CN210639824U

CN210639824U - Hooke's law presentation device for physics teaching

Info

Publication number: CN210639824U
Application number: CN201920906359.3U
Authority: CN
Inventors: 孙俊琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-05-29
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a hooke's law presentation device for physical teaching, including base and fixed mounting in the curb plate and the bracing piece at base top both ends, the equal fixed mounting in top outer wall of curb plate and bracing piece has same roof, and the top one end fixed mounting of roof has the mounting bracket, one side fixed mounting of mounting bracket has the couple, and the couple has been articulated to have the spring, the rigidity rope has been articulated to the bottom of spring, the relative one side of base and roof is close to the one end fixed mounting of bracing piece has same mounting panel, and one side of mounting panel is rotated through the bearing and is connected with the wire wheel, the rigidity rope articulates the tensiometer that has the level to set up through the wire wheel, and tensiometer fixedly connected with pulling mechanism. The utility model discloses can utilize and rotate the rocker and pass through the threaded rod and drive a screw thread section of thick bamboo and remove, and then replace artifical manual pulling tensiometer, its precision and stability can all have great improvement, are favorable to going on of teaching demonstration.

Description

Hooke's law presentation device for physics teaching

Technical Field

The utility model relates to a physical teaching technical field especially relates to a hooke's law presentation device for physical teaching.

Background

Hooke's law, once translated into Hooke's law, is a basic law in the theory of mechanical elasticity, and specifically, after a solid material is stressed, a linear relationship exists between stress and strain in the material. Materials that satisfy hooke's law are known as thread elastic or hooke's type materials. Hooke's law is one of physical teaching contents in junior high school, and in order to better understand the law, a demonstration device is required to be frequently used.

For example, the utility model with chinese patent application No. CN201720421468.7 relates to a hooke's law demonstration device, which can demonstrate hooke's law and simultaneously show the linear relationship between stress and strain. The utility model provides a hooke's law presentation device, includes the mounting panel, sets up tensiometer, extension spring, scale and draws the district on the mounting panel, and the tensiometer passes through the string with the extension spring to be connected, and extension spring one end is fixed with the mounting panel. However, in the using process of the above patent, a demonstrator needs to manually pull the tension meter, and the hand of a person easily shakes, so that the tension is unstable, the data reading is inaccurate, and the demonstration effect is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hooke's law demonstration device for physical teaching.

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

the utility model provides a hooke's law presentation device for physical teaching, includes base and fixed mounting in the curb plate and the bracing piece at base top both ends, the equal fixed mounting in the top outer wall of curb plate and bracing piece has same roof, and the top one end fixed mounting of roof has the mounting bracket, one side fixed mounting of mounting bracket has the couple, and the couple has been articulated to have the spring, the rigidity rope has been articulated to the bottom of spring, the base has same mounting panel with the relative one side of roof near the one end fixed mounting of bracing piece, and one side of mounting panel rotates through the bearing and is connected with the wire wheel, the rigidity rope articulates the tensiometer that has the level to set up through the wire wheel, and tensiometer fixedly connected with pulling mechanism, pulling mechanism is including rocker, threaded rod, thread section of thick bamboo and.

Further, the bottom outer wall one side fixed mounting of roof has the transparent plate, and the threaded rod all rotates with curb plate and transparent plate to be connected, and rocker fixed mounting is in the one end of threaded rod.

Furthermore, the threaded cylinder is in threaded connection with the threaded rod, and the sliding rod is fixedly installed at the bottom end of the threaded cylinder.

Furthermore, one side of the slide bar is fixedly connected with the tension meter, and the top end of the base is provided with a C-shaped slide rail which is in sliding connection with the bottom end of the slide bar.

Furthermore, one side of the rigid rope close to the spring is fixedly provided with a pointer, and one side of the mounting plate is fixedly provided with a graduated scale.

Furthermore, the supporting rod is provided with a cavity, and a magnifying lens is connected in the cavity in a sliding mode.

Furthermore, one side of the supporting rod is provided with a sliding groove communicated with the cavity, and the lens rod of the magnifier is connected with a locking knob matched with the sliding groove through threads.

Compared with the prior art, the utility model provides a hooke's law presentation device for physical teaching possesses following beneficial effect:

1. this hooke's law presentation device for physical teaching through the pulling mechanism that sets up, can utilize to rotate the rocker and pass through the threaded rod and drive a screw thread section of thick bamboo and remove, and then replace artifical manual pulling tensiometer, its precision and stability can all have great improvement, are favorable to the going on of teaching demonstration.

2. This hooke's law presentation device for physical teaching, the magnifying glass cooperation pointer's that through the setting, more be favorable to reading the change of spring length, and then effectively improve the device's practicality, through the spout and the locking knob that set up, be convenient for fix, remove the magnifying glass, more be favorable to reading of data.

3. This hooke's law presentation device for physical teaching through the slide bar and the C type slide rail that set up, has the advantage that improves stability when pulling the mechanism pulling.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses convenient operation has good demonstration effect.

Drawings

Fig. 1 is a schematic view of the overall structure of a hooke's law demonstration device for physics teaching according to the present invention;

fig. 2 is a schematic view of a three-dimensional structure of a thread cylinder of the hooke's law demonstration device for physics teaching provided by the utility model;

fig. 3 is the utility model provides a department's enlarged structure schematic diagram in fig. 1 of hooke's law presentation device for physical teaching.

In the figure: the device comprises a base 1, a tension meter 2, a sliding rod 3, a C-shaped sliding rail 4, a side plate 5, a rocker 6, a threaded rod 7, a threaded barrel 8, a top plate 9, a spring 10, a hook 11, a mounting rack 12, a sliding chute 13, a transparent plate 14, a graduated scale 15, a supporting rod 16, a mounting plate 17, a wire guide wheel 18, a rigid rope 19, a pointer 20, a magnifier 21 and a locking knob 22.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-2, a hooke's law demonstration device for physics teaching comprises a base 1, a side plate 5 and a support rod 16 fixed at two ends of the top of the base 1 through bolts, a same top plate 9 fixed on the outer walls of the tops of the side plate 5 and the support rod 16 through bolts, and one end of the top plate 9 is fixed with a mounting rack 12 through a bolt, one side of the mounting rack 12 is welded with a hook 11, a spring 10 is hung on the hook 11, a rigid rope 19 is hung at the bottom end of the spring 10, one end of the base 1, which is opposite to the top plate 9 and is close to the supporting rod 16, is fixed with a same mounting plate 17 through a bolt, and one side of the mounting plate 17 is rotatably connected with a wire guide wheel 18 through a bearing, a rigid rope 19 is hung with the tension meter 2 which is horizontally arranged through the wire guide wheel 18, and the tension meter 2 is fixedly connected with a pulling mechanism which comprises a rocker 6, a threaded rod 7, a threaded cylinder 8 and a sliding rod 3.

The utility model discloses in, the welding of bottom outer wall one side of roof 9 has transparent plate 14, and threaded rod 7 all rotates with curb plate 5 and transparent plate 14 to be connected, and rocker 6 welds in the one end of threaded rod 7.

Wherein, the threaded cylinder 8 is in threaded connection with the threaded rod 7, and the sliding rod 3 is welded at the bottom end of the threaded cylinder 8.

Wherein, one side of the slide bar 3 is fixedly connected with the tension meter 2, and the top end of the base 1 is provided with a C-shaped slide rail 4 which is slidably connected with the bottom end of the slide bar 3.

Example 2

Referring to fig. 1 and 3, the hooke's law demonstration device for physics teaching further includes, in this embodiment, a pointer 20 adhered to a side of the rigid rope 19 close to the spring 10, and a graduated scale 15 fixed to a side of the mounting plate 17 by a screw, compared to embodiment 1.

Wherein, the support bar 16 is provided with a cavity, and a magnifying glass 21 is connected in the cavity in a sliding way.

Wherein, one side of the supporting rod 16 is provided with a chute 13 communicated with the cavity, and the mirror rod of the magnifier 21 is connected with a locking knob 22 matched with the chute 13 through screw threads.

The working principle is as follows: when the tension meter is used, the rocker 6 is manually rotated to drive the threaded rod 7 to rotate, the threaded cylinder 8 is driven to move through the threaded rod 7 in a matching manner with the slide rod 3, the tension meter 2 is pulled only by a manual mode, and the C-shaped slide rail 4 is utilized, so that the pulling stability of the pulling mechanism is improved; stopping rotating the rocker 6, after the tensiometer 2 data is stable, reading and recording the tension numerical value, reading and recording the position pointed by the current pointer 20 through the pointer 20 and the graduated scale 15 in cooperation with the magnifier 21, further greatly improving the precision and stability of the pointer, continuing to rotate the rocker 6, repeating the steps, and demonstrating.

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 utility model provides a hooke's law presentation device for physical teaching, includes base (1) and fixed mounting in curb plate (5) and bracing piece (16) at base (1) top both ends, its characterized in that, the equal fixed mounting in top outer wall of curb plate (5) and bracing piece (16) has same roof (9), and the top one end fixed mounting of roof (9) has mounting bracket (12), one side fixed mounting of mounting bracket (12) has couple (11), and couple (11) have been articulated spring (10), the bottom of spring (10) has been articulated rigidity rope (19), the relative one side of base (1) and roof (9) is close to the one end fixed mounting of bracing piece (16) has same mounting panel (17), and one side of mounting panel (17) is connected with wire wheel (18) through the bearing rotation, rigidity rope (19) articulate tensiometer (2) that have the level to set up through wire wheel (18), and the tension meter (2) is fixedly connected with a pulling mechanism which comprises a rocker (6), a threaded rod (7), a threaded cylinder (8) and a sliding rod (3).

2. The hooke's law demonstration device for physics teaching of claim 1, wherein a transparent plate (14) is fixedly installed on one side of the bottom outer wall of the top plate (9), the threaded rod (7) is rotatably connected with the side plate (5) and the transparent plate (14), and the rocker (6) is fixedly installed at one end of the threaded rod (7).

3. The hooke's law demonstration device for physics teaching of claim 2, wherein the threaded cylinder (8) is in threaded connection with the threaded rod (7), and the slide bar (3) is fixedly mounted at the bottom end of the threaded cylinder (8).

4. The hooke's law demonstration device for physics teaching according to claim 1, wherein one side of the slide bar (3) is fixedly connected with the tension meter (2), and the top end of the base (1) is provided with a C-shaped slide rail (4) which is slidably connected with the bottom end of the slide bar (3).

5. Hooke's law demonstration device for physics teaching according to claim 1, characterized in that a pointer (20) is fixedly mounted on one side of the rigid rope (19) close to the spring (10) and a graduated scale (15) is fixedly mounted on one side of the mounting plate (17).

6. Hooke's law demonstration device for physics teaching according to claim 1 characterized in that the supporting rod (16) is provided with a cavity and a magnifying glass (21) is slidably connected in the cavity.

7. The hooke's law demonstration device for physics teaching according to claim 6, wherein one side of the supporting rod (16) is provided with a sliding groove (13) communicated with the cavity, and the mirror rod of the magnifying lens (21) is connected with a locking knob (22) matched with the sliding groove (13) through threads.