Scaffold tie rod convenient to install

Abstract

The utility model discloses a scaffold tie rod convenient to install, which belongs to the field of scaffolds and comprises a core rod, a pull rod and a sleeve rod which are sequentially sleeved, the inner end of the pull rod is rotatably connected with a plurality of pull claws, connecting rods corresponding to the pull claws are arranged on the core rod, one end of each connecting rod is rotatably connected to the inner end of the core rod, and the other end of each connecting rod is rotatably connected to the corresponding pull claw. The multiple pull claws are turned over along with axial movement of the core rod, the core rod is tensioned outwards by screwing the second press-fitting nut at the outer end of the core rod, the multiple pull claws can be opened to provide a pulling effect, and the sleeve rod is pressed on the outer vertical face of a wall by screwing the first press-fitting nut at the outer end of the pull rod. The scaffold tie rod can be operated and installed only by a single person, so that manpower is saved, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding, and more specifically, to a scaffolding tie rod that is easy to install. Background Technology

[0002] Existing scaffolding tie rods have a simple structure, typically consisting of tie rods and sleeves fitted onto the tie rods. After the tie rods are passed through the pre-embedded pipes in the wall, two workers are needed to install nuts on both ends of the tie rods, one inside and one outside the wall, in order to press the sleeves tightly against the outer surface of the wall. It is evident that existing scaffolding tie rods not only waste manpower during installation but also have low installation efficiency. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an easy-to-install scaffolding tie rod, aiming to save manpower and improve installation efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A scaffold tie rod that is easy to install includes a tie rod, a core rod, and a sleeve rod. The inner end of the tie rod is fixedly connected to a plurality of first pins. Each first pin is arranged along the circumferential tangent direction of the tie rod. Each first pin is rotatably connected to a pull claw. The end of the pull claw away from the first pin is fixedly connected to a second pin parallel to the first pin.

[0006] The core rod is movably sleeved inside the pull rod. Each pull claw on the core rod is provided with a connecting rod. One end of the connecting rod is fixedly connected to a third pin parallel to the second pin. The third pin is rotatably connected to the inner end of the core rod. The other end of the connecting rod is rotatably connected to the second pin.

[0007] The sleeve is movably sleeved on the outside of the pull rod, and the pull rod is provided with an axial limiting structure between itself and the core rod and the sleeve.

[0008] Preferably, the connecting rod is inclined from the inside out in a direction away from the core rod.

[0009] Preferably, the outer end of the core rod is threaded with a second press-fit nut, which is used to press the outer end face of the pull rod inward.

[0010] Preferably, the outer end of the core rod is also threaded with a second anti-reverse nut, which is used to press the second press-fit nut inward.

[0011] Preferably, a pressure block is sleeved on the outer end of the pull rod, and a first press-fit nut is threadedly connected to the outer end of the pull rod. The first press-fit nut is used to press the pressure block inward against the outer end face of the sleeve rod.

[0012] Preferably, the outer end of the pull rod is also threaded with a first anti-reverse nut, which is used to press the first press-fit nut inward.

[0013] Preferably, a pressure plate is fixedly provided at the inner end of the sleeve rod, and the pressure plate is used to press against the outer facade of the wall.

[0014] The present invention adopts the above technical solution and has the following advantages compared with the prior art:

[0015] During installation, the scaffold tie rod is designed to allow multiple claws at the inner end of the tie rod to retract by pressing the core rod inward. This facilitates the tie rod's passage through the pre-embedded pipe in the wall. Subsequently, tightening the second press-fit nut pulls the core rod outward, keeping the claws open and preventing the tie rod from slipping out of the pre-embedded pipe. The installation process requires no assistance from personnel inside the wall and can be operated by a single person outside the wall, saving manpower and effectively improving installation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram and a partial enlarged view of one of the states of a scaffold tie rod that is easy to install according to this utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the second state of the tie rod of the medium scaffolding;

[0018] Figure 3 for Figure 2 A longitudinal sectional view of the scaffold tie rod installed on the wall.

[0019] In the picture,

[0020] 10-Pull rod; 11-First pin; 12-Pull claw; 121-Second pin; 13-Pressure block; 14-First press-fit nut; 15-First anti-reverse nut; 20-Core rod; 21-Connecting rod; 211-Third pin; 22-Second press-fit nut; 23-Second anti-reverse nut; 30-Sleeve rod; 31-Pressure plate; 40-Wall; 41-Embedded pipe. Detailed Implementation

[0021] The specific embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0022] like Figures 1-3As shown, a scaffolding tie rod that is easy to install includes a tie rod 10, a core rod 20, and a sleeve rod 30. The core rod 20 is movably sleeved inside the tie rod 10, and the sleeve rod 30 is movably sleeved outside the tie rod 10. Since the tie rod 10, the core rod 20, and the sleeve rod 30 are all installed perpendicular to the wall 40, the end names of the tie rod 10, the core rod 20, and the sleeve rod 30 are distinguished by the inside and outside directions of the wall 40. The end pointing to the inside of the wall 40 is the inner end, and the end pointing to the outside of the wall 40 is the outer end.

[0023] A plurality of first pins 11 are fixedly connected to the inner end of the pull rod 10. Each first pin 11 is arranged along the circumferential tangent direction of the pull rod 10. A pull claw 12 is rotatably connected to each first pin 11. A second pin 121 is fixedly connected to the end of the pull claw 12 away from the first pin 11. A connecting rod 21 is provided on the core rod 20 corresponding to each pull claw 12. The connecting rod 21 is inclined from the inside to the outside in the direction away from the core rod 20. A third pin 211 is fixedly connected to its inner end. The third pin 211 is rotatably connected to the core rod 20. The inner end of the connecting rod 21 is rotatably connected to the second pin 121. The second pin 121 and the third pin 211 are both arranged parallel to the first pin 11. Based on the above structure, when the core rod 20 moves outward relative to the pull rod 10, the connecting rod 21 pushes the pull claw 12 outward, causing multiple pull claws 12 to flip outward and open. When the core rod 20 moves inward relative to the pull rod 10, the connecting rod 21 pulls the pull claw 12 inward, causing multiple pull claws 12 to flip inward and close.

[0024] An axial limiting structure is provided between the core rod 20 and the pull rod 10. Specifically, the outer end of the core rod 20 is threaded with a second press-fit nut 22 and a second anti-reverse nut 23. The second press-fit nut 22 is used to press the outer end face of the pull rod 10 inward, thereby pulling the core rod 20 outward. The second anti-reverse nut 23 is located outside the second press-fit nut 22 and is used to press the second press-fit nut 22 inward to prevent the second press-fit nut 22 from loosening.

[0025] The sleeve rod 30 is located on the outside of the wall 40. An axial limiting structure is also provided between the pull rod 10 and the sleeve rod 30. Specifically, the outer end of the pull rod 10 is fitted with a pressure block 13 and threadedly connected with a first press-fit nut 14 and a first anti-reverse nut 15. The first press-fit nut 14 is located on the outside of the pressure block 13. The pressure block 13 is pressed inward by the first press-fit nut 14, and then the outer end face of the sleeve rod 30 is pressed inward by the pressure block 13, so that the inner end of the sleeve rod 30 can be pressed against the outer surface of the wall 40. Preferably, a pressure plate 31 is fixedly provided on the inner end of the sleeve rod 30. The pressure plate 31 is pressed against the outer surface of the wall, which can increase the stability of the sleeve rod 30. The first anti-reverse nut 15 is located on the outside of the first press-fit nut 14. The first anti-reverse nut 15 is used to press the first press-fit nut 14 inward to prevent the first press-fit nut 14 from loosening.

[0026] During installation, first loosen the second press-fit nut 22 and the second anti-reverse nut 23, press the core rod 20 inward to retract the multiple pull claws 12, insert the pull rod 10 from the outside to the inside into the pre-embedded pipe 41 on the wall 40, then tighten the second press-fit nut 22 and the second anti-reverse nut 23, pull the core rod 20 outward to keep the multiple pull claws 12 open, and use the multiple pull claws 12 to prevent the pull rod 10 from sliding out of the pre-embedded pipe 41. Then tighten the first press-fit nut 14 and the first anti-reverse nut 15 until the sleeve rod 30 is firmly pressed against the outer surface of the wall 40. Use cross couplers to connect the structural rods in the scaffolding to the sleeve rod 30, and rely on the sleeve rod 30 to provide a tying effect for the scaffolding.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A scaffolding tie rod that is easy to install, characterized in that: The assembly includes a pull rod (10), a core rod (20), and a sleeve rod (30). The inner end of the pull rod (10) is fixedly connected to a plurality of first pins (11). Each first pin (11) is arranged along the circumferential tangent direction of the pull rod (10). Each first pin (11) is rotatably connected to a pull claw (12). The end of the pull claw (12) away from the first pin (11) is fixedly connected to a second pin (121) parallel to the first pin (11). The core rod (20) is movably sleeved inside the pull rod (10). The core rod (20) is provided with connecting rods (21) corresponding to each pull claw (12). One end of the connecting rod (21) is fixedly connected to a third pin (211) parallel to the second pin (121). The third pin (211) is rotatably connected to the inner end of the core rod (20). The other end of the connecting rod (21) is rotatably connected to the second pin (121). The sleeve (30) is movably sleeved on the outside of the pull rod (10), and the pull rod (10) is provided with an axial limiting structure between itself and the core rod (20) and the sleeve (30).

2. The scaffolding tie rod as described in claim 1, characterized in that: The connecting rod (21) is inclined from the inside out in a direction away from the core rod (20).

3. A scaffolding tie rod that is easy to install as described in claim 2, characterized in that: The outer end of the core rod (20) is threaded with a second press-fit nut (22), which is used to press the outer end face of the pull rod (10) inward.

4. A scaffolding tie rod that is easy to install as described in claim 3, characterized in that: The outer end of the core rod (20) is also threaded with a second anti-reverse nut (23), which is used to press the second press-fit nut (22) inward.

5. A scaffolding tie rod that is easy to install as described in claim 1, characterized in that: The outer end of the pull rod (10) is fitted with a pressure block (13), and the outer end of the pull rod (10) is threaded with a first press-fit nut (14). The first press-fit nut (14) is used to press the pressure block (13) inward on the outer end face of the sleeve rod (30).

6. A scaffolding tie rod that is easy to install as described in claim 5, characterized in that: The outer end of the pull rod (10) is also threaded with a first anti-reverse nut (15), which is used to press the first press-fit nut (14) inward.

7. A scaffolding tie rod that is easy to install as described in claim 1, characterized in that: The inner end of the sleeve rod (30) is fixedly provided with a pressure plate (31), which is used to press against the outer facade of the wall.

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