CN211082881U

CN211082881U - Butterfly valve

Info

Publication number: CN211082881U
Application number: CN201922289207.6U
Authority: CN
Inventors: 李铭良; 李良福
Original assignee: Quanwatts Valves Co ltd
Current assignee: Quanwatts Valves Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-07-24
Anticipated expiration: 2029-12-18

Abstract

The utility model provides a butterfly valve which can effectively prevent the loss caused by the non-professional person opening the butterfly valve, comprising a butterfly valve body and a valve rod, a first channel is arranged above the butterfly valve body, the upper end part of the valve rod penetrates out of the first channel, an opening and closing chamber communicated with a first channel is arranged in the upper part of the butterfly valve body, the upper end part of the valve rod is positioned in the opening and closing chamber, a first bevel gear ring is fixedly arranged at the upper end part of the valve rod, an opening and closing rod can be slidably arranged in the opening and closing chamber in a penetrating way, a second bevel gear ring which can be meshed with the first bevel gear ring is fixedly arranged at the lower end part of the opening and closing rod, the upper end part of the opening and closing rod penetrates out of the butterfly valve body, the opening and closing rod is provided with a first limit ring, the butterfly valve body is positioned in the opening and closing chamber and is provided with a limit ball clamped with the first limit ring in a sliding way, the butterfly valve body is also internally provided with an opening and closing device which can open and close the limit ball and the first limit ring.

Description

Butterfly valve

Technical Field

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

Background

With the development of society, pipeline connection is required in both production and life. In the pipe connection, the pipe connection is required to be applied to, wherein a butterfly valve is one of the frequently used pipe connections. Due to advances in technology and continual improvements in butterfly valves, the butterfly valve is opened and easily accomplished. Although convenient for the operator, there are risks. In production or life, if the butterfly valve is opened by non-professional personnel, immeasurable loss in production or waste of public resources in public places can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a butterfly valve, can prevent effectively that non-professional from opening the butterfly valve and causing the loss.

In order to achieve the above object, the present invention provides a butterfly valve, including a butterfly valve body, a valve cover disposed on the butterfly valve body, a water inlet channel and a water outlet channel radially disposed along the butterfly valve body, a valve plate disposed between the water inlet channel and the water outlet channel for controlling opening and closing of fluid, a valve rod disposed inside the butterfly valve body above the valve plate, a first channel disposed above the butterfly valve body, a lower end of the valve rod fixedly connected to the valve plate, an upper end of the valve rod extending out of the first channel, an opening and closing chamber disposed above the butterfly valve body and communicating with the first channel, an upper end of the valve rod disposed in the opening and closing chamber, a first inclined gear ring fixed on the upper end of the valve rod, an opening and closing rod slidably disposed in the opening and closing chamber, a second inclined gear ring fixed on the lower end of the opening and closing rod and engageable with the first inclined gear ring, the upper end of the opening and closing rod penetrates out of the butterfly valve body, a first limiting ring is arranged on the opening and closing rod, a limiting ball clamped with the first limiting ring is slidably arranged in the opening and closing chamber of the butterfly valve body, and an opening and closing device capable of opening and closing the clamping of the limiting ball and the first limiting ring is further arranged in the butterfly valve body.

The further improvement is that: the opening and closing device comprises a plurality of limiting rods, a cavity communicated with the opening and closing chamber is formed in the butterfly valve body, the butterfly valve body is located in the cavity, a fixed sleeve is fixedly arranged in the cavity, the limiting rods penetrate through the fixed sleeve, two ends of the fixed sleeve penetrate out of the fixed sleeve, a rotary disc is rotatably arranged on the butterfly valve body, an inclined plane capable of pushing the limiting rods is formed in the rotary disc, one end of each limiting rod is resisted by the inclined plane, a limiting ball is fixedly arranged at the other end of each limiting rod, and a reset device used for pushing out the opening and closing rods to reset is further arranged on each limiting rod.

The further improvement is that: the reset device comprises a reset spring, the limiting rod is located in the fixed sleeve, a sliding block is sleeved in the fixed sleeve, the sliding block can be slidably arranged in the fixed sleeve, one end of the reset spring is fixedly connected with the inner wall of the fixed sleeve, and the other end of the reset spring is fixedly connected with the sliding block.

The further improvement is that: the reset spring is sleeved on the limiting rod.

The further improvement is that: and a compression spring is fixedly connected between the first bevel gear ring and the second bevel gear ring.

The further improvement is that: and a second limiting ring clamped with the limiting ball is arranged on the opening and closing rod.

The further improvement is that: and a hand wheel is fixedly arranged at the upper end part of the opening and closing rod, and a rotating rod is fixedly arranged on the hand wheel.

The utility model has the advantages and the beneficial effects that:

1. when the butterfly valve is opened, the non-professional personnel can be prevented from directly rotating the valve rod to open the butterfly valve through the matching of the rotating disc, the first bevel gear ring, the second bevel gear ring and other parts, and the loss in production and the waste of resources are avoided.

2. The compression spring is favorable for returning the opening and closing rod, and the second limiting ring can be clamped with the limiting ball when the first bevel gear ring is meshed with the second bevel gear ring, so that the working personnel can rotate the opening and closing rod conveniently to open the butterfly valve.

Drawings

Fig. 1 is the embodiment of the present invention, which is a schematic view of a butterfly valve with a partially cut structure.

Fig. 2 is a schematic sectional structure view of embodiment a-a of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. 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. 1-2, a butterfly valve comprises a butterfly valve body 1, a valve cover 3 disposed on 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 for controlling opening and closing of a fluid, wherein a valve rod 4 is disposed above the valve plate 2 and inside the butterfly valve body 1, a first channel is disposed above the butterfly valve body 1, a lower end of the valve rod 4 is fixedly connected to the valve plate 2, an upper end of the valve rod 4 penetrates through the first channel, an opening and closing chamber 6 communicating with the first channel is disposed above the butterfly valve body 1, an upper end of the valve rod 4 is disposed in the opening and closing chamber 6, a first bevel gear ring 5 is fixed to an upper end of the valve rod 4, an opening and closing rod 12 is slidably disposed in the opening and closing chamber 6, a second bevel gear ring 9 engageable with the first bevel gear ring 5 is fixed to a lower end of the opening and closing rod, the upper end of the opening and closing rod 12 penetrates out of the butterfly valve body 1, the opening and closing rod 12 is provided with a first limiting ring 10, the butterfly valve body 1 is positioned in the opening and closing chamber 6 and can be slidably provided with a limiting ball 7 clamped with the first limiting ring 10, a cavity communicated with the opening and closing chamber 6 is formed in the butterfly valve body 1, the butterfly valve body 1 is positioned in the cavity and is fixedly provided with a fixing sleeve 17, a limiting rod 18 penetrates through the fixing sleeve 17, two ends of the limiting rod pass through the fixing sleeve 17, the butterfly valve body 1 is rotatably provided with a turntable 15, the turntable 15 is provided with an inclined plane 151 capable of pushing the limiting rod 18, one end of the limiting rod 18 is abutted against the inclined plane 151, the limiting ball 7 is fixedly arranged at the other end of the limiting rod 18, the limiting rod 18 is positioned in the fixing sleeve 17, the fixing sleeve 17 is provided with a sliding block 16, and the sliding block 16 can be slidably, the limiting rod 18 is sleeved with a return spring 19, one end of the return spring 19 is fixedly connected with the inner wall of the fixed sleeve 17, and the other end of the return spring 19 is fixedly connected with the sliding block 16.

In order to facilitate the return of the opening and closing rod 12, a compression spring 8 is fixedly connected between the first bevel gear ring 5 and the second bevel gear ring 9. The compression spring 8 is able to push the opening and closing rod 12 upwards, returning it back after the valve has opened.

In order to facilitate the rotation of the opening and closing rod 12 for opening the butterfly valve, the opening and closing rod 12 is provided with a second limiting ring 11 clamped with the limiting ball 7. The second spacing ring 11 can be in the meshing of first bevel gear ring 5 and second bevel gear ring 9 time with spacing ball 7 block, restriction compression spring 8, make things convenient for the staff to rotate the opening and closing rod 12 and open the valve.

In order to facilitate the rotation of the opening and closing rod 12, a hand wheel 13 is fixedly arranged at the upper end of the opening and closing rod 12, and a rotating rod 14 is fixedly arranged on the hand wheel 13.

The working principle is as follows:

when the butterfly valve is to be opened, the rotating disc 15 is rotated anticlockwise, the return spring 19 in the fixed sleeve 17 is elastically returned, the limiting rod 18 is driven to move from the top end of the inclined surface 151 to the bottom end of the inclined surface 151, the limiting ball 7 is driven to be disengaged from the first limiting ring 10, the opening and closing rod 12 is pressed at the moment, the second inclined gear ring 9 on the opening and closing rod 12 is meshed with the first inclined gear ring 5 on the valve rod 4, and the compression spring 8 is compressed. Then, the turntable 15 is rotated clockwise, the limiting rod 18 is pushed out from the bottom end of the inclined plane 151 to the top end of the inclined plane 151 under the action of the inclined plane 151 of the turntable 15, so that the limiting ball 7 is clamped with the second limiting ring 11, the opening and closing rod 12 is positioned, and the return spring 19 in the fixed sleeve 17 is stretched at the moment. Finally, the hand wheel 13 is rotated to open the butterfly valve. After the butterfly valve is closed, the engagement between the stop ball 7 and the second stop ring 11 is released by the similar operation, the compression spring 8 elastically returns to eject the open/close rod 12, and then the stop ball 7 engages with the first stop ring 10 to position the open/close rod 12, so that the butterfly valve returns to its original shape.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents.

Claims

1. The utility model provides a butterfly valve, includes the butterfly valve body, set up in valve gap on the butterfly valve body, 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, first passageway has been seted up to butterfly valve body top, the lower tip of valve rod with valve plate fixed connection, wear out the valve rod upper end first passageway, its characterized in that: the butterfly valve comprises a butterfly valve body and is characterized in that an opening and closing chamber communicated with a first channel is formed in the upper portion of the butterfly valve body, the upper end portion of a valve rod is located in the opening and closing chamber, a first inclined gear ring is fixedly arranged at the upper end portion of the valve rod, an opening and closing rod is arranged in the opening and closing chamber in a sliding mode in a penetrating mode, a second inclined gear ring meshed with the first inclined gear ring is fixedly arranged at the lower end portion of the opening and closing rod, the upper end portion of the opening and closing rod penetrates out of the butterfly valve body, a first limiting ring is arranged on the opening and closing rod, the butterfly valve body is located in the opening and closing chamber and is provided with a limiting ball clamped with the first limiting ring in a sliding mode, and an opening.

2. A butterfly valve in accordance with claim 1, wherein: the opening and closing device comprises a plurality of limiting rods, a cavity communicated with the opening and closing chamber is formed in the butterfly valve body, the butterfly valve body is located in the cavity, a fixed sleeve is fixedly arranged in the cavity, the limiting rods penetrate through the fixed sleeve, two ends of the fixed sleeve penetrate out of the fixed sleeve, a rotary disc is rotatably arranged on the butterfly valve body, an inclined plane capable of pushing the limiting rods is formed in the rotary disc, one end of each limiting rod is resisted by the inclined plane, a limiting ball is fixedly arranged at the other end of each limiting rod, and a reset device used for pushing out the opening and closing rods to reset is further arranged on each limiting rod.

3. A butterfly valve in accordance with claim 2, wherein: the reset device comprises a reset spring, the limiting rod is located in the fixed sleeve, a sliding block is sleeved in the fixed sleeve, the sliding block can be slidably arranged in the fixed sleeve, one end of the reset spring is fixedly connected with the inner wall of the fixed sleeve, and the other end of the reset spring is fixedly connected with the sliding block.

4. A butterfly valve in accordance with claim 3, wherein: the reset spring is sleeved on the limiting rod.

5. A butterfly valve in accordance with claim 1, wherein: and a compression spring is fixedly connected between the first bevel gear ring and the second bevel gear ring.

6. A butterfly valve in accordance with claim 1, wherein: and a second limiting ring clamped with the limiting ball is arranged on the opening and closing rod.

7. A butterfly valve in accordance with claim 1, wherein: and a hand wheel is fixedly arranged at the upper end part of the opening and closing rod, and a rotating rod is fixedly arranged on the hand wheel.