Electric double-gate-plate flat gate valve

Abstract

The utility model relates to the technical field of flat gate valves, in particular to an electric double-gate-plate flat gate valve which comprises a gate body, a gate plate is arranged in the gate body, a groove is formed in the middle of the bottom end of the gate plate, an upper wedge block and a lower wedge block are arranged in the top end of the gate plate, the top end of the gate body is fixedly connected with a valve cover, and the top end of the upper wedge block is fixedly connected with a valve rod through a valve plate. A packing pressing sleeve is fixed in the top end of the valve deck, the bottom end of the packing pressing sleeve is sleeved with an upper sealing seat, the top end of the packing pressing sleeve is fixedly connected with a packing pressing plate, one side of the packing pressing plate is fixedly connected with the valve deck through a second stud, and the top end of the valve deck is fixedly connected with the support through a third stud and a third nut. A user can firstly combine and connect the upper wedge block and the lower wedge block and fixedly connect the upper wedge block and the lower wedge block with the flashboard on the outer side, the double-flashboard type structure can improve the structural strength and the pressure on fluid, and the electric actuating mechanism at the top end can automatically drive the valve rod structure to rotate and drive under the control of an external structure.

Description

Technical Field

[0001] This utility model relates to the field of flat gate valve technology, specifically to an electric double-gate flat gate valve. Background Technology

[0002] In industrial pipeline systems, valves are key components controlling the flow of fluid media, and their performance directly affects the overall system's operational efficiency and safety. Traditional single-gate valves have revealed numerous problems during long-term use. For example, under high pressure differential conditions, the uneven pressure on both sides of the gate can easily lead to gate deformation, resulting in poor sealing and media leakage. This not only wastes resources but may also pollute the environment. In the transportation of flammable and explosive media, it can even pose serious safety hazards.

[0003] With the continuous expansion of industrial production scale and the increasing complexity of production processes, the performance requirements for valves are becoming increasingly stringent. In industries such as oil, natural gas, and chemicals, the pressure and temperature ranges for media transportation are constantly expanding, leading to higher expectations for valve opening and closing speeds and the degree of automation. For example, in long-distance oil and gas pipelines, valves need to respond quickly to control commands and achieve remote automated operation to improve the safety and reliability of pipeline operation; traditional manual valves are difficult to meet these requirements. Moreover, in the transportation of media containing impurities and particles, the erosion resistance and wear resistance of ordinary valves are insufficient, and frequent valve repairs and replacements not only increase maintenance costs but also affect the continuity of production. Utility Model Content

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an electric double-gate flat plate gate valve, which can effectively solve the problems in the existing technology.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides an electric double-gate flat gate valve, including a gate body, a gate plate disposed within the gate body, a groove formed in the middle of the bottom end of the gate plate, and an upper wedge and a lower wedge disposed inside the top end of the gate plate. The top end of the gate body is fixedly connected to the valve cover, and the top end of the upper wedge is fixedly connected to the valve stem via the valve plate. A packing sleeve is fixedly disposed inside the top end of the valve cover, and an upper sealing seat is fitted at the bottom end of the packing sleeve. The top end of the packing sleeve is fixedly connected to a packing plate, and one side of the packing plate is fixedly connected to the valve cover via a second stud. The top end of the valve cover is fixedly connected to a bracket via a third stud and a third nut. The top end of the bracket is fixed to an electric actuator, and the output end of the electric actuator is fixedly connected to the top end of the valve stem.

[0009] Furthermore, the gate body and the valve cover are fixedly connected by a first nut and a first stud, and the contact surfaces of the gate body and the valve cover are both flange structures, with a gasket fitted between them.

[0010] Furthermore, the top of the valve cover is provided with a threaded groove structure, and the inner side wall of the packing plate is provided with an inner groove. An inner ring is fixed in the inner groove. The cross-section of the inner groove is L-shaped, and a convex ring is fixed at the bottom of the inner ring. The convex ring is fixedly engaged with the inner groove. The outer side wall of the packing plate is provided with a threaded structure, and the packing plate is threadedly fixed to the valve cover.

[0011] Furthermore, a drain plug is provided in the central cavity of the gate body, and a spring is fixed at the bottom of the gate plate.

[0012] Furthermore, grooves are provided on the sides of both the upper and lower wedges, and the upper and lower wedges are fitted together and fixedly connected. A sealing ring is fitted between the outer side wall of the upper and lower wedges and the gate body.

[0013] Furthermore, the outer side of the second stud is fixedly connected to the second nut.

[0014] Beneficial effects

[0015] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0016] This utility model features a packing pressure plate structure. This structure can be fixedly connected to the valve cover by engaging with the external threaded structure. The inner groove on the inner side of the packing pressure plate is fixed and locked by the convex ring structure of the inner ring structure, thereby fixing the upper sealing seat, packing, and valve stem. The outer side of the packing pressure plate is then fixedly connected to the valve cover by a second nut and a second stud. Therefore, in use, this device can be connected by a threaded structure and bolts, which can enhance the effect of the fixed connection.

[0017] In this device, through the combination structure of spring, gate, upper wedge and lower wedge, the user can first combine and connect the upper wedge and lower wedge, and fix them to the outer gate. The double gate structure can improve the structural strength and the pressure on the fluid. The electric actuator at the top can automatically drive the valve stem structure to rotate under the control of the external structure. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the packing pressure plate in this utility model;

[0022] Figure 4 This is a structural exploded view of the packing pressure plate in this utility model.

[0023] The labels in the diagram represent: 1. Gate body; 2. Drain plug; 3. Spring; 4. Gate plate; 5. Lower wedge; 6. Upper wedge; 7. Valve plate; 8. First nut; 9. First stud; 10. Gasket; 11. Upper sealing seat; 12. Packing; 13. Valve stem; 14. Second stud; 15. Packing sleeve; 16. Second nut; 17. Packing pressure plate; 171. Inner ring; 172. Inner groove; 173. Raised ring; 18. Third nut; 19. Third stud; 20. Bracket; 21. Electric actuator; 22. Valve cover. 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. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Example: Electric double-gate flat gate valve, see attached diagram. Figure 1 - Appendix Figure 4 The system includes a gate body 1, a gate plate 4 inside the gate body 1, a groove in the middle of the bottom end of the gate plate 4, and an upper wedge block 6 and a lower wedge block 5 inside the top end of the gate plate 4. The top end of the gate body 1 is fixedly connected to the valve cover 22. The top end of the upper wedge block 6 is fixedly connected to the valve stem 13 through the valve plate 7. A packing sleeve 15 is fixed inside the top end of the valve cover 22. An upper sealing seat 11 is fitted at the bottom end of the packing sleeve 15. The top end of the packing sleeve 15 is fixedly connected to the packing plate 17. One side of the packing plate 17 is fixedly connected to the valve cover 22 through a second stud 14. The top end of the valve cover 22 is fixedly connected to the bracket 20 through a third stud 19 and a third nut 18. The top end of the bracket 20 is fixed to the electric actuator 21, and the output end of the electric actuator 21 is fixedly connected to the top end of the valve stem 13.

[0027] The gate body 1 and the valve cover 22 are fixedly connected by the first nut 8 and the first stud 9. The contact surfaces of the gate body 1 and the valve cover 22 are both flange structures, and a gasket 10 is fitted between them. Through the combination structure of the spring 3, the gate plate 4, the upper wedge 6 and the lower wedge 5, the user can first combine and connect the upper wedge 6 and the lower wedge 5, and then fix them to the outer gate plate 4. The double gate plate 4 structure can improve the structural strength and the pressure on the fluid. The electric actuator 21 at the top can automatically drive the valve stem 13 structure to rotate under the control of the external structure.

[0028] The valve cover 22 has a threaded groove at its top, and the inner wall of the packing plate 17 has an inner groove 172. An inner ring 171 is fixed inside the inner groove 172. The inner groove 172 has an L-shaped cross-section, and a convex ring 173 is fixed at the bottom of the inner ring 171. The convex ring 173 is fixedly engaged with the inner groove 172. The outer wall of the packing plate 17 has a threaded structure, and the packing plate 17 is threadedly fixed to the valve cover 22. A drain plug 2 is provided in the middle cavity of the gate body 1, and a spring 3 is fixed at the bottom of the gate plate 4. The upper wedge 6 and the lower wedge 5 both have grooves on their sides, and the upper wedge 6 and the lower wedge 5 are fitted together and fixed. A sealing ring is fitted between the outer wall of the lower wedge block 5 and the gate body 1; the outer side of the second stud 14 is fixedly connected to the second nut 16; through the set packing pressure plate 17 structure, this structure can be engaged and fixedly connected to the valve cover 22 through the external thread structure, and the inner groove 172 of the inner side of the packing pressure plate 17 is fixedly engaged by the convex ring 173 structure of the inner ring 171 structure, thereby fixing the upper sealing seat 11, packing 12 and valve stem 13, and the outer side of the packing pressure plate 17 is fixedly connected to the valve cover 22 through the second nut 16 and the second stud 14. Therefore, in use, this device can be fixed by the connection method of thread structure and bolt, which can enhance the effect of fixed connection.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electric double-gate flat gate valve, characterized in that, The valve includes a gate body (1), a gate plate (4) is provided inside the gate body (1), a groove is provided in the middle of the bottom end of the gate plate (4), and an upper wedge (6) and a lower wedge (5) are provided inside the top end of the gate plate (4). The top end of the gate body (1) is fixedly connected to the valve cover (22), and the top end of the upper wedge (6) is fixedly connected to the valve stem (13) through the valve plate (7). A packing sleeve (15) is fixed inside the top end of the valve cover (22), and an upper packing sleeve (15) is fitted at the bottom end of the packing sleeve (15). The top end of the packing sleeve (15) is fixedly connected to the packing plate (17). One side of the packing plate (17) is fixedly connected to the valve cover (22) by the second stud (14). The top end of the valve cover (22) is fixedly connected to the bracket (20) by the third stud (19) and the third nut (18). The top end of the bracket (20) is fixed to the electric actuator (21), and the output end of the electric actuator (21) is fixedly connected to the top end of the valve stem (13).

2. The electric double-gate flat gate valve according to claim 1, characterized in that, The gate body (1) and the valve cover (22) are fixedly connected by the first nut (8) and the first stud (9), and the contact surfaces of the gate body (1) and the valve cover (22) are both flange structures, and a gasket (10) is fitted between them.

3. The electric double-gate flat gate valve according to claim 1, characterized in that, The valve cover (22) has a threaded groove structure at its top end, and the inner wall of the packing plate (17) has an inner groove (172). An inner ring (171) is fixed in the inner groove (172). The cross-section of the inner groove (172) is L-shaped, and a convex ring (173) is fixed at the bottom end of the inner ring (171). The convex ring (173) is fixedly engaged with the inner groove (172). The outer wall of the packing plate (17) has a threaded structure, and the packing plate (17) is threadedly fixed to the valve cover (22).

4. The electric double-gate flat gate valve according to claim 1, characterized in that, A drain plug (2) is provided in the middle cavity of the gate body (1), and a spring (3) is fixed at the bottom of the gate plate (4).

5. The electric double-gate flat gate valve according to claim 4, characterized in that, The upper wedge (6) and the lower wedge (5) are provided with grooves on their sides, and the upper wedge (6) and the lower wedge (5) are fitted together and fixed. A sealing ring is fitted between the outer side wall of the upper wedge (6) and the lower wedge (5) and the gate body (1).

6. The electric double-gate flat gate valve according to claim 1, characterized in that, The outer side of the second stud (14) is fixedly connected to the second nut (16).

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