CN208719631U

CN208719631U - A kind of extinguishing pipe

Info

Publication number: CN208719631U
Application number: CN201821369073.8U
Authority: CN
Inventors: 黄双武
Original assignee: NINGBO HONGWU PIPES Co Ltd
Current assignee: NINGBO HONGWU PIPES Co Ltd
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2019-04-09
Anticipated expiration: 2028-08-23

Abstract

The utility model discloses a kind of extinguishing pipes, including bellows, the bellows axial ends is respectively fixedly connected with a cylindric core wire, each core wire radial outside wall is connected with locking nut, the locking nut extends towards one end far from bellows to be used for jointing, the core wire is far from being provided at least one sealing ring on one end of bellows, the sealing ring is used for locking nut, the junction of core wire and connector is sealed, solve install inside the extinguishing pipe be bellows when, it will appear axially extending phenomenon when being under pressure and impacting, so that the air-tightness of extinguishing pipe declines, the problem of may leaking, a kind of extinguishing pipe disclosed by the utility model, effectively improve the air-tightness of extinguishing pipe, avoid the problem that discovery leakage.

Description

A kind of extinguishing pipe

Technical field

The utility model belongs to fire-fighting equipment technical field, in particular to a kind of extinguishing pipe.

Background technique

Fire-fighting refers to that elimination prevents, i.e. prevention and solution people encounters artificial in life, work, learning process With the general name of nature, accidental disaster.Often need to use extinguishing pipe in fire-fighting operation, by extinguishing pipe connect fire-fighting equipment, Equipment, conveying fire-fighting fire extinguishing water, gas or other media, existing extinguishing pipe connection type have threaded connection, groove to connect It connects and flanged joint.

When what is installed inside extinguishing pipe is bellows, bellows has elastic characteristic, can offset high-pressure delivery water, gas The outbursts of body or other medium moments is impacted, effectively prevent traditional pipeline easily by drawing crack the phenomenon that.But bellows exists It is under pressure and will appear axially extending phenomenon when impacting, so that the junction air-tightness of extinguishing pipe and connector declines, Ke Nengfa The problem of raw leakage.

Utility model content

The purpose of the utility model is to provide a kind of extinguishing pipes, effectively improve the air-tightness of extinguishing pipe, and discovery is avoided to leak The problem of.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of extinguishing pipe, including bellows (1), it is characterised in that: bellows (1) axial ends passes through circumference respectively Boxing is fixedly connected with a cylindric core wire (2), and each core wire (2) radial outside wall is connected with locking nut (3), the lock Tight nut (3) extends towards one end far from bellows (1) to be used for jointing, the core wire (2) far from bellows (1) one At least one sealing ring (5) is provided on end, the sealing ring (5) is used for the company of locking nut (3), core wire (2) and connector The place of connecing is sealed.

Preferably, the one end of the core wire far from bellows and be located at radial outside wall and be provided with step, described The inner sidewall of rank and locking nut composition is for accommodating the sealing ring and for the accommodation groove of connector inserting.

Preferably, the core wire is close to the outside bending setting in one end of bellows.

Preferably, the junction of the core wire and bellows is also arranged with lantern ring, lantern ring axial direction one end with it is described Core wire is fixedly connected by circumferential ring weldering

Preferably, the lantern ring is close to the inside bending setting in one end of core wire.

Preferably, the locking nut is provided with close to one end of bellows and to connect with wall slip on the outside of the core wire Annular lug on the core wire lateral wall and is located in locking nut and is provided with ring limit block, and the ring limit block abuts The displacement of locking nut is limited in one end of annular lug.

Preferably, being provided with net cover on the bellows radial outside wall, the net cover extends to the lateral wall of core wire.

Preferably, the net cover is stainless steel net cover.

Preferably, being provided with anti-skid protecting cover on the core wire and positioned at the side of locking nut.

Using the utility model can achieve it is following the utility model has the advantages that

1. the utility model is by setting locking nut, core wire and sealing ring, when extinguishing pipe jointing, connector and locking Nut thread connects and squeezes sealing ring, so that sealing ring is sufficient filling with the junction of locking nut, core wire and connector, air-tightness Height is not susceptible to the problem of leaking；

2. the utility model limits the position of sealing ring, avoids sealing ring from locking screw by the way that step is arranged on core wire The junction of female, core wire and connector slips, and further increases air-tightness.

Detailed description of the invention

Fig. 1 is the semi-section schematic diagram of extinguishing pipe in embodiment one；

Fig. 2 is the enlarged diagram in Fig. 1 at A；

Fig. 3 is the enlarged diagram in Fig. 1 at B；

Fig. 4 is the semi-section schematic diagram of extinguishing pipe part in embodiment two；

Fig. 5 is the enlarged diagram in Fig. 4 at C.

In figure: 1, bellows；2, core wire；21, ring limit block；22, step；3, locking nut；31, annular lug；41, Banjo fixing butt jointing；42, necking down connector；5, sealing ring；6, lantern ring；7, net cover；8, anti-skid protecting cover.

Specific embodiment

Specific embodiment of the present utility model is described in detail with reference to the accompanying drawing.

Embodiment one

Present embodiment discloses a kind of extinguishing pipes, referring to figs. 1 and 2, including bellows 1,1 axial ends of bellows It is respectively fixedly connected with a cylindric core wire 2, in the present embodiment, core wire 2 is welded by circumferential ring with bellows 1 and is fixedly connected, Waterproof and bonding strength height；Each 2 radial outside wall of core wire is connected with locking nut 3, and locking nut 3 is towards far from bellows 1 One end extends to be used for jointing, and locking nut 3 has been wholely set and 2 outside wall slip of core wire close to one end of bellows 1 The annular lug 31 of connection on 2 lateral wall of core wire and is located in locking nut 3 and is provided with ring limit block 21, ring limit block 21 are connected to one end of annular lug 31 to limit the displacement of locking nut 3；Connector includes banjo fixing butt jointing 41 and necking down connector 42, banjo fixing butt jointing 41 and necking down connector 42 are provided with the external screw thread cooperated with locking nut 3 close to one end of locking nut 3.

Core wire 2 is provided at least one sealing ring 5 on one end far from bellows 1, in the present embodiment, sealing ring 5 is arranged There is one, sealing ring 5 is squeezed when connector is threadedly coupled with locking nut 3, so that the connection of locking nut 3, core wire 2 and connector Place's sealing.

In order to further limit the position of sealing ring 5, core wire 2 is far from 1 one end of bellows and is located at setting at radial outer wall Have a step 22, the inner sidewall composition of step 22 and locking nut 3 for accommodating sealing ring 5 and for the accommodation groove of connector inserting, When connector is threadedly coupled with locking nut 3, sealing ring 5 is squeezed after one end insertion accommodation groove of connector.

In conjunction with shown in Fig. 1 and Fig. 3, in order to improve the structural strength of core wire 2 with the junction of bellows 1, core wire 2 and ripple The junction of pipe 1 is also arranged with lantern ring 6, and the junction bending to avoid core wire 2 when in use and bellows 1 causes bellows 1 Damage extends the service life of bellows 1；Lantern ring 6 is arranged close to the inside bending in one end of core wire 2 and is fixedly connected with core wire 2, In the present embodiment, lantern ring 6 is fixedly connected with core wire 2 by circumferential ring weldering.

In order to avoid compression shock is directly impinging the junction of core wire 2 Yu bellows 1, core wire 2 close to bellows 1 one Outside bending is held to be arranged, to reduce direct impact force；It is provided with net cover 7 on 1 radial outside wall of bellows, net cover 7 extends to weldering The lateral wall of core 2, net cover 7 is preferably stainless steel net cover 7 in the present embodiment, for limiting stroke and the protection of bellows 1 The lateral wall of bellows 1, while taking bellows 1 convenient for operator.

In use, banjo fixing butt jointing 41 and necking down connector 42 are threadedly coupled with the locking nut 3 at 1 both ends of bellows respectively, One end of banjo fixing butt jointing 41 and necking down connector 42, which is inserted into accommodation groove, squeezes sealing ring 5, is squeezed and deformed sealing ring 5 and is full of Trench bottom is accommodated, annular lug 31 is mutually abutted with ring limit block 21 at this time, then carries out water, gas or other media High-pressure delivery.

Embodiment two

Present embodiment discloses a kind of extinguishing pipes, in conjunction with shown in Fig. 4 and Fig. 5, with embodiment one main difference is that close There are two the settings of seal 5, and two sealing rings 5 are along the axially stacking setting of core wire 2, and compared to one sealing ring 5 of two sealing rings 5 is more It is easy to be extruded extension, and stability is more preferable, when the damage of some sealing ring 5, another sealing ring 5 is also able to maintain certain journey The air-tightness of degree；It is also arranged with anti-skid protecting cover 8 on core wire 2 and positioned at locking nut 3 close to the side of bellows 1, convenient for operation Personnel hold core wire 2, while annular lug 31 being driven to be connected to ring limit block 21, connect convenient for locking nut 3 and joint screw thread It connects.

Certainly, the representative instance of above only the utility model, in addition to this, the utility model can also have other a variety of Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection Within the scope of.

Claims

1. a kind of extinguishing pipe, including bellows (1), it is characterised in that: bellows (1) axial ends passes through circumferential ring respectively Weldering is fixedly connected with a cylindric core wire (2), and each core wire (2) radial outside wall is connected with locking nut (3), the locking Nut (3) extends towards one end far from bellows (1) to be used for jointing, the one end of the core wire (2) far from bellows (1) On be provided at least one sealing ring (5), the sealing ring (5) is used for the connection of locking nut (3), core wire (2) and connector Place is sealed.

2. extinguishing pipe according to claim 1, it is characterised in that: the one end of the core wire (2) far from bellows (1) and position It is provided at radial outside wall step (22), the inner sidewall of the step (22) and locking nut (3) is formed for accommodating State sealing ring (5) and the accommodation groove for connector inserting.

3. extinguishing pipe according to claim 1, it is characterised in that: the core wire (2) is outside close to the one end of bellows (1) Bending setting.

4. extinguishing pipe according to claim 1, it is characterised in that: the core wire (2) and the junction of bellows (1) also cover Equipped with lantern ring (6), the axial one end of the lantern ring (6) is fixedly connected with the core wire (2) by circumferential ring weldering.

5. extinguishing pipe according to claim 4, it is characterised in that: the lantern ring (6) close to core wire (2) one end to infolding Curved setting.

6. extinguishing pipe according to claim 1, it is characterised in that: the one end of the locking nut (3) close to bellows (1) Be provided with the annular lug (31) that connect of wall slip on the outside of the core wire (2), on core wire (2) lateral wall and be located at and lock It is provided with ring limit block (21) in nut (3), the ring limit block (21) is connected to one end of annular lug (31) to limit The displacement of locking nut (3) processed.

7. extinguishing pipe according to claim 1-6, it is characterised in that: on bellows (1) the radial outside wall It is provided with net cover (7), the net cover (7) extends to the lateral wall of core wire (2).

8. extinguishing pipe according to claim 7, it is characterised in that: the net cover (7) is stainless steel net cover (7).

9. extinguishing pipe according to claim 1, it is characterised in that: on the core wire (2) and positioned at the one of locking nut (3) Side is provided with anti-skid protecting cover (8).