CN210348911U - Customs declaration teaching contrast learning device - Google Patents

Abstract

The utility model relates to a teaching equipment technical field just discloses a report customs teaching and contrast learning device, the on-line screen storage device comprises a base, the bottom swing joint of base has the gyro wheel, the top fixedly connected with base of base, the spout has been seted up at the top of base, the spacing pipe of one side fixedly connected with of base, the inner wall swing joint of spacing pipe has the extension pipe. This declaration teaching contrast learning device, through the fixed plate, the dead lever, the upper bracket, the pipe, adjust the pole, fixed pipe, mutually supporting of lower carriage and control tube is used, can fold the device when not using this learning device and place the corner department in the classroom, save the classroom space, reach the purpose in utilization classroom space of being convenient for, it is complicated to avoid the too big structure of general learning device volume, occupation space is big, not only be difficult for accomodating, and easily be knocked down by the student of walking about, lead to learning device to break and the problem that can't use, thereby learning device's convenience has been improved.

Description

Customs declaration teaching contrast learning device

Technical Field

The utility model relates to a teaching equipment technical field specifically is a customs declaration teaching contrast learning device.

Background

The customs declaration practical course is a core course of international trade profession, mainly explains customs laws and regulations, import and export commodity classification, tax calculation, and customs declaration key points and customs clearance procedures of various import and export goods, masters the filling of customs declaration forms of the import and export goods on the basis of applying the knowledge, and processes comprehensive practical problems, thereby being a course with strong practicability and operability. Present teaching device function singleness, when the teacher explains national trade customs declaration teaching class, need to explain trade import and export goods customs procedure and the legal regulations content of corresponding more, it is more arduous to explain, the student is also unintelligible, teaching effect is not good, and general learning device uses electric power lift display panel, use cost is higher, the restrictive nature is strong, teacher's classroom explanation of being not convenient for, general learning device is bulky in addition, the structure is complicated, occupation space is big, the flexibility is also relatively poor, the teacher uses very inconveniently, can directly lead to teaching efficiency and teaching effect all worsen.

Technical problem to be solved

The not enough to prior art, the utility model provides a customs declaration teaching contrast learning device possesses advantages such as convenient to use, has solved the problem of general customs declaration teaching contrast learning device awkward.

(II) technical scheme

For the purpose that realizes above-mentioned customs declaration teaching contrast learning device and be convenient for use, the utility model provides a following technical scheme: a customs declaration teaching contrast learning device comprises a base, wherein the bottom of the base is movably connected with idler wheels, the top of the base is fixedly connected with a base, the top of the base is provided with a sliding groove, one side of the base is fixedly connected with a limiting pipe, the inner wall of the limiting pipe is movably connected with an extending pipe, the inner wall of the extending pipe is movably connected with a folding rod, one end of the folding rod is movably connected with an adjusting rod, the top of the adjusting rod is fixedly connected with a limiting plate, the outer wall of the adjusting rod is fixedly connected with an external threaded pipe, the outer wall of the external threaded pipe is in threaded connection with an internal threaded pipe, the top of the internal threaded pipe is movably connected with a round pipe, the outer wall of the round pipe is fixedly connected with an upper support, one end of the upper support is fixedly connected with an adjusting pipe, the bottom fixedly connected with lower carriage of frame, the one end fixedly connected with fixed tube of lower carriage, the inner wall swing joint of regulating tube has the dead lever, the top fixedly connected with fixed plate of dead lever, the bottom fixedly connected with slider of dead lever.

Preferably, one end of the adjusting rod penetrates through the inside of the round pipe and extends to the inside of the fixed pipe, and the outer wall of the adjusting rod is fixedly connected with the anti-skidding ring.

Preferably, the number of the limiting pipes is two, and the two limiting pipes are symmetrically arranged by taking the vertical center line of the base as a symmetry axis.

Preferably, the number of the fixing rods is two, and the two fixing rods are symmetrically arranged by taking the vertical center line of the sliding block as a symmetry axis.

Preferably, one end of the folding rod penetrates through the outer wall of the extension pipe and extends to the inside of the extension pipe, and the outer wall of the folding rod is fixedly connected with the anti-falling ring.

Preferably, both ends of the lower bracket are fixedly connected with fixing pipes, and the lower bracket is a stainless steel lower bracket.

Preferably, the outer wall of the extension pipe is fixedly connected with a pull handle, and the outer wall of the pull handle is provided with anti-skid grains.

(III) advantageous effects

Compared with the prior art, the utility model provides a customs declaration teaching contrast learning device possesses following beneficial effect:

1. this declaration teaching contrast learning device, through the fixed plate, the dead lever, the upper bracket, the pipe, adjust the pole, fixed pipe, mutually supporting of lower carriage and control tube is used, can fold the device when not using this learning device and place the corner department in the classroom, save the classroom space, reach the purpose in utilization classroom space of being convenient for, it is complicated to avoid the too big structure of general learning device volume, occupation space is big, not only be difficult for accomodating, and easily be knocked down by the student of walking about, lead to learning device to break and the problem that can't use, thereby learning device's convenience has been improved.

2. This customs declaration teaching contrast learning device, use through mutually supporting of internal thread pipe and external thread pipe, can need not use electric power can adjust the height at whole learning device demonstration position, reach the purpose of saving use cost, avoid general learning device to need use electric power height-adjusting, use cost is higher, and the restriction is strong, outage or socket all can influence learning device's result of use far away, lead to the problem of teaching effect variation, thereby improved the teaching effect again when having practiced thrift use cost.

3. This declaration teaching contrast learning device, through the slider, the folding rod, spacing pipe and extension tube mutually support and use, can adjust the angle of putting of arbitrary contrast board in the contrast board wantonly according to the light irradiation angle, reach the purpose of the best display effect of show, avoid general learning device can only adjust the angle of putting of overall device, need adjust many times just can make two boards all not reflect light and present the best display effect, directly lead to the problem that classroom time is wasted, thereby teaching efficiency has been promoted.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is an enlarged schematic view of the present invention at A in FIG. 1;

fig. 3 is a front view of the present invention.

In the figure: 1. a fixing plate; 2. fixing the rod; 3. an upper bracket; 4. a blackboard; 5. a limiting plate; 6. a circular tube; 7. an internally threaded tube; 8. an externally threaded tube; 9. adjusting a rod; 10. a fixed tube; 11. a slider; 12. a roller; 13. a base; 14. a base; 15. a chute; 16. a lower bracket; 17. an outer frame; 18. an adjusting tube; 19. a folding bar; 20. a limiting pipe; 21. an extension pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a customs declaration teaching contrast learning device comprises a base 13, rollers 12 are movably connected to the bottom of the base 13, a base 14 is fixedly connected to the top of the base 13, a sliding groove 15 is formed in the top of the base 14, two limiting tubes 20 are fixedly connected to one side of the base 14, the two limiting tubes 20 are symmetrically arranged with a vertical center line of the base 14 as a symmetry axis, an extending tube 21 is movably connected to the inner wall of the limiting tube 20, a pull handle is fixedly connected to the outer wall of the extending tube 21, anti-slip patterns are formed on the outer wall of the pull handle, a folding rod 19 is movably connected to the inner wall of the extending tube 21, one end of the folding rod 19 penetrates through the outer wall of the extending tube 21 and extends into the extending tube 21, an anti-slip ring is fixedly connected to the outer wall of the folding rod 19, an adjusting rod 9 is movably connected to one end of the folding rod 19, one end of the adjusting rod 9 penetrates through the inner, the anti-slip ring is fixedly connected to the outer wall of the adjusting rod 9, the limiting plate 5 is fixedly connected to the top of the adjusting rod 9, the outer wall of the adjusting rod 9 is fixedly connected with the external threaded pipe 8, the outer wall of the external threaded pipe 8 is in threaded connection with the internal threaded pipe 7, through the mutual matching use of the internal threaded pipe 7 and the external threaded pipe 8, the height of the display part of the whole learning device can be adjusted without using electric power, the purpose of saving the use cost is achieved, the problem that the use effect of the general learning device is affected by the power failure or the far distance of a socket and the teaching effect is poor is solved, the use cost is saved, and the teaching effect is improved, the circular pipe 6 is movably connected to the top of the internal threaded pipe 7, the upper support 3 is fixedly connected to the outer wall of the circular pipe 6, and the adjusting pipe 18 is fixedly connected to one end of the upper, the bottom of the upper support 3 is fixedly connected with an outer frame 17, the inner wall of the outer frame 17 is fixedly connected with a blackboard 4, the bottom of the outer frame 17 is fixedly connected with a lower support 16, two ends of the lower support 16 are fixedly connected with fixed pipes 10, the lower support 16 is a stainless steel lower support, stainless steel is short for stainless acid-resistant steel, and weak corrosion media such as air, steam and water resistance or stainless steel is called as stainless steel, one end of the lower support 16 is fixedly connected with a fixed pipe 10, the inner wall of the adjusting pipe 18 is movably connected with fixed rods 2, the number of the fixed rods 2 is two, the two fixed rods 2 are symmetrically arranged by taking the vertical central line of the sliding block 11 as a symmetrical axis, the top of each fixed rod 2 is fixedly connected with a fixed plate 1, and the device can be folded and placed at the corner of a classroom when the learning device is not used through the mutual matching of the fixed plate 1, the fixed rods 2, the upper support 3, the circular pipe 6, the adjusting rod 9, the, saving classroom space, achieving the purpose of facilitating the utilization of classroom space, avoiding the problems that the general learning device has overlarge volume, complicated structure, large occupied space, difficult storage and easy knock down by a walking student, leading to the crash of the learning device and the incapability of use, thereby improving the convenience of the learning device, the bottom of the fixed rod 2 is fixedly connected with a slide block 11, through slider 11, folding rod 19, spacing pipe 20 and extension pipe 21 mutually support and use, can adjust the angle of putting of arbitrary contrast board in the contrast board wantonly according to the light irradiation angle, reach the purpose of the best display effect of show, avoid general learning device can only adjust the angle of putting of integrated device, need adjust many times just can make two boards all not reflect light and present the best display effect, directly lead to the problem that classroom time is wasted, thereby teaching efficiency has been promoted.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

When the multifunctional folding umbrella is used, the extension pipe 21 is pulled, the extension pipe 21 is separated from the inside of the limiting pipe 20, the adjusting rod 9 is lifted, the adjusting rod 9 drives the folding rod 19 and the extension pipe 21 to move upwards, the two adjusting rods 9 are pulled to be attached to the middle, folding is completed, the internal thread pipe 7 is screwed, the internal thread pipe 7 moves up and down on the outer wall of the external thread pipe 8, the circular pipe 6 at the top of the internal thread pipe 7 moves up and down along with the internal thread pipe 7, the circular pipe 6 drives the upper support 3, the outer frame 17 and the blackboard 4 to move, height adjustment is completed, the extension pipe 21 is pulled, the extension pipe 21 is placed into the suitable limiting pipe.

In conclusion, this customs declaration teaching contrast learning device can fold the device and place in the corner department in the classroom when not using this learning device, saves classroom space, reaches the purpose of being convenient for utilize classroom space to the convenience of learning device has been improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a customs declaration teaching contrast learning device, includes base (13), its characterized in that: the bottom swing joint of base (13) has gyro wheel (12), the top fixedly connected with base (14) of base (13), spout (15) have been seted up at the top of base (14), one side fixedly connected with spacing pipe (20) of base (14), the inner wall swing joint of spacing pipe (20) has extension pipe (21), the inner wall swing joint of extension pipe (21) has folding rod (19), the one end swing joint of folding rod (19) has regulation pole (9), the top fixedly connected with limiting plate (5) of adjusting pole (9), the outer wall fixedly connected with external screw thread pipe (8) of adjusting pole (9), the outer wall threaded connection of external screw thread pipe (8) has internal thread pipe (7), the top swing joint of internal thread pipe (7) has pipe (6), the outer wall fixedly connected with upper bracket (3) of pipe (6), the utility model discloses a blackboard eraser, including upper bracket (3), the one end fixedly connected with control tube (18) of upper bracket (3), the bottom fixedly connected with frame (17) of upper bracket (3), the inner wall fixedly connected with blackboard (4) of frame (17), the bottom fixedly connected with lower carriage (16) of frame (17), the fixed pipe (10) of one end fixedly connected with of lower carriage (16), the inner wall swing joint of control tube (18) has dead lever (2), the top fixedly connected with fixed plate (1) of dead lever (2), the bottom fixedly connected with slider (11) of dead lever (2).

2. The customs declaration teaching contrast learning device as claimed in claim 1, wherein: one end of the adjusting rod (9) penetrates through the inside of the round pipe (6) and extends to the inside of the fixing pipe (10), and an anti-slip ring is fixedly connected to the outer wall of the adjusting rod (9).

3. The customs declaration teaching contrast learning device as claimed in claim 1, wherein: the number of the limiting pipes (20) is two, and the two limiting pipes (20) are symmetrically arranged by taking the vertical central line of the base (14) as a symmetry axis.

4. The customs declaration teaching contrast learning device as claimed in claim 1, wherein: the number of the fixed rods (2) is two, and the two fixed rods (2) are symmetrically arranged by taking the vertical center line of the sliding block (11) as a symmetry axis.

5. The customs declaration teaching contrast learning device as claimed in claim 1, wherein: one end of the folding rod (19) penetrates through the outer wall of the extension pipe (21) and extends to the interior of the extension pipe (21), and the outer wall of the folding rod (19) is fixedly connected with an anti-falling ring.

6. The customs declaration teaching contrast learning device as claimed in claim 1, wherein: both ends of the lower support (16) are fixedly connected with the fixed pipes (10), and the lower support (16) is a stainless steel lower support.

7. The customs declaration teaching contrast learning device as claimed in claim 1, wherein: the outer wall of the extension pipe (21) is fixedly connected with a pull handle, and the outer wall of the pull handle is provided with anti-skid grains.

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