Supporting baffle of examination question card counting instrument

Abstract

The utility model discloses a supporting baffle of an examination question card counting instrument, and relates to the field of education. The supporting baffle comprises a front bent plate, a front baffle body, a rear bent plate, a rear baffle body, a connecting base and clamping blocks, the front bent plate is arranged at the top of the front baffle body, the rear bent plate is arranged at the top of the rear baffle body, the connecting base is used for connecting the front bent plate with the front baffle body and connecting the rear bent plate with the rear baffle body, and the clamping blocks are arranged at the bottoms of the front baffle body and the rear baffle body. According to the supporting baffle, the clamping blocks at the bottom ends of the front baffle body and the rear baffle body are clamped in the clamping grooves of the elastic piece fixing piece and the baffle base respectively, then the supporting range is expanded, when large paper such as A3 paper is unfolded, the large paper can be supported firstly, and then the large paper is unfolded more conveniently; the front baffle and the rear baffle are convenient to assemble and disassemble, and the overall use flexibility is improved.

Description

Technical Field

[0001] This utility model relates to the field of educational technology, specifically a support baffle for an exam question card counter. Background Technology

[0002] In most existing exams, answer sheets are used to fill in the answers. After the answer sheets are collected, they need to be counted. Currently, the method for counting answer sheets after the exam still relies on people counting the number of sheets one by one, which undoubtedly leads to slow efficiency and the possibility of counting errors.

[0003] Current research on paper counting still relies on weighing or manual counting, which have limitations and may be subject to errors due to external influences. With technological advancements, exam paper counting instruments have emerged. These instruments can automatically and evenly unfold the paper and capture images of the paper edges. Through a designed algorithm, grayscale recognition is performed to measure the number of papers. The instrument is equipped with a power adapter and battery box and can be used with both AC and DC power.

[0004] However, some existing exam question card counters can only count small answer cards and cannot count large papers such as A3, which makes the exam question card counters less flexible and limited in application. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a support baffle for an exam question card counter, which solves the problem that some exam question card counters can only count small answer cards and cannot count large papers such as A3, resulting in poor flexibility and limited application range.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a support baffle for an examination question card counter includes a bracket unit, on which a support unit is provided;

[0007] The support unit includes a frame base, a connecting frame, a frame, a servo mount, a spring clip fastener, a support frame, a baffle seat, and a tripod. The connecting frame is located at one end of the frame base, and one end of the frame is inserted into the top of the connecting frame. The servo mount is installed at the other end of the frame, and the spring clip fastener is installed at the top of the other end of the frame. The support frame is located at the other end of the frame base, and the baffle seat is installed at the top of the support frame. The tripod is used for connecting the frame base to the connecting frame and the support frame to the frame base.

[0008] The support unit includes a front curved plate, a front baffle, a rear curved plate, a rear baffle, a connecting seat, and a locking block. The front curved plate is located on top of the front baffle, the rear curved plate is located on top of the rear baffle, the connecting seat is used to connect the front curved plate to the front baffle and the rear curved plate to the rear baffle, and the locking block is located at the bottom of the front baffle and the rear baffle.

[0009] Preferably, the spring clip fixing member and the baffle seat are provided with a retaining seat.

[0010] Preferably, the card block is engaged within the card holder.

[0011] Preferably, the connector includes a plug and a socket, the plug being fixedly connected to the bottom side of the front curved plate and the rear curved plate, and the socket being fixedly connected to the top side of the front baffle and the rear baffle.

[0012] Preferably, the plug is inserted into the socket.

[0013] Preferably, the front curved plate and the rear curved plate are respectively inserted into the top of the front baffle and the rear baffle.

[0014] This utility model discloses a support baffle for an exam question card counter, which has the following beneficial effects: the front baffle and the rear baffle are respectively engaged in the slots of the spring clip fixing piece and the baffle seat by the locking blocks at the bottom of the front baffle and the rear baffle, thereby expanding the support range. When unfolding large papers such as A3 paper, the large papers can be supported first, making it easier to unfold the large papers. The snap-on design makes it easy to install and remove the front baffle and the rear baffle, improving the overall flexibility of use.

[0015] By inserting the front and rear curved plates into the tops of the front and rear baffles respectively, the opening of the support baffle is made into a funnel shape. This allows large papers such as A3 paper to quickly enter the title card slot after being neatly arranged, facilitating automatic paper unfolding and improving the unfolding efficiency and quality of large papers such as A3 paper. Attached Figure Description

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the support unit structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the placement unit structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the unfolding unit structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the roller assembly structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the auxiliary unit structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the support unit structure of this utility model.

[0024] In the diagram: 1. Support unit; 11. Frame base; 12. Connecting frame; 13. Frame; 14. Servo mount; 15. Spring clip fastener; 16. Support frame; 17. Baffle mount; 171. Card slot; 18. Tripod; 2. Placement unit; 21. Electric servo; 22. Card slot; 23. Connecting block; 3. Deployment unit; 31. First fixing plate; 32. First push rod motor; 33. Clamp; 34. Second fixing plate; 35. Second push rod motor; 36. Roller assembly; 361. Movable seat; 362. Roller; 363. Bearing; 37. Spring; 4. Auxiliary unit; 41. Mounting plate; 42. Camera mount; 421. Mounting slot; 43. Lighting plate; 431. Through hole; 44. Lamp holder; 5. Support unit; 51. Front curved plate; 52. Front baffle; 53. Rear curved plate; 54. Rear baffle; 55. Connecting seat; 56. Locking block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] This utility model discloses a support baffle for an exam question card counter.

[0027] According to the appendix Figure 1-7 As shown, it includes a support unit 1 and a placement unit 2. The placement unit 2 is mounted on the support unit 1. An unfolding unit 3 is provided on one side of the placement unit 2, an auxiliary unit 4 is provided on one side of the unfolding unit 3, and a support unit 5 is provided above the placement unit 2.

[0028] Furthermore, the support unit 1 includes a frame base 11, a connecting frame 12, a frame 13, a servo mount 14, a spring clip fixing member 15, a support frame 16, a baffle seat 17, and a tripod 18. The connecting frame 12 is disposed at one end of the frame base 11, and one end of the frame 13 is inserted into the top of the connecting frame 12. The servo mount 14 is installed at the other end of the frame 13, the spring clip fixing member 15 is installed at the top of the other end of the frame 13, the support frame 16 is disposed at the other end of the frame base 11, the baffle seat 17 is installed at the top of the support frame 16, and the tripod 18 is used for connecting the frame base 11 and the connecting frame 12, and connecting the support frame 16 and the frame base 11.

[0029] Specifically disclosed, the placement unit 2 includes an electric servo motor 21, a question card slot 22, and a connecting block 23. The electric servo motor 21 is mounted on the servo motor base 14, and the top of the question card slot 22 is mounted on the electric servo motor 21. The inner middle part of the question card slot 22 has a hollow design. The connecting block 23 is fixedly connected to the side of the question card slot 22. When the answer card is placed in the question card slot 22, the rotation of the electric servo motor 21 can drive the question card slot 22 and the answer card inside it to rotate, thereby making the paper unfold evenly. The middle of the side of the question card slot 22 is hollow. After the machine unfolds the paper, the camera will take pictures from here for image processing.

[0030] Specifically disclosed, the unfolding unit 3 includes a first fixed plate 31, a first push rod motor 32, a clamp 33, a second fixed plate 34, a second push rod motor 35, a roller assembly 36, and a spring piece 37. The first fixed plate 31 is installed inside the support frame 16, the first push rod motor 32 is installed on the first fixed plate 31, the clamp 33 is fixedly connected to the output end of the first push rod motor 32, the second fixed plate 34 is installed on the connecting block 23 through the tripod 18, the second push rod motor 35 is installed on the second fixed plate 34, and the roller assembly 36 is located at the output end of the second push rod motor 35.

[0031] Specifically disclosed, the roller assembly 36 includes a movable base 361, a roller 362, and a bearing 363. The movable base 361 is fixedly connected to the output end of the second push rod motor 35. The roller 362 is rotatably connected to the movable base 361, and the roller 362 abuts against the answer sheet, and the roller 362 is in a rolling connection with the answer sheet. By setting the roller 362, the paper can achieve a better unfolding effect during unfolding. The bearing 363 is set on both sides of the movable base 361, and the two ends of the roller 362 are connected to the bearing 363. When the answer sheet slot... After rotation, the second push rod motor 35 drives the moving seat 361 to move towards the answer sheet, which in turn drives the roller 362 to move towards the answer sheet, so that the roller 362 abuts against the answer sheet and slowly unfolds the bottom of the answer sheet. After unfolding, the first push rod motor 32 drives the clamp 33 to move towards the answer sheet slot 22, so that the clamp 33 abuts against the top of the answer sheet and fixes it, thus fixing the unfolded paper at the top. Then the answer sheet slot 22 rotates back to its original position, and the second push rod motor 35 drives the moving seat 361 and the roller 362 to move in opposite directions.

[0032] Specifically, the top of the spring clip 37 is mounted on the spring clip fixing member 15. By setting the spring clip 37, it is prevented that the answer sheet will shift excessively out of the question card slot 22 when it is unfolded. That is, when the paper is unfolded, it often pops out of the question card slot 22 before the edge of the paper is unfolded. Since the spring clip 37 is fixed and locked, it will not shift. When the question card slot 22 rotates, the answer sheet and the spring clip 37 will bend. When it rotates back, the roller 362 presses the answer sheet and the spring clip 37, so that the answer sheet and the spring clip 37 are fixed together. Since the spring clip 37 is fixed and will not shift upward, it can be ensured that the paper will not shift out of the question card slot 22 by a large margin.

[0033] Specifically disclosed, the auxiliary unit 4 includes a mounting plate 41, a camera mount 42, a lighting plate 43, and a lamp holder 44. The mounting plate 41 is installed at the bottom of the support frame 16. The camera mount 42 is fixedly connected to the mounting plate 41 and has a mounting groove 421. The lighting plate 43 is fixedly connected to the camera mount 42 and has a through hole 431. The lamp holder 44 is located on the back of the lighting plate 43.

[0034] It is important to note that a camera is installed in the mounting slot 421, with the camera positioned to face the cutout area of ​​the question card slot 22. When the machine unfolds the paper, the camera can take a picture for the program to process the image and obtain the number of papers. The lamp is installed in the lamp holder 44, and the light shines along the through hole 431 towards the camera position. The purpose of the light is to make the picture clearer when taking pictures. When supplementing the light, it cannot be parallel to the question card slot 22. The light needs to shine from top to bottom. Since the black line on the edge of the unfolded paper is the shadow of the edge overlapping with the paper, it avoids the problem of no shadow between the papers and the inability to count if the supplementing light is from bottom to top. Therefore, the light must shine from top to bottom to obtain a clearer picture.

[0035] It is important to note that due to a certain physical defect in the answer sheet slot 22, the last sheet may not unfold properly when measuring larger sheets of paper. Therefore, when the machine takes the final photo, the answer sheet slot 22 is not perpendicular to the ground, but tilted clockwise at a 30-degree angle. This facilitates the unfolding of the last sheet and greatly increases the accuracy of the answer sheet counter. The camera needs to be parallel to the answer sheet slot 22 when taking the photo, and the camera is tilted at the same angle as the answer sheet slot 22 to ensure that the camera and the answer sheet are parallel during the photo taking process.

[0036] Furthermore, the spring clip fixing member 15 and the baffle seat 17 are provided with a card seat 171, and the card block 56 is snapped into the card seat 171. Through the snap-on design, the front baffle 52 and the rear baffle 54 are easy to install and remove, which improves the overall flexibility of use.

[0037] Furthermore, the support unit 5 includes a front curved plate 51, a front baffle 52, a rear curved plate 53, a rear baffle 54, a connecting seat 55, and a locking block 56. The front curved plate 51 is connected to the front baffle 52 via the connecting seat 55, and the rear curved plate 53 is connected to the rear baffle 54 via the connecting seat 55. The connecting seat 55 is located on the side of the front baffle 52 and the rear baffle 54, and the locking block 56 is located at the bottom of the front baffle 52 and the rear baffle 54. By setting up the support unit 5, when unfolding large papers such as A3 paper, it is only necessary to open the front baffle 52 and the rear baffle 54. The locking blocks 56 at the bottom of the plate 54 are respectively locked into the locking seats 171 of the spring clip fixing member 15 and the baffle seat 17, so that large papers can be supported first, and then the paper can be unfolded better. By connecting the top of the front baffle 52 and the rear baffle 54 to the front curved plate 51 and the rear curved plate 53 respectively, the opening of the supporting baffle is funnel-shaped, so that large papers such as A3 paper can quickly enter the title card slot 22 after being arranged, which facilitates automatic unfolding of the paper and improves the unfolding efficiency and unfolding quality of large papers such as A3 paper.

[0038] Working principle: First, the answer sheet is placed into the answer sheet slot 22. The electric servo motor 21 is started, which drives the answer sheet slot 22 to rotate, thereby rotating the answer sheet. At this time, the answer sheet and the spring 37 will bend. Then, the second push rod motor 35 drives the moving seat 361 to move towards the answer sheet, which in turn drives the roller 362 to move towards the answer sheet, so that the roller 362 presses against the answer sheet, causing the answer sheet slot 22 to rotate back into position. During the return process, the roller 362 presses against the answer sheet and the spring 37, fixing the answer sheet and the spring 37 in place. Together, while the spring 37 is fixed and will not move upward, it can be ensured that the paper will not shift significantly outward from the answer sheet slot 22. The bottom of the answer sheet slowly unfolds. After unfolding, the first push rod motor 32 drives the clamp 33 to move towards the answer sheet slot 22, so that the clamp 33 abuts and fixes against the top of the answer sheet, thus fixing the unfolded paper above. Then, the second push rod motor 35 drives the moving seat 361 and the roller 362 to move in the opposite direction, so that the second push rod returns to its position, and the above unfolding action is repeated.

[0039] When it is necessary to count large sheets of paper, the locking blocks 56 at the bottom of the front baffle 52 and the rear baffle 54 are respectively locked into the locking seats 171 of the spring clip fixing member 15 and the baffle seat 17, so that the large sheets of paper can be supported first, and then the subsequent paper unfolding can be carried out.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A support baffle for an exam question card counter, comprising a support unit (1), characterized in that, The support unit (1) is provided with a support unit (5); The support unit (1) includes a frame base (11), a connecting frame (12), a frame (13), a servo mount (14), a spring clip fixing member (15), a support frame (16), a baffle seat (17), and a tripod (18). The connecting frame (12) is located at one end of the frame base (11), and one end of the frame (13) is inserted into the top of the connecting frame (12). The servo mount (14) is installed at the other end of the frame (13). The spring clip fixing member (15) is installed at the top of the other end of the frame (13). The support frame (16) is located at the other end of the frame base (11), and the baffle seat (17) is installed at the top of the support frame (16). The tripod (18) is used to connect the frame base (11) with the connecting frame (12) and the support frame (16) with the frame base (11). The support unit (5) includes a front curved plate (51), a front baffle (52), a rear curved plate (53), a rear baffle (54), a connecting seat (55), and a locking block (56). The front curved plate (51) is located on top of the front baffle (52), the rear curved plate (53) is located on top of the rear baffle (54), the connecting seat (55) is used to connect the front curved plate (51) with the front baffle (52) and the rear curved plate (53) with the rear baffle (54), and the locking block (56) is located at the bottom of the front baffle (52) and the rear baffle (54).

2. The support baffle of the exam question card counter according to claim 1, characterized in that, The spring clip fixing member (15) and the baffle seat (17) are provided with a card seat (171).

3. The support baffle of the exam question card counter according to claim 2, characterized in that, The card block (56) is engaged in the card holder (171).

4. The support baffle of the exam question card counter according to claim 1, characterized in that, The connector (55) includes a plug and a socket. The plug is fixedly connected to the bottom side of the front curved plate (51) and the rear curved plate (53), and the socket is fixedly connected to the top side of the front baffle (52) and the rear baffle (54).

5. The support baffle of the exam question card counter according to claim 4, characterized in that, The plug is inserted into the socket.

6. The support baffle of the exam question card counter according to claim 1, characterized in that, The front curved plate (51) and the rear curved plate (53) are respectively inserted into the top of the front baffle (52) and the rear baffle (54).

Images