Flat gate valve with connecting and sealing structure

Abstract

The utility model provides a flat gate valve with a connecting and sealing structure, and relates to the technical field of gate valve sealing. The flat gate valve with the connecting and sealing structure comprises a valve body, a valve chamber is arranged on the inner wall of the valve body and comprises an open flow groove and a closed flow groove, the open flow groove is located on the upper portion of the closed flow groove, a flat gate is slidably connected into the valve chamber, flow guide openings are formed in the two sides of the valve chamber, and sealing rings are fixedly connected to the inner walls of the flow guide openings. And the outer wall of the sealing ring is bonded with the inner wall of the flow guide opening. According to the flat gate valve with the connection sealing structure, the sealing ring and the movable ring are arranged, and the movable ring is driven by descending power of the flat gate to move towards the valve chamber and extrude the sealing ring, so that the inner wall of the sealing ring is tightly attached to the surface wall of the flat gate valve, and the outer wall of the sealing ring is fixed to the inner wall of the flow guide opening in a sealed mode; in this way, the sealing performance between the bulkhead gate and the inner wall of the flow guide opening can be improved, and the using sealing performance of the bulkhead gate valve is effectively improved.

Description

Technical Field

[0001] The utility model relates to a flat gate valve with a connection sealing structure, in particular to a flat gate valve with a connection sealing structure, and belongs to the technical field of gate valve sealing. Background Art

[0002] The flat gate valve is a sliding valve with parallel gates as the closing part. The closing part can be a single gate or a double gate with a spreading mechanism between them. The pressing force of the gate to the valve seat is controlled by the medium pressure acting on the floating gate or floating valve seat. If it is a double-disc flat gate valve, the spreading mechanism between the two gates can supplement this pressing force.

[0003] According to the driving mode, the flat gate valve can be divided into manual flat gate valve, pneumatic flat gate valve and electric flat gate valve. According to the purpose and application, it can be divided into flat gate valve with diversion hole, flat gate valve without diversion hole, oil field flat gate valve, pipeline flat gate valve and gas flat gate valve, etc. The valve seat adopts O-ring sealing and floating valve seat structure with pre-tightening force, so that the flat gate valve can be sealed in both directions; and the opening and closing torque of this structure is only 1 / 2 of that of ordinary valves, which can achieve easy opening and closing of the valve; the valve stem is threaded to the bracket; pin and spot welding; with stability.

[0004] At present, long-term use of the flat gate valve will affect the sealing of the flat gate valve and reduce the sealing between the gate and the inner wall of the diversion port, so that the water leaks through the gap between the gate and the inner wall of the diversion port, thus affecting the connection sealing of the entire flat gate valve and reducing the use effect of the flat gate valve. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to provide a flat gate valve with a connection sealing structure in order to solve the above problems, so as to solve the problem of low sealing performance of the flat gate valve in the prior art.

[0007] (II) Technical solution

[0008] The utility model is implemented through the following technical scheme: a flat gate valve with a connecting sealing structure, comprising a valve body, an inner wall of the valve body is provided with a valve chamber, the valve chamber comprises an open flow groove and a closed flow groove, the open flow groove is located at the upper part of the closed flow groove, a flat gate is slidably connected to the valve chamber, both sides of the valve chamber are formed with guide ports, a sealing ring is fixedly connected to the inner wall of the guide port, the outer wall of the sealing ring is bonded to the inner wall of the guide port, and the sealing ring is made of rubber, a movable ring is slidably connected to the cavity of the guide port, two adjusting pins are fixedly connected to one side of the movable ring, the two adjusting pins are both located on the inner side of the sealing ring, slots slidably connected to the adjusting pins are provided on both sides of the flat gate, an adjusting slot contacting the top end of the adjusting pin is provided on the top wall inside the slot, the sealing ring is located between the movable ring and the flat gate, the guide port is formed on the inner wall of one side of the closed flow groove, and the flat gate is adapted to the closed flow groove cavity.

[0009] Preferably, the movable ring is fixedly connected to a tilted plate on one side of the flat gate, the tilted plate is located on one side of the adjustment pin, and the tilted plate is located above the adjustment pin, and two sliding grooves slidably connected to the tilted plate are opened on one side of the flat gate.

[0010] Preferably, a fixing ring is fixedly connected to the inner wall of the guide port, and the fixing ring is located on the side of the movable ring away from the flat gate. A spring is installed in the fixing groove opened on one side of the fixing ring, and the movable ring is slidably connected in the cavity of the fixing groove, and the side of the movable ring away from the sealing ring is fixedly connected to one end of the spring.

[0011] Preferably, the adjusting pin comprises a mounting plate, a connecting block and an adjusting block, the connecting block is fixedly connected between the mounting plate and the adjusting block, the mounting plate is mounted on one side of the movable ring, and the top of the adjusting block and one side of the movable ring is an inclined surface.

[0012] Preferably, the side of the inclined plate facing away from the movable ring is an inclined surface.

[0013] Preferably, a threaded rod is rotatably connected to the top of the valve chamber, a bump is fixedly connected to the bottom end of the threaded rod, a convex groove which is plugged into the bump is provided on the upper part of the flat gate, a turntable is rotatably connected to the top of the valve body, and the turntable is threadedly sleeved on the outside of the threaded rod.

[0014] Preferably, a sealing plate is fixedly connected to the bottom of the flat gate, and the sealing plate is in contact with the bottom wall inside the valve chamber.

[0015] Preferably, both ends of the valve body are fixedly connected with flanges, and the flanges are located at the notch of the guide port away from the valve chamber.

[0016] The utility model provides a flat gate valve with a connection sealing structure, which has the following beneficial effects:

[0017] 1. The flat gate valve with a connected sealing structure is provided with a sealing ring and a movable ring. The power of the flat gate descending is used to drive the movable ring to move toward the valve chamber and squeeze the sealing ring, so that the inner wall of the sealing ring is tightly fitted on the surface wall of the flat gate valve, and the outer wall of the sealing ring is sealed and fixed on the inner wall of the guide port, thereby increasing the sealing between the flat gate and the inner wall of the guide port, and thus effectively improving the sealing of the flat gate valve.

[0018] 2. The flat gate valve with a connecting sealing structure is provided with an adjusting pin and an inclined plate, and an adjusting groove and a sliding groove are opened on the flat gate. When the flat gate valve is used to move and close the guide port groove, the adjusting pin and the adjusting groove are used to move the movable ring toward the valve chamber. In this way, the activity of the movable ring can be adjusted without installing other driving equipment or structures, and without other operations, thereby effectively improving the convenience of using the flat gate valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the utility model as a whole;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the valve body of the utility model;

[0021] Figure 3 It is a sectional stereogram of the utility model as a whole;

[0022] Figure 4 For this utility model Figure 3 A magnified view of the structure of part A;

[0023] Figure 5 It is a three-dimensional schematic diagram of the sealing ring and the movable ring of the utility model;

[0024] Figure 6 It is a three-dimensional schematic diagram of the cooperation between the threaded rod and the flat gate of the utility model;

[0025] Figure 7 It is a cross-sectional three-dimensional schematic diagram of the flat gate of the utility model;

[0026] Figure 8 It is a three-dimensional schematic diagram of the flat gate of the utility model.

[0027]

Main component symbol description

[0028] 1. Valve body; 2. Valve chamber; 3. Flat gate; 4. Diversion port; 5. Sealing ring; 6. Movable ring; 7. Adjusting pin; 8. Slot; 9. Adjusting groove; 10. Fixed ring; 11. Inclined plate; 12. Slide groove; 13. Threaded rod; 14. Bump; 15. Convex groove; 16. Sealing plate; 17. Flange. DETAILED DESCRIPTION

[0029] The embodiment of the utility model provides a flat gate valve with a connection sealing structure.

[0030] See also Figures 1 to 8 , including a valve body 1, a valve chamber 2 is arranged on the inner wall of the valve body 1, the valve chamber 2 includes an open flow groove and a closed flow groove, the open flow groove is located at the upper part of the closed flow groove, a flat gate 3 is slidably connected in the valve chamber 2, guide ports 4 are formed on both sides of the valve chamber 2, a sealing ring 5 is fixedly connected on the inner wall of the guide port 4, the outer wall of the sealing ring 5 is bonded to the inner wall of the guide port 4, and the sealing ring 5 is made of rubber, a movable ring 6 is slidably connected in the cavity of the guide port 4, two adjusting pins 7 are fixedly connected to one side of the movable ring 6, and the two adjusting pins 7 are both located on the inner side of the sealing ring 5, slots 8 slidably connected to the adjusting pins 7 are arranged on both sides of the flat gate 3, and an adjusting groove 9 contacting the top of the adjusting pin 7 is arranged on the top wall inside the slot 8, the sealing ring 5 is located between the movable ring 6 and the flat gate 3, the guide port 4 is formed on the inner wall of one side of the closed flow groove, and the flat gate 3 is adapted to the closed flow groove cavity;

[0031] The fluid passes through the valve chamber 2 through the guide port 4 on one side, and then is discharged from the other guide port 4. The flat gate 3 slides in the valve chamber 2, so that the flat gate 3 seals the passage between the valve chamber 2 and the guide port 4.

[0032] When the valve body 1 is closed, the flat gate 3 will descend. During the descent of the flat gate 3, the adjusting pin 7 will be inserted into the lowest area inside the slot 8, and as the flat gate 3 continues to descend, the adjusting pin 7 will slide along the slot 8 to the cavity of the adjusting slot 9, and the inner wall of the adjusting slot 9 will be used to press against the side wall of the adjusting pin 7, so that the adjusting pin 7 moves toward the flat gate 3, and the adjusting pin 7 drives the movable ring 6 to move toward the flat gate 3, so that the movable ring 6 and the flat gate 3 cooperate to clamp and compress the inner wall of the sealing ring 5;

[0033] The outer wall of the sealing ring 5 is adhered and fixed to the inner wall of the diversion port 4 by using glue material, and the inner wall of the diversion port 4 and the flat gate 3 are used to clamp the outer wall of the sealing ring 5 at the same time.

[0034] See also Figure 5 The movable ring 6 is located on one side of the flat gate 3 and is fixedly connected with an inclined plate 11. The inclined plate 11 is located on one side of the adjusting pin 7, and the inclined plate 11 is located above the adjusting pin 7. Two sliding grooves 12 that are slidably connected to the inclined plate 11 are opened on one side of the flat gate 3.

[0035] See also Figure 2 and Figure 5A fixed ring 10 is fixedly connected to the inner wall of the guide port 4, and the fixed ring 10 is located on the side of the movable ring 6 away from the flat gate 3. A spring is installed in the fixed groove opened on one side of the fixed ring 10, and the movable ring 6 is slidably connected in the cavity of the fixed groove, and the side of the movable ring 6 away from the sealing ring 5 is fixedly connected to one end of the spring;

[0036] When the flat gate 3 descends, the flat gate 3 will first contact the inclined surface of the upper part of the inclined plate 11. At this time, the flat gate 3 is used to squeeze and push the inclined plate 11 to move away from the flat gate 3, so that the movable ring 6 moves away from the flat gate 3. At this time, the movable ring 6 compresses the spring until the slide groove 12 on the flat gate 3 corresponds to the inclined plate 11. The spring force is used to reset the movable ring 6 and insert the inclined plate 11 into the cavity of the slide groove 12. At this time, the adjusting pin 7 will be inserted into the slot 8. As the adjusting pin 7 slides in the slot 8, the inclined plate 11 will also slide in the slide groove 12.

[0037] See also Figure 5 The adjusting pin 7 includes a mounting plate, a connecting block and an adjusting block, the connecting block is fixedly connected between the mounting plate and the adjusting block, the mounting plate is mounted on one side of the movable ring 6, and the top of the adjusting block and one side of the movable ring 6 is an inclined surface;

[0038] The inclined surface of the adjusting pin 7 will contact the inclined surface of the inner wall of the adjusting groove 9. With the longitudinal movement of the flat gate 3, the inclined surface on the adjusting groove 9 will be used to push the adjusting pin 7 to move horizontally.

[0039] See also Figure 5 The side of the inclined plate 11 away from the movable ring 6 is an inclined surface.

[0040] See also Figure 3 and Figure 6 A threaded rod 13 is rotatably connected to the top of the valve chamber 2, a convex block 14 is fixedly connected to the bottom of the threaded rod 13, a convex groove 15 is provided on the upper part of the flat gate 3 and plugged into the convex block 14, a turntable is rotatably connected to the top of the valve body 1, and the turntable is threadedly sleeved on the outer side of the threaded rod 13;

[0041] By rotating the turntable, the turntable uses the threaded rod 13 to drive the flat gate 3 to rise and fall, and the convex groove 15 is adapted to the protrusion 14, so that the protrusion 14 can only slide in the convex groove 15 but cannot rotate in the convex groove 15.

[0042] See also Figure 6 , a sealing plate 16 is fixedly connected to the bottom of the flat gate 3, and the sealing plate 16 is in contact with the bottom wall inside the valve chamber 2;

[0043] The sealing plate 16 is made of rubber, and is used to seal the bottom of the flat gate 3 and the bottom wall inside the valve chamber 2 .

[0044] See also Figure 1 Both ends of the valve body 1 are fixedly connected with flanges 17 , and the flanges 17 are located at the groove of the guide port 4 away from the valve chamber 2 .

[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flat gate valve with a connection sealing structure, comprising a valve body (1), wherein the inner wall of the valve body (1) is provided with a valve chamber (2), a flat gate (3) is slidably connected in the valve chamber (2), and flow guide ports (4) are formed on both sides of the valve chamber (2), characterized in that: A sealing ring (5) is fixedly connected to the inner wall of the guide port (4), and a movable ring (6) is slidably connected in the cavity of the guide port (4). Two adjustment pins (7) are fixedly connected to one side of the movable ring (6). Slots (8) slidably connected to the adjustment pins (7) are provided on both sides of the flat gate (3). An adjustment groove (9) in contact with the top of the adjustment pin (7) is provided on the top wall inside the slot (8). The sealing ring (5) is located between the movable ring (6) and the flat gate (3).

2. A flat gate valve with a connection sealing structure according to claim 1, characterized in that: The movable ring (6) is located on one side of the flat gate (3) and is fixedly connected to an inclined plate (11). The inclined plate (11) is located on one side of the adjustment pin (7), and the inclined plate (11) is located above the adjustment pin (7). Two sliding grooves (12) that are slidably connected to the inclined plate (11) are provided on one side of the flat gate (3).

3. A flat gate valve with a connection sealing structure according to claim 1, characterized in that: A fixing ring (10) is fixedly connected to the inner wall of the guide port (4), a spring is installed in a fixing groove opened on one side of the fixing ring (10), the movable ring (6) is slidably connected in the cavity of the fixing groove, and the side of the movable ring (6) facing away from the sealing ring (5) is fixedly connected to one end of the spring.

4. A flat gate valve with a connection sealing structure according to claim 1, characterized in that: The adjusting pin (7) comprises a mounting plate, a connecting block and an adjusting block, wherein the connecting block is fixedly connected between the mounting plate and the adjusting block, and the mounting plate is mounted on one side of the movable ring (6). The top end of the adjusting block and one side of the movable ring (6) is an inclined surface.

5. A flat gate valve with a connection sealing structure according to claim 2, characterized in that: The side of the inclined plate (11) facing away from the movable ring (6) is an inclined surface.

6. A flat gate valve with a connection sealing structure according to claim 1, characterized in that: A threaded rod (13) is rotatably connected to the top of the valve chamber (2), a convex block (14) is fixedly connected to the bottom end of the threaded rod (13), and a convex groove (15) plug-connected to the convex block (14) is provided on the upper part of the flat gate (3).

7. A flat gate valve with a connection sealing structure according to claim 1, characterized in that: A sealing plate (16) is fixedly connected to the bottom of the flat gate (3), and the sealing plate (16) is in contact with the bottom wall inside the valve chamber (2).

8. The flat gate valve with a connection sealing structure according to claim 1, characterized in that: Both ends of the valve body (1) are fixedly connected with flanges (17), and the flanges (17) are located at the notch of the guide port (4) away from the valve chamber (2).

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