CN215670900U - Support frame convenient to installation - Google Patents

Abstract

The utility model discloses a supporting frame convenient to mount, which comprises a mounting table (1), a first connecting block (6), a top plate (7), a top plate heightening assembly, a mounting block (8), a mounting plate (9), a mounting locking assembly, a connecting ladder assembly and a connecting ladder locking assembly, wherein the first connecting block is arranged on the mounting table; the top plate heightening assembly is connected with the mounting table and the first connecting block and can drive the first connecting block to lift; the top of the first connecting block is provided with an installation plate, the installation block is arranged at the bottom of the top plate, and the installation block is locked on the installation plate through an installation locking assembly; the connecting ladder assembly is slidably embedded in the shifting-out groove of the top plate, the connecting ladder locking assemblies are arranged on the top plate and located at two ends of the shifting-out groove, and one end of the connecting ladder assembly is in locking connection with one group of the connecting ladder locking assemblies. The top plate and the mounting table can be simply and conveniently mounted, the mounting is stable and reliable, the top plate can be conveniently used by arranging the connecting ladder, and the practicability and the safety of the support frame are improved.

Description

Support frame convenient to installation

Technical Field

The utility model relates to building construction auxiliary equipment, in particular to a support frame convenient to mount.

Background

The building is a structure built by people with materials such as soil, stone, wood, steel and the like, and the urban construction is an important component of urban management. During the building construction of a building, the support frame is important equipment for assisting high-altitude operation, and comprises a fixed support such as a scaffold and a movable support such as a ladder stand so as to meet different construction and use requirements. Wherein, the use of portable support frame is comparatively frequent, but prior art's portable support frame altitude mixture control scope is little, and adjusts the operation inconveniently, and the support frame top need install the roof as operation platform simultaneously, but the roof installation is comparatively inconvenient, influences the use of support frame to operating personnel's work efficiency has been influenced.

Disclosure of Invention

The utility model aims to provide the supporting frame convenient to mount, the top plate and the mounting table can be simply and conveniently mounted, the mounting is stable and reliable, and meanwhile, the connecting ladder is arranged to facilitate the use of the top plate, so that the practicability and the safety of the supporting frame are improved.

The utility model is realized by the following steps:

a supporting frame convenient to mount comprises a mounting table, a first connecting block, a top plate height-adjusting assembly, a mounting block, a mounting plate, a mounting locking assembly, a connecting ladder assembly and a connecting ladder locking assembly; the lower end of at least one group of top plate heightening assemblies is movably connected with the mounting table, a plurality of first connecting blocks are symmetrically mounted at the top of at least one group of top plate heightening assemblies, and the top of each top plate heightening assembly can ascend and descend up and down and drive the first connecting blocks to ascend and descend synchronously; the top of each first connecting block is provided with an installation plate, a plurality of installation blocks are installed at the bottom of the top plate at intervals, and each installation block is correspondingly installed on the installation plate through an installation locking assembly and locked; a moving-out groove is formed in the top plate, the moving-out groove penetrates through one side end face of the top plate, the connecting ladder assembly is embedded in the moving-out groove, and the connecting ladder assembly horizontally slides in the moving-out groove and moves out of the top plate; a pair of connecting ladder locking assemblies are respectively installed on the top plate and located at two ends of the moving-out groove, and one end of each connecting ladder assembly is in locking connection with one group of connecting ladder locking assemblies.

Each group of top plate height-adjusting components comprises a bidirectional screw rod, a pair of first supporting blocks and a pair of supporting rods; a screw rod installation groove is formed in the mounting table and penetrates through the side end face of the mounting table, so that the bidirectional screw rod is embedded in the screw rod installation groove, and one end of the bidirectional screw rod extends to the outside of the mounting table; the top of the mounting platform is provided with a sliding groove communicated with the screw rod mounting groove, two ends of the bidirectional screw rod respectively penetrate through the pair of first supporting blocks, the bidirectional screw rod is screwed with the first supporting blocks in a threaded manner, and the other ends of the pair of first supporting blocks respectively extend to the upper part of the mounting platform through the sliding groove; the pair of support rods are connected in a rotatable mode through the rotating shaft to form an X-shaped structure, the lower ends of the pair of support rods are connected to the other ends of the pair of first support blocks through the bearing seats in a rotatable mode respectively, and the upper ends of the pair of support rods are connected to the pair of first connecting blocks through the bearing seats in a rotatable mode respectively.

And a turntable handle is arranged at one end of the bidirectional screw rod, which is positioned outside the mounting table.

The mounting and locking assembly comprises a limiting groove, a limiting block, an unlocking block, a clamping column and an elastic clamping assembly; a limiting groove is formed at the top of the mounting plate, the limiting block is fixedly connected to the bottom of the mounting block, and the limiting block can be embedded in the limiting groove in a matched mode, so that the mounting block is positioned and mounted on the mounting plate; an unlocking groove is formed at the top of the mounting plate and is positioned beside the limiting groove, and the unlocking block is embedded in the unlocking groove and can horizontally slide along the unlocking groove; a clamping groove is formed in the limiting block, a clamping column sliding groove is formed in the mounting plate, and the clamping column sliding groove is communicated with the limiting groove and can be communicated with the clamping hole; the elasticity joint subassembly inlays the dress in the mounting panel, and the one end and the unblock piece of elasticity joint subassembly are connected, and the other end and the one end of joint post of elasticity joint subassembly are connected, and the joint post can slide along joint post sliding tray through elasticity joint subassembly, makes the other end of joint post insert in the joint inslot.

The elastic clamping component comprises a supporting spring, a second supporting block, a fixed spring and a connecting rope; a guide groove communicated with the clamping column sliding groove is formed in the mounting plate, so that the large end of the clamping column of the T-shaped structure is inserted into the guide groove, a rope groove communicated with the guide groove and the unlocking groove is formed in the mounting plate, the rope groove and the clamping column sliding groove are positioned at two ends of the guide groove, and the guide groove, the rope groove and the clamping column sliding groove are coaxially arranged; one end of the connecting rope is connected with the big end of the clamping column, and the other end of the connecting rope penetrates through the guide groove and the rope groove and is connected with the unlocking block; the fixed spring is arranged in the guide groove and is sleeved on the connecting rope, and two ends of the fixed spring are respectively connected to the large end of the clamping column and the inner wall of the guide groove; a supporting groove communicated with the unlocking groove is formed in the mounting plate, the second supporting block is embedded in the supporting groove and can slide along the supporting groove, and the second supporting block is fixedly connected to the bottom of the unlocking block; the supporting spring is embedded in the supporting groove, and two ends of the supporting spring are connected to the inner wall of the supporting groove and the second supporting block.

The connecting ladder assembly comprises a first connecting ladder, a sliding block and a second connecting ladder; the bottom of the first connecting ladder is provided with a sliding chute arranged along the length direction of the first connecting ladder, a sliding block is embedded in the sliding chute and can slide along the sliding chute, and the sliding block is fixedly connected to one end of the top of the second connecting ladder, so that the second connecting ladder and the first connecting ladder can relatively slide and stretch; one end of the first connecting ladder is connected with the connecting ladder locking assembly.

The connecting ladder locking assembly comprises a moving block, a second connecting block, a connecting column and a clamping assembly; the movable block is rotatably connected to one end of the first connecting ladder, a connecting groove communicated with the shifting-out groove is formed in the top plate, the second connecting block is embedded in the connecting groove and can slide along the connecting groove, and the second connecting block is fixedly connected with the movable block and synchronously slides; the top of second connecting block is formed with the draw-in groove, and the one end of spliced pole is inserted in the draw-in groove, is formed with the fixed slot with the draw-in groove intercommunication in the mount table, and the other end of spliced pole extends to the mount table top along the fixed slot, and the spliced pole passes through the chucking of chucking subassembly chucking in the fixed slot.

The clamping assembly comprises a connecting spring, the connecting spring is arranged in the fixed groove and sleeved on the connecting column, and one end of the connecting spring is fixedly connected on the connecting column and abuts against the inner wall of the top of the fixed groove.

The bottom of spliced pole be formed with the fixed block, the fixed block can match to inlay the dress in the draw-in groove, the cross-section of fixed block and draw-in groove is wide right trapezoid structure down, and right trapezoid's hypotenuse sets up towards the spread groove slope.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the supporting rods, the first supporting block and the first connecting ladder are arranged, the first supporting block is driven to move towards the middle part of the mounting table when the bidirectional screw rod rotates, so that one end of each of the two supporting rods pushes the top plate to move upwards, the height of the top plate can be quickly and conveniently adjusted, the second connecting ladder and the first connecting ladder can be drawn out, operators can conveniently climb the top plates with different heights, and the mounting and use of the utility model can be more convenient.

2. According to the support frame, the fixing spring, the clamping column and the clamping groove are arranged, an operator releases the unlocking block, the fixing spring pushes one end of the clamping column to extend into the clamping groove, the top plate can be fixed, the top plate can be installed conveniently, and therefore the support frame is convenient to install.

Drawings

FIG. 1 is a cross-sectional view of the support bracket of the present invention for ease of installation;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at D;

FIG. 4 is a front view of the attachment ladder assembly of the support bracket of the present invention for ease of installation;

FIG. 5 is a schematic view of the mounting block and mounting plate of the support bracket of the present invention for ease of installation;

FIG. 6 is a partial enlarged view at B in FIG. 5;

fig. 7 is a partial enlarged view at C in fig. 5.

In the figure, 1, a mounting table; 2. a bidirectional screw rod; 3. a first support block; 5. a support bar; 6. a first connection block; 7. a top plate; 8. mounting blocks; 9. mounting a plate; 10. moving out of the groove; 11. a moving block; 12. a first connecting ladder; 13. a chute; 14. a slider; 15. a second connecting ladder; 16. connecting grooves; 17. a second connecting block; 18. a card slot; 19. fixing grooves; 20. a fixed block; 21. connecting columns; 22. a connecting spring; 23. a limiting block; 24. a limiting groove; 25. unlocking the groove; 26. unlocking the block; 27. a support groove; 28. a support spring; 29. a second support block; 30. a guide groove; 31. fixing the spring; 32. a clamping column; 33. a clamping groove; 34 rope grooves, 35 connecting ropes and 36 rotating disc handles.

Detailed Description

The utility model is further described with reference to the following figures and specific examples.

Referring to fig. 1, a supporting frame convenient to mount comprises a mounting table 1, a first connecting block 6, a top plate 7, a top plate height-adjusting assembly, a mounting block 8, a mounting plate 9, a mounting locking assembly, a connecting ladder assembly and a connecting ladder locking assembly; the lower ends of at least one group of top plate heightening assemblies are movably connected with the mounting table 1, a plurality of first connecting blocks 6 are symmetrically mounted at the tops of at least one group of top plate heightening assemblies, and the tops of the top plate heightening assemblies can ascend and descend up and down and drive the first connecting blocks 6 to ascend and descend synchronously; the top of each first connecting block 6 is provided with an installation plate 9, a plurality of installation blocks 8 are installed at the bottom of the top plate 7 at intervals, and each installation block 8 is correspondingly installed on the installation plate 9 through an installation locking assembly and locked; a moving-out groove 10 is formed in the top plate 7, the moving-out groove 10 penetrates through one side end face of the top plate 7, the connecting ladder assembly is embedded in the moving-out groove 10, and the connecting ladder assembly horizontally slides in the moving-out groove 10 and moves out of the top plate 7; a pair of connecting ladder locking assemblies are respectively arranged on the top plate 7 and positioned at two ends of the moving-out groove 10, and one end of each connecting ladder assembly is in locking connection with one group of connecting ladder locking assemblies. The mountable of mount table 1 needs to set up the position of support frame at the job site, and roof 7 can be adjusted high subassembly through the roof and at the quick height-adjusting in mount table 1 top and locking, ensures the security of roof 7. Meanwhile, the connecting ladder assembly which is locked to extend out or retract is used for ensuring safe use and storage of the connecting ladder assembly.

Referring to fig. 1, each set of top plate height-adjusting components includes a bidirectional screw rod 2, a pair of first supporting blocks 3 and a pair of supporting rods 5; a screw rod installation groove is formed in the installation platform 1 and penetrates through the side end face of the installation platform 1, so that the bidirectional screw rod 2 is embedded in the screw rod installation groove, and one end of the bidirectional screw rod 2 extends to the outside of the installation platform 1; the top of the mounting table 1 is provided with a sliding groove communicated with the screw rod mounting groove, two ends of the bidirectional screw rod 2 respectively penetrate through the pair of first supporting blocks 3, the bidirectional screw rod 2 is screwed with the first supporting blocks 3, and the other ends of the pair of first supporting blocks 3 respectively extend to the upper part of the mounting table 1 through the sliding groove; the pair of support rods 5 are rotatably connected through a rotating shaft to form an X-shaped structure, the lower ends of the pair of support rods 5 are rotatably connected to the other ends of the pair of first support blocks 3 through bearing seats respectively, and the upper ends of the pair of support rods 5 are rotatably connected to the pair of first connecting blocks 6 through bearing seats respectively. The thread direction on the bidirectional screw rod 2 is symmetrical about the center of the bidirectional screw rod 2, and a pair of first supporting blocks 3 on the bidirectional screw rod 2 can move in opposite directions to be close to or away from each other, so that the telescopic function of an X-shaped structure is ensured, and the lifting function of a top plate 7 is realized. According to the bearing requirement of the top plate 7 and the use requirement of the connecting ladder assembly, a pair of top plate height-adjusting assemblies or more top plate height-adjusting assemblies can be symmetrically arranged between the mounting platform 1 and the top plate 7.

And a turntable handle 36 is arranged at one end of the bidirectional screw rod 2 positioned outside the mounting table 1, so that the rotation of the bidirectional screw rod 2 is controlled conveniently.

Referring to fig. 5 to 7, the mounting and locking assembly includes a limiting groove 23, a limiting block 24, an unlocking block 26, a clamping column 32 and an elastic clamping assembly; a limiting groove 23 is formed at the top of the mounting plate 9, a limiting block 24 is fixedly connected to the bottom of the mounting block 8, and the limiting block 24 can be embedded in the limiting groove 23 in a matching manner, so that the mounting block 8 is positioned and mounted on the mounting plate 9; an unlocking groove 25 is formed at the top of the mounting plate 9 and is positioned beside the limiting groove 23, and an unlocking block 26 is embedded in the unlocking groove 25 and can horizontally slide along the unlocking groove 25; a clamping groove 33 is formed in the limiting block 24, a clamping column sliding groove is formed in the mounting plate 9, and the clamping column sliding groove is communicated with the limiting groove 23 and can be communicated with the clamping hole; the elasticity joint subassembly inlays and is established in mounting panel 9, and the one end of elasticity joint subassembly is connected with unblock piece 26, and the other end of elasticity joint subassembly is connected with the one end of joint post 32, and joint post 32 can slide along joint post sliding tray through elasticity joint subassembly, makes the other end of joint post 32 insert in joint groove 33. The installation block 8 and the installation plate 9 can be locked through the insertion of the clamping columns 32, the locking is reliable and convenient, and the operation is convenient. The number of the installation locking assemblies can be adjusted according to the requirement of locking strength, and the installation locking assemblies can be symmetrically arranged on two sides or four sides of the installation block 8.

Referring to fig. 5 to 7, the elastic clamping assembly includes a supporting spring 28, a second supporting block 29, a fixing spring 31 and a connecting rope 35; a guide groove 30 communicated with the clamping column sliding groove is formed in the mounting plate 9, so that the large head end of a clamping column 32 of a T-shaped structure is inserted into the guide groove 30, a rope groove 34 communicated with the guide groove 30 and the unlocking groove 25 is formed in the mounting plate 9, the rope groove 34 and the clamping column sliding groove are positioned at two ends of the guide groove 30, and the guide groove 30, the rope groove 34 and the clamping column sliding groove are coaxially arranged; one end of the connecting rope 35 is connected with the large head end of the clamping column 32, and the other end of the connecting rope 35 penetrates through the guide groove 30 and the rope groove 34 and is connected with the unlocking block 26; the fixed spring 31 is arranged in the guide groove 30 and sleeved on the connecting rope 35, and two ends of the fixed spring 31 are respectively connected to the large end of the clamping column 32 and the inner wall of the guide groove 30; a supporting groove 27 communicated with the unlocking groove 25 is formed in the mounting plate 9, a second supporting block 29 is embedded in the supporting groove 27 and can slide along the supporting groove 27, and the second supporting block 29 is fixedly connected to the bottom of the unlocking block 26; the support spring 28 is fitted into the support groove 27, and both ends of the support spring 28 are connected to the inner wall of the support groove 27 and the second support block 29. The connection and pulling of the clamping column 32 are realized through the connecting rope 35, and the clamping column is reset under the elastic force action of the supporting spring 28 and the fixing spring 31, so that the mechanical structure is simple to operate and reliable in locking.

Referring to fig. 3 and 4, the connecting ladder assembly includes a first connecting ladder 12, a slider 14 and a second connecting ladder 15; a sliding groove 13 arranged along the length direction of the first connecting ladder 12 is formed at the bottom of the first connecting ladder 12, a sliding block 14 is embedded in the sliding groove 13 and can slide along the sliding groove 13, and the sliding block 14 is fixedly connected to one end of the top of a second connecting ladder 15, so that the second connecting ladder 15 and the first connecting ladder 12 can relatively slide and stretch; one end of the first connecting ladder 12 is connected to a connecting ladder locking assembly. The number of the connecting ladders can be determined according to the height of the top plate 7 and the use requirement so as to meet the use requirement of the connecting ladders.

Referring to fig. 1 and 2, the connecting ladder locking assembly includes a moving block 11, a second connecting block 17, a connecting column 21 and a clamping assembly; the moving block 11 is rotatably connected to one end of the first connecting ladder 12, a connecting groove 16 communicated with the shift-out groove 10 is formed in the top plate 7, the second connecting block 17 is embedded in the connecting groove 16 and can slide along the connecting groove 16, and the second connecting block 17 is fixedly connected with the moving block 11 and synchronously slides; the top of second connecting block 17 is formed with draw-in groove 18, and the one end of spliced pole 21 is inserted in draw-in groove 18, is formed with the fixed slot 19 with draw-in groove 18 intercommunication in the mount table 1, and the other end of spliced pole 21 extends to mount table 1 top along fixed slot 19, and spliced pole 21 passes through the chucking subassembly chucking in fixed slot 19. All set up the connection ladder locking Assembly in the inner and the outer end that shift out groove 10, can realize the locking of accomodating of connecting ladder subassembly when connecting ladder subassembly and moving into shift out groove 10 completely, realize the use locking to connecting ladder subassembly when connecting ladder subassembly and moving out shift out groove 10 completely, ensure the use of connecting ladder subassembly and accomodate safety. The quantity of the connecting ladder locking assemblies can be adjusted according to the size of the connecting ladder assemblies, and the connecting ladder locking assemblies can be arranged on two sides of the end parts of the connecting ladder assemblies, so that reliable locking of the connecting ladder assemblies is ensured. The first connecting ladder 12 and the moving block 11 can be rotatably connected through a rotating shaft, so that the first connecting ladder 12 and the second connecting ladder 15 can be erected between the ground and the top plate 7 after being extended, and a person can conveniently climb onto the top plate 7.

Referring to fig. 2, the clamping assembly includes a connection spring 22, the connection spring 22 is disposed in the fixing groove 19 and sleeved on the connection post 21, and one end of the connection spring 22 is fixedly connected to the connection post 21 and abuts against the inner wall of the top of the fixing groove 19. The locking reliability between the connection post 21 and the fixing groove 19 can be further ensured by the elastic force of the connection spring 22.

Referring to fig. 2, a fixing block 20 is formed at the bottom of the connecting column 21, the fixing block 20 can be embedded in the slot 18 in a matching manner, the cross sections of the fixing block 20 and the slot 18 are in a right-angled trapezoid structure with a wide upper part and a narrow lower part, and the inclined side of the right-angled trapezoid is inclined towards the connecting slot 16, so that the second connecting block 17 is locked by the connecting column 21, the fixing block 20 is conveniently clamped into the slot 18, and the second connecting block is prevented from being loosened.

When the mounting platform is used, an operator fixes the mounting platform 1 on the ground, and then aligns the limiting block 24 at the bottom of the mounting block 8 with the limiting groove 23 on the mounting plate 9. Unlocking piece 26 is pulled along unlocking groove 25 for unlocking piece 26 drives and connects rope 35 to remove, makes and connects rope 35 to drive the major part end of joint post 32 and move to the inside of guide way 30, and fixed spring 31 is compressed this moment, pushes stopper 24 to limiting groove 23 inside, can install the roof at roof height-adjusting subassembly top. The unlocking block 26 is released, the fixing spring 31 resets and pushes one end of the clamping column 32 to extend into the clamping groove 33, the mounting block 8 and the mounting plate 9 are locked, and the top plate 7 is fixed.

The rotary table handle 36 is rotated to drive the bidirectional screw rod 2 to rotate, under the limitation of the sliding groove, the pair of first supporting blocks 3 can only slide linearly along the sliding groove, and the rotary motion of the bidirectional screw rod 2 is converted into the linear motion of the first supporting blocks 3 by utilizing the threaded connection between the bidirectional screw rod 2 and the first supporting blocks 3, so that the pair of first supporting blocks 3 respectively move towards the middle of the mounting table 1 to be close to, and one end of the pair of supporting rods 5 pushes the top plate 7 to move upwards. Similarly, the top plate 7 can be lowered by rotating the dial grip 36 in the reverse direction, which will not be described in detail herein. The bidirectional screw rod 2 is connected with the first supporting block 3 through screw thread rotation, and by utilizing the meshing self-locking function of the screw thread, the bidirectional screw rod 2 and the first supporting block 3 cannot slide accidentally, so that the safety of height adjustment and supporting functions is ensured.

The connecting column 21 located at the inner end of the moving groove 10 is pulled upwards, the connecting column 21 drives one end of the fixing block 20 to be separated from the clamping groove 18, the second connecting ladder 15 can be pulled outwards to slide out of the moving groove 10, and under the action of the sliding groove 13, the sliding block 14, the connecting groove 16 and the second connecting block 17, the second connecting ladder 15 drives the first connecting ladder 12 to slide out of the moving groove 10 until the moving block 11 is moved to the outside of the moving groove 10. The connecting column 21 positioned at the outer end of the moving groove 10 is pulled upwards, the connecting spring 22 arranged on the connecting column 21 is compressed at the moment, the second connecting block 17 on the moving block 11 moves to the position below the connecting column 21, the connecting column 21 is loosened, the fixing block 20 is pushed to move downwards and extend into the clamping groove 18 under the elastic force action of the connecting spring 22, the position of the first connecting ladder 12 is fixed, and an operator can use the support frame.

The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a support frame convenient to installation, characterized by: the device comprises an installation table (1), a first connecting block (6), a top plate (7), a top plate height-adjusting assembly, an installation block (8), an installation plate (9), an installation locking assembly, a connecting ladder assembly and a connecting ladder locking assembly; the lower end of at least one group of top plate heightening assemblies is movably connected with the mounting table (1), a plurality of first connecting blocks (6) are symmetrically mounted at the top of at least one group of top plate heightening assemblies, and the top of each top plate heightening assembly can be lifted up and down and drives the first connecting blocks (6) to be lifted up and down synchronously; the top of each first connecting block (6) is provided with an installation plate (9), a plurality of installation blocks (8) are installed at the bottom of the top plate (7) at intervals, and each installation block (8) is correspondingly installed on the installation plate (9) through an installation locking assembly and locked; a moving-out groove (10) is formed in the top plate (7), the moving-out groove (10) penetrates through one side end face of the top plate (7), the connecting ladder assembly is embedded in the moving-out groove (10), and the connecting ladder assembly horizontally slides in the moving-out groove (10) and moves out of the top plate (7); a pair of connecting ladder locking assemblies are respectively arranged on the top plate (7) and positioned at two ends of the moving-out groove (10), and one end of each connecting ladder assembly is in locking connection with one group of connecting ladder locking assemblies.

2. A support bracket as claimed in claim 1, which is adapted to be mounted on: each group of top plate heightening assemblies respectively comprise a bidirectional screw rod (2), a pair of first supporting blocks (3) and a pair of supporting rods (5); a screw rod installation groove is formed in the installation platform (1), and penetrates through the side end face of the installation platform (1), so that the bidirectional screw rod (2) is embedded in the screw rod installation groove, and one end of the bidirectional screw rod (2) extends to the outside of the installation platform (1); the top of the mounting table (1) is provided with a sliding groove communicated with the screw rod mounting groove, two ends of the bidirectional screw rod (2) respectively penetrate through the pair of first supporting blocks (3), the bidirectional screw rod (2) is in threaded connection with the first supporting blocks (3), and the other ends of the pair of first supporting blocks (3) respectively extend to the upper part of the mounting table (1) through the sliding groove; the pair of support rods (5) are connected in a rotatable mode through a rotating shaft to form an X-shaped structure, the lower ends of the pair of support rods (5) are connected to the other ends of the pair of first support blocks (3) in a rotatable mode through bearing seats respectively, and the upper ends of the pair of support rods (5) are connected to the pair of first connecting blocks (6) in a rotatable mode through bearing seats respectively.

3. A support bracket as claimed in claim 2, wherein: and a turntable handle (36) is arranged at one end of the bidirectional screw rod (2) positioned outside the mounting table (1).

4. A support bracket as claimed in claim 1, which is adapted to be mounted on: the mounting and locking assembly comprises a limiting groove (23), a limiting block (24), an unlocking block (26), a clamping column (32) and an elastic clamping assembly; a limiting groove (23) is formed at the top of the mounting plate (9), the limiting block (24) is fixedly connected to the bottom of the mounting block (8), and the limiting block (24) can be embedded in the limiting groove (23) in a matching manner, so that the mounting block (8) is positioned and mounted on the mounting plate (9); an unlocking groove (25) is formed at the top of the mounting plate (9) and is positioned beside the limiting groove (23), and an unlocking block (26) is embedded in the unlocking groove (25) and can horizontally slide along the unlocking groove (25); a clamping groove (33) is formed in the limiting block (24), a clamping column sliding groove is formed in the mounting plate (9), and the clamping column sliding groove is communicated with the limiting groove (23) and can be communicated with the clamping hole; the elastic clamping component is embedded in the mounting plate (9), one end of the elastic clamping component is connected with the unlocking block (26), the other end of the elastic clamping component is connected with one end of the clamping column (32), the clamping column (32) can slide along the clamping column sliding groove through the elastic clamping component, and the other end of the clamping column (32) can be inserted into the clamping groove (33).

5. A support bracket as claimed in claim 4, wherein: the elastic clamping component comprises a supporting spring (28), a second supporting block (29), a fixed spring (31) and a connecting rope (35); a guide groove (30) communicated with the clamping column sliding groove is formed in the mounting plate (9), the large end of a clamping column (32) of the T-shaped structure is inserted into the guide groove (30), a rope groove (34) communicated with the guide groove (30) and the unlocking groove (25) is formed in the mounting plate (9), the rope groove (34) and the clamping column sliding groove are located at two ends of the guide groove (30), and the guide groove (30), the rope groove (34) and the clamping column sliding groove are coaxially arranged; one end of the connecting rope (35) is connected with the big head end of the clamping column (32), and the other end of the connecting rope (35) penetrates through the guide groove (30) and the rope groove (34) and is connected with the unlocking block (26); the fixed spring (31) is arranged in the guide groove (30) and sleeved on the connecting rope (35), and two ends of the fixed spring (31) are respectively connected to the large end of the clamping column (32) and the inner wall of the guide groove (30); a supporting groove (27) communicated with the unlocking groove (25) is formed in the mounting plate (9), a second supporting block (29) is embedded in the supporting groove (27) and can slide along the supporting groove (27), and the second supporting block (29) is fixedly connected to the bottom of the unlocking block (26); the supporting spring (28) is embedded in the supporting groove (27), and two ends of the supporting spring (28) are connected to the inner wall of the supporting groove (27) and the second supporting block (29).

6. A support bracket as claimed in claim 1, which is adapted to be mounted on: the connecting ladder assembly comprises a first connecting ladder (12), a sliding block (14) and a second connecting ladder (15); a sliding groove (13) arranged along the length direction of the first connecting ladder (12) is formed at the bottom of the first connecting ladder (12), a sliding block (14) is embedded in the sliding groove (13) and can slide along the sliding groove (13), and the sliding block (14) is fixedly connected to one end of the top of a second connecting ladder (15) so that the second connecting ladder (15) and the first connecting ladder (12) can relatively slide and stretch; one end of the first connecting ladder (12) is connected with a connecting ladder locking assembly.

7. A support bracket as claimed in claim 6, wherein: the connecting ladder locking assembly comprises a moving block (11), a second connecting block (17), a connecting column (21) and a clamping assembly; the moving block (11) is rotatably connected to one end of the first connecting ladder (12), a connecting groove (16) communicated with the moving groove (10) is formed in the top plate (7), the second connecting block (17) is embedded in the connecting groove (16) and can slide along the connecting groove (16), and the second connecting block (17) is fixedly connected with the moving block (11) and can slide synchronously; the top of second connecting block (17) is formed with draw-in groove (18), and the one end of spliced pole (21) is inserted in draw-in groove (18), is formed with fixed slot (19) with draw-in groove (18) intercommunication in mount table (1), and the other end of spliced pole (21) extends to mount table (1) top along fixed slot (19), and spliced pole (21) are through chucking subassembly chucking in fixed slot (19).

8. A support bracket as claimed in claim 7, which is adapted to be mounted on: the clamping assembly comprises a connecting spring (22), the connecting spring (22) is arranged in the fixing groove (19) and sleeved on the connecting column (21), and one end of the connecting spring (22) is fixedly connected to the connecting column (21) and abuts against the inner wall of the top of the fixing groove (19).

9. A support bracket as claimed in claim 7, which is adapted to be mounted on: the bottom of spliced pole (21) be formed with fixed block (20), fixed block (20) can match to inlay and adorn in draw-in groove (18), the cross-section of fixed block (20) and draw-in groove (18) is wide right trapezoid structure narrow down, and the hypotenuse of right trapezoid sets up towards spread groove (16) slope.

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