阅读说明：本技术 可关式排冷水结构 (Structure for discharging cold water in a closable manner ) 是由 林泓鑫 于 2021-10-13 设计创作，主要内容包括：本发明提供了可关式排冷水结构,属于淋浴设备技术领域。它解决了排冷水功能使用不便的问题。本可关式排冷水结构,包括具有进水口和出水口的壳体,所述壳体内设置有感温组件,壳体的侧部还开设有排水孔,所述感温组件能检测壳体内介质温度的高低并移动,且感温组件移动后能使出水口和排水孔中的一个与所述进水口相连通,所述壳体的外侧还套设有呈筒状的启闭筒,所述感温组件与所述启闭筒之间具有启闭机构,所述启闭机构能在所述启闭筒周向旋转后带动所述感温组件移动并封堵所述排水孔。本可关式排冷水结构具有使用方便的优点。(The invention provides a closable cold water discharging structure, and belongs to the technical field of shower equipment. It has solved the inconvenient problem of row cold water function. This can close formula row cold water structure, including the casing that has water inlet and delivery port, be provided with temperature sensing component in the casing, the wash port has still been seted up to the lateral part of casing, temperature sensing component can detect the height and the removal of medium temperature in the casing, and temperature sensing component removes and enables one in delivery port and the wash port and the water inlet is linked together, the outside of casing still overlaps and is equipped with the section of thick bamboo of opening and close that is the tube-shape, temperature sensing component with open and close and have the starting and stopping mechanism between the section of thick bamboo, starting and stopping mechanism can drive after opening and closing a section of thick bamboo circumferential direction the temperature sensing component removes and the shutoff the wash port. The closable cold water discharging structure has the advantage of convenient use.)

1. Can close formula row cold water structure, including casing (1) that has water inlet (11) and delivery port (12), be provided with temperature sensing subassembly (2) in casing (1), its characterized in that, wash port (13) have still been seted up to the lateral part of casing (1), temperature sensing subassembly (2) can detect the height and the removal of medium temperature in casing (1), and temperature sensing subassembly (2) remove after can make one in delivery port (12) and wash port (13) with water inlet (11) are linked together, the outside of casing (1) still overlaps and is equipped with and opens and close a section of thick bamboo (3) that are the tube-shape, temperature sensing subassembly (2) with open and close and have an on-off mechanism between section of thick bamboo (3), on-off mechanism can drive after opening and close a section of thick bamboo (3) circumference temperature sensing subassembly (2) removal and shutoff wash port (13).

2. The closable cold water discharge structure according to claim 1, wherein the open/close mechanism comprises an adjusting portion (4) disposed on the temperature sensing assembly (2), an adjusting surface (31) disposed on the open/close cylinder (3), and a limiting portion (32) disposed on the open/close cylinder (3) or the housing (1), the adjusting part (4) penetrates out of the side part of the shell (1), the position of the adjusting surface (31) corresponds to the position of the adjusting part (4), the adjusting surface (31) is obliquely arranged relative to the axis of the opening and closing cylinder (3), when the opening and closing cylinder (3) rotates in the circumferential direction, the adjusting part (4) can move along the adjusting surface (31) and drive the temperature sensing component (2) to move, and the limiting part (32) can limit the moved adjusting part (4) when the drain hole (13) is blocked.

3. The structure of claim 2, wherein the adjusting portion (4) comprises an opening and closing spring (41) and an adjusting column (42), a guide cover (5) is fixed on the side portion of the housing (1), an adjusting hole is formed in the position, corresponding to the adjusting column (42), of the guide cover (5) in a penetrating mode, the adjusting column (42) penetrates through the guide cover (5) under the action of the elastic force of the opening and closing spring (41), the limiting portion (32) comprises a concave hole located on the inner side of the opening and closing cylinder (3), and the outer end of the adjusting column (42) can extend into the concave hole.

4. A closable cold water discharge structure according to claim 2 or 3, wherein the inside of the open/close cylinder (3) has a ring-shaped protruding ring (33) protruding around its axis, the side surface of the adjusting portion (4) is adjacent to or abuts against the end surface of the protruding ring (33), one end of the protruding ring (33) close to the adjusting portion (4) has a protruding protrusion (34), and the adjusting surface (31) is located on one side of the protrusion (34) and is in arc transition with the end surface of the protruding ring (33).

5. A closable cold water discharge structure according to claim 2 or 3, wherein the inner wall of the opening and closing cylinder (3) has a spiral groove recessed in a spiral shape around its axis, the adjusting surface (31) is a side wall of the spiral groove, and the outer end of the adjusting portion (4) extends into the spiral groove and abuts against the adjusting surface (31).

6. A closable cold water discharge structure according to claim 2 or 3, wherein the opening and closing cylinder (3) is axially fixed to the housing (1), and the inner sides of the two ends of the opening and closing cylinder (3) are sealed with the outer side of the housing (1) by sealing rings, and the adjusting part (4) is located between the two sealing rings.

7. The structure of claim 1, 2 or 3, wherein the housing (1) is cylindrical, the water inlet (11) and the water outlet (12) are respectively located at two ends of the housing (1), the temperature sensing assembly (2) comprises a temperature sensing element (21), a switch member (22) which is cylindrical and is sleeved outside the temperature sensing element (21), and an elastic member (23), the switch member (22) is fixed to the temperature sensing element (21), the switch member (22) can move under the elastic force of the elastic member (23) and block the water inlet (11) and the water outlet (12), and the temperature sensing element (21) can drive the switch member (22) to move and block the water inlet (11) and the water outlet (13) after detecting the temperature rise of a medium in the housing (1).

8. A closable cold water discharge structure according to claim 7, wherein a limiting seat (14) is provided in the housing (1) near the water outlet (12), a water through opening (15) through which water can flow is formed between the outer side of the limiting seat (14) and the inner wall of the housing (1), and the switch member (22) can approach the limiting seat (14) under the elastic force of the elastic member (23) and form a seal with the limiting seat (14).

9. A closable cold water discharge structure according to claim 8, wherein the side of the limiting seat (14) facing the water inlet (11) is provided with a concave limiting hole (16), the temperature sensing element (21) is provided with a convex rod-shaped expansion part (24), and the end of the expansion part (24) is abutted against the bottom of the limiting hole (16) under the elastic force of the elastic member (23).

10. The closable cold water discharge structure according to claim 7, wherein the temperature sensing element (21) has a protruding stop shoulder (25) on the outer side near the water inlet (11), the temperature sensing element (21) has a stop ring (6) screwed on the outer side near the water outlet (12), the inner wall of the switch member (22) has a protruding annular shoulder (26), and the shoulder (26) extends between the stop ring (6) and the stop shoulder (25).

Technical Field

The invention belongs to the technical field of shower equipment, and relates to a closable cold water discharging structure.

Background

The shower is the most common shower equipment in people's daily life, and along with the continuous improvement of people's standard of living, to the travelling comfort of shower process and convenience demand higher and higher. For example, in winter, although most of users have water heaters in their homes, a large amount of cold water is left in a pipeline from the water heater to a shower, and people often need to drain the water in advance before taking a shower, drain the cold water left in the pipeline, and judge whether the shower is suitable or not by continuously and manually trying the temperature of the discharged water, which is inconvenient to use. And some users may be in the cold water, because of the wrong water route of water outlet choose and lead to cold water to drench on user's body directly, use convenience and travelling comfort are relatively poor.

Therefore, people have designed a control valve and a switching valve device with cold water discharging function, and have applied for Chinese patent, the application number of which is: 201510022883.0, respectively; the bulletin number is: CN 105840908B; the control valve and switching valve device with the cold water discharging function comprises a valve body part, a valve body part and a control valve, wherein the valve body part is provided with a water inlet and a water outlet; the piston can be connected in the valve body part in a sliding mode, and the sliding direction is the X direction; the sliding pipe is connected in the valve body part in a sealing and sliding mode along the X direction; the temperature sensing part can sense the temperature of water flowing through the valve body part to generate deformation, and the temperature sensing part can prop against the piston through the deformation to generate propping force for opening the on-off channel; the handle mechanism is movably connected to the valve body part and is in transmission connection with the sliding pipe so as to be capable of driving the sliding pipe to slide through the handle mechanism. In the control valve and the switching valve device with the cold water discharging function, the temperature sensing part senses the temperature of water flow to control the on-off of water discharging through deformation, and when the cold water is discharged, the water temperature rises, the water discharging is stopped, and a more visual prompt is provided for a user.

However, when the control valve and the switching valve device with the cold water discharging function are used, if cold water is discharged all the time, a stable cold water discharging state can be maintained all the time, if hot water is required to be used, the water discharging is automatically stopped after cold water remained in the pipeline is discharged, and a user needs to manually operate the handle again to discharge the hot water, so that the use is not convenient enough.

Disclosure of Invention

The invention aims to provide a closable cold water discharging structure aiming at the problems in the prior art, and solves the problem of inconvenient use of the cold water discharging function.

The purpose of the invention can be realized by the following technical scheme:

the closable cold water discharging structure comprises a shell with a water inlet and a water outlet, wherein a temperature sensing assembly is arranged in the shell, and the closable cold water discharging structure is characterized in that a water discharging hole is formed in the side portion of the shell, the temperature sensing assembly can detect the temperature of a medium in the shell and move, one of the water outlet and the water discharging hole is communicated with the water inlet after moving, a cylindrical opening and closing barrel is further sleeved on the outer side of the shell, an opening and closing mechanism is arranged between the temperature sensing assembly and the opening and closing barrel, and the opening and closing mechanism can drive the temperature sensing assembly to move and plug the water discharging hole after the opening and closing barrel rotates circumferentially.

The closeable cold water discharging structure can be connected into a pipeline of shower equipment or the shower equipment for use, and when the closeable cold water discharging structure is used, the temperature sensing assembly detects the temperature of a medium entering the shell and enables one of the water outlet and the water discharging hole to be communicated with the water inlet. For example, when the temperature is lower, the temperature sensing assembly enables the drain hole to be communicated with the water inlet and closes the water outlet, and the liquid medium is drained from the drain hole; when the temperature is higher, the temperature sensing assembly moves to enable the water inlet to be communicated with the water outlet and close the drain hole, and the liquid medium flows out of the water outlet to the water outlet of the shower device to discharge water. When only cold water is used in summer and the like, the opening and closing cylinder can be rotated, the opening and closing mechanism is used for actively driving the temperature sensing assembly to move and block the drain hole, and at the moment, the liquid medium entering the closable cold water discharging structure can directly flow out from the water outlet and is not controlled any more.

In this can close formula row cold water structure, set up two water routes of mutually independent play water and drainage, in autumn and winter season, utilize temperature sensing assembly's autonomic detection to remove and come one of them water route of automatic gating, discharge the cold water in the pipeline automatically alone, need not other operation, convenient to use. And in summer, can manually rotate and open and close a section of thick bamboo and close the row's of cold water function, only need once adjust can satisfy long-time use, the more convenient to use. In addition, the closeable cold water discharging structure can be installed at any position in the pipeline according to requirements when in use, and can be installed at a position convenient for operation according to different users or use places.

In the above-mentioned closable cold water discharge structure, the opening and closing mechanism includes an adjusting portion disposed on the temperature sensing assembly, an adjusting surface located on the opening and closing cylinder, and a limiting portion located on the opening and closing cylinder or the housing, the adjusting portion penetrates out from a side portion of the housing, a position of the adjusting surface corresponds to a position of the adjusting portion, and the adjusting surface is disposed in an inclined manner with respect to an axis of the opening and closing cylinder, when the opening and closing cylinder rotates circumferentially, the adjusting portion can move along the adjusting surface and drive the temperature sensing assembly to move, and the limiting portion can limit the adjusting portion after moving when the drain hole is plugged. The adjusting part is connected on the temperature sensing assembly through the cooperation of the adjusting surface that the slope set up, and at the in-process of opening and close a section of thick bamboo circumferential direction, convert circumferential direction's effort into the effort that makes the temperature sensing assembly remove gradually, compare in direct pulling temperature sensing assembly and remove, required effort is littleer, and accommodation process is lighter, and it is more convenient to use. The limiting part can prevent the temperature sensing assembly from resetting again after the drain hole is blocked, and the reliability and the stability of the function closing of the cold water draining are ensured.

In foretell formula row cold water structure of can closing, the regulating part is including opening and close the spring and adjusting the post, the casing lateral part is fixed with the direction lid, the direction cover with adjust post position department of correspondence and run through and seted up the regulation hole, it is in to adjust the post the spring action of opening and close the spring passes down part the direction lid, spacing portion is including being located open and close an inboard shrinkage pool, the outer end of adjusting the post can stretch into in the shrinkage pool. The setting of direction lid, the lateral wall of accessible regulation hole comes to provide the direction to the removal of adjusting the post, avoids adjusting the post and takes place the skew, guarantees to open and close a smooth and easy that a section of thick bamboo removed with opening and close when opening and close a section of thick bamboo circumferential direction, convenient regulation.

In the above-mentioned closable cold water discharge structure, the inner side of the opening and closing cylinder is provided with a convex ring which is convex and annular around the axis thereof, the side surface of the adjusting part is arranged adjacent to or abutted against the end surface of the convex ring, one end of the convex ring close to the adjusting part is provided with a convex part, and the adjusting surface is positioned on one side of the convex part and is in arc transition with the end surface of the convex ring. The outer side face of the shell is abutted to limit through the annular convex ring, the opening and closing of the barrel is avoided, the adjusting face is arranged on one side of the protruding portion, the adjusting portion can move quickly to close the drain hole when moving to the protruding portion, the operation time is short, and opening and closing are quick.

As another condition, in the above structure for discharging cold water in a closable manner, the inner wall of the opening and closing cylinder has a spiral groove recessed in a spiral shape around the axis thereof, the adjusting surface is a side wall of the spiral groove, and the outer end of the adjusting portion extends into the spiral groove and abuts against the adjusting surface. The side wall of the spiral groove drives the adjusting part to move, the adjusting force requirement is small, and the rotation is easier.

In the above-mentioned structure for discharging cold water in a closable manner, the opening and closing cylinder is axially fixed to the housing, the inner sides of both ends of the opening and closing cylinder and the outer side of the housing are sealed by sealing rings, and the adjusting portion is located between the two sealing rings. The sealing effect is guaranteed through the sealing rings at the two ends, and the medium at the moving position of the adjusting part is prevented from leaking out of the opening and closing cylinder after seeping.

In the above-mentioned structure for discharging cold water in a closable manner, the casing is in a cylindrical shape, the water inlet and the water outlet are respectively located at two ends of the casing, the temperature sensing assembly includes a temperature sensing element, a switch member and an elastic member, the switch member is in a cylindrical shape and is sleeved on the outer side of the temperature sensing element, the switch member is fixed to the temperature sensing element, the switch member can move under the elastic action of the elastic member and block the space between the water inlet and the water outlet, and the temperature sensing element can drive the switch member to move and block the space between the water inlet and the water drain hole after detecting the temperature of a medium in the casing rises. The water temperature detection and the automatic water path selection are realized through the matching of the elastic piece and the temperature sensing element, the additional operation is not needed, and the use is more convenient.

In the above structure, a position-limiting seat is provided in the housing near the water outlet, a water passing opening through which water can flow is formed between the outer side of the position-limiting seat and the inner wall of the housing, and the switch member can be close to the position-limiting seat under the elastic force of the elastic member and form a seal with the position-limiting seat.

In the above-mentioned structure for discharging cold water in a closable manner, a concave limiting hole is formed in one side of the limiting seat facing the water inlet, a rod-shaped protruding telescopic part is formed on the temperature sensing element, and the end of the telescopic part abuts against the bottom of the limiting hole under the elastic force of the elastic part.

In the above structure, the outer side of the temperature sensing element near the water inlet is provided with a protruding limit stop shoulder, the outer side of the temperature sensing element near the water outlet is connected with a limit ring through a thread, the inner wall of the switch member is provided with a protruding annular shoulder, and the protruding shoulder extends between the limit ring and the limit stop shoulder. The limiting ring matched with the limiting blocking shoulder through threaded connection fixes the switch piece, machining errors can be effectively avoided, the stability of fixing the temperature sensing element and the switch piece is guaranteed, meanwhile, the temperature sensing element or the switch piece is convenient to disassemble, maintain and replace, and the application range is wide.

Compared with the prior art, the structure for discharging the cold water in the closed mode has the following advantages:

1. when the closeable cold water discharging structure is used, one of the water ways is automatically gated by the automatic detection movement of the temperature sensing assembly in autumn and winter, cold water in the pipeline is automatically discharged, additional operation is not needed, and the closeable cold water discharging structure is convenient to use. And in summer, can manually rotate and open and close a section of thick bamboo and close the row's of cold water function, only need once adjust can satisfy long-time use, the more convenient to use.

2. The water outlet and the water outlet are independent, so that cold water and hot water are not related, a user is prevented from being wetted, and the hot water outlet state is visible and more visual.

3. When the closeable cold water discharging structure is used, the cylindrical shell can be conveniently connected to any position in a pipeline, and can be installed at a position convenient to operate according to different users or using places, so that the closeable cold water discharging structure is wide in application range and convenient to use.

Drawings

Fig. 1 is a schematic sectional view of the structure of the present closable cold water discharge structure.

FIG. 2 is a schematic sectional view of the structure of the closable cold water discharge structure for closing the cold water discharge function

FIG. 3 is a schematic cross-sectional view of an opening and closing cylinder in the structure of draining cold water in a closable manner.

In the figure, 1, a housing; 11. a water inlet; 12. a water outlet; 13. a drain hole; 14. a limiting seat; 15. a water outlet; 16. a limiting hole; 2. a temperature sensing assembly; 21. a temperature sensing element; 22. a switch member; 23. an elastic member; 24. a telescopic part; 25. a limiting shoulder; 26. a shoulder is formed; 3. opening and closing the cylinder; 31. adjusting the surface; 32. a limiting part; 33. a convex ring; 34. a projection; 4. an adjustment section; 41. opening and closing the spring; 42. an adjustment column; 5. a guide cover; 6. a limit ring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and 2, the closable cold water discharging structure includes a cylindrical housing 1, two ports of the housing 1 are a water inlet 11 and a water outlet 12, respectively, and a water passage communicating the water inlet 11 and the water outlet 12 is provided in the housing 1. The lateral part of the shell 1 is also provided with a drain hole 13 communicated with the water passing channel in a penetrating way, the drain hole 13 is communicated to the outer side of the shell 1 through a drain channel independent from the water passing channel, and the outlet of the drain channel is provided with a water outlet part for connecting a pipeline.

A limiting seat 14, a temperature sensing assembly 2 and a sealing part which are fixed with the shell 1 are sequentially arranged in the shell 1 from the water outlet 12 to the water inlet 11. The water passing channel comprises a water passing port 15 which is formed between the outer side of the limiting seat 14 and the inner wall of the shell 1 and through which water can flow; the temperature sensing unit 2 includes a temperature sensing element 21 having a rod-shaped projecting and expanding portion 24, a cylindrical opening and closing member 22 provided coaxially with the housing 1, and an elastic member 23. One end of the limit seat 14 facing the switch piece 22 is provided with a second annular sealing piece, and when the switch piece 22 moves towards the water outlet 12 under the action of the elastic force of the elastic piece 23, the end part of the switch piece 22 can abut against the second annular sealing piece and seal between the switch piece 22 and the limit seat 14. Meanwhile, a first annular sealing element is fixed on the outer side of one end, close to the water outlet 12, of the switch piece 22, and the first annular sealing element enables the outer side of the switch piece 22 and the inner wall of the shell 1 to form sealing, so that when the switch piece 22 abuts against a second sealing element under the elastic action of the elastic element 23, the water passing port 15 of the water passing channel is sealed through the sealing of the first sealing element and the second sealing element, and the water inlet 11 cannot be communicated with the water outlet 12. A water passing gap through which water flows is formed between the inner side of the opening and closing member 22 and the outer side of the temperature sensing element 21.

One side of the limiting seat 14 facing the water inlet 11 is provided with a concave limiting hole 16, the end of the expansion part 24 extends into the limiting hole 16, and the end of the expansion part 24 is abutted against the bottom of the limiting hole 16 under the elastic force of the elastic part 23. The temperature sensing element 21 is arranged in the switch member 22 in a penetrating manner, the outer side of one end, close to the water inlet 11, of the temperature sensing element 21 is provided with a protruding annular limiting retaining shoulder 25, the outer side, close to one end of the water outlet 12, of the temperature sensing element 21 is connected with a limiting ring 6 in an annular mode through threads, the inner wall of the switch member 22 is provided with a protruding annular shoulder 26 in a protruding manner, the shoulder 26 extends into the space between the limiting ring 6 and the limiting retaining shoulder 25, and when the limiting ring 6 is screwed in along the threads, the shoulder 26 can be tightly pressed on the limiting retaining shoulder 25, so that the switch member 22 and the temperature sensing element 21 are fixed. When the temperature sensing element 21 senses that the temperature of a medium in the water channel rises to a set value, the telescopic part 24 of the temperature sensing element 21 is pushed out, the limiting seat 14 is fixed in the shell 1, the temperature sensing element 21 drives the switch piece 22 to move towards the direction of the sealing part until the end part of the switch piece 22 abuts against the sealing part and forms sealing, and the drain hole 13 can be blocked by the sealing part and the sealing part at the moment because the drain hole 13 is arranged between the sealing part and the sealing part I in the axial direction of the shell 1. In this embodiment, the elastic member 23 is a tower spring, and two ends thereof respectively abut against the housing 1 and the temperature sensing element 21; the temperature sensing element 21 can be a paraffin temperature sensing bulb or an SMA temperature sensing bulb; the sealing part comprises a circular sealing seat fixed with the shell 1 and a circular sealing ring fixed on the sealing seat, and the tower spring is arranged in the sealing seat in a penetrating way.

This can close formula row cold water structure can be applied to water outlet mechanism department such as handheld gondola water faucet, top spout among the shower equipment, specifically can regard as the structure of joint to the threaded connection structure at casing 1 both ends connects in pipeline or the hand-held gondola water faucet or the end of intaking that the top spouts. And the water outlet part of the drainage channel can be directly connected to floor drain drainage through a pipeline or connected to a cold water pipe for recycling.

In the weather with lower temperature such as autumn and winter, when the shower equipment needs to be used, the faucet is turned on, water flow firstly enters the shell 1 of the closeable cold water discharging structure, the temperature of the water flow remained in the pipeline is lower, the temperature sensing element 21 does not extend out, and the switch piece 22 is abutted against the second sealing piece under the elastic force action of the elastic piece 23, so that the water inlet 11 and the water outlet 12 are blocked. At the same time, the switch member 22 is moved away from the sealing seat, so that the drain hole 13 is opened and the cold water is discharged through the drain hole 13 without entering the shower apparatus.

When water with higher temperature in the water heater enters the shell 1, the temperature sensing element 21 expands to drive the switch piece 22 to move towards the water inlet 11 under the action of the elastic force of the elastic piece 23 until the switch piece abuts against the sealing part and blocks the drain hole 13, at the moment, the other end of the switch piece 22 leaves the second sealing piece, the water outlet 15 is opened, and hot water can flow into the shower equipment from the water outlet 12 for showering of a user.

However, in the case where cold water is required in summer or the like, the function of discharging cold water needs to be turned off.

The outer side of the shell 1 is further sleeved with a cylindrical opening and closing barrel 3, the opening and closing barrel 3 is axially fixed with the shell 1, the inner sides of two ends of the opening and closing barrel 3 are sealed with the outer side of the shell 1 through a sealing ring, an opening and closing mechanism is arranged between the temperature sensing assembly 2 and the opening and closing barrel 3, and the opening and closing mechanism can drive the temperature sensing assembly 2 to axially move and position after the opening and closing barrel 3 rotates in the circumferential direction and then plugs the drain hole 13.

Specifically, the opening and closing mechanism includes an adjusting portion 4 disposed on the temperature sensing assembly 2, an adjusting surface 31 located on the opening and closing cylinder 3, and a limiting portion 32 located on the opening and closing cylinder 3 or the housing 1, the adjusting portion 4 penetrates through an opening in a side portion of the housing 1, an axial width of the opening in the housing 1 is greater than a width of the adjusting portion 4 in an axial direction of the housing 1, and the adjusting portion 4 is located between two sealing rings. The position of the adjusting surface 31 corresponds to the position of the adjusting part 4, the adjusting surface 31 is obliquely arranged relative to the axis of the opening and closing cylinder 3, when the opening and closing cylinder 3 rotates circumferentially, the adjusting part 4 can move along the adjusting surface 31 and drive the temperature sensing component 2 to move, and the limiting part 32 can limit the adjusting part 4 when the drain hole 13 is blocked

In this embodiment, switch member 22 outside among the temperature sensing subassembly 2 has recessed regulation shrinkage pool, regulation portion 4 is including setting up opening and close spring 41 and being cylindrical regulation post 42 in adjusting the shrinkage pool, the casing 1 lateral part is fixed with direction lid 5 through the fastener, this direction lid 5 goes up and has run through with regulation post 42 position department of correspondence and has seted up the regulation hole, regulation post 42 has the protrusion towards the one end outside of opening and close spring 41 and is annular fender edge, regulation post 42 passes direction lid 5 and supports to lean on the inner wall of opening and close a section of thick bamboo 3 under the spring action of opening and close spring 41. The inner side of the opening and closing cylinder 3 is provided with a convex annular convex ring 33 around the axis thereof, the side surface of the adjusting column 42 is adjacent to or abutted against the end surface of one end of the convex ring 33, which is close to the adjusting part 4, is provided with a convex part 34, the two sides of the convex part 34 are both the adjusting surfaces 31, and the adjusting surfaces 31 and the convex ring 33 are in arc transition. The limiting part 32 comprises a concave hole located on the inner side of the opening and closing cylinder 3, the concave hole is adjacent to the convex direction of the convex part 34, when the adjusting column 42 moves to the highest point of the convex part 34 along the adjusting surface 31, the outer end of the adjusting column 42 can stretch into the concave hole, and limiting of the adjusting column 42 is achieved. In order to ensure that the post 42 can be moved out conveniently after the position limitation, the concave hole, the side wall and the outer end of the post 42 are all arc-shaped. In order to ensure the stability of the axial movement of the temperature sensing assembly 2, the number of the adjusting portions 4 is at least two and the adjusting portions are respectively arranged on two opposite sides of the temperature sensing assembly 2.

In summer, the opening and closing cylinder 3 can be rotated to move to the position of the adjusting surface 31 along the end surface of the convex ring 33 through the adjusting column 42 and move to the highest point of the convex part 34 through the obliquely arranged adjusting surface 31, and the adjusting column 42 is limited by extending out and clamping in the concave hole under the action of the elastic force of the opening and closing spring 41. In the moving process of the adjusting column 42, the switch piece 22 and the temperature sensing element 21 are driven to move towards the direction far away from the limiting seat 14 and move towards the water inlet 11 until the end part of the switch piece 22 abuts against the sealing seat to block the drain hole 13, at the moment, the drain hole 13 is always in a closed state, and the function of the closed cold water discharging structure is equivalent to a joint, and the water discharging control is not switched according to the change of the temperature of a medium in the shell 1.

Example two

The technical solution of the present embodiment is substantially the same as that of the first embodiment, except that: the opening and closing mechanism comprises an adjusting part 4 penetrating through the side part of the shell 1 and a spiral groove which is arranged on the inner wall of the opening and closing barrel 3 and is formed around the axis of the opening and closing barrel 3, an adjusting surface 31 is the side wall of the spiral groove, an adjusting column 42 in the adjusting part 4 extends into the spiral groove under the elastic action of an opening and closing spring 41, the width of the spiral groove is slightly larger than the width of the outer end of the adjusting column 42, and a limiting part 32 is a concave hole formed in the bottom of the spiral groove.

The temperature sensing assembly 2 can comprise a temperature sensor, a valve core, a spring and a driving motor capable of driving the valve core to move along the axial direction of the shell 1, the driving motor can be a linear motor, the output end of the driving motor is not fixed with the valve core but abutted against the valve core, the driving motor realizes the control of the water path switching action of the valve core back and forth by matching the temperature of a medium detected by the temperature sensor with the spring, and the adjusting part 4 can be arranged on the valve core and also can drive the valve core to move to close the drain hole 13 through the opening and closing mechanism.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.