CN219303063U - Roll call device for classroom attendance - Google Patents
Roll call device for classroom attendance Download PDFInfo
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- CN219303063U CN219303063U CN202320764899.9U CN202320764899U CN219303063U CN 219303063 U CN219303063 U CN 219303063U CN 202320764899 U CN202320764899 U CN 202320764899U CN 219303063 U CN219303063 U CN 219303063U
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- 238000010586 diagram Methods 0.000 description 6
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- 238000004891 communication Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a roll call device for checking in attendance in classrooms, which comprises: the front side of the mounting frame is provided with a placing groove, and the back side of the mounting frame is provided with a movable groove; the roll-call attendance main body is placed in the placing groove, inserted into the placing groove from the upper end of the mounting frame, and connected with the placing groove in a plug-in manner; the buckling frames are arranged at the upper end of the installation frame and are positioned at the positions on two sides of the placement groove, the two buckling frames are symmetrically arranged, and the two buckling frames are in sliding connection with the installation frame. According to the roll-call device for the classroom attendance, provided by the utility model, the roll-call attendance main body can be conveniently and rapidly assembled with the mounting frame through the cooperation design of the multiple structures, so that the roll-call attendance main body is convenient to mount and dismount, and after the roll-call attendance main body is used, the roll-call attendance main body can be taken down, and further accidental loss or damage of the roll-call attendance main body is avoided.
Description
Technical Field
The utility model relates to the technical field of teacher tools, in particular to a roll call device for attendance in a classroom.
Background
In most schools, teachers still keep the habit of roll calling before class, but a period of class time is limited, so roll calling is wasted in time, and people set an intelligent attendance roll calling device for conveniently solving the problem. The attendance roll call device in the current market is provided with the fingerprint which can be input into students in class, roll calls are carried out according to the stored fingerprint, names of the absence students can be displayed after roll calls are finished, a teacher is not required to roll calls according to roll books, and a lot of time is saved.
For example, chinese patent (CN 210377567U) discloses a roll call device with LED display screen for attendance checking in schools, wherein it is recorded that: the installation cavity is formed in the installation box, the installation sheets and the fixing holes are formed in the left side and the right side of the installation box, the roll-call attendance main body is conveniently and rapidly placed into the installation box through the installation cavity, meanwhile, the installation sheets and the fixing holes are convenient to fix the installation box at a classroom door, students who conveniently enter a classroom can fast punch cards, time is saved, and the automatic roll-call attendance machine is further characterized in that: the existing attendance roll-call device is fixed on a wall through a fixing screw, is inconvenient to disassemble and assemble, and is easy to lose and damage when placed in a classroom, so that property loss is caused.
In view of the above, the following technical problems are mentioned in the prior art: the existing attendance roll-call device is fixed on a wall through a fixing screw, is inconvenient to disassemble and assemble, is easy to lose and damage when placed in a classroom, and causes property loss.
Disclosure of Invention
Based on this, it is necessary to provide a roll-call device of classroom attendance to above-mentioned technical problem, through the cooperation design of multi-structure for roll-call attendance main part can be convenient and fast assemble with the mounting bracket, make the installation of roll-call attendance main part dismantle comparatively convenient, after roll-call attendance main part has used, can take off roll-call attendance main part, and then avoid roll-call attendance main part's unexpected loss or damage.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a roll call device for attendance in a classroom is applied to teaching assistance.
The roll call device for checking in the classroom specifically comprises:
the front side of the mounting frame is provided with a placing groove, and the back side of the mounting frame is provided with a movable groove;
the roll-call attendance main body is placed in the placing groove, the roll-call attendance main body is inserted into the placing groove from the upper end of the mounting frame, and the roll-call attendance main body is connected with the placing groove in a plug-in manner;
the buckling frames are arranged at the upper end of the mounting frame and are positioned at the positions on two sides of the placing groove, the two buckling frames are symmetrically arranged, and the two buckling frames are both in sliding connection with the mounting frame;
the linkage assembly is arranged inside the movable groove and used for driving the two buckling frames to limit and fix the placing groove when the roll-call attendance checking main body is inserted inside the placing groove.
As a preferred implementation mode of the roll call device for attendance in classrooms, the linkage assembly comprises a linkage pressing frame, the linkage pressing frame is located at the middle of the installation frame and is vertically and slidably connected with the installation frame, one end of the linkage pressing frame extends into the movable groove, compression springs are arranged between one end of the linkage pressing frame located in the movable groove and the buckling frame, one end of each compression spring is fixedly provided with a second connecting block, the second connecting block is fixedly connected with the buckling frame at the same end, the other end of each compression spring is fixedly provided with a first connecting block, and the first connecting block is fixedly connected with the linkage pressing frame.
As a preferred implementation mode of the roll call device for attendance in classrooms, a guide telescopic rod is further arranged between one end of the linkage pressing frame, which is positioned in the movable groove, and the buckling frame, one end of the guide telescopic rod is rotatably connected with the connecting block, and the other end of the guide telescopic rod is rotatably connected with the second connecting block.
As a preferable implementation mode of the roll call device for attendance in classrooms, the other end of the linkage pressing frame extends into the placing groove, a buckling frame is fixed at the lower end of one end, far away from the movable groove, of the linkage pressing frame, and the buckling frame is buckled and connected with the lower end of the mounting frame.
As a preferred implementation mode of the roll call device for attendance in classrooms, which is provided by the utility model, one end of the buckling frame, which is far away from the middle part of the installation frame, is fixedly provided with a movable plate, the movable plate is in sliding connection with the installation frame, one end of the movable plate, which is far away from the buckling frame, extends to the outer side of the installation frame, and the buckling frame is in sliding connection with the installation frame through the movable plate.
As a preferred implementation mode of the roll call device for attendance in classrooms, both sides of the mounting frame are provided with the limiting components, the limiting components comprise the fixing base, the fixing base is fixedly connected with the mounting frame, the inside of the fixing base is slidably connected with the inserting rod, the upper end of the inserting rod is connected with the movable plate in a plugging manner, and the outer sides of the inserting rod are respectively fixed with the anti-slip ring and the anti-slip ring.
As an optimal implementation mode of the roll-call device for the classroom attendance, which is provided by the utility model, a picking and placing handle is fixed at the top end of the roll-call attendance main body.
As an optimal implementation mode of the roll call device for classroom attendance provided by the utility model, mounting plates are fixed at four end angle positions of the mounting frame.
Compared with the prior art, the utility model has the following beneficial effects:
according to the roll-call device for the classroom attendance, provided by the utility model, the roll-call attendance body can be conveniently and rapidly assembled with the mounting frame through the cooperation design of the multiple structures, so that the roll-call attendance body is convenient to mount and dismount, and after the roll-call attendance body is used, the roll-call attendance body can be taken down, and further accidental loss or damage of the roll-call attendance body is avoided.
According to the roll-call device for the classroom attendance, disclosed by the utility model, through the structural design of the limiting component, after the roll-call attendance main body is assembled with the mounting frame, the movement of the buckling frame can be limited through the limiting component, so that the buckling frame is prevented from accidentally slipping off and losing the limit of the roll-call attendance main body, the roll-call attendance main body is prevented from being accidentally lost, and the fixing stability of the roll-call attendance main body is effectively improved.
Drawings
In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a roll call device for checking in attendance in a classroom;
fig. 2 is a schematic structural diagram of a roll call device placement groove for checking in attendance in a classroom, which is provided by the utility model;
fig. 3 is a schematic structural diagram of a roll call device movable slot for checking in the classroom provided by the utility model;
fig. 4 is a schematic structural diagram of a roll call device linkage assembly for classroom attendance according to the present utility model;
fig. 5 is a schematic structural view of a roll call device buckle frame for checking in a classroom provided by the utility model;
fig. 6 is a schematic structural diagram of a roll call device movable plate for checking in the classroom provided by the utility model;
fig. 7 is a schematic structural diagram of a roll call device limiting assembly for classroom attendance.
The labels in the figures are illustrated below:
1. a roll-call attendance main body; 2. a mounting frame; 3. a mounting plate; 4. a buckling frame; 5. a placement groove; 6. a movable groove; 7. a linkage assembly; 8. a handle is taken and placed; 9. a linkage pressing frame; 10. a compression spring; 11. a first connecting block; 12. a second connecting block; 13. guiding the telescopic rod; 14. a buckling frame; 15. a movable plate; 16. a limit component; 17. a fixing seat; 18. a rod; 19. anti-slip ring; 20. an anti-slip ring.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
As described in the background art, the existing attendance roll-call device is fixed on a wall through a fixing screw, so that the attendance roll-call device is inconvenient to disassemble and assemble, and is easy to lose and damage when placed in a classroom, and property loss is caused.
In order to solve the technical problem, the utility model provides a roll call device for attendance in a classroom, which is applied to teaching assistance.
Specifically, referring to fig. 1 to 3, the roll call device for checking in attendance in a classroom specifically includes:
the mounting frame 2, the front of the mounting frame 2 is provided with a placing groove 5, and the back of the mounting frame 2 is provided with a movable groove 6;
the roll-call attendance checking body 1 is placed in the placing groove 5, the roll-call attendance checking body 1 is inserted into the placing groove 5 from the upper end of the mounting frame 2, and the roll-call attendance checking body 1 is connected with the placing groove 5 in a plug-in manner;
the buckling frames 4 are arranged at the upper end of the mounting frame 2 and are positioned at the positions at two sides of the placing groove 5, the two buckling frames 4 are symmetrically arranged, and the two buckling frames 4 are both in sliding connection with the mounting frame 2;
the linkage assembly 7 is arranged inside the movable groove 6 and is used for driving the two buckling frames 4 to limit and fix the placing groove 5 when the roll-call attendance checking main body 1 is inserted into the placing groove 5.
According to the roll-call device for the classroom attendance, provided by the utility model, the roll-call attendance main body 1 can be conveniently and rapidly assembled with the mounting frame 2 through the cooperation design of the multiple structures, so that the roll-call attendance main body 1 is convenient to mount and dismount, and after the roll-call attendance main body 1 is used, the roll-call attendance main body 1 can be taken down, and further accidental loss or damage of the roll-call attendance main body 1 is avoided.
In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Example 1:
referring to fig. 1-3, a roll call device for checking in a classroom includes:
the mounting frame 2, the front of the mounting frame 2 is provided with a placing groove 5, and the back of the mounting frame 2 is provided with a movable groove 6;
the roll-call attendance checking body 1 is placed in the placing groove 5, the roll-call attendance checking body 1 is inserted into the placing groove 5 from the upper end of the mounting frame 2, and the roll-call attendance checking body 1 is connected with the placing groove 5 in a plug-in manner; positioning and placing of the roll-call attendance main body 1 can be realized through the placing groove 5;
the buckling frames 4 are arranged at the upper end of the mounting frame 2 and are positioned at the positions at two sides of the placing groove 5, the two buckling frames 4 are symmetrically arranged, and the two buckling frames 4 are both in sliding connection with the mounting frame 2; after the roll-call attendance main body 1 is placed in the placing groove 5, the two buckling frames 4 can move towards the center direction of the mounting frame 2, so that the two buckling frames 4 can buckle the two end corners of the upper end of the roll-call attendance main body 1, the movement limit of the roll-call attendance main body 1 is realized, and the roll-call attendance main body 1 and the mounting frame 2 are mounted;
the linkage assembly 7 is arranged in the movable groove 6 and is used for driving the two buckling frames 4 to limit and fix the placing groove 5 when the roll-call attendance checking main body 1 is inserted into the placing groove 5
Specifically, the linkage assembly 7 includes linkage press frame 9, linkage press frame 9 is located mounting bracket 2 middle part position department, linkage press frame 9 and the vertical sliding connection of mounting bracket 2, linkage press frame 9's one end extends to inside the movable groove 6, all be provided with compression spring 10 between the one end that linkage press frame 9 is located inside the movable groove 6 and the lock frame 4, compression spring 10's one end is fixed with connecting block two 12, connecting block two 12 and the lock frame 4 fixed connection of same end, compression spring 10's the other end is fixed with connecting block one 11, connecting block one 11 and linkage press frame 9 fixed connection.
Further, a guiding telescopic rod 13 is further arranged between one end of the linkage pressing frame 9 positioned inside the movable groove 6 and the buckling frame 4, one end of the guiding telescopic rod 13 is rotatably connected with the first connecting block 11, and the other end of the guiding telescopic rod 13 is rotatably connected with the second connecting block 12. Wherein, the other end of linkage pressure frame 9 extends to inside standing groove 5, and the lower extreme that linkage pressure frame 9 kept away from movable groove 6 one end is fixed with detains frame 14, detains the lower extreme lock connection of frame 14 and mounting bracket 2.
As can be seen, when the roll-call attendance main body 1 is inserted into the placing groove 5, the lower end of the roll-call attendance main body 1 is in contact with the linkage pressing frame 9 to drive the linkage pressing frame 9 to move downwards, in the process of moving downwards the linkage pressing frame 9, the buckling frame 4 is pulled to gather towards the center direction of the roll-call attendance main body 1 by the compression spring 10, after the roll-call attendance main body 1 is completely inserted into the placing groove 5, the linkage pressing frame 9 is moved to the bottom end of the inner side of the mounting frame 2, and the buckling frame 14 arranged at the lower end of the linkage pressing frame 9 is buckled with the mounting frame 2, so that the movement limit of the linkage pressing frame 9 is completed, and the pulling state of the buckling frame 4 by the compression spring 10 can be kept, so that the buckling frame 4 is always buckled with the roll-call attendance main body 1; when the roll-call attendance main body 1 needs to be dismantled, only the linkage pressing frame 9 lower end buckling frame 14 is separated from the mounting frame 2, so that the movement of the linkage pressing frame 9 is contacted, the movable pressing frame 9 is moved upwards to push the placing groove 5 to move upwards, the compression spring 10 reduces the pulling of the buckling frame 4 in the process of moving the linkage pressing frame 9 upwards, so that the buckling frame 4 can be moved far away from the center direction of the roll-call attendance main body 1, the buckling of the buckling frame 4 to the end angle of the roll-call attendance main body 1 is released, the roll-call attendance main body 1 can be taken out from the placing groove 5, and the dismantling of the roll-call attendance main body 1 is completed.
Specifically, the one end that buckling frame 4 kept away from mounting bracket 2 middle part is fixed with fly leaf 15, fly leaf 15 and mounting bracket 2 sliding connection, and the one end that buckling frame 4 was kept away from to fly leaf 15 extends to the mounting bracket 2 outside, and buckling frame 4 passes through fly leaf 15 and mounting bracket 2 sliding connection. Through the structural design, the buckling frame 4 is convenient to move.
Example 2:
for further optimization of the roll call device for attendance in classrooms provided in embodiment 1, specifically, as shown in fig. 5-7, limiting assemblies 16 are arranged on two sides of the mounting frame 2, each limiting assembly 16 comprises a fixing seat 17, the fixing seat 17 is fixedly connected with the mounting frame 2, a plug rod 18 is slidably connected in the fixing seat 17, the upper end of the plug rod 18 is in plug connection with the movable plate 15, and an anti-slip ring 19 and an anti-slip ring 20 are respectively fixed on the outer sides of the plug rods 18.
Through the structural design, after the roll-call attendance main body 1 and the mounting frame 2 are assembled, the limiting assembly 16 can limit the movement of the buckling frame 4, so that the buckling frame 4 is prevented from accidentally slipping off and losing the limiting of the roll-call attendance main body 1, the roll-call attendance main body 1 is prevented from accidentally losing, and the fixing stability of the roll-call attendance main body 1 is effectively improved; after the roll-call attendance main body 1 and the mounting frame 2 are assembled, the inserting rod 18 is pushed to move upwards, so that the upper end of the inserting rod 18 is spliced with the movable plate 15, the movement limit of the buckling frame 4 is completed, accidental slipping of the buckling frame 4 is prevented, when the inserting rod 18 is spliced with the movable plate 15, the anti-slip ring 20 is moved to the upper end position of the movable plate 15, the inserting rod 18 is prevented from sliding downwards after being spliced with the movable plate 15 through the blocking of the anti-slip ring 20, the movement of the inserting rod 18 is limited through the anti-slip ring 19, and the phenomenon that the inserting rod 18 falls off due to excessive downward movement of the inserting rod 18 is avoided
Example 3:
further optimizing the roll-call device for attendance in classrooms provided in embodiment 1, specifically, as shown in fig. 1-2, a pick-and-place handle 8 is fixed at the top end of the roll-call attendance main body 1.
Through above-mentioned structural design, get through the grasp and put handle 8 and make things convenient for taking of roll call attendance main part 1 to place.
Example 4:
further optimizing the roll call device for classroom attendance provided in example 1, in particular, as shown in fig. 1-3, mounting plates 3 are fixed at four end angular positions of the mounting frame 2.
Through above-mentioned structural design, can fix mounting bracket 2 and wall body through mounting panel 3, make things convenient for the installation of device.
The roll call device for classroom attendance provided by the utility model has the following use process: when the roll-call attendance main body 1 is inserted into the placing groove 5, the lower end of the roll-call attendance main body 1 is in contact with the linkage pressing frame 9 to drive the linkage pressing frame 9 to move downwards, the buckling frame 4 is pulled to gather towards the center direction of the roll-call attendance main body 1 by the compression spring 10 in the process of moving downwards the linkage pressing frame 9, after the roll-call attendance main body 1 is completely inserted into the placing groove 5, the linkage pressing frame 9 is moved to the bottom end of the inner side of the mounting frame 2, the buckling frame 14 arranged at the lower end of the linkage pressing frame 9 is buckled with the mounting frame 2, so that the movement limit of the linkage pressing frame 9 is finished, and the pulling state of the compression spring 10 on the buckling frame 4 can be kept, so that the buckling frame 4 is always buckled with the roll-call attendance main body 1; when the roll-call attendance main body 1 needs to be dismantled, only the linkage pressing frame 9 lower end buckling frame 14 is separated from the mounting frame 2, so that the movement of the linkage pressing frame 9 is contacted, the movable pressing frame 9 is moved upwards to push the placing groove 5 to move upwards, the compression spring 10 reduces the pulling of the buckling frame 4 in the process of moving the linkage pressing frame 9 upwards, so that the buckling frame 4 can be moved far away from the center direction of the roll-call attendance main body 1, the buckling of the buckling frame 4 to the end angle of the roll-call attendance main body 1 is released, the roll-call attendance main body 1 can be taken out from the placing groove 5, and the dismantling of the roll-call attendance main body 1 is completed.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It is apparent that the above-described embodiments are only some embodiments of the present utility model, but not all embodiments, and the preferred embodiments of the present utility model are shown in the drawings, which do not limit the scope of the patent claims. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.
Claims (8)
1. A roll call device for attendance in a classroom, comprising:
the device comprises a mounting frame (2), wherein a placing groove (5) is formed in the front face of the mounting frame (2), and a movable groove (6) is formed in the back face of the mounting frame (2);
the roll-call attendance checking main body (1) is placed in the placing groove (5), the roll-call attendance checking main body (1) is inserted into the placing groove (5) from the upper end of the mounting frame (2), and the roll-call attendance checking main body (1) is connected with the placing groove (5) in an inserting mode;
the buckling frames (4) are arranged at the upper end of the mounting frame (2) and are positioned at the positions on two sides of the placing groove (5), the two buckling frames (4) are symmetrically arranged, and the two buckling frames (4) are both in sliding connection with the mounting frame (2);
the linkage assembly (7) is arranged inside the movable groove (6) and is used for driving the two buckling frames (4) to limit and fix the placing groove (5) when the roll-call attendance checking main body (1) is inserted inside the placing groove (5).
2. The roll call device of classroom attendance according to claim 1, characterized in that the linkage assembly (7) comprises a linkage pressing frame (9), the linkage pressing frame (9) is located at the middle position of the installation frame (2), the linkage pressing frame (9) is vertically connected with the installation frame (2) in a sliding mode, one end of the linkage pressing frame (9) extends to the inside of the movable groove (6), compression springs (10) are arranged between one end of the linkage pressing frame (9) located inside the movable groove (6) and the buckling frame (4), one end of each compression spring (10) is fixedly provided with a second connecting block (12), the second connecting block (12) is fixedly connected with the buckling frame (4) at the same end, and the other end of each compression spring (10) is fixedly provided with a first connecting block (11), and the first connecting block (11) is fixedly connected with the linkage pressing frame (9).
3. The roll call device for attendance checking in classrooms according to claim 2, wherein a guiding telescopic rod (13) is further arranged between one end of the linkage pressing frame (9) positioned in the movable groove (6) and the buckling frame (4), one end of the guiding telescopic rod (13) is rotatably connected with the first connecting block (11), and the other end of the guiding telescopic rod (13) is rotatably connected with the second connecting block (12).
4. The roll call device for attendance checking in classrooms according to claim 2, wherein the other end of the linkage pressing frame (9) extends into the placing groove (5), a buckling frame (14) is fixed at the lower end of the linkage pressing frame (9) far away from one end of the movable groove (6), and the buckling frame (14) is buckled and connected with the lower end of the installation frame (2).
5. The roll call device for attendance checking in classrooms according to claim 1, characterized in that one end of the buckling frame (4) far away from the middle part of the installation frame (2) is fixedly provided with a movable plate (15), the movable plate (15) is in sliding connection with the installation frame (2), one end of the movable plate (15) far away from the buckling frame (4) extends to the outer side of the installation frame (2), and the buckling frame (4) is in sliding connection with the installation frame (2) through the movable plate (15).
6. The roll call device of classroom attendance according to claim 5, characterized in that both sides of the mounting frame (2) are provided with limiting components (16), the limiting components (16) comprise a fixed seat (17), the fixed seat (17) is fixedly connected with the mounting frame (2), a plug rod (18) is slidably connected in the fixed seat (17), the upper end of the plug rod (18) is connected with a movable plate (15) in a plugging manner, and an anti-slip ring (19) and an anti-slip ring (20) are respectively fixed on the outer side of the plug rod (18).
7. Roll-call device for attendance in classrooms according to claim 1, characterized in that the top end of the roll-call attendance body (1) is fixed with a pick-and-place handle (8).
8. The roll call device for attendance in classrooms according to claim 1, characterized in that mounting plates (3) are fixed at four end angular positions of the mounting frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320764899.9U CN219303063U (en) | 2023-04-10 | 2023-04-10 | Roll call device for classroom attendance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320764899.9U CN219303063U (en) | 2023-04-10 | 2023-04-10 | Roll call device for classroom attendance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219303063U true CN219303063U (en) | 2023-07-04 |
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ID=86957238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320764899.9U Active CN219303063U (en) | 2023-04-10 | 2023-04-10 | Roll call device for classroom attendance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219303063U (en) |
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2023
- 2023-04-10 CN CN202320764899.9U patent/CN219303063U/en active Active
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Effective date of registration: 20231031 Address after: 1719, Building 16, Zhonghaixin Innovation Industrial City, No. 11 Ganli Er Road, Gankeng Community, Jihua Street, Longgang District, Shenzhen City, Guangdong Province, 518000 Patentee after: Shenzhen Fushi'an Zhongyue Technology Co.,Ltd. Address before: 518057 room 1307, building 19, China Hisense innovation industry city, No. 11, Ganli 2nd Road, Jihua street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ZHONGYUE TECHNOLOGY Co.,Ltd. |