CN113028073A

CN113028073A - Novel valve

Info

Publication number: CN113028073A
Application number: CN202110323940.4A
Authority: CN
Inventors: 赵立芹
Original assignee: Tianjin Leisheng Technology Co ltd
Current assignee: Tianjin Leisheng Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-06-25

Abstract

The application provides a novel valve, which comprises a valve body; a valve rod is arranged on the valve body along the radial direction; a threaded rod and a valve plate are also arranged in the valve body; the threaded rod is rotatably arranged on the valve rod; the valve plate is sleeved on the threaded rod and is in threaded connection with the threaded rod; the outside of the valve body is provided with a driving component corresponding to the threaded rod and the valve rod. According to the technical scheme provided by the embodiment of the application, the valve plate is driven to slide relative to the valve body through the threaded rod, so that the valve plate and the end part of the valve body are in compression sealing; the valve plate slides to valve rod department, can overturn equally to the controlled flow, control effect is good, has more the practicality.

Description

Novel valve

Technical Field

The application relates to the technical field of valves, in particular to a novel valve.

Background

A butterfly valve is also called a flap valve, is an important regulating valve in a fluid transmission system, and is widely applied to various fields of aerospace, petrochemical industry, water conservancy and hydropower and the like. The opening and closing piece is a disc-shaped butterfly plate, and the butterfly plate rotates around the axis of the butterfly plate, so that the opening, closing and adjusting functions are realized. The device can be used for controlling the flow of various fluids such as water, air, high-pressure steam, slurry, corrosive and radioactive media and the like, and plays a vital role in the safety, rapidness and accuracy of a pipeline system. The butterfly valve is thin, so the sealing performance in a closed state is an important index of the reliability of the butterfly valve. The sealing mode of present butterfly valve mainly utilizes the disk seat face of slope and the outer peripheral face of butterfly plate to cooperate, realizes sealedly through the frictional force between them, and this sealing mode is very big to the wearing and tearing of disk seat and sealing washer, and life is shorter to long-time the use can lead to the sealing washer to warp, and then leads to sealing performance variation. Therefore, further development of sealing technology for butterfly valves is required.

Disclosure of Invention

In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a new valve.

The application provides a novel valve, which comprises a valve body; a valve rod is arranged on the valve body along the radial direction; a threaded rod and a valve plate are also arranged in the valve body; the threaded rod is rotatably arranged on the valve rod; the valve plate is sleeved on the threaded rod and is in threaded connection with the threaded rod; the outside of the valve body is provided with a driving component corresponding to the threaded rod and the valve rod.

Further, the driving assembly comprises a first rotating disc; the first rotating disc is rotatably arranged on the valve body through a first rotating shaft; the first rotating shaft is connected with the valve rod through a gear set.

Further, the driving assembly comprises a second turntable; the second turntable is rotatably arranged on the valve body through a second rotating shaft; one end of the second rotating shaft is positioned in the valve body and is connected with the threaded rod through the bevel gear set.

Furthermore, a sealing head is detachably mounted at one end of the valve body, which is positioned at the outlet; the sealing head is provided with a sealing component corresponding to the valve plate.

Further, the seal assembly includes a seal ring; the sealing head is provided with a mounting groove corresponding to the sealing ring; a pressing mechanism is arranged in the mounting groove corresponding to the sealing ring.

Further, the pressing mechanism comprises at least two holding tiles which can be slidably arranged in the mounting groove; the holding tiles are uniformly distributed around the sealing ring.

Furthermore, the pressing mechanism also comprises a pressing ring; the clamp ring is connected with the mounting groove through threads and is in butt joint with the holding tile through an inclined plane.

Further, the device also comprises a sliding rod; the slide bar is parallel to the threaded rod and is fixedly connected with the valve rod.

The application has the advantages and positive effects that:

according to the technical scheme, the valve plate is driven by the threaded rod to slide relative to the valve body, so that the valve plate and the end part of the valve body are in compression sealing, and compared with the prior art, the valve plate has the advantages that the abrasion to a sealing assembly is smaller, the service life is longer, and the cost performance is higher; the valve plate slides to valve rod department, can overturn equally to the controlled flow, control effect is good, has more the practicality.

Furthermore, the sealing head and the valve body can be detachably connected, meanwhile, the sealing ring is matched with the pressing mechanism, the pressing mechanism can be detached and replaced, daily maintenance is facilitated, and the practicability is high.

Drawings

Fig. 1 is a schematic structural diagram of a novel valve provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a sliding rod of the novel valve provided by the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a gear set of the novel valve provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a sealing head of the novel valve provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of a trigger block of the novel valve provided in the embodiment of the present application.

The text labels in the figures are represented as: 100-a valve body; 110-a valve stem; 111-a first carousel; 112-a first shaft; 113-gear set; 114-a driven gear; 115-a drive gear; 116-a sliding sleeve; 120-threaded rod; 121-a second carousel; 122-a second rotating shaft; 123-bevel gear set; 130-a valve plate; 140-a sealing head; 141-sealing ring; 142-throw tile; 143-a clamp ring; 150-sliding bar.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1-5, the present embodiment provides a specific structure and a specific implementation manner of a novel valve.

A novel valve, comprising a valve body 100; a valve rod 110 is arranged on the valve body 100 along the radial direction; the interior of the valve body 100 is also provided with a threaded rod 120 and a valve plate 130; threaded rod 120 is rotatably mounted on valve stem 110; the valve plate 130 is sleeved on the threaded rod 120 and is in threaded connection with the threaded rod 120; the exterior of the valve body 100 is provided with a drive assembly corresponding to the threaded rod 120 and the valve stem 110.

Preferably, a valve cavity with a rectangular cross section is arranged inside the valve body 100 along the length direction; specifically, the valve cavity is of a cylindrical structure as a whole, and one end of the valve cavity is of a curved gathering structure, namely a gathering end, as shown in fig. 1.

In a specific application scenario, when a good sealing state needs to be maintained, the threaded rod 120 is rotated to move the valve plate, which is connected with the threaded rod through the threaded rod, along the axial direction of the valve plate horizontally in a direction away from the valve rod, and when the edge of the valve plate is in right contact with the inner wall of the gathering end, the valve cavity can be sealed at this time.

In a specific application scenario, when the flow rate needs to be controlled, the threaded rod 120 is rotated in the opposite direction, so that the valve plate connected with the threaded rod moves horizontally in the direction close to the valve rod along the axial direction of the valve plate, and at this time, a gap for flowing is formed between the edge of the valve plate and the inner wall of the valve cavity.

In conclusion, the position of the valve plate on the threaded rod is controlled, so that the gap between the edge of the valve plate and the inner wall of the gathering end can be adjusted, the state that fluid flows between the edge of the valve plate and the inner wall of the gathering end is achieved, and the control of the butterfly valve is achieved.

In a preferred embodiment, the outlet end of the valve body 100 is threadably removably mounted with a seal head 140; the sealing head 140 is provided with a sealing plane corresponding to the valve plate 130; the sealing plane extends into the valve cavity and is in independent contact with the valve plate 130.

In a preferred embodiment, the length of the threaded rod 120 at the end of the valve stem 110 near the sealing head 140 corresponds to the distance between the sealing plane and the valve stem 110; when the valve plate 130 slides to the end far away from the valve rod 110, the valve plate is butted with the sealing plane for sealing; when the valve rod 110 slides to a position close to one end of the valve rod 110, the valve rod 110 can be rotated to turn over, so that the flow rate is controlled.

In a preferred embodiment, a gap is provided between the outer edge of the valve plate 130 and the inner wall of the valve cavity, so that the two sides are in a communication state, and the gap is matched with a contact plane extending into the valve cavity, thereby sealing and reducing resistance in opening.

In a preferred embodiment, the valve body 100 is further provided with a driving assembly corresponding to the valve stem 110 and the threaded rod 120; the drive assembly includes a first turntable 111 and a second turntable 121.

In a preferred embodiment, the valve body 100 is provided with a first rotating shaft 112 corresponding to the first rotating disc 111; the first rotating disc 111 is fixedly arranged on the first rotating shaft 112; the first shaft 112 is connected to the valve stem 110 via a gear set 113.

In a preferred embodiment, the gear assembly 113 may be located outside the valve body 100 or inside the valve body 100; when the valve stem 110 is located outside, one end of the valve stem penetrates through the valve body 100 and is located outside; when positioned internally, the first shaft 112 extends through the valve body 100 with one end positioned within the valve cavity.

In a preferred embodiment, a second rotating shaft 122 capable of rotating relatively is arranged on the valve body 100 corresponding to the second rotating disc 121; one end of the second shaft 122 penetrates the valve body 100, is located in the valve cavity, and is connected with the threaded rod 120 through the bevel gear set 123.

Referring further to fig. 4, in a preferred embodiment, a sealing ring 141 is disposed on the sealing head 140 corresponding to the valve plate 130; a matched mounting groove is formed in the sealing plane corresponding to the sealing ring 141; the arc-shaped groove convenient for installing the sealing ring 141 is arranged on the side, with the relatively smaller diameter, of the installation groove, and the internal thread is arranged on the side, with the relatively larger diameter, of the installation groove.

In a preferred embodiment, two holding tiles 142 capable of sliding relatively are further disposed in the mounting groove, the two holding tiles 142 are symmetrically disposed about a center of the sealing ring 141, an arc-shaped groove is also disposed on a side close to the sealing ring 141, and an inclined surface is disposed on a side far from the sealing ring 141.

In a preferred embodiment, the bottom of the holding tile 142 is provided with a protruding sliding block, and a corresponding sliding groove is arranged in the mounting groove corresponding to the sliding block; the holding tile 142 can effectively limit the sliding direction of the holding tile by being arranged in the mounting groove through the sliding block.

In a preferred embodiment, a compression ring 143 is further mounted in the mounting groove through internal threads; the inner side of the clamp ring 143 is also provided with a matching bevel corresponding to the bevel on the holding tile 142.

With further reference to fig. 2, in a preferred embodiment, the valve stem 110 is further provided with a sliding rod 150 for limiting the rotation of the valve plate 130 around the threaded rod 120; the sliding rod 150 is provided with at least one, parallel to the threaded rod 120, and fixedly mounted on the valve stem 110.

Referring further to FIG. 3, in a preferred embodiment, the gear set 113 includes a driven gear 114 mounted on the valve stem 110 and a drive gear 115 mounted on the first shaft 112; the driving gear 115 is fixedly mounted on the first rotating shaft 112; a sliding sleeve 116 is arranged on the valve rod 110 corresponding to the driven gear 114; the driven gear 114 is fixedly arranged on a sliding sleeve 116, and the sliding sleeve 116 is sleeved on the valve stem 110 and can slide relatively; splines are further arranged between the sliding sleeve 116 and the valve stem 110 and used for limiting the sliding sleeve 116 to rotate relative to the valve stem 110; the driven gear 115 is slidably coupled to the stem 110, so that the connection with the driving gear 114 can be switched, and the valve plate 130 is prevented from being erroneously operated by a turning operation when the valve plate 130 is in a sealed state.

Referring to fig. 5, in a preferred embodiment, the valve plate 130 is provided with a trigger block corresponding to the sliding sleeve 116; the trigger block is provided with a contact inclined plane corresponding to the sliding sleeve 116 and a U-shaped hole corresponding to the valve rod 110; when the valve plate 130 slides to a position close to one end of the valve rod 110, the U-shaped hole is engaged with the valve rod 110, and the contact slope pushes up the sliding sleeve 116, so that the driving gear 114 is abutted with the driven gear 115.

In a preferred embodiment, the cross-sectional area of the valve chamber near the end of the seal head 140 is gradually reduced to allow for initial flow control with the sliding valve plate 130.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.

Claims

1. A new valve, characterized by comprising a valve body (100); a valve rod (110) is arranged on the valve body (100) along the radial direction; a threaded rod (120) and a valve plate (130) are further arranged inside the valve body (100); the threaded rod (120) is rotatably mounted on the valve stem (110); the valve plate (130) is sleeved on the threaded rod (120) and is in threaded connection with the threaded rod (120); the outer part of the valve body (100) is provided with a driving assembly corresponding to the threaded rod (120) and the valve rod (110).

2. The new valve according to claim 1, characterized in that said driving assembly comprises a first rotary disc (111); the first rotating disc (111) is rotatably arranged on the valve body (100) through a first rotating shaft (112); the first rotating shaft (112) is connected with the valve rod (110) through a gear set (113).

3. The new valve according to claim 1, characterized in that said driving assembly comprises a second rotary disc (121); the second rotating disc (121) is rotatably arranged on the valve body (100) through a second rotating shaft (122); one end of the second rotating shaft (122) is located inside the valve body (100) and is connected with the threaded rod (120) through a bevel gear set (123).

4. The new valve according to claim 1, characterized in that the end of the valve body (100) at the outlet is fitted with a removable sealing head (140); and a sealing assembly is arranged on the sealing head (140) corresponding to the valve plate (130).

5. The novel valve of claim 4, wherein said seal assembly comprises a seal ring (141); the sealing head (140) is provided with a mounting groove corresponding to the sealing ring (141); and a pressing mechanism is arranged in the mounting groove corresponding to the sealing ring (141).

6. The novel valve of claim 5 wherein said hold down mechanism comprises at least two throw shoes (142) slidably mounted in mounting slots; the holding tiles (142) are uniformly distributed around the sealing ring (141).

7. The novel valve of claim 6, wherein said compression mechanism further comprises a compression ring (143); the compression ring (143) is in threaded connection with the mounting groove and is in butt joint with the holding tile (142) through an inclined plane.

8. The novel valve of claim 1, further comprising a sliding rod (150); the sliding rod (150) is parallel to the threaded rod (120) and is fixedly connected with the valve rod (110).