Conical valve with guiding device convenient to replace

Abstract

The conical valve comprises a valve body, the flow guiding device and an opening and closing mechanism, the flow guiding device and the opening and closing mechanism are installed in the valve body, a plurality of clamping grooves are formed in the periphery of the outer side face of the lower end of the valve body, and detachable guiding rings are embedded in the groove bodies. The opening and closing mechanism further comprises a sealing sleeve, the valve body is sleeved with the sealing sleeve in a sliding mode, the sealing sleeve covers the protruding end of the flow guiding device, connecting rods extending upwards are installed on the two sides of the sealing sleeve, and the upper ends of the connecting rods on the two sides are connected with a connecting frame. And the lifting device is in transmission connection with the connecting middle part, the maintenance cost is low, the structure is simpler, the service life is longer, and the stability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of valve equipment, in particular to a conical valve with a guide device that is convenient for replacing. Background Art

[0002] Cone valve is a valve used to control fluid flow and pressure. It is often used in water conservancy projects, water supply and drainage projects, petrochemical industry and power industry technology. Cone valve has the advantages of good adjustment performance, good sealing, simple structure and wide application range.

[0003] The overall structure of the conical valve includes structures such as the valve body, the valve core and the sealing sleeve. The sealing sleeve moves on the valve body to control the fluid from diffusing outward and releasing through the valve core. A guide device is usually provided between the sealing sleeve and the valve body to ensure the stable movement of the sealing sleeve. In the current existing technology, a brass ring welding structure on the outside of the valve body is usually used as a guide ring between the valve body and the sealing sleeve, so that the guide ring and the valve body are integrated into one. However, the hardness of the brass material is relatively low, and it is easy to deform when subjected to a large lateral force, thereby affecting the guiding effect. In addition, the welding structure makes the guide ring and the valve body integrated into one. After the guide ring is damaged, it is more difficult to replace it, and it may even cause the entire valve body to be unable to be used normally, and the maintenance cost is high. Therefore, it is necessary to further optimize the guide ring for this problem. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a conical valve with low maintenance cost, simpler structure, longer service life and greater stability, which is convenient for replacing the guide device.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a conical valve which is convenient for replacing the guide device, comprising a valve body, a guide device installed inside the valve body, and an opening and closing mechanism. The outer side surface of the lower end of the valve body is circumferentially opened with a plurality of slots, and a removable guide ring is embedded in each of the plurality of slots. The guide device is installed inside the valve body cavity and the lower end of the guide device is extended and arranged at the lower end of the valve body. The opening and closing mechanism also includes a sealing sleeve, which is slidably sleeved on the valve body and covered at the protruding end of the guide device. Connecting rods extending upward are installed on both sides of the sealing sleeve, and the upper ends of the connecting rods on both sides are connected to connecting frames, which are connected to a lifting device for transmission connection in the middle.

[0006] Preferably, a limiting ring is provided around the middle of the outer side of the valve body, the sealing sleeve is slidably mounted on the valve body and is placed at the lower end of the limiting ring, and the diameter of the limiting ring is larger than the diameter of the sealing sleeve.

[0007] Preferably, the diversion device includes a transition cone barrel. There are only diversion fins on the outer circumference of the transition cone barrel. The outer edges of the diversion fins on the outside of the transition cone barrel are fixedly connected to the inner wall of the valve body. The lower ends of both the transition cone barrel and the diversion fins protrude from the lower end of the valve body. A sealing ring is installed at the lower end of the diversion fins. A gasket is provided on the sealing ring. The diameter of the sealing ring is greater than the diameter of the sealing sleeve.

[0008] Preferably, fixing members are provided on both sides of the sealing sleeve. Link rods extending upward are fixedly provided inside the fixing members on both sides. The upper ends of the link rods on both sides are connected to a connection frame. A lifting device is threadedly connected to the middle of the connection frame. Preferably, the lifting device includes a hoist. A lifting screw rod is coaxially connected to the lower end of the hoist. The lifting screw rod is threadedly connected to the middle of the connection frame. The hoist controls the lifting of the connection frame by driving the lifting screw rod.

[0009] Preferably, the number of the troughs is N, where N is a positive integer greater than or equal to 3. A plurality of troughs are all formed on the outer side of the lower section of the valve body and are arranged in an array from top to bottom in sequence. A guiding ring can be detachably installed in each trough. The guiding ring is an oil cylinder guiding ring.

[0010] The beneficial effects of the present utility model are as follows: By forming a plurality of troughs on the outer side of the lower end of the valve body and detachably installing oil cylinder guiding rings in the troughs, the present utility model replaces the brass welded guiding rings in the traditional valve body guiding ring technology, thereby increasing the service life of the conical valve and reducing the maintenance cost. The detachable oil cylinder guiding ring has high hardness and strength, can better withstand various forces during the operation of the oil cylinder, maintain a stable guiding effect, and has better wear resistance than brass. It can maintain good performance during long-term use, reduce the maintenance cost caused by wear, and moreover, the replacement is more convenient. After the guiding ring is damaged, it can be simply removed and a new guiding ring can be replaced for continued use, and the disassembly and assembly are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the front view of the overall structure of the present utility model;

[0012] Figure 2 is the cross-sectional view of the present utility model;

[0013] Figure 3 is Figure 1 the partial structural schematic diagram of A in

[0014] Figure 4 is the structural schematic diagram of the valve body of the present utility model;

[0015] Figure 5 is the structural schematic diagram of the sealing sleeve of the present utility model.

[0016] Description of the reference numerals in the drawings

[0017] 1. Valve body; 101. Limit ring; 102. Card slot; 2. Transition cone barrel; 201. Flow guide piece; 202. Sealing ring; 203. Gasket; 3. Sealing sleeve; 301. Connector; 302. Connecting rod; 4. Connection frame; 5. Hoist; 501. Lifting screw rod; 6. Guide ring. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0019] Combined with Figures 1-5 , the present invention is a conical valve facilitating the replacement of a guiding device, including a valve body 1, a flow guiding device installed inside the valve body 1, and a hoisting mechanism. A plurality of card slots 102 are circumferentially formed on the outer side surface of the lower end of the valve body 1, and a detachable guide ring 6 is embedded in each of the plurality of slots. The flow guiding device is installed inside the cavity of the valve body 1, and the lower end of the flow guiding device extends to the lower end of the valve body 1. The hoisting mechanism further includes a sealing sleeve 3. The sealing sleeve 3 is slidably sleeved on the valve body 1 and covers the protruding end of the flow guiding device. Connecting rods 302 extending upward are installed on both sides of the sealing sleeve 3, and the upper ends of the connecting rods 302 on both sides are connected to a connection frame 4, and a lifting device is connected in the middle of the connection for transmission.

[0020] Further, a limit ring 101 is circumferentially arranged in the middle of the outer side of the valve body 1. The sealing sleeve 3 is slidably sleeved on the valve body 1 and is placed below the limit ring 101. The diameter of the limit ring 101 is larger than the diameter of the sealing sleeve 3. Further, the flow guiding device includes a transition cone barrel 2. Flow guide pieces 201 are only arranged circumferentially on the outer side of the transition cone barrel 2. The outer side edges of the flow guide pieces 201 on the outer side of the transition cone barrel 2 are fixedly connected to the inner wall of the valve body 1. The lower ends of the transition cone barrel 2 and the flow guide pieces 201 both protrude from the lower end of the valve body 1. A sealing ring 202 is installed at the lower end of the flow guide piece 201, and a gasket 203 is arranged on the sealing ring 202. The diameter of the sealing ring 202 is larger than the diameter of the sealing sleeve 3. Further, fixing pieces are arranged on both sides of the sealing sleeve 3, and connecting rods 302 extending upward are fixedly arranged in the fixing pieces on both sides. The upper ends of the connecting rods 302 on both sides are connected to a connection frame 4, and a lifting device is threadedly connected to the middle of the connection frame 4.

[0021] Further, the lifting device includes a hoist 5. The lower end of the hoist 5 is coaxially connected with a lifting screw rod 501. The lifting screw rod 501 is threadedly connected to the middle of the connection frame 4. The hoist 5 controls the lifting of the connection frame 4 by driving the lifting screw rod 501.

[0022] Furthermore, there are N slots, where N is a positive integer greater than or equal to three. The multiple slots are all opened on the outer side of the lower section of the valve body 1 and are arranged in an array from top to bottom. A guiding ring 6 can be detachably installed in each slot, and the guiding ring 6 is an oil cylinder guiding ring 6.

[0023] In the present utility model, by opening multiple slots on the outer side of the lower end of the valve body 1 and detachably installing the oil cylinder guiding ring 6 in the slots, the brass welded guiding ring 6 in the traditional guiding ring 6 technology of the valve body 1 is replaced, thereby increasing the service life of the conical valve and reducing the maintenance cost. The detachable oil cylinder guiding ring 6 has high hardness and strength, can better withstand various forces during the operation of the oil cylinder, maintain a stable guiding function, and the oil cylinder guiding ring 6 has better wear resistance than brass, can maintain good performance during long-term use, reduce the maintenance cost caused by wear, and moreover, the replacement is more convenient. After the guiding ring 6 is damaged, it can be simply removed and a new guiding ring 6 can be replaced for continued use, and the disassembly and assembly are more convenient.

[0024] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A conical valve with an easily replaceable guide device, comprising a valve body (1), a flow guide device installed inside the valve body (1), and an opening and closing mechanism, characterized in that: The outer side surface of the lower end of the valve body (1) is provided with a plurality of slots (102) around its periphery, and a detachable guide ring (6) is embedded in each of the plurality of slots. The flow guide device is installed inside the cavity of the valve body (1) and the lower end of the flow guide device is extended and arranged at the lower end of the valve body (1). The opening and closing mechanism also includes a sealing sleeve (3), which is slidably sleeved on the valve body (1) and the cover is arranged on the protruding end of the flow guide device. Connecting rods (302) extending upward are installed on both sides of the sealing sleeve (3), and the upper ends of the connecting rods (302) on both sides are connected to a connecting frame (4), which is connected to a lifting device for transmission connection in the middle.

2. A conical valve with an easy-to-replace guide device according to claim 1, characterized in that: A limiting ring (101) is provided around the middle of the outer side of the valve body (1), and the sealing sleeve (3) is slidably sleeved on the valve body (1) and is placed at the lower end of the limiting ring (101), and the diameter of the limiting ring (101) is larger than the diameter of the sealing sleeve (3).

3. The conical valve with easy guide device replacement according to claim 1, characterized in that: The guide device comprises a transition cone barrel (2), the outer circumference of the transition cone barrel (2) is provided with only a guide plate (201), the outer edge of the guide plate (201) on the outer side of the transition cone barrel (2) is fixedly connected to the inner wall of the valve body (1), the lower ends of the transition cone barrel (2) and the guide plate (201) both protrude from the lower end of the valve body (1), a sealing ring (202) is mounted on the lower end of the guide plate (201), a gasket (203) is provided on the sealing ring (202), and the diameter of the sealing ring (202) is larger than the diameter of the sealing sleeve (3).

4. The conical valve with easy guide device replacement according to claim 1, characterized in that: Both sides of the sealing sleeve (3) are provided with fixing members, and connecting rods (302) extending upward are fixedly provided in the fixing members on both sides. The upper ends of the connecting rods (302) on both sides are connected to connecting frames (4), and the middle part of the connecting frame (4) is threadedly connected to the lifting device.

5. The conical valve with easy guide device replacement according to claim 1, characterized in that: The lifting device comprises a gate hoist (5), the lower end of the gate hoist (5) is coaxially connected to a lifting screw (501), the lifting screw (501) is threadedly connected and arranged in the middle of the connecting frame (4), and the gate hoist (5) controls the lifting of the connecting frame (4) by driving the lifting screw (501).

6. The conical valve with easy guide device replacement according to claim 1, characterized in that: There are N groove bodies, where N is a positive integer greater than or equal to three. The multiple groove bodies are all opened on the outer side of the lower section of the valve body (1) and are arranged in an array from top to bottom. A guide ring (6) can be detachably installed in each groove body, and the guide ring (6) is a cylinder guide ring (6).

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