A general-purpose image acquisition device capable of improving the acquisition efficiency

Abstract

The present invention relates to the technical field of image acquisition, and specifically to a general-purpose image acquisition device capable of improving the acquisition efficiency, which solves the problems of low image acquisition efficiency of the device and dust falling on the outer surface of the lens when used in an environment with a lot of dust, thereby affecting the image acquisition of the device. It includes a high-acquisition-efficiency external camera. Through a one-by-one pushing mechanism, the present invention can push a high-transmittance lens, a large-aperture lens, an anti-fog lens, and a fixed-focus lens to the rear of the image collector one by one, and through an anti-dust-falling mechanism during operation, it can continuously blow a circular flow of wind flowing backward on the outside of the rear of the image collector. Through the above technical solutions, the image collector can use different lenses for image acquisition operations according to the external environment, so as to improve the focusing speed of the device in different environments, enhance the overall image acquisition efficiency of the device, and at the same time prevent dust from adhering to the outer surface of the lens inside the device through the wind blowing backward.

Description

Technical Field

[0001] The present invention relates to the technical field of image acquisition, and particularly to a general-purpose image acquisition device capable of improving the acquisition efficiency. Background Art

[0002] An image acquisition device is a device with image acquisition capabilities. The image acquisition device can capture and convert image information into digital signals for storage, processing, analysis, or real-time communication. They are widely used in industrial inspection, medical diagnosis, security monitoring, and remote communication;

[0003] A general-purpose image acquisition device is a device that can be widely used in different fields and scenarios. For example, it can be connected to various different devices such as computers, TVs, quality monitoring devices for industrial production, and vehicles through USB, Type-C, or Micro USB to act as an external camera for image acquisition for a driving recorder. Such an external camera for image acquisition that can be widely used in different fields can be called a general-purpose image acquisition device.

[0004] However, this type of external camera-based general-purpose image acquisition device has poor environmental adaptability and cannot use different lenses to perform image acquisition operations on the outside world in different environments, thus affecting the image acquisition effect and efficiency of this image acquisition device. Also, when using this general-purpose image acquisition device to perform image acquisition operations in an environment with a lot of dust, the external dust may be adsorbed on the outer surface of the lens, thus affecting the image acquisition quality of the device. Therefore, it does not meet the existing requirements, and for this reason, we propose a general-purpose image acquisition device capable of improving the acquisition efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a general-purpose image acquisition device capable of improving the acquisition efficiency, so as to solve the problems mentioned in the above background art, such as the poor environmental adaptability of this type of external camera-based general-purpose image acquisition device, inability to use different lenses to perform image acquisition operations on the outside world in different environments, thus affecting the image acquisition effect and efficiency of this image acquisition device, and when using this general-purpose image acquisition device to perform image acquisition operations in an environment with a lot of dust, the external dust may be adsorbed on the outer surface of the lens, thus affecting the image acquisition quality of the device.

[0006] To achieve the above object, the present invention provides the following technical solution: a general-purpose image acquisition device capable of improving the acquisition efficiency, including a high-acquisition-efficiency external camera. The high-acquisition-efficiency external camera includes a high-acquisition-efficiency camera housing, an image acquirer, four mounting plates, four lens clamping mounting grooves, a high-transmittance lens, a large-aperture lens, an anti-fog lens, a fixed-focus lens, and a sequential pushing mechanism. The image acquirer is fixed at the middle position inside the high-acquisition-efficiency camera housing, and the high-transmittance lens is located behind the image acquirer;

[0007] The four lens clamping mounting grooves are respectively located on the outer surfaces of the four mounting plates. The high-transmittance lens, the large-aperture lens, the anti-fog lens, and the fixed-focus lens are respectively fixedly clamped inside the four lens clamping mounting grooves. The sequential pushing mechanism can sequentially push the high-transmittance lens, the large-aperture lens, the anti-fog lens, and the fixed-focus lens to the rear of the image acquirer;

[0008] Behind the high-acquisition-efficiency external camera, there is an anti-dust-falling mechanism during operation. The anti-dust-falling mechanism during operation includes an air outlet pipe, two small filter-type exhaust fans, two connecting pipes, a circular pipe, and a plurality of L-shaped air outlet pipe heads. The two small filter-type exhaust fans are respectively fixedly installed on both sides of the outer surface of the air outlet pipe. The circular pipe is fixed inside the air outlet pipe, and the two small filter-type exhaust fans are respectively communicated with the circular pipe through the two connecting pipes;

[0009] The plurality of L-shaped air outlet pipe heads are fixedly installed in a ring on the inner wall of the circular pipe.

[0010] Preferably, the high-acquisition-efficiency external camera further includes a brightness sensor. Below the brightness sensor, there is a humidity sensor fixedly installed on the outer surface of the high-acquisition-efficiency camera housing, and both the brightness sensor and the humidity sensor are electrically connected to the sequential pushing mechanism.

[0011] Preferably, the sequential pushing mechanism includes a stepper motor. The output shaft of the stepper motor is connected with a transmission rotating shaft through a coupling. On one side of the outer surface of the transmission rotating shaft, a first bevel gear is fixedly sleeved. The first bevel gear meshes with a second bevel gear. The center of the second bevel gear is connected with a first gear rotating shaft. On one side of the outer surface of the first gear rotating shaft, a third bevel gear is fixedly sleeved. The third bevel gear meshes with a fourth bevel gear. The center of the fourth bevel gear is connected with a second gear rotating shaft.

[0012] Preferably, on one side of the outer surface of the second gear rotating shaft, a small gear is fixedly sleeved. The small gear meshes with a medium-sized gear located outside the image acquirer, and the image acquirer is located at the middle position inside the medium-sized gear.

[0013] Preferably, a roller bearing ring fixedly arranged inside the medium-sized gear and connected to the housing of the high-collection-efficiency camera by a roller bearing is provided. A rear end face of the roller bearing ring is fixedly connected to an adjustment ring. Four end corners on an outer surface of the adjustment ring are each provided with a sliding installation groove, and the four mounting plates are respectively slidably installed inside the four sliding installation grooves.

[0014] Preferably, one side of an outer surface of the mounting plate is an arc head. A semi-circular positioning groove is provided at a middle position on an outer surface of the arc head. A semi-circular positioning plate is clamped inside the semi-circular positioning groove at the uppermost position. An arc-shaped pushing plate fixed inside the housing of the high-collection-efficiency camera is connected to an upper end face of the semi-circular positioning plate.

[0015] Preferably, a reset rod is fixedly arranged at a position on the outer surface of the mounting plate close to the lens clamping installation groove. A top end of the reset rod movably penetrates through the adjustment ring and extends to the outside of the adjustment ring. An anti-detachment head is fixedly connected to an outer surface of the reset rod located outside the adjustment ring. A spring sleeved on an outer surface of the reset rod is arranged between the anti-detachment head and the adjustment ring, and two ends of the spring are respectively connected between the anti-detachment head and the adjustment ring.

[0016] Preferably, the dust-proof and anti-falling mechanism during operation further includes a fixed mounting ring. A circular mounting groove located at a rear end face of the high-collection-efficiency external camera is provided in front of the fixed mounting ring, and a shape of an outer surface of the fixed mounting ring corresponds to a shape of an inner wall of the circular mounting groove.

[0017] Preferably, an internal thread connection groove located at a rear end face of the air outlet pipe is provided behind the fixed mounting ring. An externally threaded sealing cover is provided behind the internal thread connection groove, and an external thread of the externally threaded sealing cover matches an internal thread of the internal thread connection groove.

[0018] Preferably, a circular cover plate located on an outer surface of the housing of the high-collection-efficiency camera is provided in front of the stepping motor, and the housing of the high-collection-efficiency camera and the circular cover plate are fixed by threads.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. Through the one-by-one pushing mechanism of the present invention, high-transmission lenses, large-aperture lenses, anti-fog lenses, and fixed-focus lenses can be pushed one by one to the rear of the image collector. Through the above technical solution, the image collector in the high-collection-efficiency external camera can automatically use different lenses to perform image collection operations on the outside world according to the external environment. Appropriate lenses can better focus light, reduce distortion and chromatic aberration, thereby improving the clarity and contrast of the image. Moreover, by using corresponding lenses in different environments, the overall focusing speed of the device can be increased, thereby improving the overall image collection efficiency of the device;

[0021] 2. Through the dust-proof mechanism during operation of the present invention, a circular wind flowing backward can be continuously blown outside the rear of the image collector. Through this wind force, it can prevent dust from adhering to the outer surface of the lens inside the device when using this device in an environment with a lot of dust. Through the above technical solution, the shooting effect of this device in an environment with a lot of dust is ensured not to be affected by dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0023] Figure 2 is the present invention Figure 1 an enlarged structural view of part A;

[0024] Figure 3 is the present invention Figure 1 a front view of the internal structure of the dust-proof mechanism during operation at part A of the present invention;

[0025] Figure 4 is a front view of the high-collection-efficiency external camera of the present invention;

[0026] Figure 5 is the present invention Figure 4 an enlarged structural view of part B;

[0027] Figure 6 is a side view of the high-collection-efficiency external camera of the present invention;

[0028] Figure 7 is the present invention Figure 6 an enlarged structural view of part C.

[0029] In the figure: 1. High collection efficiency external camera; 2. Dust prevention mechanism during operation; 201. Air outlet pipe; 202. Small filter type exhaust fan; 203. Connecting pipe; 204. Annular pipe; 205. L-shaped air outlet pipe head; 206. Internal thread connection groove; 207. Externally threaded connection type sealing cover; 208. Fixed mounting ring; 209. Circular mounting groove; 3. Light sensor; 4. Humidity sensor; 5. Image collector; 6. Stepper motor; 7. Transmission rotating shaft; 8. First bevel gear; 9. Second bevel gear; 10. First gear rotating shaft; 11. Third bevel gear; 12. Fourth bevel gear; 13. Second gear rotating shaft; 14. Small gear; 15. Medium gear; 16. Roller bearing ring; 17. Adjusting ring; 18. Sliding mounting groove; 19. Mounting plate; 20. Lens clamping mounting groove; 21. High light transmission lens; 22. Large aperture lens; 23. Anti-fog lens; 24. Fixed focus lens; 25. Arc head; 26. Arc push plate; 27. Semi-circular positioning groove; 28. Semi-circular positioning plate; 29. Reset rod; 30. Anti-disengagement head; 31. Spring; 32. High collection efficiency camera housing. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Please refer to Figures 1 to 7 , an embodiment provided by the present invention: A general-purpose image acquisition device capable of improving the acquisition efficiency, including a high collection efficiency external camera 1. The high collection efficiency external camera 1 includes a high collection efficiency camera housing 32, an image collector 5, four mounting plates 19, four lens clamping mounting grooves 20, a high light transmission lens 21, a large aperture lens 22, an anti-fog lens 23, a fixed focus lens 24 and a sequential pushing mechanism. The image collector 5 is fixed at the middle position inside the high collection efficiency camera housing 32, and the high light transmission lens 21 is located behind the image collector 5;

[0032] The four lens clamping mounting grooves 20 are respectively located on the outer surfaces of the four mounting plates 19. The high light transmission lens 21, the large aperture lens 22, the anti-fog lens 23 and the fixed focus lens 24 are respectively fixedly clamped inside the four lens clamping mounting grooves 20. The sequential pushing mechanism can sequentially push the high light transmission lens 21, the large aperture lens 22, the anti-fog lens 23 and the fixed focus lens 24 behind the image collector 5.

[0033] The high acquisition efficiency external camera 1 further includes a brightness sensor 3. Below the brightness sensor 3, there is a humidity sensor 4 fixedly installed on the outer surface of the high acquisition efficiency camera housing 32. Both the brightness sensor 3 and the humidity sensor 4 are electrically connected to the one-by-one pushing mechanism. The brightness sensor 3 and the humidity sensor 4 can detect the surrounding environment of the device in real time, and move different lenses to the rear of the image collector 5 according to different environments.

[0034] The one-by-one pushing mechanism includes a stepping motor 6. The output shaft of the stepping motor 6 is connected to a transmission rotating shaft 7 through a coupling. On one side of the outer surface of the transmission rotating shaft 7, there is a first bevel gear 8 fixedly sleeved. The first bevel gear 8 meshes with a second bevel gear 9. The center of the second bevel gear 9 is connected to a first gear rotating shaft 10. On one side of the outer surface of the first gear rotating shaft 10, there is a third bevel gear 11 fixedly sleeved. The third bevel gear 11 meshes with a fourth bevel gear 12. The center of the fourth bevel gear 12 is connected to a second gear rotating shaft 13. When the external brightness is low and the image collector 5 needs to collect external images through the large aperture lens 22, the stepping motor 6 will automatically start. The stepping motor 6 can drive the transmission rotating shaft 7 connected thereto and the first bevel gear 8 fixedly sleeved on the outer surface of the transmission rotating shaft 7 to rotate. The rotating first bevel gear 8 can drive the second bevel gear 9 meshing therewith and the first gear rotating shaft 10 connected to the center of the second bevel gear 9 to rotate together. When the first gear rotating shaft 10 rotates, the third bevel gear 11 fixedly sleeved on the outer surface of the first gear rotating shaft 10 and the fourth bevel gear 12 meshing therewith will rotate synchronously. The rotating fourth bevel gear 12 can drive the second gear rotating shaft 13 connected to the center of the fourth bevel gear 12 to rotate.

[0035] On one side of the outer surface of the second gear rotating shaft 13, there is a small gear 14 fixedly sleeved. The small gear 14 meshes with a medium gear 15 located outside the image collector 5. And the image collector 5 is located at the middle position inside the medium gear 15. Inside the medium gear 15, there is a roller bearing ring 16 connected to the high acquisition efficiency camera housing 32 through a roller bearing. The rear end face of the roller bearing ring 16 is fixedly connected to an adjustment ring 17. At the four end corners of the outer surface of the adjustment ring 17, there is a sliding installation groove 18 respectively. And four mounting plates 19 are respectively slidably installed inside the four sliding installation grooves 18. The rotating second gear rotating shaft 13 can drive the small gear 14 fixedly sleeved on the outer surface of the second gear rotating shaft 13 and the medium gear 15 meshing with the small gear 14 to rotate. The rotating medium gear 15 can drive the roller bearing ring 16 fixed inside the medium gear 15 and the adjustment ring 17 fixed to the rear end face of the roller bearing ring 16 to rotate together.

[0036] One side of the outer surface of the mounting plate 19 is an arc-shaped head 25. A semi-circular positioning groove 27 is provided at the middle position of the outer surface of the arc-shaped head 25. A semi-circular positioning plate 28 is clamped inside the uppermost semi-circular positioning groove 27. The upper end surface of the semi-circular positioning plate 28 is connected to an arc-shaped pushing plate 26 fixed inside the housing 32 of the high collection efficiency camera. When the adjustment ring 17 rotates, the four mounting plates 19 respectively slidably installed inside the four sliding installation grooves 18 on the outer surface of the adjustment ring 17 will revolve around the center point inside the adjustment ring 17. When the arc-shaped head 25 on the outer surface of the mounting plate 19 with the large aperture lens 22 fixedly installed on its outer surface contacts the arc-shaped pushing plate 26, under the push of the arc-shaped pushing plate 26, this mounting plate 19 will be pushed towards the square of the image collector 5. When the semi-circular positioning plate 28 fixed on the outer surface of the arc-shaped pushing plate 26 is snapped into the inside of the semi-circular positioning groove 27 on the outer surface of this mounting plate 19, the large aperture lens 22 fixed on the outer surface of this mounting plate 19 will move to the rear of the image collector 5. After that, the image collector 5 can perform image collection operations in low light environments through the large aperture lens 22. Through the above technical solution, the image collector 5 in the high collection efficiency external camera 1 can automatically use different lenses to perform image collection operations on the outside world according to the external environment. The appropriate lens can better focus light, reduce distortion and chromatic aberration, thereby improving the clarity and contrast of the image, and by using the corresponding lens in different environments, the overall focusing speed of the device can be improved, so as to improve the overall image collection efficiency of the device.

[0037] A reset rod 29 is fixedly provided at a position on the outer surface of the mounting plate 19 close to the lens clamping installation groove 20. The top end of the reset rod 29 movably penetrates the adjustment ring 17 and extends to the outside of the adjustment ring 17. A retaining head 30 is fixedly connected to the outer surface of the reset rod 29 located outside the adjustment ring 17. A spring 31 sleeved on the outer surface of the reset rod 29 is provided between the retaining head 30 and the adjustment ring 17, and both ends of the spring 31 are connected between the retaining head 30 and the adjustment ring 17 respectively. When the mounting plate 19 is pushed, the reset rod 29 fixed thereto and the retaining head 30 fixed on the outer surface of the reset rod 29 will move together. As the retaining head 30 moves, the spring 31 between the retaining head 30 and the adjustment ring 17 will be compressed. When the lens needs to be replaced again, with the rotation of the adjustment ring 17 and the reaction force of the compressed spring 31, the mounting plate 19 with the large aperture lens 22 fixed on its outer surface and the large aperture lens 22 can be pushed back to their original positions.

[0038] Behind the high - collection - efficiency external camera 1 is provided with an anti - dust - falling mechanism 2 during operation. The anti - dust - falling mechanism 2 during operation includes an air outlet pipe 201, two small filter - type exhaust fans 202, two connecting pipes 203, an annular pipe 204, and a plurality of L - shaped air outlet pipe heads 205. The two small filter - type exhaust fans 202 are respectively fixedly installed on both sides of the outer surface of the air outlet pipe 201. The annular pipe 204 is fixed inside the air outlet pipe 201, and the two small filter - type exhaust fans 202 are respectively communicated with the annular pipe 204 through the two connecting pipes 203;

[0039] A plurality of L - shaped air outlet pipe heads 205 are annularly and fixedly installed on the inner wall of the annular pipe 204. The anti - dust - falling mechanism 2 during operation further includes a fixed installation ring 208. In front of the fixed installation ring 208 is a circular installation groove 209 located on the rear end face of the high - collection - efficiency external camera 1, and the outer surface shape of the fixed installation ring 208 corresponds to the inner wall shape of the circular installation groove 209. When it is necessary to use the anti - dust - falling mechanism 2 during operation, the air outlet pipe 201 is fixed to the rear end face of the high - collection - efficiency external camera 1 through the fixed installation ring 208 and the circular installation groove 209. When shooting operations are carried out in an environment with a lot of dust, the small filter - type exhaust fans 202 are started. Through the small filter - type exhaust fans 202, external air can be extracted and conveyed to the inside of the annular pipe 204 through the connecting pipes 203. The air conveyed to the inside of the annular pipe 204 will be ejected from the L - shaped air outlet pipe heads 205 fixed on the inner wall of the annular pipe 204. Through the above technical solution, a circular wind force flowing backward can be continuously blown outside the rear of the image collector 5. Through this wind force, when using this device in an environment with a lot of dust, it can prevent dust from adhering to the outer surface of the lens inside the device. This structure thus ensures that the shooting effect of this device in an environment with a lot of dust will not be affected by dust.

[0040] Behind the fixed installation ring 208 is an internal - thread connection groove 206 located on the rear end face of the air outlet pipe 201. Behind the internal - thread connection groove 206 is an externally - threaded connection - type sealing cover 207, and the external thread of the externally - threaded connection - type sealing cover 207 matches the internal thread of the internal - thread connection groove 206. When the shooting operation ends, the externally - threaded connection - type sealing cover 207 is installed on the rear end face of the air outlet pipe 201 through the threaded structure to prevent dust from falling onto the outer surface of the lens when the device is not in use.

[0041] In front of the stepping motor 6 is a circular cover plate located on the outer surface of the high - collection - efficiency camera housing 32, and the high - collection - efficiency camera housing 32 and the circular cover plate are fixed by threads. Through the circular cover plate, the internal structure of the high - collection - efficiency camera housing 32 can be protected, and when a fault occurs in the internal structure of the high - collection - efficiency camera housing 32, the circular cover plate can be removed to repair the internal structure of the high - collection - efficiency camera housing 32.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A general-purpose image acquisition device capable of improving the acquisition efficiency, including a high-acquisition-efficiency external camera (1), characterized in that: The high collection efficiency external camera (1) includes a high collection efficiency camera housing (32), an image collector (5), four mounting plates (19), four lens clamping mounting grooves (20), a high light transmission lens (21), a large aperture lens (22), an anti-fog lens (23), a fixed-focus lens (24), and a sequential pushing mechanism. The image collector (5) is fixed at the middle position inside the high collection efficiency camera housing (32), and the high light transmission lens (21) is located behind the image collector (5). The four lens clamping mounting grooves (20) are respectively located on the outer surfaces of the four mounting plates (19). The high light transmission lens (21), the large aperture lens (22), the anti-fog lens (23), and the fixed-focus lens (24) are respectively fixedly clamped inside the four lens clamping mounting grooves (20). The sequential pushing mechanism can sequentially push the high light transmission lens (21), the large aperture lens (22), the anti-fog lens (23), and the fixed-focus lens (24) behind the image collector (5). A dust-proof mechanism during operation (2) is provided behind the high collection efficiency external camera (1). The dust-proof mechanism during operation (2) includes an air outlet pipe (201), two small filter type exhaust fans (202), two connecting pipes (203), a circular pipe (204), and a plurality of L-shaped air outlet pipe heads (205). The two small filter type exhaust fans (202) are respectively fixedly installed on both sides of the outer surface of the air outlet pipe (201). The circular pipe (204) is fixed inside the air outlet pipe (201), and the two small filter type exhaust fans (202) are respectively communicated with the circular pipe (204) through the two connecting pipes (203). The plurality of L-shaped air outlet pipe heads (205) are fixedly installed in a circular shape on the inner wall of the circular pipe (204).

2. The general-purpose image acquisition device capable of improving the acquisition efficiency according to claim 1, wherein: The high collection efficiency external camera (1) further includes a brightness sensor (3). A humidity sensor (4) fixedly installed on the outer surface of the high collection efficiency camera housing (32) is provided below the brightness sensor (3), and both the brightness sensor (3) and the humidity sensor (4) are electrically connected to the sequential pushing mechanism.

3. A general-purpose image acquisition device capable of improving the acquisition efficiency according to claim 1, characterized in that: The sequential pushing mechanism includes a stepping motor (6). The output shaft of the stepping motor (6) is connected to a transmission rotating shaft (7) through a coupling. A first bevel gear (8) is fixedly sleeved on one side of the outer surface of the transmission rotating shaft (7). The first bevel gear (8) meshes with a second bevel gear (9). The center of the second bevel gear (9) is connected to a first gear rotating shaft (10). A third bevel gear (11) is fixedly sleeved on one side of the outer surface of the first gear rotating shaft (10). The third bevel gear (11) meshes with a fourth bevel gear (12). The center of the fourth bevel gear (12) is connected to a second gear rotating shaft (13).

4. The general image acquisition device capable of improving the acquisition efficiency according to claim 3, wherein: On one side of the outer surface of the second gear rotating shaft (13), a small gear (14) is fixedly sleeved. The small gear (14) meshes with a medium gear (15) located outside the image collector (5), and the image collector (5) is located at the middle position inside the medium gear (15).

5. A general-purpose image acquisition device capable of improving the acquisition efficiency according to claim 4, characterized in that: Inside the medium gear (15), a roller bearing ring (16) connected to the high collection efficiency camera housing (32) through a roller bearing is fixedly provided. The rear end face of the roller bearing ring (16) is fixedly connected to an adjustment ring (17). At four end corners of the outer surface of the adjustment ring (17), a sliding installation groove (18) is provided, and four installation plates (19) are respectively slidably installed inside the four sliding installation grooves (18).

6. A general-purpose image acquisition device capable of improving the acquisition efficiency according to claim 5, characterized in that: On one side of the outer surface of the installation plate (19) is an arc head (25). At the middle position of the outer surface of the arc head (25), a semi-circular positioning groove (27) is provided. Inside the semi-circular positioning groove (27) at the uppermost position, a semi-circular positioning plate (28) is clamped. The upper end face of the semi-circular positioning plate (28) is connected to an arc-shaped pushing plate (26) fixed inside the high collection efficiency camera housing (32).

7. A general-purpose image acquisition device capable of improving the acquisition efficiency according to claim 6, characterized in that: At a position on the outer surface of the installation plate (19) close to the lens clamping installation groove (20), a reset rod (29) is fixedly provided. The top end of the reset rod (29) movably penetrates through the adjustment ring (17) and extends to the outside of the adjustment ring (17). On the outer surface of the reset rod (29) located outside the adjustment ring (17), an anti-drop head (30) is fixedly connected. Between the anti-drop head (30) and the adjustment ring (17), a spring (31) sleeved on the outer surface of the reset rod (29) is provided, and two ends of the spring (31) are respectively connected between the anti-drop head (30) and the adjustment ring (17).

8. A general-purpose image acquisition device capable of improving the acquisition efficiency according to claim 1, characterized in that: The dust-proof and anti-falling mechanism (2) during operation further includes a fixed installation ring (208). In front of the fixed installation ring (208), there is a circular installation groove (209) located at the rear end face of the high collection efficiency external camera (1), and the outer surface shape of the fixed installation ring (208) corresponds to the inner wall shape of the circular installation groove (209).

9. A general-purpose image acquisition device capable of improving the acquisition efficiency according to claim 8, characterized in that: Behind the fixed installation ring (208), there is an internal thread connection groove (206) located at the rear end face of the air outlet pipe (201). Behind the internal thread connection groove (206), there is an externally threaded sealing cover (207), and the external thread of the externally threaded sealing cover (207) matches the internal thread of the internal thread connection groove (206).

10. A general-purpose image acquisition device capable of improving the acquisition efficiency according to claim 3, characterized in that: In front of the stepping motor (6), there is a circular cover plate located on the outer surface of the high collection efficiency camera housing (32), and the high collection efficiency camera housing (32) and the circular cover plate are fixed through threads.

Images