Mechanical sealing device for corrugated pipe

Abstract

The utility model relates to the field of mechanical sealing devices, and discloses a corrugated pipe mechanical sealing device which comprises a connecting base, a corrugated pipe assembly is arranged in the connecting base, and the two ends of the corrugated pipe assembly are fixedly connected with the connecting base. A damping piece wraps a corrugated pipe in the middle of the corrugated pipe assembly, and the damping piece is connected to the connecting base in a clamped mode. When the corrugated pipe rotates at a high speed, centrifugal force generated by the corrugated pipe can be effectively reduced through the damping piece, and therefore the risk of leakage generated in the operation process can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of mechanical seal devices, in particular to a bellows mechanical seal device. Background Art

[0002] In the existing stationary bellows mechanical seal device, during use, when the rotation speed of the mechanical seal is too high, the centrifugal force generated by the bellows will be too large, and leakage is likely to occur during operation. Summary of the Utility Model

[0003] Based on the above problems, the purpose of the utility model is to provide a bellows mechanical seal device to solve the problems existing in the above prior art.

[0004] The utility model adopts the following technical scheme:

[0005] The utility model provides a bellows mechanical seal device, including:

[0006] A connecting seat, in which a bellows assembly is arranged, and both ends of the bellows assembly are fixedly connected to the connecting seat; a damping member is coated on the bellows in the middle of the bellows assembly, and the damping member is clamped on the connecting seat.

[0007] Further, the damping member is set as a strip-shaped damping belt.

[0008] Still further, an annular groove is arranged along the circumferential direction on the inner wall of the connecting seat, and the damping member is clamped on the connecting seat through the groove.

[0009] Compared with the prior art, the beneficial technical effects of the utility model:

[0010] When the utility model rotates at a high speed, the centrifugal force generated by the bellows can be effectively reduced through the arranged damping member, so as to reduce the risk of leakage during operation. Brief Description of the Drawings

[0011] The following further explains the utility model with reference to the drawings.

[0012] Figure 1 It is a partial plan structure schematic diagram of the bellows mechanical seal device of the utility model;

[0013] Figure 2 It is a plan structure schematic diagram of the bellows assembly of the utility model;

[0014] Figure 3 It is the front view of the damping member of the utility model;

[0015] Figure 4 It is the side view of the damping member of the utility model;

[0016] Figure 5 This is a schematic plan view of the connecting seat of the present utility model.

[0017] Explanation of reference numerals in the drawings: 1. Connecting seat; 101. Card slot; 2. Bellows assembly; 201. Bellows; 202. Ring body; 3. Damping member. Specific embodiments

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0019] As Figures 1-5 shown, in this embodiment, a bellows mechanical seal device is disclosed, which includes a connecting seat 1. A bellows assembly 2 is arranged in the connecting seat 1, and both ends of the bellows assembly 2 are fixedly connected to the connecting seat 1; a damping member 3 is wrapped around the bellows 201 in the middle of the bellows assembly 2, and the damping member 3 is snap-fitted on the connecting seat 1.

[0020] In this embodiment, the ring bodies 202 at both ends of the bellows assembly 2 are respectively fixed to the connecting seat 1 by welding, and the damping member 3 is arranged as a long strip-shaped damping belt; a circumferentially arranged annular card slot 101 is provided on the inner wall of the connecting seat 1, and the damping member 3 is snap-fitted on the connecting seat 1 through the card slot 101; the damping member 3 is adapted to the card slot 101, and the length of the damping belt is the same as the circumference of the card slot 101.

[0021] In the above technical solution, during installation, first snap the long strip-shaped damping belt into the card slot 101 on the connecting seat 1. After installation, the damping belt forms a circular ring structure. Then, pass the bellows assembly 2 through the circular ring structure, so that the damping belt is wrapped around the bellows 201 in the bellows assembly 2. After that, weld and fix the ring bodies 202 at both ends of the bellows assembly 2 to the connecting seat 1 respectively, so that the connecting seat 1, the bellows assembly 2 and the damping member 3 form an integral bellows mechanical seal device.

[0022] It should be noted that after the damping belt is installed, the side with protrusions (such as Figure 4 the left side shown) is wrapped in the gap between adjacent circular ring structures on the outer wall of the bellows 201.

[0023] During use, fixedly sleeved the present utility model on the rotating shaft of the equipment to be sealed. When the equipment is running, the rotating shaft rotates at a high speed, driving the whole of the present utility model to rotate at a high speed. During the rotation process, the damping member 3 can effectively reduce the centrifugal force generated by the bellows 201, thereby reducing the risk of leakage during operation.

[0024] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A bellows mechanical seal device, characterized in that: include: A connecting seat (1), wherein a bellows assembly (2) is arranged in the connecting seat (1), and both ends of the bellows assembly (2) are fixedly connected to the connecting seat (1); a damping member (3) is coated on the bellows (201) in the middle of the bellows assembly (2), and the damping member (3) is clamped on the connecting seat (1).

2. The bellows mechanical seal device according to claim 1, characterized in that: The damping member (3) is configured as a long damping belt.

3. The bellows mechanical seal device according to claim 1, characterized in that: The inner wall of the connection seat (1) is provided with annularly arranged clamping grooves (101) along the circumferential direction, and the damping member (3) is clamped on the connection seat (1) through the clamping grooves (101).

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