CN216524282U

CN216524282U - Balance for physical teaching

Info

Publication number: CN216524282U
Application number: CN202123296456.1U
Authority: CN
Inventors: 苏梓明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-13
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a balance for physical teaching, which comprises a balance main body and a protective box, wherein the lower end of the balance main body is fixedly connected with a balance support, the balance support is arranged above the protective box, a lifting mechanism is arranged in the protective box, the lifting mechanism comprises a double-shaft motor which is fixedly arranged at the inner bottom of the protective box, the power output ends of the double-shaft motors are respectively connected with a rotating shaft through a coupling in a transmission way, one ends of the two rotating shafts far away from the double-shaft motors are respectively and fixedly connected with a conical driving wheel, a balance can be placed in a protective box through the protective box, thereby avoided the balance to expose and to have leaded to when carrying phenomenons such as collision damage, the inside elevating system's of protective housing setting is convenient for the balance to put into the protective housing inside simultaneously, or shifts out from the protective housing is inside, has improved convenience and practicality when the balance uses then.

Description

Balance for physical teaching

Technical Field

The utility model belongs to the technical field of physical teaching aids, and particularly relates to a balance for physical teaching.

Background

A balance, also known as a balance, is an instrument which utilizes the gravity acting on an object to measure the mass of the object or determine other quantity values, parameters or characteristics as a mass function by a balance principle, a balance beam is supported at the center of the beam by a supporting point to form two arms, each arm is hung with a disk, one disk is used for placing the object with known mass, the other disk is used for placing the object to be measured, the deflection of a pointer fixed on the beam when the pointer does not swing and points to a center scale indicates the mass of the object to be measured, analytical balances, physical balances, student balances, tray balances and the like are commonly used, and physical balances, student balances and tray balances are commonly used in a middle school physics laboratory.

When the existing balance is used, a user generally directly carries the balance, so that the balance is easy to collide and the like in the process of moving the balance, the balance is damaged, the exposed arrangement of the balance is easy to corrode by external dust and water vapor, the service life of the balance is shortened, and the precision of the balance is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a balance for physics teaching, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a balance for physical teaching, which comprises a balance main body and a protective box, wherein the lower end of the balance main body is fixedly connected with a balance support, the balance support is arranged above the protective box, a lifting mechanism is arranged in the protective box, the lifting mechanism comprises a double-shaft motor which is fixedly arranged at the inner bottom of the protective box, the power take off end of biax motor all is connected with the pivot through the shaft coupling transmission, two the equal fixedly connected with toper action wheel of one end that biax motor was kept away from in the pivot, two the toper action wheel all is connected with the threaded rod, two from the driving wheel transmission through the toper the equal threaded connection in surface of threaded rod has the elevator, two the equal fixedly connected with connecting rod in upper end of elevator, two connecting rod upper end fixedly connected with movable plate, the balance support passes through the upper surface of fixed establishment fixed mounting at the movable plate.

Preferably, the fixing mechanism comprises fixing rods, the fixing rods are symmetrically arranged in the front and back direction, the fixing rods are fixedly arranged at the front end and the back end of the upper surface of the movable plate respectively, a baffle is fixedly connected to the upper ends of the fixing rods, a limiting block is rotatably connected to the upper end surface of each fixing rod, one side, close to the balance main body, of the limiting block is inserted into the upper end of the balance support, a compression spring is sleeved on the upper end surface of each fixing rod, the upper ends of the compression springs respectively abut against the lower surfaces of the two baffles, and the lower ends of the compression springs respectively abut against the upper surfaces of the two limiting blocks.

Preferably, the inner walls of the front end and the rear end of the protective box are provided with moving grooves, two sliding blocks and two supporting rods are arranged in the moving grooves in a sliding mode, the upper surfaces of the sliding blocks are fixedly connected with the supporting rods, and the upper ends of the supporting rods are fixedly connected with the lower surfaces of the front end and the rear end of the moving plate respectively.

Preferably, the inside fixed mounting of guard box has the storage box, and the storage box setting is in the top of biax motor.

Preferably, the front of the protective box is hinged with a box door through a hinge shaft, the front of the box door is provided with an embedded handle, the box door is arranged right in front of the storage box, and the rear side of the upper end of the box door is hinged with a top cover through a hinge shaft.

Preferably, the inside fixed mounting of guard box has the bearing, the threaded rod passes through the bearing and is connected with the inside rotation of guard box.

Preferably, the equal fixed mounting of the left and right sides inner wall of guard box has the limiting plate, and the limiting plate setting is in the toper from the top of driving wheel.

Compared with the prior art, the utility model has the beneficial effects that:

(1) this balance for physical teaching, protective housing through setting up, can place the balance inside the protective housing, thereby avoided the balance to expose and to have leaded to phenomenons such as collision damage when carrying outward, through the inside elevating system's of protective housing setting, be convenient for the balance to put into the protective housing inside, or shift out from the protective housing is inside, convenience and practicality when having improved the balance use then, the balance is placed inside the protective housing simultaneously, dust in the air has been reduced, steam etc. causes the corrosion effect to the balance, then the life and the result of use of balance have been improved.

(2) This balance for physical teaching through the fixed establishment who sets up, can fix the balance on elevating system to improve the stability of balance, improved the stability of balance when follow-up protective housing carries inside the protective housing then, avoided removing in-process balance and taken place to rock the phenomenon in the protective housing inside, thereby improved holistic practicality.

Drawings

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

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a right sectional view of the present invention;

fig. 4 is an enlarged view of the structure at a in fig. 3 according to the present invention.

In the figure: 1. a balance body; 2. a protective box; 3. a balance support; 4. a lifting mechanism; 401. a double-shaft motor; 402. a rotating shaft; 403. a conical driving wheel; 404. a conical driven wheel; 405. a threaded rod; 406. a lifting block; 407. a connecting rod; 408. moving the plate; 5. a fixing mechanism; 501. fixing the rod; 502. a baffle plate; 503. a limiting block; 504. a compression spring; 6. a moving groove; 7. a slider; 8. a support bar; 9. a storage box; 10. and (4) a box door.

Detailed Description

Referring to fig. 1-4, the utility model provides a balance for physical teaching, which comprises a balance main body 1 and a protective box 2, wherein the lower end of the balance main body 1 is fixedly connected with a balance support 3, the balance support 3 is arranged above the protective box 2, a lifting mechanism 4 is arranged inside the protective box 2, the lifting mechanism 4 comprises a double-shaft motor 401, the double-shaft motor 401 is fixedly arranged at the inner bottom of the protective box 2, the power output ends of the double-shaft motor 401 are respectively connected with a rotating shaft 402 through a coupling in a transmission manner, one ends of the two rotating shafts 402 far away from the double-shaft motor 401 are respectively and fixedly connected with a conical driving wheel 403, the two conical driving wheels 403 are respectively and rotatably connected with a threaded rod 405 through a conical driven wheel 404, the surfaces of the two threaded rods 405 are respectively and threadedly connected with lifting blocks 406, the upper ends of the two lifting blocks 406 are respectively and fixedly connected with a connecting rod 407, and the upper ends of the two connecting rods 407 are respectively and fixedly connected with a movable plate 408, the balance holder 3 is fixedly mounted on the upper surface of the moving plate 408 by a fixing mechanism 5.

In this embodiment, preferably, the fixing mechanism 5 includes two fixing rods 501, the two fixing rods 501 are symmetrically arranged in front and back, the two fixing rods 501 are respectively and fixedly installed at the front and back ends of the upper surface of the moving plate 408, the upper ends of the two fixing rods 501 are both fixedly connected with the baffle 502, the upper end surfaces of the two fixing rods 501 are both rotatably connected with the limiting blocks 503, one sides of the two limiting blocks 503 close to the balance main body 1 are both inserted into the upper end of the balance support 3, the upper end surfaces of the two fixing rods 501 are both sleeved with the compression springs 504, the upper ends of the two compression springs 504 are respectively abutted against the lower surfaces of the two baffles 502, the lower ends of the two compression springs 504 are respectively abutted against the upper surfaces of the two limiting blocks 503, the arrangement of the structure can fix the balance support 3 on the moving plate 408, and then fix the balance main body 1 on the moving plate 408, so that the moving plate 408 can drive the balance main body 1 to vertically move, when the balance body 1 needs to be removed from the moving plate 408, the limit block 503 is moved upward and then rotated ninety degrees, so that the limit block 503 is no longer in contact with the balance holder 3, and then the limit block 503 loses the fixing effect on the balance holder 3, and the balance holder 3 and the balance body 1 can be removed from the moving plate 408.

In this embodiment, it is preferred, moving slot 6 has all been seted up to both ends inner wall around protective housing 2, the equal slidable mounting in inside of two moving slot 6 has slider 7, the equal fixedly connected with bracing piece 8 of upper surface of two slider 7, the upper end of two bracing pieces 8 respectively with the front and back both ends fixed surface connection of movable plate 408, moving slot 6's setting, the removal space has been provided for slider 7, be convenient for then slider 7 can be the vertical migration smoothly, slider 7 and bracing piece 8's setting, can prescribe a limit to the position of movable plate 408, then when movable plate 408 vertical migration, can remove more stably, avoid movable plate 408 to take place to rock and influence the result of use.

In this embodiment, preferably, the inside fixed mounting of guard box 2 has storage box 9, and storage box 9 sets up in the top of biax motor 401, and storage box 9's setting can place physics teaching article such as weight inside storage box 9, subsequent use of being convenient for then.

In this embodiment, it is preferred, the front of protective box 2 articulates through the hinge has chamber door 10, and the front of chamber door 10 installs embedded handle, chamber door 10 sets up in storage box 9 dead ahead, the upper end rear side of chamber door 10 articulates through the hinge has the top cap, the setting of chamber door 10 and embedded handle, the staff of being convenient for opens chamber door 10, the staff of being convenient for then takes out the inside article of storage box 9, or put into storage box 9 with article inside, the setting of top cap can seal the upper end of protective box 2, then protect the inside article of protective box 2.

In this embodiment, preferably, the inside fixed mounting of guard box 2 has the bearing, and threaded rod 405 passes through the bearing to be connected with the internal rotation of guard box 2, and the setting of bearing can play spacing fixed effect to threaded rod 405, and because the characteristic of bearing self for threaded rod 405 rotates more smoothly, avoids threaded rod 405 to take place to block and affects the result of use.

In this embodiment, preferably, the equal fixed mounting of the left and right sides inner wall of guard box 2 has the limiting plate, and the limiting plate setting is in the toper from the top of driving wheel 404, and the setting of limiting plate has injectd elevator 406 lowest position, and bump from driving wheel 404 with the toper when having avoided elevator 406 downstream to the practicality of elevator 406 has been improved.

The working principle and the using process of the utility model are as follows: when the device is used, the ejector rod at the upper end is firstly opened, then the double-shaft motor 401 is started, the double-shaft motor 401 drives the two rotating shafts 402 and the conical driving wheel 403 to rotate, thereby driving the two conical driven wheels 404 and the threaded rod 405 to rotate, and then the lifting block 406 drives the connecting rod 407 and the moving plate 408 to move upwards, so that the fixing mechanism 5, the balance support 3 and the balance body 1 on the moving plate 408 move upwards to the upper end of the protective box 2, and then the balance body 1 can be used, when the balance body 1 needs to be removed from the moving plate 408, the stopper 503 is moved upward, then rotates ninety degrees, so that the limit block 503 is no longer contacted with the balance support 3, and then the limit block 503 loses the fixing effect on the balance support 3, further, the balance holder 3 and the balance main body 1 can be removed from the moving plate 408, and the practicability of the balance in use is improved.

Claims

1. The utility model provides a balance for physical teaching, includes balance main part (1) and guard box (2), its characterized in that: the lower end of the balance main body (1) is fixedly connected with a balance support (3), the balance support (3) is arranged above the protective box (2), an elevating mechanism (4) is arranged in the protective box (2), the elevating mechanism (4) comprises a double-shaft motor (401), the double-shaft motor (401) is fixedly arranged at the inner bottom of the protective box (2), the power output ends of the double-shaft motor (401) are respectively connected with a rotating shaft (402) through a shaft coupling in a transmission manner, one ends of the two rotating shafts (402) far away from the double-shaft motor (401) are respectively and fixedly connected with a conical driving wheel (403), the two conical driving wheels (403) are respectively and rotatably connected with a threaded rod (405) through a conical driven wheel (404), the surfaces of the two threaded rods (405) are respectively and fixedly connected with an elevating block (406) through threads, and the upper ends of the two elevating blocks (406) are respectively and fixedly connected with a connecting rod (407), two connecting rods (407) upper end fixedly connected with movable plate (408), balance support (3) are through fixed establishment (5) fixed mounting at the upper surface of movable plate (408).

2. The balance for physical teaching according to claim 1, wherein: the fixing mechanism (5) comprises fixing rods (501), the front and back of the fixing rods (501) are symmetrically provided with two fixing rods (501), the two fixing rods (501) are respectively fixedly installed at the front end and the back end of the upper surface of the movable plate (408), the two fixing rods (501) are fixedly connected with baffle plates (502) at the upper ends, the two fixing rods (501) are respectively rotatably connected with limiting blocks (503), the two limiting blocks (503) are respectively inserted into one side, close to the balance main body (1), of the upper end of the balance support (3), the two fixing rods (501) are respectively sleeved with compression springs (504), the two compression springs (504) are respectively abutted to the upper ends of the two baffle plates (502), and the two compression springs (504) are respectively abutted to the upper surfaces of the two limiting blocks (503).

3. The balance for physical teaching according to claim 1, wherein: moving bath (6), two have all been seted up to the both ends inner wall around protective housing (2) the equal slidable mounting in inside of moving bath (6) has slider (7), two the equal fixedly connected with bracing piece (8) of upper surface of slider (7), two the upper end of bracing piece (8) respectively with the front and back both ends lower fixed surface connection of movable plate (408).

4. The balance for physical teaching according to claim 2, wherein: the inside fixed mounting of guard box (2) has storage box (9), and storage box (9) set up the top at biax motor (401).

5. The balance for physical teaching according to claim 4, wherein: the front of protective box (2) is articulated through the hinge to have chamber door (10), and the front of chamber door (10) installs embedded handle, chamber door (10) set up in the dead ahead of storage box (9), the upper end rear side of chamber door (10) is articulated through the hinge to have the top cap.

6. The balance for physical teaching according to claim 1, wherein: the inside fixed mounting of guard box (2) has the bearing, threaded rod (405) are connected through the inside rotation of bearing and guard box (2).

7. The balance for physical teaching according to claim 1, wherein: the inner walls of the left side and the right side of the protection box (2) are fixedly provided with limiting plates, and the limiting plates are arranged above the conical driven wheel (404).