Automatic counting device for volleyballs padded on wall

Abstract

The utility model discloses a volleyball-to-wall pad ball automatic counting device which comprises two supports, the side walls of the two supports are respectively provided with an infrared sensor and an infrared receiver, telescopic reinforced supporting rods are installed outside the supports, the supports are installed at the tops of moving seats, the moving seats are connected together through telescopic square pipes, and the telescopic square pipes are connected with the supports. The top of the moving seat is rotationally connected with a lead screw, the top of the lead screw is rotationally connected to the top end of the inner cavity of the support, and the exterior of the lead screw is in threaded connection with a lifting block. The movable seats, the telescopic square pipes, the lead screws, the lifting blocks and the driving parts are designed, the two movable seats are connected together through the telescopic square pipes, the two supports are installed at the tops of the movable seats, the overall stability is good, overall transportation can be achieved in the transportation process, one-by-one carrying is not needed, meanwhile, the two lead screws rotate together, and the lifting effect is good. And therefore, the lifting block drives the infrared sensor and the infrared receiver to move up and down together for height adjustment, convenience is achieved, the adjustment precision is high, and the problem that in the prior art, height adjustment is inconvenient is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to volleyball training device design technical field especially, it is a kind of volleyball wall pad ball automatic counting device. BACKGROUND

[0002] The volleyball wall pad ball training is a kind of training method that effectively improves volleyball skill and reaction ability, and the wall is used to practice receiving and serving in training, stands at the proper position from wall, receives ball with arm or palm and tries to hit ball to wall, which helps to improve reaction speed and eye-hand coordination.

[0003] In the traditional volleyball wall pad ball training, counting usually relies on manual, i.e. the coach or trainer manually records pad ball times. This way has many limitations, for example, it needs special personnel to count, increases training cost, or manual counting is easily affected by factors such as distraction and fatigue, leading to inaccurate counting, and the coach or trainer needs to frequently pay attention to counting, which may distract attention from the technical action of students, affecting training effect, and it is not practical enough, so the existing improved equipment uses infrared sensing equipment for training, for example, the patent number CN210674170U announces a kind of volleyball wall pad ball automatic counting device, when the moving track of volleyball passes through the infrared signal detection plane formed between infrared emitter and infrared receiver, the infrared receiving signal received by infrared receiver is interrupted, and the interruption information is transmitted to the main control board by infrared receiver, and the main control board records interruption times information, and the specific pad ball times are processed by built-in processing program.

[0004] The above scheme effectively improves the efficiency of training, but still has certain deficiencies, because the height of contact with wall is different for different training, so the height of infrared receiver needs to be adjusted, but the height of traditional device is inconvenient to adjust, for example, it is adjusted by bolt and different bolt hole butt joint, not only laborious, but also needs to be adjusted separately on both sides to align, which is very troublesome, and the two brackets of traditional design are not good in integrity, and it is very inconvenient to carry.

[0005] Therefore, the applicant proposes a kind of volleyball wall pad ball automatic counting device to solve the problem. UTILITY MODEL CONTENT

[0006] The utility model provides a kind of volleyball wall pad ball automatic counting device, solves the problem mentioned in the above background.

[0007] In order to solve the above technical problems, the utility model provides a volleyball wall pad ball automatic counting device, two supports of infrared sensor and infrared receiver are installed on the side wall respectively, the support is externally installed with telescopic reinforced support, the support is installed on the top of mobile seat, the mobile seat is connected together through telescopic square tube, the mobile seat top is rotatably connected with lead screw, the top of lead screw is rotatably connected with the top end in the cavity of support, the external thread of lead screw is connected with lifting piece, the protruding block on one side of two lifting pieces is respectively installed with infrared sensor and infrared receiver, and the driving part is butted between two mobile seats, and the driving part is used for driving two lead screws to rotate synchronously.

[0008] Preferably, the driving part includes a bevel gear one rotatably connected to the side wall of the inner cavity of the mobile seat, the bevel gear one is engaged with a bevel gear two, the bevel gear two is rotatably connected to the top end inside the mobile seat and butts against the rotating shaft of the bottom of the lead screw, and the rotating shafts of the bevel gears inside the mobile seats on both sides jointly butt against a synchronous rod, a motor for driving the bevel gear one to rotate is installed on the side wall of one mobile seat.

[0009] Preferably, the synchronous rod includes a cylinder rod and a solid rod, the cylinder rod is sleeved outside the solid rod, the cylinder rod and the solid rod butt against the rotating shafts of two bevel gears one respectively, the outer wall of the solid rod is symmetrically fixed with two protruding blocks, and the protruding blocks are clamped in the grooves in the inner wall of the cylinder rod.

[0010] Preferably, the telescopic square tube includes a hollow square tube one and a hollow square tube two, the hollow square tube one is slidably sleeved outside the hollow square tube two, and the hollow square tube one and the hollow square tube two are fixed on the side walls of two mobile seats respectively, and the cylinder rod and the solid rod are located inside the hollow square tube one and the hollow square tube two.

[0011] Two manual bolts are threadedly connected on the hollow square tube one, and a row of bolt holes corresponding to the manual bolts are arranged on the side wall of the hollow square tube two.

[0012] Preferably, a layer of rubber pad is bonded on the top surface of the hollow square tube one and the hollow square tube two, and the rubber pad on the top surface of the hollow square tube two slides on the top end inside the hollow square tube one.

[0013] Preferably, the front surface of the support where the infrared sensor is installed is provided with an integrated scale.

[0014] Preferably, one end of the infrared sensor and the infrared receiver is provided with a threaded head, and the threaded head is threadedly connected in the threaded groove of the protruding block on one side of the lifting piece.

[0015] Preferably, L-shaped plates are fixed on both sides of the mobile seat, triangular reinforcing blocks are fixed on the top of the L-shaped plates, and lockable casters are installed on the bottom of the L-shaped plates.

[0016] Compared with the related art, the utility model provides a volleyball wall pad ball automatic counting device with the following beneficial effects:

[0017] The utility model discloses a mobile seat, telescopic square tube, screw rod, lifting block and drive part are designed, and two mobile seats are connected together through telescopic square tube, and two supports are installed on the top of mobile seat, so that the overall stability is very good, and the integral transportation can be transported when transporting, and the two screw rods rotate together, and then make lifting block drive infrared sensor and infrared receiver move up and down together and carry out height adjustment, which is not only convenient but also has high adjustment precision, and the inconvenient height adjustment in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is whole three-dimensional section structure schematic diagram of the utility model;

[0020] Figure 3 It is telescopic square tube three-dimensional connection structure schematic diagram of the utility model;

[0021] Figure 4 It is drive part three-dimensional structure schematic diagram of the utility model;

[0022] Figure 5 It is the utility model's Figure 5 It is the enlarged structure schematic diagram of A place in middle;

[0023] Figure 6 It is lifting block three-dimensional structure schematic diagram of the utility model.

[0024] Mark number in drawing: 1, support;11, reinforced strut;12, infrared sensor;13, infrared receiver;14, scale;2, mobile seat;21, screw rod;22, lifting block;23, L-shaped plate;24, trundle;3, telescopic square tube;31, hollow square tube one;32, hollow square tube two;33, manual bolt;34, rubber pad;4, drive part;41, bevel gear one;42, bevel gear two;43, synchronous rod;431, cylinder rod;432, solid rod;433, convex strip block;44, motor. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments;Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of the utility model protection.

[0026] By Figures 1-6The utility model provides a volleyball wall pad ball automatic counting device, including two supports 1 of infrared sensor 12 and infrared receiver 13 are installed respectively in side wall, the telescopic reinforced support 11 is installed outside support 1, support 1 is installed at the top of mobile seat 2, mobile seat 2 is connected together through telescopic square tube 3, mobile seat 2 top rotary joint screw rod 21, screw rod 21 top rotary joint in the inner chamber top end of support 1, screw rod 21 external thread connection lifting piece 22, infrared sensor 12 and infrared receiver 13 are installed respectively on the protruding block of one side of two lifting pieces 22, and the butt joint of two mobile seats 2 has drive part 4, and drive part 4 is used to drive two screw rods 21 synchronous rotation, and drive part 4 includes bevel gear no. 1 41 that rotates and connects in the inner chamber lateral wall of mobile seat 2, and bevel gear no. 1 41 is engaged with bevel gear no. 2 42, and bevel gear no. 2 42 is rotatably connected to the inner top end of mobile seat 2 and butt joint screw rod 21 bottom pivot, and the pivot of bevel gear no. 2 42 in the inner chamber of two mobile seats 2 is butt joint synchronous rod 43, and one mobile seat 2 lateral wall is provided with motor 44 that drives bevel gear no. 1 41 rotation.

[0027] Through the design of mobile seat 2, telescopic square tube 3, screw rod 21, lifting piece 22 and drive part 4, telescopic square tube 3 connects two mobile seats 2 together, and two supports 1 are installed at the top of mobile seat 2, so that the overall stability is very good, and the whole can be transported when transporting, and it is not necessary to carry one by one, after carrying to the side of the wall surface of specified training, pulling out the reinforced support 11 reinforced support (reinforced support 11 is the existing design), starting motor 44 makes two bevel gear no. 1 41 rotate together through synchronous rod 43, in turn makes bevel gear no. 2 42 rotate, makes two screw rods 21 rotate together, in turn makes lifting piece 22 drive infrared sensor 12 and infrared receiver 13 move up and down together and adjusts height, then starts infrared sensor 12 and infrared receiver 13 and carries out the ball throwing training, forms an infrared signal detection plane on the road that must be passed in volleyball trajectory.When the volleyball passes through the plane, the transmission of infrared signal is blocked, thereby triggering the counting mechanism to carry out automatic counting training, it is noted that the transmission and display of detection signal are the existing design means and have been shown in the comparison file, and here is not repeated.

[0028] Synchronous rod 43 includes cylinder rod 431 and solid rod 432, cylinder rod 431 is sleeved outside solid rod 432, cylinder rod 431 and solid rod 432 butt joint two bevel gear no. 1 41 pivots respectively, and the outer wall of solid rod 432 is fixed with two convex strip blocks 433 symmetrically, and the convex strip blocks 433 are clamped in the recess in the inner wall of cylinder rod 431;

[0029] The telescopic square tube 3 comprises a hollow square tube one 31 and a hollow square tube two 32, the hollow square tube one 31 is sleeved outside the hollow square tube two 32, and the hollow square tube one 31 and the hollow square tube two 32 are fixed on the side walls of the two moving seats 2 respectively, and the cylinder rod 431 and the solid rod 432 are located inside the hollow square tube one 31 and the hollow square tube two 32, the hollow square tube one 31 is threadedly connected with two manual bolts 33, and the side wall of the hollow square tube two 32 is provided with a row of bolt holes corresponding to the manual bolts 33.

[0030] The telescopic square tube 3 and the synchronous rod 43 are combined and telescoped, when the distance between the supports 1 is adjusted according to the test requirements, for example, a beginner needs a large distance to avoid hitting the support 1 by mistake, and a skilled person can reduce the distance, and then reduce the position of the wall cushion ball, at this time, the manual bolts 33 can be removed to stretch the hollow square tube one 31 and the hollow square tube two 32, and then the new bolt holes are connected by using the manual bolts 33 again, at the same time, the cylinder rod 431 and the solid rod 432 are also stretched, and the solid rod 432 is engaged with the inside of the cylinder rod 431 through the convex block 433, so that they can be rotated together, without affecting the synchronous rotation of the two bevel gears one 41, which is very practical.

[0031] The top surfaces of the hollow square tube one 31 and the hollow square tube two 32 are bonded with a layer of rubber pad 34, and the rubber pad 34 on the top surface of the hollow square tube two 32 slides inside the top end of the hollow square tube one 31.

[0032] During training, the ball may hit the hollow square tube one 31 and the hollow square tube two 32 by mistake, so the rubber pad 34 can play a buffering role to avoid instability or deviation caused by collision.

[0033] The front surface of the support 1 on which the infrared sensor 12 is installed is provided with an integrated scale 14, one end of the infrared sensor 12 and the infrared receiver 13 is provided with a threaded head 15, the threaded head 15 is threadedly connected in the threaded groove of the protrusion on one side of the lifting block 22, the two sides of the moving seat 2 are fixed with L-shaped plates 23, the top of the L-shaped plate 23 is fixed with a triangular reinforcing block 25, and the bottom of the L-shaped plate 23 is provided with lockable casters 24.

[0034] In the overall performance optimization design, the scale 14 is convenient for accurate height adjustment, the threaded head 15 makes the infrared sensor 12 and the infrared receiver 13 convenient to disassemble and assemble, and finally the casters 24 cooperate with the L-shaped plates 23 to drive the whole to move conveniently, and the triangular reinforcing block 25 strengthens the strength of the L-shaped plate 23.

[0035] Working principle: first through the caster 24 to move the device to the side of the training wall, in accordance with the test requirements to adjust the spacing between the support 1, can be removed manually bolt 33 with hollow square tube 1 31 and hollow square tube 2 32 stretch, and then use the manual bolt 33 butt joint new bolt hole, at the same time, the cylinder rod 431 and solid rod 432 will stretch, then pull out the reinforced support 11 reinforced support contact ground, start the motor 44 so that the two bevel gear 1 41 through the synchronous rod 43 together, in turn, so that the bevel gear 2 42 rotation, so that the two lead screw 21 together, in turn, so that the lifting block 22 driven infrared sensor 12 and infrared receiver 13 together up and down to move the height adjustment, then start the infrared sensor 12 and infrared receiver 13 to throw ball training, in the volleyball movement trajectory of the road to form an infrared signal detection plane. When the volleyball through the plane, will block the transmission of the infrared signal, so as to trigger the counting mechanism for automatic counting training.

[0036] It should be noted that in this document, the terms "first" and "second" and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic volleyball counter-counting device, comprising two brackets (1) with infrared sensors (12) and infrared receivers (13) respectively mounted on their side walls, and a retractable reinforcing rod (11) mounted on the outside of the brackets (1), characterized in that: The bracket (1) is installed on the top of the movable seat (2), and the movable seat (2) is connected together by a telescopic square tube (3). The top of the movable seat (2) is rotatably connected to a lead screw (21), and the top of the lead screw (21) is rotatably connected to the top of the inner cavity of the bracket (1). The lead screw (21) is externally threaded to a lifting block (22). An infrared sensor (12) and an infrared receiver (13) are respectively installed on the protrusions on one side of the two lifting blocks (22). A drive unit (4) is connected between the two movable seats (2), and the drive unit (4) is used to drive the two lead screws (21) to rotate synchronously.

2. The automatic volleyball counter-counting device according to claim 1, characterized in that, The drive unit (4) includes a bevel tooth (41) rotatably connected to the inner wall of the movable seat (2). The bevel tooth (41) meshes with a bevel tooth (42). The bevel tooth (42) is rotatably connected to the top of the movable seat (2) and connected to the bottom shaft of the lead screw (21). The shafts of the bevel teeth (42) inside the movable seats (2) on both sides are connected to a synchronizing rod (43). A motor (44) for driving the bevel tooth (41) to rotate is installed on one side wall of the movable seat (2).

3. The automatic volleyball counter-counting device according to claim 2, characterized in that, The synchronizing rod (43) includes a cylindrical rod (431) and a solid rod (432). The cylindrical rod (431) is sleeved on the outside of the solid rod (432). The cylindrical rod (431) and the solid rod (432) are respectively connected to two bevel gear shafts (41). Two convex blocks (433) are symmetrically fixed on the outer wall of the solid rod (432). The convex blocks (433) are stuck in the grooves on the inner wall of the cylindrical rod (431).

4. The automatic volleyball counter-counting device for wall-passing according to claim 3, characterized in that, The telescopic square tube (3) includes a hollow square tube one (31) and a hollow square tube two (32). The hollow square tube one (31) is slidably sleeved on the outside of the hollow square tube two (32), and the hollow square tube one (31) and the hollow square tube two (32) are respectively fixed on the side walls of two movable seats (2), and the cylinder rod (431) and the solid rod (432) are located inside the hollow square tube one (31) and the hollow square tube two (32); Two manual bolts (33) are threaded onto the hollow square tube one (31), and a row of bolt holes corresponding to the manual bolts (33) is provided on the side wall of the hollow square tube two (32).

5. The automatic volleyball counter-counting device according to claim 4, characterized in that, A rubber pad (34) is bonded to the top surface of both the first hollow square tube (31) and the second hollow square tube (32), and the rubber pad (34) on the top surface of the second hollow square tube (32) slides inside the top of the first hollow square tube (31).

6. The automatic volleyball counter-counting device according to claim 1, characterized in that, The bracket (1) on which the infrared sensor (12) is mounted has an integrated scale (14) on its front side.

7. The automatic volleyball counter-counting device according to claim 1, characterized in that, One end of the infrared sensor (12) and the infrared receiver (13) is provided with a threaded head (15), which is threadedly connected to the threaded groove of the protrusion on one side of the lifting block (22).

8. The automatic volleyball counter-counting device according to claim 1, characterized in that, The movable seat (2) is fixed with L-shaped plates (23) on both sides, and a triangular reinforcing block (25) is fixed on the top of the L-shaped plate (23). Lockable casters (24) are installed at the bottom of the L-shaped plate (23).

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