CN107420581A - A kind of anti-scald water tap - Google Patents

Abstract

The invention provides an anti-scalding faucet, which includes a housing and a core tube inserted into the housing; two ends of the core tube are respectively provided with a cold water inlet and a hot water inlet; The upper water outlet for shower water supply and the lower water outlet for water supply to the bathtub faucet, correspondingly, there are cold water connection ports and hot water connection ports at both ends of the housing, and an upper connection port and a lower connection port in the middle of the housing ; One end of the core tube close to the cold water inlet is provided with a flow valve core, the flow valve core is connected with a flow handwheel, and the other end of the core tube is provided with a gear valve core, and the gear valve core is connected with a gear handwheel; The pipe is respectively connected to the external cold water pipe and the hot water pipe through two connecting pipes; there is a gap between the inner surface of the shell and the outer surface of the core pipe. The faucet prevents the surface from being heated by the hot water flowing through it, thereby preventing the user from being scalded.

Description

An anti-scald faucet

technical field

The invention relates to a bathroom product, in particular to an anti-scald faucet.

Background technique

The bathroom faucet needs to supply water to the shower head and bathtub faucet, and the water temperature is required to be adjustable. The general bathroom faucet has two water inlets, which are respectively connected to the cold water pipe and the hot water pipe, and are adjusted by adjusting the flow ratio of cold water and hot water. However, the introduction of hot water will heat the bathroom faucet, making its surface temperature high, and users (especially children) are likely to be scalded when using it.

It can be seen that the prior art needs to be improved and enhanced.

Contents of the invention

In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide an anti-scald faucet, which can prevent the surface from being heated by the hot water flowing inside, thereby preventing the user from being scalded.

In order to achieve the above object, the present invention has taken the following technical solutions:

An anti-scald water faucet, comprising a shell, and a core tube plugged into the shell; two ends of the core tube are respectively provided with a cold water inlet and a hot water inlet, and the middle part of the core tube is provided with a water supply hole for the shower. The upper water outlet and the lower water outlet for supplying water to the bathtub faucet, correspondingly, the two ends of the housing are provided with a cold water connection port and a hot water connection port, and the middle part of the housing is provided with an upper connection port and a lower connection port; the core tube is close to One end of the cold water inlet is provided with a flow spool, which is connected to a flow handwheel, and the other end of the core tube is provided with a gear spool, which is connected to a gear handwheel; the core tube passes through two The connecting pipes communicate with the external cold water pipe and the hot water pipe respectively; there is a gap between the inner surface of the shell and the outer surface of the core pipe.

In the anti-scald faucet, the outer diameter of the core tube is smaller than the inner diameter of the housing, and the outer wall of the core tube is provided with a plurality of annular protrusions along the length direction, and the outer diameter of the annular protrusions is equal to the inner diameter of the housing. adapt.

In the anti-scald water faucet, the pipe diameter of a section of the core pipe located between the hot water inlet and the upper water outlet/lower water outlet is smaller than that of other parts.

In the anti-scald faucet, the inner wall of the casing is provided with a positioning protrusion extending along the length direction, and the ring-shaped protrusion of the core tube is provided with a corresponding positioning slot.

In the anti-scald faucet, the core tube is made of high temperature resistant nylon; the shell is made of copper alloy.

In the anti-scald faucet, the connecting pipe is a curved foot.

In the anti-scald water faucet, a filter is arranged between the connecting pipe and the core pipe.

In the anti-scalding faucet, a check valve is arranged between the filter screen and the core pipe.

In the anti-scalding water faucet, the upper connection port and the lower connection port are respectively threadedly connected with connectors; The first threaded part connected to the connection port, and the second threaded part used to connect with the shower or bathtub faucet; the diameter of the insertion part is smaller than the diameter of the first threaded part, and the diameter of the first threaded part is smaller than the diameter of the second threaded part. A first sealing ring is sleeved on the connection portion, and a second sealing ring is sleeved on the first threaded portion.

In the anti-scald water faucet, wear rings are provided between the flow valve core and the flow handwheel, and between the gear valve core and the gear handwheel.

Beneficial effect:

The invention provides an anti-scald faucet. The faucet not only has the function of a general bathroom faucet, but also has a gap between the shell and the core tube. When hot water flows through the core tube, heat is difficult to transfer to the shell. Therefore, it is possible to prevent the housing from being heated by hot water, thereby preventing the user from being scalded by the housing.

Description of drawings

Fig. 1 is a schematic structural view of the anti-scald faucet provided by the present invention.

Fig. 2 is a schematic structural view of the core tube in the anti-scald faucet provided by the present invention.

Fig. 3 is a schematic diagram of the connecting structure of the connecting pipe in the anti-scald faucet provided by the present invention.

Fig. 4 is a schematic structural view of the housing in the anti-scald faucet provided by the present invention.

detailed description

The present invention provides an anti-scalding faucet. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Herein, front refers to a direction away from the wall, and rear refers to a direction close to the wall.

Please refer to Fig. 1-4, an anti-scald faucet, including a housing 1, and a core tube 2 plugged into the housing; two ends of the core tube are respectively provided with a cold water inlet 21 and a hot water inlet (in the figure Not shown, here, the cold water inlet and the hot water inlet are arranged symmetrically), the middle part of the core tube 2 is provided with an upper water outlet 22 for supplying water to the shower head, and a lower water outlet for supplying water to the bathtub faucet (in the figure Not shown, here, the upper water outlet and the lower water outlet are on the same vertical line), correspondingly, the two ends of the housing are provided with a cold water connection port 11 and a hot water connection port 12, and the middle part of the housing is provided with an upper connection port 13 and the lower connection port 14; the end of the core pipe 2 near the cold water inlet 21 is provided with a flow valve core 3, the flow valve core is connected with a flow handwheel 31, and the other end of the core tube is provided with a gear valve core 4, the gear position The valve core is connected with a gear hand wheel 41; the core pipe is respectively connected to the external cold water pipe and the hot water pipe through two connecting pipes 5; there is a gap between the inner surface of the housing 1 and the outer surface of the core pipe 2.

Since there is a gap between the housing 1 and the core tube 2, when hot water flows through the core tube 2, heat is difficult to transfer to the housing, so that the housing can be prevented from being heated by hot water, thereby preventing the user from being scalded by the housing.

Specifically, as shown in Figures 1 and 2, the outer diameter of the core tube 2 is smaller than the inner diameter of the housing 1, and the outer wall of the core tube is provided with a plurality of annular protrusions 23 along the length direction, and the outer diameter of the annular protrusions is the same as Compatible with the inner diameter of the housing. The core tube is supported in the casing by the ring-shaped protrusion, forming a heat-insulating gap.

Further, the pipe diameter of a section of pipe body 24 located between the hot water inlet and the upper water outlet/lower water outlet on the core pipe is smaller than that of other parts. Since the hot water mainly flows through the pipe body 24 in this section, reducing the pipe diameter of this section can increase the gap between it and the shell and improve the heat insulation effect.

In order to quickly and accurately align the inlet and outlet of the core tube with the corresponding connection port on the shell, the inner wall of the shell 1 is provided with a positioning protrusion extending along the length direction (not shown in the figure), and the ring-shaped protrusion of the core tube 2 A corresponding positioning slot 231 is opened on the handle 23 . After aligning the positioning card groove with the positioning protrusion during assembly, the core tube is inserted into the housing, and the core tube cannot be rotated in the housing, thereby realizing fast and accurate alignment.

In this embodiment, the core tube 2 is made of high temperature resistant nylon (commonly known as PPA plastic); the shell 1 is made of copper alloy. High temperature resistant nylon has high temperature resistance and will not be easily deformed by the high temperature of hot water, and its low thermal conductivity can reduce the heat transferred, while copper alloy has a large density and specific heat capacity, and the heat required for heating is large, so It is not easy to heat up, and the pairing of the two materials greatly improves the anti-scald effect.

Specifically, see Figures 1 and 3, the connecting pipe 5 is a curved foot. When the hole spacing of the water outlet position reserved on the wall is deviated and affects the installation, this effect can be offset by adjusting the angle of the curved foot.

Further, a filter screen 51 is provided between the connecting pipe 5 and the core pipe 2 to prevent impurities in the water from flowing into the faucet.

Further, a check valve 52 is provided between the filter screen 51 and the core pipe 2 to prevent the water in the faucet from flowing back.

In this embodiment, see Fig. 3, the cold water inlet and the hot water inlet of the core pipe 2 are plugged with a connecting head 53, and the rear end of the connecting head 53 (the rear refers to the direction away from the core pipe) connects from the cold water connection port 11 Or the hot water connection port 12 passes through and is connected with a connecting nut 54, and the rear end of the connecting nut 54 is connected with the connecting pipe 5; in the connecting head 53, a snap ring 55, a check valve 52 and a filter screen 51 are sequentially arranged from front to back, and connected The connection between the head 53 and the core tube 2 and the connection between the connecting head 53 and the connecting nut 54 are all provided with an O-shaped sealing ring 56; a sealing gasket 57 and a decorative cup 58 are arranged between the connecting nut 54 and the connecting pipe 5, and the decorative cup 58 is fixed on the connecting pipe 5 by a shaped ring 59.

Specifically, see Figures 1 and 4, the upper connection port 13 and the lower connection port 14 are respectively threadedly connected with connectors 6; each connector 6 includes a socket extending into the upper water outlet 22 or the lower water outlet 61, the first threaded part 62 connected with the upper connection port 13 or the lower connection port 14, and the second threaded part 63 for connecting with the shower head or bathtub faucet; the diameter of the insertion part 61 is smaller than the diameter of the first threaded part 62 , the diameter of the first threaded portion 62 is smaller than the diameter of the second threaded portion 63 , a first sealing ring 90 is sleeved on the insertion portion 61 , and a second sealing ring 91 is sleeved on the first threaded portion 62 . After the core tube 2 is inserted into the housing 1, the connector 6 is screwed in to limit the axial position of the core tube, and the assembly is simple and fast.

Preferably, as shown in FIG. 1 , a wear ring 7 is provided between the flow valve core 3 and the flow handwheel 31 , and between the gear valve core 4 and the gear handwheel 41 to increase the service life.

It can be understood that those skilled in the art can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention, and all these changes or replacements should belong to the protection scope of the appended claims of the present invention.

Claims (10)

1. A kind of 1. anti-scald water tap, it is characterised in that including housing, and the core pipe being plugged in housing；The core pipe both ends Offer cold water inlet and water inlet of hot water respectively, offered in the middle part of core pipe for supplied water to showerhead upper water-out mouth, And the lower outlet for being supplied water to Tap for bathtub, accordingly, housing both ends offer cold water connector and hot water connector, Housing central section offers connector and lower connector；Core pipe is provided with flow valve element close to one end of cold water inlet, the stream Amount valve element is connected with flow handwheel, and the other end of core pipe is provided with gear valve element, and the gear valve element is connected with gear handwheel；Core pipe Outer cold water pipe road and hot water pipeline are respectively communicated with by two connecting tubes；Between having between shell inner surface and core pipe outer surface Gap.
2. 2. anti-scald water tap according to claim 1, it is characterised in that the external diameter of the core pipe is less than the internal diameter of housing, Multiple annular projections are provided with the outer wall of core pipe along its length, the external diameter of annular projection and the internal diameter of housing are adapted.
3. 3. anti-scald water tap according to claim 2, it is characterised in that be located at water inlet of hot water and upper water-out in core pipe The caliber of one section of body between mouth/lower outlet is less than the caliber of other parts.
4. 4. anti-scald water tap according to claim 3, it is characterised in that be provided with inner walls and extend along its length Positioning convex, offer corresponding locating groove on the annular projection of core pipe.
5. 5. anti-scald water tap according to claim 4, it is characterised in that core pipe is made up of high temperature resistant nylon；The housing It is made up of copper alloy.
6. 6. anti-scald water tap according to claim 1, it is characterised in that the connecting tube is bent pin.
7. 7. anti-scald water tap according to claim 6, it is characterised in that be provided with filtering between the connecting tube and core pipe Net.
8. 8. anti-scald water tap according to claim 7, it is characterised in that be provided with non-return between the screen pack and core pipe Valve.
9. 9. anti-scald water tap according to claim 1, it is characterised in that lead to respectively on the upper connector and lower connector Cross and be threaded with connector；Each connector includes putting in the plug division of upper water-out mouth or lower outlet, with upper connector or First threaded portion of lower connector connection, and the second threaded portion for being connected with showerhead or Tap for bathtub；Plug division Diameter is less than the first threaded portion diameter, and the first threaded portion diameter is less than the second threaded portion diameter, and it is close to be arranged with first on plug division Seal, the second sealing ring is arranged with the first threaded portion.
10. 10. anti-scald water tap according to claim 1, it is characterised in that between flow valve element and flow handwheel, Yi Jidang Wear-resisting ring is provided between position valve element and gear handwheel.