CN208619740U

CN208619740U - A kind of fire-type ball valve

Info

Publication number: CN208619740U
Application number: CN201821147310.6U
Authority: CN
Inventors: 魏忠华
Original assignee: Tianjin Henghua Pipeline Technology Co Ltd
Current assignee: Tianjin Henghua Pipeline Technology Co Ltd
Priority date: 2018-07-19
Filing date: 2018-07-19
Publication date: 2019-03-19
Anticipated expiration: 2028-07-19

Abstract

The utility model relates to ball valve technical field, in particular a kind of fire-type ball valve, including valve body, the both ends of valve body are connected with attachment base, and the side of attachment base is provided with sealing shroud, and the side of sealing shroud is provided with sphere, the top of sphere is connected with valve rod, and the upper end of valve rod is welded with valve handle；One end of attachment base is equipped with threaded post, and one end of threaded post offers deep gouge, and deep gouge is internally provided with spring, and one end of sealing shroud is connected with gasket；The fire-type ball valve is provided with the sealing shroud of metal material between attachment base and sphere, spring is equipped between sealing shroud and attachment base, and the gasket of plastic cement material has been clamped in the front end of sealing shroud, it is bonded with sphere, prevents from revealing, after gasket fusing roasting by fire, the surface of sphere can be withstood on by the elastic force of spring by sealing shroud, continue to keep sealing state, guarantees to expand fire incident because valve can not seal before fire fighter reaches the scene of the accident.

Description

A kind of fire-type ball valve

Technical field

The utility model relates to ball valve technical field, specially a kind of fire-type ball valve.

Background technique

In China, ball valve be widely used petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, The industries such as municipal administration, steel occupy very important status in national economy.It has the movement being rotated by 90 °, and faucet body is Sphere, has circular through hole or channel by its axis, and ball valve is mainly used to make the stream for cutting off, distributing and changing medium in pipeline Dynamic direction, it only needs to be closed tightly with the rotating torque of the operation and very little that are rotated by 90 °, wherein most ball valve uses Plastic body sealing, however when encountering fire, since ball valve itself is that metal material will not be burnt out, but the plastic body sealed is Expand fire incident, in consideration of it, it is proposed that a kind of fire-type ball valve so as to cause interior media leakage by roasting fusing.

Utility model content

The purpose of this utility model is to provide a kind of fire-type ball valves, to solve ball valve mentioned above in the background art It is sealed using plastic body, is easily melted when encountering fire, interior media is caused to leak outside, fire incident is made to expand problem.

To achieve the above object, the utility model provides the following technical solutions:

A kind of fire-type ball valve, including valve body, the both ends of the valve body are connected with attachment base, and the side of the attachment base is set It is equipped with sealing shroud, the side of the sealing shroud is provided with sphere, and the top of the sphere is connected with valve rod, the upper end of the valve rod It is welded with valve handle；

One end of the attachment base is equipped with threaded post, and one end of the threaded post offers deep gouge, the inside of the deep gouge It is provided with spring, through-hole is offered at the center of the threaded post, one end of the sealing shroud and close outside offer several Connecting hole, the side of the connecting hole are connected with gasket, and the other end of the sealing shroud offers card slot, the sealing shroud Circular hole is offered at center.

Preferably, be hollow structure between the both ends of the valve body, the both ends inner wall of the valve body be equipped with screw thread and with institute It states threaded post to be connected by screw thread, the side of the sphere offers ball, and the top of the sphere is equipped with threaded hole And be connected with the valve rod by screw thread, the valve rod runs through the top of valve body.

Preferably, the gasket offers cancave cambered surface in cylindrical body and one end, offers at the center of the cancave cambered surface Counterbore, the cancave cambered surface and the sphere are engaged by clamping, and the other end of the gasket is equipped with to be engaged by clamping with the connecting hole Connecting column.

Preferably, the sealing shroud and the deep gouge are mating, and the spring is socketed in the deep gouge and the card slot Between.

Preferably, the ball and the through-hole and the circular hole and the counterbore are interconnected.

Compared with prior art, the utility model has the beneficial effects that

The fire-type ball valve is provided with the sealing shroud of metal material between attachment base and sphere, sealing shroud and attachment base it Between be equipped with spring, and be clamped the gasket of plastic cement material in the front end of sealing shroud, be bonded with sphere, prevent from revealing, work as sealing Pad can be withstood on the surface of sphere by the elastic force of spring by sealing shroud, be avoided leakage, continue to keep sealing by after the roasting fusing of fire State guarantees to expand fire incident because valve can not seal before fire fighter reaches the scene of the accident.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the connecting base structure schematic diagram in the utility model；

Fig. 3 is the sealing shroud front and back sides structural schematic diagram in the utility model；

Fig. 4 is the gasket structure schematic diagram in the utility model.

In figure: 1, valve body；2, attachment base；20, threaded post；21, deep gouge；22, spring；23, through-hole；3, sealing shroud；30, even Connect hole；31, gasket；310, cancave cambered surface；311, counterbore；312, connecting column；32, card slot；33, circular hole；4, sphere；40, ball； 5, valve rod；6, valve handle.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution:

A kind of fire-type ball valve, as shown in Figure 1, including valve body 1, the both ends of valve body 1 are connected with attachment base 2, attachment base 2 Side is provided with sealing shroud 3, and the side of sealing shroud 3 is provided with sphere 4, and the top of sphere 4 is connected with valve rod 5, the upper end of valve rod 5 It is welded with valve handle 6.

Specifically, the valve body 1 of the present embodiment, attachment base 2 and sealing shroud 3 are all made of metal material and are made into integration, gasket 31 are made of PA plastic material, i.e. nylon, heat-resisting with very high mechanical strength, wear-resistant, preferably play sealing effect Fruit.

It further, is hollow structure between the both ends of valve body 1, the both ends inner wall of valve body 1 is equipped with screw thread and and threaded post 20 are connected by screw thread, and the side of sphere 4 offers ball 40, and the top of sphere 4 is equipped with threaded hole and leads to valve rod 5 It crosses screw thread to be connected, valve rod 5 runs through the top of valve body 1, preferably connects ball valve 4, and drive rotation.

In specific implementation, it is sealed due to most ball valve sealing set using plastic cement, easily melts, lose close when encountering fire Effect is sealed, causes fire to expand in order to avoid the leakage of medium in pipe, the present inventor makes and changing to attachment base 2 and sealing shroud 3 Into as a kind of preferred embodiment, as shown in Figure 2, Figure 3 and Figure 4, one end of attachment base 2 is equipped with threaded post 20, threaded post 20 One end offers deep gouge 21, and deep gouge 21 is internally provided with spring 22, through-hole 23, sealing shroud are offered at the center of threaded post 20 3 one end and offer several connecting holes 30 close to outside, the side of connecting hole 30 is connected with gasket 31, sealing shroud 3 it is another One end offers card slot 32, and circular hole 33 is offered at the center of sealing shroud 3.

Specifically, gasket 31 offers cancave cambered surface 310 in cylindrical body and one end, offered at the center of cancave cambered surface 310 Counterbore 311, cancave cambered surface 310 and sphere 4 are engaged by clamping, and the other end of gasket 31 is equipped with the connection being engaged by clamping with connecting hole 30 Column 312 can play better seal effect.

Further, sealing shroud 3 and deep gouge 21 are mating, and spring 22 is socketed between deep gouge 21 and card slot 32, make bullet Spring 22 is compressed wherein, when pad 31 to be sealed melts, produces gap, just discharges elastic force and sealing shroud 3 is pushed to head on gasket 31, Keep sealing effect.

In addition to this, ball 40 and through-hole 23 and circular hole 33 and counterbore 311 are interconnected, and make internal flow of media.

For the fire-type ball valve of the present embodiment when encountering fire, only gasket 31 is plastic cement material, remaining is metal Material, when gasket 31 is slowly baked fusing, can will generate gap, while being tightly fitted in gasket to avoid being burned 31 side sealing shroud 3 can be pushed by the elastic force of spring 22, and be squeezed on the surface of the gasket 31 and sphere 4 that are melting, Sealing state is continued to, the leakage of interior media is avoided, is guaranteed before fire fighter reaches the scene of the accident, not because of valve Door can not seal and expand fire incident.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. the both ends of a kind of fire-type ball valve, including valve body (1), the valve body (1) are connected with attachment base (2), the attachment base (2) side is provided with sealing shroud (3), and the side of the sealing shroud (3) is provided with sphere (4), and the top of the sphere (4) connects It is connected to valve rod (5), the upper end of the valve rod (5) is welded with valve handle (6), it is characterised in that: one end of the attachment base (2) is equipped with One end of threaded post (20), the threaded post (20) offers deep gouge (21), and the deep gouge (21) is internally provided with spring (22), it offers through-hole (23), one end of the sealing shroud (3) and offers close to outside at the center of the threaded post (20) The side of several connecting holes (30), the connecting hole (30) is connected with gasket (31), and the other end of the sealing shroud (3) opens up Have card slot (32), offers circular hole (33) at the center of the sealing shroud (3).

2. fire-type ball valve according to claim 1, it is characterised in that: be hollow knot between the both ends of the valve body (1) Structure, the both ends inner wall of the valve body (1) are equipped with screw thread and are connected with the threaded post (20) by screw thread, the sphere (4) Side offer ball (40), the top of the sphere (4) is equipped with threaded hole and passes through screw thread phase with the valve rod (5) Connection, the valve rod (5) run through the top of valve body (1).

3. fire-type ball valve according to claim 2, it is characterised in that: the gasket (31) is opened in cylindrical body and one end Equipped with cancave cambered surface (310), offered counterbore (311) at the center of the cancave cambered surface (310), the cancave cambered surface (310) with it is described Sphere (4) is engaged by clamping, and the other end of the gasket (31) is equipped with the connecting column being engaged by clamping with the connecting hole (30) (312)。

4. fire-type ball valve according to claim 1, it is characterised in that: the sealing shroud (3) and the deep gouge (21) are inserted Cooperation is connect, the spring (22) is socketed between the deep gouge (21) and the card slot (32).

5. fire-type ball valve according to claim 3, it is characterised in that: the ball (40) and the through-hole (23) and institute Circular hole (33) and the counterbore (311) are stated to be interconnected.