Portable ring lock scaffold node rigidity detection equipment

Abstract

The utility model belongs to the technical field of scaffold detection, and particularly relates to portable ring lock scaffold node rigidity detection equipment which comprises a first support and a second support which are arranged in a crossed mode on the vertical plane and hinged to each other, and the first support and the second support are symmetrically arranged about the vertical axis of the hinged position. The surface of the first support and the surface of the second support are rotationally connected with rollers abutting against the surfaces of the adjacent transverse rods, the rollers are horizontally arranged, two vertical hydraulic telescopic cylinders are jointly connected between the first support and the second support, and the two hydraulic telescopic cylinders are symmetrically arranged about the vertical axis of the hinged position of the first support and the second support. The two ends of each hydraulic telescopic cylinder are fixedly connected with the adjacent first support and second support respectively, and by means of the technical scheme, the problems that an existing detection device is inconvenient to carry, and the stress condition of a detection result is different from that of an actual scaffold after the scaffold is built can be effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of scaffolding inspection technology, specifically relating to a portable device for testing the stiffness of nodes in disc-lock scaffolding. Background Technology

[0002] Disc-lock scaffolding (also known as socket-type disc-lock scaffolding) is a modern scaffolding system with a modular design. Due to its efficiency, safety, and standardization, it is widely used in construction, bridge building, stage construction, and other fields. To ensure the smooth erection of the construction platform and the safety of subsequent construction workers, it is necessary to test the mechanical properties of the scaffolding to ensure safety during construction and prevent scaffolding collapse and related accidents. For example, a Chinese patent discloses a device for testing the torsional stiffness of scaffolding (patent publication number: CN209131958U). This device involves inserting vertical members of the same diameter into positioning holes and through holes, then placing horizontal members on a suspension chain and securing the vertical and horizontal members together with fasteners. A universal testing machine is used to lift one end of the horizontal member, causing it to deform relative to the vertical member. A dial gauge positioned 1 meter from the center of the vertical member detects this deformation, allowing for the calculation of the torsional stiffness test results.

[0003] Although the above technical solution provides a scaffolding stiffness testing device, the testing process only involves fixing two vertical members with fasteners and then testing the stiffness with a universal testing machine. This not only limits the testing site but also fails to realistically simulate the scene after the scaffolding is erected, resulting in discrepancies between the test results and the actual stress conditions after erection. Furthermore, the entire testing equipment is bulky and inconvenient to move. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a portable device for testing the stiffness of nodes in disc-lock scaffolding, so as to solve the problems that the current testing devices are inconvenient to carry and that the test results differ from the actual stress conditions after the scaffolding is erected.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A portable device for testing the stiffness of nodes in a disc-lock scaffold is fixedly installed in a vertical plane between two adjacent horizontal bars of the scaffold. It includes two supports, a first support and a second support, which are intersected and hinged together in the vertical plane. The first and second supports are symmetrically arranged about the vertical axis of the hinge. Each of the first and second supports has a roller rotatably connected to its surface, which abuts against the surface of the adjacent horizontal bar. The rollers are horizontally positioned. Two vertically positioned hydraulic telescopic cylinders are connected between the first and second supports, and these cylinders are symmetrically arranged about the vertical axis of the hinge. Both ends of each hydraulic telescopic cylinder are fixedly connected to the adjacent first and second supports. When the working end of each hydraulic telescopic cylinder extends synchronously and drives the first and second supports to rotate relative to each other, each roller abuts against the corresponding horizontal bar surface and applies vertical pressure.

[0007] Furthermore, both the first and second supports consist of two parallel and spaced-apart first and second support blocks on a horizontal plane, and a plurality of fixed columns fixed between them. Each fixed column is evenly spaced along the length of the first support block. Both ends of each first and second support block are provided with a plurality of through holes evenly spaced along its length. Each roller is detachably connected to the corresponding through hole by bolts and nuts.

[0008] Furthermore, each of the rollers has an annular groove on its peripheral surface that matches the outer surface of the crossbar.

[0009] Furthermore, each of the hydraulic telescopic cylinders has a fixed sleeve that is detachably connected to the outer surface of the fixed column at its working end, and a base is fixed at the other end of each hydraulic telescopic cylinder. A telescopic rod is fixedly connected to the side surface of the base away from the working end, and the fixed sleeve is fixedly connected to the free end of each telescopic rod.

[0010] Furthermore, the horizontal distance between each of the first and second supports is greater than the diameter of the scaffold upright.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses a first and second bracket, which are hinged to each other, placed between two adjacent horizontal bars of the scaffold. A hydraulic telescopic cylinder installed vertically between the first and second brackets provides vertical pressure, which is indirectly applied to the horizontal bars through the rollers. This allows for the detection of the rigidity at the connection between the horizontal bar and the column. The operation is simple and convenient. Furthermore, the first and second brackets can rotate to accommodate horizontal bars with different vertical spacing within a certain range, effectively expanding the applicability of this equipment.

[0013] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0015] Figure 1 This is a schematic diagram of the connection structure between the scaffolding and the node stiffness testing equipment of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 Side view of the scaffolding and joint stiffness testing equipment of this utility model Figure 1 ;

[0018] Figure 4 This is a schematic diagram of the first and second supports of this utility model;

[0019] Figure 5 This is a schematic diagram of the hydraulic telescopic cylinder and fixed sleeve structure of this utility model;

[0020] Figure 6 Side view of the scaffolding and joint stiffness testing equipment of this utility model Figure 2 .

[0021] The following labels are shown in the attached diagram:

[0022] 1. Horizontal bar, 2. Vertical bar, 3. First bracket, 301. First support block, 302. Second support block, 303. Fixed column, 4. Second bracket, 5. Roller, 6. Hydraulic telescopic cylinder, 7. Fixed sleeve, 8. Telescopic rod. Detailed Implementation

[0023] like Figures 1-6 As shown,

[0024] A portable device for testing the stiffness of nodes in a disc-lock scaffold is fixedly installed in a vertical plane between two adjacent horizontal bars 1 of the scaffold. It includes two first supports 3 and second supports 4 that are intersected and hinged to each other in the vertical plane. The first supports 3 and second supports 4 are symmetrically arranged about the vertical axis of the hinge point. The first supports 3 and second supports 4 are in an "X" shape in the vertical plane. The surfaces of the first supports 3 and second supports 4 are rotatably connected to rollers 5 that abut against the surfaces of the adjacent horizontal bars 1. The rollers 5 are horizontally arranged. The first supports 3 and second supports 4 are connected together by two vertically placed hydraulic telescopic cylinders 6. The two hydraulic telescopic cylinders 6 are symmetrically arranged about the vertical axis of the hinge point of the first supports 3 and second supports 4. The two ends of each hydraulic telescopic cylinder 6 are fixedly connected to the adjacent first supports 3 and second supports 4. When the working end of each hydraulic telescopic cylinder 6 extends synchronously and drives the first supports 3 and second supports 4 to rotate relative to each other, each roller 5 abuts against the surface of the corresponding horizontal bar 1 and applies vertical pressure.

[0025] The scaffolding consists of multiple vertical uprights 2 and multiple horizontal bars 1 circumferentially fixed around each upright 2 (the specific installation principle of the disc-lock scaffolding and other related components are the same as existing technology, so they will not be elaborated on here).

[0026] As shown in the diagram, after a portion of the disc-lock scaffolding is erected, the first support 3 and the second support 4 are placed between the two adjacent horizontal bars 1 to be tested, ensuring that the surface of each roller 5 abuts against the surface of the adjacent horizontal bar 1, and that each hydraulic telescopic cylinder 6 is vertically positioned. Then, each hydraulic telescopic cylinder 6 is activated, causing its working end to extend vertically and drive the first support 3 and the second support 4 to rotate towards each other. At this time, the working end of each hydraulic telescopic cylinder 6 indirectly applies vertical pressure to the two adjacent horizontal bars 1 through the first support 3, the second support 4, and the roller 5, thereby testing the stiffness of the connection between the horizontal bar 1 and the upright 2. Of course, those skilled in the art can further refine the test by adjusting the roller 5. A pressure sensor is added between cylinder 5 and horizontal bar 1 to more intuitively understand the pressure at each contact point. Similarly, the deformation of the upper and lower horizontal bars 1 can be directly observed, or the connection between horizontal bar 1 and vertical bar 2 can be checked for damage during the inspection process to determine the inspection status. The operation is simple and convenient, and the inspection can be carried out during the construction of the disc-lock scaffolding, which effectively improves the inspection range and the data obtained is more in line with reality. For example, after the disc-lock scaffolding is completed, the stiffness can be tested between the two horizontal bars 1 at the bottom. After the inspection is completed, the working end of each hydraulic telescopic cylinder 6 is reset, and the first support 3 and the second support 4 can be quickly removed for easy installation and carrying.

[0027] In this embodiment, the first support 3 and the second support 4 are each composed of two parallel and spaced-apart first support blocks 301 and second support blocks 302 on a horizontal plane, and a plurality of fixing posts 303 fixed between them. The first support blocks 301 and second support blocks 302 are both elongated. Both ends of the fixing posts 303 are welded and fixed to the first support blocks 301 and second support blocks 302. Each fixing post 303 is evenly spaced along the length direction of the first support block 301. Both ends of each first support block 301 and second support block 302 are provided with a plurality of through holes evenly spaced along their length direction. Each roller 5 is detachably connected to the corresponding through hole by bolts and nuts.

[0028] Combination Figure 2 As shown, the first support block 301 and the second support block 302 are integrated into a whole structure through multiple fixed columns 303, which reduces weight while ensuring overall rigidity. Furthermore, multiple through holes are provided at both ends of the first support block 301 and the second support block 302 in the length direction, which can adjust the position of the roller 5 according to the distance between two adjacent horizontal bars 1. Of course, the first bracket 3 and the second bracket 4 can also be rotated to accommodate horizontal bars 1 with different vertical distances, effectively expanding the scope of application of this utility model.

[0029] In this embodiment, each roller 5 has an annular groove on its circumferential surface that matches the outer surface of the crossbar 1, which increases the contact area between the roller 5 and the crossbar 1, making the force more uniform and effectively improving the stability during the detection process.

[0030] In this embodiment, the working end of each hydraulic telescopic cylinder 6 is fixedly connected to a fixed sleeve 7 that is detachably connected to the outer surface of the fixed column 303. The fixed sleeve 7 is formed by two symmetrically distributed semi-circular sleeves fixed by bolts. The working end of the hydraulic telescopic cylinder 6 is fixed to one of the semi-circular sleeves. The other end of the hydraulic telescopic cylinder 6 is fixed to a base by bolts, and a telescopic rod 8 is fixedly connected to the side surface of the base away from the working end. The free end of each telescopic rod 8 is fixedly connected to the fixed sleeve 7.

[0031] As shown in the figure, the telescopic rod 8 can be made using existing related equipment that adjusts the extension length via a thread (the prior art will not be described in detail). By adjusting the length of the telescopic rod 8, it can be used for horizontal bars 1 with different vertical spacing, effectively expanding the applicability of this equipment.

[0032] In this embodiment, the horizontal distance between each of the first support 3 and the second support 4 is greater than the diameter of the scaffold upright 2.

[0033] Combination Figure 6As shown, the upright 2 can be placed at the hinge of the first bracket 3 and the second bracket 4, so that the first bracket 3 and the second bracket 4 can drive the corresponding roller 5 to apply vertical pressure to the horizontal bars 1 on both sides of the upright. This can further expand the detection range of this device (a portable disc-lock scaffold node stiffness testing device, for the same context) and improve the flexibility of the device. Of course, during installation, the horizontal bars 1 on both sides of the upright 2 need to be removed before the first bracket 3 and the second bracket 4 can be placed on the outside of the upright 2. The specific operation steps are common knowledge to those skilled in the art and will not be elaborated here.

[0034] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A portable device for testing the stiffness of nodes in a disc-lock scaffold, fixedly installed in the vertical plane between two adjacent horizontal bars (1) of the scaffold, characterized in that: The system includes two supports, a first support (3) and a second support (4), which are intersected and hinged together in a vertical plane. The first support (3) and the second support (4) are symmetrical about the vertical axis of the hinge. The surfaces of the first support (3) and the second support (4) are rotatably connected to rollers (5) that abut against the surfaces of adjacent crossbars (1). The rollers (5) are horizontally arranged. The first support (3) and the second support (4) are connected together by two vertically placed hydraulic telescopic cylinders (6). The two hydraulic telescopic cylinders (6) are symmetrical about the vertical axis of the hinge of the first support (3) and the second support (4). The two ends of each hydraulic telescopic cylinder (6) are fixedly connected to the adjacent first support (3) and the second support (4). When the working end of each hydraulic telescopic cylinder (6) extends synchronously and drives the first support (3) and the second support (4) to rotate relative to each other, each roller (5) abuts against the surface of the corresponding crossbar (1) and applies vertical pressure.

2. The portable disc-lock scaffold joint stiffness testing device according to claim 1, characterized in that: The first bracket (3) and the second bracket (4) are each composed of two parallel and spaced first support blocks (301) and second support blocks (302) on a horizontal plane, and a plurality of fixed columns (303) fixed between them. Each fixed column (303) is evenly spaced along the length direction of the first support block (301). Each first support block (301) and second support block (302) has a plurality of through holes evenly spaced along its length at both ends. Each roller (5) is detachably connected to the corresponding through hole by bolts and nuts.

3. The portable disc-lock scaffold joint stiffness testing device according to claim 2, characterized in that: Each of the rollers (5) has an annular groove on its circumferential surface that matches the outer surface of the crossbar (1).

4. The portable disc-lock scaffold joint stiffness testing device according to claim 3, characterized in that: Each of the hydraulic telescopic cylinders (6) has a fixed sleeve (7) that is detachably connected to the outer surface of the fixed column (303) at its working end. The other end of each hydraulic telescopic cylinder (6) has a fixed base, and a telescopic rod (8) is fixedly connected to the side surface of the base away from the working end. The fixed sleeve (7) is fixedly connected to the free end of each telescopic rod (8).

5. The portable disc-lock scaffold joint stiffness testing device according to claim 4, characterized in that: The horizontal distance between each of the first support (3) and the second support (4) is greater than the diameter of the scaffold upright (2).

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