CN214838456U

CN214838456U - Butterfly valve with prevent opening

Info

Publication number: CN214838456U
Application number: CN202023227045.2U
Authority: CN
Inventors: 吴建南; 董艳
Original assignee: Fujian Deliang Valve Manufacturing Co ltd
Current assignee: Fujian Deliang Valve Manufacturing Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-11-23
Anticipated expiration: 2030-12-28

Abstract

The utility model provides a butterfly valve with simple structure and encryption function, which is capable of preventing opening, and comprises a gate valve body, a valve cover, a water inlet channel and a water outlet channel which are arranged along the radial direction of the gate valve body, a valve plate and a valve rod, a first channel is arranged above the gate valve body, the lower end part of the valve rod is fixedly connected with the valve plate, the upper end of the valve rod penetrates through the first channel and is positioned outside the valve cover, a sealing box is fixedly arranged on the valve cover, a rotating rod with the same diameter as the valve rod is rotatably arranged on the sealing box in a penetrating way, one end of the rotating rod is positioned on the upper end surface of the valve rod, the other end of the rotating rod penetrates out of the seal box, a linkage device is arranged between the rotating rod and the valve rod, but the slidable is equipped with first bevel gear ring on the dwang, fixed being equipped with on the seal box can with first bevel gear ring engaged with second bevel gear ring, still be equipped with on the dwang and be used for making the gliding slider of first bevel gear ring.

Description

Butterfly valve with prevent opening

Technical Field

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

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. The installation place is complicated and is easy to open, so that water resource waste or production loss is caused.

SUMMERY OF THE UTILITY MODEL

Therefore, to the above-mentioned problem, the utility model provides a simple structure, have one kind of encryption function have prevent the butterfly valve opened.

In order to achieve the above object, the technical solution of the present invention is to provide an opening-proof butterfly valve, which comprises a gate valve body, a first baffle, a second baffle, a valve cover disposed on the gate valve body, a water inlet channel and a water outlet channel radially disposed along the gate valve body, and a valve plate disposed between the water inlet channel and the water outlet channel for controlling the opening and closing of fluid, wherein a valve rod is disposed above the valve plate and inside the gate valve body, a first channel is disposed above the gate valve body, a lower end of the valve rod is fixedly connected to the valve plate, an upper end of the valve rod penetrates out of the valve cover, a first channel and a second channel are disposed at two ends of an inner wall of the water inlet channel, the first baffle and the second baffle are slidably disposed in the first channel and the second channel, and the first baffle and the second baffle are disposed in a staggered manner, and a waterproof hammer device for reducing water flow impact is arranged between the first baffle and the second baffle.

The further improvement is that: the waterproof hammer device comprises a first elastic piece and a second elastic piece, one end of the first elastic piece is fixedly connected with a first baffle, the other end of the first elastic piece is fixedly connected with the inner wall of a first channel, one end of the second elastic piece is fixedly connected with a second baffle, the other end of the second elastic piece is fixedly connected with the inner wall of a second channel, and a stretching device for stretching the first elastic piece and the second elastic piece is arranged between the first baffle and the second baffle.

The further improvement is that: the stretching device is as follows: a first magnet is arranged in the first baffle, and a second magnet attracted with the first magnet is arranged in the second baffle.

The further improvement is that: a first guide plate is fixedly arranged on the first baffle, and a first inclined plane which inclines from the middle to two ends is arranged on the first guide plate.

The further improvement is that: and a second guide plate is fixedly arranged on the second baffle plate, and a second inclined plane which inclines from the middle to two ends is arranged on the second guide plate.

The further improvement is that: a first fixing rod is fixedly arranged in the first channel, and the first baffle plate is slidably arranged on the first fixing rod in a penetrating mode.

The further improvement is that: and a second fixed rod is fixedly arranged in the second channel, and the second baffle plate is slidably arranged on the second fixed rod in a penetrating manner.

The further improvement is that: and a rotating hand wheel is fixedly arranged on the valve rod.

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

1. simple structure and good encryption effect. When will open the butterfly valve, need rotate outside conventional rotation nut and drive the protruding looks block of card on the screw rod messenger sliding block and the meshing of removing first bevel gear and the oblique ring gear of second with the draw-in groove, then just can rotate the dwang, drive the valve rod and open the butterfly valve, it is complicated to open the procedure, and have fine hidden effect, if non-staff can't open the butterfly valve, avoided the butterfly valve to be opened by other people maliciously, cause the loss in production and the waste of public resource.

2. The butterfly valve has good encryption effect, is beneficial to public management of water resources in a community, and prevents other people from stealing water.

Drawings

Fig. 1 is a schematic view of a partially cut-open structure of a butterfly valve with opening prevention 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 view of a rotating handwheel structure according to an embodiment 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. 1-3, an opening-proof butterfly valve includes a gate valve body 1, a valve cover 2 disposed on the gate valve body 1, a water inlet channel and a water outlet channel radially disposed along the gate valve body 1, a valve plate 3 disposed between the water inlet channel and the water outlet channel and used for controlling opening and closing of a fluid, a valve rod 4 disposed above the valve plate 3 and inside the gate valve body 1, a first channel disposed above the gate valve body 1, a lower end of the valve rod 4 fixedly connected to the valve plate 3, an upper end of the valve rod 4 extending out of the first channel and located outside the valve cover 2, a seal box 5 fixedly disposed on the valve cover 2, a rotation rod 8 rotatably disposed on the seal box 5 and having a diameter equal to that of the valve rod 4, one end of the rotation rod 8 being disposed on an upper end surface of the valve rod 4, and the other end of the rotation rod 8 extending out of the seal box 5, the sliding device is characterized in that a first bevel gear ring 6 is slidably arranged on the rotating rod 8, a second bevel gear ring 7 capable of being meshed with the first bevel gear ring 6 is fixedly arranged on the seal box 5, a sliding device used for sliding the first bevel gear ring 6 is further arranged on the rotating rod 8, the sliding device comprises a sliding block 16, a second channel 9 is formed between the rotating rod 8 and the valve rod 4, a screw rod 10 is arranged in the second channel 9, one end of the screw rod 10 is rotatably arranged at the bottom end of the second channel 9, the other end of the screw rod 10 penetrates through the rotating rod 8 and is level with the outer end face of the rotating rod 8, one end of the sliding block 16 is fixedly connected with the first bevel gear ring 6, the other end of the sliding block 16 is sleeved on the screw rod 10 and is in meshed transmission with the screw rod 10, a sliding groove for sliding the sliding block 16 is further formed in the rotating rod 8, and is communicated with the second channel 9, be equipped with the interlock between dwang 8 and the valve rod 4, the interlock includes a plurality of protruding 12 of card, the protruding 12 solid fixed ring of card is around locating under the sliding block 16 tip, the fixed draw-in groove arch 13 that supplies the protruding 12 card of card to go up of valve rod 4 is gone up, the draw-in groove arch 13 is located second passageway 9.

In order to facilitate the rotation of the screw 10, a rotating plate is fixedly arranged on the screw 10, and the rotating plate is positioned at the outer end part of the rotating rod 8.

In order to facilitate the rotation of the rotating hand wheel, the rotating hand wheel is fixedly arranged on the rotating rod 8.

The working principle is as follows:

when the butterfly valve is to be opened, the screw rod 10 is rotated by rotating the screw cap through positive rotation, the screw rod 10 is in threaded transmission with the sliding block 16 to drive the sliding block 16 to slide downwards, the first bevel gear 6 and the second bevel gear 7 are disengaged, the sliding block 16 continues to slide downwards to drive the bevel gear to slide downwards, then the screw rod 10 continues to be rotated, the sliding block continues to slide downwards until the clamping protrusions 12 on the sliding block are clamped with the clamping groove protrusions 13, then the rotating hand wheel is rotated to drive the rotating rod 8 to rotate, the rotating rod 8 drives the valve rod 4 to rotate, and the butterfly valve is opened. When the butterfly valve is to be closed, the hand wheel is rotated to close the butterfly valve, the screw rod 10 is rotated reversely, the screw rod 10 and the sliding block 16 are in threaded transmission to drive the sliding block 16 to slide upwards, the clamping protrusion 12 and the clamping groove protrusion 13 are disengaged, then the screw rod 10 is continuously rotated, the sliding block 16 drives the first bevel gear ring 6 to ascend to be meshed with the second bevel gear ring 7, and the rotating rod 8 is locked.

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 with prevent opening, include the gate valve body, set up in valve gap on the gate valve body, along radial inhalant canal and the exhalant canal of seting up of gate valve body, set up in inhalant canal with be used for controlling the valve plate that fluid opened and close between the exhalant canal, the valve plate top is located the inside valve rod that is equipped with of gate valve body, first passageway has been seted up to gate valve body top, the lower tip of valve rod with valve plate fixed connection, wear out the valve rod upper end first passageway is located outside the valve gap, its characterized in that: the fixed seal box that is equipped with on the valve gap, the rotatable dwang of wearing to be equipped with the same with valve rod diameter on the seal box, dwang one end is located the valve rod up end, the seal box is worn out to the dwang other end, be equipped with linkage between dwang and the valve rod, the slidable is equipped with first oblique ring gear on the dwang, the fixed oblique ring gear that can mesh with first oblique ring gear that is equipped with on the seal box, still be equipped with on the dwang and be used for making the gliding slider of first oblique ring gear.

2. The butterfly valve with opening prevention according to claim 1, wherein: the sliding device comprises a sliding block, a second channel is arranged between the rotating rod and the valve rod, a screw rod is arranged in the second channel, one end of the screw rod is rotatably arranged at the bottom end of the second channel, the other end of the screw rod penetrates through the outer end face of the rotating rod and the outer end face of the rotating rod, one end of the sliding block is fixedly connected with the first inclined gear ring, the other end of the sliding block is sleeved on the screw rod and is in transmission with the screw rod in a meshed mode, a sliding groove for sliding the sliding block is further formed in the rotating rod, and the sliding groove is communicated with the second channel.

3. The butterfly valve with opening prevention of claim 2, wherein: the linkage device comprises a plurality of clamping protrusions, the clamping protrusion fixing rings are wound on the lower end portions of the sliding blocks, clamping groove protrusions for clamping the clamping protrusions are fixedly arranged on the valve rod, and the clamping groove protrusions are located in the second channel.

4. The butterfly valve with opening prevention of claim 2, wherein: and a rotating nut is fixedly arranged on the screw rod and is positioned at the outer end part of the rotating rod.

5. The butterfly valve with opening prevention of claim 2, wherein: and a rotating hand wheel is fixedly arranged on the rotating rod.

6. The butterfly valve with opening prevention of claim 2, wherein: the screw rod is rotatably arranged in the second channel of the valve rod through a bearing.