Pipeline flap valve with high sealing performance

Abstract

The high-sealing-performance pipeline flap valve comprises a flap valve seat, a door plate and two connecting units, the flap valve seat comprises a fixing plate, a connecting ring and a flange, a sealing ring is arranged at the position of the flange, each connecting unit comprises an installation seat, an insertion plate and a rotating arm, and two adjusting units used for adjusting the horizontal positions of the two installation seats correspondingly are installed at the position of the fixing plate. According to the pipeline flap valve, the distance between the mounting seat and the inserting plate can be finely adjusted, so that the flange can be better sealed by the door plate, the flange can be better sealed by the door plate under the action of external water pressure, and the effect of a better check valve is achieved. The horizontal position of the mounting seat can be finely adjusted, so that the position of the door plate can be finely adjusted according to requirements, the door plate can be accurately in contact with the sealing ring on the flap valve seat when closed, tight sealing is formed, the sealing performance and stability of the flap valve are guaranteed, and later maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of pipeline flap doors, and more specifically to a pipeline flap door with high sealing performance. Background Art

[0002] The pipeline flap valve is a check valve installed at the tail end of the drainage pipe, which has the function of preventing external water from flowing back. When the water exceeds the water level, the flap valve is closed to prevent water from flowing back. When the water level is lower than the water in the pipe, the flap valve opens to drain water out. It has a wide range of uses and is often used at the pipe outlet of various projects such as urban drainage, river management, and sewage treatment to play the role of overflow and check.

[0003] In actual use, the existing flap door has poor sealing between the door panel and the flange. During the opening and closing process of the flap door, the door panel and the flange will also move relative to each other, resulting in the door panel and the flange not being able to be tightly sealed. In particular, after being used for a period of time, the rotating shaft is not in an ideal state, and the rotating shaft will be worn, thereby affecting the stability of the rotating shaft. There is a poor sealing between the door panel and the flange, and it is not easy to maintain and adjust. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provide a pipeline flap door with high sealing performance.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline flap door, comprising a flap door seat, a door panel and two connection units for locking the flap door seat and the door panel, the flap door seat comprising a fixed plate, a connection ring connected to the fixed plate and a flange connected to the connection ring, the flange having a sealing ring, the connection unit comprising a mounting seat, a plug plate mounted on the mounting seat and a rotating arm fixedly connected to the door panel and hinged to the plug plate, two adjustment units for adjusting the horizontal positions of the two mounting seats are installed on the fixed plate, the adjustment unit comprises an end block fixed to the fixed plate and a first screw rod mounted on the end block, two guide rods are connected between the two end blocks, the mounting seat has two guide holes cooperating with the guide rods, the end block has a first screw rod cooperating with the first screw rod The locking plate has a first locking bolt which is adapted to lock the locking plate, the second locking plate having a first locking mechanism which is adapted to lock the locking plate and a second locking mechanism which is adapted to lock the locking plate.

[0006] Furthermore, the plug board has a plurality of limit rails, and the mounting seat has a plurality of limit grooves matched with the limit rails.

[0007] This ensures a stable connection and precise alignment between the insert plate and the mount, thereby enhancing the overall seal and stability.

[0008] Furthermore, a limiting rod is installed in the slot, and the plug plate has a strip-shaped through slot passed by the limiting rod.

[0009] This prevents the plug board from falling.

[0010] Furthermore, the top and bottom of the mounting seat are both connected with protrusions, and the first locking bolts are installed on the protrusions.

[0011] This makes it easier to install the first locking bolt.

[0012] Furthermore, the door panel is connected with an ear plate, and the ear plate has a through hole portion.

[0013] Thus, the through hole facilitates operations such as manual opening of the door panel.

[0014] Furthermore, a reinforcing rib is connected between the rotating arm and the door panel.

[0015] Thereby the connection between the rotating arm and the door panel is firm.

[0016] Furthermore, the plurality of connection blocks are distributed in a ring shape with equal intervals.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The pipeline flap door of the present application can fine-tune the distance between the mounting seat and the plug plate, thereby ensuring that the door plate is better closed to the flange, so that the door plate can better close the flange under the action of the external water pressure, thereby achieving a better check valve effect.

[0019] 2. The pipeline flap door of the present application can achieve fine-tuning of the horizontal position of the mounting seat, so that the position of the door panel can be fine-tuned as needed, so that the door panel can accurately contact the sealing ring on the flap door seat when closed to form a tight seal, thereby ensuring the sealing performance and stability of the flap door and facilitating subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the separation of the flap door components;

[0021] Figure 2 This is an enlarged view of area A;

[0022] Figure 3 This is an enlarged view of area B;

[0023] Figure 4 This is a schematic diagram of the separation of the plug board and the mounting base;

[0024] Figure 5 It is a schematic diagram of the matching between the plug board and the mounting seat;

[0025] Figure 6 This is a schematic diagram of the door panel closed.

[0026] Explanation of the reference numerals: 1.1 fixing plate; 1.2 connecting ring; 1.3 flange; 1.4 sealing ring; 2 door panel; 2.1 ear plate; 3 mounting seat; 3.1 fixing circular plate; 3.2 connecting block; 3.3 limiting circular ring; 3.4 first locking bolt; 3.5 slot; 3.6 second threaded hole; 3.7 second locking bolt; 3.8 limiting slot; 3.9 limiting rod; 4 plug plate; 4.1 side convex plate; 4.2 through hole; 4.3 limiting rail; 4.4 strip through groove; 5 rotating arm; 5.1 reinforcing rib; 6 end block; 6.1 guide rod; 6.2 first threaded hole; 7 first screw; 7.1 limiting circular plate; 8 second screw; 8.1 first limiting plate; 8.2 second limiting plate. DETAILED DESCRIPTION

[0027] 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.

[0028] The utility model provides Figure 1-6 A high-sealing pipeline flap door shown in the figure comprises a flap door seat, a door panel 2 and two connection units for locking the flap door seat and the door panel 2, the flap door seat comprises a fixed plate 1.1, a connection ring 1.2 connected to the fixed plate 1.1 and a flange 1.3 connected to the connection ring 1.2, the flange 1.3 has a sealing ring 1.4, the connection unit comprises a mounting seat 3, a plug plate 4 mounted on the mounting seat 3 and a rotating arm 5 fixedly connected to the door panel 2 and hinged to the plug plate 4, two adjustment units for adjusting the horizontal positions of the two mounting seats 3 are installed on the fixed plate 1.1, the adjustment unit comprises an end block 6 fixed to the fixed plate 1.1 and a first screw rod 7 mounted on the end block 6, two guide rods 6.1 are connected between the two end blocks 6, the mounting seat 3 has two guide holes matching with the guide rods 6.1, the end block 6 has a first threaded hole 6.2 matching with the first screw rod 7, the end of the first screw rod 7 has a limiting circular plate 7.1, The mounting seat 3 is connected to a fixed circular plate 3.1, and the fixed circular plate 3.1 is connected to a limiting circular ring 3.3 through a plurality of connecting blocks 3.2. A receiving groove that cooperates with the limiting circular plate 7.1 is formed between the limiting circular ring 3.3 and the fixed circular plate 3.1. The mounting seat 3 has a first locking bolt 3.4 that can be pressed against the fixed plate 1.1. The mounting seat 3 has a slot 3.5 that cooperates with the plug plate 4. The plug plate 4 is connected to a side convex plate 4.1. The side convex plate 4.1 A second screw rod 8 for adjusting the relative position of the plug plate 4 and the mounting seat 3 is installed, the side convex plate 4.1 has a through hole 4.2 that cooperates with the second screw rod 8, the mounting seat 3 has a second threaded hole 3.6 that cooperates with the second screw rod 8, the second screw 8 is connected with a first limit plate 8.1 and a second limit plate 8.2, the first limit plate 8.1 and the second limit plate 8.2 are respectively located on both sides of the side convex plate 4.1, and the mounting seat 3 has a second locking bolt 3.7 that can tighten the plug plate 4.

[0029] The plug plate 4 has a plurality of limit rails 4.3, and the mounting seat 3 has a plurality of limit slots 3.8 that cooperate with the limit rails 4.3; a limit rod 3.9 is installed in the slot 3.5, and the plug plate 4 has a strip-shaped through slot 4.4 passed by the limit rod 3.9; the top and bottom of the mounting seat 3 are connected with protrusions, and the first locking bolt 3.4 is installed at the protrusion; the door panel 2 is connected with an ear plate 2.1, and the ear plate has a through hole; a reinforcing rib 5.1 is connected between the rotating arm 5 and the door panel 2; and a plurality of connecting blocks 3.2 are distributed in a ring-shaped manner with equal intervals.

[0030] Working principle: The pipeline flap door of the present application can fine-tune the distance between the mounting seat and the plug plate, so as to ensure that the door plate is better closed to the flange, so that the door plate can better close the flange under the action of the external water pressure, thereby achieving a better check valve effect. The horizontal position of the mounting seat can be fine-tuned, so that the position of the door plate can be fine-tuned according to needs, so that the door plate can accurately contact the sealing ring on the flap door seat when closed, forming a tight seal, thereby ensuring the sealing performance and stability of the flap door, and facilitating subsequent maintenance.

[0031] During specific use, first gently rotate the first screw to fine-tune the horizontal position of the mounting seat so that the door panel is aligned with the sealing ring at the door flap seat, then lock the position of the mounting seat with the first locking bolt, and then use the second screw to fine-tune the distance between the plug plate and the mounting seat through the cooperation of the limit rail and the limit groove, so that the door panel presses the sealing ring, thereby achieving a good sealing effect and ensuring that the door panel can be opened and closed smoothly, and then lock the position of the plug plate with the second locking bolt.

[0032] Although the present invention has been illustrated and described with respect to preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A high-sealing pipeline flap door, characterized in that: It includes a door flap seat, a door panel and two connection units for locking the door flap seat and the door panel, the door flap seat includes a fixed plate, a connection ring connected to the fixed plate and a flange connected to the connection ring, the flange is provided with a sealing ring, the connection unit includes a mounting seat, a plug plate installed on the mounting seat and a rotating arm fixedly connected to the door panel and hinged to the plug plate, two adjustment units for adjusting the horizontal positions of the two mounting seats are installed on the fixed plate, the adjustment unit includes an end block fixed to the fixed plate and a first screw rod installed on the end block, two guide rods are connected between the two end blocks, the mounting seat has two guide holes matched with the guide rods, the end block has a first threaded hole matched with the first screw rod, and the end of the first screw rod has a limit The circular plate, the mounting seat is connected to the fixed circular plate, and the fixed circular plate is connected to a limited position circular ring through multiple connecting blocks, and a receiving groove that cooperates with the limited circular plate is formed between the limited circular ring and the fixed circular plate, the mounting seat has a first locking bolt that can be pressed against the fixed plate, the mounting seat has a slot that cooperates with the plug plate, the plug plate is connected to a side convex plate, the side convex plate is installed with a second screw for adjusting the relative position of the plug plate and the mounting seat, the side convex plate has a through hole that cooperates with the second screw, the mounting seat has a second threaded hole that cooperates with the second screw, the second screw is connected to the first limiting plate and the second limiting plate, the first limiting plate and the second limiting plate are respectively located on both sides of the side convex plate, and the mounting seat has a second locking bolt that can be pressed against the plug plate.

2. The high-seal pipeline flap door according to claim 1 is characterized in that: The plug board has a plurality of limiting rails, and the mounting seat has a plurality of limiting grooves matched with the limiting rails.

3. The high-seal pipeline flap door according to claim 1, characterized in that: A limiting rod is installed in the slot, and the plug plate has a strip-shaped through slot passed through by the limiting rod.

4. The high-seal pipeline flap door according to claim 1, characterized in that: The top and bottom of the mounting seat are both connected with protrusions, and the first locking bolts are installed at the protrusions.

5. The high-seal pipeline flap door according to claim 1, characterized in that: The door panel is connected with an ear panel, and the ear panel has a through hole.

6. The high-seal pipeline flap door according to claim 1, characterized in that: A reinforcing rib is connected between the rotating arm and the door panel.

7. The high-seal pipeline flap door according to claim 1, characterized in that: The plurality of connection blocks are distributed in a ring shape with equal intervals.

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