CN110360398B

CN110360398B - Fire-fighting interface

Info

Publication number: CN110360398B
Application number: CN201910656085.1A
Authority: CN
Inventors: 朱金强; 彭圆; 钱文娟
Original assignee: Yuhuan Guanhong Aluminum Co ltd
Current assignee: Yuhuan Guanhong Aluminum Co.,Ltd.
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2021-07-09
Anticipated expiration: 2039-07-19
Also published as: CN110360398A

Abstract

The invention belongs to the technical field of fire fighting equipment, and particularly relates to a fire fighting interface; comprises an interface body; the connector body comprises a fixed connector and a movable connector, the fixed connector is arranged on the fire hydrant, and the movable connector is connected to the fire fighting pipe through a sliding pipe; the fixed joint is provided with a fixed chuck; the movable connector is provided with a sliding groove, and a movable chuck is connected in the sliding groove through a spiral spring; a conical pipe is inserted in the movable interface, a sliding pipe is sealed in the conical pipe through a sliding sealing ring, and the conical pipe is formed by splicing a plurality of elastic arc plates; the end part of the conical pipe is provided with a sealing check ring, the outer wall of the conical pipe is provided with a sliding rod, the top end part of the sliding rod is provided with an elastic extrusion block, and the elastic extrusion block is positioned at a ring of the spiral spring; can effectively reduce because of fixing when fixed interface on the fire hydrant takes place the rust ization, lead to the movable joint to be difficult to block into fixed interface, and then influence the high-speed joint cooperation of fire-fighting pipeline and fire hydrant.

Description

Fire-fighting interface

Technical Field

The invention belongs to the technical field of fire fighting equipment, and particularly relates to a fire fighting interface.

Background

A large amount of water is needed in fire rescue, and the water source is conveyed when the distance between the water source and a fire point is far; during the water source conveying process, water hoses with large calibers need to be connected with each other to form a long water hose, and two adjacent water hoses are connected through a fire-fighting connector.

The fire-fighting interface is mainly used for connecting a water hose, a fire hydrant, a water gun and the like to carry out fire-fighting work of conveying water or mixed liquid; the main types of the fire-fighting interface products used in China at present are divided into an inner buckle type, a clamping type and a thread type, and three different types are connected and transition special-shaped interfaces.

The existing large-diameter fire-fighting interface is more than 100mm, when fire fighting water supply is carried out, the fixed interface fixed on the fire hydrant is corroded by external rainwater or rusted due to long-time use, and therefore the fire-fighting interface is easy to clamp and is not firm and difficult to clamp quickly when being connected; meanwhile, under the impact force of water pressure, the leakage phenomenon is easy to occur due to poor sealing performance.

Disclosure of Invention

In order to make up for the defects of the prior art, the fire-fighting interface provided by the invention is mainly used for solving the problems that the existing fixed interface fixed on a fire hydrant is rusted due to external rainwater erosion or long-time use, so that the fire-fighting interface is easy to clamp and is not firm and difficult to clamp quickly when being connected; meanwhile, under the impact force of water pressure, the leakage phenomenon is easy to occur due to poor sealing performance.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a fire-fighting interface, which comprises an interface body; the fire hydrant comprises a fire hydrant body and a fire-fighting pipe, wherein the fire-fighting pipe is connected with the fire-fighting pipe through a sliding pipe; a fixed chuck is arranged on the fixed joint; the movable connector is provided with a sliding groove, and a movable clamp is connected in the sliding groove through a spiral spring; a conical pipe is inserted in the movable interface, a sliding pipe is sealed in the conical pipe through a sliding sealing ring, and the conical pipe is formed by splicing a plurality of elastic arc plates; the end part of the conical pipe is provided with a sealing check ring, the outer wall of the conical pipe is provided with a sliding rod, the top end part of the sliding rod is provided with an elastic extrusion block, and the elastic extrusion block is positioned at a ring of the spiral spring; when the device works, the arranged movable clamping head is in a contraction state initially; when the movable interface card is required to be connected to the fixed connector, a user pulls the sliding pipe to the outside of the movable interface, the sliding pipe slides in the tapered pipe through the sliding sealing ring, the sliding sealing ring after sliding can extrude the tapered pipe formed by splicing the elastic arc plates, the tapered end part of the tapered pipe is expanded, the expanded tapered pipe can enable the sliding rod to slide towards two ends, the elastic extrusion block is further driven to extrude and clamp the elastic extrusion block to the ring of the spiral spring, the spiral spring after extrusion can drive the movable clamp head to extend out, the movable interface is further rotated, the movable clamp head is clamped to the fixed clamp head, and the fixed interface and the movable interface are further connected; the fixed chuck and the movable chuck are matched for use, so that the phenomenon that the movable interface is difficult to clamp into the fixed interface due to the corrosion of external rainwater or the rust phenomenon caused by long-time use of the fixed interface fixed on the fire hydrant can be effectively reduced, and the quick connection and matching of a fire fighting pipeline and the fire hydrant are further influenced; the sliding sealing ring and the sealing retainer ring are matched, so that the water leakage phenomenon when the fixed interface is connected with the movable interface can be effectively reduced.

Preferably, the outer wall of the sliding seal ring is pressed with a corrugated elastic layer, and wave crests and wave troughs of the corrugated elastic layer are annularly arranged on the sliding seal ring; the inside of the sliding seal ring is provided with an extrusion spring, and the top end of the extrusion spring is in contact with the corrugated elastic layer; when the sliding pipe is in work, when the sliding pipe drives the sliding sealing ring to slide in the conical pipe, the arranged corrugated elastic layer is matched with the extrusion spring, so that the sliding sealing effect of the sliding sealing ring in the conical pipe can be increased, and meanwhile, the corrugated elastic layer can scrape out particles or gravels adhered to the inner wall of the conical pipe; the counterforce of the extrusion spring can accelerate the expansion capacity of the conical pipe and can support the sliding sealing ring.

Preferably, the outer wall of the sliding pipe is sleeved with a cavity adsorption ring, and an arc-shaped pressing plate is arranged in the cavity adsorption ring; the cavity adsorption ring is sleeved in the sliding seal ring, and the outer wall of the cavity adsorption ring is contacted with the extrusion spring; the during operation, after extrusion spring is extruded, the cavity that sets up adsorbs the ring and can produce the extrusion under extrusion spring's extrusion force, and then makes the interior gas of cavity absorption ring can promote the arc pressfitting board pressfitting to the outer wall of sliding tube on, and then makes the inside vacuum state that produces of arc pressfitting board, and then adsorbs the sliding seal circle on the sliding tube, prevents that the sliding tube when sliding, and the sliding seal circle produces the phenomenon of relative slip on the sliding tube, and then influences the sealed effect of sliding seal circle.

Preferably, a squeezing cavity is formed in the conical tube, and a squeezing spring is placed in the squeezing cavity; the inner cavity wall of the conical tube is provided with a corrugated sealing layer, and the wave troughs and the wave crests of the corrugated sealing layer are aligned with the wave troughs and the wave crests of the corrugated elastic layer; when the sliding sealing ring slides in the sliding conical tube during working, the wave crests and the wave troughs arranged on the outer wall of the sliding sealing ring slide relative to the wave crests and the wave troughs of the corrugated sealing layer arranged in the conical tube, so that the sliding sealing effect of the sliding sealing ring and the inner wall of the conical tube is improved; meanwhile, the arranged corrugated sealing layer is clamped with the corrugations of the corrugated elastic layer, so that the impact force of high-pressure water flow in the fire hydrant can be prevented, and the sliding sealing ring can slide in the conical pipe; the slip of slip sealing washer can make the extrusion chamber produce extrusion deformation, simultaneously under the effect of extrusion spring, can increase the expansion effect of conical duct, the effect that the extrusion of increase conical duct resumes simultaneously.

Preferably, one end of the conical tube is arranged at the end part of the movable connector through the sealing block, and the other end of the conical tube is arranged at the other end part of the movable connector in a sliding manner through the sliding pressure spring; the side wall of the sliding pressure spring is tightly attached to the inner side wall of the sealing retainer ring; the during operation, when the conical duct received the extrusion expansion, the slip pressure spring of setting can outwards compress under the expanding force effect of conical duct, and then can extrude the sealing collar of lateral wall contact, and then makes sealing collar can closely laminate in fixed interface's lateral wall department, effectively prevents that the phenomenon of revealing takes place in the junction of activity interface and fixed interface to the water in the fire hydrant, and then influences the sealed effect of fire control interface.

Preferably, an air guide cavity is formed in the sliding rod and is communicated with the extrusion cavity; the outer wall of the elastic extrusion block is provided with a corrugated convex layer, an extrusion torsion spring is inserted in the elastic extrusion block, the extrusion torsion spring is of a cavity structure, and the end part of the extrusion torsion spring of the cavity structure is positioned in the air guide cavity; the outer wall of the spiral spring is provided with a corrugated convex structure; when the movable clamping head works, when the sliding rod drives the elastic extrusion block to slide upwards and extrude the elastic extrusion block into the spiral spring, gas in the extrusion cavity can enter the gas guide cavity, so that the end part of the sliding rod expands, the extrusion effect of the elastic extrusion block on the spiral spring is further increased, and the clamping effect of the movable clamping head is increased; the corrugated convex layer is matched with the side wall of the spiral spring, when the elastic extrusion block slides into a spiral ring of the spiral spring, the corrugated convex layer can be clamped into the corrugated convex arranged on the side wall of the spiral spring, so that the contact friction force of the elastic extrusion block and the spiral spring is increased, the phenomenon that the elastic extrusion block is separated from the inner part of the spiral spring due to the impact force of water flow is prevented, and the stable clamping effect of the movable clamping head and the fixed clamping head is further influenced; the gas in the gas guide cavity can extrude the torsion spring to expand, and then the corrugated contact clamping effect of the corrugated convex layer and the outer wall of the spiral spring is increased.

The invention has the following beneficial effects:

1. according to the invention, through the matching use of the fixed chuck and the movable chuck, the phenomenon that the movable interface is difficult to clamp into the fixed interface due to the corrosion of external rainwater or the rust phenomenon caused by long-time use of the fixed interface fixed on the fire hydrant can be effectively reduced, so that the quick connection and matching of the fire fighting pipeline and the fire hydrant are influenced; the sliding sealing ring and the sealing retainer ring are matched, so that the water leakage phenomenon when the fixed interface is connected with the movable interface can be effectively reduced.

2. According to the invention, through the matching of the corrugated convex layer and the side wall of the spiral spring, when the elastic extrusion block slides into the spiral ring of the spiral spring, the corrugated convex layer can be clamped into the corrugated bulge arranged on the side wall of the spiral spring, so that the contact friction force of the elastic extrusion block and the spiral spring is increased, the phenomenon that the elastic extrusion block is separated from the inner part of the spiral spring due to the impact force of water flow is prevented, and the stable clamping effect of the movable clamping head and the fixed clamping head is further influenced.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 in accordance with the present invention;

FIG. 4 is an enlarged view of a portion of the invention at B in FIG. 2;

in the figure: the connector comprises a connector body 1, a fixed connector 11, a fixed chuck 111, a movable connector 12, a sliding groove 121, a spiral spring 2, a movable chuck 3, a tapered tube 4, an extrusion cavity 41, a corrugated sealing layer 42, a sliding sealing ring 5, a corrugated elastic layer 51, an extrusion spring 52, a cavity adsorption ring 53, an arc-shaped laminated plate 54, a sliding tube 6, a sealing retainer ring 7, a sliding rod 8, an air guide cavity 81, an elastic extrusion block 9, a corrugated bulge layer 91, an extrusion torsion spring 92 and a sliding compression spring 10.

Detailed Description

A fire service interface according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.

As shown in fig. 1, 2 and 3, the fire fighting interface according to the present invention comprises an interface body 1; the fire hydrant connector comprises a connector body 1 and a fire hydrant, wherein the connector body 1 comprises a fixed connector 11 and a movable connector 12, the fixed connector 11 is arranged on the fire hydrant, and the movable connector 12 is connected to a fire fighting pipe through a sliding pipe 6; a fixed chuck 111 is arranged on the fixed joint; a sliding groove 121 is formed in the movable connector 12, and a movable chuck 3 is connected to the inside of the sliding groove 121 through a spiral spring 2; the movable connector 12 is internally inserted with a conical tube 4, the conical tube 4 is internally sealed with a sliding tube 6 through a sliding seal ring 5, and the conical tube 4 is formed by splicing a plurality of elastic arc plates; a sealing retainer ring 7 is arranged at the end part of the conical pipe 4, a sliding rod 8 is arranged on the outer wall of the conical pipe 4, an elastic extrusion block 9 is arranged at the top end part of the sliding rod 8, and the elastic extrusion block 9 is positioned at the position of the ring of the spiral spring 2; when the device works, the arranged movable clamping head 3 is in a contraction state initially; when the movable connector 12 needs to be clamped to the fixed connector, a user pulls the sliding tube 6 to the outside of the movable connector 12, the sliding tube 6 slides in the tapered tube 4 through the sliding seal ring 5, the sliding seal ring 5 after sliding can extrude the tapered tube 4 formed by splicing a plurality of elastic arc plates, the tapered end part of the tapered tube 4 is expanded, the expanded tapered tube 4 can enable the sliding rod 8 to slide towards two ends, the elastic extrusion block 9 is driven to extrude and clamp the elastic extrusion block to the ring of the spiral spring 2, the spiral spring 2 after extrusion can drive the movable clamp 3 to stretch out, the movable connector is further rotated, the movable clamp 3 is clamped to the fixed clamp 111, and the fixed connector 11 and the movable connector 12 are further connected; by the matching use of the fixed chuck 111 and the movable chuck 3, the phenomenon that the movable interface 12 is difficult to be clamped into the fixed interface 11 due to the corrosion of external rainwater or the rust phenomenon caused by long-time use of the fixed interface 11 fixed on the fire hydrant can be effectively reduced, and the quick connection and matching of a fire fighting pipeline and the fire hydrant are further influenced; the cooperation of the sliding seal ring 5 and the sealing retainer ring 7 that set up simultaneously can effectively reduce the phenomenon of leaking when fixed interface 11 and movable interface 12 connect.

As shown in fig. 2 and 3, a corrugated elastic layer 51 is pressed on the outer wall of the sliding seal ring 5, and the wave crests and the wave troughs of the corrugated elastic layer 51 are annularly arranged on the sliding seal ring 5; the inside of the sliding seal ring 5 is provided with an extrusion spring 52, and the top end of the extrusion spring 52 is contacted with the corrugated elastic layer 51; when the sliding pipe 6 drives the sliding sealing ring 5 to slide in the conical pipe 4 during work, the arranged corrugated elastic layer 51 is matched with the extrusion spring 52, so that the sliding sealing effect of the sliding sealing ring 5 in the conical pipe 4 can be improved, and meanwhile, the corrugated elastic layer 51 can scrape out particles or gravels adhered to the inner wall of the conical pipe 4; the reaction force of the pressing spring 52 not only accelerates the expansion capability of the tapered tube 4, but also supports the sliding seal ring 5.

As shown in fig. 2 and 3, a cavity adsorption ring 53 is sleeved on the outer wall of the sliding pipe 6, and an arc-shaped pressing plate 54 is arranged in the cavity adsorption ring 53; the cavity absorption ring 53 is sleeved in the sliding seal ring 5, and the outer wall of the cavity absorption ring 53 is contacted with the extrusion spring 52; during operation, after extrusion spring 52 is extruded, the cavity that sets up adsorbs ring 53 can produce the extrusion under extrusion spring 52's extrusion force, and then make cavity adsorb the interior gas of ring 53 can promote arc pressfitting board 54 pressfitting to the outer wall of slide tube 6, and then make the inside state that produces compression vacuum of arc pressfitting board 54, and then adsorb sliding seal 5 on slide tube 6, prevent that slide tube 6 from when sliding, sliding seal 5 produces the phenomenon of relative slip on slide tube 6, and then influence sliding seal 5's sealed effect.

As shown in fig. 2 and 3, a squeezing cavity 41 is formed inside the conical tube 4, and a squeezing spring is placed in the squeezing cavity 41; the inner cavity wall of the conical tube 4 is provided with a corrugated sealing layer 42, and the wave troughs and wave crests of the corrugated sealing layer 42 are aligned with the wave troughs and wave crests of the corrugated elastic layer 51; when the sliding sealing ring device works, when the sliding sealing ring 5 slides in the sliding conical tube 4, the wave crests and the wave troughs arranged on the outer wall of the sliding sealing ring 5 can slide relative to the wave crests and the wave troughs of the corrugated sealing layer 42 arranged in the conical tube 4, so that the sliding sealing effect of the sliding sealing ring 5 and the inner wall of the conical tube 4 is improved; the ripple sealing layer 42 and the ripple elastic layer 51 are clamped, so that the sliding sealing ring 5 can be prevented from sliding in the tapered pipe 4 due to the impact force of high-pressure water flow in the fire hydrant; the sliding of the sliding seal ring 5 can cause the extrusion chamber 41 to generate extrusion deformation, and simultaneously, under the action of the extrusion spring, the expansion effect of the conical tube 4 can be increased, and the extrusion recovery effect of the conical tube 4 can be increased.

As shown in fig. 2, one end of the conical tube 4 is arranged at the end of the movable connector 12 through a sealing block, and the other end of the conical tube 4 is arranged at the other end of the movable connector 12 through a sliding compression spring 10 in a sliding manner; the side wall of the sliding pressure spring 10 is tightly attached to the inner side wall of the sealing retainer ring 7; the during operation, when conical tube 4 received the extrusion expansion, the slip pressure spring 10 that sets up can outwards compress under conical tube 4's expansion force effect, and then can extrude the sealing collar 7 of lateral wall contact, and then makes sealing collar 7 can closely laminate in fixed interface 11's lateral wall department, effectively prevents that the phenomenon of revealing takes place in movable joint 12 and fixed interface 11's junction of water in the fire hydrant, and then influences the sealed effect of fire control interface.

As shown in fig. 2 and 4, an air guide cavity 81 is formed inside the sliding rod 8, and the air guide cavity 81 is communicated with the extrusion cavity 41; the outer wall of the elastic extrusion block 9 is provided with a corrugated convex layer 91, an extrusion torsion spring 92 is inserted in the elastic extrusion block 9, the extrusion torsion spring 92 is of a cavity structure, and the end part of the extrusion torsion spring 92 of the cavity structure is positioned in the air guide cavity 81; the outer wall of the spiral spring 2 is provided with a corrugated convex structure; when the device works, when the sliding rod 8 drives the elastic extrusion block 9 to slide upwards and extrude the elastic extrusion block into the spiral spring 2, gas in the extrusion cavity 41 enters the gas guide cavity 81, so that the end part of the sliding rod 8 expands, the extrusion effect of the elastic extrusion block 9 on the spiral spring 2 is further increased, and the clamping effect of the movable clamping head 3 is increased; the corrugated convex layer 91 is matched with the side wall of the spiral spring 2, when the elastic extrusion block 9 slides into the spiral ring of the spiral spring 2, the corrugated convex layer 91 can be clamped into the corrugated convex arranged on the side wall of the spiral spring 2, so that the contact friction force of the elastic extrusion block 9 and the spiral spring 2 is increased, the phenomenon that the elastic extrusion block 9 is separated from the inner part of the spiral spring 2 due to the impact force of water flow is prevented, and the stable clamping effect of the movable clamping head 3 and the fixed clamping head 111 is further influenced; the gas in the air guide chamber 81 expands the compression torsion spring 92, thereby increasing the effect of the corrugated convex layer 91 engaging with the outer wall of the coil spring 2.

The specific working process is as follows:

when the device works, the arranged movable clamping head 3 is in a contraction state initially; when needs are with activity interface 12 joint to fixed joint, the user is to activity interface's outside pulling slip tube 6, and then slip tube 6 slides in conical tube 4 through slip seal circle 5, slip seal circle 5 after the slip can extrude conical tube 4 by the concatenation formation of polylith elasticity arc board, and then make conical tube 4's toper tip expand, conical tube 4 after the expansion can make slide bar 8 slide to both ends, and then drive elasticity extrusion piece 9 extrusion block to 2 the position of the compass of coil spring, and then coil spring 2 after the extrusion can drive activity dop 3 and stretch out, and then rotate activity interface 12, make 3 blocks of activity dop to fixed dop 111, and then connect fixed interface 11 and activity interface 12.

In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in 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 therefore, should not be taken as limiting the scope of the present invention.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A fire interface, comprising: comprises an interface body (1); the fire hydrant joint comprises a joint body (1) and a fire hydrant, wherein the joint body (1) comprises a fixed joint (11) and a movable joint (12), the fixed joint (11) is arranged on the fire hydrant, and the movable joint (12) is connected to a fire fighting pipe through a sliding pipe (6); a fixed chuck (111) is arranged on the fixed interface (11); a sliding groove (121) is formed in the movable connector (12), and a movable clamping head (3) is connected in the sliding groove (121) through a spiral spring (2); the movable connector (12) is internally inserted with a conical tube (4), the conical tube (4) is internally sealed with a sliding tube (6) through a sliding sealing ring (5), and the conical tube (4) is formed by splicing a plurality of elastic arc plates; a sealing retainer ring (7) is arranged at the end part of the conical pipe (4), a sliding rod (8) is arranged on the outer wall of the conical pipe (4), an elastic extrusion block (9) is arranged at the top end part of the sliding rod (8), and the elastic extrusion block (9) is positioned at the spiral ring of the spiral spring (2);

a corrugated elastic layer (51) is pressed on the outer wall of the sliding seal ring (5), and wave crests and wave troughs of the corrugated elastic layer (51) are annularly arranged on the sliding seal ring (5); an extrusion spring (52) is arranged inside the sliding seal ring (5), and the top end of the extrusion spring (52) is contacted with the corrugated elastic layer (51);

the outer wall of the sliding pipe (6) is sleeved with a cavity adsorption ring (53), and an arc-shaped laminated plate (54) is arranged in the cavity adsorption ring (53); the cavity adsorption ring (53) is sleeved in the sliding seal ring (5), and the outer wall of the cavity adsorption ring (53) is contacted with the extrusion spring (52);

an extrusion cavity (41) is formed in the conical tube (4), and an extrusion spring is placed in the extrusion cavity (41); the inner cavity wall of the conical pipe (4) is provided with a corrugated sealing layer (42), and the wave troughs and wave crests of the corrugated sealing layer (42) are aligned with the wave troughs and wave crests of the corrugated elastic layer (51);

one end of the conical tube (4) is arranged at the end part of the movable connector (12) through a sealing block, and the other end of the conical tube (4) is arranged at the other end part of the movable connector (12) in a sliding manner through a sliding pressure spring (10); the side wall of the sliding pressure spring (10) is tightly attached to the inner side wall of the sealing retainer ring (7);

an air guide cavity (81) is formed in the sliding rod (8), and the air guide cavity (81) is communicated with the extrusion cavity (41); the outer wall of the elastic extrusion block (9) is provided with a corrugated convex layer (91), an extrusion torsion spring (92) is inserted in the elastic extrusion block (9), the extrusion torsion spring (92) is of a cavity structure, and the end part of the extrusion torsion spring (92) of the cavity structure is positioned in the air guide cavity (81); the outer wall of the spiral spring (2) is of a corrugated convex structure.