Roofing crossing deformation joint access walkway

Abstract

The utility model provides a kind of roof across deformation joint passage pedal belongs to deformation joint technical field, including steel frame assembly and clamping assembly, steel frame assembly includes main steel frame, the top of main steel frame is provided with additional steel frame, the bottom length direction of main steel frame is provided with two installation parts along center symmetry, clamping assembly is provided on installation part, clamping assembly includes the fixed frame being arranged in installation part bottom, the bottom of fixed frame is provided with a pair of clamping arm, the bottom of clamping arm is provided with clamping plate in opposite direction, transmission connecting rod is provided on fixed frame and controls the activity of clamping arm, the bottom four corners of main steel frame are provided with pad, solve the problem that the stability of temporary protective measure of existing deformation joint is poor in construction stage, is easily displaced.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, and more specifically, to a roof crossing expansion joint access tread. Background Technology

[0002] In building structural design, expansion joints are crucial structures for addressing building deformation caused by factors such as temperature and humidity changes and foundation settlement. By reserving expansion space, they effectively prevent structural cracking. However, the management of expansion joint areas presents significant challenges during construction and subsequent maintenance: Firstly, workers must cross expansion joints when working on the roof, and frequent stepping can damage the right-angle edges of the joints, leading to decreased sealing performance when subsequent waterproof cover overlaps and increasing the risk of leakage. Secondly, directly crossing expansion joints poses a risk of falling, especially in slippery or high-altitude environments. The need for temporary passage during construction has not been adequately addressed, and traditional temporary protective measures (such as overlapping wooden planks) suffer from poor stability, are prone to displacement, and are incompatible with the expansion joint structure. Utility Model Content

[0003] To overcome the above deficiencies, this utility model provides a roof crossing expansion joint access tread to solve the aforementioned problems.

[0004] This utility model is implemented as follows: A roof access tread across an expansion joint includes a steel frame assembly and a clamping assembly. The steel frame assembly includes a main steel frame, with a secondary steel frame at the top. Two mounting portions are symmetrically arranged along the center of the bottom length of the main steel frame. The clamping assembly is mounted on each mounting portion. The clamping assembly includes a fixing frame at the bottom of the mounting portion. A pair of clamping arms are mounted at the bottom of the fixing frame. Clamping plates are mounted on the bottom of the clamping arms in opposite directions. A transmission link for controlling the movement of the clamping arms is mounted on the fixing frame. Foot pads are mounted at the four corners of the bottom of the main steel frame.

[0005] In an embodiment of this utility model, an extension frame is provided in the width direction of the main steel frame.

[0006] In the embodiments of this utility model, the main steel frame, the auxiliary steel frame and the extension frame are all welded from channel steel of the same size, and round steel is arranged on the top of the three in an array.

[0007] In an embodiment of this utility model, the angle between the extension frame and the main steel frame on the horizontal plane is 30 degrees.

[0008] In an embodiment of this utility model, the pad includes a square tube fixedly disposed at the bottom of the main steel frame, and a base plate is provided at the bottom of the square tube. The bottom of the base plate is at the same horizontal height as the bottom of the extension frame.

[0009] In an embodiment of this utility model, the pad foot includes a square tube fixedly disposed at the bottom of the main steel frame, an inner rod slidably disposed at the bottom of the square tube, pin holes being opened on the outside of both, and the length of both being adjusted by a pin.

[0010] In an embodiment of this utility model, the mounting part includes a mounting plate welded to the main steel frame.

[0011] In an embodiment of this utility model, the fixing frame includes two parallel connecting plates, with fixing plates at both ends of the top of the two connecting plates. The two fixing plates are fixed to the mounting plate by bolts. The tops of the two clamping arms are hinged to the connecting plates, and their two hinge points are symmetrical about the center of the connecting plates. A mounting seat is provided at the top center of the fixing frame, and a threaded hole is provided at the top center of the mounting seat.

[0012] In an embodiment of this utility model, the transmission linkage includes a threaded rod, a rotating handle is provided at the top end of the threaded rod, a universal head is movably provided at the bottom end of the threaded rod, two transmission arms are hinged to the bottom of the universal head, the other end of the transmission arm is hinged to the adjacent clamping arm, and the hinge point is located in the middle of the clamping arm. The threaded rod is threaded in the threaded hole, and its top passes through the mounting plate and the main steel frame to its top.

[0013] In an embodiment of this utility model, a rubber layer is provided on the outer side of the clamp.

[0014] The beneficial effects of this utility model are as follows: During use, the steel frame assembly is placed across the expansion joint, allowing the clamping assembly to fall vertically into the joint. Rotating the handle drives the threaded rod to rotate, causing the universal head to move downwards. The transmission arm then pushes the clamping arms on both sides outwards, creating an elastic clamp between the rubber layer on the outer side of the clamping plate and the inner wall of the expansion joint. At this point, the steel frame assembly is stably fixed to both sides of the expansion joint by the clamping force. Simultaneously, the bottom pads raise the main steel frame to a position off the ground, avoiding direct contact with the right-angled edge of the joint. The extension frame connects the main steel frame to the floor at a 30-degree angle, forming a sloping transition and eliminating the height difference for passage. The off-ground support design completely avoids damage to the edges of the expansion joint caused by foot traffic, solving the sealing failure problem caused by traditional temporary measures. The rubber layer of the clamping plate enhances friction while allowing for slight deformation of the joint, extending the device's service life. The steel frame assembly provides a stable passage platform, eliminating the risk of falls. The adjustable pads adapt to uneven floor surfaces during construction, ensuring the stability of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of a roof crossing expansion joint access tread provided for an embodiment of this utility model; Figure 2 A structural schematic diagram of a roof-mounted passageway across an expansion joint, provided as an embodiment of this utility model; Figure 3 A schematic diagram of the clamping assembly provided in this embodiment of the utility model; Figure 4 A partial structural diagram of the clamping assembly provided for an embodiment of this utility model.

[0017] In the diagram: 10. Steel frame assembly; 11. Main steel frame; 12. Auxiliary steel frame; 13. Foot pad; 14. Mounting part; 1401. Mounting plate; 15. Extension frame; 20. Clamping assembly; 21. Fixing frame; 2101. Connecting plate; 2102. Fixing plate; 22. Mounting base; 2201. Threaded hole; 23. Clamping arm; 24. Clamping plate; 25. Transmission connecting rod; 2501. Threaded rod; 2502. Universal head; 2503. Transmission arm; 2504. Rotating handle; 26. Rubber layer. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] like Figure 1-4As shown, this utility model provides a roof crossing expansion joint access step, including a steel frame assembly 10 and a clamping assembly 20. The steel frame assembly 10 includes a main steel frame 11, a secondary steel frame 12 is provided on the top of the main steel frame 11, and two mounting parts 14 are symmetrically arranged along the center along the length direction of the bottom of the main steel frame 11. The clamping assembly 20 is provided on the mounting parts 14. The clamping assembly 20 includes a fixing frame 21 provided at the bottom of the mounting parts 14. A pair of clamping arms 23 are provided at the bottom of the fixing frame 21. A clamping plate 24 is provided in the opposite direction at the bottom of the clamping arms 23. A transmission link 25 for controlling the movement of the clamping arms 23 is provided on the fixing frame 21. Foot pads 13 are provided at the four corners of the bottom of the main steel frame 11.

[0021] In this embodiment, an extension frame 15 is provided in the width direction of the main steel frame 11. The angle between the extension frame 15 and the main steel frame 11 on the horizontal plane is 30 degrees. The extension frame 15 can reduce the height difference between the floor and the (main or auxiliary) steel frame, facilitating passage.

[0022] In this embodiment, the main steel frame 11, the auxiliary steel frame 12, and the extension frame 15 are all welded from channel steel of the same size, and round steel is arranged on the top of the three.

[0023] In one embodiment, the pad 13 includes a square tube fixedly installed at the bottom of the main steel frame 11. The bottom of the square tube is provided with a base plate. The bottom of the base plate is at the same level as the bottom of the extension frame 15. That is, the pad 13 raises the height of the main steel frame 11 from the floor, avoiding contact with one of the right angle surfaces of the expansion joint, which would cause damage to the cement structure.

[0024] In another embodiment, the pad 13 includes a square tube fixedly installed at the bottom of the main steel frame 11. The bottom of the square tube is slidably provided with an inner rod. Both have pin holes on their exteriors and their lengths are adjusted by a pin. Since the flatness of the floor is not yet up to standard during the construction phase, the adjustable pad 13 can be used for adaptive adjustment to ensure the stability of the steel frame assembly 10.

[0025] In this embodiment, the mounting part 14 includes a mounting plate 1401 welded to the main steel frame 11.

[0026] In this embodiment, the fixing frame 21 includes two parallel connecting plates 2101. The top ends of the two connecting plates 2101 have fixing plates 2102. The two fixing plates 2102 are fixed to the mounting plate 1401 by bolts. The tops of the two clamping arms 23 are hinged to the connecting plates 2101, and their two hinge points are symmetrical along the center of the connecting plates 2101. A mounting base 22 is provided at the top center of the fixing frame 21, and a threaded hole 2201 is provided at the top center of the mounting base 22.

[0027] Furthermore, the transmission linkage 25 includes a threaded rod 2501, with a rotating handle 2504 at the top and a universal joint 2502 movably disposed at the bottom. The threaded rod 2501 and the universal joint 2502 are specifically connected by a circular groove at the top of the universal joint 2502 and a spherical connector at the bottom of the threaded rod 2501. The spherical connector is movably connected in the circular groove. Two transmission arms 2503 are hinged to the bottom of the universal joint 2502. The other end of the transmission arm 2503 is hinged to the adjacent clamping arm 23, with the hinge point located in the middle of the clamping arm 23. The threaded rod 2501 is threaded in the threaded hole 2201, and its top passes through the mounting plate 1401 and the main steel frame 11 to its top.

[0028] That is, the height of the universal head 2502 is adjusted by rotating the handle 2504, thereby causing the two clamping plates 24 to move apart or toward each other. As a preferred embodiment, a rubber layer 26 is provided on the outer side of the clamping plate 24. The rubber layer 26 can increase friction and increase the stability of clamping, and also provide a certain amount of deformation to ensure that there is a deformation margin to accommodate slight changes in the expansion joint during the construction stage, thus protecting the device.

[0029] Specifically, the working principle of this roof crossing expansion joint access step is as follows: When in use, the steel frame assembly 10 is placed above the expansion joint, so that the clamping assembly 20 is located in the expansion joint. By rotating the handle 2504, the two clamping plates 24 clamp the inner wall of the expansion joint, thereby fixing the steel frame assembly 10. Furthermore, the pad 13 and the extension frame 15 support the steel frame assembly 10 to a state off the ground. This erection method ensures that the right angle at the top of the expansion joint is not damaged by external forces, thus playing a protective role. At the same time, the clamping assembly 20 also provides stability for the steel frame assembly 10, preventing its displacement.

[0030] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A roof treadmill crossing an expansion joint, characterized in that, The assembly includes a steel frame assembly (10) and a clamping assembly (20). The steel frame assembly (10) includes a main steel frame (11). A secondary steel frame (12) is provided on the top of the main steel frame (11). Two mounting parts (14) are symmetrically arranged along the center along the length direction of the bottom of the main steel frame (11). The clamping assembly (20) is provided on the mounting part (14). The clamping assembly (20) includes a fixing frame (21) provided at the bottom of the mounting part (14). A pair of clamping arms (23) are provided at the bottom of the fixing frame (21). A clamping plate (24) is provided in the opposite direction at the bottom of the clamping arms (23). A transmission link (25) for controlling the movement of the clamping arms (23) is provided on the fixing frame (21). Pads (13) are provided at the four corners of the bottom of the main steel frame (11).

2. A roof treadmill crossing a deformation joint according to claim 1, characterized in that, The main steel frame (11) is provided with an extension frame (15) in the width direction.

3. A roof treadmill crossing a deformation joint according to claim 2, characterized in that, The main steel frame (11), the auxiliary steel frame (12) and the extension frame (15) are all welded from channel steel of the same size, and round steel is arranged on the top of the three.

4. A roof treadmill crossing a deformation joint according to claim 2, characterized in that, The angle between the extension frame (15) and the main steel frame (11) on the horizontal plane is 30 degrees.

5. A roof treadmill crossing a deformation joint according to claim 4, characterized in that, The foot pad (13) includes a square tube fixedly installed at the bottom of the main steel frame (11), and a base plate is provided at the bottom of the square tube. The bottom of the base plate is at the same horizontal height as the bottom of the extension frame (15).

6. A roof treadmill crossing a deformation joint according to claim 4, characterized in that, The foot pad (13) includes a square tube fixedly installed at the bottom of the main steel frame (11). The bottom of the square tube is slidably provided with an inner rod. Both have pin holes on their exteriors and their lengths are adjusted by a pin.

7. A roof treadmill crossing a deformation joint according to claim 1, characterized in that, The mounting part (14) includes a mounting plate (1401) welded to the main steel frame (11).

8. A roof treadmill crossing a deformation joint according to claim 7, characterized in that, The fixing frame (21) includes two parallel connecting plates (2101). The top ends of the two connecting plates (2101) have fixing plates (2102). The two fixing plates (2102) are fixed to the mounting plate (1401) by bolts. The tops of the two clamping arms (23) are hinged to the connecting plates (2101). The two hinge points are symmetrical about the center of the connecting plates (2101). A mounting seat (22) is provided at the top center of the fixing frame (21). A threaded hole (2201) is provided at the top center of the mounting seat (22).

9. A roof treadmill crossing a deformation joint according to claim 8, characterized in that, The transmission link (25) includes a threaded rod (2501), a rotating handle (2504) is provided at the top of the threaded rod (2501), and a universal head (2502) is movably provided at the bottom of the threaded rod (2501). Two transmission arms (2503) are hinged to the bottom of the universal head (2502). The other end of the transmission arm (2503) is hinged to the adjacent clamping arm (23), and the hinge point is located in the middle of the clamping arm (23). The threaded rod (2501) is threaded in the threaded hole (2201), and its top passes through the mounting plate (1401) and the main steel frame (11) to its top.

10. A roof treadmill crossing a deformation joint according to claim 8, characterized in that, A rubber layer (26) is provided on the outer side of the clamp (24).

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