CN215635687U

CN215635687U - Vacuum anti-leakage corrugated pipe

Info

Publication number: CN215635687U
Application number: CN202122233041.3U
Authority: CN
Inventors: 张哲�; 李娜; 武金库
Original assignee: Shandong Huarui Bellows Co ltd
Current assignee: Shandong Huarui Bellows Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-01-25
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a vacuum leakage-proof corrugated pipe, and belongs to the technical field of leakage-proof corrugated pipes. A vacuum leak-proof bellows, comprising: connecting pipes fixedly connected to two ends of the corrugated pipe fitting respectively; the mounting discs are respectively and fixedly connected to the two groups of connecting pipes; the buffer sleeve is fixedly connected between the two groups of mounting disks, and a cavity is formed between the buffer sleeve and the corrugated pipe fitting; the supporting cylinder is fixedly connected to one group of the mounting disks; according to the utility model, the buffer sleeve is sleeved on the outer layer of the corrugated pipe fitting to wrap the corrugated pipe fitting, so that leakage of leaked substances to the outside can be prevented when the corrugated pipe fitting is damaged and leaked, and meanwhile, the buffer sleeve is in an S shape and is attached to the first support ring and the second support ring in a contraction state, so that the buffer sleeve can freely stretch and retract when the corrugated pipe fitting needs to stretch and retract, the leakage-preventing function and the stretching function are not in conflict, and the functionality of the corrugated pipe fitting is improved.

Description

Vacuum anti-leakage corrugated pipe

Technical Field

The utility model relates to the technical field of leakage-proof corrugated pipes, in particular to a vacuum leakage-proof corrugated pipe.

Background

The corrugated compensator is a compensating element, and absorbs the dimensional change of pipelines, conduits and containers caused by expansion and contraction due to heat and the like or compensates the axial, transverse and angular displacement of the pipelines, conduits, containers and the like by utilizing the effective telescopic deformation of the working body corrugated pipe; the corrugated compensator is mainly used for noise reduction and vibration reduction and has wide application in modern industry;

the bellows of preventing leaking now is in the use, and when the bellows takes place to leak, though can play certain leak protection effect, nevertheless current prevention of leaking measure can cause the bellows can't stretch out and draw back, has caused the bellows most important flexible deformation function to lose, leads to the functional greatly reduced of bellows.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the most important expansion and contraction deformation function of the corrugated pipe is lost to greatly reduce the functionality of the corrugated pipe due to the fact that the corrugated pipe cannot expand and contract due to the existing leakage-proof measures.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a vacuum leak-proof bellows, comprising: connecting pipes fixedly connected to two ends of the corrugated pipe fitting respectively; the mounting discs are respectively and fixedly connected to the two groups of connecting pipes; the buffer sleeve is fixedly connected between the two groups of mounting disks, and a cavity is formed between the buffer sleeve and the corrugated pipe fitting; the supporting cylinder is fixedly connected to one group of the mounting disks; the first supporting ring is fixedly connected to one end of the supporting cylinder; the second support ring is connected to the other group of mounting discs through a tensioning assembly, and the buffer sleeve is attached to the first support ring and the second support ring in an S shape in a contracted state of the corrugated pipe fitting; and the flange plates are respectively and fixedly connected with the two groups of connecting pipes.

In order to facilitate tensioning and contraction of the second support ring, preferably, the tensioning assembly includes a sliding rod and a first spring, one end of the sliding rod is fixedly connected to the second support ring, the other end of the sliding rod is connected to the mounting disc close to the second support ring in a penetrating and sliding manner, the first spring is sleeved on the sliding rod, one end of the first spring is fixedly connected to the second support ring, and the other end of the first spring is fixedly connected to the mounting disc close to the second support ring.

In order to improve the supporting effect on the buffer sleeve, the supporting cylinder is further close to the buffer sleeve.

In order to reduce the abrasion among the buffer sleeve, the first supporting ring and the second supporting ring, further, balls are embedded in the outer surfaces of the first supporting ring and the second supporting ring in a rolling connection mode, and the balls are attached to the buffer sleeve.

In order to facilitate vacuum pumping, preferably, an inflation tube is fixedly connected to one group of the mounting disks.

In order to facilitate vacuum pumping, preferably, a piston is fixedly connected to one group of the mounting discs, an air inlet pipe and an air outlet pipe are fixedly connected to the piston, the air inlet pipe leads to the cavity, one-way valves are arranged on the air inlet pipe and the air outlet pipe, and a push rod is slidably connected to the piston.

Compared with the prior art, the utility model provides a vacuum leakage-proof corrugated pipe which has the following beneficial effects:

1. according to the vacuum leakage-proof corrugated pipe, the buffer sleeve is S-shaped and is attached to the first support ring and the second support ring when the corrugated pipe is in a contraction state, when the corrugated pipe is required to be stretched, the buffer sleeve extrudes the first spring on the second support ring and enables the sliding rod to slide, so that the buffer sleeve can be stretched, and the stretching and deformation functions of the corrugated pipe are not influenced;

2. this bellows is prevented leaking in vacuum, when bellows spare takes place the damage and leaks, leak in the thing enters into the cavity between bellows spare and the cushion collar, the cushion collar can block that the thing leaks to the external world, play certain effect of preventing leaking, when the pressure that leaks the thing and gush into is too big, strike the cavity, the cavity receives the extrusion and makes the bellows spare extension, the cushion collar is through the first spring of extrusion, make the cushion collar extension, the area of increase cavity, can to a certain extent cushion and leak the thing and gush the pressure when entering the cavity, improve the effect of preventing leaking.

The parts which are not involved in the device are the same as or can be realized by adopting the prior art, the corrugated pipe fitting is wrapped by the buffer sleeve on the outer layer of the corrugated pipe fitting, leakage of leaked substances to the outside can be prevented when the corrugated pipe fitting is damaged and leaked, meanwhile, the buffer sleeve is S-shaped and is attached to the first support ring and the second support ring in a contraction state, and the buffer sleeve can freely stretch along with the corrugated pipe fitting when the corrugated pipe fitting needs to stretch, so that the leakage-preventing function and the stretching function are not in conflict, and the functionality of the corrugated pipe fitting is improved.

Drawings

FIG. 1 is a schematic view of a vacuum leakage-proof bellows according to the present invention;

FIG. 2 is a second schematic view of a vacuum leakage-proof bellows according to the present invention;

FIG. 3 is a schematic view of the structure A in FIG. 1 of a vacuum leak-proof bellows according to the present invention;

FIG. 4 is a schematic view of a vacuum leak-proof bellows shown in FIG. 1B according to the present invention;

fig. 5 is a schematic structural view of C in fig. 2 of a vacuum leakage prevention bellows according to the present invention.

In the figure: 1. a bellows member; 101. a connecting pipe; 102. a flange plate; 103. installing a disc; 104. an inflation tube; 2. a buffer sleeve; 201. a support cylinder; 202. a first support ring; 3. a second support ring; 301. a slide bar; 302. a first spring; 303. a ball bearing; 4. a piston; 401. a push rod; 402. an air inlet pipe; 403. and (4) exhausting the gas.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-5, a vacuum leak prevention bellows includes: connecting pipes 101 fixedly connected to both ends of the corrugated pipe fitting 1 respectively; the mounting discs 103 are respectively and fixedly connected to the two groups of connecting pipes 101; the buffer sleeve 2 is fixedly connected between the two groups of mounting disks 103, and a cavity is formed between the buffer sleeve 2 and the corrugated pipe fitting 1; a support cylinder 201 fixedly connected to one of the sets of mounting disks 103; a first supporting ring 202 fixedly connected to one end of the supporting cylinder 201; the second support ring 3 is connected to the other group of mounting discs 103 through a tensioning assembly, and the buffer sleeve 2 is attached to the first support ring 202 and the second support ring 3 in an S shape in a contraction state of the corrugated pipe fitting 1; the flange plates 102 are respectively and fixedly connected to the two groups of connecting pipes 101, the first supporting ring 202 is close to one side of the mounting disc 103 where the sliding rod 301 is located, and the first supporting ring 202 and the second supporting ring 3 are distributed in a staggered manner; the tensioning assembly comprises a sliding rod 301 and a first spring 302, one end of the sliding rod 301 is fixedly connected to the second support ring 3, the other end of the sliding rod 301 penetrates through the mounting disc 103 close to the second support ring 3 in a sliding manner, the first spring 302 is sleeved on the sliding rod 301, one end of the first spring 302 is fixedly connected to the second support ring 3, and the other end of the first spring 302 is fixedly connected to the mounting disc 103 close to the second support ring 3; one group of mounting discs 103 are fixedly connected with an inflation tube 104;

the corrugated pipe fitting 1 is arranged between external conveying pipelines through the flange plates 102, when the corrugated pipe fitting 1 needs to be stretched during installation, the two groups of flange plates 102 are pulled to be away from each other, the buffer sleeve 2 is impacted by tensile force, the first spring 302 is extruded, the slide rod 301 is pushed to slide on the installation disc 103, the S-shaped buffer sleeve 2 in a contraction state is gradually changed into a straight shape, the distance between the second support ring 3 and the adjacent installation disc 103 is reduced, and after the buffer sleeve 2 is stretched, the anti-leakage effect cannot be weakened;

the slide rod 301 can be changed into a multi-stage telescopic rod, one end of the multi-stage telescopic rod is fixedly connected to the second support ring 3, the other end of the multi-stage telescopic rod is fixedly connected to the mounting disc 103 close to the second support ring 3, and when the first spring 302 is compressed, the multi-stage telescopic rod can freely extend and retract without affecting the work of other parts;

through outside evacuation equipment intercommunication gas tube 104 to bellows spare 1 and cushion collar 2 between the cavity evacuation, when bellows spare 1 takes place the breakage and leaks, liquid or gas enter into the cavity between bellows spare 1 and cushion collar 2, the vacuum environment in the cavity is destroyed, the same with bellows spare internal gas pressure, liquid or gas enter into the cavity after, because cushion collar 2 has the ductility, can provide the cushioning effect to liquid or gas when leaking, prevent to break cushion collar 2, cushion collar 2 can prevent the liquid or the liquid of leaking from spilling simultaneously, when gushing into liquid or the gas in the cavity too much, cushion collar 2 extrudes first spring 302, make the space in the cavity increase, can cushion the liquid or the gas of gushing into to a certain extent, provide certain cushion effect, prevent that cushion collar 2 from breaking and taking place the leakage.

Example 2:

referring to fig. 1, a vacuum leakage preventing bellows, substantially the same as in embodiment 1, further comprising: the supporting cylinder 201 is close to the buffer sleeve 2;

when carrying out the evacuation to the cavity between corrugated pipe spare 1 and the cushion collar 2, a support section of thick bamboo 201 can prevent that cushion collar 2 from leaning on to corrugated pipe spare 1, avoids behind the evacuation corrugated pipe spare 1 and corrugated pipe spare 1 to hug closely, leads to corrugated pipe spare 1 when stretching out and drawing back, presss from both sides cushion collar 2 brokenly, can improve the protection to cushion collar 2 through a support section of thick bamboo 201.

Example 3:

referring to fig. 3, a vacuum leak-proof bellows, substantially the same as in embodiment 1, further comprising: the outer surfaces of the first support ring 202 and the second support ring 3 are embedded with balls 303 in a rolling way, and the balls 303 are attached to the buffer sleeve 2;

when the bellows part 1 extends or contracts and friction occurs between the cushion collar 2 and the first and

second support rings

202 and 3, the balls 303 can reduce friction force and reduce wear between the cushion collar 2 and the first and

second support rings

202 and 3.

Example 4:

referring to fig. 2 and 5, a vacuum leak-proof bellows, substantially the same as in embodiment 1, further comprising: a piston 4 is fixedly connected to one group of mounting discs 103, an air inlet pipe 402 and an air outlet pipe 403 are fixedly connected to the piston 4, the air inlet pipe 402 leads to the cavity, one-way valves are arranged on the air inlet pipe 402 and the air outlet pipe 403, and a push rod 401 is slidably connected to the piston 4;

when the cavity between the corrugated pipe fitting 1 and the buffer sleeve 2 needs to be vacuumized, the push rod 401 is pushed and pulled repeatedly, when the push rod 401 is pulled, the air inlet pipe 402 extracts air in the cavity to enter the piston 4, and when the push rod 401 is pushed, the air in the piston 4 is exhausted out of the piston 4 through the exhaust pipe 403, so that the cavity is vacuumized conveniently.

According to the utility model, the corrugated pipe fitting 1 is wrapped by the buffer sleeve 2 on the outer layer of the corrugated pipe fitting 1, so that leakage of leaked substances to the outside can be prevented when the corrugated pipe fitting 1 is damaged and leaked, meanwhile, the buffer sleeve 2 is S-shaped in a contraction state and is attached to the first support ring 202 and the second support ring 3, and when the corrugated pipe fitting 1 needs to be expanded and contracted, the buffer sleeve 2 can freely expand and contract along with the expansion and contraction, so that the leakage prevention function and the expansion and contraction function are not in conflict, and the functionality of the corrugated pipe fitting 1 is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A vacuum leak-proof bellows, comprising:

connecting pipes (101) fixedly connected to two ends of the corrugated pipe fitting (1) respectively;

the mounting discs (103) are respectively and fixedly connected to the two groups of connecting pipes (101);

the buffer sleeve (2) is fixedly connected between the two groups of mounting discs (103), and a cavity is formed between the buffer sleeve (2) and the corrugated pipe fitting (1);

a support cylinder (201) fixedly connected to one group of the mounting discs (103);

a first supporting ring (202) fixedly connected to one end of the supporting cylinder (201);

the second support ring (3) is connected to the other group of mounting discs (103) through a tensioning assembly, and the buffer sleeve (2) is attached to the first support ring (202) and the second support ring (3) in an S shape in a contraction state of the corrugated pipe fitting (1);

and the flange plates (102) are respectively and fixedly connected with the two groups of connecting pipes (101).

2. A vacuum leakage prevention bellows according to claim 1, wherein the tension assembly comprises a slide bar (301) and a first spring (302), one end of the slide bar (301) is fixedly connected to the second support ring (3), the other end of the slide bar (301) is slidably connected to the mounting disc (103) near the second support ring (3), the first spring (302) is sleeved on the slide bar (301), one end of the first spring (302) is fixedly connected to the second support ring (3), and the other end of the first spring (302) is fixedly connected to the mounting disc (103) near the second support ring (3).

3. A vacuum leakage preventing bellows according to claim 2, wherein said support cylinder (201) is in close proximity to the cushion collar (2).

4. A vacuum leak-proof bellows according to claim 2, wherein balls (303) are roll-connected in-line to outer surfaces of the first support ring (202) and the second support ring (3), and the balls (303) are attached to the cushion collar (2).

5. A vacuum leakage prevention bellows according to claim 1, wherein an inflation tube (104) is fixedly connected to one set of said mounting discs (103).

6. A vacuum leak-proof bellows according to claim 1, wherein a piston (4) is fixedly connected to one set of the mounting discs (103), an inlet pipe (402) and an outlet pipe (403) are fixedly connected to the piston (4), the inlet pipe (402) opens into the cavity, a check valve is disposed on each of the inlet pipe (402) and the outlet pipe (403), and a push rod (401) is slidably connected to the piston (4).