CN109424801B

CN109424801B - Fire-fighting water pipe joint

Info

Publication number: CN109424801B
Application number: CN201710726362.2A
Authority: CN
Inventors: 李新君
Original assignee: Taizhou Volla Fire Fighting Equipment Co ltd
Current assignee: Taizhou Volla Fire Fighting Equipment Co ltd
Priority date: 2017-08-22
Filing date: 2017-08-22
Publication date: 2023-12-19
Anticipated expiration: 2037-08-22
Also published as: CN109424801A

Abstract

The utility model belongs to the technical field of fire-fighting equipment, in particular to a fire-fighting water pipe. The utility model aims to provide a fire-fighting water pipe which can solve the problems of high pressure, no water leakage, simple structure, low cost, convenient assembly and long service life at a spliced position. The purpose of the utility model is realized in the following way: the fire-fighting water pipe comprises a pipe body, wherein one end part of a sleeve is sleeved in the pipe body; a plurality of clamping grooves for pre-fixing are formed in the cavity wall of the inner cavity of the pipe body, and clamping rings matched with the clamping grooves are arranged on the sleeve; the clamping pieces formed by a plurality of clamping sleeves which are locked in pairs are arranged on the outer wall of the pipe body and are used for clamping the overlapping part of the outer wall of the pipe body and the sleeve.

Description

Fire-fighting water pipe joint

Technical Field

The utility model belongs to the technical field of fire-fighting equipment, in particular to a fire-fighting water pipe joint.

Background

At present, global climate is warming, resulting in a drier climate with an increased level of fire and a greater occurrence of fire almost every day around the world. Therefore, when encountering fire, it is very important to have a water pipe which can withstand high water pressure and has stable performance. The prior art can realize that the water pipe can bear larger water pressure, but the most easily problem in the actual use process is that the water pipe and other equipment spliced parts probably leak from the splice directly in the actual use process due to factors such as infirm splicing or poor splicing tightness, and the like, so that the water pipe and the equipment are seriously separated. The fire-fighting efficiency is seriously affected, and the problem is avoided especially in rescue according to the time calculated in minutes.

Chinese utility model patent application number: 201220354360.8 the utility model discloses a fire hose joint, which comprises a socket structure formed by a socket and a spigot which are mutually matched, wherein a socket channel for the spigot to be inserted is arranged on the socket, a stop groove is arranged at the bottom of the socket channel, the bottom end of the socket channel is communicated with the stop groove, a plurality of sealing grooves are further arranged on the side wall of the socket channel, a stop block matched with the stop groove is arranged at the top end of the spigot, and a sealing block corresponding to the sealing groove is further arranged on the side wall of the spigot. The utility model can realize the rapid disassembly and assembly of the fire-fighting water pipe, and the socket is forcibly inserted into the bell mouth, thereby meeting the specific requirement of rapid fire-fighting reaction, saving time to a great extent and reducing loss; meanwhile, the socket structure is used, so that the winding of the water pipe caused by a threaded connection mode is avoided; and set up seal groove, sealing piece and elastic sealing layer between bellmouth and the socket, can effectively avoid leaking, practice thrift the water source.

The fire hose joint disclosed by the above is simple and practical, but the sealing performance of the joint is not particularly ideal, so that the fire hose joint is not particularly applicable when facing high pressure, and the requirements on the wall thickness of the water hose and the difficulty in implementing a socket structure are also met. Moreover, the design is not particularly good for protecting the pipeline, and the section of pipeline which participates in the work is often needed to be cut off in the process of actually replacing the pipeline again so as to be continuously put into use. Particularly, fire-fighting water pipes often need long-length water pipes, so that many water pipes cannot be used continuously due to insufficient length, and the materials are wasted greatly.

Disclosure of Invention

The utility model aims to provide the fire-fighting water pipe joint which can solve the problems of high pressure, no water leakage, simple structure, low cost, convenient assembly and long service life at the joint.

The purpose of the utility model is realized in the following way: the fire-fighting water pipe joint comprises a pipe body, wherein a plurality of clamping grooves for pre-fixing are formed in the cavity wall of the inner cavity of the pipe body, a plurality of spiral anti-slip grooves are formed in the outer wall of the pipe body, and a sleeve is sleeved in the pipe body;

the sleeve is in a round table shape and is enlarged towards one side close to the pipe body, a clamping ring matched with the clamping groove is arranged on the sleeve, an inclined surface for guiding is formed on the clamping ring, a limiting surface is formed in the vertical direction of the inclined surface and used for forming a barb-shaped structure, and two sides of the limiting surface are respectively connected with the inclined surfaces on the adjacent clamping ring;

the outer wall of the pipe body is provided with clamping pieces consisting of three or more clamping sleeves which are locked in pairs, and the clamping pieces are used for clamping the overlapping part of the pipe body and the sleeve;

a locking rail matched with the anti-slip groove is formed in the clamping sleeve, and a clamping first part and a clamping second part are formed at two ends of the clamping sleeve respectively; the clamping part is provided with a protruding edge I, the upper end of the protruding edge I is provided with a plane I, and the plane I is provided with a threaded through hole and is arranged opposite to the clamping two parts on the adjacent clamping sleeve; the clamping part II is provided with a protruding edge II, and a threaded blind hole is formed in the protruding edge II and is opposite to the clamping part II on the adjacent clamping sleeve.

Preferably, the inner end surface of the locking rail is provided with an elastic layer, and the elastic layer is used for being attached to the surface of the anti-slip groove when the clamping sleeves are locked in pairs.

Preferably, a flanging is formed on one side of the sleeve, which is far away from the pipe body.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

1. the utility model adopts the mode of clamping the clamping piece and the sleeve simultaneously to increase the capacity of bearing high pressure and the tightness of the splicing part. In particular, the sleeve is tightly pressed on the joint of the pipe body and the sleeve, so that the sealing performance of the water pipe is further improved.

2. The fire hose joint is additionally provided with the sleeve structure, and the pre-fixing can be realized by simply inserting the sleeve into the water pipe. And because of the cooperation of draw-in groove and snap ring, not only have the effect that struts the water pipe and further improve the leakproofness in the insertion process, can form the structure of similar barb moreover and further increase the stability of both connections.

3. The matching of the anti-skid groove and the locking rail can further increase the compactness of the matching of the pipe body and the clamping sleeve, so that the sealing of the water pipe at the joint is further increased.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of a pipe body;

FIG. 3 is a schematic view of the sleeve;

FIG. 4 is a schematic diagram of the structure at A;

FIG. 5 is one of the schematic structural views of the ferrule;

FIG. 6 is a schematic diagram of a ferrule.

In the figure: 1-a tube body; 2-a sleeve; 3-clamping members; 4-clamping a part; 5-clamping the second part; 11-clamping grooves; 12-an anti-skid groove; 21-snap ring; 22-inclined plane; 23-limiting surfaces; 24-flanging; 31-cutting sleeve; 32-locking rail; 41-a first convex edge; 42-threaded through holes; 43-plane one; 51-a second convex edge; 52-threaded blind holes.

Detailed Description

The utility model is further described below with reference to specific examples.

Embodiment one: as shown in fig. 1-6, a fire hose joint comprises a hose body 1, wherein one end part of a sleeve 2 is sleeved in the hose body 1; a plurality of clamping grooves 11 for pre-fixing are formed in the cavity wall of the inner cavity of the pipe body 1, and clamping rings 21 matched with the clamping grooves 11 are arranged on the sleeve 2; the clamping piece 3 consisting of a plurality of clamping sleeves 31 which are locked in pairs is arranged on the outer wall of the pipe body 1, and the clamping piece 3 is used for clamping the overlapping position of the outer wall of the pipe body 1 and the sleeve 2. The size of the sleeve 2 is slightly larger than the inner diameter of the water pipe, so that the water pipe can be stretched when the sleeve 2 is inserted into the water pipe, and a certain tightness can be increased. And the cooperation of draw-in groove 11 snap ring 21 can realize the pre-fixation, increases sleeve 2 and water piping connection's stability. The clamping device 3 and the sleeve 2 are simultaneously clamped, so that the high-pressure bearing capacity and the tightness of the spliced position are improved. In particular, the sleeve 2 has a compression effect on the joint of the pipe body 1 and the sleeve 2, so that the sealing performance of the water pipe is further improved. In actual use, the clamping piece 3 formed by the plurality of clamping sleeves 31 is firstly sleeved outside the pipe body 1 after preliminary locking, then the sleeve 2 is inserted into the pipe body 1, and finally the clamping sleeves 31 are mutually locked, so that the purpose of the utility model is realized.

Preferably, as shown in fig. 1-2, a plurality of spiral anti-slip grooves are formed on the outer wall of the pipe body 1, and locking rails 32 matched with the anti-slip grooves are formed in the clamping sleeve 31. The helical anti-skid grooves may increase anti-skid properties, which may be particularly effective in actual use, and mating with the locking rail 32 may further increase the compactness of the two. So that in actual use the ferrule 31 fits as closely as possible to the tubular body 1, so that the clamping effect is maximized. The spiral design can conveniently adjust the clamping position through rotation, and is simple and convenient. The surface of the pipe body 1 can also adopt other shapes of anti-slip grooves, such as waves, squares and the like, so as to realize the anti-slip locking function.

Preferably, the inner end surface of the locking rail 32 is provided with an elastic layer, and the elastic layer is used for being attached to the surface of the anti-slip groove 12 when the clamping sleeves 31 are locked in pairs. The design can make the contact between the clamping sleeve 31 and the pipe body 1 more sufficient, and the surface of the pipe body 1 is not damaged in the locking process due to the existence of the elastic layer, so that the service life of the product can be effectively prolonged.

Preferably, as shown in fig. 1 or 5, two ends of the ferrule 31 are respectively formed with a clamping first portion 4 and a clamping second portion, the clamping first portion 4 is formed with a protruding edge 41, and a threaded through hole 42 is formed on the protruding edge 41 and is opposite to the clamping second portion on the adjacent ferrule 31; the second clamping part is formed with a second protruding edge 51, and a threaded blind hole 52 is formed on the second protruding edge 51 and is opposite to the first clamping part 4 on the adjacent clamping sleeve 31. Such a threaded through hole 42 in combination with a threaded blind hole 52 provides increased clamping efficiency during actual use. Because if threaded through holes 42 are all used, it is often necessary to fully insert the bolt into threaded through holes 42, it is considered to have been tightened, but when one takes the form of a blind threaded hole 52, it is tightened when the bolt can no longer be inserted. Moreover, if the design of the threaded through hole 42 is adopted, a part of the bolt tends to be protruded during the actual use, and the protruded bolt may cause some damage to the human body, and the design of the threaded blind hole 52 avoids the damage and the design of the threaded through hole 42 is more attractive and complete than the design of the threaded through hole 42.

Preferably, as shown in fig. 1, 5 or 6, a plane one 43 is formed at the upper end of the flange one 41, and the threaded through hole 42 is formed on the plane one 43. The shaping of the planar one 43 can increase the location of one fastener installation. This can increase the aesthetic appearance. In practice, two reinforcing ribs may be added on both sides of the first plane 43 to increase the strength of the product.

Preferably, the clamping member 3 consists of three or more clamping sleeves 31. In the practical use process, the pipe body 1 of the present utility model is often relatively large in size, and in view of reducing the manufacturing cost and facilitating the installation, a plurality of cutting ferrule 31 are generally adopted for combination use, so as to achieve the effect of rapid installation. Especially in the fire extinguishing process, the spliced pipeline which can be the fastest is the primary task. A clamping element 3 consisting of three clamping sleeves 31 is a preferred solution.

Preferably, as shown in fig. 1, 3 or 4, the collar 21 on the sleeve 2 is formed with an inclined surface 22 for guiding, a limiting surface 23 is formed on the inclined surface 22 in the vertical direction, so as to form a barb-shaped structure, and two sides of the limiting surface 23 are respectively connected with the inclined surfaces 22 on the adjacent collar 21. The fire hose joint is added with the structure of the sleeve 2, and the pre-fixing can be realized by simply inserting the sleeve 2 into a water pipe. And because of the cooperation of the clamping groove 11 and the clamping ring 21, the sealing performance is further improved by expanding the water pipe in the inserting process, and the barb-like structure can be formed, so that the stability of connection of the clamping groove 11 and the clamping ring 21 is further improved.

Preferably, as shown in fig. 3 or 4, the sleeve 2 has a "truncated cone" shape, and increases toward the side close to the tube body 1. This design can increase the tightness during insertion. Meanwhile, the subsequent clamping piece 3 is convenient to clamp the pipe body 1, and the clamping effect is increased.

Preferably, as shown in fig. 3, the sleeve 2 is formed with a turned-out edge 24 on the side facing away from the tube body 1. The design of the flange 24 may provide a location for subsequent connection to other fire suppression equipment. At the same time, the sleeve 2 is prevented from being completely immersed into the pipe body 1, which is inconvenient.

For better display of the product structure, the following is specifically explained:

the sleeve 2 with the snap ring 21 on the surface is inserted into the pipe body 1, the inner cavity of the pipe body 1 is provided with a clamping groove 11 matched with the snap ring 21, then the overlapping part of the outer side of the pipe body 1 and the sleeve 2 is provided with a clamping piece 3, and the clamping piece 3 further increases the clamping effect by abutting against the outer wall of the pipe body 1. The clamping pieces 3 are formed by a plurality of clamping sleeves 31, and are locked in pairs when in use, so that the installation and the use are convenient.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: 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. Fire hose joint, including body (1), its characterized in that: a plurality of clamping grooves (11) for pre-fixing are formed in the cavity wall of the inner cavity of the pipe body (1), a plurality of spiral anti-slip grooves (12) are formed in the outer wall of the pipe body (1), and a sleeve (2) is sleeved in the pipe body (1);

the shape of the sleeve (2) is in a round table shape, the sleeve is enlarged towards one side close to the pipe body (1), a clamping ring (21) matched with the clamping groove (11) is arranged on the sleeve (2), an inclined surface (22) for guiding is formed on the clamping ring (21), a limiting surface (23) is formed in the vertical direction of the inclined surface (22) and used for forming a barb-shaped structure, and two sides of the limiting surface (23) are respectively connected with the inclined surfaces (22) on the adjacent clamping ring (21);

the outer wall of the pipe body (1) is provided with clamping pieces (3) consisting of three or more clamping sleeves (31) which are locked in pairs, and the clamping pieces (3) are used for clamping the overlapping part of the pipe body (1) and the sleeve (2) in a sleeved mode;

a locking rail (32) matched with the anti-slip groove (12) is formed in the clamping sleeve (31), and a clamping first part (4) and a clamping second part (5) are formed at two ends of the clamping sleeve (31) respectively; the clamping part (4) is provided with a protruding edge (41), the upper end of the protruding edge (41) is provided with a plane I (43), and the plane I (43) is provided with a threaded through hole (42) and is arranged opposite to the clamping part (5) on the adjacent clamping sleeve (31); the clamping second part (5) is provided with a protruding edge second (51), and a threaded blind hole (52) is formed in the protruding edge second (51) and is opposite to the clamping first part (4) on the adjacent clamping sleeve (31).

2. The fire hose joint of claim 1, wherein: the inner end face of the locking rail (32) is provided with an elastic layer, and the elastic layer is used for being attached to the surface of the anti-slip groove (12) when the clamping sleeves (31) are locked in pairs.

3. The fire hose joint of claim 1, wherein: one side of the sleeve (2) far away from the pipe body (1) is formed with an outward flange (24).