A supporting truss

Abstract

The present application discloses a support truss, belonging to the field of construction engineering, which includes a first support cross bar and a second support cross bar, a plurality of reinforcing rods are arranged between the first support cross bar and the second support cross bar, one end of a plurality of the reinforcing rods is fixedly connected to the first support cross bar, and the other end of a plurality of the reinforcing rods is fixedly connected to the second support cross bar, a first connecting frame is arranged at the end of the first support cross bar adjacent to the first support cross bar, a second connecting frame is arranged on the adjacent first support cross bar, a plurality of sliding rods are fixedly connected to the first connecting frame and the second connecting frame, a plurality of the sliding rods are respectively inserted into the corresponding first support cross bar, and a first sliding groove for slidingly cooperating with the sliding rod is provided in the first support cross bar. The present application has the effect of improving the efficiency of constructing the formwork support frame and improving the convenience of adjusting the support frame.

Description

Technical Field

[0001] The present application relates to the field of construction engineering, and in particular to a supporting truss. Background Art

[0002] Before pouring concrete on the floor of a building, it is necessary to build a concrete formwork. When building the formwork, the formwork needs to be supported. Generally, steel or wooden beams are assembled into formwork brackets, and steel or wooden poles are used to build scaffolding to support the brackets, and concrete construction is carried out in conjunction with the steel formwork.

[0003] Traditional steel pipe scaffolding supports require a large workload for assembly and construction, have low construction efficiency, are labor-intensive and material-intensive, have poor quality, waste resources, are unsightly, and are difficult to adjust. Summary of the Invention

[0004] In order to improve the efficiency of constructing the formwork support frame and improve the convenience of adjusting the support frame, the present application provides a support truss.

[0005] The support truss provided in this application adopts the following technical solution:

[0006] The cam is connected to the second support rail by a first end and a second end of the first support rail by a second end.

[0007] By adopting the above technical solution, after the fixing component restricts the first supporting cross bar to the steel beam, the operator connects the second connecting frame on the other first supporting cross bar to the first connecting frame, and connects the first connecting frame and the second connecting frame together through the connecting component to support the formwork. At the same time, in order to adapt to formworks with different spans, the operator can control the movement of the sliding rod by adjusting the component, thereby controlling the position of the first connecting frame; by setting the first connecting frame, the second connecting frame and the connecting component, the two first supporting cross bars can be quickly connected together, and rapid dismantling can be achieved, and it is convenient for the operator to transport during dismantling. At the same time, the operator can quickly adjust the support span of the first supporting cross bar by adjusting the component, thereby improving the construction efficiency.

[0008] The first gear is fixedly mounted on the cam frame, and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear.

[0009] By adopting the above technical solution, when the operator connects the two first supporting cross bars, the operator inserts the second connecting frame into the slide seat, the operator rotates the first driving rod, the rotation of the first driving rod causes the first spur gear to rotate, the rotation of the first spur gear causes the first rack to move, the movement of the first rack causes the second connecting frame to move, and the second connecting frame slides in the second slide slot. When the second connecting frame moves to the end of the second slide slot, the first control component causes the first mounting seat to move, the movement of the first mounting seat causes the fixed rod to move, the fixed rod moves and is inserted into the through hole on the second connecting frame, and then the first driving component drives the fixed rod to rotate, the fixed rod rotates and penetrates into the through hole of the second connecting frame, thereby connecting the first connecting frame and the second connecting frame together.

[0010] The first control member is a pair of opposite ends of the second end of the chain which are connected to the second end of the chain which is located adjacent the first control member and the second end of the chain which is located adjacent the first control member.

[0011] By adopting the above technical solution, when the second connecting frame moves to the end of the second slide groove, the second connecting frame abuts against the control rod and pushes the control rod to move, and the control rod moves out of the slot and away from the limit rod. After the limit rod loses the restriction of the control rod, under the action of the control spring, the first mounting seat moves toward the first connecting frame, and the movement of the first mounting seat causes the fixing rod to move, and the fixing rod moves and is inserted into the through hole on the second connecting frame.

[0012] Preferably, the first drive assembly includes a first sprocket and a first transmission chain, the first sprocket is fixedly sleeved on the end of the fixed rod located in the first mounting seat, the first transmission chain is wound around several of the first sprockets, and the first mounting seat is provided with a second drive assembly for driving the fixed rod to rotate.

[0013] By adopting the above technical solution, after the fixing rod is inserted into the through hole on the second connecting frame, the second driving assembly drives the fixing rod to rotate, and the rotation of the fixing rod causes the first sprocket to rotate. Under the action of the first transmission chain, several fixing rods rotate simultaneously, thereby fixing the second connecting frame to the first connecting frame.

[0014] Preferably, the second drive assembly includes a drive shaft, which is fixedly connected to the first drive rod, and a plug-in block is fixedly connected to the first mounting seat, and the drive shaft can pass through the plug-in block. A second sprocket is rotatably installed in the plug-in block, and a third sprocket is fixedly sleeved on the fixed rod. A second transmission chain is wound around the second and third sprockets, and the second sprocket is provided with a slot for plugging and cooperating with the drive shaft.

[0015] By adopting the above technical solution, the second connecting frame pushes the control rod to move the limit rod and the first mounting seat, and the plug-in block follows the movement of the first mounting seat. At this time, the driving shaft passes through the plug-in block and is inserted into the slot on the second sprocket. Since the first rack has just disengaged from the first spur gear at this time, the first driving rod continues to rotate and will not cause the second connecting frame to continue to move. When the first driving rod continues to rotate, the first driving rod rotates to rotate the driving shaft, and the driving shaft rotates to rotate the second sprocket. The second sprocket rotates through the second transmission chain to rotate the third sprocket. The rotation of the third sprocket rotates the fixed rod. The fixed rod rotates through the first sprocket and the first transmission chain to rotate several fixed rods at the same time. Under the action of the fixed rod and the through hole, the fixed rod moves and continues to penetrate the through hole, and at the same time, the first mounting seat continues to move toward the direction of the first connecting frame.

[0016] Preferably, the second control component comprises a reciprocating screw and a pushing block, the reciprocating screw is rotatably mounted on the first connecting frame, the pushing block is sleeved on the reciprocating screw, the pushing block is threadedly engaged with the reciprocating screw, the pushing block can abut against the first mounting seat, and the first connecting frame is provided with a third driving component for driving the reciprocating screw to rotate.

[0017] By adopting the above technical solution, when the second connecting frame needs to be removed from the first connecting frame, the operator rotates the first driving rod in the opposite direction, and the reversal of the first driving rod causes the driving shaft to reverse, and several fixed rods rotate in the opposite direction at the same time, and the fixed rods rotate in the opposite direction and disengage from the through hole of the second connecting frame. When the fixed rod moves to the end of the through hole, continuing to rotate the first driving rod does not make the fixed rod continue to move. At this time, the third driving assembly drives the reciprocating screw to rotate, and the rotation of the reciprocating screw causes the pushing block to move, and the pushing block moves and pushes the first mounting seat to move to its initial position.

[0018] Preferably, the third drive assembly includes a second spur gear and a third spur gear, the second spur gear is fixedly mounted on the first drive rod, an inner ratchet is provided on the reciprocating screw rod, the third spur gear is mounted on the inner ratchet, and a pushing assembly is provided on the first connecting frame to help the second connecting frame move.

[0019] By adopting the above technical solution, when the operator rotates the first driving rod to move the fixed rod, the rotation of the first driving rod causes the second spur gear to rotate, and the rotation of the second spur gear causes the third spur gear to rotate. Under the active action of the inner ratchet, the rotation of the third spur gear cannot cause the reciprocating screw rod to rotate. When the operator needs to move the first mounting seat, the operator rotates the first driving rod in the opposite direction. The rotation of the first driving rod causes the second spur gear to rotate, and the rotation of the second spur gear causes the third spur gear to rotate. The rotation of the third spur gear causes the inner ratchet to rotate, and the rotation of the inner ratchet causes the reciprocating screw rod to rotate, and the rotation of the reciprocating screw rod causes the pushing block to move.

[0020] The first driving rod is reversed to cause the driving shaft to reverse, and the plurality of fixed rods rotate in the opposite direction at the same time. The fixed rods rotate in the opposite direction and disengage from the through-holes of the second connecting frame. When the fixed rods move to the ends of the through-holes, continuing to rotate the first driving rod does not cause the fixed rods to continue to move. After the first driving rod continues to rotate, the reciprocating screw continues to rotate, and the rotation of the reciprocating screw causes the pushing block to move, and the pushing block moves and pushes the first mounting seat to move to its initial position.

[0021] When the first mounting seat moves to the initial position, the pushing assembly pushes the second connecting frame to move. After the control rod is freed from the restriction of the second connecting frame, the control rod moves under the action of the first return spring and is reinserted into the slot on the limit rod, thereby re-restricting the movement of the first mounting seat; the second connecting frame moves and causes the first rack to re-engage with the first spur gear. At this time, the first driving rod continues to be rotated in the opposite direction. The rotation of the first driving rod causes the first spur gear to rotate. The rotation of the first spur gear causes the first rack and the second connecting frame to move, so that the operator can remove the second connecting frame.

[0022] The end portion of the third return spring away from the clamping block is fixedly connected to the inner side wall of the fourth slide groove, and the clamping block abuts against the limit rod, and the end portion of the third return spring away from the push rod is fixedly connected to the inner side wall of the fifth slide groove, and the end portion of the third return spring away from the push rod is fixedly connected to the inner side wall of the fifth slide groove.

[0023] When the second gear is disengaged from the first connecting frame, the second connecting frame pushes the push rod to move, and the push rod moves to cause the blocking block to move. When the action of the inclined surface of the blocking block is small, the blocking block compresses the second return spring, and the blocking block pops out after moving to the initial position. At this time, the blocking block abuts against the limiting rod again, and the limiting rod continues to limit the movement of the blocking block.

[0024] Preferably, the fixing assembly includes a support screw, which is passed through the end of the first support cross bar away from the first connecting frame, a support column is slidably sleeved on the support screw, an adjusting ring is rotatably installed on the support column, the adjusting ring is threadedly engaged with the support screw, an anti-slip plate is fixedly connected to the support screw, and the anti-slip plate is also fixedly connected to the side wall of the support column away from the support screw, a first worm gear is rotatably installed in the first support cross bar, the support screw passes through the first worm gear, the first worm gear is threadedly engaged with the support screw, a first worm is passed through the first support cross bar, and the first worm and the first worm gear are meshed with each other.

[0025] By adopting the above technical solution, when the operator needs to fix the first support cross bar on the steel beam, the operator moves the support screw into the steel beam groove and rotates the adjusting ring. The rotation of the adjusting ring causes the support screw to slide in the support column, and the anti-slip plate is tightly attached to the inner wall of the steel beam groove. When the operator needs to adjust the height of the first support cross bar, the operator rotates the first worm. The rotation of the first worm causes the first worm wheel to rotate. The rotation of the first worm wheel causes the position of the first support cross bar to change, thereby adjusting the height of the first support cross bar.

[0026] Preferably, the adjustment assembly includes an adjusting screw, which is rotatably installed in the first supporting cross bar corresponding to the first connecting frame, and the adjusting screw passes through the sliding rod. The adjusting screw is threadedly engaged with the sliding rod, and a second worm is passed through the first supporting cross bar. A second worm gear is fixedly sleeved on the adjusting screw, and the second worm and the second worm gear are engaged with each other.

[0027] By adopting the above technical solution, when the operator needs to adjust the position of the first connecting frame, the operator rotates the second worm, the rotation of the second worm causes the second worm wheel to rotate, the rotation of the second worm wheel causes the adjustment screw to rotate, the rotation of the adjustment screw causes the sliding rod to move, and the movement of the sliding rod causes the first connecting frame to move.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By setting up the first connecting frame, the second connecting frame and the connecting assembly, the two first supporting cross bars can be quickly connected together, and at the same time, they can be quickly dismantled and easily transported by operators during dismantling. At the same time, the operator can quickly adjust the support span of the first supporting cross bar through the adjustment assembly, thereby improving the construction efficiency;

[0030] 2. By setting up the fixing assembly and the first worm gear, the operator only needs to turn the adjustment ring to make the support screw slide inside the support column, so that the anti-slip plate is in close contact with the inner wall of the steel beam groove, thereby connecting the first support crossbar to the steel beam. By turning the first worm gear, the operator can quickly adjust the support height of the first connecting frame and the second connecting frame;

[0031] 3. By setting the adjustment component, the operator can quickly adjust the support span of the first connecting frame and the second connecting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a support truss according to an embodiment of the present application.

[0033] Figure 2 yes Figure 1 Schematic diagram of the structure at point A.

[0034] Figure 3 It is a structural diagram of the connection component of an embodiment of the present application.

[0035] Figure 4 It is a structural diagram of the second control component of an embodiment of the present application.

[0036] Figure 5 yes Figure 4 Schematic diagram of the structure at point B.

[0037] Figure 6 It is a structural diagram of the third drive component of an embodiment of the present application.

[0038] Figure 7 This Figure 6 Schematic diagram of the structure at point C in the middle.

[0039] Description of reference numerals:

[0040] 1. First support crossbar; 11. Second support crossbar; 111. Reinforcement rod; 12. First connecting frame; 13. Second connecting frame; 131. Sliding rod; 2. Connecting assembly; 21. Sliding seat; 22. Fixing rod; 221. Through hole; 23. First mounting seat; 24. First driving rod; 25. First spur gear; 26. First rack; 3. First control assembly; 31. Limiting rod; 32. Control rod; 321. Slot; 33. First return spring; 34. Control spring; 35. First sprocket; 36. First transmission chain; 37. Drive shaft; 371. Plug-in block; 38. Second sprocket; 381. Plug-in block Slot; 39. Third sprocket; 391. Second transmission chain; 4. Second control assembly; 41. Reciprocating screw; 42. Push block; 43. Second spur gear; 44. Third spur gear; 45. Inner ratchet; 5. Push assembly; 51. Push rod; 52. Limit rod; 53. Block; 54. Second return spring; 55. Third return spring; 56. Fourth sprocket; 57. Third transmission chain; 6. Fixing assembly; 61. Support screw; 62. Support column; 63. Adjusting ring; 64. Anti-skid plate; 65. First worm gear; 66. First worm; 67. Adjusting screw; 68. Second worm; 69. Second worm gear. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-7 This application is described in further detail.

[0042] The embodiment of the present application discloses a support truss. Figure 1 A supporting truss includes a first connecting frame 12 and a second connecting frame 13.

[0043] Reference Figure 1 A first support crossbar 1 and a second support crossbar 11 are disposed on the sidewalls of the first connecting frame 12 and the second connecting frame 13 that are spaced apart from each other. The first support crossbar 1 is disposed horizontally, and the second support crossbar 11 is located at the bottom of the first support crossbar 1. A plurality of reinforcement rods 111 are disposed between the first support crossbar 1 and the second support crossbar 11. The plurality of reinforcement rods 111 are disposed at an angle and are evenly distributed along the length of the first support crossbar 1. One end of the reinforcement rod 111 is fixedly connected to the first support crossbar 1, and the other end of the reinforcement rod 111 is fixedly connected to the second support crossbar 11.

[0044] Reference Figure 1 as well as Figure 2The first support crossbar 1 is provided with a fixing assembly 6, which includes a support screw 61. The support screw 61 is vertically inserted through the end of the first support crossbar 1 away from the adjacent first support crossbar 1. The top of the support screw 61 is fixedly connected to an anti-slip plate 64. The end of the support screw 61 away from the anti-slip plate 64 is sequentially sleeved with an adjustment ring 63 and a support column 62. The support screw 61 and the support column 62 are slidably engaged, the adjustment ring 63 is rotatably connected to the support column 62, and the adjustment ring 63 is threadedly engaged with the support screw 61. The end of the support column 62 away from the support screw 61 is also fixedly connected to the anti-slip plate 64.

[0045] Reference Figure 1 as well as Figure 2 A first worm gear 65 is rotatably mounted in the first support crossbar 1, and the support screw 61 passes through the first worm gear 65. The first worm gear 65 is threadedly engaged with the support screw 61. A first worm 66 is passed through the first support crossbar 1 and is rotatably connected to the first support crossbar 1. The first worm 66 and the first worm gear 65 are meshed with each other.

[0046] Reference Figure 1 as well as Figure 3 Two sliding rods 131 are fixedly connected to the side walls of the first connecting frame 12 and the second connecting frame 13 near the adjacent first supporting crossbar 1. One sliding rod 131 slides through the first supporting crossbar 1, and the other sliding rod 131 slides through the second supporting crossbar 11. The first supporting crossbar 1 and the second supporting crossbar 11 are each provided with a first sliding groove along their length. The sliding rods 131 slide and engage with the inner sidewalls of the first sliding groove, and the sliding rods 131 correspond one-to-one with the first sliding groove.

[0047] Reference Figure 3 An adjustment assembly is provided on the first support crossbar 1 corresponding to the first connecting frame 12, and the adjustment assembly includes an adjustment screw 67. The adjustment screw 67 is horizontally inserted into the end of the first support crossbar 1 near the first connecting frame 12, and is rotatably connected to the first support crossbar 1. The adjustment screw 67 passes through the sliding rod 131 located within the first support crossbar 1 on the first connecting frame 12, and the adjustment screw 67 is threadedly engaged with the sliding rod 131. A second worm gear 69 is fixedly sleeved on the end of the adjustment screw 67 away from the sliding rod 131. A second worm 68 is inserted into the first support crossbar 1, and the second worm 68 is rotatably connected to the first support crossbar 1. The second worm 68 and the second worm gear 69 are meshed with each other.

[0048] Reference Figure 3 as well as Figure 4The first connecting frame 12 is provided with a connecting assembly 2, which includes a slide 21 and a fixing rod 22. The slide 21 is fixedly connected to the first connecting frame 12. Two slides 21 are provided, symmetrically arranged along the axis of the first connecting frame 12. A second chute is defined along the length of the adjacent sidewalls of the two slides 21. The second connecting frame 13 slides into engagement with the inner sidewall of the second chute.

[0049] Reference Figure 3 as well as Figure 4 A first mounting seat 23 is provided on the side wall of the first connecting frame 12 away from the sliding seat 21, and the first mounting seat 23 is slidably connected to the first connecting frame 12. A plurality of fixing rods 22 are provided on the side wall of the first mounting seat 23 near the first connecting frame 12, and the fixing rods 22 are rotatably connected to the first mounting seat 23. Two groups of fixing rods 22 are provided, and the two groups of fixing rods 22 are located at the top and bottom of the first mounting seat 23 respectively. The ends of the fixing rods 22 away from the first mounting seat 23 can pass through the first connecting frame 12, and the fixing rods 22 and the first connecting frame 12 are slidably engaged. A plurality of through holes 221 are formed on the second connecting frame 13, and the plurality of through holes 221 are evenly arranged along the length direction of the second connecting frame 13, and the fixing rods 22 correspond to the through holes 221 one by one. A control spring 34 is fixedly connected to the side wall of the first mounting seat 23 away from the second connecting frame 13, and the end of the control spring 34 away from the first mounting seat 23 is fixedly connected to the first connecting frame 12.

[0050] Reference Figure 4 A first drive rod 24 is provided on the bottom surface of the first connecting frame 12 and is rotatably connected to the first connecting frame 12. A first spur gear 25 is fixedly sleeved on the first drive rod 24 and inserted into the second chute. A first rack 26 is fixedly connected to the bottom surface of the second connecting frame 13 and the first spur gear 25 and the first rack 26 can mesh with each other.

[0051] Reference Figure 4 as well as Figure 5 The first control assembly 3 is provided on the first connecting frame 12. The first control assembly 3 includes a limit rod 31 and a control rod 32. The limit rod 31 is fixedly connected to the side wall of the first mounting seat 23 close to the first connecting frame 12. The end of the limit rod 31 away from the first mounting seat 23 penetrates into the first connecting frame 12. The first connecting frame 12 is provided with a third sliding groove along its width direction. The limit rod 31 slides and cooperates with the inner side wall of the third sliding groove. The control rod 32 is provided on the side wall of the first connecting frame 12 away from the second connecting frame 13. The first return spring 33 is fixedly connected to the side wall of the control rod 32 close to the first connecting frame 12. The end of the first return spring 33 away from the control rod 32 is fixedly connected to the first connecting frame 12.

[0052] Reference Figure 4 as well as Figure 5The end of the control rod 32 away from the slide 21 is inserted into the first mounting seat 23 and the limiting rod 31 in sequence. The limiting rod 31 has a slot 321 formed along its width, and the control rod 32 is plugged into the slot 321. The end of the control rod 32 near the limiting rod 31 is provided with an inclined surface. The end of the control rod 32 away from the limiting rod 31 can abut against the second connecting frame 13.

[0053] Reference Figure 4 as well as Figure 6 A first drive assembly is mounted on the first mounting seat 23 and includes a first sprocket 35 and a first transmission chain 36. The first sprocket 35 is fixedly mounted on the end of the fixed rod 22 located within the first mounting seat 23, with each first sprocket 35 corresponding to each fixed rod 22. A first transmission chain 36 is wound around each of the first sprockets 35 on a set of fixed rods 22. A fourth sprocket 56 is fixedly mounted on one of the fixed rods 22 at the top of the first mounting seat 23, and a fourth sprocket 56 is also fixedly mounted on another fixed rod 22 at the bottom of the first mounting seat 23. A third transmission chain 57 is wound around the two fourth sprockets 56.

[0054] Reference Figure 4 as well as Figure 6 A second drive assembly is provided on the first mounting seat 23, and the second drive assembly includes a drive shaft 37. The drive shaft 37 is fixedly connected to the end of the first drive rod 24 near the first mounting seat 23, and the cross-section of the drive shaft 37 is rectangular. A plug-in block 371 is fixedly connected to the bottom surface of the first mounting seat 23, and the drive shaft 37 can pass through the plug-in block 371. A second sprocket 38 is rotatably mounted in the plug-in block 371, and a slot 381 is provided on the second sprocket 38, and the drive shaft 37 is plugged into the slot 381. A third sprocket 39 is fixedly sleeved on a fixed rod 22 located at the top of the plug-in block 371, and a second transmission chain 391 is wound around the second sprocket 38 and the third sprocket 39.

[0055] Reference Figure 4 as well as Figure 6 The first connecting frame 12 is provided with a second control assembly 4, which includes a reciprocating screw 41 and a push block 42. The reciprocating screw 41 is disposed on the side wall of the first connecting frame 12 near the first drive rod 24 and is rotatably connected to the first connecting frame 12. The push block 42 is sleeved on the reciprocating screw 41 and threadedly engaged with the reciprocating screw 41. The side wall of the push block 42 away from the first connecting frame 12 can abut against the first mounting seat 23.

[0056] Reference Figure 6The first connecting frame 12 is provided with a third drive assembly, which includes a second spur gear 43 and a third spur gear 44. The second spur gear 43 is fixedly mounted on the first drive rod 24. The reciprocating screw rod 41 is fixedly mounted with an inner ratchet 45. The third spur gear 44 is mounted on the inner ratchet 45. The second spur gear 43 and the third spur gear 44 are meshed with each other.

[0057] Reference Figure 6 as well as Figure 7 The first connecting frame 12 is provided with a push assembly 5, which includes a push rod 51. The push rod 51 slides through the side wall of the slide 21 near the control spring 34 and is capable of abutting the second connecting frame 13. The slide 21 has a fifth chute defined along its length, with the push rod 51 slidingly engaging the inner sidewall of the fifth chute. The push rod 51 is arranged horizontally, and a block 53 slides through its bottom surface. The push rod 51 has a fourth chute defined along its height, with the block 53 slidingly engaging the inner sidewall of the fourth chute. The block 53 is provided with an inclined surface.

[0058] Reference Figure 6 as well as Figure 7 A second return spring 54 is fixedly connected to the block 53. The end of the second return spring 54 away from the block 53 is fixedly connected to the inner side wall of the fourth chute. A third return spring 55 is fixedly connected to the end of the push rod 51 located in the fifth chute. The end of the third return spring 55 away from the push rod 51 is fixedly connected to the inner end wall of the fifth chute.

[0059] Reference Figure 6 as well as Figure 7 A limiting rod 52 is fixedly connected to the side wall of the pushing block 42 away from the first mounting seat 23, and the end of the limiting rod 52 away from the pushing block 42 is inserted into the first connecting frame 12 and the fifth sliding groove in sequence, and the limiting rod 52 abuts against the blocking block 53.

[0060] The implementation principle of a support truss according to an embodiment of the present application is as follows: an operator first determines the support span. After determining the support span, the operator rotates the second worm 68. The rotation of the second worm 68 causes the second worm gear 69 to rotate. The rotation of the second worm gear 69 causes the adjustment screw 67 to rotate. The rotation of the adjustment screw 67 causes the sliding rod 131 to move. The movement of the sliding rod 131 causes the first connecting frame 12 to move.

[0061] After the adjustment is completed, the operator inserts the second connecting frame 13 into the second sliding groove on the slide 21, so that the first rack 26 on the second connecting frame 13 contacts the first spur gear 25, and the operator rotates the first driving rod 24. The rotation of the first driving rod 24 causes the first spur gear 25 to rotate, and the rotation of the first spur gear 25 causes the first rack 26 to move. The movement of the first rack 26 causes the second connecting frame 13 to move, and the second connecting frame 13 slides in the second sliding groove. When the second connecting frame 13 moves to the end of the second sliding groove, the second connecting frame 13 contacts the control rod 32, and the first spur gear 25 is rotated. The second connecting frame 13 abuts against the control rod 32 and pushes the control rod 32 to move. The control rod 32 moves out of the slot 321 and away from the limit rod 31. After the limit rod 31 loses the restriction of the control rod 32, the first mounting seat 23 moves toward the first connecting frame 12 under the action of the control spring 34. The movement of the first mounting seat 23 causes the fixing rod 22 to move. The fixing rod 22 moves and is inserted into the through hole 221 on the second connecting frame 13. At this time, the second connecting frame 13 stops moving. At the same time, the first rack 26 is separated from the first rack 26 under the inertia of the second connecting frame 13.

[0062] After the first mounting base 23 moves, the plug-in block 371 moves with the first mounting base 23. At this time, the drive shaft 37 penetrates the plug-in block 371 and is inserted into the slot 381 on the second sprocket 38. Since the first rack 26 is just disengaged from the first spur gear 25 at this time, the first drive rod 24 continues to rotate and does not cause the second connecting frame 13 to continue to move. The operator continues to rotate the first drive rod 24. The rotation of the first drive rod 24 causes the drive shaft 37 to rotate. The rotation of the drive shaft 37 causes the second sprocket 38 to rotate. The second sprocket 38 rotates through the second transmission chain 391 so that the third sprocket 39 The third sprocket 39 rotates, causing the fixed rod 22 to rotate. The fixed rod 22 rotates through the first sprocket 35 and the first transmission chain 36, causing the plurality of fixed rods 22 to rotate simultaneously. The rotation of the fixed rod 22 simultaneously causes the fourth sprocket 56 to rotate. The fourth sprocket 56 rotates and runs through the third transmission chain 57. The two groups of fixed rods 22 rotate simultaneously. Under the action of the fixed rod 22 and the through hole 221, the fixed rod 22 moves and continuously penetrates into the through hole 221. At the same time, the first mounting seat 23 continuously moves toward the first connecting frame 12. At this time, the second connecting frame 13 is fixed to the first connecting frame 12.

[0063] The operator moves the connected first connecting frame 12, the second connecting frame 13, the first supporting cross bar 1 and the second supporting cross bar 11 to the installation position, and the operator inserts the end of the first supporting cross bar 1 between the two steel beams corresponding to the installation position; the operator moves the supporting screw 61 into the steel beam groove and rotates the adjusting ring 63. The adjusting ring 63 rotates to make the supporting screw 61 slide in the supporting column 62, and the anti-slip plate 64 is thereby in close contact with the inner wall of the steel beam groove. When the operator needs to adjust the height of the first supporting cross bar 1, the operator rotates the first worm 66. The rotation of the first worm 66 causes the first worm gear 65 to rotate. The rotation of the first worm gear 65 causes the position of the first supporting cross bar 1 to change, thereby adjusting the height of the first supporting cross bar 1;

[0064] When the first connecting frame 12 and the second connecting frame 13 need to be disassembled, the operator rotates the first driving rod 24 in the opposite direction. The reverse rotation of the first driving rod 24 causes the driving shaft 37 to reverse, and the plurality of fixing rods 22 rotate in the opposite direction at the same time. The fixing rods 22 rotate in the opposite direction and disengage from the through holes 221 of the second connecting frame 13. When the fixing rods 22 move to the end of the through holes 221, further rotation of the first driving rod 24 does not cause the fixing rods 22 to move further.

[0065] The first driving rod 24 rotates while the second spur gear 43 rotates. The rotation of the second spur gear 43 rotates the third spur gear 44. The rotation of the third spur gear 44 rotates the inner ratchet 45. The rotation of the inner ratchet 45 rotates the reciprocating screw rod 41. The rotation of the reciprocating screw rod 41 moves the push block 42. The push block 42 moves and pushes the first mounting seat 23 to move to the initial position.

[0066] When the first mounting seat 23 moves to the initial position, when the reciprocating screw 41 rotates to move the pushing block 42, the pushing block 42 moves to move the limiting rod 52. After the pushing block 42 pushes the first mounting seat 23 to move to the initial position, the limiting rod 52 moves to the end of the block 53 and disengages from the block 53. The block 53 loses the obstruction of the limiting rod 52. Under the action of the third return spring 55, the push rod 51 moves and pushes the second connecting frame 13 to move. The second connecting frame 13 moves and causes the first rack 26 to move. The first rack 26 contacts the first spur gear 25 again. When the first spur gear 25 is reversed, it can move the first rack 26. When the second connecting frame 13 is separated from the first connecting frame 12, the reciprocating screw 41 rotates and the push block 42 returns to its initial position. When the second connecting frame 13 is reconnected with the first connecting frame 12, the second connecting frame 13 pushes the push rod 51 to move. The movement of the push rod 51 causes the block 53 to move. When the inclined surface of the block 53 has little effect, the block 53 compresses the second return spring 54. The block 53 moves to its initial position and then pops out. At this time, the block 53 abuts against the limiting rod 52 again, and the limiting rod 52 continues to limit the movement of the block 53.

[0067] After the control rod 32 is disengaged from the restriction of the second connecting frame 13, the control rod 32 moves under the action of the first return spring 33 and is reinserted into the slot 321 on the limit rod 31, and the control rod 32 thereby re-restricts the movement of the first mounting seat 23; the second connecting frame 13 moves and causes the first rack 26 to re-engage with the first spur gear 25. At this time, the first driving rod 24 is continued to be rotated in the opposite direction. The rotation of the first driving rod 24 causes the first spur gear 25 to rotate. The rotation of the first spur gear 25 causes the first rack 26 and the second connecting frame 13 to move, so that the operator can remove the second connecting frame 13; by setting the first connecting frame 12, the second connecting frame 13 and the connecting assembly 2, the two first support cross bars 1 can be quickly connected together, and at the same time, quick disassembly can be achieved, and it is convenient for the operator to transport during disassembly. At the same time, the operator can quickly adjust the support span of the first support cross bar 1 through the adjustment assembly, thereby improving the construction efficiency.

[0068] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A support truss, comprising a first support cross bar (1) and a second support cross bar (11), wherein a plurality of reinforcing rods (111) are provided between the first support cross bar (1) and the second support cross bar (11), wherein one end of the plurality of reinforcing rods (111) is fixedly connected to the first support cross bar (1), and the other end of the plurality of reinforcing rods (111) is fixedly connected to the second support cross bar (11), characterized in that: The first supporting cross bar (1) is provided with a first connecting frame (12) near the end of the adjacent first supporting cross bar (1), and a second connecting frame (13) is provided on the adjacent first supporting cross bar (1). A plurality of sliding rods (131) are fixedly connected to the first connecting frame (12) and the second connecting frame (13), and the plurality of sliding rods (131) are respectively inserted into the corresponding first supporting cross bar (1). A first sliding groove for slidingly cooperating with the sliding rod (131) is provided in the first supporting cross bar (1), a connecting component (2) for fixing the second connecting frame (13) is provided on the first connecting frame (12), and a fixing component (6) for limiting it to the steel beam is provided on the first supporting cross bar (1); The connecting assembly (2) includes a slide seat (21) and a fixing rod (22), the slide seat (21) is fixedly connected to the first connecting frame (12), the slide seat (21) is provided with a second slide groove for slidingly cooperating with the second connecting frame (13), the first connecting frame (12) is provided with a first mounting seat (23), the first mounting seat (23) is slidably connected to the first connecting frame (12), the fixing rod (22) is rotatably mounted on the first mounting seat (23), and the second connecting frame (13) is provided with a threaded screw thread for threadedly cooperating with the fixing rod (22). The first connecting frame (12) is provided with a first driving rod (24) rotatably mounted on the first connecting frame (12), a first spur gear (25) is fixedly sleeved on the first driving rod (24), a first rack (26) is fixedly connected to the second connecting frame (13), the first spur gear (25) can be meshed with the first rack (26), a first control component (3) for controlling the movement of the first mounting seat (23) is provided on the first connecting frame (12), and a first driving component for driving the fixed rod (22) to rotate is provided on the first connecting frame (12); The first control assembly (3) includes a limit rod (31) and a control rod (32), the limit rod (31) is fixedly connected to the first mounting seat (23), the end of the limit rod (31) away from the first mounting seat (23) penetrates into the first connecting frame (12), the first connecting frame (12) is provided with a third sliding groove for slidingly cooperating with the limit rod (31), the side wall of the first connecting frame (12) away from the second connecting frame (13) is fixedly connected with a first return spring (33), the control rod (32) is fixedly connected to the first return spring (33), one end of the control rod (32) penetrates into the third sliding groove, and the control rod (32) ) The other end can be in contact with the second connecting frame (13), the end of the control rod (32) located in the third slide groove is inserted into the limiting rod (31), and the limiting rod (31) is provided with a slot (321) for the control rod (32) to be plugged in and matched, and the end of the control rod (32) close to the limiting rod (31) is provided with an inclined surface, and the first mounting seat (23) is fixedly connected with a control spring (34), and the end of the control spring (34) away from the first mounting seat (23) is fixedly connected to the first connecting frame (12), and the first connecting frame (12) is provided with a second control component (4) for controlling the first mounting seat (23) to move to the initial position.

2. A support truss according to claim 1, characterized in that: The first drive assembly comprises a first sprocket (35) and a first transmission chain (36); the first sprocket (35) is fixedly sleeved on the end of the fixing rod (22) located in the first mounting seat (23); the first transmission chain (36) is wound around a plurality of the first sprockets (35); and the first mounting seat (23) is provided with a second drive assembly for driving the fixing rod (22) to rotate.

3. The support truss according to claim 2, characterized in that: The second driving assembly includes a driving shaft (37), the driving shaft (37) is fixedly connected to the first driving rod (24), a plug-in block (371) is fixedly connected to the first mounting seat (23), the driving shaft (37) can pass through the plug-in block (371), a second sprocket (38) is rotatably installed in the plug-in block (371), a third sprocket (39) is fixedly sleeved on the fixed rod (22), a second transmission chain (391) is wound around the second sprocket (38) and the third sprocket (39), and a slot (381) for plugging and matching with the driving shaft (37) is opened on the second sprocket (38).

4. The support truss according to claim 1, characterized in that: The second control component (4) comprises a reciprocating screw (41) and a pushing block (42), wherein the reciprocating screw (41) is rotatably mounted on the first connecting frame (12), and the pushing block (42) is sleeved on the reciprocating screw (41). The pushing block (42) is threadedly engaged with the reciprocating screw (41), and the pushing block (42) can abut against the first mounting seat (23). A third driving component for driving the reciprocating screw (41) to rotate is provided on the first connecting frame (12).

5. The support truss according to claim 4, characterized in that: The third driving assembly includes a second spur gear (43) and a third spur gear (44), the second spur gear (43) is fixedly sleeved on the first driving rod (24), the reciprocating screw rod (41) is provided with an inner ratchet (45), the third spur gear (44) is sleeved on the inner ratchet (45), and the first connecting frame (12) is provided with a pushing assembly (5) for helping the second connecting frame (13) to move.

6. The support truss according to claim 5, characterized in that: The pushing assembly (5) includes a push rod (51), which is provided on the side wall of the slide (21) away from the second connecting frame (13), and the push rod (51) can abut against the second connecting frame (13). The pushing block (42) is fixedly connected with a limiting rod (52), and the end of the limiting rod (52) away from the pushing block (42) is inserted into the first connecting frame (12) and the slide (21). The end of the push rod (51) located in the slide (21) is slidably provided with a card block (53), and the push rod (51) is provided with a second card block (53) for sliding cooperation with the card block (53). Four slide slots, a second return spring (54) is fixedly connected to the block (53), the end of the second return spring (54) away from the block (53) is fixedly connected to the inner side wall of the fourth slide slot, the block (53) abuts against the limiting rod (52), the end of the block (53) away from the push rod (51) is provided with an inclined surface, a fifth slide slot for slidingly cooperating with the push rod (51) is opened in the slide seat (21), and a third return spring (55) is fixedly connected to the push rod (51), and the end of the third return spring (55) away from the push rod (51) is fixedly connected to the inner side wall of the fifth slide slot.

7. The support truss according to claim 1, characterized in that: The fixing assembly (6) includes a support screw (61), the support screw (61) is passed through the end of the first support cross bar (1) away from the first connecting frame (12), a support column (62) is slidably sleeved on the support screw (61), an adjusting ring (63) is rotatably installed on the support column (62), the adjusting ring (63) is threadedly engaged with the support screw (61), an anti-slip plate (64) is fixedly connected to the support screw (61), and the anti-slip plate (64) is also fixedly connected to the side wall of the support column (62) away from the support screw (61), a first worm gear (65) is rotatably installed in the first support cross bar (1), the support screw (61) passes through the first worm gear (65), the first worm gear (65) is threadedly engaged with the support screw (61), a first worm (66) is passed through the first support cross bar (1), and the first worm (66) and the first worm gear (65) are meshed with each other.

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