Rocker arm device capable of expanding observation range

Abstract

The utility model provides a rocker arm device capable of expanding an observation range, which comprises a left side arm and a right side arm which are arranged at two sides of a lens group and rotate, a rotating shaft is arranged between the end parts of the left side arm and the right side arm, and a reflector group is fixedly arranged on the rotating shaft; the two ends of the rotating shaft are fixed to the ends of the left side arm and the right side arm through shaft sleeves, a connecting rod is fixedly arranged between the bottoms of the left side arm and the right side arm, and a screw in threaded connection is arranged at the tail of the end, on the lens set, of the left side arm and abuts against the lens set. The whole device is compact in design, small in occupied space and convenient to install and carry.

Description

Technical Field

[0001] The utility model relates to the field of observation, and particularly relates to a boom device capable of expanding the observation range. Background Art

[0002] At present, the methods for expanding the observation range of erection-type observation equipment can be roughly divided into two categories. The first category is purely mechanical, where manual rotation of the equipment is used to adjust the rotation amounts in the up, down, left, and right directions to view the target to be observed. This method has two defects: First, the equipment uses the ball joint structure principle to ensure that the lens can rotate within a certain range, but due to structural limitations, it cannot ensure that the equipment lens rotates completely 360°. There must be a limit structure during rotation to prevent it from exceeding the limit position, thus reaching the boundary point of the observation range. Although the observation field of view can be designed to be very large, it is not fully covered, and the observation range can be further expanded by adding a boom structure. Second, when this mechanical structure is applied to large erection-type equipment, it is very strenuous for operators to use. Therefore, almost all large-scale observation equipment uses electric control for rotation, and the usage conditions have certain limitations. However, the boom structure is very light and can be applied to large, medium, and small-sized equipment. The second category is electric control rotation to adjust the observation field of view. During product design, the designer pre-considers the required observation field of view of the product, and uses the methods of azimuth rotation and pitch rotation, driving the pitch axis or azimuth axis to rotate with a motor, and rotating the lens to the specified angle to observe the target. This method has the following three deficiencies: First, it is necessary to drive the equipment to rotate through the motor. If the equipment motor is damaged or there is a signal communication failure, the observation range cannot be expanded, and only the things in the current range can be observed, which requires certain necessary conditions during use. Second, the observation range is still limited to a certain extent. For example, due to space limitations, a conductive slip ring is often not installed in the pitch part, so the pitch cannot rotate 360° to avoid winding of the internal cables. Secondly, the pitch bracket has a certain blockage to the lens. Usually, the pitch angle of the equipment is in the range of -30° to 70°, so the observation range in the pitch direction cannot be fully covered, and a boom structure can also be added to expand the observation range. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a boom device capable of expanding the observation range to solve the problems in the above background art.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: It includes a left arm and a right arm that rotate on both sides of the lens group. A rotating shaft is provided between the ends of the left arm and the right arm, and a reflector group is fixedly provided on the rotating shaft.

[0005] Both ends of the rotating shaft are fixed to the ends of the left arm and the right arm through shaft sleeves. A connecting rod is fixedly provided between the bottoms of the left arm and the right arm. A screw connected by thread is provided at the end of the left arm on the lens group, and the screw abuts against the lens group.

[0006] Preferably, the ends of the left arm and the right arm are fixed to the lens group by pins and rotate thereon.

[0007] Preferably, U-shaped card slots are provided at the ends of the left arm and the right arm, the bushing abuts against the card slots, and they are fixedly connected by bolts.

[0008] Preferably, a handwheel is fixedly provided at one end of the rotating shaft, and rotating the handwheel can drive the rotating shaft and the mirror group to rotate.

[0009] Preferably, mirrors are provided on both sides of the fixed frame in the mirror group, a cover plate is provided on the mirror, and the cover plate is connected to the fixed frame by bolts for fixing the mirror on the fixed frame;

[0010] The rotating shaft penetrates through the middle of the fixed frame and is connected to the fixed frame by a cylindrical pin.

[0011] Preferably, a locking screw is threadedly connected to the bushing, and the end of the locking screw abuts against the rotating shaft to fix the mirror group after rotation adjustment.

[0012] The utility model provides a swing arm device capable of expanding the observation range, and the beneficial effects are as follows:

[0013] 1. The bushing reduces the friction between the rotating shaft and the left arm and the right arm, ensuring smooth rotation. The design of the locking screw enables the rotating shaft to be firmly fixed after adjusting the angle of the mirror group, preventing accidental rotation during use. The U-shaped card slot and bolt fixation method ensure the stability of the bushing in the card slot and prevent it from shifting during rotation.

[0014] 2. The design of the handwheel enables the user to precisely adjust the angle of the mirror group by manual rotation, achieving high-precision observation. Fixing the rotating shaft with the locking screw ensures that the adjusted angle will not change, improving the accuracy of observation.

[0015] 3. The user can adjust the angle through the handwheel and then fix it with the locking screw. The operation is simple and intuitive, without the need for complex tools or steps. Bolt-fixed cover plate: The cover plate is connected to the fixed frame by bolts, facilitating disassembly and maintenance, and increasing the flexibility and maintainability of the device.

[0016] 4. The overall design of the device is compact, occupying a small space and being convenient for installation and carrying. The design of the U-shaped card slot and the bushing makes the device structure more compact, improving portability. When the user needs to readjust the angle, the screw can be easily loosened for new adjustment, increasing the flexibility and maintainability of the device. Bolt-fixed cover plate: The design of the cover plate makes the disassembly and replacement of the mirror more convenient, facilitating maintenance.

[0017] 5. Through the combination of the handwheel and the locking screw, users can make multi-angle adjustments to meet different observation needs. This design is not only applicable to static observations but also can be used in dynamic environments, such as real-time adjustments on a moving platform, to adapt to various observation scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0019] Figure 1 is an axonometric view of the overall structure of the present utility model;

[0020] Figure 2 is a sectional view of the installation of the mirror group of the present utility model;

[0021] Figure 3 is a front sectional view of the mirror group of the present utility model;

[0022] Figure 4 is a schematic diagram of the installation of the device of the present utility model;

[0023] In the figure: left arm 1; right arm 2; mirror group 3; fixed frame 301; cover plate 302; mirror 303; rotating shaft 4; bushing 5; handwheel 6; connecting rod 7; screw 8; pin shaft 9; lens group 10; dowel pin 11. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] As Figures 1 to 4 shown, a swing arm device capable of expanding the observation range includes a left arm 1 and a right arm 2 that rotate on both sides of the lens group 10. A rotating shaft 4 is provided between the ends of the left arm 1 and the right arm 2, and a mirror group 3 is fixedly provided on the rotating shaft 4;

[0025] Both ends of the rotating shaft 4 are fixed to the ends of the left arm 1 and the right arm 2 through bushings 5. A connecting rod 7 is fixedly provided between the bottoms of the left arm 1 and the right arm 2. A screw 8 connected by thread is provided at the end of the left arm 1 on the lens group 10, and the screw 8 abuts against the lens group 10.

[0026] By rotating the left arm 1 and the right arm 2, the mirror group 3 is driven to adjust its orientation in front of the lens of the observation device. The independent rotation of the mirror group 3 can also adjust the reflection angle to reach the required position for observation; after the rotation adjustment of the left arm 1 and the right arm 2 is in place, the rotation is fixed by abutting the screw 8 against the lens group 10.

[0027] The mirror group 3 is installed on the rotating shaft 4 and can change its position as the rotating shaft 4 rotates, thereby changing the reflection direction of light. This enables users to adjust the observation direction and angle according to needs, increasing the flexibility of observation.

[0028] The left arm 1 and the right arm 2 can rotate around the lens group 10. This design allows the mirror group 3 to move within a wider area, further expanding the observation range. By adjusting the angles of the left and right arms, objects that are far away or difficult to directly observe can be reflected into the lens.

[0029] When the appropriate observation angle is found, the positions of the left and right arms can be locked by tightening the screw 8 located on the left arm 1 to ensure that the device remains stable during use and will not change angles due to external factors.

[0030] The connecting rod 7 connects the bottoms of the left arm 1 and the right arm 2, which helps to enhance the structural stability of the entire device. At the same time, it ensures the synchronous movement of the two arms, avoiding offset or damage caused by uneven unilateral force. In summary, this rocker arm device can not only effectively expand the viewing range of the observation equipment, but also has good operability and stability, and is suitable for various scenarios that require remote or specific-angle observation.

[0031] Preferably, the ends of the left arm 1 and the right arm 2 are fixed to the lens group 10 by pins 11 for rotation. The left arm 1 and the right arm 2 are installed on both sides of the lens group 10 and are connected and fixed by pins 11 to ensure flexible rotation. Connecting the left arm 1 and the right arm 2 to the lens group 10 by pins 11 not only improves the rotational flexibility and structural stability of the device, but also simplifies the installation process, enabling users to use and maintain this rocker arm device more conveniently. This design is particularly suitable for application scenarios that require frequent adjustment of the observation angle, such as field investigations, security monitoring, etc.

[0032] Preferably, U-shaped card slots are provided at the ends of the left arm 1 and the right arm 2. The bushing 5 abuts against the card slots and is fixedly connected by bolts. The design of the U-shaped card slots ensures the stable placement of the bushing 5, preventing it from displacing during rotation and improving the stability of the overall device. The bushing 5 reduces the friction between the rotating shaft 4 and the left arm 1 and the right arm 2, making the rotation of the mirror group 3 smoother, and improving the accuracy and flexibility of observation. Using bolts to fix the bushing 5 makes it more convenient when the device needs maintenance or component replacement, and users can easily disassemble and reinstall it.

[0033] Preferably, a handwheel 6 is fixedly provided at one end of the rotating shaft 4. Rotating the handwheel 6 can drive the rotating shaft 4 and the mirror group 3 to rotate. The handwheel 6 is fixedly provided at one end of the rotating shaft 4, and users can drive the rotation of the rotating shaft 4 by rotating the handwheel 6. The handwheel 6 is usually designed with a relatively large diameter and an appropriate gripping surface so that users can more easily apply torque for fine angle adjustment.

[0034] Preferably, reflectors 303 are provided on both sides of the fixed frame 301 in the mirror group 3, and a cover plate 302 is provided on the reflector 303. The cover plate 302 is connected to the fixed frame 301 by bolts to fix the reflector 303 on the fixed frame 301;

[0035] The rotating shaft 4 penetrates through the middle of the fixed frame 301 and is connected to the fixed frame 301 by a cylindrical pin.

[0036] The fixing method of the cover plate 302 and the bolts ensures the stability of the reflector 303 in the fixed frame 301 and prevents loosening or falling off during use. The connection method of the cylindrical pin ensures the stable connection between the rotating shaft 4 and the fixed frame 301 and improves the reliability of the overall device.

[0037] The rotating shaft 4 drives the fixed frame 301 and the reflector 303 to rotate through the handwheel 6. The user can make precise angle adjustments through the handwheel 6 to meet different observation needs. The bolt connection method of the cover plate 302 also facilitates the disassembly and replacement of the reflector 303 when needed, increasing the flexibility and maintainability of the device.

[0038] The entire mirror group 3 is designed compactly, occupies little space, and is convenient for installation and carrying. The user can easily adjust the angle of the reflector 303 through the handwheel 6, and the operation is simple and intuitive, improving the convenience of use.

[0039] Preferably, a locking screw is provided on the bushing 5 by threaded connection, and the end of the locking screw abuts against the rotating shaft 4 to fix the mirror group 3 after rotation adjustment.

[0040] The design of the locking screw ensures that the rotating shaft 4 can be firmly fixed after the angle of the mirror group 3 is adjusted, preventing accidental rotation during use and improving the stability of observation. The user can make precise angle adjustments through the handwheel 6 and then fix it with the locking screw to ensure that the adjusted angle will not change, improving the accuracy of observation.

[0041] Through the combination of the handwheel 6 and the locking screw, the user can conveniently make angle adjustments and fix them, and the operation is simple and intuitive. The entire device is designed compactly, occupies little space, and is convenient for installation and carrying. The design of the locking screw enables the user to easily loosen the screw when the angle needs to be readjusted for new adjustments, increasing the flexibility and maintainability of the device.

[0042] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations to the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A swing arm device capable of expanding the observation range, characterized in that: It includes a left arm (1) and a right arm (2) that rotate on both sides of the lens group (10). A rotating shaft (4) is provided between the ends of the left arm (1) and the right arm (2). A mirror group (3) is fixedly provided on the rotating shaft (4). Both ends of the rotating shaft (4) are fixed to the ends of the left arm (1) and the right arm (2) through shaft sleeves (5). A connecting rod (7) is fixedly provided between the bottoms of the left arm (1) and the right arm (2). A screw (8) connected by thread is provided at the tail end of one end of the left arm (1) on the lens group (10), and the screw (8) abuts against the lens group (10).

2. The swing arm device capable of expanding the observation range according to claim 1, wherein: The ends of the left arm (1) and the right arm (2) are fixed to rotate on the lens group (10) through pins (11).

3. The swing arm device capable of expanding the observation range according to claim 1, wherein: U-shaped card slots are provided at the ends of the left arm (1) and the right arm (2). The shaft sleeve (5) abuts against the card slots and is fixedly connected by bolts.

4. The swing arm device capable of expanding the observation range according to claim 1, wherein: the rotating shaft A handwheel (6) is fixedly provided at one end of (4). Rotating the handwheel (6) can drive the rotating shaft (4) and the mirror group (3) to rotate.

5. The swing arm device capable of expanding the observation range according to claim 1, wherein: On both sides of the fixed frame (301) in the mirror group (3), there are mirrors (303). A cover plate (302) is provided on the mirror (303). The cover plate (302) is connected to the fixed frame (301) by bolts for fixing the mirror (303) on the fixed frame (301). The rotating shaft (4) penetrates through the middle of the fixed frame (301) and is connected to the fixed frame (301) by a cylindrical pin.

6. The swing arm device capable of expanding the observation range according to claim 1, wherein: Threaded locking screws are provided on the shaft sleeve (5). The ends of the locking screws abut against the rotating shaft (4) to fix the mirror group (3) after rotation adjustment.

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