Tower crane type folding scaffold

Abstract

The utility model belongs to the field of scaffolds, and particularly relates to a tower crane type folding scaffold which comprises a frame rod, a single-fork hinge frame is hinged to the outer side of the frame rod, a double-fork hinge frame is hinged to the outer side of the frame rod, a movable sleeve is connected to the outer side of the frame rod in a sliding mode, and a positioning mechanism is arranged on the movable sleeve. A bent rod is slidably connected to the interior of the upper end of the frame rod, a platform plate is fixedly connected to the outer side of the bent rod, a limiting ring is fixedly connected to the outer side of the bent rod, and a limiting frame is hinged to the outer side of the frame rod. The movable sleeves, the limiting columns, the springs and other structures are additionally arranged on the outer sides of the frame rods, when the scaffold needs to be unfolded, the circular rings are pulled to drive the limiting columns to move, when the limiting columns are separated from the positioning grooves, limiting of the movable sleeves can be relieved, then the scaffold can be folded or stored, and therefore the scaffold can be folded or stored without rotating bolts. And the use efficiency of the scaffold can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffolding, in particular to a tower crane type folding scaffolding. Background Art

[0002] During the construction of reinforced concrete, scaffolding is often needed, and construction workers carry out construction work by standing on the scaffolding. According to a tower crane type folding scaffolding proposed in the patent authorization announcement number: CN203022325U, this utility model relates to a tower crane type folding scaffolding, which belongs to the field of construction equipment, and particularly relates to a tower crane type folding scaffolding, including a frame body. Support columns are arranged at the four corners of the frame body. The support columns include a first support column, a second support column, a third support column, and a fourth support column. Longitudinal rotation grooves are respectively arranged on the upper opposite sides of the first support column and the second support column, and the third support column and the fourth support column. Longitudinal support rods are respectively hinged to the longitudinal rotation grooves through longitudinal rotating shafts. Longitudinal sliding sleeves are respectively sleeved in the middle parts of the first support column and the second support column, and the third support column and the fourth support column. Longitudinal sliding grooves are respectively arranged on the opposite sides of the longitudinal sliding sleeves. The longitudinal sliding grooves are respectively hinged to the lower ends of the longitudinal support rods through longitudinal rotating shafts. The longitudinal support rods are arranged in a crosswise manner. Loading grooves are arranged at the upper ends of the support columns, and rotation openings are arranged on the outer sides of the bottoms of the loading grooves. The beneficial effects of this utility model are: reasonable structure, convenient disassembly, high construction efficiency, easy to operate, and conducive to popularization.

[0003] However, when the existing scaffolding is unfolded or folded and stored, it is necessary to rotate multiple bolts, resulting in a reduction in the efficiency of storage or unfolding. Moreover, the platform board is placed outside the frame rod, which is prone to shaking and affects the stability of the scaffolding. Therefore, it is necessary to improve the existing technology. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a tower crane type folding scaffolding, which solves the problems of low efficiency of storage or folding and unstable placement of the platform board.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a tower crane type folding scaffolding, including a frame rod, a single fork articulated frame is hinged to the outside of the frame rod, a double fork articulated frame is hinged to the outside of the frame rod, a moving sleeve is slidably connected to the outside of the frame rod, a positioning mechanism is arranged on the moving sleeve, a bent rod is slidably connected to the inside of the upper end of the frame rod, a platform board is fixedly connected to the outside of the bent rod, a limiting ring is fixedly connected to the outside of the bent rod, a limiting frame is hinged to the outside of the frame rod, and a tension spring is arranged inside the limiting frame.

[0006] Preferably, the moving sleeve is hinged to the double fork articulated frame, and an expansion groove is formed on the outside of the moving sleeve, and the width of the expansion groove is the same as the width of the movable seat.

[0007] Preferably, a movable seat is slidably connected inside the frame rod, and the movable seat is hinged to the single-fork articulated frame. The movable seat can increase the degree of freedom of one end of the single-fork articulated frame.

[0008] Preferably, one end of the tension spring is fixedly connected to the frame rod, and the other end of the tension spring is fixedly connected to the limit frame, the limit frame contacts the limit ring, and the limit ring contacts the frame rod, and the tension spring can drive the limit frame to automatically reset through elastic force.

[0009] Preferably, the positioning mechanism includes a connecting rod, the connecting rod is slidably connected inside the movable sleeve, the end of the connecting rod close to the frame rod is fixedly connected to the limiting column, the end of the connecting rod away from the frame rod is fixedly connected to a ring, a positioning groove is provided inside the frame rod, a spring is provided on the outside of the connecting rod, and the ring can drive the limiting column to move through the connecting rod.

[0010] Preferably, the limiting column is slidably connected to the positioning groove, the limiting column is slidably connected to the moving sleeve, the ring is in contact with the moving sleeve, and the limiting column can limit the moving sleeve.

[0011] Preferably, one end of the spring is fixedly connected to the limiting column, and the other end of the spring is fixedly connected to the movable sleeve, and the spring can drive the limiting column to automatically reset through elastic force.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model adds structures such as a movable sleeve, a limit column and a spring to the outside of the frame rod. When the scaffold needs to be unfolded, the limit column is driven to move by pulling the ring. When the limit column is separated from the positioning groove, the limit on the movable sleeve can be released, and then the scaffold can be folded or stored, so there is no need to turn the bolts, which can effectively improve the use efficiency of the scaffold.

[0014] 2. The utility model adds structures such as a limit frame, a bent rod and a limit ring to the frame rod. During use, the bent rod on the outer side of the platform plate can be inserted into the interior of the frame rod. At the same time, the elastic force of the tension spring can be used to drive the limit frame to slide to the outer side of the limit ring to limit the bent rod, thereby making the placement of the platform plate more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 A three-dimensional cross-sectional view of

[0017] Figure 3 For the present utility model Figure 1 is a perspective view of the platform board;

[0018] Figure 4 For the present utility model Figure 1 is an enlarged front elevation sectional view of the support rod;

[0019] Figure 5 For the present utility model Figure 2 is an enlarged view of the structure of part A.

[0020] In the figure: 1, support rod; 2, single-fork articulated frame; 3, double-fork articulated frame; 4, movable sleeve; 5, positioning mechanism; 6, bent rod; 7, platform board; 8, limit ring; 9, extension slot; 10, limit frame; 11, tension spring; 12, movable seat; 51, connecting rod; 52, limit post; 53, circular ring; 54, positioning slot; 55, spring. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a tower crane type folding scaffolding, including a support rod 1, a single-fork articulated frame 2 is hinged on the outer side of the support rod 1, a double-fork articulated frame 3 is hinged on the outer side of the support rod 1, a movable sleeve 4 is slidably connected to the outer side of the support rod 1, a positioning mechanism 5 is arranged on the movable sleeve 4, a bent rod 6 is slidably connected to the upper end inside the support rod 1, a platform board 7 is fixedly connected to the outer side of the bent rod 6, a limit ring 8 is fixedly connected to the outer side of the bent rod 6, a limit frame 10 is hinged on the outer side of the support rod 1, and a tension spring 11 is arranged inside the limit frame 10.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4, the movable sleeve 4 is hinged to the double-fork articulated frame 3. An expansion slot 9 is formed on the outer side of the movable sleeve 4. The width of the expansion slot 9 is the same as the width of the movable seat 12. The movable seat 12 is slidably connected inside the rod 1. The movable seat 12 is hinged to the single-fork articulated frame 2. The movable seat 12 can increase the degree of freedom of one end of the single-fork articulated frame 2. One end of the tension spring 11 is fixedly connected to the rod 1, and the other end of the tension spring 11 is fixedly connected to the limit frame 10. The limit frame 10 contacts the limit ring 8, and the limit ring 8 contacts the rod 1. The tension spring 11 can drive the limit frame 10 to automatically reset through the elastic force.

[0024] Please refer to Figure 1 , Figure 2 , Figure 5 , the positioning mechanism 5 includes a connecting rod 51. The connecting rod 51 is slidably connected inside the movable sleeve 4. One end of the connecting rod 51 close to the rod 1 is fixedly connected with a limit post 52. The other end of the connecting rod 51 far from the rod 1 is fixedly connected with a ring 53. A positioning slot 54 is formed inside the rod 1. A spring 55 is arranged on the outer side of the connecting rod 51. The ring 53 can drive the limit post 52 to move through the connecting rod 51. The limit post 52 is slidably connected with the positioning slot 54. The limit post 52 is slidably connected with the movable sleeve 4. The ring 53 contacts the movable sleeve 4. The limit post 52 can limit the movable sleeve 4. One end of the spring 55 is fixedly connected with the limit post 52, and the other end of the spring 55 is fixedly connected with the movable sleeve 4. The spring 55 can drive the limit post 52 to automatically reset through the elastic force.

[0025] The specific implementation process of the present utility model is as follows: When in use, pull the ring 53. The ring 53 drives the limit post 52 to move through the connecting rod 51 and compresses the spring 55. When the limit post 52 disengages from the current positioning slot 54, the limit on the movable sleeve 4 can be released. Then move the movable sleeve 4 upward to expand the scaffolding. After the scaffolding is expanded, release the ring 53. The spring 55 resets. The spring 55 can drive the limit post 52 to slide into the adjusted positioning slot 54 through the elastic force, and thus the expansion or storage of the scaffolding can be completed;

[0026] After the scaffolding is expanded, flip the limit frame 10. The limit frame 10 stretches the tension spring 11. Then insert the bent rod 6 on the outer side of the platform board 7 into the upper end of the rod 1. When the limit ring 8 contacts the rod 1, release the limit frame 10. The tension spring 11 resets. The tension spring 11 can drive the limit frame 10 to press on the outer side of the limit ring 8 through the elastic force, and thus the installation of the platform board 7 can be completed, and the placement of the platform board 7 can be made more stable.

[0027] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A tower crane type folding scaffold, comprising a frame rod (1), characterized in that: The outer side of the frame rod (1) is hinged with a single-fork hinged frame (2), the outer side of the frame rod (1) is hinged with a double-fork hinged frame (3), the outer side of the frame rod (1) is slidably connected with a movable sleeve (4), the movable sleeve (4) is provided with a positioning mechanism (5), the upper end of the frame rod (1) is slidably connected with a bent rod (6), the outer side of the bent rod (6) is fixedly connected with a platform plate (7), the outer side of the bent rod (6) is fixedly connected with a limiting ring (8), the outer side of the frame rod (1) is hinged with a limiting frame (10), and the inner side of the limiting frame (10) is provided with a tension spring (11).

2. A tower crane type folding scaffold according to claim 1, characterized in that: The movable sleeve (4) is hinged to the double-fork hinged frame (3), and an expansion slot (9) is provided on the outer side of the movable sleeve (4).

3. The tower crane type folding scaffold according to claim 1, characterized in that: A movable seat (12) is slidably connected inside the frame rod (1), and the movable seat (12) is hinged to the single-fork hinged frame (2).

4. The tower crane type folding scaffold according to claim 1, characterized in that: One end of the tension spring (11) is fixedly connected to the frame rod (1), and the other end of the tension spring (11) is fixedly connected to the limit frame (10). The limit frame (10) is in contact with the limit ring (8), and the limit ring (8) is in contact with the frame rod (1).

5. The tower crane type folding scaffold according to claim 1, characterized in that: The positioning mechanism (5) comprises a connecting rod (51), the interior of the movable sleeve (4) is slidably connected with the connecting rod (51), one end of the connecting rod (51) close to the frame rod (1) is fixedly connected to a limiting column (52), and one end of the connecting rod (51) away from the frame rod (1) is fixedly connected to a ring (53), a positioning groove (54) is provided inside the frame rod (1), and a spring (55) is provided on the outside of the connecting rod (51).

6. The tower crane type folding scaffold according to claim 5, characterized in that: The limiting column (52) is slidably connected to the positioning groove (54), the limiting column (52) is slidably connected to the moving sleeve (4), and the ring (53) is in contact with the moving sleeve (4).

7. The tower crane type folding scaffold according to claim 5, characterized in that: One end of the spring (55) is fixedly connected to the limiting column (52), and the other end of the spring (55) is fixedly connected to the moving sleeve (4).

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