Dual-drive gate valve with adjustable stroke

Abstract

The utility model discloses a stroke-adjustable dual-drive gate valve, and relates to the technical field of gate valves. The device comprises a valve body; an adjusting device; the outer wall of the limiting block is fixedly connected with the outer wall of the valve body; the outer wall of the access cover plate is in sliding connection with the outer wall of the valve body; the adjusting device comprises a connecting frame, the inner wall of the connecting frame is fixedly connected with a fixing block, the outer wall of the fixing block is fixedly connected with a planetary gear motor, the output end of the planetary gear motor is fixedly connected with an internal thread cylinder, the inner wall of the internal thread cylinder is in threaded connection with a screw rod, and the end, away from the planetary gear motor, of the screw rod is fixedly connected with a connecting block. A baffle plate is fixedly connected to the outer wall of the connecting block, a positioning ring is rotationally connected to the outer wall of the inner threaded cylinder, and by arranging the adjusting device, the moving stroke of the baffle plate can be accurately controlled, so that the planetary gear motor can control the opening degree of the gate valve, and the purpose of effectively controlling the flow can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a double-driven gate valve with adjustable stroke. Background Art

[0002] In industrial production, gate valves are an important control device and are widely used in various fluid delivery systems. However, traditional gate valves often have some problems. On the one hand, their stroke control is not precise enough to meet the needs of fine flow adjustment. On the other hand, during use, materials are prone to leakage, which not only wastes resources but also pollutes the environment. At the same time, traditional gate valves are often troublesome to repair and require a lot of time and manpower.

[0003] The existing gate valve has only a simple switch function and cannot provide quantitative supply. It can only provide a switch for other valves and equipment to temporarily cut off the logistics, which makes it difficult to control the material flow;

[0004] The utility model uses a planetary gear motor to accurately control the movement of the baffle plate by setting an adjustment device, so as to accurately control the opening of the gate valve and effectively control the flow rate. At the same time, a support ring and a guide ring are set to assist in pressing the baffle plate around according to the leakage of the stainless steel gate plate, which not only prevents material leakage, but also can scrape the material on the baffle plate clean during the return journey. In addition, a slidable inspection cover is set to facilitate the inspection of the inside of the valve body, thereby improving the maintenance efficiency of the equipment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model adopts the following technical solution to solve the technical problems: a dual-drive gate valve with adjustable stroke, comprising: a valve body; an adjusting device, the outer wall of the adjusting device is fixedly connected to the outer wall of the valve body; a limit block, the outer wall of the limit block is fixedly connected to the outer wall of the valve body; an inspection cover, the outer wall of the inspection cover is slidably connected to the outer wall of the valve body; the adjusting device comprises a connecting frame, the inner wall of the connecting frame is fixedly connected with a fixing block, the outer wall of the fixing block is fixedly connected to a planetary gear motor, the output end of the planetary gear motor is fixedly connected with an internal threaded barrel, the inner wall of the internal threaded barrel is threadedly connected with a screw, the end of the screw away from the planetary gear motor is fixedly connected with a connecting block, the outer wall of the connecting block is fixedly connected with a baffle, the outer wall of the internal threaded barrel is rotatably connected with a positioning ring, and the adjusting device is provided to accurately control the moving stroke of the baffle, so that the planetary gear motor can control the opening of the gate valve and effectively control the flow rate.

[0006] Preferably, the valve body includes a fixed frame. The inner wall of the fixed frame is slidably connected to the outer wall of the baffle through an adjustment groove, and the adjustment groove is formed in the wall of the fixed frame. A support ring is fixedly connected to the inner side wall of the fixed frame. A guiding ring is arranged above the support ring. The outer wall of the top of the fixed frame is slidably connected to the outer wall of the maintenance cover plate through a sliding groove, and the sliding groove is formed in the wall of the fixed frame.

[0007] Preferably, the outer wall of the fixed frame is fixedly connected to the outer wall of the connecting frame, the outer wall of the fixed frame is fixedly connected to the outer wall of the positioning ring, the outer wall of the guiding ring is fixedly connected to the inner side wall of the fixed frame, the outer wall of the bottom of the guiding ring is slidably connected to the outer wall of the top of the baffle, and the outer wall of the top of the support ring is slidably connected to the outer wall of the bottom of the baffle. The support ring and the guiding ring are provided to assist in pressing the periphery of the baffle according to the leakage situation of the stainless steel plug plate, which not only prevents material leakage but also scrapes the material on the baffle clean during the return journey.

[0008] Preferably, the limiting block includes a fixing plate. The inner wall of the fixing plate is slidably connected to the outer wall of the baffle through a limiting groove, and the limiting groove is formed in the wall of the fixed frame. The outer wall of the fixing plate is fixedly connected to a transition frame. A support groove is formed in the outer wall of the transition frame. The outer wall of the transition frame is fixedly connected to the outer wall of the fixed frame close to the adjustment groove. The outer wall of the transition frame is slidably connected to the outer wall of the maintenance cover plate through the support groove. The maintenance cover plate is provided to slide out along the sliding groove at the top of the fixed frame, which is convenient for overhauling the inside of the valve body.

[0009] The beneficial effects of the present utility model are as follows:

[0010] 1. By setting an adjustment device, the present utility model can accurately control the moving stroke of the baffle, enabling the planetary gear motor to control the opening degree of the plug valve and effectively control the flow rate.

[0011] 2. By setting a support ring and a guiding ring, according to the leakage situation of the stainless steel plug plate, the present utility model assists in pressing the periphery of the baffle, which not only prevents material leakage but also scrapes the material on the baffle clean during the return journey.

[0012] 3. By setting that the maintenance cover plate can slide out along the sliding groove at the top of the fixed frame, the present utility model is convenient for overhauling the inside of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view of the present utility model;

[0014] Figure 2 is the exploded view of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the valve body of the present utility model;

[0016] Figure 4 is a schematic structural view of the adjusting device of the present utility model;

[0017] Figure 5 is a schematic structural view of the limit block of the present utility model.

[0018] In the figure: 1, valve body; 2, adjusting device; 3, limit block; 4, maintenance cover plate; 11, fixed frame; 12, adjusting groove; 13, support ring; 14, guiding ring; 15, sliding groove; 21, connecting frame; 22, fixed block; 23, planetary gear motor; 24, internal thread cylinder; 25, positioning ring; 26, screw rod; 27, connecting block; 28, shielding plate; 31, fixing plate; 32, limiting groove; 33, transition frame; 34, support groove. Detailed implementation manners

[0019] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0020] Embodiment: Please refer to Figure 1 - Figure 5, the present utility model provides a technical solution: a double - drive flap valve with adjustable stroke, comprising: a valve body 1; an adjusting device 2, the outer wall of the adjusting device 2 is fixedly connected to the outer wall of the valve body 1; a limit block 3, the outer wall of the limit block 3 is fixedly connected to the outer wall of the valve body 1; a maintenance cover plate 4, the outer wall of the maintenance cover plate 4 is slidably connected to the outer wall of the valve body 1; the adjusting device 2 includes a connecting frame 21, a fixed block 22 is fixedly connected to the inner wall of the connecting frame 21, a planetary gear motor 23 is fixedly connected to the outer wall of the fixed block 22, an inner threaded cylinder 24 is fixedly connected to the output end of the planetary gear motor 23, a screw rod 26 is threadedly connected to the inner wall of the inner threaded cylinder 24, a connecting block 27 is fixedly connected to the end of the screw rod 26 away from the planetary gear motor 23, a shielding plate 28 is fixedly connected to the outer wall of the connecting block 27, a positioning ring 25 is rotatably connected to the outer wall of the inner threaded cylinder 24. When the two planetary gear motors 23 in the adjusting device 2 are started synchronously, the planetary gear motor 23 can drive the inner threaded cylinder 24 fixed on the outer ring to stably rotate under the limitation of the positioning ring 25. Since the inner threaded cylinder 24 is threadedly connected to the screw rod 26, the rotation of the inner threaded cylinder 24 at this time will cause the screw rod 26 to move axially. Through the symmetrical arrangement of the screw rods 26 and the synchronous rotation of the planetary gear motors 23, the screw rod 26 moves axially and pushes the connecting block 27 to move, and the moving connecting block 27 will drive the shielding plate 28 to move. The shielding plate 28 slides in the adjusting groove 12 of the valve body 1, thereby controlling the opening and closing stroke of the flap valve through opening and closing, and further controlling the flow rate of the material.

[0021] The valve body 1 includes a fixed frame 11, the inner wall of the fixed frame 11 is slidably connected to the outer wall of the shielding plate 28 through an adjusting groove 12, and the adjusting groove 12 is opened in the wall of the fixed frame 11. A support ring 13 is fixedly connected to the inner side wall of the fixed frame 11. A guiding ring 14 is arranged above the support ring 13. The outer wall of the top of the fixed frame 11 is slidably connected to the outer wall of the maintenance cover plate 4 through a sliding groove 15, and the sliding groove 15 is opened in the wall of the fixed frame 11.

[0022] The outer wall of the fixed frame 11 is fixedly connected to the outer wall of the connecting frame 21, the outer wall of the fixed frame 11 is fixedly connected to the outer wall of the positioning ring 25, the outer wall of the guiding ring 14 is fixedly connected to the inner side wall of the fixed frame 11, the outer wall of the bottom of the guiding ring 14 is slidably connected to the outer wall of the top of the shielding plate 28, the outer wall of the top of the support ring 13 is slidably connected to the outer wall of the bottom of the shielding plate 28. The support ring 13 and the guiding ring 14 are respectively slidably connected to the bottom and top of the shielding plate 28, thereby playing a role in guiding and supporting the movement of the shielding plate 28, ensuring the smooth movement of the shielding plate 28. The support ring 13 and the guiding ring 14 in the valve body 1 ensure that the shielding plate 28 remains stable during the movement process, thereby reducing the jamming and deviation of material transportation.

[0023] The limit block 3 includes a fixing plate 31. The inner wall of the fixing plate 31 is slidably connected to the outer wall of the shielding plate 28 through a limit groove 32, and the limit groove 32 is opened in the wall of the fixed frame 11. The outer wall of the fixing plate 31 is fixedly connected with a transition frame 33. A support groove 34 is opened on the outer wall of the transition frame 33. The outer wall of the transition frame 33 is fixedly connected to the outer wall of the fixed frame 11 near the adjustment groove 12. The outer wall of the transition frame 33 is slidably connected to the outer wall of the maintenance cover plate 4 through the support groove 34. The fixing plate 31 in the limit block 3 limits the movement of the shielding plate 28 through the limit groove 32 to prevent the shielding plate 28 from moving beyond the limit. The support groove 34 on the transition frame 33 is slidably connected to the maintenance cover plate 4 to provide guidance and support for the maintenance cover plate 4. When maintenance is required, the maintenance cover plate 4 can slide out along the chute 15 at the top of the fixed frame 11, facilitating the maintenance of the inside of the valve body 1. The maintenance cover plate 4 is installed on the valve body 1, and the maintenance cover plate 4 can be opened within a specified time to remove the debris on the maintenance cover plate 4, reducing the overall weight on the valve body 1.

[0024] Working principle:

[0025] During use, if the stroke of the shielding plate 28 needs to be adjusted, first, the two planetary gear motors 23 in the adjustment device 2 are started synchronously. Since the characteristic of the planetary gear motor 23 is to drive the outer ring to rotate, with the stable fixation of the connecting frame 21 and the fixed block 22, the planetary gear motor 23 can drive the internal thread cylinder 24 fixed on the outer ring to rotate stably under the limitation of the positioning ring 25. Since the internal thread cylinder 24 is threadedly connected to the screw rod 26, the rotation of the internal thread cylinder 24 at this time will cause the screw rod 26 to move axially. Through the symmetric arrangement of the screw rods 26 and the synchronous rotation of the planetary gear motors 23, the screw rods 26 move axially and push the connecting block 27 to move, and the moving connecting block 27 will drive the shielding plate 28 to move. The shielding plate 28 slides in the adjustment groove 12 of the valve body 1, thereby controlling the opening and closing stroke of the plug valve through opening and closing, and further controlling the flow rate of the material. The adjustment device 2 uses planetary gear motors 23, which have the advantages of high precision and large torque, and can accurately control the moving stroke of the shielding plate 28. This enables the planetary gear motors 23 to control the opening degree of the plug valve and effectively control the flow rate.

[0026] The fixed frame 11 in the valve body 1 provides support and an installation foundation for the entire structure. The support ring 13 and the guiding ring 14 are respectively slidably connected to the bottom and the top of the shielding plate 28, thereby playing a role in guiding and supporting the movement of the shielding plate 28 to ensure the smooth movement of the shielding plate 28. The support ring 13 and the guiding ring 14 in the valve body 1 ensure that the shielding plate 28 remains stable during movement, thereby reducing the jamming and deviation of material transportation. After long-term operation, the support ring 13 and the guiding ring 14 assist in pressing the periphery of the shielding plate 28 according to the leakage situation of the stainless steel plug, not only preventing material leakage but also scraping the material on the shielding plate 28 clean during the return journey.

[0027] The fixed plate 31 in the limit block 3 limits the movement of the shielding plate 28 through the limit groove 32 to prevent the shielding plate 28 from moving beyond the limit. The support groove 34 on the transition frame 33 is slidably connected to the maintenance cover plate 4 to provide guidance and support for the maintenance cover plate 4. When maintenance is required, the maintenance cover plate 4 can slide out along the chute 15 at the top of the fixed frame 11, facilitating the maintenance of the interior of the valve body 1. The maintenance cover plate 4 is installed on the valve body 1, and the maintenance cover plate 4 can be opened within a specified time to remove the debris on the maintenance cover plate 4, reducing the overall weight on the valve body 1. The limit groove 32 of the limit block 3 and the support groove 34 of the transition frame 33 improve the overall stability of the device, enabling the entire device to achieve adjustable control of the stroke of the knife gate valve through the coordinated operation of each component.

[0028] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A double-drive gate valve with adjustable stroke, characterized in that: include: Valve body (1); An adjusting device (2), wherein an outer wall of the adjusting device (2) is fixedly connected to an outer wall of the valve body (1); A limit block (3), wherein an outer wall of the limit block (3) is fixedly connected to an outer wall of the valve body (1); An inspection cover plate (4), the outer wall of the inspection cover plate (4) being slidably connected to the outer wall of the valve body (1); The adjusting device (2) comprises a connecting frame (21), the inner wall of the connecting frame (21) is fixedly connected to a fixing block (22), the outer wall of the fixing block (22) is fixedly connected to a planetary gear motor (23), the output end of the planetary gear motor (23) is fixedly connected to an internal threaded barrel (24), the inner wall of the internal threaded barrel (24) is threadedly connected to a screw rod (26), one end of the screw rod (26) away from the planetary gear motor (23) is fixedly connected to a connecting block (27), the outer wall of the connecting block (27) is fixedly connected to a shielding plate (28), and the outer wall of the internal threaded barrel (24) is rotatably connected to a positioning ring (25).

2. The adjustable stroke dual-drive gate valve according to claim 1, characterized in that: The valve body (1) comprises a fixed frame (11), the inner wall of the fixed frame (11) being slidably connected to the outer wall of the baffle plate (28) via an adjustment groove (12), and the adjustment groove (12) is provided in the wall of the fixed frame (11), the side wall inside the fixed frame (11) is fixedly connected to a support ring (13), and a guide ring (14) is provided above the support ring (13), and the outer wall of the top of the fixed frame (11) is slidably connected to the outer wall of the inspection cover plate (4) via a slide groove (15), and the slide groove (15) is provided in the wall of the fixed frame (11).

3. The adjustable stroke dual-drive gate valve according to claim 2, characterized in that: The outer wall of the fixing frame (11) is fixedly connected to the outer wall of the connecting frame (21), and the outer wall of the fixing frame (11) is fixedly connected to the outer wall of the positioning ring (25).

4. The adjustable stroke dual-drive gate valve according to claim 2, characterized in that: The outer wall of the guide ring (14) is fixedly connected to the inner side wall of the fixed frame (11), the outer wall of the bottom of the guide ring (14) is slidably connected to the outer wall of the top of the baffle plate (28), and the outer wall of the top of the support ring (13) is slidably connected to the outer wall of the bottom of the baffle plate (28).

5. The adjustable stroke dual-drive gate valve according to claim 1, characterized in that: The limit block (3) comprises a fixed plate (31), the inner wall of the fixed plate (31) being slidably connected to the outer wall of the shielding plate (28) via a limit groove (32), and the limit groove (32) being formed in the wall of the fixed frame (11), the outer wall of the fixed plate (31) being fixedly connected to a transition frame (33), and the outer wall of the transition frame (33) being provided with a support groove (34).

6. The adjustable stroke dual-drive gate valve according to claim 5, characterized in that: The outer wall of the transition frame (33) is fixedly connected to the outer wall of the fixed frame (11) on a side close to the adjustment groove (12), and the outer wall of the transition frame (33) is slidably connected to the outer wall of the inspection cover plate (4) via the support groove (34).

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