CN104976384B - Constant temperature antipriming with handoff functionality - Google Patents

Abstract

The invention discloses a temperature-fixed water-stop device with switching function. The temperature-regulating component includes a first sliding sleeve, and the first sliding sleeve is provided with a second water passing hole connected with the first water passing hole. The first sliding sleeve and the sealing The water inlet is disconnected from the second water passage hole when the parts are sealed and matched, and the water inlet is connected to the second water passage hole when the first sliding sleeve is separated from the seal; the switching assembly includes a second sliding sleeve that can slide relative to the fixed part , the second sliding sleeve cooperates with the first water hole so that the second water hole is switched or connected with the first water outlet and the second water outlet at the same time. It has the following advantages: the temperature of the water stop can be preset through the temperature adjustment component, and the residual cold water in the device can be discharged to realize the function of water stop at an appropriate temperature, and the high temperature can be set by adjusting the distance between the seal and the first sliding sleeve The water stop temperature realizes over-temperature protection; at the same time, adjusting the switching component can realize three switching functions, that is, the first water outlet, the second water outlet, or the first water outlet and the second water outlet simultaneously.

Description

Constant temperature and water stop device with switching function

technical field

The invention relates to a constant temperature and water stop device with switching function.

Background technique

The existing cooling device can only stop water at a specific temperature point. The temperature of the water stop is fixed by the parameters of the temperature sensing element when it leaves the factory. The terminal cannot adjust or set the water stop temperature, which is extremely inconvenient to use; and The existing cooling device can only discharge the cold water of one waterway alone, but cannot discharge the cold water of two waterways at the same time, and it is troublesome to drain the cold water.

Contents of the invention

The invention provides a constant temperature and water stop device with switching function, which overcomes the shortcomings of the background technology. The technical solution adopted by the present invention to solve the technical problem is: a constant temperature and water stop device with switching function, which is characterized in that it includes:

A fixed part, which is provided with a water inlet (110), a first water outlet (120), a second water outlet (130) and a first water hole (140);

A temperature-sensing element (200) capable of changing volume with temperature changes, which is installed in the fixed part;

A water stop component, which is slidably fitted in the fixed part and is driven to connect the temperature sensing element (200), which includes a seal (310);

A temperature adjustment assembly, which includes a first sliding sleeve (410) that can slide relative to the fixed part, and the first sliding sleeve (410) is provided with a second water passage hole (420) connected to the first water passage hole (140) , the water inlet (110) is disconnected from the second water hole (420) when the first sliding sleeve (410) is sealed with the seal (310), and the first sliding sleeve (410) is connected to the seal (310) When separating, the water inlet (110) is connected to the second water hole (420);

A switch assembly, which includes a second sliding sleeve (510) that can slide relative to the fixed part, and the second sliding sleeve (510) cooperates with the first water hole (140) so that the second water hole (420) and the first The water outlet (120) and the second water outlet (130) are switched or connected simultaneously.

In a preferred embodiment: the water-stop assembly further includes a water-stop ring, the seal (310) is fixedly connected to the water-stop ring, and the temperature-sensing element (200) extends into the water-stop ring and its head ends against it The water ring is further provided with a first elastic member (320). The first elastic member (320) is sleeved on the outer periphery of the water stop ring and its two ends respectively abut against the water stop ring and the fixed part.

In a preferred embodiment: the water stop ring includes a first ring body (330) and a second ring body (340) sleeved and fixed outside the first ring body (330), and the temperature sensing element (200) in turn Extend into the second ring body and abut against the first ring body (330), the first elastic member (320) is sleeved outside the second ring body (340) and its two ends abut against the second ring body (340) and In the fixed part, the seal (310) is fixed on the top surface of the second ring body (340) and is ring-shaped, and the first sliding sleeve (410) is provided with a stepped surface ( 411), the stepped surface (411) is located on the inner wall of the first sliding sleeve (410) and is annular.

In a preferred embodiment: the temperature adjustment assembly further includes a temperature adjustment knob (430) and a first transmission assembly, the temperature adjustment knob (430) is rotatably attached to the fixed part, and the first transmission assembly is connected to the temperature adjustment knob (430 ) and the first sliding sleeve (410), the temperature adjustment knob (430) rotates and drives the first sliding sleeve (410) to slide back and forth through the first transmission assembly.

In a preferred embodiment: the first transmission assembly includes an adjustment joint (440) and a screw head (450) screwed and matched with the adjustment joint (440), the adjustment joint (440) is rotatably mounted on the fixed part and It rotates synchronously with the temperature adjustment knob (430), and the screw head (450) is fixedly connected with the first sliding sleeve (410).

In a preferred embodiment: it also includes a rotation-preventing mechanism for preventing the rotation of the first sliding sleeve (410). A sliding bar slidingly fitted with the anti-rotation groove; alternatively, the anti-rotation mechanism includes an anti-rotation groove disposed on the first sliding sleeve (410) and a sliding bar protruding from the fixed part and slidingly fitted with the anti-rotation groove.

In a preferred embodiment: the second sliding sleeve (510) is provided with a sealing part (511), the width of the sealing part (511) is smaller than the width of the first water hole (140), and the fixed part has a The first side (151) and the second side (152) on the two sides of the water hole (140), the sealing part (511) and the first side (151) are sealed and matched, and the sealing part (511) and the second side When the two side parts (152) are in sealing fit and the sealing part (511) is facing the first water hole (140), respectively, the second water hole (140) is connected with the second water outlet (130), and the second The water passage hole (140) is connected with the first water outlet (120) and the second water passage hole (140) is connected with the second water outlet at the same time.

In a preferred embodiment: the sealing part (511) is located at the end of the second sliding sleeve (510), and the second sliding sleeve (510) is also provided with a through hole adjacent to the sealing part (511) ( 512), when the sealing part (511) is sealingly matched with the first side part (151), the second water hole (140) is connected to the second water outlet (130) through the through hole (512).

In a preferred embodiment: the switching assembly further includes a switching knob (520) and a second transmission assembly, the switching knob (520) is rotatably attached to the fixed part, and the second transmission assembly connects the switching knob (520) and the second transmission assembly. The sliding sleeve (510), the switching knob (520) rotates and drives the second sliding sleeve (510) to slide back and forth through the second transmission assembly.

In a preferred embodiment: the fixed part includes a housing (161), a fixing sleeve (162), a bushing (163) and a fixing seat (164), and the housing (161) is provided with the water inlet ( 110) and two water outlets, the fixed sleeve (162) is sleeved in the housing (161) and is provided with the first water hole (140), the bushing (163) is fixedly sleeved on the fixed sleeve ( 162) and the bushing (163) is provided with a third water hole (165) that can be connected with the first water hole (140), and the temperature sensing element (200) is set on the fixed seat (164), fixed The seat (164) is fixedly connected with the bushing (163), and the fixed seat (164) is also provided with a through hole (166) connected with the water inlet (110). The water stop assembly and the first sliding sleeve (410) are both The second sliding sleeve (510) is slidably installed in the bushing (163), and is slidably installed between the fixed sleeve (162) and the housing (161).

Compared with the background technology, this technical solution has the following advantages:

1. The water stop device can preset the water stop temperature through the temperature adjustment component, discharge the remaining cold water in the device, and realize the water stop function at an appropriate temperature, and then set it by adjusting the distance between the seal and the first sliding sleeve High temperature stop water temperature to realize over-temperature protection; at the same time, three switching functions can be realized by adjusting the switching component, that is, water is discharged from the first water outlet, water is discharged from the second water outlet, or water is discharged from the first water outlet and the second water outlet simultaneously.

2. The temperature-sensing element extends into the water-stop ring and its head end touches the water-stop ring, so that when the temperature-sensing element reaches a predetermined temperature and expands, it can drive the water-stop ring to move. If the temperature-sensing element shrinks when it is cold, the water-stop ring can Resetting is performed through the first elastic member.

3. The seal is ring-shaped, and the step surface is ring-shaped, so that the sealing effect is good when the seal is sealed with the step surface. When the seal is separated from the step surface, the force on the seal is even and the separation is rapid.

4. The width of the sealing part is smaller than the width of the first water hole, so that when the sealing part is facing the first water hole, the second water hole can be connected with the second water outlet at the same time to realize simultaneous drainage.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

FIG. 1 shows an overall schematic diagram of a temperature-fixed water-stop device with a switching function in a preferred embodiment.

Fig. 2 shows one of the three-dimensional exploded schematic diagrams of a temperature-fixed water-stop device with switching function in a preferred embodiment.

Fig. 3 shows the second perspective exploded schematic diagram of a temperature-fixed water-stop device with switching function in a preferred embodiment.

Fig. 4 shows a perspective cross-sectional schematic view of a temperature-fixed water-stop device with switching function in a preferred embodiment.

Fig. 5 is a schematic diagram showing a state in which the sealing member is separated from the first sliding sleeve and the two water outlets discharge cold water at the same time in a preferred embodiment.

FIG. 6 is a schematic top view of a preferred embodiment in which the sealing member is separated from the first sliding sleeve and the two water outlets discharge cold water simultaneously.

Fig. 7 is a schematic diagram showing a state in which the sealing member and the first sliding sleeve are in sealing cooperation and the two water outlets are simultaneously sealed off in a preferred embodiment.

Fig. 8 shows a schematic side view of a preferred embodiment in which the sealing member is in sealing fit with the first sliding sleeve and the two water outlets are simultaneously water-tight.

FIG. 9 is a schematic diagram of a state in which the temperature sensing temperature of the temperature sensing element is increased so that the sealing member is separated from the first sliding sleeve in a preferred embodiment.

FIG. 10 is a schematic side view of a preferred embodiment when the temperature sensing temperature of the temperature sensing element is increased so that the sealing member is separated from the first sliding sleeve.

Fig. 11 is a schematic diagram of a state in which the sealing part and the second side part are sealed and matched to make water flow out from the first water outlet in a preferred embodiment.

Fig. 12 is a schematic top view of a preferred embodiment in which the sealing part is sealed and fitted with the second side part so that water flows out of the first water outlet.

Fig. 13 is a schematic diagram showing a state where the sealing part is facing the second water hole so that the two water outlets output water at the same time in a preferred embodiment.

Fig. 14 is a schematic top view of a preferred embodiment in which the sealing part is facing the second water hole so that the two water outlets can output water simultaneously.

Fig. 15 is a schematic diagram of a state in which the sealing part and the first side part are sealed and matched to make water flow out from the second water outlet in a preferred embodiment.

Fig. 16 is a schematic top view of a preferred embodiment in which the sealing part seals with the first side part so that the second water outlet can discharge water.

detailed description

Please refer to Figure 1 to Figure 16, a preferred embodiment of the constant temperature water stop device with switching function, the constant temperature water stop device with switch function, it includes a fixed part, a temperature sensing element 200, a water stop component, a regulating temperature components and switching components.

The fixed part is provided with a water inlet 110 , a first water outlet 120 , a second water outlet 130 and a first water hole 140 .

In this embodiment, the fixed part includes a housing 161, a fixing sleeve 162, a bushing 163 and a fixing seat 164. The housing 161 is provided with the water inlet 110 and two water outlets, and the fixing sleeve 162 is sleeved on the housing. The body 161 is provided with the first water passage hole 140, the bushing 163 is fixedly sleeved in the fixed sleeve 162 and the bushing 163 is provided with a third water passage that can be connected with the first water passage hole 140. The hole 165 , the fixing seat 164 is fixedly connected with the bushing 163 , and the fixing seat 164 is also provided with a through hole 166 connected with the water inlet 110 .

In this embodiment, the fixed part further includes an end cover 167, which is located in the housing 161 and is threadedly connected to the fixing sleeve 162. 168 perforations. The water flowing in from the water inlet enters into the bushing 163 through the perforation 168 and the through hole 166 .

In this embodiment, the fixing portion has a first side portion 151 and a second side portion 152 located on two sides of the first water hole 140 .

The temperature-sensing element 200 can change volume with the change of temperature, and it is installed in the fixed part. In this embodiment, the temperature sensing element 200 is disposed on the fixing base 164 .

The water-stop assembly, which is slidably mounted in the fixed part and connected to the temperature-sensing element 200 by transmission, includes a seal 310 . In this embodiment, the water-stop component is slidably mounted in the bushing 163 .

In this embodiment, the water-stop assembly also includes a water-stop ring, the sealing member 310 is fixedly connected to the water-stop ring, the temperature sensing element 200 extends into the water-stop ring and its head end touches the water-stop ring, and a second An elastic member 320 , the first elastic member 320 is sleeved on the outer periphery of the water stop ring, and its two ends respectively abut against the water stop ring and the fixing part.

The water stop ring includes a first ring body 330 and a second ring body 340 sleeved and fixed outside the first ring body 330. The temperature sensing element 200 extends into the second ring body in turn and abuts against the first ring body 330. An elastic member 320 is sleeved on the second ring body 340 and its two ends abut against the second ring body 340 and the bushing 163 . The sealing member 310 is fixed on the top surface of the second ring body 340 and is ring-shaped.

The temperature adjustment assembly includes a first sliding sleeve 410 that can slide relative to the fixed part. The first sliding sleeve 410 is provided with a second water passing hole 420 connected to the first water passing hole 140. The first sliding sleeve 410 The water inlet 110 is disconnected from the second water hole 420 when it is in sealing cooperation with the sealing member 310 , and the water inlet 110 is connected to the second water hole 420 when the first sliding sleeve 410 is separated from the sealing member 310 . In this embodiment, the first sliding sleeve 410 is slidably mounted in the bushing 163 .

In this embodiment, the first sliding sleeve 410 is provided with a stepped surface 411 capable of matching with the sealing element 310 , and the stepped surface 411 is located on the inner wall of the first sliding sleeve 410 and is annular.

In this embodiment, the temperature adjustment assembly further includes a temperature adjustment knob 430 and a first transmission assembly. The temperature knob 430 rotates and drives the first sliding sleeve 430 to slide back and forth through the first transmission assembly.

In this embodiment, the first transmission assembly includes an adjustment joint 440 and a screw head 450 that is screwed and matched with the adjustment joint 440. The adjustment joint 440 is rotatably attached to the fixed part and rotates synchronously with the temperature adjustment knob 430. The screw head 450 It is fixedly connected with the first sliding sleeve 410 .

In this embodiment, the water stop device further includes a first anti-rotation mechanism for preventing the first sliding sleeve 410 from rotating. and a sliding bar that slidably fits with the anti-rotation groove; or, the first anti-rotation mechanism includes an anti-rotation groove disposed on the first sliding sleeve 410 and a sliding bar protruding from the fixed part and slidingly fitted with the anti-rotation groove .

The switching assembly includes a second sliding sleeve 510 that can slide relative to the fixed part, and the second sliding sleeve 510 cooperates with the first water hole 140 so that the second water hole 420 is connected to the first water outlet 120, the second The water outlets 130 are switched or connected simultaneously. In this embodiment, the second sliding sleeve 510 is slidably connected between the fixing sleeve 162 and the housing 161 .

In this embodiment, the second sliding sleeve 510 is provided with a sealing portion 511 , and the width of the sealing portion 511 is smaller than the width of the first water hole 140 . When the sealing part 511 is in sealing fit with the first side part 151, the sealing part 511 is in sealing fit with the second side part 152, and the sealing part 511 is facing the first water hole 140, respectively, the second water hole 140 and the second outlet The water outlet 130 is connected, the second water hole 140 is connected with the first water outlet 120 , and the second water hole 140 is connected with the second water outlet at the same time.

In this embodiment, the sealing portion 511 is located at the end of the second sliding sleeve 510, and the second sliding sleeve 510 is also provided with a through hole 512 adjacent to the sealing portion 511. The sealing portion 511 is in contact with the first side portion 151. When the seal fits, the second water hole 140 flows through the through hole 512 and connects with the second water outlet 130 .

In this embodiment, the switching assembly further includes a switching knob 520 and a second transmission assembly, the switching knob 520 is rotatably attached to the fixed part, the second transmission assembly connects the switching knob 520 and the second sliding sleeve 510, the switching knob 520 rotates and The second sliding sleeve 510 is driven to slide forward and backward by the second transmission assembly.

In this embodiment, the second transmission assembly includes a transmission sleeve 530 , which rotates synchronously with the switching knob 520 and is threadedly engaged with the second sliding sleeve 510 . In addition, a second anti-rotation mechanism for preventing the rotation of the second sliding sleeve 510 is provided, and its principle is the same as that of the first anti-rotation mechanism.

As shown in Figure 5 and Figure 6, before using water, you can set a lower limit temperature that is suitable for the human body to stop the water temperature by turning the temperature adjustment knob. For example, set the water stop temperature to 38 degrees, and then turn the switch knob to 2 The water outlets are all connected to the water inlets, that is, the rotation of the switching knob drives the second sliding sleeve 510 to slide through the second transmission assembly until the sealing portion 511 faces the first water hole 140 .

Turn on the water inlet switch, because the water temperature has not yet reached the preset water stop temperature of 38 degrees, the seal and the step surface are in a state of separation, water enters the water inlet 110, and flows through the through hole 168 and the through hole 166 into the bushing 163, It then flows into the first sliding sleeve 410 through the gap between the seal and the step surface, and then flows from the second water hole 420 through the first water hole 140, one of which flows to the first water outlet 120, and the other water path It flows to the second water outlet 130 through the through hole 512, so that the two water channels can discharge cold water at the same time.

When the water temperature reaches the preset water stop temperature of 38 degrees, the temperature sensing element 200 expands, driving the water stop ring to move toward the first sliding sleeve until the sealing member 310 seals and cooperates with the step surface 411, as shown in Figure 7, the water inlet 110 and the second water outlet are not connected, and the water stop is realized, which means that the cold water in the water system has been exhausted and water can be used. As shown in Figure 8.

If water is needed at this time, the temperature adjustment knob can be turned to the upper limit temperature that the human body feels more comfortable. Of course, the selection of this temperature is different according to the user. The temperature adjustment knob 430 drives the first sliding sleeve 410 to slide to the side away from the water stop ring through the first transmission assembly. At this time, under the action of the first elastic member 320, the distance between the sealing member and the step surface is enlarged, as As shown in Figure 10, the seal is separated from the stepped surface 411, the water entering the bush 163 flows into the first sliding sleeve 410 through the gap between the seal and the stepped surface, and one of the water channels flows to the first water outlet 120, The other water channel flows to the second water outlet 130 through the through hole 512, and the two water channels output water at the same time, as shown in FIG. 9 .

If it is necessary to switch the waterway, just turn the switch knob 520 to drive the second sliding sleeve 510 to slide through the second transmission assembly, as shown in Figure 12, turn the switch knob 520 to this gear, at this time, its water outlet state is shown in Figure 11 As shown, the sealing portion 511 is in sealing fit with the second side portion 152 , and the first water hole 140 is in communication with the first water outlet 120 . As shown in FIG. 14 , turn the switch knob 520 to this position. At this time, the water outlet state is shown in FIG. 13 , and the sealing part 511 is facing the first water outlet 140 , so that the two water outlets output water at the same time.

As shown in Figure 16, turn the switch knob 520 to this gear position. At this time, its water outlet state is shown in Figure 15, the sealing part 511 is sealed with the first side part 151, and the first water hole 140 and the second The water outlets 130 are connected.

At this time, if the water temperature in the shower system is too high, such as higher than 42 degrees, the temperature sensing element 200 will continue to expand, driving the water stop ring to move toward the first sliding sleeve until the sealing member 310 seals and cooperates with the step surface 411, and then again Realize water stop, can play the role of over-temperature protection for users.

The above is only a preferred embodiment of the present invention, so the scope of the present invention cannot be limited accordingly, that is, the equivalent changes and modifications made according to the patent scope of the present invention and the content of the specification should still be covered by the present invention within range.

Claims (10)

1. Constant temperature and water stop device with switching function, which includes: a fixed part, which is provided with a water inlet (110), a first water outlet (120), a second water outlet (130) and a first water hole (140); and a switch assembly, which includes a second sliding sleeve (510) capable of sliding relative to the fixed part; It is characterized in that: it also includes: A temperature-sensing element (200) capable of changing volume with temperature changes, which is installed in the fixed part; A water stop assembly, which is slidably fitted in the fixed part and is drivingly connected to the temperature sensing element (200), which includes a seal (310); and The temperature adjustment assembly includes a first sliding sleeve (410) that can slide relative to the fixed part, and the first sliding sleeve (410) is provided with a second water passing hole (420) connected to the first water passing hole (140) , when the first sliding sleeve (410) and the sealing member (310) are sealed and matched When separating, the water inlet (110) is connected to the second water hole (420); wherein: the second sliding sleeve (510) cooperates with the first water hole (140) so that the second water hole (420) and The first water outlet (120) and the second water outlet (130) are switched or connected simultaneously. 2. The constant temperature water stop device with switching function according to claim 1, characterized in that: the water stop assembly also includes a water stop ring, the sealing member (310) is fixedly connected to the water stop ring, and the temperature sensing element (200 ) into the water-stop ring and its head end against the water-stop ring, and a first elastic member (320) is provided, the first elastic member (320) is sleeved on the outer circumference of the water-stop ring and its two ends respectively push against the water-stop ring Water ring and fixed part. 3. The constant temperature water stop device with switching function according to claim 2, characterized in that: the water stop ring includes a first ring body (330) and a second ring body (330) sleeved and fixed outside the first ring body (330). The second ring body (340), the temperature sensing element (200) sequentially extends into the second ring body and abuts against the first ring body (330), the first elastic member (320) is sleeved outside the second ring body (340) and Its two ends are against the second ring body (340) and the fixed part, and the seal (310) is fixed on the top surface of the second ring body (340) and is ring-shaped. The first sliding sleeve (410) is set There is a stepped surface (411) capable of matching with the sealing element (310), and the stepped surface (411) is located on the inner wall of the first sliding sleeve (410) and is annular. 4. The constant temperature and water stop device with switching function according to claim 1, characterized in that: the temperature adjustment assembly also includes a temperature adjustment knob (430) and a first transmission assembly, and the temperature adjustment knob (430) is rotatably connected In the fixed part, the first transmission assembly connects the temperature adjustment knob (430) and the first sliding sleeve (410), and the temperature adjustment knob (430) rotates and drives the first sliding sleeve (410) to slide back and forth through the first transmission assembly. 5. The constant temperature and water stop device with switching function according to claim 4, characterized in that: the first transmission assembly includes an adjustment joint (440) and a screw head (450) screwed and matched with the adjustment joint (440) ), the adjusting joint (440) is rotatably mounted on the fixed part and rotates synchronously with the temperature adjustment knob (430), and the screw head (450) is fixedly connected with the first sliding sleeve (410). 6. The constant temperature and water stop device with switching function according to claim 5, characterized in that it also includes a stop mechanism for preventing the rotation of the first sliding sleeve (410), and the stop mechanism includes a stop provided on the fixed part. The rotation groove and the sliding bar protruding from the first sliding sleeve (410) and slidingly fitted with the anti-rotation groove; or, the anti-rotation mechanism includes the anti-rotation groove arranged on the first sliding sleeve (410) and the anti-rotation groove protruding on the The sliding bar which is fixed part and is slidably matched with the anti-rotation groove. 7. The constant temperature and water stop device with switching function according to claim 1, characterized in that: the second sliding sleeve (510) is provided with a sealing part (511), and the width of the sealing part (511) is smaller than that of the first step. The width of the water hole (140), the fixed part has a first side (151) and a second side (152) on both sides of the first water hole (140), the sealing part (511) and the first side (151) are sealed and fitted, the sealing part (511) is sealed and fitted with the second side part (152), and when the sealing part (511) is facing the first water hole (140), the second water hole (140) is respectively made The second water outlet (130) is connected, the second water hole (140) is connected with the first water outlet (120), and the second water hole (140) is connected with the second water outlet at the same time. 8. The constant temperature and water stop device with switching function according to claim 7, characterized in that: the sealing part (511) is located at the end of the second sliding sleeve (510), and the second sliding sleeve (510) also A through hole (512) adjacent to the sealing part (511) is provided, and when the sealing part (511) and the first side part (151) are sealed and matched, the second water hole (140) flows through the through hole (512) and the first side part (151). The second water outlet (130) is connected. 9. The constant temperature and water stop device with switching function according to claim 1, characterized in that: the switching assembly also includes a switching knob (520) and a second transmission assembly, and the switching knob (520) is rotatably attached to the fixed part , the second transmission assembly connects the switching knob (520) and the second sliding sleeve (510), the switching knob (520) rotates and drives the second sliding sleeve (510) to slide back and forth through the second transmission assembly. 10. The constant temperature and water stop device with switching function according to claim 1, characterized in that: the fixed part includes a housing (161), a fixing sleeve (162), a bushing (163) and a fixing seat (164 ), the housing (161) is provided with the water inlet (110), the first water outlet (120) and the second water outlet (130), the fixed sleeve (162) is sleeved in the housing (161) and set There is the first water hole (140), the bushing (163) is fixedly sleeved in the fixed sleeve (162) and the bushing (163) is provided with the first water hole (140). The third water hole (165), the temperature sensing element (200) is set on the fixed seat (164), the fixed seat (164) is fixedly connected with the bushing (163), and the fixed seat (164) is also provided with the The through hole (166) through which the nozzle (110) is connected, the water stop assembly and the first sliding sleeve (410) are both slidably mounted in the bushing (163), and the second sliding sleeve (510) is slidably mounted in the fixed sleeve Between the barrel (162) and the housing (161).