Connecting device and iron tower high-altitude camera fixing device

Abstract

The utility model provides a connecting device and an iron tower high-altitude camera fixing device, the connecting device is used for connecting a first connecting frame and a second connecting frame, the first connecting frame is provided with a first connecting end, the second connecting frame is provided with a second connecting end, the connecting device comprises a first mounting plate and a second mounting plate, the first mounting plate is arranged at the first connecting end, and a clamping support is arranged at the lower end of the first mounting plate; the second mounting plate is arranged at the second connecting end, and the second mounting plate is clamped with the clamping support; the connecting ring is arranged on the first mounting plate and the second mounting plate in a sleeving manner; and the positioning mechanism is arranged on the connecting ring and abuts against the first mounting plate and the second mounting plate, so that the first mounting plate is attached to the second mounting plate. The connecting device can ensure that the first mounting plate and the second mounting plate are always in close contact in the connecting process, so that the stability and the reliability of the whole connecting device are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical structure technical field, concretely relates to connecting device and iron tower high altitude camera fixing device. BACKGROUND

[0002] The high altitude camera refers to a kind of monitoring equipment installed in high point or high place, its main function is to realize accurate monitoring of long distance, large range, for example, while ensuring the monitoring of "four chaos" in the key area of river and lake protection, high altitude camera can be installed on iron tower to realize effective monitoring;

[0003] In the related art, such as announcement number CN219623739U, a kind of high altitude camera support is disclosed.The first metal plate cooperates with the second metal plate, the first plane plate is located on the second plane plate, the first adjusting hole overlaps with the second adjusting hole, fixed screw passes through the first adjusting hole, the second adjusting hole and wall body, and the high altitude camera support is fixed on wall body.This connection structure is realized by disassembling screw installation positioning, the possibility of screw loosening is greater in long-term use process, and the stability of camera is influenced by the shaking of high wind in the air. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides connecting device to solve the problem that single threaded connection structure cannot guarantee connection stability in prior art.

[0005] In one aspect, the utility model provides connecting device for connecting first connecting frame and second connecting frame, the first connecting frame has first connecting end, the second connecting frame has second connecting end, characterized by, the connecting device includes: first mounting plate, set in the first connecting end, the lower end of the first mounting plate is equipped with card holder;Second mounting plate, set in the second connecting end, the second mounting plate is engaged with the card holder;Connecting ring, is set on the first mounting plate and the second mounting plate;Positioning mechanism, set on the connecting ring, the positioning mechanism is resisted to the first mounting plate and the second mounting plate, so that first mounting plate and the second mounting plate are attached.

[0006] In an alternative embodiment, the end face of the second mounting plate away from the first mounting plate is provided with a protrusion, one side of the connecting ring attached to the second mounting plate is provided with a card hole, and the protrusion is inserted into the card hole.

[0007] In an alternative embodiment, the card holder is annularly arranged to form a clearance space with the first mounting plate, the card holder is provided with a notch, the end face of the second mounting plate away from the first mounting plate is provided with a fixing block, the second mounting plate is inserted into the clearance space, and the fixing block is inserted into the notch.

[0008] In an alternative embodiment, the positioning mechanism comprises a threaded rod arranged on the connecting ring and abutting against the first mounting plate; a nut arranged on the threaded rod, the nut abutting against the connecting ring; and a locking member arranged on the connecting ring, the locking member being adapted to lock the nut to limit axial displacement of the nut.

[0009] In an alternative embodiment, the locking member comprises an anti-loosening plate, the anti-loosening plate being rotatably connected to the connecting ring, an end of the anti-loosening plate away from the connecting ring being fitted to an end of the nut away from the connecting ring, and the anti-loosening plate being detachably connected to the connecting ring.

[0010] In an alternative embodiment, two anti-loosening plates are provided, the two anti-loosening plates being arranged on opposite sides of the connecting ring, an end of each of the anti-loosening plates away from the connecting ring being provided with a bayonet, the two bayonets being adapted to the threaded rod and forming a circular hole with the threaded rod.

[0011] In an alternative embodiment, the connecting ring comprises a fixed column and a swivel ring rotatably connected to opposite ends of the fixed column, and the positioning mechanism is arranged on the fixed column.

[0012] In an alternative embodiment, the fixed column has a rectangular cross-section.

[0013] In an alternative embodiment, an elastic pad is arranged between the first mounting plate and the second mounting plate, the elastic pad being fitted to both the first mounting plate and the second mounting plate.

[0014] In another aspect, a tower aerial camera fixing device is also provided, comprising the connecting device of any one of the preceding aspects, the first connecting frame of the connecting device being arranged on a tower, and the second connecting frame of the connecting device being provided with a camera.

[0015] The tower aerial camera fixing device has the following advantages:

[0016] 1. The first mounting plate is provided with a clamping bracket at the lower end, which can achieve preliminary positioning and connection between the two mounting plates, effectively ensuring the preliminary stability of the two mounting plates during the connection process, preventing loosening or misalignment during subsequent operations, and the connecting ring is arranged outside the components of the first mounting plate and the second mounting plate, the positioning mechanism abuts against the first mounting plate and the second mounting plate, so that the two mounting plates can be closely fitted together, ensuring that the first mounting plate and the second mounting plate maintain close contact during the connection process, thereby improving the stability and reliability of the entire connecting device.

[0017] 2. The elastic pad is arranged between the first mounting plate and the second mounting plate, and can play a certain buffering effect, and can well buffer strong wind.

[0018] 3. The fixing block is clamped on the clamping support, and the first mounting plate and the second mounting plate can be quickly installed and positioned.

[0019] 4. The first mounting plate and the second mounting plate are abutted by the anti-disengagement plate, the nut and the threaded rod, and the clamping between the swivel ring and the protrusion, so that the nut is prevented from being loosened during long-term use, and the first mounting plate and the second mounting plate are stably positioned. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1 It is a three-dimensional structure schematic view of the connecting device of one embodiment of the utility model;

[0022] Figure 2 It is a three-dimensional structure schematic view of the connecting device of another embodiment of the utility model;

[0023] Figure 3 It is a three-dimensional structure schematic view of the connecting device of one embodiment of the utility model;

[0024] Figure 4 It is a three-dimensional structure schematic view of the positioning mechanism of the connecting device of one embodiment of the utility model;

[0025] Figure 5 It is a three-dimensional structure schematic view of the locking piece of the connecting device of one embodiment of the utility model in the turnover state;

[0026] Figure 6 It is a three-dimensional structure schematic view of the swivel ring and the fixed column of the connecting device of one embodiment of the utility model in the turnover state;

[0027] Figure 7 It is a structure schematic view of the high-altitude camera fixing device of the nodular cast iron tower of one embodiment of the utility model.

[0028] EXPLANATION OF REFERENCE NUMERALS:

[0029] 1, first connecting frame; 2, first mounting plate; 3, camera; 4, second connecting frame; 5, elastic pad; 6, card holder; 7, fixed block; 8, protruding block; 9, swivel ring; 10, fixed column; 11, threaded rod; 12, nut; 13, auxiliary block; 14, anti-off plate; 15, locking bolt; 16, second mounting plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0034] The embodiments of the present application will be described below in combination with Figures 1 to 7 .

[0035] As Figure 1 and Figure 2As shown, according to the embodiment of the utility model, a connecting device is provided for connecting a first connecting frame 1 and a second connecting frame 4, the first connecting frame 1 has a first connecting end, the second connecting frame 4 has a second connecting end, the connecting device comprises: a first mounting plate 2 arranged at the first connecting end, the lower end of the first mounting plate 2 is provided with a clamping bracket 6; a second mounting plate 16 arranged at the second connecting end, the second mounting plate 16 is clamped with the clamping bracket 6; a connecting ring sleeved on the first mounting plate 2 and the second mounting plate 16; a positioning mechanism arranged on the connecting ring, the positioning mechanism abuts against the first mounting plate 2 and the second mounting plate 16, so that the first mounting plate 2 and the second mounting plate 16 are attached.

[0036] In this embodiment, the connecting device mainly comprises a first mounting plate 2, a second mounting plate 16, a connecting ring and a positioning mechanism, the first mounting plate 2 is installed at the first connecting end to provide a basic structure for connection. At the lower end of the first mounting plate 2, a clamping bracket 6 is arranged, the shape and size of the clamping bracket 6 are matched with the clamping part of the second mounting plate 16, which is used to realize the preliminary positioning and connection between the two mounting plates. This clamping method not only has simple operation, but also can effectively ensure the preliminary stability of the two mounting plates during the connection process, preventing loosening or misplacement in subsequent operations.

[0037] The connecting ring is a component sleeved outside the first mounting plate 2 and the second mounting plate 16, which can further fix the relative position of the two mounting plates and prevent them from shaking or shifting during the connection process. The inner diameter of the connecting ring is accurately calculated to tightly fit the outer surface of the first mounting plate 2 and the second mounting plate 16, thereby achieving good fixing effect. The positioning mechanism abuts against the first mounting plate 2 and the second mounting plate 16, so that the two mounting plates can be tightly attached together, ensuring that the first mounting plate 2 and the second mounting plate 16 always maintain close contact during the connection process, thereby improving the stability and reliability of the entire connecting device.

[0038] Through the synergistic effect of the above components, the connecting device can realize the quick and stable connection of the first connecting frame 1 and the second connecting frame 4. This connection method not only has simple operation, but also has reliable structure, which can effectively meet the connection requirements in various industrial scenes.

[0039] Further, as shown in Figure 2 and Figure 3 , the end surface of the second mounting plate 16 away from the first mounting plate 2 is provided with a protruding block 8, the side of the connecting ring attached to the second mounting plate 16 is provided with a clamping hole, and the protruding block 8 is clamped into the clamping hole.

[0040] In this embodiment, the protrusions 8 are cylindrical, and the clamping holes are round. When the second mounting plate 16 is assembled with the connecting ring, the protrusions 8 on the second mounting plate 16 will accurately clamp into the clamping holes of the connecting ring. This clamping method not only further restricts the position of the second mounting plate 16 within the connecting ring, preventing it from shifting or moving during the connection process, but also enhances the structural stability of the entire connecting device.

[0041] Through the clamping relationship between the protrusions 8 of the second mounting plate 16 and the clamping holes of the connecting ring, combined with the clamping relationship between the clamping tabs 6 of the first mounting plate 2 and the second mounting plate 16, a multi-locked connection system is formed. This system not only ensures that the first connecting frame 1 and the second connecting frame 4 remain tightly attached during the connection process, but also effectively resists external forces, preventing the connection from loosening due to vibration or impact.

[0042] In addition, this design also has a certain self-locking function. After the protrusions 8 are clamped into the clamping holes, due to the matching of their shape and size, a structure similar to "occlusion" is formed, making the relative position between the second mounting plate 16 and the connecting ring more fixed. This self-locking function further improves the reliability of the connecting device, allowing it to maintain a stable connection state in various complex working environments.

[0043] Furthermore, the clamping tabs 6 are annularly arranged to form a clearance space with the first mounting plate 2, and the clamping tabs 6 are provided with notches, and the end surface of the second mounting plate 16 away from the first mounting plate 2 is provided with a fixing block 7, and the second mounting plate 16 is inserted into the clearance space, and the fixing block 7 is clamped into the notches.

[0044] The annular structure of the clamping tabs 6 allows the second mounting plate 16 to be smoothly inserted into the clearance space. On the clamping tabs 6, the size and shape of the notches match the fixing block 7 on the second mounting plate 16. When the second mounting plate 16 is inserted into the clearance space, the fixing block 7 on the end surface of the second mounting plate 16 away from the first mounting plate 2 will accurately clamp into the notches of the clamping tabs 6, so that the second mounting plate 16 can be firmly fixed on the clamping tabs 6 after insertion, and the attachment between the second mounting plate 16 and the first mounting plate 2 can be more tightly achieved, preventing it from loosening or shifting during the connection process. Through the cooperation of the notches of the clamping tabs 6 and the fixing block 7, the insertion and fixation of the second mounting plate 16 become simple and fast, without the need for complex tools or additional fixing measures. The design of the annular clamping tabs 6 not only provides sufficient clearance space, but also effectively utilizes the space through the cooperation of the notches and the fixing block 7, making the entire connecting device more compact.

[0045] Further, as shown in FIG. 6, the first mounting plate 2 is provided with a plurality of clamping tabs 6, and the second mounting plate 16 is provided with a plurality of fixing blocks 7 corresponding to the clamping tabs 6. Figure 4As shown, the positioning mechanism comprises a threaded rod, which is arranged on the connecting ring and abuts against the first mounting plate 2; a nut 12, which is sleeved on the threaded rod, and the nut 12 abuts against the connecting ring; and a locking member, which is arranged on the connecting ring and is adapted to lock the nut 12 to limit the axial displacement of the nut 12.

[0046] The connecting ring is provided with a threaded hole for the threaded rod to pass through, and the threaded rod cooperates with the nut 12 through the threaded structure thereof, and the nut 12 abuts against the connecting ring. When the nut 12 is tightened, the first mounting plate 2 will be pressed by the threaded rod, so that the first mounting plate 2 and the second mounting plate 16 are tightly attached, which can effectively prevent the connection part from loosening due to vibration or external force. Through the fixing effect of the locking member, it can be ensured that the nut 12 will not loosen after being tightened due to external force, so as to further improve the stability of the connecting device.

[0047] Further, as shown in the drawings, Figure 5 The locking member comprises an anti-dropping plate 14, which is rotatably connected with the connecting ring, and the end of the anti-dropping plate 14 away from the connecting ring is attached with the end of the nut 12 away from the connecting ring, and the anti-dropping plate 14 is detachably connected with the connecting ring.

[0048] The anti-dropping plate 14 and the connecting ring are rotatably connected, so that the anti-dropping plate 14 can be flexibly rotated on the connecting ring, which is convenient for adjusting the position during installation and disassembly. The end of the anti-dropping plate 14 away from the connecting ring is attached with the end of the nut 12 away from the connecting ring, which can ensure that the anti-dropping plate 14 can tightly limit the axial displacement of the nut 12 and prevent the nut 12 from loosening when subjected to external force. The anti-dropping plate 14 and the connecting ring are detachably connected, for example, the anti-dropping plate 14 and the connecting ring are connected by a locking bolt 15, which not only facilitates the quick disassembly of the anti-dropping plate 14 when the connecting device needs to be maintained or replaced parts, but also improves the maintenance convenience, flexibility and versatility of the device.

[0049] Further, the anti-dropping plate 14 is provided with two, and the two anti-dropping plates 14 are respectively arranged on the opposite sides of the connecting ring, and the end of the anti-dropping plate 14 away from the connecting ring is provided with a bayonet, which is adapted to the threaded rod and can form a circular hole with the two bayonets to pass through the threaded rod.

[0050] In this embodiment, the anti-off plate 14 can be in the shape of L, and the end of the anti-off plate 14 away from the connecting ring is provided with a bayonet, the shape of which is matched with the outer diameter of the threaded rod. When the bayonets of the two anti-off plates 14 are aligned, they can jointly form a circular hole for the threaded rod to pass through, which can effectively prevent the movement of the threaded rod in the axial direction, thereby ensuring the more firm fixation of the nut 12. The anti-off plate 14 and the connecting ring are connected in a detachable manner, for example, by screws. Through the cooperation of the bayonet of the anti-off plate 14 and the threaded rod, as well as the flexible rotation of the anti-off plate 14, the entire installation process is more convenient and fast, which not only can improve the installation efficiency, but also can reduce the risk of failure caused by improper installation.

[0051] Further, as shown in Figure 4 and Figure 6 , the connecting ring comprises: a fixed column 10; a rotating ring 9 rotatably connected to the opposite ends of the fixed column 10; wherein the positioning mechanism is arranged on the fixed column 10.

[0052] In this embodiment, the rotating ring 9 is arranged in the shape of U, the threaded rod and the locking member are arranged on the fixed column 10, and the clamping hole is arranged on the rotating ring 9. The threaded rod and the rotating ring 9 are connected to the opposite ends of the fixed column 10 by a rotating connection, so that the rotating ring 9 can rotate flexibly on the fixed column 10, thereby providing greater flexibility during installation and use.

[0053] Further, the cross section of the fixed column 10 is rectangular, and the two ends of the fixed column 10 have cylindrical connecting ends, which are convenient for rotating connection with the rotating ring 9. The rectangle has clear boundaries and right-angle sides, which can provide good structural stability and bending resistance. The rectangular fixed column 10 can better cooperate with the nut 12 for locking.

[0054] In addition, the outer part of the fixed column 10 is sleeved with a rectangular sleeve ring, and the locking member is rotatably connected to the sleeve ring, which can enhance the structural strength. Among them, an auxiliary block 13 is also arranged, which can be arranged on the sleeve ring, and the locking member is rotatably hinged with the auxiliary block 13. Of course, if the sleeve ring is not arranged, the auxiliary block 13 can also be directly arranged on the fixed column 10.

[0055] Further, as shown in Figure 1 and Figure 2 , the elastic pad 5 is arranged between the first mounting plate 2 and the second mounting plate 16, and the elastic pad 5 is in close contact with the first mounting plate 2 and the second mounting plate 16. The elastic pad 5 is a rubber soft pad, which is arranged between the first mounting plate 2 and the second mounting plate 16, and can play a certain buffering role, which can play a certain relieving effect on strong wind at high places.

[0056] As shown in Figure 7As shown, the utility model also provides a kind of iron tower high altitude camera 3 fixing device, including the connecting device of any one, the first connecting frame 1 of connecting device is located on iron tower, the second connecting frame 4 of connecting device is equipped with camera 3.

[0057] In the embodiment, the first connecting frame is U-shaped hoop, and the U-shaped hoop is arranged at the middle part of the iron tower.In installation, first, the lower end of the second mounting plate is inserted into the card holder, at the same time, the second mounting plate drives the fixed block 7 to be clamped in the card holder 6, and then the positioning between the installation support 4 and the supporting steel plate 2 is facilitated.After positioning is completed, as shown in Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the positioning mechanism is arranged at the upper end of the first mounting plate, and the positioning mechanism drives the second mounting plate and the first mounting plate to form a detachable structure.

[0058] By overturning the swivel ring 9 to the right side, the swivel ring 9 and the fixed column 10 are rotated, so that the fixed column 10 is sleeved outside the first mounting plate and the second mounting plate, then the nut 12 threaded connected outside the surface of the threaded rod 11 is rotated, the left end of the nut 12 is abutted with the fixed column 10, the nut 12 pushes the fixed column 10 to slide between the threaded rod 11, the fixed column 10 drives the swivel ring 9 to move to the left, at this time, the swivel ring 9 is pressed and positioned to the second mounting plate, at the same time, the clamping hole in the middle of the right end of the swivel ring 9 is inserted and connected between the protruding block 8 fixed to the second mounting plate, and then the first mounting plate and the second mounting plate are pressed and limited, and the spherical camera 3 is installed, then the anti-loose plate 14 is overturned to the right, the anti-loose plate 14 is rotated between the auxiliary block 13, so that the right end of the anti-loose plate 14 is abutted with the right side of the nut 12, and the anti-loose plate 14 and the fixed column 10 are limited by the locking bolt 15, by the arrangement of the anti-loose plate 14, the nut 12 can be locked, to prevent the nut 12 from loosening in the long-term use process, so as to effectively prevent the fixed column 10 and the threaded rod 11 from loosening, improve the stability and fastening of the spherical camera 3 installation, realize comprehensive monitoring through the spherical camera 3, the spherical camera 3 is a mature technology, which will not be described here, and the iron tower can provide stable power supply, ensure the online rate of video monitoring, improve the actual utilization rate of the system, each station has complete ac and dc power supply capability, and various power supply modes provide communication level power supply guarantee, realize 24-hour uninterrupted transmission of video stream.

[0059] The utility model can solve the problem that in the prior art, installation and positioning are mostly achieved by disassembling and assembling screws, the screws are more likely to loosen in the long-term use process, and the stability of the camera in the air is poor due to the influence of strong wind.

[0060] The fixing device can effectively reduce the wind blowing and shaking of the high-altitude camera of the iron tower, and can effectively prevent the loosening of the screw cap in the long-term use process, and effectively guarantee the stability and fastening of the installation of the spherical camera.

[0061] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation of the embodiments.

[0062] For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A connecting device for connecting a first connecting frame having a first connecting end and a second connecting frame having a second connecting end, characterized in that The connecting device comprises: a first mounting plate arranged at the first connecting end, the lower end of the first mounting plate being provided with a clamping holder; a second mounting plate arranged at the second connecting end, the second mounting plate being clamped with the clamping holder; a connecting ring sleeved on the first mounting plate and the second mounting plate; a positioning mechanism arranged on the connecting ring, the positioning mechanism abutting against the first mounting plate and the second mounting plate so that the first mounting plate and the second mounting plate are in close contact.

2. The connection device according to claim 1, characterized in that The end surface of the second mounting plate away from the first mounting plate is provided with a protrusion, the side of the connecting ring in close contact with the second mounting plate is provided with a clamping hole, and the protrusion is clamped into the clamping hole.

3. The connection device of claim 1, wherein The clamping holder is annularly arranged to form a clearance space with the first mounting plate, the clamping holder is provided with a notch, the end surface of the second mounting plate away from the first mounting plate is provided with a fixing block, the second mounting plate is inserted into the clearance space, and the fixing block is clamped into the notch.

4. The connection device according to any one of claims 1 to 3, characterized in that The positioning mechanism comprises: a threaded rod penetrating through the connecting ring and abutting against the first mounting plate; a nut sleeved on the threaded rod, the nut abutting against the connecting ring; a locking piece arranged on the connecting ring, the locking piece being adapted to lock the nut to limit axial displacement of the nut.

5. The connection device according to claim 4, characterized in that The locking piece comprises an anti-dropping plate, the anti-dropping plate being rotationally connected with the connecting ring, one end of the anti-dropping plate away from the connecting ring being in close contact with one end of the nut away from the connecting ring, and the anti-dropping plate and the connecting ring being detachably connected.

6. The connection device according to claim 5, characterized in that The anti-dropping plate is provided in two, the two anti-dropping plates being arranged on opposite sides of the connecting ring, one end of the anti-dropping plate away from the connecting ring being provided with a clamping hole, the clamping hole being adapted to the threaded rod and allowing the two clamping holes to form a circular hole for the threaded rod to penetrate through.

7. The connection device according to any one of claims 1 to 3, characterized in that The connecting ring comprises: a fixing column; a swivel ring rotationally connected with opposite ends of the fixing column; The positioning mechanism is arranged on the fixing column.

8. The connection device according to claim 7, characterized in that The cross section of the fixing column is rectangular.

9. The connection device according to any one of claims 1 to 3, characterized in that An elastic pad is arranged between the first mounting plate and the second mounting plate, the elastic pad being in close contact with the first mounting plate and the second mounting plate.

10. A tower aerial camera fixing device, characterized in that, The connecting device comprises: a first mounting plate arranged at the first connecting end, the lower end of the first mounting plate being provided with a clamping holder; a second mounting plate arranged at the second connecting end, the second mounting plate being clamped with the clamping holder; a connecting ring sleeved on the first mounting plate and the second mounting plate; a positioning mechanism arranged on the connecting ring, the positioning mechanism abutting against the first mounting plate and the second mounting plate so that the first mounting plate and the second mounting plate are in close contact. The end surface of the second mounting plate away from the first mounting plate is provided with a protrusion, the side of the connecting ring in close contact with the second mounting plate is provided with a clamping hole, and the protrusion is clamped into the clamping hole. The clamping holder is annularly arranged to form a clearance space with the first mounting plate, the clamping holder is provided with a notch, the end surface of the second mounting plate away from the first mounting plate is provided with a fixing block, the second mounting plate is inserted into the clearance space, and the fixing block is clamped into the notch. The positioning mechanism comprises: a threaded rod penetrating through the connecting ring and abutting against the first mounting plate; a nut sleeved on the threaded rod, the nut abutting against the connecting ring; a locking piece arranged on the connecting ring, the locking piece being adapted to lock the nut to limit axial displacement of the nut. The locking piece comprises an anti-dropping plate, the anti-dropping plate being rotationally connected with the connecting ring, one end of the anti-dropping plate away from the connecting ring being in close contact with one end of the nut away from the connecting ring, and the anti-dropping plate and the connecting ring being detachably connected. The anti-dropping plate is provided in two, the two anti-dropping plates being arranged on opposite sides of the connecting ring, one end of the anti-dropping plate away from the connecting ring being provided with a clamping hole, the clamping hole being adapted to the threaded rod and allowing the two clamping holes to form a circular hole for the threaded rod to penetrate through. The connecting ring comprises: a fixing column; a swivel ring rotationally connected with opposite ends of the fixing column; The positioning mechanism is arranged on the fixing column. The cross section of the fixing column is rectangular. An elastic pad is arranged between the first mounting plate and the second mounting plate, the elastic pad being in close contact with the first mounting plate and the second mounting plate. The connecting device comprises: a first mounting plate arranged at the first connecting end, the lower end of the first mounting plate being provided with a clamping holder; a second mounting plate arranged at the second connecting end, the second mounting plate being clamped with the clamping holder; a connecting ring sleeved on the first mounting plate and the second mounting plate; a positioning mechanism arranged on the connecting ring, the positioning mechanism abutting against the first mounting plate and the second mounting plate so that the first mounting plate and the second mounting plate are in close contact. The end surface of the second mounting plate away from the first mounting plate is provided with a protrusion, the side of the connecting ring in close contact with the second mounting plate is provided with a clamping hole, and the protrusion is clamped into the clamping hole. The clamping holder is annularly arranged to form a clearance space with the first mounting plate, the clamping holder is provided with a notch, the end surface of the second mounting plate away from the first mounting plate is provided with a fixing block, the second mounting plate is inserted into the clearance space, and the fixing block is clamped into the notch. The positioning mechanism comprises: a threaded rod penetrating through the connecting ring and abutting against the first mounting plate; a nut sleeved on the threaded rod, the nut abutting against the connecting ring; a locking piece arranged on the connecting ring, the locking piece being adapted to lock the nut to limit axial displacement of the nut. The locking piece comprises an anti-dropping plate, the anti-dropping plate being rotationally connected with the connecting ring, one end of the anti-dropping plate away from the connecting ring being in close contact with one end of the nut away from the connecting ring, and the anti-dropping plate and the connecting ring being detachably connected. The anti-dropping plate is provided in two, the two anti-dropping plates being arranged on opposite sides of the connecting ring, one end of the anti-dropping plate away from the connecting ring being provided with a clamping hole, the clamping hole being adapted to the threaded rod and allowing the two clamping holes to form a circular hole for the threaded rod to penetrate through. The connecting ring comprises: a fixing column; a swivel ring rotationally connected with opposite ends of the fixing column; The positioning mechanism is arranged on the fixing column. The cross section of the fixing column is rectangular. An elastic pad is arranged between the first mounting plate and the second mounting plate, the elastic pad being in close contact with the first mounting plate and the second mounting plate. The connecting device comprises: a first mounting plate arranged at the first connecting end, the lower end of the first mounting plate being provided with a clamping holder; a second mounting plate arranged at the second connecting end, the second mounting plate being clamped with the clamping holder; a connecting ring sleeved on the first mounting plate and the second mounting plate; a positioning mechanism arranged on the connecting ring, the positioning mechanism abutting against the first mounting plate and the second mounting plate so that the first mounting plate and the second mounting plate are in close contact. The end surface of the second mounting plate away from the first mounting plate is provided with a protrusion, the side of the connecting ring in close contact with the second mounting plate is provided with a clamping hole, and the protrusion is clamped into the clamping hole. The clamping holder is annularly arranged to form a clearance space with the first mounting plate, the clamping holder is provided with a notch, the end surface of the second mounting plate away from the first mounting plate is provided with a fixing block, the second mounting plate is inserted into the clearance space, and the fixing block is clamped into the notch. The positioning mechanism comprises: a threaded rod penetrating through the connecting ring and abutting against the first mounting plate; a nut sleeved on the threaded rod, the nut abutting against the connecting ring; a locking piece arranged on the connecting ring, the locking piece being adapted to lock the nut to limit axial displacement of the nut. The locking piece comprises an anti-dropping plate, the anti-dropping plate being rotationally connected with the connecting ring, one end of the anti-dropping plate away from the connecting ring being in close contact with one end of the nut away from the connecting ring, and the anti-dropping plate and the connecting ring being detachably connected. The anti-dropping plate is provided in two, the two anti-dropping plates being arranged on opposite sides of the connecting ring, one end of the anti-dropping plate away from the connecting ring being provided with a clamping hole, the clamping hole being adapted to the threaded rod and allowing the two clamping holes to form a circular hole for the threaded rod to penetrate through. The connecting ring comprises: a

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