Double right-angle folding box

Abstract

The present invention discloses a double right-angle folding box, which comprises a first main body, a first bridge base, a movable block, a second main body, a first rotating shaft member, a second rotating shaft member, an elastic latch mechanism and a safety device; the first bridge base is slidably connected to the inside of the first main body, the first rotating shaft member is slidably installed inside the first bridge base, one end of the movable block is rotatably connected to the first rotating shaft member, the second rotating shaft member is arranged inside the second main body and movably assembled inside the movable block, and the elastic latch mechanism is slidably arranged inside the movable block and located between the first rotating shaft member and the second rotating shaft member; when shrinking and pressing, the elastic latch mechanism can be inserted into the first rotating shaft member under the pushing of the second rotating shaft member. The present invention adopts a multi-section double right-angle folding structure, which can completely fold the vehicle 180 degrees without interference, making the folded vehicle more regular and stable, and having higher internal strength and being more stable during normal use.

Description

Technical Field

[0001] The invention relates to the technical field of folding devices for folding vehicles, and in particular to a double right-angle folding box. Background Art

[0002] At present, in the existing folding bicycle industry, folding bicycles generally achieve the folding function through a middle folding device, which is called a folding box in the art. Most folding boxes are folded in half, and the front and rear ends of the folding box are fixedly mounted on the front and rear of the frame respectively.

[0003] The existing folding box has a single folding method, which is just folding in half. The single-hinge folding box cannot fold the bicycle completely 180 degrees. Therefore, the bicycle is irregular, unstable and easy to shake after folding, which makes it inconvenient to store and takes up space, and even accidentally damages the bicycle. At the same time, compared with ordinary non-folding bicycles, the folding part is easy to break, loose and has low fatigue resistance, resulting in insufficient strength of the segmented frame, which is not conducive to the stability and service life of the folding bicycle. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a double right-angle folding box, which adopts a multi-stage double right-angle folding structure, can completely fold a vehicle 180 degrees without interference, making the folded vehicle more regular and stable, and the internal strength is higher and more stable during normal use.

[0005] In order to solve the above technical problems, the technical solution of the present invention is:

[0006] A double right-angle folding box, comprising a first main body, a first bridge seat, a movable block, a second main body, a first rotating shaft component, a second rotating shaft component, an elastic latch mechanism and a safety device;

[0007] The first bridge seat is slidably connected to the inside of the first body, the first shaft member is slidably installed inside the first bridge seat, one end of the movable block is rotatably connected to the first shaft member, the second shaft member is arranged inside the second body and movably assembled in the movable block, the elastic latch mechanism is slidably arranged in the movable block and is located between the first shaft member and the second shaft member, and the safety device is installed on the first body and the second body;

[0008] When the systolic pressure is applied, the first bridge base can slide and contract inside the first main body, the movable block can slide and contract inside the first bridge base, the second main body can push the elastic latch mechanism through the second rotating shaft member and make itself semi-contract inside the first main body, and the elastic latch mechanism can be inserted into the first rotating shaft member under the push of the second rotating shaft member, and the safety device can fasten and lock the whole;

[0009] When folding, the second main body and the second rotating shaft member can move back and extend under the action of the elastic latch mechanism, and the elastic latch mechanism can be disengaged from the insertion with the first rotating shaft member. The movable block can be turned 90 degrees after the first bridge base and the first rotating shaft member slide and extend, and the second main body and the second rotating shaft member can also be turned 90 degrees.

[0010] Further, a strip-shaped sliding hole is vertically penetrated through the movable block, a baffle is arranged in the strip-shaped sliding hole, and the second rotating shaft member is movably assembled in the strip-shaped sliding hole;

[0011] The elastic latch mechanism includes a plug rod slidably penetrating through the baffle and the end wall of the movable block, a pushing block arranged at one end of the plug rod close to the second rotating shaft member, and a spring arranged between the pushing block and the baffle and sleeved on the plug rod;

[0012] The plug rod penetrates through the end wall of the movable block and is inserted into the first rotating shaft member in the locked and pressed state, and the plug rod is inserted into the end wall of the movable block and disengaged from the first rotating shaft member in the extended and folded state.

[0013] Further, guide sliding grooves are also opened on both sides of the inner wall of the strip-shaped sliding hole, and both sides of the pushing block are slidably clamped in the guide sliding grooves on both sides.

[0014] Further, the second rotating shaft member includes a second rotating shaft arranged inside the second main body and movably penetrating through the strip-shaped sliding hole, and an arc-shaped flange formed on the side wall of the second rotating shaft;

[0015] Both ends of the plug rod are formed into hemispherical shapes, a limiting arc-shaped groove adapted to the arc-shaped flange is opened on the inner wall of one end of the strip-shaped sliding hole close to the second main body, the second rotating shaft member can be rotated 90 degrees when it moves back and extends to the position of the limiting arc-shaped groove, and the second rotating shaft can slide in the strip-shaped sliding hole and push the plug rod through the arc-shaped flange.

[0016] Further, second sliding grooves are opened on both the upper and lower inner walls of the first bridge base. The first rotating shaft member includes a first rotating shaft and second sliding blocks arranged at both the upper and lower ends of the first rotating shaft. The second sliding blocks are slidably clamped in the second sliding grooves. One end of the movable block is rotatably connected to the first rotating shaft, and a jack suitable for the plug rod to penetrate through is also opened on the first rotating shaft.

[0017] Furthermore, first sliding blocks are provided at both upper and lower ends of the first bridge seat, and first sliding grooves are provided on upper and lower inner walls of the first main body, and the first sliding blocks are slidably engaged in the first sliding grooves.

[0018] Furthermore, one side of the second main body has a second bridge seat having the same shape as the first bridge seat, the second rotating shaft component is arranged inside the second bridge seat, and the second bridge seat is retracted inside the first main body in a locked and pressed state.

[0019] Furthermore, a limiting guide rail is provided on the inner wall of one side of the first main body, and a guide notch is provided on the same side of the first bridge seat and the second bridge seat, and the guide notch can be slidably engaged with the limiting guide rail when shrinking and pressing.

[0020] Furthermore, positioning posts are provided on the inner walls of the bottom sides of the first bridge seat and the second bridge seat, and a positioning slot adapted for the positioning posts is provided at the bottom of the movable block, and the positioning posts can be slidably engaged in the positioning slot when contracted and pressed.

[0021] Furthermore, the safety device includes a safety body rotatably mounted on the second body, a spring tongue elastically mounted on the safety body, a sliding button slidably mounted on the safety body and used to move the spring tongue, and a locking tongue arranged on the first body, and the spring tongue and the locking tongue form a snap connection when locked.

[0022] By adopting the above technical solution, the present invention has the following beneficial effects:

[0023] 1. The present invention realizes the effect of double right-angle folding of a multi-section structure through the combined assembly of the first main body, the first bridge seat, the first rotating shaft component, the movable block, the second rotating shaft component and the second main body. Specifically, through the sliding connection between the first bridge seat and the first main body, the sliding connection between the first rotating shaft component and the first bridge seat, the rotating connection between the movable block and the first rotating shaft component, and the movable connection between the second main body and the second rotating shaft component as a whole and the movable block, the present invention can achieve the effect of double right-angle folding, that is, a complete folding of 180 degrees, and through the sliding cooperation between the various components, the vehicle can be stretched and extended before being folded, so there will be no interference or restriction problems, thereby making the folded vehicle more regular and stable, more convenient to store without taking up too much space, more stable and less prone to shaking when placed, and reducing the possibility of vehicle damage.

[0024] 2. Through the sliding fit between components, as well as the design of the elastic bolt mechanism and the safety device, when the whole is shrunk and pressed together, the elastic bolt mechanism can be inserted into the first rotating shaft component, and each component can be shrunk and pressed into one body. At the same time, the safety device can lock the whole, so that the present invention is more firm, stable and has higher strength during normal use, further enhancing the overall connection strength of the front and rear vehicle frames, which is beneficial to ensuring the stability of vehicle riding and extending the service life of the vehicle.

[0025] 3. Through the return action of the spring on the elastic bolt mechanism, it can form a pushing effect on the second rotating shaft component. Coupled with the design of the arc-shaped flange and the limiting arc-shaped groove, the second main body and the second rotating shaft component can be limited and held after rotating 90 degrees, which is beneficial to the stability of the vehicle after folding and avoids excessive shaking.

[0026] 4. Through the cooperation of the limiting guide rail and the guiding notch, and the cooperation of the positioning sliding groove and the positioning clamping column, each component can be more easily fitted in place during folding and shrinking and pressing together. At the same time, it can enhance the strength after the whole is locked and pressed together and avoid loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional structural schematic diagram of the present invention in the locked and pressed state;

[0028] Figure 2 is Figure 1 a schematic diagram of the other perspective of the structure in

[0029] Figure 3 is Figure 1 a schematic sectional view of the structure in

[0030] Figure 4 is a three-dimensional structural schematic diagram of the present invention in the stretched and opened state;

[0031] Figure 5 is Figure 4 a schematic diagram of the other perspective of the structure in

[0032] Figure 6 is Figure 4 a schematic sectional view of the structure in

[0033] Figure 7 is a three-dimensional structural schematic diagram of the present invention in the state of being folded 90 degrees at a time;

[0034] Figure 8 is Figure 7 a schematic diagram of the other perspective of the structure in

[0035] Figure 9 is Figure 7 a schematic sectional view of the structure in

[0036] Figure 10 This is a three-dimensional structure schematic diagram of the present invention in a fully folded state of 180 degrees;

[0037] Figure 11 is Figure 10 a schematic diagram of the other side view of the structure in;

[0038] Figure 12 is Figure 10 a schematic cross-sectional view of the structure in the top-down perspective in;

[0039] Figure 13 This is a schematic diagram of the structure of the first main body of the present invention;

[0040] Figure 14 This is a schematic diagram of the structure of the first bridge seat and the first rotating shaft member of the present invention;

[0041] Figure 15 This is a schematic diagram of the structure of the movable block of the present invention;

[0042] Figure 16 This is a schematic diagram of the top-side view structure of the movable block of the present invention;

[0043] Figure 17 This is a schematic diagram of the structure of the second main body and the second rotating shaft member of the present invention;

[0044] Figure 18 is Figure 4 a position relationship diagram of the first rotating shaft member, the second rotating shaft member, and the elastic plug mechanism in the state of;

[0045] Figure 19 is Figure 10 a position relationship diagram of the first rotating shaft member, the second rotating shaft member, and the elastic plug mechanism in the state of;

[0046] Among them, 1. First main body; 10. First sliding groove; 11. Limit guide rail; 2. First bridge seat; 20. Second sliding groove; 21. First slider; 3. Movable block; 30. Strip-shaped sliding hole; 300. Guide sliding groove; 301. Limit arc-shaped groove; 31. Baffle; 32. Positioning sliding groove; 4. Second main body; 40. Second bridge seat; 400. Guide notch; 401. Positioning clamping column; 5. First rotating shaft member; 50. First rotating shaft; 500. Insertion hole; 51. Second slider; 6. Second rotating shaft member; 60. Second rotating shaft; 61. Arc-shaped flange; 7. Elastic plug mechanism; 70. Plug rod; 71. Pushing block; 72. Spring; 8. Safety device; 80. Safety body; 81. Spring tongue; 82. Slide button; 83. Lock tongue. Detailed implementation manners

[0047] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0048] like Figures 1-19 As shown, in this embodiment, a double right-angle folding box is provided, which is mainly composed of a first body 1, a first bridge seat 2, a movable block 3, a second body 4, a first rotating shaft member 5, a second rotating shaft member 6, an elastic latch mechanism 7 and a safety device 8. When in use, the first body 1 is generally connected to the front of the frame, and the second body 4 is connected to the rear of the frame. The first bridge seat 2 is slidably connected to the first main body 1, and the first bridge seat 2 can be slidably retracted in the first main body 1, or can be slidably half-extended outside the first main body 1; the first rotating shaft component 5 is slidably installed on the inner side of the first bridge seat 2; one end of the movable block 3 is rotatably sleeved on the first rotating shaft component 5, that is, the movable block 3 can be slidably half-retracted in the first bridge seat 2 by the first rotating shaft component 5, and can also be rotated 90 degrees and folded after the first bridge seat 2 and the first rotating shaft component 5 are pulled out. Of course, the edge of the first main body 1 can be close to the side of the movable block 3 after the movable block 3 rotates 90 degrees, so as to form a certain limit to prevent excessive rotation; the second rotating shaft component 6 is fixedly installed on the inner side of the second main body 4 and movably assembled in the movable block 3, that is, the second main body 4 and the second rotating shaft component 6 form a whole and can slide along the movable block 3, and at the same time, the second main body 4 and the second rotating shaft component 6 can also be rotated 90 degrees relative to the movable block 3. After the movable block 3 itself rotates 90 degrees, a 180-degree folding effect is formed together. In addition, the elastic latch mechanism 7 is slidably arranged in the movable block 3 and is located between the first rotating shaft component 5 and the second rotating shaft component 6, and the safety device 8 is installed on the first main body 1 and the second main body 4; the function of the elastic latch mechanism 7 is that the elastic latch mechanism 7 can be inserted into the first rotating shaft component 5 under the sliding push of the second rotating shaft component 6 during contraction and pressing, and the elastic latch mechanism 7 can push the second rotating shaft component 6 and the second main body 4 to move back and stretch by relying on its own rebound action during unfolding and folding, and disengage itself from the first rotating shaft component 5, so that the movable block 3 can be folded smoothly; the function of the safety device 8 is to tighten and lock the whole after contraction and pressing, so as to facilitate the normal use of the vehicle, and the safety device 8 can be opened when folding is required.

[0049] Specifically, a strip-shaped sliding hole 30 is vertically formed through the movable block 3 in this embodiment. A baffle 31 is fixedly arranged in the strip-shaped sliding hole 30, and the second rotating shaft member 6 is movably assembled in the strip-shaped sliding hole 30. The elastic latch mechanism 7 is specifically composed of a latch rod 70, a pushing block 71, and a spring 72. The latch rod 70 slidably penetrates through the baffle 31 and the end wall of the movable block 3. The pushing block 71 is arranged at one end of the latch rod 70 close to the second rotating shaft member 6. The spring 72 is arranged between the pushing block 71 and the baffle 31 and sleeved on the latch rod 70. The spring 72 is in an elastic state between the pushing block 71 and the baffle 31. At the same time, when in the locked and pressed state, the latch rod 70 passes through the end wall of the movable block 3 and penetrates into the first rotating shaft member 5. When in the extended and folded state, one end of the latch rod 70 is inserted into the end wall of the movable block 3 and disengaged from the first rotating shaft member 5.

[0050] Specifically, in order to improve the structural stability during locking and pressing, a second bridge seat 40 having the same shape as the first bridge seat 2 is formed on one side of the second main body 4 in this embodiment. The second rotating shaft member 6 is fixedly installed inside the second bridge seat 40. The second bridge seat 40 can also contract inside the first main body 1 in the locked and pressed state and is sleeved on the outside of the movable block 3 like the first bridge seat 2.

[0051] Reference Figures 1-19 The detailed principle is described as follows: This embodiment is in the locked and pressed state during normal use of the vehicle, that is, Figures 1-3 the state shown in the figure. In this state, the first bridge seat 2 slides to the foremost end and contracts inside the first main body 1. The first rotating shaft member 5 slides to the foremost end and the movable block 3 is semi-contracted inside the first bridge seat 2. The second bridge seat 40 on the second main body 4 contracts inside the first main body 1 and is sleeved on the outside of the movable block 3. The second rotating shaft member 6 slides to the middle of the strip-shaped sliding hole 30 and pushes the latch rod 70 to pass through the end wall of the movable block 3 and penetrate into the first rotating shaft member 5. The spring 72 is in a compressed state under the pressing of the pushing block 71 and the baffle 31. The safety device 8 locks the first main body 1 and the second main body 4, thereby making the overall structure firmly locked. Through the above design, each component can be firmly integrated into one body, making this embodiment more firm, stable, and higher in strength during normal use, further enhancing the overall connection strength of the front and rear frames, which is beneficial to ensuring the stability of vehicle riding and extending the service life of the vehicle.

[0052] When this embodiment is fully folded at 180 degrees, it needs to go through two states first, that is, Figures 4-6 the fully extended and pulled-open state shown in the figure, and Figures 7-9 the state where the movable block is folded at 90 degrees shown in the figure. From Figures 1-3 the locked and pressed state shown in the figure to Figures 4-6In the state shown, only the safety device 8 needs to be opened. The spring 72 will first rebound and push the plug rod 70 to disengage it from the insertion connection with the first rotating shaft member 5. At the same time, the plug rod 70 will push the second rotating shaft member 6 and the second main body 4 back to the rear position of the strip-shaped sliding hole 30. Then, slide backward to pull out the movable block 3 and the first bridge base 2 respectively, so that the whole is in a fully extended and pulled-open state. At this time, the relative position relationship between the plug rod 70 and the first rotating shaft member 5 and the second rotating shaft member 6 can be referred to Figure 18 as shown. From Figures 4-6 the state shown to Figures 7-9 the state shown, only the movable block 3 needs to be rotated 90 degrees around the first rotating shaft member 5. Finally, rotate the whole of the second main body 4 and the second rotating shaft member 6 relative to the movable block 3 by another 90 degrees, and 180-degree complete folding can be achieved, that is, corresponding to Figures 10-12 the state shown. At this time, the relative position relationship between the plug rod 70 and the first rotating shaft member 5 and the second rotating shaft member 6 can be referred to Figure 19 as shown. Through the above design, this embodiment can achieve the effect of double right-angle folding, that is, 180-degree complete folding, without interference. Furthermore, the vehicle can be completely folded at 180 degrees, making the folded vehicle more regular and stable, more convenient for storage without occupying too much space, and more stable and less likely to shake when placed, reducing the possibility of vehicle damage.

[0053] In order to improve the stability of the movement of the plug rod 70 and ensure the straightness of its insertion connection, guide sliding grooves 300 are also formed on both sides of the inner wall of the strip-shaped sliding hole 30 in this embodiment, and both sides of the pushing block 71 are slidably clamped in the guide sliding grooves 300 on both sides.

[0054] Specifically, the second rotating shaft member 6 in this embodiment includes a second rotating shaft 60 fixedly provided inside the second bridge base 40 and movably passing through the strip-shaped sliding hole 30. An arc-shaped flange 61 is formed on the side wall of the middle part of the second rotating shaft 60. At the same time, a limiting arc-shaped groove 301 adapted to the arc-shaped flange 61 is formed on the inner wall of one end of the strip-shaped sliding hole 30 close to the second main body 4. The limiting arc-shaped groove 301 can limit the rotation angle of the arc-shaped flange 61 to 90 degrees, thereby preventing excessive rotation of the second rotating shaft 60. Coupled with the elastic action of the spring 72, which can form a pushing effect on the second rotating shaft member 6, the second main body 4 and the second rotating shaft member 6 can be limited and held after rotating to 90 degrees, which is beneficial to the stability of the folded vehicle and avoids excessive shaking. In addition, in order to reduce the friction and resistance between the arc-shaped flange 61 and the plug rod 70 during rotation, both ends of the plug rod 70 are formed into hemispherical shapes.

[0055] Specifically, in order to ensure the stability and straightness of the sliding of the first rotating shaft member 5, second sliding grooves 20 are formed in both the upper and lower inner walls of the first bridge base 2 in this embodiment. The first rotating shaft member 5 specifically includes a first rotating shaft 50 and second sliding blocks 51 provided at both the upper and lower ends of the first rotating shaft 50. The second sliding blocks 51 are slidably clamped in the second sliding grooves 20. One end of the movable block 3 is rotatably sleeved on the first rotating shaft 50. At the same time, a jack 500 adapted for the insertion rod 70 to pass through is formed on the first rotating shaft 50.

[0056] In order to ensure the stability and straightness of the sliding of the first bridge base 2, first sliding blocks 21 are provided at both the upper and lower ends of the first bridge base 2 in this embodiment. First sliding grooves 10 are formed in both the upper and lower inner walls of the first main body 1, and the first sliding blocks 21 are slidably clamped in the first sliding grooves 10.

[0057] In order to enhance the strength after the overall locking and pressing and avoid loosening, a limiting guide rail 11 is provided on one inner wall of the first main body 1 in this embodiment. Guide notches 400 are formed on the same side of the first bridge base 2 and the second bridge base 40. When contracting and pressing, the guide notches 400 can be slidably clamped on the limiting guide rail 11, thereby improving the stability after the pressing is in place. At the same time, positioning clamping columns 401 are provided on the bottom inner walls of the first bridge base 2 and the second bridge base 40. A positioning sliding groove 32 adapted for the positioning clamping column 401 is formed at the bottom of the movable block 3. When contracting and pressing, the positioning clamping column 401 can be slidably clamped in the positioning sliding groove 32. The positioning sliding groove 32 and the positioning clamping column 401 can play a role in positioning and guiding, facilitating the rapid contraction in place from folding to contracting and pressing, and can also enhance the strength after the overall locking and pressing and improve the stability.

[0058] Specifically, in order to achieve a more firm locking effect, the safety device 8 in this embodiment further includes a safety body 80 rotatably installed on the second main body 4, a spring tongue 81 elastically installed on the safety body 80, a sliding button 82 slidably installed on the safety body 80 and used to toggle the spring tongue 81, and a locking tongue 83 provided on the first main body 1. When in the state of contracting and pressing, rotating the safety body 80 can make the spring tongue 81 and the locking tongue 83 form a clamping lock. When folding is required, pushing the sliding button 82 can make the spring tongue 81 and the locking tongue 83 separate, and then rotating and opening the safety body 80 to complete the release.

[0059] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0060] In the above specific embodiments, the technical problems solved by the present invention, the technical solutions and the beneficial effects have been further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A double right-angle folding box, characterized in that: It includes a first main body (1), a first bridge base (2), a movable block (3), a second main body (4), a first rotating shaft member (5), a second rotating shaft member (6), an elastic latch mechanism (7), and a safety device (8); The first bridge base (2) is slidably connected inside the first main body (1), the first rotating shaft member (5) is slidably installed inside the first bridge base (2), one end of the movable block (3) is rotatably connected to the first rotating shaft member (5), the second rotating shaft member (6) is arranged inside the second main body (4) and is movably assembled inside the movable block (3), the elastic latch mechanism (7) is slidably arranged inside the movable block (3) and is located between the first rotating shaft member (5) and the second rotating shaft member (6), and the safety device (8) is installed on the first main body (1) and the second main body (4); During shrinkage and pressing, the first bridge base (2) can slide and contract inside the first main body (1), the movable block (3) can slide and contract inside the first bridge base (2), the second main body (4) can push and press the elastic latch mechanism (7) through the second rotating shaft member (6) and make itself semi - contract inside the first main body (1), and the elastic latch mechanism (7) can be inserted into the first rotating shaft member (5) under the push of the second rotating shaft member (6), and the safety device (8) can tightly lock the whole; During folding, the second main body (4) and the second rotating shaft member (6) can move back and extend under the action of the elastic latch mechanism (7), and the elastic latch mechanism (7) can be disengaged from the insertion with the first rotating shaft member (5), the movable block (3) can be flipped 90 degrees after the first bridge base (2) and the first rotating shaft member (5) slide and extend, and the second main body (4) and the second rotating shaft member (6) can also be flipped 90 degrees.

2. The double right-angle folding box according to claim 1, wherein: The movable block (3) is provided with a strip - shaped sliding hole (30) penetrating up and down, a baffle (31) is arranged inside the strip - shaped sliding hole (30), and the second rotating shaft member (6) is movably assembled inside the strip - shaped sliding hole (30); The elastic latch mechanism (7) includes a plug rod (70) slidably penetrating through the baffle (31) and the end wall of the movable block (3), a pushing block (71) arranged at one end of the plug rod (70) close to the second rotating shaft member (6), and a spring (72) arranged between the pushing block (71) and the baffle (31) and sleeved on the plug rod (70); The plug rod (70) penetrates through the end wall of the movable block (3) and is inserted into the first rotating shaft member (5) in the locked and pressed state, and the plug rod (70) is inserted into the end wall of the movable block (3) and is disengaged from the first rotating shaft member (5) in the extended and folded state.

3. The double right-angle folding box according to claim 2, characterized in that: Guide chutes (300) are also opened on both sides of the inner wall of the strip - shaped sliding hole (30), and both sides of the pushing block (71) are slidably clamped in the guide chutes (300) on both sides.

4. The double right-angle folding box according to claim 2, wherein: The second rotating shaft member (6) includes a second rotating shaft (60) arranged inside the second main body (4) and movably penetrating through the strip - shaped sliding hole (30), and an arc - shaped flange (61) formed on the side wall of the second rotating shaft (60); Both ends of the insertion rod (70) are formed into a hemispherical shape. A limiting arc groove (301) adapted to the arc flange (61) is provided on the inner wall of one end of the strip sliding hole (30) close to the second main body (4). The second rotating shaft component (6) can rotate ninety degrees when it moves back and extends to the position of the limiting arc groove (301). The second rotating shaft (60) can slide in the strip sliding hole (30) and push the insertion rod (70) through the arc flange (61).

5. The double right-angle folding box according to claim 2, wherein: The upper and lower inner walls of the first bridge seat (2) are both provided with second slide grooves (20), the first rotating shaft component (5) comprises a first rotating shaft (50) and second sliders (51) arranged at the upper and lower ends of the first rotating shaft (50), the second slider (51) is slidably engaged in the second slide groove (20), one end of the movable block (3) is rotatably connected to the first rotating shaft (50), and the first rotating shaft (50) is also provided with a socket (500) suitable for the insertion of the insertion rod (70).

6. The double right-angle folding box according to claim 1, wherein: The first bridge seat (2) is provided with first sliding blocks (21) at both upper and lower ends, the first main body (1) is provided with first sliding grooves (10) on upper and lower inner walls, and the first sliding blocks (21) are slidably engaged in the first sliding grooves (10).

7. The double right-angle folding box according to claim 1, characterized in that: One side of the second main body (4) has a second bridge seat (40) of the same shape as the first bridge seat (2); the second rotating shaft component (6) is arranged inside the second bridge seat (40); and the second bridge seat (40) is retracted inside the first main body (1) in a locked and pressed state.

8. The double right-angle folding box according to claim 7, wherein: A limiting guide rail (11) is provided on the inner wall of one side of the first main body (1), and a guide notch (400) is provided on the same side of the first bridge seat (2) and the second bridge seat (40), and the guide notch (400) can be slidably engaged with the limiting guide rail (11) when contracted and pressed.

9. The double right-angled folding box according to claim 7, wherein: The first bridge seat (2) and the second bridge seat (40) are both provided with positioning posts (401) on their bottom inner walls, and the bottom of the movable block (3) is provided with a positioning slot (32) adapted to the positioning post (401), and the positioning post (401) can be slidably engaged in the positioning slot (32) when contracted and pressed.

10. The double right-angle folding box according to claim 1, wherein: The safety device (8) comprises a safety body (80) rotatably mounted on the second body (4), a spring tongue (81) elastically mounted on the safety body (80), a sliding button (82) slidably mounted on the safety body (80) and used to move the spring tongue (81), and a locking tongue (83) arranged on the first body (1); the spring tongue (81) and the locking tongue (83) form a snap connection when locked.

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