CN219100243U - Toilet flushing device - Google Patents

Abstract

The utility model discloses a toilet flushing device, which comprises: the water inlet valve is used for connecting an external water supply pipeline; the drain valve is provided with a connecting pipeline communicated with the water inlet valve; the spray head is arranged on the drain valve and communicated with the connecting pipeline to spray water flow to the water inlet channel; the control mechanism is arranged on the water inlet valve or the water outlet valve and is used for opening or delaying to cut off the water flow of the connecting pipeline so as to control the water spraying time of the spray head. The toilet flushing device with the structure has the advantages that the water flow is sprayed out through the spray head to break up excrement into small pieces, the blocking phenomenon of the toilet is reduced, and the control mechanism is additionally arranged so as to conveniently regulate and control the water spraying time of the spray head, so that the water saving performance of the toilet is improved.

Description

Toilet flushing device

Technical Field

The utility model relates to the technical field of toilets, in particular to a toilet flushing device.

Background

Referring now to fig. 1, the existing toilet generally includes a bowl 100, a water inlet valve 200, a water discharge valve 300, a water tank 400, a water inlet passage 500, and a water discharge passage. One end of the water inlet channel is communicated with the water tank, the other end of the water inlet channel is communicated with the urinal, the water drainage channel is communicated with the urinal, the drain valve and the water inlet valve are arranged in the water tank, the water inlet valve is used for feeding water into the water tank, and the drain valve is used for opening a water outlet of the water tank to introduce water into the water inlet channel. When people need to flush, a certain amount of water is introduced into the urinal through the water inlet channel, and then under the action of siphonage, excrement is discharged from the water outlet channel to complete the process of flushing the toilet.

However, when the existing closestool encounters excrement with a large volume, the phenomenon that the excrement easily blocks a drainage channel is caused, and water needs to be fed for many times, so that the waste of water resources is caused.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a toilet flushing device, which sprays water flow through the spray head to break up excrement into small pieces, reduces the blocking phenomenon of the toilet, and is convenient for adjusting and controlling the water spraying time of the spray head by adding the control mechanism, thereby being beneficial to improving the water saving performance of the toilet.

According to an embodiment of the present utility model, a toilet flushing device includes: the water inlet valve is used for connecting an external water supply pipeline; the drain valve is provided with a connecting pipeline communicated with the water inlet valve; the spray head is arranged on the drain valve and communicated with the connecting pipeline to spray water flow to the water inlet channel; the control mechanism is arranged on the water inlet valve or the water outlet valve and is used for opening or delaying to cut off the water flow of the connecting pipeline so as to control the water spraying time of the spray head.

The toilet flushing device provided by the embodiment of the utility model has at least the following beneficial effects: when the toilet flushing device is used, the external water supply pipeline supplies water to the connecting pipeline through the water inlet valve, so that the spray head can spray water to the water inlet channel, excrement is dispersed into small pieces by means of larger water flow impact on one hand, the phenomenon that the excrement blocks the water outlet channel is avoided, the water discharge amount of the water inlet channel is increased on the other hand, the water discharge pipeline is facilitated to be accelerated to form a siphon effect, the toilet flushing time is shortened, and the flushing effect is cleaner. Wherein, in the shower nozzle in-process of spraying rivers, the control mechanism delays the rivers of cutting off connecting line in order to control the water spray time of shower nozzle to make rivers can stop in certain time voluntarily, be favorable to improving the water conservation performance of closestool.

In some embodiments of the present utility model, the control mechanism is a first control mechanism linked with the water inlet valve, the first control mechanism includes a cylinder, a first piston, a second piston, a first elastic member and a water draining structure, the cylinder is provided with an inner cavity extending in a vertical direction, the first piston is connected with the second piston, the second piston separates the inner cavity into a first water storage area and a second water storage area distributed up and down, the first water storage area is communicated with a water outlet end of the water inlet valve, the water draining structure is used for adjusting a water outlet amount of the second water storage area, the cylinder is provided with a first channel, the first channel is communicated with the first water storage area and the connecting pipeline, and in a process of draining water into the first water storage area through the water inlet valve, the water draining structure can unload water in the second water storage area, so that the second piston drives the first piston to move to the first channel under the action of water pressure of the first water storage area, and the first channel is in contact with the second piston.

In some embodiments of the present utility model, the water draining structure includes a switch member and a plurality of water draining holes with different diameters, the water draining holes are disposed at the lower end of the cylinder, each water draining hole is capable of communicating the second water storage area with the water tank, the switch member is disposed at the lower end of the cylinder, and the switch member is used for selectively opening any one of the water draining holes.

In some embodiments of the present utility model, the first piston includes a mounting member, a partition plate, and a coaming member, wherein an outer wall of the coaming member is attached to an inner wall of the cylinder, the partition plate is connected between the mounting member and the coaming member, and the partition plate, the coaming member, and the cylinder are connected to each other, so that at least two connecting channels communicating with the first water storage area are defined.

In some embodiments of the present utility model, the connecting pipeline includes a first pipeline and a second pipeline that are mutually communicated, the control mechanism is a second control mechanism that links the drain valve, the second control mechanism includes a main body, a water sealing member, a second elastic member and a connecting rod assembly, one end of the first pipeline is communicated with the water outlet end of the water inlet valve, a first installation cavity is provided between the main body and the second pipeline, one end of the second pipeline, which is far away from the main body, is communicated with the spray head, the water sealing member is movably arranged in the first installation cavity, the water sealing member separates the first installation cavity into a first cavity and a second cavity, the second cavity is communicated with the first pipeline and the second pipeline, the main body is provided with a pressure relief structure for changing the pressure of the first cavity, the connecting rod assembly is linked with the pressure relief structure, so that the pressure relief structure can reduce the pressure of the first cavity to drive the water sealing member to move to open the second cavity, and the second elastic member is linked with the connecting rod assembly to reset.

In some embodiments of the present utility model, the second control mechanism further includes a damping member, the main body has a second installation cavity accommodating the damping member, the link assembly includes a moving rod, a connecting rod, and a lever member, the moving rod is accommodated in the second installation cavity in a vertical direction, an upper end of the moving rod is rotatably connected to the lever member through the connecting rod, the lever member is swingably disposed at the drain valve around a fixed point, the drain valve is provided with a button for driving the lever member to swing, the moving rod is penetrated through the damping member, the damping member is used for generating a resistance for blocking movement of the moving rod, the second elastic member is disposed between the moving rod and an inner top wall of the main body, and when the button drives the lever member to swing, the moving rod moves upward to compress the second elastic member, and the pressure relief structure can reduce the pressure of the first chamber.

In some embodiments of the present utility model, the pressure relief structure includes a pressure relief hole and a blocking member, the pressure relief hole communicates with the first chamber and the second installation cavity, the blocking member is disposed at a lower end of the moving rod, and the moving rod drives the blocking member to move to open or close the pressure relief hole.

In some embodiments of the present utility model, the main body includes a barrel and an end cap, the inner wall of the barrel encloses the second installation cavity, the end cap is in threaded connection with the upper end of the barrel, the moving rod is provided with a flat plate portion, and the second elastic member is abutted between the inner top wall of the end cap and the flat plate portion.

In some embodiments of the present utility model, the drain valve is provided with a mounting channel and a plug hole, the mounting channel is communicated with the connecting pipeline, the plug hole is communicated with the mounting channel, the spray head is rotatably accommodated in the mounting channel, the drain valve further comprises a locking piece, the locking piece is provided with a plug plate capable of penetrating through the plug hole, and the plug plate is pressed against the outer wall of the spray head to lock the deflection angle of the spray head relative to the drain valve.

In some embodiments of the present utility model, the spray head includes a cylindrical portion communicating with the mounting channel, the cylindrical portion is circumferentially distributed with a plurality of first latches located at the same height along an outer peripheral wall thereof, and a side of the plug board facing the plug hole is provided with a plurality of second latches, and the second latches are clamped between two adjacent first latches to limit a deflection angle of the spray head.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a cross-sectional view of an embodiment of a toilet flush device of the present utility model assembled to a toilet;

FIG. 2 is a schematic diagram of the embodiment of FIG. 1;

FIG. 3 is an internal cross-sectional view of the first control mechanism of FIG. 2;

FIG. 4 is a schematic diagram of the first piston and the second piston in FIG. 3;

FIG. 5 is an internal cross-sectional view of the sprayer head and drain valve of the embodiment of FIG. 1;

FIG. 6 is a partially exploded view of the sprayer and drain valve of FIG. 5;

FIG. 7 is an enlarged schematic view at A in FIG. 6;

FIG. 8 is a schematic view of another embodiment of a toilet flushing device according to the present utility model;

FIG. 9 is an internal cross-sectional view of the drain valve, spray head, and second control mechanism of the embodiment of FIG. 8;

fig. 10 is a partial enlarged view at B in fig. 9.

In the figure: urinal 100, water inlet valve 200, drain valve 300, mounting channel 301, plug hole 302, click through hole 303, connection pipe 310, first pipe 311, second pipe 312, button 320, lock 330, plug plate 331, second latch 332, elastic protrusion 333, mounting through hole 334, tank 400, water inlet channel 500, shower head 600, cylinder 610, first latch 611, annular plate 620, first control mechanism 700, cylinder 710, first water reservoir 711, second water reservoir 712, drain hole 713, first channel 714, second channel 715, first piston 720, mounting member 721, partition 722, enclosure plate 723, connection channel 724, second piston 730, partition 731, annular groove 732, first elastic member 740, switch 750, second control mechanism 800, main body 810, first mounting cavity 811, pressure release hole 812, second mounting cavity 813, barrel 814, 815, seal 820, fixture 821, second elastic member 830, link assembly 840, moving rod 841, connecting rod 843, seal 860, and damper seal 860.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, 2 and 8, a toilet flushing device includes: a water inlet valve 200 for connecting an external water supply line; a drain valve 300 provided with a connection pipe 310 communicating with the water inlet valve 200; the nozzle 600 is arranged on the drain valve 300, and the nozzle 600 is communicated with the connecting pipeline 310 to spray water flow to the water inlet channel 500; and a control mechanism provided to the water inlet valve 200 or the water outlet valve 300 for opening or delaying the water flow of the connection pipe 310 to control the water spraying time of the spray head 600.

The toilet flushing device with the above structure is characterized in that when in use, an external water supply pipeline supplies water to the connecting pipeline 310 through the water inlet valve 200, so that the spray head 600 can spray water to the water inlet channel 500, on one hand, excrement is dispersed into small pieces by means of larger water flow impact, thereby avoiding the phenomenon that the excrement blocks the water outlet channel, on the other hand, the water discharge of the water inlet channel 500 is increased, accelerating the formation of siphon effect of the water discharge pipeline, and further shortening the toilet flushing time, and the flushing effect is cleaner. In the process of spraying water flow by the spray head 600, the control mechanism delays and cuts off the water flow of the connecting pipeline 310 to control the water spraying time of the spray head 600, so that the water flow can be automatically stopped within a certain time, and the water saving performance of the toilet bowl is improved.

Referring to fig. 1 to 4, in some embodiments of the present utility model, the control mechanism is a first control mechanism 700 linked with the water inlet valve 200, the first control mechanism 700 includes a cylinder 710, a first piston 720, a second piston 730, a first elastic member 740, and a drainage structure, the cylinder 710 is provided with an inner cavity extending in a vertical direction, the first piston 720 is connected with the second piston 730, the second piston 730 divides the inner cavity into a first water storage area 711 and a second water storage area 712 distributed up and down, the first water storage area 711 is communicated with a water outlet end of the water inlet valve 200, the drainage structure is used for adjusting a water outlet amount of the second water storage area 712, the cylinder 710 is provided with a first channel 714, the first channel 714 is communicated with the first water storage area 711 and the connection pipeline 310, and during the process of draining the water into the first water storage area 711, the drainage structure can unload water in the second water storage area 712, so that the second piston 730 drives the first piston 720 to move to the first channel 714 under the action of water pressure of the first water storage area 711, and the first piston 730 is driven to reset by the second piston 730.

Specifically, when the water flow is required to be sprayed from the spray head 600, the external water supply pipeline is used for feeding water to the first water storage area 711 through the water inlet valve 200, and the water flows into the connecting pipeline 310 through the first channel 714, so that the effect of supplying water to the spray head 600 is achieved, meanwhile, the water discharge structure is used for discharging the water in the second water storage area 712, so that the second piston 730 drives the first piston 720 to gradually move to block the first channel 714 under the action of the water pressure of the first water storage area 711, the effect of delaying the water supply of the connecting pipeline 310 is achieved, and the spray head 600 can automatically stop spraying water within a certain time. And when the water supply valve 200 stops supplying water, the second piston 730 is restored to the initial position by the first elastic member 740. It will be appreciated that the greater the amount of water discharged from the second water storage area 712 by the water discharge structure, the smaller the resistance of the second piston 730 to the second water storage area 712, so that the faster the second piston 730 moves, and the shorter the first piston 720 blocks the first channel 714, so that people can regulate the water spraying time of the spray head 600 by regulating the water output of the second water storage area 712 by the water discharge structure.

In order to improve the water-blocking effect of the second piston 730, referring to fig. 4, the second piston 730 has a partition 731 facing the first piston 720, the upper surface of the partition 731 partitions the inner chamber into a first water storage area 711 and a second water storage area 712 which are vertically distributed, an annular groove 732 is formed in the side wall of the second piston 730, and a seal ring which is adhered to the inner wall of the cylinder 710 is disposed in the annular groove 732.

Referring to fig. 1 to 3, in some embodiments of the present utility model, the drain structure includes a switching member 750 and a plurality of drain holes 713 having different diameters, the drain holes 713 are provided at a lower end of the cylinder 710, each drain hole 713 is capable of communicating the second water storage area 712 with the water tank 400, the switching member 750 is provided at a lower end of the cylinder 710, and the switching member 750 is used to selectively open any one of the drain holes 713. Specifically, the larger the aperture of the drain hole 713, the larger the drainage amount of the second water storage area 712, the smaller the resistance of the second water storage area 712 to the second piston 730, so that the faster the second piston 730 moves, and thus, people can adjust the water outlet amount of the second water storage area 712 by selecting the drain hole 713 with the appropriate aperture, thereby adjusting the water spraying time of the spray head 600. Wherein, the switch 750 adopts a knob type switch, and one opens any one of the drain holes 713 by rotating the switch 750 by an angle. In some embodiments, the drainage structure may be replaced by a plurality of drainage pipelines communicating the second water storage area 712 and the water tank 400, and each drainage pipeline is provided with a one-way valve, so that people can adjust the water yield of the second water storage area 712 by opening the number of one-way valves.

Referring to fig. 1 to 3, in some embodiments of the present utility model, the cylinder 710 is further provided with a second passage 715 above the first passage 714, and the second passage 715 communicates with the first water storage region 711 and the water tank 400. Specifically, when a person flushes the toilet, water in the water tank 400 flows into the water inlet channel 500 with the drain valve 300 opened, and the water inlet valve 200 discharges water to the first water storage area 711, water in the first water storage area 711 flows into the connection pipe 310 through the first channel 714 to supply water to the shower head 600, water in the second water storage area 712 flows into the water tank 400 through the drain hole 713, and the second piston 730 is driven to move by the water pressure of the first water storage area 711. In this process, the second passage 715 is always blocked by the first piston 720, so that the water in the first water storage area 711 flows out of the first passage 714 only, and after the first piston 720 moves to block the first passage 714, the connection pipe 310 stops supplying water to the spray head 600, at this time, the first piston 720 does not block the second passage 715 any more, so that the water in the first water storage area 711 flows into the water tank 400 again. When the water level of the water tank 400 reaches a certain height, the water inlet valve 200 stops supplying water, the second elastic member 830 resets to drive the second piston 730 to reset upwards, so that the water in the first water storage area 711 is continuously discharged into the water tank 400, and part of the water in the water tank 400 flows into the second water storage area 712 again, so that the second water storage area 712 can store a certain water amount again to provide resistance for the next movement of the second piston 730.

Referring to fig. 4, in some embodiments of the present utility model, the first piston 720 includes a mounting member 721, a partition plate 722, and a surrounding plate 723, the outer wall of the surrounding plate 723 is fitted to the inner wall of the cylinder 710, the partition plate 722 is connected between the mounting member 721 and the surrounding plate 723, and the three define at least two connection passages 724 communicating with the first water storage region 711.

Specifically, the water of the water inlet valve 200 presses the second piston 730 through the connection passage 724, and the coaming member 723 is fitted to the inner wall of the cylinder 710 so that the coaming member 723 can move to close the first passage 714. It will be appreciated that the mounting member 721, the partition plate 722 and the coaming member 723 are integrally injection molded, which is advantageous in simplifying the structure of the first piston 720. It should be noted that the mounting member 721 is bolted to the upper end of a connecting rod, and the lower end of the connecting rod is connected to the second piston 730, so that the second piston 730 can move the first piston 720.

Referring to fig. 8 to 10, in some embodiments of the present utility model, the connection pipe 310 includes a first pipe 311 and a second pipe 312 which are communicated with each other, the control mechanism is a second control mechanism 800 for linking the drain valve 300, the second control mechanism 800 includes a main body 810, a water sealing member 820, a second elastic member 830 and a link assembly 840, one end of the first pipe 311 is communicated with the water outlet end of the water inlet valve 200, a first installation cavity 811 is provided between the main body 810 and the second pipe 312, one end of the second pipe 312, which is far from the main body 810, is communicated with the spray head 600, the water sealing member 820 is movably disposed in the first installation cavity 811, the water sealing member 820 divides the first installation cavity 811 into a first cavity and a second cavity, the second cavity is communicated with the first pipe 311 and the second pipe 312, the main body 810 is provided with a pressure releasing structure for changing the pressure of the first cavity, the link assembly 840 is linked with the pressure releasing structure so that the pressure of the first cavity can be reduced to drive the water sealing member 820 to move to open the second cavity, and the second elastic member 830 and the link assembly 840 are linked to reset.

Specifically, a fixing member 821 is disposed between the water sealing member 820 and the second pipeline 312, a second chamber is defined between the fixing member 821 and the water sealing member 820, the fixing member 821 is provided with a water through hole for communicating the first pipeline 311 and the second pipeline 312, and the water sealing member 820 is pressed onto the fixing member 821 to seal the water through hole when in an initial position. When the spray head 600 is required to spray water, the water inlet valve 200 is used for feeding water into the first pipeline 311, the connecting rod assembly 840 is connected with the pressure relief structure to enable the pressure relief structure to reduce the pressure of the first chamber, and the pressure of the second chamber is higher than the pressure of the first chamber at the moment, so that the water pressure of the second chamber can push the water sealing member 820 to move upwards to open the water through hole, and water can flow into the second pipeline 312 to supply water to the spray head 600. Then, the second elastic member 830 drives the connecting rod assembly 840 to gradually reset, so that the pressure of the first chamber is replenished by the pressure release structure, and the pressure of the first chamber is greater than the pressure of the second chamber at this time, so that the pressure of the first chamber can drive the water sealing member 820 to press down on the fixing member 821, and then the water through hole is plugged again, so as to achieve the effect of delaying to cut off the water flow of the second pipeline 312. The greater the elastic potential energy stored in the second elastic member 830, the faster the connecting rod assembly 840 resets, so that the pressure of the first chamber is supplied by the pressure release structure, and the shorter the time for supplying water to the second pipeline 312 is, so that people can regulate the water supply time of the second pipeline 312 by adjusting the elastic potential energy of the second elastic member 830. It can be appreciated that, in order to improve the plugging effect, the water sealing member 820 is made of silica gel or plastic material, so that the water sealing member 820 can be deformed by force to better plug the water through hole.

Referring to fig. 8 to 10, in some embodiments of the present utility model, the second control mechanism 800 further includes a damper 860, the body 810 has a second mounting chamber 813 accommodating the damper 860, the link assembly 840 includes a moving lever 841, a connecting lever 842, and a lever 843, the moving lever 841 is vertically accommodated in the second mounting chamber 813, an upper end of the moving lever 841 is rotatably connected to the lever 843 through the connecting lever 842, the lever 843 is swingably provided around a fixed point to the drain valve 300, the drain valve 300 is provided with a button 320 for driving the lever 843 to swing, the moving lever 841 is provided to pass through the damper 860, the damper 860 is for generating a resistance to the movement of the moving lever 841, the second elastic member 830 is provided between the moving lever 841 and an inner top wall of the body 810, and the moving lever 841 moves upward to compress the second elastic member 830 when the button 320 drives the lever 843 to swing, and enables the pressure relief structure to reduce the pressure of the first chamber.

Specifically, when the button 320 of the drain valve 300 is pressed, the lever 843 is forced to swing, so that the connecting rod 842 drives the moving rod 841 to move upwards and compress the second elastic member 830, and the pressure relief structure reduces the pressure of the first chamber. When the button 320 of the drain valve 300 is reset, the second elastic member 830 pushes the moving rod 841 to be reset downward, so that the pressure relief structure re-supplies the pressure of the first chamber. It will be appreciated that the damping member 860 has damping oil inside, and the moving rod 841 is subjected to resistance of the damping oil during movement, which is beneficial to improving the stability of movement of the moving rod 841.

Referring to fig. 8 to 10, in some embodiments of the present utility model, the pressure relief structure includes a pressure relief hole 812 and a blocking member 850, the pressure relief hole 812 communicates with the first chamber and the second mounting cavity 813, the blocking member 850 is disposed at a lower end of a moving rod 841, and the moving rod 841 drives the blocking member 850 to move to open or close the pressure relief hole 812. Specifically, when the moving rod 841 moves upward, the blocking piece 850 opens the pressure release hole 812 so that the fluid in the first chamber enters the second accommodating chamber, thereby reducing the pressure of the first chamber; when the second elastic member 830 is reset to drive the moving rod 841 to move downwards, the blocking member 850 pushes the fluid in the second installation cavity 813 to flow into the first chamber again and block the pressure release hole 812, so that the pressure of the first chamber is increased. In some embodiments, the pressure relief structure may be replaced by a linkage of a push switch and a pressure relief pipeline with a check valve, and the check valve opens the pressure relief pipeline by touching the push switch with the moving rod 841, so that the effect of unloading the pressure of the first chamber can be achieved.

Referring to fig. 8 to 10, in some embodiments of the present utility model, the main body 810 includes a barrel 814 and an end cap 815, the inner wall of the barrel 814 encloses a second installation cavity 813, the end cap 815 is screw-coupled to the upper end of the barrel 814, the moving rod 841 is provided with a flat plate portion, and the second elastic member 830 is abutted between the inner top wall of the end cap 815 and the flat plate portion. Specifically, people can adjust the number of turns of the end cover 815 screwed to the barrel 814, thereby adjusting the height between the flat plate portion and the end cover 815, so as to change the height space for the second elastic member 830 to deform, and further adjust and control the water supply time of the second pipeline 312 by changing the elastic potential energy that the second elastic member 830 can store, and the adjustment is relatively simple.

Referring to fig. 2 and 5 to 7, in some embodiments of the present utility model, the drain valve 300 is provided with a mounting channel 301 and a plug hole 302, the mounting channel 301 is communicated with the connecting pipeline 310, the plug hole 302 is communicated with the mounting channel 301, the spray head 600 is rotatably accommodated in the mounting channel 301, the drain valve 300 further comprises a locking piece 330, the locking piece 330 is provided with a plug plate 331 capable of penetrating through the plug hole 302, and the plug plate 331 abuts against the outer wall of the spray head 600 to lock the deflection angle of the spray head 600 relative to the drain valve 300.

Specifically, a proper deflection angle of the spray head 600 is selected according to the direction of the water inlet channel 500, and then the locking piece 330 is pressed against the outer wall of the cylinder 610, so as to achieve the effect of quickly locking the deflection angle of the spray head 600. Wherein, the cooperation of shower nozzle 600 and locking piece 330 is favorable to people to adjust the installation angle of shower nozzle 600 according to the structural layout of different water inlet channel 500 to the suitable rivers injection angle of shower nozzle 600 is selected in the convenience, thereby improves the suitability of product in order to adapt to different grade type closestool. It can be appreciated that after the locking piece 330 abuts against the spray head 600, the locking piece 330 can be fixed by bolts or clamping, or can be quickly fixed on the drain valve 300 by magnetic attraction. Specifically, the locking part 330 is provided with an elastic protrusion 333 and a mounting through hole 334, the elastic protrusion 333 is connected to a hole wall of the mounting through hole 334, the mounting through hole 334 forms a space for the elastic protrusion 333 to deform, the drain valve 300 is provided with a locking through hole 303, and the elastic protrusion 333 is inserted into the locking through hole 303 to fix the locking part 330 in the drain valve 300.

Referring to fig. 2 and 5 to 7, in some embodiments of the present utility model, the spray head 600 includes a cylindrical portion 610 communicating with the mounting channel 301, the cylindrical portion 610 is circumferentially provided with a plurality of first latches 611 located at the same height along an outer peripheral wall thereof, a side of the plug 331 facing the plug hole 302 is provided with a plurality of second latches 332, and the second latches 332 are clamped between two adjacent first latches 611 to limit a deflection angle of the spray head 600.

Specifically, in use, a suitable deflection angle of the cylindrical portion 610 is selected, and then the plug plate 331 is inserted into the insertion hole 302, so that the second latch 332 is engaged between two adjacent first latches 611, thereby rapidly locking the deflection angle of the cylindrical portion 610. Wherein, through the cooperation of the first latch 611 and the second latch 332, the installation angle of the cylinder portion 610 is advantageously and accurately adjusted. In some embodiments, the plurality of first latches 611 at the same height are a plurality of sets of latches, the sets of latches are provided with a plurality of sets of latches, the sets of latches are distributed along the axial direction of the cylindrical portion 610 at intervals, an annular plate 620 is disposed between two adjacent sets of latches, and the plug plate 331 abuts against two adjacent annular plates 620 to limit the axial movement of the cylindrical portion 610, so that the mounting height of the cylindrical portion 610 can be adjusted by the plug plate 331 abutting against the annular plates 620 at different heights, so that the spray head 600 can spray water toward the water inlet channel 500 better.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A toilet flush apparatus comprising:

a water inlet valve (200) for connecting an external water supply line;

a drain valve (300) provided with a connecting pipeline (310) communicated with the water inlet valve (200);

a spray head (600) arranged on the drain valve (300), wherein the spray head (600) is communicated with the connecting pipeline (310) to spray water flow to the water inlet channel (500);

the control mechanism is arranged on the water inlet valve (200) or the water outlet valve (300) and is used for opening or delaying to cut off the water flow of the connecting pipeline (310) so as to control the water spraying time of the spray head (600).

2. The toilet flush device of claim 1, wherein:

the control mechanism is a first control mechanism (700) which is linked with the water inlet valve (200), the first control mechanism (700) comprises a cylinder body (710), a first piston (720), a second piston (730), a first elastic piece (740) and a water draining structure, the cylinder body (710) is provided with an inner cavity which is arranged in a vertical extending mode, the first piston (720) is connected with the second piston (730), the inner cavity is divided into a first water storage area (711) and a second water storage area (712) which are distributed up and down by the second piston (730), the first water storage area (711) is communicated with the water outlet end of the water inlet valve (200), the water draining structure is used for adjusting the water outlet amount of the second water storage area (712), the cylinder body (710) is provided with a first channel (714), the first channel (714) is communicated with the first water storage area (711) and the connecting pipeline (310), the water in the water inlet valve (200) is separated into the first water storage area (711) along the first water storage area (711), the water draining structure can drive the first channel (712) to move under the first water storage area (711), and the first elastic member (740) is in contact with the second piston (730) to drive the second piston (730) to return.

3. A toilet flushing device as set forth in claim 2 wherein:

the water draining structure comprises a switch piece (750) and a plurality of water draining holes (713) with different diameters, the water draining holes are formed in the lower end of the cylinder body (710), each water draining hole (713) can be communicated with the second water storage area (712) and the water tank (400), the switch piece is arranged at the lower end of the cylinder body (710), and the switch piece (750) is used for selectively opening any one water draining hole (713).

4. A toilet flushing device as set forth in claim 2 wherein:

the first piston (720) comprises a mounting part (721), a partition plate (722) and a coaming part (723), wherein the outer wall of the coaming part (723) is attached to the inner wall of the cylinder body (710), the partition plate (722) is connected between the mounting part (721) and the coaming part (723), and at least two connecting channels (724) communicated with the first water storage area (711) are defined by the partition plate (722).

5. The toilet flush device of claim 1, wherein:

the connecting pipeline (310) comprises a first pipeline (311) and a second pipeline (312) which are mutually communicated, the control mechanism is a second control mechanism (800) which is linked with the drain valve (300), the second control mechanism (800) comprises a main body (810), a water sealing piece (820), a second elastic piece (830) and a connecting rod assembly (840), one end of the first pipeline (311) is communicated with the water outlet end of the water inlet valve (200), a first mounting cavity (811) is arranged between the main body (810) and the second pipeline (312), one end of the second pipeline (312) far away from the main body (810) is communicated with the spray head (600), the water sealing piece (820) is movably arranged in the first mounting cavity (811), the water sealing piece (820) divides the first mounting cavity (811) into a first cavity and a second cavity, the second cavity is communicated with the first pipeline (311) and the second pipeline (312), the main body (810) is provided with a pressure relief structure for changing the first cavity (810), the pressure relief structure can be driven by the connecting rod assembly (840) to move, the pressure relief structure can be relieved, the second elastic piece (830) is linked with the connecting rod assembly (840) to drive the connecting rod assembly (840) to reset.

6. The toilet flush device of claim 5, wherein:

the second control mechanism (800) further comprises a damping member (860), the main body (810) is provided with a second mounting cavity (813) for accommodating the damping member (860), the connecting rod assembly (840) comprises a moving rod (841), a connecting rod (842) and a lever member (843), the moving rod (841) is accommodated in the second mounting cavity (813) along the vertical direction, the upper end of the moving rod (841) is rotationally connected with the lever member (843) through the connecting rod (842), the lever member (843) is arranged on the drain valve (300) in a swinging mode around a fixed point, the drain valve (300) is provided with a button (320) for driving the lever member (843) to swing, the moving rod (841) is arranged on the damping member (860) in a penetrating mode, the damping member (860) is used for generating resistance for blocking the moving of the moving rod (841), the second elastic member (830) is arranged between the moving rod (841) and the inner button (843), the second elastic member (843) is arranged on the top wall (843), and the second elastic member (843) is driven to move upwards, and the pressure relief structure can be compressed.

7. The toilet flush device of claim 6, wherein:

the pressure relief structure comprises a pressure relief hole (812) and a plugging piece (850), the pressure relief hole (812) is communicated with the first chamber and the second mounting cavity (813), the plugging piece (850) is arranged at the lower end of the movable rod (841), and the movable rod (841) drives the plugging piece (850) to move so as to open or close the pressure relief hole (812).

8. The toilet flush device of claim 6, wherein:

the main part (810) is including stack shell (814) and end cover (815), the inner wall of stack shell (814) encloses second installation cavity (813), end cover (815) threaded connection in the upper end of stack shell (814), movable rod (841) are equipped with dull and stereotyped portion, second elastic component (830) butt in interior roof of end cover (815) with between dull and stereotyped portion.

9. The toilet flush device of claim 1, wherein:

the utility model discloses a shower nozzle, including connecting pipe (600) and shower nozzle, including connecting pipe (310) and shower nozzle, drain valve (300) are equipped with installation passageway (301) and spliced eye (302), installation passageway (301) intercommunication connecting pipe (310), spliced eye (302) intercommunication installation passageway (301), shower nozzle (600) rotationally holding in installation passageway (301), drain valve (300) still include locking piece (330), locking piece (330) are equipped with can wear to locate spliced eye (331) of 302, spliced eye (331) support press in the outer wall of shower nozzle (600) with the locking shower nozzle (600) are relative the deflection angle of drain valve (300).

10. The toilet flush device of claim 9, wherein:

the spray head (600) comprises a cylinder part (610) communicated with the mounting channel (301), a plurality of first clamping teeth (611) located at the same height are circumferentially distributed on the cylinder part (610) along the peripheral wall of the cylinder part, a plurality of second clamping teeth (332) are arranged on one side, facing the plug hole (302), of the plug board (331), and the second clamping teeth (332) are clamped between two adjacent first clamping teeth (611) to limit the deflection angle of the spray head (600).

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