CN208853388U - A kind of scale remove device of heating and ventilating pipeline - Google Patents
A kind of scale remove device of heating and ventilating pipeline Download PDFInfo
- Publication number
- CN208853388U CN208853388U CN201821148923.1U CN201821148923U CN208853388U CN 208853388 U CN208853388 U CN 208853388U CN 201821148923 U CN201821148923 U CN 201821148923U CN 208853388 U CN208853388 U CN 208853388U
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- connecting rod
- tube
- heating
- fixing seat
- scale
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Abstract
The utility model provides a kind of scale remove device of heating and ventilating pipeline, including sponge column, fixing seat, hairbrush, connecting rod, rotating ball, limit base, mounting base, spray head, branched pipe and injection tube, sponge column is installed on the left of tubular body, sponge column right side is equipped with connecting rod, mounting base is set in connecting rod annular side, first spring upper end face is equipped with fixing seat, fixing seat upper surface is equipped with hairbrush, second spring upper surface is equipped with limit base, rotating ball is arranged in arc-shaped slot, water-supply-pipe is equipped with branched pipe in two sides up and down, branched pipe lower end surface is equipped with spray head, injection-tube right side is equipped with injection tube, the utility model clever structure, it is easy to use, different materials repeatedly cleans same a part of inboard wall of tube body, scale removal effect is obvious, the scale removal time is short, the mode of physics scale removal will not be changed Learn the case where medicament is to Pipeline damage.
Description
Technical field
The utility model is a kind of scale remove device of heating and ventilating pipeline, belongs to pipe-line maintenance equipment technical field.
Background technique
It is used after a certain period of time in heating and ventilating pipeline, wherein more scale may be assembled on the inner wall of heating and ventilating pipeline,
Scale thermal conductivity is very poor, will lead to the deterioration of heating surface heat transfer situation due to expanding with heat and contract with cold and unbalance stress and greatly increases HVAC
The risk that pipeline burst even explodes, when scale is cementing, also can usually adhere to plurality of heavy metal ion, if conveyed with it
Water has the risk that heavy metal ion is excessively dissolved in water, and therefore, the harm of scale is obvious.
Chemical agent, such as scale remover is directly added in the scale removed in heating and ventilating pipeline at present into heating and ventilating pipeline mostly,
The required scale removal time is longer, and scale removal effect is poor, is badly in need of a kind of scale remove device of heating and ventilating pipeline now to solve
State the problem.
Summary of the invention
In view of the deficienciess of the prior art, the scale that the utility model aim is to provide a kind of heating and ventilating pipeline removes dress
It sets, to solve the problems mentioned in the above background technology, the utility model clever structure is easy to use, and different materials are to pipe
Same a part of internal wall is repeatedly cleaned, and scale removal effect is obvious, and the scale removal time is short, and the mode of physics scale removal will not occur
The case where chemical agent is to Pipeline damage.
To achieve the goals above, the utility model is achieved through the following technical solutions: a kind of heating and ventilating pipeline
Scale remove device, including tube body, sponge column, connecting rod, mounting base and injection tube, the tubular body left side are equipped with sea
Continuous column, the sponge column right side are equipped with connecting rod, and setting is on the right side of tubular body, the sponge column on the left of the connecting rod
Equipped with mounting base, the mounting base is set in connecting rod annular side, and the connecting rod annular side right side opening is equipped with arc ring
Slot, the connecting rod right side are equipped with Rocker handle, and the mounting base symmetrically offers the first mounting groove in two sides up and down, described
It is equipped with sliding slot at left and right sides of first mounting groove inner wall, the first spring is installed on the downside of the first mounting groove inner wall, described first
Spring upper end face is equipped with fixing seat, and the fixing seat upper surface is equipped with hairbrush, and described fixing seat or so end face is equipped with cunning
Block, the fixing seat are slidably connected by sliding block and sliding slot, and the tube body right side is equipped with deck, and the deck middle position is opened
Equipped with limit hole, two sides symmetrically offer the second mounting groove, the second mounting groove inner wall downside to the limit hole inner wall up and down
Second spring is installed, the second spring upper surface is equipped with limit base, and the limit base upper surface is equipped with arc-shaped slot, described
Rotating ball is arranged in arc-shaped slot, connecting rod bosom position is equipped with water-supply-pipe, and the water-supply-pipe up and down pacify by two sides
Equipped with branched pipe, the branched pipe lower end surface is equipped with spray head, is equipped with hickey on the right side of the water-supply-pipe, the screw thread connects
Mouth is internal to be equipped with injection-tube, and the injection-tube right side is equipped with injection tube, and piston is equipped with inside the injection tube, described
Piston right side is equipped with push rod, and the push rod right side is equipped with push plate, and the push plate is connected by push rod with piston.
Further, the arc-shaped ring groove is equidistant is provided on the right side of connecting rod annular side, and multiple rotating balls
It is fastened in same arc-shaped ring groove jointly.
Further, multiple sliding slots, the fixing seat or so are symmetrically offered at left and right sides of the first mounting groove inner wall
End surface symmetric has been equipped with multiple sliding blocks, and the fixing seat is slidably connected in sliding slot by sliding block.
Further, the sponge column annular side is in contact with tube body inner sidewall, the hairbrush outside and inboard wall of tube body
It is in contact.
Further, the arc-shaped slot depth is greater than the radius of rotating ball.
Further, the Rocker handle outer surface is arranged with rubber antiskid pad, and rubber antiskid pad is equipped with anti-skid chequer.
Further, the injection-tube annular side is equipped with external screw thread, and the injection-tube passes through screw thread and hickey phase
Connection, the hickey are mutually tightly connected by ring flange with water-supply-pipe.
Further, it is equipped with water filling port on the left of the injection tube upper surface, and sealing-plug is installed inside water filling port, it is described
Scale cleaning solution is filled with inside injection tube.
Compared with prior art, the utility model has the beneficial effects that
1, same position is repeatedly cleaned using sponge column and hairbrush, reinforces cleaning effect.
2, device is fixed on to the port of tube body using deck, passes through second spring, limit base, arc-shaped slot, rotating ball
Setting with arc-shaped ring groove limits the position of connecting rod, connecting rod when guaranteeing to drive connecting rod rotation by Rocker handle
Biggish shaking will not be generated, is exerted a force convenient for user, while the rolling between rotating ball and arc-shaped ring groove can also assist connecting
Bar rotation, reduces the force of user.
3, the first mounting groove and the first spring are able to drive fixing seat and brush movement, can be suitable in a certain range
The tube body of different size, while the elastic force of the first spring can guarantee that the contact of hairbrush with inboard wall of tube body maximum magnitude, enhancing are clear
Except effect, the setting of sliding slot and sliding block can be defined the movement of fixing seat, reduce the shaking in fixing seat moving process.
4, scale cleaning solution is filled with inside injection tube, push plate pushes piston by push rod, the scale cleaning in injection tube
Liquid is sprayed on inboard wall of tube body by water-supply-pipe, branched pipe and spray head, is facilitated the removal of inboard wall of tube body scale, is increased pipe
The removal effect of body scale.
In conclusion the utility model clever structure, easy to use, different materials to same a part of inboard wall of tube body into
Row repeatedly cleaning, scale removal effect is obvious, and the scale removal time is short, and the mode of physics scale removal chemical agent will not occur to Pipeline damage
The case where.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is a kind of structural schematic diagram of the scale remove device of heating and ventilating pipeline of the utility model；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the first mounting groove part-structure enlarged drawing in a kind of scale remove device of heating and ventilating pipeline of the utility model；
Fig. 4 is the enlarged drawing of limit base in a kind of scale remove device of heating and ventilating pipeline of the utility model；
Fig. 5 is the enlarged drawing of arc-shaped ring groove in a kind of scale remove device of heating and ventilating pipeline of the utility model；
Fig. 6 is a kind of front view of the scale remove device of heating and ventilating pipeline of the utility model；
Fig. 7 is the enlarged drawing of injection tube in a kind of scale remove device of heating and ventilating pipeline of the utility model；
In figure: 1- tube body, 2- sponge column, the first spring of 3-, 4- sliding block, the first mounting groove of 5-, 6- sliding slot, 7- fixing seat,
8- hairbrush, 9- deck, 10- connecting rod, 11- arc-shaped ring groove, 12- Rocker handle, the second mounting groove of 13-, 14- rotating ball, 15- arc
Shape card slot, 16- limit base, 17- mounting base, 18- limit hole, 19- second spring, 20- spray head, 21- branched pipe, 22- water-supply-pipe,
23- injection tube, 24- push plate, 25- push rod, 26- piston, 27- hickey, 28- injection-tube.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
Fig. 1-Fig. 7 is please referred to, the utility model provides a kind of technical solution: a kind of scale remove device of heating and ventilating pipeline,
Including tube body 1, sponge column 2, connecting rod 10, mounting base 17 and injection tube 23,1 inside left of tube body is equipped with sponge column 2, sea
Continuous 2 right side of column is equipped with connecting rod 10, is arranged inside tube body 1 on the left of connecting rod 10, mounting base is equipped on the right side of sponge column 2
17, mounting base 17 is set in 10 annular side of connecting rod, and 10 annular side right side opening of connecting rod is equipped with arc-shaped ring groove 11, connecting rod
10 right sides are equipped with Rocker handle 12, and about 17 two sides of mounting base symmetrically offer the first mounting groove 5, in the first mounting groove 5
It is equipped with sliding slot 6 at left and right sides of wall, the first spring 3 is installed on the downside of 5 inner wall of the first mounting groove, 3 upper surface of the first spring is equipped with
Fixing seat 7,7 upper surface of fixing seat are equipped with hairbrush 8, and 7 or so end face of fixing seat is equipped with sliding block 4, and fixing seat 7 passes through sliding block 4
It is slidably connected with sliding slot 6,1 right side of tube body is equipped with deck 9, and 9 middle position of deck offers limit hole 18,18 inner wall of limit hole
Upper and lower two sides symmetrically offer the second mounting groove 13, install second spring 19, second spring 19 on the downside of 13 inner wall of the second mounting groove
Upper surface is equipped with limit base 16, and 16 upper surface of limit base is equipped with arc-shaped slot 15, is arranged with rotating ball 14 in arc-shaped slot 15,
10 bosom position of connecting rod is equipped with water-supply-pipe 22, and about 22 two sides of water-supply-pipe are equipped with branched pipe 21,21 lower end of branched pipe
Face is equipped with spray head 20, and hickey 27 is equipped on the right side of water-supply-pipe 22, and injection-tube 28 is equipped with inside hickey 27, injection
28 right side of pipe is equipped with injection tube 23, and piston 26 is equipped with inside injection tube 23, and 26 right side of piston is equipped with push rod 25, pushes away
25 right side of bar is equipped with push plate 24, and push plate 24 is connected by push rod 25 with piston 26
Arc-shaped ring groove 11 is equidistant to be provided on the right side of 10 annular side of connecting rod, and multiple rotating balls 14 are fastened on together jointly
In one arc-shaped ring groove 11, rotating ball 14 is facilitated to be fastened on inside arc-shaped ring groove 11, is symmetrically opened at left and right sides of 5 inner wall of the first mounting groove
Equipped with multiple sliding slots 6,7 or so end surface symmetric of fixing seat has been equipped with multiple sliding blocks 4, and fixing seat 7 is slidably connected at by sliding block 4
In sliding slot 6, fixing seat 7 can move back and forth back and forth inside the first mounting groove 5,2 annular side of sponge column and 1 inner sidewall of tube body
It is in contact, 8 outside of hairbrush is in contact with 1 inner wall of tube body, and sponge column 2 and hairbrush 8 are in contact with 1 inner wall of tube body, convenient in tube body 1
The removing of portion's scale, 15 depth of arc-shaped slot are greater than the radius of rotating ball 14, and rotating ball 14 is without departing from arc-shaped slot 15, simultaneously
The rotation of rotating ball 14 is nor affected on, 12 outer surface of Rocker handle is arranged with rubber antiskid pad, and rubber antiskid pad is equipped with and prevents
Sliding line, rubber antiskid pad increase the usage comfort of Rocker handle 12, and anti-skid chequer increases the skid resistance of Rocker handle 12, note
28 annular side of pipe is penetrated equipped with external screw thread, injection-tube 28 is connected by screw thread with hickey 27, and hickey 27 passes through method
Blue disk is tightly connected with 22 phase of water-supply-pipe, is facilitated injection-tube 28 and is connected with hickey 27, increases the utility model
Leakproofness, 23 upper surface of injection tube left side is equipped with water filling port, and sealing-plug is equipped with inside water filling port, loads inside injection tube 23
There is scale cleaning solution, water filling port facilitates addition scale cleaning solution inside injection tube 23.
One embodiment as the utility model: when cleaning 1 inner wall scale of tube body, user of service first cleans scale
Liquid is added to inside injection tube 23 by water filling port, then pushes push plate 24 to the left, push plate 24 is by push rod 25 with piston 26
It being moved to the left, scale cleaning solution passes through injection-tube 28 under the effect of the pressure and enters inside 22 inside of water-supply-pipe and branched pipe 21,
It is most sprayed out afterwards through spray head 20, facilitates the removing of hairbrush 8, improve scale elimination effect.
Deck 9 is fastened on the right side of tube body 1, and sponge column 2 and mounting base 17 are installed to tube body 1, and 1 inner wall of tube body squeezes
Dabbing brush 8, hairbrush 8 drive fixing seat 7 to move into the first mounting groove 5, and sliding block 4 slides in sliding slot 6,3 stress of the first spring
Compression restores former long elastic force by the first spring 3 and squeezes fixing seat 7 and hairbrush 8, guarantees that hairbrush 8 and the inner wall of tube body 1 connect
Contacting surface product is maximum, guarantees cleaning effect, and then user of service realizes the rotation of connecting rod 10, even by rotating rocker handle 12
Sponge column 2 and mounting base 17 on extension bar 10 rotate, and sponge column 2 clears up the inner sidewall of tube body 1 for the first time, scale removal, together
When mounting base 17 cleaned with inner wall of the electric brush 8 to tube body 1, the side after being cleaned to a position, in Xiang Guanti 1
To connecting rod 10, the side wall of the sidewall extrusion rotating ball 14 of arc-shaped ring groove 11 is pushed, second spring 19 is compressed, the side of rotating ball 14
Wall and the side wall of connecting rod 10 offset, and continue to press on connecting rod 10, and when being pushed to next arc-shaped ring groove 11, second spring 19 is extensive
Length is restored, drives limit base 16 and rotating ball 14 to move, rotating ball 14 is fastened in corresponding arc-shaped ring groove 11, mounting base 17
On hairbrush 8 the clean position of sponge column 2 before can be cleaned again, reinforce cleaning effect.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are embraced therein.It should not treat any reference in the claims as limiting related right
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of scale remove device of heating and ventilating pipeline, including tube body (1), sponge column (2), connecting rod (10), mounting base (17)
And injection tube (23), it is characterised in that: tube body (1) inside left is equipped with sponge column (2), and the sponge column (2) is right
End face is equipped with connecting rod (10), and setting is internal in tube body (1) on the left of the connecting rod (10), is set on the right side of the sponge column (2)
Have mounting base (17), the mounting base (17) is set in connecting rod (10) annular side, and connecting rod (10) annular side is right
Side offers arc-shaped ring groove (11), and connecting rod (10) right side is equipped with Rocker handle (12), on the mounting base (17)
Lower two sides symmetrically offer the first mounting groove (5), are equipped with sliding slot (6) at left and right sides of the first mounting groove (5) inner wall, and described the
It is equipped with the first spring (3) on the downside of one mounting groove (5) inner wall, the first spring (3) upper surface is equipped with fixing seat (7), institute
It states fixing seat (7) upper surface to be equipped with hairbrush (8), fixing seat (7) the left and right end face is equipped with sliding block (4), the fixing seat
(7) it is slidably connected by sliding block (4) with sliding slot (6), tube body (1) right side is equipped with deck (9), and the deck (9) is intermediate
Position offers limit hole (18), and limit hole (18) inner wall symmetrically offers the second mounting groove (13) two sides up and down, described
Second spring (19) are installed on the downside of second mounting groove (13) inner wall, second spring (19) upper surface is equipped with limit base
(16), limit base (16) upper surface is equipped with arc-shaped slot (15), is arranged with rotating ball (14) in the arc-shaped slot (15),
Connecting rod (10) the bosom position is equipped with water-supply-pipe (22), and the water-supply-pipe (22) is equipped with branched pipe in two sides up and down
(21), branched pipe (21) lower end surface is equipped with spray head (20), is equipped with hickey (27) on the right side of the water-supply-pipe (22),
It is equipped with injection-tube (28) inside the hickey (27), injection-tube (28) right side is equipped with injection tube (23), institute
It states and is equipped with piston (26) inside injection tube (23), piston (26) right side is equipped with push rod (25), the push rod (25)
Right side is equipped with push plate (24), and the push plate (24) is connected by push rod (25) with piston (26).
2. a kind of scale remove device of heating and ventilating pipeline according to claim 1, it is characterised in that: the arc-shaped ring groove
(11) equidistant to be provided on the right side of connecting rod (10) annular side, and multiple rotating balls (14) are fastened on same arc jointly
In annular groove (11).
3. a kind of scale remove device of heating and ventilating pipeline according to claim 1, it is characterised in that: first mounting groove
(5) it is symmetrically offered multiple sliding slots (6) at left and right sides of inner wall, fixing seat (7) left and right end surface symmetric has been equipped with multiple cunnings
Block (4), the fixing seat (7) are slidably connected in sliding slot (6) by sliding block (4).
4. a kind of scale remove device of heating and ventilating pipeline according to claim 1, it is characterised in that: the sponge column (2)
Annular side is in contact with tube body (1) inner sidewall, is in contact on the outside of the hairbrush (8) with tube body (1) inner wall.
5. a kind of scale remove device of heating and ventilating pipeline according to claim 1, it is characterised in that: the arc-shaped slot
(15) depth is greater than the radius of rotating ball (14).
6. a kind of scale remove device of heating and ventilating pipeline according to claim 1, it is characterised in that: the Rocker handle
(12) outer surface is arranged with rubber antiskid pad, and rubber antiskid pad is equipped with anti-skid chequer.
7. a kind of scale remove device of heating and ventilating pipeline according to claim 1, it is characterised in that: the injection-tube (28)
Annular side is equipped with external screw thread, and the injection-tube (28) is connected by screw thread with hickey (27), the hickey
(27) it is mutually tightly connected by ring flange with water-supply-pipe (22).
8. a kind of scale remove device of heating and ventilating pipeline according to claim 1, it is characterised in that: the injection tube (23)
It is equipped with water filling port on the left of upper surface, and sealing-plug is installed inside water filling port, it is clear to be filled with scale inside the injection tube (23)
Washing lotion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821148923.1U CN208853388U (en) | 2018-07-20 | 2018-07-20 | A kind of scale remove device of heating and ventilating pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821148923.1U CN208853388U (en) | 2018-07-20 | 2018-07-20 | A kind of scale remove device of heating and ventilating pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208853388U true CN208853388U (en) | 2019-05-14 |
Family
ID=66412864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821148923.1U Expired - Fee Related CN208853388U (en) | 2018-07-20 | 2018-07-20 | A kind of scale remove device of heating and ventilating pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208853388U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940225A (en) * | 2019-12-10 | 2020-03-31 | 山东海润斯通电力工程有限公司 | Automatic piece-by-piece cleaning equipment for heat storage elements of air pre-heater |
| CN111136068A (en) * | 2020-01-07 | 2020-05-12 | 皖西学院 | Steel pipe cleaning equipment for machining |
| CN111250491A (en) * | 2020-03-25 | 2020-06-09 | 耿彪 | Stainless steel clamping and pressing type scale removing device for valve |
| CN111595683A (en) * | 2020-04-25 | 2020-08-28 | 南通科创建设工程检测有限公司 | Building material shaping detection utensil |
| CN111774352A (en) * | 2020-07-07 | 2020-10-16 | 湖北清江水电开发有限责任公司 | Automatic cleaning device and cleaning method for stator bar iron core of hydraulic generator |
| CN111981893A (en) * | 2020-08-31 | 2020-11-24 | 合肥清雅装饰工程有限公司 | Heating pipeline descaling device |
| CN112524680A (en) * | 2020-11-16 | 2021-03-19 | 温州港臣信息科技有限公司 | Heating and ventilation centralized heating pipeline with dredging component |
| CN112878437A (en) * | 2021-01-12 | 2021-06-01 | 陈富荣 | Higher atmospheric pressure equipment of cleanliness |
| CN112892947A (en) * | 2021-01-19 | 2021-06-04 | 吴振威 | Vacuum tube descaling agent spraying device of solar water heater |
| CN113926804A (en) * | 2021-11-01 | 2022-01-14 | 一汽解放汽车有限公司 | Cleaning device of exhaust pipeline |
| CN115739859A (en) * | 2022-10-25 | 2023-03-07 | 广东鼎泰高科技术股份有限公司 | Carbon film removing device and method |
| CN116060393A (en) * | 2023-03-24 | 2023-05-05 | 河北中咨智行工程咨询有限公司 | Cleaning device for heating and ventilation pipeline |
-
2018
- 2018-07-20 CN CN201821148923.1U patent/CN208853388U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940225A (en) * | 2019-12-10 | 2020-03-31 | 山东海润斯通电力工程有限公司 | Automatic piece-by-piece cleaning equipment for heat storage elements of air pre-heater |
| CN111136068A (en) * | 2020-01-07 | 2020-05-12 | 皖西学院 | Steel pipe cleaning equipment for machining |
| CN111250491A (en) * | 2020-03-25 | 2020-06-09 | 耿彪 | Stainless steel clamping and pressing type scale removing device for valve |
| CN111595683A (en) * | 2020-04-25 | 2020-08-28 | 南通科创建设工程检测有限公司 | Building material shaping detection utensil |
| CN111774352B (en) * | 2020-07-07 | 2023-10-31 | 湖北清江水电开发有限责任公司 | Automatic cleaning device and cleaning method for stator bar iron core of hydraulic generator |
| CN111774352A (en) * | 2020-07-07 | 2020-10-16 | 湖北清江水电开发有限责任公司 | Automatic cleaning device and cleaning method for stator bar iron core of hydraulic generator |
| CN111981893A (en) * | 2020-08-31 | 2020-11-24 | 合肥清雅装饰工程有限公司 | Heating pipeline descaling device |
| CN112524680A (en) * | 2020-11-16 | 2021-03-19 | 温州港臣信息科技有限公司 | Heating and ventilation centralized heating pipeline with dredging component |
| CN112878437A (en) * | 2021-01-12 | 2021-06-01 | 陈富荣 | Higher atmospheric pressure equipment of cleanliness |
| CN112892947A (en) * | 2021-01-19 | 2021-06-04 | 吴振威 | Vacuum tube descaling agent spraying device of solar water heater |
| CN112892947B (en) * | 2021-01-19 | 2023-01-17 | 合肥荣事达太阳能有限公司 | Vacuum tube descaling agent spraying device of solar water heater |
| CN113926804A (en) * | 2021-11-01 | 2022-01-14 | 一汽解放汽车有限公司 | Cleaning device of exhaust pipeline |
| CN115739859A (en) * | 2022-10-25 | 2023-03-07 | 广东鼎泰高科技术股份有限公司 | Carbon film removing device and method |
| CN116060393A (en) * | 2023-03-24 | 2023-05-05 | 河北中咨智行工程咨询有限公司 | Cleaning device for heating and ventilation pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 Termination date: 20200720 |