CN220286514U

CN220286514U - Bottom-in bottom-out constant-temperature valve core

Info

Publication number: CN220286514U
Application number: CN202321866235.XU
Authority: CN
Inventors: 马永华
Original assignee: Ningbo Wanhai Valve Technology Co ltd
Current assignee: Ningbo Wanhai Valve Technology Co ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-01-02
Anticipated expiration: 2033-07-14

Abstract

The utility model relates to a constant-temperature valve core with a bottom inlet and a bottom outlet, which comprises a valve body, a valve body and a valve body, wherein the valve body is provided with a cold water inlet channel, a hot water inlet channel, a mixed water outlet channel and a mixed water cavity; a piston and a temperature sensing rod; a lower spring; a spring is arranged; a temperature-regulating valve rod; the method is characterized in that: the valve body comprises lower valve casing and last valve casing threaded connection, and inlet water passageway, play mixed water passageway and mixed water chamber are located on the lower valve casing, are equipped with the valve port in the mixed water chamber, and the valve port department is located to the piston, and inlet water passageway, inlet water passageway and play mixed water passageway's lower port all runs through the bottom surface of lower valve casing, inlet water passageway's upper port and the mixed water chamber intercommunication of valve port top, inlet water passageway's upper port and the mixed water chamber intercommunication of valve port below, play mixed water passageway and the bottom intercommunication of mixed water chamber. The constant temperature valve core can be assembled in the tap shell along the front-back direction (the length direction is vertical to the wall surface) in the tap, so that the constant temperature valve core is more convenient and humanized to use.

Description

Bottom-in bottom-out constant-temperature valve core

Technical Field

The utility model relates to a valve core for a faucet, in particular to a constant-temperature valve core with a bottom inlet and a bottom outlet.

Background

The constant temperature valve core is one of the mixed water valve cores, a thermosensitive element is arranged in a water outlet cavity of the constant temperature valve core, the thermosensitive element can rapidly respond to temperature change to push a telescopic rod to move, and the opening degree of a cold water inlet and a hot water inlet can be automatically adjusted, so that the water inflow of cold water and hot water can be automatically balanced in a short time, the temperature of mixed water can be automatically kept at a set temperature, the stability of the water outlet temperature is kept, and the constant temperature valve core is widely applied to constant temperature water heaters and constant temperature water faucets.

In order to solve the problems, chinese patent No. ZL200420045079.1 (grant publication No. CN 2690689Y) discloses a temperature-sensing movable valve core and a constant-temperature valve core using the same, wherein the temperature-sensing movable valve core comprises a piston arranged in the constant-temperature valve core, a counter bore is arranged in the center of the piston, one end of the counter bore is fixedly connected with a temperature sensing rod, a thermosensitive material is filled in the temperature sensing rod, the other end of the counter bore is fixedly connected with a valve rod seat, and a slidable valve rod is arranged in a through hole of the valve rod seat; the piston is distributed with circular water holes along the circumference. The temperature-sensing movable valve core is arranged in a cavity in the constant-temperature valve core valve body, a hot water inlet and a cold water inlet which are respectively positioned at two ends of the piston are arranged on the side wall of the valve body, and a water mixing outlet communicated with the water mixing cavity is also arranged at the bottom end of the valve body; cold water flows in from the cold water inlet and then enters the mixing water cavity through the water hole, hot water enters the water mixing water cavity from the hot water inlet, the temperature sensing rod senses the temperature of the water mixing cavity and reacts in time and slides in the constant-temperature valve core, so that the sizes of the water inlet and the water outlet of the constant-temperature valve core are changed, and the purpose of balancing the water temperature is achieved.

Chinese utility model patent No. zl201920724433.X (issued publication No. CN 210218782U) also discloses a thermostatic valve core.

Because of the inside unique structural feature of constant temperature case, for making things convenient for rivers to get into, the rivers flow direction that leads to current constant temperature case is lateral part water inlet, bottom water outlet, and this kind of constant temperature case all along controlling the direction (its length direction is parallel with the wall) assembly in the tap casing in tap, this also makes the shower tap of current adoption constant temperature case its operation of adjusting temperature all in the lateral part, and the user needs the side to observe the handle of adjusting temperature, just can learn the direction of adjusting temperature, uses inconveniently.

Therefore, there is a need for developing a constant temperature faucet capable of regulating temperature in the front (the user faces the wall), and improvement of the existing constant temperature valve core is needed.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a bottom-in bottom-out constant-temperature valve core which has a reasonable structure and can realize front temperature adjustment of a constant-temperature faucet.

The technical scheme adopted for solving the technical problems is as follows: the constant temperature valve core with the bottom inlet and the bottom outlet comprises a valve body, a valve body and a valve body, wherein the valve body is provided with a cold water inlet channel, a hot water inlet channel, a mixed water outlet channel and a mixed water cavity; the temperature sensing rod is positioned in the mixing water cavity, the piston is arranged on the temperature sensing rod, and the piston is provided with a water flow passage which axially penetrates through the piston; the lower spring is arranged in the mixing water cavity and acts on the temperature sensing rod from bottom to top; the upper spring is arranged in the valve body and acts on the temperature sensing rod from top to bottom; the temperature-adjusting valve rod is penetrated at the upper end of the valve body, and the temperature-sensing rod can be controlled to act by rotating the temperature-adjusting valve rod around the axis of the temperature-adjusting valve rod; the method is characterized in that: the valve body comprises lower valve casing and last valve casing threaded connection, advance cold water passageway, advance hot water passageway, play mixed water passageway and mixed water chamber and locate on the lower valve casing, mix the intracavity and be equipped with the valve port, the valve port department is located to the piston, is equipped with first sealing washer seal between piston periphery and the valve port, advance cold water passageway, advance hot water passageway and go out the bottom surface of mixing the water passageway and all run through the valve casing down, advance the upper port of cold water passageway and the mixed water chamber intercommunication of valve port top, advance the upper port of hot water passageway and the mixed water chamber intercommunication of valve port below, go out the bottom intercommunication of mixed water passageway and mixed water chamber.

For the convenience of assembly, ensure that upper and lower valve casing combines firmly, above-mentioned lower valve casing has the insert portion that upwards extends, upper valve casing has the ladder through-hole, insert portion from bottom to top and threaded connection in the macropore portion of ladder through-hole, be equipped with upper seal circle and lower sealing washer between the macropore portion inner wall of insert portion and ladder through-hole, upper seal circle is located the top of threaded connection department, lower sealing washer is located the below of threaded connection department. The height of the insertion part is higher, and the contact area between the insertion part and the large hole part of the stepped through hole is large, so that the insertion part and the large hole part are combined more firmly, the insertion part and the large hole part are combined together in a threaded connection mode, the assembly is convenient, and meanwhile, the sealing rings are arranged above and below the threaded connection position, so that water leakage is effectively avoided; due to the design of the insertion part of the lower valve casing, the lower valve casing has a certain thickness, and a higher mixing water cavity can be formed in the lower valve casing, so that the temperature sensing rod is convenient to assemble.

As an improvement, the small hole part of the stepped through hole of the upper valve casing is internally restricted with a transmission joint which can only move up and down, a spring cavity is arranged in the transmission joint, a spring seat is arranged in the spring cavity, the upper spring is arranged in the spring cavity, the lower end of the upper spring is supported on the spring seat, the upper end of the temperature sensing rod is supported below the spring seat, the top of the transmission joint is provided with a transmission threaded hole, and the lower end of the temperature adjusting valve rod is in threaded connection with the transmission threaded hole. The transmission joint is arranged to provide proper installation positions for the upper spring, the upper spring is in linkage with the temperature sensing rod through the spring seat, the temperature adjusting valve rod is in threaded connection with the transmission joint, the transmission joint can only move up and down and cannot rotate, therefore, the upper and lower positions of the transmission joint can be adjusted by rotating the temperature adjusting valve rod, the upper and lower positions of the piston on the temperature sensing rod are adjusted, and the adjustment of water temperature is realized.

As a setting structure for enabling the transmission joint to only move up and down and not rotate, the outer peripheral wall of the transmission joint is provided with a rotation stopping part with a polygonal cross section and an annular shape, and the cross section of the small hole part of the stepped through hole is polygonal and matched with the rotation stopping part. Of course, the method can also be realized by adopting a mode of matching the ribs and the grooves.

In order to prevent the spring seat from sliding out of the spring cavity, preferably, the lower end in the spring cavity is provided with a hole clamp spring for limiting the downward movement of the spring seat. Of course, other spacing structures may be employed.

Compared with the prior art, the utility model has the advantages that: the valve core is ingenious with the inlet end of advancing cold water passageway, advance hot water passageway and play mixed water passageway locate the bottom surface of below shell, will advance cold water passageway simultaneously, advance hot water passageway and upwards extend to the middle part position of valve body from the valve casing down, and communicate with mixed water cavity, consequently this constant temperature case can all be along the front and back direction (its length direction is perpendicular with the wall) assembly in the tap casing in tap, and then make the shower tap of current adoption constant temperature case its operation of adjusting temperature to the place ahead, the user front wall alright run through the temperature handle, learn the direction of adjusting temperature, it is more convenient humanized to use.

Drawings

FIG. 1 is a first perspective view of an embodiment of the present utility model;

FIG. 2 is a second perspective view of the present utility model;

FIG. 3 is a cross-sectional view of an embodiment of the present utility model;

FIG. 4 is an exploded perspective view of an embodiment of the present utility model;

fig. 5 is a schematic perspective view of a lower valve housing in accordance with an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 5, is a preferred embodiment of the present utility model.

A constant temperature valve core with a bottom inlet and a bottom outlet, which comprises

The valve body 1 has a cold water inlet passage 1a, a hot water inlet passage 1b, a mixed water outlet passage 1c, and a mixed water chamber 1d.

The temperature sensing rod 3 is positioned in the mixing water cavity 1d, the piston 2 is connected to the temperature sensing rod 3 in a threaded manner, and the piston 2 is provided with an axially penetrating water flow passage 21. The structure of the piston 2 and the temperature sensing rod 3 can refer to the prior art.

The lower spring 4a is arranged in the mixing water cavity 1d and acts on the temperature sensing rod 3 from bottom to top.

The upper spring 4b is provided in the valve body 1 and acts on the temperature sensing rod 3 from top to bottom.

The temperature-adjusting valve rod 5 is arranged at the upper end of the valve body 1 in a penetrating way, and the temperature-adjusting valve rod 5 can control the temperature-sensing rod 3 to act around the axis of the valve body to realize temperature adjustment.

The main improvement points of the utility model are as follows: the valve body 1 is formed by connecting a lower valve shell 11 and an upper valve shell 12 in a threaded manner, the cold water inlet channel 1a, the hot water inlet channel 1b, the mixed water outlet channel 1c and the mixed water cavity 1d are arranged in the lower valve shell 11, a valve port 1e is arranged in the mixed water cavity 1d, the piston 2 is arranged at the valve port 1e, a sealing ring 6c is arranged between the periphery of the piston 2 and the valve port 1e for sealing, the lower ports of the cold water inlet channel 1a, the hot water inlet channel 1b and the mixed water outlet channel 1c penetrate through the bottom surface of the lower valve shell 11, the upper port of the cold water inlet channel 1a is communicated with the mixed water cavity 1d above the valve port 1e, the upper port of the hot water inlet channel 1b is communicated with the mixed water cavity 1d below the valve port 1e, and the mixed water outlet channel 1c is communicated with the bottom of the mixed water cavity 1d.

The lower valve housing 11 has an upwardly extending insertion portion 111, the upper valve housing 12 has a stepped through hole 121, the insertion portion 111 is inserted from bottom to top and is screwed into a large hole portion of the stepped through hole 121, an upper sealing ring 6a and a lower sealing ring 6b are disposed between the insertion portion 111 and an inner wall of the large hole portion of the stepped through hole 121, the upper sealing ring 6a is located above the screwed connection portion, and the lower sealing ring 6b is located below the screwed connection portion.

The transmission joint 7 which can only move up and down is restrained in the small hole part of the stepped through hole of the upper valve shell 12, a spring cavity 71 is arranged in the transmission joint 7, a spring seat 8 is arranged in the spring cavity 71, and a hole clamp spring 9 which limits the downward movement of the spring seat 8 is arranged at the lower end in the spring cavity 71. The upper spring 4b is arranged in the spring cavity 71, the lower end of the upper spring 4b is supported on the spring seat 8, the upper end of the temperature sensing rod 3 is supported below the spring seat 8, the top of the transmission joint 7 is provided with a transmission threaded hole 72, and the lower end of the temperature adjusting valve rod 5 is in threaded connection with the transmission threaded hole 72. The outer peripheral wall of the transmission joint 7 has a rotation stopping portion 73 having a polygonal cross section and an annular shape, and the cross section of the small hole portion of the stepped through hole 121 has a polygonal cross section matching the rotation stopping portion 73.

The principle of constant temperature and the temperature regulation mode of the constant temperature valve core are basically the same as those of the existing constant temperature valve core, and are not described again. The constant temperature valve core is ingenious, the inlet ends of the cold water inlet channel 1a, the hot water inlet channel 1b and the mixed water outlet channel 1c are arranged on the bottom surface of the lower shell, meanwhile, the cold water inlet channel 1a and the hot water inlet channel 1b extend upwards from the inside of the lower valve shell 11 to the middle position of the valve body 1 and are communicated with the mixed water cavity 1d, and therefore the constant temperature valve core can be assembled in the faucet shell along the front-back direction (the length direction of the constant temperature valve core is perpendicular to the wall surface) in the faucet, and further the temperature adjustment operation of the existing shower faucet adopting the constant temperature valve core is adjusted to the front, the front wall surface of a user can penetrate through a temperature handle, the temperature adjustment direction is known, and the constant temperature valve core is more convenient to use.

It should be noted that, in the description of the present embodiment, the terms "front, rear", "left, right", "upper, lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims

1. A constant temperature valve core with a bottom inlet and a bottom outlet, which comprises

The valve body (1) is provided with a cold water inlet channel (1 a), a hot water inlet channel (1 b), a mixed water outlet channel (1 c) and a mixed water cavity (1 d);

the device comprises a piston (2) and a temperature sensing rod (3), wherein the temperature sensing rod (3) is positioned in a mixing water cavity (1 d), the piston (2) is arranged on the temperature sensing rod (3), and an axially penetrating water flow passage (21) is formed in the piston (2);

the lower spring (4 a) is arranged in the mixing water cavity (1 d) and acts on the temperature sensing rod (3) from bottom to top;

an upper spring (4 b) arranged in the valve body (1) and acting on the temperature sensing rod (3) from top to bottom;

the temperature-adjusting valve rod (5) is arranged at the upper end of the valve body (1) in a penetrating way, and the temperature-sensing rod (3) can be controlled to act by rotating the temperature-adjusting valve rod (5) around the axis of the temperature-adjusting valve rod;

the method is characterized in that: the valve body (1) comprises lower valve casing (11) and last valve casing (12) threaded connection, advance cold water channel (1 a), advance hot water channel (1 b), go out mixed water channel (1 c) and mix water cavity (1 d) passageway and locate on lower valve casing (11), be equipped with valve port (1 e) in mixing water cavity (1 d), valve port (1 e) department is located to piston (2), is equipped with sealing washer (6 c) between piston (2) periphery and valve port (1 e), advance cold water channel (1 a), advance the lower port of hot water channel (1 b) and play mixed water channel (1 c) and all run through the bottom surface of lower valve casing (11), advance the upper port of cold water channel (1 a) and mix water cavity (1 d) intercommunication above valve port (1 e), advance the upper port of hot water channel (1 b) and mix water cavity (1 d) intercommunication below valve port (1 e), go out mixed water channel (1 c) and mix the bottom intercommunication of water cavity (1 d).

2. The bottom in bottom out thermostatic valve cartridge of claim 1, wherein: the lower valve casing (11) is provided with an inserting part (111) extending upwards, the upper valve casing (12) is provided with a stepped through hole (121), the inserting part (111) is inserted from bottom to top and is in threaded connection with the inside of the large hole of the stepped through hole (121), an upper sealing ring (6 a) and a lower sealing ring (6 b) are arranged between the inserting part (111) and the inner wall of the large hole of the stepped through hole (121), the upper sealing ring (6 a) is located above the threaded connection part, and the lower sealing ring (6 b) is located below the threaded connection part.

3. The bottom in bottom out thermostatic valve cartridge of claim 2, wherein: the utility model discloses a temperature-regulating valve is characterized in that a transmission joint (7) capable of only moving up and down is restrained in a small hole part of a stepped through hole of an upper valve shell (12), a spring cavity (71) is arranged in the transmission joint (7), a spring seat (8) is arranged in the spring cavity (71), an upper spring (4 b) is arranged in the spring cavity (71), the lower end of the upper spring (4 b) is supported on the spring seat (8), the upper end of a temperature-sensing rod (3) is supported below the spring seat (8), a transmission threaded hole (72) is formed in the top of the transmission joint (7), and the lower end of the temperature-regulating valve rod (5) is in threaded connection with the transmission threaded hole (72).

4. The bottom in bottom out thermostatic valve cartridge of claim 3, wherein: the outer peripheral wall of the transmission joint (7) is provided with a rotation stopping part (73) with a polygonal cross section and a ring shape, and the cross section of the small hole part of the stepped through hole (121) is polygonal matched with the rotation stopping part (73).

5. The bottom in bottom out thermostatic valve cartridge of claim 3, wherein: the lower end in the spring cavity (71) is provided with a hole clamp spring (9) for limiting the downward movement of the spring seat (8).