CN210623855U - Fire-fighting pipeline connecting structure and fire-fighting water supply system - Google Patents
Fire-fighting pipeline connecting structure and fire-fighting water supply system Download PDFInfo
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- CN210623855U CN210623855U CN201921531374.0U CN201921531374U CN210623855U CN 210623855 U CN210623855 U CN 210623855U CN 201921531374 U CN201921531374 U CN 201921531374U CN 210623855 U CN210623855 U CN 210623855U
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- connection structure
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Abstract
The utility model provides a fire control pipeline connection structure and fire control water supply system belongs to the fire control technology field, and fire control pipeline connection structure includes: the connector comprises a first interface, a second interface, an annular sleeve, two compression rings and a fastener. The first interface is provided with a mounting flange; one end of the second interface is arranged in the first interface in a penetrating way, and the second interface is in limit connection with the first interface along the axial direction of the first interface; the annular sleeve is sleeved on the periphery of the first interface; the two compression rings and the annular sleeve are coaxially arranged and are respectively positioned at two sides of the annular sleeve, and one side of each compression ring, which is close to the annular sleeve, is provided with a driving surface for abutting and extruding the annular sleeve to be compressed on the first interface; one end of the fastener penetrates through the two compression rings along the axial direction of the first connector, and the two compression rings are fixed on the mounting flange of the first connector. The fire-fighting water supply system adopts the fire-fighting pipeline connecting structure. The utility model provides a fire control pipeline connection structure and fire control water supply system have improved the leakproofness between first interface and the second interface.
Description
Technical Field
The utility model belongs to the technical field of the fire control, more specifically say, relate to a fire control pipeline connection structure and adopt this fire control pipeline connection structure's fire control water supply system.
Background
In the construction process of the building industry, temporary fire-fighting water supply systems are required to be equipped on the site, and fire-fighting pipelines in the fire-fighting water supply systems are fixed and sealed by adopting sealing gaskets and welded connection structures. In order to further improve the water delivery efficiency, the pressure in the fire fighting pipeline needs to be continuously increased to achieve the purpose of quickly extinguishing fire, which puts higher requirements on the sealing performance of the fire fighting pipeline. The connection structure of the fire fighting pipeline adopted at present is only suitable for pipelines with medium and low pressure, and when the water pressure in the fire fighting pipeline is higher, the connection part of the existing fire fighting pipeline is subjected to expansion force along the radial direction of the pipeline, so that water leakage and air leakage are easily caused, and the normal work under a high water pressure state cannot be realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire pipeline connection structure aims at solving the poor problem of leakproofness under the high water pressure state of current fire pipeline connection structure.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a fire fighting pipe connection structure, including:
the first interface is provided with a mounting flange;
one end of the second interface is arranged in the first interface in a penetrating mode, and the second interface is in limit connection with the first interface along the axial direction of the first interface;
the annular sleeve is sleeved on the periphery of the first interface;
the two compression rings are coaxially arranged with the annular sleeve and are respectively positioned on two sides of the annular sleeve, and one sides of the two compression rings, which are close to the annular sleeve, are provided with driving surfaces for abutting against and extruding the annular sleeve to compress the annular sleeve on the first interface; and
a fastener, one end of which penetrates through the two compression rings along the axial direction of the first interface to fix the two compression rings on the mounting flange, wherein the two compression rings have the freedom degree of relative movement along the axial direction of the first interface;
the first interface extrudes the annular sleeve to be pressed on the first interface by means of the compression ring, and the first interface and the second interface are radially pressed and fixed along the second interface.
As another embodiment of the application, the driving surface is an annular inclined surface, and the periphery of the annular sleeve is provided with a driven inclined surface in sliding fit with the driving surface.
As another embodiment of the present application, the annular sleeve is an elastic member.
As another embodiment of the application, two compression rings are symmetrically arranged on two sides of the annular sleeve.
As another embodiment of the application, the number of the fasteners is multiple, and the fasteners are uniformly arranged along the circumferential direction of the compression ring.
As another embodiment of this application, the open end of first interface is equipped with annular sealed the pad, the stopper is installed to the one end of fastener, the stopper supports and leans on sealed lateral surface that fills up, be used for with sealed pad compresses tightly first interface with between the second interface.
As another embodiment of the present application, the fastener includes: a bolt and a nut; the limiting block is fixed at one end, far away from the bolt, of the bolt in threaded connection with the nut.
As another embodiment of the application, the limiting block is connected with the bolt in a sliding mode.
As another embodiment of the present application, a limit snap ring is disposed between the first interface and the second interface.
The utility model provides a fire pipeline connection structure's beneficial effect lies in: compared with the prior art, the utility model discloses fire control pipeline connection structure fixes the second interface in first interface, and the annular sheath is installed to the periphery of first interface, utilizes the fastener to fix two clamp rings that are located the annular sheath both sides on the mounting flange of first interface, utilizes the driving surface extrusion annular sheath on the clamp ring to compress tightly on first interface at clamp ring locking in-process, and then realizes that the radial of first interface and second interface compresses tightly fixedly, has improved the leakproofness between first interface and the second interface.
Another object of the present invention is to provide a fire-fighting water supply system, which comprises any one of the above fire-fighting pipeline connecting structures.
The utility model provides a fire control water supply system's beneficial effect lies in: compared with the prior art, the utility model discloses fire control pipeline connection structure among the fire control water supply system fixes the second interface in first interface, the annular sheath is installed to the periphery of first interface, utilize the fastener to fix two clamp rings that are located the annular sheath both sides on the mounting flange of first interface, utilize the driving surface extrusion annular sheath on the clamp ring to compress tightly on first interface at clamp ring locking in-process, and then realize that the radial of first interface and second interface compresses tightly fixedly, the leakproofness between first interface and the second interface has been improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a cross-sectional view of a fire fighting pipeline connection structure according to an embodiment of the present invention;
fig. 2 is a left side view of a fire fighting pipeline connection structure according to a first embodiment of the present invention;
fig. 3 is a cross-sectional view of a fire fighting pipeline connecting structure provided in the second embodiment of the present invention;
fig. 4 is a cross-sectional view of a fire fighting pipeline connection structure provided by a third embodiment of the present invention;
fig. 5 is a left side view of the fire fighting pipeline connecting structure provided by the third embodiment of the present invention.
In the figure: 1. a first interface; 101. mounting grooves; 2. a second interface; 3. an annular sleeve; 4. a compression ring; 5. a fastener; 501. a bolt; 502. a nut; 6. installing a flange; 7. a drive face; 8. a gasket; 9. a limiting block; 901. a chute; 10. a limit snap ring.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2 together, the fire fighting pipeline connecting structure of the present invention will now be described. The fire-fighting pipeline connecting structure comprises a first connector 1, a second connector 2, an annular sleeve 3, two compression rings 4 and a fastener 5. The first interface 1 is provided with a mounting flange 6; one end of the second interface 2 is arranged in the first interface 1 in a penetrating way, and the second interface 2 is connected with the first interface 1 in a limiting way along the axial direction of the first interface 1; the annular sleeve 3 is sleeved on the periphery of the first interface 1; the two compression rings 4 are coaxially arranged with the annular sleeve 3 and are respectively positioned at two sides of the annular sleeve 3, and one side of each compression ring 4, which is close to the annular sleeve 3, is provided with a driving surface 7 which is used for abutting and extruding the annular sleeve 3 to be compressed on the first interface 1; one end of a fastener 5 penetrates through the two compression rings 4 along the axial direction of the first connector 1, the two compression rings 4 are fixed on a mounting flange 6 of the first connector 1, and the two compression rings 4 have the freedom degree of relative movement along the axial direction of the first connector 1; the first interface 1 is pressed on the first interface 1 by means of the pressing ring 4 to extrude the annular sleeve 3, so that the first interface and the second interface 2 are radially pressed and fixed along the second interface 2.
The utility model provides a fire-fighting pipeline connection structure, compared with the prior art, fix second interface 2 in first interface 1, annular cover 3 is installed to first interface 1's periphery, utilize fastener 5 to fix two clamp rings 4 that are located annular cover 3 both sides on first interface 1's mounting flange 6, utilize drive face 7 extrusion annular cover 3 on the clamp ring 4 to compress tightly on first interface 1 in clamp ring 4 locking process, and then realize that first interface 1 and second interface 2 radially compress tightly fixedly along second interface 2, the leakproofness between first interface 1 and the second interface 2 has been improved.
In this embodiment, the first interface 1 and the second interface 2 are connected by a thread, an internal thread and an external thread are respectively processed at the opening ends of the first interface 1 and the second interface 2, and the first interface 1 and the second interface 2 are fixedly connected by rotating the first interface 1 and/or the second interface 2. The first interface 1 and the second interface 2 are connected through screw threads, and the tightness between the first interface 1 and the second interface 2 is enhanced. The periphery of the inner diameter of the second connector 2 is provided with a chamfer, so that the resistance of water flow is reduced, and the impact of the water flow on the second connector 2 is reduced. The first interface 1 and the second interface 2 can also be directly installed in an interference fit manner, the first interface 1 and the second interface 2 do not need to be subjected to thread machining, and the first interface 1 and the second interface 2 are compressed by the compression ring 4. The acting force of the pressing ring 4 on the first connector 1 is inward along the radial direction of the first connector 1, the pressure of water flow in the pipeline on the second connector 2 is outward along the radial direction of the second connector 2, the first connector 1 and the second connector 2 are firmly connected through the two acting forces, and meanwhile, the first connector 1 and the second connector 2 are firmer along with the gradual increase of water pressure.
As a specific embodiment of the fire fighting pipeline connecting structure provided by the present invention, please refer to fig. 1 and 2, the driving surface 7 is an annular inclined surface, and the periphery of the annular sleeve 3 is provided with a driven inclined surface in sliding fit with the driving surface 7. A wedge-shaped structure is formed between the annular sleeve 3 and the compression ring 4, and the axial movement of the compression ring 4 along the first connector 1 is converted into the radial pressing of the annular sleeve 3 along the first connector 1 on the first connector 1. The driving surface 7 is an annular inclined surface, so that the processing is more convenient, the stress of the whole periphery of the annular sleeve 3 is more balanced, the situation that the first interface 1 and the second interface 2 are reduced in tightness and even the first interface 1 and the second interface 2 are locally deformed due to uneven stress of the annular sleeve 3 is avoided, and the installation of the first interface 1 and the second interface 2 is influenced. The periphery of the annular sleeve 3 is provided with a driven inclined surface in sliding fit with the driving surface 7, and the contact area of the driving surface 7 and the driven inclined surface is 2/3-3/4 of the area of the driving surface 7. The cross section profiles of the driving surface 7 and the driven inclined surface are straight lines, so that the connection structure between the annular sleeve 3 and the pressing ring 4 is more stable, and the force transmission between the annular sleeve 3 and the pressing ring 4 is facilitated. The included angle between the cross-sectional profile of the driving surface 7 and the axial direction of the compression ring 4 is an acute angle, and when the included angle is 30 degrees, the annular sleeve 3 has the best compression effect on the first connector 1. The mounting flange 6 is located at the periphery of the first connector 1, and the thickness direction of the mounting flange 6 is parallel to the axial direction of the first connector 1. The mounting flange 6 encloses with the outer side of the first port 1 a mounting space for accommodating the annular sleeve 3 and the clamping ring 4. The mounting flange 6 plays a supporting and limiting role for the compression ring 4 and the annular sleeve 3, the position of the annular sleeve 3 is limited at the periphery of the mounting positions of the first connector 1 and the second connector 2, and the pressure of the annular sleeve 3 on the first connector 1 can be directly transmitted to the contact surfaces of the first connector 1 and the second connector 2. The mounting flange 6 and the first interface 1 are welded and fixed, and the periphery of the mounting flange 6 is welded for ensuring the connection strength.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the annular sleeve 3 is an elastic member. The annular sleeve 3 can be made of elastic parts such as rubber or polyurethane. The periphery of the first connector 1 is provided with a mounting groove 101 for mounting the annular sleeve 3, and the width of the mounting groove 101 is larger than the thickness of the annular sleeve 3. Due to the elasticity of the annular sleeve 3 itself, the annular sleeve 3 can be mounted in the mounting groove 101 by means of an auxiliary tool. Because annular sleeve 3 pressurized can take place to warp, so can enough guarantee annular sleeve 3 respectively with clamp ring 4 and first interface 1 in close contact with after the pressurized, be favorable to the conduction of power, play the guard action to clamp ring 4 and first interface 1 again, prevent to take place rigid contact between annular sleeve 3 and clamp ring 4 and the first interface 1. Annular sleeve 3 can produce along the axial deformation of first interface 1 under the pressure effect of clamp ring 4, and after certain deflection took place for annular sleeve 3, mounting groove 101 played limiting displacement to annular sleeve 3, prevented that the deflection of annular sleeve 3 from surpassing the reasonable scope of self deflection.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, two clamp rings 4 are symmetrically disposed on two sides of the annular sleeve 3. Because the two compression rings 4 are symmetrically arranged on the two sides of the annular sleeve 3, the stress of the annular sleeve 3 is more balanced, the axial component forces applied to the annular sleeve 3 by the two compression rings 4 can be mutually offset, and the annular sleeve 3 is prevented from being relatively displaced or irregularly deformed along the axial direction, so that the annular sleeve 3 is prevented from being damaged. The clamp ring 4 close to the mounting flange 6 can be connected and fixed with the mounting flange 6 by welding or pins and other connection modes.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 2, the number of the fastening members 5 is plural, and the fastening members are uniformly arranged along the circumferential direction of the clamp ring 4. The number of the fasteners 5 is at least three, and can be determined according to the actual size of the pipeline, so that a good fastening effect can be achieved. The clamp ring 4 and the mounting flange 6 are correspondingly provided with a plurality of abdicating holes or mounting holes for the fasteners 5, so that operators can conveniently adjust the number and the positions of the fasteners 5 according to actual conditions. Because the fasteners 5 are uniformly arranged along the circumferential direction of the compression ring 4, the locking force applied to the compression ring 4 is more balanced.
As a specific implementation of the embodiment of the utility model, please refer to fig. 1 and fig. 2, the open end of first interface 1 is equipped with annular sealed pad 8, and stopper 9 is installed to the one end of fastener 5, and stopper 9 supports and leans on the lateral surface at sealed pad 8 for compress tightly sealed pad 8 between first interface 1 and second interface 2. The open end of the first port 1 is provided with a conical opening for receiving the sealing gasket 8. The cross-sectional shape of the gasket 8 is triangular. In the process that the fastening piece 5 locks the compression ring 4, the limiting block 9 is driven to move along the axial direction of the first interface 1, so that the sealing gasket 8 is compressed in the conical opening. The lateral surface of the sealing gasket 8 protrudes out of the opening end of the first interface 1, so that the limiting block 9 is in direct contact with the sealing surface.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the fastening member 5 includes: a bolt 501 and a nut 502; the limiting block 9 is fixed at one end of the bolt 501 far away from the threaded connection of the bolt 501 and the nut 502. The fastener 5 adopts a connecting structure of the bolt 501 and the nut 502, so that parts are easy to obtain, the cost is low, and the operation is simple. The nut 502 is a locknut, so that the pipe is prevented from vibrating at high frequency in the use process, and the bolt 501 and the nut 502 are prevented from loosening. The clamp ring 4 and the mounting flange 6 are correspondingly provided with the yielding hole of the bolt 501, the unilateral clearance between the yielding hole and the bolt 501 is kept below 0.5mm, and the clamp ring 4 is prevented from deviating relative to the annular sleeve 3 due to the overlarge clearance between the yielding hole and the bolt 501. This connection structure still has the auto-lock effect, and when annular sleeve 3 received hydraulic reverse effort, annular sleeve 3 can only drive two clamp rings 4 along linear motion, can't drive bolt 501 pivoting to reach the auto-lock effect. The limiting block 9 and the bolt 501 can be fixed by welding.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, the limiting block 9 is slidably connected to the bolt 501, and the limiting block 9 is correspondingly provided with a sliding groove 901 matched with the end of the bolt 501. The limiting block 9 is in a strip shape. The stopper 9 can slide along the direction of the sliding groove 901. The distance between the limiting block 9 and the sealing gasket 8 can be adjusted by sliding along the sliding groove 901 according to pipelines with different diameters, so that the pressing effect of the limiting block 9 on the sealing gasket 8 is optimal.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 4 and 5, the limiting block 9 is a flange, and the flange is correspondingly provided with a yielding hole through which the bolt 501 passes. Stopper 9 and second interface 2 sliding fit guarantee that stopper 9 can contact completely with the side of sealed 8 of filling up. The structure of stopper 9 adoption ring flange has effectively increased the area of contact between stopper 9 and the sealed pad 8, makes the atress of sealed pad 8 more even, is favorable to improving sealed effect of filling up 8.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, a limiting snap ring 10 is disposed between the first interface 1 and the second interface 2. The limiting snap ring 10 is a snap spring. The limiting clamping ring 10 is used for limiting the length of the second connector 2 inserted into the first connector 1, and is used for offsetting the axial acting force of the water flow acting on the second connector 2 in the water flow passing process. The first interface 1 and the second interface 2 are correspondingly provided with clamping grooves of limiting clamping rings 10.
The utility model also provides a fire control water supply system. Including foretell fire control pipeline connection structure.
Compared with the prior art, the utility model provides a fire control pipeline connection structure among fire control water supply system fixes second interface 2 in first interface 1, annular cover 3 is installed to first interface 1's periphery, utilize fastener 5 to fix two clamp rings 4 that are located 3 both sides of annular cover on first interface 1's mounting flange 6, drive face 7 extrusion annular cover 3 on utilizing clamp ring 4 to compress tightly on first interface 1 at clamp ring 4 locking in-process, and then realize that first interface 1 and second interface 2 radially compress tightly fixedly along second interface 2, the leakproofness between first interface 1 and the second interface 2 has been improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Fire control pipeline connection structure, its characterized in that includes:
the first interface is provided with a mounting flange;
one end of the second interface is arranged in the first interface in a penetrating mode, and the second interface is in limit connection with the first interface along the axial direction of the first interface;
the annular sleeve is sleeved on the periphery of the first interface;
the two compression rings are coaxially arranged with the annular sleeve and are respectively positioned on two sides of the annular sleeve, and one sides of the two compression rings, which are close to the annular sleeve, are provided with driving surfaces for abutting against and extruding the annular sleeve to compress the annular sleeve on the first interface; and
a fastener, one end of which penetrates through the two compression rings along the axial direction of the first interface to fix the two compression rings on the mounting flange, wherein the two compression rings have the freedom degree of relative movement along the axial direction of the first interface;
the first interface extrudes the annular sleeve to be pressed on the first interface by means of the compression ring, and the annular sleeve and the second interface are radially pressed and fixed along the second interface.
2. A fire fighting pipe connection as defined in claim 1, wherein said driving surface is an annular inclined surface, and the outer periphery of said annular sleeve is provided with a driven inclined surface slidably engaged with said driving surface.
3. A fire fighting pipe connection structure as recited in claim 1, wherein said annular sleeve is an elastic member.
4. The fire fighting pipe connection structure of claim 1, wherein two of said compression rings are symmetrically disposed on both sides of said annular sleeve.
5. The fire fighting pipe connection structure of claim 1, wherein the number of the fastening members is plural and is uniformly arranged in the circumferential direction of the clamp ring.
6. A fire fighting pipeline connecting structure as defined in claim 1, wherein an annular sealing gasket is provided at an opening end of the first port, and a stopper is mounted at one end of the fastening member and abuts against an outer side surface of the sealing gasket for pressing the sealing gasket between the first port and the second port.
7. The fire fighting pipe connection structure of claim 6, wherein the fastener comprises: a bolt and a nut; the limiting block is fixed at one end, far away from the bolt, of the bolt in threaded connection with the nut.
8. A fire-fighting pipeline connecting structure as defined in claim 7, wherein the limiting block is slidably connected to the bolt, and a sliding groove engaged with an end of the bolt is correspondingly formed on the limiting block.
9. The fire fighting pipe connection structure of claim 1, wherein a retaining snap ring is provided between the first port and the second port.
10. Fire fighting water supply system, characterized in that it comprises a fire fighting pipe connection according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921531374.0U CN210623855U (en) | 2019-09-12 | 2019-09-12 | Fire-fighting pipeline connecting structure and fire-fighting water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921531374.0U CN210623855U (en) | 2019-09-12 | 2019-09-12 | Fire-fighting pipeline connecting structure and fire-fighting water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623855U true CN210623855U (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921531374.0U Active CN210623855U (en) | 2019-09-12 | 2019-09-12 | Fire-fighting pipeline connecting structure and fire-fighting water supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623855U (en) |
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2019
- 2019-09-12 CN CN201921531374.0U patent/CN210623855U/en active Active
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