Coal mine protective mask capable of preventing sight line from being blocked

Abstract

The utility model relates to the technical field of coal mine individual protection, and discloses a coal mine protective mask capable of preventing sight blocking, which comprises a mask main body and an air filter pipe fixedly arranged on the mask main body in a penetrating manner, an observation window is arranged on the outer wall of the mask main body, and a transparent plate is fixedly arranged in the observation window. The inner wall of the observation window is fixedly provided with an anti-blocking assembly, the anti-blocking assembly is arranged on the outer side of the transparent plate, and the two sides of the outer wall of the mask body are jointly and fixedly connected with a connecting assembly. By means of the anti-blocking assembly, a worker can pull the mounting base downwards through the shifting plate, so that the mounting base drives the cleaning pad to clean the outer surface of the transparent plate, the sight of the worker is prevented from being blocked, and by means of the connecting assembly, operation is convenient when the mask body is worn and detached.

Description

Technical Field

[0001] The utility model relates to the technical field of individual protection in coal mines, in particular to a coal mine protective mask for preventing vision from being obstructed. Background Art

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, it is generally chosen to dig tunnels underground to mine coal. In order to ensure the health of workers, they usually need to wear protective masks during operations.

[0003] For example, the patent with publication number CN211068815U: A dust and fog protection mask for coal mines, including a dust mask, dust glasses and a centrifugal fan, a small air curtain device is installed on the dust glasses; the dust mask is provided with a mask air inlet and a mask exhaust port, the mask air inlet is connected to the exhaust port of the centrifugal fan through the mask air inlet duct; the small air curtain device is provided with an air curtain air inlet and an air curtain slit, the air curtain air inlet is connected to the exhaust port of the centrifugal fan through the air curtain air inlet duct; a dust filter is provided at the air inlet of the centrifugal fan. The utility model of the dust and fog protection mask for coal mines is suitable for coal mine grouting and drilling operation environments with dust, high labor intensity and rock splashing. The mask is simple in design and has a wide protection range, which can effectively ensure the physical and mental health of underground workers.

[0004] The above patent points out that there are still some shortcomings, such as: during coal mining, there are many dust particles in the mine tunnel, and the fallen coal particles can easily cause a black coating on the transparent plate of the mask, affecting the vision of the workers; the mask body is usually fixed to the head by an elastic strap, and when putting on or taking off the mask, the elastic strap needs to be stretched or pulled, which is inconvenient to operate.

[0005] Therefore we have proposed a coal mine protective mask that prevents obstruction of vision, so as to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a coal mine protective mask for preventing obstructed vision, so as to solve the problem proposed in the above-mentioned background technology that during coal mining, there are many dust particles in the mine tunnel, and the fallen coal particles are easy to cause the transparent plate of the mask to be covered with a black coating, affecting the vision of the workers; the mask body is usually fixed to the head by an elastic strap, and when putting on or taking off the mask, the elastic strap needs to be stretched or pulled, which is inconvenient to operate.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mine protective mask for preventing obstruction of vision, comprising a mask body and an air filter tube that passes through and is fixedly arranged on the mask body, an observation window is opened on the outer wall of the mask body, a transparent plate is fixedly installed inside the observation window, an anti-obstruction component is fixedly installed on the inner wall of the observation window, the anti-obstruction component is arranged on the outside of the transparent plate, and connecting components are fixedly connected to both sides of the outer wall of the mask body.

[0008] Preferably, the anti-obstruction component includes guide rods symmetrically fixedly connected to the inner wall of the observation window, each of the guide rods is slidably connected to a sliding rod on the side wall, and a mounting seat is commonly fixedly connected to the side walls of the two sliding rods, a cleaning pad is fixedly connected to the outer wall of the mounting seat on a side close to the mask body, and a plurality of lighting lamps are fixedly installed on the outer wall of the mounting seat on a side away from the mask body.

[0009] Preferably, the bottom surface of the slide rod is elastically connected to the inner bottom wall of the observation window via two first springs, and the two guide rods respectively penetrate the inner circles of the two first springs, and a shift plate is fixedly connected to the bottom surface of the mounting seat.

[0010] Preferably, the connecting assembly includes a first connecting block fixedly connected to one side of the outer wall of the mask body and a second connecting block fixedly connected to the other side of the outer wall of the mask body, two elastic straps are fixedly connected to the side wall of the first connecting block, and one end of the two elastic straps away from the first connecting block is fixedly connected to an insert block.

[0011] Preferably, a groove is provided on the bottom surface of the insert block, a limiting column is slidably connected inside the groove, and the limiting column is elastically connected to the inner cavity side wall of the groove via a second spring.

[0012] Preferably, a slot is provided on the side wall of the second connecting block, a limiting slot is provided on the bottom surface of the inner cavity of the slot, a reset column is slidably connected to the bottom surface of the inner cavity of the limiting slot, and one end of the reset column located outside the second connecting block is fixedly connected to a push plate, the top wall of the push plate and the bottom wall of the second connecting block are elastically connected by a third spring, and the reset column passes through the inner circle of the third spring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the anti-obstruction component, the staff can pull the mounting seat downward through the dial plate, so that it drives the cleaning pad to clean the outer surface of the transparent plate to prevent the staff's vision from being blocked.

[0015] 2. Through the connection assembly that is set up, when putting on the mask body, the plug block is inserted into the slot opened on the side wall of the second connection block. When it continues to be pushed to the position of the limit slot, under the elastic force of the second spring, the limit column bounces into the limit slot to complete the fixation. When it needs to be removed, the staff only needs to push the push plate upward so that the reset column pushes the limit column out to remove the protective mask. The operation is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the connection component part in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the first connecting block, the elastic binding band and the inserting block in the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the second connecting block in the utility model;

[0020] Figure 5 It is an enlarged schematic diagram of the structure of part A in the utility model;

[0021] Figure 6 It is an enlarged schematic diagram of the structure of part B in the utility model.

[0022] In the figure: 1. mask body; 2. air filter tube; 3. observation window; 4. transparent plate; 5. anti-obstruction component; 51. guide rod; 52. slide rod; 53. mounting seat; 54. cleaning pad; 55. lighting lamp; 56. first spring; 57. dial plate; 6. connecting component; 61. first connecting block; 62. second connecting block; 621. slot; 622. limit groove; 623. reset column; 63. elastic strap; 64. plug block; 641. groove; 642. limit column; 643. second spring; 624. push plate; 625. third spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-Figure 2A coal mine protective mask for preventing obstructed vision includes a mask body 1 and an air filter tube 2 that passes through and is fixedly arranged on the mask body 1. An observation window 3 is opened on the outer wall of the mask body 1, and a transparent plate 4 is fixedly installed inside the observation window 3. An anti-obstruction component 5 is fixedly installed on the inner wall of the observation window 3. The anti-obstruction component 5 is arranged on the outer side of the transparent plate 4, and a connecting component 6 is fixedly connected to both sides of the outer wall of the mask body 1.

[0025] The anti-obstruction component 5 includes a guide rod 51 symmetrically fixedly connected to the inner wall of the observation window 3, and each guide rod 51 is slidably connected to a slide rod 52 on the side wall, and a mounting seat 53 is fixedly connected to the side walls of the two slide rods 52. A cleaning pad 54 is fixedly connected to the outer wall of the mounting seat 53 on the side close to the mask body 1, and a plurality of lighting lamps 55 are fixedly installed on the outer wall of the mounting seat 53 on the side away from the mask body 1, so as to illuminate the working environment, provide a certain brightness of vision, and prevent the staff's line of sight from being obstructed within a certain range.

[0026] The bottom surface of the slide rod 52 is elastically connected to the inner bottom wall of the observation window 3 via two first springs 56 , and the two guide rods 51 respectively penetrate the inner circles of the two first springs 56 . A shift plate 57 is fixedly connected to the bottom surface of the mounting seat 53 .

[0027] In this embodiment: when the coating on the transparent plate 4 blocks the staff's line of sight, the staff can pull the mounting seat 53 downward through the dial plate 57, so that it drives the cleaning pad 54 to clean the outer surface of the transparent plate 4 to prevent the staff's line of sight from being blocked. During the pulling process, the mounting seat 53 drives the sliding rods 52 on both sides to slide downward along the guide rod 51 and compress the first spring 56. When the cleaning is completed, the staff only needs to release the dial plate 57, and the anti-obstruction component 5 can be reset under the elastic force of the first spring 56.

[0028] Embodiment 2: This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 3-Figure 6 The connecting assembly 6 includes a first connecting block 61 fixedly connected to one side of the outer wall of the mask body 1 and a second connecting block 62 fixedly connected to the other side of the outer wall of the mask body 1. Two elastic straps 63 are fixedly connected to the side wall of the first connecting block 61, and an insert block 64 is fixedly connected to one end of the two elastic straps 63 away from the first connecting block 61.

[0029] A groove 641 is formed on the bottom surface of the insert block 64 , and a limiting post 642 is slidably connected inside the groove 641 . The limiting post 642 is elastically connected to the inner cavity side wall of the groove 641 via a second spring 643 .

[0030] A slot 621 is provided on the side wall of the second connecting block 62, a limiting slot 622 is provided on the bottom surface of the inner cavity of the slot 621, a reset column 623 is slidably connected to the bottom surface of the inner cavity of the limiting slot 622, and one end of the reset column 623 located outside the second connecting block 62 is fixedly connected to a push plate 624, the top wall of the push plate 624 and the bottom wall of the second connecting block 62 are elastically connected by a third spring 625, and the reset column 623 passes through the inner circle of the third spring 625.

[0031] In this embodiment: when the mask body 1 is put on, the plug block 64 is inserted into the slot 621 opened on the side wall of the second connecting block 62. During this process, the limiting column 642 on the bottom surface of the plug block 64 slides against the bottom wall of the inner cavity of the slot 621. When it continues to be pushed to the position of the limiting groove 622, under the elastic force of the second spring 643, the limiting column 642 bounces into the limiting groove 622 to complete the fixation. When it needs to be removed, the staff only needs to push the push plate 624 upward so that the reset column 623 pushes out the limiting column 642 to remove the protective mask.

[0032] Working principle: During installation, the plug block 64 is inserted into the slot 621 opened on the side wall of the second connecting block 62, and continues to push it inward. When sliding to the limit groove 622, the limit column 642 is ejected into the limit groove 622 under the elastic force of the second spring 643 to complete the fixation; during use, by pulling the dial plate 57, the mounting seat 53 and the slide bar 52 can be driven to move downward along the guide rod 51, thereby driving the cleaning pad 54 fixedly connected to the side wall of the mounting seat 53 to move downward to clean the surface of the transparent plate 4. During the downward movement, the slide bar 52 compresses the first spring 56. After releasing the dial plate 57, the anti-resistance component 5 is reset under the elastic force of the first spring 56; when it needs to be removed, by pushing the push plate 624 upward, the reset column 623 pushes the limit column 642 out of the limit groove 622. At this time, the plug block 64 can be taken out of the slot 621 to loosen the elastic strap 63.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coal mine protective mask for preventing vision obstruction, comprising a mask body (1) and an air filter tube (2) penetrating and fixedly arranged on the mask body (1), characterized in that: An observation window (3) is provided on the outer wall of the mask body (1), a transparent plate (4) is fixedly mounted inside the observation window (3), an anti-blocking component (5) is fixedly mounted on the inner wall of the observation window (3), the anti-blocking component (5) is arranged on the outer side of the transparent plate (4), and a connecting component (6) is fixedly connected to both sides of the outer wall of the mask body (1).

2. A coal mine protective mask for preventing obstructed vision according to claim 1, characterized in that: The anti-obstruction component (5) comprises guide rods (51) symmetrically fixedly connected to the inner wall of the observation window (3), each of the guide rods (51) is slidably connected to a slide rod (52) on the side wall, and a mounting seat (53) is fixedly connected to the side walls of the two slide rods (52), a cleaning pad (54) is fixedly connected to the outer wall of the mounting seat (53) on the side close to the mask body (1), and a plurality of lighting lamps (55) are fixedly mounted on the outer wall of the mounting seat (53) on the side away from the mask body (1).

3. A coal mine protective mask for preventing obstructed vision according to claim 2, characterized in that: The bottom surface of the slide rod (52) is elastically connected to the inner bottom wall of the observation window (3) via two first springs (56), and the two guide rods (51) respectively penetrate the inner circles of the two first springs (56). A shift plate (57) is fixedly connected to the bottom surface of the mounting seat (53).

4. A coal mine protective mask for preventing obstructed vision according to claim 1, characterized in that: The connecting assembly (6) comprises a first connecting block (61) fixedly connected to one side of the outer wall of the mask body (1) and a second connecting block (62) fixedly connected to the other side of the outer wall of the mask body (1), two elastic straps (63) being fixedly connected to the side wall of the first connecting block (61), and an insert block (64) being fixedly connected to one end of the two elastic straps (63) away from the first connecting block (61).

5. A coal mine protective mask for preventing obstructed vision according to claim 4, characterized in that: A groove (641) is provided on the bottom surface of the insert block (64), a limiting column (642) is slidably connected inside the groove (641), and the limiting column (642) is elastically connected to the inner cavity side wall of the groove (641) via a second spring (643).

6. A coal mine protective mask for preventing obstructed vision according to claim 4, characterized in that: A slot (621) is provided on the side wall of the second connecting block (62), a limiting slot (622) is provided on the bottom surface of the inner cavity of the slot (621), a reset column (623) is slidably connected to the bottom surface of the inner cavity of the limiting slot (622), one end of the reset column (623) located outside the second connecting block (62) is fixedly connected to a push plate (624), the top wall of the push plate (624) and the bottom wall of the second connecting block (62) are elastically connected via a third spring (625), and the reset column (623) passes through the inner circle of the third spring (625).

Images