Safety helmet compression resistance detection device

Abstract

The utility model provides a safety helmet compression resistance detection device, and belongs to the technical field of safety helmet detection. The safety helmet compression resistance detection device comprises a detection table and a pressing plate, a fixing mechanism is arranged on the detection table and comprises an air cylinder, a fixing block, a positioning rod, a rotating rod, a fixing base and a fixing plate, and the fixing block is fixedly connected to the telescopic end of the air cylinder; the positioning rod is fixedly connected to the outer side of the fixing block; the positioning rod is in sliding connection with the rotating rod; the fixed seat is fixedly connected to the top of the detection table, and the rotating rod is rotationally connected with the fixed seat; the safety helmet is placed on the detection table, then the air cylinder is started, the telescopic end of the air cylinder retracts to drive the fixing block to be away from the safety helmet, the fixing block drives the rotating rod to rotate around the fixing base through the positioning rod, the rotating rod drives the fixing plate to rotate, and the fixing plate extrudes and fixes the safety helmet. The safety helmet is effectively prevented from sliding during detection, and the detection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety helmet detection, in particular to a safety helmet compression resistance detection device. Background Art

[0002] A hard hat is a personal protective equipment used to protect the head from external impact and injury. It usually consists of an outer shell and an inner lining. The outer shell is usually made of materials such as plastic, fiber composite materials or metal, and the inner lining is a layer of soft material such as foam or cotton to provide cushioning and comfort. The main function of a hard hat is to disperse and absorb impact forces from above, side or lateral to protect the head from serious injury. They are widely used in various fields such as construction sites, industrial manufacturing, transportation, sports, etc. to reduce the risk of head injury during work and exercise. Common types of hard hats include: industrial hard hats, capsule hard hats, high temperature hard hats and welding hard hats. When choosing a hard hat, it is necessary to consider bumps, impact, comfort and standards suitable for the workplace. When using a hard hat, it should be worn correctly, ensuring that the hat strap is firm and the hat shell is free of defects, and complying with the corresponding use and maintenance regulations. It is essential to regularly inspect and replace damaged hard hats to ensure that they continue to provide effective head protection. The hard hat compression test device is a device used to test and evaluate the compression performance of hard hats. Hard hats are important personal protective equipment used to protect the head from external impact, so their compression performance is crucial.

[0003] When the existing safety helmet is subjected to compression test, the safety helmet is prone to slip due to deformation, and the compression measurement of the safety helmet is inaccurate and the measurement effect is poor. Therefore, we propose a safety helmet compression test device to solve the above problem. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a safety helmet compression resistance detection device that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model provides a safety helmet pressure resistance detection device, comprising

[0006] A testing platform and a pressing plate, wherein the testing platform is provided with a fixing mechanism, and the fixing mechanism comprises

[0007] A cylinder, wherein the cylinder is installed above the testing platform;

[0008] A fixed block, the fixed block being fixedly connected to the telescopic end of the cylinder;

[0009] A positioning rod, the positioning rod is fixedly connected to the outer side of the fixing block;

[0010] A rotating rod, wherein the positioning rod is slidably connected to the rotating rod;

[0011] A fixed seat, the fixed seat is fixedly connected to the top of the testing platform, and the rotating rod is rotatably connected to the fixed seat;

[0012] A fixed plate is fixedly connected to the rotating rod.

[0013] In a preferred solution, two of the rotating rods and two of the fixing plates are provided, and the outer walls of the two fixing plates are fixedly connected with anti-skid protrusions, and a plurality of the anti-skid protrusions are provided and are evenly arranged.

[0014] In a preferred solution, a slide rail is fixedly connected to the top of the detection platform, and the fixed seat is slidably connected to the slide rail.

[0015] In a preferred solution, two fixing mechanisms are provided, and the two fixing mechanisms are symmetrically arranged on the left and right.

[0016] In a preferred solution, a protective mechanism is also provided on the testing platform, and the protective mechanism includes a protective cover and a front baffle. The protective cover is fixedly connected to the top of the testing platform, the front baffle is slidably connected to the protective cover, and the cylinder is fixedly connected to the outer wall of the protective cover.

[0017] In a preferred solution, a column is fixedly connected to the top of the detection platform, and a toothed plate is fixedly connected between the inner walls of the columns.

[0018] In a preferred embodiment, the column is slidably connected to a slider, the slider is fixedly connected to the front baffle, the outer wall of the slider is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a gear, and the gear is meshingly connected to a gear plate.

[0019] In a preferred solution, a hydraulic telescopic rod is fixedly connected to the top of the protective cover, and the pressure plate is fixedly connected to the telescopic end of the hydraulic telescopic rod.

[0020] The utility model provides a safety helmet compression detection device, and its beneficial effects include:

[0021] 1. Place the safety helmet on the test bench and then start the cylinder. The telescopic end of the cylinder retracts to drive the fixed block away from the safety helmet. The fixed block drives the rotating rod to rotate around the fixed seat through the positioning rod. The rotating rod drives the fixed plate to rotate. The fixed plate squeezes and fixes the safety helmet, effectively preventing the safety helmet from sliding during testing and improving the testing effect.

[0022] 2. By starting the motor, the output end of the motor drives the shaft to rotate, and the shaft drives the gear to rotate. Since the gear is meshed with the toothed plate, the slider slides down along the column, and the slider drives the front baffle to descend, blocking the front side of the protective cover, and cooperates with the protective cover to protect the detection area, preventing the safety helmet from rebounding or debris from splashing and falling on people, thereby protecting the safety of the inspectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a three-dimensional diagram of the overall structure provided by the embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the internal structure of the protective cover provided in the embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the fixing mechanism structure provided for an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the cross section of a slider and a column structure provided in an embodiment of the utility model;

[0028] In the figure: 1. test bench; 2. fixing mechanism; 201. cylinder; 202. fixing block; 203. rotating rod; 204. fixing seat; 205. fixing plate; 206. anti-skid protrusion; 207. slide rail; 208. positioning rod; 3. protection mechanism; 301. protection cover; 302. front baffle; 303. column; 304. tooth plate; 305. slider; 306. motor; 307. rotating shaft; 308. gear; 4. pressure plate; 5. hydraulic telescopic rod. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-Figure 4The utility model provides a technical solution: a safety helmet compression test device, including a test platform 1 and a pressure plate 4, the test platform 1 is provided with a fixing mechanism 2, the fixing mechanism 2 includes a cylinder 201, a fixing block 202, a positioning rod 208, a rotating rod 203, a fixing seat 204 and a fixing plate 205, the cylinder 201 is installed above the test platform 1; the fixing block 202 is fixedly connected to the telescopic end of the cylinder 201; the positioning rod 208 is fixedly connected to the outer side of the fixing block 202; the positioning rod 208 is slidably connected to the rotating rod 203; the fixing seat 204 is fixedly connected to the top of the test platform 1 The rotating rod 203 is rotatably connected with the fixing seat 204; the fixing plate 205 is fixedly connected with the rotating rod 203, and a slide groove is provided on the rotating rod 203. The positioning rod 208 is slidably connected with the inside of the slide groove. By placing the safety helmet on the detection platform 1 and then starting the cylinder 201, the telescopic end of the cylinder 201 retracts and drives the fixing block 202 away from the safety helmet. The fixing block 202 drives the rotating rod 203 to rotate around the fixing seat 204 through the positioning rod 208. The rotating rod 203 drives the fixing plate 205 to rotate. The fixing plate 205 squeezes and fixes the safety helmet, effectively preventing the safety helmet from sliding during detection, thereby improving the detection effect.

[0031] In a preferred embodiment, two rotating rods 203 and two fixing plates 205 are provided, and the outer walls of the two fixing plates 205 are fixedly connected with anti-skid protrusions 206, and a plurality of anti-skid protrusions 206 are provided, and the plurality of anti-skid protrusions 206 are evenly arranged, and the anti-skid protrusions 206 are made of rubber material, and are used to increase the friction between the safety helmet and the fixing plate 205, thereby improving the fixing effect;

[0032] In a preferred embodiment, a slide rail 207 is fixedly connected to the top of the testing platform 1, and the fixed block 202 is slidably connected to the slide rail 207. By providing the slide rail 207, the slide rail 207 is used to assist the movement of the fixed block 202 and increase the supporting force of the fixed block 202, thereby improving the extrusion capacity;

[0033] In a preferred embodiment, two fixing mechanisms 2 are provided, and the two fixing mechanisms 2 are symmetrically arranged. By providing two fixing mechanisms 2, by applying pressure on both sides of the helmet, the symmetrical squeezing force on both sides makes the fixation more secure;

[0034] In a preferred embodiment, a protective mechanism 3 is also provided on the detection platform 1, and the protective mechanism 3 includes a protective cover 301 and a front baffle plate 302. The protective cover 301 is fixedly connected to the top of the detection platform 1, and the front baffle plate 302 is slidably connected to the protective cover 301. The cylinder 201 is fixedly connected to the outer wall of the protective cover 301. The top of the detection platform 1 is fixedly connected to a column 303, and a tooth plate 304 is fixedly connected between the inner walls of the columns 303. The column 303 is slidably connected to a slider 305, and the slider 305 is fixedly connected to the front baffle plate 302. The outer wall of the slider 305 is fixedly connected to a motor 306, and the output end of the motor 306 is fixedly connected to a rotating shaft 307. The outer wall of the rotating shaft 307 The wall is fixedly connected with a gear 308, which is meshed with the tooth plate 304. By starting the motor 306, the output end of the motor 306 drives the shaft 307 to rotate, and the shaft 307 drives the gear 308 to rotate. Since the gear 308 is meshed with the tooth plate 304, the slider 305 slides downward along the column 303, and the slider 305 drives the front baffle 302 to descend, blocking the front side of the protective cover 301, and cooperates with the protective cover 301 to protect the detection area, prevent the safety helmet from rebounding or debris from splashing and falling on people, and protect the safety of the detection personnel. The motor 306 is electrically connected to the external power supply, and the protective cover 301 and the front baffle 302 are both set to transparent materials;

[0035] In a preferred embodiment, a hydraulic telescopic rod 5 is fixedly connected to the top of the protective cover 301, and a pressure plate 4 is fixedly connected to the telescopic end of the hydraulic telescopic rod 5. By starting the hydraulic telescopic rod 5, the telescopic end of the hydraulic telescopic rod 5 drives the pressure plate 4 to descend, and the pressure plate 4 hits the safety helmet for detection, and repeated tests are performed by applying different forces.

[0036] Specifically, the working process or working principle of the safety helmet compression resistance testing device is as follows: the tester places the safety helmet on the testing platform 1, and then starts the cylinder 201. The telescopic end of the cylinder 201 retracts to drive the fixed block 202 away from the safety helmet. The fixed block 202 drives the rotating rod 203 to rotate around the fixed seat 204 through the positioning rod 208. The rotating rod 203 drives the fixed plate 205 to rotate. The fixed plate 205 squeezes and fixes the safety helmet, effectively preventing the safety helmet from sliding during testing. By setting two fixing mechanisms 2, pressure is applied on both sides of the safety helmet, and the symmetrical squeezing force on both sides makes the fixation more secure.

[0037] Then start the motor 306, the output end of the motor 306 drives the shaft 307 to rotate, the shaft 307 drives the gear 308 to rotate, and the gear 308 is meshed with the toothed plate 304, so that the slider 305 slides downward along the column 303, the slider 305 drives the front baffle 302 to descend, blocking the front side of the protective cover 301, and cooperates with the protective cover 301 to protect the detection area to prevent the safety helmet from rebounding or debris from splashing and falling on people. Finally, start the hydraulic telescopic rod 5, the telescopic end of the hydraulic telescopic rod 5 drives the pressure plate 4 to descend, and the pressure plate 4 hits the safety helmet for detection, and repeated tests are performed by applying different forces.

Claims

1. A safety helmet compression testing device, characterized in that: The invention comprises a testing platform (1) and a pressing plate (4), wherein a fixing mechanism (2) is arranged on the testing platform (1), and the fixing mechanism (2) comprises A cylinder (201), wherein the cylinder (201) is installed above the detection platform (1); A fixed block (202), wherein the fixed block (202) is fixedly connected to the telescopic end of the cylinder (201); A positioning rod (208), wherein the positioning rod (208) is fixedly connected to the outer side of the fixing block (202); A rotating rod (203), wherein the positioning rod (208) is slidably connected to the rotating rod (203); A fixed seat (204), the fixed seat (204) is fixedly connected to the top of the detection platform (1), and the rotating rod (203) is rotatably connected to the fixed seat (204); A fixed plate (205), wherein the fixed plate (205) is fixedly connected to the rotating rod (203).

2. A safety helmet compression testing device according to claim 1, characterized in that: The rotating rod (203) and the fixing plate (205) are both provided with two, and the outer walls of the two fixing plates (205) are both fixedly connected with anti-skid protrusions (206), and the anti-skid protrusions (206) are provided in a plurality, and the plurality of anti-skid protrusions (206) are evenly arranged.

3. A safety helmet compression testing device according to claim 2, characterized in that: The top of the detection platform (1) is fixedly connected with a slide rail (207), and the fixed block (202) is slidably connected to the slide rail (207).

4. A safety helmet compression testing device according to claim 1, characterized in that: Two fixing mechanisms (2) are provided, and the two fixing mechanisms (2) are arranged symmetrically on the left and right.

5. A safety helmet compression testing device according to claim 1, characterized in that: The detection platform (1) is also provided with a protection mechanism (3), the protection mechanism (3) comprising a protection cover (301) and a front baffle (302), the protection cover (301) being fixedly connected to the top of the detection platform (1), the front baffle (302) being slidably connected to the protection cover (301), and the cylinder (201) being fixedly connected to the outer wall of the protection cover (301).

6. A safety helmet compression testing device according to claim 5, characterized in that: A column (303) is fixedly connected to the top of the detection platform (1), and a toothed plate (304) is fixedly connected between the inner walls of the column (303).

7. A safety helmet compression testing device according to claim 6, characterized in that: The column (303) is slidably connected to a slider (305), the slider (305) is fixedly connected to the front baffle (302), the outer wall of the slider (305) is fixedly connected to a motor (306), the output end of the motor (306) is fixedly connected to a rotating shaft (307), the outer wall of the rotating shaft (307) is fixedly connected to a gear (308), and the gear (308) is meshingly connected to the toothed plate (304).

8. A safety helmet compression testing device according to claim 5, characterized in that: The top of the protective cover (301) is fixedly connected to a hydraulic telescopic rod (5), and the pressing plate (4) is fixedly connected to the telescopic end of the hydraulic telescopic rod (5).

Images