CN210319072U

CN210319072U - Connecting pipe with pressure-proof function

Info

Publication number: CN210319072U
Application number: CN201920918176.3U
Authority: CN
Inventors: 古远粦; 何坤勇; 刘在福; 吴丹; 张帆; 曹伟; 周兴
Original assignee: Rifeng Enterprise Chongqing Co Ltd
Current assignee: Rifeng Enterprise Chongqing Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-04-14
Anticipated expiration: 2029-06-18

Abstract

The utility model belongs to the technical field of the pipeline technique and specifically relates to a connecting pipe with prevent pressing function, including low pressure outer tube, inner tube and high pressure outer tube, the fixed low-pressure groove that is provided with in lower part of inner tube, the fixed anti-compression ring that is provided with in the low-pressure groove, the lower part of inner tube is provided with the low pressure screwed pipe, the lower part of low pressure outer tube is provided with the low pressure joint, the fixed transpression groove that is provided with of upper portion inner end face of inner tube, be provided with the buffer tube in the transpression groove, the fixed strengthening ring that is provided with of up end face of buffer tube, the fixed high pressure joint that is provided with of tail end face of high pressure outer tube; through preventing clamping ring, low pressure outer tube and high-pressure outer tube that sets up, prevent that the clamping ring can prevent effectively that the low-pressure region from being out of shape by external force oppression, low pressure outer tube and high-pressure outer tube all play the secondary and prevent the function of external pressure, protect the inner tube not receive the external force oppression, guarantee the normal use of pipeline.

Description

Connecting pipe with pressure-proof function

Technical Field

The utility model relates to the technical field of pipelines, specifically be a connecting pipe with prevent pressing function.

Background

A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. Generally, a fluid is pressurized by a blower, a compressor, a pump, a boiler, etc., and then flows from a high pressure portion to a low pressure portion of a pipe, or is transported by the pressure or gravity of the fluid itself. The use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations.

When the pressure of the water pipe needs to be increased, the internal fluid needs to be changed from a low pressure area to a high pressure area, but when the pipeline is used for a long time, the pressure changing area inside the pipeline is damaged due to pressure change, and a pressure gauge or a pressure alarm needs to be arranged to prevent the pipeline from being broken at any time, so that the connecting pipe with the pressure preventing function is provided from the structure of the pipeline aiming at the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connecting pipe with prevent pressing function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a connecting pipe with prevent pressing function, includes low pressure outer tube, inner tube and high-pressure outer tube, the up end fixed mounting of low pressure outer tube has high-pressure outer tube, the fixed inner tube that is provided with of interior terminal surface of low pressure outer tube and high-pressure outer tube, the fixed low-pressure groove that is provided with in lower part of inner tube, the fixed clamping ring that prevents that is provided with in the low-pressure groove, the lower part of inner tube is provided with the low pressure screwed pipe, the lower part of low pressure outer tube is provided with the low pressure and connects, the fixed groove that changes of terminal surface in the upper portion of inner tube that is provided with, be provided with the buffer tube in the groove that changes, the up end of buffer tube is fixed and is provided with the reinforcement ring, the fixed high pressure.

Prevent that the clamping ring adopts 304 stainless steel pipes to make, and the external diameter equals the internal diameter of inner tube, the quantity of preventing the clamping ring is two, and prevents that the clamping ring is located the low-pressure tank.

Preferably, the sum of the lengths of the low pressure outer tube and the high pressure outer tube is equal to the total length of the inner tube.

Preferably, the inner diameter of the buffer tube increases from bottom to top, the maximum inner diameter of the lower end of the buffer tube is equal to the inner diameter of the inner tube, and the minimum inner diameter of the upper end of the buffer tube is equal to the inner diameter of the reinforcing ring.

Preferably, the low-pressure threaded pipe and the high-pressure threaded pipe are both made of internal threaded pipes, and the inner diameter of the low-pressure threaded pipe is larger than that of the high-pressure threaded pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through preventing clamping ring, low pressure outer tube and high-pressure outer tube that sets up, prevent that the clamping ring can prevent effectively that low-pressure district from being out of shape by external force oppression, low pressure outer tube and high-pressure outer tube all play the secondary and prevent the function of external pressure, protect the inner tube not receive external force oppression, guarantee the normal use of pipeline.

2. The utility model discloses in, through the buffer tube and the reinforcement ring that set up, the shape of buffer tube can be effectively to the rivers reduction impact force that change high nip from low-pressure area, prevents effectively that the inner tube from breaking, has the function of preventing interior pressure, has improved the security of connecting pipe.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the appearance structure of the present invention;

fig. 3 is a schematic structural diagram of the high-pressure joint of the present invention.

In the figure: 1-low pressure outer pipe, 2-inner pipe, 3-low pressure joint, 4-low pressure threaded pipe, 5-pressure-proof ring, 6-high pressure outer pipe, 7-pressure-transfer groove, 8-buffer pipe, 9-reinforcing ring, 10-high pressure threaded pipe, 11-high pressure joint and 12-low pressure groove.

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. 1-3, the present invention provides a technical solution:

a connecting pipe with pressure-proof function comprises a low-pressure outer pipe 1, an inner pipe 2 and a high-pressure outer pipe 6, the upper end surface of the low-pressure outer pipe 1 is fixedly provided with a high-pressure outer pipe 6, the inner end surfaces of the low-pressure outer pipe 1 and the high-pressure outer pipe 6 are fixedly provided with an inner pipe 2, a low pressure groove 12 is fixedly arranged at the lower part of the inner pipe 2, an anti-pressure ring 5 is fixedly arranged in the low pressure groove 12, the lower part of the inner pipe 2 is provided with a low-pressure threaded pipe 4 with a connecting function, the lower part of the low-pressure outer pipe 1 is provided with a low-pressure joint 3, the inner end surface of the upper part of the inner pipe 2 is fixedly provided with a pressure conversion groove 7, a buffer pipe 8 is arranged in the pressure conversion groove 7, a reinforcing ring 9 is fixedly arranged on the upper end face of the buffer tube 8, a high-pressure joint 10 is fixedly arranged on the tail end face of the high-pressure outer tube 6, and a high-pressure threaded tube 10 is fixedly arranged on the inner end face of the reinforcing ring 9; have the function of connecting, through buffer tube 8 and the reinforcing ring 9 that sets up, the shape of buffer tube 8 can be effectively to reducing the impact force from the rivers of low-pressure region to high-pressure region, effectively prevents that the internal pipeline from breaking, has the function of preventing interior pressure, has improved the security of connecting pipe.

The anti-compression rings 5 are made of 304 stainless steel pipes, the outer diameter of each anti-compression ring is equal to the inner diameter of the inner pipe 2, the number of the anti-compression rings 5 is two, and the anti-compression rings 5 are located in the low-pressure grooves 12; the sum of the lengths of the low-pressure outer pipe 1 and the high-pressure outer pipe 6 is equal to the total length of the inner pipe 2; the inner diameter of the buffer tube 8 increases from bottom to top, the maximum inner diameter of the lower end of the buffer tube 8 is equal to the inner diameter of the inner tube 2, and the minimum inner diameter of the upper end of the buffer tube is equal to the inner diameter of the reinforcing ring 9; the low-pressure threaded pipe 4 and the high-pressure threaded pipe 11 are both made of internal threaded pipes, and the inner diameter of the low-pressure threaded pipe 4 is larger than that of the high-pressure threaded pipe 10; prevent that clamping ring 5 can prevent effectively that the low-pressure region from being out of shape by external force oppression, low pressure outer tube 1 and high-pressure outer tube 6 all play the function that the external pressure was prevented to the secondary, and protection inner tube 2 does not receive the external force oppression, guarantees the normal use of pipeline.

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. The utility model provides a connecting pipe with prevent pressing function, includes low pressure outer tube (1), inner tube (2) and high pressure outer tube (6), its characterized in that: a high-pressure outer pipe (6) is fixedly arranged on the upper end surface of the low-pressure outer pipe (1), an inner pipe (2) is fixedly arranged on the inner end surfaces of the low-pressure outer pipe (1) and the high-pressure outer pipe (6), a low pressure groove (12) is fixedly arranged at the lower part of the inner pipe (2), a compression-proof ring (5) is fixedly arranged in the low pressure groove (12), the lower part of the inner pipe (2) is provided with a low-pressure threaded pipe (4), the lower part of the low-pressure outer pipe (1) is provided with a low-pressure joint (3), a rotating pressure groove (7) is fixedly arranged on the inner end surface of the upper part of the inner pipe (2), a buffer tube (8) is arranged in the pressure conversion groove (7), a reinforcing ring (9) is fixedly arranged on the upper end surface of the buffer tube (8), the tail end face of the high-pressure outer pipe (6) is fixedly provided with a high-pressure joint (11), the inner end face of the reinforcing ring (9) is fixedly provided with a high-pressure threaded pipe (10).

2. A connection pipe having a pressure-proof function as set forth in claim 1, wherein: prevent clamping ring (5) and adopt 304 stainless steel pipe to make, and the external diameter equals the internal diameter of inner tube (2), the quantity of preventing clamping ring (5) is two, and prevents that clamping ring (5) is arranged in low-pressure groove (12).

3. A connection pipe having a pressure-proof function as set forth in claim 1, wherein: the sum of the lengths of the low-pressure outer pipe (1) and the high-pressure outer pipe (6) is equal to the total length of the inner pipe (2).

4. A connection pipe having a pressure-proof function as set forth in claim 1, wherein: the inner diameter of the buffer tube (8) is increased from bottom to top, the maximum inner diameter of the lower end of the buffer tube (8) is equal to the inner diameter of the inner tube (2), and the minimum inner diameter of the upper end of the buffer tube is equal to the inner diameter of the reinforcing ring (9).

5. A connection pipe having a pressure-proof function as set forth in claim 1, wherein: the low-pressure threaded pipe (4) and the high-pressure threaded pipe (10) are both made of internal threaded pipes, and the inner diameter of the low-pressure threaded pipe (4) is larger than that of the high-pressure threaded pipe (10).