Gate valve convenient to close
The design, which uses a conical head to push the movable plate and an oil system to automatically apply lubricating oil, solves the problem of difficult rotation caused by corrosion of the gate valve screw, and enables easy opening and closing of the gate valve.
Patent Information
- Application Number
- CN202520382039.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Gate valves are prone to rust on the screw surface during use, which makes rotation difficult and affects the ease of opening and closing the valve.
It adopts a conical head and movable plate structure. The conical head pushes the movable plate to move, and the oil system automatically applies lubricating oil to reduce frictional resistance, so as to achieve easy opening and closing of the valve.
The use of a conical head and a movable plate to automatically apply lubricating oil reduces frictional resistance during long-term valve use, making opening and closing easier and more convenient.
Smart Images
Figure CN223578912U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of gate valve, concretely is a gate valve convenient to close. BACKGROUND
[0002] Gate valve is a kind of valve widely used in pipeline, for connecting or cutting off medium in pipeline, in prior art, the closure of gate valve usually adopts screw rotation to drive valve piece to move downwards, to close valve, after a period of time of valve use, there is the condition of rust on the surface of screw, it is more laborious in the process of rotation, thus it can cause valve opening and closing to be very inconvenient, thereby can influence people's use, to solve the above problems, the inventor proposes a kind of gate valve convenient to close to solve the above problems. CONTENT OF UTILITY MODEL
[0003] To solve the problem that the surface of screw of the gate valve in the prior art is rusted, and the process of rotation is more laborious, thus causing the valve opening and closing to be very inconvenient, the utility model aims at providing a gate valve convenient to close.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a gate valve convenient to close, including valve body, the top surface of the valve body is liftable and is provided with valve rod, the top surface of the valve rod is fixedly connected with lead screw, the side wall of the lead screw is threadedly connected with rotating disc, the top end of the lead screw is fixedly connected with conical head, the top of the valve body is provided with box body, the inner wall of the box body is fixedly connected with cylinder, the inside of the cylinder is provided with spring, the cylinder mouth is slidably connected with movable rod, one end of the movable rod is fixedly connected with convex plate, the other end of the movable rod is fixedly connected with movable disc, the side of the convex plate away from the movable rod is fixedly connected with movable plate, the side wall of the movable plate is fixedly connected with convex rod, the end of the convex rod away from the movable plate is fixedly connected with first piston, the inner side wall of the box body is fixedly connected with oil pipe, the first piston is located in the oil pipe, the inner bottom of the oil pipe is provided with second piston, the inside of the oil pipe and between the first piston and the second piston is provided with oil, the side of the first piston away from the convex rod is fixedly connected with wire rope, the end of the wire rope away from the first piston is fixedly connected with the second piston, the end surface of the second piston is fixedly connected with convex disc, the side of the convex disc away from the second piston is fixedly connected with sponge.
[0005] Preferably, a bracket is fixedly connected to the side wall of the turntable, and the end of the bracket away from the turntable is fixedly connected to the outer side wall of the valve body. Connecting frames are fixedly connected to both sides of the housing, and the side of the connecting frame away from the housing is fixedly connected to the side wall of the bracket. The connecting frames are used to support and fix the housing. Rotating the turntable causes the lead screw to lift the valve stem, thereby lifting the valve plate to allow the gate valve to flow smoothly. When the lead screw rises, it can drive the conical head to rise. The conical head is smaller at the top and larger at the bottom, so that the top of the conical head can enter between two movable plates. There are two movable plates, which correspond to each other, and a gap is left between the two movable plates. Located between the two movable plates, the convex plate is located outside the cylinder, and the movable disc is located inside the cylinder. One end of the spring is fixedly connected to the inner wall of the cylinder, and the other end of the spring is fixedly connected to the side wall of the movable disc. When the lead screw rises, it can drive the conical head to rise, so that the conical head enters between the two movable plates. At this time, the two movable plates will move in opposite directions under the thrust of the conical head. Through the cooperation between the movable rod and the cylinder, the movable plates can move smoothly, and the movable disc can keep the spring in a compressed state. When the valve rod falls, until the conical head separates from the movable plate, the movable plate can return to its original position under the action of the spring force.
[0006] Preferably, a convex cylinder is fixedly connected to the bottom end of the oil pipe, the convex plate and the sponge are located inside the convex cylinder, and the convex plate is slidably connected to the convex cylinder. An oil filling cylinder is fixedly connected to the side wall of the convex cylinder, and the output end of the oil filling cylinder extends into the convex cylinder and corresponds to the sponge. When the two movable plates move in opposite directions, the first piston can be driven to move in the oil pipe under the action of the convex rod. The oil in the oil pipe can push the second piston to move, and then the sponge can be pushed out of the convex cylinder by the convex plate to cooperate with the rising screw. An opening and closing cover is provided at the lower part of the side wall of the housing. Opening the opening and closing cover allows lubricating oil to be poured into the oil filling cylinder, which can then flow to the sponge to make the sponge full of oil. When the sponge full of oil comes into contact with the screw, it can apply lubricating oil to the screw to ensure that the screw can still move smoothly after long-term use, reduce frictional resistance during operation, and make opening and closing easier.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: the valve is easy to open and close. When the valve stem moves upward so that the gate valve is in a smooth state, the conical head can make the two movable plates move in opposite directions. Then, under the action of the first piston and the second piston, and with the cooperation of the oil in the oil pipe, the sponge soaked in oil can come into contact with the lead screw to apply lubricating oil to the outer surface of the lead screw, thereby ensuring that the lead screw can still move smoothly after long-term use, reducing frictional resistance during operation, and making opening and closing easier and more convenient. Attached Figure Description
[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0009] Figure 1 This is a schematic diagram of the gate valve opening structure of this utility model.
[0010] Figure 2 This is a schematic diagram of the gate valve closing structure of this utility model.
[0011] Figure 3 This is a schematic diagram of the internal structure of the box body of this utility model.
[0012] Figure 4 This is an enlarged view of section A of this utility model.
[0013] Figure 5 This is a schematic diagram of the internal structure of the oil pipe of this utility model.
[0014] In the diagram: 1. Valve body; 2. Valve stem; 3. Lead screw; 4. Turntable; 5. Bracket; 6. Connecting frame; 7. Housing; 8. Opening / closing cover; 9. Conical head; 10. Movable plate; 11. Cylinder; 12. Movable rod; 13. Protruding plate; 14. Movable disc; 15. Spring; 16. Protruding rod; 17. First piston; 18. Oil pipe; 19. Rope; 20. Second piston; 21. Protruding cylinder; 22. Protruding disc; 23. Sponge; 24. Oil filling cylinder. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Example: Figures 1-5The utility model provides a convenient closing gate valve, including valve body 1, the top surface of valve body 1 can be lifted and set up valve stem 2, the top surface of valve stem 2 is fixedly connected with screw rod 3, the lateral wall of screw rod 3 is threadedly connected with carousel 4, the top of screw rod 3 is fixedly connected with conical head 9, the top of valve body 1 is provided with box 7, the inner wall of box 7 is fixedly connected with cylinder body 11, the inside of cylinder body 11 is provided with spring 15, the cylinder mouth of cylinder body 11 is inserted and slidably connected with movable rod 12, one end of movable rod 12 is fixedly connected with tab 13, the other end of movable rod 12 is fixedly connected with movable disc 14, the side of tab 13 away from movable rod 12 is fixedly connected with movable plate 10, the lateral wall of movable plate 10 is fixedly connected with lug 16, the end of lug 16 away from movable plate 10 is fixedly connected with first piston 17, the inner side wall of box 7 is fixedly connected with oil pipe 18, and first piston 17 is located in oil pipe 18, the inner bottom of oil pipe 18 is provided with second piston 20, and the inside of oil pipe 18 and between first piston 17 and second piston 20 are provided with oil, the side of first piston 17 away from lug 16 is fixedly connected with wire rope 19, one end of wire rope 19 away from first piston 17 is fixed with second piston 20, the end surface of second piston 20 is fixedly connected with convex disc 22, and the side of convex disc 22 away from second piston 20 is fixedly connected with sponge 23.
[0017] The lateral wall of carousel 4 is fixedly connected with support 5, one end of support 5 away from carousel 4 is fixedly connected with the outer side wall of valve body 1, and the both sides of box 7 are fixedly connected with connecting frame 6, and the side of connecting frame 6 away from box 7 is fixedly connected with the lateral wall of support 5.
[0018] Through adopting the above technical scheme, connecting frame 6 is used for supporting and fixing box 7, carousel 4 is rotated, screw rod 3 drives valve stem 2 to rise, and then valve plate rises, so that the gate valve is unobstructed, when screw rod 3 rises, conical head 9 can be driven to rise, conical head 9 is small at the top and large at the bottom, so that conical head 9 enters between two movable plates 10 through the top end of conical head 9.
[0019] The number of movable plates 10 is two, two movable plates 10 correspond to each other, and a gap is left between two movable plates 10, conical head 9 is located between two movable plates 10, tab 13 is located outside cylinder body 11, movable disc 14 is located inside cylinder body 11, one end of spring 15 is fixedly connected with the inner side wall of cylinder body 11, and the other end of spring 15 is fixedly connected with the lateral wall of movable disc 14.
[0020] By adopting the above technical scheme, when the lead screw 3 ascends, the conical head 9 can ascend to enter between the two movable plates 10, at this time, the two movable plates 10 move back under the thrust of the conical head 9, and through the cooperation of the movable rod 12 and the barrel 11, the movable plate 10 can move stably, and through the movable disc 14, the spring 15 can be in a compressed state, when the valve rod 2 falls, until the conical head 9 separates from the movable plate 10, under the elastic force of the spring 15, the movable plate 10 can return to the original position.
[0021] The bottom end of the oil pipe 18 is fixedly connected with a convex cylinder 21, a convex disc 22 and a sponge 23 are located in the convex cylinder 21, the convex disc 22 is slidably connected with the convex cylinder 21, the side wall of the convex cylinder 21 is fixedly connected with an oil filling cylinder 24, the output end of the oil filling cylinder 24 extends into the convex cylinder 21, and the output end of the oil filling cylinder 24 corresponds to the sponge 23.
[0022] By adopting the above technical scheme, when the two movable plates 10 move back, under the action of the convex rod 16, the first piston 17 can move in the oil pipe 18, the second piston 20 can be pushed to move through the oil liquid in the oil pipe 18, and then the sponge 23 can be pushed out of the convex cylinder 21 through the convex disc 22 to cooperate with the ascending lead screw 3, the lower part of the side wall of the box body 7 is provided with an opening and closing cover 8, the opening and closing cover 8 is opened, and then the lubricating oil can be poured into the oil filling cylinder 24, and then can flow to the sponge 23, so that the sponge 23 is full of oil liquid, when the sponge 23 full of oil liquid contacts the lead screw 3, the lead screw 3 is smeared with lubricating oil, so that the lead screw 3 can still move smoothly after long-term use, the frictional resistance during operation is reduced, and the opening and closing is more easy.
[0023] Working principle: when the gate valve needs to be unobstructed, the rotating disc 4 is rotated, so that the lead screw 3 drives the valve rod 2 to rise, and then the valve plate rises, so that the gate valve is unobstructed, and when the lead screw 3 ascends, the conical head 9 can ascend to enter between the two movable plates 10, at this time, the two movable plates 10 move back under the thrust of the conical head 9, and through the cooperation of the movable rod 12 and the barrel 11, the movable plate 10 can move stably, and the spring 15 at this time is in a compressed state;
[0024] and when the two movable plates 10 move back, under the action of the convex rod 16, the first piston 17 can move in the oil pipe 18, the second piston 20 can be pushed to move through the oil liquid in the oil pipe 18, and then the sponge 23 full of oil liquid can be pushed out of the convex cylinder 21 through the convex disc 22 to cooperate with the ascending lead screw 3, so as to smear the lead screw 3 with lubricating oil, so that the lead screw 3 can still move smoothly after long-term use, the frictional resistance during operation is reduced, and the opening and closing is more easy.
[0025] When the sponge 23 needs to be oiled, the open-close cover 8 is opened, the lubricating oil is poured into the oil filling cylinder 24, and then can flow to the sponge 23, so that the sponge 23 is immersed in the oil;
[0026] When the valve stem 2 falls to make the gate valve unobstructed, at this time, the conical head 9 is separated from the movable plate 10, the movable plate 10 can return to the original position under the action of the spring 15, the first piston 17 can move back under the action of the convex rod 16, and the second piston 20 can be pulled back under the action of the wire 19, so that the sponge 23 is retracted into the convex cylinder 21.
[0027] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.
Claims
1. A gate valve that is easy to close, comprising a valve body (1), characterized in that: A valve stem (2) is provided on the top surface of the valve body (1) and can be raised and lowered. A screw rod (3) is fixedly connected to the top surface of the valve stem (2). A turntable (4) is threadedly connected to the side wall of the screw rod (3). A conical head (9) is fixedly connected to the top of the screw rod (3). A box (7) is provided above the valve body (1). A cylinder (11) is fixedly connected to the inner wall of the box (7). A spring (15) is provided inside the cylinder (11). A movable rod (12) is slidably connected to the opening of the cylinder (11). A protruding plate (13) is fixedly connected to one end of the movable rod (12). A movable disc (14) is fixedly connected to the other end of the movable rod (12). A movable plate (10) is fixedly connected to the side of the protruding plate (13) facing away from the movable rod (12). A movable plate (10) is fixedly connected to the side wall of the movable plate (10). A protruding rod (16) is attached, and a first piston (17) is fixedly connected to the end of the protruding rod (16) away from the movable plate (10). An oil pipe (18) is fixedly connected to the inner side wall of the box (7). The first piston (17) is located inside the oil pipe (18). A second piston (20) is provided at the bottom of the oil pipe (18). Oil is provided inside the oil pipe (18) and between the first piston (17) and the second piston (20). A rope (19) is fixedly connected to the side of the first piston (17) facing away from the protruding rod (16). The end of the rope (19) away from the first piston (17) is fixed to the second piston (20). A convex plate (22) is fixedly connected to the end face of the second piston (20). A sponge (23) is fixedly connected to the side of the convex plate (22) facing away from the second piston (20).
2. The gate valve for easy closure as described in claim 1, characterized in that, A bracket (5) is fixedly connected to the side wall of the turntable (4), and the end of the bracket (5) away from the turntable (4) is fixedly connected to the outer side wall of the valve body (1).
3. A gate valve for easy closure as described in claim 2, characterized in that, Both sides of the box (7) are fixedly connected to a connecting frame (6), and the side of the connecting frame (6) away from the box (7) is fixedly connected to the side wall of the bracket (5).
4. A gate valve for easy closure as described in claim 1, characterized in that, There are two movable plates (10), the two movable plates (10) correspond to each other, and there is a gap between the two movable plates (10), and the conical head (9) is located between the two movable plates (10).
5. A gate valve for easy closure as described in claim 1, characterized in that, The convex plate (13) is located outside the cylinder (11), and the movable disk (14) is located inside the cylinder (11).
6. A gate valve for easy closure as described in claim 1, characterized in that, One end of the spring (15) is fixedly connected to the inner wall of the cylinder (11), and the other end of the spring (15) is fixedly connected to the side wall of the movable disc (14).
7. A gate valve for easy closure as described in claim 1, characterized in that, The bottom end of the oil pipe (18) is fixedly connected to a convex cylinder (21), the convex disc (22) and the sponge (23) are located inside the convex cylinder (21), and the convex disc (22) and the convex cylinder (21) are slidably connected.
8. A gate valve for easy closure as described in claim 7, characterized in that, An oil filling tube (24) is fixedly connected to the side wall of the convex cylinder (21). The output end of the oil filling tube (24) extends into the convex cylinder (21), and the output end of the oil filling tube (24) corresponds to the sponge (23).