CN111963703A

CN111963703A - Drainage current-limiting adjusting device

Info

Publication number: CN111963703A
Application number: CN202010787560.1A
Authority: CN
Inventors: 胡宗山
Original assignee: Hefei Hanjun Environmental Protection Technology Development Co ltd
Current assignee: Hefei Hanjun Environmental Protection Technology Development Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2020-11-20

Abstract

The invention discloses a drainage current-limiting adjusting device, and relates to the technical field of drainage current limiting. The invention comprises a pipe body, a first flow limiting mechanism and a second flow limiting mechanism, wherein the second flow limiting mechanism is concentrically arranged in the pipe body; a circular through groove is concentrically arranged on the pipe body outside the second current limiting mechanism along the circumferential direction; the first flow restriction mechanism includes a sector plate and a first disk. According to the invention, through the arrangement of the first current limiting mechanism, the second current limiting mechanism, the driving bevel gear, the gear disc, the rotating handle, the single chip microcomputer, the flow velocity detection sensor and the display screen and the mutual cooperation among the components, the device is simple to operate, rich in adjustment mode, low in maintenance cost and high in adjustment precision in the use process.

Description

Drainage current-limiting adjusting device

Technical Field

The invention belongs to the technical field of drainage flow limitation, and particularly relates to a drainage flow limitation adjusting device which is mainly used for playing a flow limitation adjusting role in a water conveying process.

Background

In current social construction, no matter be hydraulic engineering construction or city water system distribution construction, all use current-limiting adjusting device to come to carry out the current-limiting regulation to the water transportation, the current-limiting regulation plays crucial effect in the distribution of water system and the protection of water pipe, at present, current-limiting adjusting device adopts the control valve manual work to adjust mostly, such adjustment mode troublesome poeration, single adjustment mode is after adjustment mechanism damages, just need change, the cost of current-limiting adjusting device maintenance has been increased, the life of current-limiting adjusting device has been reduced, furthermore, current-limiting adjusting device mostly is that the staff relies on the experience carries out the current-limiting regulation, the precision of regulation is lower.

The prior publication, CN 208563236U-a drainage current-limiting adjusting device, discloses a drainage pipe, which comprises a drainage pipe, a connecting flange is installed at one end of the drainage pipe, a device body is installed on the drainage pipe through the connecting flange, a guide groove is opened in the device body, an adjusting plate is arranged in the guide groove, a guide plate is installed at the top of the adjusting plate, a sealant is glued on the surface of the adjusting plate, a casing is welded at the top of the guide plate, an adjusting turntable is arranged at one side of the spoiler, one end of the adjusting turntable extends to the outside of the casing, the casing is welded at the top of the device body, the spoiler is installed in the casing, rotating rods are arranged at two ends of the spoiler, the rotating rods are fixed in the casing, the adjusting turntable is used for connecting the rotating rods of the spoiler, the opening and closing of the drainage pipe are realized through the adjusting turntable, buffering rivers, guarantee that rivers too big impact damages current-limiting adjusting device when the drainage, simple structure, the practicality is strong, though this technical means can play the effect that the current-limiting was adjusted to water, the mode of nevertheless adjusting still needs artifical manual regulation, and the troublesome poeration has increased staff's work load, has the inaccurate not enough of adjustment moreover.

Disclosure of Invention

The invention aims to provide a drainage current-limiting adjusting device, which can drive a second current-limiting mechanism to rotate under the action of forward and reverse rotation of a motor through the meshing arrangement between a gear ring and a gear disc on the second current-limiting mechanism, so that current-limiting adjustment can be realized by changing the size of a gap between a sector plate and a sector through groove, current-limiting adjustment can be realized by manually changing the size of the gap between the sector plate and the sector through groove through a rotating handle through the meshing arrangement between a driving conical gear and a driven conical gear, the flow-limiting adjustment can be realized by a worker through manually changing the size of the gap between the sector plate and the sector through groove through a rotating handle, the flow rate of water can be detected through the arrangement of a flow rate detection sensor, the worker can know the flow rate of water according to intuition through the arrangement of a display screen, more accurate adjustment of the worker is facilitated, and, Low adjusting precision and high maintenance cost.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a drainage current-limiting adjusting device, which comprises a pipe body, a first current-limiting mechanism and a second current-limiting mechanism, wherein the second current-limiting mechanism is concentrically arranged in the pipe body;

a circular through groove is concentrically arranged on the pipe body outside the second current limiting mechanism along the circumferential direction;

the first flow limiting mechanism comprises fan-shaped plates and a first disc, a plurality of fan-shaped plates are uniformly distributed on the outer side wall of the first disc along the circumferential direction, the first disc is concentrically sleeved with a first rotating shaft, one end of the first rotating shaft is fixedly connected with a driven bevel gear, and the other end of the first rotating shaft is rotatably sleeved in a blind hole in the second flow limiting mechanism through a rolling bearing;

the driven bevel gear is used for being in meshing transmission with a driving bevel gear on the adjusting mechanism;

the adjusting mechanism comprises a second rotating shaft, a driving bevel gear and a rotating handle, and the driving bevel gear and the rotating handle are respectively and fixedly connected to two end faces of the second rotating shaft; a sealing disc is fixedly sleeved on one side of the outer side wall of the second rotating shaft;

the matching body of the first rotating shaft and the second rotating shaft is positioned in the L-shaped sleeve box, and one end of the L-shaped sleeve box sleeved with the second rotating shaft is fixedly connected to the inner wall of the pipe body;

the second flow limiting mechanism comprises a second disc and a gear ring, a blind hole is concentrically arranged at the center of one side surface of the second disc close to the first flow limiting mechanism, and fan-shaped through grooves are uniformly distributed on the second disc outside the blind hole along the circumferential direction;

gear rings are arranged on the outer side edge of the second disc along the circumferential direction, and gear teeth uniformly distributed on the outer side edge of each gear ring penetrate through the circular through grooves and extend to the outer sides of the circular through grooves to be meshed with the gear discs;

the gear disc is arranged in the adjusting box, and one end of the adjusting box is fixedly connected to the outer wall of one side of the pipe body;

arc-shaped sealing sleeves are concentrically arranged outside the circular through grooves on the two sides of the adjusting box, the arc-shaped sealing sleeves are fixedly connected to the outer side walls of the pipe body, and the two ends of each arc-shaped sealing sleeve are fixedly connected to the two outer side walls of the adjusting box;

the section of the arc-shaped sealing sleeve is arranged in a U shape, the gear teeth are positioned in the arc-shaped sealing sleeve, and the arc-shaped sealing sleeve is communicated with the inside of the adjusting box;

an L-shaped limiting ring is arranged on one side surface of the second disc close to the first current limiting mechanism and positioned on the outer side of the fan-shaped through groove along the circumferential direction; the L-shaped limiting ring is used for clearance fit of one end of the sector plate;

and L-shaped sealing rings are symmetrically arranged on two side surfaces of the circular plate body of the gear ring along the circumferential direction.

Furthermore, the outer side walls of the two ends of the pipe body are fixedly sleeved with flange plates, and mounting holes are uniformly distributed in the flange plates.

Furthermore, a rectangular through groove is formed in the pipe body on the outer side of one end of the L-shaped sleeve box, and one end of a second rotating shaft connected with a rotating handle penetrates through the rectangular through groove and extends to the outer side of the pipe body.

Further, the rectangle is led to fixedly connected with the sealed piece of rectangle on the L shape cover box inner wall of groove below, be provided with the through-hole on the sealed piece of rectangle with one heart, be provided with circular seal groove on the inner wall of through-hole with one heart, circular seal groove be used for with sealed dish clearance fit, and the position cooperation between circular seal groove and the sealed dish is provided with the sealing washer.

Furthermore, a third rotating shaft is concentrically sleeved on the gear disc, and two ends of the third rotating shaft are rotatably connected to the adjusting box through rolling bearings.

Furthermore, one end of the third rotating shaft penetrates through the adjusting box and extends to the outer side of the adjusting box to be embedded with the output end of the motor, and the motor is fixedly connected to the outer wall of one side of the adjusting box through the base.

Furthermore, a control box is fixedly connected to the outer wall of one side of the adjusting box, a single chip microcomputer is fixedly installed in the control box, and a display screen and a button are fixedly installed on one outer side wall of the control box; the single chip microcomputer is electrically connected with the motor, the flow velocity detection sensor, the display screen and the button through conducting wires respectively.

Further, the pipe body inner wall of circular logical groove both sides is gone up and is provided with L shape seal groove along circumference symmetry, L shape seal groove is used for with L shape sealing ring clearance fit, and the position cooperation is provided with the sealing washer between L shape sealing ring and the L shape seal groove.

Furthermore, the number of the fan-shaped plates and the number of the fan-shaped through grooves are equal, the radial size of each fan-shaped plate is larger than that of each fan-shaped through groove, and the radian size of each fan-shaped plate is larger than that of each fan-shaped through groove.

The invention has the following beneficial effects:

1. the invention realizes the current-limiting regulation through the change of the size of the gap between the fan-shaped plate and the fan-shaped through groove in the device, therefore, the current-limiting regulation can be realized through the rotation of any one of the first current-limiting mechanism and the second current-limiting mechanism, the current-limiting regulation can be realized through the meshing arrangement between the gear ring on the second current-limiting mechanism and the gear disc under the rotation of the motor, the automatic rotation of the second current-limiting mechanism can be realized to carry out the current-limiting regulation, the meshing arrangement between the driven bevel gear and the driving bevel gear in the first current-limiting mechanism can be used by a worker to realize the rotation of the first current-limiting mechanism through the rotation of the rotating handle, the arrangement realizes the combination of the manual regulation and the automatic regulation, the regulation modes are rich, the operation is simple, when one regulation mode is damaged, can operate with another regulation mode, reduce the maintenance cost, in addition, through wireless transceiver's in the control box setting, still make things convenient for the long-range regulation and control of concentrating of staff.

2. According to the invention, through the arrangement of the single chip microcomputer, the flow velocity detection sensor and the display screen, when the device is used, the flow velocity of water in the device can be detected in real time through the arrangement of the flow velocity detection sensor, detected data is processed by the single chip microcomputer and then displayed on the display screen, and a worker can accurately regulate the flow velocity of the water through the number displayed on the display screen.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view illustrating a drainage restriction adjusting device according to an embodiment;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a cross-sectional view of the tubular body of FIG. 1;

FIG. 4 is a cross-sectional view of the arcuate seal cartridge of FIG. 1 in position;

FIG. 5 is a schematic view of the overall structure of the tube body;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is an enlarged view taken at A in FIG. 3;

FIG. 8 is an enlarged view at B in FIG. 6;

fig. 9 is a schematic view of the overall structure of the first flow restriction mechanism;

FIG. 10 is a schematic view of the overall structure of the adjustment mechanism;

fig. 11 is a schematic view of the entire structure of the second flow restriction mechanism.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a pipe body; 2. a flow rate detection sensor; 3. an adjustment mechanism; 4. a motor; 5. a control box; 6. a first flow restriction mechanism; 7. an L-shaped sleeve box; 8. a second flow restricting mechanism; 9. a rolling bearing; 101. an arc-shaped sealing sleeve; 102. a flange plate; 103. a rectangular through groove; 104. a circular through groove; 105. an L-shaped sealing groove; 301. a second rotating shaft; 302. a driving bevel gear; 303. sealing the disc; 304. rotating the handle; 401. an adjustment box; 402. a base; 403. a third rotating shaft; 404. a gear plate; 501. a button; 502. a display screen; 503. a single chip microcomputer; 601. a first rotating shaft; 602. a driven bevel gear; 603. a sector plate; 604. a first disc; 701. a rectangular sealing block; 801. a second disc; 802. a fan-shaped through groove; 803. an L-shaped sealing ring; 804. an L-shaped limiting ring; 805. a gear ring; 806. blind holes; 1021. mounting holes; 7011. a circular seal groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 is to be understood that the terms "open", "one side", "lower", "height", "in the annular direction", "concentrically arranged", "alternately connected", "inner", "peripheral side", "outer", and the like, indicate orientations or positional relationships and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example one

Referring to fig. 1-3, the invention relates to a drainage flow-limiting adjusting device, which comprises a pipe body 1, a first flow-limiting mechanism 6 and a second flow-limiting mechanism 8, wherein the second flow-limiting mechanism 8 is concentrically arranged in the pipe body 1, the first flow-limiting mechanism 6 is concentrically arranged in the pipe body 1 at one side of the second flow-limiting mechanism 8, the first flow-limiting mechanism 6 and the second flow-limiting mechanism 8 are arranged in a matching manner to play a role in limiting flow, meanwhile, a flow velocity detection sensor 2 is arranged in the pipe body 1 at the other side of the second flow-limiting mechanism 8, the flow velocity detection sensor 2 is arranged to detect the water flow velocity at the water inlet end, and the flow velocity detection sensor 2 is fixedly sleeved on the side wall of the;

wherein, a circular through groove 104 is concentrically arranged on the pipe body 1 at the outer side of the second current limiting mechanism 8 along the circumferential direction;

the fixed ring flange 102 that has cup jointed on the both ends lateral wall of body 1, the equipartition is provided with mounting hole 1021 on the ring flange 102, and the cooperation setting of ring flange 102 and mounting hole 1021 is convenient for this device and is connected with conduit, and during the connection, the ring flange 102 that is close to flow velocity detection sensor 2 one end is connected with the inlet channel.

Referring to fig. 3, 9 and 11, the first flow limiting mechanism 6 includes a sector plate 603 and a first disk 604, a plurality of sector plates 603 are uniformly arranged on an outer side wall of the first disk 604 along a circumferential direction, the first disk 604 is concentrically sleeved with a first rotating shaft 601, one end of the first rotating shaft 601 is fixedly connected with a driven bevel gear 602, and the other end of the first rotating shaft 601 is rotatably sleeved in a blind hole 806 on the second flow limiting mechanism 8 through a rolling bearing 9, so that the arrangement can realize that one end of the first rotating shaft 601 rotates with a center of the second flow limiting mechanism 8 as a circle center, and can realize relative rotation between the first flow limiting mechanism 6 and the second flow limiting mechanism 8;

the driven bevel gear 602 is used for meshing transmission with the driving bevel gear 302 on the adjusting mechanism 3, and the arrangement can realize the rotation of the driven bevel gear 602 under the action of the rotation of the driving bevel gear 302, and further realize the rotation of the first flow limiting mechanism 6.

Referring to fig. 5-8 and 10, the adjusting mechanism 3 includes a second rotating shaft 301, a driving bevel gear 302 and a rotating handle 304, the driving bevel gear 302 and the rotating handle 304 are respectively and fixedly connected to two end surfaces of the second rotating shaft 301; a sealing disc 303 is fixedly sleeved on one side of the outer side wall of the second rotating shaft 301, a rotating handle 304 is arranged, so that a worker can conveniently perform flow limiting adjustment manually, and the driving bevel gear 302 can be driven to rotate when the rotating handle 304 is rotated;

the matching body of the first rotating shaft 601 and the second rotating shaft 301 is positioned inside the L-shaped sleeve 7, one end of the L-shaped sleeve 7 sleeved with the second rotating shaft 301 is fixedly connected to the inner wall of the pipe body 1, and the arrangement of the L-shaped sleeve 7 can protect the driving bevel gear 302 and the driven bevel gear 602 and avoid the influence of impurities in water on the working performance of the driving bevel gear and the driven bevel gear;

a rectangular through groove 103 is formed in the pipe body 1 on the outer side of one end of the L-shaped sleeve 7, wherein one end of a second rotating shaft 301 connected with a rotating handle 304 penetrates through the rectangular through groove 103 and extends to the outer side of the pipe body 1;

fixedly connected with rectangle seals piece 701 on 7 inner walls of L shape cover box of rectangle logical groove 103 below, be provided with the through-hole on the sealed piece 701 of rectangle with one heart, be provided with circular seal groove 7011 on the inner wall of through-hole with one heart, circular seal groove 7011 is used for with sealed dish 303 clearance fit, and the position cooperation is provided with the sealing washer between circular seal groove 7011 and the sealed dish 303, this setting can be under the effect of guaranteeing second axis of rotation 301 free rotation, play sealed effect, avoid water to spill over from rectangle logical groove 103.

Referring to fig. 4, 7, 8 and 11, the second flow limiting mechanism 8 includes a second disk 801 and a gear ring 805, a blind hole 806 is concentrically disposed at a center of a side surface of the second disk 801 close to the first flow limiting mechanism 6, the blind hole 806 can be freely rotated by the second flow limiting mechanism 8 with the center of the blind hole 806 as a center, and fan-shaped through grooves 802 are uniformly disposed on the second disk 801 at the outer side of the blind hole 806 along the circumferential direction;

a gear ring 805 is circumferentially arranged on the outer side edge of the second disk 801, gear teeth uniformly distributed on the outer side edge of the gear ring 805 penetrate through the circular through groove 104 and extend to the outer side of the circular through groove 104 to be meshed with the gear disc 404, and the gear ring 805 can rotate under the action of rotation of the gear disc 404, so that the rotation of the second flow limiting mechanism 8 is realized;

arc-shaped sealing sleeves 101 are concentrically arranged outside the circular through grooves 104 on the two sides of the regulating box 401, the arc-shaped sealing sleeves 101 are fixedly connected to the outer side walls of the pipe body 1, and meanwhile, the two ends of the arc-shaped sealing sleeves 101 are fixedly connected to the two outer side walls of the regulating box 401;

the section of the arc-shaped sealing sleeve 101 is arranged in a U shape, the gear teeth are positioned in the arc-shaped sealing sleeve 101, the arc-shaped sealing sleeve 101 is communicated with the inside of the adjusting box 401, and the arrangement can play a role in sealing and protecting the gear ring 805 on the premise of ensuring the free rotation of the second current limiting mechanism 8;

an L-shaped limiting ring 804 is arranged on one side surface of the second disc 801 close to the first flow limiting mechanism 6 and positioned on the outer side of the fan-shaped through groove 802 along the circumferential direction; the L-shaped limiting ring 804 is used for clearance fit at one end of the sector plate 603, and the arrangement can play a role in limiting and guiding the movement of the sector plate 603;

l-shaped sealing rings 803 are symmetrically arranged on two side faces of the circular ring plate body of the gear ring 805 along the circumferential direction;

the inner walls of the pipe body 1 at two sides of the circular through groove 104 are symmetrically provided with L-shaped sealing grooves 105 along the circumferential direction, the L-shaped sealing grooves 105 are used for being in clearance fit with the L-shaped sealing rings 803, and sealing rings are arranged between the L-shaped sealing rings 803 and the L-shaped sealing grooves 105 in a matching manner, so that the sealing effect can be achieved, and water is prevented from overflowing from the circular through groove 104;

the number of the fan-shaped plates 603 and the fan-shaped through grooves 802 is equal, the radial size of the fan-shaped plates 603 is larger than that of the fan-shaped through grooves 802, and the radian size of the fan-shaped plates 603 is larger than that of the fan-shaped through grooves 802.

Referring to fig. 1-4, the gear plate 404 is disposed in the adjusting box 401, and one end of the adjusting box 401 is fixedly connected to the outer wall of one side of the tube 1;

a third rotating shaft 403 is concentrically sleeved on the gear disc 404, and both ends of the third rotating shaft 403 are rotatably connected to the adjusting box 401 through rolling bearings 9;

one end of the third rotating shaft 403 passes through the adjusting box 401 and extends to the outer side of the adjusting box 401 to be embedded with the output end of the motor 4, the motor 4 is fixedly connected to the outer wall of one side of the adjusting box 401 through the base 402, and the third rotating shaft can be driven by the rotation of the motor 4 to realize the rotation of the gear disc 404 and further realize the rotation of the second current limiting mechanism 8, so that the device can realize automatic current limiting adjustment, and the motor 4 is a positive and negative motor;

the outer wall of one side of the adjusting box 401 is also fixedly connected with a control box 5, a single chip microcomputer 503 is fixedly installed inside the control box 5, the single chip microcomputer 503 is used for automatically controlling electrical components in the device, and a display screen 502 and a button 501 are fixedly installed on one outer side wall of the control box 5; display screen 502 is used for coming out the digital display that velocity of flow detection sensor 2 detected, make things convenient for staff's observation, setting up of button 501 makes things convenient for staff to motor 4's control, during the operation, the staff can be according to the figure that shows on the display screen 502, carry out accurate adjustment, singlechip 503 is respectively through conducting wire and motor 4, velocity of flow detection sensor 2, display screen 502 and button 501 electric connection, still be provided with wireless transceiver (the drawing is not drawn) in the control box 5, wireless transceiver is used for and the control center between the exchange of information, make things convenient for the long-range control to this device of staff.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a drainage current-limiting adjusting device, includes body (1), first current-limiting mechanism (6) and second current-limiting mechanism (8), its characterized in that: a second flow limiting mechanism (8) is concentrically arranged in the pipe body (1), a first flow limiting mechanism (6) is concentrically arranged in the pipe body (1) on one side of the second flow limiting mechanism (8), a flow velocity detection sensor (2) is arranged in the pipe body (1) on the other side of the second flow limiting mechanism (8), and the flow velocity detection sensor (2) is fixedly sleeved on the side wall of the pipe body (1);

a circular through groove (104) is concentrically arranged on the pipe body (1) at the outer side of the second flow limiting mechanism (8) along the circumferential direction;

the first flow limiting mechanism (6) comprises fan-shaped plates (603) and a first disc (604), a plurality of fan-shaped plates (603) are uniformly distributed on the outer side wall of the first disc (604) along the circumferential direction, the first disc (604) is concentrically sleeved with a first rotating shaft (601), one end of the first rotating shaft (601) is fixedly connected with a driven bevel gear (602), and the other end of the first rotating shaft (601) is rotatably sleeved in a blind hole (806) in the second flow limiting mechanism (8) through a rolling bearing (9);

the driven bevel gear (602) is used for being in meshing transmission with the driving bevel gear (302) on the adjusting mechanism (3);

the adjusting mechanism (3) comprises a second rotating shaft (301), a driving bevel gear (302) and a rotating handle (304), and the driving bevel gear (302) and the rotating handle (304) are respectively and fixedly connected to two end faces of the second rotating shaft (301); a sealing disc (303) is fixedly sleeved on one side of the outer side wall of the second rotating shaft (301);

the matching body of the first rotating shaft (601) and the second rotating shaft (301) is positioned in the L-shaped sleeve box (7), and one end of the L-shaped sleeve box (7) sleeved with the second rotating shaft (301) is fixedly connected to the inner wall of the pipe body (1);

the second flow limiting mechanism (8) comprises a second disc (801) and a gear ring (805), a blind hole (806) is concentrically arranged at the center of one side face of the second disc (801) close to the first flow limiting mechanism (6), and fan-shaped through grooves (802) are uniformly distributed on the second disc (801) on the outer side of the blind hole (806) along the circumferential direction;

gear rings (805) are arranged on the outer side edges of the second disks (801) along the circumferential direction, gear teeth uniformly distributed on the outer side edges of the gear rings (805) penetrate through the circular through grooves (104) and extend to the outer sides of the circular through grooves (104) to be meshed with the gear disks (404);

the gear disc (404) is arranged in the adjusting box (401), and one end of the adjusting box (401) is fixedly connected to the outer wall of one side of the pipe body (1);

arc-shaped sealing sleeves (101) are concentrically arranged on the outer sides of the circular through grooves (104) on the two sides of the adjusting box (401), the arc-shaped sealing sleeves (101) are fixedly connected to the outer side wall of the pipe body (1), and meanwhile the two ends of the arc-shaped sealing sleeves (101) are fixedly connected to the two outer side walls of the adjusting box (401);

the section of the arc-shaped sealing sleeve (101) is arranged in a U shape, the gear teeth are positioned inside the arc-shaped sealing sleeve (101), and the arc-shaped sealing sleeve (101) is communicated with the inside of the adjusting box (401);

an L-shaped limiting ring (804) is arranged on one side surface, close to the first current limiting mechanism (6), of the second disc (801) and located on the outer side of the fan-shaped through groove (802) along the circumferential direction; the L-shaped limiting ring (804) is used for clearance fit of one end of the sector plate (603);

and L-shaped sealing rings (803) are symmetrically arranged on two side surfaces of the circular ring plate body of the gear ring (805) along the circumferential direction.

2. A drainage flow-limiting regulation device as claimed in claim 1, wherein the outer side walls of both ends of the pipe body (1) are fixedly sleeved with flanges (102), and the flanges (102) are uniformly provided with mounting holes (1021).

3. A drain flow-limiting regulation device according to claim 1, wherein a rectangular through groove (103) is provided in the tubular body (1) outside one end of the L-shaped sleeve (7), and wherein one end of the second rotation shaft (301) to which the rotation handle (304) is attached extends to the outside of the tubular body (1) through the rectangular through groove (103).

4. A water drainage flow limiting adjustment device according to claim 3, wherein a rectangular sealing block (701) is fixedly connected to the inner wall of the L-shaped sleeve box (7) below the rectangular through groove (103), a through hole is concentrically formed in the rectangular sealing block (701), a circular sealing groove (7011) is concentrically formed in the inner wall of the through hole, the circular sealing groove (7011) is in clearance fit with the sealing disc (303), and a sealing ring is disposed between the circular sealing groove (7011) and the sealing disc (303) in a position fit manner.

5. A water discharge flow-limiting regulating device according to claim 1, wherein a third rotating shaft (403) is concentrically sleeved on the gear plate (404), and both ends of the third rotating shaft (403) are rotatably connected to the regulating box (401) through rolling bearings (9).

6. A water drainage flow limiting adjusting device as claimed in claim 5, wherein one end of the third rotating shaft (403) passes through the adjusting box (401) and extends to the outer side of the adjusting box (401) to be embedded with the output end of the motor (4), and the motor (4) is fixedly connected to the outer wall of one side of the adjusting box (401) through the base (402).

7. The water drainage flow-limiting adjusting device as claimed in claim 6, wherein a control box (5) is further fixedly connected to an outer wall of one side of the adjusting box (401), a single chip microcomputer (503) is fixedly installed inside the control box (5), and a display screen (502) and a button (501) are fixedly installed on an outer side wall of the control box (5) respectively; the single chip microcomputer (503) is electrically connected with the motor (4), the flow velocity detection sensor (2), the display screen (502) and the button (501) through conducting wires respectively.

8. The water drainage flow-limiting adjusting device as claimed in claim 1, wherein the inner walls of the pipe body (1) at two sides of the circular through groove (104) are symmetrically provided with L-shaped sealing grooves (105) along the circumferential direction, the L-shaped sealing grooves (105) are used for being in clearance fit with the L-shaped sealing ring (803), and a sealing ring is arranged between the L-shaped sealing ring (803) and the L-shaped sealing groove (105) in a position fit manner.

9. A flow-restricting regulating device according to claim 1, characterized in that the sector plates (603) and the sector through slots (802) are provided in equal numbers, the radial dimension of the sector plates (603) being greater than the radial dimension of the sector through slots (802), while the arc dimension of the sector plates (603) is greater than the arc dimension of the sector through slots (802).