CN218990346U - Flushing valve - Google Patents

Abstract

The application relates to a flushing valve, which comprises a valve body, a valve core and a driving motor, wherein the valve body is provided with a water inlet, a first water outlet and a second water outlet; the valve core is rotatably arranged in the valve body, and a water through hole is formed in the side wall of the valve core; the driving motor is connected with the valve core and used for controlling the valve core to rotate so that the first water outlet is opened when the water through hole is communicated with the first water outlet, and the side wall of the valve core closes the second water outlet; and the driving motor is also used for controlling the valve core to rotate so that the second water outlet is opened when the water through hole is communicated with the second water outlet, and the side wall of the valve core closes the first water outlet. The water outlet flow of the flushing valve is not affected by water pressure, even if the water pressure in the valve body is low, water can flow from the water inlet to the first water outlet or the second water outlet as much as possible, the flow of flushing water is not reduced, and the flushing action of the flushing valve can be completed under the condition of low water pressure.

Description

Flushing valve

Technical Field

The present application relates to the field of valve devices, and more particularly to a flush valve.

Background

The toilet is generally provided with a flushing valve comprising a water inlet and a water outlet, and the flushing valve in the prior art generally adopts a mode of up-and-down movement of a diaphragm structure to control the opening or closing of the water inlet. When the diaphragm structure is lifted upwards, the water inlet can be opened, so that water flows to the water outlet, and flushing is realized; when the diaphragm structure resets downwards, the water inlet can be closed.

However, when the flushing valve is used, the influence of water pressure is large, if the water pressure is too low, the pressure difference between the upper part and the lower part of the diaphragm structure is insufficient, the diaphragm structure cannot be lifted completely, so that the water flow flowing from the water inlet to the water outlet is small, and the flushing requirement cannot be met.

Disclosure of Invention

The application provides a flushing valve, can solve the problem that flushing valve can't satisfy the flushing requirement under the condition of low water pressure among the prior art.

The embodiment of the application provides a flush valve, including: the valve body is provided with a water inlet, a first water outlet and a second water outlet;

the valve core is rotatably arranged in the valve body, and a water through hole is formed in the side wall of the valve core;

the driving motor is connected with the valve core and used for controlling the valve core to rotate so as to open the first water outlet when the water through hole is communicated with the first water outlet, and the side wall of the valve core closes the second water outlet;

and the driving motor is also used for controlling the valve core to rotate so as to open the second water outlet when the water through hole is communicated with the second water outlet, and the side wall of the valve core closes the first water outlet.

In one possible design, the flushing valve further comprises a valve sleeve, the valve sleeve is installed in the valve body, a first communication port and a second communication port are arranged on the side wall of the valve sleeve, the first communication port is communicated with the first water outlet, and the second communication port is communicated with the second water outlet;

the valve core is rotationally connected in the valve sleeve, and when the valve core rotates to the point that the water through hole is communicated with the first communication port, the valve core can open the first water outlet and close the second water outlet; when the valve core rotates to the state that the water through hole is communicated with the second communication port, the valve core can open the second water outlet and close the first water outlet.

In one possible design, the drive motor has a drive shaft connected to the valve spool for driving the valve spool to rotate within the valve housing.

In one possible design, the flush valve further includes a controller in signal communication with the drive motor for controlling the drive motor to turn on or off.

In one possible design, the flushing valve further comprises a transmission member, one end of the transmission member is provided with a slot, and at least part of the driving shaft extends into the slot; the other end of the transmission piece is provided with a transmission shaft, and the transmission shaft is connected with the valve core.

In one possible design, the top wall of the valve core is provided with an anti-rotation hole, and at least part of the transmission shaft extends into the anti-rotation hole.

In one possible design, the top wall of the valve core is further provided with through holes, and a plurality of through holes are arranged around the rotation preventing hole along the circumferential direction of the valve core.

In one possible design, the valve sleeve and the valve core are both ceramic.

In one possible design, a first plane and a second plane are provided on the outer wall of the valve sleeve, the first plane being in abutment with the edge of the first water outlet and the second plane being in abutment with the edge of the second water outlet.

In one possible design, the flushing valve further comprises a valve cover connected to the valve body, and a sealing ring is arranged between the valve cover and the valve body; and/or a sealing ring is arranged between the valve cover and the valve sleeve.

In the application, the side wall of the valve core is provided with the water through hole, when the driving motor controls the valve core to rotate until the water through hole is communicated with the first water outlet, the first water outlet is opened, and meanwhile, the side wall of the valve core can close the second water outlet, so that water can sequentially pass through the water inlet, the water through hole and the first water outlet and finally flow to a toilet, and one flushing action is completed; when the driving motor controls the valve core to continue to rotate until the water through hole is communicated with the second water outlet, the second water outlet is opened, and meanwhile, the side wall of the valve core can close the first water outlet, so that water can sequentially pass through the water inlet, the water through hole and the second water outlet, and finally flows to the toilet to finish the second flushing action; when the driving motor controls the valve core to continuously rotate until the water through hole faces the wall surface of the valve body, the side wall of the valve core can simultaneously close the first water outlet and the second water outlet, and at the moment, water cannot flow to the toilet.

In the flushing valve provided by the application, the valve core is rotationally connected to the valve body, when the water through hole rotates to be communicated with the first water outlet, water of the water inlet can flow to the first water outlet, and when the water through hole rotates to be communicated with the second water outlet, water of the water inlet can flow to the second water outlet. Compared with the prior art, utilize the inside pressure differential control diaphragm structure of valve body and water to lift up to accomplish the flushometer of flushing action, the play water flow of flushometer that this application provided can not receive the influence of water pressure, even the internal water pressure of valve is lower, also can guarantee that water flows from the water inlet to the first delivery port or the second delivery port as much as possible, can not lead to the flow reduction of flushing, ensures that the flushometer also can accomplish the flushing action under the lower circumstances of water pressure. And, compare in the diaphragm structure, can not produce the clapping to rivers when this case in this application and water contact, the noise is less.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 is a schematic view of a flush valve provided herein;

FIG. 2 is a schematic cross-sectional view of the flush valve with the first outlet open and the second outlet closed;

FIG. 3 is a schematic cross-sectional view of the flush valve when the second outlet is open and the first outlet is closed;

FIG. 4 is a schematic cross-sectional view of the flush valve when both the first and second water outlets are closed;

FIG. 5 is an enlarged view of portion A of FIG. 2;

FIG. 6 is an assembly view of a valve cartridge and a valve body;

FIG. 7 is an enlarged view of portion B of FIG. 3;

fig. 8 is a top view of fig. 6.

Reference numerals:

1-a valve body;

11-water inlet;

12-a first water outlet;

13-a second water outlet;

14-a water inlet channel;

15-a first water outlet channel;

16-a second water outlet channel;

2-valve core;

21-water holes;

22-anti-rotation holes;

23-through holes;

3-valve sleeve;

31-a first communication port;

32-a second communication port;

33-a first plane;

34-a second plane;

4-driving a motor;

41-a drive shaft;

5-a transmission member;

51-slots;

52-a transmission shaft;

6, a valve cover;

7-sealing rings.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Detailed Description

For a better understanding of the technical solutions of the present application, embodiments of the present application are described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

The embodiment of the application provides a flushing valve, can be arranged in intelligent closestool, and as shown in fig. 1 and 2, this flushing valve includes valve body 1, and valve body 1 is the three-way valve body, including a water inlet channel 14 and two water outlet channels, wherein, two upper and lower flushing ports of closestool are communicated respectively to first water outlet channel 15 and second water outlet channel 16. The flushing valve further comprises a valve core 2 and a driving motor 4, wherein the valve body 1 is provided with a water inlet 11, a first water outlet 12 and a second water outlet 13, the valve core 2 is rotatably arranged in the valve body 1, a water through hole 21 is formed in the side wall of the valve core 2, the driving motor 4 is connected with the valve core 2 and used for controlling the valve core 2 to rotate, so that the first water outlet 12 is opened when the water through hole 21 is communicated with the first water outlet 12, the side wall of the valve core 2 is used for closing the second water outlet 13, and the driving motor 4 is also used for controlling the valve core 2 to rotate, so that the second water outlet 13 is opened when the water through hole 21 is communicated with the second water outlet 13, and the side wall of the valve core 2 is used for closing the first water outlet 12.

In the embodiment, the top end of the valve core 2 is connected with a driving motor 4, and the driving motor 4 is used for controlling the valve core 2 to rotate in the valve body 1; the bottom end of the valve core 2 is communicated with the water inlet 11, and the water inlet channel 14 always keeps a water-through state, namely, water always flows from the water inlet 11 to the inside of the valve core 2.

As shown in fig. 2, when the driving motor 4 controls the valve core 2 to rotate until the water through hole 21 is communicated with the first water outlet 12, the first water outlet 12 is opened, and meanwhile, the side wall of the valve core 2 can close the second water outlet 13, so that water in the valve core 2 can flow to the first water outlet 12 and then flow to a toilet along the first water outlet channel 15, namely, water in the water inlet channel 14 can sequentially pass through the water inlet 11, the water through hole 21 and the first water outlet 12 and finally flow to the toilet, and a flushing action is completed; as shown in fig. 3, when the driving motor 4 controls the valve core 2 to continue to rotate until the water through hole 21 is communicated with the second water outlet 13, the second water outlet 13 is opened, meanwhile, the side wall of the valve core 2 can close the first water outlet 12, water in the valve core 2 can flow to the second water outlet 13 and then flow to the toilet along the second water outlet channel 16, namely, water in the water inlet channel 14 can sequentially pass through the water inlet 11, the water through hole 21 and the second water outlet 13 and finally flow to the toilet to finish the second flushing action; as shown in fig. 4, when the driving motor 4 controls the valve core 2 to continue to rotate until the water through hole 21 faces the wall surface of the valve body 1, the side wall of the valve core 2 can simultaneously close the first water outlet 12 and the second water outlet 13, at this time, the first water outlet channel 15 and the second water outlet channel 16 are both in a non-water state, and water in the water inlet channel 14 cannot flow to the toilet.

The water inlet channel 14 can be connected with a water tank of the toilet bowl or can be directly connected with a water pipe capable of supplying water.

In this embodiment, the valve core 2 is rotatably connected to the valve body 1, the water inlet 11 is in a normally open structure, when the water through hole 21 rotates to be communicated with the first water outlet 12, water in the water inlet 11 can flow to the first water outlet 12, and when the water through hole 21 rotates to be communicated with the second water outlet 13, water in the water inlet 11 can flow to the second water outlet 13. Compared with the prior art, the flushing valve which utilizes the pressure difference between the inside of the valve body 1 and water to control the diaphragm structure to lift up so as to finish flushing action, the water outlet flow of the flushing valve provided by the embodiment cannot be influenced by water pressure, even if the water pressure in the valve body 1 is lower, the water can be guaranteed to flow from the water inlet 11 to the first water outlet 12 or the second water outlet 13 as much as possible, the flow of flushing cannot be reduced, and the flushing action can be finished under the condition of lower water pressure by the flushing valve. And, compare in the diaphragm structure, case 2 in this application can not produce the clapping to rivers when contacting with water, and the noise is less.

In addition, the valve core 2 is controlled to rotate through the driving motor 4, so that the flushing action of the water outlets at the two ends can be switched, the structure is simpler, and the control is convenient.

In a specific embodiment, as shown in fig. 5 and 6, the flushing valve further includes a valve housing 3 installed in the valve body 1, a first communication port 31 and a second communication port 32 are provided on a sidewall of the valve housing 3, the first communication port 31 communicates with the first water outlet 12, the second communication port 32 communicates with the second water outlet 13, the valve core 2 is rotatably connected in the valve housing 3, when the valve core 2 is rotated to the state that the water through hole 21 communicates with the first communication port 31, the valve core 2 can open the first water outlet 12 and close the second water outlet 13, and when the valve core 2 is rotated to the state that the water through hole 21 communicates with the second communication port 32, the valve core 2 can open the second water outlet 13 and close the first water outlet 12.

In this embodiment, the valve sleeve 3 is fixedly installed in the valve body 1, the valve core 2 is rotationally connected with the valve sleeve 3, the valve sleeve 3 has a limiting function on the valve core 2, and the valve core 2 can be prevented from tilting or swaying in the valve body 1, so that the stability of the valve core 2 is ensured. The valve sleeve 3 can also reduce the abrasion of the valve core 2 to the valve body 1 and prolong the service life of the valve body 1. Specifically, the side wall of the valve sleeve 3 is provided with a first communication port 31 and a second communication port 32, the first communication port 31 and the first water outlet 12 are identical in shape and are always in a communication state, the second communication port 32 and the second water outlet 13 are identical in shape and are always in a communication state, the valve core 2 can be ensured to rotate to the position when the water through hole 21 is communicated with the first communication port 31, the first water outlet 12 can be opened, the second water outlet 13 can be closed, and the valve core 2 can be ensured to rotate to the position when the water through hole 21 is communicated with the second communication port 32, and the second water outlet 13 can be opened and the first water outlet 12 can be closed.

In a specific embodiment, as shown in fig. 7, the drive motor 4 has a drive shaft 41, the drive shaft 41 being connected to the valve core 2 for driving the valve core 2 to rotate within the valve housing 3.

The driving shaft 41 can provide driving force for the valve core 2, and when the driving motor 4 is started, the driving shaft 41 can drive the valve core 2 to synchronously rotate in the valve sleeve 3 so as to open or close the first water outlet 12 and the second water outlet 13.

In this embodiment, the driving motor 4 may be a stepping motor.

In a specific embodiment, the flush valve further comprises a controller (not shown) in signal communication with the drive motor 4 for controlling the drive motor 4 to be turned on or off.

The controller is used for controlling the driving motor 4 to be turned on or turned off so that the driving shaft 41 can drive the valve core 2 to rotate synchronously, and when the controller is triggered (for example, a user presses a flushing button) to start working, the controller can send a signal to the driving motor 4 to control the driving motor 4 to be turned on so as to drive the valve core 2 to rotate, so that a flushing function is realized.

Specifically, when the controller is not triggered, the driving motor 4 is closed, the side wall of the valve core 2 simultaneously closes the first water outlet 12 and the second water outlet 13, and the flushing valve does not flush water; when the controller is triggered to start working, the driving motor 4 is started under the control of the controller, the driving shaft 41 drives the valve core 2 to rotate until the water through hole 21 is communicated with the first water outlet 12, at this time, the flushing opening connected with the first water outlet 15 on the toilet is flushed (the driving shaft 41 stops rotating for about 6 seconds), then the driving shaft 41 drives the valve core 2 to continue rotating until the water through hole 21 is communicated with the second water outlet 13, at this time, the flushing opening connected with the second water outlet 16 on the toilet is flushed (the driving shaft 41 stops rotating for about 7 seconds), then the driving shaft 41 drives the valve core 2 to rotate in the opposite direction until the water through hole 21 is communicated with the first water outlet 12, at this time, the flushing opening connected with the first water outlet 15 on the toilet is flushed again (the driving shaft 41 stops rotating for about 7 seconds), and finally the driving shaft 41 drives the valve core 2 to continue rotating to complete resetting, so that the side wall of the valve core 2 simultaneously closes the first water outlet 12 and the second water outlet 13, and the controller controls the driving motor 4 to close, and the flushing process of the toilet is ended.

In a specific embodiment, as shown in fig. 7, the flushing valve further comprises a transmission member 5, one end of the transmission member 5 is provided with a slot 51, at least part of the driving shaft 41 extends into the slot 51, the other end of the transmission member 5 is provided with a driving shaft 52, and the driving shaft 52 is connected with the valve core 2.

The both ends of driving medium 5 are connected with drive shaft 41 and case 2 respectively, and when driving motor 4 starts, drive shaft 41 rotates, and driving medium 5 passes through transmission shaft 52 with the power transmission of drive shaft 41 to case 2, can drive case 2 and rotate in step, and driving medium 5 can promote the stability of power transmission process, makes the rotation of case 2 remain steady, can not take place to shake or shake.

The socket 51 is in plug-in fit with the driving shaft 41, so that the connection stability of the driving motor 4 and the transmission piece 5 can be improved, and the driving motor and the transmission piece are prevented from being separated.

In a specific embodiment, as shown in fig. 6 and 7, the top wall of the valve core 2 is provided with an anti-rotation hole 22, and at least part of the transmission shaft 52 extends into the anti-rotation hole 22.

The shape of the transmission shaft 52 matches the shape of the anti-rotation hole 22, and specifically, the first anti-rotation hole 512 may be a waist-shaped hole, a square hole, a diamond hole, or the like. At least part of the transmission shaft 52 is located in the anti-rotation hole 22, and the anti-rotation hole 22 can limit the transmission shaft 52 to rotate relative to the anti-rotation hole, so that the transmission shaft 52 is tightly connected with the valve core 2, and when the transmission shaft 52 rotates, the valve core 2 can be driven to rotate synchronously without falling off.

In a specific embodiment, as shown in fig. 6 and 8, the top wall of the valve core 2 is further provided with through holes 23, and a plurality of through holes 23 are provided around the rotation preventing hole 22 in the circumferential direction of the valve core 2.

In this embodiment, the water inlet channel 14 always maintains a water-passing state, if the water pressure in the water inlet channel 14 is high, at the moment when the valve core 2 rotates to the side wall of the valve core 2 and simultaneously closes the first water outlet 12 and the second water outlet 13, the water in the water inlet channel 14 cannot be discharged out of the flushing valve, which can lead to rapid increase of the pressure in the water inlet channel 14, and the water flow can generate a water hammer phenomenon under the action of inertia, so that the valve body 1 is easily damaged. At this time, the through hole 23 can communicate the inside of the valve core 2 with the valve body 1, so as to perform the function of water and air ventilation, and the water in the valve core 2 can flow from the through hole 23 to the outside of the valve core 2, so that the pressure difference between the inside and the outside of the valve core 2 is reduced, the water pressure in the water inlet channel 14 is reduced, and the occurrence of the water hammer phenomenon is avoided. The pressure difference between the inside and the outside of the valve core 2 is reduced, the load of the driving motor 4 is also reduced,

in addition, by providing the plurality of through holes 23, the weight of the valve element 2 can be reduced, and the load of the drive motor 4 can be reduced.

In a specific embodiment, the valve housing 3 and the valve core 2 are both ceramic materials.

When the valve sleeve 3 and the valve core 2 are made of ceramic materials, sliding friction between the valve core 2 and the valve sleeve 3 can be reduced, so that the valve core 2 rotates more smoothly, and the flushing valve is beneficial to quickly switching water outlets at two ends to flush. The ceramic material can also reduce the abrasion between the valve core 2 and the valve sleeve 3, which is beneficial to prolonging the service life of the flushing valve.

In a specific embodiment, as shown in fig. 6 and 8, the outer wall of the valve sleeve 3 is provided with a first plane 33 and a second plane 34, the first plane 33 is abutted against the edge of the first water outlet 12, and the second plane 34 is abutted against the edge of the second water outlet 13.

The first communication port 31 is disposed on the first plane 33, the second communication port 32 is disposed on the second plane 34, the first plane 33 is abutted against the edge of the first water outlet 12, the second plane 34 is abutted against the edge of the second water outlet 13, and compared with the arc-shaped wall surface, the first plane 33 and the second plane 34 are abutted against the inner wall of the valve body 1, so that the mounting stability of the valve body 1 can be improved, the tightness between the first communication port 31 and the first water outlet 12 and the tightness between the second communication port 32 and the second water outlet 13 can be improved, and water leakage can be prevented.

In a specific embodiment, as shown in fig. 7, the flushing valve further comprises a valve cover 6 connected to the valve body 1, a sealing ring 7 being arranged between the valve cover 6 and the valve body 1, and/or a sealing ring 7 being arranged between the valve cover 6 and the valve housing 3.

The valve cap 6 is used for sealing the valve body 1, preventing water in the valve body 1 from flowing out, and the sealing ring 7 is erected between the valve cap 6 and the valve body 1, so that the sealing performance of the valve body 1 can be further improved. Alternatively, a seal ring 7 may be provided between the valve cover 6 and the valve housing 3, and the sealing performance of the valve body 1 may be improved.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. A flush valve, the flush valve comprising:

the valve body (1) is provided with a water inlet (11), a first water outlet (12) and a second water outlet (13);

the valve core (2) is rotatably arranged in the valve body (1), and a water through hole (21) is formed in the side wall of the valve core (2);

the driving motor (4) is connected with the valve core (2) and is used for controlling the valve core (2) to rotate so as to open the first water outlet (12) when the water through hole (21) is communicated with the first water outlet (12), and the side wall of the valve core (2) is closed to the second water outlet (13);

and the driving motor (4) is also used for controlling the valve core (2) to rotate, so that the second water outlet (13) is opened when the water through hole (21) is communicated with the second water outlet (13), and the side wall of the valve core (2) is closed to the first water outlet (12).

2. The flush valve according to claim 1, further comprising a valve housing (3) mounted in the valve body (1), a first communication port (31) and a second communication port (32) being provided on a side wall of the valve housing (3), the first communication port (31) being in communication with the first water outlet (12), the second communication port (32) being in communication with the second water outlet (13);

the valve core (2) is rotationally connected in the valve sleeve (3), and when the valve core (2) rotates to the state that the water through hole (21) is communicated with the first communication port (31), the valve core (2) can open the first water outlet (12) and close the second water outlet (13); when the valve core (2) rotates to the state that the water through hole (21) is communicated with the second communication port (32), the valve core (2) can open the second water outlet (13) and close the first water outlet (12).

3. The flush valve according to claim 2, characterized in that the drive motor (4) has a drive shaft (41), which drive shaft (41) is connected to the valve cartridge (2) for driving the valve cartridge (2) in rotation within the valve housing (3).

4. A flush valve as claimed in claim 3, characterized in that the flush valve further comprises a controller in signal connection with the drive motor (4) for controlling the drive motor (4) to be switched on or off.

5. A flush valve as claimed in claim 3, characterized in that the flush valve further comprises a transmission member (5), one end of the transmission member (5) being provided with a socket (51), at least part of the drive shaft (41) extending into the socket (51);

the other end of the transmission piece (5) is provided with a transmission shaft (52), and the transmission shaft (52) is connected with the valve core (2).

6. The flush valve according to claim 5, characterized in that the top wall of the valve core (2) is provided with an anti-rotation hole (22), at least part of the drive shaft (52) extending into the anti-rotation hole (22).

7. The flush valve according to claim 6, wherein a top wall of the valve body (2) is further provided with through holes (23), and a plurality of the through holes (23) are provided around the rotation preventing hole (22) in a circumferential direction of the valve body (2).

8. The flush valve according to any one of claims 2 to 7, characterized in that the valve sleeve (3) and the valve core (2) are both ceramic.

9. The flush valve according to any one of claims 2 to 7, characterized in that a first plane (33) and a second plane (34) are provided on the outer wall of the valve housing (3), the first plane (33) being in abutment with the edge of the first water outlet (12) and the second plane (34) being in abutment with the edge of the second water outlet (13).

10. The flush valve according to any one of claims 2-7, further comprising a valve cover (6) connected to the valve body (1), a sealing ring (7) being arranged between the valve cover (6) and the valve body (1);

and/or a sealing ring (7) is arranged between the valve cover (6) and the valve sleeve (3).

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