CN210238668U

CN210238668U - Push type drainage device

Info

Publication number: CN210238668U
Application number: CN201920857150.2U
Authority: CN
Inventors: Dameng Zhao; 赵大猛; Bingsong Yang; 杨炳松; Xiaoqi Wang; 王小琦
Original assignee: Zhuhai Sunway Injection Mold Co ltd
Current assignee: Zhuhai Sunway Injection Mold Co ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-04-03
Anticipated expiration: 2029-06-06

Abstract

The utility model provides a press type drainage device, which comprises a pipe seat, an overflow cover, a pressure rod and a press transmission component, wherein the pipe seat is provided with a water inlet and a water outlet, the overflow cover is arranged at the water inlet, a threaded connection hole is arranged in the pipe seat, the first end of the pressure rod is connected with the overflow cover, the press transmission component comprises an upper sleeve, a lower sleeve, a fixed cover, a rotary inner cylinder and an elastic part, the two ends of the threaded connection hole are respectively connected with the upper sleeve and the lower sleeve, a drainage channel is formed between the upper sleeve and the pipe seat, the drainage channel is respectively communicated with the water inlet and the water outlet, the fixed cover is connected with the upper part of the upper sleeve, the rotary inner cylinder is rotatably arranged in the upper sleeve, the elastic part is arranged in the lower sleeve, the pressure rod sequentially penetrates through the fixed cover, the rotary inner cylinder and the upper sleeve, the first end of the pressure rod is in, a water outlet is arranged in the lower sleeve and is communicated with the water outlet. The utility model has the characteristics of it is waterproof.

Description

Push type drainage device

Technical Field

The utility model relates to a drainage technical field specifically is to relate to a push type drainage device.

Background

There are three main types of drainage devices commonly used by wash basins in the current market:

the first is a turnover type, and the user can adjust and rotate the direction freely by hands, so that the water accumulated in the wash basin can be drained. But the sealing performance of the discharge rod is reduced after the wash basin is used for a long time, so that the wash basin cannot hold water, and the condition of immovable turnover also occurs.

The second is the lifting type, the structure of the lifting type drainer is complex, the style is old, the disassembly and assembly are very big problems for users, and certain force is needed to push and pull the lifting rod, which is not in line with the society which is now simple and novel.

The third is the push type, and the existing push type drainer is not only complex in structure and difficult to install, but also is not waterproof.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a waterproof push type drainage device.

In order to achieve the above object, the utility model provides a press type drainage device, which comprises a pipe seat, an overflow cover, a pressure bar and a press transmission assembly, wherein the pipe seat is respectively provided with a water inlet and a water outlet at two ends, and the overflow cover is arranged at the water inlet; the tube base is internally provided with a threaded connecting hole and a drain hole, the drain hole is arranged on the circumference of the threaded connecting hole, and the drain hole is respectively communicated with the water inlet and the water outlet; the pressing transmission assembly is connected with the threaded connecting hole, and the first end of the pressing rod is connected with the overflow cover; the pressing transmission assembly comprises an upper sleeve, a lower sleeve, a fixed cover, a rotary inner tube and an elastic piece, the upper sleeve is in threaded connection with the upper end of the threaded connection hole, the lower sleeve is in threaded connection with the lower end of the threaded connection hole, a drainage channel is formed between the outer peripheral wall of the upper sleeve and the inner peripheral wall of the tube seat, the drainage hole is communicated with the drainage channel, the fixed cover is connected with the upper end of the upper sleeve, a containing space is formed between the inner part of the upper sleeve and the fixed cover, the rotary inner tube is rotatably arranged in the containing space, the elastic piece is arranged in the lower sleeve, the pressing rod sequentially penetrates through the fixed cover, the rotary inner tube and the upper sleeve, the first end of the pressing rod is in clearance fit with the fixed cover, the second end of the pressing rod is located in the lower sleeve, the elastic piece is abutted between the second end of the pressing.

It is thus clear from the above-mentioned scheme, through set up threaded connection hole and wash port in the tube socket, will press drive assembly and threaded connection hole connection, sewage gets into from the water inlet of tube socket, pass the wash port from the outside of pressing drive assembly, then discharge from the delivery port of tube socket, can guarantee that sewage can not get into the inside of pressing drive assembly, through set up the outlet in the lower sleeve, even sewage gets into the inside of pressing drive assembly, also can follow the outlet and discharge, avoid sewage to store up, guarantee to press drive assembly's internal environment dry, prevent to press the inside corrosion or the corruption that takes place of drive assembly, indirectly prolong its life.

The further scheme is that a connecting piece and a plurality of connecting arms are arranged in the tube seat, the threaded connecting holes are formed in the connecting piece, the connecting arms are arranged in the circumferential direction of the connecting piece, and a drain hole is formed between every two adjacent connecting arms.

The further scheme is that the upper end part of the fixed cover is provided with a first protruding part, and the first protruding part is provided with a rotary driving surface.

The further scheme is that a plurality of first lugs are arranged on the middle portion of the pressing rod in the circumferential direction, a plurality of second lugs are arranged on the second end of the pressing rod in the circumferential direction, and the first lugs and the second lugs are arranged in a staggered mode.

A plurality of third convex blocks are annularly arranged on the inner side of the first end of the rotating inner cylinder, a first sliding groove is formed between every two adjacent third convex blocks, the first sliding groove is arranged along the height direction of the rotating inner cylinder, the upper end and the lower end of each third convex block are respectively provided with a first inclined surface, and the first inclined surfaces are inclined downwards along the rotating direction of the rotating inner cylinder; a plurality of fourth convex blocks are annularly arranged on the inner side of the second end of the rotating inner cylinder, a second sliding groove is formed between every two adjacent fourth convex blocks and is arranged along the height direction of the rotating inner cylinder, the first sliding groove and the second sliding groove are arranged in a staggered manner, a second inclined plane is arranged on the upper portion of each fourth convex block and inclines upwards along the rotating direction of the rotating inner cylinder; the first bump is respectively connected with the first sliding groove and the second sliding groove in a sliding manner, and the second bump is connected with the second sliding groove in a sliding manner.

The further scheme is that a stopping part is arranged at the end part of the second end of the rotary inner cylinder, a first mounting hole and a plurality of second mounting holes are formed in the stopping part, the plurality of second mounting holes are respectively formed in the circumferential direction of the first mounting hole, the first mounting hole is respectively communicated with each second mounting hole, the second mounting holes are communicated with corresponding second sliding grooves, the second end of the pressing rod penetrates through the first mounting holes, and the second protruding block is connected with the second mounting holes in a sliding mode.

A second bulge part and a third bulge part are annularly arranged in the middle of the fixed cover, the second bulge part and the third bulge part are arranged in a vertically staggered mode, one side, facing the upper sleeve, of the third bulge part is provided with an inclined part, and the inclined part is arranged in an upward inclined mode along the root of the third bulge part; go up telescopic second end and be provided with first draw-in groove and second draw-in groove, first draw-in groove sets up at last telescopic lateral wall and opening upwards, and the telescopic lateral wall is transversely run through to the second draw-in groove, and the second bellying is connected with first draw-in groove, and the third bellying is connected with the second draw-in groove.

In a further aspect, a plurality of fourth protrusions are disposed on a lower end of the stationary cover, the fourth protrusions protruding downward along an end surface of the stationary cover, the fourth protrusions abutting the rotary inner cylinder.

The further scheme is that the upper ring of the overflow cover is provided with a sealing strip which is abutted against the inner side wall of the pipe seat.

Drawings

Fig. 1 is an exploded view of an embodiment of the present invention.

Fig. 2 is a sectional view of the embodiment of the present invention in a water storage state.

Fig. 3 is a partial enlarged view of embodiment a of the present invention.

Fig. 4 is a structural diagram of a pressure lever according to an embodiment of the present invention.

Fig. 5 is a perspective sectional view of a tube socket according to an embodiment of the present invention.

Fig. 6 is a perspective sectional view of the rotary inner cylinder according to the embodiment of the present invention.

Fig. 7 is a perspective cross-sectional view of an upper sleeve according to an embodiment of the present invention.

Fig. 8 is a structural view of a fixing cover according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of the pressing rod, the rotating inner cylinder and the elastic member in the water storage state according to the embodiment of the present invention.

Fig. 10 is a bottom view of the pressing rod and the rotary inner cylinder in the water storage state according to the embodiment of the present invention.

Fig. 11 is a schematic structural view of the pressing rod, the rotating inner cylinder and the elastic member according to the embodiment of the present invention when the maximum stroke is pressed.

Fig. 12 is a bottom view of the pressing rod and the rotary inner cylinder according to the embodiment of the present invention when the maximum stroke is pressed.

Fig. 13 is a schematic structural view of the pressing rod, the rotating inner cylinder and the elastic member in the drainage state according to the embodiment of the present invention.

Fig. 14 is a bottom view of the pressing rod and the rotary inner cylinder in the drainage state according to the embodiment of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1 to 3, fig. 1 is an exploded view of an embodiment of the present invention, fig. 2 is a sectional view of an embodiment of the present invention in a water storage state, and fig. 3 is a partial enlarged view of an embodiment a of the present invention. The pressing type drainage device comprises a tube seat 1, an overflow cover 2, a pressure lever 3 and a pressing transmission assembly 4. The pipe seat 1 is provided with a water inlet and a water outlet on two ends respectively, and the overflow cover 2 is arranged at the water inlet. The pipe holder 1 is internally provided with a threaded connecting hole 16 and a drain hole 12, the drain hole 12 is arranged on the circumference of the threaded connecting hole 16, and the drain hole 12 is respectively communicated with a water inlet and a water outlet. The pressing transmission component 4 is connected with the threaded connection hole 16, and the first end of the pressure lever 3 is connected with the overflow cover 2 in a threaded manner. The pressing type drainage device penetrates through the drainage hole of the washbasin from top to bottom, the pressing type drainage device protrudes downwards out of the washbasin and is locked through the fastening nut 5, and the drainage pipe is communicated with the drainage pipe through the drainage pipe connector 6. The overflow cover 2 is preferably made of metal material, and a first protective cover 7 is sleeved on the overflow cover, wherein the first protective cover 7 is made of plastic or rubber material. The sealing strip 21 is arranged on the overflow cover 2 in the circumferential direction, when the drainage device is in a water storage state, the sealing strip 21 is abutted to the inner side wall of the pipe seat 1, and when the drainage device is in a drainage state, the overflow cover 2 and the sealing strip 21 are lifted upwards under the action of the pressing rod 3, so that the water inlet of the pipe seat 1 is opened.

The pressing transmission assembly 4 includes an upper sleeve 41, a lower sleeve 42, a fixing cover 43, a rotary inner cylinder 44, and an elastic member 45. The upper sleeve 41 is screwed with the upper end of the screw coupling hole 16, the lower sleeve 42 is screwed with the lower end of the screw coupling hole 16, and the upper sleeve 41 and the lower sleeve 42 are coaxially disposed and communicate with each other. A drainage channel is formed between the outer peripheral wall of the upper sleeve 41 and the inner peripheral wall of the stem 1, and the drainage hole 12 communicates with the drainage channel. The fixed cover 43 is connected to the upper end of the upper sleeve 41, an accommodation space is formed between the inside of the upper sleeve 41 and the fixed cover 43, and the rotary inner cylinder 44 is rotatably disposed in the accommodation space. The first end of the lower sleeve 42 is provided with a mounting cavity 421, the second end of the lower sleeve 42 is provided with a water drainage hole 422, the mounting cavity 421 is communicated with the water drainage hole 422 up and down, and the water drainage hole 422 is communicated with the water outlet of the seat tube 1. The elastic member 45 is preferably a spring strip, and the elastic member 45 is vertically disposed in the mounting cavity 421 of the lower sleeve 42. The outer diameter of the elastic member 45 is larger than the diameter of the drain hole 422 to prevent the elastic member 45 from being detached from the drain hole 422. The pressing rod 3 sequentially penetrates through the fixed cover 43, the rotary inner cylinder 44 and the upper sleeve 41, a first end of the pressing rod 3 is in clearance fit with the fixed cover 43, and a second end of the pressing rod 3 is located in the lower sleeve 42. The elastic member 45 elastically abuts between the second end of the pressing rod 3 and the lower sleeve 42. The press rod 3, the rotary inner cylinder 44, the upper sleeve 41, the lower sleeve 42 and the fixed cover 43 in this embodiment can be made of plastic materials, and compared with the traditional hardware, the press rod is light in weight and low in cost, and can not be rusted.

Referring to fig. 4, fig. 4 is a structural diagram of a compression bar according to an embodiment of the present invention. Three first lugs 31 are annularly arranged on the middle part of the pressure lever 3, and the three first lugs 31 are evenly arranged at intervals. The end faces of the upper and lower ends of the first bump 31 are set as first horizontal planes, and a trapezoidal portion is vertically arranged between the two first horizontal planes. The trapezoidal part is trapezoidal in the cross-section of vertical direction. Wherein, the upper first horizontal plane is used for abutting against the inner surface of the fixed cover 43, so that the pressure lever 3 is positioned at an upper position, and the drainage device is in a drainage state. Three second lugs 32 are circumferentially arranged on the second end of the pressure lever 3, the three second lugs 32 are uniformly arranged at intervals, and the first lugs 31 and the second lugs 32 are circumferentially staggered. The second protrusion 32 is vertically arranged in a strip-shaped structure, the end faces of the upper and lower ends of the second protrusion 32 are provided with second horizontal planes, and the upper second horizontal plane is used for being abutted against the lower end face of the rotary inner cylinder 44, so that the pressure lever 3 is positioned at a lower position, and at this time, the drainage device is in a water storage state. A second level below is for elastic abutment with the elastic member 45. The position of the pressing rod 3 where the first bump 31 is located is used as a boundary line, a hexagonal column is arranged above the boundary line, and a column is arranged below the boundary line. The top of hexagonal column is equipped with the screw thread that is used for overflow lid 2 to connect, and cylindrical lower extreme still is provided with the circular cone post, can insert the center of elastic component 45 smoothly when conveniently moving down. When the pressing transmission assembly 4 is mounted and dismounted, the hexagonal screwdriver can be sleeved on the hexagonal column of the pressing rod 3, the fixing cover 43 is driven by the pressing rod 3, and the upper sleeve 41 is driven to rotate relative to the threaded connecting hole 16.

Referring to fig. 5 in conjunction with fig. 3, fig. 5 is a perspective cross-sectional view of a tube socket according to an embodiment of the present invention. The socket 1 is provided with a connecting member 11 and four connecting arms 111 therein, and a screw coupling hole 16 is provided in the connecting member 11. A plurality of connecting arms 111 are arranged at regular intervals in the circumferential direction of the connecting member 11, and a drainage hole 12 is formed between two adjacent connecting arms 111. Both ends of the connecting arm 111 are connected to the connecting portion 11 and the inner wall of the socket 1, respectively. The outer side of the lower part of the tube seat 1 is provided with a first external thread connecting part 14 and a second external thread connecting part 15, and the first external thread connecting part 14 and the second external thread connecting part 15 are arranged up and down. The first external thread connection 14 is used for connecting with the fastening nut 5, and the second external thread connection 15 is used for connecting with the drain pipe connector 6. The tube seat 1 is made of metal materials in an integrated forming mode, a seat cap 13 is arranged on the upper portion of the tube seat 1, and the seat cap 13 extends outwards along the upper edge of the tube seat 1. The tube seat 1 is provided with a second protective cover 8, the second protective cover 8 is annular and wraps the seat cap 13 of the tube seat 1, and the second protective cover 8 is made of plastic or rubber.

Referring to fig. 6 in conjunction with fig. 3, fig. 6 is a perspective sectional view of the rotary inner cylinder according to the embodiment of the present invention. Six third protrusions 441 are annularly arranged on the inner side of the first end of the rotating inner cylinder 44, and the six third protrusions 441 are evenly arranged at intervals. A first sliding groove 442 is formed between two adjacent third protrusions 441, and the first sliding groove 442 is disposed along the height direction of the rotating inner cylinder 44. The upper and lower ends of the third protrusion 441 are provided with first inclined surfaces, and the first inclined surfaces are inclined downwards along the rotation direction of the rotary inner cylinder 44.

Six fourth protrusions 443 are circumferentially arranged on the inner side of the second end of the rotating inner cylinder 44, and the six fourth protrusions 443 are evenly spaced. The fourth projection 443 and the third projection 441 are circumferentially offset. A second sliding groove 444 is formed between two adjacent fourth protrusions 443, and the second sliding groove 444 is disposed along the height direction of the rotary inner cylinder 44. The first and second sliding

grooves

442 and 444 are circumferentially displaced and communicate with each other. The upper portion of the fourth protrusion 443 is provided with a second inclined surface that is inclined upward in the rotation direction of the rotary inner cylinder 44. When the pressing rod 3 moves up and down, the first protrusion 31 is slidably connected with the first sliding groove 442 and the second sliding groove 444, and the second protrusion 32 is slidably connected with the second sliding groove 444.

The second end of the rotating inner cylinder 44 is provided with a stopping portion 445, the stopping portion 445 is provided with a first mounting hole 446 and three second mounting holes 447, and the three second mounting holes 447 are uniformly arranged in the circumferential direction of the first mounting hole 446. The first mounting holes 446 are respectively communicated with each second mounting hole 447, and the second mounting holes 447 are communicated with the corresponding second sliding grooves 444. The second end of the pressing rod 3 penetrates through the first mounting hole 446, and the second projection 32 is slidably connected with the second mounting hole 447.

Referring to fig. 7, fig. 7 is a perspective cross-sectional view of an upper sleeve according to an embodiment of the present invention. The first end of the upper sleeve 41 is provided with a third male screw connecting portion 411 on the outer side for being screwed with the connecting portion 11 of the socket 1. The upper sleeve 41 is provided with a first through hole 412 and a second through hole 413 inside, the first through hole 412 and the second through hole 413 are coaxially arranged, and the diameter of the first through hole 412 is larger than that of the second through hole 413. A stepped portion 414 is formed between the first through hole 412 and the second through hole 413. The stepped portion 414 is provided with six ridges 415, and the six ridges 415 are provided at regular intervals. The ridge 415 abuts against an end of the rotary inner cylinder 44. The top of the convex strip portion 415 is provided with an arc surface for reducing a contact area with the rotary inner cylinder 44 to reduce a frictional force therebetween. The second end of the upper sleeve 41 is provided with three first locking grooves 416 and three second locking grooves 417, the three first locking grooves 416 are annularly arranged on the side wall of the upper sleeve 41, and the opening direction of the first locking grooves 416 is upward. The second engaging groove 417 extends transversely through a sidewall of the upper sleeve 41, and the second engaging groove 417 and the first engaging groove 416 are circumferentially offset.

Referring to fig. 8 in conjunction with fig. 3, fig. 8 is a structural view of a fixing cover according to an embodiment of the present invention. The upper end portion of the fixed cover 43 is provided with a first boss 431, and the first boss 431 is provided with a rotational driving surface including a geometric shape other than a circle, such as a hexagonal shape, a triangular shape, a rectangular shape, or the like. The fixed cap and the upper sleeve 41 can be easily driven to rotate relative to the screw coupling hole 16 by an assembling and disassembling tool matched with the rotation driving surface. A hexagonal hole 432 is provided at the center of the first boss 431, and the hexagonal column of the pressing rod 3 is clearance-fitted with the hexagonal hole 432. The middle of the fixed cover 43 is provided with three second protrusions 433 and three third protrusions 434, the three second protrusions 433 are evenly spaced on the circumferential surface of the fixed cover 43, and the three third protrusions 434 are evenly spaced on the circumferential surface of the fixed cover 43. The second projection 433 and the third projection 434 are disposed in a staggered manner. The third boss 434 is provided with an inclined surface facing one side of the upper sleeve 41, the inclined surface being provided obliquely upward along a root of the third boss 434. The second protrusion 433 is configured to be connected to the first locking groove 416 of the upper sleeve 41, and the third protrusion 434 is configured to be connected to the second locking groove 417 of the upper sleeve 41. Six fourth bosses 435 are provided on the second end of the fixed cover 43. The fourth projection 435 projects downward in the vertical direction along the end surface of the fixed cover 43, and the fourth projection 435 extends in the horizontal direction radially toward the center of the fixed cover 43 to ensure abutment with the upper portion of the rotary inner cylinder 44. The fourth protrusion is provided with an arc surface to reduce a contact area with the rotary inner cylinder 44.

Referring to fig. 9 and 10, in combination with fig. 6, fig. 9 is a schematic structural view of the pressure lever, the rotary inner cylinder and the elastic member in the water storage state according to the embodiment of the present invention, and fig. 10 is a bottom view of the pressure lever and the rotary inner cylinder in the water storage state according to the embodiment of the present invention. When the overflow cover 2 is pressed down to vertically move the pressing rod 3 downwards, the first protrusion 31 moves downwards along the first sliding groove 442 until the lower portion of the first protrusion 31 abuts against the second inclined surface on the fourth protrusion 443, the first protrusion 31 moves towards the second sliding groove 444 along the second inclined surface, and at this time, the rotating inner cylinder 44 rotates around the central line thereof under the action of the first protrusion 31, so that the second sliding groove 444 of the rotating inner cylinder 44 is vertically opposite to the first protrusion 31 of the pressing rod 3, and the first protrusion 31 of the pressing rod 3 can slide into the second sliding groove 444. At this time, the second protrusion 32 of the pressing rod 3 is located below the rotating inner cylinder 44 and between the two second mounting holes 447, i.e., directly below the stopping portion 445. Under the resilience of the elastic member 45, the pressing rod 3 moves vertically upward, the second protrusion 32 of the pressing rod 3 abuts against the stopper 445 of the rotating inner cylinder 44, and the pressing rod 3 is fixed at a lower position. At this time, the first projection 31 of the pressing rod 3 is located above the second sliding groove 444, the overflow cover 2 is tightly attached to the pipe seat 1, and the drainage device is in a water storage state.

Referring to fig. 11 and 12, with reference to fig. 6, fig. 11 is a schematic structural view of the pressing rod, the rotating inner tube and the elastic member according to the embodiment of the present invention when the maximum stroke is pressed, and fig. 12 is a bottom view of the pressing rod and the rotating inner tube according to the embodiment of the present invention when the maximum stroke is pressed. When the overflow cover 2 is pressed down again in the water storage state, and the press rod 3 moves vertically downward again, the first projection 31 of the press rod 3 moves downward toward the second sliding groove 444 of the rotary inner cylinder 44 until the first projection 31 of the press rod 3 abuts against the second inclined surface of the fourth projection 443 of the rotary inner cylinder 44 and pushes the rotary inner cylinder 44 to rotate in the same direction again, so that the first projection 31 can slide into the second sliding groove 444. At this time, the first projection 31 of the pressing lever 3 vertically corresponds to the third projection 441 of the rotary inner cylinder 44, and the second projection 32 of the pressing lever 3 is located on the right side below the second mounting hole 447 of the rotary inner cylinder 44, that is, the second projection 32 and the second mounting hole 447 are circumferentially displaced. The elastic member 45 is at maximum compression and the plunger 3 is at maximum travel.

Referring to fig. 13 and 14, in combination with fig. 6, fig. 13 is a schematic structural view of the pressing rod, the rotary inner cylinder and the elastic member according to the embodiment of the present invention in a drainage state, and fig. 14 is a bottom view of the pressing rod and the rotary inner cylinder according to the embodiment of the present invention in a drainage state. Under the effect of the resilience force of the elastic member 45, the pressing rod 3 vertically rises, the first projection 31 of the pressing rod 3 abuts against the third projection 441 of the rotating inner cylinder 44, and the rotating inner cylinder 44 is pushed to rotate until the first projection 31 enters the first sliding slot 442 of the rotating inner cylinder 44. At this time, the second protrusion 32 of the pressing rod 3 vertically corresponds to the second mounting hole 447 of the rotating inner cylinder 44, so that the second protrusion 32 passes through the second mounting hole 447 to enter the second sliding groove 444 and move in the second sliding groove 444 until the first protrusion 31 of the pressing rod 3 abuts against the inner surface of the fixing cover 43, and the pressing rod 3 is fixed at an upper position. At this time, the overflow cover 2 is separated from the pipe base 1, and the drainage device is in a drainage state.

Claims

1. The utility model provides a push type drainage device which characterized in that: the overflow device comprises a pipe seat, an overflow cover, a pressure rod and a pressing transmission assembly, wherein the pipe seat is provided with a water inlet and a water outlet at two end parts respectively, and the overflow cover is arranged at the water inlet;

the pipe seat is internally provided with a threaded connecting hole and a drain hole, the drain hole is arranged on the circumferential direction of the threaded connecting hole, and the drain hole is respectively communicated with the water inlet and the water outlet;

the pressing transmission assembly is connected with the threaded connecting hole, and the first end of the pressing rod is connected with the overflow cover;

the pressing transmission assembly comprises an upper sleeve, a lower sleeve, a fixed cover, a rotary inner cylinder and an elastic piece, the upper sleeve is in threaded connection with the upper end part of the threaded connection hole, the lower sleeve is in threaded connection with the lower end part of the threaded connection hole, a drainage channel is formed between the outer peripheral wall of the upper sleeve and the inner peripheral wall of the tube seat, the drainage hole is communicated with the drainage channel, the fixed cover is connected with the upper end part of the upper sleeve, an accommodating space is formed between the inner part of the upper sleeve and the fixed cover, the rotary inner cylinder is rotatably arranged in the accommodating space, the elastic piece is arranged in the lower sleeve, the pressing rod sequentially penetrates through the fixed cover, the rotary inner cylinder and the upper sleeve, the first end of the pressing rod is in clearance fit with the fixed cover, the second end of the pressing rod is positioned in the lower sleeve, and the elastic piece is in butt joint between the second end of the pressing rod and the lower sleeve, a water outlet is arranged in the lower sleeve and communicated with the water outlet.

2. The push type drainage device of claim 1, wherein:

the connecting pipe is characterized in that a connecting piece and a plurality of connecting arms are arranged in the pipe seat, the threaded connecting holes are formed in the connecting piece, the connecting arms are arranged in the circumferential direction of the connecting piece, and the drain holes are formed between every two adjacent connecting arms.

3. The push type drainage device of claim 1, wherein:

the upper end of the fixed cover is provided with a first protruding part, and the first protruding part is provided with a rotary driving surface.

4. The push type drainage device of claim 1, wherein:

the middle part of the pressing rod is provided with a plurality of first lugs in the circumferential direction, the second end of the pressing rod is provided with a plurality of second lugs in the circumferential direction, and the first lugs and the second lugs are arranged in a staggered mode.

5. The push type drainage device of claim 4, wherein:

a plurality of third convex blocks are annularly arranged on the inner side of the first end of the rotating inner cylinder, a first sliding groove is formed between every two adjacent third convex blocks, the first sliding groove is arranged along the height direction of the rotating inner cylinder, the upper end and the lower end of each third convex block are respectively provided with a first inclined surface, and the first inclined surfaces are inclined downwards along the rotating direction of the rotating inner cylinder;

the inboard hoop of second end of rotatory inner tube is provided with a plurality of fourth lugs, adjacent two form the second spout between the fourth lug, the second spout is followed the direction of height setting of rotatory inner tube, first spout with second spout dislocation set, the upper portion of fourth lug is provided with the second inclined plane, the second inclined plane is followed the rotation direction tilt up of rotatory inner tube, first lug respectively with first spout second spout sliding connection, the second lug with second spout sliding connection.

6. The push type drainage device of claim 5, wherein:

the end part of the second end of the rotary inner cylinder is provided with a stopping part, the stopping part is provided with a first mounting hole and a plurality of second mounting holes, the plurality of second mounting holes are arranged in the circumferential direction of the first mounting hole respectively, the first mounting holes are communicated with the second mounting holes respectively, the second mounting holes are communicated with the corresponding second sliding grooves, the second end of the pressing rod penetrates through the first mounting holes, and the second lug is connected with the second mounting holes in a sliding mode.

7. The push type drainage device of claim 3, wherein:

a second protruding part and a third protruding part are annularly arranged in the middle of the fixed cover, the second protruding part and the third protruding part are arranged in a vertically staggered mode, an inclined part is arranged on one side, facing the upper sleeve, of the third protruding part, and the inclined part is arranged in an upward inclined mode along the root of the third protruding part;

go up telescopic second end and be provided with first draw-in groove and second draw-in groove, first draw-in groove sets up go up telescopic lateral wall and upwards opening, the second draw-in groove transversely runs through go up telescopic lateral wall, the second bellying with first draw-in groove is connected, the third bellying with the second draw-in groove is connected.

8. The push type drainage device of claim 7, wherein:

and a plurality of fourth bulges are arranged on the lower end part of the fixed cover, the fourth bulges downwards protrude along the end surface of the fixed cover, and the fourth bulges are adjacent to the rotary inner cylinder.

9. The push type drainage device of claim 1, wherein:

the overflow lid is provided with the sealing strip in the hoop, the sealing strip with the inside wall butt of tube socket.