Equipped with a plastic flow channel featuring a thermostatic valve core and a position valve core.

Abstract

A plastic flow channel equipped with a thermostatic valve core and a gear shift valve core includes a flow channel body integrally molded from plastic material. The flow channel body has a first mounting cavity for mounting the thermostatic valve core and a second mounting cavity for mounting the gear shift valve core at both ends. The key feature is that the gear shift valve core has a gap with the wall of the second mounting cavity; the inlet of the gear shift valve core is located on its side; the outlet of the gear shift valve core is located at its bottom; the flow channel body has a mixing channel and at least two outlet channels; one end of the mixing channel communicates with the first mounting cavity; the other end of the mixing channel communicates with the inlet of the gear shift valve core via the second mounting cavity; and the plurality of outlet channels communicate with the outlets of the gear shift valve cores respectively. The gear shift valve core assembled in this plastic flow channel has a larger inlet and outlet area. Compared to a bottom-inlet / bottom-outlet gear shift valve core, the plastic flow channel of the same size has a larger flow rate, resulting in better performance.

Description

Technical Field

[0001] This utility model relates to the field of faucet technology, and in particular to a plastic flow channel equipped with a thermostatic valve core and a gear valve core. Background Technology

[0002] With the improvement of living standards, thermostatic faucets have been widely used in bathroom products. To avoid accidental scalding from the high temperature of thermostatic faucets, they are equipped with a plastic flow channel. This channel prevents water from directly contacting the metal casing of the faucet, thus effectively insulating it. The existing plastic flow channel has a thermostatic valve core and a dispensing valve core at each end. The thermostatic valve core adjusts the mixing ratio of hot and cold water, maintaining the temperature of the mixed water at the set temperature. The dispensing valve core controls the flow of mixed water from the desired outlet, meeting the multi-functional water dispensing needs of the thermostatic faucet.

[0003] Existing plastic flow channels, as shown in Chinese Utility Model Patent No. CN202220766274.1 (Authorization Announcement No. CN217108461U), include a body integrally molded from plastic material. A thermostatic valve core is inserted at the first end of the body, and a water distribution valve core is inserted at the second end of the body. The thermostatic valve core is connected to a cold water inlet and a hot water inlet. The two ends of the water inlet channel are respectively connected to the outlet of the thermostatic valve core and the inlet of the water distribution valve core. The water distribution valve core is connected to each water outlet channel, thereby increasing the flow time of the mixed water within the body and making the cold and hot water mix more evenly.

[0004] However, existing gear shift valve cores are often assembled with plastic flow channels using a bottom-inlet and bottom-outlet design. This means the inlet and outlet of the valve core are both concentrated at the bottom, resulting in a small inlet and outlet area, which affects the flow rate of each outlet channel in the plastic flow channel. Therefore, further improvements are needed for plastic flow channels equipped with thermostatic valve cores and gear shift valve cores. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a plastic flow channel with a reasonable structure and equipped with a thermostatic valve core and a gear valve core, in view of the above-mentioned existing technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: The plastic flow channel equipped with a thermostatic valve core and a gear valve core includes a flow channel body integrally formed from plastic material. The two ends of the flow channel body are respectively provided with a first mounting cavity for mounting the thermostatic valve core and a second mounting cavity for mounting the gear valve core. The characteristic is that: there is a gap between the gear valve core and the wall of the second mounting cavity; the water inlet of the gear valve core is located on its side; the water outlet of the gear valve core is located at its bottom; the flow channel body is provided with a mixing flow channel and at least two water outlet flow channels; one end of the mixing flow channel is connected to the first mounting cavity; the other end of the mixing flow channel is connected to the water inlet of the gear valve core through the second mounting cavity; and the plurality of water outlet flow channels are correspondingly connected to the water outlets of the gear valve core.

[0007] Furthermore, the bottom of the second mounting cavity is provided with at least three water passage holes. One of the water passage holes is connected to the end of the mixing channel, and the remaining water passage holes are connected to the corresponding water outlet channels. The mixed water flowing out of the mixing channel flows into the gap between the second mounting cavity and the gear valve core through the water passage holes, and then flows into the gear valve core through the water inlet.

[0008] Furthermore, the valve core is sealed to the second mounting cavity, and the valve core is mounted on the flow channel body to form a sealed cavity in the second mounting cavity. The sealed cavity prevents mixed water from leaking from the inside of the plastic flow channel.

[0009] Furthermore, a first sealing ring is provided on the side of the gear position valve core, which can seal the gap between the gear position valve core and the second mounting cavity wall.

[0010] Furthermore, a second sealing ring is provided at the outlet of the gear valve core. This second sealing ring can block the connection between the outlet and the corresponding water flow channel. The second sealing ring prevents the mixed water flowing out of the gear valve core outlet from flowing into other water flow channels, and also prevents the mixed water flowing out of the gear valve core outlet from flowing into the inlet.

[0011] Furthermore, the flow channel body is also provided with a cold water inlet and a hot water inlet, which are connected to the first mounting cavity. The cold water flowing in from the cold water inlet and the hot water inlet mixes with the thermostatic valve core in the first mounting cavity to form mixed water.

[0012] Furthermore, the flow channel body is provided with a cold water inlet channel, the two ends of which are respectively connected to a cold water inlet and a first mounting cavity. The hot water inlet is located on the wall of the first mounting cavity and is directly connected to the first mounting cavity. The cold water inlet is indirectly connected to the first mounting cavity through the cold water inlet channel, while the hot water inlet is directly connected to the first mounting cavity.

[0013] Furthermore, the cold water inlet is positioned away from the first mounting cavity. This distance lowers the temperature of the plastic flow channel, preventing burns to the user from excessive heat.

[0014] Furthermore, the bottom of the gear valve core is provided with a positioning post, and the bottom of the second mounting cavity is provided with a positioning groove corresponding to the positioning post. The cooperation between the positioning post and the positioning groove enables the outlet of the gear valve core to be aligned with each water outlet channel before installation in the second mounting cavity.

[0015] Compared with the prior art, the advantages of this utility model are as follows: the plastic flow channel can be used to install a side-inlet, bottom-outlet valve core. That is, the mixed water after mixing by the thermostatic valve core flows into the second mounting cavity through the mixing flow channel. The mixed water in the second mounting cavity flows in from the inlet on the side of the valve core and flows out from the outlet at the bottom of the valve core. Therefore, the inlet and outlet areas of the valve core are larger. Compared with the bottom-inlet, bottom-outlet valve core, the plastic flow channel of the same size has a larger flow rate under the action of the valve core, and the plastic flow channel has a better performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the flow channel body in an embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional view of the flow channel body in an embodiment of this utility model;

[0019] Figure 4 This is a cross-sectional view of the flow channel body in an embodiment of this utility model from another perspective;

[0020] Figure 5 This is a schematic diagram of the gear valve core in an embodiment of the present invention. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-5 The figure shown is the preferred embodiment of this utility model.

[0023] The plastic flow channel in this embodiment includes a flow channel body 1 integrally formed from plastic material. The two ends of the flow channel body 1 are respectively provided with a first mounting cavity 11 for mounting a thermostatic valve core 2 and a second mounting cavity 12 for mounting a gear valve core 3. The flow channel body 1 is provided with a cold water inlet 1a and a hot water inlet 1b, which are connected to the first mounting cavity 11. Furthermore, the main body 1 of the flow channel is provided with a cold water inlet channel 15. The two ends of the cold water inlet channel 15 are respectively connected to the cold water inlet 1a and the first mounting cavity 11. The hot water inlet 1b is located on the wall of the first mounting cavity 11 and is directly connected to the first mounting cavity 11. Cold water flows into the thermostatic valve core 2 of the first mounting cavity 11 through the cold water inlet 1a and the cold water inlet channel 15. Hot water flows directly into the thermostatic valve core 2 of the first mounting cavity 11 through the hot water inlet 1b. The thermostatic valve core 2 mixes the cold water and hot water in a certain proportion to form mixed water. Furthermore, the cold water inlet 1a is located away from the first mounting cavity 11 to prevent the flow channel main body 1 from being too hot and scalding the user.

[0024] In this embodiment, the flow channel body 1 is further provided with a mixing channel 13 and two outlet channels 14. One end of the mixing channel 13 is connected to the first mounting cavity 11, and the other end of the mixing channel 13 is connected to the inlet 31 of the gear valve core 3 via the second mounting cavity 12. Multiple outlet channels 14 are connected to the outlets 32 of the gear valve core 3. That is, the mixed water flowing out of the thermostatic valve core 2 flows into the gear valve core 3 of the second mounting cavity 12 through the mixing channel 13. The gear valve core 3 selects the appropriate outlet 32, so that the mixed water flows out from the corresponding outlet 32 ​​and outlet channel 14. Furthermore, the bottom of the second mounting cavity 12 is provided with three water passage holes 121. One water passage hole 121 is connected to the end of the mixing channel 13, and the other water passage holes 121 are connected to the corresponding outlet channels 14.

[0025] In this embodiment, the gear valve core 3 and the wall of the second mounting cavity 12 have a gap, which allows mixed water to flow into the second mounting cavity 12 through the water passage 121, thereby flowing in from the water inlet 31 on the side of the gear valve core 3. A first sealing ring 4 is provided on the side of the gear valve core 3. The first sealing ring 4 can seal the gap between the gear valve core 3 and the wall of the second mounting cavity 12, so that the gear valve core 3 and the second mounting cavity 12 are sealed together. The gear valve core 3 is installed on the flow channel body 1, so that the second mounting cavity 12 forms a sealed cavity, thereby preventing the mixed water from leaking from the inside of the flow channel body 1. Furthermore, the water inlet 31 of the gear valve core 3 is provided on its side, and the water outlet 32 ​​of the gear valve core 3 is provided at its bottom. A second sealing ring 5 is provided at the water outlet 32 ​​of the gear valve core 3. The second sealing ring 5 can seal the connection between the water outlet 32 ​​and the corresponding water outlet flow channel 14. The second sealing ring 5 prevents the mixed water flowing out of the water outlet 32 ​​of the gear valve core 3 from flowing into other water outlet flow channels 14, and also prevents the mixed water flowing out of the water outlet 32 ​​of the gear valve core 3 from flowing into the water inlet 31. In addition, the bottom of the gear valve core 3 in this embodiment is provided with a positioning post 33, and the bottom of the second mounting cavity 12 is provided with a positioning groove 122 corresponding to the positioning post 33. The cooperation between the positioning post 33 and the positioning groove 122 enables the outlet 32 ​​of the gear valve core 3 to be aligned with each water outlet channel 14 and then installed in the second mounting cavity 12.

[0026] The workflow of this embodiment is as follows:

[0027] A. Cold water flows into the thermostatic valve core 2 of the first mounting cavity 11 through the cold water inlet 1a and the cold water inlet channel 15, and hot water flows directly into the thermostatic valve core 2 of the first mounting cavity 11 through the hot water inlet 1b. The thermostatic valve core 2 mixes the cold water and hot water in a certain proportion to form mixed water.

[0028] B. The mixed water flowing out of the thermostatic valve core 2 flows into the second mounting cavity 12 through the mixing channel 13 and a water passage 121. The mixed water in the second mounting cavity 12 then flows in from the water inlet 31 on the side of the gear valve core 3.

[0029] C. According to the user's needs, use the gear valve core 3 to select the corresponding water outlet 32, so that the mixed water flows out of the flow channel body 1 from the corresponding water outlet 32 ​​and the water outlet 14.

Claims

1. A plastic flow channel equipped with a thermostatic valve core and a gear valve core, comprising a flow channel body (1) integrally molded from plastic material, wherein the two ends of the flow channel body (1) are respectively provided with a first mounting cavity (11) for mounting the thermostatic valve core (2) and a second mounting cavity (12) for mounting the gear valve core (3), characterized in that: The gear valve core (3) has a gap with the wall of the second mounting cavity (12). The water inlet (31) of the gear valve core (3) is located on its side, and the water outlet (32) of the gear valve core (3) is located at its bottom. The flow channel body (1) is provided with a mixing flow channel (13) and at least two water outlet channels (14). One end of the mixing flow channel (13) is connected to the first mounting cavity (11), and the other end of the mixing flow channel (13) is connected to the water inlet (31) of the gear valve core (3) through the second mounting cavity (12). The multiple water outlet channels (14) are connected to the water outlets (32) of the gear valve core (3).

2. The plastic flow channel according to claim 1, characterized in that: The bottom of the second mounting cavity (12) is provided with at least three water passage holes (121). One of the water passage holes (121) is connected to the end of the mixing channel (13), and the other water passage holes (121) are connected to the corresponding water outlet channels (14).

3. The plastic flow channel according to claim 1, characterized in that: The gear valve core (3) is sealed to the second mounting cavity (12), and the gear valve core (3) is installed on the flow channel body (1) so that the second mounting cavity (12) forms a sealed cavity.

4. The plastic flow channel according to claim 3, characterized in that: The gear valve core (3) is provided with a first sealing ring (4) on its side, which can seal the gap between the gear valve core (3) and the wall of the second mounting cavity (12).

5. The plastic flow channel according to claim 3, characterized in that: The valve core (3) has a second sealing ring (5) at the outlet (32), which can block the connection between the outlet (32) and the corresponding water flow channel (14).

6. The plastic flow channel according to any one of claims 1 to 5, characterized in that: The flow channel body (1) is also provided with a cold water inlet (1a) and a hot water inlet (1b), which are connected to the first mounting cavity (11).

7. The plastic flow channel according to claim 6, characterized in that: The flow channel body (1) is provided with a cold water inlet flow channel (15), and the two ends of the cold water inlet flow channel (15) are respectively connected to the cold water inlet (1a) and the first mounting cavity (11). The hot water inlet (1b) is located on the wall of the first mounting cavity (11) and is directly connected to the first mounting cavity (11).

8. The plastic flow channel according to claim 7, characterized in that: The cold water inlet (1a) is located away from the first mounting cavity (11).

9. The plastic flow channel according to claim 1, characterized in that: The bottom of the gear valve core (3) is also provided with a positioning post (33), and the bottom of the second mounting cavity (12) is provided with a positioning groove (122) corresponding to the positioning post (33).

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