CN205665933U

CN205665933U - Measure linear motion mean speed's device

Info

Publication number: CN205665933U
Application number: CN201521129622.0U
Authority: CN
Inventors: 周旭; 何志敏
Original assignee: Pingchang Saddle Primary School
Current assignee: Pingchang Saddle Primary School
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2016-10-26
Anticipated expiration: 2025-12-29

Abstract

The utility model relates to a teaching experiment equipment field, concretely relates to measure linear motion mean speed's device, including slide, locking baffle, starting drive, time -recorder, stopping button, measured object piece, cushion, other connecting pieces in relevancy have shifting chute, stopper, spacing groove, the preferred perpendicular to slide of locking baffle, stops to press the bond fixation on the locking baffle at the time -recorder, and scale, shifting chute are fixed on the slide, and starting drive passes through shifting chute sliding connection slide, and the spacing groove is opened on the slide, and the stopper is fixed in measured object piece bottom, pulling starting drive, measured object piece pass through stopper along spacing groove rectilinear movement on the slide, and the time -recorder begins the timing simultaneously, on the measured object piece striking locking baffle stop the button after stop to remove, the time -recorder stops the timing simultaneously. This device be one kind based on objective factor and the higher measure linear motion mean speed's device of the degree of accuracy, not fragile experimental device simultaneously.

Description

A kind of device measuring linear motion average speed

Technical field

This utility model relates to a kind of education experiment equipment, a kind of device measuring linear motion average speed.

Background technology

In existing physics teaching in secondary school course, relating to the experiment measuring linear motion average speed, this experiment is middle school The emphasis of Physics Course.The most existing doing the experiment equipment that this experiment applied and include a slope, it is straight that slope is provided with dolly Line motion track, dolly and timer.When utilizing this experiment equipment to measure linear motion average speed, it is usually and manually sentences When disconnected trolley carries out timer respectively when the initial position by subscribing and final position, moved by trolley Distance and timer time difference value calculate the linear motion average speed measured value of this trolley.

But when utilizing this experiment equipment to measure linear motion average speed, there are two defects:

1, the artificial timing front and back used, is entirely the judgement by subjective consciousness and comes timing before and after timer, different People's timing can be entirely different, even difference is very big, directly results in the dolly linear motion average speed difference measured by experiment The biggest, the average speed error that moves along a straight line when the dolly measured by the most this measurement equipment slides on the slope is relatively big, Accuracy is low；

2, due to the typically no stop in slope, or barrier height is the shortest, and dolly accelerates in sliding process non-downwards Chang Rongyi slides to ground, causes the damage of dolly or other equipment.

Utility model content

Goal of the invention of the present utility model is: exists for prior art and utilizes existing experiment equipment to pass through human subjective Dolly linear motion average speed error measured by timing is relatively big, the problem that precision is relatively low, it is provided that a kind of based on objective factor And the device measuring linear motion average speed that accuracy is higher.

To achieve these goals, the technical solution adopted in the utility model is:

A kind of device measuring linear motion average speed, including measured object block, provides straight line fortune for described measured object block Dynamic slideway, and timer, also include:

Starter, when starting described timer while being used for starting the motion of measured object block；

Arresting stop, when arresting stop described in measured object block moving contact, described arresting stop starts described timer Stop timing.

Use this device, trigger measured object block by starter and move, realize timer is initially counted simultaneously Time, during by measured object block contact arresting stop, arresting stop starts timer and stops timing, it is possible to realize the fortune of measured object block Starting Tong Bu with the timing of timer during dynamic original state, at the end of motion, triggering timing device stops the synchronization of timing simultaneously, For the relatively artificial subjective judgment timing of this timing mode, chronometric data is the most objective, also make measured by the measured object block that obtains The average speed of linear motion is more objective, and accuracy is higher.This apparatus structure is simple and convenient to operate, and is applicable not only to existing Middle School Physics is about the experiment of linear motion average speed, but also is applicable to the average speed of other field testee linear motion The measurement requirement of degree.

Preferably, described starter includes and is fixed on the pedestal that the shifting chute below described slideway is slidably connected, institute Stating and have slidably starting handle, fixing post, startup to clash into post on pedestal, described starting handle and described fixing post are by resetting Parts connect, and described startup clashes into the post described timer of wired or wireless connection, and described starting handle blocks and is fixed on described quilt Surveying the limited block below thing block, when pulling described starting handle, described measured object block starts, and the most described starting handle is touched Described startup clashes into post, and described timer starts timing.

Preferably, described arresting stop includes the stop baffle plate being located on described slideway, and described stop baffle plate is provided with and stops Only button, described in stop key the described timer of wired or wireless connection, when measured object block moves to stop tab and touches Described when stopping key, described timer stops timing.

Preferably, described slideway is provided with for the rule of measured object block move distance described in labelling.

Utilize the rule being arranged on slideway, it is possible to directly measure the length obtaining measured object block quickly, effectively, accurately Degree.

Preferably, described slideway is the slope with 5-45 ° of horizontal tilt angle.

Preferably, described slideway includes a horizontal panel and is positioned at the cushion block of described panel end.

Preferably, described slideway is provided with the linear stopper slot preventing described measured object block sideslip, described measured object block Bottom is provided with the described limited block adaptive with described stopper slot.

Preferably, described measured object block is carriage.

In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:

1, a kind of device measuring linear motion average speed described in the utility model, by using starter to touch Send out the motion of measured object block, realize timer is carried out initial timing simultaneously, during by measured object block contact arresting stop, stop dress Put startup timer and stop timing, it is possible to the motion realizing measured object block initially starts Tong Bu with the timing of timer, exists simultaneously At the end of motion, triggering timing device stops the synchronization of timing, and for the relatively artificial subjective judgment timing of this timing, chronometric data is more For objective, also make measured by obtain measured object block linear motion average speed more objective, accuracy is higher；Structure letter Single, easy to operate, it is applicable not only to the experiment about linear motion average speed of the existing Middle School Physics, but also is applicable to other The measurement requirement of field testee linear motion average speed；

2, a kind of device measuring linear motion average speed described in the utility model, by being provided with straight line on slideway Shape stopper slot, is provided with limited block bottom measured object block, measured object block is coordinated by limited block and chute, it is possible to realize measured object Block runs on slideway in a linear fashion, effectively prevents measured object block sideslip, is not fall off causing experiment equipment to damage.

Accompanying drawing explanation

Fig. 1 is the main schematic diagram of structure of a kind of device measuring linear motion average speed described in the utility model；

Fig. 2 is the top view of Fig. 1 middle slideway；

Fig. 3 is that timer is with starter, stop key the conspectus being connected；

Fig. 4 is starter Starting mode schematic diagram in Fig. 3；

Fig. 5 is the structural representation that in Fig. 3, starter starts when measured object BOB(beginning of block) moves.

Labelling in figure: 1-slideway, 2-rule, 3-starter, 31-starts shock post, and 32-starting handle, 33-fixes Post, 34-reset components, 35-pedestal, 4-timer, 5-stops key, 51-stopping shock post, 6-measured object block, 7-limited block, 8-stopper slot, 9-cushion block, 10-stop baffle plate, 11-shifting chute.

Detailed description of the invention

Below in conjunction with the accompanying drawings, this utility model is described in detail.

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain this Utility model, is not used to limit this utility model.

Embodiment

As shown in Figure 1-2, a kind of device measuring linear motion average speed described in the utility model includes slideway 1, carves Degree chi 2, starter 3, timer 4, stop key 5, measured object block 6, limited block 7, stopper slot 8, cushion block 9, stop baffle plate 10, Shifting chute 11.

Cushion block 9, in slideway 1 one end, allows slideway 1 horizontal by certain angle；Timer 4, stops key 5 at stop catch On plate 10, stop baffle plate 10 is preferably perpendicular to slideway 1；Rule 2 is fixed on above slideway 1, and shifting chute 11 is fixed on slideway 1 time Side, starter 3 is slidably connected with shifting chute 11；Stopper slot 8 is opened on slideway 1, and limited block 7 is fixed on below measured object block 6 And mate with stopper slot 8；Original state starter 3 blocks limited block 7 makes measured object block 6 static.

As it is shown on figure 3, starter 3 and stop key 5 by wired or wirelessly connection timer 4.

When starter 3 starts, measured object block 6 starts mobile, and timer 4 starts timing simultaneously；Measured object block 6 moves to When stopping at stop baffle plate 10, touching simultaneously stops key 5, and timer 4 stops timing.

As illustrated in figures 4-5, starter 3 includes pedestal 35, starts and clashes into post 31, starting handle 32, and fixing post 33 resets Parts 34.

Starting handle 32 can slide on pedestal 35, and starting handle 32 is connected by reset components 34 with fixing post 33, opens Fixed handle 32 can be touched startup and clash into post 31；One end of original state starting handle 32 is blocked limited block 7 in stopper slot 8 and is allowed Measured object block 6 is static；Pulling starting handle 32, starting handle 32 no longer to block limited block 7, measured object block 6 moves, and starts simultaneously Handle 32 touching starts clashes into post 31, and timer 4 starts timing.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model Protection domain within.

Claims

1. measure a device for linear motion average speed, including measured object block (6), provide straight for described measured object block (6) The slideway (1) of line motion, and timer (4), it is characterised in that also include:

Starter (3), starts described timer (4) timing while being used for starting measured object block (6) motion；

Arresting stop, when arresting stop described in measured object block (6) moving contact, described arresting stop starts described timer (4) timing is stopped.

A kind of device measuring linear motion average speed the most according to claim 1, it is characterised in that described startup fills Put the pedestal (35) that (3) include being slidably connected with the shifting chute (11) being fixed on described slideway (1) lower section, on described pedestal (35) Slidably starting handle (32), fixing post (33), startup is had to clash into post (31), described starting handle (32) and described fixing post (33) by reset components (34) connect, described start clash into the described timer of post (31) wired or wireless connection (4), described in open Fixed handle (32) original state coordinates with the limited block (7) being fixed on described measured object block (6) lower section and makes measured object block (6) protect Holding static, described measured object block (6) setting in motion when pulling described starting handle (32), the most described starting handle (32) touches Touching described startup and clash into post (31), described timer (4) starts timing.

A kind of device measuring linear motion average speed the most according to claim 1, it is characterised in that described stopping fills Putting the stop baffle plate (10) including being located on described slideway (1), described stop baffle plate (10) is provided with stop key (5), described Stop key the described timer of (5) wired or wireless connection (4), when measured object block (6) moves to stop baffle plate (10) and touches Stop key described in (5) time, described timer (4) stop timing.

A kind of device measuring linear motion average speed the most according to claim 3, it is characterised in that described slideway (1) it is provided with the rule (2) for measured object block (6) move distance described in labelling.

A kind of device measuring linear motion average speed the most according to claim 3, it is characterised in that described slideway (1) it is the slope with 5-45 ° of horizontal tilt angle.

A kind of device measuring linear motion average speed the most according to claim 5, it is characterised in that described slideway (1) include a horizontal panel and be positioned at the cushion block (9) of described panel end.

A kind of device measuring linear motion average speed the most according to claim 2, it is characterised in that described slideway (1) being provided with and prevent the linear stopper slot (8) of described measured object block (6) sideslip, described measured object block (6) bottom is provided with and institute State the described limited block (7) that stopper slot (8) is adaptive.

A kind of device measuring linear motion average speed the most according to claim 3, it is characterised in that described measured object Block (6) is carriage.