A dustproof device for a mine camera

Abstract

The utility model relates to a mine camera dustproof device, including pedestal, the mount fixed on the pedestal, the cover of being located the outside of mount, camera head is fixed on the mount, send film subassembly, guide subassembly, press film subassembly and pull film subassembly, camera head is fixed in the mount top, send film subassembly is located one side of mount, guide subassembly is located above the mount, press film subassembly is located above the camera head outside the mount, pull film subassembly is located the other side of mount with send film subassembly is opposite, the isolation film is led out from send film subassembly, is covered above camera head through guide subassembly, pull film subassembly drives the isolation film to move when needing to switch clean isolation film, press film subassembly is compacted when monitoring isolation film. The utility model combines through multiple ways to realize the dustproof of camera in the mine.

Description

Technical Field

[0001] This utility model belongs to the field of camera dust prevention technology, specifically a dust prevention device for mining cameras. Background Technology

[0002] Coal mining faces in underground mines have high dust concentrations, and this dust spreads throughout the entire mining face along with the operation of the underground ventilation system. Nowadays, with the continuous development of intelligent coal mining technology, more and more monitoring systems are being deployed in the mining face to monitor the equipment, conditions, and status of the underground mine. However, the dust spreading throughout the mining face can affect the effect and quality of the footage.

[0003] In existing technologies, cameras in monitoring systems are typically cleaned manually. This method severely impacts work continuity and, due to the harsh underground environment, easily leads to safety issues. In addition, existing technologies also involve rinsing the lenses using cleaning equipment. This method requires a corresponding water tank, which is complex in structure, occupies a large space, and allows airborne particles to easily enter the rinsing pipes, affecting the proper cleaning of the lenses. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a dustproof device for mining cameras, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dustproof device for a mining camera, comprising a base, a mounting frame fixed on the base, and a cover disposed outside the mounting frame. The mounting frame is fixed with a camera, a film feeding assembly, a guiding assembly, a pressing assembly, and a pulling assembly. The camera is fixed to the top of the mounting frame. The film feeding assembly is located on one side of the mounting frame, the guiding assembly is located above the mounting frame, the pressing assembly is located above the mounting frame outside the camera, and the pulling assembly is located on the opposite side of the mounting frame from the film feeding assembly. An isolation film is led out from the film feeding assembly and, through the guiding assembly, covers the camera. The pulling assembly moves the isolation film when a clean isolation film needs to be switched. The pressing assembly presses the isolation film tightly during monitoring.

[0006] Preferably, the cover includes a housing and a flip-top cover. The housing has a film outlet on its side located at the lower end of the film feeding assembly. The flip-top cover includes an upper cover, an outer cover, and a flip-top drive. The upper cover is snapped onto the upper part of the housing and has an observation hole corresponding to the position of the camera. The outer cover is pivotally connected to the upper cover in conjunction with the flip-top drive, and the flip-top drive drives the outer cover to open or close.

[0007] Preferably, the film feeding assembly includes a film bin, a roll, and a pressure roller. The film bin is embedded in the mounting frame, and mounting grooves are provided on opposite sides. A release film roll is mounted on the roll, and both ends of the roll are engaged in the mounting grooves. The opposite sides of the film bin are also provided with strip grooves. Both ends of the pressure roller pass through the strip grooves and are fixed to the outer wall of the film bin with the help of springs. The pressure roller is in close contact with the surface of the release film roll under the action of the springs.

[0008] Preferably, the guiding assembly includes a guiding groove, a first guiding roller and a second guiding roller. The guiding groove is located on the mounting frame above the membrane chamber. There are two sets of the first guiding rollers, which are located on both sides of the camera at the top of the mounting frame. The second guiding roller is located at the upper end of the membrane chamber.

[0009] Preferably, the pressure film assembly includes an electric cylinder, a swing arm, a pressure ring, and a connector. The middle position of the swing arm is fixed to the top of the mounting frame by a bracket. One end of the swing arm has a semi-circular structure and is movably connected to the pressure ring. The pressure ring is sleeved on the outside of the camera. The other end of the swing arm is connected to the electric cylinder with the connector. The swing arm swings by extending and retracting the electric cylinder.

[0010] Preferably, the pressure ring has grooves on its two opposite sides, and a bearing is provided on the inner wall of the semi-circular structure of the swing arm and embedded in the groove to realize the movable connection between the pressure ring and the swing arm.

[0011] Preferably, the film stretching assembly includes a back plate and a front cover fixed on the mounting frame. A channel is formed between the back plate and the front cover. A film feeding roller, a tensioning roller, a cutting assembly, and an exit roller are arranged sequentially from top to bottom in the channel. The lower end of the back plate has a quarter-circle arc structure, changing the channel from vertical entry to horizontal exit, and the exit port is directly opposite the film outlet of the housing. The film feeding roller is located at the upper end of the channel. There are two sets of tensioning rollers, located above and below the film feeding roller, respectively. The cutting assembly is used to cut the release film. The exit roller and the film feeding roller are connected by a chain to send the cut release film out from the film outlet.

[0012] Preferably, the film feeding roller has protrusions at equal intervals on both ends of its circumference, which correspond to the notches at both ends of the separator film. As the film feeding roller rotates, the protrusions and notches engage in sequence, thereby pulling the separator film.

[0013] Preferably, the mounting frame is further provided with a door assembly located below the membrane stretching assembly. The door assembly includes a door, a push rod, and a multi-stage linkage rod. The door is hinged to one end of the multi-stage linkage rod, while the other end of the multi-stage linkage rod is hinged to the mounting frame. The telescopic end of the push rod is movably connected to the middle of the multi-stage linkage rod, off-center from the door. When the push rod extends, the connecting rod drives the multi-stage linkage rod to lift, and the door moves obliquely upward, pressing against the shell and blocking the membrane outlet.

[0014] As can be seen from the above, the dustproof device for a mining camera provided by this utility model has the following beneficial effects: an isolation membrane is set at the front end of the camera to effectively prevent dust from adhering to the camera surface. Through the cooperation of the film feeding assembly and the film pulling assembly, the isolation membrane can be automatically replaced after it becomes dirty, effectively ensuring cleanliness during each monitoring session. The flip-top cover is closed when not monitoring to prevent dust from entering the housing, achieving initial dust prevention. The membrane outlet on the side of the housing can effectively discharge the dirty isolation membrane, preventing the used isolation membrane from accumulating inside the housing and causing secondary pollution. The linkage door design closes the membrane outlet, which also serves as a dustproof function. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is an overall structural diagram of an embodiment of the present utility model;

[0018] Figure 2 The internal structure of this utility model embodiment Figure 1 ;

[0019] Figure 3 The internal structure of this utility model embodiment Figure 2 ;

[0020] Figure 4 This is a cross-sectional view of an embodiment of the present utility model;

[0021] Figure 5 This is a structural diagram of the upper cover in an embodiment of the present utility model. Detailed Implementation

[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] This utility model discloses a dustproof device for a mining camera, the structure of which is as follows: Figures 1-4As shown, the device includes a base 1, a mounting frame 2 fixed on the base, and a cover 3 located outside the mounting frame. A camera 4, a film feeding assembly 5, a guiding assembly 6, a film pressing assembly 7, a film pulling assembly 8, and a door assembly 9 are fixed on the mounting frame. The camera is fixed to the top of the mounting frame. The film feeding assembly is located on one side of the mounting frame, the guiding assembly is located above the mounting frame, the film pressing assembly is located above the mounting frame outside the camera, and the film pulling assembly is located on the opposite side of the mounting frame opposite the film feeding assembly. The door assembly is fixed to the mounting frame below the film pulling assembly. The separator film is a high-definition, high-transparency, and antistatic film. During monitoring, the isolation membrane effectively prevents dust from adhering to the camera surface by shielding it in front of the camera. When dust adheres to the isolation membrane and affects monitoring, the film feeding assembly and the film pulling assembly work together to move a clean isolation membrane to the front of the camera, ensuring both dust prevention and monitoring clarity. The isolation membrane is led out from the film feeding assembly and covered above the camera by the guide assembly. The film pulling assembly moves the isolation membrane when a clean isolation membrane needs to be switched, thus ensuring that the isolation membrane at the camera is always clean. The film pressing assembly presses the isolation membrane tightly during monitoring to prevent it from moving and affecting the captured image.

[0024] Specifically, the housing is located outside the mounting frame, and its structure includes a housing 31 and a flip-up top cover 32. The bottom of the housing is snapped into the base, and a film outlet 311 is provided on the side of the housing between the film feeding assembly and the door assembly. The flip-up top cover includes a top cover 321, an outer cover 322, and a flip-up drive 323. The top cover is snapped into the upper part of the housing, and an observation hole 324 is provided corresponding to the position of the camera. The outer cover is pivotally connected to the top cover in conjunction with the flip-up drive, and the flip-up drive opens or closes the outer cover. Figure 5 As shown, the flip cover drive consists of a motor 325, a worm gear 326, and a turbine 327. The outer cover is opened when monitoring is required and closed when not in use, thus providing initial dust protection.

[0025] The film feeding assembly is located below one side of the mounting frame and is used to hold the release film roll. Its specific structure is as follows: Figure 2 and 4 As shown, the device includes a film compartment 51, a roll 52, and a pressing roller 53. The film compartment is embedded in the mounting frame, and mounting grooves 54 are provided on opposite sides. The release film roll is mounted on the roll, and the two ends of the roll are engaged in the mounting grooves. The opposite sides of the film compartment also have strip grooves 55. The strip grooves are inclined and their upper ends extend to the mounting grooves. The two ends of the pressing roller pass through the strip grooves and are fixed to the outer wall of the film compartment with the help of springs. The release film is led out of the film compartment from below, and the pressing roller presses the surface of the release film roll from below. As the outer diameter of the release film roll decreases, the pressing roller always sticks to the surface of the release film roll under the action of the springs to prevent the release film roll from loosening.

[0026] The guiding component is used to guide the membrane during transport, and its structure is as follows: Figure 2 and 3 As shown, the assembly includes a guide groove 61, a first guide roller 62, and a second guide roller 63. The guide groove is located on a mounting frame above the film chamber, with baffles 64 on both sides to block the isolation film. There are two sets of first guide rollers, located on both sides of the camera at the top of the mounting frame. The second guide roller is located at the top of the film chamber. Both the first and second guide rollers can rotate freely. After the isolation film is drawn out from the film chamber, it is conveyed upward through the second guide roller and the guide groove. The two sets of first guide rollers ensure that the isolation film is horizontally positioned above the camera. The guide assembly can guide the transmission of the isolation film and ensure its stability during movement. The design of the second guide roller avoids the isolation film drawn out from the film chamber from being directly rubbed and conveyed in the guide groove, which would cause wear on the isolation film. The two sets of first guide rollers support the isolation film on both sides, making it horizontally arranged, which is convenient for the pressing assembly to press.

[0027] The pressure-film assembly is used to press the isolation film during monitoring, so that the isolation film adheres tightly to the observation hole on the top cover. The specific structure is as follows: Figure 3 As shown, it includes an electric cylinder 71, a swing arm 72, a pressure ring 73, and a connector 74. The middle position of the swing arm is fixed to the top of the mounting frame by a bracket 75. One end of the swing arm has a semi-circular structure and is movably connected to the pressure ring. The pressure ring is sleeved on the outside of the camera. The other end of the swing arm is connected to the electric cylinder with the connector. The swing arm swings by extending and retracting the electric cylinder.

[0028] The swing arm is fixed in the middle by a bracket, and both ends can swing freely (seesaw principle). When the electric cylinder extends and retracts, it causes one end of the swing arm to rise or fall, and the semi-circular structure at the other end of the swing arm falls or rises at the same time, thereby causing the pressure ring to rise and press the isolation membrane, or fall and release the pressure on the isolation membrane.

[0029] The pressure ring has slots 76 on its two opposite sides. The inner wall of the semi-circular structure of the swing arm is provided with a bearing (not shown) embedded in the slot, so as to realize the movable connection between the pressure ring and the swing arm. The cooperation between the bearing and the slot makes the pressure ring rise vertically when the swing arm is lifted, so as to fully compress the isolation membrane.

[0030] The membrane-pulling assembly is located on the other side of the mounting bracket and is used to pull the isolation membrane to ensure that the isolation membrane at the front of the camera is always clean. Its specific structure is as follows: Figure 3 and 4As shown, the device includes a back plate 81 and a front cover 82 fixed on a mounting frame. A channel is formed between the back plate and the front cover. Within this channel, from top to bottom, are arranged a film feeding roller 83, a tension roller 84, a cutting assembly 85, and an exit roller 86. The back plate is vertically fixed to the mounting frame, and its lower end has a quarter-circle arc structure, changing the channel's entry point from vertical to horizontal exit. The exit port faces the film outlet of the housing. The film feeding roller is located at the upper end of the channel. Two sets of tension rollers are located above and below the film feeding roller, respectively. The film feeding roller passes through... The motor connected to the unit drives its rotation. At the same time, the film feeding roller has protrusions at equal intervals on both ends of its circumference, which correspond to the notches at both ends of the release film. As the film feeding roller rotates, the protrusions and notches engage in sequence, thereby pulling the release film. The arrangement of the upper and lower tension rollers ensures that the release film is in close contact with the surface of the film feeding roller. The cutting assembly consists of a lead screw and a cutter. The lead screw drives the cutter to move laterally, thereby cutting the passing release film. The cut release film is sent to the film outlet by the rotating lead-out roller. The lead-out roller and the film feeding roller are connected by a chain to achieve synchronous rotation.

[0031] The film-pulling assembly is used to replace the isolation film in front of the camera when it becomes dirty. Specifically, it can be manually operated on-site according to the degree of dirtiness to rotate the film-feeding roller motor, or it can be remotely controlled by sending commands to rotate the film-feeding roller motor.

[0032] The door assembly is mounted on the mounting bracket and is used to block the membrane outlet. The specific structure is as follows: Figure 3 and 4 As shown, the device includes a door 91, a push rod 92, and a multi-stage linkage rod 93. The door is hinged to one end of the multi-stage linkage rod, while the other end of the multi-stage linkage rod is hinged to the mounting frame. The telescopic end of the push rod is connected to the connecting rod 94 and is movably linked to one end of the door in the middle of the multi-stage linkage rod. When the push rod extends, the connecting rod drives the multi-stage linkage rod to lift, thereby moving the door diagonally upward to press against the housing and block the membrane outlet, thus preventing dust from entering under normal circumstances. When the membrane pulling assembly pulls the separation membrane, the push rod retracts, the door resets, and the separation membrane, which is easy to cut, is discharged from the membrane outlet.

[0033] This utility model discloses a dustproof device for a mining camera. An isolation membrane is set at the front end of the camera to effectively prevent dust from adhering to the camera surface. Through the cooperation of the film feeding component and the film pulling component, the isolation membrane can be automatically replaced when it becomes dirty, effectively ensuring cleanliness during each monitoring session. The flip-up top cover closes when not monitoring to prevent dust from entering the housing, achieving initial dust prevention. The film outlet on the side of the housing can effectively discharge the dirty isolation membrane, preventing the used isolation membrane from accumulating inside the housing and causing secondary pollution. The linkage door design closes the film outlet, which also serves as a dustproof function.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dustproof device for a mining camera, characterized in that: The device includes a base, a mounting bracket fixed on the base, and a cover located outside the mounting bracket. A camera, a film feeding assembly, a guiding assembly, a film pressing assembly, and a film pulling assembly are fixed on the mounting bracket. The camera is fixed to the top of the mounting bracket. The film feeding assembly is located on one side of the mounting bracket, the guiding assembly is located above the mounting bracket, the film pressing assembly is located above the mounting bracket outside the camera, and the film pulling assembly is located on the opposite side of the mounting bracket from the film feeding assembly. An isolation film is led out from the film feeding assembly, passes through the guiding assembly, and covers the camera. The film pulling assembly moves the isolation film when a clean isolation film needs to be switched. The film pressing assembly presses the isolation film tightly during monitoring.

2. The dustproof device for a mining camera according to claim 1, characterized in that: The cover includes a housing and a flip-top cover. The housing has a film outlet on its side located at the lower end of the film feeding assembly. The flip-top cover includes an upper cover, an outer cover, and a flip-top drive. The upper cover is snapped onto the upper part of the housing and has an observation hole corresponding to the position of the camera. The outer cover is pivotally connected to the upper cover in conjunction with the flip-top drive, and the flip-top drive drives the outer cover to open or close.

3. The dustproof device for a mining camera according to claim 2, characterized in that: The film feeding assembly includes a film bin, a roll, and a pressure roller. The film bin is embedded in the mounting frame and has assembly grooves on its opposite sides. A release film roll is mounted on the roll, and both ends of the roll are engaged in the assembly grooves. The opposite sides of the film bin also have strip grooves. The two ends of the pressure roller pass through the strip grooves and are fixed to the outer wall of the film bin with the help of springs. The pressure roller is in close contact with the surface of the release film roll under the action of the springs.

4. The dustproof device for a mining camera according to claim 3, characterized in that: The guiding assembly includes a guiding groove, a first guiding roller, and a second guiding roller. The guiding groove is located on the mounting frame above the membrane chamber. There are two sets of the first guiding rollers, located on both sides of the camera at the top of the mounting frame. The second guiding roller is located at the upper end of the membrane chamber.

5. A dustproof device for a mining camera according to claim 1, characterized in that: The pressure film assembly includes an electric cylinder, a swing arm, a pressure ring, and a connector. The middle position of the swing arm is fixed to the top of the mounting frame by a bracket. One end of the swing arm has a semi-circular structure and is movably connected to the pressure ring. The pressure ring is sleeved on the outside of the camera. The other end of the swing arm is connected to the electric cylinder with the connector. The swing arm swings by extending and retracting the electric cylinder.

6. A dustproof device for a mining camera according to claim 5, characterized in that: The pressure ring has grooves on its two opposite sides, and a bearing is provided on the inner wall of the semi-circular structure of the swing arm, which is embedded in the groove to realize the movable connection between the pressure ring and the swing arm.

7. A dustproof device for a mining camera according to claim 2, characterized in that: The film-stretching assembly includes a back plate and a front cover fixed on a mounting frame. A channel is formed between the back plate and the front cover. From top to bottom, a film feeding roller, a tensioning roller, a cutting assembly, and an exit roller are arranged in the channel. The lower end of the back plate has a quarter-circle arc structure, which changes the channel from vertical entry to horizontal exit, and the exit port is directly opposite the film outlet of the housing. The film feeding roller is located at the upper end of the channel. There are two sets of tensioning rollers, located above and below the film feeding roller, respectively. The cutting assembly is used to cut the release film. The exit roller and the film feeding roller are connected by a chain to send the cut release film out of the film outlet.

8. A dustproof device for a mining camera according to claim 7, characterized in that: The film feeding roller has protrusions at equal intervals on both ends of its circumference, which correspond to the notches at both ends of the isolation film. As the film feeding roller rotates, the protrusions and notches engage in sequence, thereby pulling the isolation film.

9. A dustproof device for a mining camera according to claim 2, characterized in that: The mounting frame is also equipped with a door assembly located below the membrane stretching assembly. The door assembly includes a door, a push rod, and a multi-stage linkage rod. The door is hinged to one end of the multi-stage linkage rod, while the other end of the multi-stage linkage rod is hinged to the mounting frame. The telescopic end of the push rod is movably connected to the middle of the multi-stage linkage rod, off-center from the door end. When the push rod extends, the connecting rod drives the multi-stage linkage rod to lift, and the door moves diagonally upward, pressing against the shell and blocking the membrane outlet.

Images