Forged steel self-resetting stop valve

Abstract

The utility model provides a forged steel self-resetting stop valve, which relates to the technical field of stop valves and comprises a valve body, a valve cover is arranged on the valve body, a bolt is in threaded connection with the valve cover, a valve rod is arranged in the valve body, a handle is fixed on one side, far away from the valve cover, of the valve rod, and a valve plate component is arranged in the valve body. Waste water generated by steel forging enters the valve body from the water inlet of the stop valve, the valve plate is jacked to the upper portion in the valve body through the water pressure of the waste water, the clamping block is clamped in the supporting frame, and therefore the valve plate can be fixed to the upper portion in the valve body; when the stop valve is in use, water at the water outlet ejects the ejection column in the hollow pipe upwards, the ejection column pushes the second hook, and the second hook rotates through cooperation of the rotating shaft and the second hook, so that the clamping block falls off from the supporting frame, the valve plate blocks the interior of the valve body, and the automatic reset effect of the stop valve is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a forged steel self-resetting stop valve. Background Art

[0002] A forged steel self-resetting stop valve can automatically close when subjected to external force or water flow impact. Even if the valve is opened, it can automatically reset and close to ensure the safe operation of the pipeline system. The sealing structure design of the valve is related to the service life and sealing performance of the valve. High-quality sealing materials and structural design are used to ensure that the valve has good sealing performance when closed.

[0003] The existing patent (publication number: CN204153159U) proposes a stop valve, the bottom of the cavity is provided with wedge-shaped teeth evenly distributed along the circumference, the inclined surface of the wedge-shaped teeth is inclined in the clockwise direction of the circle formed by them, the wedge-shaped teeth are abutted against a pressure rod in the vertical direction, the pressure rod is movably connected to the rotary head, the rotary head is provided with a cavity hole, and a through hole is provided on a side of the rotary head opposite to the wedge-shaped teeth, the through hole is connected to the cavity hole, and the other end of the pressure rod opposite to the wedge-shaped teeth passes through the through hole into the cavity hole, which can solve the problem of the overall service life of the stop valve being shortened due to the deformation of the valve seat and the valve disc caused by the application of excessive closing force when the water flow is closed.

[0004] However, existing stop valves are usually unable to reset automatically. The failure of the stop valve to close automatically may cause the pipeline system to lose control, resulting in fluid leakage or overflow, increasing the risk of accidents and posing a threat to the safety of personnel and equipment. The fluid in the pipeline cannot be effectively controlled, which may cause pressure loss and affect the normal operation of the pipeline system. Fluid leakage may cause corrosion and damage to the pipeline system and ancillary equipment, shorten the service life of the equipment and increase maintenance costs. Therefore, the utility model proposes a forged steel self-resetting stop valve to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a forged steel self-resetting stop valve.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a forged steel self-reset stop valve, comprising a valve body, a valve cover is arranged on the valve body, a bolt is threadedly connected to the valve cover, a valve stem is arranged in the valve body, a handle is fixed on the side of the valve stem away from the valve cover, a valve plate assembly is arranged inside the valve body, a clamping assembly is arranged in the valve body, and a reset assembly is arranged in the valve body on the side close to the clamping assembly;

[0007] The clamping assembly comprises a support frame, a first hook is arranged on the support frame, a rotating shaft is rotatably connected to a side of the support frame away from the first hook, a second hook is fixed on the rotating shaft, and a clamping block is clamped on the first hook and the second hook;

[0008] The reset assembly comprises a hollow tube, a first sliding block is slidably connected in the hollow tube, a second sliding block is slidably connected in the hollow tube on one side close to the top of the second sliding block, and a top column is fixed on the top of the second sliding block.

[0009] As a preferred embodiment of a forged steel self-resetting stop valve, a flange is fixed on the valve body, and a through hole is opened on the flange.

[0010] The beneficial effect of adopting the above further solution is that: by providing a flange, and opening a through hole on the flange, the valve body can be connected to the pipeline through the through hole.

[0011] As a preferred embodiment of a forged steel self-resetting stop valve, the valve plate assembly includes a valve plate, a gasket is fixed to the bottom of the valve plate, and a damping rod is fixed to the bottom of the valve plate.

[0012] The beneficial effect of adopting the above-mentioned further scheme is: through the cooperation of the set valve plate and the damping rod, the valve plate can block the water outlet hole in the valve body, thereby achieving the effect of cutting off the water outlet; through the set gasket, a better sealing effect can be achieved between the valve plate and the water outlet, thereby preventing water leakage when the stop valve is closed.

[0013] As a preferred embodiment of a forged steel self-resetting stop valve, the other end of the damping rod is fixed to the inner bottom of the valve body, and the valve plate is fixed to the valve stem.

[0014] The beneficial effect of adopting the above further solution is that since one end of the damping rod is fixed to the inner bottom of the valve body and the other end is fixed to the bottom of the valve plate, the damping rod has a buffering effect on the valve plate.

[0015] As a preferred implementation of a forged steel self-resetting stop valve, the support frame is fixed to the inner top of the valve body, and the bottom of the clamping block is fixed to the valve plate.

[0016] The beneficial effect of adopting the above further solution is that since the support frame is fixed to the inner top of the valve body and the clamping block is fixed to the valve plate, when the clamping block is engaged with the support frame, the valve plate can be fixed.

[0017] As a preferred embodiment of a forged steel self-resetting stop valve, a fixing block is fixed on the hollow tube, a hole is opened at the bottom of the hollow tube, the side of the fixing block away from the hollow tube is fixed inside the valve body, and the top column is slidably connected in the hollow tube.

[0018] The beneficial effect of adopting the above further scheme is: through the setting of the fixed block, the fixed block can fix the reset assembly in the valve body, through the setting of the hole and the first sliding block, there is air between the hole and the first sliding block, the water pressure pushes the hole upward through the hole, and through the air pressure, the first sliding block and the top column are pushed upward from the hollow tube, and the top column pushes the second hook.

[0019] Compared with the prior art, the advantages and positive effects of the utility model are:

[0020] 1. When the operator uses the stop valve, the wastewater generated by the forged steel enters the valve body from the water inlet of the stop valve. Through the water pressure of the wastewater, the wastewater pushes the valve plate to the top of the valve body, so that the clamping block is clamped in the support frame, so that the valve plate can be fixed on the top of the valve body. When the valve plate needs to be closed, the water pressure at the water outlet is greater than the water pressure at the water inlet. The water at the water outlet pushes the top column in the hollow tube upward, and the top column pushes the second hook. Through the cooperation of the rotating shaft and the second hook, the second hook rotates, so that the clamping block falls off from the support frame, and the valve plate blocks the inside of the valve body, thereby achieving the effect of automatic resetting of the stop valve.

[0021] 2. The fixed block is set so that the reset assembly can be fixed in the valve body. The hole and the first sliding block are set, and air is contained between the hole and the first sliding block. The water pressure pushes the hole upward through the hole. The first sliding block and the top column are pushed upward from the hollow tube through the air pressure. The top column pushes the second hook, thereby solving the technical problem that the reset assembly has a complex structure and is not conducive to later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a forged steel self-resetting stop valve of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of a forged steel self-resetting stop valve of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of a clamping assembly of a forged steel self-resetting stop valve of the utility model;

[0025] Figure 4 The utility model is a schematic diagram of the reset component structure of a forged steel self-reset stop valve.

[0026] Reference numerals

[0027] 1. Valve body; 2. Valve cover; 3. Bolt; 4. Valve stem; 5. Handle; 6. Flange; 7. Valve plate assembly; 71. Valve plate; 72. Gasket; 73. Damping rod; 8. Card assembly; 81. Support frame; 82. First hook; 83. Rotating shaft; 84. Second hook; 85. Card block; 9. Reset assembly; 91. Hollow tube; 92. Fixed block; 93. Hole; 94. First sliding block; 95. Second sliding block; 96. Top column. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] like Figure 1-4 As shown, the utility model provides a technical solution for a forged steel self-reset stop valve: a forged steel self-reset stop valve, comprising a valve body 1, a valve cover 2 is arranged on the valve body 1, a bolt 3 is threadedly connected to the valve cover 2, a valve stem 4 is arranged in the valve body 1, a handle 5 is fixed on the side of the valve stem 4 away from the valve cover 2, a valve plate assembly 7 is arranged inside the valve body 1, a clamping assembly 8 is arranged in the valve body 1, and a reset assembly 9 is arranged on the side of the valve body 1 close to the clamping assembly 8;

[0031] The clamping assembly 8 includes a support frame 81, on which a first hook 82 is disposed, a rotating shaft 83 is rotatably connected to a side of the support frame 81 away from the first hook 82, a second hook 84 is fixed to the rotating shaft 83, and a clamping block 85 is clamped between the first hook 82 and the second hook 84;

[0032] The reset assembly 9 includes a hollow tube 91, in which a first sliding block 94 is slidably connected, and a second sliding block 95 is slidably connected on one side of the hollow tube 91 near the top of the second sliding block 95, and a top column 96 is fixed on the top of the second sliding block 95. When the stop valve is in use, wastewater generated by the forged steel enters the valve body 1 from the water inlet of the stop valve. Through the water pressure of the wastewater, the wastewater pushes the valve plate 71 to the top of the valve body 1, so that the clamping block 85 is clamped in the support frame 81, so that the valve plate 71 can be fixed on the top of the valve body 1. When the valve plate 71 needs to be closed, the water pressure at the water outlet is greater than the water pressure at the water inlet, and the water at the water outlet pushes the top column 96 in the hollow tube 91 upward, and the top column 96 pushes the second hook 84. Through the cooperation of the rotating shaft 83 and the second hook 84, the second hook 84 rotates, so that the clamping block 85 falls off from the support frame 81, and the valve plate 71 blocks the inside of the valve body 1, thereby achieving the effect of automatic reset of the stop valve.

[0033] Example 2

[0034] like Figure 1-4As shown, a flange 6 is fixed on the valve body 1, and a through hole is provided on the flange 6. Through the flange 6 and the through hole provided on the flange 6, the valve body 1 can pass through the through hole, so that the pipeline is fixedly connected to the valve body 1. The valve plate assembly 7 includes a valve plate 71, a gasket 72 is fixed to the bottom of the valve plate 71, and a damping rod 73 is fixed to the bottom of the valve plate 71. Through the cooperation of the valve plate 71 and the damping rod 73, the valve plate 71 can block the water outlet in the valve body 1 to achieve the effect of cutting off the water outlet. Through the gasket 72, the gasket 72 blocks the gap between the water outlet and the valve plate 71, so that the valve plate 71 and the water outlet can have a better sealing effect to prevent water leakage when the stop valve is closed. The other end of the damping rod 73 is fixed to the inner bottom of the valve body 1, and the valve plate 71 is fixed to the valve stem 4. Since one end of the damping rod 73 is fixed to the inner bottom of the valve body 1 and the other end is fixed to the bottom of the valve plate 71, the damping rod 73 is fixed to the inner bottom of the valve body 1. The valve plate 71 plays a buffering role, the support frame 81 is fixed to the inner top of the valve body 1, and the bottom of the block 85 is fixed to the valve plate 71. Since the support frame 81 is welded and fixed to the inner top of the valve body 1, the block 85 is fixed to the valve plate 71. When the block 85 is engaged with the support frame 81, the valve plate 71 can be fixed. A fixing block 92 is fixed to the hollow tube 91. A hole 93 is opened at the bottom of the hollow tube 91. The side of the fixing block 92 away from the hollow tube 91 is fixed to the valve body. 1, the top column 96 is slidably connected in the hollow tube 91, and the fixed block 92 is provided so that the fixed block 92 can weld and fix the reset assembly 9 in the valve body 1, and the hole 93 and the first sliding block 94 are provided, and air is contained between the hole 93 and the first sliding block 94, and the water pressure pushes the hole 93 upward through the hole 93, and the first sliding block 94 and the top column 96 are pushed upward from the hollow tube 91 through the air pressure, and the top column 96 pushes the second hook 84.

[0035] Working principle:

[0036] like Figure 1-4As shown, the operator connects the pipeline to the valve body 1 through the provided flange 6. When the stop valve is used, wastewater generated by the forged steel enters the valve body 1 from the water inlet of the stop valve. Through the water pressure of the wastewater, the wastewater pushes the valve plate 71 to the upper part of the valve body 1, so that the clamping block 85 is clamped in the support frame 81, so that the valve plate 71 can be fixed on the upper part of the valve body 1. When the valve plate 71 needs to be closed, the water pressure at the water outlet is greater than the water pressure at the water inlet. Through the provided fixing block 92, the fixing block 92 can fix the reset assembly 9 in the valve body 1. Through the provided hole 93 and the first sliding block 94, there is air between the hole 93 and the first sliding block 94, and the water pressure pushes the hole 93 upward through the hole 93. Push, through air pressure, the first sliding block 94 and the top column 96 are pushed upward from the hollow tube 91, and the top column 96 pushes the second hook 84. Through the cooperation of the rotating shaft 83 and the second hook 84, the second hook 84 rotates, so that the block 85 falls off from the support frame 81, and the valve plate 71 blocks the inside of the valve body 1, thereby achieving the effect of automatic resetting of the stop valve. Through the cooperation of the set valve plate 71 and the damping rod 73, the valve plate 71 can block the water outlet in the valve body 1 to achieve the effect of cutting off the water outlet. Through the set gasket 72, the valve plate 71 and the water outlet can have a better sealing effect to prevent water leakage when the stop valve is closed, so that the stop valve closes the water outlet.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A forged steel self-resetting stop valve, characterized in that: The valve body (1) comprises a valve cover (2) provided on the valve body (1), a bolt (3) being threadedly connected to the valve cover (2), a valve stem (4) being provided inside the valve body (1), a handle (5) being fixed on the side of the valve stem (4) away from the valve cover (2), a valve plate assembly (7) being provided inside the valve body (1), a clamping assembly (8) being provided inside the valve body (1), and a reset assembly (9) being provided on the side of the valve body (1) close to the clamping assembly (8); The clamping assembly (8) comprises a support frame (81), a first hook (82) is arranged on the support frame (81), a rotating shaft (83) is rotatably connected to a side of the support frame (81) away from the first hook (82), a second hook (84) is fixed on the rotating shaft (83), and a clamping block (85) is clamped on the first hook (82) and the second hook (84); The reset assembly (9) comprises a hollow tube (91), a first sliding block (94) is slidably connected inside the hollow tube (91), a second sliding block (95) is slidably connected on one side of the hollow tube (91) close to the top of the second sliding block (95), and a top column (96) is fixed on the top of the second sliding block (95).

2. A forged steel self-resetting stop valve according to claim 1, characterized in that: A flange (6) is fixed on the valve body (1), and a through hole is provided on the flange (6).

3. A forged steel self-resetting stop valve according to claim 1, characterized in that: The valve plate assembly (7) comprises a valve plate (71), a gasket (72) is fixed to the bottom of the valve plate (71), and a damping rod (73) is fixed to the bottom of the valve plate (71).

4. A forged steel self-resetting stop valve according to claim 3, characterized in that: The other end of the damping rod (73) is fixed to the inner bottom of the valve body (1), and the valve plate (71) is fixed to the valve stem (4).

5. A forged steel self-resetting stop valve according to claim 1, characterized in that: The support frame (81) is fixed to the inner top of the valve body (1), and the bottom of the clamping block (85) is fixed to the valve plate (71).

6. A forged steel self-resetting stop valve according to claim 1, characterized in that: A fixing block (92) is fixed on the hollow tube (91), a hole (93) is provided at the bottom of the hollow tube (91), a side of the fixing block (92) away from the hollow tube (91) is fixed inside the valve body (1), and the top column (96) is slidably connected inside the hollow tube (91).

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