Adjustable mining flame-proof and intrinsic safety type camera

Abstract

The invention relates to an adjustable mining flame-proof and intrinsic safety type video camera, and relates to the technical field of mining video cameras, the adjustable mining flame-proof and intrinsic safety type video camera comprises a mounting bracket, a video camera body, a horizontal adjusting assembly, a vertical adjusting assembly, an operation bracket, a horizontal power assembly and a vertical power assembly, the horizontal adjusting assembly comprises an adjusting gear, an adjusting rack and a double-head telescopic cylinder, the vertical adjusting assembly comprises a single-head telescopic cylinder, a sliding block and a sliding rail, the horizontal power assembly and the vertical power assembly are of the same structure, the horizontal power assembly comprises a power part, a clutch part and a switching part, and the power part comprises a power cylinder body, a power sliding plate, a power screw and a hand wheel. The horizontal power assembly can drive the camera body to rotate in the horizontal plane through the fluid medium, and the vertical power assembly can drive the camera body to swing in the vertical plane through the fluid medium, so that the shooting angle of the camera body can be conveniently and safely adjusted. The camera adjusting device has the effect that the camera is convenient and safe to adjust.

Description

Technical Field

[0001] This application relates to the technical field of mine cameras, and in particular to an adjustable explosion-proof and intrinsically safe mine camera. Background Art

[0002] In mines, explosion-proof and intrinsically safe cameras are usually installed to monitor the flammable and explosive environment underground. On the one hand, it is used to ensure the personal safety of underground miners, and on the other hand, it is used to standardize the operation process of underground miners to improve the safety of underground operations.

[0003] In order to be able to flexibly adjust the shooting image of the camera, the existing cameras usually set up adjustment mechanisms. There are two types of adjustment mechanisms. One type of adjustment mechanism is manually adjusted and fixed by bolts. For example, a mine rotary water-air composite dust-proof camera and a dust-proof method disclosed in a Chinese patent with the publication number CN116801076A. The other type of adjustment mechanism is driven by a motor. For example, a mine camera with automatic dust removal disclosed in a Chinese patent with the publication number CN116582733A.

[0004] Although the above two types of camera adjustment mechanisms can both achieve the adjustment of the shooting angle of the camera, they both have usage defects. The first type of adjustment mechanism is safe to use, but there is a defect of inconvenient adjustment. The second type of adjustment mechanism is convenient to adjust, but the use of electrical components increases the safety risk of the adjustment mechanism causing an explosion, and there is a defect of poor safety. Therefore, there is an urgent need for an adjustable camera that is easy to adjust and has high safety. Summary of the Invention

[0005] In order to make the adjustment of the camera convenient and safe, this application provides an adjustable explosion-proof and intrinsically safe mine camera.

[0006] An adjustable explosion-proof and intrinsically safe mine camera provided by this application adopts the following technical solutions: An adjustable explosion-proof and intrinsically safe mine camera includes: An installation bracket, connected to the mine shaft wall and rotatably connected with an adjustment shaft; The camera body, hinged in the middle at one end of the adjustment shaft away from the installation bracket; A horizontal adjustment assembly, including an adjustment gear, an adjustment rack and a double-headed telescopic cylinder; A vertical adjustment assembly, including a single-headed telescopic cylinder, a slider and a slide rail; An operation bracket, connected to the mine shaft wall and arranged close to the ground of the mine; A horizontal power assembly is provided on an operation bracket and is used to drive a double-headed telescopic cylinder to expand and contract. The horizontal power assembly includes a power part, and the power part includes a power cylinder block, a power slide plate, and a power screw; A vertical power assembly is provided on the operation bracket and has the same structure as the horizontal power assembly. The vertical power assembly is used to drive a single-headed telescopic cylinder to expand and contract; Wherein, An adjusting gear is connected to an adjusting shaft. There are two adjusting racks symmetrically arranged at the center. The two adjusting racks are respectively located on both sides of the adjusting gear and are both meshed with the adjusting gear. The double-headed telescopic cylinder is connected to an installation bracket, and the two movable ends of the double-headed telescopic cylinder are respectively connected to the two adjusting racks; The power cylinder block is connected to the operation bracket. The power slide plate is hermetically and slidably arranged in the power cylinder block. The power slide plate divides the power cylinder block into two sealed chambers. The power screw rotates through the power cylinder block and is threaded through the power slide plate. One end of the power screw is connected with a handwheel; One of the sealed chambers is communicated with a first hose, and the first hose is communicated with the rodless chamber of the double-headed telescopic cylinder. The first hose allows a fluid medium to flow between the rodless chamber of the double-headed telescopic cylinder and the sealed chamber. The other sealed chamber is communicated with a second hose, and the second hose is communicated with the two rod chambers of the double-headed telescopic cylinder. The second hose allows a fluid medium to flow between the rod chambers of the double-headed telescopic cylinder and the sealed chamber; The movable end of the single-headed telescopic cylinder is hinged to one end of the camera body away from its own lens. The single-headed telescopic cylinder is hinged to a slider. The slider is slidably arranged in a slide rail. The slide rail is connected to the installation bracket, and the slide rail is circular; The first hose of the vertical power assembly is communicated with the rodless chamber of the single-headed telescopic cylinder. The first hose of the vertical power assembly allows a fluid medium to flow between the rodless chamber of the single-headed telescopic cylinder and the sealed chamber of the vertical power assembly. The second hose of the vertical power assembly is communicated with the rod chamber of the single-headed telescopic cylinder. The second hose of the vertical power assembly allows a fluid medium to flow between the rod chamber of the single-headed telescopic cylinder and the sealed chamber of the vertical power assembly.

[0007] Optionally, the horizontal power assembly further includes a clutch part and a switching part. The clutch part includes a clutch rod and a locking rod. One end of the clutch rod is rotatably connected to a clutch groove opened at the end of the power screw. The handwheel is sleeved on the other end of the clutch rod. The locking rod is slidably inserted into a locking groove opened at one end of the clutch rod close to the handwheel. A locking piece is arranged on the locking rod. The locking piece is used to lock the locking rod and the clutch rod or release the locking state between the locking rod and the clutch rod. The switching part is arranged in a relief groove opened on the clutch rod. When the locking rod is locked in the locking groove through the locking piece, the switching part can make the clutch rod rotatably connected to the power screw. When the locking piece releases the locking state between the locking rod and the clutch rod and the locking rod slides out of the locking groove, the switching part can make the clutch rod fixed to the power screw.

[0008] Optionally, the locking member includes a lock body and a key, the lock body is embedded on the locking rod, and the key is used to be inserted into the lock body. When the key is inserted into the lock body, the key can drive the lock plate of the lock body to be clamped into the lock plate clamping slot opened on the locking groove wall, or the key can drive the lock plate of the lock body to disengage from the lock plate clamping slot.

[0009] Optionally, the switching part includes a switching slide rod, a switching connecting rod, a switching card block and a switching spring. The switching slide rod is slidably penetrated on the clutch rod, one end of the switching slide rod is inserted into the give way groove and is connected to a switching head. At least two switching connecting rods are evenly arranged around the switching head, one end of the switching connecting rod is hinged to the switching head, at least two switching card blocks are arranged and are hinged to the other end of the switching connecting rod one by one. The switching card block is slidably penetrated on the groove wall of the give way groove and passes through the side wall of the clutch rod. A plurality of switching card slots are opened on the groove wall of the clutch groove around the clutch rod. The end of the switching slide rod away from the switching head is inserted into the locking groove and is connected to a switching plate. The switching spring is arranged between the switching plate and the groove bottom of the locking groove. The switching spring is used to drive the switching slide rod to drive the end of the switching card block to be clamped in the switching card slot.

[0010] Optionally, the sliding direction of the switch card block is perpendicular to the sliding direction of the switch slide rod, and when the end of the switch card block is engaged in the switch card slot, the length direction of the switch connecting rod is consistent with the sliding direction of the switch card block.

[0011] Optionally, a sleeve is connected to the hand wheel, and one end of the locking rod close to the bottom of the locking groove can be adapted to be slidably inserted into the sleeve.

[0012] Optionally, the end of the clutch rod is connected to a rotating block, and the rotating block is adapted to be rotatably disposed in a rotating groove opened at the bottom of the clutch groove.

[0013] Optionally, a purge assembly is also included. The purge assembly is arranged on the mounting bracket and connected to the adjusting gear. When the adjusting gear rotates, the purge assembly is used to purge the lens of the camera body.

[0014] Optionally, the purge assembly includes a purge box, a purge slide, a purge connecting rod and a purge hose, the purge box is connected to the mounting bracket, one end of the purge box is open, and the open end of the purge box faces the adjusting gear, the purge slide is sealed and slidably arranged in the purge box along a direction close to or away from the open end of the purge box, the purge connecting rod is located at the open end of the purge box, one end of the purge connecting rod is hinged to the purge slide, and the other end is rotatably connected to the adjusting gear, the rotational connection position of the purge connecting rod and the adjusting gear is set close to the edge of the adjusting gear, one end of the purge hose is connected to the end of the purge box away from the open end, and the other end is connected to the camera body, and the other end of the purge hose is set toward the lens of the camera body.

[0015] Optionally, the power cylinder body of the horizontal power assembly is made of a transparent material, and a scale is provided on the power cylinder body. The scale is arranged along the sliding direction of the power slide plate, and the scale can reflect the rotation angle of the adjustment shaft.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. An adjustable mine explosion-proof and intrinsically safe camera of the present application includes a mounting bracket, a camera body, a horizontal adjustment assembly, a vertical adjustment assembly, an operation bracket, a horizontal power assembly, and a vertical power assembly. Among them, the operator can operate the horizontal power assembly and the vertical power assembly on the operation bracket set near the ground. When it is necessary to adjust the shooting angle of the camera body, the operator can use a key to release the locking state of the locking rod and the clutch rod, so as to take out the locking rod from the locking groove. At this time, the switching slide rod can drive the switching block to be clamped in the switching card slot under the elastic force of the switching spring, so that the clutch rod and the power screw can be in a fixed state. The operator rotates the handwheel of the horizontal power assembly to drive the double-headed telescopic cylinder to act, so that the double-headed telescopic cylinder can drive the camera body to rotate in the horizontal plane. The operator rotates the handwheel of the vertical power assembly to drive the single-headed telescopic cylinder to act, so that the single-headed telescopic cylinder can drive the camera body to swing in the vertical plane. Therefore, in the flammable and explosive environment underground, the adjustment of the camera body can be more convenient than bolt adjustment and safer than electrical component adjustment, making the adjustment of the camera body convenient and safe. At the same time, the control of the key can control the adjustment control right of the camera body, making the management of the camera body adjustment more standardized and effectively preventing miners from independently adjusting the shooting angle of the camera body; 2. An adjustable mine explosion-proof and intrinsically safe camera of the present application further includes a purging assembly. Among them, the purging link rod can drive the purging slide plate to slide back and forth under the drive of the adjustment gear. During the reciprocating sliding of the purging slide plate, the airflow blown out through the purging hose can purge the lens on the camera body, so that the lens of the camera body can be cleaned without increasing the explosion risk. Description of the Drawings

[0017] Figure 1 is a schematic structural view of an embodiment of the present application; Figure 2 is a schematic structural view of the horizontal adjustment assembly; Figure 3 is a sectional view of the horizontal power assembly; Figure 4 is Figure 1 an enlarged view of part A in Figure 5 is a sectional view of the clutch part and the switching part; Figure 6 is a schematic structural view of the assembly relationship between the locking member and the lock piece card slot; Figure 7 Schematic diagram of the state where the switching card block is clamped in the switching card slot; Figure 8 It is Figure 1 The enlarged view of position B in

[0018] Explanation of reference numerals: 1. Installation bracket; 11. Adjustment shaft; 111. Rotating piece; 2. Camera body; 3. Horizontal adjustment assembly; 31. Adjustment gear; 32. Adjustment rack; 33. Double-headed telescopic cylinder; 331. Connecting rod; 4. Vertical adjustment assembly; 41. Single-headed telescopic cylinder; 42. Slide block; 43. Slide rail; 5. Operation bracket; 6. Horizontal power assembly; 61. Power part; 611. Power cylinder body; 6111. Scale; 612. Power slide plate; 613. Power screw; 6131. Clutch groove; 6132. Switching card slot; 6133. Rotating groove; 614. Handwheel; 6141. Sleeve; 615. First hose; 616. Second hose; 62. Clutch part; 621. Clutch rod; 6211. Locking groove; 6212. Yielding groove; 6213. Locking piece slot; 6214. Rotating block; 622. Locking rod; 623. Locking part; 6231. Lock body; 6232. Key; 63. Switching part; 631. Switching slide rod; 6311. Switching head; 6312. Switching plate; 632. Switching connecting rod; 633. Switching card block; 634. Switching spring; 7. Vertical power assembly; 8. Purge assembly; 81. Purge box; 82. Purge slide plate; 83. Purge connecting rod; 84. Purge hose; 841. Clamp. Detailed implementation manners

[0019] The following further describes the present application in detail with reference to the attached Figure 1-8 drawings.

[0020] The embodiment of the present application discloses an adjustable mine flameproof and intrinsically safe camera. Refer to Figure 1 and Figure 2 , an adjustable mine flameproof and intrinsically safe camera includes an installation bracket 1, a camera body 2, a horizontal adjustment assembly 3, a vertical adjustment assembly 4, an operation bracket 5, a horizontal power assembly 6 and a vertical power assembly 7.

[0021] The installation bracket 1 is fixedly connected to the shaft wall of the mine and is arranged near the top of the mine. The adjustment shaft 11 is rotatably connected to the top surface of the installation bracket 1. One end of the adjustment shaft 11 rotatably penetrates through the installation bracket 1. Two rotating pieces 111 are fixedly connected to the adjustment shaft 11. The two rotating pieces 111 are respectively located on both sides of the installation bracket 1 and are both attached to the installation bracket 1. The two rotating pieces 111 form a rotational connection structure between the adjustment shaft 11 and the installation bracket 1.

[0022] Refer to Figure 1, the middle part of the camera body 2 is hinged to the end of the adjustment shaft 11 away from the mounting bracket 1. The adjustment shaft 11 can drive the camera body 2 to rotate in the horizontal plane, and the camera body 2 can swing relative to the adjustment shaft 11 in the vertical plane.

[0023] The operation bracket 5 is fixedly connected to the shaft wall of the mine and is arranged close to the ground of the mine. The horizontal power assembly 6 and the vertical power assembly 7 are both arranged on the operation bracket 5 to facilitate the operator to operate the horizontal power assembly 6 and the vertical power assembly 7.

[0024] Refer to Figure 2 and Figure 3 , the horizontal adjustment assembly 3 is located below the mounting bracket 1. The horizontal adjustment assembly 3 includes an adjustment gear 31, an adjustment rack 32 and a double-headed telescopic cylinder 33. The horizontal power assembly 6 is used to drive the double-headed telescopic cylinder 33 to expand and contract. The horizontal power assembly 6 includes a power part 61, and the power part 61 includes a power cylinder block 611, a power slide plate 612 and a power screw 613.

[0025] Refer to Figure 2 , the adjustment gear 31 is fixedly connected to the adjustment shaft 11. There are two adjustment racks 32 arranged centrosymmetrically. The two adjustment racks 32 are respectively located on both sides of the adjustment gear 31 and are both meshed with the adjustment gear 31. The adjustment rack 32 is slidably arranged on the mounting bracket 1. The double-headed telescopic cylinder 33 is fixedly connected to the mounting bracket 1. The double-headed telescopic cylinder 33 has two independently expandable and contractible movable ends. Connecting rods 331 are fixedly connected to both movable ends of the double-headed telescopic cylinder 33. The two connecting rods 331 correspond to and are fixedly connected to the two adjustment racks 32 one by one. The double-headed telescopic cylinder 33 can drive the two adjustment racks 32 to slide synchronously.

[0026] Refer to Figure 1 and Figure 3 , the power cylinder block 611 is fixedly connected to the top surface of the operation bracket 5. The power slide plate 612 is hermetically slidably arranged in the power cylinder block 611. The power slide plate 612 divides the power cylinder block 611 into two sealed chambers. The power screw 613 is rotatably penetrated through the power cylinder block 611 and is threadedly penetrated through the power slide plate 612. The axial direction of the power screw 613 is the same as the sliding direction of the power slide plate 612. The rotating power screw 613 can make the power slide plate 612 slide. One end of the power screw 613 is connected with a handwheel 614 to facilitate the rotation of the power screw 613.

[0027] Refer to Figure 2 and Figure 3, one of the sealed chambers is connected to a first hose 615. The end of the first hose 615 away from the sealed chamber is connected to the rodless chamber of the double-headed telescopic cylinder 33. The first hose 615 allows a fluid medium to flow between the rodless chamber of the double-headed telescopic cylinder 33 and the sealed chamber; the other sealed chamber is connected to a second hose 616. The end of the second hose 616 away from the sealed chamber is connected to both rod chambers of the double-headed telescopic cylinder 33. The second hose 616 allows a fluid medium to flow between the rod chambers of the double-headed telescopic cylinder 33 and the sealed chamber. When the power slide plate 612 slides, it can squeeze the fluid medium to drive the double-headed telescopic cylinder 33 to act.

[0028] Referring to Figure 1 and Figure 4 , the vertical adjustment assembly 4 is located above the mounting bracket 1. The vertical adjustment assembly 4 includes a single-headed telescopic cylinder 41, a slider 42, and a slide rail 43. The vertical power assembly 7 has the same structure as the horizontal power assembly 6. The vertical power assembly 7 is used to drive the single-headed telescopic cylinder 41 to expand and contract.

[0029] The movable end of the single-headed telescopic cylinder 41 is hinged to the end of the camera body 2 away from its own lens. The single-headed telescopic cylinder 41 is hinged to the slider 42. The slider 42 is slidably arranged in the slide rail 43. The slide rail 43 is fixedly connected to the mounting bracket 1. The slide rail 43 is circular. When the camera body 2 rotates horizontally, the single-headed telescopic cylinder 41 can rotate with the camera body 2 by means of the slider 42 and the slide rail 43.

[0030] Referring to Figure 1 and Figure 3 , the first hose 615 of the vertical power assembly 7 is connected to the rodless chamber of the single-headed telescopic cylinder 41. The first hose 615 of the vertical power assembly 7 allows a fluid medium to flow between the rodless chamber of the single-headed telescopic cylinder 41 and the sealed chamber of the vertical power assembly 7; the second hose 616 of the vertical power assembly 7 is connected to the rod chamber of the single-headed telescopic cylinder 41. The second hose 616 of the vertical power assembly 7 allows a fluid medium to flow between the rod chamber of the single-headed telescopic cylinder 41 and the sealed chamber of the vertical power assembly 7. When the power slide plate 612 of the vertical power assembly 7 slides, it can squeeze the fluid medium to drive the single-headed telescopic cylinder 41 to act.

[0031] The fluid medium can be air or water. In this application, the fluid medium is preferably water.

[0032] During use, the operator can operate the horizontal power assembly 6 and the vertical power assembly 7 beside the operation bracket 5 close to the ground to adjust the shooting angle of the camera body 2.

[0033] When the operator rotates the handwheel 614 of the horizontal power assembly 6, the handwheel 614 can drive the power screw 613 to rotate, the power screw 613 can drive the power slide 612 to slide, and the power slide 612 can extrude the fluid medium to drive the double-headed telescopic cylinder 33 to act; when the fluid medium is squeezed into the rodless cavity of the double-headed telescopic cylinder 33, the fluid medium in the rod chamber of the double-headed telescopic cylinder 33 will be squeezed into the power cylinder body 611. At this time, the two movable ends of the double-headed telescopic cylinder 33 can extend synchronously to drive the two adjusting racks 32 to slide synchronously. The two adjusting racks 32 jointly drive the adjusting gear 31 to rotate forward, and the adjusting gear 31 drives the camera body 2 to rotate forward in the horizontal plane through the adjusting shaft 11; conversely, when the fluid medium is squeezed into the rod chamber of the double-headed telescopic cylinder 33, the fluid medium in the rodless cavity of the double-headed telescopic cylinder 33 will be squeezed into the power cylinder body 611. At this time, the two movable ends of the double-headed telescopic cylinder 33 can contract synchronously, and the double-headed telescopic cylinder 33 can drive the camera body 2 to rotate reversely in the horizontal plane, so that the shooting angle of the camera body 2 can be adjusted in the horizontal plane.

[0034] When the operator rotates the handwheel 614 of the vertical power assembly 7, the handwheel 614 can drive the power slide 612 to slide through the power screw 613, and the power slide 612 can extrude the fluid medium to drive the single-headed telescopic cylinder 41 to act; when the fluid medium is squeezed into the rodless cavity of the single-headed telescopic cylinder 41, the fluid medium in the rod chamber of the single-headed telescopic cylinder 41 will be squeezed into the power cylinder body 611. At this time, the movable end of the single-headed telescopic cylinder 41 can extend to drive the lens end of the camera body 2 to swing downward; conversely, when the fluid medium is squeezed into the rod chamber of the single-headed telescopic cylinder 41, the fluid medium in the rodless cavity of the single-headed telescopic cylinder 41 will be squeezed into the power cylinder body 611. At this time, the movable end of the single-headed telescopic cylinder 41 contracts to drive the lens end of the camera body 2 to swing upward, so that the shooting angle of the camera body 2 can be adjusted in the vertical plane.

[0035] Since the operation bracket 5 is arranged close to the ground, it is convenient for the operator to operate the handwheel 614 of the horizontal power assembly 6 and the handwheel 614 of the vertical power assembly 7, without the operator climbing to tighten the bolts. Thus, it is convenient for the operator to adjust the shooting angle of the camera body 2 in the horizontal and vertical directions; since the adjustment power of the camera body 2 comes from the extrusion force formed by the flow of the fluid medium and there is no need to use electrical components for driving, the whole process of adjusting the camera body 2 does not require the participation of power components. It is difficult to increase the safety risk of explosion when the camera body 2 is adjusted, which improves the safety of adjusting the camera body 2 in the flammable and explosive environment of the mine. Furthermore, the adjustment of the camera body 2 is convenient and safe.

[0036] Since the camera body 2 is adjusted in the horizontal plane by using the adjustment rack 32 to drive the adjustment gear 31 to rotate, compared with the adjustment method using the bolt sliding in the slide groove, the present application can make the camera body 2 360° fully adjustable in the horizontal plane.

[0037] Reference Figure 1 and Figure 3 In order to prevent the camera body 2 from being misoperated, such as when a miner accidentally pushes the hand wheel 614 to rotate while walking, so that the adjustment operation of the camera body 2 can be standardized, the horizontal power assembly 6 also includes a clutch part 62 and a switching part 63, and the clutch part 62 includes a clutch rod 621 and a locking rod 622.

[0038] Reference Figure 5 One end of the clutch rod 621 is rotatably connected to the clutch groove 6131 provided at the end of the power screw 613, and the hand wheel 614 is sleeved on the other end of the clutch rod 621, and the hand wheel 614 is fixedly connected to the clutch rod 621. The locking rod 622 is slidably inserted into the locking groove 6211 provided at one end of the clutch rod 621 close to the hand wheel 614, and the locking member 623 is provided on the locking rod 622, and the locking member 623 is used to lock the locking rod 622 and the clutch rod 621 or release the locking state of the locking rod 622 and the clutch rod 621.

[0039] The switching part 63 is arranged in the yield groove 6212 opened on the clutch rod 621. When the locking rod 622 is locked in the locking groove 6211 by the locking piece 623, the switching part 63 can make the clutch rod 621 and the power screw 613 rotationally connected. When the locking piece 623 releases the locking state of the locking rod 622 and the clutch rod 621, and the locking rod 622 slides out of the locking groove 6211, the switching part 63 can fix the clutch rod 621 and the power screw 613.

[0040] When it is necessary to adjust the shooting angle of the camera body 2, the locking piece 623 releases the locking state of the locking rod 622 and the clutch rod 621. At this time, the locking rod 622 can slide out of the locking groove 6211, and the switching part 63 can fix the clutch rod 621 and the power screw 613, and the camera body 2 can be adjusted by turning the hand wheel 614; after the adjustment of the camera body 2 is completed, the locking rod 622 is inserted into the locking groove 6211. At this time, the locking piece 623 can lock the locking rod 622 and the clutch rod 621, making it difficult for the locking rod 622 to escape from the locking groove 6211, and the switching part 63 can make the clutch rod 621 and the power screw 613 realize rotation connection, and at this time, the hand wheel 614 connected to the clutch rod 621 is difficult to drive the power screw 613 to rotate, so that when the camera body 2 does not need to be adjusted, the shooting angle of the camera body 2 will not be changed after the hand wheel 614 is misoperated.

[0041] Among them, referring to Figure 5 , a rotating block 6214 is fixedly connected to the end of the clutch lever 621. The rotating block 6214 is adaptively and rotatably arranged in a rotating groove 6133 opened at the bottom of the clutch groove 6131. Through the rotating block 6214 and the rotating groove 6133, the clutch lever 621 can not only rotate relative to the power screw 613, but also make it difficult for the clutch lever 621 to escape from the clutch groove 6131.

[0042] Furthermore, referring to Figure 5 and Figure 6 , the locking member 623 includes a lock body 6231 and a key 6232. The lock body 6231 is fixedly embedded on the locking rod 622. The key 6232 is used to be inserted into the lock body 6231. When the key 6232 is inserted into the lock body 6231, the key 6232 can drive the lock piece of the lock body 6231 to be clamped into a lock piece clamping groove 6213 opened on the groove wall of the locking groove 6211, or the key 6232 can drive the lock piece of the lock body 6231 to disengage from the lock piece clamping groove 6213.

[0043] When it is necessary to lock the locking rod 622 and the clutch lever 621, insert the key 6232 into the lock body 6231. Rotating the key 6232 can make the lock piece of the lock body 6231 be clamped into the lock piece clamping groove 6213, so that the locking rod 622 and the clutch lever 621 can be locked. And after locking the locking rod 622 and the clutch lever 621, the key 6232 can be removed from the lock body 6231, so that the locked state of the locking rod 622 and the clutch lever 621 is not easily changed, that is, it is difficult for miners to operate the lock body 6231 independently when working underground, so that the camera body 2 can be adjusted normatively.

[0044] When it is necessary to release the locking of the locking rod 622 and the clutch lever 621, insert the key 6232 into the lock body 6231. Rotating the key 6232 can make the lock piece of the lock body 6231 disengage from the lock piece clamping groove 6213, so that the locking rod 622 and the clutch lever 621 can be released from the locked state.

[0045] Specifically, referring to Figure 5 and Figure 7 , the switching part 63 includes a switching slide rod 631, a switching link 632, a switching block 633 and a switching spring 634.

[0046] The switching slider 631 is slidably disposed through the clutch rod 621. One end of the switching slider 631 penetrates into the relief groove 6212. A switching head 6311 is fixedly connected to the end of the switching slider 631 located within the relief groove 6212. Two switching link rods 632 are evenly arranged around the switching head 6311. The two switching link rods 632 are symmetrically arranged. One end of the switching link rod 632 is hinged to the switching head 6311. Two switching blocks 633 are provided and are respectively hinged to the ends of the switching link rods 632 away from the switching head 6311. The switching blocks 633 are slidably disposed through the groove wall of the relief groove 6212 and penetrate through the side wall of the clutch rod 621.

[0047] A plurality of switching card slots 6132 are formed around the clutch rod 621 on the groove wall of the clutch groove 6131. The switching card slots 6132 are used for clamping the switching blocks 633. The end of the switching slider 631 away from the switching head 6311 penetrates into the locking groove 6211. A switching plate 6312 is fixedly connected to the end of the switching slider 631 away from the switching head 6311. A switching spring 634 is fixedly disposed between the switching plate 6312 and the bottom of the locking groove 6211. The switching spring 634 is used to drive the switching slider 631 to drive the end of the switching block 633 to be clamped within the switching card slot 6132.

[0048] When the locking rod 622 is inserted into the locking groove 6211 and is in a locked state with the clutch rod 621, the locking rod 622 can push the switching slider 631 to slide, so that the switching slider 631 can slide away from the notch of the locking groove 6211. At this time, the switching slider 631 can drive the two switching link rods 632 to swing towards each other. The two switching link rods 632 synchronously drive the two switching blocks 633 to slide towards each other, so that the switching blocks 633 can be disengaged from the switching card slots 6132, thereby enabling the clutch rod 621 and the power screw 613 to be switched to a rotational connection state.

[0049] After the locking rod 622 is disengaged from the locking groove 6211, the switching spring 634 can drive the switching slider 631 to slide close to the notch of the locking groove 6211 by its elastic force. At this time, the switching slider 631 can drive the two switching link rods 632 to swing away from each other. The two switching link rods 632 synchronously drive the two switching blocks 633 to slide away from each other, so that the switching blocks 633 can be clamped into the switching card slots 6132, thereby enabling the clutch rod 621 and the power screw 613 to be switched to a fixed connection state.

[0050] Among them, under the elastic force of the switching spring 634, when the two switching blocks 633 start to slide away from each other, they may first abut against the groove wall of the clutch groove 6131. At this time, it is necessary to rotate the clutch lever 621 so that the switching blocks 633 slide along the groove wall of the clutch groove 6131 and then snap into the switching slot 6132. Thus, when the switching blocks 633 are not directly opposite to the switching slot 6132, the switching blocks 633 can still be snapped into the switching slot 6132 by rotating the clutch lever 621.

[0051] Further, referring to Figure 7 , the sliding direction of the switching block 633 is perpendicular to the sliding direction of the switching slide bar 631. When the end of the switching block 633 is snapped into the switching slot 6132, the length direction of the switching link 632 is consistent with the sliding direction of the switching block 633.

[0052] Since the length direction of the switching link 632 is consistent with the sliding direction of the switching block 633, when the switching block 633 is disengaged from the switching slot 6132, the switching block 633 can exert a force on the switching link 632 along the length direction of the switching link 632, so that an inward force is formed between the two switching links 632. Thus, when no external force perpendicular to the sliding direction of the switching block 633 is applied, the switching block 633 is not easily disengaged from the switching slot 6132, making the fixed state of the clutch lever 621 and the power screw 613 stable and reliable.

[0053] Referring to Figure 5 and Figure 7 , in order to facilitate the rotation of the handwheel 614, a sleeve 6141 is connected to the handwheel 614. One end of the locking rod 622 near the bottom of the locking groove 6211 can be slidably inserted into the sleeve 6141. When the power screw 613 is rotated by the handwheel 614, the end of the locking rod 622 that has slid out of the locking groove 6211 is inserted into the sleeve 6141. The operator can drive the handwheel 614 to rotate by grasping the locking rod 622. Compared with directly grasping the handwheel 614 to rotate the power screw 613, the method of rotating the handwheel 614 by the locking rod 622 to rotate the power screw 613 is more convenient.

[0054] Referring to Figure 1 and Figure 2 , in order to facilitate the cleaning of the lens of the camera body 2 without increasing the explosion risk, an adjustable mine explosion-proof and intrinsically safe camera of the present application further includes a purging assembly 8. The purging assembly 8 is arranged on the mounting bracket 1 and is connected to the adjusting gear 31. When the adjusting gear 31 rotates, the purging assembly 8 is used to purge the lens of the camera body 2.

[0055] When the adjusting rack 32 drives the adjusting gear 31 to adjust the camera body 2, in addition to driving the adjusting shaft 11 to rotate, the adjusting gear 31 can also drive the purging assembly 8 to purge the lens of the camera body 2, so as to realize the purging and cleaning of the lens of the camera body 2. At the same time, using the adjusting gear 31 as the driving source will not increase the explosion risk.

[0056] Specifically, when there is no need to adjust the camera body 2, the lens of the camera body 2 can also be cleaned by driving the adjusting gear 31 with the adjusting rack 32. After the cleaning is completed, the shooting angle of the camera body 2 can be reset.

[0057] Specifically, referring to Figure 2 , the purging assembly 8 includes a purging box 81, a purging slide plate 82, a purging connecting rod 83 and a purging hose 84.

[0058] Referring to Figure 1 and Figure 2 , the purging box 81 is fixedly connected to the mounting bracket 1. One end of the purging box 81 is open, and the open end of the purging box 81 faces the adjusting gear 31. The purging slide plate 82 is hermetically slidably arranged in the purging box 81 along the direction of approaching or departing from the open end of the purging box 81. The purging connecting rod 83 is located at the open end of the purging box 81. One end of the purging connecting rod 83 is hinged to the purging slide plate 82, and the other end is rotatably connected to the adjusting gear 31. The rotational connection position of the purging connecting rod 83 and the adjusting gear 31 is arranged close to the edge of the adjusting gear 31. One end of the purging hose 84 is communicated with the end of the purging box 81 far from the open end, and the other end is connected to the camera body 2. The other end of the purging hose 84 faces the lens of the camera body 2.

[0059] Among them, referring to Figure 2 and Figure 8 , clamping rings 841 are connected to both the end of the purging hose 84 far from the purging box 81 and the bottom end of the camera body 2. And the number of the clamping rings 841 connected to the bottom end of the camera body 2 is two. The clamping rings 841 are bolted to the camera body 2, sleeved on the purging hose 84, and fixedly connected to the purging hose 84. The clamping ring 841 sleeved on the end of the purging hose 84 enables the end of the purging hose 84 to face the lens of the camera body 2.

[0060] When the adjusting gear 31 rotates, since the rotational connection position between the purging connecting rod 83 and the adjusting gear 31 is arranged near the edge of the adjusting gear 31, the adjusting gear 31 can drive the purging connecting rod 83 to swing. The swinging purging connecting rod 83 can drive the purging slide plate 82 to reciprocate. When the purging slide plate 82 slides close to the open end of the purging box 81, the purging slide plate 82 can suck air into the purging box 81 through the purging hose 84. When the purging slide plate 82 slides away from the open end of the purging box 81, the purging slide plate 82 can blow the air in the purging box 81 out through the purging hose 84. Under the guiding action of the purging hose 84, the airflow blown out by the purging hose 84 can purge the dust accumulated on the lens of the camera body 2, thereby facilitating the cleaning of the lens of the camera body 2 by means of the driving force formed by the rotation of the adjusting gear 31.

[0061] Referring to Figure 1 , in order to facilitate the resetting of the shooting angle of the camera body 2 after purging the lens of the camera body 2, the power cylinder body 611 of the horizontal power assembly 6 is made of a transparent material, and a scale 6111 is provided on the power cylinder body 611. The scale 6111 is arranged along the sliding direction of the power slide plate 612, and the scale 6111 can reflect the rotation angle of the adjusting shaft 11.

[0062] Among them, the transparent material of the power cylinder body 611 can be glass or plastic.

[0063] During purging, first record the position of the scale 6111 where the power slide plate 612 is located, and then rotate the power screw 613 to drive the adjusting gear 31 to rotate. The adjusting gear 31 drives the purging slide plate 82 to slide to purge the lens of the camera body 2. After the cleaning of the lens of the camera body 2 is completed, adjust the position of the power slide plate 612 back to the original position of the scale 6111 where the power slide plate 612 is located through the power screw 613, so that the resetting of the camera body 2 is convenient and accurate.

[0064] The implementation principle of an adjustable mining flameproof and intrinsically safe camera in an embodiment of this application is as follows: During use, when it is necessary to adjust the shooting angle of the camera body 2, use the key 6232 to release the locking state between the locking rod 622 and the clutch rod 621, then slide out the locking rod 622, and insert the end of the locking rod 622 into the sleeve 6141. Rotate the handwheel 614 through the locking rod 622 to drive the power screw 613 to rotate. The power screw 613 drives the power slide 612 to slide. The power slide 612 squeezes the flow of the fluid medium. The fluid medium of the horizontal power assembly 6 drives the double-headed telescopic cylinder 33 to act. The double-headed telescopic cylinder 33 drives the camera body 2 to rotate through the adjusting rack 32, the adjusting gear 31, and the adjusting shaft 11. The fluid medium of the vertical power assembly 7 drives the single-headed telescopic cylinder 41 to act. The single-headed telescopic cylinder 41 drives the camera body 2 to swing, so that the shooting angle of the camera body 2 is not likely to increase the safety risk of explosion under the condition of being easy to adjust. Thus, in the underground flammable and explosive environment, the shooting angle of the camera body 2 is adjusted through the fluid medium, so that the adjustment of the camera body 2 can be convenient and safe.

[0065] The above are all preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An adjustable explosion-proof and intrinsically safe camera for mining, characterized in that: include: A mounting bracket (1) is connected to the wall of the mine and is rotatably connected to an adjusting shaft (11); A camera body (2) whose middle part is hinged to an end of the adjustment shaft (11) away from the mounting bracket (1); A horizontal adjustment assembly (3), comprising an adjustment gear (31), an adjustment rack (32) and a double-head telescopic cylinder (33); A vertical adjustment assembly (4), comprising a single-head telescopic cylinder (41), a slide block (42) and a slide rail (43); An operating bracket (5) is connected to the wall of the mine and is arranged close to the ground of the mine; A horizontal power assembly (6) is arranged on the operating bracket (5) and is used to drive the double-head telescopic cylinder (33) to extend and retract. The horizontal power assembly (6) includes a power unit (61), and the power unit (61) includes a power cylinder body (611), a power slide plate (612) and a power screw rod (613); A vertical power assembly (7) is arranged on the operating bracket (5) and has the same structure as the horizontal power assembly (6). The vertical power assembly (7) is used to drive the single-head telescopic cylinder (41) to telescope; in, The adjusting gear (31) is connected to the adjusting shaft (11); two adjusting racks (32) are centrally symmetrically arranged; the two adjusting racks (32) are respectively located on both sides of the adjusting gear (31) and are both meshed with the adjusting gear (31); the double-headed telescopic cylinder (33) is connected to the mounting bracket (1); and the two movable ends of the double-headed telescopic cylinder (33) are respectively connected to the two adjusting racks (32); The power cylinder body (611) is connected to the operating bracket (5), the power slide plate (612) is sealingly and slidably arranged in the power cylinder body (611), the power slide plate (612) divides the power cylinder body (611) into two sealed chambers, the power screw rod (613) is rotatably arranged on the power cylinder body (611), and is threadedly arranged on the power slide plate (612), and one end of the power screw rod (613) is connected to a hand wheel (614); One of the sealed chambers is connected to a first hose (615), the first hose (615) is connected to the rodless chamber of the double-headed telescopic cylinder (33), and the first hose (615) allows a fluid medium to flow between the rodless chamber of the double-headed telescopic cylinder (33) and the sealed chamber; the other sealed chamber is connected to a second hose (616), the second hose (616) is connected to both of the rod chambers of the double-headed telescopic cylinder (33), and the second hose (616) allows a fluid medium to flow between the rod chamber of the double-headed telescopic cylinder (33) and the sealed chamber; The movable end of the single-head telescopic cylinder (41) is hinged to the end of the camera body (2) away from the camera lens, the single-head telescopic cylinder (41) is hinged to the slider (42), the slider (42) is slidably arranged in the slide rail (43), the slide rail (43) is connected to the mounting bracket (1), and the slide rail (43) is in a circular ring shape; The first hose (615) of the vertical power assembly (7) is connected to the rodless chamber of the single-head telescopic cylinder (41), and the first hose (615) of the vertical power assembly (7) allows a fluid medium to flow between the rodless chamber of the single-head telescopic cylinder (41) and the sealed chamber of the vertical power assembly (7). The second hose (616) of the vertical power assembly (7) is connected to the rod chamber of the single-head telescopic cylinder (41), and the second hose (616) of the vertical power assembly (7) allows a fluid medium to flow between the rod chamber of the single-head telescopic cylinder (41) and the sealed chamber of the vertical power assembly (7).

2. The adjustable explosion-proof and intrinsically safe camera for mining according to claim 1, characterized in that: The horizontal power assembly (6) further comprises a clutch portion (62) and a switching portion (63), wherein the clutch portion (62) comprises a clutch rod (621) and a locking rod (622), wherein one end of the clutch rod (621) is rotatably connected to a clutch groove (6131) provided at the end of the power screw rod (613), the hand wheel (614) is sleeved on the other end of the clutch rod (621), and the locking rod (622) is slidably inserted into a locking groove (6211) provided at one end of the clutch rod (621) close to the hand wheel (614), and a locking member (623) is provided on the locking rod (622), and the locking member (623) is used to lock the locking rod (622) and the clutch rod (621). ) or releases the locking state of the locking rod (622) and the clutch rod (621), the switching part (63) is arranged in a giving way groove (6212) provided on the clutch rod (621), when the locking rod (622) is locked in the locking groove (6211) by the locking member (623), the switching part (63) can make the clutch rod (621) and the power screw rod (613) rotationally connected, when the locking member (623) releases the locking state of the locking rod (622) and the clutch rod (621), and the locking rod (622) slides out of the locking groove (6211), the switching part (63) can fix the clutch rod (621) and the power screw rod (613).

3. The adjustable explosion-proof and intrinsically safe camera for mining according to claim 2, characterized in that: The locking member (623) comprises a lock body (6231) and a key (6232); the lock body (6231) is embedded in the locking rod (622); the key (6232) is used to be inserted into the lock body (6231); when the key (6232) is inserted into the lock body (6231), the key (6232) can drive the lock plate of the lock body (6231) to be snapped into a lock plate snapping groove (6213) provided on the groove wall of the locking groove (6211), or the key (6232) can drive the lock plate of the lock body (6231) to be detached from the lock plate snapping groove (6213).

4. The adjustable explosion-proof and intrinsically safe camera for mining according to claim 2, characterized in that: The switching part (63) comprises a switching slide rod (631), a switching connecting rod (632), a switching block (633) and a switching spring (634); the switching slide rod (631) is slidably arranged on the clutch rod (621); one end of the switching slide rod (631) is inserted into the yielding groove (6212) and is connected to a switching head (6311); at least two switching connecting rods (632) are evenly arranged around the switching head (6311); one end of the switching connecting rod (632) is hinged to the switching head (6311); at least two switching blocks (633) are arranged and are hinged to the other end of the switching connecting rod (632) in a one-to-one correspondence; the switching blocks (633) are arranged on the switching connecting rod (632) and are hinged to the other end of the switching connecting rod (632) in a one-to-one correspondence; The switch slide bar (633) is slidably arranged on the groove wall of the give way groove (6212) and passes through the side wall of the clutch rod (621); a plurality of switching slots (6132) are arranged on the groove wall of the clutch groove (6131) around the clutch rod (621); one end of the switching slide bar (631) away from the switching head (6311) is inserted into the locking groove (6211) and is connected with a switching plate (6312); a switching spring (634) is arranged between the switching plate (6312) and the groove bottom of the locking groove (6211); the switching spring (634) is used to drive the switching slide bar (631) to drive the end of the switching card block (633) to be clamped in the switching slot (6132).

5. The adjustable explosion-proof and intrinsically safe camera for mining according to claim 4, characterized in that: The sliding direction of the switching block (633) is perpendicular to the sliding direction of the switching slide rod (631). When the end of the switching block (633) is engaged in the switching slot (6132), the length direction of the switching connecting rod (632) is consistent with the sliding direction of the switching block (633).

6. The adjustable explosion-proof and intrinsically safe camera for mining according to claim 2, characterized in that: The hand wheel (614) is connected to a sleeve (6141), and one end of the locking rod (622) close to the bottom of the locking groove (6211) can be adapted to be slidably inserted into the sleeve (6141).

7. The adjustable explosion-proof and intrinsically safe camera for mining according to claim 2, characterized in that: The end of the clutch rod (621) is connected to a rotating block (6214), and the rotating block (6214) is adapted to be rotatably arranged in a rotating groove (6133) opened at the bottom of the clutch groove (6131).

8. The adjustable explosion-proof and intrinsically safe camera for mining according to claim 1, characterized in that: It also includes a purge assembly (8), which is arranged on the mounting bracket (1) and connected to the adjusting gear (31). When the adjusting gear (31) rotates, the purge assembly (8) is used to purge the lens of the camera body (2).

9. The adjustable explosion-proof and intrinsically safe camera for mining according to claim 8, characterized in that: The purge assembly (8) comprises a purge box (81), a purge slide plate (82), a purge connecting rod (83) and a purge hose (84); the purge box (81) is connected to the mounting bracket (1); one end of the purge box (81) is open, and the open end of the purge box (81) faces the adjustment gear (31); the purge slide plate (82) is sealed and slidably arranged in the purge box (81) in a direction close to or away from the open end of the purge box (81); the purge connecting rod (83) is located in the purge box (81) ), one end of the purge connecting rod (83) is hinged on the purge slide plate (82), and the other end is rotatably connected to the adjusting gear (31), and the rotational connection position between the purge connecting rod (83) and the adjusting gear (31) is arranged near the edge of the adjusting gear (31), one end of the purge hose (84) is connected to the end of the purge box (81) away from the open end, and the other end is connected to the camera body (2), and the other end of the purge hose (84) is arranged toward the lens of the camera body (2).

10. The adjustable explosion-proof and intrinsically safe camera for mining according to claim 8, characterized in that: The power cylinder body (611) of the horizontal power assembly (6) is made of a transparent material, and a scale (6111) is provided on the power cylinder body (611). The scale (6111) is provided along the sliding direction of the power slide plate (612), and the scale (6111) can reflect the rotation angle of the adjustment shaft (11).

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