Intelligent basketball collecting device for basketball teaching

Abstract

The invention discloses an intelligent basketball collecting device for basketball teaching, and belongs to the technical field of sports equipment collection, the intelligent basketball collecting device comprises a support, universal wheels and a projection sleeve, and further comprises a collecting mechanism, the collecting mechanism comprises a mounting block arranged above the projection sleeve, a net rack is fixedly connected above the mounting block, and an elastic net is fixedly connected above the net rack; a plurality of adjusting rods are rotatably connected to the upper portion of the mounting block, the ends, away from the mounting block, of the adjusting rods are fixedly connected to the upper portion of the elastic net, an opening adjusting assembly used for adjusting the opening size of the elastic net is arranged in the mounting block, and a height adjusting assembly used for adjusting the height of the elastic net and a projection mechanism are arranged on one side of the support. According to the basketball collecting device, the problems that the size and height of a basketball inlet of an existing basketball collecting device are fixed and cannot be adjusted according to the actual situation, and the height of the basketball projected by the basketball collecting device is too high, so that the use safety of a user is not facilitated are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of sports equipment collection, and in particular relates to a basketball intelligent collection device for basketball teaching. Background Art

[0002] Sports equipment is a general term for various apparatuses, equipment and supplies used in competitive sports games and fitness exercises. Sports equipment and sports are interdependent and promote each other. The popularization of sports and the diversification of sports events have led to the development of the types and specifications of sports equipment. Basketball is one of the sports, which is a hand-centered physical confrontational sport. In daily training and teaching, the athlete's pitching hit rate is the most important link, so high-intensity training is required to ensure the improvement of the hit rate and improve their own level. At this time, an automatic basketball collection device that can collect basketballs and quickly launch basketballs is needed to carry out a large number of teaching and training to improve the efficiency of teaching and training.

[0003] The current basketball collection device also generally has the following problems: 1. When the existing basketball collection device collects basketballs, the size and height of the goal hole cannot be freely adjusted, which makes the collection device unable to be applied to basketball stands of different heights. At the same time, the size of the goal hole cannot be changed according to the specific technical level of the teaching and training personnel, resulting in the basketball cannot be effectively collected when the projection angle deviation is too large, which will affect the training effect of the trainers.

[0004] 2. When existing basketball collecting devices project the collected basketballs, they are mostly projected upwards. The basketballs projected by this projection method are usually projected too high to meet the requirements of a longer projection distance, which can easily injure the person receiving the ball, and is not conducive to the safety of the user. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides an intelligent basketball collection device for basketball teaching, which has the advantages of being able to freely adjust the height and size of the goal hole and being able to better project the basketball to the trainees. It solves the problems that the size and height of the goal hole of the existing basketball collection device are fixed and cannot be adjusted according to actual conditions, and the height of the projected basketball is too high, which is not conducive to the safety of users.

[0006] The present invention is achieved in this way. A basketball intelligent collection device for basketball teaching includes a support, a universal wheel is fixedly connected at the bottom of the support, a projection sleeve is arranged above the support, and also includes a collection mechanism, the collection mechanism includes a mounting block arranged above the projection sleeve, a grid is fixedly connected above the mounting block, an elastic net is fixedly connected above the grid, a plurality of adjustment rods are rotatably connected above the mounting block, one end of the adjustment rod away from the mounting block is fixedly connected to the top of the elastic net, an opening adjustment component for adjusting the opening size of the elastic net is arranged inside the mounting block, a height adjustment component for adjusting the height of the elastic net is arranged on one side of the support, and a projection mechanism, the projection mechanism is arranged inside the projection sleeve, and is used to obliquely project the basketball in the elastic net to above the ground.

[0007] As a preferred embodiment of the present invention, the opening adjustment component includes an installation cavity opened inside the installation block, the lower end of the adjustment rod extends into the installation cavity, a telescopic rod is slidably inserted in the lower end of the adjustment rod, a sliding column is fixedly connected to the middle of the installation cavity, and an opening driving unit for driving the elastic net opening for adjustment is provided on the outer side of the sliding column.

[0008] As a preferred embodiment of the present invention, the opening drive unit includes a sliding block slidably connected to the outside of the sliding column, a first electric push rod is fixedly connected below the upper surface of the installation cavity, the output end of the first electric push rod is fixedly connected to the top of the sliding block, and the end of the telescopic rod away from the adjusting rod is rotatably connected to the sliding block.

[0009] As a preferred embodiment of the present invention, the height adjustment assembly includes a support arm fixedly connected above the support, a connecting arm is slidably connected above the support arm, the connecting arm is fixedly connected to one side of the mounting block, a second electric push rod is fixedly connected to one side of the support arm, and the output end of the second electric push rod is fixedly connected to the connecting arm.

[0010] As a preferred embodiment of the present invention, the height adjustment assembly also includes a receiving groove opened below the mounting block, a connecting hole connected to the inside of the elastic net is opened above the receiving groove, an elastic tube is fixedly connected below the upper surface of the receiving groove, and the lower end of the elastic tube is rotatably connected to the top of the projection sleeve.

[0011] As a preferred embodiment of the present invention, the projection mechanism includes a square cavity opened inside the projection sleeve, a first horizontal channel communicating with the outside is opened on one side of the square cavity, a second horizontal channel communicating with the outside is opened on the side of the square cavity away from the first horizontal channel, a vertical conical channel communicating with the inside of the elastic tube is opened above the square cavity, an inclined channel inclined downward relative to the second horizontal channel is opened in the projection sleeve, the inclined channel is communicated with the inside of the second horizontal channel, a first projection unit is arranged in the first horizontal channel, and a second projection unit is arranged in the second horizontal channel.

[0012] As a preferred embodiment of the present invention, the first projection unit includes a mounting frame fixedly connected to one side of the projection sleeve, a third electric push rod is fixedly connected to the side of the mounting frame close to the first horizontal channel, an output end of the third electric push rod is fixedly connected to a piston frame, an end of the piston frame away from the third electric push rod is fixedly connected to a main piston, the main piston can slide inside the first horizontal channel and the second horizontal channel, a fourth electric push rod is fixedly connected to the piston frame, the main piston is sleeved on the outside of the fourth electric push rod, and a pushing soft sleeve is fixedly connected to the output end of the fourth electric push rod.

[0013] As a preferred embodiment of the present invention, the second projection unit includes a push rod frame fixedly connected to the projection sleeve on a side away from the mounting frame, a fifth electric push rod is fixedly connected to the push rod frame on a side close to the second horizontal channel, a secondary piston is fixedly connected to the output end of the fifth electric push rod, and the secondary piston is slidably connected to the inside of the second horizontal channel.

[0014] As a preferred embodiment of the present invention, a motor slot is opened under the support, a driving motor is fixedly connected inside the motor slot, an output end of the driving motor extends to the top of the support and is fixedly connected to the bottom of the projection sleeve, and an identification head is fixedly connected to the side of the projection sleeve away from the support arm.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses an opening adjustment component and a height adjustment component to adjust the opening size and height of the elastic net, so that the collection device can be suitable for trainees with different technical levels, thereby effectively improving the collection and use effects of the collection device. At the same time, by tilting the basketball onto the ground through the projection mechanism, the basketball is effectively prevented from being projected upward and difficult to receive, thereby ensuring the safety of the user.

[0016] 2. The present invention uses a sliding block to efficiently drive the adjustment rods to move closer and farther away, thereby adjusting the opening size of the elastic net, and uses a second electric push rod to adjust the height of the elastic net according to different usage requirements, thereby effectively improving the applicability of the equipment.

[0017] 3. The present invention uses the main piston and the secondary piston to effectively improve the basketball projection effect of the equipment. At the same time, by projecting the basketball onto the ground, the basketball can move more smoothly and stably to the feet of the trainees, ensuring that the equipment has a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure provided by an embodiment of the present invention; Figure 2 is another perspective structure schematic diagram provided by an embodiment of the present invention; Figure 3 is a schematic diagram of the internal structure of a mounting block provided by an embodiment of the present invention; Figure 4 is a side full cross-sectional view provided by an embodiment of the present invention; Figure 5 The embodiment of the present invention provides Figure 4 A partial enlarged view of the middle A; Figure 6 The embodiment of the present invention provides Figure 4 A partial enlarged view of point B in the middle; Figure 7 It is a front full sectional view provided by an embodiment of the present invention.

[0019] In the figure: 1. support; 2. universal wheel; 3. projection sleeve; 4. mounting block; 5. grid frame; 6. elastic net; 7. adjustment rod; 8. telescopic rod; 9. sliding column; 10. sliding block; 11. first electric push rod; 12. support arm; 13. connecting arm; 14. second electric push rod; 15. elastic tube; 16. mounting frame; 17. third electric push rod; 18. piston frame; 19. main piston; 20. fourth electric push rod; 21. push soft sleeve; 22. push rod frame; 23. fifth electric push rod; 24. secondary piston; 25. drive motor; 26. identification head. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0022] refer to Figures 1 to 7An intelligent basketball collection device for basketball teaching provided by an embodiment of the present invention comprises a support 1, a universal wheel 2 is fixedly connected at the bottom of the support 1, a projection sleeve 3 is arranged above the support 1, and a collection mechanism is also included, the collection mechanism comprises a mounting block 4 arranged above the projection sleeve 3, a grid frame 5 is fixedly connected above the mounting block 4, an elastic net 6 is fixedly connected above the grid frame 5, a plurality of adjustment rods 7 are rotatably connected above the mounting block 4, one end of the adjustment rod 7 away from the mounting block 4 is fixedly connected to the top of the elastic net 6, an opening adjustment component for adjusting the opening size of the elastic net 6 is arranged inside the mounting block 4, a height adjustment component for adjusting the height of the elastic net 6 is arranged on one side of the support 1, and a projection mechanism is arranged inside the projection sleeve 3, and is used to obliquely project the basketball in the elastic net 6 to above the ground.

[0023] When in use, place the device under the basketball hoop.

[0024] When the size of the opening of the elastic net 6 needs to be adjusted, the opening adjustment component is started, which will drive the adjustment rod 7 to rotate based on the rotation connection point between it and the mounting block 4, so that the adjustment rod 7 drives the upper part of the elastic net 6 to move closer or farther away from each other, thereby adjusting the opening size of the elastic net 6.

[0025] When the height of the elastic net 6 needs to be adjusted, the height adjustment component is started, which drives the mounting block 4 to move up and down, thereby driving the elastic net 6 above it to adjust its height through the mounting block 4.

[0026] The basketball collected in the elastic net 6 will fall into the projection sleeve 3. When the basketball needs to be projected, the projection mechanism is activated, which will suck the basketball into the projection mechanism and project the basketball toward the ground at an angle, so that the basketball bounces smoothly to the feet of the trainee.

[0027] With this arrangement, the opening size and height of the elastic net 6 can be adjusted using the opening adjustment component and the height adjustment component, so that the collection device can be suitable for trainees with different technical levels, thereby effectively improving the collection and use effects of the collection device. At the same time, the basketball is tilted and projected onto the ground by the projection mechanism, thereby effectively preventing the basketball from being projected upward and difficult to catch, thereby ensuring the safety of the user.

[0028] Furthermore, the opening adjustment component includes a mounting cavity opened inside the mounting block 4, the lower end of the adjusting rod 7 extends into the mounting cavity, a telescopic rod 8 is slidably inserted in the lower end of the adjusting rod 7, a sliding column 9 is fixedly connected to the middle of the mounting cavity, an opening driving unit for driving the elastic net 6 to adjust the opening is provided on the outside of the sliding column 9, the opening driving unit includes a sliding block 10 slidably connected to the outside of the sliding column 9, a first electric push rod 11 is fixedly connected below the upper surface of the mounting cavity, the output end of the first electric push rod 11 is fixedly connected to the top of the sliding block 10, and the end of the telescopic rod 8 away from the adjusting rod 7 is rotatably connected to the sliding block 10.

[0029] When the opening size of the elastic net 6 needs to be adjusted, the first electric push rod 11 is started, which will drive the sliding block 10 to slide on the outside of the sliding column 9, thereby driving the adjusting rod 7 to rotate with its rotation connection point with the mounting block 4 as the base point through the telescopic rod 8, so as to adjust the opening size of the elastic net 6. During this process, the telescopic rod 8 will perform telescopic movement in the adjusting rod 7, so as to ensure that the sliding block 10 drives the adjusting rod 7 to rotate. Through this setting, the sliding block 10 can be used to efficiently drive the adjusting rods 7 to move closer and farther away, so as to adjust the opening size of the elastic net 6, and ensure that the collecting device has higher applicability.

[0030] Furthermore, the height adjustment component includes a support arm 12 fixedly connected to the top of the support 1, a connecting arm 13 is slidably connected to the top of the support arm 12, the connecting arm 13 is fixedly connected to one side of the mounting block 4, a second electric push rod 14 is fixedly connected to one side of the support arm 12, and an output end of the second electric push rod 14 is fixedly connected to the connecting arm 13. The height adjustment component also includes a receiving groove opened below the mounting block 4, a connecting hole connected to the inside of the elastic net 6 is opened above the receiving groove, an elastic tube 15 is fixedly connected below the upper surface of the receiving groove, and the lower end of the elastic tube 15 is rotatably connected to the top of the projection sleeve 3.

[0031] When the height of the elastic net 6 needs to be adjusted, the second electric push rod 14 is started, which will push the connecting arm 13 to drive the mounting block 4 to move up and down, thereby adjusting the height of the elastic net 6. During this process, the elastic tube 15 will contract and stretch, thereby ensuring that the basketball can pass through the connecting hole and the elastic tube 15 in sequence to enter the projection sleeve 3 for projection when the elastic net 6 is at any height. Through this setting, the height of the elastic net 6 can be adjusted according to different usage heights, thereby further improving the applicability of the equipment.

[0032] Further, the projection mechanism includes a square cavity opened inside the projection sleeve 3, a first horizontal channel communicating with the outside is opened on one side of the square cavity, a second horizontal channel communicating with the outside is opened on the side of the square cavity away from the first horizontal channel, a vertical cone channel communicating with the inside of the elastic tube 15 is opened above the square cavity, an inclined channel inclined downward relative to the second horizontal channel is opened in the projection sleeve 3, the inclined channel is communicated with the inside of the second horizontal channel, a first projection unit is arranged in the first horizontal channel, a second projection unit is arranged in the second horizontal channel, the first projection unit includes a mounting frame 16 fixedly connected to one side of the projection sleeve 3, a third electric push rod 17 is fixedly connected to the side of the mounting frame 16 close to the first horizontal channel, and the third electric push rod The output end of 17 is fixedly connected to a piston rack 18, and the end of the piston rack 18 away from the third electric push rod 17 is fixedly connected to a main piston 19, and the main piston 19 can slide inside the first horizontal channel and the second horizontal channel. A fourth electric push rod 20 is fixedly connected to the piston rack 18, and the main piston 19 is sleeved on the outside of the fourth electric push rod 20. The output end of the fourth electric push rod 20 is fixedly connected to a pushing soft sleeve 21, and the second projection unit includes a push rod rack 22 fixedly connected to the side of the projection sleeve 3 away from the mounting frame 16, and the side of the push rod rack 22 close to the second horizontal channel is fixedly connected to a fifth electric push rod 23, and the output end of the fifth electric push rod 23 is fixedly connected to a secondary piston 24, and the secondary piston 24 is slidably connected to the inside of the second horizontal channel.

[0033] The collected basketball will enter the vertical cone channel through the elastic tube 15. The inner walls of the vertical cone channel, the first horizontal channel, the second horizontal channel and the inclined channel are all soft structures and have an interference fit with the basketball. The basketball entering the vertical cone channel will fit tightly with the inner wall of the vertical cone channel. In the initial state, the main piston 19 is located at one end of the first horizontal channel close to the square cavity, and the secondary piston 24 is located at one end of the second horizontal channel close to the square cavity. When the basketball falls into the vertical cone channel, the inside of the square cavity is closed. At this time, the third electric push rod 17 is started to contract, thereby driving the main piston 19 to suck the bottom basketball in the vertical cone channel into the square cavity, and finally slide out from the end of the first horizontal channel away from the square cavity, so that the square cavity returns to a normal pressure state, and then the fifth electric push rod 23 is started to contract. When it contracts to the limit, the fourth electric push rod 20 is started to push the soft sleeve 21 to push the basketball to the end of the second horizontal channel away from the square cavity. After the basketball moves to the top of the inclined channel, it will fall slightly downward. At this time, the pushing axis of the pushing soft sleeve 21 is located above the central axis of the basketball. As the pushing soft sleeve 21 continues to be pushed, the basketball will be pushed into the inclined channel and fit tightly with the outer wall of the inclined channel. Then the third electric push rod 17 is started to extend, and the fourth electric push rod 20 is started to contract as the third electric push rod 17 extends, so that the third electric push rod 17 pushes the main piston 19 to move into the second horizontal channel and gradually pushes the air in the second horizontal channel to increase pressure. After the air pressure in the second horizontal channel reaches a predetermined value, the basketball will be instantly pushed out of the inclined channel, thereby realizing the projection of the basketball, and making the basketball move smoothly to the feet of the trainer in a bouncing manner. Through this setting, the basketball projection effect of the equipment can be better improved. At the same time, by projecting the basketball to the ground, the basketball can move more smoothly and stably to the feet of the trainer, thereby ensuring that the equipment has a better use effect.

[0034] Furthermore, a motor slot is opened at the bottom of the support 1, and a driving motor 25 is fixedly connected inside the motor slot. The output end of the driving motor 25 extends to the top of the support 1 and is fixedly connected to the bottom of the projection sleeve 3. The side of the projection sleeve 3 away from the support arm 12 is fixedly connected to an identification head 26.

[0035] During training, the recognition head 26 will intelligently monitor the trainees, and follow the trainees' movements to intelligently control the direction of the projection sleeve 3 through the drive motor 25, so that the projection direction of the device is always relative to the trainees. In places with complex environments, the recognition head 26 can be temporarily closed, and the drive motor 25 can be started by remote control or other means, so as to artificially change the projection direction of the device and ensure the convenience of using the device.

[0036] Working principle of the present invention: During operation, the equipment needs to be placed below the basketball stand.

[0037] When the opening size of the elastic net 6 needs to be adjusted, the opening adjustment component can be started, which will cause the adjustment rod 7 to rotate around the connection rotation point between it and the mounting block 4, thereby driving the adjustment rod 7 to make the upper parts of the elastic net 6 approach or separate from each other, thereby achieving the purpose of adjusting the opening size of the elastic net 6.

[0038] If the height of the elastic net 6 needs to be adjusted, the height adjustment component can be activated, which will drive the mounting block 4 to move up and down, and drive the elastic net 6 above the mounting block 4 to rise and fall together, thereby achieving height adjustment.

[0039] The basketball caught by the elastic net 6 will fall into the projection sleeve 3. When the projection is ready, the projection mechanism is activated, which will suck the basketball into the interior and tilt the basketball to the ground, so that the basketball bounces to the feet of the trainee in a repeatedly bouncing manner.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A basketball intelligent collection device for basketball teaching, comprising a support (1), a universal wheel (2) fixedly connected to the bottom of the support (1), and a projection sleeve (3) arranged on the top of the support (1), characterized in that: It also comprises a collecting mechanism, the collecting mechanism comprising a mounting block (4) arranged above the projection sleeve (3), a grid frame (5) being fixedly connected above the mounting block (4), an elastic net (6) being fixedly connected above the grid frame (5), a plurality of adjusting rods (7) being rotatably connected above the mounting block (4), one end of the adjusting rod (7) being away from the mounting block (4) being fixedly connected to the top of the elastic net (6), an opening adjusting component for adjusting the opening size of the elastic net (6) being arranged inside the mounting block (4), and a height adjusting component for adjusting the height of the elastic net (6) being arranged on one side of the support (1); A projection mechanism is arranged inside the projection sleeve (3) and is used to obliquely project the basketball in the elastic net (6) above the ground.

2. A basketball intelligent collection device for basketball teaching as claimed in claim 1, characterized in that: The opening adjustment component comprises a mounting cavity opened inside the mounting block (4), the lower end of the adjustment rod (7) extending into the mounting cavity, a telescopic rod (8) slidably inserted into the lower end of the adjustment rod (7), a sliding column (9) fixedly connected to the middle of the mounting cavity, and an opening drive unit for driving the elastic net (6) to adjust the opening is arranged on the outer side of the sliding column (9).

3. A basketball intelligent collection device for basketball teaching as claimed in claim 2, characterized in that: The opening drive unit comprises a sliding block (10) slidably connected to the outside of the sliding column (9); a first electric push rod (11) is fixedly connected below the upper surface of the installation cavity; an output end of the first electric push rod (11) is fixedly connected to the top of the sliding block (10); and one end of the telescopic rod (8) away from the adjusting rod (7) is rotatably connected to the sliding block (10).

4. The basketball intelligent collection device for basketball teaching as claimed in claim 1, characterized in that: The height adjustment assembly comprises a support arm (12) fixedly connected to the upper part of the support (1); a connecting arm (13) is slidably connected to the upper part of the support arm (12); the connecting arm (13) is fixedly connected to one side of the mounting block (4); a second electric push rod (14) is fixedly connected to one side of the support arm (12); an output end of the second electric push rod (14) is fixedly connected to the connecting arm (13).

5. The basketball intelligent collection device for basketball teaching as claimed in claim 1, characterized in that: The height adjustment assembly further comprises a receiving groove provided below the mounting block (4), a connecting hole communicating with the interior of the elastic net (6) being provided above the receiving groove, an elastic tube (15) being fixedly connected below the upper surface of the receiving groove, and a lower end of the elastic tube (15) being rotatably connected to the top of the projection sleeve (3).

6. The basketball intelligent collection device for basketball teaching as claimed in claim 5, characterized in that: The projection mechanism comprises a square cavity opened inside the projection sleeve (3); a first horizontal channel communicating with the outside is opened on one side of the square cavity; a second horizontal channel communicating with the outside is opened on a side of the square cavity away from the first horizontal channel; a vertical cone channel communicating with the inside of the elastic tube (15) is opened above the square cavity; an inclined channel inclined downward relative to the second horizontal channel is opened inside the projection sleeve (3); the inclined channel is communicated with the inside of the second horizontal channel; a first projection unit is arranged in the first horizontal channel; and a second projection unit is arranged in the second horizontal channel.

7. The basketball intelligent collection device for basketball teaching as claimed in claim 6, characterized in that: The first projection unit comprises a mounting frame (16) fixedly connected to one side of the projection sleeve (3); a third electric push rod (17) is fixedly connected to the side of the mounting frame (16) close to the first horizontal channel; an output end of the third electric push rod (17) is fixedly connected to a piston frame (18); an end of the piston frame (18) away from the third electric push rod (17) is fixedly connected to a main piston (19); the main piston (19) can slide inside the first horizontal channel and the second horizontal channel; a fourth electric push rod (20) is fixedly connected to the piston frame (18); the main piston (19) is sleeved on the outside of the fourth electric push rod (20); and a push soft sleeve (21) is fixedly connected to the output end of the fourth electric push rod (20).

8. The basketball intelligent collection device for basketball teaching as claimed in claim 7, characterized in that: The second projection unit comprises a push rod frame (22) fixedly connected to a side of the projection sleeve (3) away from the mounting frame (16); a fifth electric push rod (23) is fixedly connected to a side of the push rod frame (22) close to the second horizontal channel; an output end of the fifth electric push rod (23) is fixedly connected to a secondary piston (24); and the secondary piston (24) is slidably connected to the interior of the second horizontal channel.

9. The basketball intelligent collection device for basketball teaching as claimed in claim 4, characterized in that: A motor slot is provided below the support (1), a driving motor (25) is fixedly connected inside the motor slot, an output end of the driving motor (25) extends above the support (1) and is fixedly connected to the bottom of the projection sleeve (3), and an identification head (26) is fixedly connected to a side of the projection sleeve (3) away from the support arm (12).

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