A flush valve assembly

Abstract

The flushing valve device is provided with a first channel and a second channel arranged in sequence along the water flow direction, and a guide surface is arranged at the section difference of the first channel and the second channel to guide the water flow from the first channel to the second channel, so that the water in the first channel changes its water flow direction when it hits the guide surface, and then flows to the second channel under the guidance of the guide surface, thus reducing the vortex ring and the force opposite to the water flow direction in the flow channel, thereby increasing the flow and the flow rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flushing device, in particular to a flushing valve device. BACKGROUND

[0002] The existing flushing valve is composed of multiple valve bodies and water inlet connectors. The common flushing valve includes a ball valve, and the water inlet connector and the main valve are connected to the two sides of the ball valve, respectively. Due to the different sizes of the flow channels arranged in the valve bodies, there is usually a step difference between the flow channels of the valve bodies when they are connected and installed. The water will impact the step difference position during the flow process, so that vortex rings are generated in the flow channel and a force opposite to the water inlet direction is generated, thereby causing the flow rate to slow down.

[0003] In addition, the current main valve and water inlet connector are connected to the two sides of the ball valve through threads, and then the flushing valve is installed in the embedded box embedded in the wall. Since the space of the embedded box is designed to be compact, the rotation angle of the wrench in the embedded box is small, and it is difficult to disassemble. SUMMARY

[0004] The purpose of the present application is to provide a flushing valve device, which aims to solve the problem of small flow and slow flow rate caused by the step difference in the flow channel of the existing flushing valve.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A flushing valve device, which is internally provided with a first channel and a second channel that are sequentially communicated along the water flow direction. The radial dimension of the outlet end of the first channel is larger than the radial dimension of the inlet end of the second channel, so that there is a step difference at the connection of the first channel and the second channel. A guide surface is arranged at the step difference position to guide the water flow from the first channel to the second channel.

[0007] Further, a guide member is arranged at the step difference position. The side of the guide member facing the first channel constitutes the guide surface, and at least the guide surface part of the guide member is made of an elastic body material.

[0008] Further, a plurality of reinforcing ribs are distributed at the side of the guide surface away from the first channel, and a buffer groove is formed between two adjacent reinforcing ribs. When the guide surface is impacted by the water flow, the guide surface elastically deforms towards the buffer groove. When the water flow stops impacting the guide surface, the buffer groove restores to the original state under the action of the elastic force.

[0009] Further, the reinforcing ribs are made of an elastic body material, and the guide surface and the reinforcing ribs are integrally injection molded.

[0010] Further, the guide surface is an arc surface or a curved surface protruding towards the first channel.

[0011] Further, the first valve body is provided with the first channel, and the second valve body is provided with the second channel, the guide surface faces the first valve body, and the buffer groove faces the second valve body, the first valve body abuts against the guide surface so as to press the guide piece against the second valve body, and the surface of the side of the guide piece provided with the buffer groove is matched with the surface of the second valve body.

[0012] Further, part of the guide surface is provided with a pressing surface matched with the surface of the first valve body, and the first valve body abuts against the pressing surface so as to press the guide piece against the second valve body.

[0013] Further, part of the guide piece is matched with the second valve body through the positioning device.

[0014] Further, the positioning device comprises positioning grooves arranged on the guide piece and positioning protrusions arranged on the second valve body and matched with the positioning grooves one by one.

[0015] Further, the first valve body is connected to the second valve body, one end of the first valve body is provided with a first fixing hole A, the second valve body is provided with a first fixing hole B matched with the first fixing hole A, a first bolt is detachably inserted into the first fixing hole A and the first fixing hole B so as to connect the first valve body and the second valve body, and the first valve body presses the guide piece against the second valve body.

[0016] Further, one end of the first valve body away from the second valve body is provided with a second fixing hole A, a water inlet connector group is arranged, the water inlet connector group is provided with a second fixing hole B matched with the second fixing hole A, and a second bolt is detachably inserted into the second fixing hole A and the second fixing hole B so as to connect the first valve body and the water inlet connector group.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The flushing valve device provided by the present application is provided with a first channel and a second channel arranged in sequence along the water flow direction, a guide surface is arranged at the section difference between the first channel and the second channel and used for guiding the water flow from the first channel to the second channel, when the water in the first channel impacts on the guide surface, the water flow direction is changed, the water flows to the second channel under the guidance of the guide surface, the vortex ring and the force opposite to the water flow direction in the flow passage are reduced, and the flow rate and the flow speed are increased.

[0019] 2、The flushing valve device provided by the application is characterized in that a guide piece is arranged at the section gap, the side of the guide piece facing the first channel is provided with a guide surface made of elastic material, and when water flow impacts on the guide surface, the guide surface is elastically deformed along the water flow to serve as a buffer, thereby avoiding the backwash effect caused by the direct impact of the water flow on the second channel hole, and reducing the degree of water flow speed attenuation.

[0020] 3、The flushing valve device provided by the application is characterized in that the side of the guide piece facing away from the first channel is provided with a plurality of reinforcing ribs at intervals, and a buffer groove is formed between the two adjacent reinforcing ribs, the buffer groove provides a larger deformation space for the elastic deformation of the guide surface when water flow impacts on the guide surface, thereby further reducing the attenuation of the water flow speed when guiding the water flow.

[0021] 4、The flushing valve device provided by the application is characterized in that the guide surface is an arc surface or a curved surface protruding towards the first channel, so that part of the water flow first impacts on the guide surface and is guided into the second flow channel by the guide surface, thereby realizing zoned flow guiding and further playing a buffering effect.

[0022] 5、The flushing valve device provided by the application is characterized in that the guide piece is provided with a pressing surface at a part of the position facing the first channel, and when the first valve body is connected to the second valve body, the first valve body abuts against the pressing surface, thereby pressing and fixing the guide piece to the second valve body.

[0023] 6、The flushing valve device provided by the application is characterized in that a part of the position of the guide piece is adapted to the second valve body through the positioning device, so that the guide piece is quickly installed on the second valve body under the premise that the guide direction of the guide surface is correct, thereby improving the installation efficiency.

[0024] 7、The flushing valve device provided by the application is characterized in that the second valve body and the water inlet connector group are respectively connected to the two sides of the first valve body through the first pin and the second pin, and the first pin and the second pin can be pulled out to realize the disassembly and installation of the water inlet connector group and the second valve body and the first valve body. Compared with the existing threaded connection, the connection mode of the first pin and the second pin has smaller space requirement in the pre-buried box and higher disassembly and installation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0026] Figure 1 is a top view of the flushing valve device of the application;

[0027] Figure 2 isFigure 1 A-A sectional view;

[0028] Figure 3 For Figure 1 B-B sectional view;

[0029] Figure 4 The exploded view of the flush valve device of the present application;

[0030] Figure 5 The adapter of the flush valve device of the present application;

[0031] Figure 6 The first valve body of the flush valve device of the present application;

[0032] Figure 7 The second valve body of the flush valve device of the present application;

[0033] Figure 8 The guide of the flush valve device of the present application;

[0034] Figure 9 The guide of the flush valve device of the present application;

[0035] Figure 10 The first latch of the flush valve device of the present application;

[0036] Figure 11 The second latch of the flush valve device of the present application;

[0037] In the figure, 10, the first valve body; 101, the connecting block; 1011, the plug-in hole; 102, the positioning block; 103, the handle; 201, the adapter; 2011, the plug-in column; 2012, the threaded column; 202, the water inlet connector body; 30, the second valve body; 301, the positioning seat; 401, the first channel; 402, the second channel; 50, the guide; 501, the pressing surface; 502, the guide surface; 503, the reinforcing rib; 504, the buffer groove; 505, the positioning groove; 506, the positioning hole; 601, the first latch; 6011, the crossbar; 6012, the first insertion needle; 6013, the second insertion needle; 602, the second latch; 6021, the latch body; 6022, the anti-dropping part; 701, the first fixed hole A; 702, the first fixed hole B; 801, the second fixed hole A; 802, the second fixed hole B; 901, the first gland nut; 902, the second gland nut; 100, the large flush valve body connector; 1001, the limiting step; 110, the one-way valve; 120, the water outlet connector; 130, the pre-embedded box. DETAILED DESCRIPTION

[0038] The following will be combined Figures 1-11The present invention will be described in detail below.

[0039] A flushing valve device, such as Figure 3 As shown, its interior is provided with a first channel 401 and a second channel 402 connected sequentially along the water flow direction. The radial dimension of the outlet end of the first channel 401 is larger than the radial dimension of the inlet section of the second channel 402, so that there is a step difference between the first channel 401 and the second channel 402. At the step difference, there is a guide surface 502 to guide the water flow from the first channel 401 to the second channel 402. When the water in the first channel 401 hits the guide surface 502, it changes its water flow direction and flows to the second channel 402 under the guidance of the guide surface 502. This reduces the generation of vortices and forces opposite to the water flow direction in the flow channel, thereby increasing the flow rate and velocity.

[0040] In this embodiment, as Figures 8-9 As shown, it also includes a guide member 50 disposed at the step difference. The side of the guide member 50 facing the first channel 401 forms a guide surface 502. At least its guide surface 502 is made of an elastomeric material. In use, when the water flow impacts the guide surface 502, the guide surface 502 undergoes elastic deformation along the water flow to act as a buffer, avoiding the backlash caused by the water flow directly impacting the opening of the second channel 402. At the same time, based on the buffering effect of the guide surface 502, the degree of water flow velocity attenuation when the water flow impacts the guide surface 502 is reduced.

[0041] In this embodiment, as Figure 8 As shown, a number of reinforcing ribs 503 are spaced apart on the side of the guide surface 502 away from the first channel 401. A buffer groove 504 is formed between two adjacent reinforcing ribs 503. When the guide surface 502 is impacted by water flow, it undergoes elastic deformation towards the buffer groove 504. When the water flow stops impacting the guide surface 502, the buffer groove 504 returns to its original shape under elastic force. The buffer groove 504 provides a larger deformation space for the elastic deformation that occurs when water flow impacts the guide surface 502, further reducing the attenuation of water flow velocity during water flow guidance. Simultaneously, the reinforcing ribs 503 provide support for the guide surface 502, preventing large-area elastic deformation when the guide surface 502 is impacted. This allows the guide surfaces 502 corresponding to the buffer grooves 504 to undergo elastic deformation sequentially, expanding the buffering effect on the water flow. Furthermore, the reinforcing ribs 503 are made of an elastomer material, and the guide surface 502 and the reinforcing ribs 503 are integrally injection molded.

[0042] In this embodiment, as Figure 9As shown, the guide surface 502 is an arc or curved surface protruding towards the first channel 401. Specifically, the middle part of the guide surface 502 is protruding, so that the water flow near the middle part of the first flow channel first hits the guide surface 502 and is first guided by the guide surface 502 into the second flow channel, while the water flow distributed on both sides of the first flow channel subsequently hits the two ends of the guide surface 502, so that the guide surface 502 corresponding to each buffer groove 504 elastically deforms in turn, realizing zoned flow guiding and further playing a buffering role.

[0043] In this embodiment, as shown in the figure, Figure 4 The flushing valve device includes a first valve body 10 and a second valve body 30. Specifically, the first valve body 10 is a ball valve, and the second valve body 30 is a main valve. In other embodiments, the first valve body 10 and the second valve body 30 can also be other types of valve bodies. The first valve body 10 is provided with a first channel 401, and the second valve body 30 is provided with a second channel 402. The guide surface 502 faces the first valve body 10, and the buffer groove 504 faces the second valve body 30. The first valve body 10 abuts against the guide surface 502, thereby pressing the guide piece 50 against the second valve body 30. The surface of the side of the guide piece 50 provided with the buffer groove 504 is adapted to the surface of the second valve body 30.

[0044] In this embodiment, as shown in the figure, Figure 9 The part of the guide piece 50 facing the first channel 401 is provided with a pressing surface 501. The first valve body 10 abuts against the pressing surface 501, thereby pressing the guide piece 50 against the second valve body 30. Further, the pressing surface 501 is adapted to the surface of the first valve body 10, so that when the first valve body 10 is pressed against the pressing surface 501, the pressing surface 501 is uniformly stressed everywhere, avoiding deformation of the guide piece 50 under pressure and affecting the flow guiding effect.

[0045] In this embodiment, part of the guide piece 50 is adapted to the second valve body 30 through positioning devices. Further, the positioning devices include a plurality of positioning grooves provided on the guide piece 50 and positioning protrusions provided on the second valve body 30 and corresponding to the positioning grooves one by one, so that the guide piece 50 is quickly installed on the second valve body 30 under the premise that the guide direction of the guide surface 502 is correct, improving the installation efficiency. Specifically, the positioning grooves include a positioning groove 505 provided on the top of the guide piece 50 and a positioning hole 506 provided on the middle part of the guide piece 50, as shown in the figure. Figure 8 Correspondingly, the positioning protrusions include a positioning rib provided on the second valve body 30 and a positioning column, wherein the positioning rib is adapted to the positioning groove 505, and the positioning column is adapted to the positioning hole 506.

[0046] In this embodiment, as shown in the figure, Figures 6-7As shown in the figure, the first valve body 10 is connected to one end of the second valve body 30, and is provided with a first fixed hole A701, and the second valve body 30 is provided with a first fixed hole B702 matched with the first fixed hole A701; further comprising a first plug 601, which is detachably inserted into the first fixed hole A701 and the first fixed hole B702, so as to connect the first valve body 10 and the second valve body 30, so that the first valve body 10 presses the guide piece 50 to the second valve body 30.

[0047] In this embodiment, as shown in the figure, Figure 6 As shown in the figure, the first valve body 10 is connected to one end of the second valve body 30, and is provided with a first fixed hole A701, and the second valve body 30 is provided with a first fixed hole B702 matched with the first fixed hole A701; further comprising a first plug 601, which is detachably inserted into the first fixed hole A701 and the first fixed hole B702, so as to connect the first valve body 10 and the second valve body 30, so that the first valve body 10 presses the guide piece 50 to the second valve body 30. Figure 10 As shown in the figure, the first plug 601 comprises a crossbar 6011, and the crossbar 6011 is provided with a first plug pin 6012 and a second plug pin 6013 at two ends respectively, and the first plug pin 6012 and the second plug pin 6013 are inserted into the first fixed hole A701 located on both sides of the first valve body 10 respectively.

[0048] In this embodiment, as shown in the figure, Figures 1-2 As shown in the figure, the first valve body 10 is provided with a handle 103, and the handle 103 is drivingly connected to a valve core arranged in the first valve body 10, so that the handle 103 can be used not only to operate the valve core to open or close the first valve body 10, but also to abut against the crossbar 6011 when the first plug 601 is loosened, so as to prevent the first plug 601 from falling off and causing the second valve body 30 to fall off.

[0049] In this embodiment, as shown in the figure, Figures 5-6 As shown in the figure, the first valve body 10 is provided with a second fixed hole A801 away from the second valve body 30; further comprising a water inlet connector group, which is provided with a second fixed hole B802 matched with the second fixed hole A801. Further comprising a second plug 602, which is detachably inserted into the second fixed hole A801 and the second fixed hole B802, so as to connect the first valve body 10 and the water inlet connector group.

[0050] In this embodiment, the water inlet connector group comprises an adapter 201, as shown in the figure, Figure 5As shown, the adapter 201 is provided with a plurality of insertion posts 2011 at one end, and the first valve body 10 is provided with insertion holes 1011 adapted to the insertion posts 2011 at the end away from the second valve body 30. Each insertion post 2011 is provided with a second fixing hole B802 along the radial direction thereof, and the first valve body 10 is provided with a second fixing hole A801 radially penetrating the insertion holes 1011. Figure 2 As shown, when the insertion posts 2011 are inserted into the insertion holes 1011, the second pin 602 penetrates the second fixing hole A801 above the insertion hole 1011, the second fixing hole B802, and the second fixing hole A801 below the insertion hole 1011 in sequence.

[0051] In the embodiment, the number of the insertion posts 2011 is two, and the first valve body 10 is provided with a connecting block 101 at both sides of the end away from the second valve body 30, and the connecting block 101 is provided with the insertion holes 1011 and the second fixing hole A801. Further, the second pin 602 comprises a pin body 6021 and an anti-dropping part 6022 connected to one end of the pin body 6021, and the pin body 6021 penetrates the second fixing hole A801 and the second fixing hole B802. When the pin body 6021 penetrates the second fixing hole A801 and the second fixing hole B802, the anti-dropping part 6022 is buckled to the aperture of the insertion hole 1011 away from the end of the water inlet connector group, so as to avoid the second pin 602 from falling off and causing the adapter 201 to be separated from the first valve body 10 during use.

[0052] Therefore, the second valve body 30 and the adapter 201 are connected to both sides of the first valve body 10 through the first pin 601 and the second pin 602 respectively, and the first pin 601 and the second pin 602 can be pulled out and inserted to realize the disassembly and assembly between the adapter 201 and the second valve body 30 and the first valve body 10. Compared with the existing threaded connection, the connection mode of the first pin 601 and the second pin 602 has smaller space requirement in the pre-buried box 130 and higher disassembly and assembly efficiency.

[0053] In the embodiment, as shown, Figures 2-4 The water inlet connector group further comprises a water inlet connector body 202 connected to the other end of the adapter 201. Specifically, the other side of the adapter 201 is provided with a threaded post 2012, and the water inlet connector body 202 is sleeved with a first gland nut 901 threadedly adapted to the threaded post 2012, so as to lock the water inlet connector body 202 to the adapter 201, and a gasket is arranged between the water inlet connector body 202 and the threaded post 2012.

[0054] In the embodiment, as shown, Figures 2-4As shown, the outlet end of the second valve body 30 is connected to a large-flow valve body connector 100. Specifically, the large-flow valve body connector 100 is fitted with a second pressure cap nut 902, the threads of which are adapted to the outlet end of the second valve body 30, thereby connecting the large-flow valve body connector 100 to the second valve body 30. Furthermore, the large-flow valve body connector 100 has an outlet connector 120 on its outer sliding sealing sleeve, thereby adjusting the position of the outlet connector 120 to accommodate the length of the reserved outlet pipe. The large-flow valve body connector 100 is provided with a one-way valve 110 that opens in the outlet direction, and the inner wall of the large-flow valve body connector 100 is also provided with a limiting step 1001 extending radially inward. The outlet end of the one-way valve 110 abuts against the limiting step 1001 to prevent it from being flushed out of the large-flow valve body connector 100 under the action of water flow.

[0055] In this embodiment, as Figures 2-4 As shown, it also includes a pre-embedded box 130. The pre-embedded box 130 has a first mounting hole and a second mounting hole on opposite sides. The flushing valve device is installed in the pre-embedded box 130, and the water inlet connector group passes through the first mounting hole and the water outlet connector 120 passes through the second mounting hole.

[0056] In this embodiment, the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it, and should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A flushing valve device, characterized in that, It has a first channel and a second channel connected sequentially along the water flow direction. The radial dimension of the outlet end of the first channel is larger than the radial dimension of the inlet end of the second channel, so that there is a step difference at the connection between the first channel and the second channel. The step difference is provided with a guide surface to guide the water flow from the first channel to the second channel.

2. The flushing valve device as described in claim 1, characterized in that, It also includes a guide member disposed at the step, the guide member forming the guide surface on the side facing the first channel, and the guide member having at least its guide surface made of an elastomeric material.

3. A flushing valve device as described in claim 2, characterized in that, The guide surface has several reinforcing ribs spaced apart on the side opposite to the first channel, and a buffer groove is formed between two adjacent reinforcing ribs. When the guide surface is impacted by water flow, the guide surface undergoes elastic deformation in the buffer groove. When the water flow stops impacting the guide surface, the buffer groove returns to its original shape under the action of elastic force.

4. A flushing valve device as described in claim 3, characterized in that, The reinforcing rib is made of an elastomer material; the guide surface and the reinforcing rib are integrally injection molded.

5. A flushing valve device as described in any one of claims 2-4, characterized in that, The guide surface is an arc surface that protrudes towards the first channel.

6. A flushing valve device as described in claim 3, characterized in that, The device includes a first valve body and a second valve body. The first valve body has a first channel, and the second valve body has a second channel. The guide surface faces the first valve body, and the buffer groove faces the second valve body. The first valve body abuts against the guide surface to press the guide member against the second valve body. The surface of the guide member with the buffer groove is adapted to the surface of the second valve body.

7. A flushing valve device as described in claim 6, characterized in that, The guide member has a pressing surface at a portion of its position facing the first channel, and the first valve body abuts against the pressing surface, thereby pressing the guide member against the second valve body.

8. A flushing valve device as described in claim 6, characterized in that, A portion of the guide member is fitted into the second valve body via a positioning device.

9. A flushing valve device as described in claim 8, characterized in that, The positioning device includes a plurality of positioning grooves provided on the guide member, and positioning protrusions provided on the second valve body and corresponding to the positioning grooves.

10. A flushing valve device as described in claim 6, characterized in that, The first valve body is connected to the second valve body at one end and has a first fixing hole A. The second valve body is provided with a first fixing hole B that is adapted to the first fixing hole A. It also includes a first pin, which is detachably inserted into the first fixing hole A and the first fixing hole B to connect the first valve body and the second valve body, so that the first valve body presses the guide member against the second valve body.

11. A flushing valve device as described in claim 10, characterized in that, The first valve body has a second fixing hole A at one end away from the second valve body; it also includes a water inlet connector assembly, which has a second fixing hole B adapted to the second fixing hole A; and it also includes a second pin, which is detachably inserted into the second fixing hole A and the second fixing hole B to connect the first valve body and the water inlet connector assembly.

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