CN216623553U - Demonstration frame for physical teaching - Google Patents
Demonstration frame for physical teaching Download PDFInfo
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- CN216623553U CN216623553U CN202121050827.5U CN202121050827U CN216623553U CN 216623553 U CN216623553 U CN 216623553U CN 202121050827 U CN202121050827 U CN 202121050827U CN 216623553 U CN216623553 U CN 216623553U
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- locking mechanism
- cross bar
- fixedly connected
- pivot
- rotating mechanism
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Abstract
The utility model relates to the field of physical teaching, in particular to a demonstration frame for physical teaching, which comprises a base, two groups of support rods, a cross bar, a rotating mechanism, ropes, a pendulum bob and a locking mechanism, wherein the two groups of support rods are symmetrically arranged and fixedly connected to the upper end of the base, the cross bar is transversely arranged right above the base, the top ends of the two groups of support rods are respectively and fixedly connected with the lower end of the cross bar, the rotating mechanism is arranged at the middle end of the cross bar, the ropes are detachably connected to the lower end of the rotating mechanism, the lower end of each rope is fixedly connected with the middle end of the pendulum bob, the locking mechanism is arranged on one side of the rotating mechanism and is rotatably connected with the cross bar, and the demonstration frame for physical teaching has functions of demonstrating the motion principle of the pendulum bob and the like.
Description
Technical Field
The utility model relates to the field of physical teaching, in particular to a demonstration rack for physical teaching.
Background
The pendulum is an experimental instrument and can be used for showing various mechanical phenomena. The most basic pendulum consists of a rope or a rod and a hammer, wherein the hammer is tied below the rope, the other end of the rope is fixed, when the pendulum is pushed, the hammer moves back and forth, the pendulum can be used as a timer, and a physical teaching demonstration frame is provided for showing the influence of the angle change of the top end of the rope on the back and forth movement of the pendulum and the amplitude change of the back and forth swing of the pendulum.
SUMMERY OF THE UTILITY MODEL
(I) technical problem to be solved
In order to overcome the defects of the prior art, the demonstration frame for physical teaching is provided, the base is used for stabilizing the bottom of the whole demonstration frame, the support rods are used for supporting a cross bar at the top end of the demonstration frame and are used as connecting parts between the base and the cross bar, the cross bar is used for providing a fixed point for the rotating mechanism, and the space between the cross bar and the base is used for providing a space for swinging of the rope and the pendulum bob, the rotating mechanism, the rope and the pendulum bob are sequentially connected, the locking mechanism can be used for fixing or adjusting the steering angle of the rotating mechanism so as to provide the law of swinging of the pendulum bob under different angles, two groups of support rods which are symmetrically arranged are fixedly connected at the upper end of the base, the cross bar is transversely arranged right above the base, the top ends of the two groups of support rods are respectively and fixedly connected with the lower end of the cross bar, the rotating mechanism is arranged at the middle end of the cross bar, and the lower end of the rotating mechanism is detachably connected with the rope, rope lower extreme and pendulum middle-end fixed connection, rotary mechanism one side is provided with locking mechanism, and locking mechanism rotates with the whippletree and is connected, through adjusting locking mechanism to rotary mechanism's locking degree and swinging the pendulum again and demonstrate the turned angle at rope top to the influence of pendulum motion.
(II) technical scheme
The utility model is realized by the following technical scheme: the utility model provides a demonstration frame for physical teaching, which comprises a base, supporting rods, a cross bar, a rotating mechanism, ropes, a pendulum bob and a locking mechanism, wherein the upper end of the base is fixedly connected with two groups of the supporting rods which are symmetrically arranged, the cross bar is transversely arranged right above the base, the top ends of the two groups of the supporting rods are respectively and fixedly connected with the lower end of the cross bar, the rotating mechanism is arranged at the middle end of the cross bar, the lower end of the rotating mechanism is detachably connected with the ropes, the lower end of the ropes is fixedly connected with the middle end of the pendulum bob, the locking mechanism is arranged on one side of the rotating mechanism, and the locking mechanism is rotatably connected with the cross bar.
Further, rotary mechanism includes first pivot, steering column, lead screw and nut, first pivot with the whippletree rotates to be connected, the steering column transversely set up and one end with first pivot fixed connection, the lead screw top fixed connection of steering column free end and perpendicular setting, the inside diameter that sets up of locking mechanism is greater than the through-hole of lead screw diameter, the lead screw passes locking mechanism and with locking mechanism's through-hole sliding connection, lead screw lower extreme threaded connection is with its assorted nut, the nut external diameter is greater than locking mechanism's through-hole diameter.
Further, locking mechanism includes second pivot and L shape telescopic link, the second pivot with the whippletree rotates to be connected, the shape of L shape telescopic link is for L shape and the top that includes vertical part and horizontal portion can extend, L shape telescopic link top with the second pivot rotates to be connected, L shape telescopic link horizontal portion is provided with the diameter and is greater than the through-hole of lead screw diameter.
Further, still include check separation blade, check separation blade perpendicular to ground sets up and passes the whippletree and with whippletree sliding connection, check separation blade top fixedly connected with handle.
(III) advantageous effects
Compared with the prior art, the utility model has the following beneficial effects:
the utility model relates to a demonstration frame for physics teaching, wherein a base is used for stabilizing the bottom of the whole demonstration frame, supporting rods are used for supporting a cross bar at the top end of the base and are used as connecting parts between the base and the cross bar, the cross bar is used for providing a fixed point for a rotating mechanism, and the space between the cross bar and the base is used for providing a space for swinging of ropes and pendulums, the rotating mechanism, the ropes and the pendulums are sequentially connected, a locking mechanism can be used for fixing or adjusting the steering angle of the rotating mechanism so as to provide the swinging rule of the pendulums under different angles, two groups of symmetrically arranged supporting rods are fixedly connected at the upper end of the base, the cross bar is transversely arranged right above the base, the top ends of the two groups of supporting rods are respectively and fixedly connected with the lower end of the cross bar, the rotating mechanism is arranged at the middle end of the cross bar, the lower end of the rotating mechanism is detachably connected with the ropes, and the lower end of the ropes is fixedly connected with the middle end of the pendulums, a locking mechanism is arranged on one side of the rotating mechanism and is rotationally connected with the cross bar, and the influence of the rotating angle of the top of the rope on the motion of the pendulum bob is demonstrated by adjusting the locking degree of the locking mechanism to the rotating mechanism and then swinging the pendulum bob.
The check baffle is perpendicular to the ground, penetrates through the cross bar and is in sliding connection with the cross bar, a handle is fixedly connected to the top end of the check baffle, and the change of the swing amplitude of the pendulum bob after swinging is demonstrated by putting down and lifting the check baffle through lifting the handle.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of a rotary mechanism of the present invention;
fig. 3 is a schematic view of the locking mechanism of the present invention.
1-base, 2-support rod, 3-horizontal bar, 4-rotating mechanism, 5-rope, 6-pendulum bob, 7-locking mechanism, 8-grid baffle plate, 41-first rotating shaft, 42-steering rod, 43-screw rod, 44-nut, 71-second rotating shaft and 72-L-shaped telescopic rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
A demonstration frame for physical teaching as shown in fig. 1-3, including base 1, bracing piece 2, whippletree 3, rotary mechanism 4, rope 5, pendulum 6 and locking mechanism 7, 1 upper end fixedly connected with symmetry of base sets up two sets of bracing piece 2, whippletree 3 transversely set up directly over base 1 and two sets of 2 tops of bracing piece respectively with 3 lower extreme fixed connection of whippletree, 3 middle-ends of whippletree are provided with rotary mechanism 4, 4 lower extremes of rotary mechanism can be dismantled and be connected with rope 5, 5 lower extremes of rope with 6 middle-end fixed connection of pendulum, 4 one sides of rotary mechanism are provided with locking mechanism 7, locking mechanism 7 with whippletree 3 rotates and is connected.
The rotating mechanism 4 comprises a first rotating shaft 41, a steering rod 42, a screw rod 43 and a nut 44, the first rotating shaft 41 is rotatably connected with the cross bar 3, the steering rod 42 is transversely arranged, one end of the steering rod 42 is fixedly connected with the first rotating shaft 41, the free end of the steering rod 42 is fixedly connected with the top end of the vertically arranged screw rod 43, a through hole with a diameter larger than that of the screw rod 43 is arranged inside the locking mechanism 7, the screw rod 43 passes through the locking mechanism 7 and is slidably connected with the through hole of the locking mechanism 7, the lower end of the screw rod 43 is in threaded connection with the nut 44 matched with the screw rod 43, the outer diameter of the nut 44 is larger than that of the through hole of the locking mechanism 7, the locking mechanism 7 comprises a second rotating shaft 71 and an L-shaped telescopic rod 72, the second rotating shaft is rotatably connected with the cross bar 3, the L-shaped telescopic rod 72 is in an L shape and can extend from the top end of the L-shaped telescopic rod comprising a vertical part and a transverse part, l shape telescopic link 72 top with second pivot 71 rotates to be connected, the horizontal portion of L shape telescopic link 72 is provided with the diameter and is greater than the through-hole of lead screw 43 diameter still includes check separation blade 8, 8 perpendicular to ground settings of check separation blade just pass whippletree 3 and with 3 sliding connection of whippletree, 8 top fixedly connected with handles of check separation blade.
The utility model relates to a demonstration frame for physical teaching, when in specific use, a base 1 is used for stabilizing the bottom of the whole demonstration frame, a support rod 2 is used for supporting a cross rod 3 at the top end of the support rod and is used as a connecting part between the base 1 and the cross rod 3, the cross rod 3 is used for providing a fixed point for a rotating mechanism 4, a space between the cross rod 3 and the base is used for providing a space for swinging of a rope 5 and a pendulum bob, the rotating mechanism 4, the rope 5 and the pendulum bob 6 are sequentially connected, a locking mechanism 7 can be used for fixing or adjusting the steering angle of the rotating mechanism 4 so as to provide the swinging rule of the pendulum bob 6 under different angles, two groups of support rods 2 which are symmetrically arranged are fixedly connected at the upper end of the base 1, the cross rod 3 is transversely arranged right above the base 1, the top ends of the two groups of support rods 2 are respectively and fixedly connected with the lower end of the cross rod 3, the middle end of the cross rod 3 is provided with the rotating mechanism 4, the lower end of the rotating mechanism 4 is detachably connected with a rope 5, the lower end of the rope 5 is fixedly connected with the middle end of a pendulum bob 6, a locking mechanism 7 is arranged on one side of the rotating mechanism 4, the locking mechanism 7 is rotatably connected with the cross bar 3, and the influence of the rotating angle of the top of the rope 5 on the motion of the pendulum bob is demonstrated by adjusting the locking degree of the locking mechanism 7 to the rotating mechanism 4 and then swinging the pendulum bob 6.
The rotating mechanism 4 comprises a first rotating shaft 41 rotatably connected with the cross bar 3, a steering rod 42 for steering and fixing a steering angle, a screw rod 43 and a nut 44 for locking the steering angle, the first rotating shaft 41 is rotatably connected with the cross bar 3, the steering rod 42 is transversely arranged, one end of the steering rod 42 is fixedly connected with the first rotating shaft 41, the free end of the steering rod 42 is fixedly connected with the top end of the vertically arranged screw rod 43, a through hole with a diameter larger than that of the screw rod 43 is arranged inside the locking mechanism 7, the screw rod 43 passes through the locking mechanism 7 and is slidably connected with the through hole of the locking mechanism 7, the lower end of the screw rod 43 is in threaded connection with the nut 44 matched with the screw rod, the outer diameter of the nut 44 is larger than that of the through hole of the locking mechanism 7, the locking mechanism 7 comprises a second rotating shaft 71 for adjusting the whole locking mechanism 7 relative to the cross bar 3 and an L-shaped telescopic rod 72 for locking the rotating mechanism 4, the second rotating shaft is rotatably connected with the cross bar 3, l shape telescopic link 72's shape can extend for L shape and the top including vertical part and horizontal part, L shape telescopic link 72 top rotates with second pivot 71 to be connected, L shape telescopic link 72 horizontal part is provided with the through-hole that the diameter is greater than lead screw 43 diameter, 8 perpendicular to ground settings of check block piece just pass whippletree 3 and with whippletree 3 sliding connection, 8 top fixedly connected with handles of check block piece, put down check block piece 8 through promoting the handle and lift the change that demonstrates the swing range after pendulum 6 swings.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (4)
1. The utility model provides a demonstration frame for physical teaching which characterized in that: comprises a base (1), a support rod (2), a cross bar (3), a rotating mechanism (4), a rope (5), a pendulum (6) and a locking mechanism (7), wherein,
the upper end of the base (1) is fixedly connected with two groups of symmetrically arranged support rods (2), the cross bar (3) is transversely arranged right above the base (1), and the top ends of the two groups of support rods (2) are respectively and fixedly connected with the lower end of the cross bar (3);
the middle end of the cross bar (3) is provided with the rotating mechanism (4), the lower end of the rotating mechanism (4) is detachably connected with the rope (5), and the lower end of the rope (5) is fixedly connected with the middle end of the pendulum bob (6);
and one side of the rotating mechanism (4) is provided with the locking mechanism (7), and the locking mechanism (7) is rotationally connected with the cross bar (3).
2. A demonstration stand for physical teaching according to claim 1 further comprising: rotary mechanism (4) include first pivot (41), steering column (42), lead screw (43) and nut (44), wherein, first pivot (41) with whippletree (3) rotate to be connected, steering column (42) transversely set up and one end with first pivot (41) fixed connection, steering column (42) free end and perpendicular lead screw (43) top fixed connection who sets up, locking mechanism (7) inside sets up the diameter and is greater than the through-hole of lead screw (43) diameter, lead screw (43) pass locking mechanism (7) and with the through-hole sliding connection of locking mechanism (7), lead screw (43) lower extreme threaded connection and its assorted nut (44), nut (44) external diameter is greater than the through-hole diameter of locking mechanism (7).
3. A demonstration stand for physical teaching according to claim 2 wherein: locking mechanism (7) include second pivot (71) and L shape telescopic link (72), the second pivot with whippletree (3) rotate and are connected, the shape of L shape telescopic link (72) is for L shape and the top including vertical part and horizontal part can extend, L shape telescopic link (72) top with second pivot (71) rotate and are connected, L shape telescopic link (72) horizontal part is provided with the diameter and is greater than the through-hole of lead screw (43) diameter.
4. A demonstration stand for physical teaching according to claim 1 further comprising: still include check separation blade (8), check separation blade (8) perpendicular to ground sets up and passes whippletree (3) and with whippletree (3) sliding connection, check separation blade (8) top fixedly connected with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121050827.5U CN216623553U (en) | 2021-05-17 | 2021-05-17 | Demonstration frame for physical teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121050827.5U CN216623553U (en) | 2021-05-17 | 2021-05-17 | Demonstration frame for physical teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216623553U true CN216623553U (en) | 2022-05-27 |
Family
ID=81681898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121050827.5U Active CN216623553U (en) | 2021-05-17 | 2021-05-17 | Demonstration frame for physical teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216623553U (en) |
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2021
- 2021-05-17 CN CN202121050827.5U patent/CN216623553U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221228 Address after: Room 423, Building 9, No. 235, Sanlin Road, Pudong New Area, Shanghai, 200120 Patentee after: Shanghai Xinmao Laboratory Equipment Co.,Ltd. Address before: 719000 No. 51 Songwen Road, Yuyang District, Yulin City, Shaanxi Province Patentee before: YULIN University |
|
| TR01 | Transfer of patent right |