Stable and durable forged steel gate valve

Abstract

The utility model discloses a stable and durable forged steel gate valve, and relates to the technical field of forged steel gate valves. The gate valve comprises a gate valve body and a cover plate, the cover plate is arranged on the gate valve body in a clamped mode, fixing assemblies which are symmetrically distributed are arranged on the cover plate, and a waste discharging assembly is arranged at the bottom of the gate valve body. A pressing plate rotates along a first rotating shaft, one end of the pressing plate drives a fixing rod to move in the direction away from a cover plate through a sliding groove, the fixing rod drives a disc to move, the disc drives an inserting rod to move in an inserting groove, and the cover plate is taken down from a gate valve body, so that the situation that bolts are inconvenient to disassemble can be avoided, and the purpose of quick disassembly is achieved. A double-end lead screw drives a moving block to move reversely, the moving block drives a top plate to move downwards through a supporting rod, meanwhile, a semicircular plate rotates downwards along a second rotating shaft through gravity, impurities accumulated at the bottom in the gate valve body are discharged from a waste discharging pipe, the impurities can be conveniently discharged, and therefore the purpose of conveniently discharging waste is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of forged steel gate valves, in particular to a stable and durable forged steel gate valve. Background Art

[0002] Forged steel gate valve refers to a valve whose closing member (gate) moves in the vertical direction along the center line of the passage. Forged steel gate valve is mainly used for cutting off in the pipeline. Forged steel gate valve is a widely used valve.

[0003] During the use of forged steel gate valves, the sealing ring between the valve stem and the cover plate often needs to be replaced to maintain the sealing of the forged steel gate valve. The disassembly of the existing forged steel gate valve cover plate mostly requires the removal of multiple bolts, but this disassembly efficiency is low and is not conducive to the rapid replacement of the sealing ring. Utility Model Content

[0004] In order to solve the problem that the disassembly efficiency is low and it is not conducive to the rapid replacement of the sealing ring; the purpose of the utility model is to provide a stable and durable forged steel gate valve.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a stable and durable forged steel gate valve, comprising a gate valve body and a cover plate, the cover plate being clamped on the gate valve body, the cover plate being provided with symmetrically distributed fixing components, and the bottom of the gate valve body being provided with a waste discharge component; the fixing component comprises an insert rod and a pressure plate, one end of the insert rod movably passes through the cover plate, a symmetrically distributed slot is provided on the outer side of the gate valve body, one end of the insert rod is movably inserted into the slot, one end of the insert rod is fixed with a disc, a fixing rod is fixed on the side of the disc away from the insert rod, a slide groove is provided on the outer side of the pressure plate, one end of the fixing rod is movably clamped in the slide groove, and the pressure plate rotates along the first rotating shaft, and one end of the pressure plate is driven by the slide groove The fixing rod moves in the direction away from the cover plate, the fixing rod drives the disc to move, the disc drives the insertion rod to move out of the slot, and the cover plate is removed from the gate valve body. This can avoid the situation where the disassembly bolts are inconvenient to disassemble. A symmetrically distributed mounting bracket is fixed on the outer side of the cover plate, and a first rotating shaft is rotatably installed in the mounting bracket. The pressure plate fixing sleeve is arranged on the first rotating shaft, and the pressure plate can be conveniently rotated along the first rotating shaft through the mounting bracket and the first rotating shaft. A return spring is provided on the outer movable sleeve of the insertion rod, and the two ends of the return spring are respectively fixedly connected to one side of the disc and the outer side of the cover plate. The insertion rod can be driven to reset by the elastic force of the return spring, and a limit plate is fixed on the end of the fixing rod away from the disc, which can prevent the pressure plate from separating from the fixing rod.

[0006] Preferably, the waste discharge assembly includes a waste discharge pipe, the top end of the waste discharge pipe is fixedly passed through the bottom of the gate valve body, the interior of the waste discharge pipe is rotatably installed with a symmetrically distributed second rotating shaft, the outer side of the second rotating shaft is fixedly sleeved with a semicircular plate, the outer side of the semicircular plate is fitted with the inner wall of the waste discharge pipe, and a double-headed screw is rotatably installed on the outer side of the waste discharge pipe, and the outer side thread sleeve of the double-headed screw is provided with a symmetrically distributed moving block, a support rod is rotatably installed on the moving block, and a top plate is rotatably installed on the top end of the support rod, the top plate is fitted with the upper surface of the semicircular plate, and a sealing gasket is fixedly provided on the upper surface of the semicircular plate, and the opposite sides of the two sealing gaskets are in contact with each other. The cam is engaged, and the movable block is driven to move in the opposite direction by the double-headed screw rod, and the movable block drives the top plate to move downward through the support rod, and at the same time the semicircular plate rotates downward along the second rotating shaft by gravity, so that the impurities accumulated at the bottom of the gate valve body are discharged from the waste pipe, which can facilitate the discharge of impurities. A guide rod is fixedly provided on the inner wall of the waste pipe, and one end of the guide rod movably penetrates the movable block. The guide rod can improve the movement stability of the movable block, and a crank is movably penetrated on the outer side of the waste pipe, and one end of the crank is fixedly connected to one end of the double-headed screw rod, and the double-headed screw rod can be conveniently rotated by the crank handle. The two support rods are staggered, which can improve the stability of the support rod.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] 1. The pressure plate rotates along the first rotating shaft, and one end of the pressure plate drives the fixing rod to move away from the cover plate through the sliding groove. The fixing rod drives the disc to move, and the disc drives the insert rod to move out of the slot and remove the cover plate from the gate valve body. This can avoid the inconvenience of removing the bolts, thereby achieving the purpose of quick disassembly;

[0009] 2. The moving block is driven to move in the opposite direction by the double-headed screw, and the moving block drives the top plate to move downward through the support rod. At the same time, the semicircular plate rotates downward along the second rotating shaft due to gravity, so that the impurities accumulated at the bottom of the gate valve body are discharged from the waste pipe, which makes it easy to discharge the impurities and achieve the purpose of convenient waste discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 This is a schematic structural diagram of the utility model.

[0012] Figure 2 for Figure 1 A magnified view of the structure.

[0013] Figure 3 This is a schematic cross-sectional view of the waste discharge assembly structure of the present invention.

[0014] Figure 4 This is a schematic diagram of the main structure of the gate valve of this utility model.

[0015] In the figure: 1. Gate valve body; 2. Fixing assembly; 21. Insert rod; 22. Disc; 23. Pressure plate; 24. Slot; 25. Limit plate; 26. Fixing rod; 27. Mounting frame; 28. First rotating shaft; 29. ​​Slide groove; 210. Return spring; 3. Cover plate; 4. Waste discharge assembly; 41. Waste discharge pipe; 42. Second rotating shaft; 43. Semicircular plate; 44. Double-headed screw; 45. Moving block; 46. Support rod; 47. Top plate; 48. Guide rod; 49. Crank handle; 410. Sealing gasket. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example: Figure 1-4As shown, the utility model provides a stable and durable forged steel gate valve, including a gate valve body 1 and a cover plate 3, the cover plate 3 is clamped on the gate valve body 1, a symmetrically distributed fixing assembly 2 is provided on the cover plate 3, and a waste discharge assembly 4 is provided at the bottom of the gate valve body 1; the fixing assembly 2 includes an insert rod 21 and a pressure plate 23, one end of the insert rod 21 movably passes through the cover plate 3, a symmetrically distributed slot 24 is provided on the outside of the gate valve body 1, one end of the insert rod 21 is movably inserted into the slot 24, one end of the insert rod 21 is fixed with a disc 22, a fixing rod 26 is fixed on the side of the disc 22 away from the insert rod 21, a slide groove 29 is provided on the outside of the pressure plate 23, one end of the fixing rod 26 is movably clamped in the slide groove 29, and the pressure plate 23 rotates along the first rotating shaft 28, and one end of the pressure plate 23 drives the fixing rod 26 to move away from the cover plate 3 through the slide groove 29, The fixed rod 26 drives the disc 22 to move, and the disc 22 drives the insertion rod 21 to move out of the slot 24 and remove the cover plate 3 from the gate valve body 1. This can avoid the situation where it is inconvenient to disassemble the bolts. A symmetrically distributed mounting bracket 27 is fixed to the outside of the cover plate 3. A first rotating shaft 28 is rotatably installed in the mounting bracket 27. The pressure plate 23 is fixedly sleeved on the first rotating shaft 28. The mounting bracket 27 and the first rotating shaft 28 can facilitate the rotation of the pressure plate 23 along the first rotating shaft 28. A return spring 210 is provided on the outer movable sleeve of the insertion rod 21. The two ends of the return spring 210 are respectively fixedly connected to one side of the disc 22 and the outer side of the cover plate 3. The elastic force of the return spring 210 can drive the insertion rod 21 to reset. A limit plate 25 is fixed to the end of the fixing rod 26 away from the disc 22. The limit plate 25 can prevent the pressure plate 23 from separating from the fixing rod 26.

[0018] The waste discharge assembly 4 includes a waste discharge pipe 41, the top of the waste discharge pipe 41 is fixedly passed through the bottom of the gate valve body 1, and the interior of the waste discharge pipe 41 is rotatably installed with a symmetrically distributed second rotating shaft 42, and the outer side of the second rotating shaft 42 is fixedly sleeved with a semicircular plate 43. The outer side of the semicircular plate 43 fits with the inner wall of the waste discharge pipe 41, and the outer side of the waste discharge pipe 41 is rotatably installed with a double-headed screw rod 44. The outer side thread sleeve of the double-headed screw rod 44 is provided with a symmetrically distributed moving block 45. A support rod 46 is rotatably installed on the moving block 45, and a top plate 47 is rotatably installed on the top of the support rod 46. The top plate 47 fits with the upper surface of the semicircular plate 43, and a sealing gasket 410 is fixed on the upper surface of the semicircular plate 43. The opposite sides of the two sealing gaskets 410 fit each other, and the sealing gasket 410 can improve the gap between the two semicircular plates 43. The sealing between the gate valve body 1 and the drain pipe 41 is improved, and the moving block 45 is driven to move in the opposite direction by the double-headed screw 44. The moving block 45 drives the top plate 47 to move downward through the support rod 46. At the same time, the semicircular plate 43 rotates downward along the second rotating shaft 42 by gravity, so that the impurities accumulated at the bottom of the gate valve body 1 are discharged from the waste pipe 41. This makes it convenient to discharge the impurities. A guide rod 48 is fixedly provided on the inner wall of the waste pipe 41. One end of the guide rod 48 movably penetrates the moving block 45. The movement stability of the moving block 45 can be improved by the guide rod 48. A crank 49 is movably penetrated on the outside of the waste pipe 41. One end of the crank 49 is fixedly connected to one end of the double-headed screw 44. The double-headed screw 44 can be easily rotated by the crank 49. The two support rods 46 are staggered, which can improve the stability of the support rod 46.

[0019] Working principle: When the sealing ring needs to be replaced, first remove the gate valve body 1, then press one end of the pressure plate 23 in the opposite direction to rotate the pressure plate 23 along the first rotating shaft 28, and one end of the pressure plate 23 drives the fixing rod 26 to move away from the cover plate 3 through the slide groove 29, and the fixing rod 26 drives the disc 22 to move, and the disc 22 drives the insertion rod 21 to move out of the slot 24. At the same time, the disc 22 stretches the reset spring 210, so that the reset spring 210 generates elastic force. Then, the cover plate 3 is removed from the gate valve body 1. This can avoid the inconvenience of removing the bolts, thereby achieving the purpose of quick disassembly, and then the sealing ring can be replaced and the cover plate 3 can be reset;

[0020] When waste needs to be discharged, the crank 49 is turned, and the crank 49 drives the double-headed screw 44 to rotate, and the double-headed screw 44 drives the moving block 45 to move in the opposite direction, and the guide rod 48 keeps the moving block 45 stable. The moving block 45 drives the top plate 47 to move downward through the support rod 46. At the same time, the semicircular plate 43 rotates downward along the second rotating shaft 42 by gravity, so that the impurities accumulated at the bottom of the gate valve body 1 are discharged from the waste discharge pipe 41, so that the impurities can be discharged conveniently, thereby achieving the purpose of convenient waste discharge.

[0021] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A stable and durable forged steel gate valve, comprising a gate valve body (1) and a cover plate (3), characterized in that: The cover plate (3) is clamped on the gate valve body (1), and a symmetrically distributed fixing assembly (2) is provided on the cover plate (3), and a waste discharge assembly (4) is provided at the bottom of the gate valve body (1); the fixing assembly (2) includes an insert rod (21) and a pressure plate (23), one end of the insert rod (21) movably passes through the cover plate (3), a symmetrically distributed slot (24) is provided on the outer side of the gate valve body (1), one end of the insert rod (21) is movably inserted into the slot (24), one end of the insert rod (21) is fixed with a disc (22), and a fixing rod (26) is fixed on the side of the disc (22) away from the insert rod (21), a slide groove (29) is provided on the outer side of the pressure plate (23), and one end of the fixing rod (26) is movably clamped in the slide groove (29).

2. A stable and durable forged steel gate valve as claimed in claim 1, characterized in that: The waste discharge assembly (4) includes a waste discharge pipe (41), the top end of the waste discharge pipe (41) is fixedly passed through the bottom of the gate valve body (1), a symmetrically distributed second rotating shaft (42) is rotatably installed inside the waste discharge pipe (41), the outer fixed sleeve of the second rotating shaft (42) is provided with a semicircular plate (43), the outer side of the semicircular plate (43) is in contact with the inner wall of the waste discharge pipe (41), a double-headed screw rod (44) is rotatably installed on the outer side of the waste discharge pipe (41), the outer thread sleeve of the double-headed screw rod (44) is provided with symmetrically distributed moving blocks (45), a support rod (46) is rotatably installed on the moving block (45), the top end of the support rod (46) is rotatably installed with a top plate (47), the top plate (47) is in contact with the upper surface of the semicircular plate (43), a sealing gasket (410) is fixedly provided on the upper surface of the semicircular plate (43), and the opposite sides of the two sealing gaskets (410) are in contact with each other.

3. A stable and durable forged steel gate valve as claimed in claim 1, characterized in that: A symmetrically distributed mounting frame (27) is fixedly provided on the outer side of the cover plate (3), a first rotating shaft (28) is rotatably mounted in the mounting frame (27), and the pressing plate (23) is fixedly sleeved on the first rotating shaft (28).

4. A stable and durable forged steel gate valve as claimed in claim 2, characterized in that: A guide rod (48) is fixedly provided on the inner wall of the waste discharge pipe (41), and one end of the guide rod (48) movably passes through the moving block (45).

5. A stable and durable forged steel gate valve as claimed in claim 1, characterized in that: A return spring (210) is provided on the outer movable sleeve of the insertion rod (21), and two ends of the return spring (210) are fixedly connected to one side of the disc (22) and the outer side of the cover plate (3), respectively.

6. A stable and durable forged steel gate valve as claimed in claim 2, characterized in that: A crank (49) is movably passed through the outer side of the waste discharge pipe (41), and one end of the crank (49) is fixedly connected to one end of the double-headed screw (44).

7. A stable and durable forged steel gate valve as claimed in claim 1, characterized in that: A limiting plate (25) is fixedly provided on one end of the fixing rod (26) away from the disc (22).

8. A stable and durable forged steel gate valve as claimed in claim 2, characterized in that: The two support rods (46) are staggered.

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