Stacker frame laser detection device

Abstract

The invention relates to the technical field of laser detection angle adjustment, and discloses a stacker frame laser detection device which comprises transmission equipment, a detection box installed on the outer side of a transmission equipment shell and a laser detection lamp used for detecting a frame. A control rod used for controlling the laser detection lamp to rotate is installed in the detection box, and a driving structure used for driving the laser detection lamp to rotate is installed in the detection box. The driving structure comprises a driving rack slidably mounted in the detection box, a driving gear rotatably mounted in the detection box, and a driving gear coaxially rotating with the driving gear, a half gear is rotatably mounted in the detection box, the driving rack is meshed with the driving gear, and the driving gear is meshed with the half gear. The upper side and the bottom side of the frame are detected at the same time, the overall structure of the frame is fully covered as much as possible, and it is ensured that each part can be accurately measured and evaluated.

Description

Technical Field

[0001] The invention relates to the technical field of laser detection angle adjustment, in particular to a laser detection device for a frame of a stacker truck. Background Art

[0002] The forklift frame laser inspection device uses a high-precision laser beam to quickly scan various parts of the frame, collect and analyze reflection data in real time, and realize non-contact and highly efficient quality inspection, ensuring that the frame size and shape accurately meet the design specifications, greatly improving the automation level of the production line and product quality control capabilities.

[0003] At present, when performing laser inspection on a large number of vehicle frames, the vehicle frames need to be laid down on the transmission equipment. The vehicle frames can only be detected when they pass the bottom side of the laser detection light. However, the inspection is only performed on the upper part of the vehicle frame, and the bottom side of the frame is rarely detected, which affects the inspection efficiency. Therefore, it does not meet the existing needs. In this regard, we propose a laser inspection device for forklift frames. Summary of the invention

[0004] The present invention provides a laser detection device for a forklift frame, which has the beneficial effect of being able to adjust the angle of a laser detection light and prolong the detection time. It solves the problem mentioned in the above background technology that when performing laser detection on a large number of frames, the frames need to be laid down on a transmission device, and the frames can only be detected when they pass the bottom side of the laser detection light. However, the detection is only performed on the upper part of the frame, and the bottom side of the frame is rarely detected, which affects the detection efficiency.

[0005] The present invention provides the following technical solution: a laser detection device for a frame of a stacker, comprising a transmission device and a detection box installed outside a housing of the transmission device, and a laser detection lamp for detecting the frame, wherein the laser detection lamp is rotatably installed inside the detection box, a control rod for controlling the rotation of the laser detection lamp is installed inside the detection box, and a driving structure for driving the laser detection lamp to rotate is installed inside the detection box; The driving structure includes a driving rack slidably installed inside the detection box, a driving gear rotatably installed inside the detection box, and a driving gear coaxially rotating with the driving gear. A half gear is rotatably installed inside the detection box, the driving rack is meshed with the driving gear, and the driving gear is meshed with the half gear.

[0006] As an optional solution of the forklift frame laser detection device described in the present invention, sealing strips for shading are respectively installed at the entrance and exit of the detection box, and two laser detection lamps are provided, and the two laser detection lamps are respectively installed on the bottom and upper sides of the inside of the detection box.

[0007] As an optional solution of the forklift frame laser detection device described in the present invention, the first sliding groove and the second sliding groove are installed inside the detection box, one side of the control rod is slidably matched with the first sliding groove, and a sliding block is installed on the side of the driving rack, and the sliding block is slidably matched with the second sliding groove.

[0008] As an optional solution of the forklift frame laser detection device described in the present invention, wherein: a driving groove is opened inside the detection box, a rotating groove is opened inside the detection box, a first rotating shaft is rotatably installed between the driving groove and the rotating groove, a second rotating shaft is rotatably installed inside the rotating groove, the driving gear is installed inside the driving groove, the driving gear is installed inside the rotating groove, the driving gear and the driving gear are respectively coaxially installed on the first rotating shaft, and the half gear is coaxially installed on the second rotating shaft.

[0009] As an optional solution of the laser detection device for a stacker frame described in the present invention, wherein: a first through-slot is provided inside the driving slot, a second through-slot is provided inside the rotating slot, a third through-slot is symmetrically provided inside the rotating slot, the two ends of the first rotating shaft are respectively movably matched with the first through-slot and the second through-slot, and the two ends of the second rotating shaft are respectively movably matched with the third through-slot; A first spring is installed between the first through-slot and the first rotating shaft; A second spring is installed between the third through-slot hole and the second rotating shaft.

[0010] As an optional solution of the forklift frame laser detection device described in the present invention, a track groove is installed in the inner wall of the detection box, a connecting groove is horizontally opened between the track groove and the first sliding groove, a traction block is slidably installed inside the track groove, and a traction rod is installed between the control rod and the traction block.

[0011] As an optional solution of the forklift frame laser detection device described in the present invention, the first baffle is installed on the side of the driving rack for driving the driving gear to move, and the circular plate for driving the half gear to move is installed on the side of the driving gear, the first sliding groove is inclined, and a limiting groove is provided on the control rod, a connecting rod is installed inside the limiting groove, a return spring is installed between the connecting rod and the limiting groove, the end of the connecting rod is connected to the driving rack, and a pulley is provided on the bottom side of the control rod.

[0012] As an optional solution of the laser detection device for a stacker frame of the present invention, wherein: the track groove includes an annular groove and an arc groove; When the control rod moves, the traction block slides inside the annular groove. When the traction block slides into the arc groove, the half gear is displaced, so the laser detection lamp is displaced.

[0013] As an optional solution of the laser detection device for a forklift frame described in the present invention, limiting plates are symmetrically installed inside the track groove, and a rotating shaft is installed in the inner wall of the track groove.

[0014] As an optional solution of the laser detection device for a forklift frame described in the present invention, a one-way torsion spring is installed between the limiting plate and the rotating shaft.

[0015] The present invention has the following beneficial effects: 1. The laser detection device for the forklift frame is set at the entrance and exit of the detection box through sealing strips, which can effectively block natural light and indoor lighting from entering the detection box, thereby reducing interference with the detection equipment and ensuring the accuracy of the detection results; in addition, two laser detection lights are installed on both sides of the detection box to achieve simultaneous detection of the upper and bottom sides of the frame, covering the overall structure of the frame as comprehensively as possible to ensure that each part can be accurately measured and evaluated.

[0016] 2. The laser detection device for the frame of the forklift truck can realize the change of the angle of the laser detection light only through the movement of the transmission equipment and the frame itself, through the cooperation of the control rod, the driving rack, the driving gear and the half gear. When the frame enters the detection box, the front side of the frame contacts the control rod, so that the control rod moves with the frame. Due to the cooperation of the connecting rod, the driving rack is meshed with the driving gear to rotate. At the same time, the meshing between the driving gear and the half gear is used to drive the laser detection light to rotate during the movement of the control rod. When the frame enters the detection box, the light source of the laser detection light is dispersed on the frame, and the light source moves with the frame, so that the laser beam always fits the surface of the frame during the process of the entire frame entering the detection box, which can capture every detail and change, and improve the accuracy and completeness of the detection. This solution automatically realizes the change of the angle of the laser detection light through the movement of the frame, without the need for an additional power source, reducing the manufacturing cost and complexity of the equipment.

[0017] 3. The forklift frame laser detection device, through the cooperation of the arc groove, the traction block and the traction rod, during the movement of the control rod, the traction block is pulled by the arc groove, so that the control rod and the driving rack are displaced, and the cooperation of the first baffle plate and the circular plate is used to drive the displacement of the half gear, so that the laser detection light is displaced. In the process of displacement, the two originally vertical laser detection lights are found to be offset, so that the two groups of light sources no longer overlap. By offsetting the two groups of light sources, the overlapping area between the light sources can be effectively eliminated, so that each part of the frame can be independently detected, avoiding excessive detection or detection blind spots caused by overlapping light sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the half-cut structure of the detection box of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the first sliding groove and the second sliding groove of the present invention.

[0021] Figure 4 It is a schematic diagram of the driving structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the matching structure of the track groove and the first sliding groove of the present invention.

[0023] Figure 6 This is a schematic diagram of the placement structure of the lower laser detection light of the present invention.

[0024] Figure 7 It is a schematic diagram of the structure of the laser detection lamp of the present invention from the initial state to the final state.

[0025] Figure 8 It is a schematic diagram of the annular groove and the annular groove structure of the present invention.

[0026] In the figure: 110, detection box; 111, transmission equipment; 112, laser detection lamp; 113, control rod; 114, sealing strip; 120, driving structure; 121, driving rack; 122, driving gear; 123, driving gear; 124, half gear; 130, first sliding groove; 131, second sliding groove; 132, slider; 140, driving groove; 141, rotating groove; 142, first rotating shaft; 143, second rotating shaft; 150, first through-slot; 151, second through-slot; 152, third through-slot; 160, track slot; 161, annular slot; 162, arc slot; 170, connecting slot; 171, traction block; 172, traction rod; 180, first baffle; 181, circular plate; 190, limiting slot; 191, connecting rod; 192, return spring; 193, pulley; 210, limiting plate; 211, rotating shaft; 212, one-way torsion spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1: This embodiment is intended to solve the problem that when laser detection is performed on a large number of vehicle frames, the vehicle frames need to be laid down on the transmission device 111. The vehicle frames can only be detected when they pass the bottom side of the laser detection lamp 112. However, the detection is only performed on the upper part of the vehicle frames, and the bottom side of the frame is rarely detected, which affects the detection efficiency. Please refer to Figure 1-Figure 8 A laser detection device for a frame of a stacker truck includes a transmission device 111 and a detection box 110 installed outside a shell of the transmission device 111, and a laser detection lamp 112 for detecting the frame. The laser detection lamp 112 is rotatably installed inside the detection box 110, a control rod 113 for controlling the rotation of the laser detection lamp 112 is installed inside the detection box 110, and a driving structure 120 for driving the laser detection lamp 112 to rotate is installed inside the detection box 110; The driving structure 120 includes a driving rack 121 slidably mounted inside the detection box 110, a driving gear 122 rotatably mounted inside the detection box 110, and a driving gear 123 coaxially rotating with the driving gear 122. A half gear 124 is rotatably mounted inside the detection box 110, the driving rack 121 is meshed with the driving gear 122, and the driving gear 123 is meshed with the half gear 124.

[0029] During specific implementation, sealing strips 114 for shading are respectively installed at the entrance and exit of the detection box 110. The setting of the sealing strips 114 reduces the external light from entering the detection box 110, effectively shields the interference light, and improves the accuracy of detection. Two laser detection lights 112 are provided, and the two laser detection lights 112 are respectively installed on the bottom side and the upper side of the detection box 110, so that both the upper side and the bottom side of the frame can be detected, thereby improving the detection effect.

[0030] It should be noted that the transmission device 111 can be configured as a transmission roller. Since there is a certain gap between each transmission roller, the light of the laser detection lamp 112 can illuminate the bottom side of the frame.

[0031] In this embodiment: by setting the sealing strips 114 at the entrance and exit of the detection box 110, it is possible to effectively block natural light and indoor lighting from entering the detection box 110, thereby reducing interference with the detection equipment and ensuring the accuracy of the detection results; in addition, two laser detection lights 112 are respectively installed on both sides of the detection box 110 to achieve simultaneous detection of the upper and lower sides of the frame, covering the overall structure of the frame as comprehensively as possible to ensure that each part can be accurately measured and evaluated.

[0032] Embodiment 2: This embodiment is intended to promote the solution of the problem that the laser detection lamp 112 is usually a spotlight, so when detecting the frame, the frame needs to reach a specific position before detection can be performed. However, since the transmission device 111 is mobile, the detection time is also relatively short, which affects the detection. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-Figure 8 A first sliding groove 130 and a second sliding groove 131 are installed inside the detection box 110, one side of the control rod 113 is slidably matched with the first sliding groove 130, and a slider 132 is installed on the side of the driving rack 121, and the slider 132 is slidably matched with the second sliding groove 131.

[0033] A driving groove 140 is provided inside the detection box 110, a rotating groove 141 is provided inside the detection box 110, a first rotating shaft 142 is rotatably installed between the driving groove 140 and the rotating groove 141, a second rotating shaft 143 is rotatably installed inside the rotating groove 141, a driving gear 122 is installed inside the driving groove 140, and a driving gear 123 is installed inside the rotating groove 141, the driving gear 122 and the driving gear 123 are coaxially installed on the first rotating shaft 142 respectively, and the half gear 124 is coaxially installed on the second rotating shaft 143.

[0034] In specific implementation, when the vehicle frame reaches the inside of the detection box 110 through the transmission device 111, the front side of the vehicle frame contacts the control rod 113, so that the control rod 113 moves with the vehicle frame; during the movement of the control rod 113, the driving rack 121 is moved by the cooperation of the connecting rod 191, and is meshed with the driving gear 122 during the movement to rotate. Since the driving gear 123 is coaxially arranged with the driving gear 122, the driving gear 123 is meshed with the half gear 124 during the rotation. Therefore, the half gear 124 drives the laser detection lamp 112 to rotate during the rotation, so that when the vehicle frame enters the detection box 110, the light source of the laser detection lamp 112 is dispersed on the vehicle frame, and the light source moves with the vehicle frame; by making the light source of the laser detection lamp 112 move with the vehicle frame, real-time dynamic detection of the vehicle frame is realized. In the process of the entire vehicle frame entering the detection box 110, the laser beam always fits the surface of the vehicle frame, and can capture every detail and change, ensuring the accuracy and integrity of the detection result.

[0035] A track groove 160 is installed in the inner wall of the detection box 110, and a connecting groove 170 is horizontally opened between the track groove 160 and the first sliding groove 130. A traction block 171 is slidably installed inside the track groove 160, and a traction rod 172 is installed between the control rod 113 and the traction block 171. The first sliding groove 130 and the track groove 160 are inclined. A limiting groove 190 is opened on the control rod 113, and a connecting rod 191 is installed inside the limiting groove 190. A reset spring 192 is installed between the connecting rod 191 and the limiting groove 190, and the end of the connecting rod 191 is connected to the driving rack 121, and a pulley 193 is opened on the bottom side of the control rod 113.

[0036] In specific implementation, through the cooperation of the track groove 160, when the frame follows the transmission device 111 to move out of the detection box 110, due to the resistance of the frame to the control rod 113, and the control rod 113 is pulled by the traction rod 172 and the traction block 171, the traction block 171 is restricted to reach the other side of the track groove 160 during the movement of the control rod 113, and pulls the control rod 113 to make the control rod 113 move away from the frame. Since the first sliding groove 130 and the track groove 160 are inclined, and the pulley 193 is installed on the bottom side of the control rod 113, when the control rod 113 is no longer resisted, the control rod 113 is reset by the cooperation of the inclined surface and the pulley 193, which is convenient for a new round of detection.

[0037] During specific implementation, a first through-slot 150 is opened inside the driving slot 140, a second through-slot 151 is opened inside the rotating slot 141, and a third through-slot 152 is symmetrically opened inside the rotating slot 141. Both ends of the first rotating shaft 142 are movably matched with the first through-slot 150 and the second through-slot 151 respectively, and both ends of the second rotating shaft 143 are movably matched with the third through-slot 152 respectively. Through the cooperation of the first through-slot 150, the second through-slot 151 and the third through-slot 152, the first rotating shaft 142 and the second rotating shaft 143 have enough space to move.

[0038] In specific implementation, a first spring is installed between the first through-slot 150 and the first rotating shaft 142, and a second spring is installed between the third through-slot 152 and the second rotating shaft 143. Through the setting of the first spring and the second spring, the first rotating shaft 142 and the second rotating shaft 143 can be reset after moving.

[0039] During specific implementation, a first baffle 180 for driving the driving gear 122 to move is installed on the side of the driving rack 121, and a circular plate 181 for driving the half gear 124 to move is installed on the side of the driving gear 123. Through the cooperation of the first baffle 180 and the circular plate 181, the half gear 124 can be driven to move during the displacement of the control rod 113, and the laser detection light 112 is displaced at the same time. Not only that, it can also help the driving rack 121 to continue to drive the gear 122 to engage, so that the laser detection light 112 returns to the starting angle.

[0040] In this embodiment: through the cooperation of the control rod 113, the driving rack 121, the driving gear 122 and the half gear 124, the angle of the laser detection lamp 112 can be changed only by the movement of the transmission device 111 and the frame itself; when the frame enters the detection box 110, the front side of the frame contacts the control rod 113, so that the control rod 113 moves with the frame, and the driving rack 121 and the driving gear 122 are meshed due to the cooperation of the connecting rod 191, so that they rotate, and at the same time, the meshing between the driving gear 123 and the half gear 124 is used to drive the laser detection lamp 112 to rotate during the movement of the control rod 113, so that when the frame enters the detection box 110, the light source of the laser detection lamp 112 is dispersed on the frame, and the light source moves with the frame, so that during the entire frame entering the detection box 110, the laser beam always fits the surface of the frame, which can capture every detail and change, and improve the accuracy and completeness of the detection; Moreover, through the cooperation of the track groove 160, the traction rod 172 and the traction block 171, after the detection is completed, the traction block 171 is restricted to reach the other side of the track groove 160, thereby pulling the control rod 113 so that the control rod 113 is away from the frame. Since the control rod 113 is no longer restricted, and at the same time, the pulley 193 and the inclined surface are used, it can be automatically reset to facilitate a new round of detection. This solution automatically realizes the change of the angle of the laser detection light 112 through the movement of the frame, without the need for an additional power source, thereby reducing the manufacturing cost and complexity of the equipment.

[0041] Embodiment 3: This embodiment is intended to solve the problem that as the control rod 113 moves, it is inevitable that the two laser detection lights 112 light sources may be vertical, resulting in light source overlap. Due to the overlap of light sources, the intensity of the laser beam in a certain area may be too high, which may cause unnecessary damage to the frame. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figure 1-Figure 8 , the track groove 160 includes an annular groove 161 and an arc groove 162; In specific implementation, when the control rod 113 moves, the traction block 171 slides inside the annular groove 161. When the traction block 171 slides into the arc groove 162, the control rod 113 is pulled by the traction block 171 and the traction rod 172, so that the control rod 113 and the driving rack 121 are displaced together. At the same time, the first baffle 180 and the circular plate 181 cooperate to drive the half gear 124 to displace, so that the laser detection light 112 is displaced. In the process of displacement, the two originally vertical laser detection lights 112 are offset, so that the two groups of light sources no longer overlap.

[0042] It should be noted that, when the traction block 171 slides inside the arc-shaped groove 162 , the control rod 113 maintains contact with the vehicle frame.

[0043] During specific implementation, a first baffle 180 for driving the driving gear 122 to move is installed on the side of the driving rack 121, and a circular plate 181 for driving the half gear 124 to move is installed on the side of the driving gear 123. Through the cooperation of the first baffle 180 and the circular plate 181, the half gear 124 can be driven to move during the displacement of the control rod 113, and the laser detection light 112 is displaced at the same time. Not only that, it can also help the driving rack 121 to continue to drive the gear 122 to engage, so that the laser detection light 112 returns to the starting angle.

[0044] During specific implementation, a limiting plate 210 is symmetrically installed inside the track groove 160, a rotating shaft 211 is installed in the inner wall of the track groove 160, and a one-way torsion spring 212 is installed between the limiting plate 210 and the rotating shaft 211. Through the cooperation of the limiting plate 210 and the one-way torsion spring 212, the traction block 171 can move along the track of the track groove 160, reducing the possibility of back movement.

[0045] In this embodiment: through the cooperation of the arc groove 162, the traction block 171 and the traction rod 172, during the movement of the control rod 113, the traction block 171 is pulled by the arc groove 162, so that the control rod 113 and the driving rack 121 are displaced, and the cooperation of the first baffle plate 180 and the circular plate 181 is used to drive the half gear 124 to displace, so that the laser detection light 112 is displaced. During the displacement process, the two originally vertical laser detection lights 112 are offset, so that the two groups of light sources no longer overlap. By offsetting the two groups of light sources, the overlapping area between the light sources can be effectively eliminated, so that each part of the frame can be independently detected, avoiding excessive detection or detection blind spots caused by overlapping light sources.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A laser detection device for a frame of a stacker, comprising a transmission device (111), a detection box (110) installed outside a shell of the transmission device (111), and a laser detection lamp (112) for detecting the frame, characterized in that: The laser detection light (112) is rotatably mounted inside the detection box (110), a control rod (113) for controlling the rotation of the laser detection light (112) is mounted inside the detection box (110), and a driving structure (120) for driving the laser detection light (112) to rotate is mounted inside the detection box (110); The driving structure (120) comprises a driving rack (121) slidably mounted inside the detection box (110), a driving gear (122) rotatably mounted inside the detection box (110), and a driving gear (123) coaxially rotating with the driving gear (122); a half gear (124) is rotatably mounted inside the detection box (110); the driving rack (121) meshes with the driving gear (122), and the driving gear (123) meshes with the half gear (124).

2. A stacker frame laser detection device according to claim 1, characterized in that: Sealing strips (114) for shielding light are respectively installed at the entrance and the exit of the detection box (110), and two laser detection lamps (112) are provided, and the two laser detection lamps (112) are respectively installed at the bottom side and the top side of the interior of the detection box (110).

3. The laser detection device for a forklift frame according to claim 1, characterized in that: A first sliding groove (130) and a second sliding groove (131) are installed inside the detection box (110), one side of the control rod (113) is slidably matched with the first sliding groove (130), and a sliding block (132) is installed on the side of the driving rack (121), and the sliding block (132) is slidably matched with the second sliding groove (131).

4. The laser detection device for a forklift frame according to claim 1, characterized in that: A driving groove (140) is provided inside the detection box (110), and a rotating groove (141) is provided inside the detection box (110); a first rotating shaft (142) is rotatably mounted between the driving groove (140) and the rotating groove (141); a second rotating shaft (143) is rotatably mounted inside the rotating groove (141); the driving gear (122) is mounted inside the driving groove (140), and the driving gear (123) is mounted inside the rotating groove (141); the driving gear (122) and the driving gear (123) are respectively coaxially mounted on the first rotating shaft (142), and the half gear (124) is coaxially mounted on the second rotating shaft (143).

5. The laser detection device for a forklift frame according to claim 4, characterized in that: A first through-slot (150) is provided inside the driving slot (140), a second through-slot (151) is provided inside the rotating slot (141), and a third through-slot (152) is symmetrically provided inside the rotating slot (141); two ends of the first rotating shaft (142) are movably engaged with the first through-slot (150) and the second through-slot (151), respectively; and two ends of the second rotating shaft (143) are movably engaged with the third through-slot (152); A first spring is installed between the first insertion slot (150) and the first rotating shaft (142); A second spring is installed between the third through-slot hole (152) and the second rotating shaft (143).

6. The forklift frame laser detection device according to claim 1, characterized in that: A track groove (160) is installed in the inner wall of the detection box (110), a connecting groove (170) is horizontally opened between the track groove (160) and the first sliding groove (130), a traction block (171) is slidably installed inside the track groove (160), and a traction rod (172) is installed between the control rod (113) and the traction block (171).

7. The forklift frame laser detection device according to claim 1, characterized in that: A first baffle (180) for driving the driving gear (122) to move is installed on the side of the driving rack (121), a circular plate (181) for driving the half gear (124) to move is installed on the side of the driving gear (123), the first sliding groove (130) is arranged in an inclined manner, a limiting groove (190) is provided on the control rod (113), a connecting rod (191) is installed inside the limiting groove (190), a return spring (192) is installed between the connecting rod (191) and the limiting groove (190), the end of the connecting rod (191) is connected to the driving rack (121), and a pulley (193) is provided on the bottom side of the control rod (113).

8. The laser detection device for a forklift frame according to claim 6, characterized in that: The track groove (160) comprises an annular groove (161) and an arc groove (162); When the control rod (113) moves, the traction block (171) slides inside the annular groove (161), and when the traction block (171) slides into the arc groove (162), the half gear (124) is displaced, thereby displacing the laser detection light (112).

9. The laser detection device for a forklift frame according to claim 8, characterized in that: A limiting plate (210) is symmetrically installed inside the track groove (160), and a rotating shaft (211) is installed in the inner wall of the track groove (160).

10. The laser detection device for a forklift frame according to claim 9, characterized in that: A one-way torsion spring (212) is installed between the limiting plate (210) and the rotating shaft (211).

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