Steel pipe scaffold fixing fastener

Abstract

The utility model discloses a steel pipe scaffold fixing fastener and relates to the technical field of scaffold accessories, a mounting groove is formed in one end, far away from a pin shaft, of a fixed clamping plate, a T-shaped screw is movably inserted into the mounting groove, a U-shaped clamping groove is formed in one end, far away from the pin shaft, of a movable clamping plate, and the T-shaped screw is movably inserted into the U-shaped clamping groove. The threaded end of the T-shaped screw is located in the U-shaped clamping groove and provided with a fastener, the fastener comprises a nut screwed with the threaded end of the T-shaped screw and an elastic limiting piece installed on the nut, and the end, away from the pin shaft, of the movable clamping plate is further provided with a limiting groove used for limiting of the elastic limiting piece. The fastener is composed of the nut and the elastic limiting piece, the movable clamping plate is pre-positioned through the elastic limiting piece, and therefore the problem that after the movable clamping plate is rotated, a user needs to hold the movable clamping plate with hands and then tighten the nut, and operation is inconvenient is solved, and the difficulty of scaffold operation is lowered; and the convenience of locking the scaffold through the accessory fastening device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffolding accessories, in particular to a steel pipe scaffolding fixing fastener. Background Art

[0002] The scaffolding accessories fastening device locks the scaffolding steel pipe to ensure that the scaffolding can be firmly fixed together after installation to prevent the scaffolding components from loosening or moving during use.

[0003] When the traditional scaffolding accessory fastening device is used, the movable clamp needs to be tightened by hand to fix it after it is rotated. However, when holding it by hand, the worker's other hand needs to hold the electric wrench to operate it. However, there is a problem of shaking before the steel pipe is locked. It is difficult for the worker to hold the steel pipe and the movable clamp by hand, which causes the problem of time-consuming fixing of the expensive scaffolding.

[0004] Based on this, a scaffolding accessory fastening device composed of an elastic limiter and a nut is designed to solve the problem of needing to manually move the splint when the fastening device is fixed. Utility Model Content

[0005] The utility model aims at the deficiencies in the prior art and provides the following technical solutions: a steel pipe scaffolding fixing fastener, comprising two fixed clamps, a rotating shaft member rotatably installed between the two fixed clamps, a movable clamping plate rotatably installed at one end of the fixed clamps, and a pin shaft is installed in a hole provided between the fixed clamps and the movable clamping plate, a mounting groove is provided at one end of the fixed clamps away from the pin shaft, a T-shaped screw is movably inserted inside the mounting groove, a U-shaped slot is provided at one end of the movable clamping plate away from the pin shaft, and a fastener is installed in the threaded end of the T-shaped screw located in the U-shaped slot, the fastener comprises a nut screwed on the threaded end of the T-shaped screw, and an elastic limiter installed on the nut, and a limit slot for limiting the position of the elastic limiter is also provided at one end of the movable clamping plate away from the pin shaft.

[0006] As an improvement of the above technical solution, the elastic limiter includes a movable cavity at one end of the nut, a spring and a sleeve are movably installed in the movable cavity, and both ends of the spring are welded between the sleeve and the movable cavity, and a gasket is welded at the end of the sleeve away from the spring.

[0007] As an improvement of the above technical solution, a lifting handle is welded at the connection between the sleeve and the gasket, and the lifting handle is located in a U-shaped groove at one end of the movable clamping plate.

[0008] As an improvement of the above technical solution, the opposite surfaces of the fixed clamping plate and the movable clamping plate are both provided with arc-shaped clamping grooves for clamping outside the scaffolding.

[0009] As an improvement of the above technical solution, the surface of the arc-shaped groove of the movable clamping plate is provided with anti-slip strips for increasing friction resistance, and the anti-slip strips are distributed at equal intervals.

[0010] Beneficial effects of the utility model:

[0011] 1. A fastener installed by the threaded end of a T-screw, and the fastener is located in the U-shaped slot of the movable clamping plate, and the fastener is composed of a nut and an elastic limiter, so that when the movable clamping plate rotates around the rotating shaft at one end of the fixed clamping plate, the fastener is first limited in the limit slot by the elastic limiter, so that when the nut has not yet rotated at the end of the T-screw, the movable clamping plate is pre-positioned by the elastic limiter, thereby solving the problem of inconvenience caused by the user holding the movable clamping plate by hand and then tightening the nut after the movable clamping plate is rotated, reducing the difficulty of scaffolding operation and improving the convenience of locking the scaffolding through the accessory fastening device.

[0012] 2. An elastic limiter composed of a movable cavity, a spring, a sleeve, a gasket and a lifting handle is used. The sleeve is movably installed in the movable cavity opened at one end of the nut through a spring, and a gasket is welded at one end of the sleeve, so that the gasket can move with the sleeve when it is squeezed, and the sleeve is compressed with the spring when it moves inside the movable cavity, so that the sleeve can move with the gasket under the action of the spring, so that when the fastener screwed with the threaded end of the T-screw is located in the U-shaped groove of the movable splint, the lifting handle welded at the connection between the gasket and the sleeve is stuck in the limiting groove for limiting, so that the elastic limiter is connected to the movable splint, thereby solving the problem of needing to hold the nut by hand after the movable splint is rotated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0014] Figure 2 This is the main structural diagram of the utility model;

[0015] Figure 3 It is a three-dimensional structural diagram of the fastener in the utility model;

[0016] Figure 4 It is a cross-sectional structural diagram of the fastener in the utility model.

[0017] Figure numerals: 1. fixed splint; 2. rotating shaft; 3. movable splint; 4. pin; 5. mounting groove; 6. T-screw; 7. limiting groove; 8. fastener; 81. nut; 82. movable cavity; 83. spring; 84. sleeve; 85. gasket; 86. lifting handle; 9. anti-slip strip. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] See also Figure 1-4 The utility model provides a technical solution: a steel pipe scaffolding fixing fastener, comprising two fixed clamping plates 1, a rotating shaft 2 is rotatably installed between the two fixed clamping plates 1, a movable clamping plate 3 is rotatably installed at one end of the fixed clamping plate 1, and a pin 4 is installed in a hole opened between the fixed clamping plate 1 and the movable clamping plate 3, a mounting groove 5 is opened at one end of the fixed clamping plate 1 away from the pin 4, a T-screw 6 is movably inserted inside the mounting groove 5, a U-shaped groove is provided at one end of the movable clamping plate 3 away from the pin 4, and a fastener 8 is installed in the U-shaped groove at the threaded end of the T-screw 6, the fastener 8 comprises a nut 81 screwed on the threaded end of the T-screw 6, and an elastic limiter installed on the nut 81, and a limit groove 7 for limiting the position of the elastic limiter is also provided at one end of the movable clamping plate 3 away from the pin 4.

[0020] In this embodiment, the fastener 8 is installed by the threaded end of the T-screw 6, and the fastener 8 is located in the U-shaped groove of the movable clamping plate 3, and the fastener 8 is composed of a nut 81 and an elastic limiter, so that when the movable clamping plate 3 rotates around the rotating shaft 2 at one end of the fixed clamping plate 1, the fastener 8 is first limited in the limit groove 7 by the elastic limiter, so that when the nut 81 has not yet rotated at the end of the T-screw 6, the movable clamping plate 3 is pre-positioned by the elastic limiter, thereby solving the problem of the user needing to hold the movable clamping plate 3 by hand and then tighten the nut 81 after the movable clamping plate 3 is rotated, causing inconvenience in operation, reducing the difficulty of scaffolding operation, and improving the convenience of locking the scaffolding through the accessory fastening device.

[0021] Specifically, the elastic limiter includes a nut 81 at one end of which is opened a movable cavity 82, in which a spring 83 and a sleeve 84 are movably installed, and both ends of the spring 83 are welded between the sleeve 84 and the movable cavity 82, and a gasket 85 is welded at the end of the sleeve 84 away from the spring 83, and a lifting handle 86 is welded at the connection between the sleeve 84 and the gasket 85, and the lifting handle 86 is located in the U-shaped groove at one end of the movable clamping plate 3.

[0022] In this embodiment, an elastic limiter consisting of an active cavity 82, a spring 83, a sleeve 84, a gasket 85 and a lifting handle 86 is used, and the sleeve 84 is movably installed in the active cavity 82 opened at one end of the nut 81 through the spring 83, and a gasket 85 is welded at one end of the sleeve 84, so that when the gasket 85 is squeezed, it moves with the sleeve 84, and when the sleeve 84 moves inside the active cavity 82, it is compressed with the spring 83, so that the sleeve 84 moves with the gasket 85 under the action of the spring 83, so that when the fastener 8 screwed with the threaded end of the T-screw 6 is located in the U-shaped groove of the movable clamp plate 3, the lifting handle 86 welded at the connection between the gasket 85 and the sleeve 84 is stuck in the limit groove 7 for limiting, so that the elastic limiter is easy to be clamped with the movable clamp plate 3, thereby solving the problem of needing to hold the nut 81 by hand after the movable clamp plate 3 is rotated.

[0023] Specifically, the opposite surfaces of the fixed clamping plate 1 and the movable clamping plate 3 are provided with arc-shaped grooves for clamping outside the scaffolding, and the surface of the arc-shaped groove of the movable clamping plate 3 is provided with anti-slip strips 9 for increasing friction resistance, and the anti-slip strips 9 are distributed at equal intervals.

[0024] In this embodiment, arc-shaped grooves are provided on the opposite surfaces of the fixed clamping plate 1 and the movable clamping plate 3, and the surface of the arc-shaped groove of the movable clamping plate 3 is provided with an anti-slip strip 9, so that when the fastening device locks the scaffolding, the friction coefficient of the contact with the scaffolding is increased through the anti-slip strip 9, thereby improving the reliability of locking the scaffolding.

[0025] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A steel pipe scaffold fixing fastener, comprising two fixed clamping plates (1), characterized in that: A rotating shaft (2) is rotatably installed between the two fixed clamping plates (1), a movable clamping plate (3) is rotatably installed at one end of the fixed clamping plate (1), and a pin shaft (4) is installed in a hole provided between the fixed clamping plate (1) and the movable clamping plate (3), a mounting groove (5) is provided at one end of the fixed clamping plate (1) away from the pin shaft (4), a T-shaped screw (6) is movably inserted inside the mounting groove (5), a U-shaped groove is provided at one end of the movable clamping plate (3) away from the pin shaft (4), and a fastener (8) is installed in the U-shaped groove at the threaded end of the T-shaped screw (6), the fastener (8) comprises a nut (81) screwed on the threaded end of the T-shaped screw (6), and an elastic limiting member installed on the nut (81), and a limiting groove (7) for limiting the elastic limiting member is also provided at one end of the movable clamping plate (3) away from the pin shaft (4).

2. A steel pipe scaffolding fixing fastener according to claim 1, characterized in that: The elastic limiting member comprises a nut (81) having an active cavity (82) at one end, a spring (83) and a sleeve (84) being movably installed in the active cavity (82), and two ends of the spring (83) being welded between the sleeve (84) and the active cavity (82), and a gasket (85) being welded at one end of the sleeve (84) away from the spring (83).

3. A steel pipe scaffolding fixing fastener according to claim 2, characterized in that: A lifting handle (86) is welded at the connection between the sleeve (84) and the gasket (85), and the lifting handle (86) is located in a U-shaped slot at one end of the movable clamping plate (3).

4. A steel pipe scaffolding fixing fastener according to claim 1, characterized in that: The opposite surfaces of the fixed clamping plate (1) and the movable clamping plate (3) are both provided with arc-shaped clamping grooves for clamping outside the scaffold.

5. A steel pipe scaffold fixing fastener according to claim 4, characterized in that: The surface of the arc-shaped clamping groove of the movable clamping plate (3) is provided with anti-slip strips (9) for increasing friction resistance, and the anti-slip strips (9) are distributed at equal intervals.

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