CN214466074U

CN214466074U - Mechanical sealing device of rubber corrugated pipe

Info

Publication number: CN214466074U
Application number: CN202120406273.1U
Authority: CN
Inventors: 王援成; 王亚宁; 步海鹏
Original assignee: Tianjin Liyou Intelligent Equipment Co ltd
Current assignee: Tianjin Liyou Intelligent Equipment Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-10-22
Anticipated expiration: 2031-02-24

Abstract

The utility model relates to the technical field of mechanical seals, in particular to a mechanical seal device of a rubber bellows, comprising an end cover and a shaft sleeve, a sleeve pipe is fixedly connected on the lower end surface of the end cover, and both sides of the sleeve pipe are fixedly connected with A fixed block, a through groove is formed on the sleeve pipe, two arc-shaped plates are arranged in the through-slot, both ends of the arc-shaped plate are fixedly connected with a connecting block, the connecting block is fixedly connected with a sliding block, and a sliding block is opened on the fixed block One side of the connecting block is provided with a threaded through groove, and bolts are threadedly connected between the two connecting blocks through the threaded through groove. In the utility model, a fixing groove is formed on the shaft sleeve to replace the threaded groove, and the end cover and the shaft sleeve are fixed with the arc strip, so as to avoid that the threaded groove is too deep to affect the sealing performance of the device, and the device only needs to be fixed with one bolt , the installation and disassembly are more convenient, and the loading and unloading rate of the device is improved.

Description

Mechanical sealing device of rubber corrugated pipe

Technical Field

The utility model relates to a mechanical seal technical field specifically is a rubber bellows's mechanical seal device.

Background

The rubber bellows mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to a rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of auxiliary seals.

The rotating ring and the static ring are basic structures of mechanical seal, the rotating ring and the static ring are usually fixed with a shaft sleeve by using an end cover, a thread groove is generally formed in the shaft sleeve in the conventional fixing mode, the end cover and the shaft sleeve are fixed by using four bolts, but the shaft sleeve is required to have certain thickness by the method, the sleeve wall of the shaft sleeve is easily abraded when the end cover and the shaft sleeve are fastened, the sealing performance of the device is influenced, and the four bolts are used for being more complicated in installation and disassembly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rubber bellows's mechanical seal device to solve the problem that proposes among the above-mentioned background art.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a mechanical sealing device of a rubber corrugated pipe comprises an end cover and a shaft sleeve, wherein the end cover is sleeved outside the shaft sleeve, a sleeve pipe is fixedly connected on the lower end surface of the end cover, and both sides of the sleeve pipe are fixedly connected with fixed blocks, a through groove is arranged on the sleeve pipe and between the two fixed blocks, the through groove extends into the two fixed blocks and is internally provided with two arc plates, the two ends of the arc-shaped plate are both fixedly connected with connecting blocks, the top and the bottom of each connecting block are both fixedly connected with sliding blocks, the fixed blocks are provided with sliding grooves matched with the sliding blocks, wherein a threaded through groove is arranged in the connecting block at one side, a bolt is connected between the two connecting blocks through the threaded through groove, the fixed slot has been seted up along the circumferencial direction on the axle sleeve, and fixedly connected with and the arc strip of fixed slot looks adaptation on the intrados of arc.

Optionally, the shaft sleeve is provided with a fixing frame fixedly connected to the joint of the two arc-shaped strips in the fixing groove, and the fixing frame is internally provided with a sealing gasket.

Optionally, the two sides of the shaft sleeve are fixedly connected with limiting plates along the length direction of the shaft sleeve, and the inner wall of the sleeve pipe is provided with limiting grooves matched with the limiting plates.

Optionally, one end fixedly connected with stopper of bolt, the other end fixedly connected with hexagon head of bolt, and the hexagon head has seted up the plum blossom groove on keeping away from the terminal surface of bolt.

Compared with the prior art, the utility model provides a rubber bellows's mechanical seal device possesses following beneficial effect:

1. the utility model discloses a set up the fixed slot on the axle sleeve and replace the thread groove, cooperate the arc strip to fix end cover and axle sleeve, avoid the thread groove to set up too deeply and influence the leakproofness of device to this device only needs to use a bolt to fix, and it is more convenient to install and dismantle, improves the loading and unloading speed of device;

2. the utility model discloses a juncture of two arc strips sets up seal ring in the fixed slot, makes the junction of two arc strips inseparabler, further hoisting device's sealed effect.

Drawings

FIG. 1 is a top cross-sectional view of the structure of the present invention;

fig. 2 is a schematic view of the arc plate and its internal structure.

In the figure: 1. an end cap; 2. a shaft sleeve; 3. sleeving a pipe; 4. a fixed block; 5. a through groove; 6. a groove; 7. an arc-shaped plate; 8. connecting blocks; 9. a slider; 10. a sliding groove; 11. a threaded through slot; 12. a bolt; 13. fixing grooves; 14. an arc-shaped strip; 15. a fixed frame; 16. a sealing gasket; 17. a limiting plate; 18. a limiting groove; 19. a limiting block; 20. a hexagonal head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a mechanical sealing device of rubber corrugated pipe comprises an end cover 1 and a shaft sleeve 2, wherein the end cover 1 is sleeved outside the shaft sleeve 2, two sides of the shaft sleeve 2 are fixedly connected with limit plates 17 along the length direction of the shaft sleeve, limit grooves 18 matched with the limit plates 17 are formed in the inner wall of a sleeve 3, the lower end face of the end cover 1 is fixedly connected with the sleeve 3, two sides of the sleeve 3 are fixedly connected with fixed blocks 4, a through groove 5 is formed in the sleeve 3 and positioned between the two fixed blocks 4, the through groove 5 extends into the two fixed blocks 4 to form a groove 6, two arc-shaped plates 7 are arranged in the through groove 5, two ends of each arc-shaped plate 7 are fixedly connected with connecting blocks 8, the top and the bottom of each connecting block 8 are fixedly connected with sliding blocks 9, the sliding blocks 4 are provided with sliding grooves 10 matched with the sliding blocks 9, a threaded through groove 11 is formed in one connecting block 8, and a bolt 12 is in threaded connection between the two connecting blocks 8 through the threaded through grooves 11, one end of the bolt 12 is fixedly connected with a limiting block 19, the other end of the bolt 12 is fixedly connected with a hexagonal head 20, a quincuncial groove is formed in the end face, away from the bolt 12, of the hexagonal head 20, a fixing groove 13 is formed in the shaft sleeve 2 in the circumferential direction, an arc-shaped strip 14 matched with the fixing groove 13 is fixedly connected to the inner arc face of the arc-shaped plate 7, the fixing groove 13 is formed in the shaft sleeve 2 to replace a threaded groove, the end cover 1 and the shaft sleeve 2 are fixed by matching with the arc-shaped strip 14, the situation that the sealing performance of the device is affected due to the fact that the threaded groove is formed too deeply is avoided, and the device only needs to be fixed by one bolt 12, installation and disassembly are more convenient, and the assembly and disassembly speed of the device is improved;

the fixed frame 15 is fixedly connected to the connecting part of the two arc-shaped strips in the fixing groove 13 on the shaft sleeve 2, the sealing gaskets 16 are arranged in the fixed frame 15, the sealing gaskets 16 are arranged at the junction of the two arc-shaped strips 14 in the fixing groove 13, so that the connecting part of the two arc-shaped strips 14 is more compact, and the sealing effect of the device is further improved.

The working principle is as follows: when the end cover 1 and the shaft sleeve 2 need to be fixed, the end cover 1 is sleeved on the periphery of the shaft sleeve 2 through the sleeve 3, the sleeve 3 is rotated to enable the limiting plate 17 to be matched with the limiting groove 18, the sleeve 3 is limited and fixed, a screwdriver is used for rotating the bolt 12 through a quincuncial groove on the hexagonal head 20 to enable the arc-shaped strips 14 to be matched with the fixing groove 13, and the bolt 12 is screwed down to enable the two arc-shaped strips 14 to extrude the sealing washer 16 to seal the joint of the two arc-shaped strips; when the device is disassembled, the operation is reversed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mechanical sealing device for a rubber bellows, comprising an end cover (1) and a shaft sleeve (2), the end cover (1) being sleeved on the outside of the shaft sleeve (2), characterized in that: the end cover A sleeve pipe (3) is fixedly connected to the lower end surface of (1), and fixing blocks (4) are fixedly connected to both sides of the sleeve pipe (3), and the sleeve pipe (3) is located on two fixed blocks ( 4) A through groove (5) is opened between the through grooves (5), a groove (6) extends into the two fixing blocks (4), and two arc-shaped through grooves (5) are arranged in the through groove (5). Plate (7), both ends of the arc-shaped plate (7) are fixedly connected with connecting blocks (8), the top and bottom of the connecting block (8) are fixedly connected with sliding blocks (9), and the fixed block (4) is provided with a sliding groove (10) adapted to the sliding block (9), wherein one side of the connecting block (8) is provided with a threaded through groove (11), and the two connecting blocks (8) A bolt (12) is threadedly connected therebetween through a threaded through groove (11), a fixing groove (13) is opened on the shaft sleeve (2) along the circumferential direction, and the inner arc surface of the arc-shaped plate (7) is fixedly connected There are arc strips (14) matched with the fixing grooves (13).

2 . The mechanical sealing device of a rubber bellows according to claim 1 , wherein the shaft sleeve ( 2 ) is fixedly connected at the junction of the two arc strips in the fixing groove ( 13 ). 3 . A fixing frame (15) is provided with a sealing gasket (16) in the fixing frame (15).

3. A mechanical sealing device for a rubber bellows tube according to claim 1, characterized in that: both sides of the shaft sleeve (2) are fixedly connected to the limiting plate (17) along its length direction, and the sleeve tube The inner wall of (3) is provided with a limit groove (18) which is matched with the limit plate (17).

4. A mechanical sealing device for rubber bellows according to claim 1, characterized in that: one end of the bolt (12) is fixedly connected to the limiting block (19), and the other end of the bolt (12) is fixed A hexagonal head (20) is connected, and a plum blossom groove is formed on the end face of the hexagonal head (20) away from the bolt (12).