CN205350447U - Dark dress control valve of accessible use - Google Patents

Abstract

The utility model relates to a dark dress control valve of accessible use, including secretly adorn the box body, secretly adorn the body, control the thermo valve of formula soon, the thermo valve installs that this is internal in dark dress, intaking between water route and the play water water route of dark dress body is located to the thermo valve, secretly adorns the body and install in dark dress box body, thermo valve and intake and be equipped with the ooff valve of push type between the water route, the tip of ooff valve are equipped with rotatory hand wheel, the subassembly linkage that adjusts the temperature of rotatory hand wheel and thermo valve, press once rotatory hand wheel, the ooff valve is closed, and the thermo valve ends with the water route that intakes, and rotatory hand wheel is not higher than the panel of dark dress box body, press rotatory hand wheel once more, the ooff valve is opened, and the thermo valve communicates with each other with the water route that intakes, and rotatory hand wheel extends the panel of dark dress box body. The utility model discloses can carry out accessible operation, possess and prevent scalding the anti cold function to and the secondary opens and prevents scalding the function, surmounts the suggestion and not only prevent scalding, also anti cold - - - stop the hand wheel by unexpected area such as clothing, bath towel then the possibility of the low temperature of fast speed adjusting.

Description

A barrier-free concealed control valve

technical field

The utility model relates to a water outlet control valve in the sanitary ware field, in particular to a concealed control valve for barrier-free use.

Background technique

The mechanical button faucets in the prior art ignore the experience of users who are inconvenient to use their fingers. When the fingers are inconvenient to use, it will be difficult to switch the button faucet.

The operating handles of the concealed thermostatic faucet in the prior art are all protruding from the wall, forming a protruding shape, occupying space, and forming an obstacle. Moreover, it cannot be avoided that it is turned off when the water is adjusted to the highest temperature, causing the risk of scalding when the user opens it next time. Chinese utility model patent application 201210459620.2 discloses a concealed thermostatic faucet with no gap installation combined with an anti-scald protection button structure, including a thermostatic faucet body, a mounting bracket group, a decorative panel, a valve core adjustment rod, a handle seat and a handle; it also includes a Temperature control device, this temperature control device includes a temperature positioning block located in the handle seat and has two sections of arc-shaped grooves with different radii, the arc of the large-diameter arc-shaped groove is the water outlet control area, and the small-diameter arc-shaped groove is the temperature control area; this button The set includes a button, a return spring and a gear lever. One end of the gear lever is connected to the side wall of the button, and the other end is placed in the arc-shaped groove of the temperature positioning block. One end of the return spring is against the handle, and the other end is against the button. Through the cooperation of the button group and the different gear positions of the temperature positioning block, the control handle can selectively control the rotation range of the thermostatic valve core of the faucet, so as to realize the functions of normal constant temperature water outlet and selected temperature adjustment water outlet; at the same time, the distance between the handle seat and the decorative panel can be adjusted. Consistency ensures the integrity of the appearance of this concealed faucet.

But the deficiency that above-mentioned utility model exists is that handle and handle seat are all protrudingly arranged on the body of wall all the time, occupy certain space; If the gear is turned on, it is very likely to cause burns.

Most of the thermostatic faucets in the prior art have a safety button to prevent burns when the temperature is increased, that is, upward beyond the default temperature range, but there is no insurance measure when the temperature is lowered, that is, downward beyond the default temperature range. It may cause the shower water temperature to drop sharply inadvertently; and as we all know, the impact of cold water often causes adverse stimuli to the body, thus bringing corresponding stress responses, especially for special users such as the three-high crowd and the elderly. dangerous.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a barrier-free concealed control valve that is easy to open, takes up little space, prevents scalding and cold, and can be opened twice to prevent scalding.

The technical scheme of the utility model is as follows:

A barrier-free concealed control valve, comprising a concealed box body, a concealed body, and a rotary control thermostatic valve. Between the waterways, the concealed body is installed in the concealed box; between the thermostatic valve and the water inlet, there is a push-type on-off valve, and the end of the on-off valve is equipped with a rotating handwheel, which can adjust the temperature of the thermostatic valve. Component linkage; press the rotating handwheel once, the on-off valve is closed, the thermostatic valve and the water inlet are cut off, and the rotating handwheel is not higher than the panel of the concealed box body; press the rotating handwheel again, the on-off valve is opened, the thermostatic valve and the water inlet are closed In the same way, the rotating hand wheel extends out of the panel of the concealed box body.

Preferably, the rotating handwheel includes an inner handwheel and an outer handwheel, one end of the inner handwheel is connected to the switching valve, and the other end of the inner handwheel is socketed with the outer handwheel to adjust the socket depth of the inner handwheel and the outer handwheel , thereby changing the overall length of the rotating handwheel.

As a preference, the outer handwheel is sleeved outside the inner handwheel, screw holes are respectively opened on both sides of the outer handwheel, and long slots are opened at the positions corresponding to the inner handwheel and the screw holes, and the screws extend into the screw holes and the long slots respectively. The inner cavity of the inner handwheel is screwed and fixed; the length of the long groove is the socket stroke of the outer handwheel on the inner handwheel.

Preferably, the rotating hand wheel is provided with a driving gear, and the temperature adjustment assembly includes a temperature adjustment gear of the thermostatic valve, a driven gear linked with the temperature adjustment gear, and the driving gear meshes with the driven gear; The locating ring, the locating ring limits the rotation of the driven gear between the coldest gear and the hottest gear, and the stroke of the driven gear between the coldest gear and the hottest gear is the temperature adjustment range of the thermostatic valve.

Preferably, the driven gear is a cylindrical structure with an open end, and the center of the driven gear is provided with a gear hole, and the temperature adjustment gear passes through the positioning ring and meshes in the gear hole; two protruding stoppers are provided on the outside of the gear hole Blocks, which are the coldest gear and the hottest gear respectively; one end of the positioning ring is provided with a raised positioning block, and the positioning ring is inserted into the driven gear through the opening of the driven gear; the positioning ring is fixed and does not rotate. When the gear rotates to the coldest gear position or the hottest gear position and pushes against the positioning block respectively, the driven gear stops rotating, and the rotating handwheel stops and continues to adjust the rotation.

Preferably, a gear slot is provided on the inner side wall of the driven gear, and the positioning ring is matched with the gear slot to be provided with an elastic protrusion, and the elastic protrusion divides the temperature adjustment range, and when the driven gear rotates, the elastic protrusion passes over the gear slot. Turning resistance to turning the handwheel increases.

Preferably, the two groove walls of the gear slot are arcuate projections arranged in mirror images, and the rising arc of the arcuate projection rises smoothly along the inner sidewall of the driven gear, and after reaching the highest position, it becomes an inclined downward descending slope.

Preferably, the driving gear is provided with a blocking tooth segment that cannot be meshed with the driven gear; when the rotating hand wheel is adjusted to the preset overtemperature area, the blocking tooth segment is located outside the meshing position of the driving gear and the driven gear, When the on-off valve is pressed, the blocking tooth segment is offset against the driven gear, limiting the rotation of the handwheel to continue to press and enter.

As a preference, a push-type switch valve is provided between the thermostatic valve and the water outlet channel, and a switch button is provided at the end of the switch valve. Press the switch button one by one, and the two water outlets will switch the water outlets in a cycle; press the switch button once, and the switch button will shrink. In, the switch button is not higher than the panel of the concealed box body; press the switch button again, the switch button pops up, and the switch button extends out of the panel of the concealed box body.

Preferably, the switch button includes a button guide post and a button cap sheathed on the end of the button guide post, and the depth of the socket between the button guide post and the button cap is adjusted to change the overall length of the switch button.

Preferably, a plurality of parallel inner card slots are provided on both sides of the end of the button guide column, and outer card slots are provided on both sides of the button cap opposite to the inner card slots, and after the outer card slots are aligned with one of the inner card slots, The clip spring clamped on the outside of the button cap is clamped on the inner clip slot through the two clip arms through the outer clip slot, and the clip spring fixes the button cap on the button guide column.

Preferably, in the water inlet, a filter assembly is provided between the water inlet and the switch valve, the filter assembly includes an elastic driver, a one-way piston, a filter screen, and a water plug, and an installation chamber is provided in the water inlet. The filter assembly is installed in the installation chamber; the installation chamber forms a piston chamber and a plug chamber through the partition wall, and the partition wall is provided with a water hole, the elastic drive part and the one-way piston are arranged in the piston chamber, the filter screen and the water outlet The plug is set in the plug chamber; after assembly, the water plug pushes against the one-way piston, so that the elastic driving part is in a compressed state; after the water plug is removed, the elastic driving part pushes the one-way piston to seal the water hole.

As a preference, a push rod is provided on the side of the one-way piston facing the water plug, and the push rod passes through the water hole to offset against the water plug; after the assembly is completed, the water plug pushes the one-way piston to compress through the push rod Elastic drive.

Preferably, a one-way assembly is arranged between the filter assembly and the switch valve, the one-way assembly includes a circlip, a one-way valve, and a one-way plug, and the one-way valve is positioned in the water inlet channel through the circlip and the one-way plug.

Preferably, the diameter of the rotating handwheel is not less than 45mm.

The beneficial effects of the utility model are as follows:

The barrier-free concealed control valve of the utility model adopts a push-type on-off valve and a switching valve, which are convenient for opening and switching operations. Moreover, the size of the rotary hand wheel of the on-off valve is increased, and the size is slightly modified, resulting in a huge change in the operation mode. In the prior art, whether it is rotating, pulling or pressing, the limitation of the faucet switch action mode that can only be operated by fingers is broken, and it is convenient to use other parts of the body - such as palms, wrists, elbows and even knees. The utility model is opened and closed by joints, which meets the requirements of barrier-free facilities, embodies the essence of humanized design, and is an improvement from the original intention of design to embody humanistic care. The rotating hand wheel is set to a structure and size that can be operated without fingers, which simplifies operation and saves labor; at the same time, the depth of concealed installation can be adjusted to ensure the convenience of operation.

When the utility model is in the closed state, the rotating hand wheel is almost flush with the panel of the concealed box body, and the size of the entire concealed box body exposed to the wall can be controlled to a minimum degree, which greatly simplifies the space effect, and is streamlined and prominent compared with the traditional faucet. Compared with the structure that takes up a lot of bathroom space due to a large section of the wall, it is undoubtedly a better choice for small-sized families, hotels and apartments with tight space.

The utility model provides an anti-scalding and anti-cold structure, which can prevent the water from being too hot or too cold when the water temperature is adjusted, causing discomfort to users. The utility model also provides a "secondary opening anti-scalding" function, which is a brand-new anti-scalding concept - the switch valve cannot be closed before it is adjusted to a safe temperature, which avoids the next user not noticing the rotation If the handwheel is not adjusted to a safe temperature, there is a risk of being scalded by high-temperature water after it is opened accidentally. It not only prevents the current user from being scalded, but also prevents the next user from being scalded.

The utility model is also equipped with an overriding prompt gear, which is not only anti-scald, but also anti-cold. Since the elastic convex hull exceeds the raised gear groove, it requires greater force, so it is prevented that the rotating handwheel is accidentally carried by clothes, bath towels, etc. Turn down the possibility of turning down the water temperature quickly.

Description of drawings

Fig. 1 is a structural exploded view of the utility model (not showing some conventional components);

Fig. 2 is the schematic diagram of the utility model;

Fig. 3 is a transverse sectional view of the utility model;

Fig. 4 is a longitudinal sectional view of the utility model;

Figure 5 is a sectional enlarged view of the rotating handwheel;

Fig. 6 is the schematic diagram of driven gear;

Fig. 7 is a schematic diagram of a positioning ring;

Fig. 8 is a schematic diagram of the inner handwheel;

Fig. 9 is a cross-sectional view of the non-return state of the rotating hand wheel;

Fig. 10 is a cross-sectional view of the reversible state of the rotating hand wheel;

Fig. 11 is a sectional view of the return state of the rotating hand wheel;

Figure 12 is an exploded view of the structure of the toggle button;

Figure 13 is a cross-sectional view of the position of the filter assembly and the one-way assembly;

Fig. 14 is an enlarged cross-sectional view of the opening of the water hole;

Figure 15 is an enlarged cross-sectional view of the closure of the water hole;

Fig. 16 is an effect diagram of the closed state of the utility model;

Fig. 17 is an effect diagram of opening the first water outlet;

Fig. 18 is an effect diagram of opening the second water outlet;

In the figure: 10 is the concealed box body, 11 is the concealed body, 12 is the panel, 13 is the water inlet, 20 is the switch valve, 21 is the rotating handwheel, 211 is the outer handwheel, 212 is the inner handwheel, 213 is Screw hole, 214 is a screw, 215 is a long groove, 216 is a supporting groove, 217 is a nut, 218 is a driving gear, 219 is a plugging gear segment, 30 is a thermostatic valve, 301 is a temperature adjustment gear, 31 is a driven gear , 311 is a limit block, 312 is a gear slot, 313 is an ascending arc surface, 314 is a descending slope, 315 is a gear hole, 32 is a positioning ring, 321 is a positioning block, 322 is an elastic convex hull, 40 is a switching valve, 41 is a switching button, 42 is a button guide column, 43 is a button cap, 44 is an inner card slot, 45 is an outer card slot, 46 is a clip spring, 47 is a clip arm, 50 is an elastic driver, 51 is a one-way piston, 52 is a push rod, 53 is a filter screen, 54 is a water plug, 55 is a partition wall, 56 is a water hole, 57 is a piston chamber, 58 is a plug chamber, 60 is a retaining ring, and 61 is a one-way Valve, 62 is a one-way plug.

detailed description

The utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

The utility model provides a concealed control valve for barrier-free use in order to solve the shortcomings of the existing concealed faucets, such as the inability to prevent cold, the inability to realize "secondary opening and anti-scalding", and the difficulty in operating with parts other than fingers. As shown in Figure 1, Figure 2 and Figure 3, it includes a concealed box body 10, a concealed body 11, and a rotary control thermostatic valve 30. The thermostatic valve 30 is installed in the concealed body 11, and the thermostatic valve 30 is located in the concealed body. Between the water inlet channel and the water outlet channel of the body 11 , the concealed body 11 is installed in the concealed box body 10 . The water inlet of the utility model includes a hot water inlet and a cold water inlet, respectively provided with a hot water inlet and a cold water inlet, and the water outlet is provided with two outlets. A push-type on-off valve 20 is arranged between the thermostatic valve 30 and the water inlet channel. In this embodiment, the on-off valve 20 is arranged between the hot water inlet channel and the thermostatic valve 30 . The end of the on-off valve 20 is provided with a rotating handwheel 21, which is linked with the temperature adjustment component of the thermostatic valve 30; by turning the rotating handwheel 21, the outlet water temperature of the thermostatic valve 30 can be adjusted. The utility model adopts a push-type switching valve 20, then press the rotating handwheel 21 once, the switching valve 20 is closed, the thermostatic valve 30 is cut off from the water inlet, and the rotating handwheel 21 is not higher than the panel 12 of the concealed box body 10. To achieve a beautiful effect, the rotating handwheel 21 can be set to be level with the panel 12 of the concealed box body 10; press the rotating handwheel 21 again, the on-off valve 20 will open, the thermostatic valve 30 will communicate with the water inlet, and the rotating handwheel 21 will extend The panel 12 of the concealed box body 10 is provided to facilitate the temperature adjustment operation. When not in daily use, the entire concealed control valve is almost flush with the wall and hardly takes up any space. Only when in use, the rotating handwheel 21 just stretches out of the wall.

In order to achieve barrier-free use, the utility model requires that the rotating hand wheel 21 can be pressed by most parts of the human body, that is, the size of the rotating hand wheel 21 is required to be sufficient to facilitate pressing operations on most parts of the human body, such as palms, wrists, elbow joints and even Knee joint comes switch this utility model. In this embodiment, the diameter of the rotating hand wheel 21 is greater than 45 cm, which is better in use. The diameter of the rotating hand wheel 21 can be set to 58 mm, which is convenient for body rubbing operation and prevents inadvertent misoperation.

As shown in Figure 4 and Figure 5, the rotating hand wheel 21 includes an inner hand wheel 212 and an outer hand wheel 211, one end of the inner hand wheel 212 is connected to the switch valve 20, and the other end of the inner hand wheel 212 is socketed with the outer hand wheel 211 , adjust the socket depth of the inner handwheel 212 and the outer handwheel 211, and then change the overall length of the rotating handwheel 21, so as to be suitable for different concealed installation requirements and ensure the convenience of operation. In this embodiment, the outer handwheel 211 is socketed outside the inner handwheel 212, and the two sides of the outer handwheel 211 are respectively provided with screw holes 213, and the position corresponding to the inner handwheel 212 and the screw hole 213 is provided with a long groove 215, and the screw 214 stretches into the inner cavity of the inner handwheel 212 from the screw hole 213 and the long groove 215 respectively, and is screwed and fixed; the length of the long groove 215 is the socket stroke of the outer handwheel 211 on the inner handwheel 212. The inner side wall of the inner hand wheel 212 is located at the position below the long groove 215 to be provided with a supporting groove 216. The nut 217 rotates on the supporting groove 216. When the screw 214 is screwed in, under the abutting action of the supporting groove 216, it prevents the The nut 217 is ejected by the screw 213 to facilitate the installation of the screw 214 . When it is necessary to adjust the socket depth of the outer handwheel 211 and the inner handwheel 212, then loosen the screw 214, then pull out or push in the outer handwheel 211, and then retighten the screw 214 after reaching the target position, and the outer handwheel 211 It is fixedly connected with the inner handwheel 212, and implements stepless adjustment of the rotating handwheel 21.

As shown in Figure 1, the rotating handwheel 21 is provided with a driving gear 218, and the temperature adjustment assembly includes a temperature adjustment gear 301 of a thermostatic valve 30, and a driven gear 31 linked with the temperature adjustment gear 301, and the driving gear 218 meshes with the driven gear 31 ; Then the driving gear 218 is linked with the driven gear 31, and then the driving gear 218 can indirectly control the rotation angle of the temperature regulation gear 301, and realize the rotation adjustment of the outlet water temperature of the thermostatic valve 30 by rotating the handwheel 21.

In order to prevent overheating or supercooling water, a positioning ring 32 is provided between the driven gear 31 and the thermostatic valve 30, and the positioning ring 32 limits the rotation of the driven gear 31 between the coldest gear and the hottest gear. The stroke of the gear 31 between the coldest gear and the hottest gear is the temperature adjustment range of the thermostatic valve 30 . In this embodiment, the maximum rotation angles of clockwise and counterclockwise are limited in the direction of rotation, so that the water temperature is controlled within the range of 26°C to 46°C. Wherein, as shown in Figure 6, the driven gear 31 is a cylindrical structure with an open end, and the center of the driven gear 31 is provided with a gear hole 315, and the temperature adjustment gear 301 passes through the positioning ring 32 and meshes in the gear hole 315; Two raised limit blocks 311 are arranged outside the hole 315, which are respectively the coldest gear and the hottest gear. As shown in Figure 7, one end face of the positioning ring 32 is provided with a raised positioning block 321, and the positioning ring 32 is inserted into the driven gear 31 by the opening of the driven gear 31; the positioning ring 32 is fixed and does not rotate, when the driven gear 31 When turning to the coldest gear or the hottest gear against the positioning block 321 respectively, the driven gear 31 stops rotating, and the rotating hand wheel 21 stops to continue adjusting the rotation. The rotation stroke between the coldest gear and the hottest gear corresponds to the allowable temperature adjustment range. In this embodiment, the limiting block 311 cooperates with the positioning block 321 to limit the clockwise and counterclockwise rotation angle limits of the driven gear 31 to 100 degrees respectively.

The utility model can also realize hand feeling feedback, which is used to prompt that the default temperature is exceeded. When rotating the handwheel 21 to adjust the temperature, it reaches the preset position, that is, the set temperature value. When the set temperature value is exceeded, the feel of rotating the handwheel 21 will change, and the change of feel will be fed back to the rotating handwheel 21, to prompt the user. Specifically: the inner side wall of the driven gear 31 is provided with a gear slot 312, and the positioning ring 32 cooperates with the gear slot 312 to be provided with an elastic convex hull 322, and the elastic convex hull 322 partitions the temperature adjustment range. When the bag 322 crosses the gear slot 312, the rotational resistance fed back to the rotating hand wheel 21 becomes larger. In this embodiment, a gear slot 312 is set, and the temperature adjustment interval of the present utility model is divided into two sections. corresponding settings.

The two groove walls of the gear slot 312 are arcuate bumps arranged as mirror images, and the rising arc 313 of the arcuate bump rises smoothly along the inner side wall of the driven gear 31, and after reaching the highest position, it becomes a downwardly inclined descending slope 314 . When the elastic protrusion 322 moves to the groove wall of the shift groove 312, the rising arc surface 313 is pressed against the elastic protrusion 322, and the rotation resistance becomes larger. The driven gear 31 continues to rotate, and the elastic protrusion 322 falls into the shift groove 312 along the descending slope 314 , thereby realizing a stuck feeling. The driven gear 31 continues to rotate, the elastic protrusion 322 squeezes against the descending slope 314, and continues to pass over the ascending arc 313, the rotational resistance gradually becomes smaller until the normal rotational feel is restored. The gear slot 312 and the elastic protrusion 322 are used together, and the user can judge the indication state of the current rotating hand wheel 21 through the hand feeling information without staring at the rotating hand wheel 21 .

In this embodiment, the default temperature range is preset to 36°C to 42°C, which can meet the basic needs of the general population for healthy showers; only in special cases will it be necessary to set the outlet water temperature beyond this range; the reminder of exceeding the default temperature is beneficial to the user. Very good indication, especially for those with poor eyesight.

The utility model also realizes the function of "secondary opening anti-scalding", which prevents the last user from setting too high water temperature and directly closing the on-off valve 20. If the next user does not find the current set temperature, Opening it directly may cause burns. Specifically: as shown in Figure 8, the drive gear 218 is provided with a section of blocking tooth segment 219 that cannot mesh with the driven gear 31; When reaching the preset over-temperature area, the blocking tooth segment 219 is located outside the meshing position between the driving gear 218 and the driven gear 31, and when the switch valve 20 is pressed, the blocking tooth segment 219 is offset against the driven gear 31 to limit the rotation of the handwheel 21 Continue to press and enter to produce an overheating non-return effect, as shown in Figure 9. When the on-off valve 20 needs to be closed, only the driving gear 218 is turned in the direction of cooling until the blocking tooth section 219 breaks away from the meshing position of the driving gear 218 and the driven gear 31, as shown in FIG. 218 and the driven gear 31 can smoothly engage and slide, as shown in Figure 11, until the on-off valve 20 is closed.

The utility model also realizes the two-stage water outlet function, and a press-type switching valve 40 is provided between the thermostatic valve 30 and the water outlet channel. The outlet switches the water out in a cycle; press the switch button 41 once, the switch button 41 retracts, and the switch button 41 is not higher than the panel 12 of the concealed box body 10; press the switch button 41 again, the switch button 41 pops up, and the switch button 41 extends out of the dark The panel 12 of the box body 10. When not in use, the switch button 41 can be pressed to the indented state. The switch button 41 is not higher than the panel 12 of the concealed box body 10, which is beautiful and simple, and does not take up space.

As shown in Fig. 4 and Fig. 12, the switching button 41 includes a button guide column 42, a button cap 43 sleeved on the end of the button guide column 42, and adjusts the socket depth of the button guide column 42 and the button cap 43, thereby changing the switching button. The overall length of 41 is suitable for different concealed installation requirements and ensures the convenience of operation. In this embodiment, both sides of the end of the button guide column 42 are provided with a number of parallel inner slots 44 along the radial direction, and outer slots 45 are provided on both sides of the button opposite to the slots. After one of the inner card slots 44 is aligned, the clamp spring 46 clamped outside the button cap 43 is clamped on the inner card slot 44 through two clamp arms 47 through the outer card slot 45, and the clamp spring 46 fixes the button cap 43 on the button. on the guide post 42. When it is necessary to adjust the fitting depth of the button cap 43 and the button guide column 42, the clip arm 47 of the clip spring 46 is broken apart to make it break away from the inner slot 44, and at this time, pull out or push the button cap 43 to the outer slot 45. Accurate next inner draw-in groove 44, clamp spring 46 in inner draw-in groove 44 again, finish the fixed installation of button cap 43 and button guide post 42, realize the step-by-step adjustment of button cap 43.

In order to keep the internal waterway and components of the utility model clean and prolong the service life, the incoming water is filtered. Specifically: as shown in Figure 13, in the water inlet channel, a filter assembly is arranged between the water inlet 13 and the switch valve 20. Since the hot water inlet channel and the cold water inlet channel are provided in this embodiment, the hot water Both the water inlet waterway and the cold water inlet waterway are provided with filter assemblies. The filter assembly includes an elastic driver 50, a one-way piston 51, a filter screen 53, and a water plug 54. An installation chamber is provided in the water inlet channel, and the filter assembly is located in the installation chamber; the installation chamber forms a piston through a partition wall 55. The chamber 57, the plug chamber 58, the partition wall 55 is provided with a water hole 56, the elastic driving member 50 and the one-way piston 51 are arranged in the piston chamber 57, the filter screen 53 and the water outlet plug 54 are arranged in the plug In the chamber 58; the filter screen 53 that is in charge of is set in the water-passing plug 54. The one-way piston 51 is provided with a push rod 52 on the side facing the water plug 54, and the push rod 52 passes through the water hole 56 to offset the water plug 54; after the assembly is completed, the water plug 54 passes through the push rod 52 Push the one-way piston 51 to compress the elastic driver 50, so that the elastic driver 50 is in a compressed state; the water hole 56 is opened, and the water flows through the filter screen 53 and the water plug 54 and enters the water inlet normally, as shown in FIG. 14 . When maintenance is required, the water outlet plug 54 is removed, and the elastic drive member 50 pushes the one-way piston 51 to seal the water outlet 56. As shown in Figure 15, the water flow is stopped near the water inlet 13, and other components can be maintained with the replacement operation.

In order to prevent backflow, a one-way assembly is provided between the filter assembly and the switch valve 20. The one-way assembly includes a snap ring 60, a one-way valve 61, and a one-way plug 62. The one-way valve 61 passes through the snap ring 60 and the one-way plug. 62 is positioned within the intake waterway. On the premise that the water passing plug 54 is removed, the one-way assembly can be maintained and replaced.

Use effect of the present utility model is as follows:

As shown in Figure 16, when the rotating hand wheel 21 and the button cap 43 are flush with the panel 12 of the concealed box body 10, the utility model is in a closed state;

As shown in Figure 17, when the rotating hand wheel 21 is in the extended state, the button cap 43 is flush with the panel 12 of the concealed box body 10, the utility model is in the open state, and water is discharged from the first water outlet; the rotating hand wheel 21 is counterclockwise Rotate to lower the water temperature, and vice versa to increase the water temperature;

As shown in Fig. 18, when the rotating hand wheel 21 and the button cap 43 are in the extended state, the utility model is in the open state, and the second water outlet will discharge water.

The above-mentioned embodiments are only used to illustrate the utility model, but not to limit the utility model. As long as it is based on the technical essence of the present utility model, changes and modifications to the above-mentioned embodiments will fall within the scope of the claims of the present utility model.

Claims (15)

1. a dark cartridge control valve for accessible use, including concealed installation box body, concealed installation body, rotation controlled thermostatic valve, thermostatic valve is installed on concealed installation, and this is internal, and thermostatic valve is located between the water inlet water route of concealed installation body and water outlet water route, and concealed installation body is installed in concealed installation box body；It is characterized in that, be provided with the switch valve of pressing type between thermostatic valve and water inlet water route, the end of switch valve is provided with rotation hand wheel, and the temperature adjustment component of rotation hand wheel and thermostatic valve links；Pressing a rotation hand wheel, switch valve cuts out, and thermostatic valve ends with water inlet water route, and rotation hand wheel is not higher than the panel of concealed installation box body；Again pressing rotation hand wheel, switch valve is opened, and thermostatic valve communicates with water inlet water route, and rotation hand wheel extends the panel of concealed installation box body.

2. the dark cartridge control valve of accessible use according to claim 1, it is characterized in that, rotation hand wheel includes interior handwheel, outer hand wheel, one end connecting valve valve of interior handwheel, the other end of interior handwheel and outer hand wheel socket-connect, the socket degree of depth of handwheel and outer hand wheel in regulating, and then change the entire length of rotation hand wheel.

3. the dark cartridge control valve of accessible use according to claim 2, it is characterized in that, outer hand wheel is socketed in outside interior handwheel, the both sides of outer hand wheel offer screw respectively, the position that interior handwheel is corresponding with screw offers elongated slot, screw stretches into interior handwheel inner chamber from screw, elongated slot respectively, and it is fixing to carry out being spirally connected；The length of elongated slot is outer hand wheel socket stroke on interior handwheel.

4. the dark cartridge control valve of accessible use according to claim 1, it is characterised in that rotation hand wheel is provided with driving gear, temperature adjustment component includes the homoiothermic gear of thermostatic valve and the driven gear of homoiothermic gear-linked, drives gear to engage with driven gear；Being provided with centring ring between driven gear and thermostatic valve, centring ring restriction driven gear rotates between the coldest gear and boiling the hottest gear, the driven gear thermoregulation range that stroke is thermostatic valve between the coldest gear and boiling the hottest gear.

5. the dark cartridge control valve of accessible use according to claim 4, it is characterised in that driven gear is the tubular construction of end face opening, driven gear center is provided with gear hole, and homoiothermic gear, through centring ring, is engaged in gear hole；Be provided with two protruding limited blocks outside gear hole, respectively the coldest gear, boiling the hottest gear；The end face of centring ring is provided with the locating piece of projection, and centring ring is loaded driven gear by the opening sleeve of driven gear；Centring ring maintains static dynamic, and when driven gear turns to the coldest gear or boiling the hottest gear respectively with locating piece contact, driven gear stops operating, and rotation hand wheel stops continuing to regulate rotating.

6. the dark cartridge control valve of accessible use according to claim 5, it is characterized in that, the medial wall of driven gear arranges gear groove, centring ring and gear slot fit are provided with elastic convex closure, thermoregulation range is carried out subregion by elastic convex closure, driven gear rotates, and elastic convex closure feeds back to the rotary resistance of rotation hand wheel and becomes big when crossing gear groove.

7. the dark cartridge control valve of accessible use according to claim 6, it is characterized in that, two cell walls of gear groove are the cambered surface projection that mirror image is arranged, and the rising cambered surface of cambered surface projection, along the smooth rising in medial wall of driven gear, is falling ramp diagonally downward after arriving extreme higher position.

8. the dark cartridge control valve of accessible use according to claim 4, it is characterised in that drive gear to be provided with one section of closure tooth section that cannot engage with driven gear；When rotation hand wheel is adjusted to default overtemperature region, closure tooth section is positioned at the outside driving gear with the driven gear position of engagement, and during pressing switch valve, closure tooth section offsets with driven gear, and restriction rotation hand wheel continues pressing and enters.

9. the dark cartridge control valve of accessible use according to claim 1, it is characterized in that, being provided with the switching valve of pressing type between thermostatic valve and water outlet water route, the end of switching valve is provided with switching push button, gradually pressing switching push button, two outlets are circulated switching water discharging；Pressing a switching push button, switching push button indentation, switching push button is not higher than the panel of concealed installation box body；Again pressing switching push button, switching push button ejects, and switching push button extends the panel of concealed installation box body.

10. the dark cartridge control valve of accessible use according to claim 9, it is characterized in that, switching push button includes button lead, is sheathed on the button cap of button lead end, regulates the socket degree of depth of button lead and button cap, and then changes the entire length of switching push button.

11. the dark cartridge control valve of accessible use according to claim 10, it is characterized in that, the both sides, end of button lead offer some parallel inner card cages, the position that the both sides of button cap are relative with inner card cage offers exterior bayonet slot, after exterior bayonet slot is directed at one of them inner card cage, the folder spring being installed in outside button cap clamps on inner card cage by two jig arm through exterior bayonet slot, and folder spring is positioned at fixing for button cap on button lead.

12. the dark cartridge control valve of accessible use according to claim 1, it is characterized in that, in water inlet water route, filter assemblies it is provided with between water inlet and switch valve, filter assemblies includes elastic drive part, one-way piston, filter screen, crosses water blocking head, water inlet is provided with installation chamber in water route, and filter assemblies is located at installation cavity indoor；Installing chamber and form piston chamber, plug chamber by partition wall, partition wall offers water hole, and elastic drive part and one-way piston are located in piston chamber, and filter screen is located in plug chamber with crossing water blocking head；After having assembled, cross water blocking head by contact one-way piston, make elastic drive part be in compressive state；After pulling down water blocking head, elastic drive part promotes one-way piston to seal water hole.

13. the dark cartridge control valve of accessible use according to claim 12, it is characterised in that one-way piston is provided with push rod towards the side crossing water blocking head, push rod, through water hole, offsets with crossing water blocking head；After having assembled, cross water blocking head and promote one-way piston elasticity of compression actuator by push rod.

14. the dark cartridge control valve of accessible use according to claim 12, it is characterized in that, being provided with one way component between filter assemblies and switch valve, one way component includes jump ring, check valve, unidirectional plug, and check valve is positioned in water water route by jump ring and unidirectional plug.

15. the dark cartridge control valve of accessible use according to claim 1, it is characterised in that the diameter of rotation hand wheel is not less than 45mm.