Anti-static performance testing machine for safety helmet

Abstract

The utility model relates to an anti-static performance testing machine for a safety helmet. The anti-static performance testing machine comprises a machine tool; the electric clamp is mounted on the machine tool; the electrode assemblies are mounted on the two opposite sides of the electric clamp; the electrode assembly comprises a box body, a guide cylinder, a metal ring, a lead screw, a moving block, a telescopic rod, an electrode and a telescopic driving motor; the telescopic rod is telescopically inserted into the guide cylinder, the motor penetrates through the metal ring, and the outer wall of the electrode is in contact with the inner wall of the metal ring; the telescopic driving motor is used for driving the lead screw to rotate; the high-resistance meter is connected with the two electrode assemblies at the same time; the high-resistance meter is installed on the top face of the machine tool and connected with all the metal rings through wires. The anti-static performance testing machine for the safety helmet is simple in structure and convenient to use, the safety helmet is fixed to the electric clamp, the telescopic driving motor is used for driving the electrode to abut against the safety helmet for testing, manual operation is omitted, and the operation efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-static performance testing of safety helmets, in particular to an anti-static performance testing machine for safety helmets. Background Art

[0002] A safety helmet refers to a hat that protects the human head from injuries caused by falling objects and other specific factors, and can buffer and disperse stress, etc., effectively protecting the head safety of the wearer. In some special working environments, such as chemical plants, petrochemical industries, etc., static charges are likely to accumulate in the air. If workers wear ordinary safety helmets that cannot effectively dissipate static electricity, due to excessive charge accumulation, it may cause dangers such as fires and explosions, seriously threatening the lives of workers. Therefore, it is particularly important to test the anti-static performance of safety helmets.

[0003] In the actual detection process, the traditional static electricity tester requires two electrodes to be parallelly attached to the flat parts on both sides of the safety helmet, and the operator needs to hold the electrodes to measure and read the resistance value. However, this operation method requires the operator to manually place and move the electrodes, which is not only inefficient, but also particularly inconvenient when facing a large number of safety helmet detection tasks. Summary of the Utility Model

[0004] Based on this, the utility model provides an anti-static performance testing machine for safety helmets, which has a simple structure and is convenient to use. The safety helmet is fixed on an electric fixture, and the motor is used to drive the electrode to abut against the safety helmet for testing, eliminating manual operation and greatly improving the operation efficiency.

[0005] In order to achieve the purpose of the utility model, the following technical scheme is adopted:

[0006] An anti-static performance testing machine for safety helmets, comprising:

[0007] A machine tool;

[0008] An electric fixture installed on the machine tool; the electric fixture is used for clamping the safety helmet, and conductive tapes are respectively attached to the opposite sides of the safety helmet;

[0009] Electrode assemblies installed on opposite sides of an electric fixture; the electrode assemblies include a box body installed on the top surface of a machine tool, a guide cylinder fixedly installed at one end of the top surface of the box body, a metal ring coaxially installed at the end of the guide cylinder, a lead screw rotatably installed on the top of the box body, a moving block threadedly engaged with the lead screw, a telescopic rod connected to the surface of the moving block facing the guide cylinder, an electrode coaxially connected to the end of the telescopic rod away from the moving block, and a telescopic drive motor installed inside the box body; the telescopic rod can be telescopically inserted into the inside of the guide cylinder, the motor passes through the metal ring, the outer wall of the electrode contacts the inner wall of the metal ring, and the end of the electrode is used to abut against the conductive tape of a safety helmet; the telescopic drive motor is used to drive the lead screw to rotate; and

[0010] A high resistance meter connected to the two electrode assemblies simultaneously; the high resistance meter is installed on the top surface of the machine tool, and the high resistance meter is respectively connected to each metal ring through wires.

[0011] The above-mentioned safety helmet anti-static performance testing machine has a simple structure and is convenient to use. Fix the safety helmet on the electric fixture, and use the telescopic drive motor to drive the electrode to abut against the safety helmet for testing, eliminating manual operation and greatly improving the operation efficiency.

[0012] In one embodiment, the electric fixture includes a bearing plate, four clamping blocks slidably installed on the top surface of the bearing plate, a turntable rotatably installed inside the bearing plate, and a clamping drive motor installed on the top surface of the machine tool; the rotor of the clamping drive motor is coaxially connected to the turntable.

[0013] In one embodiment, four sliding grooves are respectively radially extended outward from the center of the bearing plate on the top surface of the bearing plate, and the sliding grooves correspond to the clamping blocks one by one; four driving grooves are evenly spaced on the turntable, and the driving grooves are arranged in a spiral shape from the center of the turntable outward, and the driving grooves correspond to the clamping blocks one by one; the bottom end of the clamping block passes through the sliding groove and is inserted into the inside of the driving groove.

[0014] In one embodiment, the axial direction of the guide cylinder is the same as the axial direction of the lead screw.

[0015] In one embodiment, a driving wheel is coaxially installed on the rotor of the telescopic drive motor, a driven wheel is coaxially installed at one end of the lead screw, and the driven wheel is meshed with the driving wheel in a matching manner. Description of the Drawings

[0016] Figure 1 Is a three-dimensional schematic diagram of a safety helmet anti-static performance testing machine according to an embodiment of the present invention;

[0017] Figure 2 Is Figure 1 A three-dimensional schematic diagram of another perspective of the safety helmet anti-static performance testing machine shown;

[0018] Figure 3 Is Figure 1Partial exploded view of the electric fixture in the anti-static performance testing machine for safety helmets shown;

[0019] Figure 4 is Figure 1 Cross-sectional view of the anti-static performance testing machine for safety helmets shown;

[0020] Figure 5 is Figure 4 Enlarged view of the circled area A shown;

[0021] Explanation of the reference numerals in the drawings:

[0022] 10 - Machine tool;

[0023] 20 - Electric fixture, 21 - Carrier plate, 210 - Slide groove, 22 - Clamping block, 23 - Turntable, 230 - Driving groove, 24 - Clamping drive motor;

[0024] 30 - Electrode assembly, 31 - Box body, 32 - Guide cylinder, 33 - Metal ring, 34 - Lead screw, 340 - Driven wheel, 35 - Moving block, 36 - Telescopic rod, 37 - Electrode, 38 - Telescopic drive motor, 380 - Driving wheel;

[0025] 40 - High resistance meter, 41 - Wire. Detailed implementation manners

[0026] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present utility model more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0029] Please refer to Figures 1 to 5, which is an anti-static performance testing machine for a safety helmet according to an embodiment of the present invention, includes a machine tool 10, an electric fixture 20 installed on the machine tool 10, electrode assemblies 30 installed on opposite sides of the electric fixture 20, and a high resistance meter 40 connected to the two electrode assemblies 30 at the same time. Among them, the electric fixture 20 is used to clamp the safety helmet, and conductive tapes are respectively attached to opposite sides of the safety helmet, and the conductive tapes are in one-to-one contact with the electrode assemblies 30.

[0030] The electric fixture 20 includes a bearing plate 21, four clamping blocks 22 slidably installed on the top surface of the bearing plate 21, a turntable 23 rotatably installed inside the bearing plate 21, and a clamping drive motor 24 installed on the top surface of the machine tool 10. The rotor of the clamping drive motor 24 is coaxially connected to the turntable 23 to drive the turntable 23 to rotate. Among them, four sliding grooves 210 are radially extended outward from the center of the bearing plate 21 on the top surface of the bearing plate 21, and the sliding grooves 210 correspond to the clamping blocks 22 one by one; four drive grooves 230 are evenly spaced on the turntable 23, and the drive grooves 230 are arranged in a spiral shape from the center of the turntable 23 outward, and the drive grooves 230 correspond to the clamping blocks 22 one by one; specifically, the bottom end of the clamping block 22 passes through the sliding groove 210 and is inserted into the inside of the drive groove 230 to realize the connection between the clamping block 22 and the bearing plate 21 and the turntable 23.

[0031] When the electric fixture 20 works, the staff only needs to place the safety helmet at the center position of the bearing plate 21, and then start the clamping drive motor 24. The motor 24 drives the turntable 23 to rotate, and the drive groove 230 pushes the clamping block 22 to move along the sliding groove 210, gradually clamping the safety helmet. The whole process does not require manual intervention, greatly improving the operation efficiency and accuracy.

[0032] The electrode assembly 30 includes a box body 31 installed on the top surface of the machine tool 10, a guide cylinder 32 fixedly installed at one end of the top surface of the box body 31, a metal ring 33 coaxially installed at the end of the guide cylinder 32, a lead screw 34 rotatably installed on the top of the box body 31, a moving block 35 threadedly engaged with the lead screw 34, a telescopic rod 36 connected to the surface of the moving block 35 facing the guide cylinder 32, an electrode 37 coaxially connected to the end of the telescopic rod 36 away from the moving block 35, and a telescopic drive motor 38 installed inside the box body 11; the telescopic rod 36 can be telescopically inserted into the inside of the guide cylinder 32, the motor 37 passes through the metal ring 33, the outer wall of the electrode 37 is in contact with the inner wall of the metal ring 33, and the end of the electrode 37 is used to abut against the conductive tape of the safety helmet to test the anti-static performance of the safety helmet.

[0033] Among them, the box body 31 is located on one side of the electric fixture 20. The telescopic drive motor 38 is used to drive the lead screw 34 to rotate. When the lead screw 34 rotates, the moving block 35 will move along the axial line direction of the lead screw 34, thereby driving the movement of the electrode 37. This design enables precise adjustment of the distance between the two electrodes 37 to adapt to safety helmets of different sizes, greatly improving the flexibility of the entire testing machine.

[0034] In this embodiment, the axial line direction of the guide cylinder 32 is the same as the axial line direction of the lead screw 34.

[0035] In this embodiment, a driving wheel 380 is coaxially installed on the rotor of the telescopic drive motor 38, and a driven wheel 340 is coaxially installed at one end of the lead screw 34. The driven wheel 340 is meshed with the driving wheel 380 in a matching manner, enabling the telescopic drive motor 38 to drive the lead screw 34 to rotate.

[0036] The high resistance meter 40 is installed on the top surface of the machine tool 10. The high resistance meter 40 is respectively connected to each metal ring 33 through a wire 41. When the electrode 35 contacts the conductive tape of the safety helmet, a complete test circuit is formed among the high resistance meter 40, the electrode 37, and the safety helmet. Through this circuit, the high resistance meter 40 can accurately measure the anti-static performance of the safety helmet and provide reliable test data for users.

[0037] The above-mentioned safety helmet anti-static performance testing machine has a simple structure and is convenient to use. The safety helmet is fixed on the electric fixture 20, and the telescopic drive motor 38 is used to drive the electrode 37 to abut against the safety helmet for testing, eliminating manual operation and greatly improving the operation efficiency.

[0038] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0039] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An anti-static performance testing machine for safety helmets, characterized in that, Including: Machine tool; An electric fixture installed on the machine tool; the electric fixture is used for clamping a safety helmet, and conductive tapes are respectively attached to opposite sides of the safety helmet; Electrode assemblies installed on opposite sides of the electric fixture; the electrode assemblies include a box body installed on the top surface of the machine tool, a guiding cylinder fixedly installed at one end of the top surface of the box body, a metal ring coaxially installed at the end of the guiding cylinder, a lead screw rotatably installed on the top of the box body, a moving block threadedly engaged with the lead screw, a telescopic rod connected to the surface of the moving block facing the guiding cylinder, an electrode coaxially connected to the end of the telescopic rod away from the moving block, and a telescopic driving motor installed inside the box body; the telescopic rod can be telescopically inserted into the guiding cylinder, the motor passes through the metal ring, the outer wall of the electrode contacts the inner wall of the metal ring, and the end of the electrode is used for abutting against the conductive tape of the safety helmet; the telescopic driving motor is used for driving the lead screw to rotate; and A high resistance meter simultaneously connecting two electrode assemblies; the high resistance meter is installed on the top surface of the machine tool, and the high resistance meter is respectively connected to each metal ring through wires.

2. The anti-static performance testing machine for safety helmets according to claim 1, wherein The electric fixture includes a bearing plate, four clamping blocks slidably installed on the top surface of the bearing plate, a turntable rotatably installed inside the bearing plate, and a clamping driving motor installed on the top surface of the machine tool; the rotor of the clamping driving motor is coaxially connected to the turntable.

3. The anti-static performance testing machine for safety helmets according to claim 2, characterized in that, On the top surface of the bearing plate, four sliding grooves are respectively radially extended outward from the center of the bearing plate, and the sliding grooves correspond to the clamping blocks one by one; four driving grooves are evenly spaced on the turntable, the driving grooves are arranged in a spiral shape from the center of the turntable outward, and the driving grooves correspond to the clamping blocks one by one; the bottom end of the clamping block passes through the sliding groove and is inserted into the driving groove.

4. The anti-static performance testing machine for safety helmets according to claim 1, wherein, The axial direction of the guiding cylinder is the same as the axial direction of the lead screw.

5. The anti-static performance testing machine for safety helmets according to claim 1, characterized in that, A driving wheel is coaxially installed on the rotor of the telescopic driving motor, a driven wheel is coaxially installed at one end of the lead screw, and the driven wheel is meshed with the driving wheel in a matching manner.

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