Gas spring cylinder

Abstract

The utility model discloses a gas spring cylinder, which relates to the technical field of mechanical parts and comprises a cylinder body, a piston and a piston rod, the piston is movably clamped in the cylinder body, the piston rod is slidably inserted at one end of the cylinder body, a slag pushing mechanism is arranged on the piston and the piston rod, and a telescopic structure is arranged at one end of the piston rod outside the cylinder body. The piston and the piston rod are integrally formed, strip-shaped holes are formed in the middle of the piston and the middle of the piston rod, the slag pushing mechanism is installed at the strip-shaped holes and comprises a fixing plate fixed to the middle of the strip-shaped holes, a threaded rod is connected to the fixing plate in a threaded mode, and a rotating block is connected to the top end of the threaded rod. According to the gas spring, by means of the slag pushing mechanism and the telescopic structure, foreign matter on the inner wall of the cylinder body can be scraped and pushed out of the cylinder body, so that the foreign matter is prevented from being clamped between the piston and the inner wall of the cylinder body, the sealing effect is guaranteed, and normal use of the gas spring is guaranteed; and the use requirements under different conditions are met.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical components, in particular to a gas spring cylinder. Background Art

[0002] In the existing gas spring in use, one end of the piston rod is inserted into the pressure cylinder, and the other end is exposed outside. During the long-term use of the existing gas spring, foreign matters will appear in the pressure cylinder due to wear, which is likely to cause foreign matters to get stuck between the piston and the inner wall of the cylinder body, resulting in a decrease in the piston seal performance, and it is not convenient to clean the gas spring, affecting the use of the gas spring. Therefore, a gas spring cylinder is provided herein. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a gas spring cylinder. Through the provided slag pushing mechanism and telescopic structure, not only can the foreign matters on the inner wall of the cylinder body be scraped off and pushed out of the cylinder body, thereby avoiding foreign matters from getting stuck between the piston and the inner wall of the cylinder body, ensuring the sealing effect, guaranteeing the normal use of the gas spring, but also the length of the piston rod of the gas spring can be adjusted to meet the use requirements under different conditions, overcoming the deficiencies of the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] The gas spring cylinder includes a cylinder body, a piston and a piston rod. The piston is movably clamped in the cylinder body, and the piston rod is slidably inserted into one end of the cylinder body. A slag pushing mechanism is arranged on the piston and the piston rod. One end of the piston rod located outside the cylinder body is provided with a telescopic structure, and the other end of the cylinder body is connected with a sealing sleeve;

[0006] The piston and the piston rod are integrally formed, and a strip-shaped hole is arranged in the middle of the piston and the piston rod. The slag pushing mechanism is installed at the strip-shaped hole.

[0007] Through the above scheme, through the provided slag pushing mechanism and telescopic structure, not only can the foreign matters on the inner wall of the cylinder body be scraped off and pushed out of the cylinder body, thereby avoiding foreign matters from getting stuck between the piston and the inner wall of the cylinder body, ensuring the sealing effect, guaranteeing the normal use of the gas spring, but also the length of the piston rod of the gas spring can be adjusted to meet the use requirements under different conditions.

[0008] Preferably, the slag pushing mechanism includes a fixing plate fixed in the middle of the strip-shaped hole. A screw rod is screwed on the fixing plate. The top end of the screw rod is connected with a rotating block, and the bottom end of the screw rod is provided with a sealing plate. The sealing plate is located below the piston.

[0009] Preferably, a sealing ring is embedded on the side edge of the upper end surface of the sealing plate, and the side wall of the sealing plate is slidably clamped with the inner wall of the cylinder body.

[0010] Preferably, the telescopic structure includes two adjusting rods, the tops of the two adjusting rods are connected with a top block, and two symmetrically arranged clamping grooves are formed at the top end of the outer wall of the piston rod, and the two adjusting rods are respectively clamped in the two clamping grooves.

[0011] Preferably, the telescopic structure further includes insertion holes formed at equal intervals on the two clamping grooves, T-shaped holes are formed at the bottoms of the two adjusting rods, a first bolt is inserted into the two T-shaped holes, a nut is screwed at one end of the first bolt, and the first bolt is respectively inserted into the insertion holes of the two clamping grooves.

[0012] Preferably, four insertion holes on the two clamping grooves are arranged at equal intervals.

[0013] Preferably, the sealing sleeve is sleeved on the end of the cylinder block, and the sealing sleeve is connected with the cylinder block through a second bolt, and convex platforms are arranged at equal intervals on the side of the lower end face of the sealing sleeve.

[0014] Preferably, an air hole is arranged in the middle of the sealing sleeve, and an air filling valve is connected to the lower end of the air hole.

[0015] The beneficial effects of the utility model are as follows:

[0016] Through the arranged slag pushing mechanism and telescopic structure, foreign matters on the inner wall of the cylinder can be scraped off and pushed out of the cylinder, thereby preventing foreign matters from being stuck between the piston and the inner wall of the cylinder, ensuring the sealing effect, guaranteeing the normal use of the gas spring, and the length of the piston rod of the gas spring can be adjusted to meet the use requirements under different conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic perspective structure diagram of the first perspective of the gas spring cylinder proposed by the utility model.

[0018] Figure 2 FIG. 2 is a schematic perspective structure diagram of the second perspective of the gas spring cylinder proposed by the utility model.

[0019] Figure 3 FIG. 3 is a schematic partial sectional structure diagram of the gas spring cylinder proposed by the utility model.

[0020] Figure 4 FIG. 4 is a schematic structure diagram of the piston rod of the gas spring cylinder proposed by the utility model.

[0021] Figure 5 FIG. 5 is a schematic structure diagram of the adjusting rod and the top block of the gas spring cylinder proposed by the utility model.

[0022] Figure 6 FIG. 6 is a schematic enlarged structure diagram of the Figure 3 A position in the gas spring cylinder proposed by the utility model.

[0023] In the figure: 1, cylinder block; 2, piston rod; 3, adjusting rod; 4, sealing sleeve; 5, boss; 6, gas filling valve; 7, top block; 8, screw; 9, sealing plate; 10, sealing ring; 11, piston; 12, clamping groove; 13, jack; 14, strip hole; 15, T-shaped hole; 16, nut; 17, fixing plate; 18, first bolt; 19, rotating block. Specific implementation mode

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Example 1, referring to Figures 1-6 , a gas spring cylinder, including a cylinder block 1, a piston 11 and a piston rod 2, the piston 11 is movably clamped in the cylinder block 1, the piston rod 2 is slidably inserted at one end of the cylinder block 1, a slag pushing mechanism is arranged on the piston 11 and the piston rod 2, a telescopic structure is arranged at the end of the piston rod 2 located outside the cylinder block 1, and a sealing sleeve 4 is connected to the other end of the cylinder block 1;

[0026] The piston 11 and the piston rod 2 are integrally formed, and a strip hole 14 is arranged in the middle of the piston 11 and the piston rod 2, and the slag pushing mechanism is installed at the strip hole 14;

[0027] The slag pushing mechanism includes a fixing plate 17 fixed in the middle of the strip hole 14, a screw 8 is screwed on the fixing plate 17, the top end of the screw 8 is connected with a rotating block 19, the bottom end of the screw 8 is provided with a sealing plate 9, and the sealing plate 9 is located below the piston 11;

[0028] A sealing ring 10 is embedded on the side of the upper end surface of the sealing plate 9, and the side wall of the sealing plate 9 is slidably clamped with the inner wall of the cylinder block 1. By providing the sealing ring 10, the sealing performance at the connection between the sealing plate 9 and the piston 11 can be ensured;

[0029] The telescopic structure includes two adjusting rods 3, the top ends of the two adjusting rods 3 are connected with a top block 7, two clamping grooves 12 are symmetrically arranged at the top end of the outer wall of the piston rod 2, and the two adjusting rods 3 are respectively clamped in the two clamping grooves 12;

[0030] The telescopic structure further includes jacks 13 arranged equidistantly on the two clamping grooves 12, T-shaped holes 15 are arranged at the bottoms of the two adjusting rods 3, a first bolt 18 is inserted in the two T-shaped holes 15, a nut 16 is screwed at one end of the first bolt 18, the first bolt 18 is respectively inserted in the jacks 13 of the two clamping grooves 12, and four jacks 13 on the two clamping grooves 12 are arranged equidistantly;

[0031] The sealing sleeve 4 is sleeved on the end of the cylinder block 1, and the sealing sleeve 4 is connected to the cylinder block 1 through the second bolt. The side of the lower end face of the sealing sleeve 4 is provided with bosses 5 at equal distances, and an air hole is arranged in the middle of the sealing sleeve 4. The lower end of the air hole is connected with an air filling valve 6.

[0032] Working principle: By regularly removing the sealing sleeve 4 and taking down two adjusting rods 3 from the piston rod 2, using a socket wrench to hold the rotating block 19 and turning the wrench to drive the rotating block 19 and the screw rod 8 to rotate, the foreign matters on the inner wall of the cylinder block 1 are scraped off and pushed out of the cylinder block 1 by the sealing plate 9, so as to prevent the foreign matters from being stuck between the piston and the inner wall of the cylinder block, ensure the sealing effect. After the cleaning is completed, turn the rotating block 19 in the reverse direction and make the sealing plate 9 abut against the end face of the piston 11. Reconnect the sealing sleeve 4 to the cylinder block 1, reconnect the two adjusting rods 3 to the two clamping grooves 12, adjust the distance between the top block 7 and the end of the piston rod 2, then insert the first bolt 18 into the T-shaped hole 15 and the jack hole 13, and tighten the nut 16 with the first bolt 18 to fix the two adjusting rods 3. Add gas into the cylinder block 1 from the air filling valve 6, and the gas spring can be used normally.

[0033] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A gas spring cylinder, comprising a cylinder body (1), a piston (11) and a piston rod (2), characterized in that: The piston (11) is movably engaged in the cylinder body (1), the piston rod (2) is slidably engaged in one end of the cylinder body (1), a slag pushing mechanism is provided on the piston (11) and the piston rod (2), a telescopic structure is provided at one end of the piston rod (2) located outside the cylinder body (1), and the other end of the cylinder body (1) is connected to a sealing sleeve (4); The piston (11) and the piston rod (2) are integrally formed, and a strip hole (14) is provided in the middle of the piston (11) and the piston rod (2), and the slag pushing mechanism is installed at the strip hole (14).

2. The gas spring cylinder according to claim 1, characterized in that: The slag pushing mechanism comprises a fixed plate (17) fixed in the middle of the strip hole (14), a screw rod (8) being screwed onto the fixed plate (17), a rotating block (19) being connected to the top end of the screw rod (8), a sealing plate (9) being arranged at the bottom end of the screw rod (8), and the sealing plate (9) being located below the piston (11).

3. The gas spring cylinder according to claim 2, characterized in that: A sealing ring (10) is embedded on the side of the upper end surface of the sealing plate (9), and the side wall of the sealing plate (9) is slidably engaged with the inner wall of the cylinder body (1).

4. The gas spring cylinder according to claim 1, characterized in that: The telescopic structure comprises two adjusting rods (3), the top ends of the two adjusting rods (3) are connected to a top block (7), the top end of the outer wall of the piston rod (2) is symmetrically provided with two clamping grooves (12), and the two adjusting rods (3) are respectively clamped in the two clamping grooves (12).

5. The gas spring cylinder according to claim 4, characterized in that: The telescopic structure further comprises jacks (13) which are equidistantly arranged on the two slots (12); the bottoms of the two adjustment rods (3) are each provided with a T-shaped hole (15); first bolts (18) are inserted into the two T-shaped holes (15); a nut (16) is screwed onto one end of the first bolt (18); and the first bolts (18) are respectively inserted into the jacks (13) of the two slots (12).

6. The gas spring cylinder according to claim 5, characterized in that: Four insertion holes (13) are arranged at equal distances on the two card slots (12).

7. The gas spring cylinder according to claim 1, characterized in that: The sealing sleeve (4) is sleeved on the end of the cylinder body (1), and the sealing sleeve (4) is connected to the cylinder body (1) via a second bolt, and bosses (5) are arranged at equal distances on the side of the lower end surface of the sealing sleeve (4).

8. The gas spring cylinder according to claim 7, characterized in that: The sealing sleeve (4) is provided with an air hole in the middle, and the lower end of the air hole is connected to an air filling valve (6).

Images