CN220956970U

CN220956970U - Prevent flowing backward flap valve

Info

Publication number: CN220956970U
Application number: CN202322586651.0U
Authority: CN
Inventors: 刘培荣; 陈维忠; 许万明
Original assignee: Tianchang Zhongtian Industry Co ltd
Current assignee: Tianchang Zhongtian Industry Co ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2024-05-14
Anticipated expiration: 2033-09-22

Abstract

The utility model discloses an anti-backflow flap valve, which comprises a water outlet pipe, wherein a flap valve plate is rotatably arranged on one side of the water outlet pipe, a supporting frame is fixedly arranged at the top of the water outlet pipe, a fixed box is fixedly connected to the top of the supporting frame, a motor is fixedly arranged in the fixed box, and a main gear is fixedly connected to the bottom end of a rotating shaft of the motor; one side of the main gear is meshed with a connecting gear, one side of the connecting gear is meshed with a linkage gear, and the inner wall of the linkage gear is fixedly connected with a thread cylinder. This prevent flowing back flap valve, after the drainage, the motor drives the gear train rotation to rotate screw thread section of thick bamboo at fixed box inside, make the threaded rod perpendicular downwardly moving under the spacing of gag lever post, and then remove the extrusion at the avris of flap valve board with the cardboard, seal flap valve board and outlet pipe extrusion, when making the outside water pressure of outlet pipe too big, outside rivers can't get into inside the outlet pipe from the gap, thereby increase the prevent flowing back effect of flap valve.

Description

Prevent flowing backward flap valve

Technical Field

The utility model relates to the technical field of flap valves, in particular to an anti-backflow flap valve.

Background

The flap valve is arranged at the tail end of the drainage pipeline and is used as a one-way valve at the outlet of the drainage pipeline at the side of the river, when the tide level of the river is higher than the outlet pipe orifice and the pressure is higher than the pressure in the pipe, the flap valve panel is automatically closed so as to prevent the tide water of the river from flowing backwards into the drainage pipeline, but the existing flap valve has some problems when in use.

When carrying out the drainage, the inside rivers of drain pipe will clap the door and extrude to open clapping the door, and clapping the outside water pressure of door and can closing clapping the door extrusion after the drainage is finished, thereby avoid river water to flow backward, but clapping when the outside water pressure of door is too big, rivers can get into inside the drain pipe from clapping the gap of door, and then influence the result of use of clapping the door, and there is the excessive risk of flowing backward, consequently need propose a prevent flowing backward clapping the door.

Disclosure of utility model

The utility model aims to provide an anti-backflow flap valve, which solves the problem that water flow can flow backwards from a flap valve gap when the external water pressure is too high in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the anti-backflow flap valve comprises a water outlet pipe, a flap valve plate is rotatably arranged on one side of the water outlet pipe, a supporting frame is fixedly arranged at the top of the water outlet pipe, a fixing box is fixedly connected to the top of the supporting frame, a motor is fixedly arranged in the fixing box, and a main gear is fixedly connected to the bottom end of a rotating shaft of the motor;

One side meshing of main gear has connecting gear, one side meshing of connecting gear has the linkage gear, and the inner wall fixedly connected with screw thread section of thick bamboo of linkage gear, the internal thread of screw thread section of thick bamboo installs the threaded rod, and the bottom fixed mounting of threaded rod has the cardboard.

Preferably, the top fixedly connected with sealing washer of fixed box, and the limit side symmetry welding of fixed box has the installation otic placode, the top extrusion of sealing washer is provided with sealed lid.

Preferably, the side of the sealing cover is also welded with a mounting lug plate, the mounting lug plates are fixedly mounted through bolts, and the sealing cover is fixedly mounted at the top of the fixing box through the mounting lug plate and the bolts.

Preferably, the outer wall fixedly connected with mounting panel of motor, and mounting panel fixed mounting is at the inner wall of fixed box, the main gear rotates the interior bottom wall of installing at fixed box, and connecting gear and linkage gear all rotate the inside of installing at fixed box.

Preferably, the screw thread section of thick bamboo is rotated and is installed in the inside of fixed box, and the threaded rod removes the inside that sets up at fixed box, cardboard removal block is in the avris of clapping the door plant, and threaded rod and cardboard symmetry set up in the both sides of clapping the door plant.

Preferably, the bottom outer wall fixedly connected with fixed plate of threaded rod, and one side top fixed mounting of fixed plate has the gag lever post, the gag lever post removes the inside that sets up at fixed box, the bottom fixed mounting of fixed box has a drainage section of thick bamboo.

Preferably, the inner wall of the water filtering cylinder is fixedly connected with a rubber ring, the two water filtering cylinders are respectively arranged outside the threaded rod and outside the limiting rod, and the rubber ring is attached to the threaded rod and the limiting rod.

Compared with the prior art, the utility model has the beneficial effects that: the anti-backflow flap valve;

1. After the water discharge is finished, the motor drives the gear set to rotate, so that the threaded cylinder rotates in the fixed box, the threaded rod vertically moves downwards under the limit of the limit rod, the clamping plate is further moved and extruded on the side of the flap plate, the flap plate and the water outlet pipe are extruded and sealed, and when the water pressure outside the water outlet pipe is overlarge, external water cannot enter the water outlet pipe from the gap, so that the anti-backflow effect of the flap plate is improved;

2. Through dismantling the inside bolt of installation otic placode, can dismantle sealed lid, then conveniently maintain the operation to the inner structure of fixed box, simultaneously when fixed sealed lid of installation, make it deformation through sealed lid extrusion sealing washer to conveniently seal sealed top fixed box with sealed lid, and then when clapping the door and use, increase the water-proof effects of fixed box, avoid clapping the inner structure of door and appear soaking damage the condition, and then increase the life who prevents clapping the door against the current.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view showing the internal structure of the fixing case of the present utility model;

FIG. 3 is a schematic view of a connection structure of a connecting gear and a linkage gear according to the present utility model;

fig. 4 is a schematic view of the disassembled structure of the threaded rod and the threaded cylinder of the present utility model.

In the figure: 1. a water outlet pipe; 2. a flap plate; 3. a support frame; 4. a fixed box; 5. a seal ring; 6. installing an ear plate; 7. sealing cover; 8. a motor; 9. a main gear; 10. a connecting gear; 11. a linkage gear; 12. a thread cylinder; 13. a threaded rod; 14. a clamping plate; 15. a fixing plate; 16. a limit rod; 17. a water filtering cylinder.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example one:

Referring to fig. 1, 3 and 4, the present utility model provides a technical solution: the anti-backflow flap valve comprises a water outlet pipe 1, a flap valve plate 2 is rotatably arranged on one side of the water outlet pipe 1, a support frame 3 is fixedly arranged at the top of the water outlet pipe 1, a fixed box 4 is fixedly connected to the top of the support frame 3, a motor 8 is fixedly arranged in the fixed box 4, a main gear 9 is fixedly connected to the bottom end of a rotating shaft of the motor 8, and a connecting gear 10 is meshed on one side of the main gear 9;

One side of the connecting gear 10 is meshed with a linkage gear 11, the inner wall of the linkage gear 11 is fixedly connected with a threaded cylinder 12, a threaded rod 13 is arranged in the threaded cylinder 12 in a threaded manner, a clamping plate 14 is fixedly arranged at the bottom end of the threaded rod 13, the threaded cylinder 12 is rotatably arranged in the fixed box 4, and the threaded rod 13 is movably arranged in the fixed box 4;

The clamping plate 14 is movably clamped at the side of the shooting plate 2, the threaded rod 13 and the clamping plate 14 are symmetrically arranged at the two sides of the shooting plate 2, the outer wall of the bottom end of the threaded rod 13 is fixedly connected with the fixing plate 15, the top of one side of the fixing plate 15 is fixedly provided with the limiting rod 16, and the limiting rod 16 is movably arranged in the fixing box 4;

After the water discharge is finished, the motor 8 drives the gear set to rotate, so that the threaded cylinder 12 rotates in the fixed box 4, the threaded rod 13 vertically moves downwards under the limit of the limit rod 16, the clamping plate 14 is further moved and extruded on the side of the flap plate 2, the flap plate 2 and the water outlet pipe 1 are extruded and sealed, and when the external water pressure of the water outlet pipe 1 is overlarge, external water cannot enter the water outlet pipe 1 from a gap, so that the backflow prevention effect of the flap plate is improved;

The internal threads of the thread barrels 12 on two sides are opposite threads, so that when the thread barrels 12 on two sides rotate oppositely, the threaded rods 13 on two sides can be driven to ascend and descend simultaneously, the clamping plate 14 is convenient to use, the clamping plates 14 are symmetrically arranged, the extrusion limit of the flap plate 2 is convenient to increase, the sealing of the flap plate 2 and the water outlet pipe 1 is improved, and a sealing ring is arranged between the water outlet pipe 1 and the flap plate 2, so that the tighter the extrusion is, the better the sealing performance is;

example two:

On the basis of the first example, in order to facilitate overhauling the internal structure of the flap valve, referring to fig. 1 and 2, a sealing ring 5 is fixedly connected to the top of the fixed box 4, mounting lugs 6 are symmetrically welded on the side of the fixed box 4, a sealing cover 7 is arranged at the top of the sealing ring 5 in an extrusion mode, the mounting lugs 6 are welded on the side of the sealing cover 7, the mounting lugs 6 are fixedly mounted through bolts, the sealing cover 7 is fixedly mounted on the top of the fixed box 4 through the mounting lugs 6 and the bolts, a mounting plate is fixedly connected to the outer wall of the motor 8, and the mounting plate is fixedly mounted on the inner wall of the fixed box 4;

The main gear 9 is rotatably arranged on the inner bottom wall of the fixed box 4, the connecting gear 10 and the linkage gear 11 are rotatably arranged in the fixed box 4, the bottom of the fixed box 4 is fixedly provided with a water filtering cylinder 17, the inner wall of the water filtering cylinder 17 is fixedly connected with a rubber ring, the two water filtering cylinders 17 are respectively arranged on the outer part of the threaded rod 13 and the outer part of the limiting rod 16, and the rubber ring is attached to the threaded rod 13 and the limiting rod 16;

The sealing cover 7 can be detached through the bolts in the detachable mounting lug plate 6, then the maintenance operation is conveniently carried out on the internal structure of the fixed box 4, and meanwhile, when the sealing cover 7 is mounted and fixed, the sealing ring 5 is extruded by the sealing cover 7 to deform, so that the sealing cover 7 is conveniently sealed and fixed at the top of the fixed box 4, and then when the flap valve is used, the waterproof effect of the fixed box 4 is improved, the condition of soaking damage of the internal structure of the flap valve is avoided, and the service life of the anti-backflow flap valve is further prolonged;

The setting of gag lever post 16 is convenient carries out spacingly to threaded rod 13 to the convenience drives cardboard 14 with threaded rod 13 and carries out vertical movement and use, and the setting of water filter tube 17 is convenient with threaded rod 13 and gag lever post 16 before getting into fixed box 4 inside, scrapes the water of threaded rod 13 and gag lever post 16 outer wall, thereby avoids the inside ponding that appears of fixed box 4 to influence the use of motor 8.

Working principle: when the anti-backflow flap valve is used, when water in the water outlet pipe 1 is discharged outwards, the flap valve plate 2 is pushed outwards, water is discharged, after the water discharge is finished, the flap valve plate 2 is closed by gravity or external water pressure, then the motor 8 drives the main gear 9 to perform the present, so that the connecting gear 10 and the linkage gear 11 are subjected to the present, and then the thread cylinder 12 rotates in the fixed box 4;

Then the threaded rod 13 rotates in the threaded cylinder 12, so that the limiting rod 16 moves in the fixed box 4 to limit the threaded rod 13, then the threaded rod 13 moves vertically downwards, the clamping plate 14 is further moved and extruded on the side of the flap plate 2, after the two sides of the flap plate 2 are extruded and fixed through the clamping plate 14, the flap plate 2 is conveniently extruded and sealed on one side of the water outlet pipe 1, and therefore water flow cannot flow backwards into the water outlet pipe 1 when the external water pressure is high;

And when carrying out the inspection maintenance of fixed box 4 inner structure, dismantle the inside bolt of installation otic placode 6 to separate between the installation otic placode 6, then conveniently take off sealed lid 7 and overhaul the inner structure of fixed box 4, and overhaul the back of accomplishing, close sealed lid 7 and cover the top at the sealing washer 5 of fixed box 4, with installation otic placode 6 alignment, and through the bolt installation, and then conveniently extrude sealing washer 5 with sealed lid 7, make sealed lid 7 seal mounting at the top of fixed box 4, increase the water-proof effects of fixed box 4.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an prevent flowing against the back clapping gate, includes outlet pipe (1), its characterized in that: one side of the water outlet pipe (1) is rotatably provided with a flap valve plate (2), the top of the water outlet pipe (1) is fixedly provided with a support frame (3), the top of the support frame (3) is fixedly connected with a fixed box (4), the inside of the fixed box (4) is fixedly provided with a motor (8), and the bottom end of a rotating shaft of the motor (8) is fixedly connected with a main gear (9);

One side meshing of main gear (9) has connecting gear (10), one side meshing of connecting gear (10) has linkage gear (11), and the inner wall fixedly connected with screw thread section of thick bamboo (12) of linkage gear (11), threaded rod (13) are installed to the internal thread of screw thread section of thick bamboo (12), and the bottom fixed mounting of threaded rod (13) has cardboard (14).

2. The anti-backflow flap valve according to claim 1, wherein a sealing ring (5) is fixedly connected to the top of the fixed box (4), mounting lug plates (6) are symmetrically welded on the side of the fixed box (4), and a sealing cover (7) is arranged on the top of the sealing ring (5) in an extrusion mode.

3. An anti-reflux flap valve according to claim 2, characterized in that the side of the sealing cover (7) is welded with mounting lugs (6) as well, the mounting lugs (6) are fixedly mounted by bolts, and the sealing cover (7) is fixedly mounted on the top of the fixed box (4) by the mounting lugs (6) and the bolts.

4. The anti-backflow flap valve according to claim 1, wherein the outer wall of the motor (8) is fixedly connected with a mounting plate, the mounting plate is fixedly mounted on the inner wall of the fixed box (4), the main gear (9) is rotatably mounted on the inner bottom wall of the fixed box (4), and the connecting gear (10) and the linkage gear (11) are rotatably mounted in the fixed box (4).

5. An anti-reflux flap valve according to claim 1, characterized in that the screw barrel (12) is rotatably mounted in the fixed box (4), the threaded rod (13) is movably arranged in the fixed box (4), the clamping plate (14) is movably clamped at the side of the flap plate (2), and the threaded rod (13) and the clamping plate (14) are symmetrically arranged at two sides of the flap plate (2).

6. The anti-backflow flap valve according to claim 1, wherein the outer wall of the bottom end of the threaded rod (13) is fixedly connected with a fixing plate (15), a limit rod (16) is fixedly arranged at the top of one side of the fixing plate (15), the limit rod (16) is movably arranged in the fixing box (4), and a water filtering barrel (17) is fixedly arranged at the bottom of the fixing box (4).

7. The anti-backflow flap valve according to claim 6, wherein a rubber ring is fixedly connected to the inner wall of the water filtering cylinder (17), the two water filtering cylinders (17) are respectively arranged outside the threaded rod (13) and the limiting rod (16), and the rubber ring is attached to the threaded rod (13) and the limiting rod (16).