CN210743358U

CN210743358U - Magnifying glass focal length measuring equipment for physics teaching

Info

Publication number: CN210743358U
Application number: CN201921951322.9U
Authority: CN
Inventors: 马萱萱
Original assignee: Xuzhou Mechanical And Electrical Technician College
Current assignee: Xuzhou Mechanical And Electrical Technician College
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-06-12
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses a magnifying glass focus measuring equipment for physical teaching, comprising a base plate, the top of bottom plate is fixed with one side and has open first fixing base, the inside slidable mounting of first fixing base has the lifter plate, first lead screw is installed in the inside rotation of first fixing base, and just first lead screw runs through the lifter plate through the screw thread, curved recess has been seted up at the top of lifter plate, install the flashlight through the clamping piece in the recess, the fixed coupling of port of flashlight has the light pipe, clamping device is installed at the top of bottom plate, clamping device includes first fixture block, first guide pillar, second fixture block, the top of first fixture block and the bottom of second fixture block are curved notch, the top at the bottom plate is fixed to first fixture block. The utility model discloses the operation is very simple, has improved the ability of student's hands-on.

Description

Magnifying glass focal length measuring equipment for physics teaching

Technical Field

The utility model relates to a physical teaching technical field especially relates to magnifying glass focus measuring equipment for physical teaching.

Background

A convex lens is the simplest magnifying lens, a simple optical instrument that helps the eye to view tiny objects or details. In the teaching of physics, students are generally directly informed of the focal length of a specified magnifier, and no existing simple device is used for measurement, so that the practical ability of the students is limited, and the magnifier focal length measuring device for physics teaching is provided for solving the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the magnifying glass focus measuring equipment for physical teaching who proposes.

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

the magnifier focal length measuring device for physical teaching comprises a bottom plate, wherein a first fixed seat with an opening on one side is fixed at the top of the bottom plate, a lifting plate is slidably installed inside the first fixed seat, a first lead screw is rotatably installed inside the first fixed seat and penetrates through the lifting plate through threads, an arc-shaped groove is formed in the top of the lifting plate, a flashlight is installed in the groove through a clamping piece, a light guide pipe is fixedly sleeved at the port of the flashlight, a clamping device is installed at the top of the bottom plate and comprises a first clamping block, a first guide pillar and a second clamping block, the top of the first clamping block and the bottom of the second clamping block are both arc-shaped notches, the first clamping block is fixed at the top of the bottom plate, the first guide pillar is fixed at both ends of the top of the first clamping block, and the two first guide pillars slidably penetrate through the second clamping block, the clamping fixture is characterized in that the second clamping block and the first clamping block are locked through a nut, a second fixing seat is fixed to the top of the bottom plate, a second lead screw is rotatably connected between the first clamping block and the second fixing seat, a moving seat is sleeved on the second lead screw through threads, a second guide pillar is fixedly connected between the first clamping block and the second fixing seat and penetrates through the moving seat in a sliding mode, a blackwood board is fixed to the top of the moving seat, and scale strips are arranged on the side edges of the bottom plate.

Preferably, the clamping piece includes arc piece and supporting leg, and the four corners of arc piece all is fixed with the supporting leg, and the supporting leg runs through the lifter plate and locks through the nut.

Preferably, the second screw rod is parallel to the blackwood plate, and the blackwood plate is perpendicular to the bottom plate.

Preferably, the first screw rod is perpendicular to the bottom plate, and the lifting plate is parallel to the bottom plate.

Preferably, the first guide pillar is perpendicular to the bottom plate.

Preferably, hand wheels are mounted at one ends of the first screw rod and the second screw rod.

Preferably, a triangular mark groove is formed in the side edge of the movable seat, and a through hole is formed in the top of the second clamping block.

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

in the utility model, the magnifier is placed on the top of the first fixture block, then the handle of the magnifier passes through the through hole on the top of the second fixture block, and then the magnifier is locked between the first fixture block and the second fixture block through the nut; rotate first lead screw, the height of adjustable lifter plate, thereby adjust the center of magnifying glass with light, the light pipe that the look was hated and cured has the effect that the good light beam for the experiment of direction formation, the light beam forms the circular shape patch after passing through the lens of magnifying glass on the blackwood board, rotate the second lead screw, the second lead screw drives and removes the seat motion, thereby adjust the distance between blackwood board and the magnifying glass, form a minimum light spot on up to the blackwood board, thereby compare the focus that the scale strip can obtain this magnifying glass again through the mark groove that sets up on removing the seat, therefore, the operation is very simple, the ability of student's hands-on has been improved.

Drawings

Fig. 1 is a schematic structural view of a magnifier focal length measuring device for physics teaching according to the present invention;

fig. 2 is a schematic structural view of a clamping device of the magnifier focal length measuring device for physics teaching according to the present invention;

fig. 3 is a schematic structural diagram of the magnifier used for the experiment of the utility model.

In the figure: the device comprises a base plate 1, a scale bar 2, a clamping device 3, a first clamping block 31, a first guide post 32, a second clamping block 33, a first fixed seat 4, a lifting plate 5, a first lead screw 6, a clamping piece 7, a flashlight 8, a light guide pipe 9, a blackwood plate 10, a movable seat 11, a second guide post 12, a second lead screw 13 and a second fixed seat 14.

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.

Referring to fig. 1-3, a magnifier focal length measuring device for physical teaching comprises a bottom plate 1, a first fixing seat 4 with an opening on one side is fixed on the top of the bottom plate 1, a lifting plate 5 is slidably installed inside the first fixing seat 4, a first lead screw 6 is rotatably installed inside the first fixing seat 4, the first lead screw 6 penetrates through the lifting plate 5 through a thread, an arc-shaped groove is formed in the top of the lifting plate 5, a flashlight 8 is installed in the groove through a clamping member 7, a light pipe 9 is fixedly sleeved on a port of the flashlight 8, a clamping device 3 is installed on the top of the bottom plate 1, the clamping device 3 comprises a first clamping block 31, a first guide pillar 32 and a second clamping block 33, the top of the first clamping block 31 and the bottom of the second clamping block 33 are arc-shaped notches, the first clamping block 31 is fixed on the top of the bottom plate 1, and first guide pillars 32 are fixed on both ends, two first guide pillars 32 slide and run through second fixture block 33, lock through the nut between second fixture block 33 and the first fixture block 31, the top of bottom plate 1 is fixed with second fixing base 14, it is connected with second lead screw 13 to rotate between first fixture block 31 and the second fixing base 14, it moves seat 11 to have cup jointed through the screw thread on the second lead screw 13, fixedly connected with second guide pillar 12 between first fixture block 31 and the second fixing base 14, and second guide pillar 12 slides and runs through and moves seat 11, the top of moving seat 11 is fixed with black wood board 10, the side of bottom plate 1 is provided with scale bar 2.

Wherein, clamping piece 7 includes arc piece and supporting leg, and the four corners of arc piece all is fixed with the supporting leg, and the supporting leg runs through lifter plate 5 and locks through the nut.

The second screw 13 is parallel to the blackwood board 10, and the blackwood board 10 is perpendicular to the bottom board 1.

Wherein, the first screw rod 6 is vertical to the bottom plate 1, and the lifting plate 5 is parallel to the bottom plate 1.

Wherein, the first guide pillar 32 is perpendicular to the bottom plate 1.

Wherein, hand wheels are arranged at one ends of the first screw rod 6 and the second screw rod 13.

Wherein, a triangular mark groove is arranged on the side of the movable seat 11, and a through hole is arranged on the top of the second block 33.

The working principle is as follows: when the magnifier is used, the magnifier is placed at the top of the first clamping block 31, the handle of the magnifier penetrates through the through hole at the top of the second clamping block 33, and the magnifier is locked between the first clamping block 31 and the second clamping block 33 through the nut; rotate first lead screw 6, the height of adjustable lifter plate 5, thereby adjust the center of magnifying glass with light, the light pipe 9 that the look was hated and controlled has the effect that the good light beam for the experiment of direction formation, the light beam forms circular shape plaque on blackwood board 10 after passing through the lens of magnifying glass, rotate second lead screw 13, second lead screw 13 drives and removes the motion of seat 11, thereby adjust the distance between blackwood board 10 and the magnifying glass, form a minimum light spot on the blackwood board 10 up to, thereby compare scale strip 2 and can obtain the focus of this magnifying glass again through the mark groove that sets up on removing seat 11, the operation is very simple, the ability of student's hands-on has been improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The magnifier focal length measuring device for physical teaching comprises a bottom plate (1) and is characterized in that a first fixed seat (4) with an opening on one side is fixed at the top of the bottom plate (1), a lifting plate (5) is slidably mounted inside the first fixed seat (4), a first lead screw (6) is rotatably mounted inside the first fixed seat (4), the first lead screw (6) penetrates through the lifting plate (5) through threads, an arc-shaped groove is formed in the top of the lifting plate (5), a flashlight (8) is mounted in the groove through a clamping piece (7), a light guide pipe (9) is fixedly sleeved at a port of the flashlight (8), a clamping device (3) is mounted at the top of the bottom plate (1), the clamping device (3) comprises a first clamping block (31), a first guide pillar (32) and a second clamping block (33), and the top of the first clamping block (31) and the bottom of the second clamping block (33) are arc-shaped notches, the first fixture block (31) is fixed on the top of the bottom plate (1), first guide posts (32) are fixed at both ends of the top of the first fixture block (31), the two first guide posts (32) penetrate through the second fixture block (33) in a sliding manner, the second clamping block (33) and the first clamping block (31) are locked by a nut, a second fixed seat (14) is fixed at the top of the bottom plate (1), a second screw rod (13) is rotatably connected between the first clamping block (31) and the second fixed seat (14), the second screw rod (13) is sleeved with a movable seat (11) through threads, a second guide post (12) is fixedly connected between the first clamping block (31) and the second fixed seat (14), and the second guide post (12) penetrates through the moving seat (11) in a sliding manner, a blackwood board (10) is fixed at the top of the moving seat (11), and scale strips (2) are arranged on the side edges of the bottom plate (1).

2. The magnifier focal length measuring device for physics teaching of claim 1, wherein the clamping piece (7) comprises an arc-shaped piece and supporting legs, the supporting legs are fixed at four corners of the arc-shaped piece, and the supporting legs penetrate through the lifting plate (5) and are locked by nuts.

3. The magnifier focal length measuring device for physics teaching according to claim 1, wherein the second lead screw (13) is parallel to the blackwood plate (10), and the blackwood plate (10) is perpendicular to the base plate (1).

4. The magnifier focal length measuring device for physics teaching according to claim 1, wherein the first lead screw (6) is perpendicular to the bottom plate (1), and the lifting plate (5) is parallel to the bottom plate (1).

5. The magnifier focal length measuring apparatus for physics teaching according to claim 1, wherein the first guide post (32) is perpendicular to the base plate (1).

6. The magnifier focal length measuring device for physics teaching of claim 1, wherein a hand wheel is installed at one end of each of the first screw rod (6) and the second screw rod (13).

7. The magnifier focal length measuring device for physics teaching of claim 1, wherein the side of the moving base (11) is provided with a triangular mark groove, and the top of the second fixture block (33) is provided with a through hole.