CN216009747U

CN216009747U - Improved butterfly valve

Info

Publication number: CN216009747U
Application number: CN202120738295.8U
Authority: CN
Inventors: 吕荣贵; 林英廉
Original assignee: Fujian Zhibang Valve Co ltd
Current assignee: Fujian Zhibang Valve Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2022-03-11
Anticipated expiration: 2031-04-12

Abstract

The utility model provides an improved butterfly valve with simple structure and encryption function, which comprises a butterfly valve body, a valve cover, a valve plate and a valve rod, a sealing box is fixedly arranged on the valve cover, the valve rod is positioned in the sealing box, a rotating rod can be rotatably arranged on the sealing box in a penetrating way, one end of the rotating rod is rotatably connected with the valve rod, the other end of the valve rod penetrates out of the sealing box, a first channel is arranged between the valve rod and the rotating rod, a clamping channel communicated with the first channel is arranged between the valve rod and the rotating rod, a fixing plate is also fixedly arranged in the first channel, a clamping rod capable of penetrating into the clamping channel to drive the valve rod to be linked with the rotating rod is slidably arranged on the fixed plate, the first channel is internally provided with a pushing device used for pushing the clamping rod to be clamped into the clamping channel, and the first channel is also internally provided with a separating device used for separating the clamping rod from the clamping channel.

Description

Improved butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to an improved butterfly valve.

Background

With the development of the pipeline industry, butterfly valves are more and more widely applied to pipeline connection. The butterfly valve is installed and applied in public places or places where the butterfly valve can be opened manually. After installation, it is difficult to manage the piping facilities one by one because of the waste of labor. And because the butterfly valve is continuously improved, the butterfly valve is easier to open. Because the local crowd of installation is complicated, very easily by the maloperation or opened maliciously, cause the water waste, or cause the loss in production.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above problems, the present invention provides an improved butterfly valve with a simple structure and an encryption function.

In order to achieve the above purpose, the technical scheme of the utility model is to provide an improved butterfly valve, which comprises a butterfly valve body, a valve cover arranged above the butterfly valve body, a water inlet channel and a water outlet channel which are arranged along the radial direction of the butterfly valve body, and a valve plate arranged between the water inlet channel and the water outlet channel and used for controlling the opening and closing of fluid, wherein a valve rod is arranged above the valve plate and positioned in the butterfly valve body, a channel is arranged above the valve rod, the lower end part of the valve rod is fixedly connected with the valve plate, the upper end part of the valve rod penetrates out of the channel, a seal box is fixedly arranged on the valve cover, the valve rod is positioned in the seal box, a rotating rod is rotatably penetrated through the seal box, one end of the rotating rod is rotatably connected with the valve rod, the other end of the valve rod penetrates out of the seal box, a first channel is arranged between the valve rod and the rotating rod, and a clamping channel communicated with the first channel is arranged between the valve rod and the rotating rod, still fixedly in the first passageway being equipped with the fixed plate, slidable is equipped with the block pole that can penetrate the block passageway and make valve rod and dwang link on the fixed plate, be equipped with in the first passageway and be used for promoting the thrust unit of block pole block income block passageway still is equipped with the separator who is used for making the block pole break away from the block passageway in the first passageway.

The further improvement is that: the pushing device comprises a sliding rod, a second channel communicated with the first channel is formed in the rotating rod, the sliding rod is slidably arranged in the second channel, an inclined plane which gradually inclines from top to bottom is formed in the lower end portion of the sliding rod, a spherical bulge is fixedly arranged on the clamping rod and can be resisted with the inclined plane, and a sliding device for driving the sliding rod to slide downwards is further arranged on the rotating rod.

The further improvement is that: the sliding device comprises a gear row, the gear row is fixedly arranged on the sliding rod, a gear is rotatably arranged on the rotating rod and meshed with the gear row, and a first driving device for driving the gear to rotate is further arranged on the rotating rod.

The further improvement is that: the first driving device comprises a pressure sensor and a magnetic opening and closing rod, a third channel is formed in the rotating rod, the pressure sensor is fixedly arranged on the inner wall of the upper end portion of the third channel, an iron ball can be movably arranged in the third channel up and down through a first elastic piece, a driving motor for driving the rotation of the gear is arranged in the rotating rod, the pressure sensor is electrically connected with the driving motor, and the opening and closing rod can be arranged on the rotating rod in a penetrating mode and is linked with the rotating rod through a first linkage device.

The further improvement is that: the first linkage device is as follows: the rotating rod is provided with a square groove, and the opening and closing rod is fixedly provided with a square column matched with the square groove.

The further improvement is that: the separating device is a second elastic piece, the second elastic piece is sleeved on the clamping rod, one end of the second elastic piece is fixedly connected with the fixing plate, and the other end of the second elastic piece is fixedly connected with the spherical bulge.

The further improvement is that: and a second driving device is fixedly arranged on the opening and closing rod.

The further improvement is that: the second driving device is a rotating hand wheel.

The further improvement is that: the clamping rod is a square clamping rod, and the clamping channel is a square channel.

The further improvement is that: the first elastic piece is a first return spring, one end of the first return spring is fixedly connected with the iron ball, and the first return spring is fixedly connected with the inner wall of the third channel.

The utility model has the advantages and beneficial effects that:

the butterfly valve has the advantages that the structure is simple, the use is convenient, and if the special opening and closing rod is not arranged, the butterfly valve cannot be opened, so that the butterfly valve has a good encryption effect, the problem that the production loss or the resource waste is caused when the butterfly valve is opened by non-workers or children is avoided, and the production and public resource management is facilitated.

Drawings

Fig. 1 is a schematic partial sectional structure view of an improved butterfly valve according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic structural diagram of embodiment a of the present invention.

FIG. 3 is a schematic diagram of a structure of a clamping rod and a clamping channel according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1-3, an improved butterfly valve comprises a butterfly valve body 1, a sliding rod 14, a valve cover 3 disposed above the butterfly valve body 1, a water inlet channel and a water outlet channel radially disposed along the butterfly valve body 1, and a valve plate 2 disposed between the water inlet channel and the water outlet channel and used for controlling opening and closing of fluid, wherein a valve rod 4 is disposed above the valve plate 2 and located inside the butterfly valve body 1, a channel is disposed above the valve rod 4, a lower end of the valve rod 4 is fixedly connected with the valve plate 2, an upper end of the valve rod 4 penetrates through the channel, a seal box 5 is fixedly disposed on the valve cover 3, the valve rod 4 is located inside the seal box 5, a rotating rod 7 is rotatably disposed on the seal box 5, one end of the rotating rod 7 is rotatably connected with the valve rod 4, the other end of the valve rod 4 penetrates through the seal box 5, and a first channel 8 is disposed between the valve rod 4 and the rotating rod 7, a square clamping channel communicated with the first channel 8 is formed between the valve rod 4 and the rotating rod 7, a fixing plate 10 is fixedly arranged in the first channel 8, a clamping rod 9 capable of penetrating into the clamping channel to enable the valve rod 4 and the rotating rod 7 to be linked is slidably arranged on the fixing plate 10, a second channel 16 communicated with the first channel 8 is formed on the rotating rod 7, the sliding rod 14 is slidably arranged in the second channel 16, an inclined plane 11 which is inclined gradually from top to bottom is formed at the lower end of the sliding rod 14, a spherical bulge 13 is fixedly arranged on the clamping rod 9, the spherical bulge 13 can be abutted against the inclined plane 11, a tooth row 15 is fixedly arranged on the sliding rod 14, a gear 41 is rotatably arranged on the rotating rod 7, the gear 41 is meshed with the tooth row 15, and a first driving device for driving the gear 41 to rotate is further arranged on the rotating rod 7, the first driving device comprises a pressure sensor 20 and a magnetic opening and closing rod 6, a third channel 17 is formed in the rotating rod 7, the pressure sensor 20 is fixedly arranged on the inner wall of the upper end part of the third channel 17, an iron ball 19 can be movably arranged in the third channel 17 up and down through a first reset spring 18, one end of the first reset spring 18 is fixedly connected with the iron ball 19, the first reset spring 18 is fixedly connected with the inner wall of the third channel 17, a driving motor for driving a gear 41 to rotate is arranged in the rotating rod 7, the pressure sensor 20 is electrically connected with the driving motor, the opening and closing rod 6 can be arranged on the rotating rod 7 in a penetrating manner, a square groove 21 is formed in the rotating rod 7, a square column 61 matched with the square groove 21 is fixedly arranged on the opening and closing rod 6, a second reset spring 12 for enabling the clamping rod 9 to be separated from the clamping channel is further arranged in the first channel 8, the second return spring 12 is sleeved on the clamping rod 9, one end of the second return spring 12 is fixedly connected with the fixing plate 10, and the other end of the second return spring 12 is fixedly connected with the spherical bulge 13.

In order to facilitate the rotation of the opening and closing rod 6, a rotating hand wheel 62 is fixedly arranged on the opening and closing rod 6.

Principle of operation

When the butterfly valve is to be opened, the square column 61 on the opening and closing rod 6 is inserted into the square groove 21 of the rotating rod 7, at this time, the magnetic force on the opening and closing rod 6 attracts the iron ball 19, the iron ball 19 rises to be resisted by the pressure sensor, the first return spring 18 is stretched, the pressure sensor senses stress, an electric signal is transmitted to the driving motor, the driving motor rotates to drive the gear 41 to rotate, the gear 41 drives the gear row 15 to move downwards when rotating, further the sliding rod 14 moves downwards, the sliding rod 14 slides downwards to enable the inclined surface 11 to be resisted by the spherical bulge 13, the spherical bulge 13 is pushed, further the clamping rod 9 is driven to slide, the clamping rod 9 slides into the clamping channel to be clamped, the return spring is compressed, at this time, the opening and closing rod 6 is rotated to drive the rotating rod 7 to rotate, and the rotating rod 7 is linked with the valve rod 4 to open the butterfly valve. On the contrary, when the butterfly valve is closed, the butterfly valve is closed firstly, the opening and closing rod 6 is taken out, the iron ball 19 loses the magnetic force effect, the first return spring 18 returns to drive the iron ball 19 to return, the pressure sensor 20 is not stressed, an electric signal is sent to the driving motor, the driving motor rotates reversely to drive the gear 41 to rotate reversely, the gear 41 drives the gear row 15 to move upwards when rotating, the spherical bulge 13 and the inclined plane 11 are removed from resistance, the second return spring 12 returns to drive the clamping rod 9 to return, the clamping rod 9 is separated from the clamping channel to remove clamping, and when the rotating rod 7 is rotated, the rotating rod 7 idles. If the special opening and closing rod 6 is not arranged, the butterfly valve cannot be opened, so that the problem that non-workers or children open the butterfly valve to cause loss in production or waste of resources is avoided, and the production and public resource management is facilitated.

While there have been shown and described what are at present considered to be the fundamental principles of the utility model and its essential features and advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are included to illustrate the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The utility model provides an improved generation butterfly valve, include the butterfly valve body, set up in the valve gap of butterfly valve body top, along radial inhalant canal and the exhalant canal of seting up of butterfly valve body, set up in inhalant canal with be used for controlling the valve plate that the fluid opened and close between the exhalant canal, the valve plate top is located the inside valve rod that is equipped with of butterfly valve body, the passageway has been seted up to the valve rod top, the lower tip of valve rod with valve plate fixed connection, wear out the valve rod upper end the passageway, its characterized in that: the fixed seal box that is equipped with on the valve gap, the valve rod is located in the seal box, the dwang is worn to be equipped with in the rotatable on the seal box, dwang one end and valve rod rotatable coupling, the seal box is worn out to the valve rod other end, first passageway has been seted up between valve rod and the dwang, set up the block passageway that is linked together with first passageway between valve rod and the dwang, still fixed being equipped with the fixed plate in the first passageway, slidable is equipped with the block pole that can penetrate the block passageway and make valve rod and dwang link on the fixed plate, be equipped with in the first passageway and be used for promoting the thrust unit of block pole block passageway, still be equipped with the separator who is used for making the block pole break away from the block passageway in the first passageway.

2. An improved butterfly valve as claimed in claim 1, wherein: the pushing device comprises a sliding rod, a second channel communicated with the first channel is formed in the rotating rod, the sliding rod is slidably arranged in the second channel, an inclined plane which gradually inclines from top to bottom is formed in the lower end portion of the sliding rod, a spherical bulge is fixedly arranged on the clamping rod and can be resisted with the inclined plane, and a sliding device for driving the sliding rod to slide downwards is further arranged on the rotating rod.

3. An improved butterfly valve as claimed in claim 2, wherein: the sliding device comprises a gear row, the gear row is fixedly arranged on the sliding rod, a gear is rotatably arranged on the rotating rod and meshed with the gear row, and a first driving device for driving the gear to rotate is further arranged on the rotating rod.

4. An improved butterfly valve according to claim 3, in which: the first driving device comprises a pressure sensor and a magnetic opening and closing rod, a third channel is formed in the rotating rod, the pressure sensor is fixedly arranged on the inner wall of the upper end portion of the third channel, an iron ball can be movably arranged in the third channel up and down through a first elastic piece, a driving motor for driving the rotation of the gear is arranged in the rotating rod, the pressure sensor is electrically connected with the driving motor, and the opening and closing rod can be arranged on the rotating rod in a penetrating mode and is linked with the rotating rod through a first linkage device.

5. An improved butterfly valve according to claim 4, in which: the first linkage device is as follows: the rotating rod is provided with a square groove, and the opening and closing rod is fixedly provided with a square column matched with the square groove.

6. An improved butterfly valve as claimed in claim 1, wherein: the separating device is a second elastic piece, the second elastic piece is sleeved on the clamping rod, one end of the second elastic piece is fixedly connected with the fixing plate, and the other end of the second elastic piece is fixedly connected with the spherical bulge.

7. An improved butterfly valve according to claim 4, in which: and a second driving device is fixedly arranged on the opening and closing rod.

8. An improved butterfly valve as claimed in claim 7, wherein: the second driving device is a rotating hand wheel.

9. An improved butterfly valve as claimed in claim 1, wherein: the clamping rod is a square clamping rod, and the clamping channel is a square channel.

10. An improved butterfly valve according to claim 4, in which: the first elastic piece is a first return spring, one end of the first return spring is fixedly connected with the iron ball, and the first return spring is fixedly connected with the inner wall of the third channel.