Laser protection screen skeleton and laser protection screen having the same and method of use

Abstract

The present application relates to laser protection screen skeleton and laser protection screen with the skeleton and using method, laser protection screen skeleton includes upper beam and lower beam, the lower beam is equipped with support frame below, the support frame is equipped with trundle, the lower beam and support frame are slidingly connected, the upper beam and the lower beam are equipped with movable connecting piece on both sides, and the laser protection screen includes shading piece between the upper beam, the lower beam and the movable connecting piece on both sides.The laser protection screen skeleton of the technical scheme can be moved flexibly through the trundle, and the included angle between the multiple groups of connected laser protection screen skeletons can be adjusted through the movable connecting piece on the connected side, the adjustment path of the support frames does not interfere with each other in the adjustment process, thereby realizing arbitrary angle adjustment, and the protection structure such as the protection screen and the protection cover finally formed has good airtightness.

Description

Technical Field

[0001] This invention relates to the field of laser processing technology, and more specifically to a laser protective screen frame, a laser protective screen having the frame, and a method of using the screen. Background Technology

[0002] Laser protective screens are protective barrier structures placed at laser operation sites to block scattered and diffused laser beams emitted during laser processing, thus preventing harm to personnel and equipment in the surrounding area. Existing laser protective screens consist of two parts: a light-shielding component and a frame. The light-shielding component uses laser protective fabric or laser protective plate to block the laser beam, while the frame has mounting positions that match the shape of the light-shielding component. The light-shielding component is fixed in the mounting positions. In addition to being used individually, the frames of each laser protective screen can be connected to each other to form a corresponding shape according to the actual laser operation needs, thus constituting protective screens, protective covers, and other protective structures.

[0003] For example, Chinese patent CN2110253512U, entitled "A Protective Screen for a Laser Workstation," describes an example of using laser protective panels to form a protective screen. The protective screen of this structure includes a frame, which includes two sets of support columns and crossbeams. The two sets of crossbeams are respectively installed at the bottom and top of the support columns, forming a rectangular placement surface with the two sets of support columns. A set of partition beams is installed in the middle of the frame. The upper placement surface of the partition beams is used to install an anti-arc light plate, and the lower placement surface of the partition beams is used to install a sealing plate. The screen of this structure can be spliced ​​together by multiple sets of independent frames. The bottoms of the two sets of support columns on the adjacent side of the screens are installed in the same set of mounting bases, and the upper parts are connected by connecting plates to achieve fixation.

[0004] Similar to other laser protective screens currently on the market, each frame, together with its corresponding arc-shielding plate, forms a laser protective screen. In this type of laser protective screen, the frame beams, partition beams, and connecting plates are all installed on the sides of rectangular support columns. This means that the angle between adjacent frames can only be 90° and 180°, allowing only two connection methods: vertical or horizontal. Furthermore, due to the mounting base and connecting plates, adjacent frames remain fixed after installation and cannot be adjusted at the angle. Therefore, they cannot be folded and are difficult to store. In laser work areas where the area shape is not rectangular, there is a problem that the frames in some areas cannot be connected, resulting in gaps between adjacent frames. This prevents the laser work area from being fully shielded, and scattered and diffused laser light during the laser operation can easily escape through these gaps.

[0005] In response, our company has proposed a mobile laser protective screen. Please refer to the Chinese patent with publication number CN2122101220U and patent name "A Mobile Laser Protective Screen". It includes a frame (equivalent to a skeleton), in which a laser protective plate is embedded. The frame is formed by uprights and side columns. At the intersection of the uprights and side columns at the bottom of the frame, there is a support frame perpendicular to the plane of the frame. The bottom of the support frame is equipped with casters.

[0006] The laser protective screen structure features casters on the frame, allowing for arbitrary orientation adjustment. This enables multiple laser protective screens to be moved to the desired location and quickly assembled into protective structures such as protective screens and covers, reducing installation difficulty. However, the frame's support brackets are perpendicular to the side columns, with both ends protruding towards the sides of the side columns. When adjacent laser protective screens that make up the protective screen rotate to adjust their angle, the support brackets of the two laser protective screen frames can easily obstruct the rotation path. Therefore, the problem of the angle between the laser protective screens not being able to be arbitrarily adjusted still exists. Summary of the Invention

[0007] In view of the above situation, in order to overcome the problems in the prior art where the angles of the laser protective screens that make up the protective screen are fixed after assembly and cannot be arbitrarily adjusted, making them difficult to fold, and when applied to laser operation sites with non-rectangular shapes, they cannot completely seal off the laser operation site, the purpose of this invention is to provide a movable laser protective screen frame with good airtightness, in which the included angle between adjacent light-shielding components can be arbitrarily adjusted during the assembly of multiple sets of light-shielding components without obstructing each other's adjustment paths, and a laser protective screen with such frame and a method of use.

[0008] To achieve the above objectives, the technical solution of the present invention is:

[0009] A laser protective screen frame includes an upper beam and a lower beam. A support frame is provided below the lower beam and is positioned to cross the lower beam. Casters are provided on the support frame. The lower beam and the support frame are slidably connected. Movable connectors are provided on the left and right sides of both the upper and lower beams. The upper and lower ends of the movable connectors are connected to the upper and lower beams, respectively. Any movable connector can be detachably connected to other movable connectors and can rotate relative to each other when connected.

[0010] Preferably, the vertical projection surface of the free end of the movable connector is arc-shaped, and several gear teeth are arranged on the outer wall of its free end, so that any movable connector can mesh with the gear teeth on other movable connectors through its gear teeth.

[0011] Preferably, the fixed end of the movable connector has at least one slot, which is arranged along the length of the movable connector. The movable connector is provided with reinforcing ribs, which include at least one central support tube and multiple connecting strips. The connecting strips are arranged around the side wall of the central support tube and connected to the inner wall of the movable connector.

[0012] Preferably, it also includes a connecting plate and a first bolt. The connecting plate has guide holes that are opposite to the inner pipe sections of the central support tubes after the two movable connecting parts are connected. The two ends of the inner pipe sections of the central support tubes have threaded grooves. The threaded section of the first bolt passes through the guide holes and is threadedly connected to the inner pipe section of the central support tube.

[0013] Preferably, the support frame includes a base and an adapter seat. The adapter seat and casters are respectively located at the upper and lower ends of the base. The adapter seat has a movable groove, and the lower beam is embedded in the movable groove. The lower beam has an upper sliding groove that is flush with the movable groove. A positioning member opposite to the upper sliding groove is movably connected to the adapter seat. One end of the positioning member is inserted into the upper sliding groove and abuts against the inner wall of the upper sliding groove, and can disengage from the abutment position with the upper sliding groove when it moves.

[0014] Preferably, the base has a sliding groove, and the adapter also has a positioning member opposite to the sliding groove. One end of the positioning member is inserted into the sliding groove and abuts against the inner wall of the sliding groove, and can disengage from the abutment position with the sliding groove when it moves.

[0015] Preferably, the vertical projection surfaces of the upper and lower slide grooves are both T-shaped. The positioning components include a second bolt, a washer, and a stop. The second bolt is threaded onto the adapter, and its threaded section extends through the adapter into the upper and lower slide grooves and is threaded onto the stop. The length of the stop is greater than the width of the small inner diameter section of the upper and lower slide grooves. The washer is connected to the second bolt and is pressed by the second bolt onto the side of the adapter that is away from the lower beam and the base.

[0016] Preferably, the adapter includes a first base, a second base, and two support plates. The first base and the second base are L-shaped and T-shaped, respectively. The first base abuts against one side of any horizontal section of the second base through its vertical section. A movable groove is formed between the vertical sections of the first base and the second base. The two support plates correspond one-to-one with the first base and the second base. Both support plates are triangular, and the two sides of the support plates are connected to the horizontal and vertical sections of the corresponding first and second bases, respectively.

[0017] A laser protective screen having the above-mentioned laser protective screen frame includes a light-shielding component, which is disposed between the upper beam, the lower beam, and the movable connecting components on both sides.

[0018] A method of using the above-mentioned laser protective screen frame, characterized in that it includes the following steps:

[0019] S1: Select the required number of light-shielding components and slide each component along the slot of the movable connector to form a laser protective screen, arranging the laser protective screens in a parallel row:

[0020] S2: The two adjacent laser protective screens are engaged by the gear teeth on the free ends of the movable connectors on opposite sides, so that the two adjacent laser protective screens can rotate relative to each other;

[0021] S3-1: According to the required rotation angle of the two adjacent laser protective screens, rotate the second bolt of the positioning part on the corresponding adapter seat that is opposite to the lower beam to release the adapter seat from the tight contact with the lower beam, slide the support frame along the upper slide groove, and adjust the relative position of the support frames on the two laser protective screens.

[0022] S3-2: Rotate the second bolt of the positioning part on the adapter that is opposite to the base to release the adapter from the tight contact with the base, slide the adapter along the lower groove, and adjust the distance between the opposite ends of the bases of the two laser protective screen support frames.

[0023] S4-1: After the support frame position is adjusted, reset the second bolt of the positioning part on the adapter seat that is opposite to the lower beam to fix the support frame to the lower beam.

[0024] S4-2: After the base position of the support frame is adjusted, reset the second bolt of the positioning part on the adapter that is opposite to the base to fix the adapter to the base.

[0025] Compared with the prior art, the advantages of the present invention are as follows:

[0026] When any number of laser protective screen frames of this invention are to be assembled into protective structures such as protective screens or protective covers, two laser protective screen frames are connected by movable connectors on opposite sides. This allows the two laser protective screen frames to be rotated around their mating points as a rotation axis to adjust the included angle. During angle adjustment, the support frames of the two laser protective screen frames are moved synchronously to change their rotation radii, ensuring that the support frames rotate in a staggered manner and avoiding interference between their rotation paths. This allows for rotation at any angle, enabling multiple laser protective screen frames to be arranged into protective structures such as protective screens or protective covers of any shape. Furthermore, due to its rotatable characteristic, the laser protective screen frame of this invention can also be used as a hinged door, and since the lower beam is mounted on the support frame, therefore… As two adjacent laser protective screen frames rotate towards each other, the support frame of one laser protective screen frame can be inserted under the lower beam of the other laser protective screen frame. This allows the protective screens, shields, and other protective structures formed by the laser protective screens of this invention to be folded and stored, improving the utilization rate of storage space. Furthermore, the protective structures such as laser protective screens and shields can be arranged into corresponding shapes according to the shape of the laser operation area, ensuring complete enclosure of the laser operation area. At the same time, since the two adjacent laser protective screen frames are always kept connected through their respective movable connectors, gaps that could allow scattered and diffused lasers to emanate between adjacent light-shielding components in the protective screens, shields, and other protective structures formed by the laser protective screen frames of this invention with light-shielding components are avoided, thus providing extremely high airtightness. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the laser protective screen frame of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of the movable connector with only one slot in the laser protective screen frame of the present invention;

[0029] Figure 3 This is a schematic diagram of the overall structure of the laser protective screen frame of the present invention, which only has multiple slots for movable connecting parts;

[0030] Figure 4 This is a schematic diagram showing the connection between the light-shielding component and the slot of the movable connector of the laser protective screen frame of the present invention;

[0031] Figure 5 This is a schematic diagram of the overall structure of the lower beam of the laser protective screen frame of the present invention;

[0032] Figure 6 This is a schematic diagram of the overall structure of the laser protective screen frame support frame of the present invention;

[0033] Figure 7This is a cross-sectional structural diagram of the laser protective screen frame.

[0034] Figure 8 This is a schematic diagram of the support frame of the laser protective screen skeleton of the present invention sliding along the lower beam;

[0035] Figure 9 This is a schematic diagram showing the relative sliding of the base of the support frame of the laser protective screen skeleton of the present invention and the adapter seat.

[0036] Figure 10 This is a cross-sectional structural diagram of the laser protective screen frame support frame.

[0037] Figure 11 This is a schematic diagram of the overall structure of multiple sets of the laser protective screen skeleton of the present invention when assembled into a hinged door in the closed state;

[0038] Figure 12 This is a schematic diagram of the overall structure of multiple sets of the laser protective screen skeleton of the present invention when assembled into a hinged door in the open state;

[0039] Figure 13 This is a schematic diagram of the overall structure of a protective screen assembled from multiple sets of laser protective screen frames of the present invention, and the protective screen when folded and stored.

[0040] Figure 14 This is a schematic diagram of the overall structure when multiple sets of the laser protective screen skeleton of this invention are assembled into a rhomboid protective cover;

[0041] Figure 15 This is a schematic diagram of the overall structure when multiple sets of the laser protective screen skeletons of this invention are assembled into a square-shaped protective cover;

[0042] Figure 16 This is a schematic diagram of the overall structure when multiple sets of the laser protective screen skeletons of this invention are assembled into a Z-shaped protective screen;

[0043] Figure 17 This is a schematic diagram of a protective screen assembled from multiple sets of the laser protective screen skeleton of this invention, taking L-shaped, U-shaped and straight-line shapes as examples;

[0044] Figure 18 This is the present invention. Figure 5 A magnified structural diagram of part A;

[0045] Figure 19 This is a partially enlarged structural diagram of the laser protective screen skeleton of the present invention after multiple sets of laser protective screen skeletons are assembled into a protective screen, and the connecting plates and first bolts on the movable connecting parts of two adjacent laser protective screens are removed.

[0046] Figure 20This is a partially enlarged structural diagram showing the separation of the connecting plates and the first bolts on the movable connecting parts of two adjacent laser protective screens after multiple sets of laser protective screen frames of the present invention are assembled into a protective screen.

[0047] As shown in the figure:

[0048] 1. Light-shielding component; 2. Upper beam; 3. Lower beam; 301. Upper sliding groove; 4. Caster; 5. Movable connecting component; 501. Gear tooth; 502. Slot; 503. Central support tube; 503a. Threaded groove; 504. Connecting strip; 6. Connecting plate; 601. Guide hole; 7. First bolt; 8. Base; 801. Lower sliding groove; 9. Adapter seat; 901. Movable groove; 902. First seat body; 903. Second seat body; 904. Support plate; 10. Second bolt; 11. Washer; 12. Stop. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0050] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this invention is usually placed in when in use. They are only for the purpose of simplifying the description, and do not indicate or imply that the orientation is a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this invention.

[0051] like Figure 1 as well as Figures 11 to 17As shown, this invention relates to a laser protective screen frame, which includes an upper beam 2 and a lower beam 3. Movable connectors 5 are provided on the left and right sides of the upper beam 2 and the lower beam 3. The upper and lower ends of the movable connectors 5 are connected to the upper beam 2 and the lower beam 3 respectively. Thus, the upper beam 2, the lower beam 3, and the two sets of movable connectors 5 together constitute a frame structure. An installation position for installing a light-shielding component 1 is formed between the upper beam 2, the lower beam 3, and the two movable connectors 5. After installation, the light-shielding component 1 is supported and its free movement is restricted, keeping it fixed. A support frame is provided below the lower beam 3. In this invention, two support frames are configured, and the support frames intersect with the lower beam 3, that is, both ends of the support frames protrude outwards from the sides below the lower beam 3, providing two-point support. The method provides stable support for the upper beam 2, lower beam 3, two movable connecting parts 5, and the installed light-shielding parts 1. In this invention, the support frame is configured perpendicular to the lower beam 3 to improve the stability of the support and avoid lateral tilting. Each support frame is also connected to casters 4, with two casters 4 on each support frame, distributed at both ends of the support frame. This raises the support frame a certain height off the ground and keeps both ends of the two support frames at the same height from the ground. When the casters 4 roll, they drive the installed light-shielding parts 1 to move, realizing rapid adjustment of the position of the light-shielding parts 1. This significantly improves the efficiency of assembling the laser protective screen frame of this invention, equipped with light-shielding parts 1, into protective screens, protective covers, and other protective structures. In addition, the support frame and the lower beam 3 are slidably connected. The support frame can reciprocate along the length of the lower beam 3 without disengaging from its docking position with the lower beam 3. Any laser protective screen frame of the present invention can be detachably connected to other laser protective screen frames via movable connectors 5 on its two sides, and the two laser protective screen frames can rotate relative to each other during connection. When any number of laser protective screen frames equipped with light-shielding components 1 are to be assembled into protective screens, protective covers, or other protective structures, the movable connectors 5 on opposite sides of adjacent laser protective screen frames are connected. That is, the two installed light-shielding components 1 can be rotated around the docking position of the two movable connectors 5 as the rotation axis to adjust the included angle. During the angle adjustment process, the support frame of the two laser protective screen frames is moved synchronously to change the angle. By varying the rotation radius of the support frames during rotation, the support frames of the two laser protective screen skeletons are ensured to rotate in a staggered manner, avoiding interference between their rotation paths. This allows for rotation at any angle, enabling multiple laser protective screen skeletons to form protective screens, shields, and other protective structures of any shape. Furthermore, due to its rotatable nature, the laser protective screen skeleton of this invention can also be used as a hinged door. Since the lower beam 3 is mounted on the support frame, as two adjacent light-shielding components 1 rotate towards each other, the support frame of one laser protective screen skeleton can be inserted below the lower beam 3 of the other laser protective screen skeleton. This allows the protective screens, shields, and other protective structures formed by the laser protective screens of this invention to be folded and stored, improving the utilization rate of storage space.Furthermore, it can adapt the shape of the laser work area by forming protective screens, shields, and other protective structures accordingly, ensuring complete enclosure of the laser work area. Simultaneously, because adjacent laser protective screen frames equipped with light-shielding elements 1 are always connected via their respective movable connectors 5, gaps that could allow scattered and diffused laser light to escape between the connection points are avoided. Therefore, the protective screens, shields, and other protective structures formed by the laser protective screen frames of this invention equipped with light-shielding elements 1 possess extremely high airtightness.

[0052] like Figures 2 to 4 as well as Figures 18 to 20 As shown, the vertical projection surface of the free end of the movable connector 5 is arc-shaped. Here, the free end of the movable connector 5 is defined as the end that is away from the end used to connect with the light shield 1. Several gear teeth 501 are arranged on the outer wall of the free end of the movable connector 5. It can be understood that there is no particular limitation on the number of gear teeth 501, and any number can be set according to the requirements. Any movable connector 5 can mesh with the gear teeth 501 on other movable connector 5 through its gear teeth 501. In the meshing state, it rotates in a manner that simulates meshing gear transmission, driving the entire laser protective screen frame to rotate, thereby realizing the adjustment of the included angle between adjacent laser protective screen frames. In this invention, the length of the gear teeth 501 is configured to be the same as that of the movable connector 5, thereby avoiding gaps between two meshing movable connectors 5.

[0053] like Figures 2 to 4 as well as Figures 18 to 20 As shown, the fixed end of the movable connector 5 has at least one slot 502. Here, the fixed end of the movable connector 5 is defined as the end used to connect with the light shield 1. The slot 502 is arranged along the length of the movable connector 5. The light shield 1 can be inserted through the slot 502 of the movable connector 5 to achieve fixation with the movable connector. The above fixation is detachable. The operator can slide the movable connector 5 along the light shield 1 to separate the two, thereby facilitating the assembly of the laser protective screen frame of the present invention. In addition, extensions extending in opposite directions are formed on both sides of the opening of the slot 502. After the movable connector 5 is installed, the upper beam 2 and the lower beam 2... The end of beam 3 abuts against the extension portion. The movable connector 5 increases the contact area with the upper beam 2 and the lower beam 3 through the extension portion to reduce the pressure and improve the structural strength. It can be understood that when there is one slot 502, the movable connector 5 is connected to one light-shielding member 1. When there is more than one slot 502, each movable connector 5 can connect multiple light-shielding members 1 at the same time, so that multiple laser protective screen frames of the present invention can share the same movable connector 5. The operator can connect other laser protective screen frames of the present invention to the movable connector 5 on the other side of the movable connector 5 of the laser protective screen frame to form multiple independent areas.

[0054] like Figures 2 to 4 as well as Figure 19 and Figure 20 As shown, the movable connector 5 is provided with reinforcing ribs. It should be noted that, in order to save on manufacturing profiles, the movable connector 5 in this invention is a tubular structure. The reinforcing ribs are located in the inner tube section of the movable connector 5. The reinforcing ribs include at least one central support tube 503 and several connecting strips 504. The connecting strips 504 are arranged around the side wall of the central support tube 503 and connected to the inner wall of the movable connector 5. Based on the above configuration, the stress of the movable connector 5 can be dispersed while saving profiles, thereby improving the overall structural strength of the movable connector 5 and the laser protective screen frame of this invention. It should be noted that when there are multiple slots 502, the length of the fixed section of the movable connector 5 will also be extended accordingly, and the length of its internal space will also increase accordingly. Therefore, the overall structural strength of the movable connector is not affected by the multiple central support tubes 503 and connecting strips 504.

[0055] like Figures 18 to 20 As shown, the laser protective screen frame of the present invention also includes a connecting plate 6 and a first bolt 7. The connecting plate 6 has two guide holes 601. The positions of the two guide holes 601 are opposite to the inner tube sections of the central support tubes 503 of the two adjacent laser protective screen frames after they are connected to the two movable connecting parts 5 on opposite sides. The two ends of the inner tube sections of the central support tubes 503 are provided with threaded grooves 503a. After the two adjacent laser protective screen frames are connected by the two movable connecting parts 5 on opposite sides, the connecting plate 6 is placed at the end of the movable connecting part 5. The first bolt 7 is used so that the threaded section of the first bolt 7 passes through the guide hole 601 and is rotated. This allows the first bolt 7 to be threadedly engaged with the threaded grooves 503a in the inner tube sections of the central support tubes 503, thereby fixing the two adjacent laser protective screen frames in the position of the adjusted angle and preventing relative rotation due to external forces.

[0056] like Figures 5 to 10As shown, the support frame includes a base 8 and an adapter 9. The adapter 9 and casters 4 are respectively located at the upper and lower ends of the base 8. The adapter 9 has a movable groove 901. The lower beam 3 is mounted on the adapter 9 and embedded in the movable groove 901, ensuring that when two adjacent laser protective screen frames rotate towards each other, the base of one laser protective screen frame can be inserted under the lower beam 3 of the other laser protective screen frame. In this invention, the movable groove 901 penetrates the left and right end faces and the upper end face of the adapter 9, allowing the lower beam 3 to be inserted from above or to the side of the adapter 9. After insertion, the support frame can slide along the length of the lower beam 3 via the adapter 9. The lower beam 3 has an upper sliding groove 301 flush with the movable groove 901. It can be understood that when the lower beam 3 is inserted into the... After the adapter 9 is inserted, a portion of its upper sliding groove 301 is located in the movable groove 901. A positioning member opposite to the upper sliding groove 301 is movably connected to the adapter 9. One end of the positioning member is inserted into the upper sliding groove 301, and the end of the positioning member in the upper sliding groove 301 abuts against the inner wall of the upper sliding groove 301. In the abutting state, the adapter 9 is pressed tightly against the portion of the lower beam 3 located in its movable groove 901 by the positioning member, so that the support frame and the lower beam 3 can remain fixed. In order to improve the stability of the fixation, multiple positioning members opposite to the upper sliding groove 301 are configured in this invention, so that the adapter 9 and the lower beam 3 are fixed at multiple points. Each positioning member can disengage from the abutment position with the upper sliding groove 301 when it moves. At this time, the support frame can slide along the lower beam 3 through its adapter 9 to realize the position adjustment.

[0057] like Figure 6 , Figure 7 and Figure 10 As shown, a downward groove 801 is provided on the base 8, and the downward groove 801 is provided along the length direction of the base 8. The adapter 9 also has a positioning member opposite to the downward groove 801. It can be understood that the positioning member opposite to the downward groove 801 is also movably connected to the adapter 9. One end of the positioning member is inserted into the downward groove 801 and abuts against the inner wall of the downward groove 801. In the abutting state, the adapter 9 is pressed tightly against the base 8 by the positioning member, so that the adapter 9 and the base 8 are fixed. In order to improve the stability of the fixation, the present invention will be connected to the downward groove 801. Multiple positioning components are also configured opposite to the slide groove 801, so that the adapter 9 and the base 8 are fixed at multiple points. Each positioning component can disengage from the contact position with the slide groove 801 when it moves. At this time, the adapter 9 can slide along the length direction of the base 8 to adjust its position. When the two laser protective screen frames are connected by the movable connectors 5 on opposite sides and rotate, the distance between the opposite ends of the corresponding support seats of the two adjacent laser protective screen frames can be changed by adjusting the orientation of the base 8, so as to better avoid the interference caused by the support seats during the rotation of the corresponding laser protective screen frames.

[0058] like Figure 6 , Figure 7 and Figure 10 As shown, the vertical projection surfaces of the upper slide groove 301 and the lower slide groove 801 are both T-shaped, thus having a large inner diameter section and a small inner diameter section. The small inner diameter section is closer to the adapter 9 than the large inner diameter section. The positioning components include a second bolt 10, a washer 11, and a stop 12. The second bolt 10 is threaded onto the adapter 9, and its threaded section extends through the adapter 9 into the upper slide groove 301 and the lower slide groove 801. The operator can tightly press the adapter 9 onto the lower beam 3 and the base 8 by rotating the second bolt 10. One end of the second bolt 10 located in the upper slide groove 301 and the lower slide groove 801 is threaded onto the stop 12. The length of the stop 12 is greater than the width of the small inner diameter section of the lower slide groove 801. When the second bolt 10 rotates, it drives the stop 12 to rotate synchronously. When its long side is perpendicular to the small inner diameter section of the slide groove, the stop head 12 can abut against the transition surface of the same large inner diameter section on both sides of the small inner diameter section. Then, in conjunction with the nut part of the second bolt 10, the lower beam 3 and the base 8 on both sides of the small inner diameter section of the upper slide groove 301 and the lower slide groove 801 are clamped between the stop head 12 and the nut of the second bolt 10, which better restricts the movement of the lower beam 3 and the base 8 in the fixed state and improves the stability after fixing. The washer 11 is sleeved on the second bolt 10. It is located on the side of the adapter 9 away from the lower beam 3 and the base 8. The setting of the washer 11 avoids the nut part of the second bolt 10 from directly dropping and applying pressure to the adapter 9. The washer 11, which has a larger contact area with the adapter 9, reduces the damage to the surface of the adapter 9.

[0059] like Figure 6 and Figure 7As shown, the adapter 9 consists of a first seat 902, a second seat 903, and a support plate 904. The support plate 904 is configured in equal numbers to the first seat 902 and the second seat 903, i.e., two plates are provided. Each support plate 904 corresponds one-to-one with the first seat 902 and the second seat 903. The first seat 902 and the second seat 903 are L-shaped and T-shaped, respectively. The first seat 902 abuts against one side of any horizontal section of the second seat 903 through its vertical section. Under the action of the horizontal section of the second seat 903 that connects to the first seat 902, the vertical sections of the first seat 902 and the second seat 903 are kept apart. The gap between the vertical sections of the first seat 902 and the second seat 903 is the movable groove 901. The lower beam 3 located in the movable groove 901 is raised by the horizontal section of the second seat 903 below the movable groove 901 to avoid impact between adjacent components of the present invention. When the laser shield frame rotates towards each other so that its respective support frame is inserted under the lower beam 3, it scrapes against the lower beam 3 to prevent damage to the lower beam 3. It is understood that the positioning members are set on the horizontal and vertical sections of the first base 902 and the second base 903. When the positioning members set on the vertical sections of the first base 902 and the second base 903 move towards each other, the two vertical sections can clamp the lower beam located in the movable groove. The support plate 904 is triangular. The two waists of the support plate 904 are respectively connected to the horizontal and vertical sections of the corresponding first base 902 and the second base 903, providing support for the horizontal and vertical sections of the first base 902 and the second base 903. This can prevent the horizontal and vertical sections of the first base 902 and the second base 903 from deforming, ensure the stable clamping of the lower beam in the movable groove, and further improve the overall structural strength of the laser shield frame of the present invention.

[0060] like Figure 1 as well as Figures 11 to 17 As shown, the present invention also relates to a laser protective screen having the above-mentioned laser protective screen frame, which includes a light-shielding member 1, which is disposed between the upper beam 2, the lower beam 3 and the movable connecting members 5 on both sides. In the present invention, the light-shielding member 1 is made of laser protective fabric or laser protective plate.

[0061] Combination Figures 1 to 20 The present invention also relates to a method of using the above-mentioned laser protective screen frame, which includes the following steps:

[0062] S1: Select the required number of light-shielding components 1, and slide each light-shielding component along the slot 502 of the movable connector 5 to install them, forming a laser protective screen, with each laser protective screen arranged in a parallel row:

[0063] S2: Connect the light-shielding parts 1 of two adjacent laser protective screens through the movable connecting parts 5 on opposite sides. The connection method is to connect them by meshing the gear teeth 501 on the free elements of the two movable connecting parts 5. In the meshing state, the two adjacent laser protective screens can rotate relative to each other, thereby realizing the adjustment of the included angle.

[0064] S3-1: To prevent the supporting feet of two adjacent laser protective screens from obstructing each other's rotation path during rotation, the second bolt 10 of the positioning member on the vertical section of the first seat 902 and the second seat 903 of the adapter 9 is rotated according to the required rotation angle of the two adjacent laser protective screens. This reduces the pressure applied by the second bolt 10 to the vertical section of the first seat 902 and the second seat 903, releasing the vertical section of the first seat 902 and the second seat 903 from the tight contact with the lower beam 3. At this time, the support frame can be slid along the upper slide groove 301 as a whole, thereby adjusting the relative position of the support frames on the two laser protective screens.

[0065] S3-2: Rotate the second bolt 10 of the positioning member on the horizontal section of the first seat 902 and the second seat 903 of the adapter 9 to reduce the pressure applied by the second bolt 10 on the adapter 9, so that the first seat 902 and the second seat 903 are released from the tight contact with the base 8. At this time, the adapter 9 can be slid along the sliding groove 801 on the base 8 to adjust the distance between the opposite ends of the base 8 of the two laser protective screen support frames.

[0066] S4-1: After the positions of the support frames of the two laser protective screens are adjusted, reset the second bolts 10 on the vertical sections of the first seat 902 and the second seat 903 of the adapter 9, and press the vertical sections of the first seat 902 and the second seat 903 onto the lower beam 3 again through the second bolts 10, so that the support frame is fixed to the lower beam 3.

[0067] S4-2: After the positions of the two laser protective screen support bases 8 are adjusted, reset the second bolts 10 on the horizontal sections of the first base 902 and the second base 903 of the adapter 9, and press the horizontal sections of the first base 902 and the second base 903 onto the base 8 again through the second bolts 10, so that the adapter 9 is fixed to the base 8.

[0068] The embodiments and descriptions above are merely illustrative of the principles and preferred embodiments of the present invention. Various changes and modifications may be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A laser protective screen frame, comprising an upper beam (2) and a lower beam (3), wherein a support frame is provided below the lower beam (3) and the support frame intersects with the lower beam (3), and casters (4) are provided on the support frame, characterized in that, The lower beam (3) is slidably connected to the support frame. Movable connectors (5) are provided on both the left and right sides of the upper beam (2) and the lower beam (3). The upper and lower ends of the movable connectors (5) are connected to the upper beam (2) and the lower beam (3) respectively. Any movable connector (5) can be detachably connected to other movable connectors (5) and can rotate relative to each other during connection. The vertical projection surface of the free end of the movable connector (5) is arc-shaped, and several gear teeth (501) are arranged on the outer wall of its free end. Any movable connector (5) can mesh with the gear teeth (501) on other movable connectors (5) through its gear teeth (501). The fixed end of the movable connector (5) is provided with at least one slot (502). Arranged along the length of the movable connector (5), the movable connector (5) is provided with reinforcing ribs, the reinforcing ribs include at least one central support tube (503) and multiple connecting strips (504), the connecting strips (504) are arranged around the side wall of the central support tube (503) and connected to the inner wall of the movable connector (5), it also includes a connecting plate (6) and a first bolt (7), the connecting plate (6) is provided with guide holes (601) that are opposite to the inner tube sections of the central support tubes (503) after the two movable connectors (5) are connected, the two ends of the inner tube sections of the central support tubes (503) are provided with threaded grooves (503a), and the threaded section of the first bolt (7) passes through the guide hole (601) and is threadedly connected to the inner tube section of the central support tube (503).

2. The laser protective screen frame according to claim 1, characterized in that, The support frame includes a base (8) and an adapter (9). The adapter (9) and casters (4) are respectively located at the upper and lower ends of the base (8). The adapter (9) has a movable groove (901). The lower beam (3) is embedded in the movable groove (901). The lower beam (3) has an upper sliding groove (301) that is flush with the movable groove (901). The adapter (9) is movably connected to a positioning member that is opposite to the upper sliding groove (301). One end of the positioning member is inserted into the upper sliding groove (301) and abuts against the inner wall of the upper sliding groove (301). It can disengage from the abutment position of the upper sliding groove (301) when it moves.

3. The laser protective screen frame according to claim 2, characterized in that, The base (8) is provided with a sliding groove (801), and the adapter (9) is also provided with a positioning member opposite to the sliding groove (801). One end of the positioning member is inserted into the sliding groove (801) and abuts against the inner wall of the sliding groove (801), and can disengage from the abutment position of the sliding groove (801) when it moves.

4. The laser protective screen frame according to claim 3, characterized in that, The vertical projection surfaces of the upper slide groove (301) and the lower slide groove (801) are both T-shaped. The positioning component includes a second bolt (10), a washer (11), and a stop (12). The second bolt (10) is threaded onto the adapter (9), and its threaded section extends through the adapter (9) to the upper slide groove (301) and the lower slide groove (801) and is threaded onto the stop (12). The length of the stop (12) is greater than the width of the small inner diameter section of the upper slide groove (301) and the lower slide groove (801). The washer (11) is connected to the second bolt (10) and is pressed by the second bolt (10) onto the side of the adapter (9) away from the lower beam (3) and the base (8).

5. The laser protective screen frame according to claim 3, characterized in that, The adapter (9) includes a first seat (902), a second seat (903), and two support plates (904). The first seat (902) and the second seat (903) are L-shaped and T-shaped, respectively. The first seat (902) abuts against one side of any horizontal section of the second seat (903) through its vertical section. The movable groove (901) is formed between the vertical sections of the first seat (902) and the second seat (903). The two support plates (904) correspond one-to-one with the first seat (902) and the second seat (903). Both support plates (904) are triangular. The two sides of the support plate (904) are connected to the horizontal and vertical sections of the corresponding first seat (902) and second seat (903), respectively.

6. A laser protective screen having the laser protective screen frame as described in any one of claims 1-5, characterized in that, It includes a light-shielding member (1) disposed between the upper beam (2), the lower beam (3), and the movable connecting members (5) on both sides.

7. A method of using the laser protective screen frame according to any one of claims 1-6, characterized in that, It includes the following steps: S1: Select the required number of light-shielding components (1), and slide each light-shielding component (1) along the slot (502) of the movable connector (5) to install it, forming a laser protective screen, so that each laser protective screen is arranged in a parallel row: S2: The two adjacent laser protective screens are engaged by the gear teeth (501) on the free end of the movable connector (5) on opposite sides, so that the two adjacent laser protective screens can rotate relative to each other; S3-1: According to the required rotation angle of the two adjacent laser protective screens, rotate the second bolt (10) of the positioning part on the corresponding adapter (9) that is opposite to the lower beam (3) so that the adapter (9) is released from the tight contact with the lower beam (3), and slide the support frame along the upper slide groove (301) to adjust the relative position of the support frames on the two laser protective screens. S3-2: Rotate the second bolt of the positioning part on the adapter (9) that is opposite to the base (8) to release the adapter (9) from the tight contact with the base (8), slide the adapter along the sliding groove (801) to adjust the distance between the opposite ends of the bases (8) of the two laser protective screen support frames. S4-1: After the support frame position is adjusted, reset the second bolt (10) of the positioning part on the adapter (9) that is opposite to the lower beam (3) to fix the support frame to the lower beam (3); S4-2: After the position of the base (8) of the support frame is adjusted, reset the second bolt (10) of the positioning part on the adapter (9) that is opposite to the base (8) to fix the adapter (9) and the base (8).

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