Bolt sealing structure

Abstract

The utility model provides a bolt sealing structure, which relates to the technical field of bolt sealing and comprises a bolt, a bolt head is arranged at the top of the bolt, a first pressing disc is arranged at the bottom of the bolt head, a first rubber pad is arranged at the bottom of the first pressing disc, a first outer pressing ring is arranged at the bottom of the first rubber pad, and a second outer pressing ring is arranged at the bottom of the first outer pressing ring. A plurality of first separation strips are evenly distributed on the inner side of the first outer pressing ring, and one end of each first separation strip is connected with a first inner pressing ring. The bolt head is arranged on the bolt and matched with the first pressing disc to provide rotary pressing, the first rubber pad is arranged at the bottom of the first pressing disc and can provide the pressing and sealing effect after installation, and the first outer pressing ring and the first inner pressing ring provide the further pressing and sealing effect on the outer ring and the inner ring respectively. And meanwhile, the first separation strips are distributed between the first outer pressing ring and the first inner pressing ring, so that the sealing separation effect is achieved, the multiple sealing effect is achieved, and water vapor is prevented from directly entering.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt sealing, in particular to a bolt sealing structure. Background Art

[0002] Mechanical seal refers to a device that prevents fluid leakage by at least one pair of end faces perpendicular to the axis of rotation, which are kept in close contact and slide relative to each other under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal. The mechanical seal of the elastic loading mechanism and the auxiliary seal is a metal bellows, which we call a metal bellows seal. In light seals, rubber bellows are also used as auxiliary seals. The elastic force of rubber bellows is limited, and generally a spring is needed to meet the loading elastic force. Mechanical seals are usually referred to as machine seals.

[0003] However, the existing bolts are basically made of metal materials, and the outer wall of the connection is relatively smooth, and there is a lack of sealing treatment on the bolt connection, so that dust or water vapor enters the inside of the bolt, which in turn causes the bolt to be affected by water vapor and then damaged. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the bolts are basically made of metal materials, the outer wall of the connection is relatively smooth, and there is a lack of sealing treatment on the bolt connection, so that dust or water vapor enters the inside of the bolt, which in turn causes the bolt to be affected by water vapor and damaged, and a bolt sealing structure is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bolt sealing structure, including a bolt, a bolt head is arranged on the top of the bolt, a first clamping plate is arranged on the bottom of the bolt head, a first rubber pad is arranged on the bottom of the first clamping plate, a first outer pressure ring is arranged on the bottom of the first rubber pad, a plurality of first dividing strips are evenly distributed on the inner side of the first outer pressure ring, one end of the first dividing strip is connected to the first inner pressure ring, a sealing capsule is arranged between two adjacent first dividing strips, a glue spray hose is fixedly connected to the side of the sealing capsule, and one end of the glue spray hose passes through the inner side of the first inner pressure ring.

[0006] Preferably, the outer wall of the bolt is threadedly connected to a nut, a second clamping plate is arranged on the top of the nut, a plurality of second dividing strips are distributed clockwise along the circumferential direction on the top of the second clamping plate, a plurality of layers of sealing rings are arranged on the surface of the bolt head, and the second dividing strips are crimped onto the surface of the plurality of layers of sealing rings.

[0007] Preferably, a double-layer sealing ring is provided at the bottom of the first compression plate, and a first sealing cover is connected to the bottom of the double-layer sealing ring.

[0008] Preferably, a plurality of through holes are evenly distributed through the side surface of the first inner pressure ring, and one end of the glue spraying tube passes through the inner side of the through hole.

[0009] Preferably, a first sealing ring is disposed on the outer side of the first pressing plate, and a second sealing ring is disposed on the outer side of the second pressing plate.

[0010] Preferably, a second inner pressure ring and a second outer pressure ring are provided on the top of the second sealing ring, and the second dividing strips are evenly distributed between the second inner pressure ring and the second outer pressure ring.

[0011] Preferably, the outer side of the second sealing ring is connected to a second sealing cover.

[0012] Preferably, an outer sealing ring is provided at the bottom of the nut, and the inner wall of the outer sealing ring is connected to the outer wall of the bolt.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, a bolt head is arranged on the bolt, and cooperates with the first clamping plate to provide rotational clamping. A first rubber pad is arranged at the bottom of the first clamping plate to provide a clamping and sealing effect after installation. The first outer pressure ring and the first inner pressure ring provide further clamping and sealing effects on the outer ring and the inner ring respectively. At the same time, the first dividing strip is distributed between the first outer pressure ring and the first inner pressure ring, which is beneficial to provide a sealing and separation effect, and is beneficial to provide a multiple sealing effect, avoiding the direct entry of water vapor, and providing a double sealing effect on the outside through a double-layer sealing ring. The sealing capsule is distributed at the bottom of the first clamping plate. During the installation and clamping process, the sealing capsule can be squeezed, and then the internal sealant is squeezed out from the position of the spray hose. The sealing capsule can squeeze the colloid through the through hole, which is beneficial to squeeze the sealant into the outer wall of the bolt, thereby providing a filling and sealing effect at the joint, further ensuring the sealing performance.

[0015] 2. In the utility model, the second inner pressure ring, the second dividing strip and the second outer pressure ring are squeezed by the second pressure plate when tightening, and the second dividing strip further provides a pressing effect on the multi-layer sealing ring, which is beneficial to improve the sealing of the nut connection after connection. The first sealing ring improves the sealing of the connection with the first pressure plate. The second sealing ring cooperates with the second sealing cover to be sleeved on the outside of the nut, which is beneficial to improve the external sealing effect. The outer sealing ring is arranged at the bottom of the nut and is tightly connected with the outer wall of the bolt, thereby forming a bottom sealing effect. The sealing structural components provided with seals in multiple places are beneficial to comprehensively improve the sealing performance of the bolt, avoid the entry of water vapor or dust, and extend the service life of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A three-dimensional structural schematic diagram of a bolt sealing structure is proposed for the utility model;

[0017] Figure 2 Another structural schematic diagram of a bolt sealing structure proposed by the utility model;

[0018] Figure 3 A schematic diagram of the structure of a bolt seal assembly of a bolt seal structure is provided for the utility model;

[0019] Figure 4 The utility model provides a structural schematic diagram of a nut sealing component of a bolt sealing structure.

[0020] Legend: 1. Bolt; 2. Bolt head; 3. First clamping plate; 4. First rubber pad; 5. First outer pressure ring; 6. First dividing strip; 7. First inner pressure ring; 8. Double-layer sealing ring; 9. First sealing cover; 10. Through hole; 11. Sealing capsule; 12. Glue spray hose; 13. First sealing ring; 14. Nut; 15. Second sealing ring; 16. Second sealing cover; 17. Second inner pressure ring; 18. Second dividing strip; 19. Second outer pressure ring; 20. Multi-layer sealing ring; 21. Second clamping plate; 22. Outer sealing ring. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Example 1

[0024] like Figure 1-Figure 4As shown, the utility model provides a technical solution: a bolt sealing structure, including a bolt 1, a bolt head 2 is arranged on the top of the bolt 1, a first clamping plate 3 is arranged on the bottom of the bolt head 2, a first rubber pad 4 is arranged on the bottom of the first clamping plate 3, a first outer pressure ring 5 is arranged on the bottom of the first rubber pad 4, a plurality of first dividing strips 6 are evenly distributed on the inner side of the first outer pressure ring 5, one end of the first dividing strip 6 is connected to the first inner pressure ring 7, a sealing capsule 11 is arranged between two adjacent first dividing strips 6, a glue spraying tube 12 is fixedly connected to the side of the sealing capsule 11, one end of the glue spraying tube 12 passes through the inner side of the first inner pressure ring 7, a double-layer sealing ring 8 is arranged on the bottom of the first clamping plate 3, a first sealing cover 9 is connected to the bottom of the double-layer sealing ring 8, a plurality of through holes 10 are evenly distributed on the side of the first inner pressure ring 7, and one end of the glue spraying tube 12 passes through the inner side of the through hole 10.

[0025] In this embodiment, the bolt head 2 is arranged on the bolt 1, and cooperates with the first clamping plate 3 to provide rotational clamping. A first rubber pad 4 is arranged at the bottom of the first clamping plate 3 to provide a clamping and sealing effect after installation. The first outer pressure ring 5 and the first inner pressure ring 7 provide further clamping and sealing effects on the outer ring and the inner ring respectively. At the same time, the first dividing strip 6 is distributed between the first outer pressure ring 5 and the first inner pressure ring 7, which is beneficial to provide a sealing separation effect, and is beneficial to provide a multiple sealing effect, avoiding the direct entry of water vapor. A double sealing effect is provided on the outside through a double-layer sealing ring 8. The sealing capsule 11 is distributed at the bottom of the first clamping plate 3. During the installation and clamping process, the sealing capsule 11 can be squeezed, and then the internal sealant is squeezed out from the position of the glue spraying tube 12. The sealing capsule 11 passes through the through hole 10 to squeeze the colloid out, which is beneficial to squeeze the sealant into the outer wall of the bolt 1, thereby providing a filling and sealing effect at the joint, further ensuring the sealing performance.

[0026] Example 2

[0027] like Figure 1-Figure 4 As shown, the outer wall of the bolt 1 is threadedly connected with a nut 14, the top of the nut 14 is provided with a second clamping plate 21, the top of the second clamping plate 21 is provided with a plurality of second dividing strips 18 distributed clockwise along the circumferential direction, the surface of the bolt head 2 is provided with a multi-layer sealing ring 20, the second dividing strips 18 are crimped on the surface of the multi-layer sealing ring 20, the outer side of the first clamping plate 3 is provided with a first sealing ring 13, the outer side of the second clamping plate 21 is provided with a second sealing ring 15, the top of the second sealing ring 15 is provided with a second inner pressure ring 17 and a second outer pressure ring 19, the second dividing strips 18 are evenly distributed between the second inner pressure ring 17 and the second outer pressure ring 19, the outer side of the second sealing ring 15 is connected with a second sealing cover 16, the bottom of the nut 14 is provided with an outer sealing ring 22, and the inner wall of the outer sealing ring 22 is connected to the outer wall of the bolt 1.

[0028] In this embodiment, the nut 14 is threadedly connected to the outer wall of the bolt 1 to form a tightening effect. The second pressure plate 21 squeezes the second inner pressure ring 17, the second dividing strip 18 and the second outer pressure ring 19 when tightening. At the same time, the second dividing strip 18 further provides a tightening effect on the multi-layer sealing ring 20, which is beneficial to improve the sealing of the nut connection after connection. The first sealing ring 13 improves the sealing of the connection with the first pressure plate 3. The second sealing ring 15 cooperates with the second sealing cover 16 to be sleeved on the outside of the nut 14, which is beneficial to improve the external sealing effect. The outer sealing ring 22 is arranged at the bottom of the nut 14 and is tightly connected to the outer wall of the bolt 1, thereby forming a bottom sealing effect. By providing sealing structural components in multiple places, it is beneficial to comprehensively improve the sealing performance of the bolt, avoid the entry of water vapor or dust, extend the service life of the bolt, and ensure the long-term and stable use of the bolt.

[0029] The working principle of this embodiment: when in use, first, the first clamping plate 3 provides rotational clamping, and a first rubber pad 4 is arranged at the bottom of the first clamping plate 3 to provide a clamping and sealing effect after installation. The first outer pressure ring 5 and the first inner pressure ring 7 provide further clamping and sealing effects on the outer ring and the inner ring respectively. At the same time, the first dividing strip 6 is distributed between the first outer pressure ring 5 and the first inner pressure ring 7, which is beneficial to provide a sealing separation effect, and is beneficial to provide a multiple sealing effect. The double-layer sealing ring 8 provides a double sealing effect on the outside. The sealing capsule 11 is distributed at the bottom of the first clamping plate 3. During the installation and clamping process, the sealing capsule 11 can be squeezed, and then the internal sealant is squeezed out from the position of the spray tube 12. The sealing capsule 11 passes through the through hole 10 to squeeze the colloid The outer sealing ring 22 is arranged at the bottom of the nut 14 and is tightly connected to the outer wall of the bolt 1, thereby forming a bottom sealing effect.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A bolt sealing structure, comprising a bolt (1), characterized in that: A bolt head (2) is arranged at the top of the bolt (1), a first clamping plate (3) is arranged at the bottom of the bolt head (2), a first rubber pad (4) is arranged at the bottom of the first clamping plate (3), a first outer pressure ring (5) is arranged at the bottom of the first rubber pad (4), a plurality of first dividing strips (6) are evenly distributed on the inner side of the first outer pressure ring (5), one end of the first dividing strip (6) is connected to the first inner pressure ring (7), a sealing capsule (11) is arranged between two adjacent first dividing strips (6), a glue spraying hose (12) is fixedly connected to the side of the sealing capsule (11), and one end of the glue spraying hose (12) passes through the inner side of the first inner pressure ring (7).

2. The bolt sealing structure according to claim 1, characterized in that: The outer wall of the bolt (1) is threadedly connected to a nut (14), a second clamping plate (21) is arranged on the top of the nut (14), a plurality of second dividing strips (18) are distributed clockwise along the circumferential direction on the top of the second clamping plate (21), a multi-layer sealing ring (20) is arranged on the surface of the bolt head (2), and the second dividing strips (18) are crimped onto the surface of the multi-layer sealing ring (20).

3. The bolt sealing structure according to claim 1, characterized in that: A double-layer sealing ring (8) is provided at the bottom of the first compression plate (3), and a first sealing cover (9) is connected to the bottom of the double-layer sealing ring (8).

4. The bolt sealing structure according to claim 1, characterized in that: A plurality of through holes (10) are evenly distributed through the side surface of the first inner pressure ring (7), and one end of the glue spraying tube (12) passes through the inner side of the through hole (10).

5. The bolt sealing structure according to claim 2, characterized in that: A first sealing ring (13) is arranged on the outer side of the first pressure plate (3), and a second sealing ring (15) is arranged on the outer side of the second pressure plate (21).

6. The bolt sealing structure according to claim 5, characterized in that: A second inner pressure ring (17) and a second outer pressure ring (19) are arranged on the top of the second sealing ring (15), and the second dividing strips (18) are evenly distributed between the second inner pressure ring (17) and the second outer pressure ring (19).

7. The bolt sealing structure according to claim 5, characterized in that: The outer side of the second sealing sleeve ring (15) is connected to a second sealing cover (16).

8. The bolt sealing structure according to claim 2, characterized in that: An outer sealing ring (22) is provided at the bottom of the nut (14), and the inner wall of the outer sealing ring (22) is connected to the outer wall of the bolt (1).

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