Calculation device

Abstract

The utility model provides a calculation device which comprises a supporting column, a wind-up roller, a steel cable, a steering pulley, a sliding groove, a movable base, an installation base, a fixed clamping block and an empty groove, the supporting column is installed on the upper end face of the movable base, the wind-up roller is rotatably arranged at the lower end in the supporting column, the steel cable is sleeved on the outer side face of the wind-up roller, and the steering pulley is installed at the upper end in the supporting column. A sliding groove is formed in the front end face of the supporting column, a movable seat is arranged in the sliding groove in a sliding mode, an installation seat is arranged on the front end face of the movable seat, an empty groove is formed in the movable seat, and a fixed clamping block is arranged in the empty groove in a sliding mode. The elastic force of the coil spring and the spring counteracts the weight of the calculation display screen body, so that the purpose of quickly adjusting the height of the calculation display screen body is achieved, the use is simple and convenient, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to a calculation device, belonging to the technical field of calculation devices. Background Art

[0002] Calculus is a branch of mathematics in higher mathematics that studies the differentiation, integration, and related concepts and applications of functions. It is a basic subject in mathematics. When teaching calculus, a large-screen display is needed for demonstration. The traditional display has a fixed structure and cannot be adjusted according to the actual situation when used by users of different heights, so it is less practical.

[0003] Chinese patent number CN 215862675 U proposes a calculus calculation device, which drives the threaded rod to rotate through a driving motor, and drives the display screen to move up and down through a moving seat with corresponding threaded holes, so as to achieve the purpose of adjusting the height of the display screen. However, the adjustment speed of this driving method is slow, the waiting time for adjustment is long, and the driving motor is limited by the position and length of the power cord. The movement is not convenient and free, and the practicality is low. Now there is an urgent need for a calculation device to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a calculation device to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure, and the elastic force of the coil spring and the weight of the calculation display screen body are offset, so as to achieve the purpose of quickly adjusting the height of the calculation display screen body. The utility model is simple and convenient to use and has strong practicality.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a calculation device, including a movable base, a calculation display screen body and an auxiliary adjustment component, the upper end surface of the movable base is provided with an auxiliary adjustment component, the front end surface of the auxiliary adjustment component is installed with the calculation display screen body, the auxiliary adjustment component includes a support column, a winding roller, a steel cable, a steering pulley, a sliding groove, a movable seat, a mounting seat, a fixed block and an empty slot, the upper end surface of the movable base is installed with a support column, a winding roller is rotatably provided at the lower end of the support column, a steel cable is sleeved on the outer side surface of the winding roller, a steering pulley is installed at the upper end of the support column, a sliding groove is provided on the front end surface of the support column, a movable seat is slidably provided inside the sliding groove, a mounting seat is provided on the front end surface of the movable seat, an empty slot is provided inside the movable seat, and a fixed block is slidably provided inside the empty slot.

[0006] Furthermore, a spherical groove is provided on the side of the inner wall of the sliding groove, and a plurality of groups of spherical grooves of equal specifications are provided, and the spherical grooves are engaged with the fixed blocks.

[0007] Furthermore, the empty slots and fixed blocks are provided in four groups with equal specifications, a spring is provided inside the empty slots, and two ends of the spring are respectively in contact with the inner wall of the empty slots and the inner side surface of the fixed blocks.

[0008] Furthermore, both ends of the winding roller are rotatably connected to the inner wall of the support column through a bearing connector, and a coil spring is provided between the winding roller and the bearing connector.

[0009] Furthermore, a connecting buckle is provided on the upper end surface of the movable seat, and the steel cable passes through the steering pulley and is connected to the movable seat through the connecting buckle.

[0010] Furthermore, a limiting groove is provided inside the sliding groove, and a limiting plate is provided on the rear end surface of the movable seat, and the limiting plate is slidably engaged along the inner wall of the limiting groove.

[0011] Furthermore, the calculation display screen body is mounted on the outer side of the mounting seat, and when the movable seat is located at the central position inside the sliding groove, the elastic force of the coil spring is equal to the gravity of the display screen body and the movable seat.

[0012] The beneficial effects of the utility model: a calculation device of the utility model is added with a winding roller, a coil spring, a fixed block, a spring and a movable seat. When the height of the calculation display screen body needs to be lowered, the winding roller will release the steel cable outward, thereby increasing the elastic force provided by the coil spring. After releasing the hand, the elastic force of the coil spring is greater than the gravity of the calculation display screen body. At this time, the calculation display screen body has an upward trend, while the fixed block and the spring hinder the upward trend, and finally make the coil spring elastic force and the sum of the gravity of the calculation display screen body and the spring elastic force balance each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 It is a structural schematic diagram of a calculation device of the utility model;

[0015] Figure 2 It is a structural schematic diagram of another perspective of a calculation device of the utility model;

[0016] Figure 3 It is a structural schematic diagram of an auxiliary adjustment component in a calculation device of the utility model;

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of a support column in a calculation device of the utility model;

[0018] In the figure: 1- movable base, 2- calculation display screen body, 3- auxiliary adjustment component, 31- support column, 32- winding roller, 321- winding spring, 33- steel cable, 34- steering pulley, 35- sliding groove, 351- limiting groove, 352- spherical groove, 36- movable seat, 361- connecting buckle, 362- limiting plate, 37- mounting seat, 38- fixed block, 39- empty groove, 391- spring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a calculation device, including a movable base 1, a calculation display screen body 2 and an auxiliary adjustment component 3, the upper end surface of the movable base 1 is provided with an auxiliary adjustment component 3, the front end surface of the auxiliary adjustment component 3 is installed with the calculation display screen body 2, the auxiliary adjustment component 3 includes a support column 31, a winding roller 32, a steel cable 33, a steering pulley 34, a sliding groove 35, a movable seat 36, a mounting seat 37, a fixed block 38 and an empty groove 39, the upper end surface of the movable base 1 is installed with a support column 31, a winding roller 32, a steel cable 33, a steering pulley 34, a sliding groove 35, a movable seat 36, a mounting seat 37, a fixed block 38 and an empty groove 39, A support column 31 is provided with a winding roller 32 rotatably arranged at the lower end thereof, a steel cable 33 is sleeved on the outer side of the winding roller 32, a steering pulley 34 is installed at the upper end thereof, a sliding groove 35 is provided on the front end surface of the support column 31, a movable seat 36 is slidably arranged inside the sliding groove 35, a mounting seat 37 is provided on the front end surface of the movable seat 36, an empty groove 39 is provided inside the movable seat 36, a fixed block 38 is slidably arranged inside the empty groove 39, and this design solves the problem that the height adjustment of the original calculation device is not convenient enough.

[0021] As the first embodiment of the present utility model: a spherical groove 352 is provided on the inner wall side of the sliding groove 35, and several groups of spherical grooves 352 and other specifications are provided. The spherical groove 352 and the fixed block 38 are engaged with each other, and the engagement and abutment between the spherical groove 352 and the fixed block 38 can play a certain limiting and hindering role on the movable seat 36. The empty groove 39 and the fixed block 38 are provided in four groups with equal specifications. A spring 391 is provided inside the empty groove 39, and the two ends of the spring 391 are respectively abutted against the inner wall of the empty groove 39 and the inner side of the fixed block 38. The spring 391 can provide elastic force for the engagement of the fixed block 38 and the spherical groove 352, thereby achieving the effect of balancing the force of the movable seat 36. The two ends of the winding roller 32 are rotatably connected to the inner wall of the support column 31 through a bearing connector, and a coil spring 321 is provided between the winding roller 32 and the bearing connector. The coil spring 321 can make the winding roller 32 When there is external force, the steel cable 33 is retracted, and a connecting buckle 361 is provided on the upper end surface of the movable seat 36. After the steel cable 33 passes through the steering pulley 34, it is connected to the movable seat 36 through the connecting buckle 361. The retraction and extension of the steel cable 33 can pull the movable seat 36 to move through the connecting buckle 361. A limiting groove 351 is provided inside the sliding groove 35, and a limiting plate 362 is provided on the rear end surface of the movable seat 36. The limiting plate 362 slides and engages along the inner wall of the limiting groove 351. The design of the limiting groove 351 and the limiting plate 362 can prevent the movable seat 36 from detaching from the sliding groove 35. The calculation display screen body 2 is installed on the outer side surface of the mounting seat 37. When the movable seat 36 is located in the central position inside the sliding groove 35, the elastic force of the coil spring 321 is equal to the gravity of the display screen body and the movable seat 36. This design is used to balance the force on the movable seat 36 so that the calculation display screen body 2 remains stationary in the absence of external force.

[0022] As a second embodiment of the present invention: when the calculation display screen body 2 and the movable seat 36 are located in the central position inside the sliding groove 35, the elastic force of the coil spring 321 is equal to the gravity of the display screen body and the movable seat 36. When the user needs to adjust the height of the calculation display screen body 2, for example, if the calculation display screen body 2 needs to be moved upward, the user only needs to drag the calculation display screen body 2 upward with his hand. Under the action of external force, the balance between the coil spring 321 and the gravity of the calculation display screen body 2 is broken. As the calculation display screen body 2 rises, the winding roller 32 retracts the steel cable 33, and the elastic force provided by the coil spring 321 will decrease accordingly. When the calculation display screen body 2 rises to a suitable height, the user releases his hand. At this time, the elastic force of the coil spring 321 is less than the gravity of the calculation display screen body 2, and the calculation display screen body 2 has a tendency to fall. However, since the fixed block 38 and the spherical groove 352 are engaged with each other, and the spring 391 provides elastic force, the downward trend of the calculation display screen body 2 is hindered, and finally the elastic force of the coil spring 321 and the sum of the elastic force of the spring 391 are balanced with the calculation display screen body 2, and the calculation display screen remains stationary; similarly, when the height of the calculation display screen body 2 needs to be lowered, the winding roller 32 will release the steel cable 33 outward, thereby increasing the elastic force provided by the coil spring 321. After releasing the hand, the elastic force of the coil spring 321 is greater than the gravity of the calculation display screen body 2. At this time, the calculation display screen body 2 has an upward trend, while the fixed block 38 and the spring 391 hinder the upward trend, and finally the elastic force of the coil spring 321 and the sum of the gravity of the calculation display screen body 2 and the elastic force of the spring 391 are balanced with each other.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A calculation device, comprising a movable base, a calculation display screen body and an auxiliary adjustment component, characterized in that: The upper end surface of the movable base is provided with an auxiliary adjustment component, and the front end surface of the auxiliary adjustment component is installed with a calculation display screen body; The auxiliary adjustment component includes a support column, a winding roller, a steel cable, a steering pulley, a sliding groove, a movable seat, a mounting seat, a fixed block and an empty groove. The upper end surface of the movable base is installed with a support column, a winding roller is rotatably arranged at the lower end of the support column, a steel cable is sleeved on the outer side surface of the winding roller, a steering pulley is installed at the upper end of the support column, a sliding groove is provided on the front end surface of the support column, a movable seat is slidably arranged inside the sliding groove, a mounting seat is provided on the front end surface of the movable seat, an empty groove is provided inside the movable seat, and a fixed block is slidably arranged inside the empty groove.

2. A calculation device according to claim 1, characterized in that: A spherical groove is provided on the side of the inner wall of the sliding groove. The spherical grooves are arranged in a plurality of groups with the same specifications. The spherical grooves are engaged with the fixed clamping blocks.

3. A calculation device according to claim 1, characterized in that: The empty slots and fixed blocks are arranged in four groups with equal specifications. A spring is arranged inside the empty slots, and two ends of the spring are respectively in contact with the inner wall of the empty slots and the inner side surface of the fixed blocks.

4. A calculation device according to claim 1, characterized in that: The two ends of the winding roller are rotatably connected to the inner wall of the support column through a bearing connecting piece, and a coil spring is arranged between the winding roller and the bearing connecting piece.

5. A calculation device according to claim 1, characterized in that: The upper end surface of the movable seat is provided with a connecting buckle, and the steel cable passes through the steering pulley and is connected to the movable seat through the connecting buckle.

6. A calculation device according to claim 1, characterized in that: A limiting groove is provided inside the sliding groove, and a limiting plate is provided on the rear end surface of the moving seat. The limiting plate is slidably engaged along the inner wall of the limiting groove.

7. A calculation device according to claim 1, characterized in that: The calculation display screen body is installed on the outer side of the installation seat. When the moving seat is located at the central position inside the sliding groove, the elastic force of the coil spring is equal to the gravity of the display screen body and the moving seat.

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