Safety helmet for underground coal mine

Abstract

The utility model belongs to the technical field of safety helmets, and discloses a safety helmet for an underground coal mine, which comprises a helmet body and a mask, the mask is made of transparent materials, a connecting block is arranged at the bottom of the helmet body, a connecting groove is arranged at the top of the mask, the connecting block is matched with the connecting groove, clamping blocks are movably connected with the front side and the rear side of the connecting block, and the clamping blocks are matched with the connecting groove. Clamping grooves are formed in the front side and the rear side of the mask, the mask and the cap body can be assembled by taking out the mask, clamping the connecting blocks at the bottom of the cap body into the connecting grooves in the top of the mask and clamping the clamping blocks into the clamping grooves, the mask and the cap body can be disassembled when not used, the mask can be selected to be used or disassembled according to conditions, and practicability is high. The clamping block is pressed down, the spring stretches out and draws back to enter the groove, the clamping block is separated from the clamping groove, and the connecting block is separated from the connecting groove, convenience is brought to disassembly work, the cover body is opened, oxygen is introduced through the air inlet, the device can be used in a well with weak oxygen, and the functionality of the device is powerful.

Description

Technical Field

[0001] The utility model belongs to the technical field of safety helmets, and particularly relates to a safety helmet for use in coal mines underground. Background Technique

[0002] A safety helmet refers to a hat that protects the human head from injuries caused by falling objects and other specific factors. A safety helmet consists of a hat shell, a hat lining, a chin strap and accessories, etc.

[0003] At present, there are still some defects in the use of existing safety helmets for use in coal mines underground. They often do not have a face mask or the face mask is fixed under the safety helmet, and it is not possible to select or disassemble the face mask according to the situation, so the practicability is not strong. For this reason, we propose a safety helmet for use in coal mines underground. Content of the Utility Model

[0004] The purpose of the utility model is to provide a safety helmet for use in coal mines underground, so as to solve the problems proposed in the above background technique that it does not have a face mask or the face mask is fixed under the safety helmet, and it is not possible to select or disassemble the face mask according to the situation, and the practicability is not strong.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A safety helmet for use in coal mines underground includes a hat body and a face mask. The face mask is made of a transparent material. A connecting block is provided at the bottom of the hat body, and a connecting groove is provided at the top of the face mask. The connecting block and the connecting groove are adapted, and the connecting block is clamped inside the connecting groove. Clamping blocks are movably connected to the front and rear sides of the connecting block, clamping grooves are provided on the front and rear sides of the face mask, and the clamping grooves extend into the connecting groove. The clamping blocks are adapted to the clamping grooves, and the clamping blocks are clamped inside the clamping grooves.

[0006] Preferably, a groove is provided on each of the front and rear sides of the connecting block, a spring is provided inside the groove, one end of the spring is fixedly connected inside the groove, and the other end of the spring is fixedly connected to one side of the clamping block.

[0007] Preferably, a first connecting band is fixedly connected to the left side of the face mask, a second connecting band is fixedly connected to the right side of the face mask, and the number of both the first connecting band and the second connecting band is two and they are movably connected.

[0008] Preferably, a connecting buckle is fixedly connected to the left side of the first connecting band, a connecting hole is provided inside the second connecting band, the number of the connecting holes is several, and the connecting buckle is adapted to the connecting holes.

[0009] Preferably, sealing strips are provided at the inner corners of the face mask, and the sealing strips are made of rubber.

[0010] Preferably, an air inlet is provided on the front of the face mask, the air inlet extends into the face mask, and a cover body is provided outside the air inlet.

[0011] Preferably, an external thread is provided outside the air inlet, and an internal thread is provided inside the cover body, and the external thread is adapted to the internal thread.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By removing the face mask and clamping the connecting block at the bottom of the cap body into the connecting groove at the top of the face mask, and clamping the clamping block into the clamping groove, the face mask and the cap body can be assembled. When not in use, it can be disassembled, and it is possible to choose to use or disassemble the face mask according to the situation, which has strong practicability.

[0014] 2. By pressing the clamping block, the spring expands and contracts and enters the inside of the groove, separating the clamping block from the clamping groove and separating the connecting block from the connecting groove, which brings convenience to the disassembly work. By connecting the connecting buckle on the first connecting belt into the internal connecting hole of the suitable second connecting belt, the face mask is tightened to improve the adaptability of the face mask. By opening the cover body and introducing oxygen through the air inlet, it can be used in a mine with weak oxygen, enhancing its functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the split structure of the face mask and the cap body of the present utility model;

[0017] Figure 3 is a schematic diagram of the split structure of the clamping block and the clamping groove of the present utility model;

[0018] Figure 4 is a schematic diagram of the split structure of the cover body and the air inlet pipe of the present utility model.

[0019] In the figure: 1. Cap body; 2. Face mask; 3. Connecting block; 4. Connecting groove; 5. Clamping block; 6. Clamping groove; 7. Groove; 8. Spring; 9. First connecting belt; 10. Second connecting belt; 11. Connecting buckle; 12. Connecting hole; 13. Sealing strip; 14. Air inlet; 15. Cover body; 16. External thread; 17. Internal thread. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4, the present utility model provides a technical solution for a safety helmet used in coal mines: including a cap body 1 and a face mask 2. The face mask 2 is made of a transparent material. A connecting block 3 is provided at the bottom of the cap body 1, and a connecting groove 4 is provided at the top of the face mask 2. The connecting block 3 and the connecting groove 4 are adapted, and the connecting block 3 is snap-fitted inside the connecting groove 4. Clamping blocks 5 are movably connected to the front and rear sides of the connecting block 3, clamping grooves 6 are provided on the front and rear sides of the face mask 2, and the clamping grooves 6 extend into the connecting groove 4. The clamping blocks 5 are adapted to the clamping grooves 6, and the clamping blocks 5 are snap-fitted inside the clamping grooves 6.

[0022] Specifically, a groove 7 is provided on each of the front and rear sides of the connecting block 3, a spring 8 is provided inside the groove 7, one end of the spring 8 is fixedly connected inside the groove 7, and the other end of the spring 8 is fixedly connected to one side of the clamping block 5.

[0023] Specifically, a first connecting strap 9 is fixedly connected to the left side of the face mask 2, a second connecting strap 10 is fixedly connected to the right side of the face mask 2, and the number of the first connecting strap 9 and the second connecting strap 10 is two each and they are movably connected.

[0024] Specifically, a connecting buckle 11 is fixedly connected to the left side of the first connecting strap 9, a connecting hole 12 is provided inside the second connecting strap 10, the number of the connecting holes 12 is several, and the connecting buckle 11 is adapted to the connecting hole 12.

[0025] Specifically, sealing strips 13 are provided at the inner corners of the face mask 2, and the sealing strips 13 are made of rubber material.

[0026] Specifically, an air inlet 14 is provided on the front of the face mask 2, the air inlet 14 extends into the face mask 2, and a cover body 15 is provided outside the air inlet 14.

[0027] Specifically, an external thread 16 is provided outside the air inlet 14, an internal thread 17 is provided inside the cover body 15, and the external thread 16 is adapted to the internal thread 17.

[0028] In this implementation scheme, when the safety helmet needs to use the face mask 2, by taking out the face mask 2, snapping the connecting block 3 at the bottom of the cap body 1 into the connecting groove 4 at the top of the face mask 2, and snapping the clamping block 5 into the clamping groove 6, the face mask 1 and the cap body 2 can be assembled. When not in use, it can be disassembled. It can be selected to use or disassemble the face mask 2 according to the situation, and the practicability is relatively strong.

[0029] When disassembling the face mask 2, by pressing the clamping block 5, the spring 8 expands and contracts and enters into the groove 7, separating the clamping block 5 from the clamping groove 6 and separating the connecting block 3 from the connecting groove 4, which brings convenience to the disassembly work. By connecting the connecting buckle 11 on the first connecting strap 9 to the connecting hole 12 inside the appropriate second connecting strap 10, the face mask 2 is tightened to improve the adaptability of the face mask 2. By providing the sealing strip 13, the sealing effect during the use of the face mask 2 is improved. By opening the cover body 15 and introducing oxygen through the air inlet 14, it can be used in the underground mine with weak oxygen, enhancing its functionality.

[0030] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety helmet for use in underground coal mines, comprising a helmet body (1) and a mask (2), characterized in that: The mask (2) is made of a transparent material. A connecting block (3) is provided at the bottom of the cap body (1). A connecting groove (4) is provided at the top of the mask (2). The connecting block (3) and the connecting groove (4) are adapted to each other. The connecting block (3) is snapped into the interior of the connecting groove (4). A snapping block (5) is movably connected to the front and rear sides of the connecting block (3). A snapping groove (6) is provided at the front and rear sides of the mask (2). The snapping groove (6) extends into the interior of the connecting groove (4). The snapping block (5) and the snapping groove (6) are adapted to each other. The snapping block (5) is snapped into the interior of the snapping groove (6).

2. A safety helmet for underground coal mines according to claim 1, characterized in that: The connection block (3) is provided with a groove (7) on both the front and rear sides, and a spring (8) is provided inside the groove (7). One end of the spring (8) is fixedly connected inside the groove (7), and the other end of the spring (8) is fixedly connected to one side of the clamping block (5).

3. A safety helmet for underground coal mines according to claim 1, characterized in that: The left side of the mask (2) is fixedly connected to a first connecting belt (9), and the right side of the mask (2) is fixedly connected to a second connecting belt (10). The first connecting belt (9) and the second connecting belt (10) are both in two numbers and are movably connected.

4. A safety helmet for underground coal mines according to claim 3, characterized in that: A connecting buckle (11) is fixedly connected to the left side of the No. 1 connecting belt (9), and a connecting hole (12) is provided inside the No. 2 connecting belt (10). The connecting holes (12) are multiple in number, and the connecting buckle (11) and the connecting holes (12) are adapted to each other.

5. A safety helmet for underground coal mines according to claim 1, characterized in that: Sealing strips (13) are provided at the inner corners of the mask (2), and the sealing strips (13) are made of rubber.

6. A safety helmet for underground coal mines according to claim 1, characterized in that: An air inlet (14) is provided on the front of the mask (2), the air inlet (14) extends into the interior of the mask (2), and a cover body (15) is provided on the outside of the air inlet (14).

7. A safety helmet for underground coal mines according to claim 6, characterized in that: An external thread (16) is provided on the outside of the air inlet (14), and an internal thread (17) is provided on the inside of the cover body (15), wherein the external thread (16) is adapted to fit the internal thread (17).

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