Mining explosion-proof button protection device

Abstract

The utility model provides a mining explosion-proof button protection device, and relates to the technical field of mining electrical equipment safety protection, the mining explosion-proof button protection device comprises an explosion-proof button body, the front surface of the explosion-proof button body is provided with a button, one side of the front surface of the explosion-proof button body is fixedly provided with a support, and the support is rotatably provided with a movable frame through a rotating shaft on the support. According to the rigid protective cover, the inclined surface at the rear end of the clamping block is matched with the positioning groove, the clamping block is automatically guided to compress the first spring at the closed tail end, the protruding part of the first spring is finally clamped into the upper groove and the lower groove of the positioning groove, double-point self-locking in the closed state is achieved, and stable closing of the rigid protective cover body in the vibration environment is ensured. During unlocking, the clamping block can be driven to be separated from the groove only by synchronously pressing the two operation blocks, and unlocking is easy. The operation logic that locking is achieved when closing is conducted, and unlocking is achieved when keys are pressed is achieved, and the convenience and efficiency of opening and closing operation are greatly improved while the protection reliability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology for electrical equipment in mines, and more specifically, to a mine explosion-proof button protection device. Background Technology

[0002] Explosion-proof buttons for mining are key electrical control components used underground, and are widely used in the start-up and shutdown operations of mining, transportation, and ventilation equipment. Their working environment has the following significant characteristics: long-term exposure to high concentrations of coal dust, rock powder, and humid air; frequent exposure to mechanical impacts such as equipment vibration and material collisions; and being located in hazardous areas containing explosive gases such as methane and coal dust.

[0003] For example, the specification of the "Explosion-proof Button Protection Device for Mining" disclosed in Chinese Utility Model Patent (Publication No.: CN207264944U) states that: by setting a protective cover to protect the explosion-proof button, the explosion-proof button is prevented from being accidentally touched. The arc-shaped setting of the top wall of the protective cover increases the pressure resistance of the top wall. The setting of the pressure-resistant rod and the protrusion ensures that the explosion-proof button will not be triggered when the protective cover is deformed, further ensuring the reliability of the protection.

[0004] Regarding the aforementioned technologies, this device has some shortcomings. In actual use, the protective cover is automatically closed via a torsion spring, but the friction or preload of the torsion spring alone may be insufficient in complex vibration environments. There is a lack of a clear "locking" or "positioning" mechanism to ensure the stability of the protective cover in the two critical positions of "fully open" and "fully closed".

[0005] Therefore, we have made improvements to this and proposed a mine explosion-proof button protection device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a mine explosion-proof button protection device, which solves the problems mentioned in the background.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A mine explosion-proof button protection device includes an explosion-proof button body, a button is provided on the front of the explosion-proof button body, a support is fixedly installed on one side of the front of the explosion-proof button body, a movable frame is rotatably installed on the support through a rotating shaft thereon, a rigid protective cover is fixedly installed on one side of the movable frame, and a positioning component is provided on one side of the rigid protective cover.

[0009] The positioning component includes a vertical rail fixedly installed on one side of the rigid protective cover. A slide rod is fixedly installed inside the vertical rail. Symmetrically distributed locking blocks are sleeved on the outer wall of the slide rod. An operating block is fixedly installed at the front end of each of the two locking blocks. A first spring is sleeved on the outer wall of the slide rod between the two locking blocks. A positioning groove is opened on the other side of the front of the explosion-proof button body. The positioning groove engages with the locking block. A limit component is provided on the top of the movable frame.

[0010] As a preferred technical solution of this application, the limiting component includes a slide groove opened on the top of the movable frame, a slider is slidably installed on the slide groove, a limiting post is rotatably installed on the top of the slider, the limiting post is in rolling contact with the outer surface of the support, a second spring is fixedly installed inside the slide groove, a limiting groove is opened on the upper side of the outer surface of the support, and the limiting groove is elastically engaged with the limiting post.

[0011] As a preferred technical solution of this application, the front of the rigid protective cover is provided with a visualization window.

[0012] As a preferred technical solution of this application, a sealing gasket is provided at the connection between the back of the rigid protective cover and the front of the explosion-proof button body.

[0013] As a preferred technical solution of this application, the card block is provided with a sliding hole adapted to the slide rod, and the card block is slidably connected to the slide rod through the sliding hole.

[0014] As a preferred technical solution of this application, the rear end of the card block is provided with an inclined protrusion, and the top and bottom of the inner wall of the positioning groove are provided with grooves that are adapted to the rear end protrusion of the card block.

[0015] As a preferred technical solution of this application, the rigid protective cover is made of high-strength engineering plastic or stainless steel.

[0016] As a preferred technical solution of this application, the outer surface of the operating block is provided with anti-slip grooves.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the scheme of this application:

[0019] 1. Through the coordinated use of the explosion-proof button body, support, rigid protective cover, movable frame, positioning component, button, positioning groove, operating block, locking block, first spring, vertical rail, and slide rod, the inclined surface at the rear end of the locking block engages with the positioning groove. At the closed end, the locking block automatically compresses the first spring, ultimately causing its protrusion to engage with the upper and lower grooves of the positioning groove, achieving double-point self-locking in the closed state and ensuring the stable closure of the rigid protective cover in a vibration environment. To open, simply press both operating blocks simultaneously to drive the locking block out of the groove, easily unlocking it. This implements the operating logic of "locking upon closure and unlocking upon pressing a button," greatly improving the convenience and efficiency of opening and closing operations while ensuring the reliability of protection.

[0020] 2. Through the coordinated use of the limiting groove, limiting post, slider, slide, second spring, and limiting assembly, the second spring drives the limiting post to automatically engage with the limiting groove when the rigid protective cover is unfolded to a set angle. This achieves stable positioning of the rigid protective cover in its fully open state, effectively preventing it from shaking during operation and ensuring safe and precise operation. When closing, only a small force is required to disengage the limiting post, balancing locking reliability with smooth opening and closing operations, thus improving the overall efficiency of the device. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of a mine explosion-proof button protection device provided in this application;

[0022] Figure 2 A schematic diagram of the rigid protective cover in the deployed state of a mine explosion-proof button protection device provided in this application;

[0023] Figure 3 A schematic diagram of the positioning component in a mine explosion-proof button protection device provided in this application;

[0024] Figure 4 A schematic diagram of the limit component in a mine explosion-proof button protection device provided in this application;

[0025] Figure 5 This is a cross-sectional structural diagram of the explosion-proof button body in a mining explosion-proof button protection device provided in this application.

[0026] The image shows:

[0027] 1. Explosion-proof button body; 2. Support; 3. Rigid protective cover; 4. Movable frame; 5. Visual window; 6. Positioning component; 7. Button; 8. Positioning groove; 9. Operating block; 10. Locking block; 11. First spring; 12. Vertical rail; 13. Slide rod; 14. Limiting groove; 15. Limiting post; 16. Slider; 17. Slide groove; 18. Second spring; 19. Limiting component. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] Example 1

[0033] Please refer to Figures 1-5 A mine explosion-proof button protection device includes an explosion-proof button body 1, a button 7 is provided on the front of the explosion-proof button body 1, a support 2 is fixedly installed on one side of the front of the explosion-proof button body 1, a movable frame 4 is rotatably installed on the support 2 through a rotating shaft, a rigid protective cover 3 is fixedly installed on one side of the movable frame 4, and a positioning component 6 is provided on one side of the rigid protective cover 3.

[0034] The positioning component 6 includes a vertical rail 12 fixedly installed on one side of the rigid protective cover 3. A slide rod 13 is fixedly installed inside the vertical rail 12. A symmetrically distributed locking block 10 is sleeved on the outer wall of the slide rod 13. An operating block 9 is fixedly installed at the front end of each of the two locking blocks 10. A first spring 11 is sleeved on the outer wall of the slide rod 13 between the two locking blocks 10. A positioning groove 8 is opened on the other side of the front of the explosion-proof button body 1. The positioning groove 8 is engaged with the locking block 10. A limit component 19 is provided on the top of the movable frame 4.

[0035] Furthermore, a visualization window 5 is provided on the front of the rigid protective cover 3. This allows operators to directly observe the status indication or label of the explosion-proof button 7 without opening the rigid protective cover 3, improving operational intuitiveness and inspection efficiency.

[0036] Furthermore, a sealing gasket is provided at the connection between the back of the rigid protective cover 3 and the front of the explosion-proof button body 1. This effectively prevents dust, moisture, and other contaminants from entering through the seams, improving the overall sealing performance of the rigid protective cover 3 when closed.

[0037] Furthermore, the locking block 10 has a sliding hole that matches the slide rod 13, and the locking block 10 is slidably connected to the slide rod 13 through the sliding hole. This ensures that the linear motion of the locking block 10 on the slide rod 13 is precise, smooth, and without wobbling, providing a stable motion path for the compression and reset of the first spring 11.

[0038] Furthermore, the rear end of the locking block 10 is provided with an inclined protrusion, and the top and bottom of the inner wall of the positioning groove 8 are provided with grooves that match the rear end protrusion of the locking block 10. This achieves automatic guidance and locking during the closing process, as well as bidirectional force stability in the locked state, ensuring that the rigid protective cover 3 is locked efficiently and firmly when closed, and the unlocking operation is direct and clear.

[0039] Furthermore, the rigid protective cover 3 is made of high-strength engineering plastics or stainless steel. This significantly improves its impact resistance, corrosion resistance, and overall structural strength, ensuring durable and reliable protection under harsh conditions while also meeting the requirements of lightweight and durability.

[0040] Furthermore, anti-slip grooves are provided on the outer surface of the operating block 9. This effectively increases frictional resistance and prevents hand slippage when operating in wet, oily, or gloved conditions, thus improving the reliability and safety of operation.

[0041] Example 2

[0042] The explosion-proof button protection device for mining provided in Embodiment 1 is further optimized. Specifically, the limiting component 19 includes a slide groove 17 opened on the top of the movable frame 4. A slider 16 is slidably installed on the slide groove 17. A limiting post 15 is rotatably installed on the top of the slider 16. The limiting post 15 rolls in contact with the outer surface of the support 2. A second spring 18 is fixedly installed inside the slide groove 17. A limiting groove 14 is opened on the upper side of the outer surface of the support 2. The limiting groove 14 is elastically engaged with the limiting post 15.

[0043] The usage process of the explosion-proof button protection device for mining provided by this utility model is as follows:

[0044] When in use, if the button 7 on the explosion-proof button body 1 is not operated, the rigid protective cover 3 must be closed to the front of the explosion-proof button body 1 for sealed protection. The rigid protective cover 3 is rotated to close by means of the hinge relationship between the movable frame 4 and the support 2. At the end of the closing stage, the rear ends of the two locking blocks 10 on the positioning component 6 are first inserted into the positioning groove 8. As the closing action continues, the positioning groove 8 contacts and applies force along the inclined surface of the rear end of the locking blocks 10, pushing the two locking blocks 10 to slide relative to each other on the outer wall of the slide rod 13 and compress the first spring 11 until the rigid protective cover 3 is completely and tightly closed to the front of the explosion-proof button body 1. At this time, under the elastic reset action of the first spring 11, the protrusion at the rear end of the locking block 10 automatically engages with the corresponding grooves at the top and bottom of the inner wall of the positioning groove 8, realizing double-point locking, thereby ensuring the structural stability and vibration resistance reliability of the rigid protective cover 3 in the closed state. When button 7 needs to be operated, the two operating blocks 9 can be pressed simultaneously to drive the locking block 10 to move relative to each other, causing its protrusion to disengage from the groove of the positioning slot 8. Then, the rigid protective cover 3 can be flipped outward to completely remove the locking block 10 from the positioning slot 8, thus completing the opening action.

[0045] During the opening of the rigid protective cover 3 to operate button 7, as the rigid protective cover 3 rotates and unfolds around the hinge axis, the movable frame 4 synchronously drives the limiting component 19 to shift, causing the limiting post 15 on the limiting component 19 to roll and contact the outer wall of the support 2. When the rigid protective cover 3 unfolds to the set angle, under the elastic reset action of the second spring 18, the drive slider 16 drives the limiting post 15 to quickly engage inside the limiting groove 14, achieving reliable angle locking of the fully open state of the rigid protective cover 3, effectively preventing the impact of protective cover swaying on operational accuracy and personnel operations. This locking mechanism relies on the elastic force of the second spring 18 for maintenance. In subsequent closing operations, only a small torque needs to be applied to make the limiting post 15 overcome the spring force and disengage from the limiting groove 14, thereby ensuring the smoothness and efficiency of the opening and closing process of the rigid protective cover 3.

[0046] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A flameproof push button guard for mining applications, characterized by, The application relates to an explosion-proof button body (1), the front surface of the explosion-proof button body (1) is provided with a button (7), one side of the front surface of the explosion-proof button body (1) is fixedly provided with a support (2), the support (2) is rotatably provided with a movable frame (4) through a rotating shaft on the support (2), one side of the movable frame (4) is fixedly provided with a rigid protective cover body (3), and one side of the rigid protective cover body (3) is provided with a positioning assembly (6). The positioning assembly (6) comprises a vertical rail (12) fixedly arranged on one side of the rigid protective cover body (3), a sliding rod (13) fixedly arranged in the vertical rail (12), symmetrically-distributed clamping blocks (10) sleeved on the outer wall of the sliding rod (13), operation blocks (9) fixedly arranged at the front ends of the two clamping blocks (10), a first spring (11) sleeved on the outer wall of the sliding rod (13) and located between the two clamping blocks (10), a positioning groove (8) formed in the other side of the front surface of the explosion-proof button body (1), and the positioning groove (8) is in clamping connection with the clamping blocks (10). The top of the movable frame (4) is provided with a limiting assembly (19).

2. A flameproof push button guard for use in a mine as defined in claim 1, wherein, The limiting assembly (19) comprises a sliding groove (17) formed in the top of the movable frame (4), a sliding block (16) slidably arranged on the sliding groove (17), a limiting column (15) rotatably arranged on the top of the sliding block (16), the limiting column (15) in rolling contact with the outer surface of the support (2), a second spring (18) fixedly arranged in the sliding groove (17), and a limiting groove (14) formed in the upper side of the outer surface of the support (2) and in elastic clamping connection with the limiting column (15).

3. A flameproof push button guard for use in a mine as defined in claim 1, wherein: The front surface of the rigid protective cover body (3) is provided with a visual window (5).

4. A flameproof push button guard for use in a mine as defined in claim 1, wherein: The back surface of the rigid protective cover body (3) is provided with a sealing gasket at the connecting position with the front surface of the explosion-proof button body (1).

5. A flameproof push button guard for use in a mine as defined in claim 1, wherein, A sliding hole matched with the sliding rod (13) is formed in the clamping block (10), and the clamping block (10) is in sliding connection with the sliding rod (13) through the sliding hole.

6. A flameproof push button guard for use in a mine as defined in claim 1, wherein, The rear end of the clamping block (10) is provided with an inclined protrusion, and grooves matched with the protrusion of the rear end of the clamping block (10) are formed in the top and the bottom of the inner wall of the positioning groove (8).

7. A flameproof push button guard for use in a mine as defined in claim 1, wherein: The rigid protective cover body (3) is made of high-strength engineering plastic or stainless steel.

8. A flameproof push button guard for use in a mine as defined in claim 1, wherein: Anti-skid grooves are formed on the outer surface of the operation block (9).

Images