CN209790691U - Rotatable fire pump adapter - Google Patents

Abstract

The utility model discloses a rotatable fire pump adapter, in the actual use process, the adapter is sleeved outside a water outlet interface, the inner ring part of the adapter is abutted against the step ring of the water outlet interface, the middle ring part of the adapter is connected with the opening end of the adapter, and the structure is stable; and the ball is arranged between the step ring of the water outlet connector and the inner ring part of the adapter, when a worker uses the fire hydrant, the fire hose is connected to the outer end part of the adapter, the worker pulls the fire hose to move in the walking process, and the adapter sleeved outside the water outlet connector can rotate freely by matching with the fire hose, so that the problem of bursting or flow reduction caused by bending of the fire hose in use is effectively solved.

Description

Rotatable fire pump adapter

Technical Field

The utility model relates to an outdoor fire hydrant technical field especially indicates a rotatable fire pump adapter.

Background

The fire-fighting water pump adapter is a special fire-fighting device for high-rise buildings matched with a fire-fighting motor pump, mainly solves the problem of insufficient water pressure of the high-rise buildings and ensures the fire-fighting water of the high-rise buildings. The existing outdoor fire hydrant comprises a fire hydrant body, a valve body and a bent pipe, wherein a valve rod is arranged in the valve body, the upper end part of the valve rod is convexly arranged outside the fire hydrant body, and the lower end part of the valve rod is connected with a valve clack. The existing fire-fighting water pump adapter is fixedly connected to a fire-fighting pipeline, the direction of a water outlet is fixed and can not rotate freely, a fire-fighting water hose sleeved on a water outlet connector is used, the water hose is easy to break or the flow rate is reduced due to bending under the water pressure in the pipeline, the pressure value of water required by rescue workers can not be reached, the water pressure can not be effectively controlled, the needs of the rescue workers can not be met, and great obstacles are brought to fire-fighting rescue.

In view of the above, the present inventors have made extensive conception on the defects and inconveniences caused by the imperfect structural design, and have developed and designed the present application by actively researching, improving and trying on the defects and inconveniences.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotatable fire pump adapter, this adapter can rotate along with the fire hose at the fire hose in-process of dragging, has avoided going out water interface and fire hose to appear the situation of buckling, goes out water unsmooth.

In order to achieve the above purpose, the solution of the present invention is:

A rotatable fire pump adapter comprises a fire hydrant body, a water outlet port arranged on the fire hydrant body and an adapter sleeved outside the water outlet port; the water outlet port is provided with an outwardly convex step ring at one end close to the fire hydrant body, and an open end communicated with the adapter is arranged at one end far away from the fire hydrant body; the adapter is provided with an inner ring part abutted against the step ring, a middle ring part tightly combined with the opening end and an outer end part connected with the fire hose, and a ball is arranged between the step ring and the inner ring part.

The outer end is in the shape of a smoothly curved tube.

A sealing washer is arranged between the open end and the middle ring part, the sealing washer is provided with an outer ring clamped in a gap between the open end and the middle ring part and an inner ring attached to the inner wall of the open end and the inner ring, and the outer ring is vertically arranged on the outer wall of the inner ring.

Two side surfaces of the joint of the outer ring and the inner ring are respectively provided with an inclined step ring protruding outwards, and the inclined step ring is provided with an inclined surface extending from the outer ring to the inner ring.

And a V-shaped annular groove is arranged on the inclined surface.

And two side surfaces of the joint of the outer ring and the inner ring are respectively provided with an inward-sunken V-shaped groove ring.

A fixing structure is also arranged between the water outlet interface and the adapter, and the fixing structure comprises a first groove ring arranged on the outer wall of the water outlet interface, a plurality of first lugs arranged on the inner wall of the adapter sleeved with the water outlet interface and a spring accommodated in the first groove ring; the first lug is inserted into one end of the first groove ring and connected with one end of the spring, and the other end of the spring abuts against the other end of the first groove ring.

The spring is provided with a steel ball at one end abutted to the first groove ring.

The first lug is provided with a positioning column which can be sleeved with a spring, and a spherical part is formed at one end of the first lug, which is abutted against the first groove ring.

And the pipe wall of the adapter is provided with an insulating layer.

after the structure is adopted, the rotatable fire pump adapter is sleeved outside the water outlet interface in the actual use process, the inner ring part of the adapter is abutted against the step ring of the water outlet interface, the middle ring part of the adapter is connected with the opening end of the adapter, and the structure is stable; and the ball is arranged between the step ring of the water outlet connector and the inner ring part of the adapter, when a worker uses the fire hydrant, the fire hose is connected to the outer end part of the adapter, the worker pulls the fire hose to move in the walking process, and the adapter sleeved outside the water outlet connector can rotate freely by matching with the fire hose, so that the problem of bursting or flow reduction caused by bending of the fire hose in use is effectively solved. Compared with the prior art, the utility model discloses rotatable fire pump adapter is equipped with the adapter at the play water connection overcoat, through set up the ball at step ring and interior annular portion, makes the adapter can carry out the free rotation, and adapter cooperation fire hose rotates towards arbitrary direction when realizing using, has avoided the fire hose or the fire engine water hose that the delivery port direction is connected to appear the situation of buckling sometimes.

Drawings

Fig. 1 is a front view of the present invention;

Fig. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a cross-sectional view of a first form of a sealing gasket;

Fig. 5 is a second cross-sectional view of the sealing gasket.

Description of the symbols

1-fire hydrant body

2-water outlet interface

21-step ring 22-open end 23-balls

24-sealing washer 241-inner ring 242-outer ring 243-inclined step ring

2431V-shaped ring groove 244 groove ring

3-adapter 31-inner ring part 32-middle ring part 33-outer end part

4-fixing structure

41-first groove ring 42-first bump 421-spherical part 422-positioning column

43-spring 44-steel ball.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

Referring to fig. 1-5, the present invention discloses a rotatable fire pump adaptor, which comprises a fire hydrant body 1, a water outlet 2 disposed on the fire hydrant body 1, and an adaptor 3 sleeved outside the water outlet 2; the water outlet port 2 is provided with an outwardly convex step ring 21 at one end close to the fire hydrant body and an open end 22 communicated with the adapter 3 at one end far away from the fire hydrant body; the adapter 3 has an inner ring portion 31 abutting against the step ring 21, an intermediate ring portion 32 closely coupled to the open end 22, and an outer end portion 33 connected to the fire hose, with balls 23 provided between the step ring 21 and the inner ring portion 31.

the utility model discloses rotatable fire pump adapter, in the in-service use process, establish adapter 3 outside outlet port 2 overcoat, the inner ring portion 31 of adapter 3 supports against with the step ring 21 of outlet port 2, the middle ring portion 32 of adapter 3 is connected with the open end 22 of adapter 3, the structure is firm; and the ball 23 is arranged between the step ring 21 of the water outlet connector 2 and the inner ring part 31 of the adapter 3, when a worker uses the fire hydrant, the fire hose is connected to the outer end part 33 of the adapter 3, the worker pulls the fire hose to move in the walking process, the adapter 3 sleeved outside the water outlet connector 2 can rotate freely by matching with the fire hose, and the problem that the fire hose is broken or the flow is reduced due to bending in use is effectively solved.

Preferably, outer end 33 is smoothly curved tubular. In the use process, the outer end part 33 of the bent tubular shape is a transition structure connected with the fire hose, and the outer end part 33 of the bent tubular shape enables the adapter 3 to rotate more smoothly along with the movement of the fire hose, so that the fire hose is prevented from being bent during the movement; and the opening direction of the outer end part 33 is changed when the adapter 3 rotates, the water outlet direction can be freely changed, and the water outlet is more stable.

Preferably, a sealing washer 24 is arranged between the open end 22 and the middle ring part 32, the sealing washer 24 is provided with an outer ring 242 clamped in a gap between the open end 22 and the middle ring part 32 and an inner ring 241 attached to the inner wall of the open end 22 and the middle ring part 32, and the outer ring 242 is vertically arranged on the outer wall of the inner ring 241; so that the open end 22 and the middle ring part 32 are hermetically connected to prevent water leakage.

Preferably, two side surfaces where the outer ring 242 and the inner ring 241 are connected are respectively provided with an inclined step ring 243 protruding outward, and the inclined step ring 243 has an inclined surface extending from the outer ring 242 to the inner ring 241. When the fire hydrant is working, a fine gap is generated between the opening end 22 and the middle ring part 32 by the action force of water flow, the inclined step ring 243 can be blocked in the gap, the opening end 22 and the middle ring part 32 are ensured to be connected in a sealing way all the time, the water flow is prevented from permeating into the gap, and the sealing effect is good.

preferably, a V-shaped ring groove 2431 is provided on the inclined surface. The V-ring groove 2431 may increase the elastic deformation of the sealing gasket 24 during the pulling or pressing of the sealing gasket 24, further enhancing the sealing effect of the sealing gasket 24.

Preferably, two side surfaces of the joint of the outer ring 242 and the inner ring 241 are respectively provided with a groove ring 244 which is recessed inwards and is in a V shape. When a gap is formed between the open end 22 and the middle ring part 32, the sealing washer 24 is pulled or extruded along with the gap, so that the open end 22 and the middle ring part 32 are always in sealing connection, water is prevented from permeating into the gap between the open end 22 and the middle ring part 32, and the sealing effect is better; the V-shaped groove 244 increases the elastic deformation of the sealing gasket 24 during the pulling or pressing of the sealing gasket 24, further enhancing the sealing effect of the sealing gasket 24.

Preferably, a fixing structure 4 is further disposed between the water outlet port 2 and the adapter 3, and the fixing structure 4 includes a first groove ring 41 disposed on an outer wall of the water outlet port 2, a plurality of first protrusions 42 disposed on an inner wall of the adapter 3 sleeved with the water outlet port 2, and a spring 43 accommodated in the first groove ring 41; the first protrusion 42 is inserted into one end of the first groove ring 41 and connected to one end of the spring 43, and the other end of the spring 43 abuts against the other end of the first groove ring 41. The adapter 3 is sleeved outside the water outlet port 2, one end of the spring 43 is fixed on the first projection 42 of the adapter 3, the other end of the spring 43 is abutted against the first groove of the water outlet port 2, the first projection 42 is inserted into the inner ring 241 of the first groove ring 41, the first projection 42 is firmly abutted against the first groove by the elasticity of the spring 43, namely, the adapter 3 is tightly connected with the water outlet port 2 by the elasticity of the spring 43; when the fire hydrant works and leads to water, the water flow acting force enables the adapter 3 and the water outlet interface 2 to generate mutual impact acting force, the spring 43 can offset a part of impact acting force and plays a role in buffering, compared with a rigid structure of the existing bolt fixing structure 4, the spring 43 connecting structure is softer, the adapter 3 and the water outlet interface 2 can be tightly connected, and the flexible connection between the adapter 3 and the water outlet interface can reduce the impact force and prolong the service life.

Preferably, the spring 43 is provided with a steel ball 44 at one end abutting the first groove ring 41. The steel ball 44 abuts against the first groove ring 41, and when the adaptor 3 drives the spring 43 to rotate, the steel ball 44 facilitates the smooth rotation of the spring 43, so as to prevent the spring 43 from being clamped in the first groove ring 41 during the rotation process, and ensure the rotation connection of the adaptor 3 on the water outlet 2.

Preferably, the first protrusion 42 is provided with a positioning post 422 capable of being sleeved with the spring 43, and a spherical portion 421 is formed at one end of the first protrusion 42 abutting against the first groove ring 41. The spring 43 is sleeved on the positioning column 422, and in the rotating process of the adapter 3, the positioning column 422 drives the spring 43 to rotate, so that the unstable connection relationship between the adapter 3 and the water outlet port 2 caused by the position deviation of the spring 43 in the rotating process is avoided, and the spherical part 421 is beneficial to the adapter 3 to rotate more smoothly and stably.

preferably, the pipe wall of the adapter 3 is provided with an insulation layer. The heat preservation can play the heat preservation effect to adapter 3 and play water interface 2, avoids adapter 3 and play water interface 2 to receive the freeze and lead to damaging.

The above embodiments and drawings do not limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be considered as departing from the scope of the present invention.

Claims (6)

1. A rotatable fire pump adapter which is characterized in that: comprises a fire hydrant body, a water outlet interface arranged on the fire hydrant body and an adapter sleeved outside the water outlet interface; the water outlet port is provided with an outwardly convex step ring at one end close to the fire hydrant body, and an open end communicated with the adapter is arranged at one end far away from the fire hydrant body; the adapter is provided with an inner ring part abutted against the step ring, a middle ring part tightly combined with the opening end and an outer end part connected with the fire hose, and a ball is arranged between the step ring and the inner ring part.

2. A rotatable fire pump coupling as claimed in claim 1, wherein: the outer end is in the shape of a smoothly curved tube.

3. A rotatable fire pump coupling as claimed in claim 1, wherein: a sealing washer is arranged between the open end and the middle ring part, the sealing washer is provided with an outer ring clamped in a gap between the open end and the middle ring part and an inner ring attached to the inner wall of the open end and the inner ring, and the outer ring is vertically arranged on the outer wall of the inner ring.

4. A rotatable fire pump coupling as claimed in claim 3, wherein: two side surfaces of the joint of the outer ring and the inner ring are respectively provided with an inclined step ring protruding outwards, and the inclined step ring is provided with an inclined surface extending from the outer ring to the inner ring.

5. A rotatable fire pump coupling as claimed in claim 4, wherein: and a V-shaped annular groove is arranged on the inclined surface.

6. A rotatable fire pump coupling as claimed in claim 3, wherein: and two side surfaces of the joint of the outer ring and the inner ring are respectively provided with an inward-sunken V-shaped groove ring.