CN212061550U

CN212061550U - Auxiliary teaching device for topographic map used on topographic scene

Info

Publication number: CN212061550U
Application number: CN202021007151.7U
Authority: CN
Inventors: 邹雷; 钟诚; 谷露
Original assignee: Army Military Transportation University of PLA Zhenjiang
Current assignee: Army Military Transportation University of PLA Zhenjiang
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-12-01
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to a topography map auxiliary teaching device is used at landform science scene, including bottom expansion plate, top expansion plate, telescopic joint and top expansion joint, the bottom expansion plate is equipped with three groups, every group bottom expansion plate sets up a plurality of and slides in proper order and cup joints, bottom expansion plate and top expansion plate structure and quantity are the same, the head and the tail of every group bottom expansion plate are connected in the link block and constitute triangle-shaped, the side of bottom expansion plate is equipped with the button, the lower extreme of button connects the trip, the downside of button is equipped with button push spring, button push spring cup joints on trip upper portion, the tip of bottom expansion plate is equipped with the dog, the upper end of dog transversely sets up the inserted block, the hook body of trip articulates in the opening of inserted block; the volume is small after folding, the carrying and the storage are convenient, and the folding and the scaling effects are good; can height-adjusting, can adjust the use height of telescopic joint according to the in-service use condition, also can adjust the use length of bottom expansion plate and top telescopic joint, the area that occupies when adjusting the use, it is very practical.

Description

Auxiliary teaching device for topographic map used on topographic scene

Technical Field

The utility model belongs to the technical field of the topography, concretely relates to topography scene uses topography map auxiliary teaching device.

Background

At present, the field work of topography does not specially carry drawing board equipment, the drawing board is inconvenient to carry during the operation, and simultaneously there is not a standard support, and the mode of holding or arranging the drawing board on ground is adopted during the operation, and this mode operation effect is unsatisfactory, and it is inconvenient to look over the map.

The multipurpose drawing board frame for the topographic field work with the application number of CN200920301151.5 comprises a drawing board groove, an X-shaped leg frame and a fixing belt; the drawing board grooves are fixedly connected with the X-shaped leg frame through rivets, and a fixing belt is connected between the two drawing board grooves; the portable belt is fixed on the bottom edge of the drawing board groove through rivets, when the operation place is changed, the drawing board can be transversely inserted into the groove of the drawing board groove, and the drawing board is convenient to carry; when the leg frame is opened, the frame legs are fixed at a certain angle by the fixing belts, so that the operation condition is improved; the utility model has the advantages of reasonable design, simple structure and convenient use. However, there are the following problems:

1. although the foldable woolen cloth has the folding function, the size is still large after being folded, the foldable woolen cloth is inconvenient to carry and occupies a space for storage;

2. only has fixed height and can not adjust the height according to the actual use condition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a topography scene uses topography map auxiliary teaching device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a topographic map auxiliary teaching device used in a topographic field comprises three groups of bottom expansion plates, top expansion plates, expansion joints and top expansion joints, wherein each group of bottom expansion plates is provided with a plurality of expansion joints which are sequentially sleeved in a sliding manner, the structures and the number of the bottom expansion plates and the top expansion plates are the same, the bottom expansion plates and the top expansion plates are connected in a connecting block in an end-to-end manner to form a triangle, the center of the connecting block is provided with an expansion joint fixing hole, the expansion joint at the lowest side is inserted in the expansion joint fixing hole, the expansion joints are also provided with three groups and fixed between the bottom expansion plates and the top expansion plates, each group of expansion joints are sequentially sleeved in a sliding manner, a long spring is arranged in each expansion joint, a button is arranged on the side surface of each bottom expansion plate, the lower end of the button is connected with a clamping hook, a button push spring is arranged on the, the end of the bottom expansion plate is provided with a stop block, the upper end of the stop block is transversely provided with an insertion block, and the hook body of the hook is hooked in an opening of the insertion block.

Preferably, the telescopic joint on the upper side is a top telescopic joint, and the lower end of the top telescopic joint is provided with a spring groove.

Preferably, a baffle fixing shell is arranged on one side of the upper end face of the telescopic joint, a baffle is arranged inside the baffle fixing shell, the baffle is connected with a push-pull rod through a baffle connecting rod, the push-pull rod is arranged outside the baffle fixing shell, and a baffle pushing spring is sleeved on the baffle connecting rod.

Preferably, the upper end surface of the button is an arc-shaped surface.

Preferably, the number of the telescopic joints is at least three, and the number of the bottom telescopic plates is at least four.

The utility model discloses a technological effect and advantage: this topography scene uses the effect and the some of topography map auxiliary teaching device:

1. the volume is small after folding, the carrying and the storage are convenient, and the folding and the scaling effects are good;

2. can height-adjusting, can adjust the use height of telescopic joint according to the in-service use condition, also can adjust the use length of bottom expansion plate and top telescopic joint, the area that occupies when adjusting the use, it is very practical.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the overall connection structure of the bottom expansion plate of the present invention;

FIG. 3 is a schematic view of the connection structure of adjacent bottom expansion plates of the present invention;

fig. 4 is an enlarged schematic view of the structure at a of the present invention;

fig. 5 is a schematic view of the hook structure of the present invention.

In the figure: 1. a bottom expansion plate; 2. an expansion joint; 3. a top expansion joint; 4. a top expansion plate; 5. a long spring; 6. a spring slot; 7. a stopper; 8. a button; 9. a push button push spring; 10. a hook is clamped; 11. a baffle plate fixing shell; 12. a baffle plate; 13. a baffle connecting rod; 14. the baffle pushes the spring; 15. a push-pull rod; 16. connecting blocks; 17. a telescopic joint fixing hole; 18. and (5) inserting the blocks.

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.

The utility model provides a topographic map auxiliary teaching device used in the field of topography as shown in figures 1-5, which comprises a bottom expansion plate 1, a top expansion plate 4, expansion joints 2 and a top expansion joint 3, wherein the bottom expansion plate 1 is provided with three groups, each group of bottom expansion plate 1 is provided with a plurality of expansion joints which are in sliding sleeve connection in sequence, the structures and the quantities of the bottom expansion plate 1 and the top expansion plate 4 are the same, the head and the tail of each group of bottom expansion plate 1 are connected in a connecting block 16 and form a triangle, the center of the connecting block 16 is provided with an expansion joint fixing hole 17, the expansion joint 2 at the lowest side is inserted in the expansion joint fixing hole 17, the expansion joints 2 are also provided with three groups and are fixed between the bottom expansion plate 1 and the top expansion plate 4, each group of expansion joints 2 is in sliding sleeve connection in sequence, each group of expansion joints 2 is provided with at least three, each, more practical, the inside of telescopic joint 2 is equipped with long spring 5, and the side of bottom expansion plate 1 is equipped with button 8, and button 8's up end is the arcwall face, conveniently presses, and trip 10 is connected to button 8's lower extreme, and button 8's downside is equipped with button and pushes away spring 9, and button pushes away spring 9 and cup joints on trip 10 upper portion, and bottom expansion plate 1's tip is equipped with dog 7, and dog 7's upper end transversely sets up inserted block 18, and trip 10's the body hookup that colludes is in the opening of inserted block 18.

The telescopic joint 2 of upside sets up to top telescopic joint 3, and the lower extreme of top telescopic joint 3 sets up spring groove 6, and spring groove 6 can hold long spring 5, reduces the space that long spring 5 occupy.

One side of the upper end face of the telescopic joint 2 is provided with a baffle fixing shell 11, a baffle 12 is arranged inside the baffle fixing shell 11, the baffle 12 is connected with a push-pull rod 15 through a baffle connecting rod 13, the push-pull rod 15 is arranged outside the baffle fixing shell 11, and a baffle pushing spring 14 is sleeved on the baffle connecting rod 13.

During adjustment, the button 8 is pressed, the button 8 drives the clamping hook 10 to move downwards, the clamping hook 10 is separated from the socket of the inserting block 18, and the bottom expansion plate 1 and the top expansion joint can be retracted; the height is adjusted to make, pushes the push-pull rod 15 to the outside, and the push-pull rod 15 passes through the baffle connecting rod 13 and stimulates the baffle 12, makes the baffle 12 retract to the baffle set casing 11 in, and the telescopic joint 2 that this baffle set casing 11 blockked just pops out under the promotion of long spring 5 this moment, according to the height of using, the operation different positions the push-pull rod 15 can, very convenient, practical.

Finally, it should be noted that: 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 modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims

1. The utility model provides a topography is on-spot uses topography map to assist teaching device, includes bottom expansion plate (1), top expansion plate (4), telescopic joint (2) and top telescopic joint (3), its characterized in that: the bottom expansion plate (1) is provided with three groups, each group of bottom expansion plate (1) is provided with a plurality of expansion plates and is sleeved in a sliding mode in sequence, the bottom expansion plate (1) and the top expansion plate (4) are identical in structure and quantity, the head and the tail of each group of bottom expansion plate (1) are connected in a connecting block (16) to form a triangle, an expansion joint fixing hole (17) is formed in the center of the connecting block (16), an expansion joint (2) at the lowest side is inserted in the expansion joint fixing hole (17), the expansion joint (2) is also provided with three groups and is fixed between the bottom expansion plate (1) and the top expansion plate (4), each group of expansion joints (2) is sleeved in a sliding mode in sequence, a long spring (5) is arranged inside the expansion joint (2), a button (8) is arranged on the side face of the bottom expansion plate (1), the lower end of the button (8) is connected with a clamping hook (10), and a button pushing spring, the button push spring (9) is sleeved on the upper portion of the clamping hook (10), a stop block (7) is arranged at the end portion of the bottom expansion plate (1), an insertion block (18) is transversely arranged at the upper end of the stop block (7), and a hook body of the clamping hook (10) is hooked in an opening of the insertion block (18).

2. The topographic map auxiliary teaching device used in the topographic field according to claim 1, wherein: the telescopic joint (2) on the upper side is set to be a top telescopic joint (3), and the lower end of the top telescopic joint (3) is provided with a spring groove (6).

3. The topographic map auxiliary teaching device used in the topographic field according to claim 1, wherein: the telescopic joint is characterized in that a baffle fixing shell (11) is arranged on one side of the upper end face of the telescopic joint (2), a baffle (12) is arranged inside the baffle fixing shell (11), the baffle (12) is connected with a push-pull rod (15) through a baffle connecting rod (13), the push-pull rod (15) is arranged outside the baffle fixing shell (11), and a baffle pushing spring (14) is sleeved on the baffle connecting rod (13).

4. The topographic map auxiliary teaching device used in the topographic field according to claim 1, wherein: the upper end surface of the button (8) is an arc-shaped surface.

5. The topographic map auxiliary teaching device used in the topographic field according to claim 1, wherein: the number of the telescopic joints (2) is at least three, and the number of the bottom telescopic plates (1) is at least four.