CN212181729U

CN212181729U - Easily-adjusted counter for primary school mathematical operation

Info

Publication number: CN212181729U
Application number: CN202020058918.2U
Authority: CN
Inventors: 李兰平
Original assignee: Hunan University Of Finance And Economics
Current assignee: Hunan University Of Finance And Economics
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-12-18
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a mathematical operation is with counter convenient to adjust in primary school, including base, count pearl and fixed plate, the fixed stopper that is provided with in both ends of base, and the top of stopper is connected with the fixed block, the inboard activity of fixed block is provided with the loose axle, and the outside movable mounting of loose axle has the regulation pole, the below of adjusting the pole is provided with the push rod, and the bottom of push rod is pasted and is had the sucking disc, the fixed up end that sets up at the base of fixed plate avris, and movable mounting has an adjusting cylinder on the base of fixed plate avris, adjusting cylinder's top and the one end of connecting rod link to each other, and the outside winding of connecting rod has the spring to the other end of connecting rod is connected with a. This primary school's mathematical operation is with counter convenient to adjust can help the student to look over the correctness of number fast through the digit of count pearl rear to the counter is placed and is equipped with the structure of stabilizing its position behind the desktop, and the convenient count pearl after damaging is changed simultaneously.

Description

Easily-adjusted counter for primary school mathematical operation

Technical Field

The utility model relates to a primary school's mathematics technical field specifically is a primary school's mathematical operation is with counter convenient to adjust.

Background

When a pupil learns mathematics, in order to improve the memory after learning and the manipulative ability during learning, the pupil needs to use a plurality of auxiliary tools, wherein a counter is a common tool in mathematics learning, and learns different numbers by dialing a counting bead and looking at the number difference of the counting bead, however, the existing counter still has the following defects during actual use:

when the student used alone, lacked the device whether its judgement number of help is correct, consequently be unfavorable for the student to use the counter alone and study to counter itself is lighter, places just can empty after the desktop dabs, consequently can cause the confusion of preceding count, also conveniently changes the count pearl of damage simultaneously, to above-mentioned problem, the urgent need is innovated the design on the basis of original counter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a primary school's mathematical operation is with counter convenient to adjust to solve above-mentioned background art and propose to lack its device of judging the number correctly of help, consequently be unfavorable for the student and use the counter alone and study, place and just can empty after the desktop dabs, consequently can cause the confusion of preceding count, simultaneously also inconvenient carry out the problem of changing to the count pearl of damage.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a counter convenient to adjust for primary school's mathematical operation, includes base, count pearl and fixed plate, the fixed stopper that is provided with in both ends of base, and the top of stopper is connected with the fixed block, the inboard activity of fixed block is provided with the loose axle, and the outside movable mounting of loose axle has the regulation pole, the below of adjusting the pole is provided with the push rod, and the bottom of push rod pastes and has the sucking disc to set up the fixed slot in the base in the sucking disc outside, the fixed up end that sets up at the base of fixed plate, and movable mounting has an adjusting cylinder on the base of fixed plate avris, and the outside cover of adjusting cylinder is equipped with the count pearl, the top of adjusting cylinder and the one end of connecting rod link to each other, and the outside winding of connecting rod has the spring to.

Preferably, the cross section of the limiting block is of an arc-shaped structure, the middle of the limiting block is hollow, and the height of the limiting block is lower than that of the push rod.

Preferably, the adjusting rod forms a rotating structure through the movable shaft and the fixed block, and the adjusting rod is symmetrically distributed about the vertical axis of the base.

Preferably, the end parts of the push rod and the adjusting rod are of hemispherical structures, and the push rod, the base and the limiting block are connected in a sliding mode.

Preferably, the outer section of the adjusting cylinder is of a rectangular structure, the inner section of the adjusting cylinder is of a circular structure, and the adjusting cylinder and the base are bearings.

Preferably, one end of the connecting rod is rotatably connected with the adjusting cylinder, and the other end of the connecting rod is in threaded connection with the movable cylinder.

Compared with the prior art, the beneficial effects of the utility model are that: the counter convenient to adjust for primary school mathematical operation can help students to quickly check whether the number is correct or not through the numbers behind the counting beads, and the counter is placed behind a desktop and provided with a structure for stabilizing the position of the counter, so that the damaged counting beads can be conveniently replaced;

1. the adjusting rod rotates to drive the push rod to push the sucker to extrude towards the desktop, so that the purpose of fixing the position of the counter is achieved, the counter is prevented from toppling in the operation process, the number is arranged behind the counting bead, and the purpose of checking the number can be achieved by rotating the adjusting cylinder, so that the error of a student can be corrected;

2. the outer cross-section of adjusting a section of thick bamboo and a movable cylinder is the rectangle structure, can avoid the count pearl rotatory at the in-process that removes like this, lets its bottom and base separation through rotating a movable cylinder, can realize the change to the count pearl.

Drawings

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

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

FIG. 3 is a schematic view of the structure of the adjusting lever of the present invention after rotating;

FIG. 4 is a schematic top view of the adjusting cylinder of the present invention;

FIG. 5 is a schematic view of a back side sectional structure of the adjusting cylinder of the present invention;

fig. 6 is a schematic side view of the present invention.

In the figure: 1. a base; 2. a limiting block; 3. a fixed block; 4. a movable shaft; 5. adjusting a rod; 6. a push rod; 7. a suction cup; 8. fixing grooves; 9. an adjusting cylinder; 10. counting the beads; 11. a connecting rod; 12. a spring; 13. a movable barrel; 14. and (7) fixing the plate.

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. 1-6, the present invention provides a technical solution: a counter convenient to adjust for primary school mathematical operation comprises a base 1, a limiting block 2, a fixed block 3, a movable shaft 4, an adjusting rod 5, a push rod 6, a sucker 7, a fixed groove 8, an adjusting cylinder 9, a counting bead 10, a connecting rod 11, a spring 12, a movable cylinder 13 and a fixed plate 14, wherein the limiting block 2 is fixedly arranged at two ends of the base 1, the fixed block 3 is connected with the top of the limiting block 2, the movable shaft 4 is movably arranged at the inner side of the fixed block 3, the adjusting rod 5 is movably arranged at the outer side of the movable shaft 4, the push rod 6 is arranged below the adjusting rod 5, the sucker 7 is adhered at the bottom of the push rod 6, the fixed groove 8 is arranged in the base 1 at the outer side of the sucker 7, the fixed plate 14 is fixedly arranged on the upper end face of the base 1, the adjusting cylinder 9 is movably arranged on the base 1 at, the top of the adjusting cylinder 9 is connected with one end of a connecting rod 11, the outer side of the connecting rod 11 is wound with a spring 12, and the other end of the connecting rod 11 is connected with a movable cylinder 13;

the section of the limiting block 2 is of an arc-shaped structure, the middle of the limiting block 2 is hollow, the height of the limiting block 2 is lower than that of the push rod 6, the adjusting rod 5 forms a rotating structure through the movable shaft 4 and the fixing block 3, the adjusting rod 5 is symmetrically distributed about the vertical axis of the base 1, the end parts of the push rod 6 and the adjusting rod 5 are both of a hemispherical structure, the push rod 6, the base 1 and the limiting block 2 are in sliding connection, the adjusting rod 5 is rotated to be in a vertical state, the push rod 6 is pushed to slide on the limiting block 2 and the base 1 through the end part of the adjusting rod, the sucker 7 can be driven to be tightly attached to a desktop through the pushing of the push rod;

the outer cross-section of adjusting a section of thick bamboo 9 is the rectangle structure, its interior cross-section is circular structure, and adjust a section of thick bamboo 9 and base 1 and be the bearing, the one end of connecting rod 11 is connected for rotating with adjusting a section of thick bamboo 9, and the other end of connecting rod 11 and a movable section of thick bamboo 13 are threaded connection, the rectangle structure takes place to rotate when can avoiding counting pearl 10 to remove, look over whether the figure on the counting pearl 10 can contrast the number through rotating an adjustment section of thick bamboo 9, let its bottom separate with base 1 through rotating a movable section of thick bamboo 13 at last, can realize the change to counting pearl 10.

The working principle is as follows: when the counter convenient to adjust for primary school mathematical operation is used, as shown in fig. 1-3, firstly, the counter is horizontally placed on a table top, as shown in fig. 2, the adjusting rod 5 is rotated to be in a vertical state, the end of the adjusting rod pushes the push rod 6 to slide on the limiting block 2 and the base 1, as shown in fig. 3, the sucker 7 can be driven to be tightly attached to the table top through pushing of the push rod 6, so that stability of the counter during placement can be achieved, when the counter does not need to be fixed, the adjusting rod 5 is rotated to an initial position, and the counter can be taken up;

as shown in fig. 1 and fig. 4-6, the combination of different numbers can be realized by shifting the counting ball 10, as shown in fig. 4, the outer section of the adjusting cylinder 9 is of a rectangular structure, so that the counting ball 10 can be prevented from rotating when moving, when the counting ball 10 moves to the outer side of the adjusting cylinder 9, as shown in fig. 5, the number on the counting ball 10 can be checked by rotating the adjusting cylinder 9 to compare the number, and the spring 12 can be driven to recover the initial position when the adjusting cylinder 9 is loosened to rotate, as shown in fig. 5, and finally, the bottom of the adjusting cylinder 13 is separated from the base 1 by rotating the adjusting cylinder 13, so that the counting ball 10 can be replaced.

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 may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a primary school's mathematical operation is with counter convenient to adjust, includes base (1), count pearl (10) and fixed plate (14), its characterized in that: the adjustable counting device is characterized in that limit blocks (2) are fixedly arranged at two ends of a base (1), a fixed block (3) is connected to the tops of the limit blocks (2), movable shafts (4) are movably arranged on the inner sides of the fixed blocks (3), adjusting rods (5) are movably arranged on the outer sides of the movable shafts (4), push rods (6) are arranged below the adjusting rods (5), suckers (7) are pasted at the bottoms of the push rods (6), fixing grooves (8) are formed in the base (1) on the outer sides of the suckers (7), a fixing plate (14) is fixedly arranged on the upper end face of the base (1), an adjusting cylinder (9) is movably arranged on the base (1) on the side of the fixing plate (14), counting beads (10) are sleeved on the outer side of the adjusting cylinder (9), the top of the adjusting cylinder (9) is connected with one end of a connecting rod (11), and a spring (12) is wound, and the other end of the connecting rod (11) is connected with a movable cylinder (13).

2. A readily adjustable counter for use in primary school mathematical operations, as claimed in claim 1, wherein: the cross section of the limiting block (2) is of an arc-shaped structure, the middle of the limiting block is hollow, and the height of the limiting block (2) is lower than that of the push rod (6).

3. A readily adjustable counter for use in primary school mathematical operations, as claimed in claim 1, wherein: the adjusting rod (5) forms a rotating structure through the movable shaft (4) and the fixed block (3), and the adjusting rod (5) is symmetrically distributed about the vertical axis of the base (1).

4. A readily adjustable counter for use in primary school mathematical operations, as claimed in claim 1, wherein: the end parts of the push rod (6) and the adjusting rod (5) are of hemispherical structures, and the push rod (6), the base (1) and the limiting block (2) are connected in a sliding mode.

5. A readily adjustable counter for use in primary school mathematical operations, as claimed in claim 1, wherein: the outer section of the adjusting cylinder (9) is of a rectangular structure, the inner section of the adjusting cylinder is of a circular structure, and the adjusting cylinder (9) and the base (1) are bearings.

6. A readily adjustable counter for use in primary school mathematical operations, as claimed in claim 1, wherein: one end of the connecting rod (11) is rotatably connected with the adjusting cylinder (9), and the other end of the connecting rod (11) is in threaded connection with the movable cylinder (13).