Volleyball padding tester

Abstract

The utility model relates to the technical field of volleyball testing, and particularly discloses a volleyball padding tester which comprises a base and a supporting rod connected with the base, and a lifting rod is arranged on one side of the supporting rod and is parallel to the supporting rod; a dovetail block is arranged on one side of the lifting rod, a dovetail groove matched with the dovetail block is vertically formed in the rod wall of the supporting rod, and a fixing mechanism for fixing the dovetail block is arranged on the upper side of the dovetail groove. The test rod is arranged at the top end of the lifting rod, an infrared sensor is arranged on the test rod, a shell is fixedly arranged on the test rod, and a locking mechanism is arranged between the shell and the lifting rod. The volleyball dig score can be accurately tested, and when the tester is not used, the test rod can be quickly folded, so that the transverse occupied space is reduced, and the use convenience of the tester is improved.

Description

Technical Field

[0001] This utility model relates to the field of volleyball testing technology, specifically a volleyball ball-passing tester. Background Technology

[0002] Volleyball passing is a technique that uses the coordinated force of the whole body and the arm to bounce the ball off the passing surface. In volleyball passing tests, the number of passes made by the students needs to be counted to determine their test scores. The volleyball passing testing device can automatically calculate the number of passes.

[0003] In existing technologies, when using a volleyball passing tester to test volleyball passing, the test rod is fixed horizontally on the instrument. After the test is completed, it is not convenient to quickly retract the test rod, and the test rod occupies a large amount of space laterally, resulting in poor convenience of the tester. Therefore, we have introduced the volleyball passing tester. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a volleyball passing tester that can accurately test volleyball passing scores and is easy to use.

[0005] The technical solution of this utility model is a volleyball ball-passing tester, including a base and a support rod connected to the base. A lifting rod is arranged on one side of the support rod and is parallel to the support rod. A dovetail block is provided on one side of the lifting rod. A dovetail groove that cooperates with the dovetail block is vertically provided on the wall of the support rod. A fixing mechanism for fixing the dovetail block is provided on the upper side of the dovetail groove.

[0006] A test rod is set at the top of the lifting rod, an infrared sensor is provided on the test rod, a housing is fixedly provided on the test rod, and a locking mechanism is provided between the housing and the lifting rod.

[0007] According to the volleyball ball-passing tester of this utility model, the fixing mechanism includes a screw, and the upper side of the dovetail groove is provided with a threaded hole for the screw to connect. After fixing, one end of the screw abuts against the dovetail block.

[0008] According to the volleyball ball-passing tester of this utility model, a rotating wheel is fixedly provided at the end of the screw away from the dovetail block.

[0009] According to the volleyball ball-passing tester of this utility model, the locking mechanism includes a sliding rod, one end of which is fixedly connected to the upper end of the lifting rod wall, and the other end is fixedly provided with a round block; a spring is sleeved on the sliding rod.

[0010] Furthermore, the locking mechanism also includes a through hole on the side of the housing away from the test rod, and two locking rods fixedly installed on both sides of the through hole on the outside of the housing;

[0011] The slide rod is slidably disposed within the through hole, and a spring is movably sleeved on the slide rod between the through hole and the circular block; the lifting rod wall is evenly provided with locking grooves that cooperate with the locking rod. More preferably, the lifting rod wall has four locking grooves that cooperate with the locking rod.

[0012] Furthermore, the end of the locking rod that mates with the locking groove is designed as a spherical surface.

[0013] Furthermore, the diameter of the circular block is larger than the diameter of the spring.

[0014] Furthermore, the spring is always in a compressed state.

[0015] According to the volleyball ball-passing tester of this utility model, a rotating wheel is fixedly provided at the end of the screw away from the dovetail block.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This volleyball passing tester, consisting of a housing, dovetail block, infrared sensor, test rod, support rod, base, lifting rod, spring, slide rod, circular block, screw, rotating wheel, and locking rod, forms an infrared grating through infrared transmitting and receiving sensors. It determines scores and whether a height violation is insufficient based on the number, duration, and number of times the grating is blocked. The software includes a power-on detection function to alert the user to connection, motherboard, or sensor malfunctions. The device supports communication with a host computer via a 2.4G wireless module and can be charged with a lithium battery. After use, pulling the test rod moves the housing, causing the inner wall of the housing and the circular block to compress the spring. Simultaneously, the housing moves multiple locking rods to the outside of the locking slots. Rotating the test rod 90° releases it, and the spring pushes the housing, causing multiple locking rods to engage in the locking slots, thus rotating the test rod to a vertical position. This not only accurately tests volleyball passing scores but also allows for quick retraction of the test rod when not in use, reducing lateral space occupation and improving ease of use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a volleyball ball-passing tester.

[0019] Figure 2 This is a schematic diagram of the locking mechanism.

[0020] Figure 3 This is a schematic diagram of the fixed mechanism.

[0021] Figure 4 for Figure 2 An enlarged schematic diagram of part A in the middle.

[0022] Figure 5 for Figure 3 An enlarged schematic diagram of part B in the middle section.

[0023] Figure 6 This is a schematic diagram of the external structure of the shell.

[0024] In the diagram: 1. Housing; 2. Dovetail block; 3. Infrared sensor; 4. Test rod; 5. Support rod; 6. Base; 7. Lifting rod; 8. Spring; 9. Slide rod; 10. Round block; 11. Screw; 12. Rotary wheel; 13. Locking rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 As shown, the volleyball ball-passing tester includes a base 6, a support rod 5, a lifting rod 7, and a test rod 4. The support rod 5 is fixedly mounted on the upper end of the base 6. The lifting rod 7 is located on one side of the support rod 5. A dovetail block 2 is provided on one side of the lifting rod 7. The support rod 5 has a vertical dovetail groove that mates with the dovetail block 2. A fixing mechanism is provided on the upper side of the dovetail groove that can be fixed to the dovetail block 2. An infrared sensor 3 is provided on the test rod 4. The infrared sensor 3 includes an infrared emitting sensor and an infrared receiving sensor. An infrared grating can be formed by the infrared emitting sensor and the infrared receiving sensor. It is equipped with corresponding testing software. A housing 1 is fixedly mounted on the test rod 4. A locking mechanism is provided between the housing 1 and the lifting rod 7.

[0027] The fixing mechanism includes a screw 11, with a threaded hole on the upper side of the dovetail groove. The screw 11 is threaded into the threaded hole, and one end of the screw 11 abuts against the dovetail block 2. By loosening the screw 11 so that it is no longer abutting against the dovetail block 2, the lifting rod 7 can be slid up and down to adjust the height. A rotating wheel 12 is fixedly provided at the end of the screw 11 away from the dovetail block 2. The rotating wheel 12 facilitates the rotation of the screw 11 during operation.

[0028] The locking mechanism includes a slide rod 9. A through hole is provided on the side of the housing 1 away from the test rod 4. The slide rod 9 is slidably disposed in the through hole. One end of the slide rod 9 is fixedly connected to the upper end of the lifting rod 7. A round block 10 is fixedly provided at the other end of the slide rod 9. A spring 8 is movably sleeved between the slide rod 9 and the round block 10. Two locking rods 13 are fixedly provided on both sides of the through hole on the outside of the housing 1. The lifting rod 7 has four locking grooves evenly provided on its wall that cooperate with the locking rods 13. The end of the locking rod 13 that cooperates with the locking groove is a spherical surface. The spherical surface facilitates the locking rod 13 to be inserted into the locking groove. The diameter of the round block 10 is larger than the diameter of the spring 8. The round block 10 can compress the spring 8. The spring 8 is always in a compressed state. The round block 10 can also prevent the slide rod 9 from disengaging from the through hole. The locking mechanism allows the test rod to be quickly retracted, reducing the space occupied and improving the convenience of using the tester.

[0029] The operation process of this utility model:

[0030] In use, infrared transmitting and receiving sensors can form an infrared grating. The score and height violation are determined based on the number, time, and number of times the infrared grating is blocked. The software has a built-in power-on detection function that can prompt the user for abnormalities in the connection, motherboard, or sensors. The device supports communication with the host computer via a 2.4G wireless module and can be charged via a lithium battery.

[0031] 1. Power on and perform a self-test to check if the wiring is normal and if the infrared sensor is abnormal. An alarm will be displayed on the screen if there is an abnormality. 2. After the self-test, the device enters the measurement command waiting state. When the wireless start command is received, the device enters the measurement state. 3. In the measurement state, the device is timed for one minute and quickly scans the infrared sensor. The device calculates whether the ball has passed the pole and the number of times it has passed the pole based on the infrared sensor data. 4. After the timer expires, the test ends and the results are transmitted to the host device wirelessly.

[0032] After use, pull the test rod 4 horizontally. The test rod 4 moves the housing 1. The inner wall of the housing 1 and the round block 10 squeeze the spring 8. At the same time, the housing 1 drives multiple locking rods 13 to slide to the outside of the locking groove. Rotate the test rod 4 90° to release the test rod 4. The spring 8 pushes the housing 1 and drives multiple locking rods 13 to lock into the locking groove. The test rod 4 can then be rotated to a vertical position. The test rod 4 can be quickly retracted, reducing the space occupied and improving the convenience of using the tester.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A volleyball ball-passing tester, comprising a base (6) and a support rod (5) connected to the base, characterized in that: The lifting rod (7) is set on one side of the support rod (5) and is parallel to the support rod; a dovetail block (2) is provided on one side of the lifting rod (7), and a dovetail groove that cooperates with the dovetail block (2) is provided vertically on the wall of the support rod (5). A fixing mechanism for fixing the dovetail block (2) is provided on the upper side of the dovetail groove. The test rod (4) is located at the top of the lifting rod. An infrared sensor (3) is provided on the test rod (4). A housing (1) is fixedly provided on the test rod (4). A locking mechanism is provided between the housing (1) and the lifting rod (7).

2. The volleyball passing tester according to claim 1, characterized in that: The fixing mechanism includes a screw (11), and the upper side of the dovetail groove is provided with a threaded hole for the screw (11) to connect.

3. The volleyball passing tester according to claim 2, characterized in that: A rotating wheel (12) is fixed at the end of the screw (11) away from the dovetail block (2).

4. The volleyball passing tester according to claim 1, characterized in that: The locking mechanism includes a slide rod (9), one end of which is fixedly connected to the upper end of the lifting rod (7) wall, and the other end is fixedly provided with a round block (10); a spring (8) is sleeved on the slide rod (9).

5. The volleyball passing tester according to claim 4, characterized in that: The locking mechanism also includes a through hole on the side of the housing (1) away from the test rod (4), and two locking rods (13) fixedly installed on both sides of the through hole on the outside of the housing (1); The slide rod (9) is slidably disposed in the through hole, and the slide rod (9) is movably sleeved with a spring (8) between the through hole and the round block (10); the lifting rod (7) has a locking groove evenly provided on its wall to cooperate with the locking rod (13).

6. The volleyball passing tester according to claim 5, characterized in that: The end of the locking rod (13) that mates with the locking groove is spherical.

7. The volleyball passing tester according to claim 5, characterized in that: The diameter of the circular block (10) is larger than the diameter of the spring (8).

8. The volleyball ball-passing tester according to claim 4 or 5, characterized in that: The spring (8) is always in a compressed state.

Images