Laser base for laser angle adjusting mechanism

Abstract

The invention discloses a laser base for a laser angle adjusting mechanism, and relates to the technical field of laser bases, the laser base comprises a movable base, a connecting seat is rotatably mounted at the top of the movable base, a lifting device is fixedly mounted at the top of the connecting seat, and a mounting plate is fixedly mounted at the output end of the lifting device; a pushing device is rotationally mounted at the top of the movable base, the output end of the pushing device is rotationally connected with the connecting base, and a protection device is arranged on the surface of the connecting base; wherein the protection device comprises a fixing plate, an L-shaped air cylinder, a sealing plate, a connecting rod, a hollow frame, a swing plate, an L-shaped plate and an elastic plate, the fixing plate is fixedly installed on the surface of the connecting base, the situation that a mounting plate rapidly descends to the bottom to damage a laser is avoided, and meanwhile when the mounting plate rotates, a linkage rod can pull a piston rod to move; meanwhile, the rotating speed of the mounting plate and the laser can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of laser bases, in particular to a laser base used for a laser angle adjustment mechanism. Background Art

[0002] The laser base is an important component of the laser system. It is used to support and fix the main structure of the laser and provide a stable foundation to ensure the accuracy and stability of the laser.

[0003] The patent with patent announcement number CN213018581U relates to a rotating base for a large-ball laser, including a laser body and a base. The middle part of the lower end of the laser body is fixedly connected to a support rod, and the support rod is slidably connected to a support tube. A connecting groove is provided in the base, and a receiving groove is provided in the base near the lower end of the connecting groove. The receiving groove and the connecting groove are connected. The lower end of the support tube passes through the connecting groove and is fixedly connected to a connecting block. Both sides of the lower end of the connecting block are fixedly connected to the first roller. An auxiliary groove is provided in the base. The beneficial effect of this patent is that the laser at the upper end of the support rod can be adjusted through the provided connecting rod, slider, second roller, connecting block and first roller structure, so that the laser can be easily adjusted during use, avoiding the trouble of multiple disassembly and increasing the service life of the laser. In addition, the provided threaded rod, threaded groove, limit frame and handle structure can fix the laser after angle adjustment on the base to avoid rotation during use.

[0004] In the above patent, the laser can be easily adjusted during use, avoiding the trouble of multiple disassembly and increasing the service life of the laser. The threaded rod, threaded groove, limit frame and handle structure can fix the laser after angle adjustment on the base to avoid rotation during use. However, the working height and angle of the laser need to be adjusted during use. If the base supporting the laser is damaged and the laser moves downward rapidly, it will damage the laser. At the same time, the laser is easily damaged when the angle is adjusted rapidly. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a laser base for a laser angle adjustment mechanism, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a laser base for a laser angle adjustment mechanism, comprising a movable base, a connecting base is rotatably mounted on the top of the movable base, a lifting device is fixedly mounted on the top of the connecting base, a mounting plate is fixedly mounted on the output end of the lifting device, a pushing device is rotatably mounted on the top of the movable base, the output end of the pushing device is rotatably connected to the connecting base, and a protective device is provided on the surface of the connecting base; wherein the protective device comprises a fixed plate, an L-shaped cylinder, a sealing plate, a connecting rod, a hollow frame, a swing plate, an L-shaped plate and an elastic plate, the fixed plate is fixedly mounted on the surface of the connecting base, the L-shaped cylinder is fixedly mounted on the fixed plate The top of the fixed plate, the sealing plate is slidably installed in the interior of the L-shaped cylinder, the connecting rod is fixedly installed on the top of the sealing plate, the hollow frame is fixedly installed on the bottom of the mounting plate, the surface of the hollow frame is provided with an exhaust port, the swing plate is rotatably installed on the bottom of the mounting plate, the L-shaped plate is slidably installed on the top of the L-shaped cylinder, the elastic plate is fixedly installed on the left side of the L-shaped plate, a groove is provided on the surface of the connecting rod, the L-shaped cylinder is connected with the interior of the hollow frame through a pipe, and the mounting plate moves downward quickly to drive the connecting rod and the sealing plate to move downward. When the sealing plate moves downward, it squeezes the air inside the L-shaped cylinder into the interior of the hollow frame through the pipe, and the air inside the hollow frame is discharged through the exhaust port.

[0007] According to the above technical solution, a No. 1 torsion spring is provided between the swing plate and the mounting plate, and a No. 1 spring is provided between the L-shaped plate and the L-shaped cylinder. The elastic force of the No. 1 spring will drive the L-shaped plate to reset. The top of the L-shaped plate can be extended and retracted and has elasticity. The retractable end of the top of the L-shaped plate is fixed to the bottom of the mounting plate.

[0008] According to the above technical solution, a piston rod is slidably installed inside the L-shaped cylinder, a fixing frame is fixedly installed on the top of the movable base, the fixing frame is hinged to one end of the linkage rod, and the other end of the linkage rod is hinged to the piston rod. When the mounting plate rotates, the linkage rod will pull the piston rod to move, and at the same time, the rotation speed of the mounting plate and the laser can be reduced to avoid damage to the laser caused by excessive rotation of the connecting seat and the mounting plate.

[0009] According to the above technical solution, an L-shaped tube is fixedly installed on the surface of the L-shaped cylinder, and the exhaust port is in contact with the swing plate. The L-shaped tube can freely connect the L-shaped cylinders together, so that when the piston rod moves to the left inside the L-shaped cylinder, the piston rod will squeeze the air on the left side of the piston rod to re-enter the interior of the L-shaped cylinder and enter the pipeline.

[0010] According to the above technical solution, the surface of the hollow frame is provided with an auxiliary support device for preventing the laser from moving downward rapidly and causing damage, and the surface of the fixed plate is provided with an anti-dumping device, and the auxiliary support device includes a movable plate, a pushing rod, a forked plate, an installation frame, a placement rack and a cross plate. The increase in air pressure inside the hollow frame will push the movable plate to move upward, and the upward movement of the movable plate will drive the pushing rod to move upward, and the upward movement of the pushing rod will push the forked plate to move upward, and the upward movement of the forked plate will push the cross plate to move upward, and the movable plate is slidably installed inside the hollow frame, and the pushing rod is fixedly installed on the top of the movable plate. A cavity is opened on the top of the installation plate, and the forked plate slides through the bottom of the cavity, and the installation frame is fixedly installed on the top of the installation plate, and the placement rack is slidably installed inside the installation frame, and the bottom of the placement rack is fixedly installed with a cross plate by a spring clip.

[0011] According to the above technical solution, the transverse plate contacts the bifurcated plate, and a No. 2 spring is provided between the movable plate and the hollow frame. The elastic force of the No. 2 spring drives the movable plate to reset.

[0012] According to the above technical solution, the anti-dumping device includes a bent rod, a circular block, an elastic telescopic rod, a concave plate, a limit frame and a circular frame. The connecting seat and the L-shaped cylinder will excessively rotate. When the L-shaped cylinder excessively rotates, the piston rod will push the bent rod to move toward the outside of the L-shaped cylinder. The movement of the bent rod will drive the circular block to move. When the circular block moves, it will contact the inclined surface of the concave plate, so that when the circular block moves, it will push the concave plate to move downward. The bent rod slides through the inner and outer walls of the L-shaped cylinder, the circular block is fixedly installed on the surface of the bent rod, the elastic telescopic rod is fixedly installed on the bottom of the fixed plate, the concave plate is fixedly installed on the free end of the elastic telescopic rod, the limit frame is slidably installed on the bottom of the fixed plate, the circular frame is slidably installed on the bottom of the connecting seat, and a card groove is opened on the surface of the circular frame.

[0013] According to the above technical solution, a No. 3 spring is arranged between the bending rod and the L-shaped cylinder, a No. 4 spring is arranged between the limit frame and the fixed plate, and a reset spring is arranged between the circular frame and the connecting seat. The elastic force of the No. 3 spring will drive the bending rod to reset.

[0014] The present invention provides a laser base for a laser angle adjustment mechanism. It has the following beneficial effects: In this invention, when the lifting device is damaged and the mounting plate moves downward rapidly, the rapid downward movement of the mounting plate will drive the connecting rod and the sealing plate to move downward, and the sealing plate will squeeze the air inside the L-shaped cylinder into the interior of the hollow frame. The exhaust port on the surface of the hollow frame will reduce the speed of gas discharge, thereby reducing the speed of the mounting plate moving downward. At the same time, the rapid exhaust of the exhaust port will blow the swing plate to rotate, and the swing plate will push the L-shaped plate and the elastic plate to move. The elastic plate will be inserted into the inside of the groove to further reduce the descending speed of the mounting plate, thereby preventing the mounting plate from rapidly descending to the bottom and causing damage to the laser. At the same time, when the mounting plate rotates, the linkage rod will pull the piston rod to move, and at the same time, the rotation speed of the mounting plate and the laser can be reduced.

[0015] In this invention, when the mounting plate moves downward rapidly, the exhaust port cannot discharge the gas in time, and the increased air pressure inside the hollow frame will push the movable plate and the push rod upward. The upward movement of the push rod will push the bifurcated plate and the cross plate upward. The upward movement of the cross plate will push the spring clip and the placement rack upward, thereby raising the placement rack and the laser. When the mounting plate moves to the bottom, the spring clip can buffer the placement rack and the spring clip, preventing the laser from following the mounting plate directly to the bottom and causing a collision. When the mounting plate does not move downward rapidly, the bottom of the placement rack will fit inside the mounting frame and will not affect the stability of the placement rack.

[0016] In this invention, when the pushing device damages the connecting seat and the mounting plate rotates excessively to the left and right, the piston rod will push the bending rod to move. When the bending rod moves, the circular block will push the concave plate to move downward. The downward movement of the concave plate will release the limit on the limit frame. The movement of the limit frame will release the limit on the circular frame. When the circular frame moves downward, the reverse force will support the connecting seat and the mounting plate to prevent the mounting plate from tipping over and damaging the laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of an L-shaped cylinder of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure of part A in the middle; Figure 5 This is a schematic diagram of the position structure of the fixing plate and the limiting frame of the present invention; Figure 6 This is a schematic diagram of the position structure of the L-shaped cylinder and the bending rod of the present invention; Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure of part B.

[0018] In the figure: 1. Mobile base; 2. Connecting seat; 3. Lifting device; 4. Mounting plate; 5. Pushing device; 6. Fixed plate; 7. L-shaped cylinder; 8. Sealing plate; 9. Connecting rod; 10. Hollow frame; 11. Swinging plate; 12. L-shaped plate; 13. Elastic plate; 14. Fixed frame; 15. Piston rod; 16. Linkage rod; 171. Movable plate; 172. Pushing rod; 173. Forked plate; 174. Mounting frame; 175. Placement frame; 176. Horizontal plate; 181. Bending rod; 182. Round block; 183. Elastic telescopic rod; 184. Concave plate; 185. Limiting frame; 186. Round frame. DETAILED DESCRIPTION

[0019] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7 One embodiment of the present invention is: a laser base for a laser angle adjustment mechanism, comprising a movable base 1, a connecting base 2 is rotatably mounted on the top of the movable base 1, a lifting device 3 is fixedly mounted on the top of the connecting base 2, a mounting plate 4 is fixedly mounted on the output end of the lifting device 3, a pushing device 5 is rotatably mounted on the top of the movable base 1, the output end of the pushing device 5 is rotatably connected to the connecting base 2, and a protective device is provided on the surface of the connecting base 2; wherein the protective device comprises a fixed plate 6, an L-shaped cylinder 7, a sealing plate 8, a connecting rod 9, a hollow frame 10, a swing plate 11, an L-shaped plate 12 and an elastic plate 13, the fixed plate 6 is fixedly mounted on the surface of the connecting base 2, the L-shaped cylinder 7 is fixedly mounted on the top of the fixed plate 6, and the sealing plate 8 is slidably mounted inside the L-shaped cylinder 7 , the connecting rod 9 is fixedly mounted on the top of the sealing plate 8, the hollow frame 10 is fixedly mounted on the bottom of the mounting plate 4, the surface of the hollow frame 10 is provided with an exhaust port, the swing plate 11 is rotatably mounted on the bottom of the mounting plate 4, the L-shaped plate 12 is slidably mounted on the top of the L-shaped cylinder 7, and the elastic plate 13 is fixedly mounted on the left side of the L-shaped plate 12. A groove is provided on the surface of the connecting rod 9, and the L-shaped cylinder 7 is connected with the interior of the hollow frame 10 through a pipe. The exhaust port on the surface of the hollow frame 10 will reduce the speed of gas discharge, thereby reducing the speed at which the mounting plate 4 moves downward. At the same time, the rapid exhaust of the exhaust port will blow the swing plate 11 to rotate, and the swing plate 11 will push the L-shaped plate 12 and the elastic plate 13 to move. The elastic plate 13 will be inserted into the inside of the groove to further reduce the descending speed of the mounting plate 4.

[0021] A No. 1 torsion spring is arranged between the swing plate 11 and the mounting plate 4, and a No. 1 spring is arranged between the L-shaped plate 12 and the L-shaped cylinder 7. The elastic force of the No. 1 spring will drive the L-shaped plate 12 to reset. The top of the L-shaped plate 12 can be telescopic and elastic, and the telescopic end of the top of the L-shaped plate 12 is fixed to the bottom of the mounting plate 4.

[0022] A piston rod 15 is slidably installed inside the L-shaped cylinder 7, and a fixing frame 14 is fixedly installed on the top of the movable base 1. The fixing frame 14 is hinged to one end of the linkage rod 16, and the other end of the linkage rod 16 is hinged to the piston rod 15. When the mounting plate 4 rotates, the linkage rod 16 will pull the piston rod 15 to move, and at the same time, the rotation speed of the mounting plate 4 and the laser can be reduced to avoid damage to the laser caused by excessive rotation of the connecting seat 2 and the mounting plate 4.

[0023] An L-shaped tube is fixedly installed on the surface of the L-shaped cylinder 7, and the exhaust port is in contact with the swing plate 11. The L-shaped tube can connect the free parts of the L-shaped cylinder 7 together, so that when the piston rod 15 moves to the left inside the L-shaped cylinder 7, the piston rod 15 will squeeze the air on the left side of the piston rod 15 to re-enter the interior of the L-shaped cylinder 7 and enter the pipeline.

[0024] When this embodiment is working: the lifting device 3 is damaged and cannot support the mounting plate 4, and the gravity of the mounting plate 4 and the laser will cause the mounting plate 4 to move downward quickly. The rapid downward movement of the mounting plate 4 will drive the connecting rod 9 and the sealing plate 8 to move downward. When the sealing plate 8 moves downward, it will squeeze the air inside the L-shaped cylinder 7 into the interior of the hollow frame 10 through the pipe, and the air inside the hollow frame 10 will be discharged through the exhaust port. The exhaust from the smaller exhaust port will reduce the exhaust speed inside the hollow frame 10. The slow discharge of air from the hollow frame 10 and the L-shaped cylinder 7 will reduce the descending speed of the sealing plate 8, the connecting rod 9 and the mounting plate 4. The swing plate 11, the L-shaped plate 12 and the elastic plate 13 are all made of lightweight materials. When the air pressure ejected from the exhaust port is too high, it will blow the swing plate 11 When the connecting rod 9 is lowered, the lifting device 3 and the mounting plate 4 are lowered, and the angles of the connecting seat 2, the lifting device 3 and the mounting plate 4 are adjusted. The rotation of the connecting seat 2 drives the fixed plate 6 and the L-shaped cylinder 7 to rotate. When the L-shaped cylinder 7 rotates, the fixing frame 14 and the linkage rod 16 pull the piston rod 15 to move. When the piston rod 15 moves, the air inside the L-shaped cylinder 7 is squeezed into the interior of the hollow frame 10 through the pipe, thereby reducing the rotation speed of the connecting seat 2.

[0025] See also Figure 1-Figure 7, Based on the above embodiment, in another embodiment of the present invention, the surface of the hollow frame 10 is provided with an auxiliary support device for preventing the laser from being damaged by rapid downward movement, and the surface of the fixed plate 6 is provided with an anti-dumping device, the auxiliary support device includes a movable plate 171, a push rod 172, a fork plate 173, a mounting frame 174, a placement rack 175 and a cross plate 176. When the mounting plate 4 moves to the bottom, the spring can buffer the placement rack 175 and the spring. When the mounting plate 4 does not move downward quickly, the bottom of the placement rack 175 will fit into the inside of the mounting frame 174 and will not affect the stability of the placement rack 175. The movable plate 171 is slidably installed in the interior of the hollow frame 10, the push rod 172 is fixedly installed on the top of the movable plate 171, a cavity is opened on the top of the mounting plate 4, the fork plate 173 slides through the bottom of the cavity, the mounting frame 174 is fixedly installed on the top of the mounting plate 4, the placement rack 175 is slidably installed in the interior of the mounting frame 174, and the bottom of the placement rack 175 is fixedly installed with a cross plate 176 by a spring.

[0026] The horizontal plate 176 contacts the bifurcated plate 173 , and a No. 2 spring is provided between the movable plate 171 and the hollow frame 10 . The elastic force of the No. 2 spring drives the movable plate 171 to reset.

[0027] The anti-dumping device includes a bent rod 181, a circular block 182, an elastic telescopic rod 183, a concave plate 184, a limit frame 185 and a circular frame 186. The movement of the limit frame 185 will release the limit on the circular frame 186. When the circular frame 186 moves downward, the reverse force will support the connecting seat 2 and the mounting plate 4 to prevent the mounting plate 4 from tipping over and damaging the laser. The bent rod 181 slides through the inner and outer walls of the L-shaped cylinder 7, the circular block 182 is fixedly mounted on the surface of the bent rod 181, the elastic telescopic rod 183 is fixedly mounted on the bottom of the fixed plate 6, the concave plate 184 is fixedly mounted on the free end of the elastic telescopic rod 183, the limit frame 185 is slidably mounted on the bottom of the fixed plate 6, the circular frame 186 is slidably mounted on the bottom of the connecting seat 2, and a card slot is provided on the surface of the circular frame 186.

[0028] A No. 3 spring is arranged between the bending rod 181 and the L-shaped cylinder 7, a No. 4 spring is arranged between the limit frame 185 and the fixed plate 6, and a reset spring is arranged between the circular frame 186 and the connecting seat 2. The elastic force of the No. 3 spring will drive the bending rod 181 to reset.

[0029] When this embodiment is working: when the air inside the hollow frame 10 cannot be discharged in time, the air pressure inside the hollow frame 10 will gradually increase, and the increase in the air pressure inside the hollow frame 10 will push the movable plate 171 to move upward, and the upward movement of the movable plate 171 will drive the push rod 172 to move upward, and the upward movement of the push rod 172 will push the bifurcated plate 173 to move upward, and the upward movement of the bifurcated plate 173 will push the cross plate 176 to move upward, and the upward movement of the cross plate 176 will push the spring piece and the placement rack 175 to move upward, and the upward movement of the placement rack 175 will apply an upward force to the laser, and the bottom of the placement rack 175 will be out of contact with the mounting frame 174; When the pushing device 5 is damaged and cannot support the connecting seat 2, the connecting seat 2 and the L-shaped cylinder 7 will rotate excessively. When the L-shaped cylinder 7 rotates excessively, the piston rod 15 will push the bent rod 181 to move toward the outside of the L-shaped cylinder 7. The movement of the bent rod 181 will drive the circular block 182 to move. When the circular block 182 moves, it will contact the inclined surface of the concave plate 184, so that when the circular block 182 moves, it will push the concave plate 184 to move downward. When the concave plate 184 moves downward, it will be separated from the limit frame. The contact of the concave plate 184 with the limit frame 185 will release the limit on the limit frame 185. Under the elastic force of the No. 4 spring, the limit frame 185 will move away from the circular frame 186. The movement of the limit frame 185 will disengage from the card slot and release the limit on the circular frame 186. The circular frame 186 will move downward under the action of the reset spring. The circular frame 186 moves downward and contacts with the movable base 1. The force of the movable base 1 on the circular frame 186 will push the connecting base 2 to stand up to prevent the connecting base 2 and the mounting plate 4 from tipping over.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A laser base for a laser angle adjustment mechanism, comprising a movable base, characterized in that: A connecting seat is rotatably mounted on the top of the mobile base, a lifting device is fixedly mounted on the top of the connecting seat, a mounting plate is fixedly mounted on the output end of the lifting device, a pushing device is rotatably mounted on the top of the mobile base, the output end of the pushing device is rotatably connected to the connecting seat, and a protective device is provided on the surface of the connecting seat; Wherein, the protective device includes a fixed plate, an L-shaped cylinder, a sealing plate, a connecting rod, a hollow frame, a swinging plate, an L-shaped plate and an elastic plate, the fixed plate is fixedly mounted on the surface of the connecting seat, the L-shaped cylinder is fixedly mounted on the top of the fixed plate, the sealing plate is slidably mounted inside the L-shaped cylinder, the connecting rod is fixedly mounted on the top of the sealing plate, the hollow frame is fixedly mounted on the bottom of the mounting plate, an exhaust port is provided on the surface of the hollow frame, the swinging plate is rotatably mounted on the bottom of the mounting plate, the L-shaped plate is slidably mounted on the top of the L-shaped cylinder, the elastic plate is fixedly mounted on the left side of the L-shaped plate, a groove is provided on the surface of the connecting rod, and the L-shaped cylinder is connected to the interior of the hollow frame through a pipe; The surface of the hollow frame is provided with an auxiliary support device for preventing the laser from being damaged by rapid downward movement, and the surface of the fixed plate is provided with an anti-dumping device.

2. The laser base for a laser angle adjustment mechanism according to claim 1, characterized in that: A No. 1 torsion spring is provided between the swing plate and the mounting plate, and a No. 1 spring is provided between the L-shaped plate and the L-shaped cylinder.

3. The laser base for a laser angle adjustment mechanism according to claim 2, characterized in that: A piston rod is slidably installed inside the L-shaped cylinder, and a fixing frame is fixedly installed on the top of the movable base. The fixing frame is hinged to one end of the linkage rod, and the other end of the linkage rod is hinged to the piston rod.

4. The laser base for a laser angle adjustment mechanism according to claim 3, characterized in that: An L-shaped pipe is fixedly mounted on the surface of the L-shaped cylinder, and the exhaust port is in contact with the swing plate.

5. The laser base for a laser angle adjustment mechanism according to claim 4, characterized in that: The auxiliary support device includes a movable plate, a pushing rod, a bifurcated plate, a mounting frame, a placement rack and a cross plate. The movable plate is slidably mounted inside the hollow frame, the pushing rod is fixedly mounted on the top of the movable plate, a cavity is opened on the top of the mounting plate, the bifurcated plate slides through the bottom of the cavity, the mounting frame is fixedly mounted on the top of the mounting plate, the placement rack is slidably mounted inside the mounting frame, and the bottom of the placement rack is fixedly mounted with a cross plate by a spring clip.

6. The laser base for a laser angle adjustment mechanism according to claim 5, characterized in that: The transverse plate is in contact with the bifurcated plate, and a No. 2 spring is provided between the movable plate and the hollow frame.

7. The laser base for a laser angle adjustment mechanism according to claim 6, characterized in that: The anti-dumping device includes a bent rod, a circular block, an elastic telescopic rod, a concave plate, a limit frame and a circular frame. The bent rod slides through the inner and outer walls of the L-shaped cylinder, the circular block is fixedly installed on the surface of the bent rod, the elastic telescopic rod is fixedly installed on the bottom of the fixed plate, the concave plate is fixedly installed on the free end of the elastic telescopic rod, the limit frame is slidably installed on the bottom of the fixed plate, the circular frame is slidably installed on the bottom of the connecting seat, and a card slot is opened on the surface of the circular frame.

8. The laser base for a laser angle adjustment mechanism according to claim 7, characterized in that: A No. 3 spring is provided between the bending rod and the L-shaped cylinder, a No. 4 spring is provided between the limiting frame and the fixing plate, and a reset spring is provided between the circular frame and the connecting seat.

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