CN216789311U - Push type constant temperature equipment - Google Patents

Abstract

The utility model provides a pressing type thermostatic device which comprises a pressing type thermostatic valve, wherein the pressing type thermostatic valve comprises a valve shell, a rotary sleeve, a valve plug, a reset spring, a pressing type switch valve, a movable sleeve, an overload displacement piece, a buffer spring and a temperature sensing assembly; the valve shell and the rotary sleeve are provided with a main water channel and a cavity for installing other components, and the push switch valve can be pressed to open and close the circulation of mixed water; the rotating sleeve can be used for rotating to axially actuate the axial moving sleeve, so as to link the buffer spring, the overload displacement piece, the temperature sensing component and the valve plug to synchronously and axially displace, and the return spring is matched to act on the valve plug, so that the mixing proportion of cold water and hot water entering the mixing chamber can be adjusted, and the temperature adjusting effect is achieved; the temperature sensing assembly is arranged in the mixing chamber, can sense the temperature change of the mixed water and react to achieve the constant temperature effect.

Description

Push type constant temperature equipment

Technical Field

The present invention relates to a valve assembly of a shower device, and more particularly to a push-type thermostat device which can be pressed by a user to switch and adjust the temperature of the outlet water and has a thermostatic function.

Background

As is well known, a thermostat or a thermostatic valve is often installed in existing showering equipment to solve the problem of sudden cooling and sudden heating caused by unstable water pressure or other reasons during showering and even achieve the effect of scald prevention, and most of the thermostats or thermostatic valves use a temperature sensing component installed inside to detect the temperature of mixed water.

Taiwan publication No. 456484 discloses a thermostatic control valve structure, which comprises a housing, an elastic component, a slider, a link component, a temperature sensing component, a pre-pressing elastic component, a driven component and a rotary shaft, wherein when a user wants to set a temperature of water for use, the rotary shaft is rotated to drive the driven component to perform linear displacement, so as to drive the pre-pressing elastic component, the temperature sensing component, the link component and the slider to perform linear displacement synchronously, and thus, the size of a cold water inlet and a hot water inlet can be adjusted and controlled by the blocking displacement of the slider, so as to achieve the effect of adjusting and controlling the temperature of mixed water. It can be easily understood that when the temperature of the mixed water is increased or decreased due to the change of the mixing ratio of the cold water and the hot water, the temperature sensing component can be used for automatically adjusting the cold water inflow and the hot water inflow due to the relative extension or shortening of the temperature sensing component caused by expansion and contraction, so that the constant temperature effect is achieved, and even when the temperature of the mixed water is too high, the hot water inlet can be naturally sealed, so that the scald preventing effect is achieved.

However, although the existing thermostatic device or the structure similar to the thermostatic control valve has the functions of temperature adjustment and constant temperature, the existing thermostatic device is lack of the switch function, and the switch can only be performed by the tail end water outlet device, so even if the tail end water outlet device is not closed in the non-water state, or the water leakage situation can be generated due to the damage of a water path and components, and the switch protection cannot be performed by one time.

A pressing switch valve is disclosed in a sanitary installation, such as the Chinese patent publication No. CN110546331B, wherein the concealed box mounting member comprises three buttons for controlling the flow rate and the mixed water to different water outlets, and a knob for adjusting the temperature of the mixed water, wherein when the button is pressed by a user, a pressing switch valve is activated to open or close the water flow, although the concealed box mounting member can control the temperature of the mixed water by the knob, the knob and the buttons are separately arranged on a support plate and cannot be coaxially arranged with each other, so that the support plate and the entire concealed box mounting member are bulky, thereby increasing the manufacturing cost and limiting the aesthetic appearance, is more unfavorable for the installation of narrow and small wall.

Although this secretly adorn box installed part can utilize the knob to control the mixed water temperature, nevertheless because do not have general common constant temperature structural design, consequently, still can't solve the problem that traditional shower water temperature suddenly changes cold suddenly hot.

The constant temperature device is characterized in that a pressure balance valve or a temperature and pressure valve is arranged in the constant temperature device, the constant temperature effect of the pressure balance valve is achieved by detecting the change of water pressure, the constant temperature effect is obviously lower than the constant temperature effect of the constant temperature component by detecting the change of water temperature, particularly, the response speed to the change of water temperature is low, and the error value is higher.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a pressing type constant temperature device which has the functions of pressing a switch, adjusting temperature and keeping constant temperature, is simple in structure, easy to disassemble, assemble, maintain and replace, and small in size, is particularly beneficial to being installed on narrow wall surfaces, and is not limited in modeling design and appearance aesthetic feeling.

In order to achieve the above object, the present invention provides a pressing type thermostatic device, which includes a pressing type thermostatic valve, the pressing type thermostatic valve includes a valve housing, a rotary sleeve, a valve plug, a return spring, a pressing type switch valve, a movable sleeve, an overload displacement member, a buffer spring and a temperature sensing assembly; wherein:

the rotary sleeve is rotatably sleeved with the valve shell, the valve shell and the rotary sleeve are defined with a cold water inlet channel, a hot water inlet channel, a water inlet cavity, a spring positioning groove, a mixing cavity and a mixed water outlet channel which are communicated, and the cold water inlet channel and the hot water inlet channel are respectively provided with a cold water inlet and a hot water inlet at the communication part of the water inlet cavity;

the valve plug is provided with a piston part and a connecting part which are connected, the piston part is embedded and sealed on the inner peripheral wall of the water inlet chamber and is limited to move in an axial range so as to control the size of the water passing area of the cold water inlet and the hot water inlet communicated with the water inlet chamber, and meanwhile, the valve plug allows cold water and hot water from the cold water inlet and the hot water inlet to pass through and enter the mixing chamber;

the return spring can be accommodated and positioned in the spring positioning groove, two ends of the return spring respectively elastically abut against the opposite parts of the valve shell and the piston part, and the valve plug is forced to axially move and reset in the direction of increasing the water passing area between the hot water inlet and the water inlet chamber according to the elastic restoring force of the return spring;

the push type switch valve is fixed on the rotary sleeve and is provided with a push part, a mixed water inlet communicated with the mixing chamber and a mixed water outlet communicated with the mixed water outlet channel, and the push part is pushed to open and close to control the mixed water inlet and the mixed water outlet to be communicated with each other;

the axial moving sleeve is embedded and sealed in the mixing chamber in a limited rotation manner and is mutually screwed with the rotating sleeve, so that the axial moving sleeve can move up and down along the axial direction along with the rotation of the rotating sleeve, and a buckling hole is formed in the axial moving sleeve;

the overload displacement piece is provided with an elastic barb part, can be elastically penetrated through the buckling hole of the axial displacement sleeve and then axially retained at the buckling hole, and allows mixed water formed by mixing cold water and hot water entering the mixing cavity to flow to the mixed water inlet through the buckling hole;

the buffer spring is sleeved outside the overload displacement part in a penetrating way, and two ends of the buffer spring respectively and elastically abut against the opposite parts of the axial displacement sleeve and the overload displacement part, so that the axial displacement sleeve can be linked with the overload displacement part to axially move through the buffer spring;

the temperature sensing component is provided with a metal end and a piston end, the metal end and the piston end are respectively inserted and positioned at the connecting part of the valve plug and are propped against and positioned at the opposite part of the overload displacement component, and the overload displacement component can move synchronously with the temperature sensing component and the valve plug so that the valve plug axially moves in the direction of increasing the water passing area between the cold water inlet and the water inlet chamber.

The valve shell of the push type thermostatic device comprises a bottom shell seat, an upper shell sleeved on the bottom shell seat and an intermediate shell which can be clamped and positioned between the bottom shell seat and the upper shell in a rotation-limited manner; the bottom shell seat is provided with the cold water inlet channel, the hot water inlet channel, at least part of the water inlet cavity, part of the mixed water outlet channel and a spring positioning groove; the bottom of the middle shell and the bottom shell seat jointly define the water inlet cavity, the outer peripheral wall of the middle shell and the inner peripheral wall of the upper shell jointly define a part of mixed water outlet channel, the middle shell is provided with a plurality of water through holes for forming a part of mixed water outlet channel, a containing groove and a through hole which are communicated are formed inside the middle shell, at least a part of the mixing cavity can be jointly defined by the containing groove and the inside of the shaft moving sleeve, and the connecting part of the valve plug can pass through the through hole.

The rotary sleeve of the pressing type constant temperature device is provided with a seat part and a sleeve extending from the bottom end of the seat part, a mounting groove and a pipe groove which are communicated are respectively formed in the rotary sleeve, the pressing type switch valve can be mounted in the mounting groove in a rotation limiting manner, one part of the pressing type switch valve is nested and sealed in the pipe groove, and the bottom end of the pressing type switch valve is provided with the mixed water inlet; the top end of the seat part is provided with a driving part for rotation, a shoulder part is formed on the outer peripheral wall, and the seat part is axially limited at the top end of the upper shell; the pipe groove of the sleeve can be used for the shaft-moving sleeve to be sleeved in a sealing sliding way and screwed with each other, and the pipe wall of the sleeve is provided with at least one water through hole for communicating a mixed water through outlet of the pressing type switch valve and a mixed water outlet channel.

The valve plug of the press type thermostatic device is provided with a hot water limber hole inside the piston part, and hot water from the hot water inlet enters the water inlet chamber and then flows into the mixing chamber through the perforation of the middle shell; the connecting part of the valve plug is in a sleeve shape, the top end of the valve plug is provided with a positioning hole for nesting and positioning the metal end of the temperature sensing assembly, and the pipe wall of the valve plug is provided with a plurality of water passing ports for cold water from the cold water inlet to enter the water inlet chamber and the through hole of the middle shell and then flow into the mixing chamber.

The middle shell of the pressing type constant temperature device is provided with a peripheral wall, an embedding part extending from the bottom end of the peripheral wall and an annular part extending from the peripheral wall of the peripheral wall; the bottom end of the annular part is convexly provided with an embedding block which can be embedded into an embedding groove arranged at the opposite part of the bottom shell seat, so that the middle shell can be positioned on the bottom shell seat in a limited rotation way; the peripheral wall defines the containing groove therein, and a plurality of clamping grooves are concavely arranged from the top edge, so that a plurality of clamping blocks are convexly arranged on the peripheral wall of the shaft-moving sleeve to be embedded, clamped and positioned, thereby limiting the shaft-moving sleeve to rotate; the peripheral wall of the peripheral wall is concavely provided with a plurality of grooves extending along the axial direction and used for forming a part of the mixed water outlet channel; the annular part is provided with a plurality of water passing holes which are distributed annularly at the position adjacent to the peripheral wall; the caulking part can be nested and sealed in the bottom shell seat, so that the caulking part and the bottom shell seat mutually define the water inlet chamber.

The overload displacement piece of the pressing type constant temperature device is provided with a sleeving part and an elastic barb part connected with the sleeving part; the sleeving part can be used for nesting and positioning the piston end of the temperature sensing component, and an annular flange is formed on the outer peripheral wall of the bottom end of the sleeving part and can be used for abutting and positioning the opposite end of the buffer spring; the elastic barb part comprises a plurality of elastic hooks which can penetrate through the buckling hole of the axial moving sleeve by means of elastic condensation and then axially restrict the barb at the buckling hole; the elastic hooks are respectively provided with a water passing groove for mixed water formed by mixing cold water and hot water entering the mixing chamber to pass through and flow to a mixed water passing inlet of the press type switch valve along the button hole.

The pressing type constant temperature device further comprises an installation seat, wherein the installation seat comprises a water through seat body, an outer sleeve and a valve assembly; the water passing base body is provided with an installation cavity, and a cold water supply channel, a hot water supply channel, a first water outlet channel and a second water outlet channel which are respectively communicated with the installation cavity; the installation cavity is used for installing and positioning the press type thermostatic valve, so that the cold water supply channel and the hot water supply channel can be respectively communicated with the cold water inlet channel and the hot water inlet channel of the press type thermostatic valve, and the first water outlet channel and the second water outlet channel are respectively communicated with the mixed water outlet channel; the cold water supply channel and the hot water supply channel are respectively provided with a switch valve seat for installing and positioning the valve assembly so as to switch and control the cold water supply channel and the hot water supply channel; the outer sleeve can be screwed on the water-through seat body so as to tightly lock and tighten the pressing type thermostatic valve in the installation cavity.

The pressing type constant temperature device further comprises a reverse backflow component which is arranged in the installation cavity at the bottom end of the pressing type constant angry valve so as to prevent cold water and hot water from flowing into the cold water inlet channel and the hot water inlet channel from the cold water supply channel and the hot water supply channel from flowing back.

The reverse-flow component of the pressing type constant-temperature device comprises a body and two reverse-flow valves; the body is arranged and positioned in an installation cavity at the bottom end of the press type thermostatic valve, two positioning plug grooves are formed on the body and are respectively communicated with a cold water inlet channel and a hot water inlet channel which are opposite through a water flow through hole; the reverse-flow valve system is arranged and positioned in each positioning plug groove.

The push type thermostatic device of the utility model skillfully integrates the coaxial installation of the push type switch valve in the temperature adjusting and thermostatic structure to form the push type thermostatic valve, so that the push type thermostatic valve not only can be easily assembled and disassembled on the installation seat, but also has the functions of pressing the switch, adjusting the temperature and keeping the temperature, simultaneously has simplified structure, is easy to assemble, disassemble, maintain and replace, can reduce the production and manufacturing cost, has small integral volume, is particularly beneficial to being installed on narrow wall surfaces, and has unlimited shape design and appearance aesthetic feeling.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an assembled view of an appearance of a pressing type thermostat device according to a first embodiment of the present invention.

Fig. 2 is a cross-sectional view of fig. 1 taken along section line 1-1.

Fig. 3 is a cross-sectional view of fig. 1 taken along section line 2-2.

Fig. 4 is a perspective exploded view of a push type thermostat device according to a first embodiment of the present invention.

FIG. 5 is a sectional view of the push type thermostatic valve of FIG. 2 according to the present invention, illustrating a flow state of cold, hot water and mixed water.

FIG. 6 is a sectional view of the push type thermostatic valve of FIG. 3 according to the present invention, illustrating a flow state of cold, hot water and mixed water.

FIG. 7 is an exploded perspective view of the push type thermostatic valve according to the first embodiment of the present invention.

Fig. 8 is a perspective cross-sectional view of the valve housing and swivel sleeve of the first embodiment of the present invention in an assembled state.

Fig. 9 is another perspective cross-sectional view of the valve housing and rotating sleeve of the first embodiment of the present invention in an assembled state.

FIG. 10 is a perspective view of a valve plug according to a first embodiment of the present invention.

FIG. 11 is a perspective view of a push type switch valve according to the first embodiment of the present invention.

FIG. 12 is an assembled sectional view of the intermediate housing, the axial-shift sleeve, the damping spring, the overload displacement member, the temperature sensing element and the valve plug according to the first embodiment of the present invention.

Fig. 13 is a perspective sectional view showing an assembled state of the intermediate housing and the shaft shift sleeve in the first embodiment of the present invention.

Fig. 14 is a perspective sectional view of a rotating sleeve according to the first embodiment of the present invention.

FIG. 15 is a sectional view of the push type thermostat device according to the second embodiment of the present invention, taken along the hot and cold water supply passages.

Detailed Description

The utility model is further described below with reference to the following figures and examples.

As shown in fig. 1 to 7, the present invention provides a first embodiment of a push type thermostat device, the push type thermostat device 1 includes a push type thermostat valve 1a, the push type thermostat valve 1a includes a valve housing 10, a rotary sleeve 20, a valve plug 30, a return spring 301, a push type switch valve 40, a displacement sleeve 50, an overload displacement member 60, a buffer spring 601 and a temperature sensing assembly 70; wherein:

the rotary sleeve 20, as shown in fig. 8 and 9, can be rotatably sleeved with the valve housing 10, so that the valve housing 10 and the rotary sleeve 20 define a cold water inlet channel 100, a hot water inlet channel 101, a water inlet chamber 102, a spring positioning slot 103, a mixing chamber 104 and a mixed water outlet channel 105, which are communicated with each other, and the cold water inlet channel 100 and the hot water inlet channel 101 are respectively formed with a cold water inlet 106 and a hot water inlet 107 at the communication position of the water inlet chamber 102.

The valve plug 30, as shown in fig. 5, 6 and 10, has a piston portion 31 and a connecting portion 32 connected to each other, the piston portion 31 is caulked and sealed to the inner peripheral wall of the water inlet chamber 102 and is limited to move within a certain axial range, so as to control the amount of the water passing area of the cold water inlet 106 and the hot water inlet 107 communicating with the water inlet chamber 102, and the valve plug 30 allows the cold water and the hot water from the cold water inlet 106 and the hot water inlet 107 to pass through into the mixing chamber 104.

The restoring spring 301 is accommodated and positioned in the spring positioning groove 103, and two ends of the restoring spring elastically abut against the opposite portions of the valve housing 10 and the piston portion 31, respectively, so as to force the valve plug 30 to axially move and restore in a direction of increasing the water passing area between the hot water inlet 107 and the water inlet chamber 102 by its elastic restoring force.

The push switch valve 40, as shown in fig. 7 and 11, can be fixed on the rotating sleeve 20, and has a push portion 41, a mixed water inlet 42 for communicating with the mixing chamber 104, and a mixed water outlet 43 for communicating with the mixed water outlet channel 105, and can control the communication between the mixed water inlet 42 and the mixed water outlet 43 by pushing the push portion 41 to open and close.

The axial moving sleeve 50 is, as shown in fig. 7, 12 and 13, rotatably fitted in the mixing chamber 104, and is screwed with the rotary sleeve 20 so as to be vertically movable in the axial direction in accordance with the rotation of the rotary sleeve 20, and is provided with a snap hole 51.

The overload displacement member 60 has an elastic barb portion 61 for elastically passing through the buckling hole 51 of the axial displacement sleeve 50 and axially retaining the barb at the buckling hole 51, and allowing the mixed water formed by mixing the cold water and the hot water entering the mixing chamber 104 to flow to the mixed water inlet 42 through the buckling hole 51.

The buffer spring 601 is sleeved outside the overload displacement member 60, and two ends of the buffer spring are respectively elastically abutted against the corresponding positions of the axial displacement sleeve 50 and the overload displacement member 60, so that the axial displacement sleeve 50 can drive the overload displacement member 60 to axially move through the buffer spring 601.

The temperature sensing element 70 has a metal end 71 and a piston end 72, which are respectively inserted into the connecting portion 32 of the valve plug 30 and abut against the opposite portion of the overload displacement member 60, so that the overload displacement member 60 can synchronously actuate the temperature sensing element 70 and the valve plug 30, and the valve plug 30 is forced to move axially in a direction to increase the water passing area between the cold water inlet 106 and the water inlet chamber 102.

In the present embodiment, as shown in fig. 8, 9 and 13, the valve housing 10 includes a bottom housing seat 11, an upper housing 12 sleeved on the bottom housing seat 11, and an intermediate housing 13 clamped between the bottom housing seat 11 and the upper housing 12 in a rotation-limited manner; the bottom shell seat 11 is formed with the cold water inlet channel 100, the hot water inlet channel 101, most of the water inlet chamber 102, a part of the mixed water outlet channel 105 and a spring positioning slot 103; the bottom of the middle housing 13 and the bottom housing 11 together define the water inlet chamber 102, and the outer peripheral wall and the inner peripheral wall of the upper housing 12 together define a part of the mixed water outlet channel 105, and further have a plurality of water holes 131 formed thereon to form a part of the mixed water outlet channel 105, and a receiving groove 132 and a through hole 133 are formed therein and communicated with each other, so that the receiving groove 132 and the axial sleeve 50 together define a majority of the mixing chamber 104, and the connecting portion 32 of the valve plug 30 passes through the through hole 133.

In this embodiment, as shown in fig. 14, the rotary sleeve 20 has a seat 21 and a sleeve 22 extending from the bottom end of the seat 21, and a mounting groove 211 and a pipe groove 221 communicating with each other are formed in the interior thereof, the push-type switch valve 40 is installed in the mounting groove 211 in a rotation-limited manner, and a portion of the push-type switch valve is nested and sealed in the pipe groove 221, and the bottom end thereof is formed with the mixed water inlet 42; the top end of the seat 21 has a driving portion 212 for rotation, and the outer peripheral wall is formed with a shoulder 213, which can be axially limited at the top end of the upper housing 12; the tube groove 221 of the sleeve 22 is for the shaft-moving sleeve 50 to be slidably sleeved therein and screwed with each other, and the wall thereof is provided with at least one water hole 222 for communicating the mixed water outlet 43 of the press-type switch valve 40 and the mixed water outlet passage 105.

It is easy to think that, as shown in fig. 9, 11 and 14, in order to limit the rotation of the press switch valve 40 in the mounting groove 211, a limit slot 214 is disposed on the inner peripheral wall of the mounting groove 211, and a limit block 44 is disposed on the outer peripheral wall of the press switch valve 40 and axially inserted into the limit slot 214 to achieve the effect of limiting the rotation, and at the same time, a screw 40a and the rotary sleeve 20 can be mutually screwed to fix the press switch valve 40 in the mounting groove 211, as shown in fig. 5.

As shown in fig. 7, in order to axially limit the shoulder 213 of the rotating sleeve 20 at the top end of the upper housing 12, a sliding groove 120 is disposed on the outer peripheral wall of the upper housing 12 near the top end, and when an axial limiting ring 200 is slid on the shoulder 213 of the rotating sleeve 20 and the top end of the upper housing 12, a block 201 protruding from the bottom edge of the axial limiting ring 200 is locked and positioned after passing through the sliding groove 120, so as to achieve the effect of limiting the axial displacement of the rotating sleeve 20, thereby preventing the rotating sleeve 20 from being separated from the upper housing 12.

The top end of the seat 21 has a driving portion 212 for rotation, and the outer peripheral wall is formed with a shoulder 213, which can be axially limited at the top end of the upper housing 12; the tube groove 221 of the sleeve 22 is for the shaft-moving sleeve 50 to be slidably sleeved therein and screwed with each other, and the wall thereof is provided with at least one water hole 222 for communicating the mixed water outlet 43 of the press-type switch valve 40 and the mixed water outlet passage 105.

In this embodiment, as shown in fig. 10 and 12, a hot water through hole 311 is formed inside the piston portion 31 of the valve plug 30, and hot water from the hot water inlet 107 enters the inlet chamber 102 and then flows into the mixing chamber 104 through the through hole 133 of the middle housing 13; the connecting portion 32 of the valve plug 30 is in a sleeve shape, and has a positioning hole 321 at the top end thereof for nesting and positioning the metal end 71 of the temperature sensing element 70, and a plurality of water passing holes 322 are formed on the wall thereof for allowing the cold water from the cold water inlet 106 to enter the water inlet chamber 102 and the through hole 133 of the middle housing 13 and then flow into the mixing chamber 104.

In the present embodiment, as shown in fig. 7, 12 and 13, the middle housing 13 has a peripheral wall 13a, a caulking portion 13b extending from a bottom end of the peripheral wall 13a, and an annular portion 13c extending from an outer peripheral wall of the peripheral wall 13 a; an insert 134 is protruded from the bottom of the annular portion 13c for being inserted into an insert groove 111 formed at the opposite portion of the bottom housing 11, as shown in fig. 7 and 8, so that the middle housing 13 can be rotatably positioned on the bottom housing 11; the peripheral wall 13a defines the receiving slot 132 therein, and a plurality of engaging slots 135 are recessed from the top edge for engaging and positioning a plurality of engaging blocks 52 protruding from the outer peripheral wall of the axial-moving sleeve 50, so as to limit the rotation of the axial-moving sleeve 50; the peripheral wall 13a has a plurality of grooves 136 formed in the peripheral wall thereof and extending in the axial direction to form a part of the mixed water outlet passage 105; the annular portion 13c is provided with a plurality of water through holes 131 annularly distributed adjacent to the peripheral wall 13 a; the caulking portion 13b is adapted to be nested and sealed in the bottom housing 11 to define the water inlet chamber 102.

In this embodiment, as shown in fig. 7 and 12, the overload displacement member 60 has a socket portion 62 and a resilient barb portion 61 connected to the socket portion 62; the sleeve part 62 is used for nesting and positioning the piston end 72 of the temperature sensing component 70, and the outer peripheral wall of the bottom end thereof is formed with an annular flange 621 which is used for abutting and positioning the opposite end of the buffer spring 601; the elastic barb portion 61 includes a plurality of elastic hooks 611, which can penetrate through the buckling hole 51 of the axial sleeve 50 by elastic condensation and then axially barb-retained at the buckling hole 51; the elastic hooks 611 are formed with a water passing groove 612 respectively, through which the mixed water formed by mixing the hot water and the cold water entering the mixing chamber 104 passes, and flows along the button hole 51 to the mixed water passing inlet 42 of the push switch valve 40.

In this embodiment, the pressing type thermostat 1 further includes a mounting base 1b, the mounting base 1b includes a water through base 80, an outer sleeve 90 and a valve assembly 901; the water passing base 80 has an installation chamber 81, and a cold water supply channel 82, a hot water supply channel 83, a first water outlet channel 84 and a second water outlet channel 85 respectively communicated with the installation chamber 81; the installation cavity 81 is used for installing and positioning the press-type thermostatic valve 1a, so that the cold water supply channel 82 and the hot water supply channel 83 can be respectively communicated with the cold water inlet channel and the hot water inlet channel of the press-type thermostatic valve 1a, and the first water outlet channel 84 and the second water outlet channel 85 can be respectively communicated with the mixed water outlet channel. The cold water supply passage 82 and the hot water supply passage 83 are further provided at predetermined positions with switch valve seats 821 and 831, respectively, for the valve assembly 901 to be installed and positioned, thereby controlling the cold water supply passage 82 and the hot water supply passage 83 to be switched on and off. The outer sleeve 90 can be screwed on the water through seat 80, so as to tightly lock the pressing type thermostatic valve 1a in the installation chamber 81. Accordingly, the cold water and the hot water entering the mounting seat 1b can be guided into the press-type thermostatic valve 1a to be mixed with each other in a proper proportion to form mixed water, and then the mixed water flows along the first water outlet channel 84 or the second water outlet channel 85 to the water outlet members connected with each other for water outlet, wherein the water outlet members can be common tap water outlet, hand-held shower head or head-top shower head.

As can be seen from the above description, when the cold and hot water flows into the cold water inlet channel 100 and the hot water inlet channel 101 of the push-type thermostatic valve 1a along the cold water supply channel 82 and the hot water supply channel 83 of the mounting seat 1b and then flows into the water inlet chamber 102, respectively, and then sequentially flows into the mixing chamber 104 along the valve plug 30 to be mixed with each other to form mixed water, and flows into the push-type switch valve 40 through the overload displacement member 60 and the mixed water inlet 42, the user can operate the push-type switch valve 40 by pressing to perform the switch control of the mixed water, when the push-type switch valve 40 is opened by pressing, the mixed water is allowed to flow into the mixed water outlet channel 105 from the mixed water outlet 43 along the water through holes 222 of the rotary sleeve 20, and as can be clearly seen from the figure, the mixed water outlet channel 105 of the present embodiment is designed as an annular water channel, therefore, the mixed water can flow to the first water outlet channel 84 and the second water outlet channel 85 of the water through the mixed water outlet channel 105 and then to the water outlet members connected with each other, and certainly, a user can control the on/off of the water by the switch arranged on the water outlet member, so that the water outlet member can control the water outlet, and the pressing control can be performed by the pressing switch valve 40 on the pressing thermostatic valve 1a, so that the pressing thermostatic valve has a plurality of switch protections, and the possible water leakage phenomenon caused by human negligence or member damage can be avoided.

It can be easily understood that a user can operate and change the axial position of the valve plug 30 in the inlet chamber 102 by rotating the rotary sleeve 20 properly, so as to control the mixing ratio of the cold water and the hot water flowing into the inlet chamber 102, thereby achieving the effect of temperature adjustment, and at the same time, the temperature sensing component 70 can automatically sense the extension or contraction reaction of the temperature change of the mixed water entering the mixing chamber 104, thereby quickly linking the valve plug 30 in the axial position of the inlet chamber 102, thereby achieving the constant temperature effect of adjusting the temperature of the mixed water in real time, even when the temperature of the mixed water is rapidly increased due to the reduction of the inlet amount of the cold water or the interruption of the cold water, the constant temperature effect of adjusting the temperature of the mixed water can be immediately and quickly responded, thereby blocking the hot water from entering the inlet chamber 102, and further achieving the effect of preventing scalding.

As mentioned above, when the hot water rises rapidly, the temperature sensing element 70 will automatically and rapidly make an elongation reaction, so as to avoid the collision of the related components caused by the elongation reaction, especially between the bottom end of the valve plug 30 and the opposite portion of the bottom housing seat 11, the present invention utilizes the design of the elastic hooks 611 and the fastening holes 51 of the elastic inverted hook portion 61 of the overload displacement member 60 to engage and limit after penetrating, so as to allow the elastic hooks 611 to properly move upward and disengage from the fastening holes 511, thereby achieving the effect of releasing the load to avoid the collision, and ensuring the stability of the operation of the temperature-adjusting and constant-temperature related structure.

As shown in fig. 1 to 5, the present invention provides a second embodiment of a pressing type thermostat device, the pressing type thermostat device 2 is substantially the same as the pressing type thermostat device 1 of the first embodiment, and the main differences are:

the pressing thermostat 2 of the present embodiment further includes a reverse flow member 1c installed in the installation chamber 81 at the bottom end of the pressing constant angry valve 1a to prevent the cold and hot water flowing from the cold water supply passage 82 and the hot water supply passage 83 into the cold water inlet passage 100 and the hot water inlet passage 101 from flowing back. Furthermore, the reverse-flow assembly 1c includes a body 3 and two reverse-flow valves 4; the body 3 is arranged and positioned in the mounting chamber 81 at the bottom end of the pressing type thermostatic valve 1a, two positioning plug grooves 3a are formed on the body, and the body can be respectively communicated with a cold water inlet channel 100 and a hot water inlet channel 101 through a water flow through hole 3 b; the reverse-flow valve 4 is installed and positioned in each positioning plug groove 3 a.

This creation push type constant temperature equipment 1, 2 ingeniously fuse push type ooff valve 40 coaxial arrangement in adjusting temperature and forming a push type thermostatic valve 1a in the constant temperature structure, make this push type thermostatic valve 1a not only can easily dismouting in this mount pad 1b, and have press switch concurrently, adjust temperature and constant temperature multiple functions, the structure is simplified simultaneously, easily dismouting maintenance and change, and can reduce production manufacturing cost, and holistic small in addition, help installing in narrow and small wall very much, the styling design is unrestricted with outward appearance aesthetic feeling.

The push type thermostatic valve 1a of this creation can supply to install on the mount pad that is applicable to current constant temperature equipment. Furthermore, the thermostatic valve of the existing thermostatic device with the thermostatic valve has poor thermostatic effect achieved by utilizing the internally installed pressure balance valve or pressure stabilizing valve, therefore, the existing thermostatic valve can be changed into the pressing type thermostatic device 1 only by detaching the existing thermostatic valve from the installation seat and replacing the existing thermostatic valve with the pressing type thermostatic valve 1a of the present creation, which not only can greatly improve the thermostatic effect, but also can add a new switch function, and meanwhile, the installation seat does not need to be redesigned and a new die is developed, so that the production, manufacturing and development cost can be greatly saved.

While the utility model has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various alternatives and modifications can be made therein in light of the above teachings; accordingly, all such alternatives and modifications as may be devised based on the disclosure herein are intended to be included within the spirit and scope of the present claims.

Claims (9)

1. A push type constant temperature equipment which characterized in that: the pressing type thermostatic valve comprises a valve shell, a rotary sleeve, a valve plug, a reset spring, a pressing type switch valve, a movable sleeve, an overload displacement piece, a buffer spring and a temperature sensing assembly; wherein:

the rotary sleeve is rotatably sleeved with the valve shell, the valve shell and the rotary sleeve are defined with a cold water inlet channel, a hot water inlet channel, a water inlet cavity, a spring positioning groove, a mixing cavity and a mixed water outlet channel which are communicated, and the cold water inlet channel and the hot water inlet channel are respectively provided with a cold water inlet and a hot water inlet at the communication part of the water inlet cavities;

the valve plug is provided with a piston part and a connecting part which are connected, the piston part is embedded and sealed on the inner peripheral wall of the water inlet chamber and is limited to move in an axial range so as to control the size of a water passing area of the cold water inlet and the hot water inlet communicated with the water inlet chamber, and meanwhile, the valve plug allows cold water and hot water from the cold water inlet and the hot water inlet to pass through and enter the mixing chamber;

the return spring can be accommodated and positioned in the spring positioning groove, two ends of the return spring respectively and elastically abut against the opposite parts of the valve shell and the piston part, and the valve plug is forced to axially move and reset in the direction of increasing the water passing area between the hot water inlet and the water inlet chamber according to the elastic restoring force of the return spring;

the push type switch valve is fixed on the rotary sleeve and is provided with a push part, a mixed water inlet communicated with the mixing chamber and a mixed water outlet communicated with the mixed water outlet channel, and the push part is pushed to open and close to control the mixed water inlet and the mixed water outlet to be communicated with each other;

the axial moving sleeve is embedded and sealed in the mixing chamber in a limited rotating mode and is mutually screwed with the rotating sleeve, so that the axial moving sleeve can move up and down along the axial direction along with the rotation of the rotating sleeve, and a buckling hole is formed in the axial moving sleeve;

the overload displacement part is provided with an elastic inverted hook part, can elastically penetrate through the buckling hole of the axial displacement sleeve and then is axially limited at the buckling hole by the inverted hook, and allows mixed water formed by mutually mixing cold water and hot water entering the mixing cavity to flow to the mixed water inlet through the buckling hole;

the buffer spring penetrates through the outer part of the overload displacement part, and two ends of the buffer spring respectively and elastically abut against the opposite parts of the axial displacement sleeve and the overload displacement part, so that the axial displacement sleeve can be linked with the overload displacement part to axially move through the buffer spring;

the temperature sensing assembly is provided with a metal end and a piston end, the metal end and the piston end are respectively inserted and positioned at the connecting part of the valve plug and are abutted against and positioned at the opposite part of the overload displacement piece, and the overload displacement piece can move synchronously with the temperature sensing assembly and the valve plug so that the valve plug axially moves in the direction of increasing the water passing area between the cold water inlet and the water inlet chamber.

2. The push type thermostat device of claim 1, wherein: the valve shell comprises a bottom shell seat, an upper shell sleeved on the bottom shell seat and an intermediate shell which can be clamped and positioned between the bottom shell seat and the upper shell in a rotation-limited manner; the bottom shell seat is provided with the cold water inlet channel, the hot water inlet channel, at least part of water inlet cavity, part of mixed water outlet channel and a spring positioning groove; the utility model discloses a valve plug's water inlet cavity, including middle casing bottom, end shell seat, the water inlet cavity, the outer wall of middle casing with the mixed water exhalant canal of a part is defined out jointly between the inner peripheral wall of last casing, be provided with a plurality of holes of crossing on the middle casing, be used for forming a part mixed water exhalant canal, the inside groove and the perforation of holding that is linked together that is formed with of middle casing, can borrow by hold the groove with the inside at least partial mixed cavity of jointly defining out of axle moving sleeve, and borrow by the perforation confession the position of linking of valve plug passes from this.

3. The push type thermostat device of claim 2, wherein: the rotary sleeve is provided with a seat part and a sleeve extending from the bottom end of the seat part, a mounting groove and a pipe groove which are communicated with each other are respectively formed in the rotary sleeve, the press type switch valve can be rotatably mounted in the mounting groove in a limited manner, one part of the press type switch valve is nested and sealed in the pipe groove, and the bottom end of the press type switch valve is provided with the mixed water inlet; the top end of the seat part is provided with a driving part for rotation, a shoulder part is formed on the outer peripheral wall of the seat part, and the seat part is axially limited at the top end of the upper shell; the pipe groove of the sleeve can be used for the shaft-moving sleeve to be sleeved in a sealing sliding manner and to be screwed with each other, and the pipe wall of the sleeve is provided with at least one limber hole for communicating a mixed water flux outlet of the press type switch valve and the mixed water outlet channel.

4. The push type thermostat device of claim 2, wherein: a hot water through hole is formed in the piston part of the valve plug, and hot water from the hot water inlet can enter the water inlet chamber and then flow into the mixing chamber through the through hole of the middle shell; the connecting part of the valve plug is in a sleeve shape, the top end of the valve plug is provided with a positioning hole for nesting and positioning the metal end of the temperature sensing assembly, a plurality of water passing ports are formed in the pipe wall of the valve plug, and cold water from the cold water inlet can enter the water inlet chamber and the through hole of the middle shell and then flow into the mixing chamber.

5. The push type thermostat device of claim 2, wherein: said intermediate housing having a peripheral wall, a caulked portion extending from a bottom end of said peripheral wall, and an annular portion extending from an outer peripheral wall of said peripheral wall; the bottom end of the annular part is convexly provided with an embedding block which can be embedded into an embedding groove arranged at the opposite part of the bottom shell seat, so that the middle shell can be positioned on the bottom shell seat in a limited rotation way; the peripheral wall defines the containing groove therein, and a plurality of clamping grooves are concavely arranged from the top edge, so that a plurality of clamping blocks are convexly arranged on the peripheral wall of the shaft-moving sleeve to be clamped and positioned, thereby limiting the rotation of the shaft-moving sleeve; the peripheral wall of the peripheral wall is concavely provided with a plurality of grooves extending along the axial direction and used for forming a part of the mixed water outlet channel; the annular part is provided with a plurality of water passing holes which are distributed annularly at the position adjacent to the peripheral wall; the caulking part can be nested and sealed in the bottom shell seat, so that the caulking part and the bottom shell seat mutually define the water inlet chamber.

6. The push type thermostat device of claim 1, wherein: the overload displacement piece is provided with a sleeving part and an elastic barb part connected with the sleeving part; the sleeve joint part can be used for nesting and positioning the piston end of the temperature sensing component, and an annular flange is formed on the outer peripheral wall of the bottom end of the sleeve joint part and can be used for abutting against and positioning the opposite end of the buffer spring; the elastic barb part comprises a plurality of elastic hooks which can penetrate through the buckling hole of the axial moving sleeve by elastic condensation and then be limited at the buckling hole by the axial barb; the elastic hooks are respectively provided with a water passing groove for mixed water formed by mixing cold water and hot water entering the mixing chamber to pass through and flow to a mixed water passing inlet of the press type switch valve along the buckling hole.

7. The push type thermostat device of claim 1, wherein: the water-saving valve further comprises a mounting seat, wherein the mounting seat comprises a water-through seat body, an outer sleeve and a valve assembly; the water through seat body is provided with an installation cavity, and a cold water supply channel, a hot water supply channel, a first water outlet channel and a second water outlet channel which are respectively communicated with the installation cavity; the installation cavity is used for installing and positioning the press type thermostatic valve, so that the cold water supply channel and the hot water supply channel can be respectively communicated with a cold water inlet channel and a hot water inlet channel of the press type thermostatic valve, and the first water outlet channel and the second water outlet channel are respectively communicated with the mixed water outlet channel; the cold water supply channel and the hot water supply channel are respectively provided with a switch valve seat for installing and positioning the valve assembly so as to switch and control the cold water supply channel and the hot water supply channel; the outer sleeve can be screwed on the water-passing seat body, so that the pressing type thermostatic valve is tightly locked and tightly pressed in the installation cavity.

8. The push type thermostat device of claim 7, wherein: the anti-backflow component is arranged in the installation cavity at the bottom end of the pressing constant angry valve so as to prevent cold water and hot water flowing into the cold water inlet channel and the hot water inlet channel from the cold water supply channel and the hot water supply channel from flowing back.

9. The push type thermostat device of claim 8, wherein: the reverse-flow assembly comprises a body and two reverse-flow valves; the body is arranged and positioned in an installation cavity at the bottom end of the press type thermostatic valve, two positioning plug grooves are formed on the body, and the body can be respectively communicated with a cold water inlet channel and a hot water inlet channel which are opposite through a water flow through hole; the reverse-flow valve system is arranged and positioned in each positioning plug groove.

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