CN110715123A

CN110715123A - Double-clamping sleeve sealing structure

Info

Publication number: CN110715123A
Application number: CN201911005540.8A
Authority: CN
Inventors: 徐洪生; 全伟军; 张家炜; 陈清
Original assignee: Hubei Ruihe Rail Transit Development Co Ltd
Current assignee: Hubei Ruihe Rail Transit Development Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-01-21

Abstract

The invention discloses a double-clamping sleeve sealing structure which comprises a fixed block, wherein connecting pipes are arranged on two sides of the fixed block, clamping sleeve nuts are arranged on the surfaces of the two connecting pipes through threads, directional arrows are arranged on the surfaces of the two clamping sleeve nuts, a fixed plate is fixedly connected between the two sides of the inner wall of the fixed block, a vertical plate is fixedly connected to the top of the fixed plate, extension springs are fixedly connected to the two sides of the vertical plate, a sliding plate is fixedly connected to the separated end of each extension spring, a connecting rod is fixedly connected to the separated side of each sliding plate, and the separated end of each connecting rod penetrates through the fixed block and extends to the outside of the fixed block. The double-clamping-sleeve sealing structure is provided with the connecting rod and the fixing device, so that the clamping sleeve nut can be fixed in the horizontal direction, the clamping sleeve nut is prevented from loosening, the connecting rod and the clamping sleeve nut can be connected more stably, and a better use prospect is brought.

Description

Double-clamping sleeve sealing structure

Technical Field

The invention relates to the technical field of double-clamping sleeve pipe joints, in particular to a double-clamping sleeve pipe sealing structure.

Background

The double-clamping sleeve joint is invented by America Fredrend in one, nine or four seven years, compared with the joint forms of screw thread, reaming hole and single-clamping sleeve joint, the double-clamping sleeve joint is a small-bore pipeline connecting piece which can give consideration to sealing and safety, an excellent double-clamping sleeve joint can bear the pressure of pipe explosion without leakage, can be used for vacuum and high-pressure liquid systems, can work to guarantee sealing in a low-temperature state, can seal permanently at the highest rated temperature of the pipe and can be repeatedly disassembled and assembled, the performances of the double-clamping sleeve joint can ensure that the double-clamping sleeve joint is widely applied to the industries of instruments, chemical engineering, electric power, gas and the like, the clamping sleeve type pipe joint is a sealing pipe joint suitable for non-corrosive or corrosive media such as oil, water, gas and the like, the specification requirement of an aluminum plastic pipe is more flexible, and after the double-clamping sleeve joint is connected with a pipeline, the double-clamping sleeve joint, The sealing performance is good, so the sealing ring is widely used in systems of oil refining, chemical engineering, light industry, textile, national defense, metallurgy, aviation, ships and the like, and is also suitable for hydraulic transmission pipelines of various mechanical engineering, machine tool equipment and the like.

No matter double cassette union coupling and single card cup joint, all seal through cutting ferrule nut and cutting ferrule sealing washer, but cutting ferrule nut is not hard up because self connected mode problem is easy in long-term use, and in case not hard up back will be very big influence the leakproofness that the union coupling to produce the potential safety hazard.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a double-clamping sleeve sealing structure which has the advantages of preventing a clamping sleeve nut from loosening, ensuring the sealing property of a double-clamping sleeve joint, ensuring the normal service life of the double-clamping sleeve joint and the like, and solves the problem that the clamping sleeve nut is easy to loosen due to the self-connection mode in long-term use, and once the clamping sleeve nut loosens, the sealing property of the sleeve joint is greatly influenced, so that potential safety hazards are generated.

(II) technical scheme

In order to achieve the purposes of preventing the clamping sleeve nut from loosening, ensuring the sealing performance of the double-clamping sleeve joint and ensuring the normal service life of the double-clamping sleeve joint, the invention provides the following technical scheme: double cassette pipe seal structure, including the fixed block, the both sides of fixed block all are provided with the connecting pipe, two the surface of connecting pipe all is provided with cutting ferrule nut through the screw thread to two cutting ferrule nut's surface all is provided with directional arrow point, equal fixedly connected with fixed plate between the both sides of fixed block inner wall, the equal fixedly connected with riser in top of fixed plate, the equal fixedly connected with extension spring in both sides of riser, two the equal fixedly connected with sliding plate of one end that extension spring leaves, two the equal fixedly connected with connecting rod in one side that the sliding plate leaves.

Preferably, two the one end that the connecting rod departed from all runs through the fixed block and extends to the outside of fixed block, two the inner wall that the connecting rod extends to the outside one end of fixed block all is provided with fixing device.

Preferably, fixing device includes mounting panel, baffle, fixed spring, stripper plate and dead lever, the top and the bottom of mounting panel respectively with the top and the bottom fixed connection of connecting rod inner wall, fixedly connected with baffle between one side that mounting panel and connecting rod are relative, the equal fixedly connected with fixed spring in top and the bottom of baffle, two the equal fixedly connected with stripper plate of one end that fixed spring leaves to the both sides of two stripper plates respectively with one side of mounting panel and one side sliding connection of connecting rod inner wall, two the equal fixedly connected with dead lever in one side that the stripper plate leaves, and the one end that two dead levers leave all runs through the connecting rod and extends to the outside of connecting rod.

Preferably, two equal fixedly connected with squeeze bar in the one side that the squeeze bar looks from, two the one end that the squeeze bar looks from all runs through the connecting rod and extends to the outside of connecting rod, two the equal fixedly connected with of one end that the squeeze bar extends to the connecting rod outside presses the board.

Preferably, both sides of the fixed block are communicated with one end of each connecting pipe, the surfaces of the two connecting pipes are in threaded connection with the inner wall of the ferrule nut through threads, the surfaces of the two directional arrows are mounted on the surface of the ferrule nut, and the top and the bottom of the two sliding plates are respectively in sliding connection with the top of the inner wall of the fixed block and the top of the fixed plate.

Preferably, two the fixed orifices have all been seted up to the relative one side of cutting ferrule nut to the fixed slot has all been seted up to the both sides of fixed orifices inner wall.

Preferably, the number of the fixing devices is two, and the two fixing devices have the same structure and connection mode.

(III) advantageous effects

Compared with the prior art, the invention provides a double-clamping sleeve sealing structure which has the following beneficial effects:

the double-clamping sleeve sealing structure comprises a connecting rod, an extension spring and the like, wherein the connecting rod is pulled through an extrusion rod, the connecting rod drives a sliding plate to move, the sliding plate drives the extension spring to contract, a clamping sleeve nut is rotated to a preset position to fix a clamping sleeve and a pipeline, the connecting rod is sent out to be connected with the clamping sleeve nut, so that the clamping sleeve nut is fixed in a horizontal reverse direction, the clamping sleeve nut is prevented from rotating, the purpose of stabilizing the clamping sleeve nut is achieved, the sealing performance of the double-clamping sleeve is ensured, the service life of the double-clamping sleeve is ensured, the double-clamping sleeve is prevented from losing the sealing performance due to the aging of a non-sealing ring, through the arrangement of a fixing device, when the connecting rod enters a fixing hole, the fixing rod is extruded to drive the extrusion plate to move, the extrusion plate drives the fixing spring to contract, when the fixing rod moves, make dead lever and cutting ferrule nut be connected to make connecting rod and cutting ferrule nut be connected inseparabler, reduce the error, further prevent that cutting ferrule nut is not hard up, guarantee the leakproofness.

Drawings

FIG. 1 is a schematic view of the overall structure of the double-bayonet sleeve sealing structure of the present invention;

FIG. 2 is a schematic view of a fixing block structure of the double-clamp sleeve sealing structure of the present invention;

FIG. 3 is a schematic side view of a ferrule nut of the dual ferrule seal structure of the present invention;

fig. 4 is a schematic structural view of the fixing device for the double-clamping sleeve sealing structure of the invention.

In the figure: 1. a fixed block; 2. a connecting pipe; 3. a thread; 4. cutting the nut; 5. a pointing arrow; 6. A fixing plate; 7. a vertical plate; 8. a sliding plate; 9. an extension spring; 10. a connecting rod; 11. a fixing device; 111. mounting a plate; 112. a partition plate; 113. fixing the spring; 114. a pressing plate; 115. fixing the rod; 12. A fixing hole; 13. an extrusion stem; 14. and (4) pressing the board.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the double-clamping sleeve sealing structure includes a fixing block 1, and is characterized in that: the two sides of the fixed block 1 are both provided with connecting pipes 2, the surfaces of the two connecting pipes 2 are both provided with clamping sleeve nuts 4 through threads 3, and the surfaces of the two ferrule nuts 4 are respectively provided with a directional arrow 5, so that the installation is convenient, a fixed plate 6 is fixedly connected between the two sides of the inner wall of the fixed block 1, a vertical plate 7 is fixedly connected at the top of the fixed plate 6, extension springs 9 are fixedly connected at the two sides of the vertical plate 7, a sliding plate 8 is fixedly connected at the end where the two extension springs 9 are separated, a connecting rod 10 is fixedly connected at the side where the two sliding plates 8 are separated, the connecting rod 10 is connected with the ferrule nuts 4, thereby fixing the ferrule nut 4 in horizontal reverse direction, preventing the ferrule nut 4 from rotating, achieving the purpose of stabilizing the ferrule nut 4, thereby guarantee double cassette sleeve's leakproofness, guarantee double cassette sleeve's life, prevent that double cassette sleeve from losing the leakproofness because the non-sealing washer is ageing.

Further, the one end that two connecting rods 10 leave mutually all runs through fixed block 1 and extends to the outside of fixed block 1, and the inner wall that two connecting rods 10 extend to the outside one end of fixed block 1 all is provided with fixing device 11.

Further, the fixing device 11 includes a mounting plate 111, a partition plate 112, fixing springs 113, pressing plates 114 and fixing rods 115, the top and the bottom of the mounting plate 111 are fixedly connected with the top and the bottom of the inner wall of the connecting rod 10, respectively, the partition plate 112 is fixedly connected between the mounting plate 111 and the opposite side of the connecting rod 10, the top and the bottom of the partition plate 112 are fixedly connected with the fixing springs 113, the ends of the two fixing springs 113 away from each other are fixedly connected with the pressing plates 114, the two sides of the two pressing plates 114 are slidably connected with one side of the mounting plate 111 and one side of the inner wall of the connecting rod 10, the sides of the two pressing plates 114 away from each other are fixedly connected with the fixing rods 115, the ends of the two fixing rods 115 away from each other penetrate through the connecting rod 10 and extend to the outside of the connecting rod 10, the fixing rods 115 are connected with the, reduce the error, further prevent that cutting ferrule nut 4 is not hard up, guarantee the leakproofness.

Further, the equal fixedly connected with stripper bar 13 in one side that two stripper plates 114 leave, the one end that two stripper bars 13 leave all runs through connecting rod 10 and extends to the outside of connecting rod 10, and the equal fixedly connected with of one end that two stripper bars 13 extend to the connecting rod 10 outside presses board 14, makes things convenient for connecting rod 10 and cutting ferrule nut 4 to separate.

Further, the both sides of fixed block 1 all communicate with the one end of connecting pipe 2, and the surface of two connecting pipes 2 all passes through the inner wall threaded connection of screw thread 3 with cutting ferrule nut 4 to two directional arrow 5's surface is all installed in the surface of cutting ferrule nut 4, the top and the bottom of two sliding plates 8 respectively with the top of fixed block 1 inner wall and the top sliding connection of fixed plate 6.

Further, fixing hole 12 has all been seted up to two relative one sides of cutting ferrule nut 4 to the fixed slot has all been seted up to the both sides of fixing hole 12 inner wall, makes things convenient for dead lever 115 to be connected with cutting ferrule nut 4.

Further, the number of the fixing devices 11 is two, and the two fixing devices 11 have the same structure and connection mode.

The working principle is as follows: the double-clamping sleeve sealing structure comprises a connecting rod 10, an extension spring 9 and other devices, wherein the connecting rod 10 is pulled through an extrusion rod 13, the connecting rod 10 drives a sliding plate 8 to move, the sliding plate 8 drives the extension spring 9 to contract, a clamping sleeve nut 4 is rotated to a preset position to fix a clamping sleeve and a pipeline, the connecting rod 10 is sent out to connect the connecting rod 10 with the clamping sleeve nut 4, so that the clamping sleeve nut 4 is horizontally and reversely fixed, the clamping sleeve nut 4 is prevented from rotating, the purpose of stabilizing the clamping sleeve nut 4 is achieved, the sealing performance of the double-clamping sleeve is ensured, the service life of the double-clamping sleeve is ensured, the double-clamping sleeve is prevented from losing the sealing performance due to aging of a non-sealing ring, and through the arrangement of a fixing device 11, when the connecting rod 10 enters a fixed hole 12, a fixed rod 115 is extruded to drive an extrusion plate 114, when dead lever 115 moves to the fixed slot position, because the elastic force of fixed spring 113 self pops out dead lever 115 for dead lever 115 is connected with cutting ferrule nut 4, thereby makes connecting rod 10 be connected inseparabler with cutting ferrule nut 4, reduces the error, further prevents that cutting ferrule nut 4 from becoming flexible, guarantees the leakproofness.

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. Double cassette sleeve pipe seal structure, including fixed block (1), its characterized in that: the both sides of fixed block (1) all are provided with connecting pipe (2), two the surface of connecting pipe (2) all is provided with cutting ferrule nut (4) through screw thread (3) to the surface of two cutting ferrule nuts (4) all is provided with directional arrow point (5), equal fixedly connected with fixed plate (6) between the both sides of fixed block (1) inner wall, the equal fixedly connected with riser (7) in top of fixed plate (6), the equal fixedly connected with extension spring (9) in both sides of riser (7), two the equal fixedly connected with sliding plate (8) of one end that extension spring (9) leave mutually, two the equal fixedly connected with connecting rod (10) in one side that sliding plate (8) leave mutually.

2. The double-bayonet sleeve seal structure of claim 1, wherein: two the one end that connecting rod (10) kept away from all runs through fixed block (1) and extends to the outside of fixed block (1), two the inner wall that connecting rod (10) extended to fixed block (1) outside one end all is provided with fixing device (11).

3. The double-bayonet sleeve seal structure of claim 1, wherein: the fixing device (11) comprises a mounting plate (111), a clapboard (112), a fixing spring (113), a pressing plate (114) and a fixing rod (115), the top and the bottom of the mounting plate (111) are respectively and fixedly connected with the top and the bottom of the inner wall of the connecting rod (10), a clapboard (112) is fixedly connected between the opposite sides of the mounting plate (111) and the connecting rod (10), the top and the bottom of the clapboard (112) are both fixedly connected with fixed springs (113), one ends of the two fixed springs (113) which are separated from each other are both fixedly connected with a squeezing plate (114), two sides of the two extrusion plates (114) are respectively connected with one side of the mounting plate (111) and one side of the inner wall of the connecting rod (10) in a sliding way, the separated sides of the two extrusion plates (114) are both fixedly connected with a fixed rod (115), and one end of each fixing rod (115) which is away from each other penetrates through the connecting rod (10) and extends to the outside of the connecting rod (10).

4. The double-bayonet sleeve seal structure of claim 1, wherein: two equal fixedly connected with stripper bar (13) in one side that stripper plate (114) leave, two the one end that stripper bar (13) leave all runs through connecting rod (10) and extends to the outside of connecting rod (10), two the equal fixedly connected with of one end that stripper bar (13) extend to the outside of connecting rod (10) presses board (14).

5. The double-bayonet sleeve seal structure of claim 1, wherein: the both sides of fixed block (1) all communicate with the one end of connecting pipe (2), two the surface of connecting pipe (2) all passes through the inner wall threaded connection of screw thread (3) with cutting ferrule nut (4) to the surface of two directional arrows (5) is all installed in the surface of cutting ferrule nut (4), two the top and the bottom of sliding plate (8) respectively with the top of fixed block (1) inner wall and the top sliding connection of fixed plate (6).

6. The double-bayonet sleeve seal structure of claim 1, wherein: two fixed orifices (12) have all been seted up to the relative one side of cutting ferrule nut (4) to the fixed slot has all been seted up to the both sides of fixed orifices (12) inner wall.

7. The double-bayonet sleeve seal structure of claim 1, wherein: the number of the fixing devices (11) is two, and the structures and the connection modes of the two groups of fixing devices (11) are the same.