Corrosion-resistant anti-falling aluminum alloy mini air cylinder

By employing a ceramic coating and anti-detachment mechanism on the mini cylinder, the problems of loose and corroded threaded connections are solved, achieving corrosion resistance and anti-detachment effects, and extending service life.

CN224064617UActive Publication Date: 2026-03-31WEZHOU AIMAI PNEUMATIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing mini cylinders are prone to loosening of threaded connections in vibration and corrosive environments, affecting normal operation, and the aluminum alloy material is susceptible to corrosion damage.

Method used

It adopts a ceramic material coating and an anti-detachment mechanism, including a frame, slide bar, clamping plate and diamond block, combined with a buffer mechanism to prevent the vent joint from loosening, and a rubber buffer pad to buffer the piston impact force.

Benefits of technology

It effectively prevents the vent joint from loosening, improves corrosion resistance, extends service life, and ensures normal cylinder operation and piston component protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mini air cylinders, in particular to a corrosion-resistant anti-falling aluminum alloy mini air cylinder which comprises a cylinder body, a front end body is fixedly installed at one end of the cylinder body, a rear end body is fixedly installed at the other end of the cylinder body, and a piston rod is movably installed in the cylinder body. According to the utility model, the anti-falling mechanism is arranged, so that the ventilation joint can be clamped and fixed, and the subsequent ventilation joint is prevented from loosening due to vibration influence; due to the fact that the corrosion-resistant coating is arranged to be matched with the performance of an aluminum alloy material, the corrosion-resistant performance of the mini air cylinder can be effectively improved, and due to the fact that the buffering cushion, the buffering spring, the elastic pieces and the like are arranged, the impact force of the piston body can be well buffered, and the service life of the mini air cylinder is prolonged. And the service life of the piston body is effectively prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of mini cylinder technology, specifically a corrosion-resistant and anti-detachment aluminum alloy mini cylinder. Background Technology

[0002] Miniature cylinders generally refer to cylinders with small diameter and stroke, and a smaller cylinder appearance design. The cylinder body of miniature cylinders is mainly made of cast iron or aluminum alloy. Aluminum alloy cylinders have higher cost, but are lighter and have better corrosion resistance, and are widely used.

[0003] In the prior art, such as the novel aluminum alloy mini cylinder proposed in patent application number "CN202321121419.3", a connecting component is fixedly installed at the end of the piston rod away from the cylinder body. A wear-resistant layer is provided on the inner wall surface of the cylinder body. A first slot is opened on the outer diameter surface of the piston. A second slot is opened on one side of the first slot. A first wear-resistant ring is fixedly installed inside the first slot. A second wear-resistant ring is fixedly installed inside the second slot. This makes the installation of the mini cylinder more convenient, while improving the wear resistance of the cylinder body and piston, thereby increasing the service life of the mini cylinder.

[0004] However, in the aforementioned patent application, when using the mini cylinder, the external vent connector needs to be rotated into the inlet and outlet ports on the mini cylinder. The connection and fixation method is a threaded connection. However, since vibration is inevitable when the mini cylinder is running, it is easy to affect the stability of the threaded connection after a long period of time, causing the external vent connector to loosen. In addition, when the environment in which the mini cylinder is used contains corrosive substances, it is easily corroded and damaged, affecting the normal operation and use of the aluminum alloy mini cylinder. Utility Model Content

[0005] The purpose of this invention is to provide a corrosion-resistant and anti-detachment aluminum alloy mini cylinder to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A corrosion-resistant and anti-detachment aluminum alloy mini cylinder includes a cylinder body, a front end body fixedly mounted at one end of the cylinder body, a rear end body fixedly mounted at the other end of the cylinder body, a piston rod movably mounted inside the cylinder body, a piston body fixedly mounted at one end of the piston rod located inside the cylinder body, a threaded connector fixedly mounted at the end of the piston rod away from the piston body, air inlet and outlet holes penetrating through the outer walls of both the front end body and the rear end body, an anti-detachment mechanism provided on the outer walls of both the front end body and the rear end body, a buffer mechanism provided inside the cylinder body near one end, and a corrosion-resistant coating, the corrosion-resistant coating being a ceramic material, being coated on the outer walls of both the cylinder body and the piston rod.

[0008] The anti-detachment mechanism includes two frames, each of which is fixedly installed on the outer wall of the front end. Two sliding rods are fixedly installed inside each of the two frames. Two clamping plates are movably sleeved between the four sliding rods. The buffer mechanism includes a connecting body, which is fixedly installed on the inner wall of the cylinder. A movable rod is inserted into the outer wall of the connecting body.

[0009] Preferably, each of the four slide rods is fitted with a support spring near both ends, and each of the two inner sidewalls of the two frames is fixedly mounted with an mounting plate.

[0010] Preferably, each of the four mounting plates has a screw fixedly mounted on its outer side wall, and each of the four screws has a diamond-shaped block threaded onto its outer side.

[0011] Preferably, the outer wall of the rhombus block is rotatably connected to movable wheels via shafts near the four corners, and the inner walls of the two clamping plates are provided with several anti-slip grooves.

[0012] Preferably, a buffer pad is fixedly installed at one end of the movable rod, and a circular plate is fixedly connected at the end of the movable rod away from the buffer pad and located inside the connecting body.

[0013] Preferably, the inner wall of the connecting body is fixedly connected with a buffer spring and several spring plates, and one end of the buffer spring and several spring plates is fixedly connected to the circular plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. In this utility model, rotating the rhombus block along the screw causes it to rotate from a vertical position to a horizontal position. The position of the rhombus block is locked and fixed with the screw, which can push the clamping plate to move along the sliding rod installed in the frame. Similarly, it can move the other clamping plate, bringing the two clamping plates closer together to clamp and fix the venting connector. This prevents the venting connector from loosening due to vibration, which would affect the normal ventilation of the corrosion-resistant and anti-detachment aluminum alloy mini cylinder and cause it to malfunction. Furthermore, the mini cylinder is made of aluminum alloy, which has excellent corrosion resistance. Aluminum oxide has high hardness, good wear resistance, and corrosion resistance, which can further improve the corrosion resistance. This gives the mini cylinder excellent corrosion resistance, preventing corrosive substances in the external environment from damaging the mini cylinder and affecting its normal use.

[0016] 2. In this utility model, when the piston moves inside the cylinder, it continuously compresses the buffer pad. Since the buffer pad is made of rubber elastic material, it can initially buffer the impact force of the piston and cause the buffer pad to move closer to the connecting body. The circular plate moves along the inside of the connecting body and compresses the buffer spring and the spring sheet. Under the action of the rebound force of the buffer spring and each spring sheet, it can drive the circular plate to move in the opposite direction, which can effectively buffer the impact force of the piston and achieve the protection of the piston, avoid the piston from continuous movement and impact, and prevent damage, thus effectively extending the service life of the piston. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the cylinder body in this utility model;

[0020] Figure 3 This is a schematic diagram of the front end body in this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a cross-sectional view of the connector in this utility model.

[0023] The attached figures are labeled as follows:

[0024] 1. Cylinder block; 2. Front end body; 3. Rear end body; 4. Threaded connector; 5. Piston rod; 6. Air inlet and outlet ports; 7. Piston body; 8. Connector; 9. Buffer pad; 10. Frame; 11. Clamping plate; 12. Slide rod; 13. Mounting plate; 14. Diamond block; 15. Screw; 16. Playing wheel; 17. Playing rod; 18. Spring; 19. Circular plate; 20. Buffer spring. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] A corrosion-resistant and anti-detachment aluminum alloy mini cylinder, such as Figures 1-5 As shown, the system includes a cylinder body 1, a front end body 2 fixedly mounted at one end of the cylinder body 1, a rear end body 3 fixedly mounted at the other end of the cylinder body 1, a piston rod 5 movably mounted inside the cylinder body 1, a piston body 7 fixedly mounted at one end of the piston rod 5 located inside the cylinder body 1, and a threaded connector 4 fixedly mounted at the end of the piston rod 5 away from the piston body 7. Air inlet and outlet holes 6 are provided through the outer walls of both the front end body 2 and the rear end body 3. Anti-detachment mechanisms are provided on the outer walls of both the front end body 2 and the rear end body 3. A buffer mechanism is provided inside the cylinder body 1 near one end. The outer walls of both the cylinder body 1 and the piston rod 5 are coated with a corrosion-resistant coating made of ceramic material. The anti-detachment mechanism includes two frames 10, both of which are fixedly mounted on the outer wall of the front end body 2. Two sliding rods 12 are fixedly mounted inside each of the two frames 10. Two clamping plates 11 are movably sleeved between the four sliding rods 12. The buffer mechanism includes a connecting body 8, which is fixedly mounted on the inner wall of the cylinder body 1. A movable rod 17 is inserted into the outer wall of the connecting body 8.

[0027] The ceramic material is made of alumina, and the mini cylinder is made of aluminum alloy. Because aluminum alloy has excellent corrosion resistance, and alumina has high hardness, good wear resistance, and corrosion resistance, when the piston rod 5 moves, the ceramic material coating can withstand friction and further improve corrosion resistance, so that the mini cylinder has excellent corrosion resistance, avoiding damage to the mini cylinder by corrosive substances in the external environment and affecting normal use. The corrosion-resistant and anti-detachment aluminum alloy mini cylinder can be connected and fixed to the part to be installed through the threaded connector 4. The inner walls of the air inlet and outlet holes 6 on the front end body 2 and the rear end body 3 are provided with threads that fit with the external air connector.

[0028] Each of the four sliding rods 12 is fitted with a support spring near both ends. Mounting plates 13 are fixedly installed on the inner walls of both frames 10. Screws 15 are fixedly installed on the outer walls of the four mounting plates 13. Each of the four screws 15 is threaded with a rhombus-shaped block 14. The rhombus-shaped block 14 is initially in a vertical position, with the two clamping plates 11 separated. The outer walls of the clamping plates 11 are in close contact with the movable wheels 16 on the short corners of the rhombus-shaped blocks 14. Subsequently, rotating each rhombus-shaped block 14 to a horizontal position allows the two clamping plates to... When the plates 11 are brought closer together, the support springs are stretched accordingly. After the rhombus block 14 is rotated back to the vertical position, the two clamping plates 11 can be separated from each other and reset under the action of the rebound force of the support spring. The inner wall of the connection between the rhombus block 14 and the screw 15 installed on the mounting plate 13 is provided with a thread that matches the screw 15. After the rhombus block 14 is rotated to the horizontal position, it can be locked and fixed with the screw 15 under the cooperation of the thread, which helps to fix the position of the two clamping plates 11.

[0029] The outer wall of the rhombus block 14 is connected to movable wheels 16 via shafts near the four corners. The inner walls of the two clamping plates 11 are provided with several anti-slip grooves. The anti-slip grooves can increase the friction between the clamping plates 11 and the external venting connector, making the clamping plates 11 clamp the venting connector more stably.

[0030] In use, the external vent connector is rotated into the inlet / outlet hole 6. The outer wall of the external vent connector has threads that mate with the inner wall of the inlet / outlet hole 6. Through the thread engagement, the external vent connector is fixedly connected within the inlet / outlet hole 6. Then, the rhombus block 14 is rotated along the screw 15, causing it to rotate from a vertical position to a horizontal position. During rotation, the movable wheel 16 moves along the outer wall of the clamping plate 11, reducing friction between the rhombus block 14 and the clamping plate 11, resulting in smoother rotation of the rhombus block 14. The thread on the inner wall of the engagement point between the diamond block 14 and the screw 15 allows the diamond block 14 to be locked and fixed to the screw 15. This allows the clamping plate 11 to move along the slide rod 12 installed inside the frame 10. Similarly, it allows the other clamping plate 11 to move, bringing the two clamping plates 11 closer together to clamp and fix the vent connector. This prevents the vent connector from loosening due to vibration, which would affect the normal ventilation of the corrosion-resistant and anti-detachment aluminum alloy mini cylinder and cause it to malfunction.

[0031] A buffer pad 9 is fixedly installed at one end of the movable rod 17. A circular plate 19 is fixedly connected to the end of the movable rod 17 away from the buffer pad 9 and located inside the connecting body 8. A buffer spring 20 and several spring pieces 18 are fixedly connected to the inner wall of the connecting body 8, and one end of the buffer spring 20 and several spring pieces 18 are fixedly connected to the circular plate 19.

[0032] Specifically, external vent connectors are connected to the two inlet and outlet ports 6 respectively, which can supply air to the cylinder 1 and drive the piston 7 to move, thereby causing the piston rod 5 to extend and retract inside the cylinder 1. This is existing technology and will not be elaborated further. When the piston 7 moves inside the cylinder 1, it continuously compresses the buffer pad 9. Since the buffer pad 9 is made of rubber elastic material, it can initially buffer the impact force of the piston 7 and cause the buffer pad 9 to move closer to the connecting body 8. The movable rod 17 moves with the buffer pad 9, driving the circular plate 19 to move along the inside of the connecting body 8 and compressing the buffer spring 20 and the spring sheet 18. Then, under the action of the rebound force of the buffer spring 20 and each spring sheet 18, the circular plate 19 can be driven to move in the opposite direction, thereby effectively buffering the impact force of the piston 7, achieving the protection of the piston 7, avoiding damage caused by the continuous movement and impact of the piston 7, and effectively extending the service life of the piston 7.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A corrosion resistant anti-extrusion aluminum alloy mini cylinder comprising a cylinder body (1), characterized in that, The cylinder (1) one end fixedly installed with front end body (2), the cylinder (1) the other end fixedly installed with rear end body (3), the cylinder (1) inside movablely installed with piston rod (5), the piston rod (5) one end and located inside the cylinder (1) position fixedly installed with piston body (7), the piston rod (5) away from the piston body (7) one end fixedly installed with threaded connector (4), the front end body (2) and rear end body (3) outer wall are all through the inlet and outlet hole (6) is set, the front end body (2) and rear end body (3) outer wall are all provided with anti-off mechanism, the cylinder (1) inside is close to the position of one end and is provided with buffer mechanism, the cylinder (1) and piston rod (5) outer wall are all coated with corrosion-resistant coating, the corrosion-resistant coating is ceramic material; The anti-off mechanism includes two frames (10), two the frame (10) inside are all fixedly installed in the outer wall position of front end body (2), two the frame (10) inside are all fixedly installed with two slide rods (12), four the slide rod (12) outside between movable sleeve is connected with two clamping plates (11); The buffer mechanism includes a connecting body (8), the connecting body (8) is fixedly installed on the inner wall of the cylinder (1), and the outer side wall of the connecting body (8) is inserted with a movable rod (17).

2. The corrosion resistant, non-extruding aluminum alloy mini cylinder of claim 1, wherein, Four the slide rod (12) outside close to two end positions are all set with supporting spring, two the frame (10) two inner side walls are all fixedly installed with mounting plate (13).

3. The corrosion resistant, non-extruding aluminum alloy mini cylinder of claim 2, wherein, Four the mounting plate (13) outer side wall is all fixedly installed with screw rod (15), four the screw rod (15) outside are all threaded sleeve is connected with diamond block (14).

4. The corrosion resistant, non-extruding aluminum alloy mini cylinder of claim 3, wherein, The diamond block (14) outer wall close to four corner positions are all connected with movable wheel (16) through shaft rod, two the clamping plate (11) inner wall are all provided with a plurality of anti-skid grooves.

5. The corrosion resistant, non-extruding aluminum alloy mini cylinder of claim 1, wherein, The movable rod (17) one end fixedly installed with buffer pad (9), the movable rod (17) away from the buffer pad (9) one end and located in the connecting body (8) inside position fixedly connected with round plate (19).

6. The corrosion resistant, non-extruding aluminum alloy mini cylinder of claim 5, wherein, The connecting body (8) inner wall fixedly connected with buffer spring (20) and a plurality of elastic sheets (18), and the buffer spring (20) and a plurality of elastic sheets (18) one end are all connected with the round plate (19).

Citation Information

Patent Citations

  • Novel aluminum alloy mini air cylinder

    CN219911358U