One-way oil pressure light torque gate valve
By using inclined and vertical sealing surface design and actuator components, the problem of high opening and closing torque of gate valves is solved, achieving labor-saving opening and closing and simplified processing, while ensuring sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU JIEYU VALVE MFG
- Filing Date
- 2026-05-20
- Publication Date
- 2026-06-26
AI Technical Summary
The existing gate valves have a face-to-face contact between the gate and the valve seat sealing surfaces, resulting in high friction, large opening and closing torque, and complex processing.
The valve employs an inclined first sealing surface and a vertical second sealing surface, combined with an actuator and a trigger, to control the movement of the valve stem by the medium pressure, thereby achieving effortless opening and closing of the gate.
It reduces the torque required for gate opening and closing, improves the ease of valve opening and closing, simplifies the manufacturing process, and ensures sealing performance.
Smart Images
Figure CN224414391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, specifically a one-way hydraulic light torque gate valve. Background Technology
[0002] like Figure 1 As shown, in existing gate valves, the two sides of the gate 3 are horizontally attached to the valve seat 8. This results in at least the following problems: the gate 3 and the end face of the valve seat 8 are always in a face-to-face sealing contact. In particular, the sealing surface of the valve seat 8 is usually made of rubber, which increases the friction. At this time, whether the gate 3 is rising or falling, the two sides of the gate 3 are always in a sealing contact with the valve seat 8, resulting in greater friction and thus a larger torque when the valve stem is opened and closed. Utility Model Content
[0003] The purpose of this invention is to provide a one-way hydraulic light torque gate valve to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a one-way hydraulic light torque gate valve, comprising a valve body and a valve stem installed in the valve body; the valve body has a first sealing surface on the water inlet side and a second sealing surface on the water outlet side; wherein, the first sealing surface is inclinedly disposed in the valve body and the second sealing surface is vertically disposed in the valve body.
[0005] As a preferred technical solution of this utility model: the valve body is provided with an actuation component; the actuation component includes a cylinder, and a piston is provided in the cylinder. The piston moves in the cylinder to drive the valve stem to move.
[0006] As a preferred technical solution of this utility model: the bottom of the cylinder body is provided with a first cylinder cover, and the upper end of the cylinder body is provided with a second cylinder cover, and both the first cylinder cover and the second cylinder cover are provided with medium inlet and outlet on their sides.
[0007] As a preferred technical solution of this utility model: the second cylinder head is further provided with a first trigger and a second trigger, and the push rod provided on the piston moves with the piston to trigger the first trigger or trigger the second trigger.
[0008] As a preferred technical solution of this utility model: the upper end of the valve stem passes through the piston and is adapted to be connected to the internal threaded hole provided at the bottom of the push rod.
[0009] As a preferred technical solution of this utility model: the upper end of the push rod passes through the second cylinder head and is connected to the provided hammer, and triggers the first trigger or the second trigger through the hammer.
[0010] As a preferred technical solution of this utility model: the second cylinder head is also provided with a vertical rod, the top of the vertical rod is rotatably connected to a rocker plate, and when the hammer pushes the rocker plate to rotate, the other end of the rocker plate presses on the second trigger, so as to realize the activation of the second trigger.
[0011] As a preferred technical solution of this utility model: when no external force is applied, the end of the rocker facing the second trigger is always separated from the second trigger.
[0012] The beneficial effects of this utility model by adopting the above technical solution are as follows: the first sealing surface in contact with the gate is designed with an inclination, and the second sealing surface is designed with a vertical orientation. As a result, when the valve is open, the gap between the gate and the first sealing surface gradually increases to reduce the torque of the valve stem. During the closing process, the gate and the first sealing surface gradually come into contact, which can also reduce the torque of the valve stem. Therefore, the valve is easier to open and close, and the processing is simpler. When the valve is fully closed, the gate and the second sealing surface are in a completely sealed state. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of a gate valve in the prior art;
[0014] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the main structure of the valve body of this utility model;
[0016] Figure 4 This is a schematic diagram of the main structure of the execution component of this utility model.
[0017] In the diagram: 1. Valve body; 2. Screw; 3. Actuating component; 30. Cylinder body; 31. First cylinder head; 32. Second cylinder head; 33. Piston; 34. Push rod; 35. Striking hammer; 36. First trigger; 37. Vertical rod; 38. Rocker plate; 39. Second trigger; 310. Medium inlet / outlet; 311. Internal threaded hole; 4. First sealing surface; 5. Valve stem; 6. Second sealing surface; 7. Gate. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.
[0019] Please see Figure 2-4 An embodiment of this utility model is provided: a one-way hydraulic light torque gate valve, including a valve body 1 and a valve stem 5 installed in the valve body 1; the valve body 1 has a first sealing surface 4 on the water inlet side and a second sealing surface 6 on the water outlet side; wherein, the first sealing surface 4 is inclinedly arranged in the valve body 1 and the second sealing surface 6 is vertically arranged in the valve body 1.
[0020] In summary, the first sealing surface 4, which contacts the gate 7, is designed with an inclination, while the second sealing surface 6 is designed with a vertical orientation. Compared with conventional inlet and outlet designs that are both angled, this valve is easier to open and close and simpler to manufacture.
[0021] Because this valve is a one-way valve, such as Figure 3 As shown, the medium flows from left to right, and the sealing performance is mainly reflected in: Figure 3 As shown, when the gate 7 moves from top to bottom, since the first sealing surface 4 is an inclined surface, during the downward movement of the gate 7, under the action of the inclined surface of the first sealing surface, the gate 7 is always moved closer to the second sealing surface. When the gate 7 is in the fully completed state, the gate 7 is tightly attached to the second sealing surface 6, ensuring the sealing of the valve body.
[0022] The labor-saving aspect is mainly reflected in the fact that, for example, Figure 3As shown, when the gate 7 moves upward, since the first sealing surface 4 is an inclined surface, the gap between the first sealing surface 4 and the second sealing surface 6 gradually increases as the gate 7 continues to move upward. Due to the gradual increase in the gap, the resistance when the gate 7 moves upward gradually decreases. Therefore, the valve is easier to open, which reduces the torque when the valve stem 5 rotates. At the same time, when the gate 7 moves downward, it can actively move closer to the first sealing surface 4 until it is tightly attached to the first sealing surface 4. Therefore, the valve stem only needs to push the gate 7 to move. The valve stem does not need to apply too much pressure to the gate 7 between the gate 7 and the first sealing surface 4, which helps to reduce the torque when the valve stem pushes the gate 7 to move downward.
[0023] Furthermore, the valve body 1 is provided with an actuation component 3; the actuation component 3 includes a cylinder 30, and a piston 33 is provided inside the cylinder 30. The piston 33 moves within the cylinder 30 to drive the valve stem 5 to move. Thus, the piston 33 can be used to drive the valve stem 5 to move.
[0024] Meanwhile, the bottom of the cylinder body 30 is provided with a first cylinder cover 31, and the upper end of the cylinder body 30 is provided with a second cylinder cover 32. Both the first cylinder cover 31 and the second cylinder cover 32 are provided with medium inlet / outlet 310 on their sides. Therefore, the piston 33 can be moved by a medium; wherein, the medium is preferably hydraulic oil.
[0025] Since the second cylinder head 32 is also equipped with a first trigger 36 and a second trigger 39, the push rod 34 on the piston 33 moves with the piston 33 to trigger either the first trigger 36 or the second trigger 39. Therefore, the valve can stop promptly when it completes its open or closed state, avoiding excessive movement that could damage the equipment or cause a leaky valve seal.
[0026] Furthermore, since the upper end of the valve stem 5 passes through the piston 33 and is adapted to the internal threaded hole 311 at the bottom of the push rod 34, the movement distance of the valve stem 5 can be directly transmitted to the push rod 34, thereby improving the sensitivity of the valve opening or closing.
[0027] To improve the reliability of valve opening or closing, the upper end of the push rod 34 passes through the second cylinder head 32 and is connected to the provided hammer 35, and triggers the first trigger 36 or the second trigger 39 through the hammer 35.
[0028] Furthermore, the second cylinder head 32 is also provided with a vertical rod 37, the top of which is rotatably connected to a rocker 38. When the hammer 35 pushes the rocker 38 to rotate, the other end of the rocker 38 presses against the second trigger 39, thereby activating the second trigger 39.
[0029] In summary, when the valve is open, the operating oil enters the cylinder 30 from below the piston 33, forcing the piston 33, valve rod 5, and push rod 34 to move upward synchronously. When fully open, the hammer at the top of the push rod 34 pushes the rocker plate 38 to rotate. When the second trigger 39 is triggered, the oil inlet valve switch at the bottom of the cylinder 30 is closed.
[0030] When the valve is closed, operating oil enters the cylinder 30 from above the piston 33, forcing the piston 33, push rod 34, and valve stem 5 to move downwards synchronously. When fully closed, the top of the push rod 34 strikes the hammer, pushing the first trigger 36. After the first trigger 36 is triggered, the oil inlet valve switch at the top of the cylinder 30 is closed. The first trigger 36 and the second trigger 39 are preferably oil pressure switchers.
[0031] To reduce the problem of the second trigger 39 being accidentally triggered, the end of the rocker 38 facing the second trigger 39 is always separated from the second trigger 39 when no external force is applied; that is, the end of the rocker 38 away from the second trigger 39 is designed with added weight, so that the weighted end of the rocker 38 moves downward under the action of gravity, so that the trigger end of the rocker 38 remains separated from the second trigger 39.
[0032] Furthermore, since the valve body 1 and the actuation component 3 are connected by a screw 2, the connection between the actuation component 3 and the valve body 1 is simple and convenient. Preferably, the screw 2 is a double-ended screw.
[0033] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A single-acting oil pressure low torque gate valve, characterized by: It includes a valve body (1) and a valve stem (5) installed in the valve body (1); the valve body (1) has a first sealing surface (4) on the water inlet side and a second sealing surface (6) on the water outlet side; wherein the first sealing surface (4) is inclinedly arranged in the valve body (1) and the second sealing surface (6) is vertically arranged in the valve body (1).
2. A light torque one-way oil pressure operated gate valve according to claim 1, characterized in that: The valve body (1) is provided with an actuation component (3); the actuation component (3) includes a cylinder (30), and a piston (33) is provided inside the cylinder (30). The piston (33) moves inside the cylinder (30) to drive the valve stem (5) to move.
3. A light torque one-way oil pressure operated gate valve as claimed in claim 2, wherein: The bottom of the cylinder body (30) is provided with a first cylinder cover (31), and the upper end of the cylinder body (30) is provided with a second cylinder cover (32). Both the first cylinder cover (31) and the second cylinder cover (32) are provided with medium inlet and outlet (310) on their sides.
4. A light torque one-way oil pressure operated gate valve as claimed in claim 3 wherein: The second cylinder head (32) is also provided with a first trigger (36) and a second trigger (39). The push rod (34) provided on the piston (33) moves with the piston (33) to trigger the first trigger (36) or trigger the second trigger (39).
5. A light torque one-way oil pressure operated gate valve as claimed in claim 4 wherein: The upper end of the valve stem (5) passes through the piston (33) and is adapted to be connected to the internal threaded hole (311) at the bottom of the push rod (34).
6. A light torque one-way oil pressure operated gate valve as claimed in claim 4 wherein: The upper end of the push rod (34) passes through the second cylinder head (32) and is connected to the provided hammer (35), and triggers the first trigger (36) or the second trigger (39) through the hammer (35).
7. A light torque one-way oil pressure operated gate valve as claimed in claim 6 wherein: The second cylinder head (32) is also provided with a vertical rod (37), the top of which is rotatably connected to a rocker (38). When the hammer (35) pushes the rocker (38) to rotate, the other end of the rocker (38) presses on the second trigger (39) to activate the second trigger (39).
8. A light torque one-way oil pressure operated gate valve as claimed in claim 7, wherein: When no external force is applied, the end of the rocker (38) facing the second trigger (39) is always separated from the second trigger (39).
9. A one-way hydraulic light torque gate valve according to claim 8, characterized in that: The valve body (1) and the actuation component (3) are connected by a screw (2).