Support frame, protective cover and laser cutting machine

Abstract

This application provides a support frame, a protective cover, and a laser cutting machine. The third end of the second frame is connected to the first end of the first frame, the fifth end of the third frame is connected to the second end of the first frame, the seventh end of the fourth frame is connected to the fourth end of the second frame, and the eighth end of the fourth frame is connected to the sixth end of the third frame. A top support bracket is positioned above at least two of the first, second, third, and fourth frames. Both the first and second plates are housed within the frame of the first frame. The design of this support frame needs to be integrated with the overall sheet metal of the protective cover to ensure the stability of the overall structure. It also considers the installation method and support structure of the door panel in the middle of the protective cover, as well as how to install and fix the two corners of the protective cover, ensuring the stability of the sheet metal installed at the corners. This eliminates the need for square tube frames at the front and middle sections, saving manufacturing costs.

Description

Technical Field

[0001] This application relates to the field of laser cutting technology, and in particular to support frames, protective covers, and laser cutting machines. Background Technology

[0002] A large-format laser cutting machine consists of four parts: the solid-state laser cutting machine body, a high-power laser power supply, a water-cooled cabinet, and a computer operation control console. The outer casing of a large-format laser cutting machine typically refers to a safety protection device specifically designed for laser cutting equipment. Its main function is to improve the operational stability and safety of the equipment, protect critical components from dust, coolant, cutting oil, metal filings, and other impurities, ensure the normal operation of the laser cutting equipment, and improve production efficiency.

[0003] Large-format laser cutting machine housings come in various types and materials. For example, armor-style guide rail protective covers are made of high-strength nylon, offering excellent flexibility to easily adapt to guide rails of different lengths, while also providing good tear resistance and flame retardancy. Stainless steel covers, typically made of steel plate, are sturdy and durable, providing strong protection suitable for working environments requiring high protective strength. Accordion-style guide rail protective covers have a smooth surface, regular shape, and beautiful appearance. They are usually supported by a PVC frame, suitable for medium-temperature environments, and offer flexible production methods, allowing for customization according to customer needs.

[0004] However, the outer casing of existing large-format laser cutting machines uses a lot of square tube frames, which ensures structural strength but results in high manufacturing costs. Utility Model Content

[0005] Therefore, it is necessary to provide a support frame, a protective cover, and a laser cutting machine to address the aforementioned technical problem of high manufacturing costs.

[0006] This application provides a support framework, the support framework comprising:

[0007] A first frame, the first frame having a first frame end and a second frame end;

[0008] The second frame has a third end and a fourth end, the third end of the second frame being connected to the first end of the first frame;

[0009] The third frame has a fifth frame end and a sixth frame end, and the fifth frame end of the third frame is connected to the second frame end of the first frame.

[0010] The fourth frame has a seventh frame end and an eighth frame end, the seventh frame end of the fourth frame is connected to the fourth frame end of the second frame, and the eighth frame end of the fourth frame is connected to the sixth frame end of the third frame.

[0011] A top support bracket is disposed above at least two of the first frame, the second frame, the third frame, and the fourth frame;

[0012] A panel assembly, comprising a first panel and a second panel, both the first panel and the second panel being disposed within the frame of the first frame, and having a space between the first panel and the second panel.

[0013] In one embodiment, the first frame, the second frame, the third frame, and the fourth frame are configured as planar frames, with the first frame and the fourth frame being parallel to each other, and the second frame and the third frame being parallel to each other. The first frame, the second frame, the third frame, the fourth frame, and the top support bracket together enclose an inner space.

[0014] In one embodiment, the first frame includes a first top beam and a plurality of first longitudinal beams, the two ends of the first top beam being connected to a third end of the second frame and a fifth end of the third frame, respectively; the plurality of first longitudinal beams are all connected to the first top beam; and / or,

[0015] The second frame includes a second top beam and a plurality of second longitudinal beams. The two ends of the second top beam are respectively connected to the first end of the first frame and the seventh end of the fourth frame. The top ends of the plurality of second longitudinal beams are all connected to the first top beam, and the plurality of second longitudinal beams are arranged along the length of the second top beam; and / or,

[0016] The third frame includes a third top beam and several third longitudinal beams. The two ends of the third top beam are respectively connected to the second end of the first frame and the eighth end of the fourth frame. The top ends of the several third longitudinal beams are all connected to the third top beam, and the several third longitudinal beams are arranged along the length of the third top beam; and / or,

[0017] The fourth frame includes a fourth top beam, a middle beam, and several fourth longitudinal beams. The fourth top beam and the middle beam are parallel to each other. The two ends of the fourth top beam and the middle beam are respectively connected to the fourth end of the second frame and the sixth end of the third frame. The top ends of several fourth longitudinal beams are connected to the fourth top beam, and the bottom ends of several fourth longitudinal beams are connected to the middle beam. The several fourth longitudinal beams are arranged along the length direction of the fourth top beam.

[0018] In one embodiment, the second longitudinal beam is provided with at least two first connecting beams, one end of each of the first connecting beams is connected to the second longitudinal beam, and the other end of each of the first connecting beams faces the space inside the frame.

[0019] Among them, a plurality of the first connecting beams are arranged along the length direction of the second longitudinal beam, and one of the first connecting beams is connected to the bottom end of the second longitudinal beam;

[0020] And / or,

[0021] The third longitudinal beam is provided with at least two second connecting beams, one end of each of the second connecting beams is connected to the third longitudinal beam, and the other end of each of the second connecting beams faces the space inside the frame.

[0022] Among them, a number of second connecting beams are arranged along the length direction of the third longitudinal beam, and one of the second connecting beams is connected to the bottom end of the third longitudinal beam.

[0023] In one embodiment, the support frame includes:

[0024] The first connecting component includes a first connecting longitudinal beam, a plurality of first connecting transverse beams, and a first closing beam. One end of each of the plurality of first connecting transverse beams is connected to the first connecting longitudinal beam, and the other end of some of the first connecting transverse beams faces away from the space inside the frame. The first closing beam is disposed at the end of the plurality of first connecting transverse beams facing away from the space inside the frame.

[0025] In one embodiment, the support frame includes:

[0026] The second connecting assembly includes an inclined beam, a square frame, and a plurality of second connecting beams. The inclined beam is connected to the fourth frame, the square frame is connected to the fourth frame, one end of each of the plurality of second connecting beams is connected to the square frame, and the other ends of the plurality of second connecting beams face different directions.

[0027] In one embodiment, the support frame includes:

[0028] An electrical control box is located within the frame space and is connected to the second frame.

[0029] In one embodiment, the first plate is configured as a sheet metal part; and / or,

[0030] The first plate is configured to be made of metallic iron; and / or,

[0031] The thickness of the first plate is configured to be 1 mm to 2 mm; and / or,

[0032] The first plate has at least one first window; and / or,

[0033] One end of the first plate is connected to the first frame end of the first frame; and / or,

[0034] The second plate is configured as a sheet metal part; and / or,

[0035] The material of the second plate is configured as metallic iron; and / or,

[0036] The thickness of the second plate is configured to be 1 mm to 2 mm; and / or,

[0037] The second plate has at least one second window; and / or,

[0038] One end of the second plate is connected to the second frame end of the first frame.

[0039] This application provides a protective shield, the protective shield comprising:

[0040] The supporting framework;

[0041] An outer cover is disposed outside the support frame.

[0042] This application provides a laser cutting machine, the laser cutting machine comprising:

[0043] The protective cover;

[0044] The cutting host is located inside the protective cover.

[0045] Among the aforementioned support frame, protective cover, and laser cutting machine, the support frame is applicable to large-format fiber laser cutting machine tables. Based on the mutual assembly of the first frame, second frame, third frame, fourth frame, and top support bracket, the support frame can have strong structural stability and high load-bearing capacity. The overall structural design needs to be combined with the sheet metal of the entire protective cover to ensure the overall structural stability of the protective cover. At the same time, the installation position of the electrical control box and the square tube frame structure used for support, the door panel installation method and support structure in the middle part of the protective cover, and how to install and fix the two corners of the protective cover are all considered to ensure the stability of the sheet metal installed on the corner side. The square tube frame at the front end and middle part is eliminated, saving manufacturing costs. Attached Figure Description

[0046] Figure 1 A perspective view of a support frame provided in one embodiment of this application.

[0047] Figure 2 For example Figure 1The diagram shows a first enlarged partial view of the support frame.

[0048] Figure 3 For example Figure 1 The second enlarged schematic diagram of the support frame shown.

[0049] Icon labels:

[0050] 1000, First frame; 2000, Second frame; 3000, Third frame; 4000, Fourth frame; 5000, Top support bracket; 6000, First connecting assembly; 7000, Second connecting assembly; 8000, Electrical control box;

[0051] 1001, First frame end; 1002, Second frame end; 1100, First top beam; 1200, First longitudinal beam;

[0052] 1300, Panel assembly; 1310, First panel; 1320, Second panel; 1330, Spacing;

[0053] 2001, Third frame end; 2002, Fourth frame end; 2100, Second top beam; 2200, Second longitudinal beam; 2300, First connecting beam;

[0054] 3001, Fifth frame end; 3002, Sixth frame end; 3100, Third top beam; 3200, Third longitudinal beam; 3300, Second connecting beam;

[0055] 4001, Seventh frame end; 4002, Eighth frame end; 4100, Fourth top beam; 4200, Middle beam; 4300, Fourth longitudinal beam;

[0056] 6100, First connecting longitudinal beam; 6200, First connecting transverse beam; 6300, First closing beam;

[0057] 7100, Inclined beam; 7200, Square frame; 7300, Second connecting beam. Detailed Implementation

[0058] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0059] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0060] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0064] This application provides a laser cutting machine, which includes a protective cover and a cutting main unit. The cutting main unit is disposed inside the protective cover, which protects the cutting main unit. The protective cover may include a support frame and an outer cover. The outer cover is disposed outside the support frame, which supports a certain internal space. The outer cover covers the support frame and encloses this internal space, forming a space for storing and protecting the cutting main unit.

[0065] For the supporting framework mentioned above, please refer to [link / reference]. Figure 1 As shown, the support frame may include a first frame 1000, a second frame 2000, a third frame 3000, a fourth frame 4000, a top support bracket 5000, and a panel assembly 1300. Figure 1 As shown, in order to better describe the relative assembly position relationship between the first frame 1000, the second frame 2000, the third frame 3000 and the fourth frame 4000, the first frame 1000 can be defined as having a first frame end 1001 and a second frame end 1002, the second frame 2000 having a third frame end 2001 and a fourth frame end 2002, the third frame 3000 having a fifth frame end 3001 and a sixth frame end 3002, and the fourth frame 4000 having a seventh frame end 4001 and an eighth frame end 4002.

[0066] Using the first frame end 1001, second frame end 1002, third frame end 2001, fourth frame end 2002, fifth frame end 3001, sixth frame end 3002, seventh frame end 4001, and eighth frame end 4002 as nodes, the third frame end 2001 of the second frame 2000 can be connected to the first frame end 1001 of the first frame 1000, the fifth frame end 3001 of the third frame 3000 can be connected to the second frame end 1002 of the first frame 1000, the seventh frame end 4001 of the fourth frame 4000 can be connected to the fourth frame end 2002 of the second frame 2000, and the eighth frame end 4002 of the fourth frame 4000 can be connected to the sixth frame end 3002 of the third frame 3000. Thus, the first frame 1000, second frame 2000, third frame 3000, and fourth frame 4000 enclose an inner space.

[0067] Furthermore, the top support bracket 5000 is positioned above at least two of the first frame 1000, second frame 2000, third frame 3000, and fourth frame 4000. The top support bracket 5000 also forms a certain degree of enclosure above these frames, allowing them to collectively enclose the aforementioned internal space. The top support bracket 5000 can be welded from 40x40x2 square tubing. It not only supports the tarpaulin but also enhances overall stability.

[0068] The panel assembly 1300 may include a first panel 1310 and a second panel 1320, both of which are disposed within the frame of the first frame 1000, with a gap 1330 between them. In one embodiment, the first panel 1310 is configured as a sheet metal part. The material of the first panel 1310 is configured as iron. The thickness of the first panel 1310 is configured as 1mm to 2mm, for example, using 1.5mm thick sheet metal. The first panel 1310 has at least one first window. One end of the first panel 1310 is connected to the first end 1001 of the first frame 1000. Similarly, the second panel 1320 is configured as a sheet metal part. The material of the second panel 1320 is configured as iron. The thickness of the second panel 1320 is configured as 1mm to 2mm, for example, using 1.5mm thick sheet metal. The second plate 1320 has at least one second window. One end of the second plate 1320 is connected to the second frame end 1002 of the first frame 1000.

[0069] The third end 2001 of the second frame 2000 can be connected to the first end 1001 of the first frame 1000 at any angle; the fifth end 3001 of the third frame 3000 can be connected to the second end 1002 of the first frame 1000 at any angle; the seventh end 4001 of the fourth frame 4000 can be connected to the fourth end 2002 of the second frame 2000 at any angle; and the eighth end 4002 of the fourth frame 4000 can be connected to the sixth end 3002 of the third frame 3000 at any angle. Therefore, the space enclosed by the first frame 1000, the second frame 2000, the third frame 3000, and the fourth frame 4000 can have various spatial shapes.

[0070] For example, see Figure 1As shown, in one embodiment, the first frame 1000, the second frame 2000, the third frame 3000 and the fourth frame 4000 are configured as planar frames. The first frame 1000 and the fourth frame 4000 are parallel to each other, the second frame 2000 and the third frame 3000 are parallel to each other, and the first frame 1000, the second frame 2000, the third frame 3000, the fourth frame 4000 and the top support bracket 5000 together enclose a rectangular frame space.

[0071] In one embodiment, the first frame 1000 may include a first top beam 1100 and a plurality of first longitudinal beams 1200. The number of the plurality of first longitudinal beams 1200 may be determined according to actual needs and factors such as the length of the first top beam 1100. The two ends of the first top beam 1100 are respectively connected to the third frame end 2001 of the second frame 2000 and the fifth frame end 3001 of the third frame 3000. The plurality of first longitudinal beams 1200 are all connected to the first top beam 1100. At least one of the first top beam 1100 and the plurality of first longitudinal beams 1200 may be made of 40x40x2 square tubing, and the connection between the first top beam 1100 and the plurality of first longitudinal beams 1200 may be achieved by welding.

[0072] The second frame 2000 may include a second top beam 2100 and a plurality of second longitudinal beams 2200. The number of the plurality of second longitudinal beams 2200 can be determined according to actual needs and factors such as the length of the second top beam 2100. For example, the plurality of second longitudinal beams 2200 can be set to 6 to 8. The two ends of the second top beam 2100 are respectively connected to the first end 1001 of the first frame 1000 and the seventh end 4001 of the fourth frame 4000. The top ends of the plurality of second longitudinal beams 2200 are all connected to the first top beam 1100, and the plurality of second longitudinal beams 2200 are arranged along the length direction of the second top beam 2100. The plurality of second longitudinal beams 2200 can be kept in a generally parallel state.

[0073] In one embodiment, the second longitudinal beam 2200 may be provided with at least two first connecting beams 2300, one end of each of the first connecting beams 2300 being connected to the second longitudinal beam 2200, and the other ends of each of the first connecting beams 2300 facing the space within the frame. The first connecting beams 2300 are arranged along the length of the second longitudinal beam 2200, and one of the first connecting beams 2300 is connected to the bottom end of the second longitudinal beam 2200. At least one of the second top beam 2100 and the second longitudinal beams 2200 may be a 40x40x2 square tube, and the connection between the second top beam 2100 and the second longitudinal beams 2200 may be achieved by welding.

[0074] The third frame 3000 may include a third top beam 3100 and several third longitudinal beams 3200. The number of third longitudinal beams 3200 can be determined according to actual needs and factors such as the length of the third top beam 3100. For example, there may be 6 to 8 third longitudinal beams 3200. The two ends of the third top beam 3100 are respectively connected to the second end 1002 of the first frame 1000 and the eighth end 4002 of the fourth frame 4000. The top ends of the several third longitudinal beams 3200 are all connected to the third top beam 3100, and the several third longitudinal beams 3200 are arranged along the length direction of the third top beam 3100. The several third longitudinal beams 3200 can be kept in a generally parallel state.

[0075] Among them, at least one of the third top beam 3100 and the plurality of third longitudinal beams 3200 can be made of 40x40x2 square tubing, and the connection between the third top beam 3100 and the plurality of third longitudinal beams 3200 can be achieved by welding.

[0076] The fourth frame 4000 includes a fourth top beam 4100, a middle beam 4200, and several fourth longitudinal beams 4300. The number of fourth longitudinal beams 4300 can be determined according to actual needs and factors such as the length of the fourth top beam 4100. The fourth top beam 4100 and the middle beam 4200 are parallel to each other. The two ends of the fourth top beam 4100 and the middle beam 4200 are respectively connected to the fourth end 2002 of the second frame 2000 and the sixth end 3002 of the third frame 3000. The top ends of the several fourth longitudinal beams 4300 are all connected to the fourth top beam 4100, and the bottom ends of the several fourth longitudinal beams 4300 are all connected to the middle beam 4200. The several fourth longitudinal beams 4300 are arranged along the length direction of the fourth top beam 4100. The several fourth longitudinal beams 4300 can maintain a roughly parallel state.

[0077] Among them, at least one of the fourth top beam 4100, the middle beam 4200, and the plurality of fourth longitudinal beams 4300 can be made of 40x40x2 square tubing, and the connection between the fourth top beam 4100, the middle beam 4200, and the plurality of fourth longitudinal beams 4300 can be achieved by welding. The fourth frame 4000 is used to fix the rear tail plate.

[0078] In one embodiment, the third longitudinal beam 3200 is provided with at least two second connecting beams 3300, one end of each of the second connecting beams 3300 is connected to the third longitudinal beam 3200, and the other end of each of the second connecting beams 3300 faces the space within the frame. The second connecting beams 3300 are arranged along the length of the third longitudinal beam 3200, and one of the second connecting beams 3300 is connected to the bottom end of the third longitudinal beam 3200.

[0079] See Figure 2As shown, in one embodiment, the support frame may include a first connecting component 6000, which includes a first connecting longitudinal beam 6100, a plurality of first connecting transverse beams 6200, and a first closing beam 6300. One end of each of the plurality of first connecting transverse beams 6200 is connected to the first connecting longitudinal beam 6100, and the other end of some of the first connecting transverse beams 6200 faces away from the space inside the frame. The first closing beam 6300 is disposed at one end of the plurality of first connecting transverse beams 6200 facing away from the space inside the frame.

[0080] In this design, at least one of the first connecting longitudinal beam 6100, the plurality of first connecting transverse beams 6200, and the first closing beam 6300 may be made of a 40x40x2 square tubing, and the connection between the first connecting longitudinal beam 6100, the plurality of first connecting transverse beams 6200, and the first closing beam 6300 may be achieved by welding. The first connecting assembly 6000 may be located at the connection position between the second frame 2000 and the fourth frame 4000, and may be used to fix the second frame 2000 and the fourth frame 4000.

[0081] See Figure 3 As shown, in one embodiment, the support frame may include a second connecting component 7000, which includes an inclined beam 7100, a square frame 7200, and a plurality of second connecting beams 7300. The inclined beam 7100 is connected to the fourth frame 4000, the square frame 7200 is connected to the fourth frame 4000, one end of each of the plurality of second connecting beams 7300 is connected to the square frame 7200, and the other ends of the plurality of second connecting beams 7300 face different directions.

[0082] At least one of the inclined beam 7100, the square frame 7200, and the plurality of second connecting beams 7300 may be made of 40x40x2 square tubing, and the connection between the inclined beam 7100, the square frame 7200, and the plurality of second connecting beams 7300 may be achieved by welding. The second connecting assembly 7000 may be located at the connection position between the third frame 3000 and the fourth frame 4000, and may be used to fix the third frame 3000 and the fourth frame 4000.

[0083] In one embodiment, the support frame may further include an electrical control box 8000, which is located within the frame space and connected to the second frame 2000. The support frame can be fixed to the outer wall of the bed, and the electrical control box 8000 within the support frame can be locked to the left side of the bed.

[0084] The aforementioned support frame is applicable to large-format fiber laser cutting machines. Based on the assembly of the first frame 1000, second frame 2000, third frame 3000, fourth frame 4000, and top support bracket 5000, this support frame possesses strong structural stability and high load-bearing capacity. The overall structural design must be integrated with the entire protective cover sheet metal to ensure the overall structural stability of the protective cover. Simultaneously, the installation position of the electrical control box 8000 and the supporting square tube frame structure must be considered, as well as the installation method and support structure of the door panel in the middle of the protective cover, and how to install and fix the two corners of the protective cover, ensuring the stability of the sheet metal installed on the corner sides. This eliminates the need for square tube frames at the front and middle sections, saving manufacturing costs. The electrical control box 8000 is positioned on the left for easy maintenance.

[0085] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A support frame, characterized in that, The supporting framework includes: A first frame, the first frame having a first frame end and a second frame end; The second frame has a third end and a fourth end, the third end of the second frame being connected to the first end of the first frame; The third frame has a fifth frame end and a sixth frame end, and the fifth frame end of the third frame is connected to the second frame end of the first frame. The fourth frame has a seventh frame end and an eighth frame end, the seventh frame end of the fourth frame is connected to the fourth frame end of the second frame, and the eighth frame end of the fourth frame is connected to the sixth frame end of the third frame. A top support bracket is disposed above at least two of the first frame, the second frame, the third frame, and the fourth frame; A panel assembly, comprising a first panel and a second panel, both the first panel and the second panel being disposed within the frame of the first frame, and having a space between the first panel and the second panel.

2. The support frame according to claim 1, characterized in that, The first frame, the second frame, the third frame, and the fourth frame are configured as planar frames. The first frame and the fourth frame are parallel to each other, and the second frame and the third frame are parallel to each other. The first frame, the second frame, the third frame, the fourth frame, and the top support bracket together enclose the space inside the frame.

3. The support frame according to claim 2, characterized in that, The first frame includes a first top beam and a plurality of first longitudinal beams, the two ends of the first top beam being connected to the third end of the second frame and the fifth end of the third frame, respectively; the plurality of first longitudinal beams are all connected to the first top beam; and / or, The second frame includes a second top beam and a plurality of second longitudinal beams. The two ends of the second top beam are respectively connected to the first end of the first frame and the seventh end of the fourth frame. The top ends of the plurality of second longitudinal beams are all connected to the first top beam, and the plurality of second longitudinal beams are arranged along the length of the second top beam; and / or, The third frame includes a third top beam and several third longitudinal beams. The two ends of the third top beam are respectively connected to the second end of the first frame and the eighth end of the fourth frame. The top ends of the several third longitudinal beams are all connected to the third top beam, and the several third longitudinal beams are arranged along the length of the third top beam; and / or, The fourth frame includes a fourth top beam, a middle beam, and several fourth longitudinal beams. The fourth top beam and the middle beam are parallel to each other. The two ends of the fourth top beam and the middle beam are respectively connected to the fourth end of the second frame and the sixth end of the third frame. The top ends of several fourth longitudinal beams are connected to the fourth top beam, and the bottom ends of several fourth longitudinal beams are connected to the middle beam. The several fourth longitudinal beams are arranged along the length direction of the fourth top beam.

4. The support frame according to claim 3, characterized in that, The second longitudinal beam is provided with at least two first connecting beams, one end of each of the first connecting beams is connected to the second longitudinal beam, and the other end of each of the first connecting beams faces the space inside the frame. Among them, a plurality of the first connecting beams are arranged along the length direction of the second longitudinal beam, and one of the first connecting beams is connected to the bottom end of the second longitudinal beam; And / or, The third longitudinal beam is provided with at least two second connecting beams, one end of each of the second connecting beams is connected to the third longitudinal beam, and the other end of each of the second connecting beams faces the space inside the frame. Among them, a number of second connecting beams are arranged along the length direction of the third longitudinal beam, and one of the second connecting beams is connected to the bottom end of the third longitudinal beam.

5. The support frame according to claim 3, characterized in that, The supporting framework includes: The first connecting component includes a first connecting longitudinal beam, a plurality of first connecting transverse beams, and a first closing beam. One end of each of the plurality of first connecting transverse beams is connected to the first connecting longitudinal beam, and the other end of some of the first connecting transverse beams faces away from the space inside the frame. The first closing beam is disposed at the end of the plurality of first connecting transverse beams facing away from the space inside the frame.

6. The support frame according to claim 3, characterized in that, The supporting framework includes: The second connecting assembly includes an inclined beam, a square frame, and a plurality of second connecting beams. The inclined beam is connected to the fourth frame, the square frame is connected to the fourth frame, one end of each of the plurality of second connecting beams is connected to the square frame, and the other ends of the plurality of second connecting beams face different directions.

7. The support frame according to claim 2, characterized in that, The supporting framework includes: An electrical control box is located within the frame space and is connected to the second frame.

8. The support frame according to claim 1, characterized in that, The first plate is configured as a sheet metal part; and / or, The first plate is configured to be made of metallic iron; and / or, The thickness of the first plate is configured to be 1 mm to 2 mm; and / or, The first plate has at least one first window; and / or, One end of the first plate is connected to the first frame end of the first frame; and / or, The second plate is configured as a sheet metal part; and / or, The material of the second plate is configured as metallic iron; and / or, The thickness of the second plate is configured to be 1 mm to 2 mm; and / or, The second plate has at least one second window; and / or, One end of the second plate is connected to the second frame end of the first frame.

9. A protective cover, characterized in that, The protective shield includes: Support frame as described in any one of claims 1-8; An outer cover is disposed outside the support frame.

10. A laser cutting machine, characterized in that, The laser cutting machine includes: The protective cover as described in claim 9; The cutting host is located inside the protective cover.

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