Press-fit sealing component

Abstract

The utility model relates to a press-fit sealing component which comprises a sealing lining seat, a sealing pressing sleeve, a spiral sealing sleeve, a sealing pressing cover and a bolt. The bolt is arranged in the part body in a penetrating mode, and the bolt is sleeved with the sealing lining seat in a sliding mode. The spiral sealing sleeve is connected with the bolt through threads and abuts against the sealing lining base to form first press-fit sealing. The sealing pressing sleeve is coaxially arranged on the sealing lining seat in a sleeving mode and abuts against the sealing lining seat, and an avoiding gap is formed by the sealing pressing sleeve, the spiral sealing sleeve and the sealing lining seat; the sealing gland is arranged in the avoiding gap in a sliding manner; and the locking nut is rotationally arranged on the bolt through threaded connection and is used for locking and pushing the sealing gland and promoting the sealing gland and the sealing lining seat to form second press-fit sealing. After the sealing component is installed, two pressing seals can be effectively formed, the sealing effect is improved, and meanwhile the service life is remarkably prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of sealing, and specifically relates to a pressure sealing component. Background Technology

[0002] Compacted rubber seals utilize the elasticity and plasticity of rubber materials to create a tight seal between the rubber and the mating surfaces, preventing media leakage. They offer advantages such as excellent sealing performance, wide applicability, and ease of installation and maintenance, and are widely used in industries such as manufacturing, automotive, aerospace, and home appliances.

[0003] During use, existing compression rubber sealing technology typically employs only one compression sealing process, which is prone to seal failure and leakage after a very short period of use, leading to frequent replacements and a waste of human and material resources.

[0004] Therefore, it is necessary to provide a pressure-sealing component to solve the problems mentioned in the background art. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a press-fit sealing component, comprising: a sealing liner, a sealing sleeve, a spiral sealing sleeve, a sealing cap, and bolts;

[0006] The bolt is inserted through the body of the part, and the sealing liner is slidably sleeved on the bolt; the spiral sealing sleeve is connected to the bolt by threads and abuts against the sealing liner to form the first pressure seal;

[0007] The sealing sleeve is coaxially sleeved on the sealing liner and abuts against the sealing liner. The sealing sleeve, the spiral sealing sleeve, and the sealing liner form a clearance gap. The sealing cover is slidably disposed within the clearance gap.

[0008] A lock nut, rotatably mounted on the bolt via a threaded connection, is used to lock and push the sealing gland, causing the sealing gland and the sealing liner to form a second pressure seal.

[0009] As a further improvement of this utility model, an anti-loosening nut is also provided on the bolt via a threaded connection. The anti-loosening nut abuts and fits against the locking nut to prevent the locking nut from rotating due to vibration, which would cause the pressure seal to fail.

[0010] As a further improvement of this utility model, the sealing sleeve is enlarged and thickened at the part that abuts against the sealing liner to increase the contact area with the sealing liner.

[0011] As a further improvement of this utility model, the inner ring of the spiral sealing sleeve is provided with threads.

[0012] As a further improvement of this utility model, the sealing liner is made of rubber.

[0013] As a further improvement of this utility model, the spiral sealing sleeve is made of composite material.

[0014] As a further improvement of this utility model, the sealing sleeve and the sealing cover are made of steel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] First, the spiral sealing sleeve and the sealing liner form the first pressure seal (inner seal). After the first pressure seal is completed, the sealing cover is squeezed by the locking nut, which further pushes the sealing sleeve and the sealing liner to form the second pressure seal (outer seal). By forming the first and second pressure seals, the sealing effect is greatly improved and the stability of the sealing effect is ensured. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an overall pressure-sealing component;

[0018] Among them, 1. sealing liner; 2. sealing sleeve; 3. spiral sealing sleeve; 4. sealing gland; 5. locking nut; 6. anti-loosening nut; 7. bolt; 8. part body. Detailed Implementation

[0019] See Figure 1 As shown, a press-fit sealing component is characterized by comprising: a sealing liner 1, a sealing sleeve 2, a spiral sealing sleeve 3, a sealing cap 4, and bolts 7.

[0020] The bolt 7 is inserted through the part body 8, and the sealing liner 1 is slidably sleeved on the bolt 7; the spiral sealing sleeve 3 is connected to the bolt 7 by threads and abuts against the sealing liner 1 to form the first pressure seal (inner seal).

[0021] The sealing sleeve 2 is coaxially sleeved on the sealing liner 1 and abuts against the sealing liner 1. The sealing sleeve 2, the spiral sealing sleeve 3, and the sealing liner 1 form a clearance gap. The sealing cover 4 is slidably disposed within the clearance gap.

[0022] The locking nut 5 is rotatably mounted on the bolt 7 via a threaded connection. It is used to lock and push the sealing cover 4, causing the sealing cover 4 and the sealing bushing 1 to form a second pressure seal (external seal).

[0023] like Figure 1 As shown, this utility model also includes: an anti-loosening nut 6 is provided on the bolt 7 by means of a threaded connection, the anti-loosening nut 6 abuts and fits against the locking nut 5, and is used to prevent the locking nut 5 from rotating due to vibration, which would cause the pressure seal to fail.

[0024] The sealing sleeve 2 is enlarged and thickened at the contact area with the sealing liner 1 to increase the contact area with the sealing liner 1. The increased contact area not only improves the sealing effect of the compression but also effectively prevents crushing at the compression area.

[0025] The inner ring of the spiral sealing sleeve 3 is threaded; the sealing liner 1 is made of rubber; the spiral sealing sleeve 3 is made of composite material; the sealing pressure sleeve 2 and the sealing pressure cover 4 are made of steel.

[0026] In practical application, the bolt 7 is inserted into the reserved hole of the part body 8, and then the sealing sleeve 1 is put into the bolt 7 and contacts the part body 8. The spiral sealing sleeve 3 is screwed into the bolt 7 by the thread rotation until it abuts against the sealing liner 1 and forms an effective pressing effect, thereby completing the first pressing seal.

[0027] After the first press seal is completed, the sealing sleeve 2 is coaxially fitted onto the sealing liner 1. At this time, the sealing liner 1, the sealing sleeve 2, and the spiral sealing sleeve 3 form a clearance gap. The sealing cover 4 is slidably set into the clearance gap. Then, the locking nut 5 is tightened. The locking nut 5 squeezes the sealing cover 4, causing the sealing cover 4 to push the pressing force between the sealing sleeve 4 and the sealing liner 1, thereby forming the second press seal.

[0028] By forming a first and a second pressure seal, the sealing effect is greatly improved under the action of the two inner and outer seals, and the stability of the sealing effect is guaranteed and the service life is extended.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A compression seal member, characterized by: Include: Sealing seat (1), sealing bushing (2), spiral sealing bushing (3), sealing gland (4), bolt (7); The bolt (7) is arranged in the part body (8), the sealing seat (1) is arranged on the bolt (7) by sliding sleeve; the spiral sealing bushing (3) is connected with the bolt (7) by thread, and abuts against the sealing seat (1), forming the first press-fit sealing; The sealing bushing (2) is coaxially arranged on the sealing seat (1) and abuts against the sealing seat (1), the sealing bushing (2) and the spiral sealing bushing (3) and the sealing seat (1) constitute the avoiding gap; the sealing gland (4) is arranged in the avoiding gap by sliding; Locking nut (5) is arranged on the bolt (7) by thread connection and rotation, used for locking and pushing the sealing gland (4), prompting the sealing gland (4) and the sealing seat (1) to form the second press-fit sealing.

2. A compression seal member according to claim 1, wherein: The anti-loosening nut (6) is further arranged on the bolt (7) by thread connection, the anti-loosening nut (6) abuts against the locking nut (5), used for preventing the locking nut (5) from rotating due to vibration, and causing the press-fit sealing to fail.

3. A compression seal member according to claim 1, wherein: The sealing bushing (2) is thickened at the abutting part with the sealing seat (1), used for increasing the contact area with the sealing seat (1).

4. A compression seal member according to claim 1, wherein: Thread is arranged in the inner circle of the spiral sealing bushing (3).

5. A compression seal member according to claim 1, wherein: The sealing seat (1) is made of rubber material.

6. A compression seal member according to claim 1, wherein: The spiral sealing bushing (3) is made of composite material.

7. A compression seal member according to claim 1, wherein: The sealing bushing (2) and the sealing gland (4) are made of steel material.

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