CN106594447A - Anti-freezing connector provided with heating body - Google Patents
Anti-freezing connector provided with heating body Download PDFInfo
- Publication number
- CN106594447A CN106594447A CN201611270033.3A CN201611270033A CN106594447A CN 106594447 A CN106594447 A CN 106594447A CN 201611270033 A CN201611270033 A CN 201611270033A CN 106594447 A CN106594447 A CN 106594447A
- Authority
- CN
- China
- Prior art keywords
- water
- joint
- water valve
- battery
- calandria
- 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.)
- Granted
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/14—Devices for thawing frozen pipes
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- 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
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Temperature-Responsive Valves (AREA)
- Safety Valves (AREA)
Abstract
An anti-freezing connector provided with a heating body is mainly composed of a connector body, a water valve, a spring, an adjustment screw, a capsule bag and a capsule bag sleeve. When water in the capsule bag freezes, the size of ice enlarges to enable the capsule bag to stretch so as to jack the water valve, so that water in a water supply pipeline flows into the connector body, the water entering the connector body can only flow away from the side of the connector body under the blocking effect of a piston plate, and therefore water in the water supply pipeline at the up stream of the connector body is in a flowing status, so that the phenomenon that the water freezes to fracture the water pipe is not prone to occurring; and when the environment temperature drops to zero DEG C, a control chip enables a switch to be in an on status, and the heating body generates heat to prevent the water entering the connector body from freezing.
Description
Technical field
The present invention relates to a kind of anti-freeze joint with calandria for being prevented from water supply pipe icing.
Background technology
When winter environment temperature is down to zero following, water supply pipe or water meter often occurs because freezing and the feelings of rupture
Condition, causes substantial amounts of maintenance work, and not only property loss is larger, and maintenance cost is also higher, and maintenance is also more difficult.Cause
This, needs to find a kind of device for being prevented from water supply pipe icing.
It is, thus, sought for a kind of device for being prevented from water supply pipe icing.
The content of the invention
The purpose of the present invention is：A kind of device for being prevented from water supply pipe icing is provided.
The technical scheme is that：A kind of anti-freeze joint with calandria, mainly including joint, water valve 1, spring 2,
Set screw 3, capsule bag 4 and capsule jacket 5 are constituted, and Nang Bao sides wall is provided with multiple fold that can be stretched, and water is full of in capsule bag,
Joint is threaded on water supply pipe by two ends, and multiple air-vents 51 are provided with capsule jacket；Joint middle part is provided with
Union joint 6 outwardly, at union joint and fittings inwardly projecting bead 61 is provided with, and in union joint side row is provided with
Water pipe 62；Water valve is made up of water valve bullet and water valve stem, and water valve bullet is located in joint, water valve stem company of reeve from joint
In coupler bore, bead is located at the one end in water supply pipe and forms tight fit with the water valve bullet of water valve, and spring housing is in water
On valve rod, tapped adjustment hole is provided with water valve stem；By nut and screw rod, anti-freeze joint also includes living set screw
Seben 7, the external diameter of piston plate is more than the diameter of bore of union joint, and piston plate is enclosed within the screw rod of set screw by central through hole
On, then the adjustment hole screw rod of set screw being screwable on water valve stem, one end for making spring is against in bead, and the other end is supported
On piston plate, during original state, tension force of spring makes the water valve bullet of water valve and bead be formed towards the opening of joint
Tight fit, piston plate leaves union joint, puts Nang Bao into capsule jackets, then capsule jacket is threadedly coupled with union joint, packs tightly capsule
The nut of patch set screw；When ambient temperature is dropped to it is subzero when, the water freezing in capsule bag extends Nang Bao, and Nang Bao elongations will be by
Set screw, piston plate and the water valve for fitting together to the direction of joint is pushed up, and piston plate is moved to union joint, makes water valve
Water valve bullet leave bead, space, sky of the water in joint between water valve and bead are produced between water valve and bead
Clearance flow enters union joint, then flows away from drain pipe, when the water freeze in capsule bag, piston plate will be pushed against on union joint；
Battery cavities 63 outwardly are additionally provided with union joint, around union joint endoporus calandria 64 separated in a circle are provided with,
Battery cavities bottom is provided with conductive plate, and conductive plate is connected by wire with one end of calandria, and battery 65 is pressed into into battery cavities makes this
A little battery series connection, then battery collet 66 is covered, finally protective cover 67 is covered on battery cavities；Described battery collet is provided with one
Circle groove, one end of calandria is connected by wire with conductive plate, the other end of calandria and leading into battery cavity wall
Line is connected, and this wire extends to battery cavities end face outwardly, is provided with a circle and battery collet in battery cavities end face outwardly
The corresponding groove of groove, be pressed in the groove of battery resonator end surface a circle it is exposed extend the wire phase that comes with from calandria
Connecting line even, when battery floor backing pressure to battery cavities port outwardly, connecting line is exposed to be partially into battery floor
In the groove of support, battery collet is set to form tight fit with the end face of battery cavities, then by protective cover lid, battery collet is adopted can
Conductive material makes；Be provided with switch on wire between connecting line and calandria, switch it is other be provided with temperature inductor and
The temperature value for detecting is passed to control chip by control chip, temperature inductor, when temperature inductor return temperature value it is low
When zero degrees celsius, control chip makes switch in open state, and the two poles of the earth of calandria connect respectively with battery supply, and calandria is sent out
Heat, by stream the water heating of union joint is entered, and prevents from entering the water freezing of union joint.
Described spring is turriform spring, and bottom of towe is against in bead, and tower top is against on piston plate.
Piston plate forms tight fit with the endoporus of capsule jacket.
The central seal groove that a circle is outwards recessed is provided with the central through hole of piston plate, around four the week side of boss walls of piston plate
The outer wall seal groove that a circle caves inward is provided with, the installation center sealing ring in central seal groove is embedded in outer wall seal groove
Upper outer wall sealing ring.
When the water in capsule bag is liquid, the maximum gauge of Nang Bao is less than the diameter of bore 1-3mm of capsule jacket, when in capsule bag
Water freezing when, the position-limiting action of receptaculum jacket, make capsule bag can only to joint direction extend.
Beneficial effect：
1st, when the water freezing in capsule bag, the volumetric expansion of ice makes Nang Bao extend jack-up water valve, in making water supply pipe
Water Liu Jin union joints, by the ponding of piston plate, the water into union joint can only flow away from the drain pipe of union joint side, from
And make the water in the water supply pipe of joint upstream in flow regime, and rupture water pipe so as to not-easy-to-freeze, work as environment
When temperature is down to zero, control chip makes switch in open state, heater heating, prevents from entering the water freezing of union joint.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention；
Fig. 2 is the figure that pops of the present invention；
Fig. 3 is the generalized section when water in capsule bag of the present invention does not freeze；
Generalized section when Fig. 4 is the water freezing in capsule bag of the present invention；
Fig. 5 is the dimensional structure diagram of the battery collet of the present invention.
Specific embodiment
As shown in Fig. 1 to Fig. 5, a kind of anti-freeze joint with calandria, mainly including joint, water valve 1, spring 2, regulation
Screw 3, capsule bag 4 and capsule jacket 5 are constituted, and Nang Bao sides wall is provided with multiple fold that can be stretched, in original state, Nang Bao
In be full of water, the state of the fold of Nang Bao in somewhat being strutted, joint is threaded on water supply pipe by two ends,
Multiple air-vents 51 are provided with capsule jacket.When the temperature of environment drops to subzero, Nang Bao is due to being located at outside water supply pipe simultaneously
Can pass through air-vent directly with extraneous air contact, easily first freeze than the water in water supply pipe.Because capsule is wrapped
Have fold such that it is able to more spaces are formed between Nang Bao and capsule jacket, enable the external world air more with Nang Bao
Wall is contacted, so as to be also easier to freeze.
Capsule containment wall is made using sheet metal or sheet rubber, and preferred sheet metal, because sheet metal easily transmits heat, works as the external world
Temperature change, it becomes possible to which extraneous temperature change is passed in time the water in capsule bag.
Joint middle part is provided with union joint 6 outwardly, and at union joint and fittings inwardly projecting bead is provided with
61, it is provided with drain pipe 62 in union joint side；Water valve is made up of water valve bullet and water valve stem, and water valve bullet is located at joint
Interior, water valve stem is injected in union joint endoporus from joint, and bead is located at the water valve taper of the one end in water supply pipe and water valve
Body forms tight fit, and spring housing is provided with tapped adjustment hole on water valve stem, on water valve stem；Set screw by nut and
Screw rod, anti-freeze joint also includes piston plate 7, and the external diameter of piston plate is more than the diameter of bore of union joint, and piston plate passes through center
Through hole is enclosed within the screw rod of set screw, then the adjustment hole screw rod of set screw being screwable on water valve stem, makes spring
One end is against in bead, and the other end is against on piston plate, set screw, piston plate and water valve is fitted together, original state
When, tension force of spring makes the water valve bullet of water valve and bead form tight fit towards the opening of joint, and piston plate leaves company
Joint, to make tension force of spring work, twists tightlier a bit by set screw, makes spring have a certain degree of compression, with
Strengthen the initial tension of spring.Put Nang Bao into capsule jackets again, then capsule jacket is threadedly coupled with union joint, by adjusting capsule
The position being wrapped on union joint, the roof for making Nang Bao is close to the nut of set screw.
When ambient temperature is more than zero degree, the water in water and capsule bag in water supply pipe is all without icing, and tap water
Hydraulic pressure in pipeline is larger, and the water valve bullet of water valve will be pressed in bead, therefore, the water in water supply pipe will not
Stream enters union joint.I.e. when ambient temperature is more than zero degree, anti-freeze joint only serves the effect of common water pipe head, and works as environment
When temperature is less than zero degree, anti-freeze joint just can play a part of to prevent water supply pipe from freezing.
When ambient temperature is dropped to it is subzero when, the water freezing volumetric expansion in capsule bag so that Nang Bao elongation, Nang Bao extend just
The set screw, piston plate and the water valve that fit together can be pushed up to the direction of joint, piston plate is moved to union joint, be made
The water valve bullet of water valve leaves bead, and space is produced between water valve and bead, and the water in joint is between water valve and bead
Space stream enter union joint, blocked by piston plate, current can only flow away from drain pipe, and drain pipe is by pipeline and drainage system
It is connected, water is discharged in drainage system, makes joint and the water in the water supply pipe of joint upstream in flow regime,
So as to not-easy-to-freeze.
When the water freeze in capsule bag, piston plate can be pushed against on union joint.
Described spring is turriform spring, and bottom of towe is against in bead, and tower top is against on piston plate.
Piston plate forms tight fit with the endoporus of capsule jacket, current is flowed from the space between piston plate and capsule jacket
To piston plate lower section, it is to avoid water makes the ice-out in capsule bag when flowing through Nang Bao surfaces.
Battery cavities 63 outwardly are additionally provided with union joint, around union joint endoporus separated in a circle adding is provided with
Hot body 64, battery cavities bottom is provided with conductive plate, and conductive plate is connected by wire with one end of calandria, and battery 65 is pressed into into battery
Chamber makes these battery series connection, then covers battery collet 66, finally protective cover 67 is covered on battery cavities；On described battery collet
A circle groove is provided with, one end of calandria is connected by wire with conductive plate, the other end of calandria and one enter battery cavities
The wire of wall is connected, and this wire extends to battery cavities end face outwardly, and in battery cavities end face outwardly a circle and battery are provided with
The corresponding groove of groove on collet, be pressed in the groove of battery resonator end surface a circle it is exposed with extend from calandria
The connected connecting line of wire, when battery floor backing pressure to battery cavities port outwardly, connecting line is exposed to be partially into
In the groove of battery collet, battery collet is set to form tight fit with the end face of battery cavities, then by protective cover lid, battery collet is adopted
With material making that can be conductive.Switch is provided with wire between connecting line and calandria, on switch side temperature sense is provided with
Answer device and control chip, temperature inductor that the temperature value for detecting is passed to into control chip, when the temperature that temperature inductor is returned
When angle value is less than zero degrees celsius, control chip makes switch in open state, and the two poles of the earth of calandria connect respectively with battery supply, plus
Hot body heating, by stream the water heating of union joint is entered, and prevents from entering the water freezing of union joint.Water is made due to only needing to somewhat heating not
Freeze, therefore, the loss to battery is not too large, and the original state of switch is off status.When temperature inductor return
Temperature value is more than five degrees Celsius, and control chip makes switch be in off status.
The central seal groove that a circle is outwards recessed is provided with the central through hole of piston plate, around four the week side of boss walls of piston plate
The outer wall seal groove that a circle caves inward is provided with, the installation center sealing ring in central seal groove is embedded in outer wall seal groove
Upper outer wall sealing ring.Central seal circle prevents current from wrapping to capsule from the space stream between the central through hole and screw rod of piston plate,
Outer wall sealing ring prevents space stream of the current between piston plate and piston bush from wrapping to capsule.
Described air-vent is elongated hole or circular hole.When the water in capsule bag is liquid, the maximum gauge of Nang Bao is less than capsule
The diameter of bore 1-3mm of jacket, when the water freezing in capsule bag, makes capsule bag to extend to both sides, the spacing work of receptaculum jacket
With, make capsule bag can only to joint direction extend.
After ambient temperature rises to above zero, the ice in capsule bag gradually melts, and the length of Nang Bao is gradually reduced, spring
Tension force will by the water valve for fitting together, piston plate and direction from set screw to Nang Bao push up so that the water valve of water valve
Bullet is pushed against in bead, makes the water in joint again to flow into union joint.
The aperture of drain pipe acts on the Aquatic product mainly made in the water supply pipe of joint upstream much smaller than the aperture of joint
Raw flowing, so as to not-easy-to-freeze.
Because the water meter on water supply pipe is easily broken when freezing, therefore, one anti-caking is installed in the downstream of water meter
Ice joint, it becomes possible to play a part of to prevent water meter from rupturing.
Above-described embodiment is intended merely to the purposes of the interpretation present invention, and is not limitation of the present invention, this technology
The those of ordinary skill in field, in the essential scope of the present invention, makes a variety of changes or substitutes, and should also belong to the guarantor of the present invention
Shield category.
Claims (5)
1. a kind of anti-freeze joint with calandria, mainly including joint, water valve (1), spring (2), set screw (3), Nang Bao
(4) and capsule jacket (5) composition, Nang Bao sides wall is provided with multiple fold that can be stretched, and water is full of in capsule bag, and joint passes through two
Being threaded on water supply pipe for end, is provided with multiple air-vents 51 on capsule jacket；Joint middle part is provided with outwardly
Union joint (6), at union joint and fittings inwardly projecting bead (61) is provided with, and in union joint side drain pipe is provided with
(62)；Water valve is made up of water valve bullet and water valve stem, and water valve bullet is located in joint, and water valve stem injects connection from joint
In head endoporus, bead is located at the one end in water supply pipe and forms tight fit with the water valve bullet of water valve, and spring housing is in water valve
On bar, tapped adjustment hole is provided with water valve stem；By nut and screw rod, anti-freeze joint also includes piston to set screw
Plate (7), the external diameter of piston plate is more than the diameter of bore of union joint, and piston plate is enclosed within the screw rod of set screw by central through hole
On, then the adjustment hole screw rod of set screw being screwable on water valve stem, one end for making spring is against in bead, and the other end is supported
On piston plate, during original state, tension force of spring makes the water valve bullet of water valve and bead be formed towards the opening of joint
Tight fit, piston plate leaves union joint, puts Nang Bao into capsule jackets, then capsule jacket is threadedly coupled with union joint, packs tightly capsule
The nut of patch set screw；When ambient temperature is dropped to it is subzero when, the water freezing in capsule bag extends Nang Bao, and Nang Bao elongations will be by
Set screw, piston plate and the water valve for fitting together to the direction of joint is pushed up, and piston plate is moved to union joint, makes water valve
Water valve bullet leave bead, space, sky of the water in joint between water valve and bead are produced between water valve and bead
Clearance flow enters union joint, then flows away from drain pipe, when the water freeze in capsule bag, piston plate will be pushed against on union joint；
It is characterized in that：Battery cavities (63) outwardly are additionally provided with union joint, are provided with a circle around union joint endoporus and are interrupted
The calandria (64) opened, battery cavities bottom is provided with conductive plate, and conductive plate is connected by wire with one end of calandria, by battery
(65) being pressed into battery cavities makes these battery series connection, then covers battery collet (66), finally protective cover (67) is covered on battery cavities；
Described battery collet is provided with a circle groove, and one end of calandria is connected by wire with conductive plate, the other end of calandria
It is connected with a wire for entering battery cavity wall, this wire extends to battery cavities end face outwardly, at battery cavities end outwardly
Face is provided with circle groove corresponding with the groove on battery collet, be pressed in the groove of battery resonator end surface a circle it is exposed with from
Calandria extends the connected connecting line of the wire that comes, and when battery floor backing pressure to battery cavities port outwardly, connecting line is naked
What is exposed outside is partially in the groove of battery collet, makes battery collet form tight fit with the end face of battery cavities, then will protection
Lid is covered, and battery collet is made using material that can be conductive；Switch is provided with wire between connecting line and calandria,
Switch is other to be provided with temperature inductor and control chip, and the temperature value for detecting is passed to control chip, works as temperature by temperature inductor
When the temperature value that degree induction apparatuss are returned is less than zero degrees celsius, control chip makes switch in open state, and the two poles of the earth of calandria are distinguished
Connect with battery supply, calandria heating, stream is entered into the water heating of union joint, prevent from entering the water freezing of union joint.
2. the anti-freeze joint with calandria according to claim 1, it is characterised in that：Described spring is turriform bullet
Spring, bottom of towe is against in bead, and tower top is against on piston plate.
3. the anti-freeze joint with calandria according to claim 1, it is characterised in that：The endoporus of piston plate and capsule jacket
Form tight fit.
4. the anti-freeze joint with calandria according to claim 1, it is characterised in that：In the central through hole of piston plate
The central seal groove that a circle is outwards recessed is provided with, around four the week side of boss walls of piston plate the outer wall sealing that a circle caves inward is provided with
Groove, the installation center sealing ring in central seal groove, the outer wall sealing ring on setting-in in outer wall seal groove.
5. the anti-freeze joint with calandria according to claim 1, it is characterised in that：When the water in capsule bag is liquid
When, the maximum gauge of Nang Bao less than capsule jacket diameter of bore 1-3mm, when the water freezing in capsule bag, receptaculum jacket it is spacing
Effect, makes capsule bag to extend to the direction of joint.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810181714.5A CN108266554B (en) | 2016-12-30 | 2016-12-30 | A kind of device that can prevent water supply pipe from freezing |
| CN201611270033.3A CN106594447B (en) | 2016-12-30 | 2016-12-30 | A kind of anti-freeze connector with calandria |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270033.3A CN106594447B (en) | 2016-12-30 | 2016-12-30 | A kind of anti-freeze connector with calandria |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810181714.5A Division CN108266554B (en) | 2016-12-30 | 2016-12-30 | A kind of device that can prevent water supply pipe from freezing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594447A true CN106594447A (en) | 2017-04-26 |
| CN106594447B CN106594447B (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810181714.5A Active CN108266554B (en) | 2016-12-30 | 2016-12-30 | A kind of device that can prevent water supply pipe from freezing |
| CN201611270033.3A Active CN106594447B (en) | 2016-12-30 | 2016-12-30 | A kind of anti-freeze connector with calandria |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810181714.5A Active CN108266554B (en) | 2016-12-30 | 2016-12-30 | A kind of device that can prevent water supply pipe from freezing |
Country Status (1)
| Country | Link |
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| CN (2) | CN108266554B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894283A (en) * | 2017-06-26 | 2018-11-27 | 中山市丰申电器有限公司 | A kind of anti-rupture device |
| CN111006738A (en) * | 2019-10-25 | 2020-04-14 | 雷谢明 | Precise material level instrument |
| CN111174003A (en) * | 2020-02-18 | 2020-05-19 | 杨立 | Anti-burst pipeline connector and working method thereof |
| CN111288245A (en) * | 2020-02-18 | 2020-06-16 | 杨立 | Component part of anti-burst pipeline connector |
| CN113669491A (en) * | 2021-08-19 | 2021-11-19 | 宁波市众顺盛精密制造有限公司 | Tap connecting valve of intelligence control by temperature change protection |
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| CN111405255B (en) * | 2020-05-15 | 2021-03-09 | 吕震 | Thawing apparatus for closed circuit television monitoring based on water freezing expansion principle |
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| CN113669491A (en) * | 2021-08-19 | 2021-11-19 | 宁波市众顺盛精密制造有限公司 | Tap connecting valve of intelligence control by temperature change protection |
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| CN108266554A (en) | 2018-07-10 |
| CN106594447B (en) | 2019-03-01 |
| CN108266554B (en) | 2019-07-02 |
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Effective date of registration: 20201225 Address after: 224400 No. E3 (z), Southwest Park, Funing Economic Development Zone, Yancheng City, Jiangsu Province Patentee after: Jiangsu yuanwanlong water supply and drainage equipment Co.,Ltd. Address before: 528458 530, 118 four building, five Gui Shan commercial street, Zhongshan, Guangdong. Patentee before: ZHONGSHAN FENGSHEN ELECTRICAL APPLIANCE Co.,Ltd. |