Scaffold stability testing machine

Abstract

The utility model discloses a scaffold stability testing machine which comprises a bottom plate, an annular frame is fixedly connected to the upper surface of the bottom plate, a frame body is fixedly connected to the position, located in the annular frame, of the upper surface of the bottom plate, a placing plate used for placing a scaffold is arranged in the frame body, and the placing plate is connected with the frame body through an adjusting assembly. The upper surface of the annular frame is rotationally connected with a gear ring, and the upper surface of the gear ring is fixedly connected with a fixing rod. The scaffold wind resistance testing machine can not only carry out wind resistance testing on a scaffold and avoid rollover of the scaffold during use so as to realize detection of wind resistance stability of the scaffold, but also can be used for simulating a ground with a gradient, so that testing of different grounds on the scaffold is facilitated, the using effect of the testing machine is improved, and the testing efficiency is improved. And the blowing range of the electric fan can be expanded, so that the wind resistance stability of the scaffold can be better tested, and the testing effect of the testing machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffold testing, in particular to a scaffold stability testing machine. Background Technique

[0002] A scaffold is a working platform erected to ensure the smooth progress of each construction process. It can be divided into an external scaffold and an internal scaffold according to the erection position, and can be divided into a wooden scaffold, a bamboo scaffold, and a steel pipe scaffold according to different materials.

[0003] The existing scaffold testing machine conducts mechanical property tests on the anti-slip, anti-destruction, torsional stiffness, tensile, and compressive properties of right-angle fasteners, swivel fasteners, butt joints, and bases for scaffolds, but does not test the wind resistance stability of the assembled scaffold. In case of windy weather, there may be a risk of the scaffold tipping over, which may further threaten the lives of construction workers. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a scaffold stability testing machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A scaffold stability testing machine includes a bottom plate. The upper surface of the bottom plate is fixedly connected with an annular frame. The upper surface of the bottom plate at a position inside the annular frame is fixedly connected with a frame body. A placing plate for placing a scaffold is arranged inside the frame body. The placing plate is connected with the frame body through an adjusting component to change the levelness of the placing plate. The upper surface of the annular frame is rotatably connected with a toothed ring. The upper surface of the toothed ring is fixedly connected with a fixed rod. A chute is arranged on one side of the fixed rod. A sliding frame is slidably connected inside the chute. One side of the sliding frame is fixedly connected with an electric fan. A spring is fixedly connected to the top of the sliding frame and is fixed to the fixed rod. A power component for driving the electric fan to rotate is arranged on the top of the annular frame. A guiding component for changing the rotation trajectory of the electric fan is arranged on the upper surface of the annular frame.

[0007] As a further scheme of the utility model, the adjusting component includes a plurality of lead screws. A plurality of threaded holes are arranged on the upper surface of the frame body. The plurality of lead screws are respectively threadedly connected in the plurality of threaded holes. A plurality of conical grooves are arranged on the upper surface of the placing plate. The plurality of lead screws respectively pass through the plurality of conical grooves. The bottom ends of the plurality of lead screws are fixedly connected with balls for supporting the placing plate, and the diameter of the balls is larger than the diameter of the conical grooves.

[0008] As a further solution of the present utility model, the power assembly includes a fixed frame fixedly connected to the top of the annular frame. A motor is fixedly connected inside the fixed frame. One end of the output shaft of the motor passes through the annular frame and is key-connected with a gear, and the gear meshes with the toothed ring.

[0009] As a further solution of the present utility model, the guiding assembly includes a plurality of support rods, and all of the plurality of support rods are fixedly connected to the upper surface of the annular frame. A guide rail is fixedly connected between the plurality of support rods, and the sliding frame is slidably connected to the guide rail, so that the sliding frame rotates along the track of the guide rail.

[0010] As a further solution of the present utility model, the plurality of support rods are annularly distributed, and the guide rail is annularly corrugated.

[0011] As a further solution of the present utility model, a plurality of rolling grooves are formed at positions of both sides of the sliding frame located in the sliding groove, and a plurality of balls are rotatably connected in the plurality of rolling grooves.

[0012] As a further solution of the present utility model, a guide rod is fixedly connected inside the sliding groove, and the guide rod passes through the spring and the sliding frame.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. Through the setting of the electric fan, when the electric fan rotates, it blows air towards the scaffolding, thereby enabling the wind resistance test of the scaffolding, avoiding the lateral overturning of the scaffolding during use, and thus realizing the detection of the wind resistance stability of the scaffolding.

[0015] 2. Through the setting of the adjusting assembly, the adjusting assembly can change the levelness of the placement plate, thereby being used to simulate the ground with a slope, facilitating the testing of the scaffolding on different grounds, and improving the use effect of the testing machine.

[0016] 3. Through the setting of the guiding assembly, during the rotation of the electric fan, the guiding assembly can change the rotation trajectory of the electric fan, thereby expanding the blowing range of the electric fan, and further better testing the wind resistance stability of the scaffolding, and improving the testing effect of the testing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front three-dimensional structural schematic diagram of a scaffolding stability testing machine proposed by the present utility model;

[0018] Figure 2 It is a sectional structural schematic diagram of the annular frame of a scaffolding stability testing machine proposed by the present utility model;

[0019] Figure 3 It is a partially enlarged structural schematic diagram of part A of a scaffolding stability testing machine proposed by the present utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the placement plate of a scaffolding stability testing machine proposed by the present utility model.

[0021] In the figure: 1, bottom plate; 2, fixing frame; 3, gear; 4, annular frame; 5, support rod; 6, toothed ring; 7, guide rail; 8, frame body; 9, placement plate; 10, fixing rod; 11, guide rod; 12, spring; 13, chute; 14, ball; 15, rolling groove; 16, sliding frame; 17, electric fan; 18, conical groove; 19, round bead; 20, lead screw. Specific embodiments

[0022] 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. The described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, 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.

[0023] Refer to Figures 1-4 , a scaffolding stability testing machine, including a bottom plate 1. The upper surface of the bottom plate 1 is fixed with an annular frame 4 by bolts. The upper surface of the bottom plate 1 at a position inside the annular frame 4 is fixed with a frame body 8 by bolts. A placement plate 9 for placing the scaffolding is arranged inside the frame body 8. The placement plate 9 is connected to the frame body 8 through an adjustment component to change the levelness of the placement plate 9. The upper surface of the annular frame 4 is rotatably connected with a toothed ring 6. The upper surface of the toothed ring 6 is welded with a fixing rod 10. A chute 13 is opened on one side of the fixing rod 10. A sliding frame 16 is slidably connected inside the chute 13. An electric fan 17 is fixed on one side of the sliding frame 16 by bolts. A spring 12 is welded on the top of the sliding frame 16 and is fixed to the fixing rod 10. A power component for driving the electric fan 17 to rotate is arranged on the top of the annular frame 4. A guiding component for changing the rotation trajectory of the electric fan 17 is arranged on the upper surface of the annular frame 4. Place the scaffolding on the placement plate 9, then start the electric fan 17 to blow air towards the scaffolding. At the same time, drive the toothed ring 6 to rotate through the power component. The toothed ring 6 drives the fixing rod 10 to rotate. The fixing rod 10 drives the sliding frame 16 to rotate. The sliding frame 16 drives the electric fan 17 to rotate, so that the electric fan 17 blows air around the scaffolding to conduct a wind resistance test on the scaffolding, avoiding the scaffolding from tipping over during use, thereby realizing the detection of the wind resistance stability of the scaffolding.

[0024] In the present utility model, the adjusting assembly includes a plurality of lead screws 20. A plurality of threaded holes are formed in the upper surface of the frame body 8. The plurality of lead screws 20 are respectively threadedly connected in the plurality of threaded holes. A plurality of conical grooves 18 are formed in the upper surface of the placing plate 9. The plurality of lead screws 20 respectively pass through the plurality of conical grooves 18. A ball 19 for supporting the placing plate 9 is welded to the bottom end of each of the plurality of lead screws 20, and the diameter of the ball 19 is larger than the diameter of the conical groove 18. After placing the scaffold on the placing plate 9, two of the lead screws 20 can be rotated. The two lead screws 20 will move downward through the threaded engagement with the threaded holes and drive the balls 19 to move downward. At this time, the lead screws 20 will no longer be perpendicular to the conical grooves 18, so that the placing plate 9 will tilt slightly to simulate an uneven ground;

[0025] The power assembly includes a fixed frame 2. The fixed frame 2 is fixed to the top of the annular frame 4 by bolts. A motor is fixed in the fixed frame 2 by bolts. One end of the output shaft of the motor passes through the annular frame 4 and is key-connected with a gear 3, and the gear 3 meshes with the toothed ring 6. By driving the gear 3 to rotate by the motor, the gear 3 drives the toothed ring 6 to rotate. The guiding assembly includes a plurality of support rods 5. The plurality of support rods 5 are all welded to the upper surface of the annular frame 4. A guide rail 7 is fixed between the plurality of support rods 5 by bolts, and the sliding frame 16 is slidably connected to the guide rail 7, so that the sliding frame 16 rotates along the track of the guide rail 7. The plurality of support rods 5 are annularly distributed, and the guide rail 7 is annularly corrugated. During the rotation of the sliding frame 16, the sliding frame 16 will rotate along the track of the guide rail 7, so that the sliding frame 16 makes a reciprocating movement up and down in the chute 13, expanding the blowing range of the electric fan 17, and further better testing the wind resistance stability of the scaffold, improving the testing effect of the testing machine. A plurality of rolling grooves 15 are formed at the positions of both sides of the sliding frame 16 located in the chute 13. A ball 14 is rotatably connected in each of the plurality of rolling grooves 15, and the ball 14 contacts the fixed rod 10. During the reciprocating movement up and down of the sliding frame 16, the ball 14 will roll, so that the friction force during the up and down movement of the sliding frame 16 can be reduced. A guide rod 11 is fixed in the chute 13 by bolts, and the guide rod 11 passes through the spring 12 and the sliding frame 16.

[0026] Working principle: when it is needed, the scaffold is placed on the placement plate 9, and then two of the screw rods 20 can be rotated, and the two screw rods 20 will move downward through the threaded engagement with the threaded holes and drive the ball 19 to move downward. At this time, the screw rod 20 will no longer be in a vertical state with the conical groove 18, so that the placement plate 9 will be slightly tilted to simulate an uneven ground, and then the electric fan 17 is started to blow air toward the scaffold, and at the same time, the motor drives the gear 3 to rotate, the gear 3 drives the gear ring 6 to rotate, and the gear ring 6 drives the fixed rod 10 to rotate. The fixed rod 10 will drive the slide 16 to rotate, and the slide 16 will drive the electric fan 17 to rotate, so that the electric fan 17 will blow air around the scaffolding, perform a wind resistance test on the scaffolding, and prevent the scaffolding from tipping over during use, thereby realizing the detection of the wind resistance stability of the scaffolding. During the rotation of the slide 16, the slide 16 will rotate along the track of the guide rail 7, so that the slide 16 will move back and forth up and down in the slide groove 13, expanding the blowing range of the electric fan 17, and then better test the wind resistance stability of the scaffolding, thereby improving the test effect of the testing machine.

[0027] In addition, the terms "installation", "setting", "connection" and "socketing" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

Claims

1. A scaffolding stability testing machine, comprising a bottom plate (1), characterized in that, The upper surface of the bottom plate (1) is fixedly connected with an annular frame (4). The upper surface of the bottom plate (1) at a position inside the annular frame (4) is fixedly connected with a frame body (8). A placement plate (9) for placing a scaffold is arranged inside the frame body (8). The placement plate (9) is connected with the frame body (8) through an adjusting assembly, so that the levelness of the placement plate (9) is changed. The upper surface of the annular frame (4) is rotatably connected with a toothed ring (6). The upper surface of the toothed ring (6) is fixedly connected with a fixed rod (10). A chute (13) is formed on one side of the fixed rod (10). A sliding frame (16) is slidably connected inside the chute (13). An electric fan (17) is fixedly connected to one side of the sliding frame (16). A spring (12) is fixedly connected to the top of the sliding frame (16), and the spring (12) is fixed to the fixed rod (10). A power assembly for driving the electric fan (17) to rotate is arranged on the top of the annular frame (4). A guiding assembly for changing the rotation track of the electric fan (17) is arranged on the upper surface of the annular frame (4).

2. The scaffolding stability testing machine according to claim 1, characterized in that, The adjusting assembly includes a plurality of screw rods (20). A plurality of threaded holes are formed on the upper surface of the frame body (8). The plurality of screw rods (20) are respectively threadedly connected in the plurality of threaded holes. A plurality of conical grooves (18) are formed on the upper surface of the placement plate (9). The plurality of screw rods (20) respectively pass through the plurality of conical grooves (18). The bottom ends of the plurality of screw rods (20) are all fixedly connected with balls (19) for supporting the placement plate (9), and the diameter of the balls (19) is larger than the diameter of the conical grooves (18).

3. The scaffolding stability testing machine according to claim 1, characterized in that, The power assembly includes a fixed frame (2). The fixed frame (2) is fixedly connected to the top of the annular frame (4). A motor is fixedly connected inside the fixed frame (2). One end of the output shaft of the motor passes through the annular frame (4) and is key-connected with a gear (3), and the gear (3) is meshed with the toothed ring (6).

4. A scaffolding stability testing machine according to claim 1, wherein, The guiding assembly includes a plurality of support rods (5). The plurality of support rods (5) are all fixedly connected to the upper surface of the annular frame (4). A guide rail (7) is fixedly connected between the plurality of support rods (5), and the sliding frame (16) is slidably connected with the guide rail (7), so that the sliding frame (16) rotates along the track of the guide rail (7).

5. A scaffolding stability testing machine according to claim 4, characterized in that, The plurality of support rods (5) are annularly distributed, and the guide rail (7) is annularly corrugated.

6. The scaffolding stability testing machine according to claim 1, characterized in that, A plurality of rolling grooves (15) are formed at positions of both sides of the sliding frame (16) inside the chute (13). A plurality of balls (14) are rotatably connected inside the plurality of rolling grooves (15).

7. A scaffolding stability testing machine according to claim 1, characterized in that, A guide rod (11) is fixedly connected inside the chute (13), and the guide rod (11) passes through the spring (12) and the sliding frame (16).

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