Pneumatic rod

Abstract

The utility model discloses a pneumatic rod, which relates to the field of pneumatic rod devices and comprises a cylinder body, an upper cover is fixedly mounted on the upper surface of the cylinder body, an upper sealing element is mounted at the upper end inside the cylinder body, a guide lantern ring is mounted below the upper sealing element, a piston is mounted below the guide lantern ring, and a piston rod is mounted on the upper surface of the piston. Two sleeves are installed on the upper surface of the guide lantern ring and distributed on the guide lantern ring in an axial symmetry mode, iron sheets are installed at the lower ends of the interiors of the sleeves, springs are installed on the upper surfaces of the iron sheets, permanent magnets are installed at the upper ends of the springs, and connecting rods are installed on the permanent magnets. The permanent magnet, the iron sheet and the sleeve are arranged in the device, early warning can be carried out when the power of an air source is insufficient, safety accidents are avoided, meanwhile, emergency protection measures can be provided when the pneumatic rod is damaged, and the safety of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic rod devices, and in particular to a pneumatic rod. Background Technology

[0002] A pneumatic rod is a mechanical component driven by compressed air, mainly used to push a rod to move. Its working principle is that compressed air is sent into the rod through a valve to form air pressure, thereby pushing the rod to move. Pneumatic rods have the advantages of fast response speed and flexible movement, and are suitable for occasions that require rapid action. Pneumatic rods are mainly composed of components such as cylinder, piston, piston rod and seals.

[0003] Pneumatic struts require an air source to provide power. Generally speaking, there are two types of air sources: compressed air and hydraulic oil. However, in many cases, compressed air is the more commonly used air source because: 1. Compressed air is easy to store and maintain, and can be stored in a container for a long time, saving space; 2. Compressed air has a fast transmission speed and strong power, and is more efficient than hydraulic oil under the same conditions.

[0004] Currently, after a period of use, pneumatic rods will experience varying degrees of insufficient air power due to gas leakage, resulting in weak opening and closing. In severe cases, they may even lose their supporting function. Existing pneumatic rods do not have a warning function when the air power is insufficient, which can lead to safety hazards. At the same time, when the pneumatic rod is damaged during use, the lack of emergency protection measures will cause the pneumatic rod to retract directly into the cylinder, causing a safety accident.

[0005] Therefore, it is necessary to propose a new pneumatic rod to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a pneumatic rod to solve the problems mentioned in the background art, such as the lack of air source power in traditional pneumatic rods after a period of use due to gas dissipation, resulting in weak opening and closing, and even loss of support function in severe cases. Existing pneumatic rods do not have a warning function when the air source power is insufficient, and when the pneumatic rod is damaged during use, there is no emergency protection measure, which causes the pneumatic rod to retract directly into the cylinder, causing a safety accident.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pneumatic rod, comprising a cylinder body, an upper cover fixedly installed on the upper surface of the cylinder body, an upper sealing element installed at the upper end of the inside of the cylinder body, a guide ring installed below the upper sealing element, a piston installed below the guide ring, and a piston rod installed on the upper surface of the piston;

[0008] A sleeve is installed on the upper surface of the guide collar. There are two sleeves, which are symmetrically distributed on the guide collar. An iron plate is installed at the lower end of the sleeve. A spring is installed on the upper surface of the iron plate. A permanent magnet is installed on the upper end of the spring. A connecting rod is installed on the permanent magnet. A fixing block is installed on the upper end of the connecting rod. The fixing block is fixedly connected to the lower surface of the upper seal.

[0009] Preferably, the guide collar has a convex design, a second channel is provided on the guide collar, and the vertical height of the guide collar is lower than that of the sleeve.

[0010] Preferably, the upper seal has a first channel, and the piston rod passes through the first channel and the second channel.

[0011] Preferably, the fixing block is made of hard rubber.

[0012] Preferably, the piston has two air holes, which are symmetrically distributed on the piston and penetrate the piston.

[0013] Preferably, a sealing ring is installed on the outer surface of the piston, and there are two sealing rings, which are evenly distributed on the piston from top to bottom.

[0014] Preferably, the upper surface of the cover is fitted with four fasteners, which are symmetrically distributed in a circle on the upper surface of the cover.

[0015] Preferably, a support rod is installed inside the fixing member, a fixing hole is opened at the lower end of the support rod, a rubber strip is installed at the upper end of the support rod, there are multiple rubber strips evenly distributed on the support rod, and a functional groove is opened on the support rod, the functional groove is designed to be inclined.

[0016] Preferably, a functional ring is installed at the center of the upper cover. The functional ring is annular and is fitted onto the outer surface of the piston rod. The functional ring is made of elastic rubber.

[0017] Preferably, the size of the functional ring corresponds to the functional ring slot, and the functional ring can be engaged in the functional ring slot.

[0018] The technical effects and advantages of this utility model are as follows: In the use of the permanent magnet, iron sheet and sleeve, when the air source power is insufficient, the sleeve will abut against the upper seal. At the same time, the connecting rod presses the spring, causing the permanent magnet and iron sheet to attract each other, so that the piston rod generates a certain resistance when it retracts. When the user feels the resistance when retracting the piston rod, it means that the air source power in the cylinder is insufficient and needs to be repaired and replaced in time. This solves the problem that after a period of use, existing pneumatic rods will have varying degrees of insufficient air source power due to gas leakage, resulting in weak opening and closing, and in severe cases, even loss of support function. Existing pneumatic rods do not have a warning function when the air source power is insufficient.

[0019] When the piston rod extends, the rubber strip on the support rod will contact the outer surface of the piston rod, and at the same time, the functional ring will be fitted into the functional ring groove. Through the inclined functional ring groove, the tension generated by the functional ring will play an auxiliary role in fixing the piston rod. At the same time, when the pneumatic rod is damaged during use, the support rod can serve as an emergency protection measure to prevent the object from suddenly losing support and causing a safety accident, thus improving the safety of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the pneumatic rod of this utility model;

[0021] Figure 2 This is an internal view of the pneumatic rod of this utility model;

[0022] Figure 3 This is a schematic diagram of the guide collar of the pneumatic rod of this utility model;

[0023] Figure 4 This is a front view of the pneumatic rod of this utility model;

[0024] Figure 5 This is a schematic diagram of the support rod of the pneumatic rod of this utility model;

[0025] In the diagram: 1. Cylinder body; 2. Top cover; 3. Support rod; 4. Piston rod; 5. Fixing component; 6. Functional ring; 7. Upper seal; 8. Guide collar; 9. Piston; 10. Air hole; 11. Sealing ring; 12. First channel; 13. Second channel; 14. Fixing block; 15. Connecting rod; 16. Permanent magnet; 17. Sleeve; 18. Spring; 19. Iron sheet; 20. Fixing hole; 21. Functional ring groove; 22. Rubber strip. Detailed Implementation

[0026] like Figures 1-5As shown, this utility model provides a pneumatic rod, including a cylinder body 1, an upper cover 2 fixedly installed on the upper surface of the cylinder body 1, an upper seal 7 installed at the upper end of the inside of the cylinder body 1, a guide collar 8 installed below the upper seal 7, a piston 9 installed below the guide collar 8, and a piston rod 4 installed on the upper surface of the piston 9.

[0027] A sleeve 17 is installed on the upper surface of the guide collar 8. There are two sleeves 17, which are symmetrically distributed on the guide collar 8. An iron plate 19 is installed at the lower end of the sleeve 17. A spring 18 is installed on the upper surface of the iron plate 19. A permanent magnet 16 is installed on the upper end of the spring 18. A connecting rod 15 is installed on the permanent magnet 16. A fixing block 14 is installed on the upper end of the connecting rod 15. The fixing block 14 is fixedly connected to the lower surface of the upper seal 7.

[0028] Furthermore, the guide ring 8 has a convex design and a second channel 13 is provided on the guide ring 8. The vertical height of the guide ring 8 is lower than that of the sleeve 17. When the air source power is insufficient, the sleeve 17 will abut against the upper seal 7. At the same time, the connecting rod 15 presses the spring 18, causing the permanent magnet 16 and the iron plate 19 to attract each other, thereby generating a certain resistance when the piston rod 4 contracts.

[0029] Furthermore, the upper seal 7 has a first channel 12, through which the piston rod 4 passes. The second channel 13 serves as a guide, which facilitates the movement of the piston rod 4 in the vertical direction and extends the service life of the device.

[0030] The fixing block 14 is made of hard rubber and serves as a cushioning element. There are two air holes 10 on the piston 9, which are symmetrically distributed on the piston 9 and penetrate through the piston 9.

[0031] A sealing ring 11 is installed on the outer surface of the piston 9. There are two sealing rings 11, which are evenly distributed on the piston 9 from top to bottom. Through double sealing, the sealing performance of the device is increased.

[0032] Four fasteners 5 are installed on the upper surface of the cover 2, arranged symmetrically in a circle. A support rod 3 is installed inside each fastener 5. A fixing hole 20 is provided at the lower end of the support rod 3. Multiple rubber strips 22 are installed at the upper end of the support rod 3, evenly distributed on it. A functional groove 21 is provided on the support rod 3. The functional groove 21 is designed at an angle, which generates a diagonal pulling force, making the connection between the support rod 3 and the piston rod 4 tighter.

[0033] Furthermore, a functional ring 6 is installed at the center of the upper cover 2. The functional ring 6 is annular and fits onto the outer surface of the piston rod 4. The functional ring 6 is made of elastic rubber. The size of the functional ring 6 corresponds to the functional ring groove 21, and the functional ring 6 can be engaged in the functional ring groove 21.

[0034] When the air supply power is insufficient during use, the sleeve 17 will abut against the upper seal 7. Simultaneously, the connecting rod 15 will press the spring 18, causing the permanent magnet 16 and the iron plate 19 to attract each other. This creates resistance when the piston rod 4 retracts. If the user feels resistance when retracting the piston rod 4, it indicates that the air supply power inside the cylinder 1 is insufficient, requiring timely inspection and replacement. This solves the problem that existing pneumatic rods, after a period of use, often experience varying degrees of insufficient air supply power due to gas leakage, resulting in weak opening and closing, and in severe cases, even loss of support function. The existing pneumatic rods lack a warning function when the air source power is insufficient. During use, when the piston rod 4 extends, the rubber strip 22 on the support rod 3 will contact the outer surface of the piston rod 4, and at the same time, the functional ring 6 will be fitted into the functional ring groove 21. Through the inclined functional ring groove 21, the diagonal pulling force generated by the functional ring 6 will play an auxiliary role in fixing the piston rod 4. At the same time, when the pneumatic rod is damaged during use, the support rod 3 can serve as an emergency protection measure to prevent the object from suddenly losing support and causing a safety accident, thus improving the safety of the device.

Claims

1. A pneumatic rod, comprising a cylinder (1), characterized in that: A top cover (2) is fixedly installed on the upper surface of the cylinder (1). An upper sealing element (7) is installed at the upper end of the cylinder (1). A guide ring (8) is installed below the upper sealing element (7). A piston (9) is installed below the guide ring (8). A piston rod (4) is installed on the upper surface of the piston (9). A sleeve (17) is installed on the upper surface of the guide collar (8). There are two sleeves (17) which are symmetrically distributed on the guide collar (8). An iron plate (19) is installed at the lower end of the sleeve (17). A spring (18) is installed on the upper surface of the iron plate (19). A permanent magnet (16) is installed on the upper end of the spring (18). A connecting rod (15) is installed on the permanent magnet (16). A fixing block (14) is installed on the upper end of the connecting rod (15). The fixing block (14) is fixedly connected to the lower surface of the upper seal (7).

2. The pneumatic rod according to claim 1, characterized in that: The guide collar (8) has a convex design and a second channel (13) is provided on the guide collar (8). The vertical height of the guide collar (8) is lower than that of the sleeve (17).

3. The pneumatic rod according to claim 2, characterized in that: The upper seal (7) has a first channel (12) and the piston rod (4) passes through the first channel (12) and the second channel (13).

4. The pneumatic rod according to claim 3, characterized in that: The fixing block (14) is made of hard rubber.

5. The pneumatic rod according to claim 3, characterized in that: The piston (9) has two air holes (10) which are symmetrically distributed on the piston (9) and penetrate the piston (9).

6. The pneumatic rod according to claim 5, characterized in that: The piston (9) has two sealing rings (11) installed on its outer surface. The sealing rings (11) are evenly distributed on the piston (9) from top to bottom.

7. The pneumatic rod according to claim 6, characterized in that: The upper surface of the cover (2) is equipped with four fasteners (5), which are symmetrically distributed in a circle on the upper surface of the cover (2).

8. The pneumatic rod according to claim 7, characterized in that: The fixing member (5) has a support rod (3) installed inside. The support rod (3) has a fixing hole (20) at its lower end. The support rod (3) has a rubber strip (22) installed at its upper end. There are multiple rubber strips (22) evenly distributed on the support rod (3). The support rod (3) has a functional groove (21) with an inclined design.

9. The pneumatic rod according to claim 8, characterized in that: A functional ring (6) is installed at the center of the upper cover (2). The functional ring (6) is annular and is fitted on the outer surface of the piston rod (4). The functional ring (6) is made of elastic rubber.

10. The pneumatic rod according to claim 9, characterized in that: The size of the functional ring (6) corresponds to that of the functional ring groove (21), and the functional ring (6) can be fitted into the functional ring groove (21).

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