Leakage-proof sealing valve device

Abstract

The utility model relates to the field of valves, in particular to a leakage-proof sealing valve device. According to an existing valve, the abrasion position of a sealing sleeve is difficult to block, and the sealing effect of the valve is not good enough. A leakage-proof sealing valve device comprises a valve body, a rotating lead screw, a flashboard and the like. A rotating lead screw is rotationally connected to the valve body, and a gate plate is connected to the rotating lead screw through threads. A worker reversely rotates a rotating handle, the rotating handle reversely rotates to drive a rotating lead screw to reversely rotate, the rotating lead screw reversely rotates to drive a flashboard to reset downwards, when the flashboard downwards resets to be about to make contact with a sealing sleeve, the flashboard is disengaged from a guide plate, and the guide plate, a movable plate, a rubber sheet and a movable rod are driven by a tension spring to reset; the rubber sheet makes contact with the valve body, the sealing sleeve and the valve, the rubber sheet can block the gate plate, the valve body and the sealing sleeve from the side face, and therefore the sealing effect of the valve is better.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a leak-proof sealing valve device. Background Art

[0002] Valves are control components in fluid conveying systems. They are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. The valve structure mainly uses structures such as the valve plate, gate plate, and valve ball to achieve a closed seal on the valve body, thereby shutting off the fluid during conveying, blocking the passage in the valve body, shutting off the fluid, and achieving overall control of the valve.

[0003] Most of the existing valves are sealed with a single sealing method. After the valve has been used for a long time, the reciprocating up and down movement of the gate will easily cause the side wall of the sealing sleeve to wear. The gate movement trajectory is up and down, and the gate is difficult to squeeze the sealing sleeve on the side, causing the sealing sleeve on the side to deform, and then the worn part on the sealing sleeve on the side is blocked, which leads to the valve sealing effect being poor. Utility Model Content

[0004] In order to overcome the disadvantage that the existing valve is difficult to seal the worn part of the sealing sleeve, which leads to poor sealing effect of the valve, the utility model provides a leak-proof sealing valve device that can seal the sealing sleeve from the side, thereby improving the sealing effect of the valve.

[0005] The technical solution is as follows: a leak-proof sealing valve device, including a valve body, a rotating screw, a gate, a sealing sleeve and a rotating handle. The valve body is rotatably connected to the rotating screw, and the rotating screw is connected to the gate by a thread. The gate is arranged inside the valve body, and the sealing sleeve is fixedly connected to the valve body. The gate is slidably connected to the valve body, and the sealing sleeve is slidably connected to the gate. The upper end of the rotating screw is fixedly connected to the rotating handle, a moving component is provided on the valve body, a pressurizing component is provided on the moving component, and a locking component is provided on the valve body. The moving component is used for secondary sealing of the gate, the pressurizing component is used to apply pressure, and the locking component is used to lock the rotating screw.

[0006] Furthermore, the moving assembly includes a moving plate, a rubber sheet, a guide plate and a moving rod. Four moving rods are slidingly connected to the valve body, two moving rods form a group, and there are two moving plates in total. A moving plate is fixedly connected between each group of moving rods, a rubber sheet is fixedly connected to each moving plate, a guide plate is fixedly connected to each moving plate, and each guide plate is provided with an inclined surface.

[0007] Furthermore, the pressurizing assembly includes a tension spring and a shell, four tension springs are fixedly connected between four moving rods and a valve body respectively, a shell is fixedly connected to both sides of the valve body respectively, and the four moving rods and four tension springs are located in the two shells.

[0008] Further, the locking assembly includes a fixed seat and a locking screw. The fixed seat is fixedly connected to the top of the valve body, and the locking screw is threadedly connected to the fixed seat.

[0009] Advantages of the present utility model: 1. When the staff reverses the rotary handle, the reverse rotation of the rotary handle will drive the rotating screw rod to reverse, and the reverse rotation of the rotating screw rod will drive the gate plate to reset downward. When the gate plate resets downward and is about to contact the sealing sleeve, the gate plate will disengage from the guide plate. The guide plate, the moving plate, the rubber sheet and the moving rod will reset under the drive of the tension spring. The rubber sheet contacts the valve body, the sealing sleeve and the valve. The rubber sheet will seal the gate plate, the valve body and the sealing sleeve from the side, thereby making the sealing effect of the valve better.

[0010] 2. When the staff reverses the locking screw to reset it, the reset locking screw will lock the rotating screw rod, preventing the staff from accidentally touching the valve and causing the valve to rotate, thereby making the valve safer. Description of the Drawings

[0011] Figure 1 is a three-dimensional structural diagram of the present utility model.

[0012] Figure 2 is a first partially sectional three-dimensional structural diagram of the present utility model.

[0013] Figure 3 is a second partially sectional three-dimensional structural diagram of the present utility model.

[0014] Figure 4 is a partial three-dimensional structural diagram of the present utility model.

[0015] Figure 5 is a third partially sectional three-dimensional structural diagram of the present utility model.

[0016] Reference numerals in the drawings: 1-valve body, 2-rotating screw rod, 3-gate plate, 4-sealing sleeve, 5-rotary handle, 6-moving plate, 61-rubber sheet, 7-guide plate, 8-moving rod, 9-tension spring, 10-housing, 11-fixed seat, 12-locking screw. Detailed Embodiments

[0017] The present utility model will be further described below with reference to the drawings and embodiments.

[0018] Embodiment 1: A leak-proof sealing valve device, as Figures 1 - 5As shown, it includes a valve body 1, a rotating screw rod 2, a gate plate 3, a sealing sleeve 4 and a rotating handle 5. The valve body 1 is rotatably connected to the rotating screw rod 2, and the rotating screw rod 2 is connected to the gate plate 3 by a thread. The gate plate 3 is arranged inside the valve body 1, and the gate plate 3 is slidably connected to the valve body 1. A sealing sleeve 4 is fixedly connected to the valve body 1, and the sealing sleeve 4 is made of rubber. The sealing sleeve 4 is slidably connected to the gate plate 3, and a rotating handle 5 is welded to the upper end of the rotating screw rod 2. A moving component is provided on the valve body 1, and a pressurizing component is provided on the moving component. A locking component is provided on the valve body 1. The moving component is used for secondary sealing of the gate plate 3, the pressurizing component is used for applying pressure, and the locking component is used for locking the rotating screw rod 2.

[0019] The moving assembly includes a moving plate 6, a rubber sheet 61, a guide plate 7 and a moving rod 8. Four moving rods 8 are slidingly connected to the valve body 1. Two moving rods 8 form a group. There are two moving plates 6 in total. A moving plate 6 is welded between each group of moving rods 8. A rubber sheet 61 is fixedly connected to each moving plate 6. A guide plate 7 is welded to each moving plate 6. Each guide plate 7 is provided with an inclined surface.

[0020] The pressurizing assembly includes a tension spring 9 and a shell 10. Four tension springs 9 are fixedly connected between four moving rods 8 and a valve body 1. A shell 10 is welded on both sides of the valve body 1. The four moving rods 8 and the four tension springs 9 are located in the two shells 10.

[0021] Initially, the tension spring 9 is in a stretched state. The tension spring 9 in the stretched state squeezes the rubber sheet 61 and the gate plate 3 through the moving rod 8 and the moving plate 6, so that the rubber sheet 61 fits tightly against the gate plate 3. The staff rotates the rotating handle 5. The rotation of the rotating handle 5 drives the rotating screw rod 2 to rotate. The rotation of the rotating screw rod 2 squeezes the gate plate 3 through the thread on the rotating screw rod 2, so that the gate plate 3 moves upward. The upward movement of the gate plate 3 contacts the inclined surface of the guide plate 7 and pushes the guide plate 7 to move. The movement of the guide plate 7 drives the moving plate 6 and the moving rod 8 to move. The movement of the moving rod 8 further stretches the tension spring 9. At the same time, the moving plate 6 drives the rubber sheet 61 to disengage from the gate plate 3, and then the gate plate 3 continues to move upward. Move. After the valve is fully opened, the staff stops turning the rotating handle 5; the staff reverses the rotating handle 5, and the reversal of the rotating handle 5 will drive the rotating screw rod 2 to reverse, and the reversal of the rotating screw rod 2 will drive the gate 3 to reset downward. When the gate 3 is reset downward to the point of being in contact with the sealing sleeve 4, the gate 3 will disengage from the guide plate 7, and the guide plate 7, the moving plate 6, the rubber sheet 61 and the moving rod 8 will be reset under the drive of the tension spring 9, and the rubber sheet 61 will contact the valve body 1, the sealing sleeve 4 and the valve, and the rubber sheet 61 will block the gate 3, the valve body 1 and the sealing sleeve 4 from the side, thereby making the sealing effect of the valve better, and the gate 3 continues to reset downward, and then the staff stops turning the rotating handle 5.

[0022] Embodiment 2: On the basis of Embodiment 1, as Figure 5 shown, the locking assembly includes a fixed seat 11 and a locking screw 12. The fixed seat 11 is welded to the top of the valve body 1, and the locking screw 12 is threadedly connected to the fixed seat 11. The locking screw 12 is used to lock the rotating lead screw 2.

[0023] At first, the worker rotates the locking screw 12. The rotation of the locking screw 12 will squeeze the fixed seat 11 through the threads on the locking screw 12, causing the locking screw 12 to move. When the locking screw 12 moves, it no longer clamps the rotating lead screw 2, enabling the rotating lead screw 2 to rotate. After the valve is adjusted, the worker reverses the locking screw 12 to reset it. The resetting of the locking screw 12 will clamp the rotating lead screw 2, preventing the worker from accidentally touching the valve and causing the valve to rotate, thereby making the valve safer.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes may be made therein without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof sealing valve device, characterized in that, It includes a valve body (1), a rotating lead screw (2), a gate plate (3), a sealing sleeve (4) and a rotating handle (5). The valve body (1) is rotatably connected with the rotating lead screw (2). The gate plate (3) is threadedly connected to the rotating lead screw (2). The gate plate (3) is arranged inside the valve body (1) and is slidably connected to the valve body (1). A sealing sleeve (4) is fixedly connected inside the valve body (1), and the sealing sleeve (4) is slidably connected to the gate plate (3). The upper end of the rotating lead screw (2) is fixedly connected with the rotating handle (5). A moving component is arranged on the valve body (1), a pressurizing component is arranged on the moving component, and a locking component is arranged on the valve body (1). The moving component is used for secondary sealing of the gate plate (3), the pressurizing component is used for applying pressure, and the locking component is used for locking the rotating lead screw (2).

2. The leak-proof sealing valve device according to claim 1, characterized in that, The moving component includes a moving plate (6), a rubber sheet (61), a guide plate (7) and a moving rod (8). Four moving rods (8) are slidably connected to the valve body (1). Two moving rods (8) form a group, and a moving plate (6) is fixedly connected between each group of moving rods (8). There are two moving plates (6) in total. A rubber sheet (61) is fixedly connected to each moving plate (6), and a guide plate (7) is fixedly connected to each moving plate (6). An inclined surface is provided on each guide plate (7).

3. The anti-leakage sealing valve device according to claim 2, characterized in that, The pressurizing component includes a tension spring (9) and a housing (10). Four tension springs (9) are respectively fixedly connected between the four moving rods (8) and a valve body (1). A housing (10) is fixedly connected to each side of the valve body (1). The four moving rods (8) and the four tension springs (9) are located inside the two housings (10).

4. The anti-leakage sealing valve device according to claim 3, characterized in that, The locking component includes a fixed seat (11) and a locking screw (12). The fixed seat (11) is fixedly connected to the top of the valve body (1), and the locking screw (12) is threadedly connected to the fixed seat (11).

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