Firework product base stability detection device

Abstract

The utility model particularly relates to a firework product base stability detection device which comprises a base and a supporting plate, a spherical connecting seat is fixedly installed at the upper end of the base, a spherical connector rotationally connected with the spherical connecting seat is fixedly installed at the lower end of the supporting plate, and positioning tooth grooves are formed in the periphery of the upper end of the base and the periphery of the lower end of the supporting plate. Positioning seats are inserted and mounted in the positioning tooth grooves in the upper side and the lower side correspondingly, a rotating shaft is arranged between the two positioning seats, supporting rods are rotationally mounted between the positioning seats and the rotating shaft, movable rods are rotationally mounted in the two supporting rods correspondingly, and a movable sleeve is arranged between the two movable rods in a sleeving manner; a spring is fixedly installed between each movable rod and the movable sleeve, laser ranging probes are fixedly installed on the opposite end faces of the two movable rods respectively, a limiting rotating hole is formed in the supporting rod, and when the fireworks launch shells, vibration generated by the firework base can be detected.

Description

Technical Field

[0001] The utility model relates to the technical field related to the production and processing of fireworks products, in particular to a device for detecting the stability of the base of fireworks products. Background Technique

[0002] Due to the recoil force and physical impact generated by the combustion of the propelling gunpowder, the base of the fireworks will vibrate when firing the projectiles. In order to ensure the safety of the fireworks in each stage of ignition, liftoff and explosion, and prevent accidents caused by instability, after the production and processing of the fireworks products are completed, it is necessary to use a detection device to detect the stability of its base; most of the existing detection devices still use relatively traditional vibration testers for detection. However, this kind of vibration tester can only detect the vibration magnitude and frequency of the fireworks base, and cannot adjust the deviation angle of the fireworks. For this reason, we have proposed a device for detecting the stability of the base of fireworks products. Content of the Utility Model

[0003] The purpose of the utility model is to provide a device for detecting the stability of the base of fireworks products to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A device for detecting the stability of the base of fireworks products, including a base and a support plate. A spherical connecting seat is fixedly installed at the upper end of the base, and a spherical connecting head rotatably connected to the spherical connecting seat is fixedly installed at the lower end of the support plate. Positioning tooth grooves are opened at the outer periphery of the upper end of the base and the lower end of the support plate. Positioning seats are respectively inserted and installed in the upper and lower positioning tooth grooves. A rotating shaft is arranged between the two positioning seats. A support rod is rotatably installed between the positioning seat and the rotating shaft. Moving rods are respectively rotatably installed in the two support rods. A moving sleeve is sleeved between the two moving rods. Springs are fixedly installed between the moving rod and the moving sleeve. Laser distance measuring probes are respectively fixedly installed on the opposite end faces of the two moving rods.

[0005] Preferably, a positioning tooth block inserted into the positioning tooth groove is fixedly installed on one side of the positioning seat. A limiting rotation hole is opened in the support rod. A rotating block is fixedly installed on one side of the moving rod. A limiting rotation rod rotatably connected to the limiting rotation hole is fixedly installed on the outer periphery of the rotating block.

[0006] Preferably, both sides of the spring are respectively fixedly connected to the surface of the moving sleeve and the rotating block, and the spring is sleeved on the outer periphery of the moving rod. The laser distance measuring probe is arranged in the moving sleeve.

[0007] Preferably, a plurality of positioning blocks are slidably installed at equal intervals on the upper end of the support plate. The positioning blocks are arranged at right angles. A connecting frame is fixedly installed at the upper end of the spherical connector. The outer periphery of the connecting frame is fixedly connected to the outer periphery of the lower end of the support plate through a connecting rod. A rotating disk is rotatably installed at the lower end of the support plate. A motor is fixedly installed inside the connecting frame, and the upper end of the motor is fixedly connected to the middle of the lower end of the rotating disk through its output shaft.

[0008] Preferably, a first limiting chute is opened at the upper end of the support plate. A first limiting slider slidably connected to the first limiting chute is fixedly installed at the lower end of the positioning block. A second limiting chute is opened at the upper end of the rotating disk and is inclined. A second limiting slider slidably connected to the second limiting chute is fixedly installed at the lower end of the first limiting slider.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] For this fireworks product base stability detection device, through the positioning seat and the positioning tooth grooves, the number and position of the movable sleeves can be adjusted between the base and the support plate. Two support rods rotatably connected to each other are provided, and a movable rod and a movable sleeve are arranged between the two support rods. Then, two laser ranging probes aligned with each other are arranged inside the movable sleeve. Cooperating with the spring, when the fireworks are launched and drive the movement of the fireworks base, the base can drive the support plate to tilt. Through multiple laser ranging probes, the tilt angle and tilt magnitude of the support plate can be detected. Compared with the existing vibration tester, this device can significantly improve the detection effect of the stability of the fireworks base.

[0011] For this fireworks product base stability detection device, through the sliding connection between the positioning block and the support plate and the rotating disk, the rotating disk can drive each positioning block to contract inward or expand outward, so that the fireworks base can be clamped and positioned at the upper end of the support plate. When the fireworks launch the shells, it can prevent the fireworks base from shifting at the upper end of the support plate and ensure the detection effect of the stability of the fireworks base by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic external structure diagram of the base and the support plate of the present utility model;

[0013] Figure 2 is a schematic internal structure diagram of the base and the support plate of the present utility model;

[0014] Figure 3 is a schematic internal split structure diagram of the support rod and the laser ranging probe of the present utility model;

[0015] Figure 4 is a schematic internal split structure diagram of the positioning block and the support plate of the present utility model.

[0016] In the figure:

[0017] 1. Base; 11. Support plate; 12. Spherical connection seat; 13. Spherical connection head;

[0018] 2. Positioning seat; 21. Positioning tooth groove; 211. Positioning tooth block; 22. Rotating shaft; 24. Support rod; 25. Rotating block; 251. Limited rotation hole; 252. Limited rotation rod; 26. Movable sleeve; 261. Movable rod; 262. Spring; 27. Laser distance measuring probe;

[0019] 3. Positioning block; 31. Motor; 311. Connecting frame; 312. Connecting rod; 32. First limit chute; 321. First limit slider; 33. Rotating disc; 331. Second limit chute; 332. Second limit slider. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , the present invention provides a technical solution: a stability detection device for the base of a fireworks product, including a base 1 and a support plate 11. A spherical connection seat 12 is fixedly installed at the upper end of the base 1, and a spherical connection head 13 rotatably connected to the spherical connection seat 12 is fixedly installed at the lower end of the support plate 11. Positioning tooth grooves 21 are provided on the outer periphery of the upper end of the base 1 and the lower end of the support plate 11. Positioning seats 2 are respectively inserted and installed in the upper and lower positioning tooth grooves 21. A rotating shaft 22 is provided between the two positioning seats 2. A support rod 24 is rotatably installed between the positioning seat 2 and the rotating shaft 22. Movable rods 261 are respectively rotatably installed in the two support rods 24. A movable sleeve 26 is sleeved between the two movable rods 261. A spring 262 is fixedly installed between the movable rod 261 and the movable sleeve 26. Laser distance measuring probes 27 are respectively fixedly installed on the opposite end faces of the two movable rods 261.

[0022] Working principle: Through the insertion connection between the positioning seat 2 and the positioning tooth groove 21, the support rod 24 can be installed and disassembled between the base 1 and the support plate 11, achieving the effect of adjusting the number and position of the support rod 24;

[0023] During use, place the firework base on the upper end of the support plate 11, ignite the firework, so that the firework launches its internal shell upward. When the shell is launched, it can drive the firework base and the lower support plate 11 below it to vibrate. There are a spherical connecting seat 12 and a spherical connecting head 13 connected to each other between the base 1 and the support plate 11, causing the support plate 11 to tilt. Through two support rods 24 rotatably connected to each other, an activity rod 261 and an activity sleeve 26 are arranged between the two support rods 24. Then, two laser ranging probes 27 aligned with each other are arranged in the activity sleeve 26. Cooperating with the spring 262, when the support plate 11 tilts, the distance between the upper and lower laser ranging probes 27 can be adjusted, and thus the tilt angle and tilt magnitude of the support plate 11 can be detected.

[0024] As a further description of the above technical solution: A positioning tooth block 211 inserted into the positioning tooth groove 21 is fixedly installed on one side of the positioning seat 2. A limiting rotation hole 251 is opened in the support rod 24. A rotation block 25 is fixedly installed on one side of the activity rod 261. A limiting rotation rod 252 rotatably connected to the limiting rotation hole 251 is fixedly installed on the periphery of the rotation block 25. Both sides of the spring 262 are fixedly connected to the surface of the activity sleeve 26 and the rotation block 25 respectively, and the spring 262 is sleeved on the periphery of the activity rod 261. The laser ranging probe 27 is arranged in the activity sleeve 26.

[0025] Specifically, by setting the positioning tooth block 211 and its insertion connection with the positioning tooth groove 21, when installing the support rod 24 between the base 1 and the support plate 11, the support rod 24 can be positioned to prevent it from shifting between the base 1 and the support plate 11.

[0026] Through the rotational connection between the limiting rotation hole 251 and the limiting rotation rod 252, the telescoping or expanding support rod 24 can drive the upper and lower activity rods 261 to move towards or away from each other, achieving the effect of adjusting the distance between the two laser ranging probes 27.

[0027] As a further description of the above technical solution: A plurality of positioning blocks 3 are slidably installed at equal intervals on the upper end of the support plate 11. The positioning blocks 3 are arranged at right angles. A connection frame 311 is fixedly installed at the upper end of the spherical connecting head 13. The periphery of the connection frame 311 is fixedly connected to the periphery of the lower end of the support plate 11 through a connecting rod 312. A rotating disk 33 is rotatably installed at the lower end of the support plate 11. A motor 31 is fixedly installed in the connection frame 311. The upper end of the motor 31 is fixedly connected to the middle of the lower end of the rotating disk 33 through its output shaft; a first limiting sliding groove 32 is opened at the upper end of the support plate 11. A first limiting slider 321 slidably connected to the first limiting sliding groove 32 is fixedly installed at the lower end of the positioning block 3. An inclined second limiting sliding groove 331 is opened at the upper end of the rotating disk 33. A second limiting slider 332 slidably connected to the second limiting sliding groove 331 is fixedly installed at the lower end of the first limiting slider 321.

[0028] Specifically, when positioning the fireworks base at the upper end of the support plate 11, the motor 31 is started. The motor 31 drives the rotating disk 33 to rotate through its output shaft. Under the restriction of the movement direction of the positioning block 3 by the sliding connection between the support plate 11 and the first limiting chute 32 through the first limiting slider 321, the rotating rotating disk 33 can drive each positioning block 3 to contract inward through the sliding connection between the second limiting chute 331 and the second limiting slider 332, achieving the effect of positioning the fireworks base.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the stability of a base of a fireworks product, comprising a base (1) and a support plate (11), characterized in that: A spherical connection seat (12) is fixedly mounted on the upper end of the base (1), and a spherical connection head (13) rotatably connected to the spherical connection seat (12) is fixedly mounted on the lower end of the support plate (11). Positioning tooth grooves (21) are provided on the peripheries of the upper end of the base (1) and the lower end of the support plate (11). Positioning seats (2) are respectively inserted and mounted in the positioning tooth grooves (21) on the upper and lower sides. A rotating shaft (22) is provided between the two positioning seats (2). A support rod (24) is rotatably mounted between the positioning seat (2) and the rotating shaft (22). A movable rod (261) is rotatably mounted in the two support rods (24). A movable sleeve (26) is sleeved between the two movable rods (261). A spring (262) is fixedly mounted between the movable rod (261) and the movable sleeve (26). Laser distance measuring probes (27) are respectively fixedly mounted on the facing end surfaces of the two movable rods (261).

2. A fireworks product base stability detection device according to claim 1, characterized in that: A positioning tooth block (211) plugged into the positioning tooth groove (21) is fixedly mounted on one side of the positioning seat (2); a limited rotation hole (251) is provided in the support rod (24); a rotation block (25) is fixedly mounted on one side of the movable rod (261); and a limited rotation rod (252) rotatably connected to the limited rotation hole (251) is fixedly mounted on the periphery of the rotation block (25).

3. A fireworks product base stability detection device according to claim 2, characterized in that: The two sides of the spring (262) are respectively fixedly connected to the surfaces of the movable sleeve (26) and the rotating block (25), and the spring (262) is sleeved on the periphery of the movable rod (261), and the laser distance measuring probe (27) is arranged in the movable sleeve (26).

4. A fireworks product base stability detection device according to claim 1, characterized in that: A plurality of positioning blocks (3) are slidably mounted at equal intervals on the upper end of the support plate (11), and the positioning blocks (3) are arranged at right angles. A connecting frame (311) is fixedly mounted on the upper end of the spherical connector (13), and the outer periphery of the connecting frame (311) is fixedly connected to the outer periphery of the lower end of the support plate (11) via a connecting rod (312). A rotating disk (33) is rotatably mounted on the lower end of the support plate (11), and a motor (31) is fixedly mounted inside the connecting frame (311), and the upper end of the motor (31) is fixedly connected to the middle part of the lower end of the rotating disk (33) via its output shaft.

5. A fireworks product base stability detection device according to claim 4, characterized in that: The upper end of the support plate (11) is provided with a first limiting slide groove (32); the lower end of the positioning block (3) is fixedly provided with a first limiting slide block (321) slidably connected to the first limiting slide groove (32); the upper end of the rotating disk (33) is provided with an inclined second limiting slide groove (331); the lower end of the first limiting slide block (321) is fixedly provided with a second limiting slide block (332) slidably connected to the second limiting slide groove (331).

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