CN209965715U - Test paper storage device - Google Patents
Test paper storage device Download PDFInfo
- Publication number
- CN209965715U CN209965715U CN201920599856.3U CN201920599856U CN209965715U CN 209965715 U CN209965715 U CN 209965715U CN 201920599856 U CN201920599856 U CN 201920599856U CN 209965715 U CN209965715 U CN 209965715U
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- accommodating cavity
- test paper
- door
- cabinet body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The utility model discloses a test paper storage device, which comprises a cabinet body and at least one storage unit arranged on the cabinet body, wherein the storage unit comprises a holding cavity and an operation unit; a bottom plate is arranged in the accommodating cavity, slide rails are respectively arranged on two sides of the bottom plate, the slide rails are connected with the bottom plate in a sliding manner, a cylinder assembly is arranged below the bottom plate, and the cylinder assembly is connected with the bottom plate; the top wall of the containing cavity is provided with a lock seat, one side of the containing cavity is provided with a door plate, the door plate is hinged on the cabinet body, and the door plate is provided with a lock head matched with the lock seat; at least one fixing piece is arranged on the side wall of the accommodating cavity, an elastic piece is arranged on the fixing piece, and one end of the elastic piece is connected with the door panel; the operation unit comprises a fingerprint acquisition sensor and an air cylinder switch, the fingerprint acquisition sensor is electrically connected with the lock seat, and the air cylinder switch is electrically connected with the air cylinder assembly. Compared with the prior art, the test paper storage or taking operation is more convenient, and the safety is higher.
Description
Technical Field
The utility model relates to a teaching equipment technical field, more specifically relates to a test paper strorage device.
Background
The examination paper data of the student examination belongs to confidential documents and needs to be stored in a confidential mode, and many education examination institutions store some important examination papers by establishing a test paper security room and store the examination papers in a special test paper storage cabinet. The existing test paper storage cabinet usually adopts a mechanical lock to lock the cabinet door so as to prevent lawless persons from stealing test papers or modifying test paper information. Because the mechanical lock need be used the key switch door, it is very loaded down with trivial details to unblank and close the lock operation, needs open the cabinet door with the key earlier, puts into the examination paper cabinet with the examination paper after, closes the cabinet door with the key, deposits the examination paper for relevant staff and causes inconveniently, and the key is lost easily or is stolen to get in addition, is unfavorable for keeping secret of examination paper and deposits.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a test paper storage device with high safety and convenient locking and unlocking.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a test paper strorage device to solve present test paper and deposit inconvenient and the not high technical problem of security.
The utility model provides a test paper storage device, which comprises a cabinet body and at least one storage unit arranged on the cabinet body, wherein the storage unit comprises a holding cavity and an operation unit; a bottom plate is arranged in the accommodating cavity, slide rails are respectively arranged on two sides of the bottom plate, the slide rails are connected with the bottom plate in a sliding manner and fixed on the cabinet body, an air cylinder assembly is arranged below the bottom plate, and the air cylinder assembly is connected with the bottom plate; the top wall of the containing cavity is provided with a lock seat, one side of the containing cavity is provided with a door plate, the door plate is hinged on the cabinet body, and the door plate is provided with a lock head matched with the lock seat; at least one fixing piece is arranged on the side wall of the accommodating cavity, an elastic piece is arranged on the fixing piece, and one end of the elastic piece is connected with the door panel; the operation unit comprises a fingerprint acquisition sensor and an air cylinder switch, the fingerprint acquisition sensor is electrically connected with the lock seat, and the air cylinder switch is electrically connected with the air cylinder assembly.
Further, the cylinder subassembly includes cylinder and at least one support frame, and the telescopic shaft of cylinder and the one end of support frame are connected, and the other end and the bottom plate of support frame are connected, and the cylinder is fixed in on the cabinet body.
Furthermore, the bottom of the bottom plate is also provided with at least one connecting block, and the connecting block is fixedly connected with the supporting frame through a fixing bolt.
Furthermore, one side of the bottom plate, which is close to the door plate, is provided with at least one buffer block.
Furthermore, a plurality of through holes are formed in the bottom plate, and the through holes are arranged at intervals.
Compared with the prior art, the utility model provides a test paper strorage device has realized following beneficial effect at least:
1. the fingerprint collection sensor and the lock seat are electrically connected, the door lock can be opened through fingerprint identification, the operation of unlocking by a key is omitted, time and labor are saved, the fingerprint collection sensor is more convenient, the identity of an unlocking person can be confirmed through fingerprint unlocking, and therefore the fingerprint collection sensor has higher safety.
2. The sliding rails are arranged on two sides of the bottom plate respectively, the air cylinder assembly is connected with the bottom plate, so that the air cylinder assembly can drive the bottom plate to slide back and forth, when test papers are stored or taken, the bottom plate can slide out of the accommodating cavity only by pressing an air cylinder switch, the test papers are more convenient to store or take, the test papers are more conveniently stacked in order, the space between the accommodating cavity and the test papers is favorably reduced, and the space of the accommodating cavity is saved.
3. An elastic piece is arranged between the side wall of the accommodating cavity and the door plate, and the door plate can be pushed to be opened when the bottom plate slides out, so that the effect of automatically opening the door of the storage unit is realized; after the bottom plate slides into the accommodating cavity under the driving of the air cylinder assembly, the elastic piece rebounds to enable the door plate to be buckled on the side wall again, so that the effect of automatically closing the door of the storage unit is achieved, the door opening and closing operation is facilitated to be simplified, and the operation time is saved.
Of course, it is not necessary for any product of the present invention to achieve all of the above technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the storage unit of the present invention without a door panel;
fig. 3 is a schematic longitudinal sectional view of the storage unit of the present invention;
fig. 4 is a schematic view of the connection structure between the middle bottom plate and the support frame of the present invention.
Wherein: 1. the cabinet body, 10, deposit the unit, 11, the holding chamber, 2, the door plant, 21, the label bag, 3, the operating unit, 31, fingerprint sensor, 32, cylinder switch, 4, bottom plate, 40, the buffer block, 41, the connecting block, 42, fixing bolt, 43, through-hole, 5, slide rail, 6, cylinder assembly, 60, the cylinder, 61, the telescopic shaft, 62, the support frame, 7, the lock seat, 71, the tapered end, 8, the mounting, 80, the elastic component.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Please refer to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic structural diagram of the present invention; fig. 2 is a schematic structural view of the storage unit of the present invention without a door panel; fig. 3 is a schematic longitudinal sectional view of the storage unit of the present invention; fig. 4 is a schematic view of the connection structure between the middle bottom plate and the support frame of the present invention.
The utility model provides a test paper storage device, which comprises a cabinet body 1 and at least one storage unit 10 arranged on the cabinet body 1, wherein the storage unit 10 comprises an accommodating cavity 11 and an operation unit 3; a bottom plate 4 is arranged in the accommodating cavity 11, two sides of the bottom plate 4 are respectively provided with a slide rail 5, the slide rails 5 are connected with the bottom plate 4 in a sliding manner, the slide rails 5 are fixed on the cabinet body, an air cylinder assembly 6 is arranged below the bottom plate 4, and the air cylinder assembly 6 is connected with the bottom plate 4; the top wall of the accommodating cavity 11 is provided with a lock seat 7, one side of the accommodating cavity 11 is provided with a door plate 2, the door plate 2 is hinged on the cabinet body 1, and the door plate 2 is provided with a lock head 71 matched with the lock seat 7; at least one fixing part 8 is arranged on the side wall of the accommodating cavity 11, an elastic part 80 is arranged on the fixing part 8, and one end of the elastic part 80 is connected with the door panel 2; the operation unit 3 comprises a fingerprint acquisition sensor 31 and a cylinder switch 32, the fingerprint acquisition sensor 31 is electrically connected with the lock base 7, and the cylinder switch 32 is electrically connected with the cylinder assembly 6.
In this embodiment, the bottom board 4 is used for placing test paper, and the test paper may be test paper to be read after answering by students, blank test paper for examination, and the like, which need to be stored secretly. The bottom plate 4 is located at the bottom of the accommodating cavity 11, and the shape of the longitudinal section thereof may be a straight shape, a U shape, an L shape, and the like according to actual needs, which is not particularly limited in this embodiment.
The bottom both sides of bottom plate 4 are provided with slide rail 5 respectively, slide rail 5 and bottom plate 4 sliding connection, and slide rail 5 is fixed in on the cabinet body 1. Specifically, referring to fig. 2, the slide rails 5 are located on two sides of the bottom plate 4, on one hand, the slide rails 5 have an effect of facilitating the sliding of the bottom plate 4, on the other hand, the slide rails 5 have an effect of bearing the weight of the bottom plate 4 and the test paper placed on the bottom plate 4, and the slide rails 5 may be made of an alloy material with a smooth surface and high strength. Optionally, a plurality of rollers may be disposed at the bottom of the bottom plate 4 to reduce the friction coefficient of the contact surface between the sliding rail 5 and the bottom plate 4.
The slide rail 5 may be formed in a rectangular parallelepiped shape, a cylindrical shape, or the like according to actual needs, and fig. 2 and 3 illustrate only the slide rail 5 in a rectangular parallelepiped shape as an example.
In this embodiment, the top wall of the accommodating cavity 11 is provided with the lock seat 7, the door plate 2 is provided with the lock head 71 matched with the lock seat 7, and the accommodating cavity 11 is locked by the cooperation of the lock seat 7 and the lock head 71, so that the accommodating cavity 11 can serve as a closed space for storing the test paper. Lock seat 7 and fingerprint sensor 31 electricity are connected, also lock seat 7, tapered end 71 and fingerprint sensor 31 can form a fingerprint lock, after confirming the people's of unblanking identity through fingerprint sensor 31, lock seat 7 can unblock holding chamber 11 with tapered end 71 separation, and the unblock operation is convenient and fast more, and the security is also higher. One side of the door panel 2 is hinged on the cabinet body 1 and is connected with the side wall of the accommodating cavity 11 through a fixing part 8, and the elastic part 80 arranged on the fixing part 8 can enable the door panel 2 to be tightly attached to the accommodating cavity 11 under the action of elastic force.
The below of bottom plate 4 is provided with cylinder assembly 6, cylinder assembly 6 and bottom plate 4 are connected, cylinder assembly 6 is connected with cylinder switch 32 electricity, press cylinder switch 32 back, cylinder assembly 6 can drive 4 roll-off holding chambeies of bottom plate 11, bottom plate 4 promotes door plant 2 and rotates towards the direction of keeping away from holding chamber 11 this moment, thereby can realize depositing the automatic effect of opening the door of unit 10, also only need to press cylinder switch 32 can accomplish roll-off bottom plate 4, open operations such as door plant 2, make depositing or the operation of taking of examination paper labour saving and time saving more. The elastic member 80 has a good elastic force, the rotation of the door plate 2 makes the elastic member 80 in a tight stretching state, after the cylinder switch 32 is pressed down again, the cylinder assembly 6 drives the bottom plate 4 to slide into the accommodating cavity 11 again, at this time, the elastic member 80 in the stretching state retracts under the effect of the elastic force, the door plate 2 is driven to rotate to the side wall tightly attached to the accommodating cavity 11, the lock base 7 and the lock head 71 are locked with each other, and therefore the technical effect that the storage unit 10 is automatically closed can be achieved.
The fixing element 8 is mainly used for fixing one end of the elastic element 80, which is not used for connecting the door panel 2, and optionally, the fixing element 8 may be a buckle; the elastic member 80 may be formed of one or more strip-like structures made of a material having a superior elastic force. The combined structure of the fixing member 8 and the elastic member 80 may be only one or more, this embodiment does not specifically limit this, fig. 2 only illustrates the combined structure of two fixing members 8 and two elastic members 80, and the combined structure of two fixing members 8 and two elastic members 80 are respectively disposed on two opposite sidewalls of the accommodating cavity 11, so that two sides of the door panel 2 are subjected to relatively balanced elastic force, which is beneficial to improving the accuracy of the locking head 71 buckled to the lock base 7.
When a teacher stores (or takes) test paper, the specific operation process comprises the following steps:
the method comprises the following steps: pressing a finger on the fingerprint acquisition sensor 31, and separating the lock seat 7 from the lock head 71 after the fingerprint acquisition is correct;
step two: pressing the cylinder switch 32, the cylinder assembly 6 drives the bottom plate 4 to slide out of the accommodating cavity 11, and the test paper is placed on the bottom plate 4 (or taken from the bottom plate 4);
step three: the cylinder switch 32 is pressed again, the cylinder assembly 6 drives the bottom plate 4 to slide into the accommodating cavity 11 again, the door panel 2 rebounds under the elastic force of the elastic piece 80, and the lock head 71 is buckled on the lock seat 7 again.
In this embodiment, the number of the storage units 10 on the cabinet 1 may be set according to actual needs, and it can be understood that, in order to improve the space utilization rate of the cabinet 1, the number of the storage units 10 may be set to two or even more than two; of course, the distribution and arrangement of the plurality of storage units 10 may also be set according to actual needs, and fig. 1 only illustrates an example of setting four rows and two columns and 8 storage units 10 in total, but this embodiment does not specifically limit this.
Optionally, as shown in fig. 1, a label bag 21 is disposed on a side of the door panel 2 away from the accommodating cavity 11, and a teacher information card corresponding to each storage unit 10, such as a name, a job number, and the like of a teacher, may be placed in the label bag 21, so that the teacher can find the corresponding storage unit 10 in time to perform a storage (or taking) operation on a test paper, and of course, the number of the storage units 10 allocated to each teacher may be one or more.
Optionally, as shown in fig. 2, under the condition that the distance between the bottom plate 4 and the bottom wall of the accommodating cavity 11 is small, a groove for accommodating the cylinder assembly 6 may be formed in the cabinet body 1, which is beneficial to improving the space utilization rate of the cabinet body 1.
Optionally, as shown in fig. 2 and fig. 3, the cylinder assembly 6 includes a cylinder 60 and at least one supporting frame 62, a telescopic shaft 61 of the cylinder 60 is connected to one end of the supporting frame 62, the other end of the supporting frame 62 is connected to the bottom plate 4, and the cylinder 60 is fixed to the cabinet 1.
In this embodiment, the telescopic shaft 61 of the air cylinder 60 is connected with the bottom plate 4 through the support frame 62, the support frame 62 may be installed on the telescopic shaft 61 and/or the bottom plate 4 by welding, bolting, and the like, the air cylinder switch 32 is pressed, the telescopic shaft 61 of the air cylinder 60 extends out, so that the support frame 62 moves in a direction away from the air cylinder 60, and the support frame 62 may drive the bottom plate 4 to slide out of the accommodating cavity 11; when the cylinder switch 32 is pressed again, the telescopic shaft 61 of the cylinder 60 retracts, so that the support frame 62 moves towards the direction close to the cylinder 60, and the support frame 62 can drive the bottom plate 4 to slide into the accommodating cavity 11 again. Optionally, the cylinder 60 is a double-acting cylinder, and the specific type thereof may be various, for example, an SC standard cylinder may be selected, and this embodiment does not specifically limit this.
Optionally, referring to fig. 3, at least one buffer block 40 is disposed on a side of the bottom plate 4 close to the door panel 2.
In this embodiment, buffer block 40 can be as the buffer structure between bottom plate 4 and the door plant 2, can prevent that bottom plate 4 from causing wearing and tearing to door plant 2, extension strorage device's life. The buffer block 40 may be made of a soft and elastic material such as rubber, plastic foam, etc., and the shape, number, size, etc. thereof may be set according to the requirement, which is not limited in this embodiment.
Optionally, as shown in fig. 2, fig. 3 and fig. 4, at least one connecting block 41 is further disposed at the bottom of the bottom plate 4, and the connecting block 41 is fixedly connected to the supporting frame 62 through a fixing bolt 42.
In this embodiment, the connecting block 41 is used for connecting the bottom plate 4 and the supporting frame 62, so that the supporting frame 62 can be fixed on the bottom plate 4 through the fixing bolt 42, on one hand, the supporting effect of the supporting frame 62 on the bottom plate 4 is favorably strengthened, on the other hand, the model of the bottom plate 4 can be flexibly replaced according to actual needs, and the application range of the storage device is wider.
The number of the connecting blocks 41 can be one or more according to actual needs, and fig. 4 only illustrates that two connecting blocks 41 are arranged on the bottom wall of the bottom plate 4 as an example; meanwhile, the hole for installing the fixing bolt 42 on the connecting block 41 may be a strip-shaped hole or a circular hole, and the arrangement manner is arbitrary, which is not limited in this embodiment.
Optionally, as shown in fig. 4, a plurality of through holes 43 are formed on the bottom plate 4, and the through holes 43 are spaced apart from each other.
The through holes 43 are arranged to reduce the weight of the base plate 4, so that the pressure borne by the cylinder assembly 6 can be reduced under the condition that the total weight of the test paper is large, the working flexibility of the cylinder assembly 6 is improved, and the moving speed of the base plate 4 can meet the requirement.
According to the above embodiment, the utility model provides a paper strorage device has realized following beneficial effect at least: 1. the fingerprint collection sensor and the lock seat are electrically connected, the door lock can be opened through fingerprint identification, the operation of unlocking by a key is omitted, time and labor are saved, the fingerprint collection sensor is more convenient, the identity of an unlocking person can be confirmed through fingerprint unlocking, and therefore the fingerprint collection sensor has higher safety.
2. The sliding rails are arranged on two sides of the bottom plate respectively, the air cylinder assembly is connected with the bottom plate, so that the air cylinder assembly can drive the bottom plate to slide back and forth, when test papers are stored or taken, the bottom plate can slide out of the accommodating cavity only by pressing an air cylinder switch, the test papers are more convenient to store or take, the test papers are more conveniently stacked in order, the space between the accommodating cavity and the test papers is favorably reduced, and the space of the accommodating cavity is saved.
3. An elastic piece is arranged between the side wall of the accommodating cavity and the door plate, and the door plate can be pushed to be opened when the bottom plate slides out, so that the effect of automatically opening the door of the storage unit is realized; after the bottom plate slides into the accommodating cavity under the driving of the air cylinder assembly, the elastic piece rebounds to enable the door plate to be buckled on the side wall again, so that the effect of automatically closing the door of the storage unit is achieved, the door opening and closing operation is facilitated to be simplified, and the operation time is saved.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (5)
1. A test paper storage device comprises a cabinet body and at least one storage unit arranged on the cabinet body, and is characterized in that the storage unit comprises an accommodating cavity and an operation unit; a bottom plate is arranged in the accommodating cavity, slide rails are respectively arranged on two sides of the bottom plate, the slide rails are connected with the bottom plate in a sliding manner and fixed on the cabinet body, and an air cylinder assembly is arranged below the bottom plate and connected with the bottom plate; the top wall of the accommodating cavity is provided with a lock seat, one side of the accommodating cavity is provided with a door plate, the door plate is hinged on the cabinet body, and the door plate is provided with a lock head matched with the lock seat; at least one fixing piece is arranged on the side wall of the accommodating cavity, an elastic piece is arranged on the fixing piece, and one end of the elastic piece is connected with the door panel; the operation unit comprises a fingerprint acquisition sensor and an air cylinder switch, the fingerprint acquisition sensor is electrically connected with the lock seat, and the air cylinder switch is electrically connected with the air cylinder assembly.
2. The test paper storage device of claim 1, wherein the cylinder assembly comprises a cylinder and at least one support frame, the telescopic shaft of the cylinder is connected with one end of the support frame, the other end of the support frame is connected with the bottom plate, and the cylinder is fixed on the cabinet body.
3. The test paper storage device as claimed in claim 2, wherein the bottom of the bottom plate is further provided with at least one connecting block, and the connecting block is fixedly connected with the supporting frame through a fixing bolt.
4. The test paper storage device as claimed in claim 1, wherein at least one buffer block is provided on a side of the base plate adjacent to the door panel.
5. The test paper storage device as claimed in claim 1, wherein the bottom plate is provided with a plurality of through holes, and the through holes are spaced apart from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920599856.3U CN209965715U (en) | 2019-04-28 | 2019-04-28 | Test paper storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920599856.3U CN209965715U (en) | 2019-04-28 | 2019-04-28 | Test paper storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209965715U true CN209965715U (en) | 2020-01-21 |
Family
ID=69260075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920599856.3U Active CN209965715U (en) | 2019-04-28 | 2019-04-28 | Test paper storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209965715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113040540A (en) * | 2021-04-15 | 2021-06-29 | 杨平哲 | Examination paper finishing device |
-
2019
- 2019-04-28 CN CN201920599856.3U patent/CN209965715U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113040540A (en) * | 2021-04-15 | 2021-06-29 | 杨平哲 | Examination paper finishing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209965715U (en) | Test paper storage device | |
| LTIP1859A (en) | Modular public telephone | |
| CN209928537U (en) | A cell-phone cabinet for intelligent classroom roll call | |
| CN113077595B (en) | Self-service borrowing system for library and use method thereof | |
| CN210363075U (en) | Examination paper finishing device for high school student study | |
| CN209473915U (en) | A kind of Intelligent key case convenient for storage | |
| CN211186363U (en) | Student's archives storing compartment that possesses alarming function | |
| CN205862471U (en) | Distributed self-help system for borrowing and returning book | |
| CN112652082A (en) | Student attendance checking device | |
| CN212995398U (en) | Classroom mobile phone management device | |
| CN109901461A (en) | Student's career data collection system and platform | |
| CN217754665U (en) | Medical logistics storage cabinet | |
| CN215076461U (en) | High intensive cabinet of security | |
| CN203633757U (en) | Political materials storage cabinet | |
| CN215125396U (en) | Think political affairs classroom teaching auxiliary device | |
| CN214896746U (en) | But health monitoring and data management's safe wisdom terminating machine | |
| CN220458917U (en) | Primary school is archives strorage device for teaching | |
| CN214955509U (en) | A teaching aid for environmental protection science popularization | |
| CN216089492U (en) | Economic management voucher storage rack | |
| CN215125843U (en) | Non-contact operation collecting equipment for schools | |
| CN215125388U (en) | Think political affairs education with think political affairs propaganda equipment | |
| CN211795286U (en) | Cabinet is accomodate to smart mobile phone | |
| CN215548541U (en) | Storage device for dress designing convenient to fixed cutting tool of accomodating | |
| CN213691095U (en) | Teaching aid is collected to japanese study card is whole | |
| CN211349742U (en) | Xuan lesson teaching aid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |