A highly sealed, radiation-resistant gimbal camera

Abstract

This application relates to the field of monitoring technology, and more specifically, to a radiation-resistant gimbal camera with strong sealing performance, comprising: a mounting base with a connecting shaft; a housing body with a hollow rotating boss at one end; and a mechanism disposed at the other end of the housing body; wherein, a bearing is disposed within the rotating boss, the connecting shaft passes through the rotating boss and extends into the housing body, and the connecting shaft is rotatably connected to the rotating boss and the housing body via the bearing; a first annular sealing groove is also formed on the inner wall of the rotating boss, and a first annular sealing ring is disposed within the first annular sealing groove, and the first annular sealing ring is interference-fitted with the connecting shaft; the mounting base is provided with an annular groove, and the rotating boss is provided with an annular protrusion, the annular protrusion being embedded in the annular groove. This application effectively ensures dynamic sealing between the mounting base and the housing body by setting up multiple layers of sealing.

Description

Technical Field

[0001] This utility model relates to the field of monitoring technology, and more specifically, to a highly sealed, radiation-resistant gimbal camera for use in nuclear power plants. Background Technology

[0002] As a crucial facility for clean energy supply, the safe and stable operation of the reactor core, the core component of a nuclear power plant, directly impacts the safety of the entire plant. The nuclear fuel assemblies within the core consist of bundles of fuel rods, and the tubular cladding of these fuel rods prevents the leakage of radioactive materials. During reactor operation, the fuel cladding may develop defects such as cracks, dents, or bulges due to factors like high temperatures, corrosion, and mechanical stress. If such defects occur, fission products may leak into the primary coolant, affecting not only the normal operation of the nuclear equipment but also potentially triggering a serious radioactive contamination accident, threatening personnel and environmental safety. Therefore, real-time and precise monitoring of all areas of the reactor to promptly detect anomalies in the fuel cladding and other critical components is one of the core requirements for nuclear power plant safety management.

[0003] However, the area surrounding a nuclear power plant reactor is a high-radiation environment. Traditional cameras, with their limited radiation resistance in materials and electronic components, are prone to performance degradation, malfunctions, or even damage after prolonged exposure, failing to meet the requirements for long-term stable monitoring. Furthermore, the monitoring area of ​​a nuclear power plant is vast and structurally complex. Deploying radiation-resistant cameras across the entire area would significantly increase equipment costs, and dense deployment in some areas would be difficult. Therefore, designing a radiation-resistant gimbal camera capable of stable operation in high-radiation environments and possessing multi-angle rotation capabilities is particularly necessary.

[0004] Chinese utility model patent CN221429015U discloses a radiation-resistant gimbal camera structure. This structure achieves vertical rotation through a camera cavity assembly surrounding a sidewall assembly's shaft hole, while the sidewall assembly, intermediate cavity assembly, and camera cavity assembly together achieve horizontal rotation around the intermediate cavity assembly's shaft hole, thus expanding the monitoring range to some extent. However, this solution has significant drawbacks: First, the motor is located within one sidewall housing, requiring a larger installation cavity and resulting in a larger overall camera size, which is unsuitable for installation in the confined spaces of a nuclear power plant. Second, the single-sided motor placement leads to an imbalance in weight between the two sidewall assemblies, which will accelerate wear on the rotating mechanism over time, affecting the flexibility and stability of horizontal rotation and reducing the equipment's lifespan. Third, the design does not optimize the sealing performance of the transmission structure, allowing radioactive particles in a high-radiation environment to penetrate the transmission components, further accelerating component aging and affecting the equipment's operational reliability. Utility Model Content

[0005] The main objective of this invention is to provide a radiation-resistant gimbal camera with strong sealing properties to solve at least one of the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model proposes a radiation-resistant gimbal camera with strong sealing performance, comprising: Mounting base, which has a connecting shaft; The outer shell has a hollow rotating boss at one end; The movement, and the inner mechanism, are located at the other end of the main body of the outer casing; The rotating boss is equipped with a bearing, and the connecting shaft passes through the rotating boss and extends into the outer shell body. The connecting shaft is rotatably connected to the rotating boss and the outer shell body through the bearing. The inner wall of the rotating boss is also provided with a first annular sealing groove, and a first annular sealing ring is provided in the first annular sealing groove. The first annular sealing ring is interference-fitted with the connecting shaft. The mounting base is provided with an annular groove, and the rotating boss is provided with an annular protrusion, which is embedded in the annular groove.

[0007] In the above technical solution, there are two first annular sealing grooves, which are spaced apart along the axial direction on the inner wall of the rotating boss, and a first annular sealing ring is provided in each of the two first annular sealing grooves.

[0008] In any of the above technical solutions, a first annular opening is further provided on the annular groove, and a second annular opening is provided on the inner wall of the rotating boss, the second annular opening penetrating the end face of the rotating boss. The end face of the rotating boss seals the first annular opening, and the bottom face of the annular groove seals the second annular opening.

[0009] In any of the above technical solutions, the outer shell body is further U-shaped, with an installation area formed in the middle, and side chambers on both sides and a middle chamber in the middle are formed therein. The connecting shaft passes through the rotating boss and extends into the middle chamber. The gimbal camera also includes: The first drive unit is located in the intermediate cavity and drives the outer shell body to rotate horizontally relative to the connecting shaft through the first transmission unit.

[0010] In any of the above technical solutions, the first transmission unit further includes: The first bevel gear is located at one end of the connecting shaft in the intermediate cavity; The second bevel gear meshes with the first bevel gear; The drive shaft has one end connected to the inner wall of one of the side chambers, and the other end passes through the side chamber and extends into the middle chamber, where it is connected to the second bevel gear. The first gear is mounted on the drive shaft and located in the side cavity. And the second gear, which meshes with the first gear; The first drive unit is a first motor, and the output shaft of the first motor passes through the intermediate chamber and is connected to the second gear.

[0011] In any of the above technical solutions, further, a drive shaft is provided on one side of the movement and a driven shaft is provided on the other side. The drive shaft passes through the outer shell body and extends into one of the chambers, while the driven shaft passes through the outer shell body and extends into the other chamber. The gimbal camera also includes: The second drive unit is located in the intermediate cavity and drives the movement to rotate vertically via the second transmission unit.

[0012] In any of the above technical solutions, the second transmission unit is further comprising a gear set consisting of several meshing gears; the gear set is disposed in one of the side chambers. The second drive unit is the second motor. The output shaft of the second motor passes through the intermediate chamber and is connected to the outermost gear of the gear set.

[0013] In any of the above technical solutions, a second annular sealing ring is provided at the connection between the drive shaft and one of the chambers; a third annular sealing ring is provided at the connection between the driven shaft and the other chamber; and a fourth annular sealing ring is provided at the connection between the driven shaft and the movement, with one end of the driven shaft located on the outer wall of the movement extending into the movement.

[0014] In any of the above technical solutions, the driven shaft is further described as a hollow shaft, and a wire hole leading to its inner cavity is also provided on the outer wall of the driven shaft.

[0015] In any of the above technical solutions, further, the end walls at both ends of the outer shell body are formed with side cover plates that respectively seal and cover the two side chambers. The outer shell has an annular sealing groove that surrounds the side cavity at the side end, and an annular sealing platform that is inserted into the annular sealing groove is provided on the side cover plate.

[0016] Beneficial effects: Compared with existing technologies, By setting up multiple layers of seals, the dynamic seal between the mounting base and the housing body is effectively guaranteed.

[0017] By integrating both the first and second drive units into the intermediate cavity, the problem of excessive cavity volume caused by unilateral deployment of drive components is avoided. This results in symmetrical and compact side chamber structures on both sides of the main body of the outer shell, significantly reducing the overall equipment size and facilitating installation in the confined space of a nuclear power plant. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of one side of this utility model; Figure 3 This is a structural schematic diagram of the side cover plate of this utility model; Figure 4 This is a schematic diagram of the internal structure of the other side of this utility model; Figure 5 This is a schematic diagram of the internal structure of this utility model; Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0020] The annotations in the attached figures are explained as follows: 1. Mounting base; 11. Connecting shaft; 12. Annular groove; 121. First annular opening; 2. Housing body; 21. Rotating boss; 211. Bearing; 212. Annular protrusion; 213. Second annular opening; 22. First annular sealing ring; 23. Side cover plate; 24. Annular sealing groove; 25. Annular sealing platform; 201. Side chamber; 202. Intermediate chamber; 3. Mechanism; 301. Drive shaft; 302. Driven shaft; 303. Second annular sealing ring; 304. Third annular sealing ring; 305. Fourth annular sealing ring; 306. Wire hole; 4. First drive unit; 5. First transmission unit; 51. First bevel gear; 52. Second bevel gear; 53. Transmission shaft; 54. First gear; 55. Second gear; 6. Second drive unit; 7. Second transmission unit; 71. Third gear; 72. Fourth gear; 73. Fifth gear. Detailed Implementation

[0021] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of the embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] It should be noted that, as shown in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements.

[0023] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] The following embodiments will be used to provide a detailed description of the radiation-resistant, well-sealed gimbal camera of this application.

[0027] Example 1 As shown in Figure 1- Figure 6 As shown, this embodiment proposes a radiation-resistant gimbal camera with strong sealing performance, including a mounting base 1, a housing body 2, a mechanism 3, a first drive unit 4, and a second drive unit 6.

[0028] Mounting base 1 is used to fix the entire gimbal camera. It is made of stainless steel with a radiation-resistant coating. A connecting shaft 11 is integrally formed or detachably connected to it. The connecting shaft 11 is a hollow tubular structure to allow cables to pass through it and extend into the outer shell 2, where they connect to the first drive unit 4, the second drive unit 6, and the mechanism 3. The bottom of mounting base 1 has a mounting flange with pre-drilled screw holes and through holes, allowing for various installation methods such as vertical mounting and hanging, adapting to different monitoring scenarios.

[0029] The outer casing 2 is made of radiation-resistant material and has an overall U-shaped structure. The central part forms a mounting area for mounting the movement 3, and the interior has symmetrically distributed side chambers 201 on both sides and a central chamber 202. The connecting shaft 11 passes through the outer casing 2 and extends into the central chamber 202. The connecting shaft 11 and the outer casing 2 are rotatably connected by a bearing 211, ensuring that the outer casing 2 can rotate flexibly relative to the connecting shaft 11.

[0030] The mechanism 3 is an imaging component with radiation resistance. It is an independent module connected to internal cables via a dedicated connector. The front end is equipped with a radiation-resistant zoom lens containing selenium oxide for imaging. A drive shaft 301 is located on one outer wall, and a driven shaft 302 is located on the other outer wall. The drive shaft 301 and driven shaft 302 are coaxially arranged. The drive shaft 301 passes through the outer casing 2 and extends into one side chamber 201, while the driven shaft 302 passes through the outer casing 2 and extends into the other side chamber 201. The mechanism 3 achieves a rotatable connection with the outer casing 2 via the drive shaft 301 and driven shaft 302, allowing it to rotate vertically.

[0031] The first drive unit 4 is disposed in the intermediate chamber 202 and drives the outer shell body 2 to rotate horizontally relative to the connecting shaft 11 through the first transmission unit 5. The first transmission unit 5 includes a first bevel gear 51, a second bevel gear 52, a transmission shaft 53, a first gear 54, and a second gear 55. The first bevel gear 51 is fixedly disposed at one end of the connecting shaft 11 located in the intermediate chamber 202. The second bevel gear 52 meshes with the first bevel gear 51 to realize the vertical conversion of the power direction. One end of the transmission shaft 53 is connected to the inner wall of one of the side chambers 201 through a bearing 211, and the other end passes through the side chamber 201 and extends into the intermediate chamber 202, and is fixedly connected to the second bevel gear 52. The first gear 54 is fixedly disposed on the transmission shaft 53 and located in the side chamber 201. The second gear 55 meshes with the first gear 54. The first drive unit 4 is a first motor. The output shaft of the first motor passes through the intermediate chamber 202 and is fixedly connected to the second gear 55, realizing power transmission through motor drive. To improve the transmission ratio, a small gear can be added between the first gear 54 and the second gear 55.

[0032] The second drive unit 6 is located within the intermediate chamber 202 and drives the movement 3 to rotate vertically via the second transmission unit 7. The second transmission unit 7 is a gear set consisting of several meshing gears, located in one side chamber 201. This gear set is a reduction gear set, including a third gear 71, a fourth gear 72, and a fifth gear 73. The third gear 71 is fixedly connected to one end of the drive shaft 301 that extends into the side chamber 201; the fourth gear 72 meshes with the third gear 71, and the fifth gear 73 meshes with the fourth gear 72. The second drive unit 6 is a second motor, whose output shaft passes through the intermediate chamber 202 and is fixedly connected to the fifth gear 73. The reduction gear set achieves a decrease in rotational speed and an increase in torque, ensuring smooth rotation of the movement 3.

[0033] When horizontal rotation adjustment is required, the first motor starts, driving the second gear 55 to rotate. The second gear 55 drives the first gear 54 and the transmission shaft 53 to rotate. The transmission shaft 53 drives the second bevel gear 52 to rotate. The second bevel gear 52 meshes with the first bevel gear 51 fixed on the connecting shaft 11. Since the connecting shaft 11 is fixed, the power is transmitted in the reverse direction to the outer shell 2, causing the outer shell 2 to rotate horizontally relative to the connecting shaft 11, thus achieving horizontal adjustment of the monitoring angle. When vertical rotation adjustment is required, the second motor starts, driving the fifth gear 73 to rotate. The fifth gear 73 drives the fourth gear 72 to rotate. The fourth gear 72 drives the third gear 71 to rotate. The third gear 71 drives the drive shaft 301 and the mechanism 3 to rotate vertically, thus achieving vertical adjustment of the monitoring angle.

[0034] It should be noted that by integrating both the first drive unit 4 and the second drive unit 6 into the intermediate chamber 202, the problem of excessive chamber volume caused by the single-sided arrangement of drive components is avoided. This makes the side chambers 201 on both sides of the outer shell 2 symmetrical and compact, significantly reducing the overall equipment volume and facilitating installation in the confined space of a nuclear power plant.

[0035] In addition, the drive components are concentrated in the central chamber 202, which makes the weight distribution on both sides of the outer shell 2 uniform, avoiding the problem of uneven wear of the rotating mechanism caused by one-sided weight, improving the flexibility and stability of horizontal and vertical rotation, and extending the service life of the equipment.

[0036] It should be noted that the first transmission unit 5 uses bevel gears to realize the power direction conversion, and with the gear meshing transmission, it ensures the high efficiency of horizontal rotation power transmission.

[0037] It should be noted that, since the movement 3 has been described in detail in the prior art, those skilled in the art can understand it based on the prior art. Therefore, the movement 3 will not be described in detail in this embodiment.

[0038] Example 2 This embodiment is a further improvement based on the above embodiment.

[0039] As shown in Figures 1, 5, and 6, in this embodiment, the outer shell body 2 has a hollow rotating boss 21 at one end. A bearing 211 is provided inside the rotating boss 21. The connecting shaft 11 passes through the rotating boss 21 and extends into the outer shell body 2. The connecting shaft 11 is rotatably connected to the rotating boss 21 and the outer shell body 2 through the bearing 211. The inner wall of the rotating boss 21 is also provided with a first annular sealing groove 24, and a first annular sealing ring 22 is provided in the first annular sealing groove 24. The first annular sealing ring 22 is interference-fitted with the connecting shaft 11. The mounting base 1 is provided with an annular groove 12, and the rotating boss 21 is provided with an annular protrusion 212, which is embedded in the annular groove 12.

[0040] The annular groove 12 is also provided with a first annular opening 121, and the inner wall of the rotating boss 21 is provided with a second annular opening 213, which penetrates the end face of the rotating boss 21; wherein, the end face of the rotating boss 21 seals the first annular opening 121, and the bottom surface of the annular groove 12 seals the second annular opening 213.

[0041] The gimbal camera needs to have strong sealing performance to prevent water from entering the camera's interior when it operates underwater, causing damage to components and mechanical structures. To this end, a rotating boss 21 is provided on the main body 2 of the housing. The rotating boss 21 is rotatably connected to the connecting shaft 11 via a bearing 211. A first annular sealing ring 22 is also provided, so that when the main body 2 of the housing rotates, the connecting shaft 11 and the rotating boss 21 are dynamically sealed by the first annular sealing ring 22.

[0042] In addition, by setting the annular groove 12 and the annular protrusion 212, a primary seal is achieved between the mounting base 1 and the rotating boss 21. A secondary seal is achieved by setting the first annular opening 121 and the second annular opening 213. The first annular sealing ring 22 achieves a tertiary seal. By setting multiple layers of seals, the dynamic seal between the mounting base 1 and the outer shell body 2 is effectively guaranteed.

[0043] It should be noted that there are two first annular sealing grooves 24, which are spaced apart along the axial direction on the inner wall of the rotating boss 21, and each of the two first annular sealing grooves 24 is provided with a first annular sealing ring 22. By providing two first annular sealing rings 22, the sealing effect is further improved.

[0044] Example 3 This embodiment is a further improvement based on the above embodiment.

[0045] like Figure 5 As shown, in this embodiment, a second annular sealing ring 303 is provided at the connection between the drive shaft 301 and one of the chambers 201; a third annular sealing ring 304 is provided at the connection between the driven shaft 302 and the other chamber 201; one end of the driven shaft 302 located on the outer wall of the movement 3 extends into the movement 3, and a fourth annular sealing ring 305 is provided at the connection between the driven shaft 302 and the movement 3.

[0046] Among them, the driven shaft 302 is a hollow shaft, and a wire hole 306 leading to its inner cavity is also provided on the outer wall of the driven shaft 302.

[0047] Dynamic sealing between the outer casing 2 and the mechanism 3 is achieved by setting a second annular sealing ring 303, a third annular sealing ring 304, and a fourth annular sealing ring 305.

[0048] It should be noted that the driven shaft 302 is set as a hollow shaft so that after the cable passes through the side chamber 201, it can pass through the hollow shaft into the mechanism 3 and be electrically connected to the various components in the mechanism 3.

[0049] Example 4 This embodiment is a further improvement based on the above embodiment.

[0050] As shown in Figure 1- Figure 3 As shown, in this embodiment, the end walls of both sides of the outer shell body 2 form side cover plates 23 for sealing and covering the two side chambers 201; the side ends of the outer shell body 2 are provided with annular sealing grooves 24 surrounding the side chambers 201, and annular sealing platforms 25 are correspondingly provided on the side cover plates 23. The annular sealing platforms 25 are inserted into the annular sealing grooves 24 to form a double sealing structure, which effectively blocks radioactive particles from entering the chambers and improves the radiation resistance and sealing reliability of the equipment.

[0051] In this embodiment, an annular groove is provided on the surface of the annular sealing platform 25, and a radiation-resistant sealing ring is installed in the groove. When the annular sealing platform 25 is inserted into the annular sealing groove 24, the sealing ring is squeezed and deformed, forming a triple sealing effect, which further enhances the sealing reliability and is suitable for monitoring areas with higher radiation doses.

[0052] Example 5 This embodiment is a further improvement based on the above embodiment.

[0053] like Figure 4 As shown, in this embodiment, the number of teeth of the third gear 71, the fourth gear 72, and the fifth gear 73 decreases progressively.

[0054] The second transmission unit 7 adopts a three-stage reduction gear set, and the number of gear teeth decreases step by step, which realizes precise control of speed and effective improvement of torque, making the vertical rotation of the mechanism 3 smooth and accurate, and meeting the precise positioning requirements of different angles during the monitoring process.

[0055] It should be noted that there are two fourth gears 72 and three fifth gears 73, which are staggered vertically within the side chamber 201.

[0056] The compact layout (staggered vertical arrangement) of the gear set makes full use of the internal space of the side chamber 201, avoiding the expansion of the side chamber 201's volume due to increasing the number of gears. This ensures that the sealing structure of the side cover plate 23 and the outer shell body 2 can stably cover the opening of the side chamber 201 without compromising the overall sealing performance. At the same time, the improved smoothness of the gear set's operation reduces vibration impact on the inner wall and sealing structure of the side chamber 201, preventing long-term vibration from causing displacement of the sealing platform and sealing ring, further ensuring the radiation-proof sealing performance of the side chamber 201.

[0057] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A radiation-resistant gimbal camera with strong sealing properties, characterized in that, include: Mounting base (1), which has a connecting shaft (11); The outer shell body (2) has a hollow rotating boss (21) at one end. and the movement (3), which is located at the other end of the outer casing (2); The rotating boss (21) is provided with a bearing (211), the connecting shaft (11) passes through the rotating boss (21) and extends into the outer shell body (2), and the connecting shaft (11) is rotatably connected to the rotating boss (21) and the outer shell body (2) through the bearing (211); The inner wall of the rotating boss (21) is also provided with a first annular sealing groove (24), and a first annular sealing ring (22) is provided in the first annular sealing groove (24), and the first annular sealing ring (22) is press-fitted with the connecting shaft (11); the mounting base (1) is provided with an annular groove (12), and the rotating boss (21) is provided with an annular protrusion (212), and the annular protrusion (212) is embedded in the annular groove (12).

2. The radiation-resistant gimbal camera with strong sealing properties as described in claim 1, characterized in that, There are two first annular sealing grooves (24), which are spaced apart along the axial direction on the inner wall of the rotating boss (21), and the first annular sealing ring (22) is provided in both first annular sealing grooves (24).

3. The radiation-resistant gimbal camera with strong sealing performance as described in claim 1, characterized in that, The annular groove (12) is also provided with a first annular opening (121), and the inner wall of the rotating boss (21) is provided with a second annular opening (213), which penetrates the end face of the rotating boss (21). The end face of the rotating boss (21) seals the first annular opening (121), and the bottom face of the annular groove (12) seals the second annular opening (213).

4. The radiation-resistant gimbal camera with strong sealing performance as described in any one of claims 1-3, characterized in that, The outer shell body (2) has a U-shaped structure with an installation area in the middle, and side chambers (201) on both sides and a middle chamber (202) in the middle are formed therein. The connecting shaft (11) passes through the rotating boss (21) and extends into the middle chamber (202). The gimbal camera also includes: The first drive unit (4) is disposed in the intermediate chamber (202) and drives the outer shell body (2) to rotate in the horizontal direction relative to the connecting shaft (11) through the first transmission unit (5).

5. The radiation-resistant gimbal camera with strong sealing performance as described in claim 4, characterized in that, The first transmission unit (5) includes: The first bevel gear (51) is disposed at one end of the connecting shaft (11) located in the intermediate chamber (202); The second bevel gear (52) meshes with the first bevel gear (51); The drive shaft (53) has one end connected to the inner wall of one of the side chambers (201), and the other end extends through the side chamber (201) into the intermediate chamber (202) and is connected to the second bevel gear (52). The first gear (54) is mounted on the drive shaft (53) and located in the side chamber (201); And the second gear (55) meshes with the first gear (54); The first drive unit (4) is a first motor, and the output shaft of the first motor passes through the intermediate chamber (202) and is connected to the second gear (55).

6. The radiation-resistant gimbal camera with strong sealing performance as described in claim 4, characterized in that, The movement (3) has a drive shaft (301) on one side and a driven shaft (302) on the other side. The drive shaft (301) passes through the outer shell body (2) and extends into one of the side chambers (201). The driven shaft (302) passes through the outer shell body (2) and extends into the other side chamber (201). The gimbal camera also includes: The second drive unit (6) is disposed in the intermediate chamber (202) and drives the movement (3) to rotate in the vertical direction through the second transmission unit (7).

7. The radiation-resistant gimbal camera with strong sealing performance as described in claim 6, characterized in that, The second transmission unit (7) is a gear set consisting of several meshing gears; the gear set is disposed in one of the side chambers (201); The second drive unit is a second motor, and the output shaft of the second motor passes through the intermediate chamber (202) and is connected to the outermost gear of the gear set.

8. The radiation-resistant gimbal camera with strong sealing performance as described in claim 6, characterized in that, A second annular seal (303) is provided at the connection between the drive shaft (301) and one of the side chambers (201); a third annular seal (304) is provided at the connection between the driven shaft (302) and the other side chamber (201); one end of the driven shaft (302) is located on the outer wall of the movement (3) and extends into the movement (3); a fourth annular seal (305) is provided at the connection between the driven shaft (302) and the movement (3).

9. The radiation-resistant gimbal camera with strong sealing performance as described in claim 8, characterized in that, The driven shaft (302) is a hollow shaft, and a wire hole (306) leading to its inner cavity is also provided on the outer wall of the driven shaft (302).

10. The radiation-resistant gimbal camera with strong sealing performance as described in claim 4, characterized in that, The end walls of the two sides of the outer shell body (2) are formed with side cover plates (23) that respectively seal and cover the two side chambers (201). The outer shell body (2) has an annular sealing groove (24) around the side chamber (201) at its side end, and the side cover plate (23) is provided with an annular sealing platform (25) that is inserted into the annular sealing groove (24).

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