Anti-freezing water distribution core

Abstract

The anti-freezing water distribution core comprises a main body, the rear end of the main body is provided with a cold water inlet channel communicated with a cold water port and a hot water inlet channel communicated with a hot water port, one end of the main body is provided with a thermostatic valve core cavity used for installing a thermostatic valve core, and the other end of the main body is provided with a shunt valve core cavity used for installing a shunt valve core. A water mixing channel and a water outlet are formed in the main body, the two ends of the water mixing channel are communicated with the constant-temperature valve element cavity and the shunt valve element cavity respectively, the water outlet is communicated with the water mixing channel through a shunt valve element, and a first shrinkage cavity communicated with the constant-temperature valve element cavity is formed in the bottom of the constant-temperature valve element cavity; and a first elastic rubber block for releasing pressure is mounted in the first contraction cavity. The technical scheme of the utility model has the technical effects that the structure is simple, the design is reasonable, and the main body can be effectively prevented from frost cracking.

Description

Technical Field

[0001] The utility model relates to the technical field of faucet fittings, in particular to an anti-freezing water distribution core. Background Art

[0002] After the traditional shower faucet is used up, there is often water remaining in its inner cavity that has not been drained. In a cold environment, especially when traveling or just finishing renovation and needing ventilation, and in a house where no one has lived for a long time, the faucet is affected by the external low-temperature environment, and the water remaining in the inner cavity of the faucet is easy to freeze. Since the freezing process is a process of volume expansion, the ice formed in the inner cavity will extrude the inner cavity outward, and the main body is generally made of plastic, and its ability to withstand freezing expansion is poor, resulting in a greater risk of the main body cracking. Content of the Utility Model

[0003] Based on the above problems, the utility model provides an anti-freezing water distribution core with a simple structure, reasonable design and capable of effectively preventing the main body from cracking.

[0004] To achieve the above object, the utility model provides the following technical solution: an anti-freezing water distribution core, including a main body, a cold water inlet channel communicating with a cold water port is arranged at the rear end of the main body, a hot water inlet channel communicating with a hot water port is arranged, a thermostatic valve core cavity for installing a thermostatic valve core is arranged at one end of the main body, a water distribution valve core cavity for installing a water distribution valve core is arranged at the other end, a mixing water channel and a water outlet are arranged on the main body, both ends of the mixing water channel communicate with the thermostatic valve core cavity and the water distribution valve core cavity respectively, the water outlet is connected with the mixing water channel through the water distribution valve core, a first contraction cavity communicated with the thermostatic valve core cavity is arranged at the bottom of the thermostatic valve core cavity, and a first elastic rubber block for pressure relief is installed in the first contraction cavity.

[0005] By adopting the above technical solution, cold water enters the cold water inlet of the thermostatic valve core along the cold water inlet channel through the cold water port, hot water enters the hot water inlet of the thermostatic valve core along the hot water inlet channel through the hot water port, the cold water and hot water are mixed by the thermostatic valve core and then enter the mixing water channel, the mixed water enters the water distribution valve core through the mixing water channel, the water outlet can be provided with multiple ones, and the user operates the switch of the corresponding water outlet according to the use requirement to make the water distribution valve core communicate with the corresponding water outlet for water outlet, with strong practicability. The setting of the first elastic rubber block in the first contraction cavity, when the external temperature drops and the water remaining in the channel through which the water flows freezes into ice, the first elastic rubber block is extruded to provide a deformation space for the volume expansion caused by the freezing of the water flow channel, can effectively relieve the pressure exerted by the ice formation on the inner wall of the water flow channel, and plays the role of anti-freezing and cracking, with a simple structure. The first contraction cavity is arranged at the bottom of the thermostatic valve core cavity, which makes full use of the space, is more reasonable in design, and is convenient for installing the first elastic rubber block, improving the installation efficiency.

[0006] The present utility model is further provided that: an installation groove is formed at the bottom of the constant temperature valve core cavity, the installation groove constitutes a first contraction cavity, the first elastic rubber block is arranged in the installation groove, the notch of the installation groove faces one end of the constant temperature valve core, and the other end of the installation groove relative to the notch extends along the direction of the mixing water channel.

[0007] By adopting the above technical solution, the arrangement of the installation groove facilitates the positioning of the installation position of the first elastic rubber block, further improves the installation efficiency of the first elastic rubber block, the installation groove extends along the direction of the mixing water channel, increases the radial length of the installation groove for installing the first elastic rubber block, and at the same time promotes the expansion of the contact area between the first elastic rubber block and the outer side of the peripheral wall of the mixing water channel, enhances the use stability, and further improves the reliability of the structure.

[0008] The present utility model is further provided that: a second contraction cavity is arranged inside the water inlet end of the mixing water channel, and a second elastic rubber block for pressure relief is installed in the second contraction cavity.

[0009] By adopting the above technical solution, the arrangement of the second elastic rubber block provides a space for releasing pressure for the volume expansion caused by the freezing of the water flow channel, can effectively relieve the pressure exerted on the inner wall of the water flow channel by the freezing, and together with the first elastic rubber block, plays a role in preventing the main body from cracking, and further improves the stability and reliability of the structure.

[0010] The present utility model is further provided that: a butting surface that contracts inwards is arranged at the other end of the second contraction cavity facing away from the constant temperature valve core cavity, one end of the second elastic rubber block abuts against the butting surface, and the other end abuts against the constant temperature valve core.

[0011] By adopting the above technical solution, the arrangement of the butting surface facilitates the positioning of the installation position of the second elastic rubber block, further improves the installation efficiency of the second elastic rubber block, and the two ends of the second elastic rubber block respectively abut against the constant temperature valve core through the butting surface, clamping and fixing it between the two, avoiding the displacement of the second elastic rubber block caused by the water flow scouring, and the structure is more stable.

[0012] The present utility model is further provided that: a mixing water outlet channel is arranged in the water outlet direction of the constant temperature valve core, one end of the second elastic rubber block abuts against the water outlet end of the mixing water outlet channel, and the thickness of the second elastic rubber block is less than or equal to the wall thickness of the mixing water outlet channel.

[0013] By adopting the above technical solution, the design is more reasonable, the thickness of the second elastic rubber block is less than or equal to the wall thickness of the mixing water outlet channel, so that the installation position of the second elastic rubber block will not block the outflow of the mixed water from the mixing water outlet channel, nor will it affect the size of the water output of the mixing water channel, and improves the stability of the water output. Description of the Drawings

[0014] Figure 1 Structural section of the embodiment of the present utility model Figure 1 ;

[0015] Figure 2 Partial structure of the embodiment of the present utility model Figure 1 ;

[0016] Figure 3 Partial structure of the embodiment of the present utility model Figure 2 ;

[0017] Figure 4 is Figure 3 Schematic diagram of the structure of the first elastic rubber block of

[0018] Figure 5 Structural section of the embodiment of the present utility model Figure 2 ;

[0019] Figure 6 Partial structure of the embodiment of the present utility model Figure 3 ;

[0020] Figure 7 is Figure 6 Schematic diagram of the structure of the first elastic rubber block of

[0021] Figure 8 Schematic diagram of the structure of the embodiment of the present utility model;

[0022] Meanings of the reference numerals in the figure: 1 - main body, 2 - cold water inlet, 201 - cold water inlet channel, 3 - hot water inlet, 301 - hot water inlet channel, 4 - thermostatic valve core, 401 - thermostatic valve core cavity, 5 - water distribution valve core, 501 - water distribution valve core cavity, 6 - mixing water channel, 7 - water outlet, 8 - first contraction cavity, 9 - first elastic rubber block, 10 - installation groove, 11 - second contraction cavity, 12 - second elastic rubber block, 13 - abutting surface, 14 - mixing water outlet channel. Specific embodiments

[0023] This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the Patent Law.

[0024] See the appendix Figures 1-8, an anti-freezing water distribution core disclosed by the utility model comprises a main body 1. A cold water inlet passage 201 communicating with a cold water port 2 and a hot water inlet passage communicating with a hot water port 3 are arranged at the rear end of the main body 1. A thermostatic valve core cavity 401 for installing a thermostatic valve core 4 is arranged at one end of the main body 1, and a water distribution valve core cavity 501 for installing a water distribution valve core 5 is arranged at the other end. A mixing water passage 6 and a water outlet 7 are arranged on the main body 1. The two ends of the mixing water passage 6 communicate with the thermostatic valve core cavity 401 and the water distribution valve core cavity 501 respectively. The water outlet 7 is connected with the mixing water passage 6 through the water distribution valve core 5. A first contraction cavity 8 communicated with the bottom of the thermostatic valve core cavity 401 is opened at the bottom of the thermostatic valve core cavity 401. A first elastic rubber block 9 for pressure relief is installed in the first contraction cavity 8. Cold water enters the cold water inlet of the thermostatic valve core 4 along the cold water inlet passage 201 through the cold water port 2, and hot water enters the hot water inlet of the thermostatic valve core 4 along the hot water inlet passage through the hot water port 3. The cold water and hot water are mixed by the thermostatic valve core 4 and then enter the mixing water passage 6. The mixed water enters the water distribution valve core 5 through the mixing water passage 6. Multiple water outlets 7 can be arranged. Users can operate the switches of the corresponding water outlets 7 according to the usage requirements to make the water distribution valve core 5 communicate with the corresponding water outlets 7 to discharge water, which has strong practicability. The setting of the first elastic rubber block 9 in the first contraction cavity 8 can provide a deformation space for the volume expansion caused by ice formation in the water flow passage when the external temperature drops and the water remaining in the water flow passage freezes into ice. It can effectively relieve the pressure exerted on the inner wall of the water flow passage by ice formation and play an anti-freezing and cracking effect. The structure is simple. The first contraction cavity 8 is arranged at the bottom of the thermostatic valve core cavity 401, which makes full use of the space, has a more reasonable design, and is convenient for installing the first elastic rubber block 9, improving the installation efficiency. Preferably, the cross-section of the first elastic rubber block in the width direction is annularly arranged with one side open, and the opening size can be adjusted according to actual usage requirements (see attached Figure 4 , 7 as an example).

[0025] This embodiment is further provided that an installation groove 10 is opened at the bottom of the thermostatic valve core cavity 401. The installation groove 10 forms the first contraction cavity 8. The first elastic rubber block 9 is arranged in the installation groove 10. The notch of the installation groove 10 faces one end of the thermostatic valve core 4, and the other end of the installation groove 10 relative to the notch extends along the direction of the mixing water passage 6. The setting of the installation groove 10 is convenient for positioning the installation position of the first elastic rubber block 9 and further improves the installation efficiency of the first elastic rubber block 9. The installation groove 10 extends along the direction of the mixing water passage 6, increasing the radial length of the installation groove 10 for installing the first elastic rubber block 9, and at the same time promoting the contact area between the first elastic rubber block 9 and the outer side of the peripheral wall of the mixing water passage 6 to expand, enhancing the use stability and further improving the reliability of the structure.

[0026] In this embodiment, it is further provided that: a second contraction cavity 11 is arranged inside the water inlet end of the mixing water channel 6, and a second elastic rubber block 12 for pressure relief is installed inside the second contraction cavity 11. The arrangement of the second elastic rubber block 12 provides a space for releasing pressure for the volume expansion of the water flow channel caused by icing, can effectively relieve the pressure exerted on the inner wall of the water flow channel by icing, and together with the first elastic rubber block 9, plays a role in preventing the main body 1 from cracking, further improving the stability and reliability of the structure. Preferably, the cross-section of the second elastic rubber block in the width direction is arranged in a circular ring shape or a semi-circular ring shape, and can also be adjusted according to actual use requirements (see the appendix Figure 2 、 3 for example).

[0027] In this embodiment, it is further provided that: the other end of the second contraction cavity 11 facing away from the constant temperature valve core cavity 401 is provided with an inwardly contracting abutting surface 13, one end of the second elastic rubber block 12 abuts against the abutting surface 13, and the other end abuts against the constant temperature valve core 4. The arrangement of the abutting surface 13 facilitates the positioning of the installation position of the second elastic rubber block 12, further improving the installation efficiency of the second elastic rubber block 12. The two ends of the second elastic rubber block 12 respectively abut against the abutting surface 13 and the constant temperature valve core 4, clamping and fixing it between the two, avoiding the displacement of the second elastic rubber block 12 caused by water flow scouring, and the structure is more stable.

[0028] In this embodiment, it is further provided that: a mixing water outlet channel 14 is arranged in the water outlet direction of the constant temperature valve core 4, one end of the second elastic rubber block 12 abuts against the water outlet end of the mixing water outlet channel 14, and the thickness of the second elastic rubber block 12 is less than or equal to the wall thickness of the mixing water outlet channel 14. The design is more reasonable. The thickness of the second elastic rubber block 12 is less than or equal to the wall thickness of the mixing water outlet channel 14, so that the installation position of the second elastic rubber block 12 will not block the outflow of the mixed water from the mixing water outlet channel 14, nor will it affect the size of the water output of the mixing water channel 6, improving the stability of the water output.

[0029] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made. These improvements and modifications made under the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. An antifreeze water distribution core, comprising a main body, wherein the rear end of the main body is provided with a cold water inlet channel connected to the cold water port and a hot water inlet channel connected to the hot water port, one end of the main body is provided with a thermostatic valve core cavity for installing a thermostatic valve core, and the other end is provided with a water diversion valve core cavity for installing a water diversion valve core, the main body is provided with a mixing water channel and a water outlet, the two ends of the mixing water channel are respectively connected to the thermostatic valve core cavity and the water diversion valve core cavity, and the water outlet is connected to the mixing water channel through the water diversion valve core, characterized in that: A first contraction cavity communicated with the thermostatic valve core cavity is provided at the bottom thereof, and a first elastic rubber block for pressure relief is installed in the first contraction cavity.

2. The antifreeze water distribution core according to claim 1, characterized in that: An installation groove is provided at the bottom of the thermostatic valve core cavity, and the installation groove constitutes a first contraction cavity. The first elastic rubber block is arranged in the installation groove. The notch of the installation groove faces one end of the thermostatic valve core, and the installation groove extends along the direction of the mixing water channel relative to the other end of the notch.

3. The antifreeze water distribution core according to claim 1, characterized in that: A second contraction cavity is arranged in the water inlet end of the water mixing channel, and a second elastic rubber block for pressure relief is installed in the second contraction cavity.

4. The antifreeze water distribution core according to claim 3, characterized in that: The other end of the second shrinkage cavity facing away from the thermostatic valve core cavity is provided with an inwardly shrinking abutment surface, one end of the second elastic rubber block abuts against the abutment surface, and the other end abuts against the thermostatic valve core.

5. The antifreeze water distribution core according to claim 3, characterized in that: A mixed water outlet channel is provided in the water outlet direction of the thermostatic valve core, one end of the second elastic rubber block abuts against the water outlet end of the mixed water outlet channel, and the thickness of the second elastic rubber block is less than or equal to the wall thickness of the mixed water outlet channel.

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