Two-piece multi-station seamless wear-resistant regulating gate valve

Abstract

The utility model provides a kind of two-piece type multi-station seamless wear-resistant regulating gate valve, belong to valve technical field, including regulating control device, the regulating control device includes valve body, the circumferential surface of the valve body is fixedly connected with valve seat, the sealing device includes rectangular plate, the bottom end fixedly connected with warped plate of the rectangular plate.When valve plate promotes rectangular plate to displace downward, so that rectangular plate bottom end fixedly connected warped plate immediately occurs lever movement with its inside hinged support as fulcrum, further make warped plate far from the end of rectangular plate and lift upward, further make protective cover provide protection for air bag, so as to solve the problem that gate valve is usually relied on metal sealing between valve plate and valve body, there is also a little leakage, so as to cause the precision fit of sealing surface to be damaged rapidly, finally lead to the failure of valve regulating function, wear-resistant characteristic loss, seriously affect the continuous and stable operation of system.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and more specifically, to a two-piece, multi-position, seamless, wear-resistant regulating gate valve. Background Technology

[0002] The development of two-piece, multi-position seamless wear-resistant regulating gate valves stems from the industrial demand for harsh operating conditions. Traditional gate valves are prone to erosion and wear, and have poor regulating performance, while dedicated regulating valves are expensive and not wear-resistant. In the early stages of development, the high-pressure shut-off problem was solved by adopting a two-piece self-tightening sealing structure. Subsequently, wear-resistant alloys and surface engineering were incorporated to achieve "wear resistance," and the flow channel and actuator control were optimized to achieve "seamless regulation in multiple positions."

[0003] (1) Currently, when a two-piece multi-position seamless wear-resistant regulating gate valve is closed, the gate valve usually relies on metal sealing between the valve plate and the valve body, and a small amount of leakage will occur, which will quickly destroy the precision fit of the sealing surface, ultimately causing the valve regulation function to fail and the wear-resistant properties to be lost, seriously affecting the continuous and stable operation of the system.

[0004] (2) At the same time. Existing traditional two-piece multi-position wear-resistant gate valves usually use flange bolt connections, which means that when replacing or maintaining, a lot of time and manpower must be spent disassembling the bolts of the entire pipe section. Not only is the operation efficiency extremely low, but it also greatly increases the safety risks and downtime costs in narrow or high-risk environments, which seriously restricts the rapid recovery of the production system and the convenience of maintenance. Therefore, a two-piece multi-position seamless wear-resistant regulating gate valve is proposed. Utility Model Content

[0005] The purpose of this invention is to address the problem of leakage in gate valves when they are closed.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] The present invention is as follows: A two-piece multi-position seamless wear-resistant regulating gate valve includes a regulating control device. The regulating control device includes a valve body, a valve seat is fixedly connected to the circumference of the valve body, a top cover is provided at the end of the valve seat away from the valve body, a support mechanism is fixedly connected at the end of the top cover away from the valve seat, a threaded rod passes through the support mechanism and is rotatably connected to the support mechanism, a handle is fixedly connected to the top of the threaded rod, a rotating shaft is fixedly connected to the end of the threaded rod away from the handle, a valve plate is fixedly connected to the end of the rotating shaft away from the threaded rod, a connecting plate is fixedly connected to one end of the valve body, a disc plate is provided on the side of the connecting plate away from the valve body, a sealing device is provided inside the regulating control device, the sealing device includes a rectangular plate, a rocker plate is fixedly connected to the bottom end of the rectangular plate, and a spring A is fixedly connected to the bottom end of the rocker plate near the rectangular plate.

[0008] As a preferred technical solution of this utility model, the rocker is internally hinged with a bracket, a base plate is fixedly connected to the bottom end of the rocker away from the rectangular plate, a spring B is fixedly connected to the side of the base plate away from the rocker, an airbag is fixedly connected to the side of the base plate away from the spring B, and a protective cover is fixedly connected to the circumferential surface of the airbag away from the base plate.

[0009] As a preferred technical solution of this utility model, a convex groove is provided on the inner circumferential surface of the valve body, a support mechanism and a handle are respectively passed through the circumferential surface of the threaded rod and are rotatably connected to the threaded rod, and multiple grooves and through holes are provided inside the connecting plate.

[0010] As a preferred technical solution of this utility model, the adjustment and control device further includes a disassembly and assembly device, which includes a clamping plate. A cylindrical plate is provided on one side of the clamping plate. An inclined plate is fixedly connected to the circumferential surface of the cylindrical plate. A wedge is provided at one end of the inclined plate. A spring telescopic rod A is fixedly connected to one side of the wedge. A long rod is fixedly connected to the side of the wedge near the spring telescopic rod A. A sliding plate passes through the circumferential surface of the cylindrical plate away from the clamping plate and is slidably connected to the cylindrical plate. A clamping block is provided at the end of the cylindrical plate away from the clamping plate. A spring telescopic rod B is fixedly connected to the end of the clamping block away from the cylindrical plate.

[0011] As a preferred technical solution of this utility model, the card plate is fixedly connected to the surface of the disc plate near the connecting plate, the cylindrical plate is provided with a conical plate at one end near the card block, and the spring telescopic rod A is provided with a long plate with a groove.

[0012] As a preferred technical solution of this utility model, the end of the spring telescopic rod A away from the wedge is fixedly connected to the groove surface of the long plate, the circumferential surface of the card plate is provided with a through hole, and the end of the spring telescopic rod B away from the card is fixedly connected to the groove surface inside the connecting plate.

[0013] As a preferred technical solution of this utility model, the surface of the protective cover has two through slots, and the rectangular plate is slidably connected to the through slots on the surface of the protective cover. The two ends of the bracket are fixedly connected to one side surface of the convex groove on the inner circumferential surface of the valve body. The end of the spring A away from the rocker plate is fixedly connected to the surface of the convex groove on the inner circumferential surface of the valve body, and the end of the spring B away from the bottom plate is fixedly connected to the bottom surface of the convex groove on the inner circumferential surface of the valve body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By using a rectangular plate, when the valve plate pushes the rectangular plate downward, the rocker plate fixedly connected to the bottom of the rectangular plate will then move with its internal hinged bracket as the fulcrum, causing the end of the rocker plate away from the rectangular plate to lift upward, thus providing protection for the airbag with the protective cover. This solves the problem that gate valves usually rely on metal seals between the valve plate and the valve body, which can still cause slight leakage, leading to rapid damage to the precision fit of the sealing surface, ultimately resulting in the failure of the valve's regulating function, loss of wear resistance, and serious impact on the continuous and stable operation of the system.

[0016] 2. With the set clamp plate, when the clamp plate is fixedly installed on the disc plate, during installation, the cylindrical plate is aligned and pushed into the interface of the connecting plate. This causes the surface of the disc plate to push the cylindrical plate, which slides through the through hole opened inside the connecting plate, to move into the connecting plate, thereby separating the disc plate and the connecting plate. This solves the problem that when replacing or maintaining, it is necessary to spend a lot of time and manpower to disassemble the bolts of the entire pipe section. This not only has extremely low work efficiency, but also greatly increases safety risks and downtime costs in narrow or high-risk environments, seriously restricting the rapid recovery of the production system and the convenience of maintenance. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a two-piece multi-position seamless wear-resistant regulating gate valve provided by this utility model;

[0018] Figure 2 A three-dimensional structural diagram of the valve seat section of a two-piece multi-position seamless wear-resistant regulating gate valve provided for this utility model;

[0019] Figure 3 A schematic diagram of the cross-sectional structure of a two-piece multi-position seamless wear-resistant regulating gate valve provided by this utility model;

[0020] Figure 4 A three-dimensional structural diagram of the bracket of a two-piece multi-position seamless wear-resistant regulating gate valve provided by this utility model;

[0021] Figure 5 A three-dimensional structural diagram of the cross-section of the connecting plate of a two-piece multi-station seamless wear-resistant regulating gate valve provided by this utility model.

[0022] Figure 6 A three-dimensional structural diagram of the locking block and spring telescopic rod at point B of a two-piece multi-position seamless wear-resistant regulating gate valve provided by this utility model.

[0023] The diagram indicates: 1. Adjustment and control device; 101. Valve body; 102. Valve seat; 103. Top cover; 104. Support mechanism; 105. Threaded rod; 106. Handle; 107. Connecting plate; 108. Disc plate; 109. Valve plate; 110. Rotating shaft; 2. Sealing device; 201. Rectangular plate; 202. Rocker; 203. Bracket; 204. Spring A; 205. Airbag; 206. Base plate; 207. Spring B; 208. Protective cover; 3. Disassembly and assembly device; 301. Clamping plate; 302. Cylindrical plate; 303. Inclined plate; 304. Wedge; 305. Spring telescopic rod A; 306. Long rod; 307. Slide plate; 308. Clamping block; 309. Spring telescopic rod B. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] like Figure 1 , Figure 2As shown, this embodiment proposes a two-piece multi-position seamless wear-resistant regulating gate valve, including a regulating control device 1. The regulating control device 1 includes a valve body 101, a valve seat 102 fixedly connected to the circumferential surface of the valve body 101, a top cover 103 provided at the end of the valve seat 102 away from the valve body 101, a support mechanism 104 fixedly connected to the end of the top cover 103 away from the valve seat 102, a threaded rod 105 passing through the interior of the support mechanism 104 and rotatably connected to the support mechanism 104, a handle 106 fixedly connected to the top end of the threaded rod 105, and a screw thread 105 threaded rod ... A rotating shaft 110 is fixedly connected to the end of the threaded rod 105 away from the handle 106. A valve plate 109 is fixedly connected to the end of the rotating shaft 110 away from the threaded rod 105. A connecting plate 107 is fixedly connected to one end of the valve body 101. A disc plate 108 is provided on the side of the connecting plate 107 away from the valve body 101. A sealing device 2 is provided inside the regulating control device 1. The sealing device 2 includes a rectangular plate 201. A rocker plate 202 is fixedly connected to the bottom end of the rectangular plate 201. A spring A204 is fixedly connected to the bottom end of the rocker plate 202 near the rectangular plate 201.

[0029] like Figure 3 , Figure 4 As shown, in a preferred embodiment, based on the above method, a bracket 203 is further hinged inside the rocker 202, a base plate 206 is fixedly connected to the bottom end of the rocker 202 away from the rectangular plate 201, a spring B207 is fixedly connected to the side of the base plate 206 away from the rocker 202, an airbag 205 is fixedly connected to the side of the base plate 206 away from the spring B207, and a protective cover 208 is fixedly connected to the circumferential surface of the airbag 205 away from the base plate 206. With the above design, the spring B207 provides a restoring elastic force to the base plate 206 and maintains the pre-tight seal of the airbag 205 in the initial state.

[0030] like Figure 1 , Figure 2 As shown, in a preferred embodiment, based on the above method, a convex groove is further provided on the inner circumferential surface of the valve body 101, and a support mechanism 104 and a handle 106 are respectively passed through the circumferential surface of the threaded rod 105 and are rotatably connected to the threaded rod 105. The connecting plate 107 has multiple grooves and through holes inside. Through the above design, the torque of rotating the handle 106 is converted into the linear lifting and lowering motion of the threaded rod 105, thereby accurately controlling the opening and closing position of the valve plate 109.

[0031] like Figure 5 , Figure 6As shown, in a preferred embodiment, based on the above method, the adjustment control device 1 further includes a disassembly and assembly device 3. The disassembly and assembly device 3 includes a clamping plate 301, a cylindrical plate 302 is provided on one side of the clamping plate 301, an inclined plate 303 is fixedly connected to the circumferential surface of the cylindrical plate 302, a wedge block 304 is provided at one end of the inclined plate 303, a spring telescopic rod A305 is fixedly connected to one side of the wedge block 304, a long rod 306 is fixedly connected to the side of the wedge block 304 near the spring telescopic rod A305, a sliding plate 307 passes through the circumferential surface of the cylindrical plate 302 away from the clamping plate 301 and is slidably connected to the cylindrical plate 302, a locking block 308 is provided at the end of the cylindrical plate 302 away from the clamping plate 301, and a spring telescopic rod B309 is fixedly connected to the end of the locking block 308 away from the cylindrical plate 302. With the above design, the inclined plate 303 guides and squeezes the wedge block 304 when it is displaced, so that it can lock after contraction, thereby achieving rapid locking.

[0032] like Figure 5 , Figure 6 As shown, in a preferred embodiment, based on the above method, the card plate 301 is further fixedly connected to the surface of the disc plate 108 near the connecting plate 107, the cylindrical plate 302 is provided with a conical plate at one end near the card block 308, and the spring telescopic rod A305 is provided with a long plate with a groove. With the above design, the card plate 301 and the internal mechanism of the connecting plate 107 cooperate to realize the quick docking and locking of the valve.

[0033] like Figure 5 , Figure 6 As shown, in a preferred embodiment, based on the above method, the end of the spring telescopic rod A305 away from the wedge 304 is fixedly connected to the groove surface of the long plate, the circumferential surface of the clamping plate 301 is provided with a through hole, and the end of the spring telescopic rod B309 away from the clamping block 308 is fixedly connected to the groove surface inside the connecting plate 107. With the above design, the spring telescopic rod A305 provides radial elastic force to the wedge 304.

[0034] like Figure 3 , Figure 4 As shown, in a preferred embodiment, based on the above method, the protective cover 208 has two through slots on its surface, and the rectangular plate 201 is slidably connected to the through slots on the surface of the protective cover 208. The two ends of the bracket 203 are fixedly connected to one side of the convex groove on the inner circumferential surface of the valve body 101. The end of the spring A204 away from the rocker 202 is fixedly connected to the surface of the convex groove on the inner circumferential surface of the valve body 101. The end of the spring B207 away from the bottom plate 206 is fixedly connected to the bottom surface of the convex groove on the inner circumferential surface of the valve body 101. With the above design, the bracket 203 provides a stable hinge fulcrum for the rocker 202, ensuring that its lever movement is accurate and reliable.

[0035] Specifically, in use, a two-piece multi-position seamless wear-resistant regulating gate valve works as follows: First, the valve body 101 serves as the main pressure-bearing and flow-passing component. The valve seat 102, fixedly connected to its circumferential surface, and the top cover 103 together form the static sealing boundary of the valve cavity. This allows the support mechanism 104 to be fixed to the top cover 103, providing rotational support for the threaded rod 105. When the operator rotates the handle 106 fixed to the top of the threaded rod 105, the threaded rod 105 rotates relative to the support mechanism 104. This rotational motion is then converted into linear lifting displacement of the rotating shaft 110 via the threaded joint. This causes the bottom end of the rotating shaft 110 to be fixedly connected to the valve plate 109, thereby precisely controlling the axial position of the valve plate 109 within the valve body 101, realizing the valve's opening, closing, and intermediate multi-position flow regulation functions. The connecting plate 107 at one end of the valve body 101 and the matching disc plate 108 together constitute the valve's pipeline connection interface.

[0036] Secondly, when the valve plate 109 pushes the rectangular plate 201 downward, the rocker 202 fixedly connected to the bottom of the rectangular plate 201 will then move with the internal hinged bracket 203 as the fulcrum, thereby causing the end of the rocker 202 away from the rectangular plate 201 to lift upward, thereby pushing the bottom plate 206 fixedly connected to its bottom to move upward against the preload of the spring B207, thereby causing the bottom plate 206 to push the airbag 205 fixedly connected above it, thereby causing the circumferential surface of the airbag 205 to be tightly pressed against the inner wall of the protective cover 208 and the sealing surface of the convex groove inside the valve body 101, forming a flexible main sealing barrier. At the same time, the rocker 202 moves downward near the rectangular plate 201 and compresses the spring A204, thereby providing the spring A204 with a restoring force and pre-tightening for the initial seal. This allows the protective cover 208 to protect the airbag 205, thus solving the problem that gate valves usually rely on metal seals between the valve plate 109 and the valve body 101, which can lead to slight leakage, resulting in rapid damage to the precision fit of the sealing surface, ultimately causing the valve's regulating function to fail, its wear-resistant properties to be lost, and seriously affecting the continuous and stable operation of the system.

[0037] Finally, when the clamping plate 301 is fixedly installed on the disc plate 108, during installation, the cylindrical plate 302 is aligned and pushed into the interface of the connecting plate 107. This causes the surface of the disc plate 108 to push the cylindrical plate 302, which slides through the through hole in the connecting plate 107, to move inward into the connecting plate 107. This displacement of the cylindrical plate 302 causes the inclined plate 303, which is fixedly connected to the circumference of the cylindrical plate 302, to move synchronously. As a result, the inclined plate 303, which is fixedly connected to the circumference of the cylindrical plate 302, will contact and squeeze the wedge block 304 during the pushing process, thereby forcing the wedge block 304 to overcome the elastic force of the spring telescopic rod A305 and move inward. The contraction causes the wedge 304, under compression, to drive the long rod 306, which is fixedly connected to the inclined plate 304 at the end away from the inclined plate 304, into the through hole on the circumferential surface of the clamping plate 301. This fixes the clamping plate 301 in place, preventing it from being pulled out, thus creating a lock. Simultaneously, the cylindrical plate 302, during displacement, drives the conical plate located at the end away from the disc plate 108 to push the clamping block 308 inward. When the conical plate passes over the inclined surface of the clamping block 308, the spring telescopic rod B309 pushes the clamping block 308 outward and into the slot, thus fixing the clamping plate 301 and the long rod 306, forming a second locking mechanism. When disassembly is required... Then, by moving the cylindrical plate 302 further inward toward the circular connecting plate 107, the sliding plate 307, which slides through the circumference of the cylindrical plate 302, presses against the inclined surface of the locking block 308 again. This causes the spring telescopic rod B309, which is fixedly connected to one end of the locking block 308, to move the locking block 308 backward. When the locking block 308 returns to its original position, because the end of the sliding plate 307 closest to the conical plate is inclined, the inclined surface of the sliding plate 307 will contact the inclined surface of the locking block 308 during the process of pulling out the disc plate 108. This causes the cylindrical plate 302 to move backward again, which in turn causes the inclined plate 302 to move. 03 displacement, so that when the inclined plate 303 is displaced, the wedge 304, which is squeezed by the inclined plate 303, will be pushed back to its original position by the spring telescopic rod A305, thereby causing the wedge 304 to displace and drive the long rod 306 to displace synchronously, thereby causing the long rod 306 to disengage from the through hole on the circumferential surface of the clamping plate 301, and thus separating the disc plate 108 and the connecting plate 107. This solves the problem that when replacing or maintaining, a lot of time and manpower must be spent to disassemble the bolts of the entire pipe section, which not only has extremely low work efficiency, but also greatly increases safety risks and downtime costs in narrow or high-risk environments, seriously restricting the rapid recovery and maintenance convenience of the production system.

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A two-piece, multi-position seamless wear-resistant regulating gate valve, comprising a regulating control device (1), characterized in that, The regulating control device (1) includes a valve body (101), a valve seat (102) is fixedly connected to the circumferential surface of the valve body (101), a top cover (103) is provided at the end of the valve seat (102) away from the valve body (101), a support mechanism (104) is fixedly connected at the end of the top cover (103) away from the valve seat (102), a threaded rod (105) passes through the inside of the support mechanism (104) and is rotatably connected to the support mechanism (104), a handle (106) is fixedly connected to the top end of the threaded rod (105), and a handle (106) is fixedly connected at the end of the threaded rod (105) away from the handle (106). There is a rotating shaft (110), and a valve plate (109) is fixedly connected to one end of the rotating shaft (110) away from the threaded rod (105). A connecting plate (107) is fixedly connected to one end of the valve body (101). A disc plate (108) is provided on the side of the connecting plate (107) away from the valve body (101). A sealing device (2) is provided inside the regulating control device (1). The sealing device (2) includes a rectangular plate (201). A rocker plate (202) is fixedly connected to the bottom end of the rectangular plate (201). A spring A (204) is fixedly connected to the bottom end of the rocker plate (202) near the side of the rectangular plate (201).

2. The two-piece multi-position seamless wear-resistant regulating gate valve according to claim 1, characterized in that, The rocker (202) is internally hinged with a bracket (203). A base plate (206) is fixedly connected to the bottom end of the rocker (202) away from the rectangular plate (201). A spring B (207) is fixedly connected to the side of the base plate (206) away from the rocker (202). An airbag (205) is fixedly connected to the side of the base plate (206) away from the spring B (207). A protective cover (208) is fixedly connected to the circumferential surface of the airbag (205) away from the base plate (206).

3. The two-piece multi-position seamless wear-resistant regulating gate valve according to claim 1, characterized in that, The valve body (101) has a convex groove on its inner circumferential surface. The threaded rod (105) has a support mechanism (104) and a handle (106) passing through its circumferential surface and is rotatably connected to the threaded rod (105). The connecting plate (107) has multiple grooves and through holes inside.

4. A two-piece, multi-position seamless wear-resistant regulating gate valve according to claim 1, characterized in that, The adjustment and control device (1) further includes a disassembly and assembly device (3), which includes a clamping plate (301). A cylindrical plate (302) is provided on one side of the clamping plate (301). An inclined plate (303) is fixedly connected to the circumferential surface of the cylindrical plate (302). A wedge (304) is provided at one end of the inclined plate (303). A spring telescopic rod A (305) is fixedly connected to one side of the wedge (304). A long rod (306) is fixedly connected to the side near the spring telescopic rod A (305). A sliding plate (307) passes through the circumferential surface of the cylindrical plate (302) away from the clamping plate (301) and is slidably connected to the cylindrical plate (302). A clamping block (308) is provided at the end of the cylindrical plate (302) away from the clamping plate (301). A spring telescopic rod B (309) is fixedly connected to the end of the clamping block (308) away from the cylindrical plate (302).

5. A two-piece, multi-position seamless wear-resistant regulating gate valve according to claim 4, characterized in that, The card plate (301) is fixedly connected to the surface of the disc plate (108) near the connecting plate (107). The cylindrical plate (302) has a conical plate at one end near the card block (308). The spring telescopic rod A (305) has a long plate with a groove.

6. A two-piece, multi-position seamless wear-resistant regulating gate valve according to claim 4, characterized in that, The end of the spring telescopic rod A (305) away from the wedge (304) is fixedly connected to the groove surface of the long plate. The circumferential surface of the clamping plate (301) is provided with a through hole. The end of the spring telescopic rod B (309) away from the clamping block (308) is fixedly connected to the groove surface inside the connecting plate (107).

7. A two-piece, multi-position seamless wear-resistant regulating gate valve according to claim 2, characterized in that, The protective cover (208) has two through slots on its surface, and the rectangular plate (201) is slidably connected to the through slots on the surface of the protective cover (208). The two ends of the bracket (203) are fixedly connected to one side of the convex groove on the inner circumferential surface of the valve body (101). The end of the spring A (204) away from the rocker (202) is fixedly connected to the surface of the convex groove on the inner circumferential surface of the valve body (101). The end of the spring B (207) away from the bottom plate (206) is fixedly connected to the bottom surface of the convex groove on the inner circumferential surface of the valve body (101).

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