Guide column sealing structure

Abstract

The utility model discloses a guide column sealing structure which comprises a guide column body, the outer surface of the guide column body is fixedly connected with a lower installation plate, the upper surface of the lower installation plate is fixedly connected with a lower supporting block, a third pressing piece is installed on the lower supporting block, a second sealing ring is installed on the third pressing piece, and a second pressing piece is installed on the second sealing ring. A first sealing ring is mounted on the second pressing piece, a first pressing piece is mounted on the first sealing ring, an upper supporting block is mounted on the first pressing piece, an upper mounting plate and an upper supporting block are fixedly connected to the upper surface of the upper supporting block, and a positioning column is fixedly connected to the upper mounting plate. According to the double-layer sealing ring, leakage of liquid or gas can be effectively prevented by extruding the structure of the double-layer sealing ring, the multi-layer structure can better adapt to temperature and pressure changes, and the stability of the sealing performance is kept.

Description

Technical Field

[0001] This utility model relates to the field of guide post sealing technology, and in particular to a guide post sealing structure. Background Technology

[0002] Guide column structures are widely used in hydraulic systems, pneumatic systems, mechanical equipment, automotive industry and other fields. They are mainly used to prevent leakage of liquids, gases or solid particles, ensure the normal operation of equipment and extend its service life. However, existing devices have poor sealing effect after long-term use and are inconvenient to replace after wear. For example, China has disclosed "a double guide plunger sealing structure" with the application number "CN201020647354.2". It ensures the coaxiality of the plunger rod by setting guide copper sleeve structures at both ends of the sealing mechanism, which greatly improves the running accuracy of the plunger rod and solves the problem that the coaxiality of the existing plunger rod cannot be guaranteed. However, it cannot better adapt to temperature and pressure changes and maintain the stability of sealing performance through multi-layer structure. It cannot ensure that the sealing structure is perfectly aligned during installation to avoid poor sealing or wear caused by misalignment. It also cannot make it more convenient to inspect or replace internal parts during structural maintenance. Utility Model Content

[0003] The purpose of this invention is to solve at least one of the technical problems existing in the prior art, and to provide a guide column sealing structure. Through the cooperation of multiple pressure plates and sealing rings, the structure of double-layer sealing rings can more effectively prevent the leakage of liquids or gases. The multi-layer structure can better adapt to temperature and pressure changes and maintain the stability of sealing performance. Through the cooperation of positioning columns, positioning holes and fixing bolts, the sealing structure can be perfectly aligned during installation, thereby avoiding poor sealing or wear caused by misalignment. It is also more convenient when maintenance or replacement is required, thereby reducing downtime and labor costs.

[0004] This utility model also provides a guide post sealing structure as described above, comprising: a guide post body, a lower mounting plate fixedly connected to the outer surface of the guide post body, a lower support block fixedly connected to the upper surface of the lower mounting plate, a third pressure plate mounted on the lower support block, a second sealing ring mounted on the third pressure plate, a second pressure plate mounted on the second sealing ring, a first sealing ring mounted on the second pressure plate, a first pressure plate mounted on the first sealing ring, an upper support block mounted on the first pressure plate, an upper mounting plate fixedly connected to the upper surface of the upper support block, and a positioning post fixedly connected to the upper support block and the upper mounting plate. The support block, the third pressure plate, the second sealing ring, the second pressure plate, the first sealing ring, and the first pressure plate are all provided with positioning holes. The upper mounting plate is provided with fixing bolts. Through the cooperation of multiple pressure plates and sealing rings, the structure of the double-layer sealing ring can more effectively prevent the leakage of liquid or gas. The multi-layer structure can better adapt to temperature and pressure changes and maintain the stability of sealing performance. Through the cooperation of positioning pins, positioning holes, and fixing bolts, the sealing structure can be perfectly aligned during installation, thereby avoiding poor sealing or wear caused by misalignment. It is also more convenient when maintenance or replacement is required, thereby reducing downtime and labor costs.

[0005] According to the guide column sealing structure provided by this utility model, the lower support block is fixedly connected to the guide column body, and a threaded hole is provided below the positioning hole on the lower support block, which can effectively lock the fixing bolt.

[0006] According to the guide column sealing structure provided by this utility model, the upper mounting plate is fixed to the lower mounting plate by fixing bolts, and the first sealing ring and the second sealing ring are made of silicone, which has a high sealing effect and wear resistance.

[0007] According to the present invention, a guide column sealing structure is provided, wherein the positioning column is a hollow column and the fixing bolt passes through the positioning column and is movably connected to the threaded hole, which can improve the convenience of installation and disassembly.

[0008] According to the guide post sealing structure provided by this utility model, a groove is provided on the lower mounting plate, and a shell is installed in the groove, which can effectively lock the shell.

[0009] According to the present invention, a guide column sealing structure is provided, wherein the outer shell is engaged with the upper mounting plate, and the outer shell is made of aluminum alloy, which can effectively protect the internal structure.

[0010] According to the guide column sealing structure provided by this utility model, the lower support block and the lower mounting plate are fixedly connected to the guide column body by welding. The lower support block and the lower mounting plate are integrally formed, which can improve the structural stability.

[0011] Beneficial effects

[0012] Compared with existing technologies, this guide post sealing structure, through the cooperation of multiple pressure plates and sealing rings, can more effectively prevent the leakage of liquids or gases by compressing the double-layer sealing ring structure. The multi-layer structure can better adapt to temperature and pressure changes and maintain the stability of sealing performance.

[0013] Compared with existing technologies, this guide post sealing structure, through the cooperation of positioning posts, positioning holes and fixing bolts, can ensure that the sealing structure is perfectly aligned during installation, thereby avoiding poor sealing or wear caused by misalignment, and is more convenient when maintenance or replacement is required, thus reducing downtime and labor costs. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a three-dimensional structural diagram of the guide column sealing structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the first sealing ring connection structure of the guide column sealing structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the upper mounting plate connection structure of the guide column sealing structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the lower mounting plate connection structure of the guide column sealing structure of this utility model.

[0019] Legend:

[0020] 1. Guide post body; 2. Upper mounting plate; 3. Upper support block; 4. First pressure plate; 5. First sealing ring; 6. Second pressure plate; 7. Second sealing ring; 8. Third pressure plate; 9. Lower support block; 10. Lower mounting plate; 11. Positioning post; 12. Positioning hole; 13. Fixing bolt; 14. Groove; 15. Outer shell. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1 , Figure 2 and Figure 4This utility model discloses a guide post sealing structure, comprising: a guide post body 1, a lower mounting plate 10 fixedly connected to the outer surface of the guide post body 1 for mounting the entire device and connecting it to external equipment, a lower support block 9 fixedly connected to the upper surface of the lower mounting plate 10, the lower support block 9 being fixedly connected to the guide post body 1, the lower support block 9 and the lower mounting plate 10 being fixedly connected to the guide post body 1 by welding, the lower support block 9 and the lower mounting plate 10 being integrally formed, a third pressure plate 8 being mounted on the lower support block 9, a second sealing ring 7 being mounted on the third pressure plate 8, a second pressure plate 6 being mounted on the second sealing ring 7, and a third pressure plate 8 being mounted on the second pressure plate 6. A sealing ring 5, the first sealing ring 5 and the second sealing ring 7 are made of silicone. A first pressure plate 4 is installed on the first sealing ring 5. An upper support block 3 is installed on the first pressure plate 4. An upper mounting plate 2 is fixedly connected to the upper surface of the upper support block 3 for installing the external structure. A groove 14 is provided on the lower mounting plate 10. A shell 15 is installed in the groove 14. The shell 15 is engaged with the upper mounting plate 2. The shell 15 is made of aluminum alloy and is used to protect the entire device. The shell 15 is fixed by the friction coefficient between it and the two mounting plates. The shell 15 is rotated by a large external force. Since it is not connected to external equipment, it will not affect the use of the entire structure and the guide column.

[0023] Specifically, firstly, a lower support block 9 is installed on the lower mounting plate 10, and the outer shell 15 is placed in the groove 14. The lower support block 9 has a third pressure plate 8, the third pressure plate 8 has a second sealing ring 7, the second sealing ring 7 has a second pressure plate 6, the second pressure plate 6 has a first sealing ring 5, and the first sealing ring 5 has a first pressure plate 4, thus forming a double-layer sealing structure. Then, the upper mounting plate 2 and the upper support block 3 are installed on the first pressure plate 4, and the upper mounting plate 2 and the upper support block 3 are installed on the lower support block 9 and the lower mounting plate 10. Thus, through clamping force, the first pressure plate 4, the second pressure plate 6, and the third pressure plate 8 squeeze the first sealing ring 5 and the second sealing ring 7, thereby ensuring the sealing effect.

[0024] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The upper support block 3 is fixedly connected to the upper mounting plate 2 with a positioning post 11. The lower support block 9, the third pressure plate 8, the second sealing ring 7, the second pressure plate 6, the first sealing ring 5, and the first pressure plate 4 are all provided with positioning holes 12. The upper mounting plate 2 is provided with fixing bolts 13. The positioning hole 12 on the lower support block 9 is provided with a threaded hole below it. The positioning post 11 is a hollow column. The fixing bolt 13 passes through the positioning post 11 and is movably connected to the threaded hole for locking the fixing bolt 13.

[0025] Specifically, the upper mounting plate 2 and the upper support block 3 are installed on the lower support block 9 and the lower mounting plate 10, and the positioning pin 11 passes through multiple pressure plates and sealing rings. The other end of the positioning pin 11 is installed inside the lower support block 9. Then, the fixing bolt 13 is threaded through the positioning pin 11 and connected to the lower support block 9, thereby completing the installation and fixing and facilitating disassembly.

[0026] Working principle: During installation, first install the lower mounting plate 10 and the lower support block 9, then snap the outer shell 15 into the groove 14, then stack the third pressure plate 8, the second sealing ring 7, the second pressure plate 6, the first sealing ring 5, and the first pressure plate 4 on top in sequence, then install the upper mounting plate 2 and the upper support block 3. The pressure plates squeeze the first sealing ring 5 and the second sealing ring 7, thereby sealing them. The positioning pin 11 on the upper support block 3 passes through the positioning holes 12 on the multiple pressure plates and sealing rings, and then the fixing bolt 13 passes through the positioning pin 11 and locks it into the threaded hole on the lower support block 9 to complete the installation.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A guide post seal structure characterized by, Include: The outer surface of the guide column body (1) is fixedly connected with the lower mounting plate (10), the upper surface of the lower mounting plate (10) is fixedly connected with the lower support block (9), the third pressing piece (8) is installed on the lower support block (9), the second sealing ring (7) is installed on the third pressing piece (8), the second pressing piece (6) is installed on the second sealing ring (7), the first sealing ring (5) is installed on the second pressing piece (6), the first pressing piece (4) is installed on the first sealing ring (5), the upper support block (3) is installed on the first pressing piece (4), the upper surface of the upper support block (3) is fixedly connected with the upper mounting plate (2), the upper support block (3) and the upper mounting plate (2) are fixedly connected with the positioning column (11), the positioning hole (12) is arranged on the upper support block (3), the first pressing piece (4), the second pressing piece (6), the second sealing ring (7), the third pressing piece (8) and the lower support block (9), and the fixing bolt (13) is arranged on the upper mounting plate (2).

2. A guide post seal structure according to claim 1, wherein The lower support block (9) is fixedly connected with the guide column body (1), and the positioning hole (12) on the lower support block (9) is provided with a threaded hole below.

3. A guide post seal structure according to claim 1, wherein The upper mounting plate (2) is fixed with the lower mounting plate (10) through the fixing bolt (13), and the materials of the first sealing ring (5) and the second sealing ring (7) are silica gel.

4. A guide post seal structure according to claim 1, wherein The positioning column (11) is a hollow column, and the fixing bolt (13) is movably connected with the threaded hole through the positioning column (11).

5. A guide post seal structure according to claim 1, wherein The lower mounting plate (10) is provided with a groove (14), and the outer shell (15) is installed in the groove (14).

6. A guide post seal structure according to claim 5, wherein The outer shell (15) is clamped with the mounting plate (2), and the material of the outer shell (15) is aluminum alloy.

7. A guide post seal structure according to claim 1 wherein, The lower support block (9) and the lower mounting plate (10) are fixedly connected with the guide column body (1) by welding, and the lower support block (9) and the lower mounting plate (10) are integrally formed.

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