FR3063327A3 - VALVE COMPRISING A DRIVE UNIT OF A CONFIGURED PLUG FOR OPENING OR BURSTING A PRESSURE RELIEF HOLE - Google Patents

Abstract

A valve comprising a valve body housing (1) having a cold water inlet, a hot water inlet and a water outlet, and a water mixing cavity ( 10) inside, a temperature control unit (2), a shutter unit (3), a water outlet channel with one end connected to the water outlet and the other end provided with a water passage surface and a drive unit (5) comprising a sliding rod (51) whose movement causes a plug (33) to open or plug a pressure relief hole.

Description

VALVE COMPRISING A TRAINING UNIT OF A CONFIGURE CAP FOR

OPEN OR BUT A PRESSURE RELIEF HOLE

TECHNICAL AREA

The present invention relates to the field of valves, and more particularly a pressure type valve adjustable temperature.

BACKGROUND

As regards the prior art pressure type valves, such as Chinese patent CN206206700U published on May 31, 2017, a pressure release hole in a temperature-adjustable pressure type switching valve is disposed in an elastic sealing film. Therefore, it is necessary to press a push rod during closing of the valve, so that a plug is at the lowest pressure point, thus closing the pressure relief hole. When opening the valve, it is necessary to return the cap to an initial position, so that the cap is separated from the pressure release hole. When closing the valve, a thrust rod pressure stroke decides whether the cap can effectively close the pressure relief hole. Therefore, it is necessary to accurately calculate the length of a sliding rod in a manufacturing process, so as to ensure that the plug on the sliding rod can accurately close the pressure release hole after the rod sliding is pressed in place. As a result, it is easy to cause a shutter defect in the case of a small size gap, the requirements in terms of production and mounting accuracy are higher, and the cost is greater. SUMMARY [0003] The present invention aims to solve the aforementioned defects or problems existing in the background and provides a valve. The valve can perform two functions, i.e., water discharge and pressure temperature control, and it is not necessary to accurately control the precise length of a slide rod in a manufacturing process.

In order to achieve the above object, the present invention provides the following technical solutions: [0005] A valve comprises a valve body housing provided with a cold water inlet, an inlet of hot water and a water outlet, and a water mixing cavity inside; a temperature control unit located inside the valve body housing and connected to the cold water inlet, the hot water inlet and the water mixing cavity, and controlling a cold water ratio / hot water entering the water mixing cavity so as to achieve temperature control by mechanical action of the temperature control unit; a shutter unit comprising a water branch body, an elastic sealing film and a plug, wherein the water branch body is sealingly connected to the valve body housing so as to form a cavity pressure-stabilizing end, one end of the pressure-stabilizing cavity is provided with a pressure release hole, and the other end of the pressure-stabilizing cavity is sealingly connected to the pressure-relief hole; elastic sealing; a hole wall of the pressure release hole is provided with a pilot hole which communicates with the water outlet so as to form a pressure release channel; the elastic sealing film is provided with a small hole which always communicates with the water mixing cavity and the pressure stabilizing cavity; the plug is disposed within the pressure stabilization cavity to open or plug the pressure release hole; a water outlet channel with one end connected to the water outlet and the other end provided with a water passage surface, wherein the water passage surface is provided with a through hole water communicating with the water outlet, and the outer edge of the water passage surface communicates with the water mixing cavity; the elastic sealing film bears against the water-passing surface when a water pressure of the pressure-stabilizing cavity is in equilibrium with that of the water-mixing cavity; the elastic sealing film is separated from the water-passing surface when the water pressure of the pressure-stabilizing cavity is smaller than that of the water-mixing cavity; a drive unit comprising a sliding rod, wherein the sliding rod extends into the pressure-stabilizing cavity through the pressure release hole, releasably and releasably connected to the cap, and sealingly connected to the outer end surface of the pressure release hole, and a gap is formed between the sliding rod and a hole wall of the pressure release hole; the axial movement of the sliding rod causes the plug to open or plug the pressure release hole.

Preferably, the temperature control unit further comprises a fixed plate, a movable plate and a valve seat connected coaxially in sequence; the fixed plate is fixedly connected to the valve body housing and provided with a fixed plate central hole, a cold water inlet channel and a hot water inlet channel, which the fixed plate central hole communicates with the water outlet, the cold water inlet channel is connected to the cold water inlet and the water mixing cavity, and the inlet channel hot water is connected to the hot water inlet and the water mixing cavity; the movable plate is rotatably connected to the fixed plate and fixedly connected to the valve seat in a sealed manner, wherein the movable plate is provided with a movable plate central hole and a protective portion to change communication areas between the cold water inlet channel and the water mixing cavity and between the hot water inlet channel and the water mixing cavity; the valve seat is coaxially connected to the water bypass body non-rotatably, and the water passage surface is formed at one end of the valve seat proximate the water bypass body; the valve seat is provided with a central valve seat hole which intersects the water passage surface so as to form the water passage hole; the fixed plate central hole, the movable plate central hole and the valve seat central hole communicate in sequence to form the water outlet channel; the water bypass body extends outside the valve body housing along an axis; the water diversion body is rotated and, in turn, drives the valve seat and the movable plate to coaxially rotate relative to the fixed plate to change the communication areas between the inlet channel of cold water and the water mixing cavity as well as between the hot water inlet channel and the water mixing cavity, thus controlling a ratio of cold water to hot water entering the mixing cavity. 'water.

Preferably, the drive unit further comprises a sleeve, a push rod, a rotatable base and a first return spring connected coaxially; the sleeve is fixedly connected to the valve body housing or the water branch body, and spaced apart ratchets are formed on an inner wall of the sleeve, a hooking portion is formed on the ratchets and the gap between the ratchets forms an insertion part; the push rod is slidably connected to the sleeve in a non-rotational manner, one end of the push rod extends outside the sleeve, the other end of the push rod is provided with a base hole rotating, successively arranged oblique teeth are formed on a hole wall of the rotatable base hole, and the direction of the oblique teeth is identical to that of the ratchets; the rotatable base is rotatably connected to the push rod, one end of the rotatable base extends into the rotatable base hole, and the other end of the rotatable base is provided with a sliding stem bore so that receiving and driving the slide rod to move under the action of the rotating base; the rotating base is further provided with insertion teeth which are arranged at intervals, and the insertion teeth face the ratchets and the oblique teeth; the first return spring is sleeved on the sliding rod so as to allow the insertion teeth to bounce towards a stop position when the push rod is not biased, an end of the first return spring bears against the rotating base, and the other end of the first return spring bears against the water diversion body; the rotary base driven by the push rod moves axially and rotates at the same time under the action of the oblique teeth, so that the stop position of the insertion teeth is switched between the engaging portion and the portion of the insertion when the insertion teeth bounce; when the insertion teeth are stopped at the attachment portion, the plug opens the pressure release hole; when the insertion teeth are stopped at the insertion portion, the plug closes the pressure release hole.

[0008] Preferably, the shutter unit further comprises a support and a second return spring; the elastic sealing film comprises a sealing portion, a fixing portion and an elastic portion which are integrally connected in sequence; the sealing part bears against or is separated from the water-passing surface under the elastic action of the elastic part, and the small hole is formed in the sealing part; the attachment portion is formed between the water bypass body and the valve seat; the support is intended to support the elastic sealing film; a surface of the sealing portion towards the pressure-stabilizing cavity is fixed to the support; the second return spring is disposed in the pressure-stabilizing cavity with two ends thereof respectively bearing against the inner wall of the pressure-stabilizing cavity and the support.

Preferably, a first water passage channel communicating with the pilot hole is disposed in a side wall of the water diversion body; a second water channel communicating with the central valve seat hole is disposed in a side wall of the valve seat; the fixing portion is provided with a through hole; the first water channel, the through hole and the second water channel communicate to form the pressure relief channel.

Preferably, the water diversion body and the valve seat are connected coaxially non-rotatively by means of a clamping.

[0011] Preferably, the valve seat is provided with a positioning column towards the movable plate; the movable plate is provided with a positioning hole corresponding to the positioning column; the valve seat is fixedly connected to the movable plate by inserting the positioning column into the positioning hole.

As shown in the description above, the present invention has the following advantageous effects compared to the prior art.

1. In the present technical solution, the movement process that the sliding rod causes a plug so as to close a pressure release hole is in a range of a rebound stroke of the sliding rod. Thus, it can be concluded that the slide rod can be driven to bounce and the plug can effectively close the pressure release hole as long as the first return spring is in the effective elastic deformation range. Therefore, it is not necessary to accurately control the precise length of the sliding rod and to strictly control the fitting accuracy during the valve manufacturing process, so that the cost of production is lower, and the efficiency is greater.

2. The communication zones between a cold water inlet channel and a water mixing cavity and between a hot water inlet channel and the water mixing cavity are changed. by rotating a valve seat and a movable plate relative to a fixed plate and a valve body housing to perform a function of adjusting the temperature of the water discharged from the valve, and the structure is simple and easy to achieve.

3. A drive unit adopting a pen type pressure structure is simple in terms of structure and operates reliably; the valve can be opened just by pressing a push rod; therefore, the operation is practical.

4. A surface of a sealing portion of an elastic sealing film to a pressure-stabilizing cavity is provided with a support to support the elastic sealing film, so that the co-ordination between the sealing portion and the water passage surface is more effective, the elastic sealing film is unlikely to deform, and the sealing effect is better.

5. A first water passage channel and a second water passage channel are disposed on a wall of a water bypass body and the valve seat respectively, and communicate via a through hole in an attachment portion for forming a pressure release channel; the water path structure is concise in design and takes up less space.

6. The water bypass body and the valve seat are connected coaxially non-rotatively by means of a clamping. Therefore, the structure is simple, disassembly and assembly are convenient, and the non-rotating link structure is stable and reliable.

7. A movable plate and the valve seat are fixedly connected non-rotatively through the coordination of the positioning column and the positioning hole. Therefore, the structure is simple, the binding action is reliable, and the editing and editing are convenient.

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To describe the technical solutions in the modes of more clearly, the drawings used in the embodiments will be briefly presented as follows. It is obvious to those skilled in the art that the drawings described below are only some embodiments of the invention, and that other drawings may also be obtained in accordance with these drawings without paying for creative work.

Figure 1 is a schematic stereoscopic structural schematic diagram according to an embodiment of the invention; Figure 2 is a first structural block diagram of a valve where a pressure relief hole is in a closed state in one embodiment of the invention; Figure 3 is a second structural schematic diagram of the valve structure where the pressure release hole is in a closed state in one embodiment of the invention; Figure 4 is a first structural block diagram of the valve where the pressure relief hole is in an open state in one embodiment of the invention; Figure 5 is a second structural block diagram of the valve where the pressure relief hole is in an open state in one embodiment of the invention; Figure 6 is a first structural schematic diagram in which a movable plate and a fixed plate are in a corresponding state in one embodiment of the invention; Figure 7 is a second structural schematic diagram in which the movable plate and the fixed plate are in a corresponding state in one embodiment of the invention; Figure 8 is a third structural schematic diagram in which the movable plate and the fixed plate are in a corresponding state in one embodiment of the present invention; Fig. 9 is a structural block diagram of an elastic sealing film in one embodiment of the present invention; Figure 10 is a structural schematic diagram of a sleeve, a push rod and a rotational base in an embodiment of the present invention.

The main reference numbers are indicated as follows.

A valve body housing 1 comprises a water mixing cavity 10, a cold water inlet 11, a hot water inlet 12 and a water outlet 13; A temperature control unit 2 comprises a fixed plate 21, a movable plate 22 and a valve base 23, in which the fixed plate 21 comprises a fixed plate central hole 211, a water inlet channel cold 212 and a hot water inlet channel 213; the movable plate 22 comprises a movable plate central hole 221, a protective portion 222 and a positioning hole 223; the valve base 23 comprises a central valve seat hole 231, a second water passage channel 232, a clamping groove 233, a projection 234 and a positioning column 235; A shutter unit 3 comprises a water branch body 31, an elastic sealing film 32, a plug 33, a support 34 and a second return spring 35, in which the branch body of water 31 comprises a pressure stabilizing cavity 310, a pressure relief hole 311, a pilot hole 312, a first water passage channel 313, a clamping block 314 and an insertion groove 315; the elastic sealing film 32 comprises a small hole 321, a sealing portion 322, a fixing portion 323 and an elastic portion 324; A water outlet channel 4 comprises a water passage hole 41; A drive unit 5 comprises a sliding rod 51, a sleeve 52, a push rod 53, a rotary base 54 and a first return spring 55, in which the sleeve 52 comprises ratchets 521, a portion of hook 522 and an insertion portion 523; the push rod 53 comprises a rotary base hole 531 and oblique teeth 532; the rotating base 54 includes a sliding stem hole 541 and insertion teeth 542.

DETAILED DESCRIPTION

The technical solution in the embodiments of the present invention will be described in detail with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the embodiments described are preferred embodiments of the present invention and should not be considered as an exclusion to other embodiments. On the basis of the embodiments of the present invention, all other embodiments made by those skilled in the art without paying for creative work should be within the scope of the present invention.

The terms "first", "second" or "third", etc., in the claims, the description and the appended drawings of the present invention are intended to distinguish different objects and not to describe a particular order.

Terms such as "include", "understand" and their modifications in the claims, the description and the accompanying drawings of the present invention are intended to "include, but not limited to".

[0040] With reference to Figures 1 to 5, the structural schematic of the valve of the present invention is illustrated. In one embodiment of the present invention, the valve comprises a valve body housing 1, a temperature control unit 2, a shutter unit 3, a water outlet channel 4 and a drive unit. 5.

The valve body housing 1 is provided with a cold water inlet 11, a hot water inlet 12 and a water outlet 13, and is also provided with a hollow cavity. water mixture 10 inside.

The cold water inlet 11 is intended to introduce cold water for the valve. The hot water inlet 12 is intended to introduce hot water for the valve. Cold water and hot water enter the water mixing cavity 10 and are mixed therein to form a mixed water. The water outlet 13 is intended to evacuate the mixed water.

The temperature control unit 2 is disposed inside the valve body housing 1 and is connected to the cold water inlet 11, the hot water inlet 12 and the mixing cavity 10. By means of a mechanical action of the temperature control unit 2, a cold water / hot water ratio entering the water mixing cavity 10 is controlled so as to effect a temperature adjustment.

The temperature control unit 2 comprises a fixed plate 21, a movable plate 22 and a valve seat 23 which are connected coaxially in sequence.

The fixed plate 21 is fixedly connected to the valve body housing 1 and provided with a fixed plate central hole 211, a cold water inlet channel 212 and a channel hot water inlet 213. The fixed plate central hole 211 communicates with the water outlet 13. The cold water inlet channel 212 connects the cold water inlet 11 to the water mixing cavity 10. The hot water inlet channel 213 connects the hot water inlet 12 to the water mixing cavity 10.

The movable plate 22 is coaxially and rotatably connected to the fixed plate 21 and fixedly connected to the valve seat 23 in a sealed manner. As shown in Figures 6 to 8, the movable plate 22 is provided with a movable plate central hole 221, a protective portion 222, and a positioning hole 223 (shown in Figure 1).

The central hole of movable plate 221 is intended to communicate with the fixed plate central hole 211. The protective part 222 is intended to change the communication zones between the cold water inlet channel 212 and the cavity as well as between the hot water inlet channel 213 and the water mixing cavity 10. The positioning hole 223 is intended to be coordinated with the valve seat 23 so as to form a non-rotating link positioned.

Figures 6 to 8 illustrate a structural block diagram of a relative rotation process of the movable plate 22 and the fixed plate 21. As shown in Figure 6, when the movable plate 22 rotates at a certain angle. the guard portion 222 on the movable plate 22 completely shields the cold water inlet channel 212 on the fixed plate 21, and the hot water inlet channel 213 is fully open; the hot water flowing from the hot water inlet 12 at this time enters the water mixing cavity 10, and the hot water can flow outwardly from the water outlet 13 if the valve is open. As shown in Figure 7, when the movable plate 22 rotates until the protective portion 222 thereon partially protects the cold water inlet channel 212 and the water inlet channel hot 213 respectively, the cold water inlet channel 212 and the hot water inlet channel 213 are partially open; the cold water flowing from the cold water inlet 11 and the hot water flowing from the hot water inlet 12 at this point flows into the water mixing cavity 10 at the same time time and are mixed inside thereof so as to form a mixed water. If the valve is open, the mixed water can flow outward from the water outlet 13; a ratio of cold water to hot water flowing in the water mixing cavity 10 can be adjusted by adjusting the protection zones of the cold water inlet channel 212 and the hot water inlet channel 213, thus regulating the temperature of the water. As shown in Figure 8, the movable plate 22 rotates until the protective portion 222 thereon completely protects the hot water inlet channel 213 on the fixed plate 21, and the cold water inlet 212 is completely open; the cold water flowing from the inlet of cold water 11 at this moment enters the water mixing cavity 10, and if the valve is open, the cold water can flow outwards from the water outlet 13.

The valve seat 23 is rotatably disposed within the valve body housing 1 so as to drive the movable plate 22 in rotation relative to the fixed plate 21, and is provided with a central hole valve seat 231, a second water passage channel 232, a clamping groove 233, a projection 234 and a positioning column 235.

The fixed plate central hole 211, the movable plate central hole 221 and the valve seat central hole 231 communicate in sequence so as to form a water outlet channel. The second water passage channel 232 is disposed in a side wall of the valve seat 23 and communicates with the valve seat central hole 231. The clamping groove 233 is disposed on a wall of the valve seat 23. One end the valve seat 23 extends along a direction parallel to an axis so as to form the projection 234. The positioning column 235 on the valve seat 23 faces the movable plate 22 so as to be coordinated with the positioning hole 223 inserted so that the movable plate 22 and the valve seat 23 are fixedly non-rotatably connected to one another.

In the present embodiment, the mechanical action of the temperature control unit 2 specifically refers to the fact that the valve seat 23 is rotated to drive the movable plate 22 in rotation with respect to the fixed plate 21, thereby realizing the temperature control objective by adjusting the ratio of the cold water flowing to the water mixing cavity 10 from the cold water inlet channel 212 and the hot water flowing to the water mixing cavity 10 from the hot water inlet channel 213.

The shutter unit 3 is intended to open and close the water outlet channel 4 and comprises a water diversion body 31, an elastic sealing film 32, a plug 33, a support 34 and a second return spring 35.

The water bypass body 31 is connected to the valve body housing 1 in a sealed manner, and is coaxially connected to the valve seat 23 in a non-rotating manner. The water diversion body 31 is provided thereon with a pressure-stabilizing cavity 310, a pressure release hole 311, a pilot hole 312, a first passage channel water 313, a clamping block 314 and an insertion groove 315.

The pressure stabilizing cavity 310 is disposed in the water bypass body 31. The water bypass body 31 is provided with the pressure release hole 311 at one end of the pressure stabilizing cavity 310 and the other end of the pressure stabilizing cavity 310 is connected to the elastic sealing film 32 in a sealed manner. A hole wall of the pressure relief hole 311 in the water branch body 31 is provided with the pilot hole 312 which communicates with the water outlet 13 so as to form a pressure release channel. The first water passage channel 313 is disposed in a side wall of the water diversion body 31.

The clamping block 314 is disposed on an outer wall of the pressure stabilizing cavity 310 on the water bypass body 31, and is clamped within the clamping groove 233 on the valve seat. 23. The insertion groove 315 is disposed on an outer wall of the water branch body 31 so as to be coordinated with the projection 234 in an inserted manner when the clamping block 314 and the clamping groove 233 are clamped in place. thereby realizing the non-rotating connection between the water diversion body 31 and the valve seat 23.

The water branch body 31 extends outside the valve body housing 1 along the axis. The rotation of the water bypass body 31 drives the valve seat 23 and the movable plate 22 to rotate coaxially with the fixed plate 21, thus changing the communication zones between the cold water inlet channel. 212 and the water mixing cavity 10 as well as between the hot water inlet channel 213 and the water mixing cavity 10 and thus achieving the objective of controlling the ratio of cold water to hot water in the water mixing cavity 10.

The elastic sealing film 32 is intended to open or close the water outlet channel 4. As shown in FIG. 9, the elastic sealing film 32 comprises a sealing part 322, a part of 323 and an elastic portion 324. The sealing portion 322, the resilient portion 324 and the attachment portion 323 are integrally connected in sequence. The sealing portion 322 is provided with a small hole 321 which always communicates with the water mixing cavity 10 and the pressure stabilizing cavity 310. The fixing portion 323 is formed between the water bypass body 31 and the valve seat 23, and is provided with a through hole thereon. The first water passage channel 313, the through hole and the second water passage channel 232 communicate in sequence to form a pressure release channel.

The plug 33 is disposed in the pressure-stabilizing cavity 310 in order to open or close the pressure release hole 311.

One end of the sealing portion 322 towards the pressure-stabilizing cavity 310 is fixed to the support 34. The support 34 is intended to support the elastic sealing film 32 so as to prevent the sealing portion 322 to deform. In the present embodiment, the support 34 is provided with a sealing film connecting portion provided with an annular limiting groove. The shutter portion 322 is provided with a nesting hole. The sealing portion 322 is sealingly engaged within the limiting groove through the interlocking hole so as to prevent the elastic sealing film 32 from being separated from the support 34, in which the support 34 is composed of a hard material, and the elastic sealing film 32 is made of a flexible material. Therefore, the support 34 can still rest against the sealing portion 322 of the elastic sealing film 32 so as to prevent the sealing portion 322 from being deformed.

The second return spring 35 is disposed inside the pressure-stabilizing cavity 310, and two ends of the second return spring 35 rest against an inner wall of the pressure-stabilizing cavity 310 and the support 34 respectively.

One end of the water outlet channel 4 is connected to the water outlet 13, and the other end of the water outlet channel 4 is provided with a water passage surface which is provided with of a water passage hole 41. The outer edge of the water passage surface communicates with the water mixing cavity 10. The water passage hole 41 communicates with the water outlet 13 via 4. In the present embodiment, the water passage surface is formed at one end of the valve seat 23 near the water branch body 31. A central hole of valve seat 231 crosses the water passage surface so as to form the water passage hole 41.

In the present embodiment, the sealing portion 322 of the elastic sealing film 32 bears against or is separated from the water-passing surface under the elastic action of the elastic portion 324 so as to closing or opening the water passage hole 41.

The drive unit 5 comprises a sliding rod 51, a sleeve 52, a push rod 53, a rotary base 54 and a first return spring 55.

The sliding rod 51 extends into the pressure-stabilizing cavity 310 through the pressure release hole 311, and is removably and fixedly connected to the plug 33. The sliding rod 51 is sealingly connected to the outer end surface of the pressure release hole 311, and a gap is formed between the slide rod 51 and a hole wall of the pressure release hole 311. The axial movement of the slide rod 51 causes the plug 33 to to open or close the pressure release hole 311.

The sleeve 52 is fixedly connected to the valve body housing 1 or the water bypass body 31. As shown in Figure 10, ratchets 521 arranged at intervals are formed on an inner wall of the sleeve 52. a hooking portion 522 is formed on the ratchets 521 and the gap between the ratchets 521 forms an insertion portion 523.

The push rod 53 is slidably connected to the sleeve 52 in a non-rotating manner. One end of the push rod 53 extends outside the sleeve 52, while the other end of the push rod 53 is provided with a rotatable base hole 531. Oblique teeth 532 arranged successively are formed on a hole wall of the rotary base hole 531, and the direction of the oblique teeth 532 is identical to that of the ratchets 521.

The rotatable base 54 is rotatably connected to the push rod 53, one end of the rotatable base 54 extends into the rotatable base hole 531, and the other end of the rotatable base 54 is provided with a sliding rod hole 541 for receiving and driving the sliding rod 51 to move under the action of the rotating base 54. The rotating base 54 is further provided with insertion teeth 542 arranged at intervals, and the insertion teeth 542 face the ratchets 521 and the oblique teeth 532.

The first return spring 55 is sleeved on the sliding rod 51, one end of the first return spring 55 bears against the rotary base 54, and the other end of the first return spring 55 bears against the water diversion body 31. The first return spring 55 is intended to allow the insertion teeth 542 to bounce to a stop position when the push rod 53 is not biased.

The rotary base 54 driven by the push rod 53 moves axially, and rotates at the same time under the action of the oblique teeth 532, so that the insertion teeth 542 bounce under the action of the first spring of recall 55, and the stop position of the insertion teeth 542 is switched between the engaging portion 522 and the insertion portion 523. When the insertion teeth 542 are stopped at the engaging portion 522 the plug 33 opens the pressure relief hole 311. When the insertion teeth 542 are stopped at the insertion portion 523, the plug 33 closes the pressure release hole 311.

Figures 2 and 3 show a block diagram where the valve in the present embodiment is in a closed state. As shown in Figures 2 and 3, the push rod 53 of the drive unit 5 is in an unpressed state, and the insertion teeth 542 are stopped at the insertion portion 523. moment, the rotary base 54 and the sliding rod 51 are at the highest position under the action of the first return spring 55, and the plug 33 closes the pressure release hole 311, so that the pressure water within the pressure stabilizing cavity 310 and the water pressure within the water mixing cavity 10 maintain a balanced state. Since a compression zone of the elastic sealing film 32 on one side in the pressure-stabilizing cavity 310 is greater than that on the other side in the mixed cavity 10, the elastic sealing film 32 is presses against the water passage surface, thereby closing the water passage hole 41. Therefore, water within the water mixing cavity 10 can not flow outwardly from the water outlet channel 4, and the closed state of the valve is made accordingly.

Figures 4 and 5 show a schematic diagram in which the valve in the present embodiment is in an open state. As shown in Figures 4 and 5, the push rod 53 of the drive unit 5 is at the lowest point after being pressed, and the insertion teeth 542 at this time are stopped at the part 522. The rotary base 54 and the sliding rod 51 are located at the lowest position, and the plug 33 driven by the sliding rod 51 is separated from the pressure release hole 311, so that the water within the pressure stabilizing cavity 310 flows through the pilot hole 312, the first water passage channel 313, the through hole in the attachment portion 323, the second passage channel water 232 and in the central valve seat hole 231 under the action of the water pressure, thus flowing outside the water outlet channel 4 and in the water outlet 13. Because the rate of discharge of water within the pressure stabilizing cavity 310 is faster than the velocity of the water flowing in the pressure-stabilizing cavity 310 from the water mixing cavity 10 through the small hole 321, the water pressure inside the pressure-stabilizing cavity 310 decreases and is less than the water pressure inside the water mixing cavity 10. Therefore, one side of the elastic sealing film 32 in the water mixing cavity 10 is deformed under the effect of water pressure. The sealing portion 322 is separated from the water passage hole 41, and the water within the water mixing cavity 10 at this time flows through the central valve seat hole 231. , the movable plate central hole 221 and the fixed plate central hole 211 in sequence, and flows out of the valve body housing 1, thus achieving an open state of the valve.

As shown in the above embodiment, in the technical solution of the present invention, the movement process causing the sliding rod 51 to cause a plug 33 to close a pressure relief hole 311 is within a range of the rebound stroke of the slide rod 51. It can be concluded that the slide rod 51 can be driven to bounce and the plug 33 can effectively close the pressure release hole 311 as the first return spring 55 is in an effective range of elastic deformation. Therefore, it is not necessary to strictly control the precise length of the sliding rod 51 and the fitting accuracy during the valve manufacturing process, the cost of production is lower, and the efficiency is greater .

By the rotation of the valve seat 23 and the movable plate 22 relative to the fixed plate 21 and the valve body housing 1, the communication zones between the cold water inlet channel 212 and the water mixing cavity 10 as well as between the hot water inlet channel 213 and the water mixing cavity 10 are changed in order to perform a function of adjusting the temperature of the water flowing to the outside from the valve, and therefore the structure is simple and easy to achieve. In the embodiment of the present invention, the valve seat 23 and the water branch body 31 are coaxially connected non-rotatably. Therefore, the valve seat 23 and the movable plate 22 can be rotated relative to the fixed plate 21 just by controlling the portion, which extends outside the valve body housing 1, of the body of the bypassing water 31 to turn, thereby achieving the adjustment of the water temperature. Thus, the structure is simple, and the operation is practical.

The drive unit adopting a pen type pressure structure is simple in terms of structure and operates reliably. The valve can be opened just by pressing the push rod 53, therefore the operation is convenient.

A surface of the sealing portion 322 of the elastic sealing film 32 towards the pressure-stabilizing cavity 310 is provided with a support 34 to support the elastic sealing film 32, so that the portion shutter 322 is coordinated with the water passage surface more effectively, the elastic sealing film 32 is unlikely to deform, and the sealing effect is better.

The first water passage channel 313 and the second water passage channel 232 are disposed on a wall of the water diversion body 31 and the valve seat 23 respectively, and communicate via a through hole in the fixing portion 323 so as to form a pressure release channel. The water path structure is concise in design and takes up less space.

The water branch body 31 and the valve seat 23 are connected coaxially non-rotatively by means of a clamping. Therefore, the structure is simple, disassembly and assembly are convenient, and the non-rotating link structure is stable and reliable.

The movable plate 22 and the valve seat 23 are fixedly non-rotatably connected by a coordination between the positioning column 235 and the positioning hole 223. Therefore, the structure is simple, the binding action is reliable, and assembly and revision are practical.

On the basis of the above analysis, the technical solution described in the present invention solves all the technical problems listed in the description and realizes the corresponding technical effects.

The description of the above specification and embodiments is intended to explain the scope of protection of the present invention, but does not constitute a limitation thereto. Through the teachings of the present invention or the embodiments above, the modifications, equivalent substitutions or other improvements made to the embodiments or a portion of the technical features thereof by one skilled in the art on the the basis of common knowledge, general technical knowledge and / or prior art and logical analysis, reasoning or finite testing must be included within the scope of protection of the present invention.

Claims (7)

Valve, comprising a valve body housing (1) provided with a cold water inlet (11), a hot water inlet (12) and a water outlet (13), and a water mixing cavity (10) therein; a temperature setting unit (2) located inside the valve body housing (1) and connected to the cold water inlet (11), the hot water inlet (12) and the cavity mixing water (10), and controlling a cold water / hot water ratio entering the water mixing cavity (10) so as to achieve a temperature control by means of a mechanical action of the water unit (10). temperature setting (2); a shutter unit (3) comprising a water branch body (31), an elastic sealing film (32) and a plug (33), in which the water branch body (31) is connected sealingly to the valve body housing (1) to form a pressure-stabilizing cavity (310) therein, one end of the pressure-stabilizing cavity (310) is provided with a release hole pressure (311), and the other end of the pressure-stabilizing cavity (310) is sealingly connected to the elastic sealing film (32); a hole wall of the pressure release hole (311) is provided with a pilot hole (321) which communicates with the water outlet (13) to form a pressure release channel; the resilient sealing film (32) is provided with a small hole which always communicates with the water mixing cavity (10) and the pressure stabilizing cavity (310); the plug (33) is disposed within the pressure stabilizing cavity (310) to open or plug the pressure release hole (311); a water outlet channel (4) with one end connected to the water outlet (13) and the other end provided with a water passage surface, in which the water passage surface is provided a water passage hole (41) communicating with the water outlet (13), and the outer edge of the water passage surface communicates with the water mixing cavity (10); the elastic sealing film (32) bears against the water-passing surface when a water pressure of the pressure-stabilizing cavity (310) is in equilibrium with that of the water-mixing cavity (10); the elastic sealing film (32) is separated from the water-passing surface when the water pressure of the pressure-stabilizing cavity (310) is lower than that of the water-mixing cavity (10) ; a drive unit (5) comprising a sliding rod (51), in which the sliding rod (51) extends into the pressure-stabilizing cavity (310) through the pressure release hole (311), connected to the plug (33) releasably and fixedly, and sealingly connected to the outer end surface of the pressure release hole (311), and a gap is formed between the slide rod (51) and a hole wall the pressure release hole (311); the axial movement of the sliding rod (51) drives the plug (33) to open or plug the pressure release hole (311). The valve of claim 1, wherein the temperature control unit (2) further comprises a fixed plate (21), a movable plate (22) and a valve seat (23) coaxially connected in sequence; the fixed plate (21) is fixedly connected to the valve body housing (1) and provided with a fixed plate central hole (211), a cold water inlet channel (212) and a a hot water inlet channel (213), in which the fixed plate central hole (211) communicates with the water outlet (13), the cold water inlet channel (212) is connected at the cold water inlet (11) and the water mixing cavity (10), and the hot water inlet channel (213) is connected to the hot water inlet (12) and the water mixing cavity (10); the movable plate (22) is rotatably connected to the fixed plate (21) and fixedly connected to the valve seat (23) in a sealed manner, wherein the movable plate (22) is provided with a central hole of movable plate (221) and a shield portion (222) for changing communication areas between the cold water inlet channel (212) and the water mixing cavity (10) as well as between the hot water inlet channel (213) and the water mixing cavity (10); the valve seat (23) is coaxially connected to the water diversion body (31) in a non-rotating manner, and the water passage surface is formed at one end of the valve seat (23) close to the water diversion body (31); the valve seat (23) is provided with a central valve seat hole (231) which intersects the water passage surface so as to form the water passage hole (41); the fixed plate central hole (211), the movable plate central hole (221) and the valve seat central hole (231) communicate in sequence to form the water outlet channel (4); the water branch body (31) extends outside the valve body housing (1) along an axis; the water diversion body (31) is rotated and, in turn, drives the valve seat (23) and the movable plate (22) to rotate coaxially with the stationary plate (21) to to change the communication areas between the cold water inlet channel (212) and the water mixing cavity (10) and between the hot water inlet channel (213) and the mixing water (10), thereby controlling a ratio of cold water to hot water entering the water mixing cavity (10). Valve according to claim 1, wherein the drive unit (5) further comprises a sleeve (52), a push rod (53), a rotatable base (54) and a first return spring (55). ) coaxially connected; the sleeve (52) is fixedly connected to the valve body housing (1) or the water branch body (31), and spaced apart ratchets (521) are formed on an inner wall of the sleeve (52). ), a hooking portion (521) is formed on the ratchets (521) and the gap between the ratchets (521) forms an insertion portion (523); the push rod (53) is slidably connected to the sleeve (52) in a non-rotatable manner, one end of the push rod (53) extends outside the sleeve (52), the other end of the push rod (53) is provided with a rotatable base hole (531), successively arranged oblique teeth (532) are formed on a hole wall of the rotatable base hole (531), and the direction of the oblique teeth (532) is identical to that of the ratchets (521); the rotatable base (54) is rotatably connected to the push rod (53), one end of the rotatable base (54) extends into the rotatable base hole (531), and the other end of the base rotary apparatus (54) is provided with a sliding pin hole (541) for receiving and driving the slide rod (51) to move under the action of the rotatable base (54); the rotatable base (54) is further provided with insertion teeth (542) which are arranged at intervals, and the insertion teeth (542) face the ratchets (521) and the oblique teeth (532); the first return spring (55) is sleeved on the slide rod (51) to allow the insertion teeth (542) to bounce to a stop position when the push rod (53) is not biased, one end of the first return spring (55) bears against the rotatable base (54), and the other end of the first return spring (55) bears against the water diversion body (31); the rotary base (54) driven by the push rod (53) moves axially and rotates at the same time under the action of the oblique teeth (532), so that the stop position of the insertion teeth (542) is switched between the engaging portion (522) and the insertion portion (523) when the insertion teeth (542) bounce; when the insertion teeth (542) are stopped at the engaging portion (522), the plug (33) opens the pressure release hole (311); when the insertion teeth (542) are stopped at the insertion portion (523), the plug (33) closes the pressure release hole (311). 4. Valve according to claim 2, wherein the shutter unit (3) further comprises a support (34) and a second return spring (35); the elastic sealing film (32) comprises a sealing portion (322), a fixing portion (323) and an elastic portion (324) which are integrally connected in sequence; the sealing portion (322) bears against or is separated from the water passage surface under the elastic action of the elastic portion (324), and the small hole (321) is formed in the portion of filling (322); the attachment portion (323) is formed between the water branch body (31) and the valve seat (23); the carrier (34) is for supporting the elastic sealing film (32); a surface of the sealing portion (322) toward the pressure-stabilizing cavity (310) is fixed to the support (34); the second return spring (35) is disposed in the pressure-stabilizing cavity (310) with two ends thereof respectively bearing against the inner wall of the pressure-stabilizing cavity (310) and the support (34). ). The valve of claim 4, wherein a first water passage channel (313) communicating with the pilot hole (321) is disposed in a side wall of the water diversion body (31); a second water passage channel (232) communicating with the central valve seat hole (231) is disposed in a side wall of the valve seat (23); the fixing portion (323) is provided with a through hole; the first water passage channel (313), the through hole and the second water passage channel (232) communicate to form the pressure release channel. 6. Valve according to claim 2, wherein the water diversion body (31) and the valve seat (23) are coaxially non-rotatably connected by means of a clamping. Valve according to claim 2, wherein the valve seat (23) is provided with a positioning column (235) towards the movable plate (22); the movable plate (22) is provided with a positioning hole (223) corresponding to the positioning column (235); the valve seat (23) is fixedly connected to the movable plate (22) by inserting the positioning column (223) in the positioning hole (223).