阅读说明：本技术 一种基于微电子技术的多媒体教学设备 (Multimedia teaching equipment based on microelectronic technology ) 是由 文久飞 于 2021-07-13 设计创作，主要内容包括：本发明公开了一种基于微电子技术的多媒体教学设备,涉及教学设备技术领域。本发明包括教桌,所述教桌上设有摄像组件,所述教桌包括矩形框、抽屉和底板,所述矩形框底面固定有若干第一滑杆,所述矩形框上表面固定有两组卡块,两组所述卡块之间通过螺钉固定有防护板,所述底板位于矩形框下方,所述底板上表面对应若干第一滑杆位置处均固定有第一圆筒,所述第一滑杆一端位于对应的第一圆筒内且第一滑杆与第一圆筒滑动配合,所述底板上表面固定有第一液压缸,所述第一液压缸的输出端与矩形框底部固定,所述矩形框上表面设有控制面板。本发明通过摄像组件的设置,使得本装置能够灵活地调节摄像头模块,进而从各个角度对教学细节进行记录。(The invention discloses a multimedia teaching device based on a microelectronic technology, and relates to the technical field of teaching devices. The teaching table comprises a teaching table body, wherein a camera shooting assembly is arranged on the teaching table body, the teaching table body comprises a rectangular frame, a drawer and a bottom plate, a plurality of first sliding rods are fixed on the bottom surface of the rectangular frame body, two groups of clamping blocks are fixed on the upper surface of the rectangular frame body, a protection plate is fixed between the two groups of clamping blocks through screws, the bottom plate is located below the rectangular frame body, first cylinders are fixed on the positions, corresponding to the first sliding rods, of the upper surface of the bottom plate, one ends of the first sliding rods are located in the corresponding first cylinders, the first sliding rods are in sliding fit with the first cylinders, first hydraulic cylinders are fixed on the upper surface of the bottom plate, the output ends of the first hydraulic cylinders are fixed to the bottom of the rectangular frame body, and a control panel is arranged on the upper surface of the rectangular frame body. According to the invention, through the arrangement of the camera assembly, the device can flexibly adjust the camera module, so that teaching details can be recorded from various angles.)

1. A multimedia teaching device based on microelectronic technology is characterized in that: the teaching desk comprises a teaching desk (1), wherein a camera assembly (2) is arranged on the teaching desk (1);

the teaching desk (1) comprises a rectangular frame (101), a drawer (104) and a bottom plate (117), wherein a plurality of first sliding rods (102) are fixed on the bottom surface of the rectangular frame (101), the first sliding rods (102) are rectangular arrays, the drawer (104) is positioned in the rectangular frame (101), a partition plate (106) and a partition plate (106) are fixed in the drawer (104) to equally divide the interior of the drawer (104) into two storage cavities, two groups of clamping blocks (114) and two groups of clamping blocks (114) are symmetrically arranged on the upper surface of the rectangular frame (101), a protection plate (115) is fixed between the two groups of clamping blocks (114) through screws, the bottom plate (117) is positioned below the rectangular frame (101), first cylinders (118) are fixed on the upper surface of the bottom plate (117) corresponding to the positions of the first sliding rods (102), one ends of the first sliding rods (102) are positioned in the corresponding first cylinders (118), and the first sliding rods (102) are in sliding fit with the first cylinders (118), a first hydraulic cylinder (119) is fixed on the upper surface of the bottom plate (117), the output end of the first hydraulic cylinder (119) is fixed with the bottom of the rectangular frame (101), and a control panel (124) is arranged on the upper surface of the rectangular frame (101);

the camera shooting assembly (2) comprises a second hydraulic cylinder (201), a squeezing block (203), a first round rod (208) and a third round rod (218), a U-shaped block (202) is fixed at the bottom end of the second hydraulic cylinder (201), the squeezing block (203) is located in the U-shaped block (202), a second sliding rod (205) is fixed on one inner wall of the U-shaped block (202), the other end of the second sliding rod (205) penetrates through one surface of the squeezing block (203), the second sliding rod (205) is in sliding fit with the squeezing block (203), a round block (207) is fixed on one side of the U-shaped block (202), one end of the first round rod (208) sequentially penetrates through the round block (207), the U-shaped block (202) and the squeezing block (203), the first round rod (208) is in threaded connection with the round block (207), the first round rod (208) is in rotating connection with the squeezing block (203), and a first knob (209) is fixed at the other end of the first round rod (208), the protection plate (115) is positioned between the U-shaped block (202) and the extrusion block (203), the output end of the second hydraulic cylinder (201) is rotatably connected with a first rotary drum (215), a second round bar (216) is fixed on the outer wall of the first rotary drum (215), a second rotary drum (217) is fixed at the other end of the second round bar (216), a fourth stop block (219) is fixed on the peripheral side surface of the third round bar (218), one end of the third round bar (218) penetrates through the second rotary drum (217), the fourth stop block (219) is attached to the second rotary drum (217), the second rotary drum (217) is fixed to the third round bar (218) through a fastener (220), an installation block (221) is fixed at the bottom end of the third round bar (218), a third abdicating groove (222) is formed in the side surface of the installation block (221), a second accommodating groove (223) is formed in the inner top surface of the third abdicating groove (222), the utility model discloses a camera module, including first holding tank (223), second holding tank (223), third abdicating groove (222), camera module (224) are connected with camera module (224) through the pivot rotation in the groove of third abdicating (222), tooth's socket (225) has been seted up to camera module (224) outer wall, the third abdicating groove (222) internal rotation is connected with fourth pole (226), fourth pole (226) week side is fixed with gear (227) and tooth's socket (225) meshing, fourth pole (226) one end is run through installation piece (221) and is fixed with second knob (229), second holding tank (223) inner wall is connected with light (230) through the pivot rotation.

2. The microelectronic-technology-based multimedia teaching device according to claim 1, characterized in that a first stop (103) is fixed to the bottom end of the first slide (102), the first stop (103) being located in the corresponding first cylinder (118).

3. The multimedia teaching device based on the microelectronic technology as claimed in claim 1, wherein a hand-held groove (105) is formed on one side of the drawer (104), a plurality of wear blocks (109) are fixed on the bottom surface of the drawer (104), and the wear blocks (109) are attached to the inner wall of the rectangular frame (101).

4. The multimedia teaching equipment based on the microelectronic technology as claimed in claim 1, wherein a waste storage box (107) is disposed in the storage cavity, a first handle (108) is fixed on an opposite inner wall of the waste storage box (107), a first abdicating groove (110) is formed in the upper surface of the rectangular frame (101) corresponding to the position of the waste storage box (107), a flip cover (112) is rotatably connected in the first abdicating groove (110) through a rotating shaft, two second stoppers (111) are symmetrically fixed on an inner wall of the first abdicating groove (110), the second stoppers (111) are attached to the flip cover (112), and a second handle (113) is fixed on the upper surface of the flip cover (112).

5. The multimedia teaching device based on microelectronics technologies, as claimed in claim 1, wherein a handle (116) is fixed on one opposite side of said rectangular frame (101), a plurality of second cylinders (122) are fixed on the lower surface of said bottom plate (117), and universal wheels (123) are rotatably connected to the bottom ends of said second cylinders (122).

6. The multimedia teaching device based on microelectronic technology as claimed in claim 1, wherein the bottom plate (117) has a second recess (120) formed on its upper surface, and a rib (121) is fixed at the edge of the second recess (120).

7. The multimedia teaching device based on microelectronic technology as claimed in claim 1, characterized in that the extrusion block (203) has a slot (204) formed on one side thereof, the second sliding bar (205) has another end fixed with a third stopper (206) and the third stopper (206) is located in the slot (204), the first round bar (208) has one end fixed with a first stopper (210) and the first stopper (210) is located in the extrusion block (203).

8. The multimedia teaching device based on the microelectronic technology as claimed in claim 1, wherein a plurality of first receiving grooves (211) are formed in an inner wall of the U-shaped block (202) and one side of the extrusion block (203), a wheel (212) is rotatably connected in the first receiving groove (211) through a rotating shaft, and a rubber ring (213) is arranged on the wheel (212).

9. The multimedia teaching apparatus based on microelectronic technology as claimed in claim 1, characterized in that two second stoppers (214) are fixed to the output end of the second hydraulic cylinder (201) and the two second stoppers (214) are respectively located at two sides of the first drum (215), two third stoppers (228) are fixed to the peripheral side of the fourth round bar (226), one third stopper (228) is located in the third abdicating groove (222) and the other third stopper (228) is located at one side of the mounting block (221).

Technical Field

The invention belongs to the technical field of teaching equipment, and particularly relates to multimedia teaching equipment based on a microelectronic technology.

Background

The microelectronic technology is a high and new electronic technology based on various semiconductor devices with integrated circuits as the core, and is characterized by small volume, light weight, high reliability and fast working speed, the microelectronic technology has great influence on the information age, and is mainly used for culturing professional theoretical knowledge and electronic technology basic knowledge with solid semiconductor materials, devices, processes, integrated circuit principles, designs and the like, and mainly engaged in the semiconductor manufacturing industries such as semiconductor integrated circuit chip manufacturing, testing, packaging, layout design, quality management, production management, equipment maintenance and the like, first line engineering technicians and advanced technical workers urgently needed by the semiconductor manufacturing industry, the profession takes the practical ability of student semiconductor manufacturing as the first, and strengthens the professional basic knowledge of student electronic technology, computers, equipment maintenance and the like according to the characteristic of equipment automation of the semiconductor manufacturing industry, make the student have very strong work adaptability and great professional development ability, at current teaching in-process, need show through whole operation flow, be convenient for the student have more clearly to know whole flow, this just needs teaching table and photography equipment cooperation to use, and current photography equipment has the inconvenient problem of regulation when using, can't follow the angle of needs and take notes teaching process for the student can't master main points wherein, has reduced the teaching quality.

In view of the above, the present invention provides a multimedia teaching apparatus based on microelectronic technology to solve the above problems.

Disclosure of Invention

The invention aims to provide a multimedia teaching device based on a microelectronic technology, which can flexibly adjust a camera module through the arrangement of a camera component, so as to record teaching details from various angles, and solve the problem that the camera in the existing teaching device is inconvenient to adjust.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a multimedia teaching device based on microelectronic technology, which comprises a teaching table, wherein a camera shooting assembly is arranged on the teaching table;

the teaching desk comprises a rectangular frame, a drawer and a bottom plate, wherein a plurality of first sliding rods are fixed on the bottom surface of the rectangular frame and are in a rectangular array, the drawer is positioned in the rectangular frame, a partition plate is fixed in the drawer and divides the interior of the drawer into two storage cavities in equal parts, two groups of clamping blocks are fixed on the upper surface of the rectangular frame and are symmetrically arranged, a protection plate is fixed between the two groups of clamping blocks through screws, the bottom plate is positioned below the rectangular frame, first cylinders are fixed on the upper surface of the bottom plate at positions corresponding to the first sliding rods, one end of each first sliding rod is positioned in the corresponding first cylinder, the first sliding rod is in sliding fit with the first cylinder, a first hydraulic cylinder is fixed on the upper surface of the bottom plate, the output end of the first hydraulic cylinder is fixed with the bottom of the rectangular frame, and a control panel is arranged on the upper surface of the rectangular frame;

the camera shooting assembly comprises a second hydraulic cylinder, an extrusion block, a first round rod and a third round rod, a U-shaped block is fixed at the bottom end of the second hydraulic cylinder, the extrusion block is positioned in the U-shaped block, a second slide rod is fixed on one inner wall of the U-shaped block, the other end of the second slide rod penetrates through one surface of the extrusion block, the second slide rod is in sliding fit with the extrusion block, a round block is fixed on one side of the U-shaped block, one end of the first round rod sequentially penetrates through the round block, the U-shaped block and the extrusion block, the first round rod is in threaded connection with the round block, the first round rod is in rotational connection with the extrusion block, a first knob is fixed at the other end of the first round rod, a protection plate is positioned between the U-shaped block and the extrusion block, a first rotary drum is rotationally connected at the output end of the second hydraulic cylinder, a second round rod is fixed on the outer wall of the first rotary drum, a second rotary drum is fixed at the other end of the second round rod, the utility model discloses a take-up device, including first round bar, second rotary drum, first dog, second dog and second rotary drum, third round bar week side is fixed with the fourth dog, third round bar one end passes second rotary drum and fourth dog and the laminating of second rotary drum, it is fixed through the fastener between second rotary drum and the third round bar, third round bar bottom end is fixed with the installation piece, the third groove of stepping down has been seted up to installation piece side, the second holding tank has been seted up to the inslot top surface of stepping down of third, the inslot of stepping down of third rotates through the pivot and is connected with the camera module, the tooth's socket has been seted up to camera module outer wall, the inslot internal rotation of stepping down of third is connected with the fourth round bar, fourth round bar week side is fixed with gear and tooth's socket meshing, fourth round bar one end runs through the installation piece and is fixed with the second knob, second holding tank inner wall rotates through the pivot and is connected with the light.

Preferably, a first stop block is fixed at the bottom end of the first sliding rod and is positioned in the corresponding first cylinder.

Preferably, a hand holding groove is formed in one side of the drawer, and a plurality of anti-abrasion blocks are fixed to the bottom surface of the drawer and attached to the inner wall of the rectangular frame.

Preferably, one be equipped with the waste material receiver in the storage chamber, a relative inner wall of waste material receiver all is fixed with first handle, the rectangle frame upper surface has seted up first groove of stepping down to corresponding waste material receiver position department, first inslot of stepping down is rotated through the pivot and is connected with flip, an inner wall symmetry in first groove of stepping down is fixed with two second stoppers and second stopper and the laminating of flip, flip upper surface is fixed with the second handle.

Preferably, a handle is fixed on one opposite side face of the rectangular frame, a plurality of second cylinders are fixed on the lower surface of the bottom plate, and universal wheels are rotatably connected to the bottom ends of the second cylinders.

Preferably, the upper surface of the bottom plate is provided with a second yielding groove, and the edge of the second yielding groove is fixed with a reinforcing rib.

Preferably, a sliding groove is formed in one side of the extrusion block, a third stop block is fixed to the other end of the second sliding rod and located in the sliding groove, and a first limit block is fixed to one end of the first round rod and located in the extrusion block.

Preferably, a plurality of first holding tanks have all been seted up to an inner wall of U-shaped piece and extrusion piece one side, rotate through the pivot in the first holding tank and be connected with the wheel, be equipped with the rubber circle on the wheel.

Preferably, the output of second pneumatic cylinder is fixed with two second stoppers and two second stoppers are located first cylinder both sides respectively, fourth round bar week side is fixed with two third stoppers, one the third stopper is located the third groove of stepping down and another the third stopper is located installation piece one side.

The invention has the following beneficial effects:

1. through the arrangement of the camera module, a user can rotate the first knob to enable the extrusion block to slide along the second sliding rod under the action of the first round rod, so that the fixation of the camera module is released, then the user can hold the second hydraulic cylinder by hand to enable the camera module to slide along the protection plate, the wheels cling to the surface of the protection plate in the process of sliding the camera module, the camera module is convenient to move, then the user can control the second hydraulic cylinder to operate through the control panel, so that the purpose of adjusting the height of the camera module is achieved, next the user can respectively rotate the second round rod and the third round rod to adjust the position of the camera module, in addition, the user can drive the gear to rotate through rotating the second knob, under the combined action of the gear and the tooth grooves, the camera module rotates, so that the position of the angle of the camera module is adjusted, the orientation of the camera module can be adjusted freely by matching the three, so that the teaching key points can be recorded in detail, and the teaching efficiency is improved.

2. According to the invention, through the arrangement of the control panel and the illuminating lamp, a user can watch the shot video in real time through the display screen on the control panel, so that the camera module can be adjusted in time, the efficiency of adjusting the camera module is improved, meanwhile, the user can start the illuminating lamp through the control panel, the purpose of improving the brightness is achieved, and the quality of the shot video is ensured.

3. According to the teaching device, due to the arrangement of the teaching table, the device is more convenient to move under the auxiliary action of the universal wheels, the height of the rectangular frame can be adjusted through the first hydraulic cylinder, and therefore teachers with different heights can conveniently use the teaching device.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a multimedia teaching apparatus based on microelectronic technology.

FIG. 2 is a schematic view of the teaching table of the present invention.

FIG. 3 is a schematic structural diagram of the rectangular frame and the first sliding rod when they are connected.

Fig. 4 is an enlarged view of a portion a of fig. 3 according to the present invention.

Fig. 5 is a schematic structural diagram of the flip cover of the present invention.

Fig. 6 is a schematic view showing a structure of the present invention when the drawer is connected to the waste storage cassette.

FIG. 7 is a schematic view of another angle of the structure of FIG. 6 according to the present invention.

Fig. 8 is a schematic structural diagram of the camera module according to the present invention.

Fig. 9 is a schematic view showing the structure of the U-shaped block, the pressing block, the first round bar and the wheel according to the present invention when they are coupled.

Fig. 10 is a cross-sectional view of fig. 9 of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a teaching desk; 101. a rectangular frame; 102. a first slide bar; 103. a first stopper; 104. a drawer; 105. holding the groove; 106. a partition plate; 107. a waste storage box; 108. a first handle; 109. an anti-abrasion block; 110. a first abdicating groove; 111. a second stopper; 112. a cover is turned; 113. a second handle; 114. a clamping block; 115. a protection plate; 116. a handle; 117. a base plate; 118. a first cylinder; 119. a first hydraulic cylinder; 120. a second abdicating groove; 121. reinforcing ribs; 122. a second cylinder; 123. a universal wheel; 124. a control panel; 2. a camera assembly; 201. a second hydraulic cylinder; 202. a U-shaped block; 203. extruding the block; 204. a chute; 205. a second slide bar; 206. a third stopper; 207. a circular block; 208. a first round bar; 209. a first knob; 210. a first stopper; 211. a first accommodating groove; 212. a wheel; 213. a rubber ring; 214. a second limiting block; 215. a first rotating drum; 216. a second round bar; 217. a second rotating drum; 218. a third round bar; 219. a fourth stopper; 220. a fastener; 221. mounting blocks; 222. a third abdicating groove; 223. a second accommodating groove; 224. a camera module; 225. a tooth socket; 226. a fourth round bar; 227. a gear; 228. a third limiting block; 229. a second knob; 230. an illuminating lamp.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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. 1-10, the present invention is a multimedia teaching apparatus based on microelectronic technology, including a teaching table 1, wherein a camera assembly 2 is disposed on the teaching table 1;

the teaching desk 1 comprises a rectangular frame 101, a drawer 104 and a bottom plate 117, wherein a plurality of first sliding rods 102 are fixed on the bottom surface of the rectangular frame 101, the first sliding rods 102 are in a rectangular array, the drawer 104 is positioned in the rectangular frame 101, a partition plate 106 is fixed in the drawer 104, the partition plate 106 equally divides the interior of the drawer 104 into two storage cavities, two groups of clamping blocks 114 are fixed on the upper surface of the rectangular frame 101, the two groups of clamping blocks 114 are symmetrically arranged, a protection plate 115 is fixed between the two groups of clamping blocks 114 through screws, the bottom plate 117 is positioned below the rectangular frame 101, first cylinders 118 are fixed on the upper surface of the bottom plate 117 at positions corresponding to the first sliding rods 102, one end of each first sliding rod 102 is positioned in the corresponding first cylinder 118, the first sliding rods 102 are in sliding fit with the first cylinders 118, a first hydraulic cylinder 119 is fixed on the upper surface of the bottom plate 117, and the output end of the first hydraulic cylinder 119 is fixed with the bottom of the rectangular frame 101, the upper surface of the rectangular frame 101 is provided with a control panel 124;

the camera shooting assembly 2 comprises a second hydraulic cylinder 201, a squeezing block 203, a first round rod 208 and a third round rod 218, wherein a U-shaped block 202 is fixed at the bottom end of the second hydraulic cylinder 201, the squeezing block 203 is positioned in the U-shaped block 202, a second sliding rod 205 is fixed on one inner wall of the U-shaped block 202, the other end of the second sliding rod 205 penetrates through one surface of the squeezing block 203, the second sliding rod 205 is in sliding fit with the squeezing block 203, a round block 207 is fixed on one side of the U-shaped block 202, one end of the first round rod 208 sequentially penetrates through the round block 207, the U-shaped block 202 and the squeezing block 203, the first round rod 208 is in threaded connection with the round block 207, the first round rod 208 is in rotational connection with the squeezing block 203, a first knob 209 is fixed at the other end of the first round rod 208, the protection plate 115 is positioned between the U-shaped block 202 and the squeezing block 203, a first rotating cylinder 215 is rotationally connected at the output end of the second hydraulic cylinder 201, a second round bar 216 is fixed on the outer wall of the first barrel 215, a second barrel 217 is fixed at the other end of the second round bar 216, a fourth stopper 219 is fixed on the peripheral side surface of the third round bar 218, one end of the third round bar 218 passes through the second barrel 217 and the fourth stopper 219 is attached to the second barrel 217, the second barrel 217 and the third round bar 218 are fixed by a fastener 220, a mounting block 221 is fixed at the bottom end of the third round bar 218, a third abdicating groove 222 is formed on the side surface of the mounting block 221, a second accommodating groove 223 is formed on the inner top surface of the third abdicating groove 222, a camera module 224 is rotatably connected to the third abdicating groove 222 through a rotating shaft, a tooth groove 225 is formed on the outer wall of the camera module 224, a fourth round bar 226 is rotatably connected to the third abdicating groove 222, a gear 227 is fixed on the peripheral side surface of the fourth round bar 226 and the gear 227 is engaged with the tooth groove 225, one end of the fourth round bar 226 passes through the mounting block 221 and a second knob 229 is fixed, the inner wall of the second receiving groove 223 is rotatably connected with an illuminating lamp 230 through a rotating shaft.

As further shown in fig. 2 and 3, a first stopper 103 is fixed to the bottom end of the first sliding rod 102, and the first stopper 103 is located in the corresponding first cylinder 118, so as to prevent the first sliding rod 102 from being separated from the first cylinder 118.

As further shown in fig. 6 and 7, a hand-held groove 105 is formed in one side of the drawer 104, so that the drawer 104 can be conveniently pulled out from the rectangular frame 101, a plurality of anti-wear blocks 109 are fixed on the bottom surface of the drawer 104, the anti-wear blocks 109 are attached to the inner wall of the rectangular frame 101, and when the drawer 104 is pulled out from the rectangular frame 101, the wear of the drawer 104 can be conveniently reduced through the anti-wear blocks 109.

Further as shown in fig. 3, 4, 5 and 6, one be equipped with scrap collecting box 107 in the storage chamber, scrap collecting box 107 one relative inner wall all is fixed with first handle 108, is convenient for take out scrap collecting box 107 from the storage chamber through first handle 108, rectangle frame 101 upper surface corresponds scrap collecting box 107 position department and has seted up first groove 110 of stepping down for waste on the rectangle frame 101 can fall into scrap collecting box 107 through first groove 110 of stepping down, it is connected with flip 112 through the pivot rotation in the groove 110 to first step down, a first groove 110 inner wall symmetry of stepping down is fixed with two second stop blocks 111 and the laminating of second stop block 111 and flip 112, flip 112 upper surface is fixed with second handle 113, prevents that article from falling unexpected waste collecting box 107 of going into.

Further as shown in fig. 2, a handle 116 is fixed on one opposite side of the rectangular frame 101, a plurality of second cylinders 122 are fixed on the lower surface of the bottom plate 117, the bottom ends of the second cylinders 122 are rotatably connected with universal wheels 123, a user can hold the handle 116 to push the device, the device can be shifted to an appointed position in a classroom under the action of the universal wheels 123, so that the device is convenient to move, a second abdicating groove 120 is formed in the upper surface of the bottom plate 117, sufficient space is reserved for the placement of feet, reinforcing ribs 121 are fixed at the edges of the second abdicating groove 120, and the structural strength of the bottom plate 117 is convenient to enhance.

As further shown in fig. 10, a sliding groove 204 is formed at one side of the pressing block 203, a third stopper 206 is fixed to the other end of the second sliding rod 205, the third stopper 206 is located in the sliding groove 204, the pressing block 203 is prevented from being separated from the second sliding rod 205, a first stopper 210 is fixed to one end of the first round rod 208, and the first stopper 210 is located in the pressing block 203.

Further as shown in fig. 9, a plurality of first receiving grooves 211 are formed in an inner wall of the U-shaped block 202 and one side of the pressing block 203, a wheel 212 is rotatably connected to the first receiving groove 211 through a rotating shaft, and a rubber ring 213 is arranged on the wheel 212, so that the camera module 2 slides along the protection plate 115, and the wheel 212 is tightly attached to the surface of the protection plate 115 in the process.

As further shown in fig. 8, two second limiting blocks 214 are fixed to the output end of the second hydraulic cylinder 201, the two second limiting blocks 214 are respectively located on two sides of the first drum 215, so that the first drum 215 is limited by the second limiting blocks 214, two third limiting blocks 228 are fixed on the peripheral side of the fourth round rod 226, one third limiting block 228 is located in the third abdicating groove 222, and the other third limiting block 228 is located on one side of the mounting block 221, so that the fourth round rod 226 is limited by the third limiting blocks 228.

When the device is used, a user can hold the handle 116 with a hand to push the device, the device can be transferred to a designated position in a classroom under the action of the universal wheels 123, then the user can control the first hydraulic cylinder 119 to operate through the control panel 124, the rectangular frame 101 can be lifted or lowered under the action of the first hydraulic cylinder 119 to reach a position for adjusting the height of the rectangular frame 101, the first sliding rod 102 can slide along the first cylinder 118 during the adjustment process, then the user can rotate the first knob 209, so that the pressing block 203 can slide along the second sliding rod 205 under the action of the first round rod 208, thereby releasing the fixation of the camera module 2, next, the user can hold the second hydraulic cylinder 201 with a hand to slide the camera module 2 along the protection plate 115, the wheels 212 can cling to the surface of the protection plate 115 during the process, when the camera module 2 moves to a desired position, the user can rotate the first knob 209 to fix the camera module 2, then the user can control the second hydraulic cylinder 201 to operate through the control panel 124, thereby achieving the purpose of adjusting the height of the camera module 224, and then the user can respectively rotate the second round bar 216 and the third round bar 218 to adjust the position of the camera module 224, in addition, the user can drive the gear 227 to rotate by rotating the second knob 229, under the combined action of the gear 227 and the tooth socket 225, the camera module 224 will rotate, thereby achieving the position of adjusting the angle of the camera module 224, thereby being convenient for recording the teaching points in detail, and simultaneously the user can start the illuminating lamp 230 through the control panel 124, thereby achieving the purpose of improving the brightness, and simultaneously the user can watch the shot video in real time through the display screen on the control panel 124, and being convenient for adjusting the camera module 224 in time.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to 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 preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.