Anti-falling steel pipe scaffolding fastener

Abstract

The utility model relates to the technical field of scaffolding fasteners, and proposes an anti-falling steel pipe scaffolding fastener, comprising two clamping mechanisms, a connecting mechanism for connecting the two clamping mechanisms is arranged between the two clamping mechanisms, the clamping mechanism comprises a clamping plate 1 and a clamping plate 2 for clamping the steel pipe, the bottom end of the clamping plate 1 and the bottom end of the clamping plate 2 are hinged, the top ends of the clamping plate 1 and the clamping plate 2 are fixedly connected with a positioning plate, a positioning bolt is threadedly connected between the two positioning plates, and an anti-falling component for preventing the steel pipe from falling off is arranged on the inner side of the clamping plate 2. The utility model fixes the two positioning plates by the positioning bolts, so that the clamping plates 1 and 2 clamp the steel pipe, and the anti-falling component can further increase the static friction between the steel pipe and the clamping plates 1 and 2, and solves the problem of insufficient static friction between the inner wall of the clamping plate and the steel pipe in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffold fasteners, and in particular to an anti-falling steel pipe scaffold fastener. Background Art

[0002] Fasteners generally refer to the intermediate connecting parts between two components. In construction projects, they are mostly used to fix steel pipe scaffolding. Fasteners are divided into right-angle fasteners, rotating fasteners, butt fasteners, etc.

[0003] After searching, the Chinese patent publication number CN217518136U discloses "an anti-falling steel pipe scaffolding fastener plate, including a first clamping plate, a first clamping device is arranged at the right end of the first clamping plate, a fixed disk is fixedly installed at the middle part of the left end of the first clamping plate, a movable disk is movably connected to the left end of the fixed disk, a second clamping plate is fixedly installed at the left end of the movable disk, a second clamping device is arranged at the left end of the second clamping plate, and a limiting device is arranged at the front left part of the second clamping device and the upper right part of the first clamping device".

[0004] The above patent fixes the first clamping arc plate and the first clamping plate together through the first limiting screw and the first nut, thereby improving the clamping stability of the fastener, and at the same time, a limiting frame is provided to limit the first nut to prevent the steel pipe from falling off. After the steel pipe is inserted into the first clamping arc plate and the first clamping plate, the static friction between the steel pipe and the first clamping arc plate and the inner wall of the first clamping plate is mainly increased to keep the steel pipe stable. However, since the inner wall of the clamping arc plate is a smooth arc surface, the static friction between the inner wall of the clamping arc plate and the steel pipe is insufficient, and it is easy for the steel pipe and the clamping arc plate to fall off under the action of external force, thereby posing certain safety hazards. Utility Model Content

[0005] The utility model provides an anti-falling steel pipe scaffold fastener, which solves the problem of insufficient static friction between the inner wall of the clamping plate and the steel pipe in the prior art.

[0006] The technical solution of the utility model is as follows: an anti-falling steel pipe scaffolding fastener, comprising two clamping mechanisms, a connecting mechanism for connecting the two clamping mechanisms is arranged between the two clamping mechanisms, the clamping mechanism comprises a clamping plate 1 and a clamping plate 2 for clamping the steel pipe, the bottom end of the clamping plate 1 and the bottom end of the clamping plate 2 are hinged, the top ends of the clamping plate 1 and the clamping plate 2 are fixedly connected with a positioning plate, a positioning bolt is threadedly connected between the two positioning plates, and an anti-falling component for preventing the steel pipe from falling is arranged on the inner side of the clamping plate 2.

[0007] Preferably, the inner walls of the first and second clamping plates are both arc-shaped structures, and the curvatures of the inner walls of the two are the same.

[0008] Preferably, the anti-slip assembly includes a ratchet, the inner wall of the second card plate is provided with a mounting groove which penetrates the inner wall of the second card plate, the ratchet is rotatably connected to the inner side of the mounting groove, the outer edge of the ratchet can interfere with the steel pipe, the outer side of the second card plate is fixedly connected with a fixing frame, and the inner side of the fixing frame is provided with a limit piece for limiting the clockwise rotation of the ratchet.

[0009] Preferably, the diameter of the ratchet is larger than the width of the mounting groove, and the outer edge of the ratchet is located on the inner side of the fixing frame.

[0010] Preferably, the limiting member includes a pawl, which is rotatably connected to the inner side of the fixed frame through a pin shaft, and the pawl is slidingly matched with the tooth groove of the ratchet wheel. A coil spring is sleeved on the pin shaft of the pawl, and one end of the coil spring is fixedly connected to the bottom wall on the inner side of the fixed frame, and the other end of the coil spring is fixedly connected to the pawl.

[0011] Preferably, the limiting member further comprises a rotating cap, the rotating cap is coaxially fixedly connected to the pawl, and the rotating cap is located above the fixed frame.

[0012] Preferably, the connecting mechanism includes a mounting seat, which is fixedly connected to the outer side of one of the clamping plates, one side of the mounting seat is rotatably connected to an internally threaded sleeve, the inner side of the internally threaded sleeve is threadedly connected to an externally threaded sleeve rod, and one end of the externally threaded sleeve rod is fixedly connected to the outer wall of the other clamping plate one.

[0013] Preferably, the length of the externally threaded sleeve is the same as that of the internally threaded sleeve, and both are located at the center of the outer wall of the corresponding clamping plate.

[0014] The technical effects and advantages of the utility model are as follows: by rotating the clamping plate one and the clamping plate two towards each other, the positioning plates on the top of the clamping plate one and the clamping plate two are brought into contact, and then the steel pipe is inserted into the inner sides of the clamping plate one and the clamping plate two, and then the two positioning plates are fixed by positioning bolts, so that the clamping plate one and the clamping plate two clamp the steel pipe, and the anti-detachment component can further increase the static friction between the steel pipe and the clamping plate one and the clamping plate two, effectively avoiding the problem of the steel pipe being detached from the clamping plate one and the clamping plate two under the action of external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of an anti-falling steel pipe scaffolding fastener.

[0016] Figure 2 It is a structural schematic diagram of the clamping mechanism of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the anti-slip assembly of the utility model.

[0018] Figure 4It is a structural schematic diagram of the limiter of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the connecting mechanism of the utility model.

[0020] The accompanying drawings are marked as follows: 1. clamping mechanism; 11. clamping plate 1; 12. clamping plate 2; 13. positioning plate; 14. positioning bolt; 15. anti-slip assembly; 151. ratchet; 152. mounting groove; 153. fixing frame; 154. limiting member; 1541. pawl; 1542. coil spring; 1543. rotating cap; 2. connecting mechanism; 21. mounting seat; 22. internally threaded sleeve; 23. externally threaded sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1 - Figure 2 The utility model provides an anti-falling steel pipe scaffolding fastener, comprising two clamping mechanisms 1, a connecting mechanism 2 for connecting the two clamping mechanisms 1 is arranged between the two clamping mechanisms 1, the clamping mechanism 1 comprises a clamping plate 11 and a clamping plate 2 12 for clamping the steel pipe, the bottom end of the clamping plate 11 and the bottom end of the clamping plate 2 12 are hinged, the inner walls of the clamping plate 11 and the clamping plate 2 12 are both arc-shaped structures, and the curvature of the inner walls of the two are the same, the top ends of the clamping plates 11 and the clamping plates 2 12 are fixedly connected with positioning plates 13, a positioning bolt 14 is threadedly connected between the two positioning plates 13, and an anti-falling component 15 for preventing the steel pipe from falling is arranged on the inner side of the clamping plate 2 12. By rotating the clamping plate 11 and the clamping plate 2 12 towards each other, the positioning plates 13 on the tops of the clamping plates 11 and 12 are brought into contact, and then the steel pipe is inserted into the inner sides of the clamping plates 11 and 12, and then the two positioning plates 13 are fixed by the positioning bolts 14, so that the clamping plates 11 and 12 clamp the steel pipe, and the anti-detachment component 15 can further increase the static friction between the steel pipe and the clamping plates 11 and 12, effectively avoiding the problem of the steel pipe being detached from the clamping plates 11 and 12 under the action of external force.

[0023] Reference Figure 3 - Figure 4The anti-slip assembly 15 includes a ratchet 151. The inner wall of the second card plate 12 is provided with a mounting groove 152 that penetrates the inner wall of the second card plate 12. The ratchet 151 is rotatably connected to the inner side of the mounting groove 152. The outer edge of the ratchet 151 can contact the steel pipe. The diameter of the ratchet 151 is larger than the width of the mounting groove 152. The outer edge of the ratchet 151 is located on the inner side of the fixed frame 153. The outer side of the second card plate 12 is fixedly connected with the fixed frame 153. The inner side of the fixed frame 153 is provided with a limiter 1 for limiting the clockwise rotation of the ratchet 151. 54. The limiting member 154 includes a pawl 1541, which is rotatably connected to the inner side of the fixed frame 153 through a pin shaft, and the pawl 1541 is slidably matched with the tooth groove of the ratchet 151. A coil spring 1542 is sleeved on the pin shaft of the pawl 1541, and one end of the coil spring 1542 is fixedly connected to the bottom wall on the inner side of the fixed frame 153, and the other end of the coil spring 1542 is fixedly connected to the pawl 1541. A rotating cap 1543 is arranged above the fixed frame 153, and the rotating cap 1543 is coaxially fixedly connected to the pawl 1541.

[0024] When the steel pipe is inserted into the inner side of the clamping plate 11 and the clamping plate 2, the steel pipe will contact with the ratchet 151 and act on the ratchet 151 to rotate counterclockwise. After the steel pipe is inserted into the inner side of the clamping plate 11 and the clamping plate 2, the two positioning plates 13 are fixed by the positioning bolts 14, which increases the static friction between the steel pipe and the ratchet 151. Since the pawl 154 can limit the clockwise rotation of the ratchet 151, the ratchet 151 will limit the reverse sliding of the steel pipe and the separation from the clamping plate 11 and the clamping plate 2, which greatly improves the stability of the steel pipe.

[0025] Reference Figure 5 The connection mechanism 2 includes a mounting seat 21, which is fixedly connected to the outside of one of the clamping plates 11. One side of the mounting seat 21 is rotatably connected to an internal threaded sleeve 22, and the internal side of the internal threaded sleeve 22 is threadedly connected to an external threaded sleeve rod 23. One end of the external threaded sleeve rod 23 is fixedly connected to the outer wall of the other clamping plate 11. The length of the external threaded sleeve rod 23 is the same as that of the internal threaded sleeve 22, and both are located at the center of the outer wall of the corresponding clamping plate 11. The internal threaded sleeve 22 on one of the clamping plates 11 is threadedly matched with the external threaded sleeve rod 23 on the other clamping plate 11 to complete the connection of the two clamping mechanisms 1. At the same time, the internal threaded sleeve 22 can be rotated, which allows the two clamping mechanisms 1 to rotate relative to each other, and the installation angle of the two steel pipes can be adjusted, so as to meet different actual installation requirements.

[0026] The working principle of the utility model is as follows: when installing the steel pipe, by rotating the clamping plate 11 and the clamping plate 2 12 towards each other, the positioning plates 13 on the tops of the clamping plates 11 and the clamping plates 2 12 are in contact, and then the steel pipe is inserted into the inner sides of the clamping plates 11 and the clamping plates 2 12, the steel pipe will contact the ratchet 151 and will act on the ratchet 151 to make it rotate counterclockwise. After the steel pipe is inserted into the inner sides of the clamping plates 11 and the clamping plates 2 12, the two positioning plates 13 are fixed by the positioning bolts 14, so that the clamping plates 11 and the clamping plates 2 12 clamp the steel pipe, which increases the static friction between the steel pipe and the ratchet 151. Since the pawl 154 can limit the clockwise rotation of the ratchet 151, the ratchet 151 can limit the reverse sliding of the steel pipe and the separation from the clamping plates 11 and the clamping plates 2 12, which greatly improves the stability of the steel pipe, thereby avoiding the problem of the steel pipe being separated from the clamping plates 11 and the clamping plates 2 12 under the action of external force.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-falling steel pipe scaffolding fastener, comprising two clamping mechanisms (1), a connecting mechanism (2) for connecting the two clamping mechanisms (1) is arranged between the two clamping mechanisms (1), characterized in that: The clamping mechanism (1) comprises a clamping plate 1 (11) and a clamping plate 2 (12) for clamping a steel pipe, the bottom end of the clamping plate 1 (11) and the bottom end of the clamping plate 2 (12) are hinged, the top ends of the clamping plate 1 (11) and the clamping plate 2 (12) are fixedly connected with a positioning plate (13), a positioning bolt (14) is threadedly connected between the two positioning plates (13), and an anti-drop component (15) for preventing the steel pipe from falling off is arranged on the inner side of the clamping plate 2 (12).

2. The anti-falling steel pipe scaffolding fastener according to claim 1 is characterized in that: The inner walls of the first clamping plate (11) and the second clamping plate (12) are both arc-shaped structures, and the curvature of the inner walls of the two is the same.

3. The anti-falling steel pipe scaffolding fastener according to claim 1 is characterized in that: The anti-slip assembly (15) comprises a ratchet (151); the inner wall of the second clamping plate (12) is provided with a mounting groove (152) penetrating the inner wall of the second clamping plate (12); the ratchet (151) is rotatably connected to the inner side of the mounting groove (152); the outer edge of the ratchet (151) can contact the steel pipe; the outer side of the second clamping plate (12) is fixedly connected with a fixing frame (153); the inner side of the fixing frame (153) is provided with a limiting member (154) for limiting the clockwise rotation of the ratchet (151).

4. The anti-falling steel pipe scaffolding fastener according to claim 3 is characterized in that: The diameter of the ratchet (151) is greater than the width of the mounting groove (152), and the outer edge of the ratchet (151) is located on the inner side of the fixing frame (153).

5. The anti-falling steel pipe scaffolding fastener according to claim 3 is characterized in that: The limiting member (154) comprises a pawl (1541), wherein the pawl (1541) is rotatably connected to the inner side of the fixed frame (153) via a pin shaft, and the pawl (1541) is slidably matched with the tooth groove of the ratchet wheel (151), and a coil spring (1542) is sleeved on the pin shaft of the pawl (1541), and one end of the coil spring (1542) is fixedly connected to the bottom wall inside the fixed frame (153), and the other end of the coil spring (1542) is fixedly connected to the pawl (1541).

6. The anti-falling steel pipe scaffolding fastener according to claim 5 is characterized in that: The limiting member (154) further comprises a rotating cap (1543), wherein the rotating cap (1543) is coaxially fixedly connected to the pawl (1541), and the rotating cap (1543) is located above the fixed frame (153).

7. The anti-falling steel pipe scaffolding fastener according to claim 1 is characterized in that: The connection mechanism (2) comprises a mounting seat (21), the mounting seat (21) being fixedly connected to the outer side of one of the clamping plates (11), one side of the mounting seat (21) being rotatably connected to an internally threaded sleeve (22), the inner side of the internally threaded sleeve (22) being threadedly connected to an externally threaded sleeve rod (23), one end of the externally threaded sleeve rod (23) being fixedly connected to the outer wall of the other clamping plate (11).

8. The anti-falling steel pipe scaffolding fastener according to claim 7 is characterized in that: The length of the external threaded sleeve (23) is the same as that of the internal threaded sleeve (22), and both are located at the center of the outer wall of the corresponding clamping plate (11).

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