Precise timing pendulum

Abstract

The invention relates to the related technical field of experimental equipment, in particular to a precise timing pendulum which comprises a base, and the surface of a connecting piece is fixedly connected with a swing measurer. According to the pendulum with the precise timing function, through the arrangement of the pendulum balls with holes, the adjustable disc, the pendulum rope with scales, the infrared induction head, the counter and the swing amplitude measurer which are different in mass, when the pendulum is used, firstly, the proper pendulum ball is selected, the pendulum ball is connected with a screw rod at the tail end of the pendulum rope, and a grip is held to rotate; at the moment, the line cup rotates through the rotating shaft to wind the swing rope, meanwhile, the mark on the swing rope can be observed, then the counter is turned on, the needed swing frequency is set, the swing amplitude of the swing rope is selected through the swing amplitude measurer, then the infrared induction head is turned on, and in the swing process of the swing ball, the counter can sequentially count and time. Therefore, manual counting and timing are replaced, and the effect of accurate timing and counting is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field related to experimental equipment, and in particular to a pendulum for precise timing. Background Art

[0002] In many fields such as scientific research, physical experiments, and teaching, the precise measurement of time and the accurate acquisition of parameters related to the swing of an object are of great significance. Traditional pendulum devices have certain limitations in timing and parameter measurement. Therefore, a pendulum with precise timing is particularly needed.

[0003] However, existing pendulums often rely on manual observation and recording when timing is required. This method is extremely susceptible to interference from human factors. Due to different human reaction times and visual errors, it is difficult to accurately record the start and end time of each swing, resulting in inaccurate measured period data, which in turn affects calculations and experimental results.

[0004] Invention patent content

[0005] The purpose of the present invention is to provide a pendulum with precise timing to solve the problem that the existing pendulum proposed in the above background technology often relies on manual observation and manual recording during the timing process. This method is easily interfered with by human factors. Due to different human reaction times and visual errors, it is difficult to accurately record the start and end time of each swing, which makes the measured period data inaccurate, thereby affecting the calculation and experimental results.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pendulum for precise timing, comprising a base, a support rod fixedly connected to the surface of the base, a connecting plate connected to the surface of the support rod, a fixing bolt passing through the surface of the connecting plate, a rotating shaft rotatably connected to the interior of the connecting plate, a positioning plate fixedly connected to the surface of the rotating shaft, a wire cup fixedly connected to the other surface of the rotating shaft, a handle fixedly connected to the surface of the wire cup, a guide ring fixedly connected to the surface of the connecting plate, a pendulum rope wrapped around the surface of the wire cup, the other end of the pendulum rope fixedly connected to a connecting piece, a pendulum ball connected to the surface of the connecting piece, a connecting groove provided on the surface of the pendulum ball, a sleeve fixedly connected to the surface of the support rod, a fixing plate fixedly connected to the surface of the sleeve, an infrared sensor head connected to the surface of the fixing plate, a counter electrically connected to the surface of the infrared sensor head, and a swing amplitude measurer fixedly connected to the surface of the connecting piece.

[0007] Preferably, the connecting piece is threadedly connected to the support rod through a fixing bolt, and the support rod is located at the center of the base.

[0008] Preferably, the spool forms a rotating structure through a rotating shaft and a positioning piece, and the position of the spool corresponds to the position of the guide ring.

[0009] Preferably, the surface of the pendulum rope is provided with multiple groups of marks, and the distance between the multiple groups of marks is five centimeters.

[0010] Preferably, the end of the pendulum rope is connected to a screw rod, the pendulum ball is threadedly connected to the connecting piece via a thread, and the interior of the pendulum ball is a hollow structure.

[0011] Preferably, a thread is provided on the surface of the infrared sensing head, and the infrared sensing head is threadedly connected to the fixing plate via the thread.

[0012] Preferably, the position of the swing amplitude measuring device corresponds to the position of the swing rope, and the swing amplitude measuring device is semicircular.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the pendulum with precise timing is provided with pendulum balls with holes of different masses, an adjustable disc, a pendulum rope with scales, an infrared sensing head, a counter and a swing amplitude measuring device. When in use, first select a suitable pendulum ball, connect the pendulum ball to the screw at the end of the pendulum rope, hold the handle to rotate it, and the spool will then reel in the pendulum rope by rotating the rotating shaft. At the same time, the mark on the pendulum rope can be observed to adjust the length of the pendulum rope to the required length. Then, turn on the counter, set the required number of swings, and then select the required swing amplitude of the pendulum rope through the swing amplitude measuring device. Then, turn on the infrared sensing head. During the swinging of the pendulum ball, the counter will count and time in sequence until the set number is reached, thereby replacing manual counting and timing, thereby achieving the effect of precise timing and counting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the side appearance structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the rotation shaft and the positioning piece cooperating with each other in the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the infrared sensor head and the fixing plate cooperating with each other in the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the swing ball and the connecting piece cooperating with each other in the present invention.

[0018] In the figure: 1. Base; 2. Support rod; 3. Connecting plate; 4. Fixing bolt; 5. Rotating axis; 6. Positioning plate; 7. Spool; 8. Handle; 9. Guide ring; 10. Pendulum rope; 11. Connecting piece; 12. Pendulum ball; 13. Connecting groove; 14. Sleeve; 15. Fixing plate; 16. Infrared sensor head; 17. Counter; 18. Swing amplitude measuring device. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings of the new embodiments of the present invention to clearly and completely describe the technical solutions in the new embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The present invention provides a technical solution: a precise timing pendulum, comprising a base 1, a support rod 2 is fixedly connected to the surface of the support rod 2, a connecting piece 3 is connected to the surface of the connecting piece 3, a fixing bolt 4 is passed through the surface of the connecting piece 3, a rotating shaft 5 is rotatably connected to the inside of the connecting piece 3, a positioning piece 6 is fixedly connected to the surface of the rotating shaft 5, a wire cup 7 is fixedly connected to the other surface of the rotating shaft 5, a handle 8 is fixedly connected to the surface of the wire cup 7, a guide ring 9 is fixedly connected to the surface of the connecting piece 3, a pendulum rope 10 is wound around the surface of the wire cup 7, the other end of the pendulum rope 10 is fixedly connected to a connecting piece 11, a pendulum ball 12 is connected to the surface of the connecting piece 11, a connecting groove 13 is provided on the surface of the pendulum ball 12, a sleeve 14 is fixedly connected to the surface of the support rod 2, a fixing piece 15 is fixedly connected to the surface of the sleeve 14, a surface of the fixing piece 15 is connected to an infrared sensor head 16, a surface of the infrared sensor head 16 is electrically connected to a counter 17, a surface of the connecting piece 3 is fixedly connected to a swing amplitude measuring The measuring device 18 is provided with the rotating shaft 5, the positioning piece 6, the spool 7, the handle 8, the guide ring 9, the pendulum rope 10, the connecting piece 11, the pendulum ball 12, the connecting groove 13, the sleeve 14, the fixing piece 15, the infrared sensor head 16, the counter 17 and the swing amplitude measuring device 18. When in use, first select a suitable pendulum ball 12, connect the pendulum ball 12 with the connecting piece 11, hold the handle 8 and rotate it, and the spool 7 will rotate through the rotating shaft 5 to reel in the pendulum rope 10. At the same time, the mark on the pendulum rope 10 can be observed to adjust the length of the pendulum rope 10 to the required length. Then, turn on the counter 17, set the required number of swings, and then select the required swing amplitude of the pendulum rope 10 through the swing amplitude measuring device 18. Then turn on the infrared sensor head 16. During the swinging process of the pendulum ball 12, the counter 17 will count and time in sequence until the set number is reached, thereby replacing manual counting and timing, thereby achieving the effect of accurate timing and counting.

[0021] Furthermore, the connecting piece 3 is threadedly connected to the support rod 2 through the fixing bolt 4. The support rod 2 is located at the center of the base 1. Through the setting of the fixing bolt 4, when in use, the fixing bolt 4 passes through the connecting piece 3 to connect the connecting piece 3 to the support rod 2, thereby completing the installation of the connecting piece 3.

[0022] Furthermore, the spool 7 forms a rotating structure through the rotating shaft 5 and the positioning piece 6. The position of the spool 7 corresponds to the position of the guide ring 9. Through the setting of the spool 7, when in use, the spool 7 is rotated by the handle 8 to control the length of the swing rope 10.

[0023] Furthermore, the surface of the pendulum rope 10 is provided with multiple groups of marks, and the distance between the multiple groups of marks is five centimeters. Through the setting of the pendulum rope 10, when in use, the pendulum rope 10 can be adjusted according to the marks by rotating the spool 7 to achieve the length required for the experiment.

[0024] Furthermore, a screw is connected to the end of the pendulum rope 10, and the pendulum ball 12 is threadedly connected to the connecting piece 11 through a thread, so as to facilitate the replacement of the pendulum ball 12. The interior of the pendulum ball 12 is a hollow structure. Through the setting of the pendulum ball 12, the pendulum ball 12 is connected to the connecting piece 11, thereby completing the installation of the pendulum ball 12.

[0025] It should be further explained that the pendulum ball 12 is a replaceable component. At the same time, the pendulum ball 12 has various specifications. What is unified is that the outer volume of the pendulum balls 12 of different specifications is fixed. The difference is that the size of the hollow space inside them is different. By replacing the pendulum balls 12 with different internal hollow spaces, the weight of the pendulum ball 12 can be changed. By changing the weight of the pendulum ball 12, the weight of the pendulum can be changed. According to actual needs, a suitable pendulum ball 12 can be selected to make the pendulum stably swing left and right during reciprocating motion, thereby improving stability. Compared with the prior art, the air resistance encountered by the round iron sheet during the swinging process varies greatly, resulting in a large time error for each swing of the pendulum. The air resistance encountered by the present invention during the swinging process is more stable, and the time error is small. In addition, the solution of the present invention can be used to study whether the speed of the pendulum is related to the weight of the pendulum, making the research results clearer.

[0026] Furthermore, a thread is provided on the surface of the infrared sensing head 16, and the infrared sensing head 16 is threadedly connected to the fixing plate 15 through the thread. Through the setting of the infrared sensing head 16, when in use, the infrared sensing head 16 is connected to the fixing plate 15 through the thread, thereby completing the installation of the infrared sensing head 16, and the infrared sensing head 16 will sense the swing of the pendulum ball 12.

[0027] Furthermore, the position of the swing amplitude measuring device 18 corresponds to the position of the swing rope 10. The swing amplitude measuring device 18 is semicircular. Through the setting of the swing amplitude measuring device 18, when in use, the swing rope 10 needs to first be measured by the swing amplitude measuring device 18 to achieve the required swing angle.

[0028] Working principle: through the setting of the rotating shaft 5, positioning piece 6, spool 7, handle 8, guide ring 9, pendulum rope 10, connecting piece 11, pendulum ball 12, connecting groove 13, sleeve 14, fixing piece 15, infrared sensor head 16, counter 17 and swing amplitude measuring device 18, when in use, first select a suitable pendulum ball 12, connect the pendulum ball 12 to the screw at the end of the pendulum rope 10, hold the handle 8 and rotate it, the spool 7 will then rotate through the rotating shaft 5 to reel in the pendulum rope 10, and at the same time, you can observe the mark on the pendulum rope 10 to adjust the length of the pendulum rope 10 to the required length, then turn on the counter 17, set the required number of swings, and then pass the pendulum rope 10 through the swing amplitude measuring device 18 to select the required swing amplitude, and then turn on the infrared sensor head 16. During the swinging of the pendulum ball 12, the counter 17 will count and time in sequence until the set number is reached, thereby replacing manual counting and timing, thereby achieving the effect of accurate timing and counting.

[0029] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pendulum for precise timing, comprising a base (1), characterized in that: The surface of the base (1) is fixedly connected to a support rod (2), the surface of the support rod (2) is connected to a connecting piece (3), the surface of the connecting piece (3) is penetrated by a fixing bolt (4), the interior of the connecting piece (3) is rotatably connected to a rotating shaft (5), the surface of the rotating shaft (5) is fixedly connected to a positioning piece (6), the other surface of the rotating shaft (5) is fixedly connected to a wire cup (7), the surface of the wire cup (7) is fixedly connected to a handle (8), the surface of the connecting piece (3) is fixedly connected to a guide ring (9), the surface of the wire cup (7) is wound with a swing rope (10 ), the other end of the swing rope (10) is fixedly connected to a connecting piece (11), the surface of the connecting piece (11) is connected to a swing ball (12), the surface of the swing ball (12) is provided with a connecting groove (13), the surface of the support rod (2) is fixedly connected to a sleeve (14), the surface of the sleeve (14) is fixedly connected to a fixing plate (15), the surface of the fixing plate (15) is connected to an infrared sensor head (16), the surface of the infrared sensor head (16) is electrically connected to a counter (17), and the surface of the connecting piece (3) is fixedly connected to a swing amplitude measuring device (18).

2. A pendulum for precise timing according to claim 1, characterized in that: The connecting piece (3) is threadedly connected to the support rod (2) via a fixing bolt (4), and the support rod (2) is located at the center of the base (1).

3. The precise timing pendulum according to claim 1, characterized in that: The spool (7) forms a rotating structure through a rotating shaft (5) and a positioning piece (6), and the position of the spool (7) corresponds to the position of the guide ring (9).

4. The precise timing pendulum according to claim 1, characterized in that: The surface of the pendulum rope (10) is provided with multiple groups of marks, and the distance between the multiple groups of marks is five centimeters.

5. The precise timing pendulum according to claim 1, characterized in that: The end of the swing rope (10) is connected to a screw rod, and the swing ball (12) is threadedly connected to the connecting piece (11) through a thread, and the interior of the swing ball (12) is a hollow structure.

6. The precise timing pendulum according to claim 1, characterized in that: The surface of the infrared sensing head (16) is provided with threads, and the infrared sensing head (16) is threadedly connected to the fixing plate (15) via the threads.

7. The pendulum for precise timing according to claim 1, characterized in that: The position of the swing amplitude measuring device (18) corresponds to the position of the swing rope (10), and the swing amplitude measuring device (18) is semicircular.

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