CN116465266A - Firework and firecracker transmitting gunpowder power testing device - Google Patents

Abstract

The invention discloses a firework and firecracker transmitting gunpowder power testing device, which comprises a base, a force transducer, a transmitting tube, a nesting body and a detection table, wherein the force transducer is connected to the base; the transmitting tube is detachably arranged on the nesting body; the device also comprises an auxiliary nest for clamping the two transmitting pipes, and a rotary clamping mechanism for clamping the auxiliary nest is arranged on the nest body; the lower end of the base is provided with a buffer mechanism for buffering impact force generated by firework explosion; the buffer mechanism is arranged on the base to buffer the impact force generated by gunpowder power emitted by the fireworks and crackers so as to prevent the testing device from being in hard contact with the table top or the bottom surface, and the impact resistance and durability of the testing device can be effectively improved; meanwhile, the testing device is suitable for single-tube emission testing and is also suitable for double-tube simultaneous emission testing.

Description

Firework and firecracker transmitting gunpowder power testing device

Technical Field

The invention relates to the technical field of firework and firecracker detection, in particular to a firework and firecracker gunpowder power testing device.

Background

The propellant in the firework and firecracker products is a raw material which is most widely used and very important, and the most important products in the industry, such as combined fireworks, display shells, spray flowers, small display shells, spitting beads and the like, all need to use a large amount of propellant. The gunpowder power generated by explosion when the fireworks and crackers are launched is the thrust for pushing the fireworks to rise to the empty height, and in order to match the height and ornamental value of the fireworks, the gunpowder content of the fireworks and crackers needs to be proportioned when the fireworks and crackers are produced, and the gunpowder proportion of the fireworks is determined through multiple tests. The gunpowder power generated by the emission of the fireworks and crackers has larger impact force on the testing equipment, and the testing equipment is required to have larger impact resistance and durability because the testing equipment needs to be tested for numerous times in the process of developing the fireworks and crackers; meanwhile, the testing equipment needs to calibrate levelness from time to ensure that gunpowder power can be transmitted to the sensor when the fireworks and crackers are launched, however, as the testing equipment is impacted for many times, the table top for placing the testing equipment can deform, so that development of the fireworks and crackers launching gunpowder power testing device with the function of buffering the fireworks and crackers launching gunpowder power is needed to be improved, and the impact resistance and durability of the testing device are improved.

Disclosure of Invention

The invention aims at solving the problems existing in the prior art by providing a firework and firecracker gunpowder power testing device.

The invention provides a firework and firecracker transmitting gunpowder power testing device, which comprises a base, a force transducer, a transmitting tube, a nesting body and a detection table, wherein the force transducer is connected to the base; the transmitting tube is detachably arranged on the nesting body; the device also comprises an auxiliary nest for clamping the two transmitting pipes, and a rotary clamping mechanism for clamping the auxiliary nest is arranged on the nest body; the lower end of the base is provided with a buffer mechanism for buffering impact force generated by firework explosion.

Further, a nested hole and a fixed hole are formed in the nested body, the nested hole is communicated with the fixed hole, and a limiting groove is formed in the bottom surface of the nested body; the limit groove is horizontally communicated with the nesting hole; the limit groove is vertically communicated with the fixed hole; the end of the transmitting tube is provided with an annular limiting ring, and the transmitting tube slides into the fixing hole after being inserted into the sleeve embedding hole, so that the annular limiting ring slides into the limiting groove to be limited. The transmitting tube comprises a first transmitting tube and a second transmitting tube, an elliptical notch is arranged on the annular limiting rings of the first transmitting tube and the second transmitting tube, and the elliptical notch on the first transmitting tube is embedded with the annular limiting ring on the second transmitting tube.

Further, the rotary clamping mechanism comprises an oval block, a push block, a trapezoid block, a lock rod and a first spring, wherein the oval block is slidably arranged in the nesting hole, the push block is connected to the oval block, the trapezoid block and the lock rod are slidably arranged in the nesting body, and inclined planes on two sides of the trapezoid block are respectively in sliding abutting connection with inclined planes at the ends of the push block and the lock rod; the first spring is sleeved on the lock rod, the first spring is positioned in the nesting body, and the lock rod is inserted into the lock hole on the auxiliary nesting body. The auxiliary nest is provided with an arc clamping part and an annular pressing part, and the lock hole is arranged on the annular pressing part; the annular pressing part is in sliding sleeve joint with the second transmitting tube; the arc clamping part is in sliding abutting connection with the first transmitting tube.

Further, the buffer mechanism comprises a bottom plate, a main cylinder, auxiliary cylinders, a push rod, a first piston, a second piston and a second spring, wherein the main cylinder is arranged at four corners of the bottom plate, the auxiliary cylinders are arranged at the middle part of the bottom plate, the push rod is fixedly arranged at four corners of the lower end surface of the base, the second spring is sleeved on the push rod, the first piston is connected with the end part of the push rod, and the first piston is arranged in the main cylinder in a sliding manner; the lower end of the main cylinder is communicated with the lower end of the auxiliary cylinder through a guide pipe; the second piston is arranged in the auxiliary cylinder in a sliding manner, and separates oil liquid and air in the auxiliary cylinder. The device further comprises a push rod and a third spring, wherein the end part of the push rod is connected with the second piston, a push disc is arranged at the other end of the push rod, one end of the third spring is connected to the push disc, and the other end of the third spring is connected to the middle part of the base. The first piston is provided with a one-way valve for oil to enter and exit the upper part of the main cylinder through the first piston. The push disc is provided with a limiting column in a protruding mode, and the third spring is sleeved on the limiting column so as to limit the third spring, so that the reaction force generated by the auxiliary cylinder is transmitted to the third spring conveniently.

Further, the upper end of the auxiliary cylinder is communicated with an air pump through a pipeline, and an electromagnetic valve is arranged on the pipeline so as to control the passage of the pipeline through the electromagnetic valve.

Compared with the prior art, the method has the following beneficial effects:

the invention provides a firework and firecracker powder power testing device, which is characterized in that a buffering mechanism is arranged on a base to buffer impact force generated by powder power emitted by the firework and the firecracker, so that the testing device is prevented from being in hard contact with a table board or the bottom surface, and the impact resistance and durability of the testing device can be effectively improved; meanwhile, the testing device is suitable for single-tube emission testing and is also suitable for double-tube simultaneous emission testing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a device for testing the power of a firework and cracker propellant;

FIG. 2 is an axial view of a device for testing the power of a firework and firecracker powder;

FIG. 3 is an enlarged partial schematic view of the invention A;

FIG. 4 is an axial view of a device for testing the power of a pyrotechnic charge emitted by a firework;

FIG. 5 is an enlarged partial schematic view of the present invention B;

FIG. 6 is an axial view of a device for testing the power of a pyrotechnic charge emitted by a firework;

FIG. 7 is a schematic view of the bottom of a nest of the present invention;

FIG. 8 is an enlarged partial schematic view of the present invention C;

FIG. 9 is a schematic view of a rotational locking mechanism of the present invention;

FIG. 10 is a schematic view of the interior of the master cylinder of the present invention;

FIG. 11 is a schematic view of the interior of the slave cylinder of the present invention;

FIG. 12 is a schematic diagram of embodiment 4 of the present invention.

In the figure, a 1-base; 2-a load cell; 3-an emitter tube; 4-nesting; 5-a detection table; 6-auxiliary nesting; 7-a conduction pipe; 8-a pipeline; 9-an electromagnetic valve; 21-elliptic blocks; 22-pushing blocks; 23-trapezoidal blocks; 24-locking bar; 25-a first spring; 31-a first emitter; 32-a second emitter tube; 33-an annular limit ring; 34-oval notch; 41-nesting holes; 42-fixing holes; 43-limit groove; 51-a bottom plate; 52-a master cylinder; 53-auxiliary cylinder; 54-push rod; 55-a first piston; 56-a second piston; 57-a second spring; 58-ejector rod; 59-a third spring; 61-keyhole.

Detailed Description

For a better understanding of the present invention, its construction, and the functional features and advantages attained by the same, reference should be made to the accompanying drawings in which:

example 1:

as shown in fig. 1 to 11, the invention provides a firework and firecracker propellant power testing device, which comprises a base 1, a force transducer 2, a launching tube 3, a nesting body 4 and a detection table 5, wherein the force transducer 2 is connected to the base 1, the detection table 5 is connected to the force transducer 2, and the nesting body 4 is arranged on the detection table 5; the transmitting tube 3 is detachably arranged on the nested body 4. The downward acting force is generated on the transmitting tube 3 when the fireworks and crackers are transmitted, the acting force acts on the force sensor 2 through the detecting table 5, the acting force is detected by the force sensor 2, and the powder power of the fireworks and crackers is judged according to the detected force. The device also comprises an auxiliary nest 6 used for clamping the two transmitting pipes 3, and a rotary clamping mechanism used for clamping the auxiliary nest 6 is arranged on the nest body 4; the lower end of the base 1 is provided with a buffer mechanism for buffering impact force generated by firework explosion. The nesting body 4 is provided with a nesting hole 41 and a fixing hole 42, the nesting hole 41 is communicated with the fixing hole 42, and the bottom surface of the nesting body 4 is provided with a limit groove 43; the limiting groove 43 is horizontally communicated with the nesting hole 41; the limiting groove 43 is vertically communicated with the fixing hole 42. The diameter of the nesting hole 41 is larger than that of the fixing hole 42, and the width of the limiting groove 43 is the same as that of the nesting hole 41, so that the annular limiting ring 33 slides from the nesting hole 41 to the limiting groove 43 for limiting. The nested body 4 is provided with a plurality of mounting holes so as to mount the nested body 4 on the transmitting platform or the detecting platform through the mounting holes. The nest 4 and the emitter tube 3 are of metallic material. The end of the transmitting tube 3 is provided with an annular limiting ring 33, and the transmitting tube 3 slides into the fixing hole 42 after being inserted into the nested hole 41, so that the annular limiting ring 33 slides into the limiting groove 43 for limiting. The transmitting tube 3 comprises a first transmitting tube 31 and a second transmitting tube 32, an elliptical notch 34 is arranged on an annular limiting ring 33 of the first transmitting tube 31 and the second transmitting tube 32, and the elliptical notch 34 on the first transmitting tube 31 is embedded with the annular limiting ring 33 on the second transmitting tube 32. Further, by arranging the nesting hole 41 and the fixing hole 42 which are communicated with each other on the nesting body 4, arranging the limiting groove 43 which is horizontally communicated with the nesting hole 41 and vertically communicated with the fixing hole 42 on the bottom surface of the nesting body 4, inserting the annular limiting ring 33 at the end part of the transmitting tube 3 into the nesting hole 41 and then sliding to the fixing hole 42 so that the annular limiting ring 33 enters into the limiting groove 43, and limiting the annular limiting ring 33 by the limiting groove 43 so as to fix the transmitting tube 3 on the nesting body 4; when it is necessary to disassemble the launch tube 3, the launch tube 3 is disassembled by sliding the launch tube 3 toward the nest hole 41 so that the launch tube 3 enters the nest hole 41.

Example 2:

as shown in fig. 1 to fig. 4, in combination with the technical solution of embodiment 1, in this embodiment, the rotary clamping mechanism includes an oval block 21, a push block 22, a trapezoid block 23, a lock rod 24 and a first spring 25, the oval block 21 is slidably disposed in a nesting hole 41, the push block 22 is connected to the oval block 21, the trapezoid block 23 and the lock rod 24 are slidably disposed in the nesting body 4, and inclined surfaces on two sides of the trapezoid block 23 are respectively slidably abutted with inclined surfaces on ends of the push block 22 and the lock rod 24; the first spring 25 is sleeved on the lock rod 24, the first spring 25 is positioned in the nesting body 4, and the lock rod 24 is inserted into a lock hole 61 on the auxiliary nesting 6. The lock hole 61 is inserted. The auxiliary nest 6 is provided with an arc clamping part and an annular pressing part, and the lock hole 61 is arranged on the annular pressing part; the annular pressing part is in sliding sleeve joint with the second transmitting tube 32; the arc clamping portion is slidably abutted with the first emitter tube 31. When the annular lock device is used, the elliptical notch 34 on the second transmitting tube 32 and the elliptical block 21 are inserted into the nesting hole 41 in the vertical direction, the annular limit ring 33 at the end part of the second transmitting tube 32 is in embedded abutting joint with the elliptical notch 34 on the first transmitting tube 31, at the moment, the auxiliary nesting 6 is sleeved on the second transmitting tube 32 and slides into the nesting hole 41 to compress the annular limit rings 33 at the end parts of the first transmitting tube 31 and the second transmitting tube 32, the second transmitting tube 32 is rotated to enable the elliptical notch 34 on the second transmitting tube to be separated from the elliptical block 21, so that the annular limit ring 33 at the end part of the second transmitting tube 32 pushes the elliptical block 21 into the nesting body 4, the trapezoidal block 23 is pushed to vertically move upwards in the nesting body 4 by means of the inclined plane in the horizontal movement process of the elliptical block 21, and the locking rod 24 is pushed to extend to the nesting hole 41 by means of the inclined plane, and the end part of the locking rod 24 is spliced with the locking hole 61 on the annular compression part.

Example 3:

as shown in fig. 1 to 11, in combination with the technical solution of embodiment 2, in this embodiment, the buffer mechanism includes a bottom plate 51, a main cylinder 52, a slave cylinder 53, a push rod 54, a first piston 55, a second piston 56, and a second spring 57, the main cylinder 52 is disposed at four corners of the bottom plate 51, the slave cylinder 53 is disposed in the middle of the bottom plate 51, the push rod 54 is fixedly disposed at four corners of the lower end surface of the base 1, the second spring 57 is sleeved on the push rod 54, the first piston 55 is connected to an end of the push rod 54, and the first piston 55 is slidably disposed in the main cylinder 52; the lower end of the main cylinder 52 is communicated with the lower end of the auxiliary cylinder 53 through a conduit 7; a second piston 56 is slidably disposed within the slave cylinder 53, the second piston 56 separating oil from air within the slave cylinder 53. The device further comprises a push rod 58 and a third spring 59, wherein the end part of the push rod 58 is connected with the second piston 56, a push disc is arranged at the other end of the push rod 58, one end of the third spring 59 is connected to the push disc, and the other end of the third spring 59 is connected to the middle part of the base 1. The first piston 55 is provided with a one-way valve for oil to enter and exit the upper part of the main cylinder 52 through the first piston 55, and the one-way valve can be a ball valve or an opening and closing valve so as to switch and open the two one-way valves thereon through the movement of the first piston 55; when the first piston 55 is impacted to move downwards, one-way valve on the first piston 55 is opened, so that oil in the bottom of the main cylinder 52 can enter the upper part of the main cylinder 52 through the one-way valve; similarly, when the first piston 55 moves upward under the air pressure of the second spring 57 and the auxiliary cylinder 53, the other check valve on the first piston 55 opens, so that the oil in the upper portion of the main cylinder 52 can enter the inner bottom of the main cylinder 52 through the other check valve, so as to realize slow return of the push rod 54. The pushing disc is provided with a limiting column in a protruding mode, and the third spring 59 is sleeved on the limiting column so as to limit the third spring 59, so that the reaction force generated by the auxiliary cylinder 53 is conveniently transmitted to the third spring 59, and the reaction force acts on gunpowder power generated by the firing of fireworks and crackers in a reverse mode. Further, when the fireworks and crackers are fired, the first piston 55 moves downwards to push oil into the auxiliary cylinder 53 to push the second piston 56 to move upwards, the second piston 56 moves upwards to squeeze air positioned at the upper part in the auxiliary cylinder 53, and the second piston 56 moves upwards to push the ejector rod 58 to move upwards to react with the third spring 59, so that part of the impact force generated by the gunpowder power is transmitted to the third spring 59 to offset part of the impact force.

Example 4:

as shown in fig. 12, in the present embodiment, in combination with the technical solution of embodiment 3, the upper end of the auxiliary cylinder 53 is communicated with an air pump through a pipeline 8, and the air pump is a booster pump with decompression and pressurization functions. The electromagnetic valve 9 is arranged on the pipeline 8, so that the passage of the pipeline 8 is controlled through the electromagnetic valve 9, the auxiliary cylinder 53 is pressurized or depressurized through the air pump, and the air pressure in the auxiliary cylinder 53 is regulated, so that the height of the first piston 55 in the main cylinder 52 is regulated to regulate the distance between the base 1 and the bottom plate 51, and the buffer device is suitable for buffering during simultaneous testing of the double-emission pipe 3; the device also comprises a controller, and the force transducer 2, the electromagnetic valve 9 and the air pump are respectively and electrically connected with the controller; the device also comprises a pressurizing chamber, wherein the pressurizing chamber is communicated with the pipeline 8, an air pump is communicated with the pressurizing chamber, and the air pump firstly pressurizes the pressurizing chamber to a certain degree and then opens the electromagnetic valve 9 to enable air to enter the upper part in the auxiliary cylinder 53; in the pressure relief, a part of the gas can be released into the pressurizing chamber by opening the electromagnetic valve 9, and then the pressurizing chamber and the air pump are opened to perform pressure relief. The pressure chamber and the pipeline 8 are provided with a pressure sensor between the electromagnetic valve 9 and the auxiliary cylinder 53, and the pressure sensor is electrically connected with the controller so as to monitor the pressure in the pressure chamber and the auxiliary cylinder 53 through the pressure sensor.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present invention fall within the protection scope of the present invention.

Claims (10)

1. The firework and firecracker emission gunpowder power testing device is characterized by comprising a base (1), a force transducer (2), an emission tube (3), a nesting body (4) and a detection table (5), wherein the force transducer (2) is connected to the base (1), the detection table (5) is connected to the force transducer (2), and the nesting body (4) is arranged on the detection table (5); the transmitting tube (3) is detachably arranged on the nesting body (4); the device also comprises a secondary nest (6) used for clamping the two transmitting pipes (3), and a rotary clamping mechanism used for clamping the secondary nest (6) is arranged on the nest body (4); the lower end of the base (1) is provided with a buffer mechanism for buffering impact force generated by firework explosion.

2. The firework and firecracker powder power testing device according to claim 1, wherein the nesting body (4) is provided with a nesting hole (41) and a fixing hole (42), the nesting hole (41) is communicated with the fixing hole (42), and the bottom surface of the nesting body (4) is provided with a limit groove (43); the limiting groove (43) is horizontally communicated with the nesting hole (41); the limiting groove (43) is vertically communicated with the fixing hole (42); the end part of the transmitting tube (3) is provided with an annular limiting ring (33), and the transmitting tube (3) is inserted into the nesting hole (41) and then slides into the fixing hole (42), so that the annular limiting ring (33) slides into the limiting groove (43) to be limited.

3. The firework and firecracker powder power testing device according to claim 2, wherein the emitting tube (3) comprises a first emitting tube (31) and a second emitting tube (32), elliptical notches (34) are arranged on the annular limiting rings (33) of the first emitting tube (31) and the second emitting tube (32), and the elliptical notches (34) on the first emitting tube (31) are embedded with the annular limiting rings (33) on the second emitting tube (32).

4. A firework and firecracker emitting gunpowder power testing device according to claim 3, wherein the rotary clamping mechanism comprises an oval block (21), a push block (22), a trapezoid block (23), a lock rod (24) and a first spring (25), the oval block (21) is slidably arranged in the nesting hole (41), the push block (22) is connected to the oval block (21), the trapezoid block (23) and the lock rod (24) are slidably arranged in the nesting body (4), and inclined planes on two sides of the trapezoid block (23) are respectively in sliding abutting connection with inclined planes at the ends of the push block (22) and the lock rod (24); the first spring (25) is sleeved on the lock rod (24), the first spring (25) is positioned in the nesting body (4), and the lock rod (24) is inserted into a lock hole (61) in the auxiliary nesting body (6).

5. The firework and firecracker powder power testing device according to claim 1, wherein the buffer mechanism comprises a bottom plate (51), a main cylinder (52), a secondary cylinder (53), a push rod (54), a first piston (55), a second piston (56) and a second spring (57), the main cylinder (52) is arranged at four corners of the bottom plate (51), the secondary cylinder (53) is arranged in the middle of the bottom plate (51), the push rod (54) is fixedly arranged at four corners of the lower end face of the base (1), the second spring (57) is sleeved on the push rod (54), the first piston (55) is connected to the end part of the push rod (54), and the first piston (55) is slidably arranged in the main cylinder (52); the lower end of the main cylinder (52) is communicated with the lower end of the auxiliary cylinder (53) through a guide pipe (7); the second piston (56) is slidably arranged in the auxiliary cylinder (53), and the second piston (56) separates oil liquid and air in the auxiliary cylinder (53).

6. The firework and firecracker powder power testing device according to claim 4, further comprising a push rod (58) and a third spring (59), wherein the end portion of the push rod (58) is connected with the second piston (56), a push disc is arranged at the other end of the push rod (58), one end of the third spring (59) is connected to the push disc, and the other end of the third spring (59) is connected to the middle of the base (1).

7. The device for testing the power of the powder for the emission of fireworks and crackers according to claim 5, wherein the first piston (55) is provided with a one-way valve for the oil to enter and exit from the upper part of the main cylinder (52) through the first piston (55).

8. The firework and firecracker propellant power test device of claim 6, wherein; and a limit post is arranged on the push disc in a protruding mode, and the third spring (59) is sleeved on the limit post.

9. The firework and firecracker powder power testing device according to claim 4, wherein the auxiliary nest (6) is provided with an arc clamping part and an annular pressing part, and the lock hole (61) is arranged on the annular pressing part; the annular pressing part is in sliding sleeve joint with the second transmitting tube (32); the arc clamping part is in sliding abutting connection with the first emitting tube (31).

10. The firework and firecracker powder power testing device according to claim 6, wherein the upper end of the auxiliary cylinder (53) is communicated with an air pump through a pipeline (8), and an electromagnetic valve (9) is arranged on the pipeline (8).