A lightweight explosion-proof pan / tilt

Abstract

The utility model relates to the technical field of explosion-proof pan-tilt platforms, and discloses a lightweight explosion-proof pan-tilt platform, comprising a base, the bottom of the base is fixedly connected with a bottom cover, the top of the bottom cover is fixedly installed with a horizontal transmission shell by bolts, the interior of the horizontal transmission shell is installed with a horizontal transmission worm gear assembly, the interior of the horizontal transmission worm gear assembly is installed with a horizontal transmission shaft, through a first explosion-proof joint surface, a fourth explosion-proof joint surface, a second explosion-proof joint surface, and a third explosion-proof joint surface, it is convenient to install and meets the explosion-proof design requirements, thereby preventing the flame generated by the explosion from being transmitted to the outside of the equipment, thereby causing an environmental explosion, these two parts are designed to strictly install the explosion-proof surface length and gap design required by the explosion-proof design standard, and at the same time, by forming the explosion-proof joint surface, the weight and volume of the parts in the equipment are reduced, and the production cost is reduced. When it can be used for the explosion-proof pan-tilt platform, the weight reduction design of the explosion-proof pan-tilt platform greatly reduces the installation difficulty of the pan-tilt platform.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof pan / tilt platforms, and more specifically, to a lightweight explosion-proof pan / tilt platform. Background Art

[0002] The explosion-proof pan / tilt head is a flameproof electrical equipment and is a special device that can carry a camera for horizontal transmission and pitch rotation.

[0003] At present, the explosion-proof pan / tilt head is equipped with a horizontal transmission, vertical transmission and rotation mechanism. Since the horizontal transmission, vertical transmission and rotation mechanism are placed in a cavity, this results in low space utilization of the equipment, heavy weight, large size, and inconvenient production and installation. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a lightweight explosion-proof pan / tilt platform.

[0005] The utility model provides a lightweight explosion-proof pan / tilt platform adopts the following technical solutions:

[0006] A lightweight explosion-proof pan / tilt according to claim 1, comprising a base, the bottom of the base being fixedly connected to a bottom cover, the top of the bottom cover being fixedly installed with a horizontal transmission housing by bolts, the interior of the horizontal transmission housing being installed with a horizontal transmission worm gear assembly, the interior of the horizontal transmission worm gear assembly being installed with a horizontal transmission rotating shaft, one end of the horizontal transmission rotating shaft extending to the outside of the horizontal transmission housing being fixedly connected with a horizontal transmission rotating cavity by bolts, a first vertical transmission housing being fixedly installed inside one side of the horizontal transmission rotating cavity by bolts, a vertical rotation worm gear assembly being installed inside the first vertical transmission housing, the interior of the vertical rotation worm gear assembly being installed with a first vertical transmission rotating shaft, the first vertical transmission rotating shaft extending to one end of the first vertical transmission housing being fixedly connected with a light cylinder, the surface of the first vertical transmission rotating shaft being rotationally connected to the interior of a vertical transmission left bracket, and the vertical transmission left bracket being fixedly connected to the horizontal transmission rotating cavity by bolts;

[0007] A coupling is connected to the other side of the first vertical transmission shaft, and the other end of the coupling is connected to the second vertical transmission shaft. The outer surface of the second vertical transmission shaft is rotatably connected to a vertical rotation right bracket, and the vertical rotation right bracket is fixedly connected to the horizontal transmission rotation cavity by bolts. One end of the second vertical transmission shaft extending to the horizontal transmission rotation cavity is fixedly connected to a thermal imaging tube.

[0008] Preferably, the horizontal transmission worm gear assembly includes a horizontal transmission worm, the surface of the horizontal transmission worm is rotatably connected to the horizontal transmission housing, the surface of the horizontal transmission worm is meshingly connected with a horizontal transmission worm wheel, the interior of the horizontal transmission worm wheel is fixedly connected to the surface of the horizontal transmission shaft, and the horizontal transmission shaft is installed in a horizontal transmission copper sleeve, the surface of the horizontal transmission copper sleeve is installed inside the horizontal transmission housing, the interior of the horizontal transmission copper sleeve is rotatably connected to the surface of the horizontal transmission shaft, and the horizontal transmission worm extends to one end of the horizontal transmission housing and is connected to a driving device, and the driving device is used to drive the horizontal transmission worm to rotate.

[0009] Preferably, the vertically rotating worm gear assembly includes a vertical transmission worm, the surface of the vertical transmission worm is rotatably connected to the interior of the first vertical transmission housing, the surface of the first vertical transmission housing is meshingly connected with a vertical transmission worm wheel, the interior of the vertical transmission worm wheel is fixedly connected to the surface of the first vertical transmission shaft, the vertical transmission worm wheel is installed on a vertical transmission copper sleeve, both ends of the first vertical transmission shaft are rotatably connected to the first vertical transmission bearing, and the first vertical transmission bearing is fixedly connected to the interior of the first vertical transmission housing, and the vertical transmission worm extends to one end of the first vertical transmission housing and is connected to a driving mechanism.

[0010] Preferably, the horizontal transmission rotating cavity includes a rotating seat and an outer shell, the rotating seat and the outer shell are fixed together by bolts, the inner surface of the rotating seat and the outer surface of the horizontal transmission shaft are both provided with explosion-proof surfaces, the inner explosion-proof surface of the rotating seat and the outer explosion-proof surface of the horizontal transmission shaft cooperate with each other to form a fourth explosion-proof joint surface, and a horizontal transmission oil seal is installed between the rotating seat and the horizontal transmission housing.

[0011] Preferably, a first fixing hole is provided on a side of the coupling close to the first vertical transmission shaft and a portion overlapping with the first vertical transmission shaft, and a first pin connecting the coupling and the first vertical transmission shaft is threadedly connected inside the first fixing hole, a second fixing hole is provided on a side of the coupling and a portion overlapping with the second vertical transmission shaft, and a second pin connecting the coupling and the second vertical transmission shaft is threadedly connected inside the second fixing hole, a magnetic encoding chip is installed inside the first vertical transmission shaft, and a magnet is provided on one side of the magnetic encoding chip.

[0012] Preferably, a visible light movement is installed inside the light tube, a front cover is fixedly connected to the front side of the light tube, a first tempered glass is fixedly connected to the inner center of the front cover, a wiper motor is fixedly connected to the inside of the light tube, the output shaft of the wiper motor is drivingly connected to the wiper shaft, an optical coupler baffle is installed at the connection between the wiper shaft and the output shaft of the wiper motor, an optical coupler fixedly connected to the light tube is assembled directly opposite the optical coupler baffle, a wiper bearing is rotatably connected to the surface of the wiper shaft, and a rainwater copper sleeve is fixedly connected to the surface of the wiper bearing, the surface of the rainwater copper sleeve is fixedly connected to the light tube, a second tempered glass is fixedly connected to one end of the wiper shaft extending to the light tube, and a wiper oil seal for increasing the sealing is installed between the second tempered glass and the wiper shaft.

[0013] Preferably, a fill light is fixedly connected to the bottom of the light tube, and a third tempered glass is fixedly connected to the front of the fill light.

[0014] Preferably, a thermal imaging movement is installed inside the thermal imaging tube, a thermal imaging lens is fixedly connected to the front of the thermal imaging tube, a germanium window is installed on the back of the thermal imaging lens, and a structural mounting part is fixedly connected to the germanium window by bolts, the structural mounting part is fixedly connected to the thermal imaging tube, a rear side of the thermal imaging tube is fixedly connected to a back cover by bolts, an inner side of the structural mounting part and an outer side of the germanium window are both provided with explosion-proof surfaces, and the explosion-proof surface inside the structural mounting part and the explosion-proof surface outside the germanium window form a third explosion-proof joint surface.

[0015] Preferably, an empty cylinder is fixedly connected to the surface of the smooth cylinder, and the empty cylinder is sleeved on the outer surface of one end of the first vertical transmission shaft. The empty cylinder is inserted into the vertical transmission left bracket, and a first vertical transmission oil seal is installed between the vertical transmission left bracket and the empty cylinder. The inner surface of the empty cylinder and the outer surface of the first vertical transmission shaft are both provided with explosion-proof surfaces, and the explosion-proof surface on the inner surface of the vertical transmission left bracket and the explosion-proof surface on the outer surface of the first vertical transmission shaft cooperate with each other to form a first explosion-proof joint surface.

[0016] Preferably, the outer surface of the thermal imaging tube is fixedly connected by a connecting tube, and the connecting tube is sleeved on the outer surface of one end of the second vertical transmission shaft. The connecting tube is inserted into the vertical rotation right bracket, and a second vertical transmission oil seal is installed between the connecting tube and the vertical rotation right bracket. The inner surface of the connecting tube and the outer surface of the second vertical transmission shaft are both provided with explosion-proof surfaces, and the explosion-proof surface of the inner surface of the connecting tube and the explosion-proof surface of the outer surface of the second vertical transmission shaft cooperate with each other to form a second explosion-proof joint surface.

[0017] In summary, the utility model includes the following beneficial technical effects:

[0018] 1. The utility model uses a rotating seat, a horizontal transmission shell, a bottom cover, an outer shell, a first vertical transmission shell, a vertical transmission left bracket, a vertical rotation right bracket, and an outer shell. Each of the above components is fixed together by bolts to form a first explosion-proof joint surface, a fourth explosion-proof joint surface, a second explosion-proof joint surface, and a third explosion-proof joint surface. It is convenient to install and meets the explosion-proof design requirements, thereby preventing the flame generated by the explosion from being transmitted to the outside of the equipment, thereby causing an environmental explosion. The two parts are designed to strictly follow the explosion-proof surface length and gap design required by the explosion-proof design standard. At the same time, by forming an explosion-proof joint surface, the weight and volume of the parts in the equipment are reduced, and the production cost is reduced. When it can be used for an explosion-proof pan / tilt, the explosion-proof pan / tilt has a weight reduction design and greatly reduces the difficulty of installing the pan / tilt.

[0019] 2. The utility model installs the horizontal transmission housing on the bottom cover, making full use of the bottom space of the gimbal, greatly reducing the horizontal transmission rotation load and reducing the motor torque requirement. This design lowers the center of gravity of the transmission part, making the gimbal rotation more stable.

[0020] 3. The utility model provides couplings on the first vertical transmission shaft and the second vertical transmission shaft between the light tube and the thermal imaging tube. The couplings connect the two first vertical transmission shafts and the second vertical transmission shaft together, thereby allowing the first vertical transmission shaft and the second vertical transmission shaft to deviate in the horizontal transmission and vertical transmission directions, reducing the requirements for parts processing accuracy, and using magnetic encoding chips and magnets as feedback mechanisms to achieve a transmission closed-loop design to improve transmission accuracy.

[0021] 4. The utility model adopts a partition scheme in the thermal imaging tube to move the germanium window between the thermal imaging lens and the detector on the thermal imaging movement. The germanium window is placed behind the lens, which greatly reduces the size of the germanium window and the cost. A flameproof surface is formed between the germanium window and the third flameproof joint surface, which meets the flameproof design requirements, improves the image quality, and greatly reduces the low cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the front three-dimensional structure in an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the explosion structure in the embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the front internal structure in an embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the partial structure of the front side in the embodiment of the utility model;

[0026] Figure 5It is a schematic diagram of the partial structure of the front side in the embodiment of the utility model;

[0027] Figure 6 It is the embodiment of the utility model Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 7 It is a schematic diagram of the internal structure of the left side of the thermal imaging tube in the embodiment of the utility model;

[0029] Figure 8 It is the embodiment of the utility model Figure 7 A schematic diagram of the enlarged structure at B in the middle;

[0030] Fig. 9 It is a schematic diagram of the internal structure of the right side of the light tube in the embodiment of the utility model.

[0031] Description of the accompanying drawings: 1. base; 11. bottom cover; 12. horizontal transmission housing; 13. horizontal transmission worm; 14. horizontal transmission worm wheel; 15. horizontal transmission shaft; 16. horizontal transmission copper sleeve; 17. horizontal transmission bearing; 18. rotating seat; 181. fourth flameproof joint surface; 19. horizontal transmission oil seal; 2. horizontal transmission rotating cavity; 21. housing; 22. first vertical transmission housing; 23. vertical rotation worm and worm assembly; 231. vertical transmission worm; 232. vertical transmission worm wheel; 233. vertical transmission copper sleeve; 24. first vertical transmission shaft; 25. first vertical transmission bearing; 26. vertical transmission left bracket; 261. first vertical transmission oil seal; 27. first flameproof joint surface; 28. coupling; 281. first pin; 282. Magnetic encoding chip; 283. Magnet; 284. Second pin; 29. ​​Second vertical transmission shaft; 291. Second vertical transmission bearing; 292. Second vertical transmission oil seal; 293. Vertical rotation right bracket; 294. Connecting tube; 295. Second explosion-proof joint surface; 3. Light tube; 31. Visible light movement; 32. First tempered glass; 33. Wiper motor; 34. Optical coupling baffle; 35. Optical coupling; 36. Wiper shaft; 37. Rainwater copper sleeve; 371. Wiper bearing; 372. Wiper oil seal; 38. Second tempered glass; 39. Fill light; 391. Third tempered glass; 4. Thermal imaging tube; 41. Thermal imaging movement; 42. Thermal imaging lens; 43. Back cover; 44. Germanium window; 45. Third explosion-proof joint surface; 46. Structural mounting parts. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-9 The utility model is described in further detail.

[0033] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0034] The utility model embodiment discloses a lightweight explosion-proof pan / tilt head. Figure 1-9 A lightweight explosion-proof pan / tilt head comprises a base 1, a bottom cover 11 is fixedly connected to the bottom of the base 1, a horizontal transmission housing 12 is fixedly installed on the top of the bottom cover 11 by bolts, and a horizontal transmission worm gear assembly is installed inside the horizontal transmission housing 12;

[0035] Reference Figure 3-4 The horizontal transmission worm gear assembly includes a horizontal transmission worm 13, the surface of the horizontal transmission worm 13 is rotationally connected to the horizontal transmission housing 12, the surface of the horizontal transmission worm 13 is meshedly connected with a horizontal transmission worm wheel 14, the interior of the horizontal transmission worm wheel 14 is fixedly connected to the surface of a horizontal transmission shaft 15, and the horizontal transmission shaft 15 is installed in the interior of a horizontal transmission copper sleeve 16, the surface of the horizontal transmission copper sleeve 16 is installed in the interior of the horizontal transmission housing 12, both ends of the horizontal transmission shaft 15 are rotationally connected with horizontal transmission bearings 17, the interior of the horizontal transmission copper sleeve 16 is rotationally connected to the surface of the horizontal transmission shaft 15, and the horizontal transmission worm 13 extends to one end of the horizontal transmission housing 12 and is connected to a driving device, and the driving device is used to drive the horizontal transmission worm 13 to rotate;

[0036] The driving device includes a motor, two synchronous wheels, and a synchronous belt. The output shaft of the motor is connected to the center of one synchronous wheel, and a horizontal transmission worm 13 is fixedly connected to the center of the other synchronous wheel. The two synchronous wheels are connected through a synchronous belt transmission, so that the motor starts to drive the synchronous wheel to rotate, and the rotation of the synchronous wheel drives the other synchronous wheel to rotate through the synchronous belt.

[0037] Specifically, the driving mechanism is started to drive the horizontal transmission worm 13 to rotate, the rotation of the horizontal transmission worm 13 drives the horizontal transmission worm wheel 14 to rotate, and the rotation of the horizontal transmission worm wheel 14 drives the horizontal transmission shaft 15 to rotate;

[0038] Through the above structural design, the horizontal transmission housing 12 is installed on the bottom cover 11, which makes full use of the bottom space of the gimbal, greatly reduces the horizontal transmission rotation load, and reduces the motor torque requirement. This design lowers the center of gravity of the transmission part, making the gimbal rotation more stable;

[0039] Reference Figure 3 , 5, one end of the horizontal transmission shaft 15 extending to the outside of the horizontal transmission housing 12 is fixedly connected to the horizontal transmission rotating cavity 2 by bolts, a horizontal transmission oil seal 19 is installed between the rotating seat 18 and the horizontal transmission housing 12, the inner surface of the rotating seat 18 and the outer surface of the horizontal transmission shaft 15 are both provided with explosion-proof surfaces, the inner explosion-proof surface of the rotating seat 18 and the outer explosion-proof surface of the horizontal transmission shaft 15 cooperate with each other to form a fourth explosion-proof joint surface 181, a first vertical transmission housing 22 is fixedly installed inside one side of the horizontal transmission rotating cavity 2 by bolts, and a vertical rotating worm gear assembly 23 is installed inside the first vertical transmission housing 22;

[0040] Reference Figure 3 , 5 The vertically rotating worm gear assembly 23 includes a vertical transmission worm 231, the surface of the vertical transmission worm 231 is rotationally connected to the inside of the first vertical transmission housing 22, the surface of the first vertical transmission housing 22 is meshedly connected with a vertical transmission worm wheel 232, the inside of the vertical transmission worm wheel 232 is fixedly connected to the surface of the first vertical transmission shaft 24, the vertical transmission worm wheel 232 is installed on a vertical transmission copper sleeve 233, both ends of the first vertical transmission shaft 24 are rotationally connected with a first vertical transmission bearing 25, and the first vertical transmission bearing 25 is fixedly connected to the inside of the first vertical transmission housing 22, the vertical transmission worm 231 extends to one end of the first vertical transmission housing 22 and is connected to a driving mechanism, and the driving mechanism and the driving device adopt the same structure;

[0041] Reference Figure 3 , 5 , 6, the first vertical transmission shaft 24 is rotatably connected inside the first vertical transmission housing 22, an empty cylinder is fixedly connected to the surface of the light cylinder 3, the empty cylinder is sleeved on the outer surface of one end of the first vertical transmission shaft 24, the empty cylinder is inserted into the vertical transmission left bracket 26, a first vertical transmission oil seal 261 is installed between the vertical transmission left bracket 26 and the empty cylinder, the inner surface of the empty cylinder and the outer surface of the first vertical transmission shaft 24 are both provided with explosion-proof surfaces, the explosion-proof surface of the inner surface of the vertical transmission left bracket 26 and the explosion-proof surface of the outer surface of the first vertical transmission shaft 24 cooperate with each other to form a first explosion-proof joint surface 27, a fixing screw is fixedly connected to the outer side of the light cylinder 3, the outer surface of the fixing screw is connected to the internal thread of the first vertical transmission shaft 24, so that the light cylinder 3 and the first vertical transmission shaft 24 are fixedly connected together, the first vertical transmission shaft 24 is rotatably connected inside the vertical transmission left bracket 26, the vertical transmission left bracket 26 is fixedly connected to the housing 21 by bolts, the outer side of the light cylinder 3 is fixedly connected to the first screw, the outer surface of the first screw is connected to the internal thread of the second vertical transmission shaft 29;

[0042] Reference Figure 5 , 9The bottom of the light tube 3 is fixedly connected with a fill light 39, the front of the fill light 39 is fixedly connected with a third tempered glass 391, the interior of the light tube 3 is equipped with a visible light core 31, the front of the light tube 3 is fixedly connected with a first tempered glass 32, the front of the light tube 3 is fixedly connected with a front cover, the inner center of the front cover is fixedly connected with the first tempered glass 32, the interior of the light tube 3 is fixedly connected with a wiper motor 33, the output shaft of the wiper motor 33 is drivingly connected with a wiper shaft 36, and the wiper shaft 36 is connected to the output of the wiper motor 33 An optical coupler baffle 34 is installed at the shaft connection, and an optical coupler 35 fixedly connected to the optical tube 3 is installed directly opposite to the optical coupler baffle 34. A wiper bearing 371 is rotatably connected to the surface of the wiper shaft 36, and a rainwater copper sleeve 37 is fixedly connected to the surface of the wiper bearing 371, and the surface of the rainwater copper sleeve 37 is fixedly connected to the optical tube 3. A second tempered glass 38 is fixedly connected to one end of the wiper shaft 36 extending to the optical tube 3, and a wiper oil seal 372 for increasing sealing is installed between the second tempered glass 38 and the wiper shaft 36;

[0043] Reference Figure 3 , 5 6. A coupling 28 is connected to the other side of the first vertical transmission shaft 24. A first fixing hole is provided at a portion of the coupling 28 that overlaps with the first vertical transmission shaft 24 and is close to the first vertical transmission shaft 24. A first pin 281 that connects the coupling 28 and the first vertical transmission shaft 24 is threadedly connected inside the first fixing hole. A second fixing hole is provided at a portion of the coupling 28 that overlaps with the second vertical transmission shaft 29. A second pin 284 that connects the coupling 28 and the second vertical transmission shaft 29 is threadedly connected inside the second fixing hole. A magnetic encoding chip 282 is installed inside the first vertical transmission shaft 24. A magnet 283 is provided on one side of the magnetic encoding chip 282.

[0044] Specifically, the coupling 28 is connected with the first vertical transmission shaft 24 and the second vertical transmission shaft 29 through the first pin 281 and the second pin 284, so as to drive the first vertical transmission shaft 24 to drive the second vertical transmission shaft 29 to rotate together;

[0045] Through the above structural design, by providing a coupling 28 on the first vertical transmission shaft 24 and the second vertical transmission shaft 29 between the optical tube 3 and the thermal imaging tube 4, the coupling 28 connects the two first vertical transmission shafts 24 and the second vertical transmission shaft 29 together, thereby allowing the first vertical transmission shaft 24 and the second vertical transmission shaft 29 to deviate in the horizontal transmission and vertical transmission directions, reducing the requirements for parts processing accuracy, and using the magnetic encoding chip 282 and the magnet 283 as a feedback mechanism to achieve a transmission closed loop design and improve transmission accuracy;

[0046] Reference Figure 3 , 57. Both ends of the second vertical transmission shaft 29 are rotatably connected with the second vertical transmission bearing 291. The other end of the second vertical transmission shaft 29 is rotatably connected with the vertical rotation right bracket 293. The outer surface of the thermal imaging tube 4 is fixedly connected by a connecting tube 294. The connecting tube 294 is sleeved on the outer surface of one end of the second vertical transmission shaft 29. The connecting tube 294 is inserted into the vertical rotation right bracket 293. A second vertical transmission oil seal 292 is installed between the connecting tube 294 and the vertical rotation right bracket 293. The inner surface of the connecting tube 294 and the outer surface of the second vertical transmission shaft 29 are both provided with explosion-proof surfaces. The explosion-proof surface of the inner surface of the connecting tube 294 and the second vertical transmission shaft 2 9, the flameproof surfaces on the outer surface cooperate with each other to form a second flameproof joint surface 295, the vertically rotating right bracket 293 is fixedly connected to the horizontal transmission rotating cavity 2 by bolts, the outer side of the thermal imaging tube 4 is fixedly connected with a screw, the outer surface of the screw is connected with the inner thread of the second vertical transmission shaft 29, the outer surface of the thermal imaging tube 4 is fixedly connected by a connecting tube 294, the connecting tube 294 is sleeved on the outer surface of one end of the second vertical transmission shaft 29, the second vertical transmission oil seal 292 is installed between the connecting tube 294 and the vertically rotating right bracket 293, the flameproof surface on the inner surface of the connecting tube 294 and the flameproof surface on the outer surface of the second vertical transmission shaft 29 form a second flameproof joint surface 295;

[0047] Reference Figure 3 , 7 A thermal imaging core 41 is installed inside the thermal imaging tube 4, a thermal imaging lens 42 is fixedly connected to the front of the thermal imaging tube 4, a germanium window 44 is installed on the back of the thermal imaging lens 42, and a structural mounting member 46 is fixedly connected to the germanium window 44 by bolts. A partition net solution is adopted inside the thermal imaging tube 4, and the germanium window 44 is moved between the thermal imaging lens 42 and the detector on the thermal imaging core 41. The structural mounting member 46 is fixedly connected to the thermal imaging tube 4, and explosion-proof surfaces are provided on the inner side of the structural mounting member 46 and the outer side of the germanium window 44. The explosion-proof surface inside the structural mounting member 46 and the explosion-proof surface outside the germanium window 44 form a third explosion-proof joint surface 45. The rear side of the thermal imaging tube 4 is fixedly connected to a rear cover 43 by bolts;

[0048] Through the above structural design, a mesh screen is used in the thermal imaging tube 4, and the germanium window 44 is moved between the thermal imaging lens 42 and the detector on the thermal imaging core 41. 5. The germanium window is placed behind the lens, which greatly reduces the size of the germanium window 44 and the cost. A flameproof surface is formed between the germanium window 44 and the third flameproof joint surface 45, which meets the flameproof design requirements, improves the image quality, and greatly reduces the product cost.

[0049] The rotating seat 18 inside the horizontal transmission rotation cavity 2 is fixedly connected to the horizontal transmission housing 12 by bolts, the horizontal transmission housing 12 is fixedly connected to the bottom cover 11 by bolts, the housing 21 is fixedly connected to the first vertical transmission housing 22 by bolts, the vertical transmission left bracket 26 is fixedly connected to the housing 21 by bolts, and the vertical rotation right bracket 293 is fixedly connected to the housing 21 by bolts. The above-mentioned components fix the modules together, and also form the first explosion-proof joint surface 27, the fourth explosion-proof joint surface 181, the second explosion-proof joint surface 295, and the third explosion-proof joint surface 45, which are convenient for installation and meet the explosion-proof design requirements, thereby preventing the flame generated by the explosion from being transmitted to the outside of the equipment, thereby causing an environmental explosion. The two parts are designed to strictly install the explosion-proof surface length and gap design required in the explosion-proof design standard. At the same time, by forming the explosion-proof joint surface, the weight and volume of the parts in the equipment are reduced, and the production cost is reduced. When it can be used for the explosion-proof pan / tilt, the weight reduction design of the explosion-proof pan / tilt greatly reduces the difficulty of installation of the pan / tilt.

[0050] Finally, a few points should be explained: First, in the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0051] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0052] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A lightweight explosion-proof pan / tilt head, comprising a base (1), characterized in that: The bottom of the base (1) is fixedly connected to a bottom cover (11), the top of the bottom cover (11) is fixedly installed with a horizontal transmission housing (12) by means of bolts, a horizontal transmission worm gear assembly is installed inside the horizontal transmission housing (12), a horizontal transmission shaft (15) is installed inside the horizontal transmission worm gear assembly, one end of the horizontal transmission shaft (15) extending outside the horizontal transmission housing (12) is fixedly connected to a horizontal transmission rotating cavity (2) by means of bolts, and a first vertical shaft (15) is fixedly installed inside one side of the horizontal transmission rotating cavity (2) by means of bolts. A vertical transmission housing (22), a vertically rotating worm gear assembly (23) is installed inside the first vertical transmission housing (22), a first vertical transmission shaft (24) is installed inside the vertically rotating worm gear assembly (23), the first vertical transmission shaft (24) extends to one end of the first vertical transmission housing (22) and is fixedly connected to a light tube (3), the surface of the first vertical transmission shaft (24) is rotatably connected to the inside of a vertical transmission left bracket (26), and the vertical transmission left bracket (26) is fixedly connected to a horizontal transmission rotating cavity (2) by bolts; The other side of the first vertical transmission shaft (24) is connected to a coupling (28), and the other end of the coupling (28) is connected to a second vertical transmission shaft (29). The outer surface of the second vertical transmission shaft (29) is rotatably connected to a vertical rotation right bracket (293), and the vertical rotation right bracket (293) is fixedly connected to the horizontal transmission rotation cavity (2) by bolts. The second vertical transmission shaft (29) extends to one end of the horizontal transmission rotation cavity (2) and is fixedly connected to a thermal imaging tube (4).

2. A lightweight explosion-proof pan / tilt head according to claim 1, characterized in that: The horizontal transmission worm gear assembly comprises a horizontal transmission worm (13), the surface of the horizontal transmission worm (13) is rotationally connected to the horizontal transmission housing (12), the surface of the horizontal transmission worm (13) is meshedly connected with a horizontal transmission worm wheel (14), the interior of the horizontal transmission worm wheel (14) is fixedly connected to the surface of a horizontal transmission shaft (15), and the horizontal transmission shaft (15) is installed in a horizontal transmission copper sleeve (16), the surface of the horizontal transmission copper sleeve (16) is installed in the interior of the horizontal transmission housing (12), the interior of the horizontal transmission copper sleeve (16) is rotationally connected to the surface of the horizontal transmission shaft (15), and one end of the horizontal transmission worm (13) extending to the horizontal transmission housing (12) is connected to a driving device, and the driving device is used to drive the horizontal transmission worm (13) to rotate.

3. The lightweight explosion-proof pan / tilt head according to claim 1, characterized in that: The vertically rotating worm gear assembly (23) comprises a vertical transmission worm (231), the surface of the vertical transmission worm (231) is rotationally connected to the inside of a first vertical transmission housing (22), the surface of the first vertical transmission housing (22) is meshedly connected with a vertical transmission worm wheel (232), the inside of the vertical transmission worm wheel (232) is fixedly connected to the surface of a first vertical transmission shaft (24), the vertical transmission worm wheel (232) is mounted on a vertical transmission copper sleeve (233), both ends of the first vertical transmission shaft (24) are rotationally connected to first vertical transmission bearings (25), and the first vertical transmission bearings (25) are fixedly connected to the inside of the first vertical transmission housing (22), and one end of the vertical transmission worm (231) extending to the first vertical transmission housing (22) is connected to a driving mechanism.

4. The lightweight explosion-proof pan / tilt head according to claim 1, characterized in that: The horizontal transmission rotating cavity (2) comprises a rotating seat (18) and an outer shell (21), wherein the rotating seat (18) and the outer shell (21) are fixedly connected together by bolts, the inner surface of the rotating seat (18) and the outer surface of the horizontal transmission rotating shaft (15) are both provided with explosion-proof surfaces, the inner explosion-proof surface of the rotating seat (18) and the outer explosion-proof surface of the horizontal transmission rotating shaft (15) cooperate with each other to form a fourth explosion-proof joint surface (181), and a horizontal transmission oil seal (19) is installed between the rotating seat (18) and the horizontal transmission housing (12).

5. The lightweight explosion-proof pan / tilt head according to claim 1, characterized in that: A first fixing hole is provided on a side of the coupling (28) close to the first vertical transmission shaft (24) where the coupling (28) overlaps with the first vertical transmission shaft (24); a first pin (281) is threadedly connected inside the first fixing hole to connect the coupling (28) and the first vertical transmission shaft (24); a second fixing hole is provided on a side of the coupling (28) where the coupling (28) overlaps with the second vertical transmission shaft (29); a second pin (284) is threadedly connected inside the second fixing hole to connect the coupling (28) and the second vertical transmission shaft (29); a magnetic encoder chip (282) is installed inside the first vertical transmission shaft (24); a magnet (283) is provided on one side of the magnetic encoder chip (282).

6. The lightweight explosion-proof pan / tilt head according to claim 1, characterized in that: A visible light engine (31) is installed inside the light tube (3), a front cover is fixedly connected to the front of the light tube (3), a first tempered glass (32) is fixedly connected to the center of the front cover, a wiper motor (33) is fixedly connected to the inside of the light tube (3), an output shaft of the wiper motor (33) is drivingly connected to a wiper shaft (36), an optical coupling baffle (34) is installed at the connection between the wiper shaft (36) and the output shaft of the wiper motor (33), and a light coupling baffle (34) is installed opposite to the optical coupling baffle (34). The optical coupler (35) is fixedly connected to the optical tube (3), the surface of the wiper shaft (36) is rotatably connected to a wiper bearing (371), and the surface of the wiper bearing (371) is fixedly connected to a rainwater copper sleeve (37), the surface of the rainwater copper sleeve (37) is fixedly connected to the optical tube (3), the wiper shaft (36) extends to one end of the optical tube (3) and is fixedly connected to a second tempered glass (38), and a wiper oil seal (372) is installed between the second tempered glass (38) and the wiper shaft (36) to increase the sealing performance.

7. A lightweight explosion-proof pan / tilt head according to claim 6, characterized in that: A fill light (39) is fixedly connected to the bottom of the light tube (3), and a third tempered glass (391) is fixedly connected to the front of the fill light (39).

8. The lightweight explosion-proof pan / tilt head according to claim 1, characterized in that: A thermal imaging core (41) is installed inside the thermal imaging tube (4), a thermal imaging lens (42) is fixedly connected to the front of the thermal imaging tube (4), a germanium window (44) is installed on the back of the thermal imaging lens (42), and a structural mounting member (46) is fixedly connected to the germanium window (44) by means of bolts, the structural mounting member (46) is fixedly connected to the thermal imaging tube (4), a rear cover (43) is fixedly connected to the rear side of the thermal imaging tube (4) by means of bolts, an explosion-proof surface is provided on the inner side of the structural mounting member (46) and the outer side of the germanium window (44), and the inner explosion-proof surface of the structural mounting member (46) and the outer explosion-proof surface of the germanium window (44) form a third explosion-proof joint surface (45).

9. The lightweight explosion-proof pan / tilt head according to claim 1, characterized in that: An empty cylinder is fixedly connected to the surface of the light cylinder (3), and the empty cylinder is sleeved on the outer surface of one end of the first vertical transmission shaft (24). The empty cylinder is inserted into the vertical transmission left bracket (26), and a first vertical transmission oil seal (261) is installed between the vertical transmission left bracket (26) and the empty cylinder. The inner surface of the empty cylinder and the outer surface of the first vertical transmission shaft (24) are both provided with explosion-proof surfaces. The explosion-proof surface of the inner surface of the vertical transmission left bracket (26) and the explosion-proof surface of the outer surface of the first vertical transmission shaft (24) cooperate with each other to form a first explosion-proof joint surface (27).

10. The lightweight explosion-proof pan / tilt head according to claim 1, characterized in that: The outer surface of the thermal imaging tube (4) is fixedly connected to a connecting tube (294), and the connecting tube (294) is sleeved on the outer surface of one end of the second vertical transmission shaft (29). The connecting tube (294) is inserted into the vertical rotating right bracket (293). A second vertical transmission oil seal (292) is installed between the connecting tube (294) and the vertical rotating right bracket (293). The inner surface of the connecting tube (294) and the outer surface of the second vertical transmission shaft (29) are both provided with explosion-proof surfaces. The explosion-proof surface of the inner surface of the connecting tube (294) and the explosion-proof surface of the outer surface of the second vertical transmission shaft (29) cooperate with each other to form a second explosion-proof joint surface (295).

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