CN106995777A - A kind of culture medium punches workbench - Google Patents
A kind of culture medium punches workbench Download PDFInfo
- Publication number
- CN106995777A CN106995777A CN201710430622.1A CN201710430622A CN106995777A CN 106995777 A CN106995777 A CN 106995777A CN 201710430622 A CN201710430622 A CN 201710430622A CN 106995777 A CN106995777 A CN 106995777A
- Authority
- CN
- China
- Prior art keywords
- motor
- culture medium
- cut
- elevating mechanism
- objective table
- 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
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M99/00—Subject matter not otherwise provided for in other groups of this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
- B26D5/22—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member and work feed mechanically connected
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
- B26F1/14—Punching tools; Punching dies
Abstract
The present invention relates to field of microbial culture technology, specifically a kind of culture medium punching workbench, it includes base, set and the objective table and card punch on base, the objective table is used to placing and clamping the culture dish filled with culture medium, the card punch is used to punch culture medium, elevating mechanism is provided with the base, the objective table can be lifted periodically so that card punch periodically inserts in culture medium to complete punch operation under the driving of elevating mechanism.The culture medium hole knockout that the present invention has abandoned prior art completely can be greatly lowered the punching workbench of contaminated probability in culture medium drill process there is provided a kind of.
Description
Technical field
The present invention relates to field of microbial culture technology, specially a kind of culture medium punching workbench.
Background technology
Solid-state agar is widely used as culture medium in microculture, in general, and it is all thing to prepare culture medium
First certain thickness solid-state agar is uniformly smeared in culture dish, during specific experiment further according to experiment the need for culture medium is beaten
Hole, any one step is contaminated that all the inaccurate of final result can be caused or even runed counter to completely during being somebody's turn to do, therefore, culture
Base punching work is also to need to reduce the possibility of pollution as far as possible.
In current practice, culture medium punching is all by manually operating, having plenty of by a hollow circular-tube to insert
Enter in culture medium to realize punching, have plenty of using the special-purpose punching device similar to syringe to punch, but either use
Which kind of instrument, it is finally required for top operation instrument of the human hand frequently in culture medium, the dirt that human body is brought during this
Dye is always biological and medical laboratory the problem of a puzzlement.
The content of the invention
To make up the deficiencies in the prior art, the present invention provides a kind of culture medium punching workbench, and the workbench can try one's best
Reduction even completely avoids culture medium in the punching contaminated problem of link.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：A kind of culture medium punches workbench, including
Base, set with the objective table and card punch on base, the objective table be used for place and clamp the culture dish filled with culture medium,
The card punch is used to punch culture medium, elevating mechanism is provided with the base, the objective table is in elevating mechanism
Can periodically it be lifted under driving so that card punch periodically inserts in culture medium to complete punch operation.
It is preferred that, the card punch includes circular cylinder body, the "T"-shaped cut-out bar in circular cylinder body and connected "T"-shaped
The cut-out bar drive mechanism of bar is cut off, the "T"-shaped cut-out bar can be around circular cylinder body under the driving of cut-out bar drive mechanism
Axis rotates.
It is preferred that, the cut-out bar drive mechanism in the card punch links with elevating mechanism, when elevating mechanism motion
During to top dead centre, the cut-out bar drive mechanism in card punch rotates the cut-out for completing culture medium immediately.
It is preferred that, the elevating mechanism is vertically made periodically to pump, and it moves to top dead centre
When keep minibreak, the dead time no less than it is "T"-shaped cut-out bar rotation 180 degree needed for time.
Further, the rotating mechanism rotated for driving objective table is additionally provided with the base, the rotating mechanism makes
Objective table periodically rotates fixed angle, and the rotating mechanism links with elevating mechanism, when elevating mechanism completes a loading
When platform is lifted, driving objective table rotates fixed angle to rotating mechanism immediately.
It is preferred that, the elevating mechanism includes the first motor of cam ejection pin mechanism and driving cam post rod mechanism, described
Rotating mechanism includes intermeshing driving gear, driven gear and the second motor for driving driving gear, the cut-out bar
Drive mechanism is to be fixedly connected at the top of the 3rd motor being fixedly connected with "T"-shaped cut-out bar, the push rod of the cam ejection pin mechanism
Objective table, the driven gear is fixedly mounted in the middle part of push rod, first motor, the second motor and the 3rd motor with control
Device is connected, and the controller controls the rotation of the first motor, the second motor and the 3rd motor.
It is preferred that, first motor, the second motor, the 3rd motor are stepper motor.
It is preferred that, the elevating mechanism is crank slide way mechanism；The rotating mechanism is sheave lever body, the cut-out
Bar drive mechanism is partial gear group and intermeshing many power transmission shafts, and the elevating mechanism is driven by motor, the song
Handle slide way mechanism is driven with sheave lever body by the first pulley mechanism, the sheave lever body and partial gear group
It is driven by the second pulley mechanism.
The beneficial effects of the present invention are：The present invention proposes a kind of new culture medium punching workbench, the workbench energy
The pollution that human factor is caused when enough avoiding punching culture medium, carries out not having moving component and human hand during punch operation in culture
Base top moves operation, greatly reduces the possibility for carrying out pollutant from culture medium upper belt.
Brief description of the drawings
Fig. 1 is the overall schematic of the embodiment of the present invention 1 and 2.
Fig. 2 is the profile of the internal structure of the embodiment of the present invention 1.
Fig. 3 is the card punch schematic diagram of the embodiment of the present invention 1.
Fig. 4 is the internal structure schematic diagram of the embodiment of the present invention 2.
Fig. 5 is the partial internal structure front view after the embodiment of the present invention 2 simplifies.
Fig. 6 is the partial schematic diagram of the crank slide way mechanism of the embodiment of the present invention 2.
In figure：
1- base 2- card punch 3- objective tables
"T"-shaped cut-out bar the first motors of 6- of 4- circular cylinder bodies 5-
7- driving gear 8- driven gears the second motors of 9-
The motor 11- push rod 12- cams of 10- the 3rd
13- spring clip 14- pole 15- ball bearings
16- boss 17- spring 18- motors
19- chute 20- Z-shaped crank 21- bindiny mechanisms
22- rotating cylinder 23- curve chute 24- driving levers
The full tooth driven gears of 25- limited block 26- partial gears 27-
The drive links of 28- the first drive link the second drive links of 29- 20- the 3rd
31- disk 32- stopper slot 33- rotating shafts
34- arc bars.
Embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further with reference to embodiment and accompanying drawing
It is bright, the content that embodiment is referred to not limitation of the invention.
In the description of the invention, it is to be understood that term " on ", " under ", " top ", " bottom ", " interior ", " outer ",
" in " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description this hair
Bright and simplified description, rather than instruction or the signified device of hint or element must be with specific orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Term " multiple " refers to two and two or more, in retouching for the present invention
In stating, unless otherwise prescribed and limit, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be mechanical
Connection or electrical connection or the connection of two element internals, can be joined directly together, can also be indirect by intermediary
It is connected, for the ordinary skill in the art, the concrete meaning of the term can be understood as the case may be.
Embodiment 1
As shown in Figure 1-2, it is provided with a kind of culture medium card punch, including the base 1 that square hollow shell is constituted, the base 1
Cam ejection pin mechanism, driving gear 7, driven gear 8, the first motor 6 and the second motor 9, the cam ejection pin mechanism include convex
Wheel 12 and the push rod 11 located at the top of cam 12, the cam 12 are driven by the first motor 6, and the driven gear 8 is fixedly mounted
On push rod 11, the driving gear 7 is fixedly mounted in the rotating shaft of the second motor 9, the driving gear 7 and driven gear 8
Intermeshing, the push rod 11 stretches out base 1 and is fixedly connected with objective table 3 straight up, and the objective table 3 is put down for circular
Plate, its top, which is provided with multiple spring clips 13 for being used to clamp culture dish, the base 1, is installed with " 7 " font
Pole 14, card punch 2 is installed with the pole 14, the card punch 2 includes circular cylinder body 4, located at circular cylinder body 4
Interior "T"-shaped cut-out bar 5 and the 3rd motor 10 for being fixedly mounted on the top of circular cylinder body 4, the "T"-shaped cut-out bar 5 is T-shape
Steel wire, the "T"-shaped steel wire one end connects the 3rd motor 10, and the other end passes through circular cylinder body 4 and extends the bottom end of circular cylinder body 4
Face；It is additionally provided with the base 1 for controlling the first motor 6, the second motor 9 and the controller of the 3rd motor 10（In accompanying drawing not
Show）, the base side be additionally provided with connection controller multiple control buttons（It can also be one, specific arrangement needs
Set according to the function of controller）.
It should be noted that to realize punch operation, the work schedule of the first motor 6, the second motor 9 and the 3rd motor 10
It should carry out in accordance with the following steps（Give tacit consent to original state push rod 11 and be located at lower dead center）：
S1. the motor shaft of the first motor 6 rotates 180 ° and cam 12 is rotated 180 ° and promote push rod 11 to rise to top dead centre, loading
Platform rises with push rod and card punch is inserted into culture medium.
S2. the 3rd motor 10 drives "T"-shaped cut-out bar to rotate 180 °, completes the cut-out of culture medium.
S3. the motor shaft of the first motor 6 rotates 180 °, and push rod 11 returns to lower dead center
S4. the second motor 9 is rotated, and driving driven gear rotates fixed angle（The angle is preset by controller）
Hereafter the punching that abovementioned steps carry out other hole positions is repeated.
Further, first motor 6, the second motor 9 and the 3rd motor 10 are stepper motor.
Using stepper motor the card punch 2 of whole device, objective table 3 can be made to keep its state, Bu Huiyin at work
Cause its position or rotational angle to change for factors such as external force or vibrations, finally improve the arriving for quality of punching.
Further, the height of the pole can be adjusted.
Further, the position on base 1 of first motor 6 can be adjusted up and down.
Adjust the height of pole and the height of the first motor 6 is for realizing the change of punching depth.Pole is designed
The change of pole height can be realized as the structure that can be stretched, and the height for adjusting the first motor 6 then can be by increasing
If a motor cabinet, it will allow between motor cabinet and base and be connected by multiple screw rods, to those skilled in the art, this is
It is easily achieved.
Further, provided with the ball bearing for being easy to push rod to rotate between the base 1 and push rod 11（15）.
Further, it is additionally provided with the push rod 11 between a circle boss 16, boss 16 and base 1 top and is additionally provided with bullet
Spring 17, the bottom of the push rod 11 can remain the profile contacts with cam 12 in the presence of spring 17.
As long as it should be noted that the arrangement of spring can realize that the bottom of push rod 11 can be protected with the profile of cam all the time
Contact is held, to those skilled in the art, also many other arrangements.
The application method and operation principle of the present embodiment be：The culture dish that will be equipped with culture medium is placed on objective table 3, is made
Clamp culture dish with spring clip 13, button press, now the first motor 6 rotate 180 degree immediately, the cam 12 rotates 180 degree
Push rod 11 is set to run to top dead centre and keep the position, at this moment card punch 2 is actually already inserted into culture medium, then the 3rd motor
10 driving T-steel silks rotate at least 180 degree（Culture medium is cut off）, the 3rd motor 10 stops operating after the completion of cut-out,
First motor 6 rotates 180 degree again makes push rod 11 run to lower dead center, and the culture medium of cut-out is to be pulled out culture medium, completes the
One punching, followed by the second motor 9 starts to rotate fixed angle under the control of the controller（This angle can pass through control
Device processed is preset）, repeat the punching that foregoing step carries out second hole；So repeat, until completing 360 degree of culture medium
Several hole positions punching（Certainly, operator, which can also select to have beaten Arbitrary Digit metering-orifice, stops）.
It should be noted that the first motor 6, the second motor 9 and the 3rd motor 10 are by controller in such scheme
Default program is controlled, the design of program and improve and non-invention innovation, also, to realize above-mentioned motor work
The program of sequential is simultaneously uncomplicated, is fully able to realize as those skilled in the art, certainly, the first motor 6 in the present embodiment,
Second motor 9 and the 3rd motor 10 can not also be controlled by controller, can be worked by three switches come controller, nothing
By any mode is used, protection scope of the present invention should be all included in, creativeness of the invention is the provision of a kind of brand-new
Culture medium drilling method, avoid carrying out the pollution that any human hand or equipment movement may be brought above culture medium completely.
Embodiment 2
The objective table of embodiment 2 and embodiment 1, the shape of base are identical, and the objective table 3 is also fixedly mounted on push rod 11,
It is main difference is that elevating mechanism, rotating mechanism and the construction difference for cutting off bar drive mechanism of embodiment 2.Specifically
Ground, the elevating mechanism includes a motor 18 and the crank slide way mechanism driven by the motor 18, the driving
Motor 18 is fixedly mounted in base, and crank slide way mechanism includes chute 19, the Z-shaped being connected in driving motor output shaft
Crank 20, the chute 19 is semicircle, and the chute 19 is fixedly mounted on the bottom of push rod 11, the radius of Z-shaped crank 20
Equal with the radius of chute 19, in its one end insertion chute 19, the other end is fixedly connected with the motor shaft of motor 18, the push rod
11 do periodically up and down motion under the driving of crank slide way mechanism；11 points of the push rod is upper and lower two sections, and epimere is intersegmental with
Provided with bindiny mechanism 21, the epimere and hypomere can relatively rotate around the axis of push rod 11；The rotating mechanism is by dialling
Bar rotating cylinder mechanism is constituted, and the driving lever rotating cylinder mechanism includes the cylindrical rotating cylinder 22 being movably arranged on push rod 11, described turn
22 outer surfaces of cylinder are provided with curve chute 23, and the driving lever 24 is fixedly mounted in a rotating shaft 34, the rotating shaft 34 and rotating cylinder 22
Axial space is vertical, and when rotating lever 24, the rotating cylinder 22 rotates therewith, when driving lever 24 skids off curve chute 23,
The rotating cylinder 22 is stopped operating, particularly, and the push rod 11 is connected with rotating cylinder 23 using key, and the push rod 11 can be in rotating cylinder
It is axially moveable, certainly, in order to ensure the connection between rotating cylinder 22 and driving lever 24, is all provided with above and below rotating cylinder in 22 endoporus
Limited location block（Not shown in accompanying drawing）, limited block is restricted from moving up and down；The cut-out bar drive mechanism includes one
Individual external toothing partial gear group and some intermeshing drive links, the external toothing partial gear group are endless including one
All gear 26 and a full tooth driven gear 27, the partial gear 26 and full tooth driven gear 27 are intermeshed, described complete
The middle part of tooth driven gear 27 is also installed with the first drive link 28 that a radicle is provided with bevel gear, the "T"-shaped cut-out
Bar top is fixedly mounted on the second drive link 29 of the end provided with bevel gear, and first drive link 28 and second is driven
Connected between bar 29 by threeth drive link 30 of the two ends provided with bevel gear.
It is preferred that, the upper and lower part of the rotating cylinder, which is equipped with disk 31, the disk 31, to be provided with and curve chute 23
The arc bar 34 that central angle is 90 ° is also installed with the stopper slot 32 of mutual cooperation, the rotating shaft 33, when arc bar 34 slips into limit
During the groove 32 of position, rotating cylinder 22 is rotated by limitation.
As described in Figure 3, passed between the elevating mechanism, rotating mechanism and cut-out bar rotating mechanism by belt pulley
Dynamic, its operation principle is, when being powered to motor 18, and the elevating mechanism, rotating mechanism and cut-out bar rotating mechanism are
Start running, when the Z-shaped crank 20 of crank slide way mechanism goes to upper half, the push rod 11 is located at top dead centre, card punch 2
Insert in culture medium, now the arc bar 35 of rotating mechanism is included in curve chute 23, rotating cylinder 22 is rotated by limitation, and cuts off bar cut-out
The partial gear group of mechanism starts engagement, and drives "T"-shaped cut-out bar 5 to start to cut off culture medium.Motor 18
It is rotated further, now "T"-shaped cut-out bar 5 is persistently cut off to culture medium, is run when motor 18 goes to Z-shaped crank 20
During to lower half, the push rod 11 starts to move down, while arc bar 35 is also in the inner slide of curve chute 23, when push rod 11 is run
To after bottom dead center, arc bar 35 marks curve chute 23 completely, and driving lever 24 starts to be included in curve chute 23, and 22 turns of rotating cylinder is driven immediately
Dynamic, when driving lever 24 marks curve chute 23 again, the Z-shaped crank 20 is run to upper half again, so continues to repeat
Aforementioned activities complete the punching of next hole position.
In order to realize the collaborative work between above-mentioned part, on partial gear group, belt pulley and rotating cylinder 22
The grade all parts of curve chute 23 are required for by corresponding specific design and calculating, to those skilled in the art, this
All should easily it realize, the design parameter that part is not just directed to herein makees excessive description.
It should be noted that accompanying drawing 2 illustrate only the specific thin of lifting structure, rotating mechanism and cut-out bar drive mechanism
Section, specific arrangement is not all done for installation the specification and drawings of its all parts on base, for allowing this specification
Literal succinct and protrusion emphasis consideration, the present invention does not just do excessive description to this, but has to, these parts
Arrangement is all easily achieved to those skilled in the art.
Above-mentioned two embodiment is the present invention preferably implementation, in addition, and the present invention can be real with other manner
Existing, any obvious replacement is within protection scope of the present invention on the premise of the technical program design is not departed from.
In order to allow those of ordinary skill in the art more easily to understand improvements of the present invention relative to prior art, this
Some accompanying drawings of invention and description have been simplified, and for the sake of clarity, present specification is omitted some other members
Element, those of ordinary skill in the art should be aware that these elements omitted also may make up present disclosure.
Claims (8)
1. a kind of culture medium punches workbench, including base（1）, located at base（1）On objective table（3）And card punch（2）, institute
State objective table（3）For placing and clamping the culture dish filled with culture medium, the card punch（2）For being beaten culture medium
Hole, the base（1）It is interior to be provided with elevating mechanism, the objective table（1）Can periodically it be lifted under the driving of elevating mechanism
So that card punch（2）Periodically insert in culture medium to complete punch operation.
2. culture medium according to claim 1 punches workbench, it is characterised in that：The card punch（2）Including circular cylinder
Body（4）, located at circular cylinder body（4）Interior "T"-shaped cut-out bar（5）With the "T"-shaped cut-out bar of connection（5）Cut-out bar drive mechanism,
The "T"-shaped cut-out bar（5）Can be around circular cylinder body under the driving of cut-out bar drive mechanism（4）Axis rotation.
3. culture medium according to claim 2 punches workbench, it is characterised in that：The card punch（2）Interior cut-out bar
Drive mechanism links with the elevating mechanism, when the elevating mechanism moves to top dead centre, card punch（2）Interior cut-out bar drives
Motivation structure rotates the cut-out for completing culture medium immediately.
4. the culture medium punching workbench according to claim 1-3, it is characterised in that：The elevating mechanism is vertically
Work periodically pumps, and it keeps minibreak when moving to top dead centre, and the dead time is no less than "T"-shaped cut
Disconnected bar（5）Rotate the time needed for 180 degree.
5. the culture medium punching workbench according to claim 1-4, it is characterised in that：The base（1）Inside it is additionally provided with use
In driving objective table（3）The rotating mechanism of rotation, the rotating mechanism makes objective table（3）Periodically rotate fixed angle, institute
State rotating mechanism to link with elevating mechanism, when elevating mechanism completes an objective table（3）During lifting, rotating mechanism drives load immediately
Thing platform（3）Rotate fixed angle.
6. culture medium according to claim 5 punches workbench, it is characterised in that：The elevating mechanism includes cam follower
First motor of mechanism and driving cam post rod mechanism（6）, the rotating mechanism include intermeshing driving gear（7）, from
Moving gear（8）And driving driving gear（7）The second motor（9）, the cut-out bar drive mechanism is and "T"-shaped cut-out bar
（5）The 3rd motor being fixedly connected（10）, the push rod of the cam ejection pin mechanism（11）Top is fixedly connected with objective table（2）, institute
State driven gear（8）It is fixedly mounted on push rod（11）Middle part, first motor（6）, the second motor（9）With the 3rd motor（10）
It is connected with controller, the controller controls the rotation of the first motor, the second motor and the 3rd motor.
7. the culture medium punching workbench according to right 6, it is characterised in that：First motor（6）, the second motor（9）、
3rd motor（10）It is stepper motor.
8. culture medium according to claim 5 punches workbench, it is characterised in that：The elevating mechanism is slide crank scouring machine
Structure；The rotating mechanism is sheave lever body, and the cut-out bar drive mechanism is partial gear group and intermeshing many
Root power transmission shaft, the elevating mechanism is by motor（18）Driving, the crank slide way mechanism passes through skin with sheave lever body
Belt wheel transmission, the sheave lever body passes through another group of pulley drive with partial gear group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710430622.1A CN106995777A (en) | 2017-06-09 | 2017-06-09 | A kind of culture medium punches workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710430622.1A CN106995777A (en) | 2017-06-09 | 2017-06-09 | A kind of culture medium punches workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106995777A true CN106995777A (en) | 2017-08-01 |
Family
ID=59436086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710430622.1A Pending CN106995777A (en) | 2017-06-09 | 2017-06-09 | A kind of culture medium punches workbench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106995777A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809847A (en) * | 2017-11-20 | 2018-03-16 | 上海御渡半导体科技有限公司 | A kind of clamping for adapting to different shape circuit board and perforating mechanism |
| CN108309342A (en) * | 2018-02-13 | 2018-07-24 | 练陈敏 | A kind of liftable image department radiation protection inspection desk |
| CN108437046A (en) * | 2018-04-13 | 2018-08-24 | 湖州师范学院 | A kind of biconvex wheel drive card punch |
| CN112265028A (en) * | 2020-10-09 | 2021-01-26 | 吴艳 | Neat device is repaiied in foam ground mat concatenation notch intercepting |
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| CN108437046B (en) * | 2018-04-13 | 2024-04-23 | 湖州师范学院 | Double-cam driving puncher |
| CN112265028A (en) * | 2020-10-09 | 2021-01-26 | 吴艳 | Neat device is repaiied in foam ground mat concatenation notch intercepting |
| CN112265028B (en) * | 2020-10-09 | 2022-04-22 | 绍兴给力体育休闲用品有限公司 | Neat device is repaiied in foam ground mat concatenation notch intercepting |
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