CN208422155U - Tutoring system - Google Patents
Tutoring system Download PDFInfo
- Publication number
- CN208422155U CN208422155U CN201721660463.6U CN201721660463U CN208422155U CN 208422155 U CN208422155 U CN 208422155U CN 201721660463 U CN201721660463 U CN 201721660463U CN 208422155 U CN208422155 U CN 208422155U
- Authority
- CN
- China
- Prior art keywords
- link block
- wall
- classroom
- spring
- mounting
- 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.)
- Expired - Fee Related
Links
Landscapes
- Electrically Operated Instructional Devices (AREA)
Abstract
The utility model provides the utility model and provides a kind of tutoring system first, it include: that several groups reply device group, it include that several reply device in each group of answer device group, each answer device includes replying control module and communication module, reply module can be communicated to connect with communication module, each group of answer device group be respectively provided with in a classroom；Several classroom servers, each classroom server are respectively arranged in a classroom；Total service station, all classroom servers are communicatively connected to a total service station.The tutoring system had both solved the problems, such as in teacher and student's interactive process in the prior art or will appear teacher not know the content for having a lot of students to grasp explanation also solve the problems, such as that teacher's Evaluation Method of Teaching Quality evaluation result in the prior art and actual deviation are larger.
Description
Technical field
The utility model relates to impart knowledge to students to use equipment and quality of instruction control method field, and in particular to a kind of tutoring system.
Background technique
Chinese patent discloses a kind of application No. is the intelligent tutoring system of 201710552927.X, and teaching resource module will
Several teaching resources are input to Teaching Support Platform module, and Teaching Support Platform module includes exam pool development module, exam pool
Each teaching resource of teaching resource module is divided into several independent knowledge points by development module, and each independent knowledge point is equal
Module, automatic scoring module is guided to form by real training task module, operation, Teaching Support Platform module is embedding by independent knowledge point
Enter software module, student manage by software module the real training of real one, obtains real training result；Several teaching resources are corresponding
Each different majors of different institutes；Real training task module can Real-Time Sharing and update to real training resource, carry out classroom interactions.
The utility model has independent exam pool development module, and operation guide and automatic scoring can be carried out to student's real training.Although the religion
System is able to solve that teaching resource dispersion, not shared, instructional mode is single, not lively, Classroom theory teaching to a certain extent
With the skimble-scamble problem of practice-training teaching, but the shortcomings that the tutoring system still has are as follows:
It cannot reflect the conscientiously degree that student listens to the teacher in classroom, while also will appear teacher not in teacher and student's interactive process
Know the content for there are a lot of students to grasp explanation, and does not also provide any method about teacher's teaching quality evaluation.
Utility model content
The utility model provides a kind of tutoring system, both solved in teacher and student's interactive process in the prior art or
It will appear the problem of teacher does not know the content for having a lot of students to grasp explanation, also solve teacher's religion in the prior art
Learn quality evaluating method evaluation result and the larger problem of actual deviation.
To achieve the above object, the utility model uses the following technical solution:
The utility model provides a kind of tutoring system, comprising: several groups reply device group, if including in each group of answer device group
Dry answer device, each answer device include replying control module and communication module, and replying module can communicate with communication module
Connection, each group of answer device group be respectively provided with in a classroom；
Several classroom servers, each classroom server are respectively arranged in a classroom, and each religion is indoor each to be answered
A classroom server in classroom where multiple device is communicatively connected to；Total service station, all classroom servers are communicatively connected to one
Total service station；
Each answer device further include shell, switching switch and connection socket, reply control module, switching switch and
Communication module is mounted in shell, and the connection socket for placing shell is equipped on classroom desk；Connecting socket includes
Pedestal and data line, the supporting surface of pedestal are used to support shell, and the first connector of data line replies control module for connecting,
Second connector of data line and place classroom server are connected, and the first connector is emerged pedestal supporting surface；Switching switch comprising cut
Bar, the first spring, the first link block, the second link block, the first conductive sheet, the second conductive sheet and third conductive sheet are changed, outside
The jack that the first connector insertion for data line is offered in shell, also offers connecting cavity, changer lever one end is protruded into inside the shell
To jack, the changer lever other end is stretched in connecting cavity, the moving direction of changer lever and data line under the guiding of shell
Direction is parallel in first connector insertion jack, and changer lever is across the first spring and changer lever having in connecting cavity and is located at company
It connects the first intracavitary link block to fix, the first spring one end is fixed with cavity wall is connect, and the first spring other end is connect with first
Block is fixed, and the second link block with the first link block face, the second link block and answer control module are fixed in connecting cavity
It connects, is provided with conduct piece in changer lever, the first link block and the second link block, with the first connector after the insertion of the first connector
It is electrically connected by the conduct piece in changer lever, the first link block and the second link block with control module is replied；Changer lever, first connect
It connects block and the second link block is all made of insulating materials and is made；It is fixed with the first conductive sheet on the side wall of first link block, is connecting
The second conductive sheet and third conductive sheet being spaced apart from each other are installed, the second conductive sheet connects 5v power supply, and third is conductive on cavity wall
Piece is connected to the input terminal for replying control module, keeps under the action of the first spring when the first connector is not inserted into jack
First conductive sheet connects the second conductive sheet with third conductive sheet.
Preferably, shell includes upper housing, lower case, several screw rods, support ring, mounting cylinder, rotating cylinder, clamping assembly
Turn component with limit；Shell is fastened in lower case, and upper housing and lower case are detachably connected by least two screw rods, lower case
Face close to upper housing is recessed to form the first mounting groove and the second mounting groove, replies control module for placing in the first mounting groove
And communication module；Support ring is installed on inner wall in the middle part of the second mounting groove, is placed with mounting cylinder in support ring, mounting cylinder and
Second mounting groove is divided into the connecting cavity far from upper housing by support ring, is provided at least at mounting cylinder and the second mounting groove inner wall
One clamping assembly；Rotating cylinder passes through upper housing with being able to rotate, and rotating cylinder stretches to mounting cylinder after upper housing is fastened in lower case
Interior, rotation drum outer wall is protruding with protrusion, and rotation rotating cylinder can make protrusion act on clamping assembly mounting cylinder is mounted on first
On mounting groove inner wall, protrusion can also be made to be detached from far from clamping assembly and the first mounting groove inner wall；It is installed on upper housing limited
Turn component, and limit turns component and is located at by rotating cylinder, to limit or rotating cylinder is allowed to rotate；Rotating cylinder inner hole is jack, changer lever
One end stretches in rotating cylinder, and changer lever passes through mounting cylinder and support ring, and the first spring is connected on mounting cylinder bottom surface.
Preferably, each clamping assembly includes clamping column, second spring, mounting rack and the first idler wheel, mounting cylinder
Center line and rotating cylinder center line are parallel with screw rod, and clamping column is vertical with screw rod, and clamping column passes through mounting cylinder, in the first peace
Card tieholen is offered on tankage inner wall, clamping column is placed through the second spring in mounting cylinder, second spring one end and clamping column
End in mounting cylinder is fixed, and the second spring other end is fixed with mounting cylinder inner wall, clamping column be located at mounting cylinder in
Mounting rack is fixed, and the first idler wheel is installed on mounting rack with being able to rotate, and the first idler wheel and rotation drum outer wall meeting protrusion are tangent.
Preferably, it includes: limit rotating disk that limit, which turns component, offers in the junction of rotating cylinder and upper housing and is looped around rotation
Limit outside rotating cylinder turns chamber, and limited rotating disk is fixed on rotation drum outer wall, and limit rotating disk is annular；And Ka She, in upper housing
On offer several threaded holes, each screw rod is inserted into a threaded hole and connect with place threaded hole inner thread, is located at and revolves
Threaded hole inner wall depression by rotating cylinder forms a driving chamber, and the one end Ka She can stretch to limit and turn intracavitary, and the card house other end stretches to
Driving chamber, Ka She are placed through the third spring in driving chamber, and third spring one end is fixed with driving cavity wall, and third spring is another
One end is fixed with Ka She, and the second idler wheel is rotatably mounted on Ka She；Wherein, the threaded hole inner screw being connected to driving chamber includes
The screw thread body of rod, the first swingle, the second swingle and extrusion head, the screw thread body of rod are connect with threaded hole inner thread, will be upper
Shell is connected with lower case, and screw thread body of rod top is fixed with first swingle one end, and the first swingle other end is connected to extruding
The small end of head, the big end of extrusion head are connect with second swingle one end, and the second swingle other end stretches out upper housing, extrusion head energy
It is tangent with the second idler wheel, the rotating disk rotation of Ka She limitation limit, the big end of extrusion head when the big end of extrusion head and the second idler wheel are tangent
Ka She is detached from limit rotating disk when not tangent with the second idler wheel.
Compared with the prior art, the utility model has the following beneficial effects:
1) it facilitates in teacher and student's interactive process, learns the response situation of student, as early as possible to facilitate teacher as early as possible
The project for needing to explain corresponding interaction again is known whether, so that teacher will appreciate that the level of understanding of student；
2) attracted the attention of student so that student is facilitated to both participate in the interaction of teacher, while it is also known that oneself
Other classmates for whether having kept up with class, are conducive to the raising of student performance；
3) in order to realize that can be realized answer device when shell is detached from socket connect with classroom server wireless communication, simultaneously
Device and classroom server wired connection are replied in order to realize to can be realized after placing shell.
Detailed description of the invention
Fig. 1 is to reply the cross-sectional view replied in device when device is not inserted into the first connector；
Fig. 2 is the cross-sectional view replied in device after replying device the first connector of insertion.
Specific embodiment
The present embodiment provides a kind of tutoring system first, comprising: several groups reply device group, include in each group of answer device group
Several reply device, and each answer device includes replying control module and communication module, and replying module can be logical with communication module
Letter connection, each group of answer device group be respectively provided with in a classroom；Several classroom servers, each classroom server are respectively set
In in a classroom, each indoor each answer device of religion is communicatively connected to a classroom server in place classroom；Total service station,
All classroom servers are communicatively connected to a total service station.
In order to realize that can be realized answer device when shell is detached from socket connect with classroom server wireless communication, is simultaneously
Realizing, which can be realized after placing shell, replies device and classroom server wired connection, reduces the negative of classroom server
Load, so that the reaction of classroom server is more accelerated, advantageously ensures that being normally carried out for classroom, as shown in Figure 1 and Figure 2, each
Replying device further includes shell, switching switch and connection socket, replies control module, switching switch and communication module and pacifies
Loaded on the connection socket in shell, being equipped on classroom desk for placing shell；Connecting socket includes pedestal and data
Line, the supporting surface of pedestal are used to support shell, and the first connector of data line replies control module for connecting, and the second of data line
Connector and place classroom server are connected, and the first connector is emerged pedestal supporting surface；Switching switch comprising changer lever 11, first
Spring 12, the first link block 13, the second link block 14, the first conductive sheet 15, the second conductive sheet 16 and third conductive sheet 17,
The jack that the first connector 3 insertion for data line is offered in shell, also offers connecting cavity, 11 one end of changer lever inside the shell
Stretch in jack, 11 other end of changer lever stretches in connecting cavity, under the guiding of shell the moving direction of changer lever 11 with
Direction is parallel in the first connector 3 insertion jack of data line, changer lever 11 pass through have the first spring 12 in connecting cavity and
Changer lever 11 and the first link block 13 being located in connecting cavity are fixed, and 12 one end of the first spring is fixed with cavity wall is connect, and first
12 other end of spring and the first link block 13 are fixed, and the second link block with 13 face of the first link block is fixed in connecting cavity
14, the second link block 14 is connected with control module is replied, and is respectively provided in changer lever 11, the first link block 13 and the second link block 14
Have conduct piece, with when the first connector 3 insertion after the first connector 3 pass through changer lever 11, the first link block 13 and the second link block 14
Interior conduct piece is electrically connected with control module is replied；Changer lever 11, the first link block 13 and the second link block 14 are all made of insulation
Material is made；It is fixed with the first conductive sheet 15 on the side wall of first link block 13, is equipped with and is spaced apart from each other on connection cavity wall
The second conductive sheet 16 and third conductive sheet 17, the second conductive sheet 16 connect 5v power supply, third conductive sheet 17 be connected to answer control
The input terminal of molding block keeps the first conductive sheet under the action of the first spring 12 when the first connector 3 is not inserted into jack
15 connect the second conductive sheet 16 with third conductive sheet 17.
The first spring 12 and the first conductive sheet 15 are disassembled together in order to realize to facilitate when the first spring 12 is damaged
When also facilitate the spring 12 that subtracts the first and the first conductive sheet 15 assembles again, as shown in Figure 1 and Figure 2, shell includes upper housing
21, lower case 22, several screw rods 23, support ring 24, mounting cylinder 25, rotating cylinder 26, clamping assembly and limit turn component；Shell fastens
In lower case 22, and upper housing 21 and lower case 22 are detachably connected by least two screw rods 23, and lower case 22 is close to upper casing
The face of body 21 is recessed to form the first mounting groove and the second mounting groove, for placing answer control module and leading in the first mounting groove
Believe module；Support ring 24 is installed on inner wall in the middle part of the second mounting groove, mounting cylinder 25, mounting cylinder 25 are placed in support ring 24
Second mounting groove is divided into the connecting cavity far from upper housing 21 with support ring 24, is set at mounting cylinder 25 and the second mounting groove inner wall
It is equipped with an at least clamping assembly；Rotating cylinder 26 passes through upper housing 21 with being able to rotate, and upper housing 21 is fastened on back spin in lower case 22
Rotating cylinder 26 stretches in mounting cylinder 25, and 26 outer wall of rotating cylinder is protruding with protrusion, and rotation rotating cylinder 26 can make protrusion act on card
Mounting cylinder 25 is mounted on the first mounting groove inner wall by tight component, also protrusion can be made far from clamping assembly and the first mounting groove
Wall is detached from；Installed on upper housing 21 it is limited turn component, and limit turns component and is located at by rotating cylinder 26, to limit or allow rotating cylinder
26 rotations；26 inner hole of rotating cylinder is jack, and 11 one end of changer lever stretches in rotating cylinder 26, and changer lever 11 passes through 25 He of mounting cylinder
Support ring 24, the first spring 12 are connected on 25 bottom surface of mounting cylinder.
In order to which design structure is simple and clamping assembly easy to use, as shown in Figure 1 and Figure 2, each clamping assembly is equal
Including clamping column 41, second spring 42, mounting rack 43 and the first idler wheel, 26 center line of 25 center line of mounting cylinder and rotating cylinder
Parallel with screw rod 23, clamping column 41 is vertical with screw rod 23, and clamping column 41 passes through mounting cylinder 25, opens on the first mounting groove inner wall
Equipped with card tieholen, clamping column 41 is placed through the second spring 42 in mounting cylinder 25,42 one end of second spring with 41, clamping column
Fixed in the end in mounting cylinder 25,42 other end of second spring is fixed with 25 inner wall of mounting cylinder, clamping column 41 be located at installation
Mounting rack 43 in cylinder 25 is fixed, and the first idler wheel is installed on mounting rack 43 with being able to rotate, the first idler wheel and 26 outer wall of rotating cylinder
Meeting protrusion is tangent.
In order to which design structure is simple and easy to use limit turns component, as shown in Figure 1 and Figure 2, it includes: limit that limit, which turns component,
Rotating disk 51 offers the limit being looped around outside rotating cylinder 26 in the junction of rotating cylinder 26 and upper housing 21 and turns chamber, in rotating cylinder
Limited rotating disk 51 is fixed on 26 outer walls, limit rotating disk 51 is annular；And card house 52, several spiral shells are offered on upper housing 21
Pit, each screw rod 23 are inserted into a threaded hole and connect with place threaded hole inner thread, the spiral shell positioned at 26 side of rotating cylinder
Pit inner wall depression forms a driving chamber, and 52 one end of card house can stretch to limit and turn intracavitary, and card 52 other ends of house stretch to driving chamber,
Card house 52 is placed through the third spring 53 in driving chamber, and 53 one end of third spring is fixed with driving cavity wall, third spring 53
The other end and card house 52 are fixed, are rotatably mounted the second idler wheel on card house 52；Wherein, spiral shell in the threaded hole being connected to driving chamber
Bar 23 includes the screw thread body of rod 61, the first swingle 62, the second swingle 63 and extrusion head 64, in the screw thread body of rod 61 and threaded hole
Wall is threadedly coupled, and upper housing 21 and lower case 22 are connected, and 61 top of the screw thread body of rod is fixed with 62 one end of the first swingle, the
One swingle, 62 other end is connected to the small end of extrusion head 64, and the big end of extrusion head 64 is connect with 63 one end of the second swingle, the
Two swingles, 63 other end stretches out upper housing 21, and extrusion head 64 can be tangent with the second idler wheel, the big end of extrusion head 64 and the second rolling
52 limitation limit rotating disk 51 of card house rotates when taking turns tangent, and card house 52 is detached from limit when the big end of extrusion head 64 is not tangent with the second idler wheel
Rotating disk 51.
The present embodiment also provides a kind of Evaluation Method of Teaching Quality based on the tutoring system, comprising the following steps:
S1, total service station by all classroom servers obtain each student every time with reacting in teacher's interactive process
Time t, it obtains and says each student after class every time to the evaluation score x of teacher's teaching efficiency and obtain the total marks of the examination of each student
Y, wherein in minutes, reaction time t is less than or equal to 5 minutes reaction time t unit, when each student interacted with teacher
It is 0 that reaction time t is corresponded to when the real reaction time is greater than 5 minutes in journey；
S2, total service station calculate average reaction time
S3, total service station calculate mean opinion score
S4, total service station calculate the examination average mark of all students
S5, total service station calculate quality evaluation coefficient P,In formula, xAlwaysIndividually to evaluate point
Several total scores, yAlwaysFor the total score of single exam score, a is average reaction timeThe weight accounted in evaluation, b are average ratings
ScoreThe weight accounted in evaluation, (c is definite value to c, and c is expert and the definite value for evaluating expert's co-determination, this setting method people
For what is set) as mean opinion scoreThe weight accounted in evaluation.Wherein, a+b+c=1, due toAndFor
The statistical data of full marks, therefore be full marks when P is equal to 1, P value is higher, it was demonstrated that teacher is more outstanding.
Since reaction time t has embodied classroom to the Attraction Degree of student i.e. the class efficacy place of teacher, certainly
Reaction time t is lower, and the class efficacy for proving teacher is better, simultaneously because reaction time t also embodies the conscientiously degree of student, such as
Fruit student response time t time-out, then prove that student mismatches, therefore the evaluation for mismatching student is worthless, therefore calculatesSo that reducing the weight that evaluation score accounts for, calculate simultaneouslySo that the classroom of teacher is imitated
The weight that fruit occupies is increasing, this to be more in line with actual conditions, so that the calculating change of evaluation coefficient P meets reality, more
Add hommization, so that evaluation coefficient P is more desirable, the optimization processing of a and b:
It is 0 number is n that S51, total service station, which calculate reaction time t,1；
S52, total service station count total statistics number N of reaction time t, and calculation formula is as follows: N=n2*n3, in formula, n2
For the sum of student, n3Being student always interacts number with teacher；
S53, total service station calculateIn formula, a0For constant, b0For constant.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (4)
1. a kind of tutoring system characterized by comprising
Several groups reply device group, include that several reply device in each group of answer device group, each answer device includes replying control
Module and communication module, reply module can be communicated to connect with communication module, each group of answer device group be respectively provided with in a classroom；
Several classroom servers, each classroom server are respectively arranged in a classroom, each indoor each answer device of religion
A classroom server in classroom where being communicatively connected to；
Total service station, all classroom servers are communicatively connected to a total service station；
Each answer device further includes shell, switching switch and connection socket, replies control module, switching switch and communication
Module is mounted in shell, and the connection socket for placing shell is equipped on classroom desk；
Connecting socket includes pedestal and data line, and the supporting surface of pedestal is used to support shell, and the first connector of data line is used for
It connects and replies control module, the second connector of data line and place classroom server are connected, and the first connector is emerged pedestal supporting surface；
Switching switch comprising changer lever, the first spring, the first link block, the second link block, the first conductive sheet, the second conduction
Piece and third conductive sheet offer the jack of the first connector insertion for data line inside the shell, also offer inside the shell
Connecting cavity, changer lever one end stretch in jack, and the changer lever other end stretches in connecting cavity, the changer lever under the guiding of shell
Moving direction and data line the first connector insertion jack in direction it is parallel, changer lever passes through first had in connecting cavity
Spring and changer lever are fixed with the first link block being located in connecting cavity, and the first spring one end is fixed with cavity wall is connect, and first
The spring other end is fixed with the first link block, is fixed with the second link block with the first link block face in connecting cavity, and second
It link block and replies control module and connects, be provided with conduct piece in changer lever, the first link block and the second link block, when the
The first connector by the conduct piece in changer lever, the first link block and the second link block and replies control module after the insertion of one connector
It electrically connects；Changer lever, the first link block and the second link block are all made of insulating materials and are made；It is fixed on the side wall of first link block
There is the first conductive sheet, the second conductive sheet and third conductive sheet being spaced apart from each other, the second conductive sheet are installed on connection cavity wall
Connect 5v power supply, third conductive sheet be connected to reply control module input terminal, when the first connector is not inserted into jack
The first conductive sheet is kept to connect the second conductive sheet with third conductive sheet under the action of first spring.
2. tutoring system according to claim 1, which is characterized in that shell include upper housing, lower case, several screw rods,
Support ring, mounting cylinder, rotating cylinder, clamping assembly and limit turn component；
Shell is fastened in lower case, and upper housing and lower case are detachably connected by least two screw rods, and lower case is close to upper
The face of shell is recessed to form the first mounting groove and the second mounting groove, for placing answer control module and leading in the first mounting groove
Believe module；Support ring is installed on inner wall in the middle part of the second mounting groove, mounting cylinder, mounting cylinder and support ring are placed in support ring
Second mounting groove is divided into the connecting cavity far from upper housing, is provided with an at least clamping at mounting cylinder and the second mounting groove inner wall
Component；
Rotating cylinder passes through upper housing with being able to rotate, and rotating cylinder stretches in mounting cylinder after upper housing is fastened in lower case, rotates
Drum outer wall is protruding with protrusion, and rotation rotating cylinder can make protrusion act on clamping assembly mounting cylinder is mounted in the first mounting groove
On wall, protrusion can also be made to be detached from far from clamping assembly and the first mounting groove inner wall；
Installed on upper housing it is limited turn component, and limit turns component and is located at by rotating cylinder, to limit or rotating cylinder is allowed to rotate；
Rotating cylinder inner hole is jack, and changer lever one end stretches in rotating cylinder, and changer lever passes through mounting cylinder and support ring, the first bullet
Spring is connected on mounting cylinder bottom surface.
3. tutoring system according to claim 2, which is characterized in that each clamping assembly includes clamping column, the second bullet
Spring, mounting rack and the first idler wheel, mounting cylinder center line and rotating cylinder center line are parallel with screw rod, and clamping column and screw rod hang down
Directly, clamping column passes through mounting cylinder, offers card tieholen on the first mounting groove inner wall, and clamping column is placed through the in mounting cylinder
Two springs, second spring one end are located at the end in mounting cylinder with clamping column and fix, the second spring other end and mounting cylinder inner wall
Fixed, clamping column is fixed with the mounting rack being located in mounting cylinder, and the first idler wheel is installed on mounting rack with being able to rotate, the first idler wheel
It is tangent with rotation drum outer wall meeting protrusion.
4. tutoring system according to claim 1 or 2, which is characterized in that limit turns component and includes:
Rotating disk is limited, the limit being looped around outside rotating cylinder is offered in the junction of rotating cylinder and upper housing and turns chamber, outside rotating cylinder
Limited rotating disk is fixed on wall, limit rotating disk is annular；And
Ka She, offers several threaded holes on upper housing, each screw rod be inserted into a threaded hole and in the threaded hole of place
Wall is threadedly coupled, and the threaded hole inner wall depression by rotating cylinder forms a driving chamber, and the one end Ka She can stretch to limit and turn intracavitary,
The card house other end stretches to driving chamber, and Ka She is placed through the third spring in driving chamber, in third spring one end and driving chamber
Wall is fixed, and the third spring other end is fixed with Ka She, and the second idler wheel is rotatably mounted on Ka She；
Wherein, the threaded hole inner screw being connected to driving chamber includes the screw thread body of rod, the first swingle, the second swingle and extruding
Head, the screw thread body of rod are connect with threaded hole inner thread, and upper housing is connected with lower case, screw thread body of rod top and the first rotation
Bar one end is fixed, and the first swingle other end is connected to the small end of extrusion head, and the big end of extrusion head and second swingle one end connect
It connects, the second swingle other end stretches out upper housing, and extrusion head can be tangent with the second idler wheel, the big end of extrusion head and the second idler wheel phase
Qie Shikashe limitation limit rotating disk rotation, Ka She is detached from limit rotating disk when the big end of extrusion head is not tangent with the second idler wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660463.6U CN208422155U (en) | 2017-12-01 | 2017-12-01 | Tutoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660463.6U CN208422155U (en) | 2017-12-01 | 2017-12-01 | Tutoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208422155U true CN208422155U (en) | 2019-01-22 |
Family
ID=65128308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721660463.6U Expired - Fee Related CN208422155U (en) | 2017-12-01 | 2017-12-01 | Tutoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208422155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107784883A (en) * | 2017-12-01 | 2018-03-09 | 重庆电子工程职业学院 | Tutoring system and the Evaluation Method of Teaching Quality based on the tutoring system |
-
2017
- 2017-12-01 CN CN201721660463.6U patent/CN208422155U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107784883A (en) * | 2017-12-01 | 2018-03-09 | 重庆电子工程职业学院 | Tutoring system and the Evaluation Method of Teaching Quality based on the tutoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110538469B (en) | Tangible programming instruction building block capable of realizing instruction switching | |
| CN109147442A (en) | Sync instruction system based on student classroom answer situation | |
| CN208422155U (en) | Tutoring system | |
| CN107784883A (en) | Tutoring system and the Evaluation Method of Teaching Quality based on the tutoring system | |
| CN209417983U (en) | A kind of think of political affairs classroom auxiliary device | |
| CN204347422U (en) | A kind of computer teaching Scroll projection screen | |
| CN106875311A (en) | A kind of ideological and political theory teaching system | |
| CN205428268U (en) | Teaching aid for chinese teaching | |
| CN109102744A (en) | A kind of computer Internet of Things teaching training apparatus | |
| CN109829682A (en) | A kind of network class's of looking into system and method online | |
| CN208063246U (en) | A kind of child-parent education instruction management platform Internet-based | |
| CN108986567A (en) | A kind of automation education equipment | |
| CN209312305U (en) | Connection simulator for training on electric power | |
| CN209000309U (en) | A kind of mathematical statistics teaching aid special | |
| CN206805890U (en) | A kind of Middle School Physics pinhole imaging system experiment teaching aid | |
| CN209343548U (en) | A kind of University counselors politics teaching device | |
| CN208018651U (en) | A kind of chemistry teaching experimental bench | |
| CN107808441B (en) | Interactive intelligent teaching system applied to ideological and political courses of colleges and universities | |
| CN207731493U (en) | A kind of private tutor's machine System Network Architecture based on cloud service | |
| CN110136512A (en) | A kind of English grade examzation examination exercise and the automatic clustering system of answer parsing | |
| CN111179647A (en) | English listening comprehension study auxiliary device | |
| CN202838766U (en) | Fluorescent lamp test demonstration device | |
| CN216119172U (en) | General knowledge education module capable of interactive teaching | |
| CN213751450U (en) | A device that is used for scene to admire class teaching | |
| CN204650800U (en) | A kind of Novel English oral English classroom-teaching servicing unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20191201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |