Adjustable paper marking machine for school

Abstract

The utility model discloses an adjustable paper marking machine for schools, which comprises a paper bin and a mobile phone clamping frame for fixing a mobile phone, an unwinding area is arranged in the paper bin, and the front wall of the paper bin is through. When test papers of different sizes are read, the first motor rotates to drive the first screw rod to rotate, a mobile phone clamped by the mobile phone clamping frame can be driven to be adjusted front and back, the second motor rotates to drive the second screw rod to rotate, the mobile phone can be driven to move left and right, and when the number of the test papers is large, the test papers can be read through the extension and retraction of the extension shaft of the electric telescopic rod. The mobile phone is fixed through the mobile phone clamping frame, the mobile phone clamping frame is detachably connected to the lower end of the second connecting block, compared with a traditional support rod, the mobile phone is more stable, and the mobile phone can be well kept in a horizontal state.

Description

Technical Field

[0001] The utility model relates to the technical field of paper marking equipment, in particular to an adjustable paper marking machine for schools. Background Art

[0002] In the prior art, in addition to completing daily tasks such as lesson preparation, tutoring, and teaching, teachers also have to mark homework and test papers. Due to the frequent exams such as in-class quizzes, weekly tests, monthly tests, and midterm exams, marking test papers has become a very arduous task. Objective questions account for a large proportion in many subjects (especially English, history, and geography). Objective questions on the market are marked by computers or servers, but the marking machines are large in size and inconvenient to move and carry, and it is difficult for each teacher to be equipped with one, making them unsuitable for marking daily exams. For this reason, there is a public technology that proposes a mobile phone marking device, wherein the mobile phone marking device includes a paper bin, a bracket, and a mobile phone clamp; the paper bin is used to store test papers; the bracket is installed on the paper bin; the mobile phone clamp is installed at one end of the bracket and is located above the paper bin, and the mobile phone clamp is used to fix the mobile phone. The mobile phone marking device provided by this technology is small in size and easy to move and carry;

[0003] However, there are still certain shortcomings in the use of the above-mentioned improved technology. First, the single-arm bracket has poor stability. Second, the sizes of test papers in different tests are different. The largest test paper can cover the bottom of the paper bin, and the small test paper covers half of the bottom of the paper bin. When marking test papers of different sizes, the mobile phone has different regional positions under the overhead projection. The bracket mentioned in the above-mentioned public technology is not convenient to adjust, and it is difficult to accurately position it, and the horizontality of the mobile phone is difficult to ensure. In order to smoothly implement the above-mentioned improved technology, it is necessary to further improve and optimize the alignment structure. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides an adjustable paper marking machine for schools.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable paper marking machine for school, comprising a paper bin and a mobile phone clamping frame for fixing a mobile phone, a roll unloading area is arranged inside the paper bin, the front wall of the paper bin is in a through shape, and two groups of connecting plates are slidably connected on the left and right sides of the paper bin through a sliding structure, a forward and backward translation drive for driving the connecting plates to slide along the sliding structure is arranged between the left wall of the paper bin and the left group of the two groups of connecting plates, the two groups of connecting plates are fixedly connected to the second fixing seat on the opposite sides, the upper walls of the two groups of the second fixing seats are fixedly connected to the fixing tube, the inner side wall of the end of the fixing tube away from the second fixing seat is slidably connected to the lifting tube, and the lifting tube and A height adjustment drive for driving the lifting tube to rise and fall is provided between the fixed tubes, and one end of the two groups of lifting tubes away from the fixed tube is commonly fixedly connected to a cross beam, and a second connecting block is slidably connected to the inner wall of the cross beam, and the second connecting block penetrates the inner wall of the cross beam and extends toward the upper and lower sides of the cross beam respectively, and a left and right translation drive for driving the second connecting block to move left and right is provided between one end of the second connecting block extending above the cross beam and the upper wall of the cross beam, and the mobile phone clamping bracket is detachably connected to one end of the second connecting block extending below the cross beam, and an adjustment panel is fixedly connected to the upper wall of the paper bin and close to the left side, and the front and rear translation drive, height adjustment drive and left and right translation drive are all electrically connected to the adjustment panel.

[0006] As a further description of the above technical solution:

[0007] The sliding structure includes two sets of slide rails and sliders. The two sets of slide rails are respectively fixedly connected to the left and right sides of the paper bin, the two sets of sliders are respectively slidably connected to the opposite sides of the two sets of slide rails, and the two sets of connecting plates are respectively fixedly connected to the opposite sides of the two sets of sliders.

[0008] As a further description of the above technical solution:

[0009] The forward and backward translation drive includes a first fixed seat, a first motor, a first screw and a first connecting block. The first fixed seat is fixedly connected to the left wall of the paper bin and close to the front end of the paper bin. The first motor is fixedly connected to the upper wall of the first fixed seat. The first screw is rotatably connected to the left side wall of the paper bin through two groups of first rotating seats and is located above the sliding structure. The end of the extended shaft of the first motor is fixedly connected to the front end of the first screw through a coupling. The first connecting block is threadedly connected to the outer wall of the first screw. The first connecting block is fixedly connected to the right wall of the connecting plate on the side away from the paper bin.

[0010] As a further description of the above technical solution:

[0011] The height adjustment drive comprises two groups of electric telescopic rods, which are respectively arranged inside two groups of fixed tubes, and the extended shaft ends of the two groups of electric telescopic rods are respectively fixedly connected to the inner upper walls of the two groups of lifting tubes.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the beam is provided with a sliding groove which penetrates vertically. The sliding groove is in the shape of an elongated strip and its length direction is parallel to the length direction of the beam. The outer wall of the second connecting block is slidably connected with the inner wall of the sliding groove.

[0014] As a further description of the above technical solution:

[0015] The left and right translation drive includes a second motor and a second screw. The second screw is rotatably connected to the upper wall of the beam through two groups of second rotating seats. The outer wall of the second screw located between the two groups of second rotating seats passes through the inner wall of the second connecting block and is threadedly connected thereto. The second motor is fixedly connected to the upper wall of the beam and is located on the left side of the second screw. The end of the shaft extending from the second motor is fixedly connected to the left end of the second screw through a coupling.

[0016] The utility model has the following beneficial effects:

[0017] Compared with the existing technology, the school uses an adjustable marking machine. When reading test papers of different sizes, the first motor rotates to drive the first screw to rotate, which can drive the mobile phone clamped by the back mobile phone clamp to adjust forward and backward. The second motor rotates to drive the second screw to rotate, which can drive the mobile phone to move left and right. When the number of papers to be marked is large, the electric telescopic rod can be extended and retracted to drive the mobile phone to rise and fall, and try to keep the marking height of each test paper consistent to improve accuracy. The mobile phone is fixed by the mobile phone clamp, and the mobile phone clamp can be detachably connected to the lower end of the second connecting block. Compared with the traditional bracket rod, it is more stable and the mobile phone can be better kept in a horizontal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the adjustable paper marking machine for school proposed by the utility model;

[0019] Figure 2 The utility model provides an adjustable marking machine for schools Figure 1 A partial enlarged view of the middle A;

[0020] Figure 3 The utility model provides an adjustable marking machine for schools Figure 1 A partial enlarged view of point B in the middle;

[0021] Figure 4 The utility model is a partial cross-sectional view of the connection structure of the fixed pipe and the lifting pipe of the adjustable paper marking machine for school use.

[0022] Legend:

[0023] 1. Paper bin; 2. Unwinding area; 3. Adjustment panel; 4. First fixed seat; 5. First motor; 6. First rotating seat; 7. First screw rod; 8. First connecting block; 9. Slide rail; 10. Slider; 11. Connecting plate; 12. Second fixed seat; 13. Fixed tube; 14. Lifting tube; 15. Crossbeam; 16. Slide groove; 17. Second connecting block; 18. Mobile phone holder; 19. Second rotating seat; 20. Second screw rod; 21. Second motor; 22. Electric telescopic rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figures 1 to 4 The utility model provides an adjustable paper marking machine for school use: comprising a paper bin 1 and a mobile phone clamping frame 18 for fixing a mobile phone, a paper bin 1 is provided with a paper unloading area 2, and the front wall of the paper bin 1 is through-shaped. The paper bin 1 in this embodiment is basically consistent with the structure of the paper bin 1 in the prior art, and can hold a maximum of A3-sized test paper. The overall structure is relatively small compared to the traditional paper marking machine, and is convenient to carry and transfer. An adjustment panel 3 is fixedly connected to the upper wall of the paper bin 1 and close to the left side, and the front and rear translation drive, the height adjustment drive, and the left and right translation drive are all electrically connected to the adjustment panel 3;

[0026] The left and right sides of the paper bin 1 are slidably connected with two groups of connecting plates 11 through a sliding structure. The sliding structure includes two groups of slide rails 9 and sliders 10. The two groups of slide rails 9 are fixedly connected to the left and right sides of the paper bin 1 respectively. The two groups of sliders 10 are slidably connected to the opposite sides of the two groups of slide rails 9 respectively. The two groups of connecting plates 11 are fixedly connected to the opposite sides of the two groups of sliders 10 respectively. Through the two groups of slide rails 9 and sliders 10, the two groups of connecting plates 11 can move forward and backward to adjust the front and rear position of the mobile phone;

[0027] A forward and backward translation drive is provided between the left wall of the paper bin 1 and one of the two groups of connecting plates 11 on the left side, and is used to drive the connecting plate 11 to slide along the sliding structure. The forward and backward translation drive includes a first fixed seat 4, a first motor 5, a first screw 7 and a first connecting block 8. The first fixed seat 4 is fixedly connected to the left wall of the paper bin 1 and is close to the front end of the paper bin 1. The first motor 5 is fixedly connected to the upper wall of the first fixed seat 4. The first screw 7 is rotatably connected to the left wall of the paper bin 1 and is located above the sliding structure through two groups of first rotating seats 6. The end of the shaft of the first motor 5 is extended through a coupling. The first connecting block 8 is fixedly connected to the front end of the first screw 7, and the first connecting block 8 is threadedly connected to the outer wall of the first screw 7. The side of the first connecting block 8 away from the paper bin 1 is fixedly connected to the right wall of the connecting plate 11. When adjusting the front and rear positions of the mobile phone, the first motor 5 is controlled to rotate by the adjusting panel 3. When the first motor 5 rotates, it drives the first screw 7 to rotate. When the first screw 7 rotates, it drives the first connecting block 8 to move forward or backward along the axis of the first screw 7 through the threaded connection relationship with the first connecting block 8, thereby driving the two groups of connecting plates 11 and the mobile phone clamping frame 18 to move forward or backward;

[0028] The two groups of connecting plates 11 are fixedly connected to the second fixing seat 12 on the opposite side, and the upper walls of the two groups of second fixing seats 12 are fixedly connected to the fixing tube 13. The inner side wall of the end of the fixing tube 13 away from the second fixing seat 12 is slidably connected to the lifting tube 14. A height adjustment drive for driving the lifting tube 14 to rise and fall is provided between the lifting tube 14 and the fixing tube 13. The height adjustment drive includes two groups of electric telescopic rods 22, which are respectively arranged inside the two groups of fixing tubes 13. The extended shaft ends of the two groups of electric telescopic rods 22 are respectively fixedly connected to the inner upper walls of the two groups of lifting tubes 14. When the number of papers to be reviewed is large, the height of the mobile phone needs to be raised accordingly, otherwise it needs to be lowered. The lifting tube 14 is controlled to rise and fall by adjusting the panel 3, which drives the mobile phone clamping frame 18 to rise and fall;

[0029] The ends of the two groups of lifting tubes 14 away from the fixed tube 13 are commonly fixedly connected with a cross beam 15, and the inner wall of the cross beam 15 is slidably connected with a second connecting block 17. The inner wall of the cross beam 15 is provided with a slide groove 16 which passes through from top to bottom. The slide groove 16 is in a long strip shape and its length direction is parallel to the length direction of the cross beam 15. The outer wall of the second connecting block 17 is slidably connected with the inner wall of the slide groove 16. The mobile phone clamping frame 18 is detachably connected to the end of the second connecting block 17 extending below the cross beam 15. The detachable connection mode of the mobile phone clamping frame 18 makes it possible to replace the mobile phone clamping frame 18 of different sizes according to different mobile phone models.

[0030] The second connecting block 17 passes through the inner wall of the beam 15 and extends toward the upper and lower sides of the beam 15 respectively. A left-right translation drive for driving the second connecting block 17 to move left and right is arranged between one end of the second connecting block 17 extending above the beam 15 and the upper wall of the beam 15. The left-right translation drive includes a second motor 21 and a second screw 20. The second screw 20 is rotatably connected to the upper wall of the beam 15 through two groups of second rotating seats 19. The outer wall of the second screw 20 located between the two groups of second rotating seats 19 passes through the inner wall of the second connecting block 17 and is threadedly connected thereto. The second motor 21 is fixedly connected to the upper wall of the beam 15 and is located on the left side of the second screw 20. The end of the shaft extending from the second motor 21 is fixedly connected to the left end of the second screw 20 through a coupling. When the left and right position of the mobile phone needs to be adjusted, the second motor 21 is controlled to rotate through the adjustment panel 3 to drive the second screw 20 to rotate, thereby driving the second connecting block 17 to move left and right along the axis of the second screw 20.

[0031] Working principle: When adjusting the front and rear positions of the mobile phone, the first motor 5 is controlled to rotate by adjusting the panel 3. When the first motor 5 rotates, it drives the first screw 7 to rotate. When the first screw 7 rotates, it drives the first connecting block 8 to move forward or backward along the axis of the first screw 7 through the threaded connection relationship with the first connecting block 8, thereby driving the two sets of connecting plates 11 and the mobile phone clamping frame 18 to move forward or backward. When the number of papers to be reviewed is large, the height of the mobile phone needs to be raised accordingly, otherwise it needs to be lowered. The lifting tube 14 is controlled to rise and fall by adjusting the panel 3, driving the mobile phone clamping frame 18 to rise and fall. When the left and right position of the mobile phone needs to be adjusted, the second motor 21 is controlled to rotate by adjusting the panel 3, driving the second screw 20 to rotate, and then driving the second connecting block 17 to move left and right along the axis of the second screw 20; the mobile phone clamping frame 18 is detachably connected to the end of the second connecting block 17 extending below the crossbeam 15. The detachable connection method of the mobile phone clamping frame 18 makes it possible to replace mobile phone clamping frames 18 of different sizes according to different mobile phone models; through the two sets of slide rails 9 and sliders 10, the two sets of connecting plates 11 can move forward and backward to adjust the front and rear position of the mobile phone.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable paper marking machine for school use, comprising a paper bin (1) and a mobile phone holder (18) for fixing a mobile phone, characterized in that: The paper bin (1) is provided with an unwinding area (2) inside. The front wall of the paper bin (1) is in a through shape. The left and right sides of the paper bin (1) are slidably connected with two groups of connecting plates (11) through a sliding structure. A forward and backward translation drive for driving the connecting plates (11) to slide along the sliding structure is provided between the left wall of the paper bin (1) and the left side of the two groups of connecting plates (11). The two groups of connecting plates (11) are fixedly connected with a second fixed seat (12) on the opposite sides. The upper walls of the two groups of the second fixed seats (12) are fixedly connected with a fixing tube (13). The inner side wall of one end of the fixing tube (13) away from the second fixed seat (12) is slidably connected with a lifting tube (14). A height adjustment drive for driving the lifting tube (14) to move up and down is provided between the lifting tube (14) and the fixing tube (13). The two groups of The end of the lifting tube (14) away from the fixed tube (13) is fixedly connected to the cross beam (15), and the inner wall of the cross beam (15) is slidably connected to the second connecting block (17), the second connecting block (17) penetrates the inner wall of the cross beam (15) and extends toward the upper and lower sides of the cross beam (15), respectively, and a left and right translation drive for driving the second connecting block (17) to move left and right is arranged between the end of the second connecting block (17) extending above the cross beam (15) and the upper wall of the cross beam (15), and the mobile phone clamping frame (18) is detachably connected to the end of the second connecting block (17) extending below the cross beam (15), and an adjustment panel (3) is fixedly connected to the upper wall of the paper bin (1) and close to the left side, and the front and rear translation drive, the height adjustment drive and the left and right translation drive are all electrically connected to the adjustment panel (3).

2. The adjustable marking machine for school use according to claim 1, characterized in that: The sliding structure comprises two groups of slide rails (9) and sliders (10); the two groups of slide rails (9) are respectively fixedly connected to the left and right sides of the paper bin (1); the two groups of sliders (10) are respectively slidably connected to the opposite sides of the two groups of slide rails (9); and the two groups of connecting plates (11) are respectively fixedly connected to the opposite sides of the two groups of sliders (10).

3. The adjustable marking machine for school use according to claim 2, characterized in that: The forward and backward translation drive comprises a first fixed seat (4), a first motor (5), a first screw (7) and a first connecting block (8); the first fixed seat (4) is fixedly connected to the left wall of the paper bin (1) and close to the front end of the paper bin (1); the first motor (5) is fixedly connected to the upper wall of the first fixed seat (4); the first screw (7) is rotatably connected to the left wall of the paper bin (1) and is located above the sliding structure through two groups of first rotating seats (6); the protruding shaft end of the first motor (5) is fixedly connected to the front end of the first screw (7) through a coupling; the first connecting block (8) is threadedly connected to the outer wall of the first screw (7); and the first connecting block (8) is fixedly connected to the right wall of the connecting plate (11) on the side away from the paper bin (1).

4. The adjustable marking machine for school use according to claim 3, characterized in that: The height adjustment drive comprises two groups of electric telescopic rods (22), the two groups of electric telescopic rods (22) are respectively arranged inside two groups of fixed tubes (13), and the extended shaft ends of the two groups of electric telescopic rods (22) are respectively fixedly connected to the inner upper walls of the two groups of lifting tubes (14).

5. The adjustable marking machine for school use according to claim 4, characterized in that: The inner wall of the cross beam (15) is provided with a sliding groove (16) which penetrates vertically. The sliding groove (16) is in the shape of an elongated strip and its length direction is parallel to the length direction of the cross beam (15). The outer wall of the second connecting block (17) is slidably connected to the inner wall of the sliding groove (16).

6. The adjustable marking machine for school use according to claim 5, characterized in that: The left-right translation drive comprises a second motor (21) and a second screw (20); the second screw (20) is rotatably connected to the upper wall of the cross beam (15) through two sets of second rotating seats (19); the outer wall of the second screw (20) located between the two sets of second rotating seats (19) passes through the inner wall of the second connecting block (17) and is threadedly connected thereto; the second motor (21) is fixedly connected to the upper wall of the cross beam (15) and is located on the left side of the second screw (20); the end of the shaft extending from the second motor (21) is fixedly connected to the left end of the second screw (20) through a coupling.

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