Pyrotechnic composition friability tester

Abstract

The utility model relates to the technical field of pyrotechnic composition detection, and discloses a pyrotechnic composition friability tester which comprises a box body, a driving assembly is fixedly connected in the box body, a first rotating groove is formed in the right side of the driving assembly, a top block is rotationally connected in the first rotating groove, a connecting column is fixedly connected to the left side of the top block, and a second rotating groove is formed in the right side of the connecting column. The connecting column is sleeved with a spring, the top of the driving assembly is in threaded connection with a threaded sleeve, the driving assembly is slidably connected with a fixing sleeve, the fixing sleeve is sleeved with a protective sleeve, the fixing sleeve is fixedly connected with a rotating cylinder, and the top end of the interior of the rotating cylinder is fixedly connected with a gasket. And a top cover is arranged in the gasket. According to the utility model, the cover of the pyrotechnic composition friability tester can be sealed and fixed, so that the fineness of the tester is improved, the pyrotechnic composition friability tester can reduce the generation of static electricity, and the test safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pyrotechnic powder detection, in particular to a pyrotechnic powder friability tester. Background Art

[0002] The pyrotechnic composition friability tester is an instrument used to measure the brittleness and fragmentation properties of fireworks and explosives. The main purpose of this tester is to evaluate the physical characteristics of pyrotechnic compositions during transportation, storage and use, especially their reactions under collision or force.

[0003] However, during the actual use of some conventional pyrotechnic powder friability testers, it is difficult to close and fix the lid of the tester after the pyrotechnic powder is placed in the tester, so that the pyrotechnic powder is exposed from the inside of the tester when the pyrotechnic powder is tested. Therefore, in view of the above problems, a pyrotechnic powder friability tester is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a pyrotechnic powder friability tester, aiming to improve the problems in the prior art that the cover of the pyrotechnic powder friability tester cannot be sealed and fixed and the pyrotechnic powder friability tester cannot reduce the generation of static electricity.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fireworks powder friability tester, comprising a box body, a driving assembly is fixedly connected to the interior of the box body, a rotating groove 1 is opened on the right side of the driving assembly, a top block is rotatably connected to the interior of the rotating groove 1, a connecting column is fixedly connected to the left side of the top block, a spring is sleeved on the outside of the connecting column, a threaded sleeve is threadedly connected to the top of the driving assembly, a fixed sleeve is slidably connected to the outside of the driving assembly, a protective sleeve is sleeved on the outside of the fixed sleeve, a rotating drum is fixedly connected to the outside of the fixed sleeve, a gasket is fixedly connected to the top end of the inner part of the rotating drum, and a top cover is arranged inside the gasket.

[0006] Furthermore, the driving assembly includes a motor, the top of the motor is fixedly connected to the inside of the box, and the driving end of the motor is fixedly connected to a connecting rod.

[0007] Furthermore, rotating rods are fixedly connected to the left and right sides of the fixed sleeve, conductive coatings are fixedly connected to the outsides of the two rotating rods, multiple rubber beans are fixedly connected to the outsides of the two conductive coatings, a limiting groove is provided at the bottom of the rotating drum, a rotating groove 2 is provided at the top of the box body, a rotating block is rotatably connected to the inside of the rotating groove 2, and a rotating column is rotatably connected to the top of the rotating block.

[0008] Furthermore, the four corners of the bottom of the box are fixedly connected with support columns, and the front side of the box is rotatably connected with a revolving door.

[0009] Furthermore, one side of the spring is fixedly connected to the left side of the top block, and the other side of the spring is fixedly connected to the inside of the first rotating groove.

[0010] Furthermore, the outside of the connecting column is slidably connected to the inside of the rotating groove 1, and the bottom of the top block is in contact with the top of the top cover.

[0011] Furthermore, the fixing sleeve is made of polyethylene, and the protective sleeve is made of rubber.

[0012] Furthermore, the top of the rotating column is engaged with the inside of the limiting groove, and the outside of the rotating column is rotatably connected to the inside of the second rotating groove.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the cover of the pyrotechnic powder friability tester can be sealed and fixed by using the rotating groove 1, the top block, the connecting column, the spring, the threaded sleeve, the fixing sleeve, the rubber sleeve, the rotating cylinder, the gasket and other structures, which is beneficial to improve the precision of the tester.

[0015] 2. In the utility model, by using the rotating rod, rubber beans, limit groove, rotating groove 2, rotating block, rotating column and other structures in coordination, the pyrotechnic powder friability tester can reduce the generation of static electricity and improve the safety of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a pyrotechnic powder friability tester proposed by the utility model;

[0017] Figure 2 This is a cross-sectional view of the rotating drum structure of a pyrotechnic powder friability tester proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a fixed sleeve of a pyrotechnic powder friability tester proposed by the utility model;

[0019] Figure 4 The utility model discloses a top block structure schematic diagram of a pyrotechnic powder friability tester.

[0020] Legend:

[0021] 1. Box body; 2. Motor; 3. Connecting rod; 4. Rotating groove one; 5. Top block; 6. Connecting column; 7. Spring; 8. Threaded sleeve; 9. Fixed sleeve; 10. Protective sleeve; 11. Rotating drum; 12. Washer; 13. Top cover; 14. Rotating rod; 15. Conductive coating; 16. Rubber bean; 17. Limiting groove; 18. Rotating groove two; 19. Rotating block; 20. Rotating column; 21. Support column; 22. Revolving door. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 and Figure 4 As shown, an embodiment of the utility model is a pyrotechnic powder friability tester, comprising a box body 1, the box body 1 is used to fix a motor 2, a driving assembly is fixedly connected inside the box body 1, the driving assembly comprises a motor 2, the motor 2 is used to fix a connecting rod 3 through its driving end so as to drive a rotating drum 11 to rotate, the top of the motor 2 is fixedly connected to the inside of the box body 1, thereby fixing the motor 2 so that the motor 2 does not move during operation, the driving end of the motor 2 is fixedly connected to a connecting rod 3, the connecting rod 3 is used to fix the rotating drum 11, a rotating groove 4 is provided on the right side of the driving assembly, the rotating groove 4 is used to accommodate a top block 5, the rotating groove 4 is rotatably connected to a top block 5, the top block 5 is used to limit the top cover 13, the top block 5 The bottom of the top cover 13 contacts with the top of the top cover 13, and the top cover 13 is limited and fixed in position by the top block 5, so that the top cover 13 will not fall off during the rotation process. The left side of the top block 5 is fixedly connected with a connecting column 6, and the function of the connecting column 6 is to support the top block 5. The outside of the connecting column 6 is slidably connected to the inside of the rotating groove 4, so that the top block 5 can be retracted into the inside of the rotating groove 4. The outer sleeve of the connecting column 6 is provided with a spring 7, and the function of the spring 7 is to enable the top block 5 to be quickly reset. One side of the spring 7 is fixedly connected to the left side of the top block 5, and the other side of the spring 7 is fixedly connected to the inside of the rotating groove 4, so that the spring 7 is not easy to be misplaced and will not be deformed. The top thread of the driving assembly is connected with a threaded sleeve 8, and the function of the threaded sleeve 8 is to limit the top cover 13.

[0024] Reference Figure 2As shown, the external sliding connection of the driving component is provided with a fixed sleeve 9, and the function of the fixed sleeve 9 is to connect the rotating drum 11. The material of the fixed sleeve 9 is polyethylene material. The polyethylene material has good stability to many chemical substances, is not easily corroded, and has good impact strength. For applications that need to resist physical impact, the external sleeve of the fixed sleeve 9 is provided with a protective sleeve 10. The function of the protective sleeve 10 is to protect the tail of the fixed sleeve 9. The material of the protective sleeve 10 is rubber material. Rubber has high wear resistance and can maintain its performance for a long time in a friction and wear environment. Rubber has good absorption capacity for vibration and impact. Rubber has good tolerance to some chemical substances and can resist erosion to a certain extent. The external fixed connection of the fixed sleeve 9 is provided with the rotating drum 11. The rotating drum The function of 11 is to test the friability of fireworks powder inside it. A gasket 12 is fixedly connected to the top of the inner top of the drum 11. The function of the gasket 12 is to protect the top cover 13. The top cover 13 is arranged inside the gasket 12. The function of the top cover 13 is to make the inside of the drum 11 sealed when the friability test of fireworks powder is carried out. The left and right sides of the fixed sleeve 9 are fixedly connected with rotating rods 14. The function of the rotating rods 14 is to fix the conductive coating 15. The outsides of the two rotating rods 14 are fixedly connected with the conductive coating 15. The function of the conductive coating 15 is to test the friability of fireworks powder. The outsides of the two conductive coatings 15 are fixedly connected with a plurality of rubber beans 16. The function of the rubber beans 16 is to test the friability of fireworks powder. A limiting groove 17 is provided at the bottom of the drum 11.

[0025] Reference Figure 3 As shown, the function of the limiting groove 17 is to connect the rotating column 20, so as to assist the rotating drum 11 to rotate. A rotating groove 2 18 is provided on the top of the box body 1. The function of the rotating groove 2 18 is to facilitate the rotation of the rotating block 19 therein. The internal rotation of the rotating groove 2 18 is connected with the rotating block 19. The function of the rotating block 19 is to assist the rotating drum 11 to rotate. The top of the rotating block 19 is rotatably connected with the rotating column 20. The function of the rotating column 20 is to connect the limiting groove 17 to assist the rotating drum 11. The top of the rotating column 20 is engaged with the inside of the limiting groove 17, so that the rotating drum 11 is more stable during the rotation process. The outside of the rotating column 20 is rotatably connected to the inside of the rotating groove 2 18, so as to drive the rotating block 19 to assist the rotation of the rotating drum 11. The four corners of the bottom of the box body 1 are fixedly connected with support columns 21. The function of the support columns 21 is to raise the box body 1 as a whole, so as to prevent the inside of the box body 1 from getting damp. The front side of the box body 1 is rotatably connected with a revolving door 22. The function of the revolving door 22 is to protect the motor 2 inside the box body 1.

[0026] Working principle: When the operator is testing the friability of the pyrotechnic powder, he only needs to unscrew the threaded sleeve 8, and then press the top block 5 so that the top block 5 is pressed into the inside of the rotating groove 4, and then pull the top cover 13 to slide upward, so that the top cover 13 and the rotating drum 11 are separated, and then the pyrotechnic powder is put into the inside of the rotating drum 11, and then the top cover 13 is covered and pressed downward, so that the top cover 13 cooperates with the gasket 12 to be engaged with the inside of the rotating drum 11, and then when the top cover 13 slides outside the motor 2, the top block 5 automatically pops out after reaching the position, and presses on the bottom of the top cover 13, and then the threaded sleeve 8 is screwed on, and finally the motor 2 is started, and the motor 2 drives The drum 11 rotates, causing the pyrotechnic powder inside the drum 11 to rotate and cooperate with the conductive coating 15 and rubber beans 16 inside the drum 11 to collide, and then the brittleness of the pyrotechnic powder is detected. The material of the fixed sleeve 9 is polyethylene, which is an insulating material and is not conductive. The material of the protective sleeve 10 is rubber, which is a non-conductive material and will not generate static electricity, thereby not stimulating the internal pyrotechnic powder. Then the rotating column 20 and the rotating block 19 can support the drum 11 to rotate. While cooperating with the rotation of the drum 11, the static electricity generated on the surface of the drum 11 will be transmitted downward through the rotating column 20, thereby reducing the possibility of harm.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pyrotechnic powder friability tester, comprising a housing (1), characterized in that: The box body (1) is fixedly connected to the inside of the driving assembly, a rotating groove (4) is provided on the right side of the driving assembly, a top block (5) is rotatably connected to the inside of the rotating groove (4), a connecting column (6) is fixedly connected to the left side of the top block (5), a spring (7) is sleeved on the outside of the connecting column (6), a threaded sleeve (8) is threadedly connected to the top of the driving assembly, a fixed sleeve (9) is slidably connected to the outside of the driving assembly, a protective sleeve (10) is sleeved on the outside of the fixed sleeve (9), a rotating drum (11) is fixedly connected to the outside of the rotating drum (11), a gasket (12) is fixedly connected to the top end of the inside of the rotating drum (11), and a top cover (13) is arranged inside the gasket (12).

2. A pyrotechnic powder friability tester according to claim 1, characterized in that: The driving assembly comprises a motor (2), the top of the motor (2) is fixedly connected to the inside of the box (1), and the driving end of the motor (2) is fixedly connected to a connecting rod (3).

3. A pyrotechnic powder friability tester according to claim 1, characterized in that: The left and right sides of the fixed sleeve (9) are fixedly connected to rotating rods (14), the outsides of the two rotating rods (14) are fixedly connected to conductive coatings (15), and the outsides of the two conductive coatings (15) are fixedly connected to a plurality of rubber beans (16). The bottom of the rotating drum (11) is provided with a limiting groove (17), and the top of the box body (1) is provided with a second rotating groove (18), the inside of the second rotating groove (18) is rotatably connected to a rotating block (19), and the top of the rotating block (19) is rotatably connected to a rotating column (20).

4. A pyrotechnic powder friability tester according to claim 1, characterized in that: The four corners of the bottom of the box body (1) are fixedly connected to support columns (21), and the front side of the box body (1) is rotatably connected to a revolving door (22).

5. A pyrotechnic powder friability tester according to claim 1, characterized in that: One side of the spring (7) is fixedly connected to the left side of the top block (5), and the other side of the spring (7) is fixedly connected to the inside of the rotating groove 1 (4).

6. A pyrotechnic powder friability tester according to claim 1, characterized in that: The outside of the connecting column (6) is slidably connected to the inside of the rotating groove (4), and the bottom of the top block (5) is in contact with the top of the top cover (13).

7. A pyrotechnic powder friability tester according to claim 1, characterized in that: The material of the fixing sleeve (9) is polyethylene, and the material of the protective sleeve (10) is rubber.

8. A pyrotechnic powder friability tester according to claim 3, characterized in that: The top of the rotating column (20) is engaged with the inside of the limiting groove (17), and the outside of the rotating column (20) is rotatably connected to the inside of the second rotating groove (18).

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