A smart detection device for mine compressed oxygen self-rescue devices

Abstract

This utility model discloses an intelligent detection device for a mine compressed oxygen self-rescue device, belonging to the technical field of intelligent calibration instruments for compressed oxygen self-rescue devices. It includes a housing and a cover hinged together by a rotating shaft perpendicular to the ground. The main body of the intelligent calibration instrument for the compressed oxygen self-rescue device is installed inside the housing. Mounting grooves are provided on opposite sides of the housing and the cover. A first arc-shaped fixing frame and a second arc-shaped fixing frame are fixedly connected to the inner sides of the two mounting grooves, respectively. A single arc-shaped telescopic frame is slidably and lockably fitted onto the outer sides of the first and second arc-shaped fixing frames. In this utility model, the comb-like interlocking of the first and second arc-shaped fixing frames, combined with the double-set elastic steel ball protrusion structure of the arc-shaped telescopic frame for locking, forms a stable triangular support after unfolding, effectively resisting underground vibrations and horizontal swaying of the cover. Furthermore, when locked, the arc-shaped telescopic frame automatically centers, ensuring uniform illumination coverage of the lighting lamp on it.

Description

Technical Field

[0001] This utility model belongs to the technical field of intelligent calibration instrument for compressed oxygen self-rescue devices, and particularly relates to an intelligent detection device for a mine compressed oxygen self-rescue device. Background Technology

[0002] Compressed oxygen self-rescue devices are core escape equipment for miners in hazardous working environments such as underground coal mines. The reliability of key parameters such as airtightness, oxygen supply pressure, and breathing resistance directly affects personnel safety. Therefore, they need to be regularly and accurately tested using intelligent calibrators to ensure that the equipment meets relevant safety standards. With the increasing safety requirements in the mining industry, traditional manual testing methods are no longer sufficient to meet the demand for efficient calibration due to their complexity, high labor intensity, and reliance on human experience for accuracy. Intelligent and automated testing equipment has become the industry trend. Although existing intelligent calibrators can automatically collect and analyze parameters, they still have significant shortcomings in practical underground applications: some devices lack dedicated stable support structures, and when placed vertically, they are easily tilted by vibration or external forces, leading to testing interruptions or inaccurate results.

[0003] In the existing technology, a triangular support is formed by a combination of a first hinge rod, a second hinge rod, and a fixing pin to improve the stability of the box and the box cover when they are opened vertically. In this method, the support components are scattered and rely on manual insertion and removal of the fixing pin to lock them, which not only makes it easy for parts to be lost, but also increases the operational load of downhole operations. At the same time, the triangular support structure does not integrate lighting equipment suitable for the dim downhole environment, requiring additional lighting tools to be carried, which greatly reduces the convenience of inspection operations. Summary of the Invention

[0004] The purpose of this invention is to propose an intelligent detection device for a mine compressed oxygen self-rescue device, in order to solve the problem that in traditional technology, the supporting components are scattered and rely on manual insertion and removal of fixing pins to complete the locking, which not only easily leads to the loss of parts, but also increases the operational load of underground operations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A smart detection device for a mine compressed oxygen self-rescue device includes a box and a box cover hinged by a rotating shaft perpendicular to the ground. The main body of the intelligent calibrator for the compressed oxygen self-rescue device is installed inside the box. The box and the box cover are provided with mounting grooves on opposite sides. A first arc-shaped fixing frame and a second arc-shaped fixing frame are fixedly connected to the inner sides of the two mounting grooves respectively. The same arc-shaped telescopic frame is slidably and lockably fitted onto the outer sides of the first arc-shaped fixing frame and the second arc-shaped fixing frame. A mounting base is fixedly connected to the middle of the arc-shaped telescopic frame, and a lighting lamp is installed on the mounting base. When the arc-shaped telescopic frame is locked, it is located in the middle position of the box body and the box cover, and the three form a stable triangular support.

[0006] Preferably, an inner lining layer is fixed to the inside of the box cover, and multiple storage slots are provided on the inner lining layer for placing testing tools.

[0007] Preferably, the opposite ends of the first arc-shaped fixing frame and the second arc-shaped fixing frame are both comb-tooth structures, and the two are coaxially and alternately slidably connected.

[0008] Preferably, a set of elastic snap-fit ​​locking mechanisms is installed on the inner sides of both ends of the arc-shaped telescopic frame, and locking holes that engage with the output end of the elastic snap-fit ​​locking mechanism are opened on the inner sides of the first arc-shaped fixed frame and the second arc-shaped fixed frame.

[0009] Preferably, a normally closed push-button switch is installed inside one of the mounting slots. The normally closed push-button switch is electrically connected to the lighting lamp. A trigger block is installed at one end of the arc-shaped telescopic frame to cooperate with the normally closed push-button switch. When the box cover is closed, the trigger block presses the normally closed push-button switch to disconnect the circuit. When the box cover is opened, it disengages from the normally closed push-button switch to connect the circuit, so that the lighting lamp turns on automatically.

[0010] Preferably, the inner lining layer has a placement groove, and a cleaning brush is placed inside the placement groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, the first arc-shaped fixing frame and the second arc-shaped fixing frame are engaged by a comb-like interlocking mechanism, and the arc-shaped telescopic frame is locked by a double set of elastic steel ball protrusion structure. After unfolding, a stable triangular support is formed, which effectively resists the vibration in the well and the horizontal shaking of the box cover. When locked, the arc-shaped telescopic frame is automatically centered, ensuring that the lighting coverage of the lighting lamp on it is uniform.

[0012] 2. In this utility model, the main body of the intelligent calibrator for the self-rescue device of compressed oxygen reuse lamp is powered by a built-in rechargeable lithium battery, which does not require an additional power supply. Through the linkage of the normally closed push switch and the trigger block, the opening and closing of the box cover is automatically started and stopped. The light of the lamp accurately covers the testing station and the storage slot, so there is no need to carry additional lighting tools. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an intelligent detection device for a mine compressed oxygen self-rescue device proposed in this utility model. Figure 2 This is a horizontal sectional view of the housing and cover of an intelligent detection device for a mine compressed oxygen self-rescue device proposed in this utility model. Figure 3 This is a partial cross-sectional view of the arc-shaped telescopic frame of an intelligent detection device for a mine compressed oxygen self-rescue device proposed in this utility model.

[0014] In the diagram: 1. Box body; 2. Main body of intelligent calibrator for compressed oxygen self-rescue device; 3. Box cover; 4. Inner lining; 5. Storage slot; 6. Mounting slot; 7. First arc-shaped fixing frame; 8. Second arc-shaped fixing frame; 9. Arc-shaped telescopic frame; 10. Elastic snap-fit ​​locking mechanism; 11. Locking hole; 12. Mounting base; 13. Lighting lamp; 14. Normally closed push switch; 15. Trigger block; 16. Placement slot; 17. Cleaning brush. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-3 A smart detection device for a mine-use compressed oxygen self-rescue device includes a box 1 and a box cover 3 hinged together by a rotating shaft perpendicular to the ground. The main body 2 of the smart calibrator for the compressed oxygen self-rescue device is installed inside the box 1.

[0017] The case 1 stands upright on the ground, and the lid 3 can be opened and closed horizontally around the rotating axis. A handle is installed on the top of the case 1 for easy carrying.

[0018] The main body 2 of the intelligent calibrator for compressed oxygen self-rescue devices is the core testing component, which is fixed in the middle of the inner side of the housing 1 to ensure stability and prevent shaking during the testing process.

[0019] The main body 2 of the intelligent calibrator for compressed oxygen self-rescue devices utilizes existing mature technology and typically includes a main control circuit board, pressure sensor, flow sensor, data display screen, and operation buttons, with some components integrating a printing module. Its core function is to intelligently detect, collect, and analyze key parameters of the compressed oxygen self-rescue device, such as airtightness, oxygen cylinder pressure, oxygen supply flow rate, and exhalation resistance. It can automatically determine whether the self-rescue device is qualified and display the test results on the screen. It also supports the storage and export of test data, adapting to the periodic calibration needs of self-rescue devices in coal mines. The main body 2 of the intelligent calibrator for compressed oxygen self-rescue devices has a built-in rechargeable lithium battery to meet the requirements of long-term underground testing. A charging interface is located on the outside of the housing 1, allowing simultaneous charging of the built-in rechargeable lithium battery.

[0020] An inner lining layer 4 is fixed inside the lid 3. Multiple storage slots 5 are provided on the inner lining layer 4 for placing testing tools.

[0021] Multiple storage slots are designed to be partitioned according to the shape and size of the testing tools, making it less likely for the tools to shift after being placed inside.

[0022] The box body 1 and the box cover 3 are provided with mounting grooves 6 on opposite sides. The first arc-shaped fixing frame 7 and the second arc-shaped fixing frame 8 are fixedly connected to the inner side of the two mounting grooves 6 respectively. The same arc-shaped telescopic frame 9 is slidably and lockably connected to the outer side of the first arc-shaped fixing frame 7 and the second arc-shaped fixing frame 8.

[0023] The mounting slot 6 is located at the top of the adjacent sides of the box body 1 and the box cover 3. Its size is adapted to the volume of the first arc-shaped fixing frame 7 and the second arc-shaped fixing frame 8, so that it can be stored inside the mounting slot 6 when the box body 1 and the box cover 3 are closed.

[0024] The arc-shaped telescopic frame 9 has a hollow arc structure, and its inner diameter is adapted to the outer diameter of the two fixed frames. It can slide smoothly along the outside of the fixed frames to realize the overall telescopic function.

[0025] Both the first arc-shaped fixing frame 7 and the second arc-shaped fixing frame 8 have a comb-tooth structure at their opposite ends, and the two are coaxially and alternately slidably connected.

[0026] The comb-like structure increases the contact area between the two fixed frames when they slide relative to each other, thus enhancing the stability of the two fixed frames and the arc-shaped telescopic frame 9 after elongation.

[0027] Both ends of the arc-shaped telescopic frame 9 are equipped with a set of elastic snap-fit ​​locking mechanisms 10. The inner sides of the first arc-shaped fixed frame 7 and the second arc-shaped fixed frame 8 are provided with locking holes 11 that engage with the output end of the elastic snap-fit ​​locking mechanism 10.

[0028] The elastic snap-locking mechanism 10 is a mature existing elastic steel ball protrusion structure. The elastic force of the two mechanisms is consistent, and locking can be achieved through the snap-locking cooperation between the steel ball and the locking hole 11.

[0029] The elastic steel ball protrusion structure mainly consists of a mounting hole, a steel ball, a compression spring, and a threaded plug. The compression spring is placed in the mounting hole, with one end abutting against the steel ball and the other end abutting against the threaded plug. In its natural state, the steel ball is partially exposed by the compression spring. When the steel ball slides to the locking hole 11, it is embedded in the locking hole 11 to achieve a snap-fit ​​fixation. Applying external force can squeeze the steel ball to compress the compression spring, disengaging it from the locking hole 11 to complete the unlocking. The structure is simple and locking and unlocking are convenient.

[0030] The position of the locking hole 11 is precisely calibrated to ensure that when the two sets of mechanisms are engaged synchronously, the arc-shaped telescopic frame 9 is exactly in the center position.

[0031] A mounting base 12 is fixedly connected to the middle of the arc-shaped telescopic frame 9. A lighting lamp 13 is installed on the mounting base 12. When the arc-shaped telescopic frame 9 is locked, it is located in the middle position of the box body 1 and the box cover 3, and the three form a stable triangular support.

[0032] Mounting base 12 adopts a snap-on detachable structure, which facilitates the replacement and maintenance of lighting lamp 13.

[0033] The triangular support structure formed by the arc-shaped telescopic frame 9, the box body 1, and the box cover 3 has uniform force distribution and high rigidity, which can effectively resist the vibration in the well and the sinking of the box cover 3 due to gravity, ensuring that the box cover 3 does not shake during the testing process.

[0034] A normally closed push-button switch 14 is installed inside a mounting slot 6. The normally closed push-button switch 14 is electrically connected to the lighting lamp 13. A trigger block 15 is installed at one end of the arc-shaped telescopic frame 9, which is pressed and cooperates with the normally closed push-button switch 14. When the cover 3 is closed, the trigger block 15 presses the normally closed push-button switch 14 to disconnect the circuit. When the cover 3 is opened, it disengages from the normally closed push-button switch 14 to connect the circuit, so that the lighting lamp 13 automatically lights up.

[0035] The normally closed push-button switch 14 is a mature existing mechanical switch structure, which typically includes a housing, a push-button post, a return spring, and internal contacts. When not pressed, the internal contacts are closed. When pressed by an external force, the push-button post compresses the return spring, causing the internal contacts to open. After the external force disappears, the return spring pushes the push-button post back to its original position, and the contacts close again. Its core function is to switch the circuit on and off through mechanical pressing action.

[0036] The trigger block 15 is a protruding hard plastic block that moves synchronously with the arc-shaped telescopic frame 9.

[0037] The lighting lamp 13 is directly connected to the built-in rechargeable lithium battery of the intelligent calibrator body 2 of the compressed oxygen self-rescue device, eliminating the need for additional power modules or independent batteries, simplifying the structure and reducing energy consumption. At the same time, the main control circuit board of the intelligent calibrator body 2 of the compressed oxygen self-rescue device integrates power management functions, which can monitor the power supply status of the lighting lamp 13 in real time. When the rechargeable lithium battery is too low, it will prompt charging through the display screen to avoid sudden power outages during underground use.

[0038] The lighting lamp 13 is a special explosion-proof LED lamp for coal mines, and its illumination direction is towards the detection station of the main body 2 of the intelligent calibrator of compressed oxygen self-rescue device and the storage tank 5 area of ​​the inner lining layer 4.

[0039] When calibrating the compressed oxygen self-rescue device, the box cover 3 is opened horizontally around the rotation axis perpendicular to the ground. The box body 1 and the first arc-shaped fixing frame 7 and the second arc-shaped fixing frame 8 on the side of the box cover 3 unfold with the box cover 3, which drives the arc-shaped telescopic frame 9 on the outer side of the two fixing frames to slide synchronously.

[0040] The inner lining layer 4 has a placement groove 16, and a cleaning brush 17 is placed inside the placement groove 16. The cleaning brush 17 is used to clean the main body 2 of the intelligent calibrator of the compressed oxygen self-rescue device, the testing tools and the connection port of the compressed oxygen self-rescue device, effectively avoiding the influence of dust on the structure and the testing process.

[0041] During the unfolding process of the lid 3, a single set of elastic locking mechanism 10 is first triggered to engage with the corresponding locking hole 11 for initial positioning. As the unfolding continues until the detection and adaptation angle is reached, the two sets of elastic locking mechanisms 10 are simultaneously embedded into the locking holes 11 of the first arc-shaped fixing frame 7 and the second arc-shaped fixing frame 8. The arc-shaped telescopic frame 9 is located in the middle of the box body 1 and the lid 3, and the three form a stable triangular support.

[0042] During the unfolding of the box cover 3, the trigger block 15 on the arc-shaped telescopic frame 9 disengages from the normally closed push switch 14 in the mounting slot 6, the circuit is connected, and the lighting lamp 13 on the mounting base 12 is automatically lit by the built-in rechargeable lithium battery of the intelligent calibrator body 2 of the compressed oxygen self-rescue device, and the light covers the detection station and the storage slot 5 of the inner lining layer 4.

[0043] The calibration personnel retrieved the testing tools from the storage tank 5 and used the main body 2 of the intelligent calibration instrument for the compressed oxygen self-rescue device inside the box 1 to test the key parameters of the compressed oxygen self-rescue device and read the results on the display screen.

[0044] After the test is completed, the test tools are returned to the storage slot 5, the box cover 3 is pressed in the opposite direction to overcome the elastic force of the spring in the elastic locking mechanism 10, the steel ball in the elastic locking mechanism 10 is disengaged from the locking hole 11, the unlocking is completed, the arc-shaped telescopic frame 9 retracts back into the mounting slot 6, at the same time, the trigger block 15 moves with the arc-shaped telescopic frame 9 to squeeze the normally closed push switch 14 to disconnect the circuit, and the lighting lamp 13 is turned off.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A smart detection device for a mine compressed oxygen self-rescue device, comprising a housing (1) and a housing cover (3) hinged together by a rotating shaft perpendicular to the ground, wherein the housing (1) houses a main body (2) of a smart calibrator for the compressed oxygen self-rescue device, characterized in that, The box body (1) and the box cover (3) are provided with mounting grooves (6) on opposite sides. The inner sides of the two mounting grooves (6) are respectively fixedly connected to a first arc-shaped fixing frame (7) and a second arc-shaped fixing frame (8). The outer sides of the first arc-shaped fixing frame (7) and the second arc-shaped fixing frame (8) are locked and coaxially slidably sleeved with the same arc-shaped telescopic frame (9). The arc-shaped telescopic frame (9) is fixedly connected to a mounting base (12) in the middle. A lighting lamp (13) is installed on the mounting base (12). When the arc-shaped telescopic frame (9) is locked, it is located in the middle of the box body (1) and the box cover (3), and the three form a stable triangular support.

2. The intelligent detection device for a mine compressed oxygen self-rescue device according to claim 1, characterized in that, The inner side of the box cover (3) is fixed with an inner lining layer (4), and the inner lining layer (4) is provided with multiple storage slots (5), which are used to place testing tools.

3. The intelligent detection device for a mine compressed oxygen self-rescue device according to claim 1, characterized in that, The first arc-shaped fixing frame (7) and the second arc-shaped fixing frame (8) are both comb-tooth structures at their opposite ends, and are coaxially and alternately slidably connected.

4. The intelligent detection device for a mine compressed oxygen self-rescue device according to claim 3, characterized in that, Both ends of the arc-shaped telescopic frame (9) are equipped with a set of elastic snap-fit ​​locking mechanisms (10). The inner sides of the first arc-shaped fixed frame (7) and the second arc-shaped fixed frame (8) are provided with locking holes (11) that engage with the output end of the elastic snap-fit ​​locking mechanism (10).

5. The intelligent detection device for a mine compressed oxygen self-rescue device according to claim 1, characterized in that, A normally closed push switch (14) is installed on the inner side of one of the mounting slots (6). The normally closed push switch (14) is electrically connected to the lighting lamp (13). A trigger block (15) is installed at one end of the arc-shaped telescopic frame (9) to press and cooperate with the normally closed push switch (14). When the box cover (3) is closed, the trigger block (15) squeezes the normally closed push switch (14) to disconnect the circuit. When the box cover (3) is opened, it disengages from the normally closed push switch (14) to connect the circuit, so that the lighting lamp (13) lights up automatically.

6. The intelligent detection device for a mine compressed oxygen self-rescue device according to claim 2, characterized in that, The inner lining layer (4) has a placement groove (16), and a cleaning brush (17) is placed inside the placement groove (16).

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