Flush valve device

Abstract

A flushing valve device is internally provided with a first channel and a second channel which are sequentially arranged in a communicating mode in the water flow direction, and a guide face for guiding water flow from the first channel to the second channel is arranged at the section difference position of the first channel and the second channel, so that when water in the first channel impacts the guide face, the water flow direction of the water is changed; the vortex ring generated in the flow channel and the force opposite to the water flow direction are reduced, and therefore the flow rate and the flow velocity are increased.

Description

Technical Field

[0001] The present invention relates to the technical field of flushing devices, and in particular to a flushing valve device. Background Art

[0002] Existing flush valves are composed of multiple valve bodies and water inlet joints. Common flush valves include ball valves, and the two sides of the ball valve are connected to the water inlet joint and the main valve respectively. Since the flow channel sizes set in the valve body are different, when multiple valve bodies are connected and installed, there is usually a step difference between the flow channels of each valve body. During the flow process, water will impact the step difference position, causing vortices in the flow channel and a force opposite to the water inlet direction, thereby slowing down the flow rate.

[0003] In addition, the current main valve and the water inlet joint are connected to both sides of the ball valve through threads, and then the flushing valve is installed in a pre-embedded box embedded in the wall. Due to the compact space design of the pre-embedded box, the rotation angle of the wrench in the pre-embedded box is small, and disassembly is more difficult. Summary of the invention

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

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A flushing valve device is provided with a first channel and a second channel connected in sequence along the direction of water flow. The radial dimension of the outlet end of the first channel is greater 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. A guide surface is provided at the step difference to guide the water flow from the first channel to the second channel.

[0007] Furthermore, it also includes a guide member arranged at the step difference, the side of the guide member facing the first channel constitutes the guide surface, and at least the guide surface portion of the guide member is made of an elastomeric material.

[0008] Furthermore, a plurality of reinforcing ribs are spaced apart on a side of the guide surface facing away from 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 elastically deforms toward the buffer groove. When the water flow stops impacting the guide surface, the buffer groove returns to its original state under the action of the elastic force.

[0009] Furthermore, the reinforcing rib is made of an elastomeric material; and the guide surface and the reinforcing rib are integrally injection molded.

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

[0011] Furthermore, it includes a first valve body and a second valve body, the first valve body is provided with the first channel, the second valve body is provided with the second channel, the guide surface faces the first valve body, 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, and the surface of the guide member on one side of which the buffer groove is provided is adapted to the surface of the second valve body.

[0012] Furthermore, a pressing surface adapted to the surface of the first valve body is provided at a portion of the guide surface, and the first valve body abuts against the pressing surface, thereby pressing the guide member against the second valve body.

[0013] Furthermore, a part of the guide member is concave-convexly adapted to the second valve body through a positioning device.

[0014] Furthermore, the positioning device includes a plurality of positioning grooves provided on the guide member, and positioning protrusions provided on the second valve body and adapted to the positioning grooves one by one.

[0015] Furthermore, the first valve body is connected to one end of the second valve body and is provided with a first fixing hole A, and the second valve body is provided with a first fixing hole B adapted to the first fixing hole A; it also includes a first latch, 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.

[0016] Furthermore, a second fixing hole A is provided at one end of the first valve body away from the second valve body; it also includes a water inlet joint group, and the water inlet joint group is provided with a second fixing hole B adapted to the second fixing hole A; it also includes a second latch, and the second latch is detachably plugged into the second fixing hole A and the second fixing hole B to connect the first valve body and the water inlet joint group.

[0017] The beneficial effects of the present invention are:

[0018] 1. A flushing valve device proposed in the present invention comprises a first channel and a second channel which are sequentially connected and arranged along a water flow direction, and a guide surface for guiding the water flow from the first channel to the second channel is provided at the step difference between the first channel and the second channel, so that when the water in the first channel hits the guide surface, its water flow direction is changed, and thus the water flows to the second channel under the guidance of the guide surface, thereby reducing the vortex generated in the flow channel and the force opposite to the water flow direction, thereby increasing the flow rate and flow velocity.

[0019] 2. A flushing valve device proposed in the present invention has a guide member at the step difference, and the side of the guide member facing the first channel is a guide surface made of elastic material. When water flows hit the guide surface, the guide surface is elastically deformed along the water flow to serve as a buffer, avoiding the recoil effect caused by the water flow directly hitting the orifice of the second channel, thereby reducing the degree of water flow velocity attenuation.

[0020] 3. A flushing valve device proposed in the present invention has a plurality of reinforcing ribs spaced apart on one side of the guide member away from the first channel, and a buffer groove is formed between two adjacent reinforcing ribs. The buffer groove provides a larger deformation space for the elastic deformation occurring when the water flow impacts the guide surface, thereby further reducing the attenuation of the water flow velocity when guiding the water flow.

[0021] 4. A flushing valve device proposed by the present invention has a guide surface that is an arc surface or a curved surface protruding toward the first channel, so that part of the water flow first hits the guide surface and is guided by the guide surface to the second flow channel first, thereby realizing partitioned diversion and further achieving a buffering effect.

[0022] 5. In a flushing valve device proposed by the present invention, a clamping surface is provided on a portion of the guide member facing the first channel. When the first valve body is connected to the second valve body, the first valve body abuts against the clamping surface, thereby clamping and fixing the guide member to the second valve body.

[0023] 6. In a flushing valve device proposed by the present invention, part of the position of the guide member is concavely adapted to the second valve body through a positioning device, so that the guide member can be quickly installed on the second valve body while ensuring that the guiding direction of the guide surface is correct, thereby improving the installation efficiency.

[0024] 7. In a flushing valve device proposed by the present invention, the second valve body and the water inlet joint group are connected to the two sides of the first valve body by the first latch and the second latch respectively, and the water inlet joint group and the second valve body can be disassembled and assembled from the first valve body by plugging and unplugging the first latch and the second latch. Compared with the existing threaded connection, the connection method using the first latch and the second latch requires less space in the embedded box and has a higher disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A top view of a flush valve device of the present invention;

[0027] Figure 2 for Figure 1 Middle AA section view;

[0028] Figure 3 for Figure 1 Middle BB section view;

[0029] Figure 4 is an exploded view of a flush valve device of the present invention;

[0030] Figure 5 It is a schematic diagram of an adapter of a flush valve device of the present invention;

[0031] Figure 6 It is a schematic diagram of a first valve body of a flush valve device of the present invention;

[0032] Figure 7 It is a schematic diagram of a second valve body of a flush valve device of the present invention;

[0033] Figure 8 This is one of the schematic diagrams of a guide member of a flush valve device of the present invention;

[0034] Fig. 9 This is a second schematic diagram of a guide member of a flush valve device of the present invention;

[0035] Fig.10 It is a schematic diagram of a first latch of a flush valve device of the present invention;

[0036] Fig.11 A schematic diagram of a second latch of a flush valve device of the present invention;

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

[0038] Combine the following Figure 1-11The present invention is described in detail.

[0039] A flush valve device, such as Figure 3 As shown, a first channel 401 and a second channel 402 are provided inside thereof, which are connected in sequence 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. A guide surface 502 is provided at the step difference to guide the water flow from the first channel 401 to the second channel 402, so that when the water in the first channel 401 hits the guide surface 502, its water flow direction is changed, and thus it flows to the second channel 402 under the guidance of the guide surface 502, thereby reducing the vortex generated in the flow channel and the force opposite to the water flow direction, thereby increasing the flow rate and flow velocity.

[0040] In this embodiment, Figure 8-Figure 9 As shown, it also includes a guide member 50 disposed at the step, and the side of the guide member 50 facing the first channel 401 forms a guide surface 502, and at least the guide surface 502 of the guide member 50 is made of an elastomeric material. When in use, when the water flow hits the guide surface 502, the guide surface 502 elastically deforms along the water flow to act as a buffer, thereby avoiding the recoil effect caused by the water flow directly hitting 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 hits the guide surface 502 is reduced.

[0041] In this embodiment, Figure 8 As shown, a plurality of reinforcing ribs 503 are arranged at intervals on the side of the guide surface 502 away from the first channel 401, and a buffer groove 504 is formed between two adjacent reinforcing ribs 503. When the guide surface 502 is impacted by the water flow, the guide surface 502 undergoes elastic deformation toward the buffer groove 504. When the water flow stops impacting the guide surface 502, the buffer groove 504 returns to its original state under the action of elastic force. The buffer groove 504 provides a larger deformation space for the elastic deformation that occurs when the water flow impacts the guide surface 502, further reducing the attenuation of the water flow speed when guiding the water flow. At the same time, the reinforcing ribs 503 provide support for the guide surface 502 to prevent the guide surface 502 from undergoing large-area elastic deformation when the guide surface 502 is impacted, so that the guide surfaces 502 corresponding to the plurality of buffer grooves 504 undergo elastic deformation successively, thereby expanding the buffering effect on the water flow. Furthermore, the reinforcing ribs 503 are made of an elastomeric material, and the guide surface 502 and the reinforcing ribs 503 are integrally injection molded.

[0042] In this embodiment, Fig. 9As shown, the guide surface 502 is an arc surface or a curved surface protruding toward the first channel 401. Specifically, the middle position of the guide surface 502 is protruding, so that the water flow near the middle of the first flow channel first hits the guide surface 502, and is first guided to the second flow channel by the guide surface 502, and 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 surfaces 502 corresponding to the buffer grooves 504 are elastically deformed one after another, realizing the partitioned diversion and further playing a buffering role.

[0043] In this embodiment, Figure 4 As shown, 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 may 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 to press the guide member 50 against the second valve body 30. The surface of the side of the guide member 50 provided with the buffer groove 504 is adapted to the surface of the second valve body 30.

[0044] In this embodiment, Fig. 9 As shown, a pressing surface 501 is provided at a portion of the guide member 50 facing the first channel 401, and the first valve body 10 abuts against the pressing surface 501, thereby pressing the guide member 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, thereby preventing the guide member 50 from being deformed by pressure and affecting the diversion effect.

[0045] In this embodiment, part of the guide member 50 is concavely adapted to the second valve body 30 through the positioning device. Further, the positioning device includes a plurality of positioning slots provided on the guide member 50, and positioning convex parts provided on the second valve body 30 and correspondingly adapted to the positioning slots, so that the guide member 50 can be quickly installed on the second valve body 30 on the premise of ensuring the correct guiding direction of the guide surface 502, thereby improving the installation efficiency. Specifically, the positioning slots include a positioning slot 505 provided on the top of the guide member 50 and a positioning hole 506 provided in the middle of the guide member 50, as shown in FIG. Figure 8 Correspondingly, the positioning protrusion includes a positioning rib and a positioning column provided on the second valve body 30 , 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, Figure 6-7As shown, the first valve body 10 is connected to one end of the second valve body 30 and is provided with a first fixing hole A701, and the second valve body 30 is provided with a first fixing hole B702 adapted to the first fixing hole A701; it also includes a first latch 601, and the first latch 601 is detachably plugged into the first fixing hole A701 and the first fixing hole B702 to connect the first valve body 10 and the second valve body 30, so that the first valve body 10 presses the guide member 50 against the second valve body 30.

[0047] In this embodiment, Figure 6 As shown, the first valve body 10 is connected to one end of the second valve body 30 and is provided with a positioning block 102. The second valve body 30 is provided with a positioning seat 301 adapted to the positioning block 102. The positioning block 102 is provided with a first fixing hole A701 extending therethrough, and the positioning seat 301 is provided with a first fixing hole B702 extending therethrough. Further, the positioning blocks 102 are located on both sides of the first valve body 10. There are four positioning seats 301. The positioning seats 301 are adapted to the two ends of the positioning block 102 in pairs. The first latch 601 passes through the first fixing hole B702 at one end of the first fixing hole A701, the first fixing hole A701, and the first fixing hole B702 at the other end of the first fixing hole A701 in sequence. Further, as Fig.10 As shown, the first latch 601 includes a cross bar 6011 , and a first plug pin 6012 and a second plug pin 6013 are respectively provided at both ends of the cross bar 6011 . The first plug pin 6012 and the second plug pin 6013 are respectively plugged into the first fixing holes A701 located on both sides of the first valve body 10 .

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

[0049] In this embodiment, Figure 5-6 As shown, the first valve body 10 is provided with a second fixing hole A801 ​​at one end away from the second valve body 30, and further includes a water inlet joint assembly, which is provided with a second fixing hole B802 adapted to the second fixing hole A801. It also includes a second latch 602, which is detachably plugged into the second fixing hole A801 ​​and the second fixing hole B802 to connect the first valve body 10 and the water inlet joint assembly.

[0050] In this embodiment, the water inlet joint assembly includes an adapter 201, such as Figure 5As shown, a plurality of plug-in posts 2011 are provided at one end of the adapter 201, a plug-in hole 1011 adapted to the plug-in post 2011 is provided at one end of the first valve body 10 away from the second valve body 30, each plug-in post 2011 is provided with a second fixing hole B802 along its radial direction, and the first valve body 10 is provided with a second fixing hole A801 ​​penetrating in the radial direction of each plug-in hole 1011. Figure 2 As shown, when the plug-in column 2011 is plugged into the plug-in hole 1011 , the second plug pin 602 passes through the second fixing hole A801 ​​above the plug-in hole 1011 , the second fixing hole B802 , and the second fixing hole A801 ​​below the plug-in hole 1011 in sequence.

[0051] In this embodiment, there are two plug-in columns 2011, and connecting blocks 101 are provided on both sides of the end of the first valve body 10 away from the second valve body 30, and the connecting block 101 is provided with a plug-in hole 1011 and a second fixing hole A801. Further, the second latch 602 includes a latch body 6021 and an anti-detachment portion 6022 connected to one end of the plug-in body, and the latch body 6021 is inserted through the second fixing hole A801 ​​and the second fixing hole B802. When the latch body 6021 is inserted through the second fixing hole A801 ​​and the second fixing hole B802, the anti-detachment portion 6022 is buckled at the orifice of the plug-in hole 1011 away from the end of the water inlet joint group, so as to prevent the second latch 602 from falling off during use, causing the adapter 201 to be separated from the first valve body 10.

[0052] Therefore, the second valve body 30 and the adapter 201 are connected to the two sides of the first valve body 10 through the first latch 601 and the second latch 602 respectively, and the adapter 201 and the second valve body 30 can be disassembled and assembled from the first valve body 10 by plugging and unplugging the first latch 601 and the second latch 602. Compared with the existing threaded connection, the connection method using the first latch 601 and the second latch 602 requires less space in the embedded box 130 and has a higher disassembly and assembly efficiency.

[0053] In this embodiment, Figure 2-4 As shown, the water inlet joint assembly further includes a water inlet joint body 202, which is connected to the other end of the adapter 201. Specifically, a threaded column 2012 is provided on the other side of the adapter 201, and a first gland nut 901 is provided on the outer sleeve of the water inlet joint body 202. The first gland nut 901 is threadably adapted to the threaded column 2012, thereby locking the water inlet joint body 202 to the adapter 201, and a washer is provided between the water inlet joint body 202 and the threaded column 2012.

[0054] In this embodiment, Figure 2-4As shown, the outlet end of the second valve body 30 is connected with a Dachong valve body joint 100. Specifically, a second gland nut 902 is provided on the outer sleeve of the Dachong valve body joint 100, and the second gland nut 902 is threadedly adapted to the outlet end of the second valve body 30, thereby connecting the Dachong valve body joint 100 to the second valve body 30. Further, a water outlet joint 120 is provided on the outer sliding sealing sleeve of the Dachong valve body joint 100, so that the position of the water outlet joint 120 is adjusted to adapt to the length of the reserved water outlet pipe. A one-way valve 110 opened in the water outlet direction is provided in the Dachong valve body joint 100, and a limiting step 1001 extending radially inward is also provided on the inner wall of the Dachong valve body joint 100, and the water outlet end of the one-way valve 110 abuts against the limiting step 1001 to prevent it from rushing out of the Dachong valve body joint 100 under the action of the water flow.

[0055] In this embodiment, Figure 2-4 As shown, it also includes an embedded box 130, and the embedded box 130 has a first mounting hole and a second mounting hole on opposite sides respectively. The flushing valve device is installed in the embedded box 130, and the water inlet joint group is passed through the first mounting hole, and the water outlet joint 120 is passed 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 their purpose is to enable those skilled in the art to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A flush valve device, characterized in that: A first channel and a second channel are provided inside the device, which are connected in sequence along the direction of water flow. The radial dimension of the outlet end of the first channel is greater 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. A guide surface is provided at the step difference to guide the water flow from the first channel to the second channel.

2. A flush valve device according to claim 1, characterized in that: It also includes a guide member arranged at the step difference, wherein the side of the guide member facing the first channel constitutes the guide surface, and at least the guide surface of the guide member is made of an elastomeric material.

3. A flush valve device as claimed in claim 2, characterized in that: A plurality of reinforcing ribs are spaced apart on one 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 water flow, the guide surface undergoes elastic deformation toward the buffer groove. When the water flow stops impacting the guide surface, the buffer groove returns to its original state under the action of elastic force.

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

5. A flush valve device according to any one of claims 2 to 4, characterized in that: The guide surface is an arc surface or a curved surface protruding toward the first channel.

6. A flush valve device as claimed in claim 3, characterized in that: The invention comprises a first valve body and a second valve body, wherein the first valve body is provided with the first channel, the second valve body is provided with the second channel, the guide surface faces the first valve body, the buffer groove faces the second valve body, the first valve body abuts against the guide surface so as to press the guide member against the second valve body, and the surface of the guide member on one side of which the buffer groove is provided is adapted to the surface of the second valve body.

7. A flush valve device as claimed in claim 6, characterized in that: A pressing surface is provided at a portion of the guide member 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 flush valve device as claimed in claim 6, characterized in that: A part of the guide member is concave-convexly adapted to the second valve body through a positioning device.

9. A flush valve device as claimed in claim 8, characterized in that: The positioning device includes a plurality of positioning grooves arranged on the guide member, and positioning protrusions arranged on the second valve body and correspondingly adapted to the positioning grooves one by one.

10. A flush valve device as claimed in claim 6, characterized in that: The first valve body is connected to one end of the second valve body and is provided with a first fixing hole A, and the second valve body is provided with a first fixing hole B adapted to the first fixing hole A; it also includes a first latch, 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 flush valve device according to claim 10, characterized in that: A second fixing hole A is provided at one end of the first valve body away from the second valve body; it also includes a water inlet joint group, which is provided with a second fixing hole B adapted to the second fixing hole A; it also includes a second latch, which is detachably plugged into the second fixing hole A and the second fixing hole B to connect the first valve body and the water inlet joint group.

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