Multifunctional support

Abstract

The multifunctional support comprises four outer side rails, a plurality of transverse rails, a plurality of rail supporting assemblies, an outer clamping rail matching piece and an inner clamping rail matching piece, a frame body is defined by the four outer side rails, a rough framework is formed firstly, then the transverse rails are arranged in the four outer side rails in parallel at equal intervals, and the rail supporting assemblies are arranged on the outer side rails. The lower portions of the outer side rails and the lower portions of the transverse rails are connected through the rail supporting assemblies, the rail supporting assemblies are connected with the ground or the installation face, the outer side rails and the transverse rails can be elevated, then the outer clamping rail matching pieces and the inner clamping rail matching pieces are installed on the outer side rails and the transverse rails, and the outer clamping rail matching pieces and the inner clamping rail matching pieces are matched according to actual installation conditions. And the outer clamping rail matching piece and the inner clamping rail matching piece are selected, and adjustment is carried out through multiple parts, so that the functions that the bracket is adjustable and the mounting is stable are realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic brackets, and in particular relates to a multifunctional bracket. Background Art

[0002] At present, the photovoltaic bracket side pressure block of the existing technology adopts a fixed side pressure block structure, and the structure of the pressure block is complicated, the material consumption is high, the weight is large, the adjustment after installation is cumbersome and complicated, and it lacks flexibility. In actual operation, it is not conducive to the installers to adjust the installation adaptively according to the changes in the site. A bracket that can be easily adjusted needs to have a reasonable skeleton layout and an appropriate height, and should not be too close to the ground. In view of this, this solution was created. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a multifunctional bracket with a reasonable layout and convenient adjustment.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a multifunctional bracket, including four outer rails, multiple transverse rails, multiple rail support assemblies, outer clamping rail fittings and inner clamping rail fittings, the four outer rails are connected head to tail and distributed in a square, multiple transverse rails are located on the inner side of the four outer rails and are arranged at intervals, multiple transverse rails are parallel, the outer rails and transverse rails are connected to multiple rail support assemblies below, the bottom of the rail support assembly is fixedly connected to the plane to be connected, the transverse rails are provided with outer clamping rail fittings and inner clamping rail fittings, the outer rails are provided with outer clamping rail fittings, and the outer clamping rail fittings and the inner clamping rail fittings can be connected to the plate to be connected above.

[0005] Furthermore, the rail support assembly includes a hook base and a hook assembly, the hook base includes a fixed portion and an inclined limiting sliding portion, the fixed portion is connected to one side of the inclined limiting sliding portion, the inclined limiting sliding portion is an inclined surface facing upward, the inclined surface is inclined downward from the outside toward the upper surface of the fixed portion, the upper surface of the inclined surface has a sliding groove, the inclined limiting sliding portion is passed through on both sides of the sliding groove, the upper surface of the inclined surface has a plurality of first ridges arranged at equal intervals, and the length direction of the first ridges corresponds to the length direction of the sliding groove;

[0006] The hook assembly includes an inclined locking section, a first horizontal section, a first vertical section, a second horizontal section, a second vertical section and a first bolt, the back of the inclined locking section having a plurality of spaced-apart clips, the inclined locking section having a first strip-shaped locking hole, the first horizontal section being connected to the upper end of the inclined locking section and facing outward, the first vertical section being connected to the end of the first horizontal section, the second horizontal section being connected to the end of the first vertical section and facing inward, the second vertical section being connected to the end of the second horizontal section, two corresponding surfaces of the first vertical section, the second horizontal section and the second vertical section being provided with a first strip-shaped serration, and the second vertical section having a second strip-shaped locking hole provided up and down;

[0007] The first protruding strip of the tilt-limiting sliding portion and the clamping strip of the tilt-locking section are adapted to each other and connected by a first bolt;

[0008] The first bolt includes a first head, a first connecting portion and a first nut. The first head is locked in the sliding groove. The first connecting portion is connected to the surface of the first head. The first connecting portion extends out of the sliding groove and passes through the first strip locking hole to be connected to the first nut.

[0009] Furthermore, the outer rail and the transverse rail have the same structure, the outer rail has a sliding hole that passes through the upper surface and two side surfaces, the first locking strips extend outward at both ends of the upper opening of the sliding hole, and the second locking strips extend inward at both ends of the upper opening of the sliding hole, a claw groove is formed on the inner side of the lower surface of the first locking strip, and a second strip-shaped serration is formed on the lower surface of the first locking strip, the side surface of the outer rail further has a first mounting groove that passes through both sides, the first mounting groove is located below the sliding hole, and the outer rail has third strip-shaped serrations on both sides of the opening of the first mounting groove, the first strip-shaped serrations and the third strip-shaped serrations are adapted to each other, and the second vertical section is connected to the first mounting groove by a second bolt;

[0010] The second bolt includes a second head, a second connecting portion and a second nut. The second head is locked in the first mounting groove, the second connecting portion is connected to the surface of the second head, and the second connecting portion extends out of the first mounting groove and passes through the second strip locking hole to be connected to the second nut.

[0011] Furthermore, the external card track fitting includes a first sliding frame, a first connecting plate and a third bolt, the first connecting plate having a first threaded hole extending vertically therethrough, the lower surface of the first connecting plate having two first abutting plates, the two first abutting plates being located on either side of the first threaded hole, the first abutting plates being perpendicular to the lower surface of the first connecting plate;

[0012] The first sliding frame includes a first locking plate and two first legs, the two first legs are connected to both sides of the lower surface of the first locking plate, the first locking plate has a first connecting hole, the two first legs have two first protrusions on the inward side, and the two first protrusions are arranged at intervals; a protruding claw is formed on one side of the upper surface of the first protrusion located below.

[0013] Furthermore, two L-shaped placement plates are formed on the lower surface of the locking plate, and the extended ends of the two L-shaped placement plates are arranged opposite to each other and located on both sides of the connecting hole. A third nut is provided between the L-shaped placement plates, and the third bolt passes through the first threaded hole, the connecting hole and the third nut.

[0014] Furthermore, the inner card rail matching member includes a second sliding frame, a second connecting plate, a stable seat and a fourth bolt, the second connecting plate has a first threaded hole extending from top to bottom, an extension plate extending downward is formed on one side of the second connecting plate, and the end of the extension plate has an inclined plate; the inclined plate has a fourth strip-shaped serration on its inward side; the stable seat includes a stable plate and an inclined matching plate, the stable plate has a second threaded hole, the inclined matching plate is connected to one side of the stable plate, the inclined matching plate has the same inclination direction and angle as the inclined plate, and the inclined matching plate has a fifth strip-shaped serration on its outward side, and the fourth strip-shaped serration is adapted to the fifth strip-shaped serration;

[0015] The second sliding frame includes a second locking plate and two second legs, the two second legs are connected to both sides of the lower surface of the second locking plate, the second locking plate has a second connecting hole, and the outward side of the two legs has two second protrusions, and the two second protrusions are arranged at intervals.

[0016] Furthermore, a second protrusion is formed on one side of the second legs facing each other, a fourth nut is provided between the second protrusion and the locking plate, and the fourth bolt passes through the first threaded hole, the second connecting hole and the fourth nut.

[0017] Furthermore, one side of the upper surface of the second protrusion located below has a sixth strip-shaped sawtooth, and the sixth strip-shaped sawtooth is adapted to the second strip-shaped sawtooth.

[0018] Furthermore, the sliding groove includes a first locking sliding portion and a second locking sliding portion, the second locking sliding portion is located on the inner side of the first locking sliding portion, the first locking sliding portion includes a first extension portion and a first locking portion, the second locking sliding portion includes a second extension portion and a second locking portion, the opening of the second extension portion is located at the bottom of the groove of the first locking portion, and the opening width of the second extension portion is smaller than the width of the first locking portion.

[0019] The upper surface of the fixing portion is provided with a plurality of through holes, which are arranged in two rows. Adjacent through holes in each row are arranged at equal intervals. The upper surface of the fixing portion is provided with a processed long groove, and the axis of the processed long groove coincides with the axis of the through holes in the same row.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention forms a frame by enclosing four outer rails, first forming a rough skeleton, and then multiple transverse rails are arranged in parallel at equal intervals within the four outer rails. The outer rails and the transverse rails are connected below by a rail support assembly, and the rail support assembly is connected to the ground or the installation surface, which can raise the outer rails and the transverse rails. Then, the outer rail fittings and the inner rail fittings are installed on the outer rails and the transverse rails. According to the actual installation situation, the outer rail fittings and the inner rail fittings are selected, and they are adjusted through multiple components to achieve the functions of adjustable brackets and stable installation.

[0022] 2. The track support assembly in the present invention includes a hook base and a hook assembly. The hook assembly is snapped into the sliding groove of the tilting limiting sliding part of the hook base by bolts, and the tilting locking section on the hook assembly has multiple clips that intersect and engage with the first convex strips on the upper surface of the tilting limiting sliding part, thereby increasing the contact area and enhancing the connection strength. The base is fixedly arranged on the mounting surface. The above arrangement ensures that the hook assembly and the hook base are firmly matched. By setting the sliding groove, the hook assembly can be adjusted in the sliding groove, and the matching part is locked after being adjusted to the appropriate position, which is convenient and quick.

[0023] 3. The hook assembly in this solution has a second strip-shaped locking hole in the second vertical section at the upper end, and a first strip-shaped locking hole in the inclined locking section at the lower end. By setting the first strip-shaped locking hole, the hook assembly can be locked with the hook base through a first bolt, and by setting the second strip-shaped locking hole, the hook assembly can be locked with the first mounting groove of the outer rail and the transverse rail through a second bolt. The first horizontal section, the first vertical section, the second horizontal section, and the second vertical section are used to increase the transverse and vertical lengths of the hook assembly.

[0024] 4. In this solution, the first connecting plate is connected to the first sliding frame through a third bolt. The distance between the first sliding frame and the first connecting plate can be adjusted through the third bolt connection. The lower surface of the first connecting plate has two first abutment plates. During installation, one of the first abutment plates and the lower surface of the first connecting plate can abut against the side load-bearing tube. The first abutment plate is used to limit the position. The first connecting plate transmits gravity to the load-bearing tube. The first sliding frame is provided with two first legs. The two first legs have a first protrusion on the inner side, so that the first sliding frame can be embedded in the outer rail or the inner rail. The upper first protrusion is used to fit the load-bearing, and the lower first protrusion prevents derailment.

[0025] 5. In this solution, the second connecting plate is located above the second sliding frame and is connected by a fourth bolt. The height of the second connecting plate can be adjusted by the fourth bolt. The stabilizing seat is located between the second sliding frame and the second connecting plate and is passed through by the fourth bolt. The inclined matching plate of the stabilizing seat can be placed on the side load-bearing tube or the outer rail. The inclined plate of the second connecting plate is adapted to the inclined matching plate. The gravity borne by the second connecting plate can be transmitted to the inclined matching plate, and then transmitted to the side plate load-bearing tube or the outer rail, so that the overall support stability performance is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the top view of the outer track and the inner track in the present invention;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the hook base in the present invention;

[0028] Figure 3 Schematic diagram of the three-dimensional structure of the track support assembly in the present invention;

[0029] Figure 4 Schematic diagram of the three-dimensional structure of the track support assembly and the outer track in the present invention;

[0030] Figure 5 Schematic diagram of the side structure of the track support assembly and the outer track in the present invention;

[0031] Figure 6 For the present invention Figure 5 Schematic diagram of the local enlarged structure at A in the middle;

[0032] Figure 7 Schematic diagram of the three-dimensional structure of the outer track and the outer clamping track matching parts in the present invention;

[0033] Figure 8 Schematic diagram of the front view of the external track fitting of the present invention;

[0034] Figure 9 Schematic diagram of the side structure of the outer track fitting of the present invention;

[0035] Figure 10 Schematic diagram of the three-dimensional structure of the outer track and the inner track matching parts in the present invention;

[0036] Figure 11 Schematic diagram of the front view of the inner track fitting of the present invention;

[0037] Figure 12 It is a side structural schematic diagram of the inner track fitting in the present invention.

[0038] Markings in the figure: 1, outer rail; 11, sliding hole; 12, first mounting slot; 13, first retaining strip; 14, second retaining strip; 2, transverse rail; 3, rail support assembly; 31, hook base; 311, fixing portion; 3111, through hole; 3112, machining long slot; 312, tilting limiting sliding portion; 3121, first retaining sliding portion; 31211, first extending portion; 31212, first retaining portion; 3122, second retaining sliding portion; 31221, second extending portion; 31222, second retaining portion; 3123, weight-reducing hole; 3124, first convex strip; 32, hook assembly; 321, tilting locking section; 3211, first bar-shaped locking hole; 322, first horizontal section; 323, first vertical section ;324, second horizontal section;325, second vertical section;3251, second strip-shaped locking hole;4, external track fitting;41, first sliding frame;411, first locking plate;412, first support leg;4121, first protrusion;41211, protruding claw;413, L-shaped placement plate;42, first connecting plate;421, first support plate;5; internal track fitting;51, second sliding frame;511, second locking plate;5111, second protruding strip;5112, left clamping claw;5113, right clamping claw;512, bracket;5121, second protrusion;52, second connecting plate;521, extension plate;5211, inclined plate;53, stabilizing seat;531, stabilizing plate;532, inclined fitting plate;54, fourth bolt. DETAILED DESCRIPTION

[0039] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description.

[0040] like Figure 1-12 As shown, this embodiment provides a multifunctional bracket 512, including four outer rails 1, multiple transverse rails 2, multiple rail support components 3, outer clamping rail fittings 4 and inner clamping rail fittings.

[0041] The four outer rails 1 are connected end to end in a square distribution, and multiple transverse rails 2 are located on the inner side of the four outer rails 1 and are arranged at intervals. The multiple transverse rails 2 are parallel to each other, and the outer rails 1 and the transverse rails 2 are connected to multiple rail support components 3 below. The bottom of the rail support component 3 is fixed to the plane to be connected (installation surface or ground). Specifically, it is locked to the ground by long screws. The four outer rails 1 form a frame, first forming a rough skeleton, and then multiple transverse rails 2 are arranged in parallel at equal intervals in the four outer rails 1. The outer rails 1 and the transverse rails 2 are connected below by the rail support component 3. The rail support component 3 is connected to the ground or the installation surface, which can raise the outer rails 1 and the transverse rails 2, and then the outer rail fittings 4 and the inner rail fittings are installed on the outer rails 1 and the transverse rails 2. According to the actual installation situation, the outer rail fittings 4 and the inner rail fittings are selected, and adjusted by multiple components to achieve the adjustable and stable installation function of the bracket 512.

[0042] The track support component 3 includes a hook base 31 and a hook assembly 32. The hook base 31 includes a fixed portion 311 and a tilt limiting sliding portion 312. The fixed portion 311 is connected to one side of the tilt limiting sliding portion 312. Specifically, ten through holes 3111 are provided on the upper surface of the fixed portion 311. The through holes 3111 have two rows, and the adjacent through holes 3111 in each row are arranged at equal intervals. The upper surface of the fixed portion 311 has a machined long groove 3112, and the axis of the machined long groove 3112 coincides with the axis of the through holes 3111 in the same row. The tilted limiting sliding portion 312 also has a weight-reducing hole 3123. The upper side of the tilted limiting sliding portion 312 is an inclined surface. The inclined surface is tilted downward from the outside toward the upper surface of the fixed portion 311. The upper surface of the inclined surface has a sliding groove. The two sides of the sliding groove pass through the tilted limiting sliding portion 312. The upper surface of the inclined surface has a plurality of first ridges 3124 arranged at equal intervals. The length direction of the first ridge 3124 corresponds to the length direction of the sliding groove. Specifically, the sliding groove includes a first locking sliding portion 3121 and a second locking The stop sliding portion 3122, the second stop sliding portion 3122 is located on the inner side of the first stop sliding portion 3121, the first stop sliding portion 3121 includes a first extension portion 31211 and a first stop portion 31212, the second stop sliding portion 3122 includes a second extension portion 31221 and a second stop portion 31222, the opening of the second extension portion 31221 is located at the bottom of the groove of the first stop portion 31212, and the opening width of the second extension portion 31221 is smaller than the width of the first stop portion 31212.

[0043] The hook assembly 32 includes a tilted locking section 321, a first horizontal section 322, a first vertical section 323, a second horizontal section 324, a second vertical section 325, and a first bolt. The tilted locking section 321 has a plurality of spaced-apart clips on its back. The tilted locking section 321 defines a first strip-shaped locking hole 3211. The first horizontal section 322 is connected to the upper end of the tilted locking section 321 and faces outward. The first vertical section 323 is connected to the end of the first horizontal section 322. The second horizontal section 324 is connected to the end of the first vertical section 323 and faces inward. The second vertical section 325 is connected to the end of the second horizontal section 324. First strip-shaped serrations are provided on two corresponding surfaces of the first vertical section 323, the second horizontal section 324, and the second vertical section 325. The second vertical section 325 defines a second strip-shaped locking hole 3251 disposed above and below.

[0044] The first protrusion 3124 of the tilt limiting sliding portion 312 is matched with the clamping strip of the tilt locking section 321 and connected by a first bolt;

[0045] The first bolt includes a first head, a first connecting part and a first nut. The first head is locked in the sliding groove. The first connecting part is connected to the surface of the first head. The first connecting part extends out of the sliding groove and passes through the first strip locking hole 3211 to be connected to the first nut. The first head is locked in the first locking sliding part 3121 or the second locking sliding part 3122. The first locking sliding part 3121 or the second locking sliding part 3122 is selected according to the size of the first bolt.

[0046] The track support component 3 includes a hook base 31 and a hook assembly 32. The hook assembly 32 is fastened into the sliding groove of the tilt limiting sliding portion 312 of the hook base 31 by bolts, and the tilt locking section 321 on the hook assembly 32 has a plurality of clips that intersect and engage with the first ridges 3124 on the upper surface of the tilt limiting sliding portion 312, thereby increasing the contact area and enhancing the connection strength. The base is fixedly arranged on the mounting surface. The above arrangement ensures that the hook assembly 32 and the hook base 31 are firmly matched. By setting the sliding groove, the hook assembly 32 can be adjusted in the sliding groove, and the matching part is locked after being adjusted to the appropriate position, which is convenient and quick.

[0047] The outer rail 1 and the transverse rail 2 have the same structure. The outer rail 1 has a sliding hole 11 that runs through the upper surface and two side surfaces. A first retaining strip 13 extends outward at both ends of the upper opening of the sliding hole 11. A second retaining strip 14 extends inward at both ends of the upper opening of the sliding hole 11. A claw groove is formed on the inner side of the lower surface of the first retaining strip 13. A second strip-shaped serration is formed on the lower surface of the first retaining strip 13. The side surface of the outer rail 1 also has a first mounting groove 12 that runs through both sides. The first mounting groove 12 is located below the sliding hole 11. The outer rail 1 has third strip-shaped serrations on both sides of the opening of the first mounting groove 12. The first strip-shaped serrations and the third strip-shaped serrations are adapted to each other. The second vertical section 325 is connected to the first mounting groove 12 by a second bolt.

[0048] The second bolt includes a second head, a second connecting portion and a second nut. The second head is locked in the first mounting groove 12, the second connecting portion is connected to the surface of the second head, and the second connecting portion extends out of the first mounting groove 12 and passes through the second strip locking hole 3251 to be connected to the second nut.

[0049] The outer card rail fitting 4 includes a first sliding frame 41, a first connecting plate 42, and a third bolt. The first connecting plate 42 has a first threaded hole extending therethrough. The lower surface of the first connecting plate 42 has two first abutting plates 421. The two first abutting plates 421 are located on either side of the first threaded hole. The first abutting plates 421 are perpendicular to the lower surface of the first connecting plate 42.

[0050] The first sliding frame 41 includes a first locking plate 411 and two first supporting legs 412, the two first supporting legs 412 are connected on both sides of the lower surface of the first locking plate 411, the first locking plate 411 has a first connecting hole, and the two first supporting legs 412 have two first protrusions 4121 on the inward side, and the two first protrusions 4121 are arranged at intervals; a protruding claw 4121 is formed on one side of the upper surface of the first protrusion 4121 located below, and two L-shaped placing plates 413 are formed on the lower surface of the locking plate, and the extending ends of the two L-shaped placing plates 413 are arranged opposite to each other and are located on both sides of the connecting hole, and a third nut is provided between the L-shaped placing plates 413, and the third bolt passes through the first threaded hole, the first connecting hole and the third nut.

[0051] The inner card track fitting includes a second sliding frame 5; an inner card track fitting; 51, a second connecting plate 52, a stabilizing seat 53 and a fourth bolt 54, the second connecting plate 52 has a first threaded hole extending from top to bottom, an extension plate 521 extending downward is formed on one side of the second connecting plate 52, and an inclined plate 5211 is provided at the end of the extension plate 521; the inclined plate 5211 has a fourth strip-shaped serration on its inward side; the stabilizing seat 53 includes a stabilizing plate 531 and an inclined matching plate 532, the stabilizing plate 531 has a second threaded hole, the inclined matching plate 532 is connected to one side of the stabilizing plate 531, the inclined matching plate 532 has the same inclination direction and angle as the inclined plate 5211, and the inclined matching plate 532 has a fifth strip-shaped serration on its outward side, and the fourth strip-shaped serration is adapted to the fifth strip-shaped serration;

[0052] The second sliding frame 5; the inner locking rail fitting; 51 includes a second locking plate 511 and two second legs. The two second legs are connected to both sides of the lower surface of the second locking plate 511. The second locking plate 511 has a second connecting hole. The outward-facing side of the two legs has two second protrusions 5121, which are spaced apart. Specifically, the upper surface of the second locking plate 511 is provided with a left latch 5112 and a right latch 5113. Specifically, the stabilizing plate 531 is locked between the left latch 5112 and the right latch 5113, limiting the vertical movement of the stabilizing plate 531. A second protrusion 5111 is formed on the side facing the second legs. A fourth nut is provided between the second protrusion 5111 and the locking plate. The fourth bolt 54 passes through the first threaded hole, the connecting hole, and the fourth nut. The upper surface of the second protrusion 5121 located below has a sixth serration, which matches the second serration.

[0053] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional bracket, characterized in that: It includes four outer rails, multiple transverse rails, multiple rail support assemblies, outer clamping rail fittings and inner clamping rail fittings. The four outer rails are connected head to tail and distributed in a square. Multiple transverse rails are located on the inner side of the four outer rails and are arranged at intervals. Multiple transverse rails are parallel. The outer rails and transverse rails are connected to multiple rail support assemblies below. The bottom of the rail support assembly is fixedly connected to the plane to be connected. The transverse rails are provided with outer clamping rail fittings and inner clamping rail fittings. The outer rails are provided with outer clamping rail fittings. The outer clamping rail fittings and the inner clamping rail fittings can be connected to the plate to be connected above.

2. The multifunctional bracket according to claim 1, characterized in that: The rail support assembly includes a hook base and a hook assembly, the hook base includes a fixed portion and an inclined limiting sliding portion, the fixed portion is connected to one side of the inclined limiting sliding portion, the inclined limiting sliding portion is an inclined surface facing upward, and the inclined surface is inclined downward from the outside toward the upper surface of the fixed portion, the upper surface of the inclined surface has a sliding groove, the two sides of the sliding groove pass through the inclined limiting sliding portion, the upper surface of the inclined surface has a plurality of first ridges arranged at equal intervals, and the length direction of the first ridge corresponds to the length direction of the sliding groove; The hook assembly includes an inclined locking section, a first horizontal section, a first vertical section, a second horizontal section, a second vertical section and a first bolt, the back of the inclined locking section having a plurality of spaced-apart clips, the inclined locking section having a first strip-shaped locking hole, the first horizontal section being connected to the upper end of the inclined locking section and facing outward, the first vertical section being connected to the end of the first horizontal section, the second horizontal section being connected to the end of the first vertical section and facing inward, the second vertical section being connected to the end of the second horizontal section, two corresponding surfaces of the first vertical section, the second horizontal section and the second vertical section being provided with a first strip-shaped serration, and the second vertical section having a second strip-shaped locking hole provided up and down; The first protruding strip of the tilt-limiting sliding portion and the clamping strip of the tilt-locking section are adapted to each other and connected by a first bolt; The first bolt includes a first head, a first connecting portion and a first nut. The first head is locked in the sliding groove. The first connecting portion is connected to the surface of the first head. The first connecting portion extends out of the sliding groove and passes through the first strip locking hole to be connected to the first nut.

3. The multifunctional bracket according to claim 2, characterized in that: The outer rail and the transverse rail have the same structure, the outer rail has a sliding hole that passes through the upper surface and two side surfaces, the first locking strips extend outward at both ends of the upper opening of the sliding hole, and the second locking strips extend inward at both ends of the upper opening of the sliding hole, a claw groove is formed on the inner side of the lower surface of the first locking strip, and a second strip-shaped serration is formed on the lower surface of the first locking strip. The side surface of the outer rail also has a first mounting groove that passes through both sides, the first mounting groove is located below the sliding hole, and the outer rail has third strip-shaped serrations on both sides of the opening of the first mounting groove, the first strip-shaped serrations and the third strip-shaped serrations are adapted to each other, and the second vertical section is connected to the first mounting groove by a second bolt; The second bolt includes a second head, a second connecting portion and a second nut. The second head is locked in the first mounting groove, the second connecting portion is connected to the surface of the second head, and the second connecting portion extends out of the first mounting groove and passes through the second strip locking hole to be connected to the second nut.

4. A multifunctional bracket according to claim 3, characterized in that: The outer card track fitting includes a first sliding frame, a first connecting plate and a third bolt. The first connecting plate has a first threaded hole extending vertically therethrough. The lower surface of the first connecting plate has two first abutting plates, which are located on both sides of the first threaded hole and are perpendicular to the lower surface of the first connecting plate. The first sliding frame includes a first locking plate and two first legs, the two first legs are connected to both sides of the lower surface of the first locking plate, the first locking plate has a first connecting hole, the two first legs have two first protrusions on the inward side, and the two first protrusions are arranged at intervals; a protruding claw is formed on one side of the upper surface of the first protrusion located below.

5. The multifunctional bracket according to claim 4, characterized in that: Two L-shaped placement plates are formed on the lower surface of the locking plate, and the extended ends of the two L-shaped placement plates are arranged opposite to each other and located on both sides of the connecting hole. A third nut is provided between the L-shaped placement plates, and the third bolt passes through the first threaded hole, the connecting hole and the third nut.

6. The multifunctional bracket according to claim 3, characterized in that: The inner card rail matching member includes a second sliding frame, a second connecting plate, a stable seat and a fourth bolt, the second connecting plate has a first threaded hole extending up and down, an extension plate extending downward is formed on one side of the second connecting plate, and the end of the extension plate has an inclined plate; the inclined plate has a fourth strip serration on the inward side; the stable seat includes a stable plate and an inclined matching plate, the stable plate has a second threaded hole, the inclined matching plate is connected to one side of the stable plate, the inclined matching plate has the same inclination direction and angle as the inclined plate, and the inclined matching plate has a fifth strip serration on the outward side, and the fourth strip serration is adapted to the fifth strip serration; The second sliding frame includes a second locking plate and two second legs, the two second legs are connected to both sides of the lower surface of the second locking plate, the second locking plate has a second connecting hole, and the outward side of the two legs has two second protrusions, and the two second protrusions are arranged at intervals.

7. The multifunctional bracket according to claim 6, characterized in that: A second protrusion is formed on one side of the second legs facing each other, a fourth nut is provided between the second protrusion and the locking plate, and the fourth bolt passes through the first threaded hole, the second connecting hole and the fourth nut.

8. The multifunctional bracket according to claim 6, characterized in that: One side of the upper surface of the second protrusion located below is provided with a sixth strip-shaped sawtooth, and the sixth strip-shaped sawtooth is adapted to the second strip-shaped sawtooth.

9. The multifunctional bracket according to claim 2, characterized in that: The sliding groove includes a first locking sliding portion and a second locking sliding portion, the second locking sliding portion is located on the inner side of the first locking sliding portion, the first locking sliding portion includes a first extending portion and a first locking portion, the second locking sliding portion includes a second extending portion and a second locking portion, the opening of the second extending portion is located at the bottom of the groove of the first locking portion, and the opening width of the second extending portion is smaller than the width of the first locking portion.

10. The multifunctional bracket according to claim 2, characterized in that: The upper surface of the fixing portion is provided with a plurality of through holes, which are arranged in two rows. Adjacent through holes in each row are arranged at equal intervals. The upper surface of the fixing portion is provided with a processed long groove, and the axis of the processed long groove coincides with the axis of the through holes in the same row.

Images