Sealing device at guide rod of air cylinder

Abstract

The utility model discloses an air cylinder guide rod position sealing device which comprises a base, an air cylinder body, a top seat, a guide rod, a sealing cover and an installation assembly, an independent area is preset between the base and the top seat, the air cylinder body is installed in the independent area, and the air cylinder body is respectively connected with the base and the top seat. The guide rod is installed in the air cylinder body and extends out of the top base, and the sealing cover is arranged at a connector when the guide rod is closed on the air cylinder body through an installation assembly. When the sealing cover is fixed, the two movable plates are driven to move along with the sealing cover, the two movable plates get close to each other, the spring is stretched, the protruding blocks are inserted into the inserting grooves, the limiting plates lose extrusion force, the spring deforms, the elastic force reacts to the movable plates, the two movable plates move in the opposite directions, the two limiting plates are driven to be inserted into the limiting grooves, and fixing of the sealing cover is completed. And the connecting position of the guide rod and the air cylinder is sealed through the sealing cover, gas exposure is avoided, and energy is saved.

Description

Technical Field

[0001] This utility model specifically relates to a sealing device at the cylinder guide rod. Background Technology

[0002] A cylinder is a cylindrical metal component that guides a piston in linear reciprocating motion within the cylinder. In an engine cylinder, air expands, converting thermal energy into mechanical energy; in a compressor cylinder, gas is compressed by the piston, increasing its pressure.

[0003] Currently, during the use of cylinders, there is a certain gap between the guide rod and the cylinder after the piston moves. A single sealing ring cannot achieve a seal, resulting in gas leakage and wasting energy. Utility Model Content

[0004] The purpose of this invention is to provide a sealing device for the cylinder guide rod to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing device for a cylinder guide rod, comprising a base, a cylinder body, a top seat, a guide rod, a sealing cover, and an installation assembly. An independent area is pre-set between the base and the top seat. The cylinder body is installed within this independent area and is connected to both the base and the top seat. The guide rod is installed inside the cylinder body and extends to the outside of the top seat. The sealing cover is disposed at the interface when the guide rod is closed to the cylinder body via the installation assembly.

[0006] Preferably, the mounting assembly includes a protrusion disposed on the sealing cover and extending outward, wherein the protrusion has an inwardly formed groove on the side facing the cylinder body.

[0007] Preferably, springs are provided on both the left and right sides of the groove, and a movable plate is provided at one end of the two springs that are close to each other. The movable plate extends out of the protrusion through the groove opening.

[0008] Preferably, the movable block is connected to a limiting plate at one end outside the groove.

[0009] Preferably, slide rails are provided on both the upper and lower sides of the groove, and a moving rod is provided in the slide rail, which is connected to the moving plate.

[0010] Preferably, the protrusion has a groove on the side away from the cylinder body, and a lever is inserted into the groove, the lever extending into the groove and connecting to the moving plate.

[0011] Preferably, the top seat surface has a slot.

[0012] The technical effects and advantages of this utility model are as follows: When the cylinder guide rod returns to its initial position after operation, the sealing device presses down on the two limiting plates, bringing them closer together. As the moving rod slides within the slide rail, it moves the two moving plates closer together, stretching the spring. As the protrusion inserts into the slot, the limiting plates lose their compressive force, the spring deforms, and the elastic force reacts on the moving plates, causing them to move in opposite directions. This pulls the two limiting plates into the limiting groove, securing the sealing cover. The sealing cover seals the connection between the guide rod and the cylinder, preventing gas leakage and saving energy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the protrusion structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the sealing cap of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0017] Figure 5 This is a schematic diagram of the slot structure of this utility model.

[0018] In the diagram: 1. Base; 2. Cylinder body; 3. Top seat; 4. Guide rod; 5. Sealing cover; 6. Protrusion; 7. Groove; 8. Spring; 9. Moving plate; 10. Limiting plate; 11. Slide rail; 12. Moving rod; 13. Slide groove; 14. Toggle lever; 15. Slot. Detailed Implementation

[0019] 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.

[0020] To facilitate bending of the heat dissipation aluminum pipe, refer to... Figure 1 , Figure 2 and Figure 3As shown, the device includes a base 1, a cylinder body 2, a top seat 3, a guide rod 4, a sealing cover 5, and an installation assembly. An independent area is pre-defined between the base 1 and the top seat 3. The cylinder body 2 is installed within this independent area and is connected to both the base 1 and the top seat 3. The guide rod 4 is installed inside the cylinder body 2 and extends to the outside of the top seat 3. The sealing cover 5 is positioned at the interface where the guide rod 4 is closed to the cylinder body 2 via the installation assembly. After the cylinder operation ends, when the guide rod 4 returns to its initial position, it presses down on two limit plates 10, causing the two... The limiting plates 10 move closer to each other. As the moving rod 12 slides within the slide rail 11, it drives the two moving plates 9 to move together and move closer to each other, stretching the spring 8. As the protrusion 6 is inserted into the slot 15, the limiting plates 10 lose their compressive force, the spring 8 deforms, and the elastic force reacts on the moving plates 9, causing the two moving plates 9 to move in opposite directions, driving the two limiting plates 10 to be inserted into the limiting groove, thus completing the fixation of the sealing cover 5. The sealing cover 5 seals the connection between the guide rod 4 and the cylinder, preventing gas leakage.

[0021] To install the sealing cap 5, refer to... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the mounting assembly includes a protrusion 6 disposed on the sealing cover 5 and extending outward. The protrusion 6 has an inwardly formed groove 7 facing the cylinder body 2. Springs 8 are disposed on both sides of the groove 7. A movable plate 9 is disposed at one end of the two springs 8 close to each other. The movable plate 9 extends outward from the protrusion 6 through the opening of the groove 7. When the two movable plates 9 approach each other, they drive the two limiting plates 10 to approach each other, and the springs 8 are stretched. The movable block is connected to the limiting plate 10 at one end outside the groove 7. When the limiting plate 10 is inserted into the slot 15, the limiting plate 10 loses pressure, the spring 8 deforms, and the elastic force reacts on the movable plate 9, driving the two limiting plates 10 to move away from each other, thereby inserting them into the limiting grooves on both sides of the slot 15, completing the installation and fixation of the sealing cover 5. Slide rails 11 are provided on both the upper and lower sides of the groove 7. A moving rod 12 is provided in the slide rail 11 and is connected to the moving plate 9. The moving rod 12 slides along the length of the slide rail 11, thereby driving the moving plate 9 to move. The moving rod 12 supports the moving plate 9, making the movement of the moving plate 9 more stable. A groove 13 is provided on the side of the protrusion 6 away from the cylinder body 2. A lever 14 is inserted into the groove 13. The lever 14 extends into the groove 7 and is connected to the moving plate 9. When it is necessary to disassemble the sealing cover 5, the two levers 14 are moved to move in the groove 13 and move closer to each other, which drives the two moving plates 9 and the limiting plate 10 to move closer to each other, allowing the limiting plate 10 to be pulled out of the limiting groove for disassembly. The top seat 3 has a slot 15 on its surface. The left and right sides of the slot 15 have limiting grooves that are adapted to the limiting plate 10. When the limiting plate 10 is inserted into the limiting groove, the sealing cover 5 is installed.

[0022] In use, after the cylinder finishes operating and the guide rod 4 returns to its initial position, press the two limiting plates 10 to bring them closer together. As the moving rod 12 slides in the slide rail 11, it drives the two moving plates 9 to move together and bring them closer together, stretching the spring 8. As the protrusion 6 is inserted into the slot 15, the limiting plates 10 lose their squeezing force, the spring 8 deforms, and the elastic force reacts to the moving plates 9, causing the two moving plates 9 to move in opposite directions, driving the two limiting plates 10 to insert into the limiting groove, thus fixing the sealing cover 5. The sealing cover 5 seals the connection between the guide rod 4 and the cylinder. Move the two levers 14 to move them in the slide groove 13 and bring them closer together, driving the two moving plates 9 and the limiting plates 10 closer together, allowing the limiting plates 10 to be pulled out of the limiting groove, thus removing the sealing cover 5.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model.

Claims

1. A sealing device for a cylinder guide rod, characterized in that, The device includes a base (1), a cylinder body (2), a top seat (3), a guide rod (4), a sealing cover (5), and an installation assembly. An independent area is pre-set between the base (1) and the top seat (3). The cylinder body (2) is installed in this independent area and is connected to the base (1) and the top seat (3) respectively. The guide rod (4) is installed inside the cylinder body (2) and extends to the outside of the top seat (3). The sealing cover (5) is set at the interface when the guide rod (4) is closed to the cylinder body (2) through the installation assembly.

2. The sealing device at the cylinder guide rod according to claim 1, characterized in that: The mounting assembly includes a protrusion (6) disposed on the sealing cover (5) and extending outward, the protrusion (6) having an inwardly formed groove (7) on the side facing the cylinder body (2).

3. The sealing device at the cylinder guide rod according to claim 2, characterized in that: Springs (8) are provided on both the left and right sides of the groove (7). A movable plate (9) is provided at one end of the two springs (8) that are close to each other. The movable plate (9) extends out of the protrusion (6) through the opening of the groove (7).

4. The sealing device at the cylinder guide rod according to claim 3, characterized in that: The movable plate (9) is located outside the groove (7) and connected to a limiting plate (10).

5. The sealing device at the cylinder guide rod according to claim 4, characterized in that: The groove (7) has slide rails (11) on both the upper and lower sides, and a moving rod (12) is provided in the slide rail (11). The moving rod (12) is connected to the moving plate (9).

6. The sealing device at the cylinder guide rod according to claim 5, characterized in that: The protrusion (6) has a groove (13) on the side away from the cylinder body (2), and a lever (14) is inserted into the groove (13). The lever (14) extends into the groove (7) and connects to the moving plate (9).

7. The sealing device at the cylinder guide rod according to claim 1, characterized in that: The top seat (3) has a slot (15) on its surface.

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