Underground mining safety helmet

Abstract

The underground mining safety helmet comprises a helmet shell, a lamp holder is fixedly arranged in front of the helmet shell and is of a semi-closed box structure, an inverted trapezoidal lamp holder groove is formed in the upper portion of the lamp holder, a limiting groove is formed in the lower portion of the lamp holder, the limiting groove is communicated with the lamp holder groove, a through hole is formed in the surface of the limiting groove, and the two ends of the top of the lamp holder are connected with guide top ribs respectively. The two guide top ribs are longitudinally arranged and extend to the rear portion of the helmet shell, the miner's lamp connecting plate is clamped between the two guide top ribs, and the miner's lamp connecting plate is provided with a spherical part matched with the through hole, so that when a user wears the lighting miner's lamp, the miner's lamp connecting plate is arranged in the two guide top ribs and slides forwards along the helmet shell, and the miner's lamp connecting plate is connected with the helmet shell. When the mining lamp is mounted on the lamp holder, the mining lamp can slide into the inverted trapezoidal lamp holder groove and the limiting groove along the guide top rib, and the spherical part on the connecting plate is extruded into the limiting groove, clamped into the through hole and then fixed, so that the mining lamp is stably fixed on the lamp holder, a worker can quickly mount the mining lamp on the lamp holder, and the problem that a mining safety helmet is difficult to mount in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mine safety protection equipment, and specifically relates to an underground mine safety helmet. BACKGROUND

[0002] The working environment of a coal mine is complex, narrow and full of various equipment and pipelines, and the roadway wall surface is uneven. Workers need to frequently shuttle between different areas for high-intensity physical operation, and the body swings greatly. At the same time, strong vibration is generated during coal mining and transportation, and the airflow is unstable due to the underground ventilation system. In addition, flammable and explosive gases such as methane exist in the coal mine, and methane detection needs to be performed at all times. The placement and use of methane detection equipment also occupy a certain space, further increasing the complexity of the environment. These factors increase the possibility of the mine lamp falling off the safety helmet, and have a certain impact on the safety and efficiency of the operation.

[0003] When the mine lamp falls off by accident, it is difficult for the worker to effectively mount it back on the safety helmet at one time. This is mainly because the light is dim underground, and only limited backup lighting is available. The worker's vision is blocked, and it is difficult to accurately aim the mounting slot of the mine lamp and the safety helmet. In addition, in an emergency situation, such as detecting abnormal methane concentration, the worker may deform due to nervousness, further reducing the accuracy of the mounting. In addition, the mine lamp and the safety helmet are eroded by the harsh underground environment for a long time, and the mounting part may be worn and deformed, resulting in a decrease in the fit, increasing the difficulty of re-mounting.

[0004] In the prior art, there are some safety helmets, such as the patent with publication number CN210747490U, which discloses a safety helmet. The front of the helmet shell is provided with a front lamp holder through bolts, the lamp holder is a vertical structure, and a spring sheet is installed inside the lamp holder to fix the illuminating lamp. In this scheme, the front lamp holder is a rectangular structure, and when the illuminating lamp needs to be hung back on the safety helmet, the connecting piece of the illuminating lamp needs to be accurately pointed into the front lamp holder slot and then pushed into the spring sheet to form a fixed extrusion. However, in the complex and dark environment underground, it is difficult for the connecting piece of the illuminating mine lamp to accurately point to the lamp holder slot, making it necessary to re-mount at different azimuth angles multiple times, especially when the methane concentration is abnormal and the worker is in a hurry to handle it. Therefore, the illuminating mine lamp mounting has a large room for improvement. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an underground mine safety helmet that can be quickly mounted by the worker after the illuminating mine lamp falls off, solving the problem of high mounting difficulty of the mine safety helmet in the prior art.

[0006] The utility model discloses a technical scheme is, the underground mine safety helmet, including the cap shell, the lamp holder is fixedly arranged in the cap shell front, and the lamp holder is the semi -closed box body structure, and the lamp holder upper portion is opened the inverted trapezoidal lamp holder groove, and the lower portion is equipped with the limiting slot, and the limiting slot is communicated with the lamp holder groove and the limiting slot surface is opened the through -hole, and the lamp holder top two ends are connected the guide top rib respectively, and two guide top ribs are arranged longitudinally and extend to the rear of the cap shell, and the miner's lamp connecting plate is inserted between two guide top ribs and is equipped with the spherical part that matches with the through -hole on the miner's lamp connecting plate, and the spherical part is inserted into the through -hole after the miner's lamp connecting plate is slipped into the limiting slot and realizes the limit.

[0007] Preferably, the horizontal width of the miner's lamp connecting plate is 5-8mm smaller than the limiting slot.

[0008] Preferably, the bottom of the cap shell is provided with a rectangular air grille on each side.

[0009] Preferably, the air grille is provided with a methane sensor inside, and the methane sensor is electrically connected to an alarm, which is arranged outside the cap shell.

[0010] Preferably, the cap shell is provided with a cap removal sensor inside, which is a pressure sensor installed directly above the cap shell, and the cap removal sensor is connected to an alarm, which is arranged outside the cap shell.

[0011] Preferably, the guide top rib protrudes 1-2cm above the surface of the cap shell.

[0012] Preferably, the edge of the cap shell bottom extends outward to form a brim, and the width of the brim in front of the cap shell is greater than that on both sides and at the back.

[0013] Compared with the prior art, the safety helmet has the following advantages: when wearing the safety helmet with a miner's lamp, the miner's lamp connecting plate is placed between the two guide top ribs and slid forward along the cap shell, and then the spherical part on the connecting plate is pressed into the limiting slot and fixed in the through -hole, so that the miner's lamp is firmly fixed on the lamp holder, and workers can quickly mount the safety helmet, solving the problem of difficulty in mounting the safety helmet in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the safety helmet.

[0015] Figure 2 It is a front view of the safety helmet.

[0016] Figure 3 It is a side view of the safety helmet.

[0017] Figure 4 It is a top view of the safety helmet.

[0018] Figure 5It is a schematic view of the lamp holder structure.

[0019] Figure 6 It is a schematic view of the internal structure of the lamp holder. DETAILED DESCRIPTION

[0020] The present application will be further explained in conjunction with the accompanying drawings of the specification, so that the professionals in the field can better understand it. EMBODIMENT

[0021] As Figures 1-6 shown, the underground mine safety helmet includes a helmet shell 1, a lamp holder 2, a guide top rib 3, a brim 4, and a ventilation grille 5.

[0022] The front of the safety helmet's helmet shell 1 is bolted to the lamp holder 2, which is a semi-closed box structure. The upper part of the lamp holder 2 is provided with an inverted trapezoidal lamp holder groove 201, and the lower part is provided with a limiting groove 202 that is in communication with the lamp holder groove 201 and has a through hole 203 on its surface. The two ends of the top of the lamp holder 2 are connected to the guide top rib 3, which is arranged longitudinally and extends to the back of the helmet shell 1. The miner's lamp connecting plate is inserted between the two guide top ribs 3, and the plate is provided with a spherical part that matches the through hole 203. After the plate is slid into the limiting groove 202, the spherical part is inserted into the through hole 203 to limit the movement.

[0023] Further, the guide top rib 3 and the lamp holder 2 are closely connected and pass through each other. The miner's lamp connecting plate can be placed along the guide top rib 3 towards the lamp holder 2. The horizontal width of the plate is 5-8mm smaller than the limiting groove. When wearing the miner's lamp, the plate is placed between the two guide top ribs 3 and slid forward along the helmet shell 1, and then it can be slid into the inverted trapezoidal lamp holder groove 201 along the guide top rib 3. The guide top rib 3 protrudes 1-2cm above the surface of the helmet shell, which is beneficial to the placement of the miner's lamp wire harness in the guide top rib 3 and prevents the wire harness from sliding to other positions.

[0024] In order to exchange air with the outside of the helmet shell 1 and ventilate and dissipate heat, the bottom of each side of the helmet shell 1 is provided with a rectangular ventilation grille 5.

[0025] Further, the ventilation grille 5 is provided with a methane sensor. In this embodiment, the methane sensor can be a 1653nm methane butterfly laser produced by Jingxun Changtong, which can emit from the edge and has good wavelength control and stability. The methane sensor is electrically connected to an alarm, which is arranged on the outside of the helmet shell. The methane sensor is used to detect the methane content of the air in the mine. When the methane concentration of the external air reaches the set standard value, the alarm will sound to remind the wearer. The methane sensor is connected to the underground monitoring system, and the coal mine command and dispatch center will also receive real-time data from the methane sensor, which is convenient for timely processing.

[0026] The cap shell is internally provided with a cap-off sensor, the cap-off sensor adopts a pressure sensor, in the embodiment, the pressure sensor adopts a VHDP503 sensor produced by VISTE, is installed right above the inside of the cap shell, the cap-off sensor is connected with an alarm, and the alarm is arranged on the outside of the cap shell.

[0027] In order to improve the protection of the safety helmet, the bottom edge of the cap shell 1 extends outward and is provided with a brim 4, and the width of the brim 4 in front of the cap shell 1 is greater than the width of the brim 4 on both sides and at the back of the cap shell 1.

[0028] The whole structure is simplified, the wearing burden of the mine workers is reduced, safety is ensured, meanwhile, the temperature in the safety helmet can be efficiently reduced during wearing, and the workers feel more comfortable and cool on the head.

[0029] The above-described embodiments are only used for describing the preferred embodiments of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit and principles of the utility model, various deformations and improvements of the technical solutions of the utility model made by the person skilled in the art should fall within the protection scope determined by the claim book of the utility model.

Claims

1. A safety helmet for use in underground mines, characterised in that, The utility model relates to a cap shell (1) is provided with the lamp stand (2) in front, the lamp stand (2) is half closed box body structure, the lamp stand (2) upper portion is set up the lamp stand groove (201) of inverted trapezoidal, lower portion is equipped with the limiting groove (202), the limiting groove (202) is communicated with the lamp stand groove (201) and limiting groove (202) surface is set up the through -hole (203), the lamp stand (2) top both ends are connected the guide top rib (3) respectively, two guide top ribs (3) longitudinal arrangement and extend to the rear of cap shell (1), the miner's lamp connecting plate is inserted between two guide top ribs (3) and is equipped with the spherical part that matches with the through -hole (203) on the miner's lamp connecting plate, and the spherical part is inserted into the through -hole (203) after the miner's lamp connecting plate is slipped into the limiting groove (202) and realizes the limit.

2. The mine safety helmet according to claim 1, characterized in that The horizontal width of the miner's lamp connecting plate is 5-8mm less than the limiting groove (202).

3. The underground mining safety helmet of claim 1, wherein, The cap shell (1) is provided with a rectangular air grille (5) at the bottom of both sides.

4. The mine safety helmet according to claim 3, characterised in that The air grille (5) is provided with a methane sensor inside, and the methane sensor is electrically connected to an alarm, which is arranged outside the cap shell (1).

5. The underground mining safety helmet of claim 1, wherein, The cap shell (1) is provided with a cap removal sensor inside, which is a pressure sensor installed directly above the cap shell (1). The cap removal sensor is connected to an alarm, which is arranged outside the cap shell.

6. The underground mining safety helmet of claim 1, wherein, The guide top rib (3) protrudes 1-2cm above the surface of the cap shell (1).

7. The underground mining safety helmet of claim 1, wherein, The cap shell (1) is provided with a brim (4) extending outward from the bottom edge, and the width of the brim (4) in front of the cap shell (1) is greater than that of the brim (4) at both sides and the rear of the cap shell (1).

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