CN217207894U

CN217207894U - Zinc alloy prevents scalding shower constant temperature tap

Info

Publication number: CN217207894U
Application number: CN202122462208.3U
Authority: CN
Inventors: 刘清昌; 刘炎新
Original assignee: Zhejiang Gaoao Sanitary Ware Co ltd
Current assignee: Zhejiang Gaoao Sanitary Ware Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-08-16
Anticipated expiration: 2031-10-11

Abstract

The utility model discloses a zinc alloy anti-scald shower constant temperature faucet, which belongs to the technical field of faucets and comprises a valve body, a water mixing valve core, a flow valve core and a central tube, wherein a valve cold water inlet is arranged on the valve body, valve hot water import and valve mix the water outlet, be equipped with installation cavity and cold water cavity in the valve body, the center tube is installed in the installation cavity, the play water end of mixing water valve core and the inlet end of flow valve core set up the both ends at the center tube respectively, cold water cavity one end and valve cold water access connection, one end is connected with the inlet end of mixing water valve core, valve hot water import is connected with the inlet end of mixing water valve core, form the mixed water cavity between the outer wall of center tube and the inner wall of installation cavity, the one end of mixed water cavity is connected with the play water end of flow valve core, one end and valve mix water exit linkage, the valve body comprises first valve casing and second valve casing, reached convenient maintenance, prevent scalding effectual effect.

Description

Zinc alloy prevents scalding shower constant temperature tap

Technical Field

The utility model relates to a tap field especially relates to a shower constant temperature faucet is prevented scalding by zinc alloy.

Background

In daily life, tap water supplies cold water, and a water heater can heat the cold water into hot water, but most of people generally do not directly use the hot water, the hot water and the cold water are mixed into warm water with a certain temperature for people to use, and a water mixing faucet is needed to mix the hot water and the cold water.

A mixer tap is a tap that produces a common outlet flow by varying the position of a shutter to affect the ratio of two or more inlet flows. Generally, a mixing faucet is a three-way valve, and includes two water inlets, a mixing chamber and a water outlet, wherein the mixing chamber is provided with a mixing valve core, cold water and hot water respectively flow into the mixing chamber from the two water inlets and are mixed in the mixing valve core, and the mixed warm water flows out from the water outlet for direct use.

Because foretell mix tap, the simple setting of hot water passageway with the water inlet intercommunication is in the valve body for when hot water flowed into mixing water valve core through the hot water passageway from the water inlet, hot water can make mix tap scald, scald easily when people touch mix tap's the outside face carelessly.

So more and more families begin to use at present and prevent scalding constant temperature faucet, but the current prevent scalding constant temperature faucet internal valve body all adopts integrative casting shaping in it, and the inside water course of casting main part is complicated in addition, causes the casting defect more, and the inner wall is coarse, easily causes the water course to block up, and then leads to the later stage to overhaul very trouble. Meanwhile, the existing scald-proof constant-temperature faucet is unreasonable in arrangement of the hot water channel and the cold water channel, so that the surface temperature of the scald-proof constant-temperature faucet is still too high, and the scald phenomenon is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, solve the technical problem in the correlation technique at least to a certain extent, provide a shower constant temperature tap is prevented scalding by zinc alloy to reach convenient the maintenance, prevent scalding effectual purpose.

In order to solve the technical problem, the technical scheme of the utility model is that: a zinc alloy scald-proof shower constant-temperature faucet, which comprises a valve body, a water mixing valve core, a temperature control hand wheel, a flow valve core, a flow hand wheel, a central pipe, a cold water inlet pipe, a hot water inlet pipe and a mixed water outlet pipe,

the temperature control hand wheel is connected to the water mixing valve core, the flow hand wheel is connected to the flow valve core, the valve body is provided with a valve cold water inlet, a valve hot water inlet and a valve mixed water outlet, the cold water inlet pipe is connected to the valve cold water inlet, the hot water inlet pipe is connected to the valve hot water inlet, the mixed water outlet pipe is connected to the valve mixed water outlet,

the improved water mixing valve is characterized in that an installation cavity and a cold water cavity are arranged in the valve body, the central tube is installed in the installation cavity, the water outlet end of the water mixing valve core and the water inlet end of the flow valve core are respectively arranged at two ends of the central tube, one end of the cold water cavity is connected with a valve cold water inlet, one end of the cold water cavity is connected with the water inlet end of the water mixing valve core, the valve hot water inlet is connected with the water inlet end of the water mixing valve core, a mixed water cavity is formed between the outer wall of the central tube and the inner wall of the installation cavity, one end of the mixed water cavity is connected with the water outlet end of the flow valve core, one end of the mixed water cavity is connected with a valve mixed water outlet, the valve body is composed of a first valve shell and a second valve shell, the valve cold water inlet and the valve mixed water outlet are arranged on the first valve shell, the flow valve core is arranged in the first valve shell, the valve hot water inlet is arranged on the second valve shell, and the water mixing valve core is arranged in the second valve shell.

Through the setting, cold water flows into through cold water inlet tube, valve cold water import and cold water chamber and mixes water valve core, and hot water then flows into through the hot water inlet tube promptly and mixes water valve core, and the cold water chamber runs through the valve body almost for the whole function that prevents scalding in surface that has of valve body, hot water inlet tube ten minutes are short, make hot water stay the time extremely short in the valve body, and then have reduced the influence that hot water caused the rising to the temperature of valve body. In addition, the valve body comprises first valve casing and second valve casing, replaces the integrated casting fashioned valve body among the prior art, and then makes the valve body can unpack apart, in case take place to block up, it is also more convenient that later stage overhauls.

As a specific aspect of the present invention, it may be preferable that: the installation cavity comprises first cavity and second cavity, first cavity is located in the first valve casing, the second cavity is located in the second valve casing, the center tube includes main section, vice section and is located the outer annular protruding section between main section and the vice section, the internal diameter of first cavity is greater than the external diameter of main section and is equipped with in the first cavity with the outer annular protruding section conflict in annular protruding, be equipped with external screw thread and annular seal recess on the vice section, the internal diameter of second cavity is the same with vice section and is equipped with the internal thread with the external screw thread adaptation, be equipped with ring packing in the annular seal recess, be equipped with a plurality of chucking oblique thorns in the main section, the chucking is unloaded the thorn and is towards the vice section direction diminishing form gradually.

Through the aforesaid setting, the back in the vice section of center tube stretches into the second cavity, external screw thread on the vice section and the interior screw-thread fit of second cavity, realize threaded connection, because annular protrusion in being equipped with in the first cavity, along with the external screw-thread fit in-process on the vice section, the outer annular protrusion section of center tube is contradicted with interior annular protrusion in the first cavity, the effect of connecting first valve casing and second valve casing has been reached, be equipped with ring seal in the annular seal recess on the vice section, the leakproofness has been increased, chucking spur on the main section, along with the external screw-thread fit in-process on the vice section, chucking spur and the inner wall of first cavity more and more press close to gradually, until forming interference fit, make the center tube installation more firm stable.

As a specific aspect of the present invention, it may be preferable that: be equipped with a plurality of joint pieces that extend towards the second valve casing on the butt joint face of first valve casing, be equipped with a plurality of joint grooves with joint piece adaptation on the butt joint face of second valve casing.

Through the setting, the joint piece cooperation joint groove not only can make things convenient for people to carry out blind operation when docking first valve casing and second valve casing, can also make first valve casing and second valve casing dock more firmly.

As a specific aspect of the present invention, it may be preferable that: the outside of first valve casing and second valve casing is equipped with the shell, all be equipped with the vertical strengthening rib that wraps up first valve casing and second valve casing respectively on first valve casing and the second valve casing, all be equipped with the horizontal strengthening rib with vertical strengthening rib cluster on first valve casing and the second valve casing.

Through the setting, the shell can play the protection to first valve casing and second valve casing, and vertical strengthening rib and horizontal strengthening rib cooperation for the intensity of first valve casing and second valve casing obtains great promotion.

As a specific aspect of the present invention, it may be preferable that: all be equipped with heterotypic sealed recess on the butt joint face of first valve casing and second valve casing, be equipped with heterotypic sealing washer in the sealed recess of heterotypic.

Through the arrangement, the sealing performance between the first valve shell and the second valve shell is improved.

As a specific aspect of the present invention, it may be preferable that: the water inlet of the cold water inlet pipe and the water inlet of the hot water inlet pipe are both provided with filter screens, and the cold water inlet pipe and the hot water inlet pipe are both provided with check valves.

Through the arrangement, most impurities can be filtered by the filter screen, so that the impurities are prevented from entering the valve body to cause blockage; the design of check valve can make the water in the valve body can not take place the refluence, and then has stopped in the valve body because of the refluence entering air, has influenced the mixing of hot and cold water and forms the splash when going out water, guarantees the invariable water that goes out of warm water, and is more humanized.

As a specific aspect of the present invention, it may be preferable that: still be equipped with a plurality of orientations and the valve on the first valve casing and mix the spare valve mixing water export that the water export orientation is different, be equipped with the jam head on the spare valve mixing water export.

Through the arrangement, when people need to install the mixed water outlet pipe in different directions, the mixed water outlet of the standby valve can provide an installation position, and the device is more humanized.

As a specific aspect of the present invention, it may be preferable that: first valve casing and second valve casing all adopt the zinc alloy to make.

Through the setting, the casting performance of the zinc alloy is good, the precision part with complex and thin wall shape can be die-cast, and the surface of the casting is smooth, so when the valve body is composed of the first valve shell and the second valve shell which are made of the zinc alloy, the phenomenon of water channel blockage is not easy to occur, and the service life is longer.

The utility model discloses technical effect mainly embodies in following aspect: 1. cold water flows into the water mixing valve core through cold water inlet pipe, valve cold water inlet and cold water chamber, and hot water then flows into the water mixing valve core through the hot water inlet pipe promptly, and the cold water chamber runs through the valve body almost for the whole function that prevents scalding in surface that has of valve body, and the hot water inlet pipe ten minutes is short, makes hot water stay the time extremely short in the valve body, and then has reduced the influence that hot water caused the rising to the temperature of valve body. 2. The valve body comprises first valve casing and second valve casing, replaces integrated casting fashioned valve body among the prior art, and then makes the valve body can unpack apart, in case take place to block up, the later stage is overhauld also more conveniently.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of the internal structure of the present invention;

FIG. 3 is a schematic sectional view taken along line A-A' of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line B-B' of FIG. 2;

fig. 5 is a schematic cross-sectional structural view of the first and second valve casings of the present invention;

fig. 6 is a schematic perspective view of the central tube of the present invention;

fig. 7 is a schematic sectional view of the cold water inlet pipe of the present invention.

Reference numerals: 1. a valve body; 2. a first valve housing; 3. a second valve housing; 4. a water mixing valve core; 5. a temperature control hand wheel; 6. a flow valve core; 7. a flow rate hand wheel; 8. a central tube; 81. a main section; 82. an outer annular convex section; 83. a secondary section; 9. a cold water inlet pipe; 10. a hot water inlet pipe; 11. a mixed water outlet pipe; 12. a valve cold water inlet; 13. a valve hot water inlet; 14. a valve mixed water outlet; 15. a mounting cavity; 151. a first cavity; 152. a second cavity; 16. a cold water chamber; 17. a mixed water chamber; 18. an inner annular protrusion; 19. an annular seal groove; 20. an annular seal ring; 21. clamping the oblique stabs; 22. longitudinal reinforcing ribs; 23. transverse reinforcing ribs; 24. a special-shaped sealing groove; 25. a special-shaped sealing ring; 26. a filter screen; 27. a one-way valve; 28. a standby valve mixed water outlet; 29. plugging the head; 30. a housing; 31. a clamping block; 32. a clamping groove.

Detailed Description

The embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, and the embodiments described below by referring to the drawings are exemplary and intended to explain the present invention so that the technical solutions of the present invention can be more easily understood and grasped, and cannot be construed as limiting the present invention.

Examples

A zinc alloy scald-proof shower constant temperature faucet, which is shown in reference to figures 1, 2, 3 and 4, and comprises a valve body 1, a water mixing valve core 4, a temperature control hand wheel 5, a flow valve core 6, a flow hand wheel 7, a central pipe 8, a cold water inlet pipe 9, a hot water inlet pipe 10 and a mixed water outlet pipe 11,

the temperature control hand wheel 5 is connected on the water mixing valve core 4, the flow hand wheel 7 is connected on the flow valve core 6, the valve body 1 is provided with a valve cold water inlet 12, a valve hot water inlet 13 and a valve mixed water outlet 14, the cold water inlet pipe 9 is connected on the valve cold water inlet 12, the hot water inlet pipe 10 is connected on the valve hot water inlet 13, the mixed water outlet pipe 11 is connected on the valve mixed water outlet 14,

be equipped with installation cavity 15 and cold water chamber 16 in the valve body 1, center tube 8 is installed in installation cavity 15, the play water end of muddy water valve core 4 and the inlet end of flow valve core 6 set up respectively at the both ends of center tube 8, cold water chamber 16 one end is connected with valve cold water inlet 12, one end is connected with the inlet end of muddy water valve core 4, valve hot water inlet 13 is connected with the inlet end of muddy water valve core 4, form mixed water chamber 17 between the outer wall of center tube 8 and the inner wall of installation cavity 15, the one end of mixed water chamber 17 is connected with the play water end of flow valve core 6, one end is connected with valve mixed water outlet 14, valve body 1 comprises first valve casing 2 and second valve casing 3, valve cold water inlet 12 and valve mixed water outlet 14 are located on first valve casing 2, flow valve core 6 is located in first valve casing 2, valve hot water inlet 13 is located on the second valve casing 3, muddy water valve core 4 is located in the second valve casing 3.

The utility model discloses when using, cold water flows into muddy water valve core 4 through cold water inlet tube 9, valve cold water import 12 and cold water chamber 16, and hot water then flows into muddy water valve core 4 promptly through hot water inlet tube 10, and cold water chamber 16 runs through valve body 1 almost for valve body 1 is whole to have the function that the surface is prevented scalding, and hot water inlet tube 10 is very short, makes hot water stay time extremely short in valve body 1, and then has reduced the influence that hot water caused the rising to the temperature of valve body 1. In addition, valve body 1 comprises first valve casing 2 and second valve casing 3, replaces the valve body of integrative casting shaping among the prior art, and then makes valve body 1 can unpack apart, in case take place to block up, later stage maintenance is also more convenient.

Referring to fig. 3, fig. 4, fig. 5 and fig. 6, installation cavity 15 is composed of first cavity 151 and second cavity 152, first cavity 151 is located in first valve casing 2, second cavity 152 is located in second valve casing 3, center tube 8 includes main section 81, sub-section 83 and outer annular protruding section 82 that is located between main section 81 and sub-section 83, the internal diameter of first cavity 151 is greater than the external diameter of main section 81 and is equipped with the interior annular arch 18 of contradicting with outer annular protruding section 82 in first cavity 151, be equipped with external screw thread and annular seal groove 19 on the sub-section 83, the internal diameter of second cavity 152 is the same with sub-section 83 and is equipped with the internal thread with the external screw thread adaptation, be equipped with annular seal ring 20 in the annular seal groove 19, be equipped with a plurality of chucking oblique thorn 21 on the main section 81, the chucking is the form that diminishes towards sub-section 83 direction gradually. The back in the minor segment 83 of center tube 8 stretches into second cavity 152, external screw thread on the minor segment 83 and the interior screw-thread fit of second cavity 152, realize threaded connection, because be equipped with interior annular arch 18 in first cavity 151, along with the external screw-thread fit in-process on the minor segment 83, the outer annular arch section 82 of center tube 8 contradicts with interior annular arch 18 in first cavity 151, the effect of connecting first valve casing 2 and second valve casing 3 has been reached, be equipped with ring packing 20 in the annular seal recess 19 on the minor segment 83, the leakproofness has been increased, chucking spur 21 on the main section 81, along with the external screw-thread fit in-process on the minor segment 83, chucking spur 21 is more and more pressed close to with the inner wall of first cavity 151 gradually, until forming interference fit, make the installation of center tube 8 firm more stable.

Referring to fig. 2, a plurality of clamping blocks 31 extending toward the second valve housing 3 are disposed on the abutting surface of the first valve housing 2, and a plurality of clamping grooves 32 adapted to the clamping blocks 31 are disposed on the abutting surface of the second valve housing 3. Joint piece 31 cooperation joint groove 32 not only can make things convenient for people to carry out blind operation when docking first valve casing 2 with second valve casing 3, can also make first valve casing 2 and second valve casing 3 dock more firmly.

Referring to fig. 1 and 2, an outer casing 30 is provided on the outer side of the first valve casing 2 and the second valve casing 3, longitudinal reinforcing ribs 22 respectively surrounding the first valve casing 2 and the second valve casing 3 are provided on the first valve casing 2 and the second valve casing 3, and transverse reinforcing ribs 23 connecting the longitudinal reinforcing ribs 22 in series are provided on the first valve casing 2 and the second valve casing 3. The outer casing 30 can protect the first valve casing 2 and the second valve casing 3, and the longitudinal reinforcing ribs 22 and the transverse reinforcing ribs 23 are matched, so that the strength of the first valve casing 2 and the second valve casing 3 is greatly improved.

Referring to fig. 5, the abutting surfaces of the first valve housing 2 and the second valve housing 3 are provided with special-shaped sealing grooves 24, and special-shaped sealing rings 25 are arranged in the special-shaped sealing grooves 24. The sealing between the first valve housing 2 and the second valve housing 3 is increased.

Referring to fig. 7, a filter screen 26 is disposed at the water inlet of each of the cold water inlet pipe 9 and the hot water inlet pipe 10, and a check valve 27 is disposed in each of the cold water inlet pipe 9 and the hot water inlet pipe 10. The filter screen 26 can filter most impurities, so that the impurities are prevented from entering the valve body 1 to cause blockage; the design of check valve 27 can make the water in the valve body 1 can not take place the refluence, and then has stopped in the valve body 1 because of the refluence entering air, has influenced the mixture of hot and cold water and has formed the splash when going out water, guarantees the invariable water that goes out of warm water, and is more humanized.

Referring to fig. 2, the first valve housing 2 is further provided with a plurality of back-up valve mixed water outlets 28 having different orientations from the valve mixed water outlet 14, and the back-up valve mixed water outlets 28 are provided with plugging heads 29 on the mixed water outlets 14. When people need to install the mixed water outlet pipe 11 at different directions, the standby valve mixed water outlet 28 and the mixed water outlet 14 can provide installation positions, and are more humanized.

The first valve shell 2 and the second valve shell 3 are made of zinc alloy. The zinc alloy has good casting performance, can be used for die-casting a precision part with a complex shape and a thin wall, and has a smooth casting surface, so that when the valve body 1 is formed by the first valve shell 2 and the second valve shell 3 which are made of the zinc alloy, the phenomenon of water channel blockage is not easy to occur, and the service life is longer.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A zinc alloy scald-proof shower constant-temperature faucet is characterized by comprising a valve body, a water mixing valve core, a temperature control hand wheel, a flow valve core, a flow hand wheel, a central pipe, a cold water inlet pipe, a hot water inlet pipe and a mixed water outlet pipe,

the water mixing valve is characterized in that an installation cavity and a cold water cavity are arranged in the valve body, the central tube is installed in the installation cavity, the water outlet end of the water mixing valve element and the water inlet end of the flow valve element are respectively arranged at two ends of the central tube, one end of the cold water cavity is connected with a valve cold water inlet, one end of the cold water cavity is connected with the water inlet end of the water mixing valve element, the valve hot water inlet is connected with the water inlet end of the water mixing valve element, a mixed water cavity is formed between the outer wall of the central tube and the inner wall of the installation cavity, one end of the mixed water cavity is connected with the water outlet end of the flow valve element, one end of the mixed water cavity is connected with a valve mixed water outlet, the valve body is composed of a first valve shell and a second valve shell, the valve cold water inlet and the valve mixed water outlet are arranged on the first valve shell, the flow valve hot water inlet is arranged on the second valve shell, and the water mixing valve element is arranged in the second valve shell.

2. The zinc alloy scald-proof shower constant temperature faucet of claim 1, which is characterized in that: the installation cavity comprises first cavity and second cavity, first cavity is located in the first valve casing, the second cavity is located in the second valve casing, the center tube includes main section, vice section and is located the outer annular protruding section between main section and the vice section, the internal diameter of first cavity is greater than and is equipped with the interior annular arch of contradicting with outer annular protruding section in the external diameter of main section and the first cavity, be equipped with external screw thread and annular seal recess on the vice section, the internal diameter of second cavity is the same with vice section and is equipped with the internal thread with the external screw thread adaptation, be equipped with ring packing in the annular seal recess, be equipped with a plurality of chucking inclined spine in the main section, the chucking is unloaded the thorn and is towards vice section direction diminishing form gradually.

3. The zinc alloy scald-proof shower constant temperature faucet of claim 1, which is characterized in that: be equipped with a plurality of joint pieces that extend towards the second valve casing on the butt joint face of first valve casing, be equipped with a plurality of joint grooves with joint piece adaptation on the butt joint face of second valve casing.

4. The zinc alloy scald-proof shower constant temperature faucet of claim 1, which is characterized in that: the outside of first valve casing and second valve casing is equipped with the shell, all be equipped with the vertical strengthening rib that wraps up first valve casing and second valve casing respectively on first valve casing and the second valve casing, all be equipped with the horizontal strengthening rib with vertical strengthening rib cluster on first valve casing and the second valve casing.

5. The zinc alloy scald-proof shower constant temperature faucet of claim 1, which is characterized in that: all be equipped with heterotypic sealed recess on the butt joint face of first valve casing and second valve casing, be equipped with heterotypic sealing washer in the sealed recess of heterotypic.

6. The zinc alloy scald-proof shower constant temperature faucet of claim 1, which is characterized in that: the water inlet of the cold water inlet pipe and the water inlet of the hot water inlet pipe are both provided with filter screens, and the cold water inlet pipe and the hot water inlet pipe are both provided with check valves.

7. The zinc alloy anti-scalding shower constant temperature faucet as claimed in claim 1, characterized in that: still be equipped with a plurality of orientations and the valve on the first valve casing and mix the spare valve mixing water export that the water export orientation is different, be equipped with the jam head on the spare valve mixing water export.

8. The zinc alloy scald-proof shower constant temperature faucet of claim 1, which is characterized in that: first valve casing and second valve casing all adopt the zinc alloy to make.