CN211820894U

CN211820894U - Multifunctional one-way valve

Info

Publication number: CN211820894U
Application number: CN202020502591.3U
Authority: CN
Inventors: 蔡昭; 印慧林; 赵开文
Original assignee: Shanghai Reti Fire Fighting Equipment Co ltd
Current assignee: Shanghai Reti Fire Fighting Equipment Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-10-30
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a multifunctional one-way valve, which comprises a valve body, wherein a valve core guide sleeve is arranged in a sliding fit manner in a cavity, a valve core is sleeved outside the valve core guide sleeve in a sliding manner, a first sealing ring is fixed on the periphery of the valve core close to a conical surface through a valve core nut, a short conduit is arranged in the valve core guide sleeve, a positioning nut is arranged at a gas outlet end in a screwing manner, a spring is arranged between the positioning nut and the valve core nut, a conduit locking nut is arranged on the positioning nut in a screwing manner, one end of the short conduit is matched and connected with the conduit locking nut, and the other end of the short conduit penetrates through a; the outer end of the guide pipe locking nut is connected with a long guide pipe which is concentric with and communicated with the short guide pipe, the outer part of the long guide pipe is sleeved with a floating barrel in a sliding manner, a magnet sleeve is arranged in the long guide pipe in a sliding manner, a magnet is fixedly arranged in the magnet sleeve, and the inner side of the bottom end of the floating barrel is provided with an induction iron ring; the end part of the magnet sleeve is connected with a traction rope, a color code is arranged on the traction rope, and the traction rope penetrates through the long catheter and the short catheter.

Description

Multifunctional one-way valve

Technical Field

The utility model relates to a supporting spare part technical field of fire-fighting equipment specifically is a multi-functional check valve.

Background

At present, an external pressure storage type gas fire-fighting system is generally used for separately storing fire-extinguishing medium in a pressure-resistant container in a normal pressure mode, when a fire disaster occurs, high-pressure gas (generally nitrogen) is led in from a one-way valve arranged on the pressure-resistant container through a pipeline to pressurize the fire-extinguishing medium, so that the fire-extinguishing medium is sprayed out from a fire-extinguishing medium spraying pipeline, and the fire disaster is extinguished. Because the fire extinguishing medium is stored in a normal pressure mode, and the pressure indicator mode cannot be adopted to detect whether the fire extinguishing medium leaks or not in the storage process, at present, a weighing method is usually adopted to carry out periodic inspection, namely, the initial weight of the container filled with the fire extinguishing medium is recorded, when the inspection period is up, the container is moved to an electronic scale or other weighing apparatuses to carry out weighing, and the data obtained by the weighing is compared with the initial weight to check whether the leakage exists or not.

Disclosure of Invention

An object of the utility model is to provide a multi-functional check valve, through setting up flotation pontoon, response hoop, magnet and having the haulage rope of color code, the storage change condition of fire extinguishing medium in the inspection container that can be convenient is examined with the fire extinguishing medium storage and is looked as an organic whole with the check valve, has simple structure, convenient operation, and the problem among the prior art has been solved to the advantage that the practicality is good.

In order to achieve the above object, the utility model provides a following technical scheme: a multifunctional one-way valve comprises a valve body 1, wherein a cavity 105 is arranged on the valve body 1 in a penetrating manner, one end of the cavity 105 is a checking end 106, the other end of the cavity 105 is an air outlet end 104, an air inlet interface 101 communicated with the cavity 105 is arranged in the middle of the valve body 1, a valve seat part 102 is arranged in the cavity 105 and positioned at the air inlet interface 101 and the air outlet end 104, and a tapered surface 103 is arranged on one side, close to the air outlet end 104, of the valve seat part 102;

a valve core guide sleeve 4 is arranged in the cavity 105 in a sliding fit mode, a valve core 3 is sleeved outside the valve core guide sleeve 4 in a sliding fit mode, a first sealing ring 17 is fixed on the periphery, close to the conical surface 103, of the valve core 3 through a valve core nut 16, a short guide pipe 5 is arranged in the valve core guide sleeve 4, a positioning nut 15 is arranged at the air outlet end 104 in a screwing mode, a spring 2 is arranged between the positioning nut 15 and the valve core nut 16, a guide pipe locking nut 14 is arranged on the positioning nut 15 in a screwing mode, one end of the short guide pipe 5 is connected with the guide pipe locking nut 14 in a matching mode, and the other end of the short guide pipe 5 penetrates through a short guide pipe joint 19 and is fixedly connected with a viewing end; the outer end of the guide pipe locking nut 14 is connected with a long guide pipe 13 which is concentric with and communicated with the short guide pipe 5, the outer side of the long guide pipe 13 is sleeved with a floating barrel 6 in a sliding manner, a magnet sleeve 10 is arranged in the long guide pipe 13 in a sliding manner, a magnet 11 is fixedly arranged in the magnet sleeve 10, and the inner side of the bottom end of the floating barrel 6 is provided with an induction iron ring 7; the end part of the magnet sleeve 10 is connected with a pulling rope 12, the pulling rope 12 is provided with a color mark 1201, and the pulling rope 12 penetrates through the long catheter 13 and the short catheter 5.

Further: the cavity 105 is provided with a sealing section 107 between the inspection end 106 and the air inlet port 101.

Further: a flange part 401 is arranged on the outer wall of the valve core guide sleeve 4, and a second sealing ring 18 is arranged between the flange part 401 and the valve core 3.

Further: the end of the long guide pipe 13 is provided with a baffle plate 8, and the baffle plate 8 is fixedly connected with the long guide pipe 13 through a bolt 9.

Further: a plurality of through holes 1501 are uniformly distributed on the positioning nut 15.

Further: the end of the inspection end 106 is screwed with a valve cover 20, the short conduit joint 19 is provided with an accommodating cavity 1901, a handle 21 is movably arranged in the accommodating cavity 1901, and the handle 21 is connected with the traction rope 12.

Further: the color patch 1201 is provided in plurality.

Further: third sealing rings 22 are arranged between the short guide pipe joint 19 and the valve core guide sleeve 4 and the sealing section 107.

The utility model discloses a theory of operation and beneficial effect: the utility model provides a multifunctional one-way valve, install the upper end of the pressure vessel storing fire extinguishing medium during the use, and stretch into the vessel vertically with the one end of the long pipe that is equipped with the flotation pontoon, push away the magnet cover to the bottom of long pipe with the non-magnetism tool bar after installing, make magnet locate under the induction hoop, in receiving the haulage rope of connecting the magnet cover into short pipe and long pipe, put into the holding chamber and spin on the valve gap with the handle; after the container is filled with fire extinguishing medium, the buoy floats upwards, the magnet sleeve is still kept at the bottom of the long guide pipe, at the moment, the valve cover is loosened, the pull rope is pulled out by lifting the handle, the magnet sleeve rises along the long guide pipe, when the magnet sleeve rises to the position of the buoy, the magnet and the induction iron ring attract each other, the pull rope can find obvious hysteresis, at the moment, the position of the color code relative to the inspection port surface is marked, or a new color code is drawn, the initial position is calibrated, then the pull rope is stored back into the short guide pipe and the long guide pipe, and the valve cover is screwed on; in the process of storing the fire extinguishing medium, when the time specified by the inspection period is reached, the valve cover is loosened, the pull handle is lifted up to pull out the traction rope, so that the magnet sleeve ascends along the long guide pipe, when the traction rope finds obvious retardation, the position of an initial calibrated color code relative to the inspection port surface is observed, and if the color code is lower than the inspection port surface and exceeds the allowable degree, the fire extinguishing medium needs to be supplemented; has the advantages of easy and convenient inspection operation; in the process of storage or fire-fighting duty, the spring tightly supports the valve core on the conical surface, the first sealing ring is in sealing contact with the conical surface, the second sealing ring completes the sealing contact of the valve core guide sleeve and the valve core, and the air inlet interface and the air outlet end are disconnected, so that the fire-fighting medium is prevented from leaking, and the sealing effect is good; when a fire disaster occurs, high-pressure gas enters from the air inlet interface to push the valve element to move downwards, the one-way valve is opened, the high-pressure gas enters the fire extinguishing medium container from the through hole formed in the positioning nut at the air outlet end to pressurize the fire extinguishing medium in the container, so that the fire extinguishing medium is sprayed out from the spraying pipeline to extinguish the fire disaster, and the reliability and the sealing performance are good.

Drawings

Fig. 1 is a sectional view of the structure of the present invention.

Fig. 2 is a partial perspective view of the structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a multifunctional check valve includes a valve body 1, a cavity 105 is disposed on the valve body 1 in a penetrating manner, one end of the cavity 105 is a viewing end 106, and the other end is an air outlet end 104, an air inlet 101 communicated with the cavity 105 is disposed in the middle of the valve body 1, a valve seat 102 is disposed in the cavity 105 and located at the air inlet 101 and the air outlet end 104, and a tapered surface 103 is disposed on one side of the valve seat 102 near the air outlet end 104;

a valve core guide sleeve 4 is arranged in the cavity 105 in a sliding fit mode, a valve core 3 is sleeved outside the valve core guide sleeve 4 in a sliding fit mode, a first sealing ring 17 is fixed on the periphery, close to the conical surface 103, of the valve core 3 through a valve core nut 16, a short guide pipe 5 is arranged in the valve core guide sleeve 4, a positioning nut 15 is arranged at the air outlet end 104 in a screwing mode, a spring 2 is arranged between the positioning nut 15 and the valve core nut 16, a guide pipe locking nut 14 is arranged on the positioning nut 15 in a screwing mode, one end of the short guide pipe 5 is connected with the guide pipe locking nut 14 in a matched mode, and the other end of the short guide pipe 5 penetrates through a; the outer end of the guide pipe locking nut 14 is connected with a long guide pipe 13 which is concentric with and communicated with the short guide pipe 5, the outer side of the long guide pipe 13 is sleeved with a floating barrel 6 in a sliding way, a magnet sleeve 10 is arranged in the long guide pipe 13 in a sliding way, a magnet 11 is fixedly arranged in the magnet sleeve 10, and the inner side of the bottom end of the floating barrel 6 is provided with an induction iron ring 7; the end part of the magnet sleeve 10 is connected with a pulling rope 12, the pulling rope 12 is provided with a color mark 1201, and the pulling rope 12 penetrates through the long catheter 13 and the short catheter 5.

Preferably: the chamber body 105 is provided with a sealing section 107 between the viewing end 106 and the air inlet interface 101.

Preferably: the outer wall of the valve core guide sleeve 4 is provided with a flange part 401, and a second sealing ring 18 is arranged between the flange part 401 and the valve core 3.

Preferably: the separation blade 8 is arranged at the tail end of the long guide pipe 13, and the separation blade 8 is fixedly connected with the long guide pipe 13 through a bolt 9 so as to prevent the buoy 6 from separating from the long guide pipe and ensure the normal work of the buoy 6.

Preferably: a plurality of through holes 1501 are uniformly formed in the positioning nut 15 to allow compressed gas, typically nitrogen, to smoothly enter the fire-extinguishing medium storage container.

Preferably: in order to increase the safety of the multifunctional one-way valve and protect the traction rope 12, the end part of the inspection end 106 is screwed with a valve cover 20; the short conduit joint 19 is provided with an accommodating cavity 1901, a handle 21 is movably arranged in the accommodating cavity 1901, the handle 21 is connected with the traction rope 12, the traction rope 12 can be conveniently pulled out by arranging the handle 21, and the operability is good; the handle 21 is placed in the accommodating cavity 1901 to prevent the handle 21 from being exposed outside, and the valve cover 20 is matched to protect the handle 21 and the traction 12 and has the effect of preventing misoperation.

Preferably: for the convenience of identification, a plurality of color patches 1201 are arranged on the hauling rope 12, the distance between the color patches can be equal or variable according to the shape of the storage container of the fire extinguishing medium, and the color patches 1201 can be newly arranged when the capacity position of the fire extinguishing medium is calibrated for the first time as an embodiment.

Preferably: to prevent leakage of the inspection end 106, a third seal ring 22 is provided between the short pipe joint 19 and the valve core guide 4 and the seal segment 107.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A multifunctional one-way valve is characterized in that: the valve comprises a valve body (1), a cavity (105) is arranged on the valve body (1) in a penetrating manner, one end of the cavity (105) is a viewing end (106), the other end of the cavity (105) is an air outlet end (104), an air inlet interface (101) communicated with the cavity (105) is arranged in the middle of the valve body (1), a valve seat part (102) is arranged in the cavity (105) and positioned at the air inlet interface (101) and the air outlet end (104), and a tapered surface (103) is arranged on one side, close to the air outlet end (104), of the valve seat part (102);

a valve core guide sleeve (4) is arranged in the cavity (105) in a sliding fit mode, a valve core (3) is sleeved outside the valve core guide sleeve (4) in a sliding fit mode, a first sealing ring (17) is fixed on the periphery, close to the conical surface (103), of the valve core (3) through a valve core nut (16), a short guide pipe (5) is arranged in the valve core guide sleeve (4), a positioning nut (15) is arranged at the air outlet end (104) in a screwing mode, a spring (2) is arranged between the positioning nut (15) and the valve core nut (16), a guide pipe locking nut (14) is arranged on the positioning nut (15) in a screwing mode, one end of the short guide pipe (5) is connected with the guide pipe locking nut (14) in a matched mode, and the other end of the short guide pipe (5) penetrates through a short guide pipe joint (19) and is fixedly connected with an inspection end; the outer end of the guide pipe locking nut (14) is connected with a long guide pipe (13) which is concentric with and communicated with the short guide pipe (5), the long guide pipe (13) is sleeved with a buoy (6) in a sliding manner, a magnet sleeve (10) is arranged in the long guide pipe (13) in a sliding manner, a magnet (11) is fixedly arranged in the magnet sleeve (10), and the inner side of the bottom end of the buoy (6) is provided with an induction iron ring (7); the end of the magnet sleeve (10) is connected with a pulling rope (12), a color mark (1201) is arranged on the pulling rope (12), and the pulling rope (12) penetrates through the long catheter (13) and the short catheter (5).

2. The multi-functional check valve of claim 1, wherein: a sealing section (107) is arranged between the inspection end (106) and the air inlet interface (101) of the cavity (105).

3. The multi-functional check valve of claim 1, wherein: and a flange part (401) is arranged on the outer wall of the valve core guide sleeve (4), and a second sealing ring (18) is arranged between the flange part (401) and the valve core (3).

4. The multi-functional check valve of claim 1, wherein: the tail end of the long guide pipe (13) is provided with a baffle plate (8), and the baffle plate (8) is fixedly connected with the long guide pipe (13) through a bolt (9).

5. The multi-functional check valve of claim 1, wherein: a plurality of through holes (1501) are uniformly distributed on the positioning nut (15).

6. The multi-functional check valve of claim 1, wherein: the end part of the inspection end (106) is screwed with a valve cover (20), the short pipe joint (19) is provided with an accommodating cavity (1901), a handle (21) is movably arranged in the accommodating cavity (1901), and the handle (21) is connected with the traction rope (12).

7. The multi-functional check valve of claim 1, wherein: the color code (1201) is provided in plurality.

8. A multi-function, one-way valve, as defined in claim 2, wherein: and third sealing rings (22) are respectively arranged between the short pipe joint (19) and the sealing section (107) and between the valve core guide sleeve (4).