CN214152174U

CN214152174U - Novel probability mathematics bar statistical chart demonstration device

Info

Publication number: CN214152174U
Application number: CN202120190825.XU
Authority: CN
Inventors: 张文倩
Original assignee: Nanchang Changbei Second Primary School
Current assignee: Nanchang Changbei Second Primary School
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2021-09-07
Anticipated expiration: 2031-01-23

Abstract

The utility model discloses a novel probability mathematics bar statistical chart demonstration device, including the main tank body and bar display module, the upper surface swing joint of the main tank body has the case lid, the lower surface swing joint of case lid has horizontal pole, the inside fixedly connected with bar display module of the main tank body, the upper surface of the main tank body is located one side the place ahead swing joint of bar display module and has the auxiliary rod, the rear surface fixed connection of the main tank body has the rebound switch, the inside of the main tank body is located the rear end fixedly connected with telescopic link of bar display module. A novel probability mathematics bar statistical chart presentation device, can inlay the inside of establishing at the main tank body to horizon bar and auxiliary rod upset when carrying presentation device, can directly open the use when needs use, need not assemble once more to bar display module can be nimble tensile and shorten when using.

Description

Novel probability mathematics bar statistical chart demonstration device

Technical Field

The utility model relates to a statistical chart presentation device field, in particular to novel probability mathematics bar statistical chart presentation device.

Background

The probability mathematics bar statistical chart demonstration device is a demonstration device which can more intuitively present the statistical chart in front of the learner, and can better assist the demonstrator in teaching; however, the prior probability mathematics bar statistical chart demonstration device has some defects, the demonstration device needs to be assembled in a complex way before demonstration, the demonstration device is not easy to carry, and the bar display component of the demonstration device is not flexible enough.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a novel probability mathematics bar statistical chart demonstration device can effectively solve the technical problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel probability mathematics bar statistical chart presentation device, includes the main tank body and bar display module, the upper surface swing joint of the main tank body has the case lid, the lower surface swing joint of case lid has horizontal pole, the inside fixedly connected with bar display module of the main tank body, the upper surface of the main tank body is located one side the place ahead swing joint of bar display module and is had the auxiliary rod, the rear surface fixedly connected with resilience switch of the main tank body, the inside of the main tank body is located bar display module's rear end fixedly connected with telescopic link.

Preferably, the upper surface of the main box body is located in the front of the bar-shaped display assembly and is provided with an embedding groove, the locking groove is formed in one end of the upper surface of the main box body, a lock catch is fixedly connected to one end of the main box body, an installation cavity is formed in the upper surface of the main box body, the installation cavity is a plurality of, and the bar-shaped display assembly is fixed with the main box body through the embedding installation cavity.

Preferably, a groove is formed in one side of the lower surface of the box cover, a groove is also formed in the surface, close to the edge, of one side of the box cover, the two grooves are communicated, a buckle is fixedly connected to one end of the lower surface of the box cover, a lifting handle is movably connected to the upper surface of the box cover, and the box cover is movably connected with the main box body through a hinge.

Preferably, the front surfaces of the two ends of the horizontal cross rod are fixedly connected with fastening devices, and one end of the horizontal cross rod is embedded into the groove and movably connected with the box cover through the fastening devices.

Preferably, the auxiliary groove has been seted up to the inside of auxiliary rod, the inside lower extreme of auxiliary rod is equipped with the loose axle, the auxiliary rod inlays through the loose axle and establishes groove and main tank body swing joint, the other end embedding auxiliary groove of horizontal pole is fixed with the auxiliary rod through fastener.

Preferably, the side surface of the telescopic rod is provided with a resilience buckle, the upper end surface of the telescopic rod is fixedly connected with an auxiliary plate, one side of the auxiliary plate is fixed with the rear surface of the bar-shaped display assembly, the bar-shaped display assembly is formed by sequentially sleeving a plurality of square cylinders, the telescopic rod is formed by sequentially sleeving a plurality of round cylinders, and the inner surface of each round cylinder is longitudinally provided with a limiting sliding chute.

Preferably, the rear surface of the rebound switch is located inside the main box body and is fixedly connected with a return spring, and the other end of the return spring is fixedly connected with the telescopic rod.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, through the auxiliary rod that sets up, when using horizontal pole, the other end of horizontal pole can inlay and establish into the auxiliary tank of auxiliary rod, and it is fixed with fastener, make horizontal pole more steady when using, the auxiliary rod can also overturn when not using and place in inlaying and establishing the groove, can not occupy the space of the main tank body, telescopic link and resilience switch through setting up, when extension bar display module, utilize the resilience switch to press the resilience buckle, make the resilience buckle return and contract, stimulate bar display module this moment again alright with extend to the height that needs, the telescopic link can be nimble make bar display module flexible.

Drawings

Fig. 1 is a schematic view of the overall structure of a novel probability mathematics bar statistic chart demonstration device of the utility model;

FIG. 2 is a rear view of the novel probability mathematics bar chart demonstration device of the utility model;

FIG. 3 is an enlarged view of the point A in FIG. 1 of the novel probability mathematics bar statistic chart demonstration device of the present invention;

fig. 4 is the utility model discloses a novel probability mathematics bar statistics graph demonstration device's local section view.

In the figure: 1. a main box body; 101. embedding a groove; 102. locking the groove; 103. locking; 2. a box cover; 201. a groove; 202. buckling; 203. lifting the handle; 3. a horizontal cross bar; 301. a fastening device; 4. a bar display component; 5. an auxiliary lever; 501. an auxiliary groove; 6. a rebound switch; 601. a return spring; 7. a telescopic rod; 701. rebounding the buckle; 702. an auxiliary plate.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a novel probability mathematics bar-shaped statistical chart demonstration device comprises a main box body 1 and a bar-shaped display component 4, wherein the upper surface of the main box body 1 is movably connected with a box cover 2, the lower surface of the box cover 2 is movably connected with a horizontal cross rod 3, the bar-shaped display component 4 is fixedly connected inside the main box body 1, the upper surface of the main box body 1, which is positioned in front of one side of the bar-shaped display component 4, is movably connected with an auxiliary rod 5, the rear surface of the main box body 1 is fixedly connected with a rebound switch 6, and the rear end of the bar-shaped display component 4, which is positioned inside the main box body 1, is fixedly connected with a telescopic rod 7;

an embedding groove 101 is formed in the upper surface of the main box body 1 in front of the bar-shaped display assembly 4, a locking groove 102 is formed in one end of the upper surface of the main box body 1, a lock catch 103 is fixedly connected to the surface of one end of the main box body 1, a plurality of installation cavities are formed in the upper surface of the main box body 1, and the bar-shaped display assembly 4 is fixed with the main box body 1 through the embedding installation cavities; a groove 201 is formed in one side of the lower surface of the box cover 2, a groove 201 is also formed in the surface of one side of the box cover 2 close to the edge, the two grooves 201 are communicated, a buckle 202 is fixedly connected to one end of the lower surface of the box cover 2, a lifting handle 203 is movably connected to the upper surface of the box cover 2, and the box cover 2 is movably connected with the main box body 1 through a hinge; the front surfaces of two ends of the horizontal cross rod 3 are fixedly connected with a fastening device 301, and one end of the horizontal cross rod 3 is embedded into the groove 201 and is movably connected with the box cover 2 through the fastening device 301; an auxiliary groove 501 is formed in the auxiliary rod 5, a movable shaft is arranged at the lower end of the inner part of the auxiliary rod 5, the auxiliary rod 5 is embedded into the embedding groove 101 through the movable shaft and movably connected with the main box body 1, the other end of the horizontal cross rod 3 is embedded into the auxiliary groove 501 and fixed with the auxiliary rod 5 through the fastening device 301, when the horizontal cross rod 3 is used, the other end of the horizontal cross rod 3 can be embedded into the auxiliary groove 501 of the auxiliary rod 5 and fixed through the fastening device 301, so that the horizontal cross rod 3 is more stable when used, and the auxiliary rod 5 can be overturned to be placed in the embedding groove 101 when not used, so that the auxiliary rod does not occupy the space of the main box body 1; a rebound buckle 701 is arranged on the side surface of the telescopic rod 7, an auxiliary plate 702 is fixedly connected to the upper end surface of the telescopic rod 7, one side of the auxiliary plate 702 is fixed with the rear surface of the bar-shaped display assembly 4, the bar-shaped display assembly 4 is formed by sequentially sleeving a plurality of square cylinders, the telescopic rod 7 is formed by sequentially sleeving a plurality of round cylinders, and a limiting sliding chute is longitudinally arranged on the inner surface of each round cylinder; the inside fixedly connected with return spring 601 that rebound switch 6's rear surface is located main tank 1, return spring 601's the other end and telescopic link 7 fixed connection, when extension bar display module 4, utilize rebound switch 6 to press resilience buckle 701 for resilience buckle 701 returns and contracts, this moment stimulate bar display module 4 alright with extend to the height that needs again, telescopic link 7 can be nimble make bar display module 4 flexible.

It should be noted that the utility model relates to a novel probability mathematics bar statistical chart demonstration device, when in use, the auxiliary rod 5 is firstly turned out from the embedding groove 101, then the horizontal cross rod 3 is turned out from the groove 201, at this time, the rebounding buckle 701 is pressed by the rebounding switch 6, so that the telescopic rod 7 can freely stretch and retract, the stretching length of the telescopic rod 7 determines the stretching height of the bar display component 4, the fastening devices 301 at the two ends of the horizontal cross rod 3 are used for fixing the height of the horizontal cross rod 3, the bar display component 4 can be accurately positioned by the horizontal cross rod 3 when the stretching height is reached, after the demonstration device is used, each rebounding buckle 701 is firstly pressed towards the inside of the telescopic rod 7, so that the circular cylinder can be sequentially contracted until the telescopic rod 7 is completely retracted into the inside of the main box body 1, at this time, the bar display component 4 is also retracted into the installation cavity, then, the fastening devices 301 at the two ends of the horizontal cross rod 3 are loosened, the fastening devices 301 on the auxiliary rod 5 are disassembled, then the auxiliary rod 5 and the horizontal cross rod 3 are sequentially placed in the embedding groove 101 and the groove 201 in an overturning mode respectively, and finally the buckle 202 is inserted into the locking groove 102 to close the main box body 1, so that the demonstration device can be lifted up to be conveniently carried.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel probability mathematics bar statistics picture demonstration device which characterized in that: including main tank body (1) and bar display module (4), the upper surface swing joint of main tank body (1) has case lid (2), the lower surface swing joint of case lid (2) has horizontal pole (3), the inside fixedly connected with bar display module (4) of main tank body (1), the upper surface of main tank body (1) is located one side the place ahead swing joint of bar display module (4) and has auxiliary rod (5), the rear surface fixedly connected with resilience switch (6) of main tank body (1), the inside rear end fixedly connected with telescopic link (7) that is located bar display module (4) of main tank body (1).

2. The novel probabilistic mathematical bar chart presentation device of claim 1, wherein: the utility model discloses a bar display module, including main box body (1), lock groove (102), main box body (1) one end fixed surface is connected with hasp (103), the installation cavity has been seted up to the upper surface of main box body (1), the quantity of installation cavity is a plurality of, bar display module (4) are fixed with main box body (1) through embedding installation cavity.

3. The novel probabilistic mathematical bar chart presentation device of claim 1, wherein: the utility model discloses a portable electronic device, including case lid (2), case lid (2) and main box body (1), the lower surface one side of case lid (2) is seted up fluted (201), one side surface of case lid (2) is close to the edge and also is seted up fluted (201), two recess (201) intercommunication, lower surface one end fixedly connected with buckle (202) of case lid (2), the upper surface swing joint of case lid (2) has carries handle (203), case lid (2) pass through hinge and main box body (1) swing joint.

4. The novel probabilistic mathematical bar chart presentation device of claim 1, wherein: the front surfaces of two ends of the horizontal cross rod (3) are fixedly connected with fastening devices (301), and one end of the horizontal cross rod (3) is embedded into the groove (201) and is movably connected with the box cover (2) through the fastening devices (301).

5. The novel probabilistic mathematical bar chart presentation device of claim 1, wherein: auxiliary tank (501) have been seted up to the inside of auxiliary rod (5), the inside lower extreme of auxiliary rod (5) is equipped with the loose axle, auxiliary rod (5) are inlayed through the loose axle and are established groove (101) and main tank body (1) swing joint, the other end embedding auxiliary tank (501) of horizontal pole (3) are fixed with auxiliary rod (5) through fastener (301).

6. The novel probabilistic mathematical bar chart presentation device of claim 1, wherein: the side surface of telescopic link (7) is equipped with resilience buckle (701), up end fixedly connected with accessory plate (702) of telescopic link (7), one side of accessory plate (702) and the rear surface of bar display module (4) are fixed, bar display module (4) are formed by the suit of a plurality of square barrel in proper order, telescopic link (7) are formed by the suit of a plurality of circular barrel in proper order, the internal surface of circular barrel vertically is equipped with spacing spout.

7. The novel probabilistic mathematical bar chart presentation device of claim 1, wherein: the rear surface of the rebound switch (6) is located inside a return spring (601) fixedly connected with the main box body (1), and the other end of the return spring (601) is fixedly connected with an expansion rod (7).