Right-angle plug-in structure between plates

Abstract

The utility model discloses a right-angle inserting structure between plates. The connecting structure comprises a first plate piece 1 and a second plate piece 2 which are connected with each other in a right-angle mode, a plate edge positioning inserting plate 12, with an inserting plate arch ridge 121, of the first plate piece 1 is inserted into a plate face positioning inserting hole 21, provided with an outwards-concave inserting hole guiding area 211, of the second plate piece 12, and a plate edge bolt and nut connecting notch 11 of the first plate piece 1 is aligned with a bolt mounting hole 22 of the second plate piece 2. And the bolt 3 and the nut 4 are locked in the bolt mounting hole 22 of the second plate 2 and the plate edge bolt and nut connecting notch 11 of the first plate 1 to form two directly connected plates. After the characteristics of the plugboard arch ridge 121 and the jack guide area 211 are adopted, the addressing alignment difficulty between board holes in the right-angle plugging operation between boards is obviously improved, and the working efficiency is improved.

Description

Technical Field

[0001] This invention pertains to connection structures for connecting components together, and particularly relates to connection structures for inserting plates together at right angles. Background Technology

[0002] See appendix Figure 32 In the published patent application CN117847059A, a new right-angle insertion structure between plates is proposed. The implementation is as follows: In two plates that need to be connected at a right angle, a bolt and nut connection notch 11 and a positioning plate 12 are provided on the edge of one plate, and corresponding positioning holes 21 and bolt holes 22 are arranged at predetermined positions on the surface of the other plate. During assembly, simply insert the positioning plate 12 of one plate into the corresponding positioning hole 21 of the other plate, and then use matching bolts and nuts to lock them together at the bolt and nut connection notch 11. This allows the two plates to be firmly joined at a right angle into a detachable integral component.

[0003] With the availability of widely used laser cutting equipment for sheet metal, the above technology can indeed be easily implemented in various sheet metal connection processes.

[0004] However, after practical testing, the above solution was found to have the following problems:

[0005] While laser cutting can precisely cut the shape and outline of the edge positioning inserts 12 and matching surface positioning holes when the sheet metal thickness is moderate, if multiple edge positioning inserts 12 with large gaps need to be set on the long side of the sheet, and the shape accuracy is very high, it becomes difficult to manually insert multiple edge positioning inserts 12 into their corresponding surface positioning holes 21 one by one due to deformation of the sheet metal edges caused by various factors. This is especially true when combining numerous edge positioning inserts 12 and numerous surface positioning holes 21 of multiple crisscrossed sheet metal parts, making it easier to overlook some parts, increasing operational difficulty, and affecting work efficiency. Increasing the outline gap for easier assembly, however, will affect the positioning accuracy between the sheets, and may even cause slight misalignment and wobbling between the sheets.

[0006] When intelligent robotic arms are used for assembly, the high precision requirements of the insertion process can make the above problems more serious than with manual operations, and may even make it difficult to implement.

[0007] If the edges of the board edge positioning insert 12 or the board surface positioning insert 21 are chamfered by machining or manual methods, the above problems will be alleviated, but the efficiency will obviously be significantly reduced, which is not worth the effort. Summary of the Invention

[0008] To address the aforementioned shortcomings of the existing technology and reduce the assembly difficulty of the panels, the present invention proposes the following improvement scheme:

[0009] This is a right-angle interlocking structure between panels.

[0010] Includes first plate 1 and second plate 2;

[0011] The first plate 1 has at least one edge bolt and nut connection notch 11 on its edge;

[0012] The notch 11 for connecting bolts and nuts on the plate edge includes a nut insertion section 111 and a screw insertion section 112;

[0013] Nut insertion section 111 can accommodate a nut 4 of the same specification;

[0014] The first plate 1 has at least one plate edge positioning insert 12 that protrudes outward from the plate edge where the plate edge bolt and nut connection notch 11 is located.

[0015] The second plate 2 has at least one plate surface positioning insertion hole 21 and at least one bolt mounting hole 22.

[0016] When the edge of the first plate 1, which includes the notch 11 for connecting the plate edge bolt and nut and the locating plate 12 for positioning, is aligned with the surface of the second plate 2 at a mutually perpendicular angle, the locating plate 12 for positioning of the first plate 1 can be aligned and inserted into the corresponding locating hole 21 on the surface of the second plate 2. The notch 11 for connecting the plate edge bolt and nut of the first plate 1 is also aligned and connected with the corresponding bolt mounting hole 22 on the second plate 2. Furthermore, a bolt 3 of the same specification can pass through the bolt mounting hole 22 on the second plate 2, then through the notch 11 for connecting the plate edge bolt and nut of the first plate 1, and then be screwed into the screw hole of a nut 4 of the same specification that has been inserted into the nut embedding section 111 of the second plate 2. The locking surface of the nut 4 is abutted by the step between the screw insertion section 111 and the nut embedding section 112.

[0017] Its characteristics are:

[0018] The main side surface of the plate edge positioning insert 12 of the first plate 1 has at least one outwardly protruding insert arch ridge 121.

[0019] The sidewall of the positioning socket 21 of the second plate 2 includes at least two socket limiting surfaces 212 and at least one outwardly recessed socket guiding area 211.

[0020] When the edge positioning insert 12 of the first plate 1 is aligned with the corresponding edge positioning insert 21 of the second plate 2, the insert ridge 121 of the edge positioning insert 12 of the first plate 1 is aligned with the insertion guide area 211 of the plate surface positioning insert 21 of the second plate. When the edge positioning insert 12 of the first plate 1 begins to be inserted into the corresponding edge positioning insert 21 of the second plate 2, the insert ridge 121 of the edge positioning insert 12 of the first plate 1 first enters the insertion guide area 211 of the plate surface positioning insert 21 of the second plate.

[0021] When the edge positioning plate 12 of the first plate 1 is fully inserted into the surface positioning hole 21 of the second plate 2, the edge positioning plate 12 is clamped and limited by the hole end face 122 of the surface positioning hole 21 and each hole limiting face 212.

[0022] Preferably,

[0023] The insert plate arch ridge 121 of the first plate 1 is located in the middle of the main side surface of the plate edge positioning insert plate 12;

[0024] The insertion guide area 211 of the second plate 2 is located in the middle of the insertion side wall of the plate positioning insertion hole 21, and the insertion limiting surface 212 is located on both sides of the insertion guide area 211 of the hole side wall.

[0025] Preferably,

[0026] The ridge 121 of the first plate 1 edge positioning plate 12 is offset outside the middle of the edge surface of the plate;

[0027] The insertion guide area 211 of the second plate 2 plate surface positioning insertion hole 21 is offset outside the middle of the insertion hole side wall.

[0028] Preferably,

[0029] The ridge 121 of the first plate 1 edge positioning plate 12 is offset on both sides of the middle part of the edge surface of the plate;

[0030] The insertion limiting surface 212 of the second plate 2 plate surface positioning insertion hole 21 is located in the middle of the insertion hole side wall:

[0031] The insertion guide area 211 of the second plate 2 plate surface positioning insertion hole 21 is offset on both sides of the middle part of the insertion hole side wall.

[0032] Preferably,

[0033] The first plate 1 has at least two of the aforementioned edge positioning plates 12a and 12b on its edge.

[0034] There is a notch 11n for connecting the plate edge bolt and nut between the two plate edge positioning plates 12a and 12b;

[0035] Furthermore, the opposite side end faces 122a1 and 122b1 of the two adjacent plate edge positioning plates 12a and 12b constitute the two side walls of the screw insertion section 112n of the plate edge bolt and nut connection notch 11n.

[0036] The two edge positioning inserts 12a and 12b each include insert ridges 121a and 121b and nut clearance surfaces 123a and 123b; the nut clearance surfaces 123a and 123b are adjacent to the bolt and nut connection notch 11n.

[0037] The second plate 2 includes at least two adjacent plate surface positioning holes 21a and 21b, with a bolt mounting hole 22n provided between the two plate surface positioning holes 21a and 21b, and the two plate surface positioning holes 21a and 21b are connected to the bolt mounting hole 22n; the bolt mounting hole 22n is adjacent to the insertion limiting surfaces 212a and 212b of the two plate surface positioning holes 21a and 21b; the insertion guiding areas 211a and 211b of each plate surface positioning hole 21a and 21b are connected to the insertion limiting surfaces 212a and 212b.

[0038] When the two edge positioning plates 12a and 12b of the first plate 1 are aligned with the two corresponding plate surface positioning holes 21a and 21b of the second plate 2, the plate arch ridges 121a and 121b of the two edge positioning plates 12a and 12b of the first plate 1 are aligned with the hole guide areas 211a and 211b of the two corresponding plate surface positioning holes 21a and 21b of the second plate 2, and the bolt and nut connection notch 11 of the first plate 1 is aligned with each other. n is also aligned with the bolt mounting hole 22n at the corresponding position of the second plate 2. When the two edge positioning plates 12a and 12b of the first plate 1 begin to be inserted into the two surface positioning holes 21a and 21b of the second plate 2 at the corresponding positions, the plate arch ridges 121a and 121b of the two edge positioning plates 12a and 12b of the first plate 1 first enter the hole guide areas 211a and 211b of the two surface positioning holes 21a and 21b of the second plate 2.

[0039] When the bolt 3n is fully inserted into the bolt and nut connection notch 11n on the plate edge, the nut clearance surfaces 123a and 123b do not obstruct the locking contact between the nut 32n and the plate surface of the second plate 2.

[0040] In this invention, since each edge positioning insert 12 is provided with an insert ridge 121 on its edge surface, and each corresponding plate positioning insert hole 21 is also provided with an outwardly recessed insert hole guide area 211, when the edge positioning insert 12 is inserted into the plate positioning insert hole 21, the insert ridge 121 that first enters the plate positioning insert hole 21 will easily insert into the insert hole guide area 211, which has a larger width inside the hole due to its outwardly recessed shape. Then, as the insertion depth of the insert ridge 121 increases, the overall structure of the edge positioning insert 12 will automatically and smoothly enter the plate positioning insert hole 21, and be clamped and limited by the insert hole limiting surface 212 with the highest processing precision, thus forming a high-precision assembly posture, thereby significantly reducing the assembly difficulty between plates, improving work efficiency, and making it easier to meet the operation requirements of intelligent robotic arms.

[0041] In this document, the term "plate" includes rigid plate-shaped parts with straight edges made of metal or non-metal plates, and it is obvious that "plate" should not include thin plates that are difficult to apply the present invention to; the terms "first" and "second" are temporary designations to distinguish different plates; the term "plate edge" refers to the edge surface of the plate surface; the term "insertion plate side surface" refers to the extension surface of the plate surface on the plate edge positioning insert 12; the term "insertion plate edge face" refers to the plate edge of the plate edge positioning insert 12; the term "insertion hole sidewall" refers to the long side surface of the cut circumference of the plate surface positioning insert 21; the term "insertion hole end wall" refers to the end side surface of the cut circumference of the plate surface positioning insert 21.

[0042] The term "front" refers to the direction pointing towards the observer when viewing the parts shown in the referenced view, while the direction away from the observer is called "back". The terms "up", "down", "left", and "right" are based on the top, bottom, left, and right of the referenced view. The term "bottom" refers to the bottom of a specific part in the referenced view in the attached drawing, and "top" refers to the top of a specific part in the referenced view in the attached drawing.

[0043] The terms above are only for the purpose of accurately describing the relative positional relationships of the various parts of the present invention, and are not intended to indicate or imply that the components referred to must have a specific orientation, or must be combined and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0044] More specific technical features and beneficial effects of the present invention will be described in further detail in the following embodiments with reference to the accompanying drawings. Attached Figure Description

[0045] Figure 1 These are the front view and a partial enlarged view of the first plate component in Embodiment 1;

[0046] Figure 2 yes Figure 1 A 3D view and a close-up view of the first plate shown;

[0047] Figure 3 These are the front view and a partial enlarged view of the second plate component in Embodiment 1;

[0048] Figure 4 yes Figure 3 A perspective view and a partial enlarged view of the second plate shown;

[0049] Figure 5 The images show a partially cut-out assembly perspective view and a partially enlarged view in the lower right corner of Example 1.

[0050] Figure 6 yes Figure 5 A bottom view and a magnified close-up view;

[0051] Figure 7 These are the front view and a partial enlarged sectional view of the first and second plates of Embodiment 1 when they are assembled together;

[0052] Figure 8 yes Figure 7 The front view and enlarged partial sectional view of the first and second plates after they have been assembled;

[0053] Figure 9 This is a perspective view of the first plate component in Embodiment 2;

[0054] Figure 10 This is a perspective view of the second plate component in Embodiment 2;

[0055] Figure 11 These are the front view and a partial enlarged sectional view of the first and second plates in Embodiment 2 when they are joined at an angle.

[0056] Figure 12 These are bottom views and enlarged views of the completed assembly of Example 2;

[0057] Figure 13 This is a three-dimensional view of the assembled form with partial cross-section of Example 2;

[0058] Figure 14 This is a perspective view of the completed assembly of Example 2;

[0059] Figure 15 This is a partial front view of the first plate in Embodiment 3;

[0060] Figure 16 This is a front view of the second plate in Embodiment 3;

[0061] Figure 17 This is a partially cross-sectional perspective view of the assembled embodiment 3.

[0062] Figure 18This is a partially cut-out perspective view of the assembled plate with an extended edge positioning insert as described in Example 3.

[0063] Figure 19 This is a partial front view of the first plate in Embodiment 4;

[0064] Figure 20 yes Figure 19 A three-dimensional image;

[0065] Figure 21 This is a partial front view of the second plate in Embodiment 4;

[0066] Figure 22 yes Figure 21 A three-dimensional image;

[0067] Figure 23 This is a three-dimensional view of the assembly of Example 4 with partial cross-section and without bolts and nuts installed;

[0068] Figure 24 Figure 23 A partial bottom view of the assembly without bolts and nuts installed, after removing the partial sectioning;

[0069] Figure 25 Figure 23 A partial bottom view of the assembly with bolts and nuts already installed, after removing the partial sectioning;

[0070] Figure 26 This is a three-dimensional view of the assembled embodiment 4;

[0071] Figure 27 This is a partial front view of the first plate in Embodiment 5;

[0072] Figure 28 This is a partial front view of the second plate in Embodiment 5;

[0073] Figure 29 This is a three-dimensional view of the assembly of Example 5 with partial cross-section and without bolts and nuts installed;

[0074] Figure 30 This is a three-dimensional view of the assembly of Example 5 with partial cross-section and bolts and nuts already installed;

[0075] Figure 31 yes Figure 30 A partial bottom view of the assembly with bolts and nuts already installed, after removing the partial sectioning;

[0076] Figure 32 The drawing is selected from the published patent application CN117847059A.

[0077] Figure label:

[0078] 1-First plate, 11-Board edge bolt and nut connection notch, 111-Nut insertion section, 112-Screw insertion section.

[0079] 12-Edge positioning insert, 121-Insert plate arch ridge, 122-Insert plate end face, 123-Nut clearance surface, 2-Second plate component.

[0080] 21-Plate positioning hole, 211-Hole guide area, 212-Hole limiting surface, 213-Hole end face, 22-Bolt mounting hole, 221-Bolt hole wrap angle, 3-Bolt, 31-Threaded rod, 32-Nut, 4-Nut. Detailed Implementation

[0081] Embodiment 1 of the present invention is as follows Figures 1 to 8 As shown.

[0082] See Figure 1 , Figure 2 This is a front view and a perspective view of the first plate 1, one of the two metal plates processed by laser cutting in this embodiment. The bottom edge of the first plate 1 is provided with two plate edge bolt and nut connection notches 11. Each plate edge bolt and nut connection notch 11 includes a lower screw insertion section 112 and an upper nut insertion section 111. The nut insertion section 111 can be used to insert a nut 4 of a matching specification.

[0083] Three edge positioning plates 12 are evenly arranged on the bottom edge of the first plate 1. To facilitate insertion and removal, the left and right bottom corners of each edge positioning plate 12 are beveled.

[0084] The bottom main side surface of the first plate 1 has a downward protruding plate arch ridge 121, and the overall arching amplitude of the plate arch ridge 121 is about 2mm.

[0085] See Figure 3 , Figure 4 This is a front view and a perspective view of the second plate 2, one of the two metal plates processed by laser cutting in this embodiment.

[0086] The second plate 2 has three plate surface positioning insertion holes 21 and two bolt mounting holes 22. The insertion hole sidewall of the plate surface positioning insertion hole 21 of the second plate 2 includes two pairs of parallel insertion hole limiting surfaces 212 located on the left and right sides of the sidewall and a pair of insertion hole guiding areas 211 located in the middle of the sidewall. Both of these roughly arc-shaped insertion hole guiding areas 211 are recessed outward from the hole, forming a cavity area with a width 2 mm larger than the thickness of the first plate 1.

[0087] Figures 5 to 8 The process and result of assembling the first plate 1 and the second plate 2 in this embodiment are shown.

[0088] See Figure 5 , Figure 6 When the edge of the first plate 1, which includes two edge bolt and nut connection notches 11 and three edge positioning inserts 12, is aligned and connected to the surface of the second plate 2 at mutually perpendicular angles, the three edge positioning inserts 12 of the first plate 1 can be simultaneously aligned and inserted into the three corresponding positioning holes 21 of the second plate 2. The two edge bolt and nut connection notches 11 of the first plate 1 are also aligned and connected with the two corresponding bolt mounting holes 22 of the second plate 2. Furthermore, two matching bolts 3 can pass through the two bolt mounting holes 22 of the second plate 2, then through the two edge bolt and nut connection notches 11 of the first plate 1, and then be screwed into the screw holes of two matching nuts 4 that have been inserted into the two nut embedding sections 111 of the second plate 2. The locking surface of the nuts 4 is abutted by the step between the screw insertion section 111 and the nut embedding section 112.

[0089] See Figure 7 , Figure 8 When the edge positioning insert 12 of the first plate 1 is aligned with the corresponding edge positioning insert 21 of the second plate 2, the insert ridge 121 of the edge positioning insert 12 of the first plate 1 and the insertion guide area 211 of the plate surface positioning insert 21 of the second plate are aligned with each other. When the edge positioning insert 12 of the first plate 1 begins to be inserted into the corresponding edge positioning insert 21 of the second plate 2, the insert ridge 121 of the edge positioning insert 12 of the first plate 1 first enters the insertion guide area 211 of the plate surface positioning insert 21 of the second plate.

[0090] When the edge positioning plate 12 of the first plate 1 is fully inserted into the surface positioning hole 21 of the second plate 2, the edge positioning plate 12 is clamped and limited by the hole end face 122 of the surface positioning hole 21 and each hole limiting face 212.

[0091] As can be seen from this embodiment, the ridge 121 of the plate edge positioning insert 12 is equivalent to a stepped structure with an inclined surface. When inserted into the guide area 211 of the plate surface positioning insert 21, the relatively spacious redundancy obviously makes it easy for either humans or machines to complete the alignment and insertion. After full insertion, the plate edge positioning insert 12, under the clamping of the insert end face 122 and the limiting surfaces 212 of each insert, can ensure that the two plates are assembled with precise assembly dimensions, thus achieving the purpose of the invention.

[0092] Example 2 Figures 9 to 14 As shown.

[0093] See Figure 9In this embodiment, the bottom edge of the first plate 1 is provided with two left and right plate edge positioning inserts 12 and a middle plate edge bolt and nut connection notch 11. Unlike embodiment 1, in this embodiment, the insert plate arch ridge 121 of the first plate 1 is offset at a position near the left and right insert plate end faces 122 on the insert plate edge surface at the bottom of the plate edge positioning insert 12.

[0094] See Figure 10 Correspondingly, in this embodiment, the insertion guide area 211 of the second plate 2 plate surface positioning insertion hole 21 is also offset at a position near the left and right insertion hole end faces 213 on the insertion hole sidewall. The insertion limiting surface 212 of the plate surface positioning insertion hole 21 is located in the middle of the insertion hole sidewall.

[0095] See Figure 11 Compared with Embodiment 1, the advantage of offsetting the insert plate arch 121 in this embodiment is that during assembly, the outer side of the first plate 1 edge positioning insert plate 12 offset insert plate arch 121 can more easily find and insert into the insertion guide area 211 of the plate surface positioning insert hole 21 with a large tilt angle.

[0096] See Figure 12 Compared to Embodiment 1, the centrally located insertion hole limiting surface 212 in this embodiment allows the inserted plate edge positioning plate 12 to be slightly deflected around the center of the hole. When the first plate 1, which has a large lateral length and can be slightly bent, needs to form a large-radius curved wall structure on the surface of the second plate 2, it is easy to understand that this feature of this embodiment will be more conducive to the bending assembly operation of the first plate 1.

[0097] See Figure 13 , Figure 14 Although a single edge positioning plate 12 in this embodiment is prone to deflection, as long as the edge positioning plates 12 are configured in pairs, the precise assembly operation of the two plates can still be guaranteed.

[0098] Example 3 Figures 15 to 18 As shown.

[0099] See Figure 15 Similar to Embodiment 2, the bottom edge of the first plate 1 in this embodiment is also provided with two left and right edge positioning inserts 12 and a middle edge bolt and nut connection notch 11. However, unlike Embodiment 2, each edge positioning insert 12 of the first plate 1 in this embodiment has only one insert ridge 121, and the insert ridge 121 is offset at the position near the single-sided insert end face 122 on the insert edge surface at the bottom of the edge positioning insert 12.

[0100] In this embodiment, the ridges 121 of the two plate-side positioning plates 12 are both located in the direction of the plate-side bolt and nut connection notch 11 near the middle.

[0101] See Figure 16 Correspondingly, in this embodiment, the insertion guide area 211 of the second plate 2 plate surface positioning insertion hole 21 is also offset next to the insertion end face of the insertion hole sidewall facing the plate edge bolt and nut connection notch 11. The insertion limiting surface 212 of the plate surface positioning insertion hole 21 is offset to the other side section of the insertion hole sidewall.

[0102] See Figure 17 Compared with Embodiment 1, the advantage of offsetting the insert plate arch ridge 121 inward in this embodiment is that the insertion hole limiting surfaces 212 of the two plate positioning holes 21 are far apart, which is conducive to strengthening the posture stability of the first plate 1 relative to the second plate 2 and making it easier to avoid force deflection.

[0103] See Figure 18 To facilitate additional welding reinforcement processes, the height of the edge positioning insert 12 can be appropriately increased, allowing the insert plate exposed outside the second plate 2 to form a good welding prism. Similarly, the previous embodiments can also employ an elongated structure to facilitate welding.

[0104] Example 4 Figures 19 to 26 As shown.

[0105] See Figure 19 , Figure 20 In this embodiment, the first plate 1 has at least two left and right side positioning inserts 12a and 12b.

[0106] There is a plate edge bolt and nut connection notch 11n between the two plate edge positioning plates 12a and 12b. The plate end faces 122a1 and 122b1 on opposite sides of the two adjacent plate edge positioning plates 12a and 12b constitute the left and right side walls of the screw insertion section 112n of this plate edge bolt and nut connection notch 11n.

[0107] The bottom edge of the left-side positioning plate 12a has a left-side plate arch ridge 121a and a right-side nut clearance surface 123a. The bottom edge of the right-side positioning plate 12b has a right-side plate arch ridge 121b and a left-side nut clearance surface 123b.

[0108] The nut clearance surfaces 123a and 123b are adjacent to the bolt and nut connection notch 11n.

[0109] See Figure 21 , Figure 22 The second plate 2 includes two adjacent left and right plate positioning holes 21a and 21b, and a bolt mounting hole 22n is provided between these two plate positioning holes 21a and 21b. Furthermore, these two plate positioning holes 21a and 21b are merged and connected with this bolt mounting hole 22n to form an elongated hole with an irregular contour surface.

[0110] The insertion guide area 211a of the left-side panel positioning insertion hole 21a is located on the left side and is adjacent to the left side insertion hole end face 213a. The insertion hole limiting surface 212a is located on the right side and is adjacent to the bolt mounting hole 22n.

[0111] The insertion guide area 211b of the right-side panel positioning insertion hole 21b is located on the right side and is adjacent to the right-side insertion hole end face 213b. The insertion limiting surface 212b is located on the left side and is adjacent to the bolt mounting hole 22n.

[0112] Between each insertion hole limiting surface 212a, 212b and the bolt mounting hole 22n, there is a bolt hole wrap angle 221, which increases the contact area between the tightened bolt cap 32 and the second plate 2 and strengthens the connection strength.

[0113] The insertion guide areas 211a and 211b of the positioning insertion holes 21a and 21b on the board surface are smoothly connected and transitioned with the insertion limiting surfaces 212a and 212b, so as to reduce the friction of the board parts during assembly.

[0114] See Figures 23 to 26 When the left and right side positioning plates 12a and 12b of the first plate 1 are aligned with the left and right side positioning holes 21a and 21b of the second plate 2 respectively, the plate arch ridges 121a and 121b of the left and right side positioning plates 12a and 12b of the first plate 1 are aligned with the hole guide areas 211a and 211b of the left and right side positioning holes 21a and 21b of the second plate 2.

[0115] At the same time, the corresponding bolt and nut connection notch 11n on the first plate 1 is also aligned and connected with the corresponding bolt mounting hole 22n on the second plate 2.

[0116] Furthermore, when the left and right side positioning plates 12a and 12b of the first plate 1 begin to be inserted into the corresponding two plate surface positioning holes 21a and 21b of the second plate 2, the plate arch ridges 121a and 121b of the two side positioning plates 12a and 12b of the first plate 1 first enter the hole guide areas 211a and 211b of the two plate surface positioning holes 21a and 21b of the second plate 2.

[0117] When bolt 3n is fully inserted into the bolt and nut connection notch 11n on the plate edge, the nut clearance surfaces 123a and 123b do not obstruct the locking contact between nut 32n and the plate surface of the second plate 2. That is to say, the dimensions of nut clearance surfaces 123a and 123b should ensure that they can be recessed into the positioning holes 21a and 21b on the plate surface after assembly.

[0118] This embodiment is obviously advantageous in cases where the size of the board is small or the height of the first board is low, as the board surface positioning hole 21, which occupies less space, can also enable a reliable connection between the boards.

[0119] Example 5 Figures 27 to 31 As shown.

[0120] See Figure 27 , Figure 28 This embodiment is based on the basic features of embodiment 4, but the positions of the ridges 121a and 121b of the two edge positioning plates 12a and 12b of the first plate 1 are moved inward to the middle of the bottom edge of the edge positioning plates 12a and 12b. Correspondingly, the hole guide areas 211a and 211b of the plate surface positioning holes 21a and 21b are moved towards the center, and hole limiting surfaces 212a and 212b are provided on both sides of the hole guide areas 211a and 211b of the plate surface positioning holes 21a and 21b.

[0121] See Figures 29 to 31 Compared to Embodiment 4, this embodiment increases the distance between the farthest insertion limiting surfaces 212a and 212b of the positioning insertion holes 21a and 21b on the left and right plates. Obviously, this can enhance the attitude resistance to rotation of the first plate 1.

[0122] In practical applications, the technical solutions in the various embodiments of the present invention can be selected optimally according to different stress conditions of the plate.

[0123] To clearly distinguish different application locations or different application forms of the same type of technical feature, this specification, the accompanying drawings, and the claims use the same reference numerals plus different lowercase letters to distinguish technical features that belong to the same technical feature but have different specific locations or different application forms. For example, the technical features referred to by reference numerals 21a and 21b both belong to the same technical feature—the plate positioning socket 21—but are located in different left and right regions of the plate edge positioning socket 21 with a special application form in the accompanying drawings of specific embodiments.

Claims

1. Right-angle interlocking structure between panels, Includes a first plate (1) and a second plate (2); The first plate (1) has at least one notch (11) for connecting plate edge bolts and nuts; The notch (11) for connecting bolts and nuts on the plate edge includes a nut insertion section (111) and a screw insertion section (112); The nut insert section (111) can be fitted with a nut (4) of the same specification; The first plate (1) has at least one plate edge positioning insert (12) that protrudes outward from the plate edge where the plate edge bolt and nut connection notch (11) is located. The second plate (2) has at least one plate surface positioning insertion hole (21) and at least one bolt mounting hole (22). When the edge of the first plate (1) including the plate edge bolt and nut connection notch (11) and the plate edge positioning plate (12) is aligned and connected with the plate surface of the second plate (2) at a mutually perpendicular angle, the plate edge positioning plate (12) of the first plate (1) can be aligned and inserted into the corresponding plate surface positioning hole (21) of the second plate (2). The plate edge bolt and nut connection notch (11) of the first plate (1) is also aligned and connected with the corresponding bolt mounting hole (22) of the second plate (2). Furthermore, the bolt (3) of the matching specification can pass through the bolt mounting hole (22) of the second plate (2), then pass through the plate edge bolt and nut connection notch (11) of the first plate (1), and then be screwed into the screw hole of the nut (4) of the matching specification that has been inserted into the nut embedding section (111) of the second plate (2). The locking surface of the nut (4) is abutted by the step between the screw insertion section (112) and the nut embedding section (111). Its characteristics are: The main side surface of the plate edge positioning insert (12) of the first plate (1) has at least one outwardly protruding insert arch ridge (121); The sidewall of the positioning socket (21) of the second plate (2) includes at least two socket limiting surfaces (212) and at least one outwardly recessed socket guiding area (211); When the edge positioning plate (12) of the first plate (1) is aligned with the corresponding plate surface positioning hole (21) of the second plate (2), the plate arch (121) of the edge positioning plate (12) of the first plate (1) and the hole guide area (211) of the plate surface positioning hole (21) of the second plate are aligned with each other. When the edge positioning plate (12) of the first plate (1) begins to be inserted into the corresponding plate surface positioning hole (21) of the second plate (2), the plate arch (121) of the edge positioning plate (12) of the first plate (1) first enters the hole guide area (211) of the plate surface positioning hole (21) of the second plate. When the edge positioning plate (12) of the first plate (1) is fully inserted into the plate surface positioning hole (21) of the second plate (2), the edge positioning plate (12) is clamped and limited by the plate end face (122) of the plate surface positioning hole (21) and the limiting surface (212) of each hole.

2. The right-angle insertion structure between plates according to claim 1, characterized in that: The insert arch ridge (121) of the first plate (1) is located in the middle of the main side surface of the plate edge positioning insert (12); The insertion guide area (211) of the second plate (2) is located in the middle of the insertion side wall of the plate positioning insertion hole (21), and the insertion limiting surface (212) is located on both sides of the insertion guide area (211) of the hole side wall.

3. The right-angle insertion structure between plates according to claim 1, characterized in that: The ridge (121) of the first plate (1) edge positioning insert (12) is offset outside the middle of the insert edge surface; The insertion guide area (211) of the second plate (2) plate surface positioning insertion hole (21) is offset outside the middle of the insertion hole side wall.

4. The right-angle insertion structure between plates according to claim 3, characterized in that: The ridge (121) of the first plate (1) edge positioning insert plate (12) is offset on both sides of the middle part of the insert plate edge surface; the insertion hole limiting surface (212) of the second plate (2) plate surface positioning insert hole (21) is located in the middle of the insertion hole side wall: The insertion guide area (211) of the second plate (2) plate surface positioning insertion hole (21) is offset on both sides of the middle part of the insertion hole side wall.

5. The right-angle insertion structure between plates according to claim 1, characterized in that: The first plate (1) has at least two of the said plate edge positioning plates (12) on its edge. There is a notch (11) for connecting the plate edge bolt and nut between the two plate edge positioning inserts (12); Furthermore, the end faces (122) of the two adjacent plate-side positioning inserts (12) on opposite sides constitute the two side walls of the screw insertion section (112) of the plate-side bolt and nut connection notch (11); The two plate-side positioning inserts (12) each include an insert plate arch ridge (121) and a nut clearance surface (123); the nut clearance surface (123) is adjacent to the bolt and nut connection notch (11); The second plate (2) includes at least two adjacent plate positioning holes (21), with a bolt mounting hole (22) provided between the two plate positioning holes (21), and the two plate positioning holes (21) and the bolt mounting hole (22) are connected and merged; the bolt mounting hole (22) is adjacent to the insertion limiting surface (212) of the two plate positioning holes (21); the insertion guide area (211) of each plate positioning hole (21) is connected to the insertion limiting surface (212); When the two edge positioning plates (12) of the first plate (1) are respectively aligned with the two plate surface positioning holes (21) of the corresponding positions of the second plate (2), the plate arch ridges (121) of the two edge positioning plates (12) of the first plate (1) are aligned with the hole guide areas (211) of the two plate surface positioning holes (21) of the corresponding positions of the second plate (2), and the bolt and nut connection notch (11) of the first plate (1) is also aligned with the bolt mounting hole (22) of the corresponding position of the second plate (2). When the two edge positioning plates (12) of the first plate (1) begin to be inserted into the two plate surface positioning holes (21) of the corresponding positions of the second plate (2), the plate arch ridges (121) of the two edge positioning plates (12) of the first plate (1) first enter the hole guide areas (211) of the two plate surface positioning holes (21) of the second plate (2). When the bolt (3) is fully inserted into the bolt and nut connection notch (11) on the plate edge, the nut clearance surface (123) does not obstruct the locking contact between the nut (32) and the plate surface of the second plate (2).

6. The right-angle insertion structure between plates according to claim 5, characterized in that: The plate positioning socket (21) has socket limiting surfaces (212) on both sides of the socket guide area (211).

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