CN216450244U - A teaching device for state trade customs clearance contrast teaching - Google Patents
A teaching device for state trade customs clearance contrast teaching Download PDFInfo
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- CN216450244U CN216450244U CN202122521708.XU CN202122521708U CN216450244U CN 216450244 U CN216450244 U CN 216450244U CN 202122521708 U CN202122521708 U CN 202122521708U CN 216450244 U CN216450244 U CN 216450244U
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Abstract
The utility model discloses a teaching device for state trade customs clearance contrast teaching, which comprises a base, universal brake wheels and a handle, wherein the universal brake wheels are installed at the edge of the lower surface of the base, a support rod is welded in the middle of the upper surface of the base, a lifting sleeve is sleeved on the outer wall of the upper end of the support rod, a positioning square rod is fixedly connected to the upper end surface of the support rod, a main rod is sleeved on the outer wall of the positioning square rod, a support arm is fixedly connected to the outer wall of the upper end of the main rod, a limit sleeve is movably installed at the end part of the support arm, a shaft rod is installed in the limit sleeve through an inner bearing, the handle is arranged at the tail end of the shaft rod, and a locking mechanism is installed on the upper end surface of the main rod. This a teaching device for national trade customs contrast teaching is convenient folding for the device is convenient for transport and deposits, has strengthened the practicality of device, and the device of imparting knowledge to students is convenient for carry out altitude mixture control simultaneously, makes things convenient for the student in a distance to watch.
Description
Technical Field
The utility model relates to the technical field of state trade customs clearance contrast teaching, in particular to a teaching device for state trade customs clearance contrast teaching.
Background
Customs declaration is a necessary component in customs entry and exit procedures, the main procedures are declaration, inspection, tax collection, release and the like, and national trade customs declaration refers to customs declaration in the related field of international trade.
However, the existing teaching device for the national trade customs contrast teaching has the following problems:
for convenient device is deposited and is transported, need the device to be convenient for fold, and the current teaching device that is used for state trade customs contrast teaching is difficult for folding, leads to the device transportation and deposits the inconvenience, has reduced the practicality of device, sees the device for the student of convenient far department simultaneously, needs the device height-adjusting of being convenient for, and the current teaching device that is used for state trade customs contrast teaching is difficult for carrying out altitude mixture control for the student of far department watches inconveniently.
To the above problems, innovative design is urgently needed on the basis of the original teaching device for state trade customs contrast teaching.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a teaching device for state trade customs clearance contrast teaching, and aims to solve the problems that the existing teaching device for state trade customs clearance contrast teaching is not easy to fold, so that the device is inconvenient to transport and store, the practicability of the device is reduced, and meanwhile, the teaching device for state trade customs clearance contrast teaching is not easy to adjust in height, so that students at a distance cannot conveniently watch.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a teaching device for national trade customs clearance contrast teaching, includes base, universal brake wheel and handle, universal brake wheel is installed to the lower surface edge of base, and the department's welding has the bracing piece in the middle of the upper surface of base to the upper end outer wall cover of bracing piece is equipped with lifting sleeve, and the up end fixedly connected with location square pole of bracing piece, the outer wall cover of location square pole is equipped with the mobile jib, and the upper end outer wall fixedly connected with support arm of mobile jib to the tip movable mounting of support arm has spacing sleeve pipe, and spacing sheathed tube outer wall has seted up first spacing hole, and the spacing sleeve pipe outer wall of first spacing hole avris has seted up the spacing hole of second simultaneously, the axostylus axostyle is installed to spacing sheathed tube inner bearing, and the end of axostylus axostyle is provided with the handle, locking mechanical system is installed to the up end of mobile jib.
Preferably, the bracing piece is connected with the lifting sleeve through the bearing, and the outer wall of bracing piece is connected through the upper surface of locating lever and base.
Preferably, the positioning square rod and the main rod form a sliding structure, and the main rod is in threaded connection with the lifting sleeve.
Preferably, the support arms are symmetrically distributed on the main rod, the support arms and the limiting sleeve are rotatably arranged, and the limiting sleeve is rotatably connected with the shaft rod.
Preferably, the locking mechanism comprises a locking plate and a positioning bolt, the locking plate is fixedly arranged on the upper end surface of the main rod, and the positioning bolt is connected to the end part of the locking plate in a threaded manner.
Preferably, the positioning bolts are symmetrically arranged on the locking plate, and the positioning bolts, the first limiting hole and the second limiting hole are both in threaded arrangement.
Compared with the prior art, the utility model has the beneficial effects that: the teaching device for state-trade customs clearance contrast teaching is convenient to fold, so that the device is convenient to transport and store, the practicability of the device is enhanced, and meanwhile, the teaching device is convenient to adjust the height and is convenient for remote students to watch;
1. the positioning bolt is separated from the second limiting hole through rotation of the positioning bolt, the shaft lever and the main rod are in a parallel state through rotation of the limiting sleeve around the supporting arm, and then the positioning bolt is rotated to be inserted into the first limiting hole to position the limiting sleeve, so that folding of the device is completed, and the device is convenient to transport and store;
2. through the sheathed tube rotation of lift for the mobile jib removes along location square pole, thereby drives the axostylus axostyle through the mobile jib and carries out the altitude mixture control, makes the state trade customs flow chart of axostylus axostyle outer wall installation carry out the altitude mixture control, carries out the student that makes things convenient for the distance and watches.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the connection structure of the positioning square bar and the main bar of the present invention;
fig. 4 is a schematic view of the connection structure of the support bar and the positioning square bar of the present invention.
In the figure: 1. a base; 2. a universal brake wheel; 3. a support bar; 4. positioning a rod; 5. a lifting sleeve; 6. positioning a square rod; 7. a main rod; 8. a support arm; 9. a limiting sleeve; 10. a first limit hole; 11. a second limiting hole; 12. a shaft lever; 13. a handle; 14. a locking mechanism; 1401. a locking plate; 1402. and (4) positioning the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a teaching device for national trade customs clearance contrast teaching comprises a base 1, universal brake wheels 2, a support rod 3, a positioning rod 4, a lifting sleeve 5, a positioning square rod 6, a main rod 7, a support arm 8, a limiting sleeve 9, a first limiting hole 10, a second limiting hole 11, a shaft rod 12, a handle 13, a locking mechanism 14, a locking plate 1401 and a positioning bolt 1402, wherein the universal brake wheels 2 are installed at the edge of the lower surface of the base 1, the support rod 3 is welded in the middle of the upper surface of the base 1, the lifting sleeve 5 is sleeved on the outer wall of the upper end of the support rod 3, the positioning square rod 6 is fixedly connected to the upper end surface of the support rod 3, the main rod 7 is sleeved on the outer wall of the positioning square rod 6, the support arm 8 is fixedly connected to the outer wall of the upper end of the main rod 7, the limiting sleeve 9 is movably installed at the end part of the support arm 8, and the first limiting hole 10 is formed in the outer wall of the limiting sleeve 9, meanwhile, the outer wall of the limiting sleeve 9 at the side of the first limiting hole 10 is provided with a second limiting hole 11, the inner bearing of the limiting sleeve 9 is provided with a shaft rod 12, the tail end of the shaft rod 12 is provided with a handle 13, and the upper end face of the main rod 7 is provided with a locking mechanism 14.
The locking mechanism 14 comprises a locking plate 1401 and a positioning bolt 1402, the locking plate 1401 is fixedly arranged on the upper end surface of the main rod 7, the positioning bolt 1402 is connected to the end portion of the locking plate 1401 in a threaded mode, the limiting sleeve 9 is conveniently limited through the locking mechanism 14, and the device can be conveniently unfolded for use and folded for storage.
The stop bolt 1402 is symmetrically disposed on the locking plate 1401, and the stop bolt 1402 and the first and second stop holes 10 and 11 are both threaded, so as to be respectively stop the stop sleeve 9 corresponding to the standard state trade customs flowchart and the actual state trade customs flowchart, and so as to allow the stop bolt 1402 to be inserted into the first stop hole 10 to allow the shaft rod 12 to be stably folded, and allow the stop bolt 1402 to be inserted into the second stop hole 11 to allow the shaft rod 12 to be stably unfolded.
The working principle is as follows: when the teaching device for national trade customs comparison teaching is used, firstly, as shown in figure 1, the device is moved to a teaching position through a universal brake wheel 2, then a handle 13 drives a shaft rod 12 to rotate in a limiting sleeve 9, so that a flow chart is expanded, the rest flow chart of the same operation is obtained, so that a standard national trade customs flow chart and an actual national trade customs flow chart are expanded simultaneously for comparison teaching, when the device is required to be folded after the teaching is finished, as shown in figure 1-2, the handle 13 is rotated reversely to drive the shaft rod 12 to rotate reversely in the limiting sleeve 9, so that the flow chart is rolled, then a rubber band sleeve is arranged on the rolled flow chart to prevent the rubber band sleeve from loosening, the rest flow chart of the same operation is separated from a second limiting hole 11, then the shaft rod 12 is pushed, so that the limiting sleeve 9 rotates around a supporting arm 8, so that the shaft rod 12 and a main rod 7 are in a parallel state, at the moment, the first limiting hole 10 rotates and moves to the position under the positioning bolt 1402 along with the limiting sleeve 9, then the positioning bolt 1402 is rotated and inserted into the first limiting hole 10 to limit the limiting sleeve 9, so that the shaft rod 12 is stably positioned, and the rest shaft rod 12 is operated in the same way, so that the device is folded and stored or transported, and the practicability of the device is enhanced;
as shown in fig. 1 and fig. 3-4, when the height of the device needs to be adjusted to facilitate the viewing of the students at a distance, the lifting sleeve 5 is rotated to drive the main rod 7 to move along the positioning square rod 6, so as to adjust the height of the main rod 7, so that the main rod 7 drives the flow chart to adjust the height, and the students at a distance can conveniently view the height.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (6)
1. The utility model provides a teaching device for country trade customs clearance contrast teaching, includes base (1), universal brake wheel (2) and handle (13), its characterized in that: the universal brake wheel (2) is installed at the edge of the lower surface of the base (1), the supporting rod (3) is welded in the middle of the upper surface of the base (1), the lifting sleeve (5) is sleeved on the outer wall of the upper end of the supporting rod (3), the positioning square rod (6) is fixedly connected to the upper end face of the supporting rod (3), the main rod (7) is sleeved on the outer wall of the positioning square rod (6), the supporting arm (8) is fixedly connected to the outer wall of the upper end of the main rod (7), the limiting sleeve (9) is movably installed at the end of the supporting arm (8), the outer wall of the limiting sleeve (9) is provided with a first limiting hole (10), a second limiting hole (11) is formed in the outer wall of the limiting sleeve (9) at the side of the first limiting hole (10), the shaft lever (12) is installed on an inner bearing of the limiting sleeve (9), and the handle (13) is arranged at the tail end of the shaft lever (12), and a locking mechanism (14) is arranged on the upper end surface of the main rod (7).
2. The teaching device for state trade customs clearance contrast teaching of claim 1, wherein: the support rod (3) is connected with the lifting sleeve (5) through a bearing, and the outer wall of the support rod (3) is connected with the upper surface of the base (1) through a positioning rod (4).
3. The teaching device for state trade customs clearance contrast teaching of claim 1, wherein: the positioning square rod (6) and the main rod (7) form a sliding structure, and the main rod (7) is in threaded connection with the lifting sleeve (5).
4. The teaching device for state trade customs clearance contrast teaching of claim 1, wherein: the support arms (8) are symmetrically distributed on the main rod (7), the support arms (8) and the limiting sleeve (9) are rotatably arranged, and the limiting sleeve (9) is rotatably connected with the shaft rod (12).
5. The teaching device for state trade customs clearance contrast teaching of claim 1, wherein: the locking mechanism (14) comprises a locking plate (1401) and a positioning bolt (1402), the locking plate (1401) is fixedly installed on the upper end face of the main rod (7), and the end portion of the locking plate (1401) is connected with the positioning bolt (1402) in a threaded mode.
6. The teaching device for state trade customs clearance contrast teaching of claim 5, wherein: the positioning bolts (1402) are symmetrically arranged on the locking plate (1401), and the positioning bolts (1402), the first limiting hole (10) and the second limiting hole (11) are all in threaded arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122521708.XU CN216450244U (en) | 2021-10-20 | 2021-10-20 | A teaching device for state trade customs clearance contrast teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122521708.XU CN216450244U (en) | 2021-10-20 | 2021-10-20 | A teaching device for state trade customs clearance contrast teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216450244U true CN216450244U (en) | 2022-05-06 |
Family
ID=81350025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122521708.XU Active CN216450244U (en) | 2021-10-20 | 2021-10-20 | A teaching device for state trade customs clearance contrast teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216450244U (en) |
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2021
- 2021-10-20 CN CN202122521708.XU patent/CN216450244U/en active Active
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