High-strength gate valve

Abstract

The high-strength gate valve comprises a valve body, the top of the valve body is fixedly connected with a lower connecting base, the top of the lower connecting base is fixedly connected with an upper connecting base, the top of the upper connecting base is fixedly connected with a mounting base, a driving rod is in threaded connection with the interior of the mounting base, and the upper portion of the driving rod is fixedly connected with a hand wheel. And the lower part of the driving rod is in threaded connection with a threaded cylinder. The gate valve has the advantages that the reinforcing ribs effectively improve the rigidity of the gate plate, and then the blocking strength of the gate valve is improved. When water flow or air flow flows to the gate valve, the water guide plate guides the water flow and the air flow, so that the water flow and the air flow are guided to one side of the water wheel, the water wheel can rotate under the impact of the water flow or the air flow, the impact force of the water flow and the air flow is relieved in the rotating process, and then the impact force of the water flow and the air flow impacting the gate plate can be reduced; therefore, the strength of the gate valve can be further improved, and long-term use of the gate valve is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a high-strength gate valve. Background Technique

[0002] A gate valve is a widely used fluid control device, mainly used to cut off the flow of media in pipeline engineering. According to different structural forms and uses, gate valves can be divided into various types, such as flat gate valves, resilient seated gate valves, conical gate valves, double disc gate valves, diaphragm gate valves, rotary gate valves, pneumatic gate valves, etc. Each type of gate valve has its specific application scenarios, advantages and disadvantages.

[0003] Existing gate valves mainly consist of a valve body, a gate plate, a valve stem and a handwheel or motor, etc. The gate plate moves linearly with the valve stem, and its movement direction is perpendicular to the fluid direction. Most gate valves have simple functions. During the flow of liquid, due to the strong impact force of the liquid, the gate plate is impacted by the liquid. Especially when the thickness of some gate plates is small, during long-term use, the gate plate may be bent or worn, affecting the normal operation of the gate valve. For this reason, a high-strength gate valve is proposed for improvement. Summary of the Utility Model

[0004] The purpose of the utility model aims to solve at least one of the above technical defects.

[0005] To this end, an object of the utility model is to propose a high-strength gate valve to solve the problems mentioned in the background technique and overcome the deficiencies in the existing technology.

[0006] To achieve the above object, an embodiment of one aspect of the utility model provides a high-strength gate valve, including a valve body. A lower connecting seat is fixedly connected to the top of the valve body. An upper connecting seat is fixedly connected to the top of the lower connecting seat. An installation seat is fixedly connected to the top of the upper connecting seat. A driving rod is threadedly connected to the installation seat. A handwheel is fixedly connected to the upper part of the driving rod. A threaded cylinder is threadedly connected to the lower part of the driving rod. A gate plate is fixedly connected to the bottom end of the threaded cylinder. A reinforcing rib is fixedly connected to the back water side of the gate plate. A mounting plate is fixedly connected to the water-facing side of the gate plate. A rotating shaft is rotatably connected to the mounting plate. A water wheel is fixedly connected to the rotating shaft. A water guide plate is arranged on the outside of the water wheel.

[0007] Preferably, connecting flanges are fixedly connected to both ends of the valve body. The lower connecting seat and the upper connecting seat are fixedly connected by flanges and bolts.

[0008] Preferably, the upper connecting seat adopts a conical structure. The upper connecting seat and the installation seat are fixedly connected by flanges and bolts.

[0009] Adopting the above technical solution: The valve body provides an installation platform and space for relevant valve gate components and allows fluid to pass through. Connecting flanges are provided at both ends of the valve body to facilitate the connection of the valve body to external pipelines. The lower connecting seat connects the upper connecting seat to the valve body, and it has a certain space inside, which can provide storage space for structures such as the gate plate, reinforcing ribs, and mounting plate. The upper connecting seat provides an installation platform for the mounting seat. The lower connecting seat and the upper connecting seat are fixedly connected by flanges and bolts, and the upper connecting seat and the mounting seat are fixedly connected by flanges and bolts, which facilitates the replacement of the upper connecting seat and the mounting seat.

[0010] Preferably, according to any of the above solutions, the driving rod passes through the mounting seat, handwheel, and upper connecting seat, and a limiting component for restricting the rotation of the threaded cylinder is arranged inside the lower connecting seat.

[0011] Preferably, according to any of the above solutions, there are several reinforcing ribs, which are evenly arranged along the width direction of the gate plate, and the reinforcing ribs adopt a triangular structure.

[0012] Adopting the above technical solution: The driving rod is used to drive the threaded cylinder to perform vertical displacement. A handwheel is arranged on the driving rod to facilitate the user to rotate the driving rod. The top end of the driving rod passes through structures such as the mounting seat, which facilitates the locking of the driving rod by using external components. The threaded cylinder is used to drive the gate plate to perform vertical displacement. A limiting cylinder is arranged inside the lower connecting seat to limit the threaded cylinder and ensure the stable vertical displacement of the limiting cylinder. The gate plate is used to block the valve body to block the fluid. Reinforcing ribs are arranged on the back water surface of the gate plate, which can effectively improve the stiffness of the gate plate and thus improve the blocking strength of the gate valve. Several reinforcing ribs are evenly arranged on the back water surface of the gate plate, and the evenly arranged reinforcing ribs can stably and balancedly improve the strength of the gate plate.

[0013] Preferably, according to any of the above solutions, the mounting plate includes upper, middle, and lower layers, and the rotating shaft is arranged at the middle position of the valve body.

[0014] Preferably, according to any of the above solutions, there are two water wheels, upper and lower, and the water-facing surface of the water guide plate is an arc surface.

[0015] Adopting the above technical solution: The mounting plate provides an installation platform for the rotating shaft and the water guide plate. The rotating shaft provides support for the water wheel, and the water wheel can rotate under the impact of water flow or air flow. During the rotation process, the impact force of the water flow and air flow is unloaded. The upper and lower water wheels can respectively guide the water flow and air flow in layers, reducing the working pressure of each water wheel. The upper, middle, and lower three-layer mounting plates respectively provide an installation platform for the two water wheels. The water guide plate can guide the water flow and air flow so that the water flow and air flow are guided to one side of the water wheel, thereby driving the water wheel to rotate smoothly. The water-facing surface of the water guide plate is an arc surface, which is beneficial to the rapid guidance of the water flow and air flow.

[0016] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:

[0017] 1. For this high-strength gate valve, by setting structures such as reinforcing ribs, mounting plates, rotating shafts, water wheels, and water guide plates, the reinforcing ribs can effectively improve the stiffness of the gate plate, thereby enhancing the sealing strength of the gate valve. When water flow or air flow reaches the gate valve, the water guide plate guides the water flow and air flow, causing the water flow and air flow to be guided to one side of the water wheel. The water wheel can rotate under the impact of the water flow or air flow. During the rotation process, the impact force of the water flow and air flow is unloaded, thereby reducing the impact force of the water flow and air flow hitting the gate plate and reducing the wear of the gate plate. This can further improve the strength of the gate valve and is beneficial for the long-term use of the gate valve.

[0018] 2. For this high-strength gate valve, by evenly arranging a number of reinforcing ribs on the back water surface of the gate plate, the evenly arranged reinforcing ribs can stably and balancedly improve the strength of the gate plate. The upper and lower water wheels can respectively guide the water flow and air flow in layers, reducing the working pressure of each water wheel. The water-facing surface of the water guide plate adopts an arc surface, which is beneficial for the rapid guidance of the water flow and air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0020] Figure 1 is a schematic structural diagram of the first perspective of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the second perspective of the present utility model;

[0022] Figure 3 is a schematic sectional structure diagram of the present utility model;

[0023] Figure 4 is a schematic structural diagram at the water wheel of the present utility model.

[0024] In the figure: 1 - valve body, 2 - lower connecting seat, 3 - upper connecting seat, 4 - mounting seat, 5 - driving rod, 6 - hand wheel, 7 - threaded cylinder, 8 - gate plate, 9 - reinforcing rib, 10 - mounting plate, 11 - rotating shaft, 12 - water wheel, 13 - water guide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0026] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] As Figures 1 to 4 shown, a high-strength gate valve provided by the present utility model includes a valve body 1. A lower connecting seat 2 is fixedly connected to the top of the valve body 1. An upper connecting seat 3 is fixedly connected to the top of the lower connecting seat 2. An installation seat 4 is fixedly connected to the top of the upper connecting seat 3. A driving rod 5 is threadedly connected inside the installation seat 4. A handwheel 6 is fixedly connected to the upper part of the driving rod 5. A threaded cylinder 7 is threadedly connected to the lower part of the driving rod 5. A gate plate 8 is fixedly connected to the bottom end of the threaded cylinder 7. A reinforcing rib 9 is fixedly connected to the water-receiving side of the gate plate 8. A mounting plate 10 is fixedly connected to the water-facing side of the gate plate 8. A rotating shaft 11 is rotatably connected to the mounting plate 10. A water wheel 12 is fixedly connected to the rotating shaft 11. A water guide plate 13 is arranged on the outer side of the water wheel 12.

[0028] Embodiment 1: Connection flanges are fixedly connected to both ends of the valve body 1. The lower connecting seat 2 and the upper connecting seat 3 are fixedly connected by a flange and bolts. The upper connecting seat 3 adopts a conical structure, and the upper connecting seat 3 and the installation seat 4 are fixedly connected by a flange and bolts. The valve body 1 provides an installation platform and space for relevant valve components and allows fluid to pass through. Connection flanges are arranged at both ends of the valve body 1 to facilitate the connection of the valve body 1 to an external pipeline. The lower connecting seat 2 connects the upper connecting seat 3 and the valve body 1 together, and it has a certain space inside to provide a storage space for structures such as the gate plate 8, the reinforcing rib 9, and the mounting plate 10. The upper connecting seat 3 provides an installation platform for the installation seat 4. The lower connecting seat 2 and the upper connecting seat 3 are fixedly connected by a flange and bolts, and the upper connecting seat 3 and the installation seat 4 are fixedly connected by a flange and bolts, which facilitates the replacement of the upper connecting seat 3 and the installation seat 4.

[0029] Embodiment 2: The driving rod 5 passes through the mounting seat 4, the handwheel 6, and the upper connecting seat 3. A limiting component for restricting the rotation of the threaded cylinder 7 is provided inside the lower connecting seat 2. There are several reinforcing ribs 9 which are uniformly arranged along the width direction of the gate plate 8, and the reinforcing ribs 9 adopt a triangular structure. The driving rod 5 is used to drive the threaded cylinder 7 to perform vertical displacement. A handwheel 6 is arranged on the driving rod 5 to facilitate the user to rotate the driving rod 5. The top end of the driving rod 5 passes through structures such as the mounting seat 4, which is convenient for using external components to lock the driving rod 5. The threaded cylinder 7 is used to drive the gate plate 8 to perform vertical displacement. A limiting cylinder 7 is arranged inside the lower connecting seat 2 to limit the threaded cylinder 7 and ensure the stable vertical displacement of the limiting cylinder 7. The gate plate 8 is used to block the valve body 1 so as to block the fluid. Reinforcing ribs 9 are arranged on the back water surface of the gate plate 8, which can effectively improve the stiffness of the gate plate 8, and further improve the blocking strength of the gate valve. A number of reinforcing ribs 9 are uniformly arranged on the back water surface of the gate plate 8, and the uniformly arranged reinforcing ribs 9 can stably and evenly improve the strength of the gate plate 8.

[0030] Embodiment 3: The mounting plate 10 includes upper, middle, and lower layers, and the rotating shaft 11 is arranged at the middle position of the valve body 1. There are two upper and lower water wheels 12, and the water-facing surface of the water guide plate 13 adopts an arc surface. The mounting plate 10 provides an installation platform for the rotating shaft 11 and the water guide plate 13. The rotating shaft 11 provides support for the water wheels 12, and the water wheels 12 can rotate under the impact of water flow or air flow. During the rotation process, the impact force of the water flow and air flow is unloaded. The two upper and lower water wheels 12 can respectively guide the water flow and air flow in layers, reducing the working pressure of each water wheel 12. The upper, middle, and lower three-layer mounting plates 10 respectively provide an installation platform for the two water wheels 12. The water guide plate 13 can guide the water flow and air flow so that the water flow and air flow are guided to one side of the water wheel 12, thereby driving the water wheel 12 to rotate smoothly. The water-facing surface of the water guide plate 13 adopts an arc surface, which is beneficial to the rapid guidance of the water flow and air flow.

[0031] The working principle of the present utility model is as follows:

[0032] S1. Connect the gate valve to the external pipeline using the connecting flange. According to needs, rotate the handwheel 6 to drive the driving rod 5 to rotate. The driving rod 5 drives the gate plate 8 to perform vertical displacement through the threaded cylinder 7 to achieve the closing of the gate valve;

[0033] S2. When the water flow or air flow flows to the gate valve, the water guide plate 13 guides the water flow and air flow so that the water flow and air flow are guided to one side of the water wheel 12;

[0034] S3. The water wheel 12 can rotate under the impact of water flow or air flow. During the rotation process, the impact force of the water flow and air flow is unloaded, and further, the impact force of the water flow and air flow hitting the gate plate 8 can be reduced, and the wear of the gate plate 8 can be reduced. The reinforcing ribs 9 can effectively improve the stiffness of the gate plate 8, and further improve the blocking strength of the gate valve.

[0035] Compared with the prior art, the utility model has the following beneficial effects over the prior art:

[0036] 1. For this high-strength gate valve, by setting up structures such as reinforcing ribs 9, mounting plates 10, rotating shafts 11, water wheels 12 and water guide plates 13, the reinforcing ribs 9 can effectively improve the stiffness of the gate plate 8, thereby enhancing the sealing strength of the gate valve. When water flow or air flow reaches the gate valve, the water guide plate 13 guides the water flow and air flow, so that the water flow and air flow are guided to one side of the water wheel 12. The water wheel 12 can rotate under the impact of the water flow or air flow. During the rotation process, the impact force of the water flow and air flow is unloaded, thereby reducing the impact force of the water flow and air flow on the gate plate 8 and reducing the wear of the gate plate 8, which can further improve the strength of the gate valve and is beneficial to the long-term use of the gate valve.

[0037] 2. For this high-strength gate valve, by evenly arranging a number of reinforcing ribs 9 on the back water surface of the gate plate 8, the evenly arranged reinforcing ribs 9 can stably and balancedly improve the strength of the gate plate 8. The upper and lower water wheels 12 can respectively guide the water flow and air flow in layers, reducing the working pressure of each water wheel 12. The water-facing surface of the water guide plate 13 is an arc surface, which is beneficial to the rapid guidance of the water flow and air flow.

Claims

1. A high-strength gate valve, comprising a valve body (1), wherein the top of the valve body (1) is fixedly connected to a lower connecting seat (2), the top of the lower connecting seat (2) is fixedly connected to an upper connecting seat (3), the top of the upper connecting seat (3) is fixedly connected to a mounting seat (4), the mounting seat (4) is internally threadedly connected to a driving rod (5), the upper part of the driving rod (5) is fixedly connected to a hand wheel (6), the lower part of the driving rod (5) is threadedly connected to a threaded barrel (7), and the bottom end of the threaded barrel (7) is fixedly connected to a gate plate (8); characterized in that: A reinforcing rib (9) is fixedly connected to the backwater side of the gate plate (8), a mounting plate (10) is fixedly connected to the frontwater side of the gate plate (8), a rotating shaft (11) is rotatably connected to the mounting plate (10), a water wheel (12) is fixedly connected to the rotating shaft (11), and a water guide plate (13) is arranged on the outer side of the water wheel (12).

2. A high strength gate valve according to claim 1, characterized in that: Both ends of the valve body (1) are fixedly connected with connecting flanges, and the lower connecting seat (2) and the upper connecting seat (3) are fixedly connected by flange matching bolts.

3. A high strength gate valve as claimed in claim 2, characterized in that: The upper connecting seat (3) adopts a conical structure, and the upper connecting seat (3) is fixedly connected to the mounting seat (4) by means of flange matching bolts.

4. A high strength gate valve as claimed in claim 3, characterized in that: The driving rod (5) passes through the mounting seat (4), the hand wheel (6), and the upper connecting seat (3), and a limiting component for limiting the rotation of the threaded barrel (7) is arranged in the lower connecting seat (2).

5. A high strength gate valve as claimed in claim 4, characterized in that: There are a plurality of reinforcing ribs (9) which are evenly arranged along the width direction of the gate plate (8), and the reinforcing ribs (9) adopt a triangular structure.

6. A high strength gate valve as claimed in claim 5, characterized in that: The mounting plate (10) comprises three layers: an upper layer, a middle layer and a lower layer, and the rotating shaft (11) is arranged in the middle position of the valve body (1).

7. A high strength gate valve as claimed in claim 6, characterized in that: The water wheel (12) has two upper and lower parts, and the water-facing surface of the water guide plate (13) is an arc-shaped surface.

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