CN216143235U

CN216143235U - Drain pump delivery port structure of clapping a door

Info

Publication number: CN216143235U
Application number: CN202121939784.6U
Authority: CN
Inventors: 赖华煌; 陈治鹏; 潘金权
Original assignee: Huanan Pump Industry Co ltd
Current assignee: Huanan Pump Industry Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-03-29
Anticipated expiration: 2031-08-18

Abstract

A water outlet flap valve structure of a drainage pump comprises a flap valve body and a flap valve cover, wherein the flap valve body is connected with the flap valve cover through a hinge mechanism, the hinge mechanism comprises a crank-shaped support arm and a hinge support, the crank-shaped support arm is connected to one side of the flap valve cover, the hinge support is fixedly connected to one side of the flap valve body, the hinge support is hinged with the crank-shaped support arm, two sides of the hinge support are provided with elastic limit blocks, the elastic limit blocks are used for elastically limiting the crank-shaped support arm, the maximum opening angle between the flap valve body and the flap valve cover is smaller than 90 degrees, when the drainage pump works, the flap valve cover is opened under the pressure action of a drainage pipe, the maximum deflection angle of the crank-shaped support arm is limited by the elastic limit blocks, the maximum opening angle between the flap valve body and the flap valve cover is smaller than 90 degrees, the flap valve cover is closed, when the drainage pump stops, the pressure outside the drainage pipe is larger than the pressure inside the drainage pipe, the elastic limiting block elastically resets to push the crank-shaped support arm to turn over, so that the flap valve cover is closed to avoid water from flowing back along the pipeline.

Description

Drain pump delivery port structure of clapping a door

Technical Field

The utility model belongs to the field of drainage pumps, and particularly relates to a flap valve structure of a drainage pump water outlet.

Background

The flap valve is a check valve with a hinge for preventing the water pump from reversing due to water backflow when the pump station is stopped, is usually arranged at the tail end of the drainage pipeline, and automatically closes when the water level is higher than the opening of the drainage pipeline and the pressure outside the pipeline is higher than the pressure inside the pipeline so as to prevent water from flowing back into the drainage pipeline. At present, the flap valve is almost in a mode of using a rear hinge mechanism in the use process of the water conservancy industry, and the flap valve cannot be effectively closed due to the fact that the flap valve is easy to form convolution after being opened by water power due to water pump impact.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a flap valve structure for a water outlet of a drainage pump.

In order to achieve the purpose, the utility model adopts the following technical measures:

a water outlet flap valve structure of a drainage pump comprises a flap valve body and a flap valve cover, wherein the flap valve body is connected with the flap valve cover through a hinge mechanism, the hinge mechanism comprises crank-shaped support arms and hinge supports, at least two groups of crank-shaped support arms are arranged and connected to one side of the flap valve cover in parallel, the hinge supports are fixedly connected to one side of the flap valve body and hinged to the crank-shaped support arms, elastic limit blocks are arranged on two sides of each hinge support and used for limiting the crank-shaped support arms in an elastic mode, and the maximum opening angle between the flap valve body and the flap valve cover is smaller than 90 degrees.

Preferably, the handle-shaped support arm includes articulated section and sets up respectively the linkage segment and the spacing section at articulated section both ends, articulated section through the pivot with the hinge support is articulated, spacing section be used for with the cooperation of elastic limiting block, the both sides face of linkage segment all is connected with the triangle fin, the linkage segment with the equal fixed connection in end of triangle fin claps a door closure.

Preferably, the crank-shaped support arm and the back side of the hinge support are provided with locking screws.

Preferably, the elastic limiting block is a metal elastic sheet with the thickness ranging from 3mm to 15mm, and the bottom of the elastic limiting block is welded with the flap valve body.

Preferably, the elastic limiting block comprises a metal limiting block welded to one side of the flap body, a through hole is formed in the metal limiting block, a pin is inserted into the through hole, a spring is sleeved at the front end of the pin, and the tail end of the pin is connected with the limiting block.

Preferably, the side face, close to the crank-shaped support arm, of the hinge support is provided with an arc-shaped limiting groove, one side of the crank-shaped support arm is provided with a convex point, and the convex point is used for being in sliding fit with the arc-shaped limiting groove.

Preferably, the top of the flap body is provided with a connecting flange, a first magnet ring is arranged on a ring opening of the connecting flange, a second magnet ring is arranged on the inner side of the flap cover, and the flap body is magnetically attracted with the flap cover.

Preferably, the outer surface of the first magnet ring and/or the second magnet ring is/are covered with a sealing rubber layer.

Preferably, the top of the flap body inclines towards the flap cover, and the outer side wall of the flap body is provided with a vertical reinforcing rib in a surrounding manner.

Has the advantages that:

1. compared with the prior art, the drain pump delivery port of this application claps door structure's simple structure, when drain pump during operation, clap the door closure and open under drain pipe pressure, and utilize the elastic limiting block to inject the biggest angle of deflection of crank shape support arm, make clap the door body and clap the door closure between the biggest opening angle and be less than 90 degrees, be favorable to clapping closing of door closure, when the drain pump shuts down, the pressure outside the drain pipe is greater than the drain pipe internal pressure, elastic limiting block elasticity resets, promote the upset of crank shape support arm, make clap the door closure, avoid water to flow backward along the pipeline, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability.

Drawings

FIG. 1 is a schematic structural diagram of a flap valve structure of a drain pump outlet according to a first embodiment of the present invention;

FIG. 2 is a side view of a first embodiment of a flap valve structure of a drain pump outlet according to the present invention;

FIG. 3 is a side view of a flap valve structure of a drain pump outlet according to a second embodiment of the present invention;

FIG. 4 is a structural diagram of a crank-shaped arm of a second embodiment of a flap valve structure of a drain pump outlet according to the present invention;

FIG. 5 is a structural diagram of an elastic limiting block of a second embodiment of a flap valve structure of a drain pump outlet according to the present invention;

fig. 6 is a schematic structural view of a third embodiment of a flap valve structure at a water outlet of a drain pump according to the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1-2, the present application discloses a drain pump water outlet flap structure, which includes a flap body 1 and a flap cover 2, wherein the top of the flap body 1 inclines towards the flap cover 2, the outer side wall of the flap body 1 is provided with vertical reinforcing ribs 13 in a surrounding manner, the flap body 1 is connected with the flap cover 2 through a hinge mechanism, the hinge mechanism includes a crank-shaped support arm 31 and a hinge support 32, the crank-shaped support arm 31 is provided with two sets, which are connected in parallel with one side of the flap cover 2, the hinge support 32 is fixedly connected with one side of the flap body 1, the hinge support 32 is hinged with the crank-shaped support arm 31, the two sides of the hinge support 32 are provided with elastic limit blocks 4, when the flap cover 2 is overturned to the maximum opening angle, one end of the crank-shaped support arm 31 is located on one side of the elastic limit block 4, the elastic limit blocks 4 are used for elastically limiting the crank-shaped support arm 31, the maximum opening angle between the flap door body 1 and the flap door cover 2 is smaller than 90 degrees, and the problem that the flap door cover 2 cannot be automatically closed due to the fact that the opening angle of the traditional flap door cover is too large can be solved.

In detail, handle shape support arm 31 includes articulated section 311 and sets up respectively the linkage segment 312 and the spacing section 313 at articulated section 311 both ends, articulated section 311, linkage segment 312 and spacing section 313 integrated into one piece, articulated section 311 through the pivot with hinge support 32 is articulated, spacing section 313 be used for with elasticity stopper 4 cooperates, the both sides face of linkage segment 312 all is connected with triangle fin 314, triangle fin 314 is used for the reinforcing clap door closure 2 with the stability of being connected between the handle shape support arm 31, linkage segment 312 with the equal fixed welding in end of triangle fin 314 clap door closure 2.

Elastic limiting block 4 adopts thickness to be 6 mm's stainless steel shell fragment, elastic limiting block 4's bottom with clap the welding of the door body 1, work as clap door closure 2 and open, spacing section 313 can rotate to be contradicted elastic limiting block 4 one side for elastic limiting block 4's upper end elastic deformation, to reverse effort is applyed to spacing section 313, makes spacing section 313 can't further rotate, thereby prescribes a limit to clap door closure 2's opening angle, when the drain pipe external pressure is greater than intraductal pressure, elastic limiting block 4 elasticity resets, promotes spacing section 313 is rotatory to be reset, is favorable to clap door closure 2 and realize self-closing.

In addition, locking screw 5 is all installed to the dorsal part of crank shape support arm 31, hinge support 32, through screwing locking screw 5 can be so that crank shape support arm 31, hinge support 32 with the pivot is locked, makes the unable upset of flap door 2 is favorable to the maintenance inspection.

Example two:

as shown in fig. 3 to 5, the difference between the flap valve structure of the drain pump outlet of the present embodiment and the first embodiment is: the elastic limiting blocks 4 are different in structure.

In this embodiment, the elastic limiting block 4 includes a metal limiting block 41 welded on one side of the flap body 1, a through hole is formed in the metal limiting block 41, a pin 42 is inserted into the through hole, a spring 43 is sleeved at the front end of the pin 42, and the end of the pin is connected with a limiting block 44. The limiting block 44 is preferably a nut, and the limiting block 44 is in threaded connection with the pin 42, so that the installation and the disassembly are facilitated. Crank shape support arm 31 rotates and makes spacing section 313 contradict in pin 42 one side can promote pin 42 toward keeping away from crank shape support arm 31 side removes to the extrusion spring 43, when the outer pressure of drain pipe is greater than intraductal pressure, spring 43 elasticity resets, promotes pin 42 so that spacing section 313 rotatory resets, is favorable to clap door closure 2 and realize self-closing.

In more detail, in order to reduce the impact force of the limiting section 313 of the crank-shaped support arm 31 on the elastic limiting block 4, an arc-shaped limiting groove 321 is formed in the side surface, close to the crank-shaped support arm 31, of the hinge support 32, a protruding point 315 is formed in one side of the crank-shaped support arm 31, the protruding point 315 is used for being in sliding fit with the arc-shaped limiting groove 321, when the protruding point 315 slides to the tail end of the arc-shaped limiting groove 321, the opening angle of the flap cover 2 is the largest, and the largest opening angle between the flap body 1 and the flap cover 2 can be ensured to be smaller than 90 degrees.

Example three:

as shown in fig. 6, the difference between the structure of the flap valve at the outlet of the drain pump in this embodiment and the first embodiment is: the sealing mode between the flap body 1 and the flap cover 2 is different.

In this embodiment, the top of the flap body 1 is a connecting flange 11, a ring opening of the connecting flange 11 is surrounded by a first magnet ring 12, the inner side of the flap cover 2 is provided with a second magnet ring 21, and the flap body 1 is magnetically attracted to the flap cover 2. When the flap cover 2 is closed towards the flap body 1, the second magnet ring 21 and the first magnet ring 12 can generate magnetic attraction force, so that the automatic closing capability of the flap body 1 and the flap cover 2 can be enhanced, and the problem that the flap cover 2 cannot be automatically closed is further solved.

In addition, in order to improve the closing sealing performance of the flap door body 1 and the flap door cover 2, the outer surfaces of the first magnet ring 12 and the second magnet ring 21 are covered with sealing rubber layers, and the sealing rubber layers can also generate certain buffering capacity to reduce the impact force on the second magnet ring 21 and the first magnet ring 12 when the flap door cover 2 is closed.

To sum up, the drain pump delivery port of this application claps a simple structure of door structure, when drain pump during operation, clap the door closure and open under drain pipe pressure, and utilize the elastic limiting block to inject the biggest angle of deflection of crank shape support arm, make clap the door body and clap the biggest opening angle between the door closure and be less than 90 degrees, be favorable to clapping closing of door closure, when the drain pump shuts down, the pressure outside the drain pipe is greater than the drain pipe internal pressure, elastic limiting block elastic reset, promote the upset of crank shape support arm, make to clap the door closure, avoid water to flow backward along the pipeline, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability.

The foregoing is a more detailed description of the utility model, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the utility model be limited to the specific embodiments disclosed herein. To those skilled in the art to which the utility model belongs, a plurality of simple deductions or replacements can be made without departing from the concept of the utility model, and all the deductions or replacements should be regarded as belonging to the protection scope of the utility model.

Claims

1. The utility model provides a drain pump delivery port structure of clapping a door, including clapping a body (1) and clapping a door lid (2), clap a body (1) with clap a door lid (2) and pass through the hinge mechanism and connect, its characterized in that, the hinge mechanism includes crank shape support arm (31) and hinge support (32), crank shape support arm (31) are equipped with two sets ofly at least, parallel connection in clap a door lid (2) one side, hinge support (32) fixed connection in clap a body (1) one side, hinge support (32) with crank shape support arm (31) are articulated, the both sides of hinge support (32) are equipped with elasticity stopper (4), elasticity stopper (4) are used for the elasticity spacing crank shape support arm (31), the biggest opening angle between clapping a body (1) and clapping a door lid (2) is less than 90 degrees.

2. A drain pump water outlet flap valve structure according to claim 1, wherein the handle-shaped arm (31) comprises a hinge section (311), and a connection section (312) and a position-limiting section (313) respectively disposed at two ends of the hinge section (311), the hinge section (311) is hinged to the hinge support (32) through a rotating shaft, the position-limiting section (313) is used for cooperating with the elastic position-limiting block (4), two side surfaces of the connection section (312) are both connected with triangular flaps (314), and the connection section (312) and the ends of the triangular flaps (314) are both fixedly connected with the flap valve cover (2).

3. A drain pump outlet flap valve structure according to claim 2, characterized in that the back side of the crank-shaped arm (31) and the hinge support (32) are provided with locking screws (5).

4. The flap valve structure of the drainage pump water outlet according to claim 1, wherein the elastic limiting block (4) is a metal elastic sheet with a thickness of 3mm to 15mm, and the bottom of the elastic limiting block (4) is welded with the flap valve body (1).

5. The flap valve structure of the drainage pump water outlet according to claim 1, wherein the elastic limiting block (4) comprises a metal limiting block (41) welded on one side of the flap valve body (1), a through hole is formed in the metal limiting block (41), a pin (42) is inserted into the through hole, a spring (43) is sleeved at the front end of the pin (42), and a limiting block (44) is connected to the end of the pin.

6. A drain pump water outlet flap valve structure according to claim 1, wherein the hinge support (32) is provided with an arc-shaped limiting groove (321) on the side near the crank-shaped arm (31), and a convex point (315) is provided on one side of the crank-shaped arm (31), and the convex point (315) is used for sliding fit with the arc-shaped limiting groove (321).

7. The drain pump water outlet flap valve structure according to claim 1, wherein the top of the flap valve body (1) is a connecting flange (11), a first magnetic ring (12) is arranged around a ring opening of the connecting flange (11), a second magnetic ring (21) is arranged on the inner side of the flap valve cover (2), and the flap valve body (1) is magnetically attracted to the flap valve cover (2).

8. A drain pump delivery port flap valve structure according to claim 7, characterized in that the outer surface of the first magnetic ring (12) and/or the second magnetic ring (21) is covered with a sealing rubber layer.

9. The drain pump water outlet flap valve structure according to claim 1, wherein the top of the flap valve body (1) is inclined towards the flap valve cover (2), and the outer side wall of the flap valve body (1) is provided with a vertical reinforcing rib (13) in a surrounding manner.