Stair formwork support

Abstract

The utility model discloses a stair formwork support which comprises a connecting cylinder, internal thread cylinders are rotationally arranged at the two ends of the connecting cylinder, telescopic threaded rods are arranged in the internal thread cylinders in a threaded fit connection mode, and locking assemblies for locking the internal thread cylinders and the connecting cylinder are arranged between the internal thread cylinders and the connecting cylinder. The locking assembly comprises a plurality of clamping bases arranged at the end of the connecting cylinder, clamping grooves are formed in the clamping bases, a plurality of rotating blocks are arranged in the inner threaded cylinder in a hinged mode, and swing threaded rods are arranged on one sides of the rotating blocks. A connecting piece in the prior art is replaced by the telescopic threaded rod, the fixing cylinder, the inserting cylinder, the hinge base and the top base, the connecting base is connected through the telescopic threaded rod and the connecting cylinder to form the stair formwork support, and the telescopic threaded rod can be conveniently and telescopically adjusted relative to the connecting cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of stair formwork frames, in particular to a stair formwork frame. Background Art

[0002] Stair formwork is used in stair manufacturing. During the specific setup, the stair formwork needs to be placed on a flat surface or stairs to form a stable support structure, and then the stair formwork is placed. The existing stair formwork is erected in a scaffolding manner. During the scaffolding erection, multiple connectors and steel pipes are used to form the support structure. During this process, due to the cumbersome adjustment of the support size and the low efficiency of assembly and disassembly, each individual steel pipe or clamp needs to be disassembled separately. This greatly increases the burden on the personnel who erect the staircase, and people have conducted a lot of research on this issue. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a stair formwork frame, which can solve the above-mentioned problems in the existing technology.

[0004] The present invention is realized through the following technical solutions: a stair formwork frame of the present invention comprises a connecting tube, internal threaded tubes are rotatably provided at both ends of the connecting tube, a telescopic threaded rod is provided in the internal thread of the internal threaded tube in cooperation with the connection, a locking assembly is provided between the internal threaded tube and the connecting tube for locking the internal threaded tube and the connecting tube, the locking assembly comprises a plurality of clamping seats provided at the end of the connecting tube, a clamping groove is provided in the clamping seat, a plurality of rotating blocks are hingedly provided in the internal threaded tube, and a swinging threaded rod is provided on one side of the rotating block.

[0005] According to a further technical solution, a locking nut is provided on the outer surface of the swing threaded rod in threaded connection.

[0006] A further technical solution is that there are two connecting seats, a fixing rod is fixed between the connecting seats, a plurality of hinged seats are rotatably provided on the outer surface of the fixing rod, the end of the telescopic threaded rod is inserted into the hinged seat, and a fixing cylinder is also provided on the top of the connecting seat.

[0007] A further technical solution also includes a connecting shell and a locking shell, wherein the upper side of the connecting shell is split and provided with a placement plate, and the lower side of the connecting shell is split and provided with a bottom connecting seat, and an insertion cylinder is hingedly provided in the bottom connecting seat, and the telescopic threaded rod enters the insertion cylinder, and the locking shell and the connecting shell are sleeved on the outer surface of the connecting cylinder and fixed, and a top seat is provided on the top of the locking shell, and the telescopic threaded rod is inserted into the top seat.

[0008] A further technical solution also includes a plurality of through holes provided in the fixing cylinder, the top seat and the insertion cylinder, and the end of the telescopic threaded rod is provided with a socket opposite to the through holes.

[0009] The beneficial effects of the utility model are:

[0010] First, by setting the telescopic threaded rod and the connecting cylinder to be telescopically movable, and by threadedly connecting the internal threaded cylinder and the connecting cylinder, and providing a structure of a rotating block, a swinging threaded rod, a clamping groove, a clamping seat and a locking nut, the telescopic threaded rod can be telescoped in the connecting cylinder in two situations, so that the telescopic threaded rod can be quickly separated from the fixed cylinder, the insertion cylinder, the hinge seat and the top seat.

[0011] Second, the telescopic threaded rod and the connecting tube are telescopically adjusted to facilitate adjustment of the size of the bracket during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] For ease of explanation, the present invention is described in detail with reference to the following specific embodiments and accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of a stair formwork frame of the present utility model;

[0014] Figure 2 for Figure 1 Schematic diagram at A in the middle;

[0015] Figure 3 for Figure 2 Schematic diagram at B in the middle;

[0016] Figure 4 for Figure 2 Schematic diagram at C in the middle;

[0017] Figure 5 for Figure 1 Schematic diagram at D in the middle;

[0018] In the figure, there are a connecting seat 11, a fixed rod 12, a hinged seat 13, a telescopic threaded rod 14, a top seat 15, a connecting tube 16, a locking shell 17, a clamping seat 21, a rotating block 22, an internal threaded tube 23, a swinging threaded rod 24, a clamping groove 25, a locking nut 26, a fixed tube 32, a through hole 33, a placement plate 41, a connecting shell 42, a bottom connecting seat 43, and an insertion cylinder 44. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 5 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1The up, down, left, right, front and back directions of the projection relationship itself are consistent. A stair formwork frame of the utility model includes a connecting tube 16, and an internal threaded tube 23 is rotatably provided at both ends of the connecting tube 16. The internal thread of the internal threaded tube 23 is connected with a telescopic threaded rod 14, and the telescopic threaded rod 14 can move in the connecting tube 16. A locking component is provided between the internal threaded tube 23 and the connecting tube 16 to lock the internal threaded tube 23 and the connecting tube 16.

[0020] Advantageously, the telescopic threaded rod 14 is led out from both ends of the connecting cylinder 16 respectively.

[0021] Advantageously, the locking assembly includes a plurality of snap-fit ​​seats 21 arranged at the end of the connecting tube 16, a snap-fit ​​groove 25 is provided in the snap-fit ​​seat 21, a plurality of rotating blocks 22 are hingedly provided in the internal threaded tube 23, a swinging threaded rod 24 is provided on one side of the rotating block 22, and the swinging threaded rod 24 is snap-fitted with the snap-fit ​​groove 25 after being flipped.

[0022] Advantageously, a locking nut 26 is provided on the outer surface of the swinging threaded rod 24 in a threaded fitting connection. After the swinging threaded rod 24 is abutted against the clamping groove 25, the locking nut 26 is threadedly connected to the swinging threaded rod 24 through the locking nut 26, so that the locking nut 26 abuts against the clamping seat 21 to further improve the degree of fixation of the swinging threaded rod 24 and the clamping groove 25.

[0023] Example 2

[0024] Advantageously, on the basis of the first embodiment, it also includes a connecting seat 11, two connecting seats 11 are provided, a fixing rod 12 is fixedly provided between the connecting seats 11, a plurality of hinged seats 13 are rotatably provided on the outer surface of the fixing rod 12, the end of the telescopic threaded rod 14 is inserted into the hinged seat 13, and a fixing cylinder 32 is also provided on the top of the connecting seat 11.

[0025] Advantageously, the connecting seat 11 is an I-shaped structure, and a plurality of through holes are provided on the upper and lower sides of the connecting seat 11 for passing bolts.

[0026] Example 3

[0027] Advantageously, on the basis of the second embodiment, it further includes a connecting shell 42 and a locking shell 17. The connecting shell 42 is arranged in a split manner. The upper side of the connecting shell 42 is split and provided with a placement plate 41. The lower side of the connecting shell 42 is split and provided with a bottom connecting seat 43. An insertion cylinder 44 is hingedly provided in the bottom connecting seat 43. The telescopic threaded rod 14 is inserted into the insertion cylinder 44. The placement plate 41 is used to place the stair formwork. The locking shell 17 is arranged in a split manner. The locking shell 17 and the connecting shell 42 are sleeved on the outer surface of the connecting cylinder 16 and fixed. The split of the locking shell 17 and the connecting shell 42 can be connected and fixed by bolts and nuts. A top seat 15 is provided on the top of the locking shell 17, and the telescopic threaded rod 14 is inserted into the top seat 15.

[0028] Example 4

[0029] Advantageously, on the basis of the third embodiment, it further includes a plurality of through holes 33 provided in the fixed cylinder 32, the top seat 15 and the insertion cylinder 44, and the end of the telescopic threaded rod 14 is provided with a socket opposite to the through hole 33. By arranging bolts in the through hole 33 and the socket, and fixing the bolts on one side of the fixed cylinder 32 and the top seat 15, the telescopic threaded rod 14 can be stably connected.

[0030] When setting up the stair formwork, the steel pipes in the prior art are replaced by the telescopic threaded rod 14 and the connecting tube 16, and the connecting parts in the prior art are replaced by the telescopic threaded rod 14, the fixed tube 32, the inserted cylinder 44, the hinged seat 13 and the top seat 15. The connecting seat 11 is connected with the telescopic threaded rod 14 and the connecting tube 16 to form the stair formwork. Since the telescopic threaded rod 14 can be conveniently telescoped and adjusted relative to the connecting tube 16, the convenience of disassembly and assembly is improved.

[0031] When adjusting the telescopic threaded rod 14 and the connecting tube 16, the first situation is to swing the swing threaded rod 24 out of the clamping groove 25 so that the internal threaded tube 23 can rotate. When one end of the telescopic threaded rod 14 is connected to other structures, the telescopic threaded rod 14 is restricted from rotating. Then, the telescopic movement of the telescopic threaded rod 14 in the connecting tube 16 can be adjusted by rotating the internal threaded tube 23.

[0032] In the second case, one end of the telescopic threaded rod 14 is not connected to other structures. The threaded rod 24 is swung to engage with the clamping groove 25, and the locking nut 26 is rotated so that the locking nut 26 is against the clamping seat 21. At this time, the telescopic threaded rod 14 can be rotated in the internal threaded tube 23 and then telescopically moved.

[0033] When setting up the stair formwork, four connecting seats 11 are respectively provided, and the connecting seats 11 on the left and right sides are connected by the telescopic threaded rod 14 and the connecting tube 16, and the connecting seats 11 on the front and rear sides are connected and fixed by the fixing rod 12. At this time, the position between the connecting seats 11 on the left and right sides can be adjusted. When bolts are set in the through hole 33 and the socket in the telescopic threaded rod 14 between the hinge seat 13 and the telescopic threaded rod 14 for connection, the position between the connecting seats 11 can be adjusted through the first situation. When the hinge seat 13 and the telescopic threaded rod 14 are not connected and fixed, the position between the connecting seats 11 can be adjusted through the second situation.

[0034] A connecting tube 16 and a telescopic threaded rod 14 are arranged on the upper side of the connecting seat 11, wherein the telescopic threaded rod 14 is inserted into the fixed tube 32, and then another connecting seat 11 is installed on the upper side of the connecting seat 11. At this time, the height between the telescopic threaded rod 14 and the connecting tube 16 on the upper side of the connecting seat 11 can be adjusted to form a height difference between the connecting seats 11 on the top side.

[0035] By connecting the telescopic threaded rod 14 and the connecting tube 16 between the connecting seats 11 on the top side, a structure for placing stair formwork can be formed.

[0036] A plurality of telescopic threaded rods 14 and connecting tubes 16 are connected between the inclined connecting tube 16 and the bottom connecting tube 16. The ends of the telescopic threaded rods 14 are respectively connected to a connecting shell 42, a bottom connecting seat 43, an insertion cylinder 44, a locking shell 17 and a top seat 15. By inserting the telescopic threaded rods 14 into the top seat 15 and inserting the telescopic threaded rods 14 into the insertion cylinder 44, a stable connection is achieved between the inclined connecting tube 16 and the bottom connecting tube 16.

[0037] When the stair formwork is dismantled, the fixation between the telescopic threaded rod 14 and the hinged seat 13, the telescopic threaded rod 14 and the fixed cylinder 32, the telescopic threaded rod 14 and the inserted cylinder 44, and the telescopic threaded rod 14 and the top seat 15 is released, and the swinging threaded rod 24 is clamped into the clamping groove 25. After rotating the telescopic threaded rod 14, the telescopic threaded rod 14 is threadedly connected with the internal threaded cylinder 23 for telescopic movement, so that the 4 and the hinged seat 13, the telescopic threaded rod 14 and the fixed cylinder 32, the telescopic threaded rod 14 and the inserted cylinder 44, and the telescopic threaded rod 14 and the top seat 15 are disengaged and offset, so that quick dismantling can be achieved.

[0038] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that do not require creative work should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A stair formwork frame, comprising a connecting tube (16), wherein both ends of the connecting tube (16) are rotatably provided with internal thread tubes (23), wherein the internal thread tube (23) is provided with a telescopic threaded rod (14) in a matching connection with the internal thread, characterized in that: A locking assembly is provided between the internally threaded cylinder (23) and the connecting cylinder (16) to lock the internally threaded cylinder (23) and the connecting cylinder (16), the locking assembly comprising a plurality of clamping seats (21) provided at the end of the connecting cylinder (16), a clamping groove (25) provided in the clamping seats (21), a plurality of rotating blocks (22) hingedly provided in the internally threaded cylinder (23), and a swinging threaded rod (24) provided on one side of the rotating block (22).

2. A stair formwork according to claim 1, characterized in that: The outer surface of the swing threaded rod (24) is provided with a locking nut (26) in threaded matching connection.

3. A stair formwork according to claim 2, characterized in that: It also comprises a connecting seat (11), wherein two connecting seats (11) are provided, a fixing rod (12) is fixedly provided between the connecting seats (11), a plurality of hinge seats (13) are rotatably provided on the outer surface of the fixing rod (12), the end of the telescopic threaded rod (14) is inserted into the hinge seat (13), and a fixing cylinder (32) is also provided on the top of the connecting seat (11).

4. A stair formwork according to claim 3, characterized in that: It also includes a connecting shell (42) and a locking shell (17), wherein the upper side of the connecting shell (42) is split and provided with a placement plate (41), and the lower side of the connecting shell (42) is split and provided with a bottom connecting seat (43), and an insertion cylinder (44) is hingedly provided inside the bottom connecting seat (43), and the telescopic threaded rod (14) is inserted into the insertion cylinder (44), and the locking shell (17) and the connecting shell (42) are sleeved on the outer surface of the connecting cylinder (16) and fixed, and a top seat (15) is provided on the top of the locking shell (17).

5. A stair formwork according to claim 4, characterized in that: It also includes a plurality of through holes (33) arranged in the fixing cylinder (32), the top seat (15) and the insertion cylinder (44), and the end of the telescopic threaded rod (14) is provided with a plug hole opposite to the through hole (33).

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