CN211906665U

CN211906665U - Picture linkage is used in english teaching

Info

Publication number: CN211906665U
Application number: CN202020872066.0U
Authority: CN
Inventors: 陈娟
Original assignee: Jiujiang University
Current assignee: Jiujiang University
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-11-10
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a picture hanging device for English teaching, which comprises a base, wherein a vertical supporting rod is fixed on the base, a fixed rod in the horizontal direction is fixed on the vertical supporting rod, a movable rod in the horizontal direction is arranged right above the fixed rod, the movable rod is connected with the vertical supporting rod in a sliding way, and the movable rod can slide up and down in the longitudinal direction of the vertical supporting rod; the fixed rod and the movable rod are provided with a plurality of fixing mechanisms used for fixing corners of pictures, and each fixing mechanism is connected to an automatic wire winding device through a pull rope. The utility model discloses a fixed establishment fixes the corner of picture, then extends the picture through electromagnetic technical means, just so can be so that the picture when extending, very level and smooth, and electromagnetic magnetic force makes the picture can not produce other visual interference at the in-process that extends.

Description

Picture linkage is used in english teaching

Technical Field

The utility model relates to a linkage field, in particular to picture linkage is used in english teaching.

Background

In the teaching of english, a large amount of learning needs to be performed on english words, and a teacher usually uses a picture teaching method when performing the teaching of words, namely, a picture is hung on a blackboard, and words expressed by the picture are written below the picture, so that a student can be helped to memorize english words at an english angle, for example, a picture of a police (shown in fig. 1) used by the teacher is hung on the blackboard, and then an english word "police" is displayed below the picture, so that the purpose of enabling the student to perform english learning through the picture can be achieved.

But at present when the picture hangs, only the teacher passes through magnet and adsorbs the picture on the blackboard of iron system, just so need the teacher in proper order with each corner of picture use magnet respectively to adsorb on the blackboard of iron system, when the size of picture is great, the working strength that the teacher adsorbed the picture on the blackboard is just big more, and simultaneously, because it is artifical manual to tile and adsorb the picture, the effect of picture after expanding is not good like this, can make the picture have the fold on the blackboard, will influence student and teacher very much like this and to the aesthetic feeling of watching of picture, long-time the case, can make the student lose the interest to english word study.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that exists among the above-mentioned prior art, provide a picture linkage for english teaching, fix the corner of picture through fixed establishment, then stretch the picture through electromagnetic technical means, just so can make the picture when stretching, very level and smooth, electromagnetic magnetic force makes the picture can not produce other visual interference at the in-process that extends.

Therefore, the utility model provides a picture linkage for english teaching, the on-line screen storage device comprises a base, be fixed with vertical branch on the base, be fixed with the dead lever of horizontal direction on the vertical branch, be provided with the movable rod of horizontal direction directly over the dead lever, the movable rod with vertical branch sliding connection, the movable rod can slide from top to bottom on the longitudinal direction of vertical branch.

The movable picture frame is characterized in that the opposite surfaces of the fixed rod and the movable rod are respectively provided with an electromagnet, the two electromagnets generate the same magnetic pole after being electrified, a plurality of fixing mechanisms used for fixing the corners of pictures are respectively arranged between the fixed rod and the movable rod, each fixing mechanism is connected to an automatic wire rewinding device through a pull rope, the automatic wire rewinding devices are respectively arranged on the fixed rod and the movable rod, at least one automatic wire rewinding device is arranged on the fixed rod, and at least one automatic wire rewinding device is arranged on the movable rod.

The electromagnet is electrically connected with the power supply device through the first switch.

Further, the top of vertical branch is fixed with the horizontal support body, and the horizontal support body is located the top of movable rod, be provided with the camera that is used for taking the picture below the horizontal support body, be provided with the 3D holographic projector on the horizontal support body.

The 3D holographic projector and the camera are in signal connection with a central processing unit respectively, the central processing unit is in signal connection with a second switch, and the central processing unit, the 3D holographic projector, the camera and the second switch are electrically connected with the power supply device respectively.

The second switch is arranged below the horizontal support body and is positioned right above the movable rod.

Furthermore, one end of the horizontal supporting body is fixed to the top of the vertical supporting rod, and the other end of the horizontal supporting body is provided with the camera.

Furthermore, a sliding groove in the longitudinal direction is formed in the vertical supporting rod and located above the fixed rod, a sliding block is connected to the sliding groove in a sliding mode, and the sliding block is fixedly connected with the rod body of the movable rod.

Further, a color light source is arranged below the horizontal support body and electrically connected with the power supply device through a third switch.

A writing instrument is arranged on the rod body of the fixed rod.

Furthermore, the fixing mechanism comprises a connecting block connected to one end of the pull rope, an L-shaped supporting rod and a locking plate are connected to the connecting block, the L-shaped supporting rod is fixed to the connecting block, and one end of the locking plate is hinged to the connecting block through a first hinged piece.

The opening has been seted up on the other end face of lockplate, and the top of the vertical section of L type branch is connected on the connecting block, L type branch horizontal segment can pass the opening, the free end of L type branch horizontal segment is equipped with locking mechanical system, and when L type branch horizontal segment passed during the opening, locking mechanical system locking L type branch and lockplate between the position.

Furthermore, the locking mechanism comprises two clamping plates, the two clamping plates are hinged to the free end faces of the horizontal section of the L-shaped supporting rod through second hinged parts respectively, and the opposite faces of the two clamping plates are provided with first magnets with the same magnetic poles respectively.

Furthermore, a second magnet is arranged on the clamping plate and is positioned on the surface opposite to the first magnet.

And a third magnet is arranged on the locking plate at a position corresponding to the second magnet, and the magnetic pole of the third magnet is opposite to that of the second magnet.

Furthermore, a plurality of grooves are formed in the bottom surface of the movable rod and the upper surface of the fixed rod respectively, the grooves correspond to the automatic wire winding devices in a one-to-one mode in number and positions, the automatic wire winding devices are located inside the grooves, and the pull ropes penetrate out of the grooves and are connected with the fixing mechanisms.

Furthermore, the automatic wire rewinding device comprises a rotating shaft positioned in the groove, two ends of the rotating shaft are respectively connected to the groove wall of the groove through a torsion spring, and the shaft body of the rotating shaft is fixed and wound with the pull rope.

The utility model provides a pair of picture linkage is used in english teaching has following beneficial effect:

1. the corners of the picture are fixed through the fixing mechanism, and then the picture is stretched through an electromagnetic technical means, so that the picture can be very flat when stretched, and the picture cannot generate other visual interference in the stretching process due to the electromagnetic magnetic force;

2. after the picture is stretched, the scanned picture is scanned to obtain a scanned image, the scanned image is processed through a central processing unit, then a corresponding 3D image is searched in the Internet, and the 3D holographic projector is used for projection, so that the scene watched by students is more vivid, and the learning interest of the students is favorably improved;

3. when testing students, the color light source is used for irradiating the extended picture, so that the picture on the picture can not be recognized, the students can firstly translate the words, and then the picture on the picture can be clearly seen by turning off the color light source, so that the students can test the learned words.

Drawings

FIG. 1 is an exemplary diagram of a picture presented in the current English teaching;

FIG. 2 is a schematic front view of the structure of the present invention;

FIG. 3 is a schematic side view of the structure of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

fig. 5 is a schematic structural view of the fixing mechanism of the present invention;

fig. 6 is a schematic view of the connection structure of the automatic wire rewinding device on the support rod of the present invention.

Description of reference numerals:

1. a horizontal support; 2. a chute; 3. a movable rod; 4. a fixing mechanism; 4-1, connecting blocks; 4-2, an L-shaped support rod vertical section; 4-3, splints; 4-4, through ports; 4-5, locking plate; 4-6, L-shaped horizontal section of the supporting rod; 4-7, a third magnet; 4-8, a second magnet; 5. an electromagnet; 6. a writing instrument; 7. a base; 8. fixing the rod; 9. a vertical strut; 10. a camera; 11. a 3D holographic projector; 12. a second switch; 13. a slider; 14. pulling a rope; 15. a rotating shaft; 16. a torsion spring; 17. and (4) a groove.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the invention is not limited by the embodiments.

In the present application, the type and structure of components that are not specified are all the prior art known to those skilled in the art, and those skilled in the art can set the components according to the needs of the actual situation, and the embodiments of the present application are not specifically limited.

Example 1

This embodiment provides a picture linkage for english teaching, realizes through essential necessary technical characteristic the utility model discloses to solve the problem that the technical background part proposed in this application file.

Specifically, as shown in fig. 2-3, the embodiment of the utility model provides a picture linkage for english teaching, including base 7, be fixed with vertical branch 9 on the base 7, be fixed with the dead lever 8 of horizontal direction on the vertical branch 9, be provided with the movable rod 3 of horizontal direction directly over the dead lever 8, the movable rod 3 with vertical branch 9 sliding connection, movable rod 3 can slide from top to bottom in the longitudinal direction of vertical branch 9.

In this embodiment, the fixing rod 8 is fixed at a fixed position on the vertical supporting rod 9, generally, the fixing rod 8 is located at the middle position of the vertical supporting rod 9, the movable rod 3 is located right above the fixing rod 8, the movable rod 3 can slide up and down in the longitudinal direction of the vertical supporting rod 9 due to the sliding connection with the vertical supporting rod 9, and the distance between the movable rod 3 and the fixing rod 8 can change along with the up-and-down movement of the movable rod 3.

The portable picture taking-up device is characterized in that the opposite surfaces of the fixed rod 8 and the movable rod 3 are respectively provided with an electromagnet 5, the two electromagnets 5 generate the same magnetic pole after being electrified, a plurality of fixing mechanisms used for fixing the corners of pictures are respectively arranged between the fixed rod 8 and the movable rod 3, each fixing mechanism is connected onto an automatic take-up device through a pull rope 14, the automatic take-up devices are respectively arranged on the fixed rod 8 and the movable rod 3, at least one automatic take-up device is arranged on the fixed rod 8, and at least one automatic take-up device is arranged on the movable rod 3. The electromagnet 5 is electrically connected with a power supply device through a first switch.

In this embodiment, before the teacher displays the picture, the teacher fixes the corners of the picture by using a fixing mechanism, for example, the picture in fig. 1, and fixes each of the four corners of the picture by using one fixing mechanism, wherein two corners at the upper end of fig. 1 are fixed by using a fixing mechanism connected to the movable rod 3, and two corners at the lower end of fig. 1 are fixed by using a fixing mechanism connected to the fixed rod 8, so that the picture can be displayed in the forward direction when the movable rod 3 and the fixed rod 8 extend the picture. After the teacher has fixed each corner of picture, the teacher presses first switch, and first switch can set up on vertical branch 9, and power supply unit supplies power to two electro-magnets 5 respectively this moment for electro-magnet 5 produces the same magnetic pole, and at this moment, will produce the repulsion between the electro-magnet 5 of two same magnetic poles, promotes the upward motion of movable rod 3, makes to produce the distance between fly leaf 3 and the dead lever 8, just can stretch the picture.

The utility model discloses in, the use can produce the electro-magnet 5 of the same magnetic pole, make and produce the repulsion between it, promote the upwards motion of movable rod 5, for traditional use extruded mechanical structure like this, can be so that propulsive space is very clean, there is not the space interference of any thing, simultaneously, use the repulsion that the electromagnetism produced, can not calculate propulsive minimum distance and maximum distance, therefore minimum distance between the electromagnetism is zero, the maximum distance is that the magnetic strength who adjusts electro-magnet 5 production as required sets up.

Example 2

The present embodiment is based on example 1 and optimizes the implementation scheme in example 1, so that the present embodiment is more stable and better in performance during the operation process, but the present embodiment is not limited to the implementation manner described in the present embodiment.

Specifically, as shown in fig. 2-3, in the present embodiment, a horizontal support 1 is fixed on the top of the vertical support rod 9, the horizontal support 1 is located above the movable rod 3, a camera 10 for taking pictures is disposed below the horizontal support 1, and a 3D holographic projector 11 is disposed on the horizontal support 1.

In the present embodiment, the movable rod 3 can move to the bottom of the horizontal support 1 to contact the bottom surface of the horizontal support 1, wherein the image capturing range of the camera 10 is the range of the extended picture, and the 3D holographic projector 11 is disposed above the horizontal support 1, so that the projected content is not blocked by other things.

The 3D holographic projector 11 with the camera 10 is respectively connected with a central processing unit through signals, the central processing unit is connected with a second switch 12 through signals, and the central processing unit, the 3D holographic projector 11, the camera 10 and the second switch 12 are respectively electrically connected with the power supply device. The second switch 12 is arranged below the horizontal support 1, and the second switch 12 is positioned right above the movable rod 3.

When the movable rod 3 moves to contact with the horizontal support 1, the movable rod 3 touches the second switch 12, and the second switch 12 is in signal connection with the central processing unit, so that after the central processing unit detects that the second switch 12 is touched, the central processing unit controls the camera 10 to start shooting, at this time, the camera 10 shoots a picture of a current picture, the central processing unit receives the picture of the current picture and extracts picture information in the picture through an image recognition technology, for example, the picture information in the picture 1 is extracted as 'police', then the central processing unit searches 3D projection information corresponding to the current picture information in a built-in information database, and sends the searched 3D projection information to the 3D holographic projector 11, so that the 3D holographic projector 11 projects the 3D projection information.

The information database stores the image information and the 3D projection information in a list form, and further supports a web crawler module to be connected with the internet so as to update the information stored in the information database in real time.

Meanwhile, in this embodiment, one end of the horizontal support 1 is fixed on the top of the vertical strut 9, and the other end of the horizontal support 1 is provided with the camera 10. Thus, the hung picture can be taken in a full scale by only slightly tilting the camera 10.

In this embodiment, the vertical support rod 9 is provided with a sliding groove 2 in the longitudinal direction, the sliding groove 2 is located above the fixed rod 8, the sliding groove 2 is slidably connected with a sliding block 13, and the sliding block 13 is fixedly connected with the rod body of the movable rod 3. Through the slip of spout 2 and slider 13 for the ascending motion of left right direction can not be carried out to movable rod 3, only can be in the up-and-down motion of vertical direction, and simultaneously, slider 13 and spout 2 can be so that movable rod 3 is located dead lever 8 directly over, can not have the deviation of position.

In this embodiment, a color light source is further disposed below the horizontal support 1, and the color light source is electrically connected to the power supply device through a third switch. A writing instrument 6 is arranged on the body of the fixed rod 8. In this embodiment, the writing of the marker 6 is visible after the writing is completed.

When the teacher is used for teaching or testing activities of students, the students can write the correct spelling of words on the writer 6 after looking at the pictures for a certain time or write the correct spelling of words on the writer. During the test, the teacher can write the spelling of the word on the writer 6, and then fix the corresponding picture by the fixing mechanism, and then, the use of turning on the colored light sources by means of a third switch, which may also be arranged on the vertical pole 9, when the picture is stretched by the first switch, the color light source is directed to the stretched picture to change the color of the picture, thus, the students cannot see the content of the pictures clearly, the camera 10 cannot shoot the images which can be identified by the central processing unit, at the moment, the teacher can make the students answer the meanings of the words on the writer 6, the teacher may cause the third switch to turn off the color light source when the teacher thinks that the correct answer is to be posted, at which time, the color of the picture is recovered to be normal, so that in the mode, students can watch the content corresponding to the words by watching the picture or projecting the content in a 3D mode.

Example 3

Specifically, as shown in fig. 2 to 6, in this embodiment, the fixing mechanism 4 includes a connecting block 4-1 connected to one end of the pulling rope 14, and an L-shaped supporting rod and a locking plate 4-5 are connected to the connecting block 4-1, where the L-shaped supporting rod is fixed to the connecting block 4-1, and one end of the locking plate 4-5 is hinged to the connecting block 4-1 through a first hinge. The other end plate surface of the locking plate 4-5 is provided with an opening 4-4, the top of the vertical section 4-2 of the L-shaped supporting rod is connected to the connecting block 4-1, the horizontal section 4-6 of the L-shaped supporting rod can penetrate through the opening 4-4, the free end of the horizontal section 4-6 of the L-shaped supporting rod is provided with a locking mechanism, and when the horizontal section 4-6 of the L-shaped supporting rod penetrates through the opening 4-4, the locking mechanism locks the position between the L-shaped supporting rod and the locking plate 4-5.

In this embodiment, a picture with a through hole on the corner is used, when the fixing mechanism 4 is used for fixing, the L-shaped support rod horizontal section 4-6 is passed through the through hole on the corner of the picture, then the L-shaped support rod horizontal section 4-6 is passed through the through hole 4-4 on the locking plate 4-5, so that the picture is located between the L-shaped support rod vertical section 4-2 and the locking plate 4-5, and the relative position between the L-shaped support rod vertical section 4-2 and the locking plate 4-5 is fixed by using the locking mechanism.

Meanwhile, in the embodiment, the locking mechanism comprises two clamping plates 4-3, the two clamping plates 4-3 are respectively hinged on the free end surfaces of the horizontal sections 4-6 of the L-shaped supporting rods through second hinge parts, and the opposite surfaces of the two clamping plates 4-3 are respectively provided with first magnets with the same magnetic poles. Therefore, when the locking mechanism is used for locking, as the opposite surfaces of the two clamping plates 4-3 are respectively provided with the first magnets with the same magnetic poles, the opposite surfaces of the two clamping plates 4-3 can generate repulsive force, so that the two clamping plates 4-3 can limit the position of the locking plate 4-5, and the locking plate 4-5 cannot be far away from the L-shaped strut vertical section 4-2.

Meanwhile, in the embodiment, a second magnet 4-8 is further arranged on the clamping plate 4-3, and the second magnet 4-8 is positioned on the surface opposite to the first magnet. A third magnet 4-7 is arranged on the locking plate 4-5 at a position corresponding to the second magnet 4-8, and the magnetic pole of the third magnet 4-7 is opposite to that of the second magnet 4-8.

The use of the second magnet 4-8 and the third magnet 4-7 to attach the clamping plate 4-3 to the locking plate 4-5 allows the relative position between the locking plate 4-5 and the L-shaped vertical leg section 4-2 to be fixed, and thus allows the relative position between the locking plate 4-5 and the L-shaped vertical leg section 4-2 to be fixed even better. Since the third magnet 4-7 has the opposite magnetic pole to the second magnet 4-8, the third magnet 4-7 and the second magnet 4-8 generate attraction force, and the third magnet 4-7 and the second magnet 4-8 attract each other, so that the clamping plate 4-3 can be attached to the locking plate 4-5.

In this embodiment, a plurality of grooves 17 are respectively formed in the bottom surface of the movable rod 3 and the upper surface of the fixed rod 8, the grooves 17 correspond to the automatic wire rewinding devices in a one-to-one correspondence manner, the automatic wire rewinding devices are located inside the grooves 17, and the pull rope 14 penetrates out of the grooves 17 and is connected with the fixing mechanism. Therefore, the automatic wire rewinding device can be hidden in the groove 17, so that the automatic wire rewinding device can occupy the space between the movable rod 3 and the fixed rod 8 when working, and meanwhile, the picture can be more attractive visually after being stretched.

Meanwhile, in this embodiment, the automatic wire rewinding device includes a rotating shaft 15 located inside the groove 17, two ends of the rotating shaft 15 are respectively connected to the groove wall of the groove 17 through a torsion spring 16, and the shaft body of the rotating shaft 15 is fixed and wound with the pulling rope 14.

In this embodiment, the rotation shaft 15 tends to rotate under the action of the torsion spring 16, so that when the tension is applied, the picture is pulled, and the stretching is more uniform. In this embodiment, the pulling rope 14 is wound around the shaft body of the rotating shaft 15.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims

1. A picture hanging device for English teaching comprises a base (7) and is characterized in that a vertical supporting rod (9) is fixed on the base (7), a fixing rod (8) in the horizontal direction is fixed on the vertical supporting rod (9), a movable rod (3) in the horizontal direction is arranged right above the fixing rod (8), the movable rod (3) is connected with the vertical supporting rod (9) in a sliding mode, and the movable rod (3) can slide up and down in the longitudinal direction of the vertical supporting rod (9);

the device comprises a fixed rod (8), a movable rod (3), a plurality of fixing mechanisms, a plurality of automatic wire rewinding devices and a plurality of wire rewinding devices, wherein the opposite surfaces of the fixed rod (8) and the movable rod (3) are respectively provided with an electromagnet (5), the two electromagnets (5) generate the same magnetic pole after being electrified, a plurality of fixing mechanisms for fixing corners of pictures are respectively arranged between the fixed rod (8) and the movable rod (3), each fixing mechanism is connected onto one automatic wire rewinding device through a pull rope (14), the automatic wire rewinding devices are respectively arranged on the fixed rod (8) and the movable rod (3), at least one automatic wire rewinding device is arranged on the fixed rod (8), and at least one automatic wire rewinding device is arranged on the;

the electromagnet (5) is electrically connected with the power supply device through a first switch.

2. The picture hanging device for English teaching of claim 1, wherein a horizontal support body (1) is fixed on the top of the vertical support rod (9), the horizontal support body (1) is positioned above the movable rod (3), a camera (10) for taking pictures is arranged below the horizontal support body (1), and a 3D holographic projector (11) is arranged on the horizontal support body (1);

the 3D holographic projector (11) and the camera (10) are respectively in signal connection with a central processing unit, the central processing unit is in signal connection with a second switch (12), and the central processing unit, the 3D holographic projector (11), the camera (10) and the second switch (12) are respectively electrically connected with the power supply device;

the second switch (12) is arranged below the horizontal support body (1), and the second switch (12) is positioned right above the movable rod (3).

3. The picture hanging device for English teaching of claim 2, wherein one end of the horizontal support body (1) is fixed on the top of the vertical support rod (9), and the other end of the horizontal support body (1) is provided with the camera (10).

4. The picture hanging device for English teaching as claimed in claim 1, wherein the vertical support rod (9) is provided with a sliding groove (2) in the longitudinal direction, the sliding groove (2) is located above the fixed rod (8), the sliding groove (2) is slidably connected with a sliding block (13), and the sliding block (13) is fixedly connected with the rod body of the movable rod (3).

5. The picture hanging device for English teaching as claimed in claim 2, wherein a colored light source is further disposed under the horizontal support body (1), and the colored light source is electrically connected to the power supply device through a third switch;

a writing instrument (6) is arranged on the rod body of the fixed rod (8).

6. The picture hanging device for english teaching according to claim 1, wherein the fixing mechanism (4) comprises a connecting block (4-1) connected to one end of the pull rope (14), an L-shaped strut and a locking plate (4-5) are connected to the connecting block (4-1), wherein the L-shaped strut is fixed to the connecting block (4-1), and one end of the locking plate (4-5) is hinged to the connecting block (4-1) through a first hinge;

opening (4-4) have been seted up on the other end face of lockplate (4-5), and the top of the vertical section of L type branch (4-2) is connected on connecting block (4-1), and L type branch horizontal segment (4-6) can pass opening (4-4), and the free end of L type branch horizontal segment (4-6) is equipped with locking mechanical system, and when L type branch horizontal segment (4-6) passed opening (4-4) time, locking mechanical system locking L type branch and lockplate (4-5) between the position.

7. The picture hanging device for English teaching according to claim 6, wherein the locking mechanism comprises two clamping plates (4-3), the two clamping plates (4-3) are respectively hinged on the free end surfaces of the horizontal sections (4-6) of the L-shaped supporting rods through second hinges, and first magnets with the same magnetic poles are respectively arranged on the opposite surfaces of the two clamping plates (4-3).

8. The picture hanging device for english teaching according to claim 7, wherein the clamping plate (4-3) is further provided with a second magnet (4-8), the second magnet (4-8) being located on the face opposite to the first magnet;

and a third magnet (4-7) is arranged at the position, corresponding to the second magnet (4-8), on the locking plate (4-5), and the magnetic poles of the third magnet (4-7) and the second magnet (4-8) are opposite.

9. The picture hanging device for English teaching as claimed in claim 1, wherein the bottom surface of the movable rod (3) and the upper surface of the fixed rod (8) are respectively provided with a plurality of grooves (17), the number of the grooves (17) is equal to that of the automatic wire winding devices, the positions of the grooves (17) correspond to those of the automatic wire winding devices one by one, the automatic wire winding devices are located in the grooves (17), and the pull rope (14) penetrates through the grooves (17) to be connected with the fixed mechanism.

10. The picture hanging device for English teaching as claimed in claim 9, wherein said automatic wire winding device comprises a rotating shaft (15) located inside said groove (17), two ends of said rotating shaft (15) are respectively connected to the walls of said groove (17) through a torsion spring (16), and said pulling rope (14) is fixed and wound on the shaft body of said rotating shaft (15).