Flow switching device

Abstract

The utility model discloses a flow switching device which comprises a flow switching body and a flow switching assembly. The flow switching body is provided with a water inlet channel, a water outlet channel and a switching cavity located between the water inlet channel and the water outlet channel, one side of the switching cavity is provided with a first water inlet flow channel and a second water inlet flow channel which are communicated with the water inlet channel, and the other side of the switching cavity is provided with a first water outlet flow channel and a second water outlet flow channel which are communicated with the water outlet channel; the flow switching assembly is arranged in the switching cavity, enables the first water inlet flow channel to be normally communicated with the first water outlet flow channel, and controls the second water inlet flow channel to be movably communicated with the second water outlet flow channel. According to the flow switching device, the water outlet flow is large when the flow switching device is in a large-flow water outlet state.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of kitchen and bath, especially a flow switching device. BACKGROUND

[0002] In order to save the flow of water in the waterway, achieve the purpose of saving water resources, people usually install flow switching device in waterway (such as shower), so that people can adjust the size of water flow according to the need when using.

[0003] The existing flow switching device generally adopts a water inlet channel, a large flow water outlet channel and a small flow water outlet channel which are in movable communication with the water inlet channel, and the switching of water outlet flow is realized by controlling the water inlet channel to selectively communicate with one of the large flow water outlet channel and the small flow water outlet channel.

[0004] In view of the above problems, it is necessary to study a flow switching device which has large water outlet flow in large flow water outlet state. SUMMARY

[0005] The utility model discloses a flow switching device which has large water outlet flow in large flow water outlet state.

[0006] In order to achieve the above purpose, the solution of the utility model is as follows:

[0007] A flow switching device includes a flow switching body and a flow switching assembly; the flow switching body has a water inlet channel, a water outlet channel and a switching cavity between the water inlet channel and the water outlet channel, the switching cavity is provided with a first water inlet channel and a second water inlet channel which are in communication with the water inlet channel on one side, and the switching cavity is provided with a first water outlet channel and a second water outlet channel which are in communication with the water outlet channel on the other side; the flow switching assembly is arranged in the switching cavity, the flow switching assembly makes the first water inlet channel and the first water outlet channel always communicate, and the flow switching assembly controls the second water inlet channel and the second water outlet channel to be in movable communication.

[0008] The flow switching assembly includes a switching valve seat and a switching valve core, the switching valve seat is installed in the switching cavity, a water passage which communicates with the first water inlet channel and the first water outlet channel is formed between the switching valve seat and the switching cavity, the switching valve seat is provided with a switching channel which communicates with the second water outlet channel and is in movable communication with the second water inlet channel, and the switching valve core is movably matched with the switching valve seat and controls whether the second water inlet channel and the switching channel communicate.

[0009] The sealing member is arranged between the switching valve seat and the switching cavity.

[0010] The reset spring is arranged between the switching valve core and the switching cavity, and is used for driving the switching valve core to move to a position where the switching valve core controls the second water inlet flow channel to be not communicated with the switching flow channel.

[0011] The switching valve core is provided with a limiting groove in which the reset spring is arranged, and the switching cavity is provided with a limiting column arranged in the reset spring.

[0012] The switching flow channel of the switching valve seat is provided with a switching port arranged along the moving direction of the switching valve core, and a water passing flow channel is formed between the switching valve seat and the switching cavity and communicates the switching port and the second water inlet flow channel; the switching valve core is provided with a switching head matched with a sealing gasket, and the switching head movably blocks the switching port.

[0013] The switching cavity is provided with a guide groove slidably connected with the switching head.

[0014] The guide groove is provided with a pressure relief hole, and the switching head is matched with a sealing ring in sealing cooperation with the guide groove.

[0015] The switching flow channel is provided with a communication port in communication with the inner wall of the switching port, and the communication port is in communication with the second water outlet flow channel.

[0016] The switching valve seat is provided with a movable channel in communication with the switching port, the switching valve core is slidably connected with the movable channel, and the switching valve core is matched with a sealing ring in sealing cooperation with the movable channel.

[0017] After the above scheme is adopted, the working principle of the flow switching device is as follows: in a normal state, the first water inlet flow channel and the first water outlet flow channel are always communicated, and the second water inlet flow channel and the second water outlet flow channel are not communicated; at this time, the water inlet channel of the flow switching body is communicated with the water outlet channel through the first water inlet flow channel and the first water outlet flow channel, and the flow switching device is in a small flow water outlet state; when the second water inlet flow channel and the second water outlet flow channel are communicated through the flow switching assembly; at this time, the water inlet channel of the flow switching body is communicated with the water outlet channel through the first water inlet flow channel and the first water outlet flow channel, and the water inlet channel of the flow switching body is also communicated with the water outlet channel through the second water inlet flow channel and the second water outlet flow channel, and the flow switching device is in a large flow water outlet state.

[0018] From above, the flow switching device of the utility model is in the large flow water outlet state, the water inlet channel of the flow switching body is communicated with the water outlet channel through the first water inlet flow channel and the first water outlet flow channel, and the water inlet channel of the flow switching body is also communicated with the water outlet channel through the second water inlet flow channel and the second water outlet flow channel, so that the flow area between the water inlet channel and the water outlet channel of the flow switching body is effectively increased, and the water outlet flow of the flow switching device of the utility model in the large flow water outlet state is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic diagram of the utility model.

[0020] Figure 2 It is the structure of the utility model Figure One .

[0021] Figure 3 It is the structure of the utility model Figure Two .

[0022] Figure 4 It is the section of the utility model in the small flow water outlet state Figure One .

[0023] Figure 5 It is the section of the utility model in the small flow water outlet state Figure Two .

[0024] Figure 6 It is the section of the utility model in the large flow water outlet state Figure One .

[0025] Figure 7 It is the section of the utility model in the large flow water outlet state Figure Two .

[0026] Label explanation:

[0027] Flow switching body 1, water inlet channel 11, water outlet channel 12, switching cavity 13, first water inlet flow channel 131, second water inlet flow channel 132, first water outlet flow channel 133, second water outlet flow channel 134, limiting column 135, guide groove 136, pressure relief hole 137,

[0028] Flow switching assembly 2, water flow channel 201, water flow channel 202,

[0029] Switching valve seat 21, switching flow channel 211, switching port 2111, communication port 2112, movable channel 212,

[0030] Switching valve core 22, switching head 221, sealing pad 2211, sealing ring 2212, limiting groove 222,

[0031] Reset spring 23,

[0032] Sealing ring 24,

[0033] Seal 3. DETAILED DESCRIPTION

[0034] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0035] As Figures 1 to 7 shown, the utility model discloses a flow switching device, it includes flow switching body 1 and flow switching assembly 2, wherein, flow switching body 1 has water inlet channel 11, water outlet channel 12 and be in water inlet channel 11 and water outlet channel 12 between switching cavity 13, switching cavity 13 one side is equipped with with water inlet channel 11 intercommunication's first water inlet flow channel 131 and second water inlet flow channel 132, switching cavity 13's other side is equipped with with water outlet channel 12 intercommunication's first water outlet flow channel 133 and second water outlet flow channel 134, flow switching assembly 2 sets up in switching cavity 13, flow switching assembly 2 makes first water inlet flow channel 131 with first water outlet flow channel 133 always intercommunication, flow switching assembly 2 controls second water inlet flow channel 132 with second water outlet flow channel 134 active intercommunication.

[0036] The working principle of the flow switching device of the utility model is as follows:

[0037] The flow switching device of the utility model is in normal state, first water inlet flow channel 131 with first water outlet flow channel 133 always intercommunication, and second water inlet flow channel 132 with second water outlet flow channel 134 are not interconnected, at this time, the water inlet channel 11 of flow switching body 1 is interconnected with water outlet channel 12 through first water inlet flow channel 131 and first water outlet flow channel 133, and the flow switching device of the utility model is in small flow water outlet state.

[0038] When second water inlet flow channel 132 with second water outlet flow channel 134 are interconnected through flow switching assembly 2, at this time, the water inlet channel 11 of flow switching body 1 is interconnected with water outlet channel 12 through first water inlet flow channel 131 and first water outlet flow channel 133, and the water inlet channel 11 of flow switching body 1 is also interconnected with water outlet channel 12 through second water inlet flow channel 132 and second water outlet flow channel 134, and the flow switching device of the utility model is in large flow water outlet state.

[0039] From above, the flow switching device of the utility model is in the large flow water outlet state, the water inlet channel 11 of the flow switching body 1 is communicated with the water outlet channel 12 through the first water inlet flow channel 131 and the first water outlet flow channel 133, and the water inlet channel 11 of the flow switching body 1 is also communicated with the water outlet channel 12 through the second water inlet flow channel 132 and the second water outlet flow channel 134, so that the flow area between the water inlet channel 11 and the water outlet channel 12 of the flow switching body 1 is effectively increased, and the water outlet flow of the flow switching device of the utility model in the large flow water outlet state is guaranteed.

[0040] In the embodiment of the utility model, the flow switching assembly 2 can include a switching valve seat 21 and a switching valve core 22; the switching valve seat 21 is installed in the switching cavity 13, a water flow channel 201 communicated with the first water inlet flow channel 131 and the first water outlet flow channel 133 is formed between the switching valve seat 21 and the switching cavity 13, the switching valve seat 21 is provided with a switching flow channel 211 communicated with the second water outlet flow channel 134 and movably communicated with the second water inlet flow channel 132, a sealing element 3 can be clamped between the switching valve seat 21 and the switching cavity 13 to prevent water leakage and waterway mutual stringing; the switching valve core 22 is movably matched with the switching valve seat 21 and controls whether the second water inlet flow channel 132 is communicated with the switching flow channel 211, thereby controlling whether the second water inlet flow channel 132 is movably communicated with the second water outlet flow channel 134.

[0041] In the embodiment of the utility model, the switching flow channel 211 of the switching valve seat 21 has a switching port 2111 arranged along the moving direction of the switching valve core 22, the switching flow channel 211 also has a communication port 2112 communicated with the inner wall of the switching port 2111, the communication port 2112 is communicated with the second water outlet flow channel 134, and the water flow channel 202 communicating the switching port 2111 and the second water inlet flow channel 132 is formed between the switching valve seat 21 and the switching cavity 13; and the switching valve core 22 has a switching head 221 matched with a sealing pad 2211, the switching head 221 movably blocks the switching port 2111 to control whether the switching port 2111 of the switching flow channel 211 is communicated with the second water inlet flow channel 132.

[0042] In the embodiment of the utility model, the reset spring 23 is arranged between the switching valve core 22 and the switching cavity 13, and is used for driving the switching valve core 22 to move to a position where the switching head 221 of the switching valve core 22 controls the second water inlet flow channel 132 to be not communicated with the switching flow channel 211. In the normal state, the switching valve core 22 is driven by the reset spring 23 to make the switching head 221 of the switching valve core 22 block the switching port 2111, so that the switching port 2111 of the switching flow channel 211 is not communicated with the second water inlet flow channel 132, and then the second water outlet flow channel 134 is not communicated with the second water inlet flow channel 132. When the switching valve core 22 is pressed, the switching valve core 22 overcomes the resistance of the reset spring 23 and moves to a position where the switching head 221 of the switching valve core 22 does not block the switching port 2111. At this time, the switching port 2111 of the switching flow channel 211 is communicated with the second water inlet flow channel 132, and then the second water outlet flow channel 134 is communicated with the second water inlet flow channel 132. At this time, the pressing on the switching valve core 22 is released, and the switching valve core 22 can be kept at the position where the switching head 221 does not block the switching port 2111 under the action of the water flow in the water flow channel 202. After that, if the water inlet channel 11 stops water inlet, the reset spring 23 drives the switching valve core 22 to move to the position where the switching head 221 of the switching valve core 22 blocks the switching port 2111.

[0043] In the embodiment of the utility model, the switching valve core 22 can be provided with a limiting groove 222 sleeving the reset spring 23, and the switching cavity 13 is provided with a limiting column 135 penetrating the reset spring 23, so that the reset spring 23 is limited by the limiting column 135 and the limiting groove 222 to prevent displacement.

[0044] In the embodiment of the utility model, the switching cavity 13 of the flow switching body 1 is provided with a guide groove 136 slidingly connecting with the switching head 221, so that the movement of the switching valve core 22 is guided to move stably. The guide groove 136 can be provided with a pressure relief hole 137, so that the pressing on the switching valve core 22 is more labor-saving. The switching head 221 is matched with a sealing ring 2212 sealingly cooperating with the guide groove 136 to prevent water leakage from the pressure relief hole 137.

[0045] In the embodiment of the utility model, the switching valve seat 21 can be provided with a movable channel 212 communicated with the switching port 2111, the switching valve core 22 is slidingly connected with the movable channel 212, so that the switching valve core 22 can be movably matched to the switching valve seat 21, and the switching valve core 22 is matched with a sealing ring 24 sealingly cooperating with the movable channel 212 to prevent water leakage from the movable channel 212.

[0046] The above embodiment and drawing are not limited to the product shape and style of the utility model, and any ordinary technical personnel in the technical field can make appropriate changes or modifications, which should be regarded as not departing from the patent category of the utility model.

Claims

1. A flow rate switching device, characterized in that: Includes the traffic switching body and traffic switching components; The flow switching body has an inlet channel, an outlet channel, and a switching cavity between the inlet channel and the outlet channel. One side of the switching cavity is provided with a first inlet flow channel and a second inlet flow channel that communicate with the inlet channel, and the other side of the switching cavity is provided with a first outlet flow channel and a second outlet flow channel that communicate with the outlet channel. The flow switching component is installed in the switching chamber. The flow switching component keeps the first inlet channel and the first outlet channel in constant communication, and controls the second inlet channel and the second outlet channel to be in active communication.

2. The flow switching device as described in claim 1, characterized in that: The flow switching assembly includes a switching valve seat and a switching valve core. The switching valve seat is installed in the switching chamber, and a water passage is formed between the switching valve seat and the switching chamber, which is connected to the first water inlet channel and the first water outlet channel. The switching valve seat is provided with a switching channel that is connected to the second water outlet channel and is movably connected to the second water inlet channel. The switching valve core is movably fitted to the switching valve seat and controls whether the second water inlet channel is connected to the switching channel.

3. The flow switching device as described in claim 2, characterized in that: A sealing element is sandwiched between the switching valve seat and the switching chamber.

4. The flow switching device as described in claim 2, characterized in that: A reset spring is provided between the switching valve core and the switching chamber. The reset spring is used to drive the switching valve core to a position where the switching valve core controls the second water inlet channel to be disconnected from the switching channel.

5. The flow switching device as described in claim 4, characterized in that: The switching valve core is provided with a limiting groove for housing a reset spring, and a limiting post is provided inside the switching cavity for passing through the reset spring.

6. The flow switching device as described in claim 2, characterized in that: The switching flow channel of the switching valve seat has a switching port arranged along the moving direction of the switching valve core, and a water passage connecting the switching port and the second water inlet flow channel is formed between the switching valve seat and the switching chamber. The switching valve core has a switching head fitted with a sealing gasket, and the switching head can be used to block the switching port.

7. The flow switching device as described in claim 6, characterized in that: The switching cavity is provided with a guide groove that slides with the switching head.

8. The flow switching device as described in claim 7, characterized in that: The guide groove is provided with a pressure relief hole; the switching head is fitted with a sealing ring that seals with the guide groove.

9. The flow switching device as described in claim 6, characterized in that: The switching channel has a communication port that communicates with the inner wall of the switching port, and the communication port is connected to the second water outlet channel.

10. The flow switching device as described in claim 6, characterized in that: The switching valve seat is provided with a movable channel communicating with the switching port, and the switching valve core is slidably connected to the movable channel and is fitted with a sealing ring that seals with the movable channel.

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