A convenient large aluminum alloy advertising light box hinge

Abstract

The invention discloses a large aluminum alloy advertising light box hinge that is easy to assemble. The hinge is provided with a light box body that can be built-in with advertisements, and the light box body is composed of a face frame and a main frame; it includes: a limit bar, which is installed on the inner surface of the face frame, and a nesting groove is provided in the middle and upper section of the inner surface of the face frame, and a movable hinge is connected to the edge of the inner surface of the face frame, and a through hole is provided in the middle and lower section of the inner surface of the movable hinge, and then the inner surface of the through hole is penetrated and connected with a limit bolt. The large aluminum alloy advertising light box hinge that is easy to assemble is provided with a face frame and a main frame that cooperate with each other, and the movable hinge and the positioning hinge are assembled to open and close, and the rotating shaft of the movable hinge assembly is provided with a positioning pin to prevent the movable hinge and the positioning hinge from falling off, and cooperates with the oblique support and the hook of the positioning hinge assembly to improve the support stability, and cooperates with the use of the card slot, the card bar and the limit column to improve the stability of the positioning hinge and the light box body.

Description

Technical Field

[0001] The invention relates to the technical field of advertising light box hinges, in particular to a large-scale aluminum alloy advertising light box hinge which is convenient to assemble. Background Art

[0002] In today's society where advertising is popular, introducing merchants' products through advertisements can effectively encourage more and more people from different places to understand the items sold by merchants. When advertising, special advertising light boxes are used for display, and assembled hinges are used to adjust the opening and closing of the light boxes. However, there are still some problems with the existing advertising light box hinges when using them.

[0003] In the prior art, the utility model discloses an invisible hinge for an advertising light box in the authorization publication (announcement) number: CN207453716U. The hinge is arranged in a cavity between a door frame and a box body. The lower hinge (2) comprises a T-shaped connecting seat (2.1). The upper end of the T-shaped connecting seat (2.1) has a curved support (2.2) hinged to the upper hinge (1). The curved support (2.2) has a concave structure (2.21) on the side opposite to the box body (5). The contact portion between the box body (5) and the door frame (4) has an upward folded edge. The upper and lower ends of the door frame (4) are both provided with folded edges. The length of the folded edge (4.2) at the lower end of the door frame is less than the length of the folded edge (4.1) at the upper end. The upper hinge (1) is fixed to the lower end of the folded edge (4.1) at the upper end of the door frame. The utility model can realize the 90° rotation opening and closing of the light box, and at the same time improve the overall aesthetics and sealing of the light box, and increase the service life of the light box;

[0004] During the operation of the above-mentioned device, the hinge is installed in the cavity between the door frame and the box body. When the door frame is closed, it will not be exposed outside the box body at all, and will not affect the overall aesthetics of the box body; the concave structure on the lower hinge on the side opposite to the box body is used to accommodate the folded edge of the upper end of the door frame to prevent interference with the door sill. At the same time, the gap between the folded edge of the door frame and the box body is very small, thereby ensuring the sealing of the light box and preventing water leakage from shortening the life of the light box; the curved support of the lower hinge increases the extreme opening and closing angle of the door frame, which is more convenient for opening and closing to replace advertisements or lamps, but when repairing the light box, it is not convenient to quickly disassemble it, and the excessive opening and closing angle affects the overall stability of the box body.

[0005] In addition, in the prior art, the authorization disclosure (announcement) number: CN206058834U in "An advertising light box and its parent-child hinge" discloses a parent-child hinge including a hinge mother piece and a hinge child piece pivotally connected by a rotating shaft, wherein any one of them is fixedly connected to the face frame of the external box body, and the other is fixedly connected to the main frame of the external box body, and one side edge of the hinge mother piece and one side edge of the hinge child piece are respectively provided with a first sleeve and a second sleeve for inserting the rotating shaft, and the axis of the first sleeve is located outside the plane where the hinge mother piece is located and\or the axis of the second sleeve is located outside the plane where the hinge child piece is located. Since the parent-child hinge is a parent-child hinge with an eccentric core, the gap between the bottom surface of the hinge and the panel of the external box body can be greatly reduced when fixedly connected, the stability of the connection between the face frame and the main frame is ensured, and the limit angle value of the face frame opening is increased, so that the face frame can be safely and fully opened without leaving a large gap between the wall-mounted advertising light box and the wall, which indirectly reduces the wall processing amount. The utility model also discloses an advertising light box including the above-mentioned parent-child hinge;

[0006] During the operation of the above device, since the hinge is an off-axis hinge, the hinge can greatly reduce the gap between the bottom surface of the hinge and the panel profile of the external box body when it is fixedly connected, ensuring the stability of the connection between the face frame and the main frame. At the same time, the off-axis hinge increases the limit angle value of the face frame opening, so that there is no need to leave a large gap between the wall-mounted advertising light box and the wall, and the face frame can be safely and fully opened. The gap value can be as low as 10 mm, which indirectly reduces the wall processing amount when installing the advertising light box. However, when in use, the assembly between the hinge and the box body is prone to fall off, and the supporting force is affected. Summary of the invention

[0007] The purpose of the present invention is to provide a large aluminum alloy advertising light box hinge that is easy to assemble, so as to solve the problems proposed in the above background technology that when the light box is repaired, it is inconvenient to quickly disassemble it, and the excessive opening and closing angle affects the overall stability of the box, and the assembly between the hinge and the box is prone to falling off, affecting the supporting force.

[0008] To achieve the above object, the present invention provides the following technical solutions: a large aluminum alloy advertising light box hinge that is easy to assemble, provided with a light box body that can be built-in with advertisements, and the light box body is composed of a surface frame and a main frame;

[0009] It comprises: a limit bar, which is installed on the inner surface of the face frame, and a nesting groove is provided in the middle and upper section of the inner surface of the face frame, and a movable hinge is connected to the edge of the inner surface of the face frame, and a through hole is provided in the middle and lower section of the inner surface of the movable hinge, and a limit bolt is connected through the inner surface of the through hole, and the left end of the outer surface of the limit bolt is connected to the inner surface of the nesting groove;

[0010] A rotating shaft is rotatably connected to the upper end of the inner surface of the movable hinge, and a positioning pin is nested and connected to the inner surface of the rotating shaft, and a positioning hinge is rotatably connected to the middle end of the outer surface of the rotating shaft, and a hook is installed on the lower surface of the positioning hinge, and the outer surface of the hook is nested and connected to the main frame;

[0011] A live bolt is threadedly connected to the lower end of the outer surface of the positioning hinge, and a limiting groove is provided on the outer surface of the live bolt;

[0012] A card plate is installed at the middle and upper end of the inner surface of the main frame, and a card strip is installed on the inner side of the outer surface of the card plate, and a built-in groove is opened at the lower end of the inner surface of the main frame. At the same time, a support is installed at the lower end of the inner surface of the main frame, and a built-in strip is nested and installed on the inner surface of the built-in groove.

[0013] The above structure forms a stable nested assembly during use, and cooperates with the positioning shaft to prevent the drawer from being misplaced and falling off, and cooperates with the snap-fit ​​structure to improve the stability of the positioning hinge.

[0014] Preferably, the limit strip is embedded and installed on the upper side of the inner surface of the face frame, and the outer surface of the limit strip is in a triangular shape. The face frame forms a nested structure with a limit through a nested groove and a limit bolt. At the same time, the limit bolt forms a nested locking structure with the movable hinge through a through hole, and the right side of the upper surface of the movable hinge fits with the left side of the outer surface of the limit strip.

[0015] The above structure forms an effective limit when in use, and cooperates with the provided nesting structure to perform limit assembly to prevent falling off.

[0016] Preferably, the movable hinge forms a built-in limiting structure through the rotating shaft and the positioning pin, and the movable hinge forms a rotating structure through the rotating shaft and the positioning hinge, and the positioning hinge and the left side of the outer surface of the hook are embedded and installed, and the positioning hinge and the main frame form a limiting nested structure through the hook.

[0017] Through the above structure, effective nesting is performed during use, and an anti-falling-off function is achieved, thereby preventing the movable hinge and the positioning hinge from falling off during use.

[0018] Preferably, a positioning block is installed at the left end of the outer surface of the positioning hinge, and an oblique support is installed at the right side of the middle end of the outer surface of the positioning hinge, and a card slot is provided in the middle section of the outer surface of the positioning hinge.

[0019] Through the above structure, stable assembly is carried out during use, which facilitates angle positioning when rotating the movable hinge, and cooperates with the diagonal brace to improve the support degree during use.

[0020] Preferably, the positioning block, the positioning hinge and the diagonal brace form an integrated structure, and the positioning hinge forms a limiting structure with the movable hinge through the positioning block.

[0021] The above structure improves the overall stability of the device during use, and cooperates with the limiting structure to effectively prevent excessive angular movement.

[0022] Preferably, the movable bolt and the positioning hinge form a threaded structure, and the upper surface of the movable bolt fits with the middle and lower sections of the inner surface of the main frame, and the limiting grooves are arranged at equal angles with respect to the central axis of the outer surface of the movable bolt.

[0023] Through the above structure, effective nesting assembly is performed during use, the stability of the device is improved, and at the same time, the threads are locked to prevent falling off during use.

[0024] Preferably, the card plate, the main frame, the card strip and the support member form an integrated structure, and the outer surface of the card plate is in a "T" shape, and the card plate forms a limiting snap-fit ​​structure through the card strip and the card slot.

[0025] The above structure improves the stability of the device during use, facilitates effective mid-end engagement, and improves the stability of the positioning hinge after assembly.

[0026] Preferably, a movable locking piece is installed on the lower surface of the built-in bar, and the inner surface of the movable locking piece is slidably connected to a slider, and a return spring is connected to the right side of the outer surface of the slider, and a limiting column is installed on the left side of the outer surface of the slider, and then a handle is installed on the lower surface of the slider, and the limiting column is snap-connected to the limiting groove.

[0027] Through the above structure, the elastic locking structure is effectively arranged during use to prevent the movable bolt from rotating autonomously and falling off.

[0028] Preferably, the movable locking member forms a nested structure for limiting through built-in strips and built-in grooves, and the movable locking member forms an elastic movable structure through a limiting column assembled with a return spring and a slider, and the limiting column forms a limiting snap-fit ​​structure through a limiting groove and a movable bolt.

[0029] The above structure can improve the overall stability during use, prevent the vibration-induced rotation and fall-off, and improve the stability of the movable bolt.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The large aluminum alloy advertising light box hinge that is easy to assemble is provided with a face frame and a main frame that are easy to cooperate with each other, and the movable hinge and the positioning hinge are assembled for opening and closing, and the rotating shaft of the movable hinge assembly is provided with a nested positioning pin to prevent the movable hinge and the positioning hinge from falling off, and cooperates with the diagonal brace and the hook of the positioning hinge assembly to improve its support stability, and cooperates with the use of the card slot and the card strip, as well as the limit column, to improve the stability of the assembled positioning hinge and the light box body;

[0032] 2. The hinge of the large aluminum alloy advertising light box that is easy to assemble is provided with a nesting groove, which is convenient for assembling the limit bolts in cooperation with the through holes provided on the mobile hinge, and the mobile hinge is nested and assembled, and the rotating shaft provided with the positioning pin is cooperated to increase the rotation stability between the mobile hinge and the positioning hinge, and prevent the face frame from falling off after multiple advertisement changes, improve the stability of the face frame support, and assemble the diagonal brace on the positioning hinge to improve the overall support;

[0033] 3. The large aluminum alloy advertising light box hinge that is easy to assemble is provided with a card slot. When assembling the positioning hinge, it is nested and moved down to engage with the card strip installed on the card plate to provide middle positioning support, and the assembled hook is nested on the inner surface of the main frame to form a bottom support, and a live bolt is threadedly connected to the bottom of the positioning hinge to position the hook to prevent the hook from falling off, and the assembly of the movable locking piece is coordinated to engage and position the moved live bolt through the limit column to prevent the live bolt from rotating and falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the three-dimensional structure of the light box body of the present invention;

[0035] Figure 2 This is a schematic diagram of a half-section three-dimensional structure of the light box body of the present invention;

[0036] Figure 3 It is a schematic diagram of a partial cross-sectional three-dimensional structure of the face frame of the present invention;

[0037] Figure 4 It is a schematic diagram of a partial cross-sectional three-dimensional structure of the main frame of the present invention;

[0038] Figure 5 This is a schematic diagram of the three-dimensional structure of the movable hinge of the present invention;

[0039] Figure 6 This is a schematic diagram of the three-dimensional structure of the positioning hinge of the present invention;

[0040] Figure 7 It is a schematic diagram of the explosion three-dimensional structure of the present invention.

[0041] In the figure: 1. light box body; 2. face frame; 3. limit strip; 4. nesting groove; 5. movable hinge; 6. through hole; 7. limit bolt; 8. rotating shaft; 9. positioning pin; 10. positioning hinge; 1001. positioning block; 1002. diagonal support; 1003. slot; 11. hook; 12. main frame; 13. movable bolt; 14. limit slot; 15. clamping plate; 16. clamping strip; 17. built-in slot; 18. support member; 19. built-in strip; 1901. movable locking member; 1902. slider; 1903. reset spring; 1904. limit column; 1905. handle. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-7 , the present invention provides a technical solution: a large aluminum alloy advertising light box hinge that is easy to assemble, provided with a light box body 1 that can be built-in with advertisements, and the light box body 1 is composed of a surface frame 2 and a main frame 12;

[0044] It includes: a limit strip 3, which is installed on the inner surface of the face frame 2, and a nesting groove 4 is opened in the middle and upper section of the inner surface of the face frame 2, and a movable hinge 5 is connected to the edge of the inner surface of the face frame 2, and a through hole 6 is opened in the middle and lower section of the inner surface of the movable hinge 5, and a limit bolt 7 is connected through the inner surface of the through hole 6, and the left end of the outer surface of the limit bolt 7 is connected to the inner surface of the nesting groove 4;

[0045] A rotating shaft 8 is rotatably connected to the upper end of the inner surface of the movable hinge 5, and a positioning pin 9 is nested and connected to the inner surface of the rotating shaft 8, and a positioning hinge 10 is rotatably connected to the middle end of the outer surface of the rotating shaft 8, and a hook 11 is installed on the lower surface of the positioning hinge 10, and then the outer surface of the hook 11 is nested and connected to the main frame 12;

[0046] The movable hinge 5 forms a built-in limiting structure through the rotating shaft 8 and the positioning pin 9, and the movable hinge 5 forms a rotating structure through the rotating shaft 8 and the positioning hinge 10, and the positioning hinge 10 and the left side of the outer surface of the hook 11 are embedded and installed, and at the same time, the positioning hinge 10 forms a limiting nested structure with the main frame 12 through the hook 11.

[0047] A positioning block 1001 is installed at the left end of the outer surface of the positioning hinge 10 , a diagonal brace 1002 is installed at the right side of the middle end of the outer surface of the positioning hinge 10 , and a card slot 1003 is provided in the middle section of the outer surface of the positioning hinge 10 .

[0048] The positioning block 1001, the positioning hinge 10 and the diagonal brace 1002 form an integrated structure, and the positioning hinge 10 forms a limiting structure with the movable hinge 5 through the positioning block 1001.

[0049] The movable bolt 13 and the positioning hinge 10 form a threaded structure, and the upper surface of the movable bolt 13 fits with the middle and lower sections of the inner surface of the main frame 12 , and the limiting groove 14 is arranged at equal angles with respect to the central axis of the outer surface of the movable bolt 13 .

[0050] When in use, the light box body 1 is composed of a set face frame 2 and a main frame 12, and a rotatable movable hinge 5 and a positioning hinge 10 are assembled between the face frame 2 and the main frame 12. When the face frame 2 is rotated to replace the advertising page, the movable hinge 5 nested in the limit bar 3 will be driven to rotate in conjunction with the use of the rotating shaft 8. When the movable hinge 5 is in use, the through hole 6 is penetrated by the limit bolt 7, and the movable hinge 5 is assembled on the outside of the nesting groove 4 set in the face frame 2, and the top of the movable hinge 5 is limited by the limit bar 3 to prevent the top from being stretched and damaged. When the movable hinge 5 rotates, the positioning pin 9 nested and assembled through the rotating shaft 8 can prevent the rotating shaft 8 from falling off, and rotate on the outer surface of the positioning hinge 10, thereby improving the stability during use and reducing damage and falling off on one side of the movable hinge 5.

[0051] The card plate 15 is installed at the middle upper end of the inner surface of the main frame 12, and a card strip 16 is installed on the inner side of the outer surface of the card plate 15, and a built-in groove 17 is opened at the lower end of the inner surface of the main frame 12. At the same time, a support member 18 is installed at the lower end of the inner surface of the main frame 12, and a built-in strip 19 is nested and installed on the inner surface of the built-in groove 17.

[0052] The limit strip 3 is embedded and installed on the upper side of the inner surface of the face frame 2, and the outer surface of the limit strip 3 is in a triangular structure. The face frame 2 forms a limited nesting structure with the limit bolt 7 through the nesting groove 4. At the same time, the limit bolt 7 forms a penetrating nesting locking structure with the movable hinge 5 through the through hole 6, and the right side of the upper surface of the movable hinge 5 is in contact with the left side of the outer surface of the limit strip 3.

[0053] The card plate 15 forms an integrated structure with the main frame 12 , the card strip 16 and the support member 18 , and the outer surface of the card plate 15 is in a “T” shape. The card plate 15 forms a position-limiting card structure with the card slot 1003 through the card strip 16 .

[0054] A movable locking piece 1901 is installed on the lower surface of the built-in strip 19, and the inner surface of the movable locking piece 1901 is slidably connected to a slider 1902, and a return spring 1903 is connected to the right side of the outer surface of the slider 1902. At the same time, a limiting column 1904 is installed on the left side of the outer surface of the slider 1902, and a handle 1905 is installed on the lower surface of the slider 1902, and the limiting column 1904 is snap-connected to the limiting groove 14.

[0055] The movable locking member 1901 forms a nested structure for limiting through the built-in strip 19 and the built-in groove 17, and the movable locking member 1901 forms an elastic moving structure through the limiting column 1904 assembled with the slider 1902 through the return spring 1903, and the limiting column 1904 forms a limiting snap-fit ​​structure through the limiting groove 14 and the movable bolt 13.

[0056] When the movable hinge 5 rotates with the positioning hinge 10 through the rotating shaft 8, the positioning hinge 10 is nested in the inner side of the main frame 12 through the assembled hook 11 to form a limited nesting, and cooperates with the provided movable bolt 13 to squeeze and lock the hook 11 to prevent the hook 11 from falling off, and cooperates with the inclined support 1002 installed with the positioning hinge 10 to improve the stability of the overall positioning hinge 10, and the middle end of the positioning hinge 10 cooperates with the provided slot 1003 to engage with the card strip 16 installed on the side of the card plate 15 assembled with the main frame 12 to prevent the positioning hinge 10 from falling off during use, improve the stability of the movable hinge 5 when driving the face frame 2 to rotate, and after the movable bolt 13 is locked, it needs to be locked through the provided limit slot 14 The limit column 1904 installed on the slider 1902 squeezed by the return spring 1903 is engaged to improve the stability of the movable bolt 13 after being locked, and the slider 1902 is limited and moved inside the movable locking member 1901, and the built-in bar 19 assembled through the movable locking member 1901 is nested with the built-in groove 17 to adjust the use position of the movable locking member 1901, and the support member 18 nested on the right side of the movable locking member 1901 improves the stability of the movable locking member 1901 during operation, and cooperates with the handle 1905 installed on the slider 1902, when the movable hinge 5 and the positioning hinge 10 are damaged in the later stage, they can be unlocked and limited for replacement, thereby improving the overall stability and anti-falling property.

[0057] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large aluminum alloy advertising light box hinge that is easy to assemble, provided with a light box body (1) that can be built-in with advertisements, and the light box body (1) is composed of a surface frame (2) and a main frame (12); It is characterized in that include: A limit strip (3) is mounted on the inner surface of the face frame (2), and a nesting groove (4) is provided in the middle and upper section of the inner surface of the face frame (2), and a movable hinge (5) is connected to the edge of the inner surface of the face frame (2), and a through hole (6) is provided in the middle and lower section of the inner surface of the movable hinge (5), and a limit bolt (7) is connected through the inner surface of the through hole (6), and the left end of the outer surface of the limit bolt (7) is connected to the inner surface of the nesting groove (4); A rotating shaft (8) is rotatably connected to the upper end of the inner surface of the movable hinge (5), and a positioning pin (9) is nested and connected to the inner surface of the rotating shaft (8), and a positioning hinge (10) is rotatably connected to the middle end of the outer surface of the rotating shaft (8), and a hook (11) is installed on the lower surface of the positioning hinge (10), and the outer surface of the hook (11) is nested and connected to the main frame (12); A movable bolt (13) is threadedly connected to the lower end of the outer surface of the positioning hinge (10), and a limiting groove (14) is provided on the outer surface of the movable bolt (13); A card plate (15) is installed at the middle upper end of the inner surface of the main frame (12), and a card strip (16) is installed on the inner side of the outer surface of the card plate (15), and a built-in groove (17) is opened at the lower end of the inner surface of the main frame (12), and a support member (18) is installed at the lower end of the inner surface of the main frame (12), and a built-in strip (19) is nested and installed on the inner surface of the built-in groove (17).

2. According to claim 1, a conveniently assembled large aluminum alloy advertising light box hinge is characterized by: The limiting strip (3) is embedded and installed on the upper side of the inner surface of the face frame (2), and the outer surface of the limiting strip (3) is in a triangular shape. The face frame (2) forms a limiting nesting structure with the limiting bolt (7) through the nesting groove (4), and the limiting bolt (7) forms a through-penetrating nesting locking structure with the movable hinge (5) through the through hole (6), and the right side of the upper surface of the movable hinge (5) is in contact with the left side of the outer surface of the limiting strip (3).

3. The conveniently assembled large aluminum alloy advertising light box hinge according to claim 1 is characterized by: The movable hinge (5) forms a built-in limiting structure through the rotating shaft (8) and the positioning pin (9), and the movable hinge (5) forms a rotating structure through the rotating shaft (8) and the positioning hinge (10), and the positioning hinge (10) and the left side of the outer surface of the hook (11) are embedded and installed, and the positioning hinge (10) and the main frame (12) form a limiting nesting structure through the hook (11).

4. The large aluminum alloy advertising light box hinge that is easy to assemble according to claim 1 is characterized by: A positioning block (1001) is installed at the left end of the outer surface of the positioning hinge (10), and a diagonal brace (1002) is installed at the right side of the middle end of the outer surface of the positioning hinge (10), and a card slot (1003) is provided in the middle section of the outer surface of the positioning hinge (10).

5. The conveniently assembled large aluminum alloy advertising light box hinge according to claim 4 is characterized by: The positioning block (1001) forms an integrated structure with the positioning hinge (10) and the diagonal brace (1002), and the positioning hinge (10) forms a limiting structure with the movable hinge (5) through the positioning block (1001).

6. The large aluminum alloy advertising light box hinge that is easy to assemble according to claim 1 is characterized by: The movable bolt (13) and the positioning hinge (10) form a threaded structure, and the upper surface of the movable bolt (13) fits the middle and lower sections of the inner surface of the main frame (12), and the limiting groove (14) is arranged at equal angles with respect to the central axis of the outer surface of the movable bolt (13).

7. The large aluminum alloy advertising light box hinge that is easy to assemble according to claim 1 is characterized by: The card plate (15) forms an integrated structure with the main frame (12), the card strip (16) and the support member (18); the outer surface of the card plate (15) is in a "T"-shaped structure; and the card plate (15) forms a position-limiting card-fitting structure with the card strip (16) and the card slot (1003).

8. The large aluminum alloy advertising light box hinge that is easy to assemble according to claim 1 is characterized by: A movable locking member (1901) is installed on the lower surface of the built-in strip (19), and a slider (1902) is slidably connected to the inner surface of the movable locking member (1901), and a return spring (1903) is connected to the right side of the outer surface of the slider (1902), and a limiting column (1904) is installed on the left side of the outer surface of the slider (1902), and a handle (1905) is installed on the lower surface of the slider (1902), and the limiting column (1904) is snap-connected to the limiting groove (14).

9. The conveniently assembled large aluminum alloy advertising light box hinge according to claim 8 is characterized by: The movable locking member (1901) forms a nested structure for limiting positioning through the built-in strip (19) and the built-in groove (17), and the movable locking member (1901) forms an elastic movable structure through a limiting column (1904) assembled with a return spring (1903) and a slider (1902), and the limiting column (1904) forms a limiting engaging structure through the limiting groove (14) and the movable bolt (13).

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