CN108036061A - One kind is without electric control temperature bathtub - Google Patents
One kind is without electric control temperature bathtub Download PDFInfo
- Publication number
- CN108036061A CN108036061A CN201810098730.8A CN201810098730A CN108036061A CN 108036061 A CN108036061 A CN 108036061A CN 201810098730 A CN201810098730 A CN 201810098730A CN 108036061 A CN108036061 A CN 108036061A
- Authority
- CN
- China
- Prior art keywords
- liquid
- temperature
- electric control
- shape memory
- memory alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K3/00—Baths; Douches; Appurtenances therefor
- A47K3/02—Baths
- A47K3/022—Baths specially adapted for particular use, e.g. for washing the feet, for bathing in sitting position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
Abstract
The present invention discloses one kind without electric control temperature bathtub, including：For storing water tank, the basin body for storing second liquid and the core assembly for the first liquid to be delivered to basin body of the first liquid；First liquid and second liquid are there are temperature difference, and the water level of the first liquid is higher than second liquid；The core assembly includes a shape memory alloy spring, it is threshold value A that the shape memory alloy spring heat, which stretches shrinkage critical-temperature, when second liquid temperature departure threshold value A in basin body, the shape memory alloy spring drives the fluid passage of the core assembly to be turned on and off, so as to control the temperature of second liquid in basin body to be fluctuated near threshold value A.Presence of the invention based on temperature difference, by the unique design of core assembly, first fluid gap formula is added in second liquid, fluctuated so that the temperature of second liquid is stretched in shape memory alloy spring heat near the critical-temperature of shrinkage, the temperature of second liquid needed for obtaining, electronic component is eliminated, realizes mechanical temperature control type.
Description
Technical field
The present invention relates to bathtub water temperature control technology field, and more particularly to one kind is without electric control temperature bathtub.
Background technology
Bathtub, for example, foot bath etc. needs the immersion field of certain temperature range, it is often necessary to be subject to temperature controller
Structure, conventional temperature control are related to increase heating structure mostly, for example, lavipeditum disclosed in Chinese patent CN201610144767.0
Basin is then with heating unit, this foot bath complex structural designs, moreover, easily causing the erosion of aqueous vapor to cause using electrical heating
Electronic component failure, particularly in moist south, this is high for the waterproof requirement of bathtub, otherwise virtually increase product
Cost, or allow for bathtub easily by aqueous vapor corrode and the service life is not grown.
The content of the invention
In view of the problems of the existing technology, the present invention provides a kind of without electric control temperature bathtub, saves the control of electronic component
Temperature.
To achieve the above object, concrete technical scheme of the invention is as follows：
One kind without electric control temperature bathtub, including：For storing water tank, the basin for storing second liquid of the first liquid
Body and the core assembly for the first liquid in water tank to be delivered to basin body；First liquid and second liquid there are temperature difference,
And first liquid water level be higher than second liquid water level；The core assembly includes a shape memory alloy spring, shape note
It is threshold value A to recall alloy spring heat to stretch shrinkage critical-temperature, when second liquid temperature departure threshold value A in basin body, the shape memory
Alloy spring drives the fluid passage of the core assembly to be turned on and off, so as to control the temperature of second liquid in basin body in threshold value
A is nearby fluctuated.
Based on the thought of the present invention, one, which is applied, is：The temperature of first liquid is higher than the situation of the temperature of second liquid, this
When, when the temperature of second liquid in basin body is less than threshold value A, elastic body driving block head opens the outlet of fluid passage；
When the temperature of second liquid in basin body is higher than threshold value A, the outlet of elastic body driving block head closure fluid passage.
Based on the thought of the present invention, its another application is：The temperature of first liquid is less than the situation of the temperature of second liquid,
At this time, when the temperature of second liquid in basin body is higher than threshold value A, elastic body driving block head opens going out for fluid passage
Mouthful；When the temperature of second liquid in basin body is less than threshold value A, the outlet of elastic body driving block head closure fluid passage.
Corresponding to the different application of above two, core assembly of the invention includes：
One stent, it is equipped with the fluid passage for being connected to water tank；
One block head, its head can be blocked with the outlet of the fluid passage to be coordinated；
One elastic body, which accommodates the shape memory alloy spring, and is connected with closure head-tail, in shape
Block head closure is driven under the driving of shape memory alloys spring or opens the outlet of fluid passage；
One valve overcoat, for the core assembly miscellaneous part to be fixed wherein.
Further, in above application one, which includes：
One cover frame, it includes a fixed plate and the tapped cylinder ring arranged on fixed plate one side with holes, the circle
In the band of column annular groove of the size less than the cylinder ring is equipped with close to fixed plate；
One compression spring, one end in contact annular groove bottom；
One push rod, its one end sequentially pass through the compression spring, cover frame, are connected with closure head-tail, on the push rod also
Equipped with annular baffle, its one side is used for the other end for keeping out compression spring, which is equipped with sliding slot in the axial direction；
One shape memory alloy spring, its one end are used for the another side for abutting annular baffle；
One core cap, its T-shaped construction, push rod sliding slot is inserted at its perpendicular end and opposite sliding slot slides, its horizontal end is used to abut shape
The other end of shape memory alloys spring, and its horizontal end is external thread structure, is connected with cylinder ring internal thread.
Further, in above application two, the elastic body and the difference of application one, only remember compression spring and shape
Recall the displacement of alloy spring position.
Further, the shape memory alloy spring material is Nitinol, and threshold value A is 45 DEG C.
Further, this further includes a temperature gear adjusting mechanism, its one end end top horizontal with core cap without electric control temperature bathtub
Connection, for adjusting the spacing size of block head and liquid channel outlet manually.
Further, which includes a swingle and a rotary switch, swingle one end insertion
Valve overcoat is connected at the top of end horizontal with core cap, and the other end extends valve overcoat and is connected with rotary switch.
Further, this further includes a thermometer without electric control temperature bathtub, for showing the temperature of second liquid in basin body.
Technical solution using the present invention, has the advantages that：
Presence based on temperature difference, by the unique design of core assembly, the second liquid is added to by the first fluid gap formula
In body so that the temperature of second liquid is stretched in shape memory alloy spring heat to be fluctuated near the critical-temperature of shrinkage, needed for acquisition
Second liquid temperature, eliminate electronic component, realize mechanical temperature control type.
Brief description of the drawings
Fig. 1 is the stereogram of the embodiment of the present invention one；
Fig. 2 is water tank explosive view in the embodiment of the present invention one；
Fig. 3 is the top view of core assembly and temperature gear adjusting mechanism in the embodiment of the present invention one；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the stereogram of core assembly in the embodiment of the present invention one；
Fig. 6 is the sectional view of Fig. 5；
Fig. 7 is the explosive view of Fig. 5.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
The present invention provides one kind without electric control temperature bathtub, including：For storing the water tank of the first liquid, for storing second
The basin body of liquid and the core assembly for the first liquid in water tank to be delivered to basin body；First liquid is deposited with second liquid
In temperature difference, and the water level of the first liquid is higher than the water level of second liquid；The core assembly includes a shape memory alloy spring,
It is threshold value A that the shape memory alloy spring heat, which stretches shrinkage critical-temperature,, should when second liquid temperature departure threshold value A in basin body
Shape memory alloy spring drives the fluid passage of the core assembly to be turned on and off, so as to control the temperature of second liquid in basin body
Degree fluctuates near threshold value A.
Based on elaboration above, same design of the present invention includes two kinds of forms：First, the first fluid temperature is higher than the second liquid
Body；First, the first fluid temperature is less than second liquid.The first form is similar to constantly heating water process, the second form and is similar to
Continuous water on the rocks or water at low temperature process, the principle of the two communicate, and expansion in detail below illustrates.
Embodiment 1
The temperature of first liquid is higher than the situation of the temperature of second liquid, at this time, when the temperature of second liquid in basin body is low
When threshold value A, elastic body driving block head opens the outlet of fluid passage；When the temperature of second liquid in basin body is higher than threshold
During value A, the outlet of elastic body driving block head closure fluid passage.
Specifically, with reference to shown in Fig. 1 and Fig. 2, this includes without electric control temperature bathtub：High-order water tank 1, the basin body 2 of low level,
And core assembly 3 therebetween.
Wherein, water tank 1 includes：One water pot 11, a water tank lid 12, one enter water plug 13, and 11 bottom of water pot is equipped with water outlet
111, the top of water tank lid 12 is equipped with water inlet 121, enters the unpacking of water plug 13 water inlet 121；The water tank 1 is integrally attached to basin body
Top in 2, forms certain difference in height, and the first liquid be conducive in water tank 1 is flowed into basin body 2.
With reference to Fig. 3 to Fig. 7, which includes：
One stent 31, it is equipped with the fluid passage 311 for being connected to 1 water outlet 111 of water tank；
One block head 32, its head can be blocked with the outlet of the fluid passage 311 to be coordinated；
One elastic body 33, which accommodates the shape memory alloy spring, and connects with 32 afterbody of block head
Connect, drive block head 32 to block or open the outlet of fluid passage 311 under the driving of shape memory alloy spring；
One valve overcoat 34, for 3 miscellaneous part of core assembly to be fixed wherein.Herein, with reference to Fig. 1 and Fig. 2, valve overcoat
34 are arranged among basin body 2, and the top of its one side is also contacted with water pot 11, to the weight of the load water pot 11.
With continued reference to Fig. 5 to Fig. 7, which includes：
One cover frame 331, it includes a fixed plate 331a with holes and arranged on the tapped of fixed plate 331a one sides
In cylinder ring 331b, the cylinder ring 331b annular groove of the size less than cylinder ring 331b is equipped with close to fixed plate 331a
331c；
One compression spring 332, one end in contact annular groove 331c bottoms；
One push rod 333, its one end sequentially pass through the compression spring 332, cover frame 331, are connected with 32 afterbody of block head,
Annular baffle 333a is additionally provided with the push rod 333, its one side is used for the other end for keeping out compression spring 332, and the push rod 333 is another
End is equipped with sliding slot 333b in the axial direction；
One shape memory alloy spring 334, its one end are used for the another side for abutting annular baffle 333a；
One core cap 335, its T-shaped construction, its perpendicular end insertion 333 sliding slot 333b of push rod and opposite sliding slot 333b slips, its
Horizontal end is used for the other end for abutting shape memory alloy spring 334, and its horizontal end is spiral shell in external thread structure, with cylinder ring 331b
Line connects.
334 material of shape memory alloy spring is Nitinol, and threshold value A is 45 DEG C.
This further includes a temperature gear adjusting mechanism 4 without electric control temperature bathtub, and its one end is connected with 335 horizontal end of core cap top,
The spacing size exported for adjusting block head 32 manually with fluid passage 311.
The temperature gear adjusting mechanism 4 includes a swingle 41 and a rotary switch 42,41 one end of swingle insertion valve
With being connected at the top of 335 horizontal end of core cap, the other end extends valve overcoat 34 and is connected with rotary switch 42 overcoat 34.
This further includes a thermometer 5 without electric control temperature bathtub, for showing the temperature of second liquid in basin body 2.With reference to figure 1 with
Fig. 3, the thermometer are arranged on the top of valve overcoat 34.
The course of work and principle of the embodiment of the present invention：
Boiling water is added in water tank 1 respectively, basin body 2 (foot bath) adds 37-39 DEG C of warm water, when foot bath water temperature is higher than
At 45 DEG C, top (according to orientation in actual use, direction to that indicated in the drawings is inverted) Nitinol in core assembly 3
Extended after spring 334 (shape memory alloy spring 334) is heated, compress the compression spring 332 of lower section, promote 32 (this of block head
Place, is set to piston) down move, the fluid passage 311 of core assembly 3 is closed, the hot water of water tank 1 can not add foot bath
In, when water temperature is less than 45 DEG C in foot bath, the top Nitinol spring 334 in core assembly 3 shortens after being cooled, lower section
Compression spring 332 promotes piston up to move the hot water opened in water tank 1, and hot water is automatically added in foot bath, can be by foot
The hot water temperature of bathtub is controlled between 40 DEG C -45 DEG C.
In the present invention, temperature control knob switchs 42 operation principles and is：There is a rotary switch 42 above foot bath, rotate
When, Nitinol spring 334 can be compressed by the helical rotation of core cap 335, so as to control piston and fluid passage 311
The size of outlet, and then the temperature that foot is steeped in foot bath can be controlled, it is divided into basic, normal, high three gears, can be applicable in such as difference
Crowd.
In the present invention, 5 operation principle of thermometer is：The temperature of water in foot bath passes through temp probe (not shown)
Thermometer Central Control Center is transmitted to by LCD display, shows the temperature of water outlet, precision reaches 0.1 DEG C, makes user straight
See, trust, safety.
Embodiment 2
The temperature of first liquid is less than the situation of the temperature of second liquid, at this time, when the temperature of second liquid in basin body is high
When threshold value A, elastic body driving block head opens the outlet of fluid passage；When the temperature of second liquid in basin body is less than threshold
During value A, the outlet of elastic body driving block head closure fluid passage.
This embodiment is with 1 difference of embodiment：The assembling of elastic body in the present embodiment, only by compression spring with
Replace shape memory alloy spring position.In addition, it is corresponding, because temperature is different, the material of its corresponding shape memory alloy spring
Matter is also corresponding to be changed, it is for instance possible to use Nitinol material, its threshold value A can be set as 20 DEG C, in this way, the first liquid can
To be set as frozen water, by constantly adding frozen water to second liquid, the temperature of second liquid is maintained near 20 DEG C, this water
The occasion that bath temperature condition, especially suitable summer etc. cools down needs.
The foregoing is merely the preferred embodiment of the present invention, is not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in the scope of patent protection of the present invention.
Claims (10)
1. one kind is without electric control temperature bathtub, it is characterised in that including：For storing the water tank of the first liquid, for storing second
The basin body of liquid and the core assembly for the first liquid in water tank to be delivered to basin body；First liquid is deposited with second liquid
In temperature difference, and the water level of the first liquid is higher than the water level of second liquid；The core assembly includes a shape memory alloy spring,
It is threshold value A that the shape memory alloy spring heat, which stretches shrinkage critical-temperature,, should when second liquid temperature departure threshold value A in basin body
Shape memory alloy spring drives the fluid passage of the core assembly to be turned on and off, so as to control the temperature of second liquid in basin body
Degree fluctuates near threshold value A.
2. no electric control temperature bathtub according to claim 1, it is characterised in that the core assembly includes：One stent, it is equipped with
It is connected to the fluid passage of water tank；
One block head, its head can be blocked with the outlet of the fluid passage to be coordinated；
One elastic body, which accommodates the shape memory alloy spring, and is connected with closure head-tail, remembers in shape
Recall the outlet that block head closure is driven under the driving of alloy spring or opens fluid passage；
One valve overcoat, for the core assembly miscellaneous part to be fixed wherein.
3. no electric control temperature bathtub according to claim 2, it is characterised in that the temperature of first liquid is higher than the second liquid
The temperature of body, when the temperature of second liquid in basin body is less than threshold value A, elastic body driving block head opens fluid passage
Outlet；When the temperature of second liquid in basin body is higher than threshold value A, elastic body driving block head closure fluid passage goes out
Mouthful.
4. no electric control temperature bathtub according to claim 3, it is characterised in that the elastic body includes：One cover frame, its
Including a fixed plate and the tapped cylinder ring arranged on fixed plate one side with holes, set in the cylinder ring close to fixed plate
There is the annular groove that a size is less than the cylinder ring；
One compression spring, one end in contact annular groove bottom；
One push rod, its one end sequentially pass through the compression spring, cover frame, are connected with closure head-tail, are additionally provided with the push rod
Annular baffle, its one side are used for the other end for keeping out compression spring, which is equipped with sliding slot in the axial direction；
One shape memory alloy spring, its one end are used for the another side for abutting annular baffle；
One core cap, its T-shaped construction, its perpendicular end insertion push rod sliding slot and opposite sliding slot slip, its horizontal end are used to abut shape note
Recall the other end of alloy spring, and its horizontal end is external thread structure, is connected with cylinder ring internal thread.
5. no electric control temperature bathtub according to claim 2, it is characterised in that the temperature of first liquid is less than the second liquid
The temperature of body, when the temperature of second liquid in basin body is higher than threshold value A, elastic body driving block head opens fluid passage
Outlet；When the temperature of second liquid in basin body is less than threshold value A, elastic body driving block head closure fluid passage goes out
Mouthful.
6. no electric control temperature bathtub according to claim 5, it is characterised in that the elastic body includes：One cover frame, its
Including a fixed plate and the tapped cylinder ring arranged on fixed plate one side with holes, set in the cylinder ring close to fixed plate
There is the annular groove that a size is less than the cylinder ring；
One shape memory alloy spring, one end in contact annular groove bottom；
One push rod, its one end sequentially pass through the shape memory alloy spring, cover frame, are connected with closure head-tail, the push rod
On be additionally provided with annular baffle, its one side is used to keep out the other end of shape memory alloy spring, which is equipped with along axis
The sliding slot in line direction；
One compression spring, its one end are used for the another side for abutting annular baffle；
One core cap, its T-shaped construction, push rod sliding slot is inserted at its perpendicular end and opposite sliding slot slides, its horizontal end is used to abut pressure bullet
The other end of spring, and its horizontal end is external thread structure, is connected with cylinder ring internal thread.
7. no electric control temperature bathtub according to claim 4, it is characterised in that the shape memory alloy spring material is nickel
Titanium alloy, threshold value A are 45 DEG C.
8. according to claim 4 or 6 without electric control temperature bathtub, it is characterised in that this without electric control temperature bathtub further include one temperature
Gear adjusting mechanism is spent, its one end is connected at the top of end horizontal with core cap, for adjusting manually between block head and liquid channel outlet
Away from size.
9. no electric control temperature bathtub according to claim 8, it is characterised in that the temperature gear adjusting mechanism includes a rotation
Bar and a rotary switch, the swingle one end are connected at the top of horizontal with the core cap end of insertion valve overcoat, the other end extend valve overcoat and
Rotary switch connects.
10. no electric control temperature bathtub according to claim 1, it is characterised in that this further includes a temperature without electric control temperature bathtub
Table, for showing the temperature of second liquid in basin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810098730.8A CN108036061A (en) | 2018-01-31 | 2018-01-31 | One kind is without electric control temperature bathtub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810098730.8A CN108036061A (en) | 2018-01-31 | 2018-01-31 | One kind is without electric control temperature bathtub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036061A true CN108036061A (en) | 2018-05-15 |
Family
ID=62097096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810098730.8A Pending CN108036061A (en) | 2018-01-31 | 2018-01-31 | One kind is without electric control temperature bathtub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036061A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2107829A (en) * | 1981-06-09 | 1983-05-05 | Dudley Vernon Steynor | Thermostatic valves, and solar water heating systems incorporating the same |
| CN2090904U (en) * | 1991-01-10 | 1991-12-18 | 中国科学技术大学 | Safety valve for hot water device |
| KR920005740Y1 (en) * | 1988-09-21 | 1992-08-21 | 박원근 | Thermal valve |
| CN2692430Y (en) * | 2004-01-03 | 2005-04-13 | 董元源 | Memory alloy antiscald valve |
| CN200986041Y (en) * | 2006-05-08 | 2007-12-05 | 涂其德 | Constant temperature water temperature controlling valve |
| KR20110134236A (en) * | 2010-06-08 | 2011-12-14 | 최일웅 | A valve for temperature and flow controlling |
| CN202852166U (en) * | 2012-11-07 | 2013-04-03 | 胡烈聪 | Temperature-sensing valve |
| CN203195561U (en) * | 2013-04-28 | 2013-09-18 | 上海工程技术大学 | Intelligent temperature-adjusting foot basin |
| CN104398181A (en) * | 2014-12-16 | 2015-03-11 | 杜志刚 | Non-electrical constant-temperature foot tub |
| JP2017190826A (en) * | 2016-04-13 | 2017-10-19 | 東芝キヤリア株式会社 | Two-way valve and hot water supply device |
| CN107397475A (en) * | 2016-05-22 | 2017-11-28 | 以凡泰行（深圳）实业有限公司 | Constant temperature bathtub |
| CN207945300U (en) * | 2018-01-31 | 2018-10-09 | 以凡泰行（深圳）实业有限公司 | A kind of no electric control temperature bathtub |
-
2018
- 2018-01-31 CN CN201810098730.8A patent/CN108036061A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2107829A (en) * | 1981-06-09 | 1983-05-05 | Dudley Vernon Steynor | Thermostatic valves, and solar water heating systems incorporating the same |
| KR920005740Y1 (en) * | 1988-09-21 | 1992-08-21 | 박원근 | Thermal valve |
| CN2090904U (en) * | 1991-01-10 | 1991-12-18 | 中国科学技术大学 | Safety valve for hot water device |
| CN2692430Y (en) * | 2004-01-03 | 2005-04-13 | 董元源 | Memory alloy antiscald valve |
| CN200986041Y (en) * | 2006-05-08 | 2007-12-05 | 涂其德 | Constant temperature water temperature controlling valve |
| KR20110134236A (en) * | 2010-06-08 | 2011-12-14 | 최일웅 | A valve for temperature and flow controlling |
| CN202852166U (en) * | 2012-11-07 | 2013-04-03 | 胡烈聪 | Temperature-sensing valve |
| CN203195561U (en) * | 2013-04-28 | 2013-09-18 | 上海工程技术大学 | Intelligent temperature-adjusting foot basin |
| CN104398181A (en) * | 2014-12-16 | 2015-03-11 | 杜志刚 | Non-electrical constant-temperature foot tub |
| JP2017190826A (en) * | 2016-04-13 | 2017-10-19 | 東芝キヤリア株式会社 | Two-way valve and hot water supply device |
| CN107397475A (en) * | 2016-05-22 | 2017-11-28 | 以凡泰行（深圳）实业有限公司 | Constant temperature bathtub |
| CN207945300U (en) * | 2018-01-31 | 2018-10-09 | 以凡泰行（深圳）实业有限公司 | A kind of no electric control temperature bathtub |
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