. The slot 19 is located inside the positioning frame 17.

[0021] After the piston rod 2 retracts and is cleaned by the cleaning sleeve 7, one end of the cleaning sleeve 7 slides into the port of the gap groove 16. The piston rod 2 continues to retract, and the cleaning sleeve 7 continues to insert into the gap groove 16. During the insertion process, the arc surface 8 guides the deformation and expansion at the port of the protective sleeve 14, and slides on the arc surface 8 to scrape off the dust accumulated on the arc surface 8. This prevents dust from accumulating on the arc surface 8 after a long period of stillness, which would lead to a decrease in the cleaning effect of the cleaning sleeve 7 during subsequent use. This prevents dust from accumulating at the port of the cleaning sleeve 7, thereby achieving a better self-cleaning effect. When not in use, the piston rod 2 is completely retracted and placed inside the cleaning sleeve 7 and the protective sleeve 14, which can prevent dust from settling on the surface of the piston rod 2. The fixing plate 18 of the positioning frame 17 slides through and inserts into the first fixing groove 12 and the second fixing groove 13 to install and fix the connector 3, and can also install and fix the protective sleeve 14, realizing the effect of replacing the protective sleeve 14. The two retaining rings 15 are connected by screws.

[0022] Please see Figure 3 - Figure 4 The retaining ring 15 has an L-shaped cross-section and is placed inside the retaining groove 19. The inner wall of the retaining groove 19 fits against the outer wall of the retaining ring 15. One end of the cleaning sleeve 7 is slidably inserted into the gap groove 16. The protective sleeve 14 is made of rubber. The fixing plate 18 is slidably inserted through the first fixing groove 12 and the second fixing groove 13. The inner walls of the first fixing groove 12 and the second fixing groove 13 fit against the outer wall of the fixing plate 18.

[0023] The working principle of the above embodiments is as follows: In use, the end cap 4 is connected to the gas spring body 1 by bolts, and the cleaning sleeve 7 is connected to the annular groove 6 by the annular protrusion 10 and placed inside the end cap 4. The inner wall of the cleaning sleeve 7 is tightly fitted to the outer wall of the piston rod 2. When the piston rod 2 reciprocates, it can clean the outer surface of the piston rod 2 and scrape off the dust on the surface of the piston rod 2. The scraped dust will be guided to fall off by the arc surface 8 and will not accumulate at the connection between the port of the cleaning sleeve 7 and the piston rod 2, thus achieving a better self-cleaning effect. After the piston rod 2 is retracted and cleaned by the cleaning sleeve 7, one end of the cleaning sleeve 7 will slide into the port of the gap groove 16. The piston rod 2 continues to retract, and the cleaning sleeve 7 continues to insert into the gap groove 16. During the insertion process, the arc surface 8 guides the deformation and expansion of the port of the protective sleeve 14, and slides on the arc surface 8 to scrape off the dust accumulated on the arc surface 8. This prevents dust from accumulating on the arc surface 8 after a long period of stillness, which would lead to a decrease in the cleaning effect of the cleaning sleeve 7 during subsequent use. This prevents dust from accumulating at the port of the cleaning sleeve 7, thereby achieving a better self-cleaning effect. When not in use, the piston rod 2 is completely retracted and placed inside the cleaning sleeve 7 and the protective sleeve 14, which can prevent dust from falling on the surface of the piston rod 2. The fixing plate 18 of the positioning frame 17 slides through and inserts into the first fixing groove 12 and the second fixing groove 13 to install and fix the connector 3, and can also install and fix the protective sleeve 14, so that the protective sleeve 14 can be replaced. The two retaining rings 15 are connected by screws. The gas spring body 1 can be model QD16-5150N. The structure and working principle of this model are existing technologies and will not be described in detail here.

[0024] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clean-type gas spring, characterized in that: The device includes a gas spring body (1), which includes a piston rod (2). One end of the piston rod (2) is provided with a connector (3). A cleaning mechanism is provided on the outside of the piston rod (2). The cleaning mechanism includes an end cap (4), a mounting hole (5), an annular groove (6), a cleaning sleeve (7), an arc surface (8), a groove (9), and an annular protrusion (10). The end cap (4) is located at one end of the gas spring body (1). The mounting hole (5) is located on the outside of the end cap (4). The annular groove (6) is located inside the end cap (4). The cleaning sleeve (7) is fitted on the outside of the piston rod (2). The arc surface (8) is located on the outside of the cleaning sleeve (7). The groove (9) is located at one end of the cleaning sleeve (7). The annular protrusion (10) is fixedly connected to the inside of the groove (9). The cleaning sleeve (7) is made of rubber.

2. A clean-type gas spring according to claim 1, characterized in that: The cleaning sleeve (7) is located inside the end cap (4), and the inner wall of the cleaning sleeve (7) is in close contact with the outer wall of the piston rod (2).

3. A clean-type gas spring according to claim 2, characterized in that: The annular protrusion (10) is engaged inside the annular groove (6), and the outer wall of the annular protrusion (10) is in contact with the inner wall of the annular groove (6).

4. A clean-type gas spring according to claim 3, characterized in that: A fixing mechanism is provided at the connection between the piston rod (2) and the connector (3). The fixing mechanism includes a connecting column (11), a first fixing groove (12), a second fixing groove (13), a sheath (14), a retaining ring (15), a gap groove (16), a positioning frame (17), a fixing plate (18), and a slot (19). The connecting column (11) is fixedly connected to one end of the connector (3). The first fixing groove (12) is opened on the outside of the connecting column (11). The second fixing groove (13) is opened on the outside of one end of the piston rod (2). The sheath (14) is sleeved on the outside of the piston rod (2). The retaining ring (15) is fixedly connected to the outside of the sheath (14). The gap groove (16) is located between the sheath (14) and the piston rod (2). The positioning frame (17) is located on the outside of the piston rod (2). The fixing plate (18) is fixedly connected to the inside of the positioning frame (17). The slot (19) is located inside the positioning frame (17).

5. A clean-type gas spring according to claim 4, characterized in that: The cross-section of the retaining ring (15) is L-shaped. The retaining ring (15) is placed inside the retaining groove (19), and the inner wall of the retaining groove (19) is in contact with the outer wall of the retaining ring (15).

6. A clean-type gas spring according to claim 4, characterized in that: One end of the cleaning sleeve (7) is slidably inserted into the inside of the gap groove (16), and the protective sleeve (14) is made of rubber.

7. A clean-type gas spring according to claim 4, characterized in that: The fixing plate (18) slides through and inserts into the first fixing groove (12) and the second fixing groove (13), and the inner walls of the first fixing groove (12) and the second fixing groove (13) are in contact with the outer wall of the fixing plate (18).

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