CN209047537U - Aural-comprehension Training device - Google Patents
Aural-comprehension Training device Download PDFInfo
- Publication number
- CN209047537U CN209047537U CN201820749768.2U CN201820749768U CN209047537U CN 209047537 U CN209047537 U CN 209047537U CN 201820749768 U CN201820749768 U CN 201820749768U CN 209047537 U CN209047537 U CN 209047537U
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- jigsaw
- desktop
- jacking block
- driving
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Abstract
The utility model provides a kind of Aural-comprehension Training device, belong to teaching aid technical field, including desk body, desktop and the left jigsaw and right jigsaw that are respectively hinged at desktop two sides, the top of desk body is arranged in desktop, the left overturning driving portion for driving left jigsaw overturning is vertically installed on left jigsaw, the right overturning driving portion for driving right jigsaw overturning is vertically installed on right jigsaw, the jigsaw driving mechanism for driving left overturning driving portion and right overturning driving portion movement is provided between desktop and desk body, the rear end of desktop is also hingedly provided with multimedia play equipment.Teaching of English Listening folding table provided by the utility model, it is provided with the left jigsaw and right jigsaw that folding and unfolding can be carried out by jigsaw driving mechanism, when in use, left jigsaw, right jigsaw and desktop constitute a big desktop, or left jigsaw, right jigsaw and multimedia play equipment overturning constitute an independent space and are easy to use, it is flexible and convenient to use, it is conducive to improve Aural-comprehension Training effect.
Description
Technical field
The utility model belongs to teaching aid technical field, is to be related to a kind of Aural-comprehension Training device more specifically.
Background technique
Existing most of Aural-comprehension Training devices are fairly simple, and baffle is only used only and separates station, is then taught
And Listening Training will affect teachers teaching, the effect that do not separate if baffle is too low when the excessive height of baffle
Fruit is easy to distract the attention of the students, and affects the effect of Aural-comprehension Training.
Utility model content
The purpose of this utility model is to provide Aural-comprehension Training devices, it is intended to solve existing Aural-comprehension Training device
Baffle plate setting is unreasonable, influences the problem of training Listening Training effect.
In order to achieve the above purposes, the technical solution adopted by the utility model is: provides Aural-comprehension Training device, comprising: packet
Desk body, desktop and the left jigsaw and right jigsaw that are respectively hinged at desktop two sides are included, the top of desk body, institute is arranged in the desktop
The left overturning driving portion for being vertically installed on left jigsaw and driving the left jigsaw overturning is stated, is vertically installed with drive on the right jigsaw
The right overturning driving portion for moving the right jigsaw overturning, is provided with for driving left overturning driving portion to turn over the right side between desktop and desk body
Turn the mobile jigsaw driving mechanism of driving portion, the rear end of the desktop is also hingedly provided with multimedia play equipment；
The jigsaw driving mechanism includes the fixed block that desk body center of top front and rear sides are arranged in, activity is set respectively
Set moving left jacking block, moving right jacking block and described move left jacking block for driving, move to right at left and right sides of the fixed block
Dynamic jacking block synchronizes mobile driving device；
The desktop is fixed at the top of fixed block；
The driving device includes left V shape pole, right V shape pole, screw rod and drive rod, is provided with left support on the fixed block
Bar and right support bar, the bending part of the left V shape pole are rotatably connected on left support bar by shaft, a left side for the left V shape pole
End rotation is provided with left pinch roller, and left pinch roller is bonded setting with the right side for moving left jacking block, and the bending part of the right V shape pole passes through
Shaft is rotatably connected on right support bar, and the rotation of the right end of the right V shape pole is provided with right pinch roller, right pinch roller and moves right jacking block
Left side be bonded setting, one end of the screw rod and drive rod are rotatablely connected, and screw rod is screwed onto described solid by helicitic texture
Determine on block, be provided with cylindrical bar on the drive rod, is respectively cooperating with the circle on the left of the right side of the left V shape pole, right V shape pole
Mast is provided with left elongated slot, right elongated slot, and in left elongated slot and right elongated slot, the other end of the screw rod is arranged for cylindrical bar sliding plug
There is device of rotation driving；
It is described to move left jacking block and move right and be respectively arranged with left shank and right shank on jacking block, on the fixed block
It is respectively cooperating with the left shank and right shank is provided with left inserting groove and right inserting groove, the left shank and left inserting groove
Between be provided with Zola's spring, be provided with right tension spring between the right shank and right inserting groove；
Described to move left jacking block and move right jacking block in the initial state, the top surface for moving left jacking block is resisted against a left side and turns over
Turn that left jigsaw is maintained at horizontality on driving portion, the top surface for moving right jacking block is resisted against will be right on right overturning driving portion
Jigsaw is maintained at horizontality, and the upper surface of the left jigsaw, desktop and right jigsaw three is equal；
Described to move left jacking block and move right jacking block in the state of ejection, the top surface for moving left jacking block is resisted against a left side and turns over
Turn that left jigsaw is maintained at vertical state on driving portion, the top surface for moving right jacking block is resisted against will be right on right overturning driving portion
Jigsaw is maintained at vertical state, and the left jigsaw and the right jigsaw are respectively positioned on the upside of desktop.
Further, the left jigsaw is provided with the sound equipment being connected with multimedia play equipment with the top surface of right jigsaw,
The cover board for the closed sound equipment is additionally provided on the outside of the sound equipment.
Further, the cover board is slidably connected with the desktop, is additionally provided on the cover board for driving the cover board
The handle of sliding.
Further, the device of rotation driving is rotation hand wheel.
Further, the device of rotation driving is servo motor.
Further, described to move left between jacking block and desktop, move right and be provided with torque bullet between jacking block and desktop
Spring, torsion spring, which is intended to force, described to be moved left jacking block and moves right jacking block and rotate towards the direction for the side wall for being affixed to desk body.
Further, storage chamber is provided in the desk body.
Further, the desktop is equipped with the Dan Ding mechanism for positioning the multimedia play equipment.
Further, the bottom of the desk body is provided with movable pulley and desk body lifting device.
Further, the desk body lifting device includes hydraulic cylinder and crane, and the hydraulic cylinder is fixed at table
On body, crane is fixed at the bottom of hydraulic cylinder, and when crane is moved to top dead-centre, movable pulley connects with ground
Touching, when crane is moved to bottom dead centre, movable pulley is hanging.
The beneficial effect of Aural-comprehension Training device provided by the utility model is: compared with prior art, this is practical new
Type Aural-comprehension Training device is provided with the left jigsaw and right jigsaw that folding and unfolding can be carried out by jigsaw driving mechanism, uses giving lessons
When, left jigsaw, right jigsaw and desktop constitute a big desktop, can carry out accessible teaching operation, are easy to use, listen
When power hands-on, left jigsaw is overturn with right jigsaw to the upside of vertical desktop, multimedia play equipment is overturn to vertical
The upside of desktop, left jigsaw, right jigsaw and multimedia play equipment constitute individual Listening Training space, can carry out hearing reality
Border training, the baffle of the utility model Aural-comprehension Training device can be overturn, and facilitated Teaching Listening Comprehension explanation and hands-on, mentioned
The high effect of Listening Training, substantially increases quality of instruction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Aural-comprehension Training device provided by the embodiment of the utility model；
Fig. 2 be Fig. 1 in A-A to partial sectional view；
Fig. 3 is the partial enlarged view in Fig. 2 at B；
Fig. 4 is the top view of Fig. 1；
Fig. 5 is the rollover states figure of Aural-comprehension Training device provided by the embodiment of the utility model；
Fig. 6 is the attachment structure schematic diagram of desktop provided by the embodiment of the utility model and multimedia play equipment.
Wherein, each appended drawing reference in figure:
1- desk body；2- desktop；2a- holding tank；2b- ejector pin；2c- spring；The left jigsaw of 3-；The left overturning driving portion of 3a-；4- is right
Jigsaw；The right overturning driving portion of 4a-；5- fixed block；The left inserting groove of 5a-；The right inserting groove of 5b-；6- moves left jacking block；The left guiding of 6a-
Face；7- moves right jacking block；The right guide surface of 7a-；The left V shape pole of 8-；The left elongated slot of 8a-；The right V shape pole of 9-；The right elongated slot of 9a-；10- screw rod；
11- drive rod；11a- cylindrical bar；12- left support bar；13- right support bar；The left pinch roller of 14-；The right pinch roller of 15-；The left shank of 16-；
The right shank of 17-；18- Zola's spring；The right tension spring of 19-；20- multimedia play equipment；The first card slot of 20a-；The second card slot of 20b-；
21- sound equipment；The left hook of 22-；The right hook of 23-；24- rotation hand wheel；25- placing groove；27- storage chamber；28- bearing；29- is hydraulic
Cylinder；30- crane；31- movable pulley；32, cover board；33, handle.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Also referring to Fig. 1 to Fig. 4, now Aural-comprehension Training device provided by the utility model is illustrated.The English
Language hearing trainer, including desk body 1, desktop 2 and the left jigsaw 3 and right jigsaw 4 that are respectively hinged at 2 two sides of desktop, desktop 2 is set
Set the left overturning driving portion 3a for being vertically installed on the top of desk body 1, left jigsaw 3 and the left jigsaw 3 being driven to overturn, right jigsaw
It is vertically installed with the right overturning driving portion 4a for driving right jigsaw 4 to overturn on 4, is provided between desktop 2 and desk body 1 for driving a left side
The mobile jigsaw driving mechanism of driving portion 3a and right overturning driving portion 4a is overturn, the rear end of desktop is also hingedly provided with multimedia and broadcasts
Put equipment 20；
Jigsaw driving mechanism includes the fixed block 5 that 1 center of top front and rear sides of desk body are arranged in, is movably arranged on respectively admittedly
Determine moving left jacking block 6, moving right jacking block 7 and driving moves left jacking block 6, moves right jacking block 7 and synchronize for the left and right sides of block 5
Mobile driving device；
Desktop 2 is fixed at the top of fixed block 5；
Driving device includes left V shape pole 8, right V shape pole 9, screw rod 10 and drive rod 11, is provided with left support on fixed block 5
Bar 12 and right support bar 13, the bending part of left V shape pole 8 are rotatably connected on left support bar 12 by shaft, a left side for left V shape pole 8
End rotation is provided with left pinch roller 14, and left pinch roller 14 is bonded setting with the right side for moving left jacking block 6, and the bending part of right V shape pole 9 is logical
Shaft is crossed to be rotatably connected on right support bar 13, the rotation of the right end of right V shape pole 9 is provided with right pinch roller 15, right pinch roller 15 with move to right
The left side of dynamic jacking block 7 is bonded setting, and one end of screw rod 10 and drive rod 11 are rotatablely connected, and screw rod 10 is spirally connected by helicitic texture
On fixed block 5, cylindrical bar 11a is provided on drive rod 11, the right side of left V shape pole 8, the left side of right V shape pole 9 are respectively cooperating with circle
Mast 11a is provided with left elongated slot 8a, right elongated slot 9a, and cylindrical bar 11a sliding plug is in left elongated slot 8a and right elongated slot 9a, screw rod 10
The other end be provided with device of rotation driving；
It moves left jacking block 6 and moves right and be respectively arranged with left shank 16 and right shank 17 on jacking block 7, on fixed block 5
It is respectively cooperating with left shank 16 and right shank 17 is provided with left inserting groove 5a and right inserting groove 5b, left shank 16 and left grafting
It is provided with Zola's spring 18 between slot 5a, right tension spring 19 is provided between right shank 17 and right inserting groove 5b；
It moves left jacking block 6 and moves right jacking block 7 in the initial state, the top surface for moving left jacking block 6 is resisted against left jigsaw 3
Left jigsaw 3 is maintained at horizontality on bottom surface, the top surface for moving right jacking block 7 is resisted against right jigsaw 4 on the bottom surface of right jigsaw 4
It is maintained at horizontality, the upper surface of 4 three of left jigsaw 3, desktop 2 and right jigsaw is equal；
It moves left jacking block 6 and moves right jacking block 7 in the state of ejection, the top surface for moving left jacking block 6 is resisted against left jigsaw 3
Left jigsaw 3 is maintained at vertical state on bottom surface, the top surface for moving right jacking block 7 is resisted against right jigsaw 4 on the bottom surface of right jigsaw 4
It is maintained at vertical state, left jigsaw 3 and right jigsaw 4 overturn the upside for being maintained at desktop.It is listened with multimedia play equipment composition
The space of power training.
The use principle of the utility model are as follows: screw rod 10 is rotated by rotation drive device, so that screw rod 10 is mobile, in turn
Drive drive rod 11 mobile, the swing for driving left and right V shape pole to synchronize therewith will move left jacking block 6, move right jacking block 7 together
Step pushes away outward or cooperates left and right tension spring to move left jacking block 6, moves right that jacking block 7 is synchronous to be moved inward, so
Realize the movement that moves left jacking block 6, move right jacking block 7, move left jacking block 6, move right jacking block 7 abut against left overturning driving portion 3a and
Right overturning driving portion 4a movement, and then control the rollover states of left jigsaw 3 and right jigsaw 4.
Specific working forms are as follows: original state: referring to Fig. 1, when moving left jacking block 6, moving right jacking block 7 to initial
When state, jacking block 6 is moved left, jacking block 7 is moved right and bears against left overturning driving portion 3a and right overturning driving portion 4a, and stud
Left jigsaw 3 and right jigsaw 4, so that left jigsaw 3, right jigsaw 4 are equal with the upper surface of desktop 2, expansion bearing area, convenient for making
With.
Rollover states: referring to Fig. 5, when moving left jacking block 6, moving right jacking block 7 and move outward, top is moved left
Block 6 moves right jacking block 7 and abuts against left overturning driving portion 3a and right overturning driving portion 4a respectively and moves, left overturning driving portion 3a and the right side
It overturns driving portion 4a respectively to overturn vertically fixed left jigsaw 3 and right jigsaw 4 to the upside of desktop 2, overturns multimedia at this time
Playback equipment 2 may make up independent trained space, and easy to use, effect is good.Facilitate Teaching of English Listening and training.
Further, a kind of specific embodiment as Aural-comprehension Training device provided by the utility model, left jigsaw 3
The top surface of right jigsaw 4 is provided with the sound equipment 21 being connected with multimedia play equipment 20, the outside of sound equipment 21, which is additionally provided with, to be used for
The cover board 32 of the closed sound equipment.Cover board 32, which is arranged, can keep sound equipment 21 by the interference of dust, not keep the clean of sound equipment, prolong
Service life is grown.The equipment that multimedia play equipment 20 can have voice play function for recorder, laptop etc.,
It is connect by route with sound equipment 21.
Further, a kind of specific embodiment as Aural-comprehension Training device provided by the utility model, cover board 32
It is slidably connected with desktop 2, the handle 33 for driving cover board 32 to slide is additionally provided on cover board 32, facilitates hand-held.Left jigsaw 3
It is respectively arranged with left hook 22 and right hook 23 with the bottom of right jigsaw 4, jacking block 6 is moved left and moves right the upper corners of jacking block 7
It is separately provided for driving and being oriented to left overturning driving portion 3a in portion and the left guide surface 6a of right overturning driving portion 4a is led with the right side
To face 7a.
Further, a kind of specific embodiment as Aural-comprehension Training device provided by the utility model, rotation are driven
Dynamic device is rotation hand wheel 24.
Further, a kind of specific embodiment as Aural-comprehension Training device provided by the utility model, rotation are driven
Dynamic device is servo motor, and servo motor is mounted on fixed block 5.
Further, a kind of specific embodiment as Aural-comprehension Training device provided by the utility model further includes
Earphone, for connecting with multimedia, connection earphone carries out stand-alone training, or synchronizes training using sound equipment.
Further, a kind of specific embodiment as Aural-comprehension Training device provided by the utility model, left jigsaw 3
Between desktop 2, torsion spring (not shown) is provided between right jigsaw 4 and desktop 2, torsion spring is intended to force
Left jigsaw 3 is rotated with right jigsaw 4 towards horizontal direction.
Further, referring to Fig. 4, a kind of specific embodiment party as Aural-comprehension Training device provided by the utility model
Formula is provided with placing groove 25 in right layout 4, for placing the tools such as pen, avoids rolling down on the ground.
Further, 1,4 and Fig. 5 is please referred to, one kind as Aural-comprehension Training device provided by the utility model is specific
Embodiment is provided with cup placing groove on desktop 2.
Further, refering to fig. 1 and Fig. 5, a kind of specific reality as Aural-comprehension Training device provided by the utility model
Mode is applied, storage chamber 27 is provided in desk body 1.
Further, a kind of specific embodiment party refering to Fig. 6, as Aural-comprehension Training device provided by the utility model
Formula, desktop 2 are equipped with the Dan Ding mechanism for position multimedia playback equipment 20.Dan Ding mechanism includes the appearance being arranged on desktop
Receive slot 2a, be arranged in holding tank 2a and the ejector pin 2b being slidably matched with holding tank 2a and the use being arranged in holding tank 2a
In mentioning 2b for the spring 2c of elastic force for ejector pin；The top of ejector pin 2b is spherical, and multimedia play equipment 2 is equipped with for card
The the first card slot 20a and the second card slot 20b for connecing ejector pin, when multimedia play equipment is horizontally arranged on desktop, ejector pin is located at
In first card slot 20a；When multimedia play equipment is placed vertically on desktop, ejector pin is located in the second card slot 20b.Multimedia
The side of playback equipment 20 is additionally provided with sealing strip, and sealing strip can be rubber strip alternatively, 20 side of multimedia play equipment is arranged
There is sliding slot, is equipped with seal weatherstrip in sliding slot.
Further, Fig. 2 to Fig. 3 is please referred to, one kind as Aural-comprehension Training device provided by the utility model is specific
Embodiment, drive rod 11 are rotatablely connected with screw rod 10 by bearing 28.
Further, Fig. 1 and Fig. 5 is please referred to, a kind of tool as Aural-comprehension Training device provided by the utility model
Body embodiment, the bottom of desk body 1 are provided with movable pulley 31 and desk body lifting device, and 1 lifting device of desk body includes hydraulic cylinder
29 and crane 30, hydraulic cylinder 29 be fixed in desk body 1, crane 30 is fixed at the bottom of hydraulic cylinder 29, when
When crane 30 is moved to top dead-centre, movable pulley 31 and ground face contact are easy to remove, when crane 30 is moved to bottom dead centre
When, movable pulley 31 is hanging, and crane 30 plays the role of stablizing support.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. Aural-comprehension Training device, it is characterised in that: including desk body, desktop and be respectively hinged at the left jigsaw of desktop two sides with
The top of desk body is arranged in right jigsaw, the desktop, and the left side for driving the left jigsaw overturning is vertically installed on the left jigsaw
Driving portion is overturn, the right overturning driving portion for driving the right jigsaw overturning, desktop and desk body are vertically installed on the right jigsaw
Between be provided with for driving left overturning driving portion and the mobile jigsaw driving mechanism of right overturning driving portion, the rear end of the desktop
Also hingedly it is provided with multimedia play equipment；
The jigsaw driving mechanism includes the fixed block that desk body center of top front and rear sides are arranged in, is movably arranged on respectively
Moving left jacking block, moving right jacking block and described move left jacking block for driving, move right top at left and right sides of the fixed block
Block synchronizes mobile driving device；
The desktop is fixed at the top of fixed block；
The driving device includes left V shape pole, right V shape pole, screw rod and drive rod, be provided on the fixed block left support bar with
The bending part of right support bar, the left V shape pole is rotatably connected on left support bar by shaft, and the left end of the left V shape pole turns
Dynamic to be provided with left pinch roller, left pinch roller is bonded setting with the right side for moving left jacking block, and the bending part of the right V shape pole passes through shaft
It is rotatably connected on right support bar, the right end rotation of the right V shape pole is provided with right pinch roller, right pinch roller and the left side for moving right jacking block
End face fitting setting, one end of the screw rod and drive rod are rotatablely connected, and screw rod is screwed onto the fixed block by helicitic texture
On, it is provided with cylindrical bar on the drive rod, is respectively cooperating with the cylindrical bar on the left of the right side of the left V shape pole, right V shape pole
It is provided with left elongated slot, right elongated slot, in left elongated slot and right elongated slot, the other end of the screw rod, which is provided with, to be turned for cylindrical bar sliding plug
Dynamic driving device；
It is described to move left jacking block and move right and be respectively arranged with left shank and right shank on jacking block, distinguish on the fixed block
The left shank and right shank is cooperated to be provided with left inserting groove and right inserting groove, between the left shank and left inserting groove
It is provided with Zola's spring, is provided with right tension spring between the right shank and right inserting groove；
Described to move left jacking block and move right jacking block in the initial state, the top surface for moving left jacking block is resisted against left overturning and drives
Left jigsaw is maintained at horizontality in dynamic portion, the top surface for moving right jacking block is resisted against right jigsaw on right overturning driving portion
It is maintained at horizontality, the upper surface of the left jigsaw, desktop and right jigsaw three is equal；
Described to move left jacking block and move right jacking block in the state of ejection, the top surface for moving left jacking block is resisted against left overturning and drives
Left jigsaw is maintained at vertical state in dynamic portion, the top surface for moving right jacking block is resisted against right jigsaw on right overturning driving portion
It is maintained at vertical state, the left jigsaw and the right jigsaw are respectively positioned on the upside of desktop.
2. Aural-comprehension Training device as described in claim 1, it is characterised in that: the top surface of the left jigsaw and right jigsaw is arranged
There is the sound equipment being connected with multimedia play equipment, the cover board for the closed sound equipment is additionally provided on the outside of the sound equipment.
3. Aural-comprehension Training device as claimed in claim 2, it is characterised in that: the cover board is slidably connected with the desktop,
The handle for driving the cover board sliding is additionally provided on the cover board.
4. Aural-comprehension Training device as described in claim 1, it is characterised in that: the device of rotation driving is rotation hand wheel.
5. Aural-comprehension Training device as described in claim 1, it is characterised in that: the device of rotation driving is servo motor.
6. Aural-comprehension Training device as described in claim 1, it is characterised in that: described to move left between jacking block and desktop, is right
It is provided with torsion spring between mobile jacking block and desktop, torsion spring, which is intended to force, described to be moved left jacking block and move right top
Block is rotated towards the direction for the side wall for being affixed to desk body.
7. Aural-comprehension Training device as described in claim 1, it is characterised in that: be provided with storage chamber in the desk body.
8. Aural-comprehension Training device as described in claim 1, it is characterised in that: the desktop is equipped with described more for positioning
The Dan Ding mechanism of apparatus for media playing.
9. Aural-comprehension Training device as described in claim 1, it is characterised in that: the bottom of the desk body be provided with movable pulley with
And desk body lifting device.
10. Aural-comprehension Training device as claimed in claim 9, it is characterised in that: the desk body lifting device includes hydraulic cylinder
And crane, the hydraulic cylinder are fixed in desk body, crane is fixed at the bottom of hydraulic cylinder, when crane moves
When moving top dead-centre, movable pulley and ground face contact, when crane is moved to bottom dead centre, movable pulley is hanging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749768.2U CN209047537U (en) | 2018-05-18 | 2018-05-18 | Aural-comprehension Training device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749768.2U CN209047537U (en) | 2018-05-18 | 2018-05-18 | Aural-comprehension Training device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209047537U true CN209047537U (en) | 2019-07-02 |
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ID=67045954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820749768.2U Expired - Fee Related CN209047537U (en) | 2018-05-18 | 2018-05-18 | Aural-comprehension Training device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209047537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112471230A (en) * | 2020-12-30 | 2021-03-12 | 龙俊 | Remove big bone device of chicken feet |
-
2018
- 2018-05-18 CN CN201820749768.2U patent/CN209047537U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112471230A (en) * | 2020-12-30 | 2021-03-12 | 龙俊 | Remove big bone device of chicken feet |
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