CN107349987A - Improve the experimental provision of student experimenting data accuracy - Google Patents
Improve the experimental provision of student experimenting data accuracy Download PDFInfo
- Publication number
- CN107349987A CN107349987A CN201710821126.9A CN201710821126A CN107349987A CN 107349987 A CN107349987 A CN 107349987A CN 201710821126 A CN201710821126 A CN 201710821126A CN 107349987 A CN107349987 A CN 107349987A
- Authority
- CN
- China
- Prior art keywords
- clip
- sleeve
- lifter plate
- experimental provision
- data accuracy
- 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
Links
- 230000033001 locomotion Effects 0.000 claims description 28
- 230000000694 effects Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 25
- 238000002474 experimental method Methods 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 10
- 239000010425 asbestos Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/50—Clamping means, tongs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/02—Adapting objects or devices to another
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/02—Adapting objects or devices to another
- B01L2200/023—Adapting objects or devices to another adapted for different sizes of tubes, tips or container
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses the experimental provision for improving student experimenting data accuracy, including base, the top of the base is provided with support post, support post is provided with lifter plate, lifter plate can move along the axis direction of support post, the side wall of the support post is provided with sleeve, connecting rod is provided with sleeve, connecting rod can move in sleeve, described sleeve one end is located in sleeve, the other end is provided with clamping element, and clamping element can rotate around the axis of connecting rod, the clamping device includes the first clip and the second clip, rotary shaft is additionally provided between first clip and the second clip, first clip and the second clip can rotate around rotary shaft.The present invention is simple in construction, easy to operate, can freely adjust the height of lifter plate, and ensures that lifter plate will not fall off, while can also adjust the length in the horizontal direction of clamping element, saves certain space.
Description
Technical field
The present invention relates to a kind of experiment equipment aid, and in particular to improves the experiment dress of student experimenting data accuracy
Put.
Background technology
Physics or chemistry are all the subjects based on experiment, and teacher's Binding experiment lectures knowledge, and student combines real
Test understanding and grasp knowledge, only classroom instruction is combined with experiment of starting, the teaching efficiency that could have been obtained, made after class
Industry contains substantial amounts of home test, and this requires the as learning to doing experiment of student, and to test more, to improve the dynamic of student
Hand ability.In Physical Experiment, iron stand is often used, iron stand is used to fixing and supporting various instruments, and iron ring can generation
Used for funnel stand.It is general the experimental implementation such as to be usually used in filtering, heat, titrate, it is most popular in physics, chemical experiment
One of instrument, often it is used cooperatively with alcolhol burner.Longer buret can be usually used during experiment or to place beaker heating, this
When will by iron stand by these device framves in suitable height, with the progress of profit experiment.When supporting buret, iron stand
On to press from both sides a buret clamp, buret just could be sandwiched in fixed on buret clamp.When placing beaker, one is then pressed from both sides on iron stand
Individual iron hoop, asbestos gauge is placed again on iron hoop, beaker is then placed on asbestos gauge.
At present, most of existing iron stand using bolt come realize lifting, but in this way use one section when
After time, because bolt is extruded with support bar for a long time, cause seriously be bolted abrasion on the support bar of iron stand, make
The height for being fixed on iron ring and specifying can not be stablized by obtaining bolt, when iron ring carries heavier experiment equipment, easily be slid,
The damage of experiment equipment is caused, meanwhile, although the cross bar that existing iron stand is used to connect iron ring can be also adjusted in level side
To length, but its length is longer, more space-consuming, and certain influence is also resulted in classmate's experiment.
The content of the invention
The technical problems to be solved by the invention are to overcome deficiency of the prior art, and it is an object of the present invention to provide improving student's reality
The experimental provision of data accuracy is tested, the length of horizontal direction can be adjusted, and space can be saved, is reduced to student experimenting
Influence.
The present invention is achieved through the following technical solutions：
The experimental provision of student experimenting data accuracy is improved, including base, the top of the base are provided with support post,
Support post is provided with lifter plate, and lifter plate can move along the axis direction of support post, the side wall of the support post
Sleeve is provided with, is provided with connecting rod in sleeve, connecting rod can move in sleeve, and described sleeve one end is located in sleeve, separately
One end is provided with clamping element, and clamping element can rotate around the axis of connecting rod, and the clamping device includes first
Clip and the second clip, are additionally provided with rotary shaft between the first clip and the second clip, the first clip and the second clip can be around
Rotary shaft rotation.
Further, the side wall of the support post is provided with opening, and lifter plate is located in opening, the inwall both sides of opening
It is all provided with fluted, the both sides of lifter plate are equipped with the projection with matching grooves, and projection is located in groove.
Further, loose slot is additionally provided with the lifter plate, the both sides of loose slot are equipped with some spacing holes.
Further, fixed block is additionally provided with the top of the support post, fixed block is provided with motion bar, and motion bar is successively
Level is interspersed in fixed block and loose slot, and limited block is additionally provided with the end of motion bar, and limited block is located at lifter plate
Outside, the limited block is provided with two gag lever posts, and gag lever post is inserted in spacing hole.
Further, the first flexible member is additionally provided with the motion bar, the first flexible member is enclosed on motion bar, and
First flexible member is between fixed block and lifter plate.
Further, transverse slat is additionally provided with the side wall of the lifter plate, transverse slat is located at the top of sleeve, and transverse slat is provided with pressure
Bar, depression bar can move along the axis direction of transverse slat, and the bottom of depression bar is located in sleeve.
Further, the second flexible member is also set on the depression bar, the second flexible member is enclosed on depression bar, and the second bullet
Property element is between sleeve and transverse slat.
Further, some sockets are additionally provided with the connecting rod, the bottom of depression bar is located in socket, and depression bar is by connecting rod
It is fixed in sleeve.
Further, chimb is equipped with first clip and the second clip, chimb is provided with fastening element, fastens member
First clip and the second clip are fixed together by part.
Further, moving element is additionally provided between the clamping element and connecting rod, moving element can be in connecting rod
Upper rotation, and clamping element can follow moving element to rotate together.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention improves the experimental provision of student experimenting data accuracy, when lifter plate is highly adjusted, pushes away
Dynamic motion bar so that the gag lever post on limited block removes out of lifter plate spacing hole, then can be freely to adjust lifter plate
Height on support post, pull limited block using flexible member so that the gag lever post on limited block is inserted into support post
Spacing hole in, lifter plate is fixed on support post, long-time Reusability will not also cause to wear, it is ensured that lifter plate
Stability, the situation for preventing to slide occur；
2nd, the present invention improves the experimental provision of student experimenting data accuracy, can adjust clamping element in the horizontal direction
Length, meet different use demands, and connecting rod can extend into sleeve, can save space, reduce to experimental implementation
Caused by inconvenience, while clamping element meets to clamp the experiment equipment of different-diameter.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the top view of support post of the present invention；
Fig. 3 is the side view of lifter plate of the present invention；
Fig. 4 is the structure schematic diagram of limited block of the present invention；
Fig. 5 is the top view of connecting rod of the present invention；
Fig. 6 is the structural representation of clamping element of the present invention.
Mark and corresponding parts title in accompanying drawing：
1- bases, 2- support posts, 3- limited blocks, the flexible members of 4- first, 5- fixed blocks, 6- lifter plates, 7- clamping members
Part, 8- connecting rods, 9- depression bars, the flexible members of 10- second, 11- transverse slats, 12- sleeves, 13- motion bars, 14- moving elements, 15-
Opening, 16- loose slots, 17- projections, 18- pads, 19- rotary shafts, 20- fastening elements, 21- spacing holes, 22- grooves, 31- limits
Position bar, the clips of 71- first, the clips of 72- second, 81- sockets.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As shown in Figures 1 to 6, the present invention improves the experimental provision of student experimenting data accuracy, including base 1, described
The rectangular configuration of base 1, the top of base 1 are provided with support post 2, and support post 2 is located at the central position of base 1, support
Column 2 is rectangular configuration, and the side wall of the support post 2 is provided with opening 15, and opening 15 and the top of support post 2 connect
Logical, the inwall both sides of the opening 15 are all provided with fluted 22, are provided with lifter plate 6 in the opening 15, lifter plate 6 can be in opening
To be moved in 15 along the axis direction of support post 2, the both sides of the lifter plate 6 are equipped with the projection 17 matched with groove 22,
Projection 17 is located in groove 22, and when lifter plate 6 moves in opening 15, projection 17 can move in groove 22, institute
The top for stating support post 2 is additionally provided with fixed block 5, and fixed block 5 is provided with motion bar 13, and the level of motion bar 13 is interspersed in fixed block
On 5, and motion bar 13 can horizontal direction movement in the interior edge of fixed block 5, and the lifter plate 6 is provided with loose slot 16, living
Lever 13 can be interspersed in loose slot 16, and motion bar 13 can move in loose slot 16, the loose slot 16 of the lifter plate 6
Both sides are equipped with some spacing holes 21, and spacing hole 21 is sequentially distributed in the both sides of loose slot 16, the motion bar 13 from top to bottom
End on be additionally provided with limited block 3, and limited block 3 is located at the outside of lifter plate 6, and the width of limited block 3 is more than loose slot 16
Width so that limited block 3 can not pass through loose slot 16, the side wall of the limited block 3 towards lifter plate 6 be provided with two it is spacing
Bar 31, gag lever post 31 are located at the axis both sides of limited block 2, and 13 liang of the spacing between two gag lever posts 31 and loose slot respectively
Spacing between the spacing hole 21 of side is consistent so that the gag lever post 31 on limited block 3 is inserted into spacing hole 21, the work
The first flexible member 4 is additionally provided with lever 13, the first flexible member 4 is elasticity, and the first flexible member 4 is enclosed on motion bar 13,
And the first flexible member 4, between fixed block 5 and lifter plate 6, the first flexible member 4, will when not acted on by external force
Motion bar 13 is pulled towards the direction of fixed block 5, forces limited block 3 that lifter plate 6 is fixed on support post 2, while with hand court
When 6 direction Level Promoting motion bar 13 of lifter plate, motion bar 13 will drive the gag lever post 31 on limited block 3 from lifter plate 6
Spacing hole 21 in move so that lifter plate 6 can move in the opening 15 of support post 2, to adjust the height of lifter plate 6
Degree, when the power that outer bound pair motion bar 13 applies disappears, the first flexible member 4 pulls on the spacing hole 3 of motion bar 13 so that spacing
Bar 31 is reinserted to spacing hole 21, and lifter plate 6 is fixed on support post 2, prevents the landing of lifter plate 6.
Sleeve 12 and transverse slat 11 are additionally provided with the side wall of the lifter plate 6, transverse slat 11 is located at the surface of sleeve 12, sleeve
It is cavity structure in 12, connecting rod 8 is provided with cavity, connecting rod 8 can horizontal direction movement, the company in the interior edge of sleeve 12
Some sockets 81 are evenly provided with extension bar 8, the transverse slat 11 is provided with depression bar 9, and depression bar 9 is interspersed on transverse slat 11 vertically, and
And cross bar 11 can move along the axis direction of transverse slat 11, the bottom of the depression bar 9 is located in sleeve 12, and depression bar 9 is worn
It is inserted in the socket 81 of connecting rod 8, connecting rod 8 is fixed in sleeve 12 by depression bar 9, and the depression bar 9 is provided with the second elasticity member
Part 10, the second flexible member 10 are also spring, and the second flexible member 10 is enclosed on depression bar 9, elastic force caused by the second flexible member
So that depression bar 9 is inserted into socket 81, when present dynasty pulls up dynamic pressure bar 9, depression bar 9 will remove out of socket 81, just can be in sleeve
Mobile link bar 8 in 12, realizes the regulation to the horizontal direction of connecting rod 8, after the external force applied to depression bar 9 removes, the second bullet
Property element 10 will force depression bar 9 to reinsert to socket 81, and connecting rod 8 is fixed in sleeve 12 again；The connecting rod 8
One end is located in sleeve 12, and the other end is provided with moving element 14, and moving element 14 can rotate in connecting rod 8, the work
Clamping element 7 is additionally provided with dynamic element 14, clamping element 7 can follow moving element 14 to rotate together, be easy to regulation clamping member
The angle of part 7, meets different use demands, and the clamping element 7 includes the first clip 71 and the second clip 72, the first clip
71 and second clip 72 form circular ring structure, rotary shaft 19, the first clip 71 are provided between the first clip 71 and the second clip 72
Can be rotated with the second clip 72 around rotary shaft 19, described one end of first clip, 71 and second clip 72 with rotary shaft 19
Connection, is equipped with chimb on the other end, and the chimb of the first clip 71 and the second clip 72 is provided with fastening element 20, fastening element
20 be screw, and the first clip 71 and the second clip 72 are fixed together by retaining element 20, and first clip 71 and second blocks
Some pads 18 are additionally provided with the inwall of hoop 72, pad 18 is used to protect the experiment equipment to be clamped, and prevents the first clip 71
Experiment equipment is scratched with the second clip 72.
The present invention is in use, when needing to adjust the height of iron ring, and with hand Level Promoting motion bar 13, motion bar 13 drives limit
Position block 3 moves, and forces the gag lever post 31 on limited block 3 to be removed out of lifter plate 6 spacing hole 21, just can adjust lifter plate 6
Height, when suitable height arrive in the regulation of lifter plate 6, remove the power of promotion motion bar 13, flexible member 4 pulls on motion bar
13 are moved to initial position, force the gag lever post 31 on limited block 3 to reinsert to the spacing hole 21 of lifter plate 6, will lift
The temperature of plate 6 is fixed on support post 2, completes the regulation to the height of lifter plate 6；When need adjust clamping device 7 in level side
To position when, pull depression bar 9 upward with hand, the bottom of depression bar 9 removes out of socket 81, and regulation connecting rod 8 is stretching into sleeve
12 length, then unclamps depression bar 9, and depression bar 9 forces depression bar 9 to reinsert to connection in the presence of the second flexible member 10
In the socket 81 of bar 8, connecting rod 8 is fixed in sleeve 12 again.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (10)
1. the experimental provision of student experimenting data accuracy is improved, including base (1), it is characterised in that the top of the base (1)
Portion is provided with support post (2), and support post (2) is provided with lifter plate (6), and lifter plate (6) can be along the axle of support post (2)
Line direction is moved, and the side wall of the support post (2) is provided with sleeve (12), and connecting rod (8), connecting rod are provided with sleeve (12)
(8) can be moved in sleeve (12), described sleeve (12) one end is located in sleeve (12), and the other end is provided with clamping element
(7), and clamping element (7) can rotate around the axis of connecting rod (8), and the clamping device (7) includes the first clip
(71) rotary shaft (19), the first clip and the second clip (72), are additionally provided between the first clip (71) and the second clip (72)
(71) can be rotated with the second clip (72) around rotary shaft (19).
2. the experimental provision according to claim 1 for improving student experimenting data accuracy, it is characterised in that the support
The side wall of column (2) is provided with opening (15), and lifter plate (16) is located in opening (15), and the inwall both sides of opening (15) are equipped with
Groove (22), the both sides of lifter plate (16) are equipped with the projection (17) matched with groove (22), and projection (17) is located at groove
(22) in.
3. the experimental provision according to claim 1 for improving student experimenting data accuracy, it is characterised in that the lifting
Loose slot (16) is additionally provided with plate (6), the both sides of loose slot (16) are equipped with some spacing holes (21).
4. the experimental provision according to claim 3 for improving student experimenting data accuracy, it is characterised in that the support
Fixed block (5) is additionally provided with the top of column (2), fixed block (5) is provided with motion bar (13), and motion bar (13) is horizontal interspersed successively
In fixed block (5) and loose slot (16), and limited block (3) is additionally provided with the end of motion bar (13), limited block (3) is located at
The outside of lifter plate (6), the limited block (3) is provided with two gag lever posts (31), and gag lever post (31) is inserted in spacing hole
(21) in.
5. the experimental provision according to claim 4 for improving student experimenting data accuracy, it is characterised in that the activity
The first flexible member (4) is additionally provided with bar (13), the first flexible member (4) is enclosed on motion bar (13), and the first elasticity member
Part (4) is located between fixed block (5) and lifter plate (6).
6. the experimental provision according to claim 1 for improving student experimenting data accuracy, it is characterised in that the lifting
Transverse slat (11) is additionally provided with the side wall of plate (6), transverse slat (11) is located at the top of sleeve (12), and transverse slat (11) is provided with depression bar (9),
Depression bar (9) can move along the axis direction of transverse slat (11), and the bottom of depression bar (9) is located in sleeve (12).
7. the experimental provision according to claim 6 for improving student experimenting data accuracy, it is characterised in that the depression bar
(9) the second flexible member (10) is also set on, the second flexible member (10) is enclosed on depression bar (9), and the second flexible member (10)
Between sleeve (12) and transverse slat (11).
8. the experimental provision according to claim 6 for improving student experimenting data accuracy, it is characterised in that the connection
Some sockets (81) are additionally provided with bar (8), the bottom of depression bar (9) is located in socket (81), and depression bar (9) is fixed by connecting rod (8)
In sleeve (12).
9. the experimental provision according to claim 1 for improving student experimenting data accuracy, it is characterised in that described first
It is equipped with chimb on clip (71) and the second clip (72), chimb is provided with fastening element (20), and fastening element (20) is by first
Clip (71) and the second clip (72) are fixed together.
10. the experimental provision according to claim 1 for improving student experimenting data accuracy, it is characterised in that the folder
To hold and moving element (14) is additionally provided between element (7) and connecting rod (8), moving element (14) can rotate in connecting rod (8),
And clamping element (7) can follow moving element (14) to rotate together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821126.9A CN107349987B (en) | 2017-09-13 | 2017-09-13 | Experimental device for improve student's experimental data accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821126.9A CN107349987B (en) | 2017-09-13 | 2017-09-13 | Experimental device for improve student's experimental data accuracy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107349987A true CN107349987A (en) | 2017-11-17 |
| CN107349987B CN107349987B (en) | 2020-02-28 |
Family
ID=60291506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710821126.9A Active CN107349987B (en) | 2017-09-13 | 2017-09-13 | Experimental device for improve student's experimental data accuracy |
Country Status (1)
| Country | Link |
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| CN (1) | CN107349987B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204973964U (en) * | 2015-07-06 | 2016-01-20 | 杨妍 | Iron stand platform for high school's chemistry experiments |
| CN205269720U (en) * | 2015-12-29 | 2016-06-01 | 湘潭大学 | Novel brandreth table |
| CN205323818U (en) * | 2016-02-03 | 2016-06-22 | 安金梁 | Lifting rack for physical experiments |
| CN205601228U (en) * | 2016-04-21 | 2016-09-28 | 象山搏远智能科技有限公司 | Mould processing platform of adjustable working height and angle |
| CN206199332U (en) * | 2016-10-17 | 2017-05-31 | 无锡市日升化工有限公司 | A kind of strong chemical industry trestle table of flexibility high-stability |
| CN206343193U (en) * | 2016-11-24 | 2017-07-21 | 山东科技大学 | A kind of Novel brandreth table |
| CN207324884U (en) * | 2017-09-13 | 2018-05-08 | 重庆铜山天询科技有限公司 | The experimental facilities used suitable for physics experiment teaching |
-
2017
- 2017-09-13 CN CN201710821126.9A patent/CN107349987B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204973964U (en) * | 2015-07-06 | 2016-01-20 | 杨妍 | Iron stand platform for high school's chemistry experiments |
| CN205269720U (en) * | 2015-12-29 | 2016-06-01 | 湘潭大学 | Novel brandreth table |
| CN205323818U (en) * | 2016-02-03 | 2016-06-22 | 安金梁 | Lifting rack for physical experiments |
| CN205601228U (en) * | 2016-04-21 | 2016-09-28 | 象山搏远智能科技有限公司 | Mould processing platform of adjustable working height and angle |
| CN206199332U (en) * | 2016-10-17 | 2017-05-31 | 无锡市日升化工有限公司 | A kind of strong chemical industry trestle table of flexibility high-stability |
| CN206343193U (en) * | 2016-11-24 | 2017-07-21 | 山东科技大学 | A kind of Novel brandreth table |
| CN207324884U (en) * | 2017-09-13 | 2018-05-08 | 重庆铜山天询科技有限公司 | The experimental facilities used suitable for physics experiment teaching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107349987B (en) | 2020-02-28 |
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Effective date of registration: 20220113 Address after: 400020 17-10, No. 12, Hongshi Road, Jiangbei District, Chongqing Patentee after: Zhongyu intelligent equipment (Chongqing) Co.,Ltd. Address before: No.6-1-2, 6th floor, Gaochuang Jinye building, No.18, Yuzhou Road, Jiulongpo District, Chongqing 400000 Patentee before: CHONGQING TONGSHAN TIANXUN TECHNOLOGY CO.,LTD. |
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Address after: 401147 17-10, No.12 Hongshi Road, Jiangbei District, Chongqing Patentee after: Da Dao Zhiyuan Technology (Chongqing) Co.,Ltd. Address before: 400020 17-10, No. 12, Hongshi Road, Jiangbei District, Chongqing Patentee before: Zhongyu intelligent equipment (Chongqing) Co.,Ltd. |
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