Quick-plug stop valve with bidirectional stop function

Abstract

According to the quick-plug stop valve with the two-way stop function, sealing units are arranged in a valve body and a valve cover, a sealing gasket is attached to a communication groove, the communication groove is sealed under the action of the sealing gasket, the sealing effect on a liquid discharging channel and a liquid inlet channel is guaranteed, and the sealing effect of the valve body and the valve cover is guaranteed. When the sealing gasket moves to drive the sealing seat to be inserted into the communicating groove, the communicating groove is gradually blocked through the sealing seat, the liquid inlet channel is cut off, the sealing gasket is matched, two-way cut-off is completed, the sealing effect is guaranteed, and when pressure in the liquid inlet channel fluctuates, pressure fluctuation is buffered under the action of the sealing seat.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stop valve, concretely is fast plug stop valve with bidirectional stop function. BACKGROUND

[0002] The stop valve controls the flow of fluid by the movement of the valve disc on the valve seat, the valve disc moves linearly along the center line of the valve seat, changes the distance between the valve disc and the valve seat, thereby changes the sectional area of the flow passage, realizes the control and cut-off of flow.

[0003] In the prior art, when the valve body is sealed, the sealing gasket is moved by adjusting, at this time the sealing gasket is in contact with the communication groove, and the valve body is sealed, but the sealing gasket is used to seal the valve body, only the communication groove is sealed, when the pressure fluctuates at the liquid inlet, the sealing gasket is impacted, and after long-term impact, the sealing is not tight, the sealing gasket is used to seal the communication groove under the action of the sealing gasket, the sealing effect of the liquid discharge channel and the liquid inlet channel is guaranteed, when the sealing gasket moves, the sealing seat is inserted in the communication groove, the communication groove is gradually blocked by the sealing seat, the stop is completed, the bidirectional stop is completed with the sealing gasket, and the sealing effect is guaranteed, when the pressure fluctuates, the pressure fluctuation is buffered under the action of the sealing seat, so we provide a fast plug stop valve with bidirectional stop function SUMMARY

[0004] The utility model discloses a fast plug stop valve with bidirectional stop function, which solves the problems in the background art.

[0005] The fast plug stop valve with bidirectional stop function comprises a valve body and a valve cover installed above the valve body, a sealing unit is arranged in the valve body and the valve cover, and the sealing unit comprises:

[0006] A sealing gasket is arranged in the valve body, and the sealing gasket is used to stop the valve body.

[0007] A shielding frame is fixedly connected to the top end face of the sealing gasket.

[0008] A mounting seat is installed in the shielding frame.

[0009] A lead screw is rotatably connected to the top end face of the mounting seat, and the lead screw is screw-connected to the inner wall of the valve cover, so that the sealing gasket and the sealing seat are moved by the lead screw, and the opening and closing of the valve body are controlled.

[0010] A sealing seat is slidably connected to the inside of the sealing gasket, and the sealing seat is used to stop the valve body.

[0011] Preferably, the valve body has an inlet channel and a outlet channel, the inlet channel being used for inleting liquid and the outlet channel being used for outlet discharging liquid.

[0012] Preferably, a connecting groove is provided between the liquid inlet channel and the liquid outlet channel, the sealing seat is inserted into the connecting groove, and the sealing gasket is in contact with the connecting groove.

[0013] Preferably, a sliding seat is fixedly connected to the top end face of the sealing seat, and the sliding seat is slidably connected to the inner wall of the shielding frame.

[0014] Preferably, the inner wall of the sliding seat is slidably connected with a plurality of sliding rods, and the two ends of the sliding rods are respectively fixedly connected to the mounting seat and the sealing gasket.

[0015] Preferably, the plurality of sliding rods are distributed at equal intervals in the shielding frame.

[0016] Preferably, the outer peripheral wall of the sliding rod is fitted with a plurality of springs, and the two ends of the springs are fixedly connected to the mounting base and the sliding base, respectively.

[0017] By adopting the above technical solution, the connecting groove is sealed by the sealing gasket, which ensures the sealing effect of the drain channel and the inlet channel. The connecting groove is gradually blocked by the sealing seat to complete the cut-off. With the sealing gasket, the bidirectional cut-off is completed to ensure the sealing effect. When the pressure fluctuates, the pressure fluctuation is buffered by the sealing seat.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This quick-connect shut-off valve with bidirectional shut-off function has a sealing unit in the valve body and valve cover. The sealing gasket fits into the connecting groove, and the connecting groove is sealed under the action of the sealing gasket, ensuring the sealing effect of the drain channel and the inlet channel. When the sealing gasket moves, it drives the sealing seat to insert into the connecting groove, and the connecting groove is gradually blocked by the sealing seat, thus completing the shut-off of the inlet channel. In conjunction with the sealing gasket, bidirectional shut-off is completed, ensuring the sealing effect. When the pressure in the inlet channel fluctuates, the pressure fluctuation is buffered under the action of the sealing seat. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure in this embodiment;

[0020] Figure 2 This is a schematic diagram of the internal structure of the valve body in this embodiment;

[0021] Figure 3 This is a schematic diagram showing the connection between the sealing unit and the valve body in this embodiment;

[0022] Figure 4 This is a schematic diagram of the sealing unit structure in this embodiment.

[0023] In the diagram: 1. Valve body; 11. Inlet channel; 12. Drain channel; 2. Valve cover; 3. Sealing unit; 31. Sealing gasket; 32. Shielding frame; 33. Mounting base; 34. Lead screw; 35. Sealing seat; 36. Sliding seat; 37. Sliding rod; 38. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Please see Figures 1-3 This utility model provides a technical solution: a quick-connect shut-off valve with bidirectional shut-off function, including a valve body 1 and a valve cover 2 installed on top of the valve body 1. A sealing unit 3 is provided in the valve body 1 and the valve cover 2. The sealing unit 3 includes:

[0027] A sealing gasket 31 is disposed in the valve body 1, and the sealing gasket 31 is used to shut off the valve body 1;

[0028] The shielding frame 32 is fixedly connected to the top end face of the sealing gasket 31;

[0029] Mounting base 33 is installed in shielding frame 32;

[0030] The lead screw 34 is rotatably connected to the top end face of the mounting base 33. The lead screw 34 is threaded to the inner wall of the valve cover 2. The lead screw 34 drives the sealing gasket 31 and the sealing seat 35 to move, thereby controlling the opening and closing of the valve body 1.

[0031] The sealing seat 35 is slidably connected inside the sealing gasket 31. The sealing seat 35 is used to shut off the valve body 1. The lower part of the sealing seat 35 is set to be arc-shaped.

[0032] When the control screw 34 rotates, the adjusting mounting base 33 moves under the rotation of the screw 34. Under the movement of the mounting base 33, the blocking frame 32 moves accordingly, and the blocking frame 32 gradually cuts off the drainage channel 12.

[0033] When the sealing gasket 31 moves, it comes into contact with the connecting groove, and the connecting groove is sealed under the action of the sealing gasket 31, so as to ensure the sealing effect of the drain channel 12 and the inlet channel 11.

[0034] When the sealing gasket 31 moves, it causes the sealing seat 35 to be inserted into the connecting groove. The sealing seat 35 gradually blocks the connecting groove, thus completing the cut-off of the liquid inlet channel 11. Together with the sealing gasket 31, it completes the bidirectional cut-off and ensures the sealing effect.

[0035] The valve body 1 has an inlet channel 11 and a drain channel 12. The inlet channel 11 is used for inleting liquid, and the drain channel 12 is used for draining liquid.

[0036] A connecting groove is provided between the liquid inlet channel 11 and the liquid outlet channel 12. The sealing seat 35 is inserted into the connecting groove, and the sealing gasket 31 is in contact with the connecting groove.

[0037] The outer peripheral wall of the mounting base 33 is provided with a sealing ring, which is fixedly connected to the inner wall of the valve body 1. The outer peripheral wall of the sealing base 35 is provided with a sealing ring, which is fixedly connected to the connecting groove.

[0038] The sealing gasket 31 is fitted into the connecting groove to seal the drain channel 12 in the valve body 1, and the sealing seat 35 is inserted into the connecting groove to seal the inlet channel 11 in the valve body 1.

[0039] Example 2:

[0040] Please see Figures 1-3 A sliding seat 36 is fixedly connected to the top end face of the sealing seat 35, and the sliding seat 36 is slidably connected to the inner wall of the shielding frame 32.

[0041] When the control screw 34 rotates, the adjusting mounting base 33 moves under the rotation of the screw 34. Under the movement of the mounting base 33, the blocking frame 32 moves accordingly, and the blocking frame 32 gradually cuts off the drainage channel 12.

[0042] When the sealing gasket 31 moves, it comes into contact with the connecting groove, and the connecting groove is sealed under the action of the sealing gasket 31, so as to ensure the sealing effect of the drain channel 12 and the inlet channel 11.

[0043] When the sealing gasket 31 moves, it causes the sealing seat 35 to be inserted into the connecting groove. The sealing seat 35 gradually blocks the connecting groove, thus completing the cut-off of the liquid inlet channel 11. Together with the sealing gasket 31, it completes the bidirectional cut-off and ensures the sealing effect.

[0044] Multiple sliding rods 37 are slidably connected to the inner wall of the sliding seat 36, and the two ends of the sliding rods 37 are fixedly connected to the mounting seat 33 and the sealing gasket 31 respectively.

[0045] When the sealing gasket 31 moves the sealing seat 35, the sealing gasket 31 moves the sealing seat 35 into the connecting groove. The sealing seat 35 gradually blocks the valve, preventing the valve from closing too quickly and causing water hammer.

[0046] When the sealing seat 35 seals the connecting groove, under water pressure, the sealing seat 35 is pushed to move the sliding seat 36. At this time, the sliding seat 36 slides along the outer peripheral wall of the sliding rod 37, causing the sealing seat 35 to move accordingly, further slowing down the closing of the valve body 1 and further avoiding the water hammer effect.

[0047] Multiple sliding rods 37 are evenly distributed in the blocking frame 32.

[0048] Multiple springs 38 are sleeved on the outer peripheral wall of the sliding rod 37, and the two ends of the springs 38 are fixedly connected to the mounting base 33 and the sliding base 36 respectively.

[0049] When the sealing seat 35 pushes the sliding seat 36 to move, the sliding seat 36 pushes the sliding rod 37 to compress the sliding rod 37. Under the rebound of the sliding rod 37, a thrust is generated on the sliding seat 36 and the sealing seat 35.

[0050] When the sealing gasket 31 is in contact with the connecting groove, the sealing seat 35 is fully inserted into the connecting groove, sealing the liquid inlet channel 11. Together with the sealing gasket 31, it provides bidirectional shut-off for both the liquid inlet channel 11 and the liquid outlet channel 12, ensuring a sealing effect.

[0051] When the pressure in the liquid inlet channel 11 fluctuates, the sealing seat 35 is pushed to move the sliding seat 36. Under the action of the sealing seat 35, the pressure fluctuation is buffered. When the pressure fluctuation disappears, the sealing seat 35 is pushed back to the starting position under the action of the spring 38.

Claims

1. A fast plug-off valve with bidirectional cut-off function, comprising a valve body (1) and a valve cover (2) installed above the valve body (1), a sealing unit (3) is arranged in the valve body (1) and the valve cover (2), characterized in that: The sealing unit (3) comprises: A sealing gasket (31) is arranged in the valve body (1), and the sealing gasket (31) is used for cutting off the valve body (1); A shielding frame (32) is fixedly connected to the top end surface of the sealing gasket (31); A mounting seat (33) is mounted in the shielding frame (32); A lead screw (34) is rotatably connected to the top end surface of the mounting seat (33), and the lead screw (34) is threadedly connected to the inner wall of the valve cover (2), the sealing gasket (31) and the sealing seat (35) are driven to move by the lead screw (34), and the opening and closing of the valve body (1) is controlled; A sealing seat (35) is slidably connected to the inside of the sealing gasket (31), and the sealing seat (35) is used for cutting off the valve body (1).

2. The fast insertion cut-off valve having a bidirectional cut-off function according to claim 1, wherein: The valve body (1) is provided with a liquid inlet channel (11) and a liquid outlet channel (12), the liquid inlet channel (11) is used for liquid inlet, and the liquid outlet channel (12) is used for liquid outlet.

3. The fast plug shut-off valve having a bidirectional shut-off function according to claim 2, characterized in that: The liquid inlet channel (11) and the liquid outlet channel (12) are provided with a communication groove, the sealing seat (35) is inserted into the communication groove, and the sealing gasket (31) is fitted with the communication groove.

4. The fast plug shut-off valve having a bidirectional shut-off function according to claim 1, wherein: The top end surface of the sealing seat (35) is fixedly connected with a sliding seat (36), and the sliding seat (36) is slidably connected to the inner wall of the shielding frame (32).

5. The fast plug-in shutoff valve having a bidirectional shutoff function according to claim 4, characterized in that: The inner wall of the sliding seat (36) is slidably connected with a plurality of sliding rods (37), and the two ends of the sliding rod (37) are fixedly connected with the mounting seat (33) and the sealing gasket (31), respectively.

6. The fast plug shut-off valve having a bidirectional shut-off function according to claim 5, wherein: A plurality of the sliding rods (37) are equidistantly distributed in the shielding frame (32).

7. The fast plug-in shut-off valve with bidirectional shut-off function according to claim 6, characterized in that: The outer peripheral wall of the sliding rod (37) is sleeved with a plurality of springs (38), and the two ends of the spring (38) are fixedly connected with the mounting seat (33) and the sliding seat (36), respectively.

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