Safety helmet vertical distance measuring instrument

Abstract

The utility model relates to a helmet vertical distance measuring instrument, which comprises a horizontal bedplate and a measuring assembly arranged on one side of the horizontal bedplate, the measuring assembly comprises a transverse linear module installed on one side of the top face of the horizontal platen, a longitudinal linear module vertically connected with the transverse linear module, a horizontal target plate installed at the top end of the longitudinal linear module, an electric rotary table connected with a sliding table of the longitudinal linear module, a supporting plate connected with the electric rotary table, and a digital display instrument installed on one face of the supporting plate. The pressing plate is installed on one side of the digital display instrument in a floating mode, and the infrared distance sensors are installed on the supporting plate and the digital display instrument respectively. And the two infrared distance sensors are electrically connected with the digital display instrument. The safety helmet vertical distance measuring instrument is simple in structure and convenient to use, the longitudinal linear module drives the pressing plate to abut against the safety helmet, the vertical distance of the safety helmet is effectively measured through the infrared distance sensor, manual operation is omitted, and the measuring speed and the measuring precision are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety helmet quality measurement, in particular to a safety helmet vertical spacing measuring instrument. Background Art

[0002] A safety helmet is a hat that protects the head from falling objects and other specific factors. It can buffer shock and disperse stress, effectively protecting the wearer's head. Before leaving the factory, the safety helmet needs to be measured for vertical clearance, mainly because the vertical clearance reflects the gap between the inside of the helmet shell and the top of the head. The size of this gap has an important impact on the effectiveness of the safety helmet and the comfort of the wearer.

[0003] Traditional manufacturers use contact measurement, where workers directly touch the helmet while operating the measuring tool. During measurement, it is necessary to ensure stable contact between the measuring tool and the helmet, which may take more time and effort, and the measurement speed is usually slow. In addition, due to the instability of human operation, the deformation or offset of the measuring tool is likely to occur during the operation, which may lead to an increase in measurement errors, thereby affecting the accuracy of the measurement results. Utility Model Content

[0004] Based on this, the utility model provides a safety helmet vertical spacing measuring instrument with simple structure and easy use. The longitudinal linear module drives the pressure plate to abut the safety helmet, and the vertical spacing of the safety helmet is effectively measured through the infrared distance sensor, which eliminates manual operation and greatly improves the measurement speed and measurement accuracy.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] A safety helmet vertical spacing measuring instrument comprises: a horizontal platform plate, and a measuring assembly installed on one side of the horizontal platform plate; the measuring assembly comprises a horizontal linear module installed on one side of the top surface of the horizontal platform plate, a longitudinal linear module vertically connected to the horizontal linear module, a horizontal target plate installed on the top of the longitudinal linear module, an electric turntable connected to the slide of the longitudinal linear module, a support plate connected to the electric turntable, a digital display installed on one side of the support plate, a pressure plate floatingly installed on one side of the digital display, and infrared distance sensors respectively installed on the support plate and the digital display; two infrared distance sensors are electrically connected to the digital display; the detection heads of the two infrared distance sensors are in the same plane, and the detection heads of the two infrared distance sensors are both facing the horizontal target plate.

[0007] The above-mentioned helmet vertical spacing measuring instrument has a simple structure and is easy to use. The longitudinal linear module drives the pressure plate to abut the helmet, and the infrared distance sensor is used to effectively measure the vertical spacing of the helmet, eliminating manual operation and greatly improving the measurement speed and measurement accuracy.

[0008] In one embodiment, a transfer pin is connected to one side of the digital display, and a pressure sensor is sandwiched between the bottom surface of the transfer pin and the top surface of the pressure plate.

[0009] In one embodiment, the digital display is provided with two display screens, and the display screens correspond to the infrared distance sensors one by one.

[0010] In one of the embodiments, a positioning boss is convexly provided on the top surface of the horizontal platform, and the positioning boss is used to position the safety helmet.

[0011] In one embodiment, the positioning boss is configured as a truncated cone, and the diameter of the positioning boss gradually decreases upward along the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional schematic diagram of a safety helmet vertical spacing measuring instrument according to an embodiment of the utility model;

[0013] Figure 2 for Figure 1 A three-dimensional schematic diagram of another viewing angle of the safety helmet vertical spacing measuring instrument shown;

[0014] Figure 3 for Figure 1 An exploded schematic diagram of the measuring components in the hard hat vertical spacing measuring instrument shown;

[0015] Figure 4 for Figure 1 The internal assembly diagram of the digital display and pressure plate in the safety helmet vertical spacing measuring instrument is shown.

[0016] Notes on the attached drawings:

[0017] 10-horizontal platform plate, 11-positioning boss;

[0018] 20- measuring component, 21- horizontal linear module, 22- vertical linear module, 23- horizontal target plate, 24- electric turntable, 25- support plate, 26- digital display, 27- pressure plate, 28- infrared distance sensor, 29- pressure sensor. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention 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 of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0022] See also Figures 1 to 4 , is a safety helmet vertical spacing measuring instrument according to an embodiment of the present invention, comprising a horizontal platform plate 10 and a measuring assembly 20 installed on one side of the horizontal platform plate 10 .

[0023] A positioning boss 11 is convexly provided on the top surface of the horizontal platform 10, and the positioning boss 11 is used for positioning and placing a safety helmet.

[0024] In this embodiment, the positioning boss 11 is arranged in a truncated cone shape, and the diameter of the positioning boss 11 gradually decreases upward along the vertical direction.

[0025] The measuring assembly 20 includes a horizontal linear module 21 installed on one side of the top surface of the horizontal platform 10, a longitudinal linear module 22 vertically connected to the horizontal linear module 21, a horizontal target plate 23 installed on the top of the longitudinal linear module 22, an electric turntable 24 connected to the slide of the longitudinal linear module 22, a support plate 25 connected to the electric turntable 24, a digital display 26 installed on one side of the support plate 25, a pressure plate 27 floatingly installed on one side of the digital display 26, and infrared distance sensors 28 respectively installed on the support plate 25 and the digital display 26; the two infrared distance sensors 28 are electrically connected to the digital display 26. The detection heads of the two infrared distance sensors 28 are in the same plane, and the detection heads of the two infrared distance sensors 28 are both facing the horizontal target plate 23.

[0026] Specifically, the digital display 26 is provided with two display screens, which correspond one to one with the infrared distance sensor 28 and are used to display the readings simultaneously. When the readings on the two display screens are completely consistent, it indicates that the pressing plate 27 is currently in a horizontal state, and accurate measurement can be performed at this time. In order to obtain the vertical spacing of the helmet, the total spacing between the horizontal platform 10 and the horizontal target plate 23 is known, and the distance measured by the infrared distance sensor 28 and the spacing between the detection head of the infrared distance sensor 28 and the pressing plate 27 are subtracted from this total spacing. The difference calculated in this way is the required vertical spacing of the helmet, and this difference will be directly displayed on the display screen of the digital display 26 for direct reading.

[0027] If the readings on the two display screens of the digital display 26 are inconsistent during the measurement process, it means that the pressing plate 27 is not completely horizontal. At this time, the electric turntable 24 can be used to fine-tune the angle of the support plate 25 until the readings on the two display screens of the digital display 26 are completely consistent, that is, the horizontal calibration of the pressing plate 27 is achieved. After the calibration is completed, the above-mentioned vertical spacing measurement operation is performed again.

[0028] Compared with the traditional contact measurement method, the utility model adopts advanced non-contact measurement technology, especially using infrared distance sensor 28 for high-precision distance measurement. At the same time, combined with the precise control of electric turntable 24 and digital display 26, the whole measurement process is ensured to be efficient, stable and reliable. This design not only improves the accuracy of measurement, but also greatly simplifies the operation process, bringing great convenience to users.

[0029] In this embodiment, a transfer pin 260 is connected to one side of the digital display 26, and a pressure sensor 29 is sandwiched between the bottom surface of the transfer pin 260 and the top surface of the pressure plate 27. When the pressure plate 27 contacts the helmet and applies a certain pressure, the pressure sensor 29 will sense this change and transmit the signal to the system. When the pressure reaches the preset safety threshold, it means that the pressure plate 27 is completely pressed against the helmet. At this time, the system will issue a command to brake the longitudinal linear module 22 to prevent excessive downward pressure from damaging the helmet. At this time, the vertical spacing data of the helmet is displayed on the digital display 26.

[0030] The above-mentioned helmet vertical spacing measuring instrument has a simple structure and is easy to use. The longitudinal linear module 22 drives the pressure plate 27 to abut the helmet, and the infrared distance sensor 28 effectively measures the vertical spacing of the helmet, eliminating manual operation and greatly improving the measurement speed and measurement accuracy.

[0031] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A safety helmet vertical spacing measuring instrument, characterized in that: include: A horizontal platform plate, and a measuring component installed on one side of the horizontal platform plate; the measuring component includes a horizontal linear module installed on one side of the top surface of the horizontal platform plate, a longitudinal linear module vertically connected to the horizontal linear module, a horizontal target plate installed on the top of the longitudinal linear module, an electric turntable connected to the slide of the longitudinal linear module, a support plate connected to the electric turntable, a digital display installed on one side of the support plate, a pressure plate floatingly installed on one side of the digital display, and infrared distance sensors respectively installed on the support plate and the digital display; two infrared distance sensors are electrically connected to the digital display; the detection heads of the two infrared distance sensors are in the same plane, and the detection heads of the two infrared distance sensors are both facing the horizontal target plate.

2. The safety helmet vertical spacing measuring instrument according to claim 1, characterized in that: One side of the digital display is connected with a transfer pin, and a pressure sensor is sandwiched between the bottom surface of the transfer pin and the top surface of the pressure plate.

3. The safety helmet vertical spacing measuring instrument according to claim 1, characterized in that: The digital display is provided with two display screens, and the display screens correspond to the infrared distance sensors one by one.

4. The safety helmet vertical spacing measuring instrument according to claim 1, characterized in that: A positioning boss is convexly arranged on the top surface of the horizontal platform plate, and the positioning boss is used for positioning and placing the safety helmet.

5. The safety helmet vertical spacing measuring instrument according to claim 4, characterized in that: The positioning boss is arranged in a truncated cone shape, and the diameter of the positioning boss gradually decreases upward along the vertical direction.

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