CN113960855B

CN113960855B - Intelligent video teaching is with many key points trapping apparatus

Info

Publication number: CN113960855B
Application number: CN202111240990.2A
Authority: CN
Inventors: 宋苏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2023-03-28
Anticipated expiration: 2041-10-25
Also published as: CN113960855A

Abstract

The invention relates to the technical field of video recording, in particular to a multi-key-point capturing device for intelligent video teaching, which comprises a connecting plate, wherein the top surface of the connecting plate is connected with a sliding block in a sliding manner, the bottom surface of the sliding block is rotatably connected with a first gear through a rotating shaft, the bottom surface of the first gear is fixedly connected with an electric push rod, the bottom surface of the electric push rod is fixedly connected with a shooting device, the outer side wall of the shooting device is rotatably sleeved with a lens replacing cover, the outer side wall of the lens replacing cover is rotatably sleeved with a lantern ring, and the outer side wall of the lantern ring is embedded and fixed with a square telescopic rod. According to the invention, the transverse moving position of the electric push rod with the shooting equipment is realized by the left and right movement of the sliding block along the screw rod, the height of the shooting equipment is adjusted by the up and down movement of the output end of the electric push rod, the sliding rod and the sleeve are driven to rotate by the case II, the flexible switching of the lens body of the lens of the shooting equipment is realized, key points in teaching can be conveniently captured and shot, and the shooting effect can be favorably improved.

Description

Intelligent video teaching is with many key points trapping apparatus

Technical Field

The invention relates to the technical field of video recording, in particular to a multi-key-point capturing device for intelligent video teaching.

Background

The video teaching needs to record the teaching process of a teacher by using a shooting device, in order to be able to completely shoot and record the explanation content, the position of the shooting device is usually fixed, namely, the shooting device faces the middle position of a display board of a platform, the teacher sometimes walks to the left side of the display board for explanation in the teaching, sometimes walks to the right side of the display board for explanation, the teacher sometimes stops the explanation content on the left side of the display board, when the teacher explains on the right side, the teacher possibly stops the explanation content on the right side of the display board, therefore, the shooting mode of fixing the shooting device to the middle corresponding position of the display board in the existing shooting mode cannot obtain the best shooting angle, the learning of students is affected, and sometimes the teacher takes related teaching object for assisting teaching in hand, at the moment, the auxiliary teaching object and the teacher's hand generally need to be shot, the focal length of the shooting device needs to be frequently adjusted for detailed and clear shooting, the operation is cumbersome, and inconvenience is brought to the shooting work.

Disclosure of Invention

In order to overcome the above technical problems, the present invention provides a multi-key-point capturing device for intelligent video teaching, the sliding block which is connected with the screw rod in a screwing way moves left and right along the screw rod through the rotation of the motor with the screw rod, thereby leading the electric push rod to drive the shooting and recording equipment to move left and right synchronously, realizing the height adjustment of the shooting and recording equipment through the up-and-down movement of the output end of the electric push rod, thereby realizing flexible adjustment of the position of the shooting and recording equipment, being convenient for recording and recording videos at different positions, being beneficial to improving the shooting and recording effect, an extrusion wheel is sleeved on the outer side wall of the slide rod in a transmission way, a one-way bearing I is arranged between the extrusion wheel and the slide rod, a second gear is sleeved on the outer side wall of the sleeve in a transmission manner, a second one-way bearing is arranged between the second gear and the sleeve, when the second motor drives the sliding rod and the sleeve to rotate clockwise, the gear II drives the annular block to rotate under the action of the one-way bearing I and the one-way bearing II, so that the annular cover rotates to realize the replacement of the lens bodies with different focal lengths in the lens direction of the video equipment, at the moment, the extrusion wheel does not synchronously rotate along with the slide rod, the lens focal length of the video equipment can be conveniently and rapidly adjusted, the sliding rod and the sleeve are driven by the motor II to rotate anticlockwise, the gear II does not rotate along with the sleeve at the moment, the extrusion wheel rotates synchronously along with the sliding rod, because the position of the extrusion wheel deviating from the circle center is in transmission connection with the sliding rod, the extrusion wheel extrudes the rack, the rack is moved to the position of the gear along the gear 21274, the shape plate is meshed with the gear, when the screw rod drives the sliding block to move left and right, the gear I at the bottom of the sliding block drives the shooting and recording equipment to rotate in the annular cover through the electric push rod to adjust the angle, and rotate different angle camera lenses and all can correspond different lens bodies, conveniently catch the shooting to the key point in the teaching.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides an intelligence video teaching is with many key points trapping apparatus, includes the connecting plate, the top surface sliding connection of connecting plate has the sliding block, the underrun axis of rotation of sliding block rotates and is connected with gear one, the bottom surface fixedly connected with electric putter of gear one, electric putter's bottom surface fixedly connected with shoots with video-corder equipment, the lateral wall of shooting with video-corder equipment rotates and has cup jointed the lens and change the cover, the lateral wall that the cover was changed to the lens rotates and has cup jointed the lantern ring, the lateral wall embedding of lantern ring is fixed with square telescopic link, the top of square telescopic link runs through connecting plate and fixedly connected with machine case two, just machine case two and sliding block fixed connection, the inside fixedly connected with motor two of machine case two is connected with motor two, the output fixedly connected with slide bar of motor two, the lateral wall slip joint of slide bar has the sleeve pipe, the lateral wall transmission of slide bar has cup jointed the extrusion wheel, the lateral wall of extrusion wheel leans on by the rectangular frame with connecting plate bottom surface fixed connection, the drive lens bottom end transmission has cup jointed drive lens and has changed cover pivoted gear two, through the sliding block along the screw rod along controlling the left and right-handed over realization electric putter and has taken with video-corder equipment lateral shifting position, reciprocates through electric putter and realizes the regulation of the height of shooting with the drive equipment through electric putter, through two drive equipment and rotates, realizes the slide bar that the pivot the camera equipment that the camera lens body, and is favorable to carry on the teaching lens in the teaching lens body, and is favorable to the teaching effect of the teaching of the improvement of the key lens in a teaching lens.

Further, the method comprises the following steps: the lens is changed and is covered including rotating the annular cover that cup joints with the equipment of recording with video-corder, the lateral wall of annular cover is angle demountable installation such as annular has a plurality of lens bodies, and adjacent two the focus of lens body is different, the top surface fixedly connected with annular piece of annular cover, the annular cover of being convenient for rotate or the equipment of recording with video-corder rotates and can both adjust the lens body that the camera lens corresponds different, makes things convenient for the switching of lens body.

The method is further characterized in that: the inner ring of the annular block is fixedly connected with annular teeth which are in meshing transmission with the second gear, the top surface of the annular block is fixedly connected with a limiting ring, the bottom surface of the limiting ring is attached to the top surface of the second gear, the second gear drives the annular block to rotate so that the annular cover can rotate conveniently, and the limiting ring facilitates the second gear to be always meshed with the annular teeth.

The method is further characterized in that: the square telescopic rod comprises a square pipe fixedly connected with the second case, the inner side wall of the square pipe is slidably connected with a square rod, the outer side of the square pipe is fixedly connected with a connecting block, the connecting block is slidably inserted into the sleeve, and therefore the sleeve can stably move up and down along the sliding rod.

The method is further characterized in that: the rectangular frame comprises a v-21274shaped plate which is in sliding contact with the first gear, and a rack is connected to the open side of the v-shaped plate in a sliding and clamping manner and is convenient for meshing transmission with the first gear, so that the first gear drives the electric push rod to rotate for a certain angle.

Further, the method comprises the following steps: the gear is characterized in that a first one-way bearing is arranged between the extrusion wheel and the sliding rod, a second one-way bearing is arranged between the gear and the sleeve, and the position of the extrusion wheel, which is deviated from the circle center, is in transmission connection with the sliding rod, so that the extrusion wheel and the gear rotate asynchronously, and the position of the extrusion wheel, which is deviated from the circle center, is in transmission connection with the sliding rod, so that the extrusion wheel can extrude the rack to be meshed with the first gear.

Further, the method comprises the following steps: the outer side wall of the sliding rod is provided with a clamping groove, and the inner side wall of the sleeve is fixedly connected with a clamping block in sliding connection with the clamping groove, so that the sleeve can slide outside the sliding rod and can also synchronously rotate along with the sliding rod.

The method is further characterized in that: the connecting plate is characterized in that connecting seats are fixedly connected to two ends of the top surface of the connecting plate, a screw rod is rotatably connected between the two connecting seats, one end of the connecting plate is fixedly connected with a first case, a first motor is fixedly connected to the inside of the first case, and the output end of the first motor is in transmission connection with one end of the screw rod, so that the screw rod drives the sliding block to move.

The method is further characterized in that: the connecting plate bottom surface fixedly connected with guide frame, the inside both sides of guide frame are seted up with the recess of square telescopic link slip joint to make the smooth side-to-side movement of square telescopic link.

Further, the method comprises the following steps: the top surface of connecting plate is seted up with axis of rotation sliding connection's spout one, the top surface of connecting plate is seted up with slide bar sliding connection's spout two, the top surface of connecting plate is seted up with square telescopic link sliding connection's spout three, be convenient for axis of rotation, slide bar and square telescopic link run through the connecting plate and slide along the connecting plate.

The invention has the beneficial effects that:

1. the sliding block which is connected with the screw rod in a screwing mode moves left and right along the screw rod through the rotation of the motor which drives the screw rod, so that the electric push rod drives the shooting equipment to move left and right synchronously, the height of the shooting equipment is adjusted through the up-and-down movement of the output end of the electric push rod, the position of the shooting equipment is flexibly adjusted, videos are conveniently recorded and shot at different positions, and the shooting effect is improved;

2. when the motor II drives the sliding rod and the sleeve to rotate clockwise, the gear II drives the annular block to rotate under the action of the one-way bearing I and the one-way bearing II, so that the annular cover rotates to replace lens bodies with different focal lengths in the lens direction of the video equipment, and the extrusion wheel does not rotate synchronously with the sliding rod at the moment, thereby being convenient for quickly adjusting the focal length of the lens of the video equipment;

3. the sliding rod and the sleeve are driven to rotate anticlockwise by the motor II, the gear II does not rotate along the sleeve at the moment, the extrusion wheel rotates synchronously along the sliding rod, and the extrusion wheel is in transmission connection with the sliding rod at a position deviated from the circle center, so that the extrusion wheel extrudes the rack, the rack is along with 21274, the shape plate moves to the gear I to be meshed with the gear I, when the sliding block is driven by the screw rod to move left and right, the gear I at the bottom of the sliding block drives the shooting equipment to rotate for adjusting angles in the annular cover through the electric push rod, and lenses rotating for different angles can correspond to different lens bodies, so that key points in teaching can be conveniently captured and shot.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIGS. 1-2 are schematic views of the overall structure of the present invention from different perspectives;

FIG. 3 is a schematic diagram of a connecting plate structure according to the present invention;

FIG. 4 is a schematic view of a rectangular frame structure according to the present invention;

FIG. 5 is a schematic view of the bottom structure of the slider in the present invention;

FIG. 6 is a schematic view of the bottom structure of the second housing of the present invention;

FIG. 7 is a schematic view of the structure of the ring and the square telescopic rod of the present invention;

fig. 8 is a schematic perspective view of the lens replacement cover according to the present invention.

In the figure: 100. a connecting plate; 110. a screw; 120. a first case; 130. a guide frame; 140. a first sliding chute; 150. a second chute; 160. a third chute; 200. a slider; 210. a first gear; 211. an electric push rod; 300. a video recording device; 400. a lens replacement cover; 410. an annular cover; 411. a lens body; 420. an annular block; 421. a limiting ring; 500. a collar; 510. a square telescopic rod; 511. connecting blocks; 600. a second case; 610. a slide bar; 611. an extrusion wheel; 620. a sleeve; 621. a second gear; 700. a rectangular frame; 710. \ 21274; 720. a rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, a multi-key-point capturing device for intelligent video teaching comprises a connecting plate 100, a sliding block 200 is slidably connected to the top surface of the connecting plate 100, a first gear 210 is rotatably connected to the bottom surface of the sliding block 200 through a rotating shaft, an electric push rod 211 is fixedly connected to the bottom surface of the first gear 210, a shooting device 300 is fixedly connected to the bottom surface of the electric push rod 211, a lens replacing cover 400 is rotatably sleeved on the outer side wall of the shooting device 300, a lantern ring 500 is rotatably sleeved on the outer side wall of the lens replacing cover 400, a square telescopic rod 510 is embedded and fixed on the outer side wall of the lantern ring 500, the top end of the square telescopic rod 510 penetrates through the connecting plate 100 and is fixedly connected to a second case 600, the second case 600 is fixedly connected to the sliding block 200, a second motor is fixedly connected to the inside of the second case 600, the output end of the second motor is fixedly connected with a sliding rod 610, the outer side wall of the sliding rod 610 is slidably clamped with a sleeve 620, the outer side wall of the sliding rod 610 is in transmission sleeved connection with an extrusion wheel 611, the outer side wall of the extrusion wheel 611 is attached to a rectangular frame 700 fixedly connected with the bottom surface of the connecting plate 100, the bottom end of the sleeve 620 is in transmission sleeved connection with a second gear 621 for driving the lens replacing cover 400 to rotate, the sliding block 200 moves left and right along the screw 110 to achieve the transverse movement position of the electric push rod 211 with the video recording device 300, the adjustment of the height of the video recording device 300 is achieved through the up-and-down movement of the output end of the electric push rod 211, the sliding rod 610 and the sleeve 620 are driven to rotate through the second case 600, the flexible switching of the lens body 411 of the video recording device 300 is achieved, the key points in the teaching can be conveniently captured and shot, and the video recording effect can be improved.

The lens replacing cover 400 comprises an annular cover 410 which is rotatably sleeved with the video recording equipment 300, the outer side wall of the annular cover 410 is annular, a plurality of lens bodies 411 are detachably mounted at equal angles, the focal lengths of two adjacent lens bodies 411 are different, and an annular block 420 is fixedly connected to the top surface of the annular cover 410, so that the lens can be adjusted to correspond to different lens bodies 411 when the annular cover 410 rotates or the video recording equipment 300 rotates, and the lens bodies 411 can be conveniently switched; the inner ring of the annular block 420 is fixedly connected with annular teeth which are in meshing transmission with the second gear 621, the top surface of the annular block 420 is fixedly connected with a limiting ring 421, the bottom surface of the limiting ring 421 is attached to the top surface of the second gear 621, the second gear 621 drives the annular block 420 to rotate to enable the annular cover 410 to rotate conveniently, and the limiting ring 421 enables the second gear 621 to be always meshed with the annular teeth.

The square telescopic rod 510 comprises a square pipe fixedly connected with the second case 600, the inner side wall of the square pipe is connected with a square rod in a sliding mode, the outer side of the square pipe is fixedly connected with a connecting block 511, and the connecting block 511 is connected with the sleeve 620 in a sliding and inserting mode, so that the sleeve 620 can stably move up and down along the sliding rod 610; the rectangular frame 700 comprises a v-shaped plate 710, a v-shaped plate 21274, a rack 720 and a rectangular frame 700, wherein the v-shaped plate 710, the v-shaped plate 21274and the rectangular frame 700 are in sliding contact with the first gear 210; a one-way bearing I is arranged between the extrusion wheel 611 and the sliding rod 610, a one-way bearing II is arranged between the gear II 621 and the sleeve 620, and the position of the extrusion wheel 611, which is deviated from the center of the circle, is in transmission connection with the sliding rod 610, so that the extrusion wheel 611 and the gear II 621 rotate asynchronously, and the position of the extrusion wheel 611, which is deviated from the center of the circle, is in transmission connection with the sliding rod 610, so that the extrusion wheel 611 extrudes the rack 720 to be meshed with the gear I210.

The outer side wall of the sliding rod 610 is provided with a clamping groove, and the inner side wall of the sleeve 620 is fixedly connected with a clamping block in sliding connection with the clamping groove, so that the sleeve 620 can slide on the outer side of the sliding rod 610 and can also synchronously rotate along with the sliding rod 610; the two ends of the top surface of the connecting plate 100 are fixedly connected with connecting seats, a screw 110 is rotatably connected between the two connecting seats, one end of the connecting plate 100 is fixedly connected with a first case 120, the inside of the first case 120 is fixedly connected with a first motor, and the output end of the first motor is in transmission connection with one end of the screw 110, so that the screw 110 drives the sliding block 200 to move.

The bottom surface of the connecting plate 100 is fixedly connected with a guide frame 130, and two sides inside the guide frame 130 are provided with grooves which are in sliding clamping connection with the square telescopic rod 510, so that the square telescopic rod 510 can move left and right stably; the top surface of the connecting plate 100 is provided with a first sliding groove 140 slidably connected with the rotating shaft, the top surface of the connecting plate 100 is provided with a second sliding groove 150 slidably connected with the sliding rod 610, and the top surface of the connecting plate 100 is provided with a third sliding groove 160 slidably connected with the square telescopic rod 510, so that the rotating shaft, the sliding rod 610 and the square telescopic rod 510 can conveniently penetrate through the connecting plate 100 and slide along the connecting plate 100.

The working principle is as follows: when the device is used, the device is fixed on the wall top in front of a platform display board through L-shaped plates at four corners of the top surface of a connecting plate 100, the output end of an electric push rod 211 moves up and down, so that a shooting device 300 and a lens replacing cover 400 synchronously move up and down, the shooting device 300 is adjusted to a proper position, in the process of moving up and down the shooting device 300, a slide rod 610 slides in a sleeve 620, a square rod slides in a square tube, a first motor is started, the first motor drives a screw rod 110 to rotate, so that a slide block 200 which is rotatably connected with the screw rod 110 moves left and right along the screw rod 110, a first gear 210 at the bottom of the slide block 200 slides along the inner side wall of a v-21274plate 710, and the first gear 210 drives the shooting device 300 to move left and right through the electric push rod 211, so that the position of the shooting device 300 is adjusted;

when the focal length of the lens of the camcorder 300 needs to be adjusted, the second motor drives the sliding rod 610 and the sleeve 620 to rotate clockwise, the second gear 621 drives the annular block 420 to rotate under the action of the first one-way bearing and the second one-way bearing, so that the annular cover 410 rotates synchronously to achieve replacement of the lens body 411 with different focal lengths in the lens direction of the camcorder 300, at this time, the pressing wheel 611 does not rotate synchronously with the sliding rod 610 (the first one-way bearing is arranged between the pressing wheel 611 and the sliding rod 610, the second one-way bearing is arranged between the second gear 621 and the sleeve 620, the two one-way bearings can allow different rotating directions, so that only one of the pressing wheel 611 and the second gear 621 can rotate when the sliding rod 610 and the sleeve 620 rotate in different directions, when the second motor drives the sliding rod 610 and the sleeve 620 to rotate reversely, the second gear 621 does not rotate with the sleeve 620, the pressing wheel 611 rotates synchronously with the sliding rod 610, the position of the pressing wheel 611 deviates from the sliding rod 610 is in transmission connection with the sliding rod 610, so that the pressing wheel 611 presses the rack 720 and the sliding block 200 moves to the left and right of the gear 210 and right, and left and right, and right movement of the sliding rod 110 is convenient for adjustment of the sliding block 200, and the sliding block 410, and the teaching device can capture images in the lens body with different angles of the sliding block 410.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.

Claims

1. The utility model provides a many key points trapping apparatus for intelligent video teaching, includes connecting plate (100), its characterized in that, the top surface sliding connection of connecting plate (100) has sliding block (200), the bottom surface of sliding block (200) is rotated through the axis of rotation and is connected with gear (210), the bottom surface fixedly connected with electric putter (211) of gear (210), the bottom surface fixedly connected with of electric putter (211) shoots with video-corder equipment (300), the lateral wall of shooting with video-corder equipment (300) rotates to cup joint lens and changes cover (400), the lateral wall of lens change cover (400) rotates to cup joint lantern ring (500), the lateral wall embedding of lantern ring (500) is fixed with square telescopic link (510), the top of square telescopic link (510) runs through connecting plate (100) and fixedly connected with machine case two (600), just machine case two (600) and sliding block (200) fixed connection, the inside fixedly connected with motor two of machine case two (600), the output end fixedly connected with slide bar (610) of motor two, the lateral wall slip joint of slide bar (610) has sleeve pipe (620), extrusion wheel (611) has been cup jointed in the lateral wall transmission of slide bar (610), the lateral wall of extrusion wheel (611) is pasted and is leaned on rectangular frame (700) with connecting plate (100) bottom surface fixed connection, the bottom transmission of sleeve pipe (620) is cup jointed the drive lens and is changed cover (400) pivoted gear two (600) (621) A one-way bearing I is arranged between the extrusion wheel (611) and the sliding rod (610), a one-way bearing II is arranged between the gear II (621) and the sleeve (620), and the position of the extrusion wheel (611) deviating from the center of the circle is in transmission connection with the sliding rod (610);

the lens replacing cover (400) comprises an annular cover (410) rotatably sleeved with a video recording device (300), the outer side wall of the annular cover (410) is annularly and detachably provided with a plurality of lens bodies (411) at equal angles, the focal lengths of two adjacent lens bodies (411) are different, the top surface of the annular cover (410) is fixedly connected with an annular block (420), the inner ring of the annular block (420) is fixedly connected with annular teeth in meshing transmission with a second gear (621), the top surface of the annular block (420) is fixedly connected with a limiting ring (421), the bottom surface of the limiting ring (421) is attached to the top surface of the second gear (621), the rectangular frame (700) comprises a v-21274that is attached to the first gear (210) in a sliding manner, and a rack (720) is slidably clamped on the open side of the v-21274plate (710).

2. The multi-key-point capturing device for intelligent video teaching of claim 1, wherein the square telescopic rod (510) comprises a square tube fixedly connected with the second case (600), the inner side wall of the square tube is slidably connected with the square rod, the outer side of the square tube is fixedly connected with a connecting block (511), and the connecting block (511) is slidably connected with a sleeve (620).

3. The multi-key-point capturing device for intelligent video teaching as claimed in claim 1, wherein a clamping groove is formed on an outer side wall of the sliding rod (610), and a clamping block slidably connected with the clamping groove is fixedly connected to an inner side wall of the sleeve (620).

4. The multi-key-point capturing device for intelligent video teaching according to claim 1, wherein two ends of the top surface of the connecting plate (100) are fixedly connected with connecting seats, a screw (110) is rotatably connected between the two connecting seats, one end of the connecting plate (100) is fixedly connected with a first case (120), a first motor is fixedly connected inside the first case (120), and an output end of the first motor is in transmission connection with one end of the screw (110).

5. The multi-key-point capturing device for the intelligent video teaching as claimed in claim 1, wherein a guide frame (130) is fixedly connected to the bottom surface of the connecting plate (100), and grooves for slidably clamping with the square telescopic rods (510) are formed in two sides of the interior of the guide frame (130).

6. The multi-key-point capturing device for intelligent video teaching as claimed in claim 1, wherein the top surface of the connecting plate (100) is provided with a first sliding groove (140) slidably connected to the rotating shaft, the top surface of the connecting plate (100) is provided with a second sliding groove (150) slidably connected to the sliding rod (610), and the top surface of the connecting plate (100) is provided with a third sliding groove (160) slidably connected to the square telescopic rod (510).