Handheld laser cleaning machine focus fixing frame device

Abstract

The utility model provides a focus fixing frame device of a handheld laser cleaning machine, which comprises a focus fixing frame and a mounting platform, and the top end of the focus fixing frame is connected with the mounting platform. Compared with the prior art, the utility model has the following beneficial effects: the fixed-focus frame is formed by hinging the two sections, the fixed-focus frame is in an unfolded state during cleaning operation, and the sum of the lengths of the upper fixed-focus frame and the lower fixed-focus frame is equal to the required fixed-focus length when the fixed-focus frame is unfolded, so that the fixed-focus cleaning can be realized; the two parts are not easy to fold under a certain bending force, can be freely unfolded and folded according to needs, and are suitable for cleaning of complex surfaces and narrow working occasions, meanwhile, the ball head device on the fixed-focus frame can freely roll by 360 degrees on a cleaning surface, line-surface sliding friction of a common fixed-focus frame is upgraded to rolling friction, resistance during cleaning is reduced, and the fixed-focus frame is convenient to clean. The bottom ball head is in point contact with the working surface, and the handle can be randomly inclined by different angles when the focal length is not appropriate, so that fine adjustment of the fixed focus length is realized, and the accurate fixed focus function is achieved.

Description

Technical Field

[0001] The utility model relates to a focus frame device for a handheld laser cleaning machine, belonging to the field of focus frames for cleaning machines. Background Art

[0002] Laser cleaning is an important form of laser application. Laser cleaning requires a laser cleaning head, such as Figure 1 The figure shows a schematic diagram of the overall structure of the cleaning head of a portable cleaning machine, which is mainly composed of a cleaning head body 1, a field lens 2 and a fixed focus frame 3. The fixed focus frame 3 has many forms, and this is only one of them. The fixed focus frame 3 is fixed below the cleaning head body 1. During the cleaning operation, the parallel laser will be refracted and focused through the field lens (convex lens). When the focal point of the laser just acts on the cleaning plane, the light is the strongest at this time, and the cleaning effect is also the best, which can bring out the maximum effect of the laser. The length of the fixed focus frame can ensure that the focal point of the laser just acts on the cleaning plane, realizing fixed focus cleaning, which plays an important role in cleaning.

[0003] Regarding the focus problem of the cleaning head, there are generally the following situations:

[0004] 1. No fixed focus frame is configured: Because many cleaning substrates are non-planar, the design of a fixed focus frame is difficult. Many manufacturers have cancelled the design of the fixed focus frame and rely on human feeling to find the focal length. The focal length cannot be accurately found, that is, the focus cannot be fixed, which seriously affects the cleaning effect and efficiency.

[0005] 2. There is a fixed focus frame, but the fixed focus frame cannot be easily moved on the cleaning surface: Figure 2 , Figure 3 As shown, the fixed focus frame of the cleaning machine is in surface contact and line contact with the cleaning surface respectively. Movement will generate great friction and it cannot move easily on the cleaning surface. It is even more difficult to move on complex surfaces, which seriously affects the cleaning efficiency.

[0006] 3. There is a fixed focus stand, but it is difficult to operate in a narrow working environment: e.g. Figure 2 As shown, the fixed focus frame is large in size and needs to be removed in narrow working environments, which cannot meet the frequent switching requirements in actual applications, wasting time and energy. In addition, the removed fixed focus frame is easily lost if it is not stored properly. Figure 3 In the fixed focus frame shown in the figure, the lower fixed focus frame component can slide in the groove of the upper fixed focus frame, and after being in place, it is connected and fixed with screws and screw holes 21. Although it does not need to be disassembled, it is necessary to repeatedly loosen and tighten the screws, which cannot meet the needs of frequent switching, and is prone to slippage and damage, making operation troublesome. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model aims to provide a focus frame device for a handheld laser cleaning machine.

[0008] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0009] A focus frame device for a handheld laser cleaning machine comprises a focus frame and a mounting platform, wherein the top end of the focus frame is connected to the mounting platform, and the mounting platform is connected to a cleaning head body, and the focus frame comprises an upper focus frame and a lower focus frame, wherein the upper focus frame and the lower focus frame are movably connected via a movable connecting piece, and a plurality of mounting holes are provided on the lower focus frame, and a ball head device is installed in each of the mounting holes.

[0010] Furthermore, the installation platform is an annular structure, and is provided with a plurality of docking holes that match the connection body.

[0011] Furthermore, both the upper fixed-focus frame and the lower fixed-focus frame are L-shaped structures, the upper fixed-focus frame includes a vertical section one and a straight section one, the vertical section one and the straight section one form an L-shaped structure, the lower fixed-focus frame includes a vertical section two and a straight section two, the vertical section two and the straight section two form an L-shaped structure, and the straight section two is provided with the mounting hole.

[0012] Furthermore, the connection between the vertical section 1 and the straight section 1 is a chamfered structure, and the connection between the vertical section 2 and the straight section 2 is a chamfered structure.

[0013] Furthermore, the straight section 1 on the upper fixed-focus frame is connected to the mounting platform, and the straight section 2 on the lower fixed-focus frame is connected to the ball head device.

[0014] Furthermore, the movable connecting member is connected between the vertical section 1 and the vertical section 2, and the movable connecting member is one of a connecting hinge, a hinge pin, a hinge card, a hinge plate, and a pin shaft.

[0015] Furthermore, the ball head device includes a ball head bracket, which is connected and fixed to the mounting hole through a connecting piece. An active cavity is opened on the ball head bracket, and a ball head is arranged inside the active cavity. The ball head and the active cavity are rollingly connected through an inner cavity auxiliary rotation mechanism.

[0016] Furthermore, the connecting member includes a screw and a nut, the screw is arranged on the ball head bracket, and the screw passes through the mounting hole and is connected with the nut to fix the ball head bracket and the second straight section together.

[0017] Furthermore, the inner cavity auxiliary rotation mechanism includes a ball, and the ball is rollingly connected between the ball head and the inner wall of the active cavity.

[0018] Beneficial effects of the utility model:

[0019] The upper focus frame and the lower focus frame of the utility model are movably connected via a movable connecting piece. During cleaning operation, the focus frame is in an unfolded state. When unfolded, the sum of the lengths of the upper focus frame and the lower focus frame is equal to the required length for focusing, so that cleaning and focusing can be achieved. The two parts are not easy to fold within a certain bending force, and can be freely unfolded and folded as needed, which is suitable for cleaning of complex surfaces and narrow working environments. When folded, it saves space and can also be used as a temporary bracket.

[0020] The utility model adopts the design of the ball head device, so that during the cleaning operation, the ball head contacts the cleaning surface and can roll freely 360 degrees on the cleaning surface, upgrading the linear surface sliding friction of the general fixed focus frame to rolling friction, greatly reducing the resistance during cleaning, making it easy to move, reducing the labor intensity of personnel, and having strong flexibility. In addition, the bottom ball head is in point contact with the working surface, and when the focal length is not suitable, the handle can be tilted at different angles to achieve fine adjustment of the fixed focus length, thereby achieving a precise focusing function.

[0021] The utility model can reduce the friction force of the ball head when it rolls through the design of the inner cavity auxiliary rotation mechanism, so that the ball head and the movable cavity can achieve 360-degree free rolling without any jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of a cleaning head of a portable cleaning machine in the prior art;

[0024] Figure 2 Schematic diagram of the fixed focus frame structure in the prior art Figure 1 ;

[0025] Figure 3 Schematic diagram of the fixed focus frame structure in the prior art Figure 2 ;

[0026] Figure 4 This is a schematic diagram of the structure of a fixed focus frame device for a handheld laser cleaning machine of the utility model. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the structure of a fixed focus frame device for a handheld laser cleaning machine of the utility model. Figure 2 ;

[0028] Figure 6This is a schematic diagram of the structure of a ball head device of a focus frame device of a handheld laser cleaning machine of the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of a fixed focus frame device for a handheld laser cleaning machine in the utility model in use state Figure 1 ;

[0030] Figure 8 This is a schematic diagram of the structure of a fixed focus frame device for a handheld laser cleaning machine in the utility model in use state Figure 2 .

[0031] In the figure, 1. cleaning head body; 2. field lens; 3. focus frame; 4. upper focus frame; 5. lower focus frame; 6. connecting hinge; 7. ball head device; 8. ball head bracket; 9. ball head; 10. inner cavity auxiliary rotation mechanism; 11. mounting platform; 12. docking hole; 13. vertical section one; 14. straight section one; 15. vertical section two; 16. straight section two; 17. movable cavity; 18. screw; 19. nut; 20. ball; 21. screw hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 4-Figure 8 The utility model provides a technical solution for a focus frame device of a handheld laser cleaning machine, comprising a focus frame 3 and a mounting platform 11, the top of the focus frame 3 is connected to the mounting platform 11, the mounting platform 11 is connected to a cleaning head body 1, the focus frame 3 comprises an upper focus frame 4 and a lower focus frame 5, the upper focus frame 4 and the lower focus frame 5 are movably connected via a movable connecting piece, a plurality of mounting holes are provided on the lower focus frame 5, a ball head device 7 is installed in the mounting hole; the handheld laser cleaning head comprises a cleaning head body 1 and a field lens 2, when in use, the field lens 2 is installed in the mounting hole below the cleaning head body 1, and the focus frame 3 is connected to the lower end of the cleaning head body 1 via the mounting platform 11.

[0034] See also Figure 4-Figure 5 The mounting platform 11 is an annular structure, and is provided with a plurality of docking holes 12 that match the connection body; the docking holes 12 facilitate the docking of the focus holder 3 and the connection body.

[0035] See also Figure 4-Figure 5The upper fixed focus frame 4 and the lower fixed focus frame 5 are both L-shaped structures. The upper fixed focus frame 4 includes a vertical section 13 and a straight section 14. The vertical section 13 and the straight section 14 form an L-shaped structure. The lower fixed focus frame 5 includes a vertical section 2 15 and a straight section 2 16. The vertical section 2 15 and the straight section 2 16 form an L-shaped structure. The straight section 2 16 is provided with the mounting hole. The connection between the vertical section 13 and the straight section 14 is a chamfered structure. The connection between the vertical section 2 15 and the straight section 2 16 is a chamfered structure. The straight section 14 on the upper focus frame 4 is connected to the mounting platform 11, and the straight section 2 16 on the lower focus frame 5 is connected to the ball head device 7; the upper focus frame 4 and the lower focus frame 5 of the utility model are movably connected by a movable connecting member (the connecting hinge 6 is one of them, but not limited to the connecting hinge 6). During the cleaning operation, the focus frame 3 is in the unfolded state. When unfolded, the sum of the lengths of the upper focus frame 4 and the lower focus frame 5 is equal to the required length for focusing, so that cleaning and focusing can be achieved, and the two parts are not easy to fold within a certain bending force (such as, Figure 7 and Figure 8 It can be unfolded and folded freely as needed, suitable for cleaning complex surfaces and narrow working places. It saves space when folded and can also be used as a temporary bracket.

[0036] See also Figure 4-Figure 5 The movable connecting member is connected between the vertical section 1 13 and the vertical section 2 15, and the movable connecting member is one of a connecting hinge 6, a hinge pin, a hinge card, a hinge plate, and a pin shaft.

[0037] See also Figure 6 The ball head device 7 includes a ball head bracket 8, which is connected and fixed to the mounting hole through a connecting piece. An active cavity 17 is provided on the ball head bracket 8, and a ball head 9 is provided inside the active cavity 17. The ball head 9 is rollingly connected to the active cavity 17 through an inner cavity auxiliary rotation mechanism 10 ( Figure 6 The inner cavity auxiliary rotation mechanism 10 is only a form of expression, and other components that meet the rolling requirements belong to the protection scope of the inner cavity auxiliary rotation mechanism 10). Through the design of the ball head device 7, during the cleaning operation, the ball head 9 contacts the cleaning surface and can roll freely 360° on the cleaning surface, upgrading the linear sliding friction of the general fixed focus frame to rolling friction, greatly reducing the resistance during cleaning, making it easy to move, reducing the labor intensity of personnel, and having strong flexibility. In addition, the bottom ball head 9 is in point contact with the working surface. When the focal length is not suitable, the handle can be tilted at different angles to achieve fine-tuning of the fixed focus length and achieve precise focusing function.

[0038] See also Figure 4-Figure 5The connecting piece includes a screw 18 and a nut 19, and the screw 18 is arranged on the ball head bracket 8. The screw 18 passes through the mounting hole and is connected with the nut 19 to fix the ball head bracket 8 and the straight section 16 together; through the cooperation of the screw 18 and the nut 19, the ball head bracket 8 and the lower fixed focus frame 5 are connected together, and the screw 18 and the nut 19 are only one of the connection methods, and other connecting pieces that meet the connection function also belong to the protection scope of the connecting pieces in this application.

[0039] See also Figure 6 The inner cavity auxiliary rotation mechanism 10 includes a ball 20, and the ball 20 is rollingly connected between the ball head 9 and the inner wall of the active cavity 17; by setting the ball 20, the friction force of the ball head 9 when rolling can be reduced, so that the ball head 9 and the active cavity 17 can achieve 360° free rolling without jamming, and the ball 20 is only one of the many ball parts defined by the inner cavity auxiliary rotation mechanism 10 in this application, and other ball parts that can meet the rolling connection also belong to the protection scope of the inner cavity auxiliary rotation mechanism 10 in this application.

[0040] The upper focus frame 4 and the lower focus frame 5 of the utility model are movably connected by a movable connecting member (the connecting hinge 6 is one of them, but not limited to the connecting hinge 6). During the cleaning operation, the focus frame 3 is in an unfolded state. When unfolded, the sum of the lengths of the upper focus frame 4 and the lower focus frame 5 is equal to the required length for focusing, so that cleaning and focusing can be achieved, and the two parts are not easy to fold within a certain bending force, and can be freely unfolded and folded as needed (such as, Figure 7 and Figure 8 It is suitable for cleaning complex surfaces and narrow working places. It saves space when folded and can also be used as a temporary bracket.

[0041] The bottom of the utility model is provided with a ball head device 7 (such as Figure 6 shown), Figure 6 The device shown is only one form of the ball head device 7. The ball head device 7 is provided with a ball head bracket 8, a ball head 9 and an inner cavity auxiliary rotation mechanism 10. The inner cavity auxiliary rotation mechanism 10 is distributed in the active cavity 17 in the ball head bracket 8 and contacts with the ball head 9, which can greatly reduce the friction force of the ball head 9 when rolling, and ensure that the ball head 9 can achieve 360° free rolling without jamming in the active cavity 17; the ball head device 7 can be provided with one or more. During the cleaning operation, the ball head 9 contacts with the cleaning surface and can roll freely 360° on the cleaning surface, upgrading the linear surface sliding friction of the general fixed focus frame to rolling friction, greatly reducing the resistance during cleaning, making it easy to move, reducing the labor intensity of personnel, and having extremely strong flexibility. In addition, the bottom ball head 9 is in point contact with the working surface. When the focal length is not suitable, the handle can be tilted at different angles to achieve fine adjustment of the fixed focus length and achieve precise focusing function.

[0042] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A focus frame device for a handheld laser cleaning machine, characterized in that: The invention comprises a focus frame (3) and a mounting platform (11), wherein the top end of the focus frame (3) is connected to the mounting platform (11), and the mounting platform (11) is connected to a cleaning head body (1). The focus frame (3) comprises an upper focus frame (4) and a lower focus frame (5), wherein the upper focus frame (4) and the lower focus frame (5) are movably connected via a movable connecting member, and the lower focus frame (5) is provided with a plurality of mounting holes, wherein a ball head device (7) is installed in each of the mounting holes.

2. The focus-fixing frame device of a handheld laser cleaning machine according to claim 1, characterized in that: The installation platform (11) is an annular structure, and is provided with a plurality of docking holes (12) that match the connection body.

3. The focus-fixing frame device of a handheld laser cleaning machine according to claim 2, characterized in that: The upper fixed-focus frame (4) and the lower fixed-focus frame (5) are both L-shaped structures. The upper fixed-focus frame (4) comprises a vertical section 1 (13) and a straight section 1 (14), wherein the vertical section 1 (13) and the straight section 1 (14) form an L-shaped structure. The lower fixed-focus frame (5) comprises a vertical section 2 (15) and a straight section 2 (16), wherein the vertical section 2 (15) and the straight section 2 (16) form an L-shaped structure, wherein the mounting hole is provided on the straight section 2 (16).

4. The focus-fixing frame device of a handheld laser cleaning machine according to claim 3, characterized in that: The connection between the vertical section 1 (13) and the straight section 1 (14) is a chamfered structure, and the connection between the vertical section 2 (15) and the straight section 2 (16) is a chamfered structure.

5. The focus-fixing frame device of a handheld laser cleaning machine according to claim 4, characterized in that: The straight section 1 (14) on the upper fixed-focus frame (4) is connected to the mounting platform (11), and the straight section 2 (16) on the lower fixed-focus frame (5) is connected to the ball head device (7).

6. The focus-fixing frame device of a handheld laser cleaning machine according to claim 5, characterized in that: The movable connecting member is connected between the vertical section 1 (13) and the vertical section 2 (15), and the movable connecting member is one of a connecting hinge (6), a hinge pin, a hinge clamp, a hinge plate, and a pin shaft.

7. The focus-fixing frame device of a handheld laser cleaning machine according to claim 6, characterized in that: The ball head device (7) comprises a ball head bracket (8), wherein the ball head bracket (8) is connected and fixed to the mounting hole via a connecting piece, an active cavity (17) is provided on the ball head bracket (8), a ball head (9) is provided inside the active cavity (17), and the ball head (9) and the active cavity (17) are rollingly connected via an inner cavity auxiliary rotation mechanism (10).

8. The focus-fixing frame device of a handheld laser cleaning machine according to claim 7, characterized in that: The connecting member comprises a screw (18) and a nut (19); the screw (18) is arranged on the ball head bracket (8); the screw (18) passes through the mounting hole and is connected to the nut (19) to fix the ball head bracket (8) and the straight section 2 (16) together.

9. The focus-fixing frame device of a handheld laser cleaning machine according to claim 8, characterized in that: The inner cavity auxiliary rotation mechanism (10) comprises a ball (20), and the ball (20) is rollingly connected between the ball head (9) and the inner wall of the active cavity (17).

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