CN208908095U

CN208908095U - A kind of movement of falling object experimental provision

Info

Publication number: CN208908095U
Application number: CN201820415538.2U
Authority: CN
Inventors: 李志强; 黄晨; 姜倩; 颜艳梅; 阳瑞林
Original assignee: Hengyang Normal University
Current assignee: Hengyang Normal University
Priority date: 2018-03-27
Filing date: 2018-03-27
Publication date: 2019-05-28
Anticipated expiration: 2028-03-27

Abstract

A kind of movement of falling object experimental provision, it is related to experiment equipment technical field, it includes several experiment beads, for loading and the release device of release experiment bead, for acquiring the detection device of experimental data, for receiving the reception device and Connection Release device of experiment bead, the processor of detection device and reception device, release device includes the release pipe for release experiment bead, discharge the first valve being equipped at the bottom nozzle of pipe for stopping to test bead whereabouts, the side wall of the release pipe is equipped with ball hole and the ball hole is connected with and deposits bulb, ball hole be equipped with for stops test bead from deposit bulb enter discharge pipe the second valve, detection device includes the airborne laser range finder being arranged in above release pipe, the airborne laser range finder can emit laser beam into release pipe and fall in laser beam on experiment bead, to It detects to test bead drop in different time points.The utility model structure is relatively simple, and cost is relatively low.

Description

A kind of movement of falling object experimental provision

Technical field

The utility model relates to experiment equipment technical field, a kind of especially movement of falling object experimental provision.

Background technique

The mode tested to the movement of falling object records under bead generally by the bead that initial velocity is zero is launched The related datas such as displacement, the time of process are fallen, to obtain the rule of gravity acceleration value and the movement of falling object.It is existing Movement of falling object experimental provision is usually arranged sensing mechanism in the side of bead fall trajectory, is spaced on sensing mechanism Equipped with multiple test points, each test point will install a sensor (such as photoelectric door or tongue tube), for detecting bead By the time of each test point to the related data for the falling bodies that gain freedom when whereabouts, since the test point to be arranged is more, Cause the structure of this kind of sensing mechanism relatively complicated, and manufacturing cost also becomes higher.

Utility model content

Purpose of the utility model is to solve the above-mentioned problems of the prior art, provide a kind of movement of falling object Experimental provision measures the related data in bead dropping process using airborne laser range finder, and structure is simple, experimental provision cost phase To lower.

In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution: a kind of movement of falling object experiment Device, including several experiment beads, for loads and the release device of release experiment bead, for acquire experiment bead whereabouts When generate experimental data detection device, for receive fallen from release device experiment bead reception device and connection The processor of release device, detection device and reception device, the release device include be vertically arranged for release experiment it is small The release pipe of ball, the inner diameter size of the release pipe and the diameter of experiment bead match, the lower tube of the release pipe The first valve for stopping to test bead whereabouts is equipped at mouthful, the side wall of the release pipe is equipped with ball hole and the ball hole It is connected with and deposits bulb, the inner diameter size for depositing bulb and the diameter of experiment bead match, the bottom for depositing bulb Nozzle is sloped down to be connect with ball hole, and the ball hole is located at the top of the first valve and against the first valve, it is described into Ball mouth is equipped with for stopping to test bead from the second valve for depositing bulb and entering release pipe, the controller the first valve of control and Second valve is alternately opened to make release device release experiment bead one by one, and the detection device includes setting on release pipe The airborne laser range finder of side, the airborne laser range finder can emit laser beam into release pipe and fall in laser beam on experiment bead, Controlling airborne laser range finder by the controller can detect that experiment bead drop in different time points, the reception dress Lower section setting in the release device and signal that can will receive experiment bead be sent to controller.

Further, first valve or/and the second valve include casing and movable core in casing and Static iron core, the static iron core are arranged with the coil that can be powered, one end of the movable core be connected with can be inserted into release pipe or into Backing pin in ball mouth is equipped with spring between the other end and static iron core of the movable core, so that the coil is powered, the quiet iron Core, which generates magnetic force, makes movable core stress toward the movement of the direction of static iron core, and the spring-compressed, the backing pin are exited and released at this time Pipe or ball hole are put, the experiment bead can freely fall or enter in release pipe from bulb is deposited；Make the coil blackout, institute It states static iron core and loses magnetic force, the spring reset, the movable core, which drive in backing pin insertion release pipe, at this time stops experiment small Ball, which is fallen or is inserted into ball hole, stops experiment bead to enter in release pipe from bulb is deposited.

Further, the reception device includes that reception funnel, connection reception funnel lead bulb and positioned at leading ball Collection box below pipe, the bulb of leading is equipped with a photoelectric sensor, when the experiment bead is by leading bulb, the light Electric transducer generates detection signal and is transferred to controller.

Further, the reception device is arranged on a pedestal, and the pedestal is equipped with translucent cover, the reception Device and the bottom nozzle for discharging pipe are respectively positioned in translucent cover.

Preferably, stomata is offered on the lower sides of the translucent cover.

It is highly preferred that the translucent cover is the cylindrical cover of upper/lower terminal opening.

It is highly preferred that it is in semiorbicular left side and right side that the translucent cover, which includes cross section, the left side with One end of right side is hinged, the other end snaps connection.

It is highly preferred that the upper surface annular of the pedestal offers the slot of the bottom end insertion for translucent cover.

It is highly preferred that the middle part bending for depositing bulb makes its top nozzle vertically upward.

It is highly preferred that the top nozzle for depositing bulb is connected with goal funnel.

The utility model has the beneficial effects that: the first valve and the second valve are closed before experiment starts, deposit in bulb Several experiment beads are mounted with, the second valve is opened, roll into first experiment bead in release pipe and are kept off by the first valve Firmly (since ball hole abuts the first valve, at most only one is tested small club and enters release when opening the second valve Guan Zhong, subsequent experiment bead can be then blocked in by previous experiment bead and deposit in bulb), it is then shut off the second valve, is blocked Other experiment beads in bulb are deposited, laser beam is beaten the first experiment bead in release pipe by airborne laser range finder at this time On, the first valve is then opened, first experiment bead falls, airborne laser range finder institute in the recordable different time points out of controller Measure experiment bead distance of fall (such as controller can control the first valve open the moment i.e. wink of release experiment bead Between start timing, then first second, second second, third second ... record out distance measured by airborne laser range finder to get to experiment The bead drop when release was to one second, two seconds, three seconds ... respectively), acceleration of gravity can be quickly obtained by operation Value is to obtain the rule of the movement of falling object, and after falling on reception device under first experiment bead, the first valve closes again It closes, and then the second valve is again turned on, and enters second experiment bead in release pipe, thus continuous automatic release experiment Bead, what is utilized due to detection device is that airborne laser range finder measures related data in bead dropping process, so that the experiment fills The overall structure set is simplified, and cost becomes relatively low.

Detailed description of the invention

Fig. 1 is the overall structure diagram in the utility model embodiment；

Fig. 2 is the part planar structure perspective diagram in embodiment；

Fig. 3 is the enlarged diagram of structure at A in Fig. 2；

Fig. 4 is the overlooking structure diagram of translucent cover in embodiment.

Appended drawing reference are as follows:

1 --- tests bead 2a --- release pipe 2b --- and deposits bulb

3 --- the first valve 4 --- the second valve 5 --- casings

5a --- movable core 5b --- static iron core 5c --- coil

5d --- backing pin 5e --- spring 6a --- reception funnel

6b --- leads bulb 6c --- collection box 7 --- pedestal

8 --- translucent cover 8a --- left side 8b --- right sides

9 --- airborne laser range finder 10 --- goal funnels.

Specific embodiment

For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further Explanation, the content that embodiment refers to not is restriction to the utility model.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the company being also possible to inside two elements It is logical, it can be directly connected, can also indirectly connected through an intermediary, for the ordinary skill in the art, it can To understand the concrete meaning of the term as the case may be.

As shown in Figure 1-3, movement of falling object experimental provision, including several experiment beads 1, for loading and discharging reality Test bead 1 release device, for acquire experiment bead 1 fall when generate experimental data detection device, for receive from The reception device for the experiment bead 1 that release device is fallen and the processor of Connection Release device, detection device and reception device, Release device includes the release pipe 2a for release experiment bead 1 being vertically arranged, and inner diameter size and the experiment for discharging pipe 2a are small The diameter of ball 1 matches, and discharges the first valve 3 being equipped at the bottom nozzle of pipe 2a for stopping to test the whereabouts of bead 1, The side wall of release pipe 2a is equipped with ball hole and the ball hole is connected with and deposits bulb 2b, and the bottom nozzle for depositing bulb 2b tilts down To connect with ball hole, ball hole is located at the top of the first valve 3, and ball hole, which is equipped with, tests bead 1 from depositing bulb for blocking 2b enters the second valve 4 of release pipe 2a, and controller controls the first valve 3 and the second valve 4 is alternately opened to fill release Release experiment bead 1 one by one is set, detection device includes the airborne laser range finder 9 being arranged in above release pipe 2a, and airborne laser range finder 9 can Emit laser beam into release pipe 2a and fall in laser beam on experiment bead 1, controlling airborne laser range finder 9 by controller can examine It measures and tests 1 drop of bead in different time points, reception device is located at the lower section of release device and can will receive reality The signal for testing bead 1 is sent to controller.

The movement of falling object experimental provision that above embodiment provides, the first valve 3 and second before experiment starts Valve 4 is in close state, and is deposited and is mounted with several experiment beads 1 in bulb 2b, opens the second valve 4, make first experiment Bead 1, which is rolled into release pipe 2a and blocked by the first valve 3, (since ball hole is against the first valve 3, opens the second valve At most only one experiment bead 1 can enter in release pipe 2a when 4, and subsequent experiment bead 1 then can be small by previous experiment Ball 1, which is blocked in, to be deposited in bulb 2b), it is then shut off the second valve 4, is now placed in 1 meeting of experiment bead for depositing bottom in bulb 2b It is acted under the blocking of the second valve 4 by a degree of pushing and pressing and small displacement occurs backward, so that it be avoided to recline First experiment bead 1 in release pipe 2a, and then also blocked and deposited other subsequent experiment beads 1 in bulb 2b, at this time Airborne laser range finder 9 laser beam is beaten on the first experiment bead 1 in release pipe 2a, then open the first valve 3, first A experiment bead 1 falls, 1 downthrow of experiment bead measured by airborne laser range finder 9 in the recordable different time points out of controller From (such as controller can start timing controlling moment, that is, release experiment bead 1 moment that the first valve 3 is opened, and then exist First second, second second, the third second ... record out distance measured by airborne laser range finder 9 to get to experiment bead 1 respectively release extremely Drop at one second, two seconds, three seconds ...), it can obtain gravity acceleration value quickly by operation to obtain freely falling Body laws of motion, after falling on reception device under first experiment bead 1, the first valve 3 is again switched off, and then the second valve Door 4 is again turned on, and enters second experiment bead 1 in release pipe 2a, thus continuous automatic release experiment bead 1, due to What detection device utilized is that airborne laser range finder 9 measures related data in experiment bead 1 dropping process, so that the experimental provision Overall structure is simplified, and cost becomes relatively low.

Further, the first valve 3 or/and the second valve 4 include casing 5 and movable core 5a in casing 5 and Static iron core 5b, static iron core 5b are arranged with the coil 5c that can be powered, one end of movable core 5a be connected with can be inserted into release pipe 2a or It is equipped with spring 5e between the other end and static iron core 5b of backing pin 5d in ball hole, movable core 5a, so that coil 5c is powered, quiet iron Core 5b, which generates magnetic force, makes movable core 5a stress toward the movement of the direction of static iron core 5b, and spring 5e compression at this time, backing pin 5d are exited Pipe 2a or ball hole are discharged, experiment bead 1 can freely fall or enter in release pipe 2a from bulb 2b is deposited；Keep coil 5c disconnected Electricity, static iron core 5b lose magnetic force, and spring 5e resets at this time, movable core 5a drives in backing pin 5d insertion release pipe 2a and stops experiment Bead 1, which is fallen or is inserted into ball hole, stops experiment bead 1 to enter in release pipe 2a from bulb 2b is deposited, such first valve 3 or/and second valve 4 driven by coil 5c so that the actuation time switched is short, can in time, steadily control experiment bead 1 Whereabouts sequence.

Further, reception device includes that reception funnel 6a, connection reception funnel 6a lead bulb 6b and positioned at leading ball Collection box 6c below pipe 6b leads bulb 6b equipped with a photoelectric sensor (attached to be not shown in the figure), when experiment bead 1 passes through Bulb 6b is led, photoelectric sensor generates detection signal and is transferred to controller, provides an experiment bead 1 for it and whereabouts is completed The signal of process, using reception funnel 6a receive experiment bead 1 can avoid experiment bead 1 fall directly into collection box 6c for a long time and Damage pressure collection box.

Further, reception device is arranged on a pedestal 7, and pedestal 7 is equipped with translucent cover 8, reception device and releases The bottom nozzle for putting pipe 2a is respectively positioned in translucent cover 8, can will test 1 whereabouts paths traversed of bead by setting translucent cover 8 It is all surrounded, to effectively external air flow be avoided to interfere, guarantees that experiment bead 1 can have more stable fall route.

Preferably, it can be opened up on the lower sides of translucent cover 8 stomata (attached to be not shown in the figure), it can be largely On avoid because fog occur in the reasons such as humidity on translucent cover 8, and since the lower part of translucent cover 8 is arranged in stomata, enter Air-flow substantially will not interfere the experiment bead 1 when falling.

More preferably, as shown in figure 4, translucent cover 8 is the cylindrical cover of upper/lower terminal opening, wherein translucent cover 8 wraps The one end for including cross section and be in semiorbicular left side 8a and right side 8b, left side 8a and right side 8b is hinged, other end card Then button connection can also open up the slot of a bottom end insertion for translucent cover 8 (in attached drawing in the upper surface annular of pedestal 7 Be not shown), this is simple in construction, easy to disassemble and assemble, translucent cover 8 install after to disassembly, only it need to gently be lifted, make its from It is detached from slot, then dismantling left side 8a and right side 8b just can quickly take translucent cover 8 away.

In addition, in the present embodiment, the middle part bending for depositing bulb 2b makes its top nozzle vertically upward, also, is depositing ball The top nozzle of pipe 2b is connected with goal funnel 10, to facilitate experimenter toward increase experiment bead 1 in bulb 2b is deposited, more greatly Degree facilitates the progress of experiment.

Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides Formula realizes that any obvious replacement is in the protection model of the utility model under the premise of not departing from the technical program design Within enclosing.

In order to allow those of ordinary skill in the art more easily understand the improvement of the utility model compared with the existing technology it Place, some attached drawings of the utility model and description have been simplified, and for the sake of clarity, present specification is omitted one A little other elements, the element that those of ordinary skill in the art should be aware that these are omitted also may make up the interior of the utility model Hold.

Claims

1. a kind of movement of falling object experimental provision, including several experiments bead (1), for loading and release experiment bead (1) release device, the detection device for acquire the experimental data generated when experiment bead (1) is fallen, for reception from releasing The reception device for the experiment bead (1) that device is fallen and the processor of Connection Release device, detection device and reception device are put, It is characterized by: the release device includes the release pipe (2a) for release experiment bead (1) being vertically arranged, the release The diameter of the inner diameter size and experiment bead (1) of managing (2a) matches, and is equipped at the bottom nozzle of the release pipe (2a) The side wall of the first valve (3) for stopping to test bead (1) whereabouts, the release pipe (2a) is equipped with ball hole and the goal Mouth, which is connected with, to be deposited bulb (2b), and the inner diameter size for depositing bulb (2b) and the diameter of experiment bead (1) match, described The bottom nozzle for depositing bulb (2b) is sloped down to be connect with ball hole, and the ball hole is located at the top of the first valve (3) simultaneously Against the first valve (3), the ball hole is equipped with for stopping to test bead (1) from bulb (2b) is deposited into release pipe (2a) Second valve (4), controller control the first valve (3) and the second valve (4) are alternately opened to discharge release device one by one It tests bead (1), the detection device includes airborne laser range finder (9) of the setting above release pipe (2a), the laser ranging Device (9) can emit laser beam into release pipe (2a) and fall in laser beam in experiment bead (1), be controlled by the controller Airborne laser range finder (9), which can detect that, tests bead (1) drop in different time points, the reception device is located at release dress The lower section the set and signal that can will receive experiment bead (1) be sent to controller.

2. movement of falling object experimental provision according to claim 1, it is characterised in that: first valve (3) or/and Second valve (4) includes casing (5) and movable core (5a) and static iron core (5b) in casing (5), the static iron core (5b) is arranged with the coil (5c) that can be powered, and one end of the movable core (5a), which is connected with, can be inserted into release pipe (2a) or score Backing pin (5d) in mouthful is equipped with spring (5e) between the other end and static iron core (5b) of the movable core (5a), makes the line (5c) to be enclosed to be powered, the static iron core (5b), which generates magnetic force, makes the direction movement of movable core (5a) stress and past static iron core (5b), Spring (5e) compression, the backing pin (5d) exit release pipe (2a) or ball hole at this time, and the experiment bead (1) can be free It falls or is entered in release pipe (2a) from bulb (2b) is deposited；Power off the coil (5c), the static iron core (5b) loses magnetic Power, the spring (5e) resets at this time, the movable core (5a) drives and stops experiment in backing pin (5d) insertion release pipe (2a) Bead (1), which is fallen or is inserted into ball hole, stops experiment bead (1) to enter in release pipe (2a) from bulb (2b) is deposited.

3. movement of falling object experimental provision according to claim 2, it is characterised in that: the reception device includes receiving Funnel (6a), connection reception funnel (6a) lead bulb (6b) and positioned at the collection box (6c) led below bulb (6b), it is described Bulb (6b) is led equipped with a photoelectric sensor, when the experiment bead (1) is by leading bulb (6b), the photoelectric sensor It generates detection signal and is transferred to controller.

4. movement of falling object experimental provision according to claim 3, it is characterised in that: the reception device is arranged one On a pedestal (7), the pedestal (7) is equipped with translucent cover (8), and the bottom nozzle of the reception device and release pipe (2a) is equal In translucent cover (8).

5. movement of falling object experimental provision according to claim 4, it is characterised in that: the lower part of the translucent cover (8) Stomata is offered on side wall.

6. movement of falling object experimental provision according to claim 5, it is characterised in that: the translucent cover (8) is upper and lower The cylindrical cover of both ends open.

7. movement of falling object experimental provision according to claim 6, it is characterised in that: the translucent cover (8) includes cross Section is in semiorbicular left side (8a) and right side (8b), one end of the left side (8a) and right side (8b) is hinged, The other end snaps connection.

8. movement of falling object experimental provision according to claim 7, it is characterised in that: the upper surface of the pedestal (7) Annular offers the slot of the bottom end insertion for translucent cover (8).

9. movement of falling object experimental provision described in any one of -8 according to claim 1, it is characterised in that: described to deposit ball The middle part bending of pipe (2b) makes its top nozzle vertically upward.

10. movement of falling object experimental provision according to claim 9, it is characterised in that: the top for depositing bulb (2b) End pipe mouth is connected with goal funnel (10).