CN213809372U

CN213809372U - Fire hose connects knot

Info

Publication number: CN213809372U
Application number: CN202021898799.8U
Authority: CN
Inventors: 郭奕雄
Original assignee: GUANGZHOU DAHUA CO Ltd
Current assignee: GUANGZHOU DAHUA CO Ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-07-27
Anticipated expiration: 2030-09-03

Abstract

The utility model relates to a fire-fighting equipment technical field discloses a fire hose connects knot, including joint seat, center tube and fastening pipe, the center tube is worn to adorn in the joint seat, and joint seat and center tube axial stop assembly, center tube have the axial and pass the joint seat and be used for connecting the canned paragraph of hosepipe, and the annular has been seted up in the outside of canned paragraph, and the fastening pipe box is established on the canned paragraph, has still arranged on the inner wall of fastening pipe with annular stop complex stopping conical surface, the stopping conical surface inclines towards the direction of keeping away from the joint seat. When the water hose is connected with the central tube, an operator sleeves the fastening tube outside the water hose, the retaining conical surface on the fastening tube is axially blocked with the groove wall of the annular groove of the fixing section, so that the fastening tube is prevented from being separated from the water hose, the fastening tube is hooped on the water hose to keep the water hose in close contact with the central tube, the retaining conical surface and the annular groove radially extrude the water hose, the sealing performance between the water hose and the central tube is improved, the leakage phenomenon is avoided, and the fire fighting and disaster relief work is ensured.

Description

Fire hose connects knot

Technical Field

The utility model relates to a fire-fighting equipment technical field especially relates to a fire hose connects knot.

Background

Fire is one of the main disasters that threaten public safety and social development most often and most generally, and fire fighting equipment is an essential item in residential buildings, shopping malls and crowd concentration areas. Fire hose, fire gun, fire hydrant are fire-fighting equipment commonly used, when putting out a fire, because the fire source position is different, and the distance between its and the fire hydrant is different, when the fire source is far away, the fire fighter usually need with many to take to connect through the connector link with the fire hose.

Chinese utility model patent that the bulletin number is CN203264118U, the bulletin date is 2014.08.27 discloses a fire hose connects knot, including the connecting seat of two mutual joints and install the connecting pipe on the connecting seat, the contact surface of two connecting seats is connection terminal surface, its characterized in that: be equipped with elastic connection rod, jack catch, bulldoze switch, ring groove on the connecting seat, elastic connection rod locates inside the connecting seat, and its front end extends the connecting end off-plate, and the jack catch sets up in the elastic connection rod front end, bulldozes the switch and is connected with elastic connection rod, inside ring groove seted up the connecting seat, keeps off between connecting pipe and the connecting seat and connects rotation fit, is equipped with connecting thread on the connecting pipe outer wall.

When the fire hose buckle is used, a hoop or an iron wire is usually adopted to be directly wound and fixed between the fire hose and the hose buckle, and the joint of the fire hose and the fire hose buckle is easy to leak, even explode or slip when the connection mode is adopted, so that fire fighting and disaster relief work is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a fire hose connects knot to solve the fire hose that the fire hose connects the knot among the prior art and connect the knot through clamp or steel wire leakage when taking place easily between detaining, take place to explode or the slippage even, influence the problem of fire control relief work.

In order to realize the above object, the utility model provides a fire hose connects knot, including joint seat, center tube and fastening pipe, the center tube wear to adorn in the joint seat, the joint seat with center tube axial stop assembly, the center tube has the axial to pass the joint seat is used for connecting the canned paragraph of hosepipe, the annular has been seted up in the outside of canned paragraph, the fastening pipe box is established on the canned paragraph, still arranged on the inner wall of fastening pipe with annular stop complex stopping conical surface, stopping conical surface is towards keeping away from the direction slope of joint seat.

Preferably, the anti-back taper surface is annularly arranged along the circumferential direction of the fastening tube.

Preferably, the annular grooves are arranged in a plurality of axial intervals along the fixed section, and the stopping conical surfaces correspond to the annular grooves one to one.

Preferably, the outer side of the fastening pipe is further provided with a rotation stopping ridge, and the rotation stopping ridge extends along the axial direction of the fastening pipe.

Preferably, the rotation stopping ridges are uniformly distributed along the circumferential direction of the fastening pipe at intervals.

Preferably, the fastening seat comprises a seat body, two fasteners are symmetrically arranged on the seat body, and a clamping groove matched with the fasteners is further arranged on the seat body.

Preferably, a sealing ring is further arranged at one end of the central pipe, which is positioned in the buckling seat.

The embodiment of the utility model provides a fire hose connects knot compares with prior art, and its beneficial effect lies in: the fastening pipe is sleeved outside the central pipe, when the water hose is connected with the central pipe, an operator sleeves the fastening pipe outside the water hose, the stopping conical surface on the fastening pipe is axially stopped with the groove wall of the annular groove of the fixing section, the fastening pipe is prevented from being separated from the water hose, the fastening pipe hoop is arranged on the water hose to enable the water hose to be in close contact with the central pipe, the stopping conical surface and the annular groove radially extrude the water hose, the sealing performance between the water hose and the central pipe is improved, the leakage phenomenon is avoided, and the fire fighting and disaster relief work is guaranteed.

Drawings

FIG. 1 is a schematic structural view of the fire hose coupler of the present invention;

FIG. 2 is an exploded schematic view of the fire hose coupling of FIG. 1;

FIG. 3 is a half sectional view of the fire hose coupling of FIG. 2;

fig. 4 is a half sectional view of a fastening pipe of the fire hose coupling of fig. 3.

In the figure, 1, a fastening seat; 11. a base body; 12. buckling; 13. a card slot; 2. a central tube; 21. a retainer ring; 22. a ring groove; 3. fastening the tube; 31. a backstop conical surface; 32. stopping the rotary arris; 4. and (5) sealing rings.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses a fire hose connects preferred embodiment of knot, as shown in fig. 1 to 4, this fire hose connects knot including fastening seat 1, center tube 2 and fastening pipe 3, the fire hose connects knot and is usually for using in pairs for connect two hosepipes or be used for connecting hosepipe and squirt, hosepipe and fire hydrant, fastening seat 1 be used for with another fastening seat 1 lock joint, center tube 2 is used for connecting the hosepipe, 3 covers of fastening pipe establish on center tube 2, be used for fixing the hosepipe on center tube 2.

The fastening seat 1 comprises a seat body 11, two fasteners 12 and two clamping grooves 13, the fasteners 12 and the seat body 11 are of an integrally formed structure, the two fasteners 12 are arranged on the seat body 11 in an axisymmetric manner by taking the central line of the seat body 11 as the axis, the end part of each fastener 12 is positioned on the outer side of the seat body 11, and the clamping jaws of the fasteners 12 extend to the outer side of the seat body 11. The number of the clamping grooves 13 is two, the two clamping grooves 13 are symmetrically arranged on the base body 11 by taking the central line of the base body 11 as an axis, the two clamping grooves 13 correspond to the two buckles 12 one by one, and the clamping grooves 13 are spiral grooves. When the two fastening seats 1 are butted, the buckles 12 of the two fastening seats 1 are buckled in the clamping grooves 13 of the other fastening seat 1 in a subsection mode, and tight connection between the fastening seats 1 is guaranteed. The structure of the base body 11 is the same as the prior art and will not be described in detail here.

The central tube 2 is axially arranged in the buckling seat 1 in a penetrating mode, an inner hole of the buckling seat 1 is a stepped hole, a retaining ring 21 is integrally formed on the outer side of one end of the central tube 2, the stepped surface of the stepped hole is axially retained by the retaining ring 21, and the central tube 2 and the buckling seat 1 are assembled in a one-way retaining mode along the axial direction of the buckling seat 1. The sealing washer 4 has still been arranged to the inboard that center tube 2 is located the one end of buckle seat 1, and when two buckle seats 1 docks, the sealing washer 4 on two center tubes 2 extrudees each other, has increased the leakproofness between the center tube 2, avoids appearing the seepage phenomenon in buckle seat 1's hookup location department.

The other end of the central tube 2 axially penetrates through the fastening seat 1, the part of the central tube 2 penetrating through the fastening seat 1 forms a fixed section for connecting a water hose, and the fastening tube 3 is sleeved on the fixed section of the central tube 2. Annular 22 has been seted up in the outside of canned paragraph, and annular 22 has a plurality ofly and has arranged a plurality ofly along canned paragraph's axial interval, and annular 22 is the U-shaped groove, and annular 22 is used for increasing the axial frictional force between fastening pipe 3 and the center tube 2, avoids fastening pipe 3 to break away from center tube 2, prevents the problem of blasting or slippage from appearing.

The inner wall of the fastening pipe 3 is provided with a stopping conical surface 31, one end of the stopping conical surface 31, which is far away from the fastening pipe 3, inclines towards the direction far away from the fastening seat 1, when the fastening pipe 3 is installed on the central pipe 2 and the water hose, the stopping conical surface 31 has a guiding function and reduces installation resistance, and when the water hose expands after water flows through, the stopping conical surface 31 and the groove wall of the annular groove 22 on the central pipe 2 are axially stopped, so that the resistance of the fastening pipe 3, which is separated from the central pipe 2, can be increased, and the phenomena of blasting or slipping are prevented. The retaining conical surfaces 31 are arranged at intervals along the axial direction of the fastening pipe 3, the number of the retaining conical surfaces 31 is the same as that of the ring grooves 22 of the central pipe 2, and the retaining conical surfaces 31 correspond to the ring grooves 22 one by one and are axially retained and assembled.

The inner wall of the fastening pipe 3 is integrally formed with annular inverted teeth, tooth surfaces of the inverted teeth form a stopping conical surface 31, the stopping conical surface 31 is annularly arranged along the circumferential direction of the fastening pipe 3, the contact area between the stopping conical surface 31 and the annular groove 22 is increased, axial resistance is increased, meanwhile, the stopping conical surface 31 can also press the water hose on the central pipe 2, and the sealing performance between the water hose and the central pipe 2 is improved.

The outer side of the fastening pipe 3 is also provided with a rotation stopping edge 32, the rotation stopping edge 32 extends along the axial direction of the fastening pipe 3, and the rotation stopping edges 32 are uniformly distributed along the circumferential direction of the fastening pipe 3 at intervals. The rotation stopping ribs 32 facilitate an operator to rotate the fastening pipe 3 by using a tool, so that the fastening pipe 3 is sleeved on the central pipe 2; meanwhile, the rotation stopping ridges 32 can also increase the structural strength of the fastening pipe 3, tightly press the water belt on the outer surface of the central pipe 2 and increase the sealing property between the central pipe 2 and the water belt.

To sum up, the embodiment of the utility model provides a fire hose connects knot, the outside cover of its center tube is equipped with the fastening pipe, when hosepipe and center tube are connected, operating personnel establishes the fastening pipe box in the outside of hosepipe, the axial stop is followed with the cell wall of the annular of canned paragraph to the stopping conical surface on the fastening pipe, avoid fastening pipe to break away from the hosepipe, the fastening ferrule is established and is made hosepipe and center tube keep in close contact with on the hosepipe, the stopping conical surface also carries out radial extrusion to the hosepipe with the annular, the leakproofness between hosepipe and the center tube has been increased, avoid taking place the seepage phenomenon, guarantee that fire control relief work goes on.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The fire hose connecting buckle is characterized by comprising a buckling seat, a central pipe and a fastening pipe, wherein the central pipe is arranged in the buckling seat in a penetrating mode, the buckling seat and the central pipe are axially assembled in a blocking mode, the central pipe is provided with a fixing section axially penetrating through the buckling seat and used for connecting a hose, an annular groove is formed in the outer side of the fixing section, the fastening pipe is sleeved on the fixing section, a stopping conical surface matched with the annular groove in a blocking mode is further arranged on the inner wall of the fastening pipe, and the stopping conical surface inclines towards the direction away from the buckling seat.

2. A fire hose coupling according to claim 1, wherein the backstop taper is annularly arranged along a circumferential direction of the fastening tube.

3. A fire hose coupling according to claim 2, wherein the ring grooves are arranged at intervals in the axial direction of the fixing section, and the backstop tapered surfaces correspond to the ring grooves one to one.

4. A fire hose coupling according to any one of claims 1-3, wherein an anti-rotation ridge is further arranged on the outside of the fastening tube, the anti-rotation ridge extending in the axial direction of the fastening tube.

5. A fire hose coupling according to claim 4, wherein the rotation-stopping ridges are evenly distributed along the circumferential direction of the fastening pipe at intervals.

6. A fire hose coupling according to any one of claims 1-3, wherein the coupling comprises a base body, two buckles are symmetrically arranged on the base body, and a clamping groove adapted to the buckles is further arranged on the base body.

7. A fire hose coupling according to any one of claims 1-3, wherein a sealing ring is further arranged at the end of the centre tube located within the coupling seat.