Large-flow plastic runner used in cooperation with valve element

Abstract

A large-flow plastic flow channel used in cooperation with a valve element comprises a flow channel body which is arranged in a metal shell and integrally formed by plastic materials, the left end of the flow channel body is provided with a first installation cavity used for installing a shunt valve element, and the right end of the flow channel body is provided with a second installation cavity used for installing a constant-temperature valve element. The first mounting cavity is communicated with the second mounting cavity through a mixed water flow channel; the water diversion valve is characterized in that the water diversion valve element comprises a valve plate assembly, a valve deck and a valve rod, the valve plate assembly is directly installed in the first installation cavity, the valve deck can be detached from the opening end of the first installation cavity, and the valve rod is arranged on the valve deck in a penetrating mode and connected with the valve plate assembly. Compared with the prior art, the water diversion valve element has the advantages that a valve shell is omitted, and the valve plate assembly of the water diversion valve element is directly mounted in the first mounting cavity, so that the size of the valve plate assembly is increased, the size of the water outlet in the valve plate assembly is increased, the water passing amount of the flow channel body is increased, and the service life of the water diversion valve element is prolonged. And the runner body is reasonable in structure and higher in space utilization rate.

Description

Technical Field

[0001] The utility model relates to a faucet for a bathroom, in particular to a large-flow plastic flow channel matched with a valve core. Background Art

[0002] With the improvement of living standards, thermostatic faucets have been widely used in bathroom products. Thermostatic faucets can automatically adjust the mixing ratio of hot and cold water, so that the temperature of the mixed water can be automatically maintained at the set temperature. At present, the shower device in the bathroom often has a faucet, an overhead shower, and a hand shower. Therefore, the thermostatic faucet is usually equipped with a water diversion valve core that can switch between the three, so that the thermostatic faucet can not only adjust the water temperature, but also adjust the water outlet, thereby meeting the multi-functional water outlet requirements of the thermostatic faucet.

[0003] The existing thermostatic faucet, as shown in the Chinese utility model "A three-outlet anti-scalding thermostatic faucet" with patent number CN202222064686.3 (authorization announcement number CN218236248U), includes a plastic body, a thermostatic valve core, and a water diversion valve core, wherein a thermostatic valve core cavity and a water diversion valve core cavity are respectively provided at both ends of the plastic body, the thermostatic valve core is installed in the thermostatic valve core cavity, the water diversion valve core is installed in the water diversion valve core cavity, the water inlet of the water diversion valve core is arranged on the side, and the water outlet is arranged on the bottom; and a mixing water inlet channel and three mixing water outlet channels are provided in the plastic body, the two ends of the mixing water inlet channel are respectively connected to the water outlet end of the thermostatic valve core and the water inlet end of the water diversion valve core, and the three mixing water outlet channels are respectively connected to the three water outlet ends of the water diversion valve core. Therefore, the thermostatic faucet has a simple structure, which not only improves the anti-scalding effect, but also has three mixing water outlets, meeting the needs of multi-functional water outlet.

[0004] Although the above-mentioned thermostatic faucet realizes the switching of three water outlets through the water-dividing valve core, the water-dividing valve core includes components such as valve housing, movable valve plate and fixed valve plate. The movable valve plate and fixed valve plate need to be installed in the valve housing, and then installed into one end of the plastic flow channel through the valve housing. Since the valve housing will occupy a certain space for installing the water-dividing valve core, the movable valve plate and the fixed valve plate are smaller in size, which in turn leads to a smaller water output from the outlets on the movable valve plate and the fixed valve plate. In addition, the smaller movable valve plate and the fixed valve plate are not convenient for production personnel to design thermostatic faucets with multiple water channels, and may complicate the water channel flow direction in the plastic flow channel, thereby affecting the use effect of the thermostatic faucet. For this reason, further improvements are needed for the large-flow plastic flow channel used in conjunction with the valve core. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a large-flow plastic flow channel which is reasonably structured and can increase the water flow rate in the same space and is used in conjunction with a valve core in view of the above-mentioned existing technical status.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: it includes a flow channel body integrally formed of plastic material arranged inside a metal shell, the left end of the flow channel body is provided with a first installation cavity for installing a water diversion valve core, the right end of the flow channel body is provided with a second installation cavity for installing a thermostatic valve core, the first installation cavity is connected to the second installation cavity through a mixing water flow channel; it is characterized in that: the water diversion valve core includes a valve plate assembly, a valve cover and a valve stem, the valve plate assembly is directly installed in the first installation cavity, the valve cover can be detached from the mouth of the first installation cavity, and the valve stem is passed through the valve cover and connected to the valve plate assembly.

[0007] In order to make the valve cover detachable from the opening of the first installation cavity, preferably, the valve cover is snap-connected to the opening of the first installation cavity, or the valve cover is threadedly connected to the opening of the first installation cavity. Both snap-connection and threaded connection can make the valve cover detachable from the opening of the first installation cavity.

[0008] Furthermore, the valve cover is provided with two axially extending connecting walls, the connecting walls are provided with a clamping hole, the outer peripheral wall of the first installation cavity is provided with a protruding clamping portion for clamping into the clamping hole, and the valve cover is connected to the flow channel body through the clamping of the clamping portion and the clamping hole. Through the cooperation of the clamping portion and the clamping hole, the valve cover can be detached from the mouth end of the first installation cavity.

[0009] In order to make the valve cover more accurately connected to the flow channel body, preferably, the peripheral wall of the first installation cavity extends to the left to form a connecting ear, and the valve cover is provided with a slot for the connecting ear to be inserted. The connecting ear is inserted into the slot to guide the installation of the valve cover.

[0010] In order to enable the valve plate assembly to adjust the water outlet waterway, preferably, a stop block is provided in the first installation cavity, and a groove corresponding to the stop block is provided on the fixed valve plate of the valve plate assembly, and the cooperation between the groove and the stop block can prevent the fixed valve plate from rotating relative to the first installation cavity. The valve plate assembly includes a fixed valve plate and a movable valve plate, and the fixed valve plate is fixed in the first installation cavity by the stop block, and the movable valve plate can rotate relative to the fixed valve plate, thereby controlling the water outlet waterway of the flow channel body.

[0011] In order to allow the flow channel body to take in cold water and hot water for mixing, preferably, a first water inlet and a second water inlet are provided on the side wall of the flow channel body, and the first water inlet and the second water inlet are both connected to the second installation cavity; a water inlet channel with one end connected to the first water inlet is also provided in the flow channel body, and the other end of the water inlet channel is connected to the second installation cavity, and the cold water flowing in from the first water inlet flows to the second installation cavity through the water inlet channel and mixes with the hot water flowing in from the second water inlet.

[0012] In order to enable the flow channel body to flow out the mixed water, preferably, the side wall of the flow channel body is also provided with a first water outlet, a second water outlet and a third water outlet for discharging the mixed water, and the first water outlet, the second water outlet and the third water outlet are all connected to the first installation cavity.

[0013] Furthermore, three water outlet channels are arranged around the mixed water channel in the flow channel body, one end of the three water outlet channels are respectively connected to the first water outlet, the second water outlet and the third water outlet, and the other end of the three water outlet channels are connected to the first installation cavity. The water diversion valve core in the first installation cavity switches among the three water outlet channels to select a corresponding water outlet channel, so that the mixed water flows out from the corresponding water outlet.

[0014] Compared with the prior art, the advantages of the present invention are: by arranging a first installation cavity for installing a water diversion valve core at the left end of the flow channel body, the water diversion valve core omits the valve housing component, and the valve plate assembly of the water diversion valve core is directly installed in the first installation cavity, thereby increasing the size of the valve plate assembly, thereby increasing the size of the water outlet on the valve plate assembly, and increasing the water flow rate of the flow channel body, which not only improves the use efficiency of the flow channel body, but also saves the parts of the water diversion valve core and valve housing, reduces the production cost of the thermostatic faucet, and makes the structure of the flow channel body reasonable and the space utilization rate higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the embodiment of the utility model in cooperation with the water diversion valve core and the thermostatic valve core;

[0016] Figure 2 It is a structural schematic diagram of an embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of an embodiment of the utility model at another viewing angle;

[0018] Figure 4 It is an exploded schematic diagram of the embodiment of the utility model and the water diversion valve core;

[0019] Figure 5 It is a cross-sectional view of an embodiment of the utility model along the direction of the first water inlet and the second water inlet;

[0020] Figure 6 It is a cross-sectional view of an embodiment of the utility model along the direction of the first water outlet and the third water outlet;

[0021] Figure 7 This is a schematic diagram of the structure of the embodiment of the utility model installed in a metal housing;

[0022] Figure 8 This is a cross-sectional view of an embodiment of the utility model installed in a metal housing. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 8 Shown is the best embodiment of the utility model.

[0025] like Figures 1 to 8 As shown, the large-flow plastic flow channel used in conjunction with the valve core of this embodiment includes a flow channel body 2 formed of a plastic material in one piece and arranged inside a metal shell 1. The left end of the flow channel body 2 is provided with a first installation cavity 21 for installing the water-dividing valve core 3, and the right end of the flow channel body 2 is provided with a second installation cavity 22 for installing the thermostatic valve core 4. The first installation cavity 21 is connected with the second installation cavity 22 through a mixed water flow channel 23; wherein, the water-dividing valve core 3 includes a valve plate assembly 31, a valve cover 32 and a valve stem 33, wherein the valve plate assembly 31 is directly installed in the first installation cavity 21, the valve cover 32 can be detached from the mouth end 211 of the first installation cavity 21, and the valve stem 33 is passed through the valve cover 32 and connected to the valve plate assembly 31. The flow channel body 2 can make the water-dividing valve core 3 not need to be installed with a valve shell, save the parts of the valve shell, increase the size of the water outlet on the valve plate assembly 31, thereby increasing the water flow of the flow channel body 2, making the structure of the flow channel body 2 reasonable and the space utilization rate higher.

[0026] The valve cover 32 is snap-connected to the opening 211 of the first installation cavity 21, or the valve cover 32 is threadedly connected to the opening 211 of the first installation cavity 21. In this embodiment, the valve cover 32 is installed at the opening 211 of the first installation cavity 21 by snap-connection. Figures 2 to 4 As shown, the valve cover 32 is provided with two axially extending connecting walls 321, and a clamping hole 322 is opened on the connecting wall 321. A protruding clamping portion 24 for clamping into the clamping hole 322 is provided on the outer peripheral wall of the first installation cavity 21. The valve cover 32 is connected to the flow channel body 2 through the clamping of the clamping portion 24 and the clamping hole 322. In addition, the peripheral wall of the first installation cavity 21 extends to the left to form a connecting ear 212, and the valve cover 32 is provided with a clamping groove 323 for inserting the connecting ear 212. The connecting ear 212 is inserted into the clamping groove 323, which can guide the installation of the valve cover 32. In addition, a stop block 25 is provided in the first installation cavity 21, and the valve plate assembly 31 includes a fixed valve plate 311 and a movable valve plate 313. The movable valve plate 313 can rotate relative to the fixed valve plate 311 to change the water path of the flow channel body 2, wherein a groove 312 corresponding to the stop block 25 is provided on the fixed valve plate 311, and the cooperation between the groove 312 and the stop block 25 can prevent the fixed valve plate 311 from rotating relative to the first installation cavity 21.

[0027] like Figure 5 and Figure 6As shown, the side wall of the flow channel body 2 is provided with a first water inlet 2a and a second water inlet 2b, and the first water inlet 2a and the second water inlet 2b are both connected to the second installation cavity 22; the flow channel body 2 is also provided with a water inlet channel 26, one end of which is connected to the first water inlet 2a, and the other end of the water inlet channel 26 is connected to the second installation cavity 22, and the cold water flowing into the first water inlet 2a flows through the water inlet channel 26 to the second installation cavity 22 and mixes with the hot water flowing into the second water inlet 2b. The cold water and the hot water are mixed in a certain proportion in the thermostatic valve core 4 of the second installation cavity 22 to form mixed water of a set temperature, and the mixed water flows from the mixed water flow channel 23 to the first installation cavity 21. In addition, the side wall of the flow channel body 2 is also provided with a first water outlet 2c, a second water outlet 2d and a third water outlet 2e for discharging mixed water, and the first water outlet 2c, the second water outlet 2d and the third water outlet 2e are all connected to the first installation cavity 21. Three water outlet channels 27 are arranged around the mixed water channel 23 in the flow channel body 2, one end of the three water outlet channels 27 is respectively connected to the first water outlet 2c, the second water outlet 2d and the third water outlet 2e, and the other end of the three water outlet channels 27 is connected to the first installation cavity 21. By switching the valve plate assembly 31 of the water diversion valve core 3, the mixed water flows out from one of the first water outlet 2c, the second water outlet 2d and the third water outlet 2e through the water outlet channel 27.

[0028] The workflow of this embodiment is:

[0029] A. The valve cover 32 of the water-dividing valve core 3 is connected to the flow channel body 2 by the snap fit of the snap buckle portion 24 and the snap hole 322, and the connecting ear 212 of the first installation cavity 21 is inserted into the snap groove 323 of the valve cover 32, and the anti-rotation block 25 is inserted into the groove 312 of the fixed valve plate 311, so that the connection between the water-dividing valve core 3 and the flow channel body 2 is completed, so that the valve core assembly 31 of the water-dividing valve core 3 is directly installed in the first installation cavity 21;

[0030] B. Then install the thermostatic valve core 4 in the second installation cavity 22, and install the flow channel body 2 connected to the thermostatic valve core 4 and the water diversion valve core 3 at both ends into the metal shell 1, and complete the installation of the thermostatic faucet;

[0031] C. When the user needs to discharge water, cold water flows in from the first water inlet 2a, flows into the thermostatic valve core 4 of the second installation cavity 22 through the water inlet channel 26, and hot water flows directly into the thermostatic valve core 4 of the second installation cavity 22 from the second water inlet 2b. In the thermostatic valve core 4 of the second installation cavity 22, the cold water and the hot water are mixed in a certain proportion to form mixed water of the set temperature; the mixed water flows from the mixed water flow channel 23 to the first installation cavity 21, and through the switching of the water diversion valve core 3 of the first installation cavity 21, the mixed water flows out from one of the first water outlet 2c, the second water outlet 2d and the third water outlet 2e through the water outlet channel 27.

Claims

1. A large-flow plastic flow channel used in conjunction with a valve core, comprising a flow channel body (2) formed integrally of a plastic material and arranged inside a metal shell (1), wherein the left end of the flow channel body (2) is provided with a first installation cavity (21) for installing a water-dividing valve core (3), and the right end of the flow channel body (2) is provided with a second installation cavity (22) for installing a thermostatic valve core (4), and the first installation cavity (21) and the second installation cavity (22) are connected through a water mixing flow channel (23); characterized in that: The water diversion valve core (3) comprises a valve plate assembly (31), a valve cover (32) and a valve stem (33); the valve plate assembly (31) is directly mounted in the first mounting cavity (21); the valve cover (32) is detachable from the mouth (211) of the first mounting cavity (21); and the valve stem (33) is inserted through the valve cover (32) and connected to the valve plate assembly (31).

2. The large flow plastic flow channel used in conjunction with the valve core according to claim 1, characterized in that: The valve cover (32) is snap-connected to the opening end (211) of the first installation cavity (21), or the valve cover (32) is threadedly connected to the opening end (211) of the first installation cavity (21).

3. The large flow plastic flow channel used in conjunction with the valve core according to claim 1, characterized in that: The valve cover (32) is provided with two axially extending connecting walls (321), a clamping hole (322) is opened on the connecting wall (321), and a protruding clamping portion (24) for clamping into the clamping hole (322) is provided on the outer peripheral wall of the first installation cavity (21), and the valve cover (32) is connected to the flow channel body (2) by clamping the clamping portion (24) and the clamping hole (322).

4. The large flow plastic flow channel used in conjunction with the valve core according to claim 3 is characterized in that: The peripheral wall of the first installation cavity (21) extends leftward to form a connecting ear (212), and the valve cover (32) is provided with a slot (323) for inserting the connecting ear (212).

5. The large flow plastic flow channel used in conjunction with the valve core according to claim 1, characterized in that: A stop block (25) is provided in the first installation cavity (21), and a groove (312) corresponding to the stop block (25) is provided on the fixed valve plate (311) of the valve plate assembly (31), and the groove (312) cooperates with the stop block (25) to prevent the fixed valve plate (311) from rotating relative to the first installation cavity (21).

6. The large flow plastic flow channel used in conjunction with the valve core according to claim 1, characterized in that: A first water inlet (2a) and a second water inlet (2b) are provided on the side wall of the flow channel body (2), and the first water inlet (2a) and the second water inlet (2b) are both connected to the second installation cavity (22); a water inlet channel (26) is also provided in the flow channel body (2), one end of which is connected to the first water inlet (2a), and the other end of the water inlet channel (26) is connected to the second installation cavity (22); cold water flowing in from the first water inlet (2a) flows through the water inlet channel (26) to the second installation cavity (22) and is mixed with hot water flowing in from the second water inlet (2b).

7. The large flow plastic flow channel used in conjunction with the valve core according to claim 1, characterized in that: A first water outlet (2c), a second water outlet (2d) and a third water outlet (2e) for discharging mixed water are also provided on the side wall of the flow channel body (2); the first water outlet (2c), the second water outlet (2d) and the third water outlet (2e) are all in communication with the first installation cavity (21).

8. The large flow plastic flow channel used in conjunction with the valve core according to claim 7, characterized in that: Three water outlet channels (27) are arranged around the mixed water channel (23) in the channel body (2); one end of the three water outlet channels (27) is respectively connected to the first water outlet (2c), the second water outlet (2d) and the third water outlet (2e); and the other end of the three water outlet channels (27) is connected to the first installation cavity (21).

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