CN220186115U

CN220186115U - Fire control steel pipe pipeline connection structure

Info

Publication number: CN220186115U
Application number: CN202321351420.5U
Authority: CN
Inventors: 张建龙; 曾宇杰; 陈艳萍; 任军平
Original assignee: Fangyuan Construction Group Co ltd
Current assignee: Fangyuan Construction Group Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-12-15
Anticipated expiration: 2033-05-31

Abstract

The utility model relates to the technical field of pipeline connection, and provides a fire-fighting steel pipe pipeline connection structure, which comprises a sealing ring, two hoops and a fastening piece, wherein the sealing ring is arranged between adjacent pipelines, the two hoops are symmetrically arranged along the axial direction of the pipeline, the fastening piece is used for fastening the two hoops, the two hoops are arranged in a semicircular shape, and the sealing ring has elasticity; the sealing ring comprises a sealing body which is abutted against the end face of the pipeline and a first abutting part which is arranged on the sealing body, wherein the first abutting part is abutted against the outer peripheral wall of the pipeline, a through groove is formed in the inner peripheral wall of the sealing body, and a first cavity communicated with the through groove is formed in the first abutting part; the inner peripheral wall butt of clamp is in first butt portion, the both sides limit of clamp is all around being equipped with the arc fixture block, the periphery wall of pipeline is around being equipped with the slot that supplies the arc fixture block to block. The utility model has the beneficial effect of improving the sealing performance of the sealing ring on the pipeline.

Description

Fire control steel pipe pipeline connection structure

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a fire-fighting steel pipe pipeline connection structure.

Background

The inner and outer coated steel pipes are usually selected for the hydrant system and the spraying system, and the coated steel pipes with DN more than or equal to 50 are usually connected by grooves, and the groove connection is a simple and convenient pipeline connection mode, so that the surface anti-corrosion coating of the pipeline can be well preserved, and the construction efficiency is improved.

Among the prior art, slot connection is including setting up the sealing washer between adjacent pipeline, set up two clamp that are semicircle form and the fastener with two clamp connection on the pipeline, earlier with the terminal surface butt of two pipelines that need connect on the sealing washer after, will set up the fixture block card on the clamp inner peripheral wall and inlay in the slot that the pipeline outer peripheral wall was equipped with afterwards, with the fastener with two clamp connection again to add with the pipeline butt in the terminal surface of sealing washer, thereby accomplish the slot connection to the pipeline.

For the fire-fighting pipeline of the open system, water is not filled in the pipeline at ordinary times, and water can be filled after an alarm is given, so that the sealing ring and the pipeline are required to be tightly abutted when the sealing ring is installed between adjacent pipelines in order to keep the sealing performance between the sealing ring and the pipeline after water is filled in the subsequent fire-fighting pipeline. However, after long-term tight abutment, deformation may occur when the sealing ring is pressed for a long time, so that the sealing performance of the sealing ring on the pipeline is reduced, and after water is introduced into the pipeline in the later stage, the introduced water flow is high-pressure water flow, so that the water flow may flow out from a gap between the sealing ring and the pipeline, and further improvement is needed.

Disclosure of Invention

In order to improve the sealing performance of the sealing ring on a pipeline, the utility model provides a fire-fighting steel pipe pipeline connecting structure.

The utility model provides a fire-fighting steel pipe connecting structure, which adopts the following technical scheme:

the utility model provides a fire control steel pipe pipeline connection structure, includes the sealing washer that is used for setting up between adjacent pipeline, along two clamps of pipeline axial symmetry setting and the fastener of fastening two clamps, two clamps all are the semicircle form setting, the sealing washer has elasticity; the sealing ring comprises a sealing body which is abutted against the end face of the pipeline and a first abutting part which is arranged on the sealing body, wherein the first abutting part is abutted against the outer peripheral wall of the pipeline, a through groove is formed in the inner peripheral wall of the sealing body, and a first cavity communicated with the through groove is formed in the first abutting part; the inner peripheral wall butt of clamp is in first butt portion, the both sides limit of clamp is all around being equipped with the arc fixture block, the periphery wall of pipeline is around being equipped with the slot that supplies the arc fixture block to block.

By adopting the technical scheme, after the end faces of the pipelines are sealed by the sealing ring, two arc-shaped clamping blocks on the clamping hoop are respectively clamped and embedded in grooves on the two pipelines to fix the two pipelines, and when the clamping hoop is fixed by the fastening piece, the inner peripheral wall of the clamping hoop is abutted to the first abutting part, so that the first abutting part is tightly abutted to the outer peripheral wall of the pipelines to seal the outer peripheral wall of the pipelines; when water is not filled in the pipeline, the channel can provide a certain expansion space for the sealing body after being extruded by the end face of the pipeline, so that the possibility of deformation of the sealing body after being pressed is reduced, and the possibility of deformation of the first abutting part after being pressed by the clamp for a long time can be reduced by arranging the first cavity in the same way; and after the pipeline is filled with water, the water flow of the pipeline enters the first cavity through the through groove at the moment so as to apply acting force to the inner wall of the through groove and the inner wall of the first cavity, namely acting force is applied to the sealing body and the first abutting part, so that the sealing body and the first abutting part are tightly abutted to the end face and the peripheral wall of the pipeline, and the sealing performance is better when the water flow pressure in the pipeline is larger, so that the sealing effect of the sealing ring on the pipeline is further improved.

Preferably, the two ends of the first cavity extend towards the two end surfaces close to the first abutting portion respectively to form a second cavity.

By adopting the technical scheme, the two ends of the first cavity are respectively extended towards the two ends close to the first abutting part to be provided with the second cavity, so that on one hand, the inflow flow of water can be increased, and the pressure applied to the first abutting part in the first cavity and the second cavity is increased, so that the first abutting part is further tightly abutted against the outer peripheral wall of the pipeline, and the sealing effect of the first abutting part on the outer peripheral wall of the pipeline is improved; on the other hand, the expandable range of the first abutment is further increased.

Preferably, the second cavities are all arc-shaped, and the second cavities are arranged far away from the sealing body.

Through adopting above-mentioned technical scheme, through being the arc setting with the second cavity for the rivers that flow into in the second cavity can be along the arc towards being close to the direction removal of the outer peripheral wall of first butt portion butt in the pipeline, thereby further improve the compactness of first butt portion butt in the outer peripheral wall of pipeline, thereby with the sealed effect of improvement first butt portion to pipeline outer peripheral wall.

Preferably, the clamp is provided with a reinforcing block away from the outer peripheral wall of the first abutting portion in a protruding manner.

Through adopting above-mentioned technical scheme, owing to be equipped with first cavity and second cavity, after having water in first cavity and second cavity intussuseption, it can be conducted to the clamp when water pressure is exerted pressure to first butt portion, through being provided with the reinforcement piece at the clamp in the perisporium protrusion of keeping away from first butt portion this moment, can improve the rigidity intensity of clamp this moment to improve the bearing capacity of clamp to pressure.

Preferably, the inner peripheral wall of the sealing body is provided with a flaring communicated with the through groove.

By adopting the technical scheme, the flaring is arranged, so that water in the pipeline flows into the first cavity along the flaring.

Preferably, the sealing ring is embedded with a reinforcing piece.

Through adopting above-mentioned technical scheme, through at the embedded reinforcement that is equipped with of sealing washer, can improve the rigidity intensity of sealing washer to improve the bearing capacity of this sealing washer to water pressure, in order to improve the life of this sealing washer.

Preferably, the reinforcement member includes a first reinforcement portion embedded in the sealing body and a second reinforcement portion embedded in the first abutting portion, the first reinforcement portion and the second reinforcement portion are disposed close to the pipe, and an L-shaped portion is disposed between the first reinforcement portion and the second reinforcement portion.

Through adopting above-mentioned technical scheme, owing to set up logical groove and first cavity, behind the intraductal water that leads to of pipeline, owing to the exerting pressure of rivers, perhaps make first butt portion move towards the direction that is close to logical groove, thereby make logical groove appear closing state, and at this moment, the clearance between first butt portion and the pipeline terminal surface can increase, water that lies in the pipeline can circulate through the clearance, make the pipeline junction appear leaking water possible, therefore through being provided with first reinforcing portion and second reinforcing portion, and owing to be L type setting between first reinforcing portion and the second reinforcing portion, when first butt portion is pressed, the second reinforcing portion receives the angle setting of first reinforcing portion at this moment, can make the first butt portion can be towards the scope that the direction of logical groove moved to some extent, make the passageway be open state when the rivers in the pipeline are leading to, thereby with the possibility that reduces leaking water.

Preferably, the sealing body extends into the pipeline, and the sealing ring further comprises second abutting parts arranged on two opposite side walls of the sealing body, and the second abutting parts are abutted against the inner peripheral wall of the pipeline.

Through adopting above-mentioned technical scheme, through being provided with second butt portion to increase the butt area between sealing washer and the pipeline, thereby with the leakproofness of increase sealing washer to the pipeline.

Preferably, a fixing ring is wound around the inner peripheral wall of the pipe, and the fixing ring abuts against the second abutting portion.

Through adopting above-mentioned technical scheme, because second butt portion butt in the inner peripheral wall of pipeline, have certain difference in height between second butt portion and the pipeline inner peripheral wall this moment, thereby the water pressure exerts effort to second butt portion and makes second butt portion possible deformation when rivers pass through the pipeline, through being provided with solid fixed ring, gu fixed ring reducible second butt portion received water pressure reduces the possibility that second butt portion appears warping.

Preferably, the fixing ring is provided with a stopper in a protruding manner, and the stopper abuts against a surface of the second abutting portion away from the inner peripheral wall of the pipe.

Through adopting above-mentioned technical scheme, through being provided with the stopper to increase the area of contact between solid fixed ring and the second butt portion, and also increase the tortuosity of clearance between the two, thereby with the possibility that reduces the rivers in the pipeline flow along the clearance between solid fixed ring and the second butt portion.

In summary, the utility model has the following beneficial effects:

1. by arranging the channel and the first cavity, a certain expansion space can be provided for the first abutting part of the sealing body respectively, so that the possibility of deformation caused by subsequent long-term compression is reduced, and the service life and the tightness of the sealing ring are improved; and after the pipeline is filled with water, acting force is applied to the sealing body and the first abutting part, so that the sealing body and the first abutting part are tightly abutted against the end face and the peripheral wall of the pipeline, and the sealing effect of the sealing ring on the pipeline is further improved as the water flow pressure in the pipeline is larger, the sealing performance is better.

2. Through the embedded reinforcement that is equipped with at the sealing washer, can improve the rigidity intensity of sealing washer to improve the bearing capacity of this sealing washer to water pressure, in order to improve the life of this sealing washer.

3. Through being provided with the solid fixed ring, the solid fixed ring reducible second butt portion receives the water pressure, reduces the second butt portion and appears the possibility of deformation.

Drawings

FIG. 1 is a schematic cross-sectional view of embodiment 1 of the present utility model;

FIG. 2 is a schematic view of the structure of the fastener in embodiment 1 of the present utility model;

FIG. 3 is a schematic cross-sectional view of embodiment 2 of the present utility model;

fig. 4 is a schematic cross-sectional structure of embodiment 3 of the present utility model.

In the figure, 1, a pipeline; 11. a groove; 2. a seal ring; 21. a sealing body; 211. a through groove; 212. flaring; 22. a first abutting portion; 221. a first cavity; 222. a second cavity; 23. a second abutting portion; 3. a clamp; 31. an arc-shaped clamping block; 32. a receiving groove; 33. a reinforcing block; 34. a mounting plate; 4. a fastener; 41. a fastening bolt; 42. a fastening nut; 5. a reinforcing member; 51. a first reinforcing part; 52. a second reinforcing part; 6. a fixing ring; 61. and a limiting block.

Detailed Description

The present utility model will be described in further detail with reference to fig. 1-4.

The embodiment of the utility model discloses a fire-fighting steel pipe connecting structure.

Example 1:

the utility model provides a fire control steel pipe pipeline connection structure, refer to fig. 1, fig. 2, including be used for setting up sealing washer 2 between adjacent pipeline 1, along two clamp 3 that pipeline 1 axial symmetry set up and with the fastener 4 of two clamp 3 fastenings.

Referring to fig. 1, in this embodiment, the sealing ring 2 is made of ethylene propylene rubber, has elasticity, and has good low temperature resistance, and can maintain its own elasticity when used in colder areas. The seal ring 2 includes a seal body 21 and a first abutting portion 22, opposite side walls of the seal body 21 abut against end surfaces of the adjacent two pipes 1, respectively, the first abutting portion 22 is provided on an outer peripheral wall of the seal body 21, a surface of the first abutting portion 22, which is close to the pipe 1, abuts against an outer peripheral wall of the adjacent pipe 1, and in an embodiment, the seal body 21 and the first abutting portion 22 are integrally formed.

Referring to fig. 1, a first cavity 221 is formed in the middle of the first abutting portion 22, two ends of the first cavity 221 are respectively provided with a second cavity 222 in an extending manner, the second cavity 222 is disposed towards two end faces close to the first abutting portion 22, in this embodiment, the cross section of the second cavity 222 is arc-shaped, and the second cavity 222 is disposed towards the sealing body 21. The inner peripheral wall of the sealing body 21 is provided with a through groove 211 communicated with the first cavity 221, and the inner peripheral wall of the sealing body 21 is provided with a flaring 212, the flaring 212 is communicated with the channel, and the area of the flaring 212 in the cross section gradually increases from the direction close to the channel to the direction far from the channel.

Referring to fig. 1 and 2, in this embodiment, two clips 3 are arranged in a semicircular shape, two edges of each clip 3 are respectively provided with an arc-shaped clamping block 31, and a groove 11 for clamping the arc-shaped clamping blocks 31 is formed in the peripheral wall of the pipeline 1. In this embodiment, the clip 3 is made of a rigid material, and particularly, a material such as ductile cast iron or cast steel may be selected, and the arc-shaped clamping block 31 on the clip 3 is clamped in the annular groove 11, so as to reduce a certain deflection angle and displacement between the pipeline 1 and the clip 3.

Referring to fig. 1, the inner peripheral wall of the clip 3 is provided with a receiving groove 32 in which the first abutting portion 22 is received, and the inner peripheral wall of the clip 3 located in the receiving groove 32 abuts against the first abutting portion 22. And the clamp 3 is provided with a reinforcing block 33 away from the outer peripheral wall of the first abutting portion 22 in a protruding manner, and the reinforcing block 33 is disposed above the first cavity 221 and around the outer peripheral wall of the clamp 3.

Referring to fig. 2, the peripheral walls of the clips 3 adjacent to each other are each provided with a mounting plate 34 in a protruding manner, and in this embodiment, the mounting plates 34 and the clips 3 are integrally formed. The fastening piece 4 includes a fastening bolt 41 threaded through the mounting plates 34 close to each other and a fastening nut 42 screwed to the fastening bolt 41, in this embodiment, the fastening bolt 41 is a square bolt with a square neck, so that the possibility of slipping of the fastening nut 42 in the screwing process can be reduced, and the fastening nut 42 is a washer-type nut, so that the contact area between the fastening nut 42 and the mounting plates 34 can be increased, and the fastening effect can be enhanced.

The implementation principle of the fire-fighting steel pipe pipeline connection structure provided by the embodiment of the utility model is as follows: when no water is introduced into the pipe 1, a channel is formed in the sealing body 21, and the first and second cavities 221 and 222 are formed in the first abutting portion 22, so that a certain expansion space is provided for the sealing body 21 and the first abutting portion 22 after being extruded by the pipe 1 or the clamp 3, thereby reducing the possibility of deformation after being pressed.

After the water is introduced into the pipeline 1, the water flow in the pipeline 1 enters the first cavity 221 and the second cavity 222 through the through groove 211, so that the acting force is applied to the inner walls of the through groove 211, the first cavity 221 and the second cavity 222, namely the acting force is applied to the sealing body 21 and the first abutting part 22, so that the sealing body 21 and the first abutting part 22 are tightly abutted against the end face and the peripheral wall of the pipeline 1, and when the water flow pressure in the pipeline 1 is larger, the sealing performance is better, and the sealing effect of the sealing ring 2 on the pipeline 1 is further improved.

Example 2:

referring to fig. 3, the difference from embodiment 1 is that, in order to enhance the rigidity strength to the seal ring 2, the seal ring 2 is embedded with a reinforcing member 5, and in this embodiment, the reinforcing member 5 is made of steel material, and the reinforcing members 5 are provided in two and symmetrically arranged in the radial direction of the seal ring 2. The reinforcement 5 includes a first reinforcement portion 51 and a second reinforcement portion 52, the first reinforcement portion 51 and the second reinforcement portion 52 are integrally formed, and an L-shaped portion is provided between the first reinforcement portion 51 and the second reinforcement portion 52. The first reinforcing portion 51 is fitted into the sealing body 21, the first reinforcing portion 51 is provided near an end face of the pipe 1, the second reinforcing portion 52 is fitted into the first abutting portion 22, and the second reinforcing portion is provided near an outer peripheral wall of the pipe 1.

Example 3:

referring to fig. 4, the difference from embodiment 1 is that the sealing body 21 extends into the pipe 1, the sealing ring 2 further includes a second abutting portion 23, two second abutting portions 23 are provided and are respectively provided on two opposite side walls of the sealing body 21, in this embodiment, the second abutting portion 23 is fixedly connected coaxially with the sealing body 21, and the second abutting portion 23 abuts against the inner peripheral wall of the pipe 1. Annular slots for inserting the end face of the pipeline 1 are formed among the sealing body 21, the first abutting part 22 and the second abutting part 23, so that the contact area with the pipeline 1 is further increased, and the sealing performance is improved.

Referring to fig. 4, further, in order to reduce the water flowing into the pipe 1, the water pressure applies a force to the second abutting portion 23 so that the second abutting portion 23 may deform, in order to reduce the possibility of deformation of the second abutting portion 23, the inner peripheral walls of the adjacent pipes 1 are all provided with fixing rings 6, the two fixing rings 6 are respectively abutted against the end surfaces of the second abutting portion 23, which are far away from each other, and one end of the fixing ring 6, which is far away from the pipe 1, is convexly provided with a limiting block 61, and the limiting block 61 is abutted against the surface of the second abutting portion 23, which is far away from the pipe 1.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a fire control steel pipe pipeline connection structure, includes sealing washer (2) that are used for setting up between adjacent pipeline (1), along two clamp (3) of pipeline (1) axial symmetry setting and fastener (4) with two clamp (3) fastening, two clamp (3) all are the semicircle form setting, sealing washer (2) have elasticity; the method is characterized in that: the sealing ring (2) comprises a sealing body (21) which is abutted against the end face of the pipeline (1) and a first abutting part (22) which is arranged on the sealing body (21), wherein the first abutting part (22) is abutted against the outer peripheral wall of the pipeline (1), a through groove (211) is formed in the inner peripheral wall of the sealing body (21), and a first cavity (221) which is communicated with the through groove (211) is formed in the first abutting part (22); the inner peripheral wall butt of clamp (3) is in first butt portion (22), both edges of clamp (3) are around being equipped with arc fixture block (31), the periphery wall of pipeline (1) is around being equipped with slot (11) that supply arc fixture block (31) to block.

2. A fire fighting steel pipe connection structure according to claim 1, characterized in that: two ends of the first cavity (221) are respectively provided with a second cavity (222) in an extending way towards two end surfaces close to the first abutting part (22).

3. A fire fighting steel pipe connection structure according to claim 2, characterized in that: the second cavities (222) are all arc-shaped, and the second cavities (222) are arranged far away from the sealing body (21).

4. A fire fighting steel pipe connection according to claim 3, characterized in that: the clamp (3) is provided with a reinforcing block (33) in a protruding manner away from the outer peripheral wall of the first abutting portion (22).

5. A fire fighting steel pipe connection structure according to claim 1, characterized in that: the inner peripheral wall of the sealing body (21) is provided with a flaring (212) communicated with the through groove (211).

6. A fire fighting steel pipe connection structure according to claim 1, characterized in that: the sealing ring (2) is embedded with a reinforcing piece (5).

7. The fire steel pipe connection structure according to claim 6, wherein: the reinforcement (5) comprises a first reinforcement part (51) embedded in the sealing body (21) and a second reinforcement part (52) embedded in the first abutting part (22), the first reinforcement part (51) and the second reinforcement part (52) are close to the pipeline (1), and an L-shaped arrangement is formed between the first reinforcement part (51) and the second reinforcement part (52).

8. A fire fighting steel pipe connection structure according to claim 1, characterized in that: the sealing body (21) extends into the pipeline (1), and the sealing ring (2) further comprises second abutting parts (23) arranged on two opposite side walls of the sealing body (21), wherein the second abutting parts (23) are abutted against the inner peripheral wall of the pipeline (1).

9. The fire steel pipe connection structure according to claim 8, wherein: the inner peripheral wall of the pipeline (1) is wound with a fixed ring (6), and the fixed ring (6) is abutted to the second abutting part (23).

10. The fire-fighting steel pipe connection structure according to claim 9, wherein: the fixed ring (6) is convexly provided with a limiting block (61), and the limiting block (61) is abutted to the surface, far away from the pipeline (1), of the second abutting part (23).