Lifting device for teaching monitoring

Abstract

The utility model provides a lifting device for teaching monitoring. The lifting device comprises a movable chassis, the lifting assembly comprises a first lifting column fixed to the chassis, a second lifting column in up-down sliding fit is arranged in the first lifting column, and the second lifting column is driven by a lead screw mechanism arranged in the first lifting column to move up and down; the cantilever is arranged at the top of the second lifting column, and a camera is arranged at the tail end of the cantilever; the protective shell is detachably arranged on the upper end face of the chassis, and the lifting assembly penetrates through the protective shell and is arranged with a gap between the protective shell and the lifting assembly; and a control assembly. The transmission device can achieve accurate transmission and stable operation, and is convenient to maintain and safe in protection.

Description

Technical Field

[0001] This utility model relates to a lifting device, specifically a lifting device for teaching monitoring. Background Technology

[0002] In the development of educational informatization, teaching monitoring equipment has become an important component of smart classrooms, recorded lessons, and other scenarios. Existing teaching monitoring devices are typically fixed in place (e.g., suspended from the ceiling or fixed to the wall), making it difficult to dynamically adjust their monitoring angle and position according to teaching needs. For example, when the classroom layout changes (e.g., desks are used for group discussions, or the podium is moved), fixed monitoring equipment easily creates blind spots, failing to fully cover the areas where teachers and students are active.

[0003] To overcome the limitations of fixed installation, some existing devices adopt a lifting structure, but the following shortcomings still exist: traditional lifting devices mostly use chain, gear or hydraulic drive, chain drive is prone to gaps due to wear; exposed transmission parts are prone to dust accumulation leading to malfunctions, and mechanical noise affects the teaching experience.

[0004] With the increasing prevalence of routine recorded teaching and remote interactive classrooms, teaching monitoring equipment needs to possess the characteristics of "flexible movement, precise adjustment, and easy maintenance." Existing monitoring lifting devices, due to structural design flaws, cannot simultaneously meet the comprehensive requirements of teaching scenarios for equipment functionality, security, and ease of use. Therefore, there is an urgent need for a new type of teaching monitoring lifting device that addresses these issues. Utility Model Content

[0005] This invention provides a lifting device for teaching monitoring, which can effectively solve the above-mentioned problems.

[0006] This utility model is implemented as follows:

[0007] A lifting device for monitoring teaching activities includes:

[0008] Movable chassis;

[0009] The lifting assembly includes a first lifting column fixed on the chassis, and a second lifting column that slides vertically within the first lifting column. The second lifting column is driven to move vertically by a screw mechanism located within the first lifting column.

[0010] A cantilever arm is mounted on top of the second lifting column, and a camera is installed at its end.

[0011] A protective shell is detachably disposed on the upper surface of the chassis, and the lifting assembly is disposed through the gap between the protective shell and the chassis.

[0012] Control components.

[0013] As a further improvement, the lead screw mechanism includes a main motor and a first lead screw. The main motor is fixed on the chassis, and the first lead screw is driven by the main motor and located inside the first lifting column. The second lifting column cooperates with the first lead screw to move up and down.

[0014] As a further improvement, the chassis includes lockable casters.

[0015] As a further improvement, the cantilever is an electrically retractable structure, including a first cantilever and a second cantilever. The first cantilever is equipped with an auxiliary motor and a second lead screw driven by the auxiliary motor. The second cantilever is located inside the second cantilever and is driven by the second lead screw.

[0016] As a further improvement, the control assembly includes a control box and an operation panel, the control box being disposed inside the protective shell, and the operation panel being disposed on the side of the first lifting column and higher than the protective shell.

[0017] As a further improvement, the protective shell includes two mirror-mounted shells, the bottom of which is engaged with the upper and lower limits of the chassis, and the two shells are connected by a connecting block, wherein the shells are made of plastic.

[0018] As a further improvement, the bottom of the housing is also provided with a slit for cable routing.

[0019] As a further improvement, a counterweight is also included, which is located on the upper surface of the chassis and covered by the protective shell.

[0020] The beneficial effects of this utility model are:

[0021] Precise transmission and stable operation are achieved through a screw mechanism in the lifting assembly. Its high precision and low backlash enable accurate control of the lifting height, meeting the specific viewing angle requirements of teaching monitoring. Furthermore, the screw mechanism is concealed within the first lifting column, with a closed design effectively reducing dust and foreign object interference. Compared to chain drives requiring regular lubrication and hydraulic drives prone to oil leaks, it has lower maintenance costs and operates smoothly and quietly, avoiding interference with teaching activities. The device can be quickly moved to any monitoring point, such as the podium or the back of the classroom. After positioning, the casters are locked, and the chassis can be further equipped with additional features. Adjusting the support feet and counterweights effectively increases the contact area, lowers the center of gravity, and enhances anti-tipping ability, making it less prone to tipping over when the cantilever extends or the lifting column rises. For convenient maintenance and safety, the two mirrored housings are joined by connecting blocks, with the bottom and chassis upper and lower limit latches engaging, allowing for quick assembly and disassembly without tools. Additionally, the chamfered corner design at the bottom of the housing is for cable routing, concealing and protecting power and signal cables. The housing is made of plastic with rounded corners, which cushions impacts, reduces shock to internal lifting components, and prevents accidental injuries, improving safety. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model.

[0024] Figure 2 This is a schematic diagram of the internal structure of the lifting assembly provided in this embodiment of the utility model.

[0025] Figure 3 This is a schematic diagram of the protective shell structure provided in an embodiment of the present utility model.

[0026] Figure 4 This is a schematic diagram of the cantilever structure provided in an embodiment of the present invention.

[0027] Figure label:

[0028] 1. Chassis; 11. Casters; 2. Lifting assembly; 21. First lifting column; 211. Raised bar; 22. Second lifting column; 221. Groove; 23. Main motor; 24. First lead screw; 3. Cantilever; 31. First cantilever; 32. Second cantilever; 33. Auxiliary motor; 34. Second lead screw; 4. Protective shell; 41. Housing; 42. Connecting block; 43. Chamfer; 5. Camera; 61. Control box; 62. Operation panel; 7. Counterweight. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0030] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Reference Figure 1-4 As shown, a lifting device for teaching monitoring includes:

[0032] The movable chassis 1 facilitates the flexible movement of the device;

[0033] The lifting assembly 2 includes a first lifting column 21 fixed on the chassis 1. The first lifting column 21 has a second lifting column 22 that slides vertically and vertically inside it. The second lifting column 22 is driven to move vertically by a screw mechanism located inside the first lifting column 21. The screw mechanism has the characteristics of high transmission precision and low backlash, so as to achieve precise control of the lifting height.

[0034] Cantilever 3 is located at the top of the second lifting column 22, and a camera 5 is provided at its end;

[0035] The protective shell 4 is detachably mounted on the upper surface of the chassis 1. The lifting component 2 passes through the protective shell 4 and is positioned in the gap between it and the protective shell 4. The corners of the protective shell 4 are rounded to avoid right-angle collisions. The detachable design facilitates later maintenance and reduces the difficulty of equipment maintenance. It can reduce the impact of the chassis 1 colliding with walls, tables, chairs, etc., on the internal lifting component 2 when the device is moved. The protective shell 4 serves as the external outline of the device and can be coordinated with the classroom decoration style to avoid the abrupt industrial feel caused by exposed mechanical parts and enhance the aesthetics of the equipment. The protective shell 4 has a certain degree of noise reduction effect on the internal screw mechanism during operation, reducing mechanical noise interference with teaching activities during the lifting process, especially in a quiet classroom environment, thus improving the user experience for teachers and students.

[0036] The control component is connected to and controls the operation of the lifting component 2. The control component drives multiple actuators in a unified manner to achieve the coordination of complex actions.

[0037] Specifically, the lead screw mechanism includes a main motor 23 and a first lead screw 24. The main motor 23 is fixed on the chassis 1. The first lead screw 24 is driven by the main motor 23 and is located inside the first lifting column 21. The second lifting column 22 cooperates with the first lead screw 24 to move up and down. The inner side of the first lifting column 21 is provided with a vertically arranged protrusion 211, and the outer side of the second lifting column 22 is provided with a vertically arranged groove 221. The groove 221 cooperates with the protrusion 211 to stop the second lifting column 22 from rotating when it moves up and down.

[0038] Specifically, chassis 1 includes lockable casters 11.

[0039] Specifically, the cantilever 3 is an electrically retractable structure, including a first cantilever 31 and a second cantilever 32. The first cantilever 31 is equipped with an auxiliary motor 33 and a second lead screw 34 driven by the auxiliary motor 33. The second cantilever 32 is located inside the second cantilever 32 and is in transmission cooperation with the second lead screw 34.

[0040] Specifically, the control components include a control box 61 and an operation panel 62. The control box 61 is located inside the protective shell 4 and is equipped with a wireless remote control function (supporting 2.4G or Bluetooth connection). Operators can remotely control the lifting within a range of 10 meters, improving the ease of operation in complex scenarios. The operation panel 62 is located on the side of the first lifting column 21 and is higher than the protective shell 4. The operation panel 62 is equipped with physical buttons and an LCD display screen, which displays parameters such as lifting height, extension length of cantilever 3, and camera angle 5 in real time. It supports one-click switching of preset monitoring modes. The operation panel 62 is 1.2-1.5 meters above the ground, which is an ergonomic height, making it easy for personnel to stand and operate, reducing fatigue from bending over or looking up.

[0041] Specifically, the protective shell 4 includes two mirror-mounted shells 41. The bottom of the shells 41 is engaged with the upper and lower limits of the chassis 1. The two shells 41 are connected by a connecting block 42. The shells 41 are made of plastic. The shells 41 are lightweight, durable and insulating, which reduces the overall weight of the device while avoiding the risk of leakage, and meets the long-term use needs of teaching scenarios.

[0042] Specifically, the bottom of the housing 41 is also provided with a slit angle 43 for cable routing.

[0043] Specifically, it also includes a counterweight 7, which is located on the upper surface of the chassis 1 and covered by the protective shell 4. By reasonably counterweighting, the center of gravity of the device is lowered, thereby enhancing the anti-overturning ability when the cantilever 3 extends or the lifting column is raised.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lifting device for use in teaching monitoring, characterized in that The utility model relates to a kind of mobile camera, including: Movable chassis (1); Lifting assembly (2), the first lifting column (21) fixed on the chassis (1) is included, the second lifting column (22) is provided with in the first lifting column (21) and is slidably fitted, the second lifting column (22) is driven to realize up and down movement by being provided in the first lifting column (21) screw rod mechanism; Cantilever (3), the cantilever (3) is equipped on the top of the second lifting column (22), and camera (5) is equipped at its end; Protective shell (4), the protective shell (4) is detachably equipped on the upper end surface of the chassis (1), and the lifting assembly (2) is arranged with gap between it; Control assembly.

2. The lifting device for teaching monitoring according to claim 1, characterized in that, The screw rod mechanism includes main motor (23) and first screw rod (24), the main motor (23) is fixed on the chassis (1), and the first screw rod (24) is driven by the main motor (23) and is provided in the first lifting column (21), and the second lifting column (22) is cooperated with the first screw rod (24) and moves up and down.

3. The lifting device for teaching monitoring according to claim 1, characterized in that, The chassis (1) includes lockable universal wheel (11).

4. The lifting device for teaching monitoring according to claim 1, characterized in that, The cantilever (3) is electric telescopic structure, including first cantilever (31) and second cantilever (32), the first cantilever (31) is equipped with auxiliary motor (33) and second screw rod (34) driven by the auxiliary motor (33), and the second cantilever (32) is provided in the second cantilever (32) and is transmission cooperation with the second screw rod (34).

5. The lifting device for teaching monitoring according to claim 1, wherein The control assembly includes control box (61) and operation panel (62), the control box (61) is equipped in the protective shell (4), and the operation panel (62) is equipped on the side of the first lifting column (21) and is higher than the protective shell (4).

6. The lifting device for teaching monitoring according to claim 1, wherein The protective shell (4) includes two mirror image settings shell (41), the shell (41) bottom is connected with the chassis (1) and is limited to the top and bottom, and two shell (41) are connected by connecting block (42), and the shell (41) is plastic material.

7. The lifting device for teaching monitoring according to claim 6, wherein The shell (41) bottom is further equipped with a corner (43), for cable setting.

8. The lifting device for teaching monitoring according to claim 1, wherein Further including counterweight (7), the counterweight (7) is equipped on the upper end surface of the chassis (1) and is covered by the protective shell (4).

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