Mining intrinsic safety type camera with protection function

Abstract

The invention provides a mining intrinsic safety type video camera with a protection function, and belongs to the technical field of video camera position control, the mining intrinsic safety type video camera comprises a protection unit, a displacement unit and a distribution unit, the protection unit comprises a base, a sliding seat arranged on the base in a sliding mode and a protection cover fixedly connected to the sliding seat, and the base is provided with a driving cavity; the protective cover comprises an outer supporting cover, an inner supporting cover and an isolation cover which are sequentially arranged from outside to inside in a sleeving mode. A deformation cavity is defined by the inner supporting cover and the isolation cover. The shifting unit is arranged in the driving cavity and comprises a balance rod, a sliding block arranged on the balance rod in a sliding mode and lifting assemblies arranged at the two ends of the balance rod, the sliding block moves in the length direction of the balance rod and is connected with the sliding base, and each lifting assembly comprises a base with a jacking cavity and a lifting rod arranged in the jacking cavity; the lifting rod is slidably connected with the base; the distribution unit communicates with the jacking cavities and the deformation cavity and is used for distributing fluid into the two jacking cavities and resetting the fluid. According to the invention, the possibility that the camera is damaged is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of camera position control, and in particular relates to a mining intrinsically safe camera with a protection function. Background Art

[0002] In the coal mine safety production system, the coal mining face (mining face) is one of the most core, dynamic, and high-risk areas. For real-time monitoring, intrinsically safe mining cameras are deployed in this area. However, the mining face is an area where ground stress is released violently. Under the influence of coal cutting by shearers, hydraulic support frame movement, and cyclical pressure, the roof rock layer and coal wall are prone to localized fracture and separation, resulting in the sudden fall or scattering of rocks of various sizes.

[0003] In order to avoid the risk of the camera being damaged by rocks, the camera will be equipped with a mobile structure, and a protective cover is usually set around the camera. When the risk of being damaged is detected, the control system sends a start signal to the electronic control component, so that the electronic control component drives the mobile structure and then drives the camera to move away from the falling rock area.

[0004] It can be seen from this that the electronic control component will only start after receiving the start signal, and it takes time to detect the risk of being hit, send the start signal, receive the start signal and start moving. This will cause the electronic control component to drive the camera to leave the rockfall area, which will be delayed until the time when the force on the protective cover reaches the preset value. That is, the camera may be damaged before it moves in time, increasing the possibility of damage to the camera. Summary of the Invention

[0005] An embodiment of the present invention provides a mining intrinsically safe camera with a protective function, which aims to solve the technical problem that the electronic control component drives the camera to leave the rockfall area, which is delayed until the time point when the force on the protective cover reaches a preset value, resulting in a high possibility of damage to the camera.

[0006] To achieve the above object, the technical solution adopted by the present invention is to provide a mining intrinsically safe camera with a protective function, which is suitable for use as a camera, comprising: The protective unit includes a base, a slide slidably mounted on the base, and a protective cover fixed to the slide, wherein the base is provided with a driving cavity communicating with the outside, the slide moves along a first direction, the protective cover includes an outer support cover, an inner support cover, and an isolation cover sequentially sleeved from the outside to the inside, the inner support cover and the isolation cover enclosing a deformation cavity, and the isolation cover is used to install the camera; a shift unit disposed in the driving cavity, the shift unit comprising a balance bar, a slider slidably mounted on the balance bar, and lifting assemblies disposed at both ends of the balance bar along the first direction, the slider moving along the length of the balance bar, the slider being connected to the slide, the lifting assembly comprising a base having a lifting cavity and a lifting rod disposed in the lifting cavity, the lifting rod being slidably connected to the base, and the moving direction of the lifting rod being perpendicular to the first direction; and The distribution unit is connected to the lifting cavity and the deformation cavity, and is used for distributing fluid into the two lifting cavities and resetting the fluid.

[0007] In a possible implementation, the allocating unit includes: A transfer box is disposed in the driving cavity and fixedly connected to the base; an overflow pipe connected to the transfer box and the deformation chamber; a perfusion mechanism comprising a first perfusion pipe connected to the transfer box and one of the lifting chambers, a second perfusion pipe connected to the transfer box and the other of the lifting chambers, and a first control structure for controlling the opening and closing of the first perfusion pipe and the second perfusion pipe; and The reinjection mechanism includes a first reinjection pipe connected to the transfer box and one of the lifting chambers, a second reinjection pipe connected to the transfer box and the other lifting chamber, and a second control structure for controlling the opening and closing of the first reinjection pipe and the second reinjection pipe.

[0008] In a possible implementation, the slider is fixedly connected to a synchronization rod; The allocation unit further includes a determination mechanism, which includes: a transmission rod connected to the slide, the transmission rod being provided with an avoidance groove for movement of the synchronization rod, wherein an extension direction of the avoidance groove is perpendicular to the first direction; Two limit blocks are provided on both sides of the driving cavity along the first direction, the limit blocks having a first working state of abutting against the transmission rod and a second working state of being separated from the transmission rod; and Two limiting structures corresponding to the limiting blocks one by one; When the force applied to the protective cover is less than a preset value, the limit assembly places the limit block in the first working state; when the force applied to the protective cover reaches a preset value, the limit assembly places the limit block in the second working state.

[0009] In one possible implementation, the distribution unit further includes two partitions disposed oppositely within the transfer box, the two partitions dividing the transfer box into a second area, a first area, and a third area sequentially arranged along a second direction, the partitions being slidably connected to the transfer box along the second direction, the overflow pipe being in communication with the first area, the first infusion pipe and the second infusion pipe both being in communication with the first area, the inner diameter of the overflow pipe being larger than the inner diameters of the first infusion pipe and the second infusion pipe, and the first return pipe and the second return pipe both being in communication with the first area; The limiting structure includes: A limit seat is provided with a downward pressure cavity, and the limit seat is fixedly connected to the base; a limiting rod disposed in the lower pressure chamber, the limiting rod being slidably connected to the limiting seat, the moving direction of the limiting rod being perpendicular to the first direction, and the limiting rod being fixedly connected to the limiting block; a deformable member, fixedly connected between the limiting rod and the limiting seat, and having a pre-tightening force for causing the limiting rod to move away from the limiting seat; and The flow diversion component includes a first flow diversion pipe connected to one of the lower pressure chambers and the second area, and a second flow diversion pipe connected to the other lower pressure chamber and the third area.

[0010] In a possible implementation, the first control structure includes: two first valves, respectively provided on the first perfusion pipe and the second perfusion pipe; Two linkage rods, fixedly connected to the runner of the first valve in a one-to-one correspondence, the linkage rods being coaxial with the runner and rotatably connected to the base, and the rotation axes of the linkage rods being perpendicular to the first direction; and The transmission assembly is arranged between the slide and the linkage rod, and is used to enable the slide to drive the linkage rod to rotate.

[0011] In a possible implementation, the transmission rod is fixedly connected to the sliding seat; The transmission assembly comprises: a first magnetic wheel, rotatably connected to the outer periphery of the transmission rod, wherein the rotation axis of the first magnetic wheel is parallel to the rotation axis of the linkage rod; a transmission gear, fixedly connected to the outer periphery of the first magnetic wheel; a transmission rack extending along the first direction and meshing with the transmission gear, the transmission rack also being fixedly connected to the base; A second magnetic wheel is fixed to the outer periphery of the linkage rod; and The transition magnetic wheel is provided between the first magnetic wheel and the second magnetic wheel. The transition magnetic wheel is rotatably connected to the base. The rotation axis of the transition magnetic wheel is perpendicular to the rotation axis of the linkage rod.

[0012] In a possible implementation, the second control structure includes: Two second valves, respectively provided on the first re-injection pipe and the second re-injection pipe, the second valve comprising a valve core and a valve body; Two drive seats are fixedly connected to the valve body in a one-to-one correspondence. A control cavity is defined in the drive seats. One end of the valve core extends into the control cavity. The valve core is slidably connected to the drive seats, and the valve core moves toward or away from the valve body; and An identification component injects fluid into one of the control chambers according to the position of the slide.

[0013] In one possible implementation, the identification component includes: Two material storage tanks are respectively arranged on both sides of the driving cavity along the first direction, and the material storage tanks are fixedly connected to the base; Two pistons, one corresponding to the storage tank, one end of the piston extends into the storage tank, the other end of the piston has a force-bearing surface, the piston is slidably connected to the storage tank, and the piston moves along the central axis of the storage tank; and Two communicating pipes are used to connect the material storage tank and the control chamber, which are arranged on both sides of the driving chamber along the first direction.

[0014] In a possible implementation, the displacement unit further includes a plurality of triggering posts slidably disposed on the inner support cover, the triggering posts abutting against an inner wall of the outer support cover, and the triggering posts move radially along the inner support cover.

[0015] In one possible implementation, the base is fixed to the pedestal, a compensation block is hingedly connected to one end of the lifting rod away from the base, the hinge axis between the lifting rod and the compensation block is perpendicular to the moving direction of the lifting rod, the compensation block is slidably connected to the balance rod, and the compensation block moves along the length direction of the balance rod.

[0016] Compared with the prior art, the intrinsically safe mining camera with protective function provided by the present invention cleverly converts impact force into the source power for driving displacement, collects pressure changes through the deformation cavity in the protective cover, and uses the distribution unit to regulate the distribution of fluid in the jacking cavities of the two lifting components, thereby driving the displacement unit to drive the entire protective cover and the camera inside to move smoothly along the first direction; at the same time, the protective cover adopts a three-layer nested structure of an outer support cover, an inner support cover and an isolation cover, which not only provides a solid physical barrier for the camera, but the deformation cavity is also the key pressure source and buffer cavity of the entire force-displacement conversion system, which can effectively absorb and transmit energy when subjected to impact, thereby protecting the camera body and providing reliable power for displacement. The present invention is completely driven by physical structure and fluid pressure from the occurrence of impact, pressure transmission, fluid distribution, lifting rod movement, balance rod tilting, slider sliding to the final camera translation avoidance. The entire process does not need to wait for external electrical signal triggering, completely eliminating the risk of avoidance delay caused by dependence on electronic control signal transmission, and solving the fatal defect of the electronic control system that cannot protect the camera in time due to signal interference or transmission lag, which greatly improves the survival rate of the camera in dynamic and high-risk environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a mining intrinsically safe camera with a protection function according to an embodiment of the present invention; Figure 2 This is a cross-sectional view showing the structure inside the driving cavity according to an embodiment of the present invention; Figure 3 A partial cross-sectional view of a protective cover according to an embodiment of the present invention; Figure 4 Schematic diagram of the structure of the shift unit and the distribution unit in an embodiment of the present invention; Figure 5 This is a partial cross-sectional view showing the position of the lifting cavity in an embodiment of the present invention; Figure 6 is a cross-sectional view of an identification component according to an embodiment of the present invention; Figure 7 This is a partial cross-sectional view showing the internal layout of a transfer box according to an embodiment of the present invention; Figure 8 This is a partial cross-sectional view of an embodiment of the present invention showing a first valve closing mode and the position of a lower pressure chamber; Figure 9 This is a partial cross-sectional view showing the position of the control cavity according to an embodiment of the present invention.

[0018] Description of reference numerals: 10. Protection unit; 101. Base; 1011. Drive cavity; 102. Slide; 103. Protection cover; 1031. External support cover; 1032. Internal support cover; 1033. Isolation cover; 1034. Deformation cavity; 1035. Visual window; 104. Organ cover; 20. Shift unit; 201. Balance bar; 202. Slider; 2021. Synchronous bar; 203. Base; 2031. Lifting cavity; 204. Lifting rod; 2041. Compensation block; 205. First elastic member; 206. Trigger column; 30. Distribution unit; 301. Transfer box; 302. Overflow pipe; 303. First filling pipe; 304. Second filling pipe; 305. First return pipe; 306. Second return pipe; 307. Transmission rod; 3071. Avoidance groove; 308. Limit block; 3081. Inclined surface; 3082. Straight surface; 309. Partition; 310. Second area; 311. First area; 312. Third area; 313. Limit seat; 3131. Down-pressure chamber; 314. Limit rod; 315. 5. Deformable member; 316. First shunt pipe; 317. Second shunt pipe; 318. First valve; 319. Linkage rod; 320. First magnetic wheel; 321. Transmission gear; 322. Transmission rack; 323. Second magnetic wheel; 324. Transition magnetic wheel; 325. Second valve; 3251. Valve body; 3252. Valve core; 326. Drive seat; 3261. Control chamber; 327. Storage tank; 328. Piston; 329. Connecting pipe; 330. Second elastic member; 40. Camera. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] Please also refer to Figures 1 to 9, the invention provides an intrinsically safe mining camera with a protective function. A mining intrinsically safe mining camera with a protective function is applicable to a camera 40, comprising a protective unit 10, a shift unit 20 and a distribution unit 30; the protective unit 10 comprises a base 101, a slide 102 slidably mounted on the base 101 and a protective cover 103 fixed to the slide 102, the base 101 is provided with a driving cavity 1011 communicating with the outside, the slide 102 moves along a first direction, the protective cover 103 comprises an outer support cover 1031, an inner support cover 1032 and an isolation cover 1033 which are sequentially sleeved from the outside to the inside, the inner support cover 1032 and the isolation cover 1033 enclose a deformation cavity 1034, and the isolation cover 1033 is used to install the camera 40; the shift unit 20 Located in the driving chamber 1011, the shift unit 20 includes a balance rod 201, a slider 202 slidably mounted on the balance rod 201, and a lifting assembly arranged at both ends of the balance rod 201 along a first direction. The slider 202 moves along the length direction of the balance rod 201. The slider 202 is connected to the slide 102. The lifting assembly includes a base 203 having a lifting cavity 2031 and a lifting rod 204 arranged in the lifting cavity 2031. The lifting rod 204 is slidably connected to the base 203, and the moving direction of the lifting rod 204 is perpendicular to the first direction; the distribution unit 30 is connected to the lifting cavity 2031 and the deformation cavity 1034, and is used for distributing fluid to the two lifting cavities 2031 and resetting the fluid.

[0021] The protective cover 103 has an annular visual window 1035, and the camera 40 operates through the visual window 1035. The camera 40 can autonomously adjust the shooting direction to meet the operation requirements; the protective unit 10 also includes an accordion cover 104, which is arranged at the opening where the drive chamber 1011 is connected to the outside world to prevent dust in the mine from entering the drive chamber 1011.

[0022] Optional, see Figure 5 The lifting assembly also includes a first elastic member 205 disposed between the lifting rod 204 and the base 203. The first elastic member 205 can be a spring or a spring rod. The first elastic member 205 has a pre-tightening force that causes the lifting rod 204 to move away from the balance rod 201.

[0023] Optionally, the resetting of the lifting rod 204 relies on the transfer of fluid pressure.

[0024] It should be noted that the fluid may be a liquid, such as water or hydraulic oil.

[0025] In the protective mining intrinsically safe camera provided in this embodiment, when a falling rock strikes the outermost outer support cover 1031, the impact force is transmitted through the outer support cover 1031 to the inner support cover 1032, causing the deformation chamber 1034 to be squeezed, resulting in an instantaneous increase in the internal fluid pressure. The distribution unit 30 monitors and connects the deformation chamber 1034 with the lifting chambers 2031 of the two lifting assemblies in the displacement unit 20 in real time. The fluid with increased pressure is distributed to one of the lifting chambers 2031 as needed through the distribution unit 30. The injected fluid pushes the lifting rod 204 to move and extend in the lifting chamber 2031 in a direction perpendicular to the first direction. Since the two lifting rods 204 are located at both ends of the balance bar 201, the rise of a single lifting rod 204 will cause the balance bar 201 to tilt. Slider 202 is slidably mounted on balance bar 201. When balance bar 201 tilts, slider 202 slides along its length. The movement of slider 202 directly drives slide base 102 in the first direction. This movement ultimately drives the entire protective cover 103 and the camera 40 mounted within isolation cover 1033 to move synchronously, allowing camera 40 to quickly move away from its original position and reach a safe area. Distributor unit 30 is also responsible for directing the fluid within lifting chamber 2031 back to deformation chamber 1034 or a designated location after an impact or when reset is required. This resets lifting rod 204, restores balance bar 201 to a horizontal position, and returns slider 202 and slide base 102 to their original positions, preparing the entire system for the next possible impact.

[0026] Compared with the existing technology, the impact force is cleverly converted into the source power for driving displacement, the pressure change is collected through the deformation cavity 1034 in the protective cover 103, and the distribution unit 30 is used to regulate the distribution of the fluid in the lifting cavity 2031 of the two lifting components, thereby driving the displacement unit 20 to drive the entire protective cover 103 and the internal camera 40 to move smoothly along the first direction; at the same time, the protective cover 103 adopts a three-layer nested structure of an outer support cover 1031, an inner support cover 1032 and an isolation cover 1033, which not only provides a solid physical barrier for the camera 40, but the deformation cavity 1034 is also the key pressure source and buffer cavity of the entire force-displacement conversion system, which can effectively absorb and transmit energy when subjected to impact, thereby protecting the camera 40 body and providing reliable power for displacement. The present invention is completely driven by physical structure and fluid pressure from the occurrence of impact, pressure transmission, fluid distribution, movement of the lifting rod 204, tilting of the balance rod 201, sliding of the slider 202 to the final translational avoidance of the camera 40. The entire process does not need to wait for external electrical signal triggering, completely eliminating the risk of avoidance delay caused by dependence on electronic control signal transmission, and solving the fatal defect of the electronic control system that cannot protect the camera 40 in time due to signal interference or transmission lag, which greatly improves the survival rate of the camera 40 in dynamic high-risk environments.

[0027] In some embodiments, see Figures 2 to 4The distribution unit 30 includes a transfer box 301, an overflow pipe 302, a perfusion mechanism and a backfill mechanism; the transfer box 301 is arranged in the driving chamber 1011 and is fixed to the base 101; the overflow pipe 302 is connected to the transfer box 301 and the deformation chamber 1034; the perfusion mechanism includes a first perfusion pipe 303 connected to the transfer box 301 and one of the lifting chambers 2031, a second perfusion pipe 304 connected to the transfer box 301 and the other lifting chamber 2031, and a first control structure for controlling the opening and closing of the first perfusion pipe 303 and the second perfusion pipe 304; the backfill mechanism includes a first backfill pipe 305 connected to the transfer box 301 and one of the lifting chambers 2031, a second backfill pipe 306 connected to the transfer box 301 and the other lifting chamber 2031, and a second control structure for controlling the opening and closing of the first backfill pipe 305 and the second backfill pipe 306. Both the first return pipe 305 and the second return pipe 306 are provided with a one-way valve, which can allow the liquid to flow back from the lifting chamber 2031 to the transfer box 301.

[0028] When falling rocks impact the protective cover 103, causing the fluid pressure in the deformation chamber 1034 to increase, the high-pressure fluid first leaks into the transfer box 301 at high speed through the overflow pipe 302. The fluid in the transfer box 301 is then directionally distributed by the first control structure. After the fluid is injected into the target lifting chamber 2031, it pushes the target lifting rod 204 to extend, forcing the balance rod 201 to tilt; after the camera 40 moves to the target position, the second control structure transfers the fluid in the target lifting chamber 2031 to the transfer box 301, the lifting rod 204 retracts to the base 203, and the balance rod 201 returns to a horizontal posture.

[0029] The transfer box 301 continuously acts as a transfer hub in this cycle, and realizes the avoidance action of the camera 40 through purely mechanical pressure distribution, thereby ensuring the reliability of the device.

[0030] In some embodiments, see Figure 4 、 Figure 6 and Figure 8 The slider 202 is fixedly connected to the synchronization rod 2021; the distribution unit 30 also includes a determination mechanism, which includes a transmission rod 307, two limit blocks 308 and two limit structures; the transmission rod 307 is connected to the slide 102, and the transmission rod 307 is provided with an avoidance groove 3071 for the movement of the synchronization rod 2021, and the extension direction of the avoidance groove 3071 is perpendicular to the first direction; the two limit blocks 308 are arranged on both sides of the driving cavity 1011 along the first direction, and the limit blocks 308 have a first working state abutting against the transmission rod 307 and a second working state disengaged from the transmission rod 307; the two limit structures correspond one to one to the limit blocks 308.

[0031] When the force applied to the protective cover 103 is less than a preset value, the limiting assembly places the limiting block 308 in the first working state; when the force applied to the protective cover 103 reaches the preset value, the limiting assembly places the limiting block 308 in the second working state.

[0032] When a falling rock hits the protective cover 103, if the impact force is lower than the preset value, the limit block 308 maintains the first working state under the constraint of the limit structure. At this time, the displacement of the transmission rod 307 is mechanically locked, and the slide 102 cannot move in the first direction. The protective cover 103 only absorbs energy through its own deformation, and the camera 40 remains in place; once the impact force reaches the preset threshold, the limit block 308 switches to the second working state, the transmission rod 307 instantly releases the mechanical lock, and the slide 102 then moves in the first direction under the drive of the shift unit 20, and the synchronization rod 2021 drives the protective cover 103 and the camera 40 to move synchronously to avoid the falling rock area.

[0033] By setting a limit structure, the protective cover 103 does not trigger a system response when subjected to a low-intensity impact, effectively preventing malfunction; when the impact force reaches a preset critical value, the limit block 308 instantly disengages from the transmission rod 307 under purely mechanical action, causing the slide 102 to be unlocked immediately.

[0034] After the balancing pole 201 tilts, the height of the slider 202 changes continuously during the movement. The avoidance groove 3071 is provided to ensure that the movement of the slider 202 is not restricted.

[0035] In some embodiments, see Figure 7 and Figure 8 The distribution unit 30 also includes two partitions 309 arranged opposite to each other in the transfer box 301. The two partitions 309 divide the transfer box 301 into a second area 310, a first area 311 and a third area 312 arranged in sequence along the second direction. The partitions 309 are slidably connected to the transfer box 301 along the second direction. The overflow pipe 302 is connected to the first area 311, and the first perfusion pipe 303 and the second perfusion pipe 304 are both connected to the first area 311. The inner diameter of the overflow pipe 302 is larger than the inner diameters of the first perfusion pipe 303 and the second perfusion pipe 304. The first return pipe 305 is connected to the second area 310, and the second return pipe 306 is connected to the third area 312.

[0036] The limiting structure includes a limiting seat 313, a limiting rod 314, a deformable part 315 and a diverter assembly; the limiting seat 313 is provided with a lower pressure chamber 3131, and the limiting seat 313 is fixedly connected to the base 101; the limiting rod 314 is arranged in the lower pressure chamber 3131, the limiting rod 314 is slidably connected to the limiting seat 313, the moving direction of the limiting rod 314 is perpendicular to the first direction, the limiting rod 314 is also fixedly connected to the limiting block 308, the deformable part 315 is fixedly connected between the limiting rod 314 and the limiting seat 313, the deformable part 315 has a pre-tightening force that causes the limiting rod 314 to move away from the limiting seat 313, and the deformable part 315 can be a spring or a spring rod; the diverter assembly includes a first diverter pipe 316 connected to one of the lower pressure chambers 3131 and the second area 310, and a second diverter pipe 317 connected to the other lower pressure chamber 3131 and the third area 312.

[0037] The limiting block 308 has an inclined surface 3081 and a straight surface 3082 . The straight surface 3082 limits the position of the limiting rod 314 , while the inclined surface 3081 allows the limiting rod 314 to pass through the limiting block 308 .

[0038] It should be noted that the second direction may coincide with the first direction, and the second direction may also form an angle with the first direction.

[0039] When the protective cover 103 is subjected to an impact force, the pressurized fluid in the deformation chamber 1034 flows into the first region 311 through the overflow pipe 302. If the impact force applied to the protective cover 103 is less than a predetermined value, the total amount of fluid flowing into the first region 311 is relatively small, and cannot completely overcome the elastic force of the deformable member 315, causing the stop block 308 to disengage from the transmission rod 307. The stop block 308 remains in contact with the transmission rod 307. If the impact force applied to the protective cover 103 is greater than or equal to the predetermined value, the total amount of fluid flowing into the first region 311 is relatively large. The fluid flowing into the lower pressure chamber 3131 completely overcomes the elastic force of the deformable member 315, causing the stop block 308 to completely disengage from the transmission rod 307 due to the stop rod 314.

[0040] In some embodiments, see Figure 6 and Figure 8 The first control structure includes two first valves 318, two linkage rods 319 and a transmission assembly; the two first valves 318 are respectively arranged on the first perfusion tube 303 and the second perfusion tube 304; the two linkage rods 319 are fixedly connected to the runners of the first valves 318 in a one-to-one correspondence, the linkage rods 319 are coaxial with the runners, and the linkage rods 319 are also rotatably connected to the base 101, and the rotation axis of the linkage rods 319 is perpendicular to the first direction; the transmission assembly is arranged between the slide 102 and the linkage rod 319, and is used to enable the slide 102 to drive the linkage rods 319 to rotate.

[0041] Specifically, the transmission rod 307 is fixedly connected to the slide 102; the transmission assembly includes a first magnetic wheel 320, a transmission gear 321, a transmission rack 322, a second magnetic wheel 323 and a transition magnetic wheel 324; the first magnetic wheel 320 is rotatably connected to the outer periphery of the transmission rod 307, and the rotation axis of the first magnetic wheel 320 is parallel to the rotation axis of the linkage rod 319; the transmission gear 321 is fixedly connected to the outer side of the first magnetic wheel 320; the transmission rack 322 extends along the first direction and meshes with the transmission gear 321, and the transmission rack 322 is also fixedly connected to the base 101; the second magnetic wheel 323 is fixedly connected to the outer periphery of the linkage rod 319; the transition magnetic wheel 324 is arranged between the first magnetic wheel 320 and the second magnetic wheel 323, the transition magnetic wheel 324 is rotatably connected to the base 101, and the rotation axis of the transition magnetic wheel 324 is perpendicular to the rotation axis of the linkage rod 319.

[0042] When the slide 102 moves along the first direction, the slide 102 synchronously drives the transmission rod 307 to move. During the movement of the transmission rod 307, the transmission gear 321 meshes and rolls along the transmission rack 322, so that the transmission gear 321 rotates. The rotation of the transmission gear 321 drives the first magnetic wheel 320 to rotate. The first magnetic wheel 320 drives the second magnetic wheel 323 to rotate through the transition magnetic wheel 324, so that the second magnetic wheel 323 drives the linkage rod 319 to rotate. The rotation of the linkage rod 319 drives the rotor of the first valve 318 to rotate, thereby closing the first valve 318, thereby allowing the fluid injected into the lower pressure chamber 3131 to remain, and further allowing the balance bar 201 to maintain a tilted state.

[0043] In some embodiments, see Figure 6 and Figure 9 The second control structure includes two second valves 325, two drive seats 326 and an identification component; the two second valves 325 are respectively arranged in the first return pipe 305 and the second return pipe 306, and the second valve 325 includes a valve core 3252 and a valve body 3251; the two drive seats 326 are fixedly connected to the valve body 3251 one by one, and a control cavity 3261 is opened in the drive seat 326, one end of the valve core 3252 extends into the control cavity 3261, the valve core 3252 is slidably connected to the drive seat 326, and the valve core 3252 moves in the direction close to or away from the valve body 3251; the identification component injects fluid into one of the control cavities 3261 according to the position of the slide 102.

[0044] Specifically, the identification component includes two storage tanks 327, two pistons 328 and two connecting pipes 329; the two storage tanks 327 are respectively arranged on both sides of the driving chamber 1011 along the first direction, and the storage tanks 327 are fixedly connected to the base 101; the two pistons 328 correspond one-to-one to the storage tanks 327, one end of the piston 328 extends into the storage tank 327, and the other end of the piston 328 has a force surface, the piston 328 is slidably connected to the storage tank 327, and the piston 328 moves along the central axis of the storage tank 327; the connecting pipe 329 connects the storage tanks 327 and the control chamber 3261 arranged on both sides of the driving chamber 1011 along the first direction.

[0045] Optionally, the piston 328 is reset by transfer of fluid pressure.

[0046] Optionally, the identification component further includes a second elastic member 330 fixed between the piston 328 and the storage tank 327. The second elastic member 330 has a preload force that causes the piston 328 to move away from the storage tank 327. The second elastic member 330 can be a spring or a spring rod.

[0047] When the slide 102 moves to the preset position along the first direction, the slide 102 squeezes the force-bearing surface of the corresponding piston 328. After being pressurized, the piston 328 slides in the storage tank 327, and presses the fluid pre-stored in the storage tank 327 into the corresponding control chamber 3261 through the connecting pipe 329. After the fluid enters the control chamber 3261, it pushes the valve core 3252 to move, so that the end of the valve core 3252 is separated from the sealing contact with the valve body 3251, thereby connecting the lifting chamber 2031 with the transfer box 301, and the fluid in the lifting chamber 2031 flows back to the transfer box 301, thereby changing the balance bar 201 to a horizontal state.

[0048] In some embodiments, see Figure 3 The displacement unit 20 further includes a plurality of triggering posts 206 slidably disposed on the inner support cover 1032 . The triggering posts 206 abut against the inner wall of the outer support cover 1031 , and the triggering posts 206 move radially along the inner support cover 1032 .

[0049] Multiple trigger posts 206 slidably mounted on the inner support cover 1032 evenly cover the inner wall of the outer support cover 1031, forming dense force transmission nodes and a multi-point distributed sensing mechanism. Regardless of whether the falling rock hits the center or edge area of ​​the protective cover 103, the impact signal can be accurately captured through the radial displacement of the nearest trigger post 206; the direct contact design between the trigger post 206 and the inner wall of the outer support cover 1031 can instantly diffuse the point-like impact force to the entire inner support cover 1032, avoiding local deformation that is not recognized and delaying the avoidance opportunity.

[0050] In some embodiments, see Figure 5The base 203 is fixedly connected to the base 101, and the end of the lifting rod 204 away from the base 203 is hinged with a compensation block 2041. The hinge axis between the lifting rod 204 and the compensation block 2041 is perpendicular to the moving direction of the lifting rod 204. The compensation block 2041 is slidably connected to the balance bar 201, and the compensation block 2041 moves along the length direction of the balance bar 201.

[0051] When fluid is injected into the lifting chamber 2031 on one side to push the lifting rod 204 to extend, the top end of the lifting rod 204 drives the compensation block 2041 to move through the hinge axis. Since the hinge axis between the compensation block 2041 and the lifting rod 204 is perpendicular to the moving direction of the lifting rod 204, the compensation block 2041 can rotate freely around the axis. At the same time, the compensation block 2041 itself is slidably connected to the balance rod 201 through a slide groove or guide rail, so that it can move horizontally along the length direction of the balance rod 201.

[0052] When lifting mast 204 is raised, compensation block 2041 first pivots to accommodate the initial tilt of balance mast 201. Then, under the continuous lifting force, it slides along balance mast 201, breaking down the vertical thrust into a lifting component and a horizontal adjustment component for balance mast 201. This process effectively absorbs angular deviations between lifting mast 204 and balance mast 201 caused by manufacturing tolerances, installation errors, or vibrations of base 101, thereby preventing localized stress concentration.

[0053] The implementation principle of the embodiment of the present application is: the protective cover 103 is located at Figure 4 Taking the leftmost side of the figure as an example, at this time, the first valve 318 is in the open state and the second valve 325 is in the closed state.

[0054] When the protective cover 103 is squeezed and the squeezing force on the protective cover 103 exceeds the preset value, the fluid in the deformation chamber 1034 is squeezed into the first area 311, and the fluid entering the first area 311 squeezes the partition 309 on the left, and the partition 309 on the left squeezes the fluid in the second area 310, so that the fluid in the second area 310 enters the lower pressure chamber 3131 on the left, so that the limit rod 314 on the left drives the corresponding limit block 308 to move downward, thereby the limit block 308 on the left is separated from the transmission rod 307; at the same time, the fluid entering the first area 311 enters the lifting chamber 2031 on the left through the first perfusion tube 303, and the fluid entering the lifting chamber 2031 on the left lifts the corresponding lifting rod 204, thereby lifting the left side of the balance rod 201, so that the slider 202 drives the protective cover 103 to slide from left to right.

[0055] As the protective cover 103 slides from left to right, the protective cover 103 drives the transmission rod 307 to move from left to right. The transmission rod 307 causes the transmission gear 321 to roll from left to right along the transmission rack 322, so that the transmission gear 321 rotates around its own central axis. The rotation of the transmission gear 321 drives the first magnetic wheel 320 to rotate. The first magnetic wheel 320 drives the second magnetic wheel 323 on the left to rotate through the transition magnetic wheel 324 on the left. The rotation of the second magnetic wheel 323 on the left drives the linkage rod 319 on the left to rotate, thereby turning the first valve 3 18 is gradually closed, and after the first magnetic wheel 320 leaves the magnetic range of the transition magnetic wheel 324 on the left, the first valve 318 is just closed at this time; after the first magnetic wheel 320 enters the magnetic range of the transition magnetic wheel 324 on the right, the first magnetic wheel 320 drives the second magnetic wheel 323 on the right to rotate through the transition magnetic wheel 324 on the right, and the second magnetic wheel 323 on the right drives the linkage rod on the right to rotate, thereby gradually opening the second valve 325. After the protective cover 103 moves to the far right, the second valve 325 is fully opened at this time.

[0056] When the protective cover 103 moves to the far right, the protective cover 103 squeezes the piston 328 on the right. The piston 328 on the right is squeezed so that the fluid in the storage tank 327 on the right flows to the control chamber 3261 on the left through the corresponding connecting pipe 329, thereby lifting the valve core 3252 on the left. After the valve core 3252 on the left is lifted, the fluid in the lifting chamber 2031 on the left flows back to the second area 310 through the first return pipe 305. At this time, the lifting rod 204 on the left falls, so that the balance rod 201 returns to the level.

[0057] The working principle of the protective cover 103 moving from right to left is the same and will not be described in detail in this application.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mine intrinsically safe camera with protection function, suitable for use as a camera, characterized in that: include: The protective unit includes a base, a slide slidably mounted on the base, and a protective cover fixed to the slide, wherein the base is provided with a driving cavity communicating with the outside, the slide moves along a first direction, the protective cover includes an outer support cover, an inner support cover, and an isolation cover sequentially sleeved from the outside to the inside, the inner support cover and the isolation cover enclosing a deformation cavity, and the isolation cover is used to install the camera; a shift unit disposed in the driving cavity, the shift unit comprising a balance bar, a slider slidably disposed on the balance bar, and a lifting assembly disposed at both ends of the balance bar along the first direction, the slider moving along the length direction of the balance bar, the slider being connected to the slide seat, the lifting assembly comprising a base having a lifting cavity and a lifting rod disposed in the lifting cavity, the lifting rod being slidably connected to the base, and the moving direction of the lifting rod being perpendicular to the first direction; The distribution unit is connected to the lifting cavity and the deformation cavity, and is used for distributing fluid into the two lifting cavities and resetting the fluid.

2. The mine-use intrinsically safe camera with protection function as claimed in claim 1, characterized in that: The distribution unit includes: A transfer box is disposed in the driving cavity and fixedly connected to the base; an overflow pipe connected to the transfer box and the deformation chamber; a perfusion mechanism comprising a first perfusion pipe connected to the transfer box and one of the lifting chambers, a second perfusion pipe connected to the transfer box and the other of the lifting chambers, and a first control structure for controlling the opening and closing of the first perfusion pipe and the second perfusion pipe; The reinjection mechanism includes a first reinjection pipe connected to the transfer box and one of the lifting chambers, a second reinjection pipe connected to the transfer box and the other lifting chamber, and a second control structure for controlling the opening and closing of the first reinjection pipe and the second reinjection pipe.

3. The intrinsically safe camera for mining with protection function as claimed in claim 2, characterized in that: The slider is fixedly connected with a synchronization rod; The allocation unit further includes a determination mechanism, which includes: a transmission rod connected to the slide, the transmission rod being provided with an avoidance groove for movement of the synchronization rod, wherein an extension direction of the avoidance groove is perpendicular to the first direction; Two limit blocks are provided on both sides of the driving cavity along the first direction, and the limit blocks have a first working state of abutting against the transmission rod and a second working state of being separated from the transmission rod; Two limiting structures corresponding to the limiting blocks one by one; When the force applied to the protective cover is less than a preset value, the limit assembly places the limit block in the first working state; when the force applied to the protective cover reaches a preset value, the limit assembly places the limit block in the second working state.

4. The intrinsically safe camera for mining with protection function as claimed in claim 3, characterized in that: The distribution unit further includes two partitions disposed opposite to each other in the transfer box, the two partitions dividing the transfer box into a second area, a first area, and a third area sequentially arranged along a second direction, the partitions being slidably connected to the transfer box along the second direction, the overflow pipe being in communication with the first area, the first infusion pipe and the second infusion pipe both being in communication with the first area, the inner diameter of the overflow pipe being larger than the inner diameters of the first infusion pipe and the second infusion pipe, the first return pipe being in communication with the second area, and the second return pipe being in communication with the third area; The limiting structure includes: A limit seat is provided with a downward pressure cavity, and the limit seat is fixedly connected to the base; a limiting rod disposed in the lower pressure chamber, the limiting rod being slidably connected to the limiting seat, the moving direction of the limiting rod being perpendicular to the first direction, and the limiting rod being fixedly connected to the limiting block; a deformable member, fixedly connected between the limiting rod and the limiting seat, and having a pre-tightening force for causing the limiting rod to move away from the limiting seat; The flow diversion component includes a first flow diversion pipe connected to one of the lower pressure chambers and the second area, and a second flow diversion pipe connected to the other lower pressure chamber and the third area.

5. The intrinsically safe camera for mining with protection function as claimed in claim 3, characterized in that: The first control structure includes: two first valves, respectively provided on the first perfusion pipe and the second perfusion pipe; Two linkage rods, fixedly connected to the runner of the first valve in a one-to-one correspondence, the linkage rods being coaxial with the runner and rotatably connected to the base, and the rotation axes of the linkage rods being perpendicular to the first direction; The transmission assembly is arranged between the slide and the linkage rod, and is used to enable the slide to drive the linkage rod to rotate.

6. The intrinsically safe camera for mining with protection function as claimed in claim 5, characterized in that: The transmission rod is fixedly connected to the slide seat; The transmission assembly comprises: a first magnetic wheel, rotatably connected to the outer periphery of the transmission rod, wherein the rotation axis of the first magnetic wheel is parallel to the rotation axis of the linkage rod; a transmission gear, fixedly connected to the outer periphery of the first magnetic wheel; a transmission rack extending along the first direction and meshing with the transmission gear, the transmission rack also being fixedly connected to the base; a second magnetic wheel, fixedly connected to the outer periphery of the linkage rod; The transition magnetic wheel is provided between the first magnetic wheel and the second magnetic wheel. The transition magnetic wheel is rotatably connected to the base. The rotation axis of the transition magnetic wheel is perpendicular to the rotation axis of the linkage rod.

7. The intrinsically safe camera for mining with protection function as claimed in claim 3, characterized in that: The second control structure includes: Two second valves, respectively provided on the first re-injection pipe and the second re-injection pipe, the second valve comprising a valve core and a valve body; Two drive seats are fixedly connected to the valve body in a one-to-one correspondence. A control cavity is defined in the drive seats. One end of the valve core extends into the control cavity. The valve core is slidably connected to the drive seats, and the valve core moves toward or away from the valve body. An identification component injects fluid into one of the control chambers according to the position of the slide.

8. The intrinsically safe camera for mining with protection function as claimed in claim 7, characterized in that: The identification component includes: Two material storage tanks are respectively arranged on both sides of the driving cavity along the first direction, and the material storage tanks are fixedly connected to the base; Two pistons, corresponding one to the storage tanks, one end of the piston extends into the storage tank, the other end of the piston has a force-bearing surface, the piston is slidably connected to the storage tank, and the piston moves along the central axis of the storage tank; Two communicating pipes are used to connect the material storage tank and the control chamber, which are arranged on both sides of the driving chamber along the first direction.

9. The intrinsically safe camera for mining with protection function as claimed in claim 3, characterized in that: The displacement unit further includes a plurality of triggering posts slidably arranged on the inner support cover, the triggering posts abutting against the inner wall of the outer support cover, and the triggering posts move along the radial direction of the inner support cover.

10. The intrinsically safe camera for mining with protection function as claimed in claim 1, characterized in that: The base is fixed to the pedestal, and a compensation block is hingedly connected to one end of the lifting rod away from the base. The hinge axis of the lifting rod and the compensation block is perpendicular to the moving direction of the lifting rod. The compensation block is slidably connected to the balance bar, and the compensation block moves along the length direction of the balance bar.

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