Modular expansion joint device for heavy duty flooring

Abstract

The utility model provides a kind of modular expansion joint device for heavy terrace belongs to expansion joint technical field, including support plate, the top of the support plate is symmetrically equipped with two groups of flat steel, and the flat steel between opposite is connected each other by plastic bolt, the side wall of mutually far apart between the flat steel is fixedly installed with anchor rod, the force transmission plate of sliding connection with it is installed in the support plate and is penetrated, the side wall of the support plate is fixedly installed with the plug-in sleeve of the force transmission plate outside, further include: pedestal, it is set in one side of the support plate. First support frame and second support frame can form a triangular support structure with pedestal in the utility model, support plate is stably supported, when needing to remove, just pull out limit pin and then unscrew self-tapping screw on pedestal, installation and disassembly are more convenient and fast, can make construction operation more convenient, improve overall construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, and more specifically, to a modular expansion joint device for heavy-duty flooring. Background Technology

[0002] Heavy-duty flooring, also known as heavy-duty hardened wear-resistant flooring, is a concrete floor treatment system designed specifically for high-load scenarios. It is widely used in warehouses, docks, factories, parking lots, and other places that need to withstand heavy loads and impacts. To address the floor cracking problem that may be caused by climate change, expansion joints are reasonably installed in the corresponding locations.

[0003] A search revealed a Chinese patent application with patent number 202121993201.8, which discloses an integrated armored expansion joint structure for flooring, relating to the technical field of flooring expansion joint structures. This patent improves the problem of expansion joint edge chipping. It includes a support plate, flat steel bars set on both sides of the upper end of the support plate, a connector between the two flat steel bars, and anchor rods set on the side walls of the flat steel bars that are far apart from each other. Force transmission plates are set at intervals along the length of the support plate, and the force transmission plates pass through the support plate. A plug-in sleeve fitted onto the force transmission plate is provided on one side of the support plate. While the aforementioned patent can effectively reduce the occurrence of expansion joint edge breakage, it still has the following shortcomings in use: during installation, it relies on multiple steel bar supports welded on-site to support and fix the support plate, and after the pouring construction on one side is completed, the welded steel bar supports must be cut off before the pouring construction on the other side can be carried out, which makes the construction operation more complicated and affects the overall construction efficiency.

[0004] Therefore, there is an urgent need for a modular expansion joint device for heavy-duty flooring to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a modular expansion joint device for heavy-duty flooring to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: A modular expansion joint device for heavy-duty flooring includes a support plate. Two sets of flat steel are symmetrically mounted on the top of the support plate, and the opposing flat steels are connected to each other by plastic bolts. Anchor rods are fixedly installed on the sidewalls of the flat steels that are far apart from each other. A force transmission plate is slidably connected to the support plate. A plug-in sleeve fitted onto the outside of the force transmission plate is fixedly installed on the sidewall of the support plate. The device also includes: A base is disposed on one side of the support plate, and multiple self-tapping screws are installed through the base; The first support frame is fixedly connected to the side wall of the base, and the side wall of the support plate is fixedly connected to two symmetrically arranged first connecting seats; The second support frame is fixedly connected to the top of the base, and the side wall of the support plate is fixedly located above the first connecting seat. The second connecting seat is located at the center of the two first connecting seats. Both the first connecting seat and the second connecting seat are equipped with limiting pins that are movably connected to them, and the ends of the first support frame and the second support frame away from the base are provided with pin holes that cooperate with the limiting pins. An adjustment component, located in the middle section of the second support frame, is used to push the support plate to rotate about the connection point between the first support frame and the first connecting seat.

[0007] As a preferred technical solution of this application, the first support frame includes an H-shaped first support arm fixedly connected to the side wall of the base, and a C-shaped second support arm fixedly connected to the end of the first support arm away from the base. The second support arm is rotatably connected to the first connecting seat through the limiting pin.

[0008] As a preferred technical solution of this application, the second support frame includes a third support arm and a connecting rod fixedly connected to the top of the base. One end of the connecting rod is rotatably connected to the second connecting seat through a limiting pin, and the other end of the connecting rod is fixedly connected to the third connecting seat.

[0009] As a preferred technical solution of this application, the adjustment component includes a connecting block disposed inside the third connecting seat, a crossbar being installed through the connecting block, a through hole being provided on the third connecting seat to cooperate with the crossbar, and a first adjusting screw threadedly connected to the third support arm being installed through the third support arm, one end of the first adjusting screw being rotatably connected to the outer wall of the connecting block.

[0010] As a preferred technical solution of this application, the base is provided with a plurality of stepped holes that cooperate with the self-tapping screws.

[0011] As a preferred technical solution of this application, each of the four corners of the base is provided with a second adjusting screw threadedly connected thereto, and a pad is fixedly installed at the bottom end of the second adjusting screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: 1. By setting up a base, a first support frame, and a second support frame, the first and second support frames can work together with the base to form a triangular support structure to stably support the support plate. When it needs to be dismantled, simply pull out the limit pin and unscrew the self-tapping screws on the base. Installation and dismantling are more convenient and quick, making construction operations more convenient and improving overall construction efficiency. This solves the problem in the existing technology that it is necessary to erect steel reinforcement supports on site to support the support plate, and that the steel reinforcement supports need to be cut off after each pour. 2. By setting a first adjusting screw, a connecting rod, and a third connecting seat, rotating the first adjusting screw during use can push the connecting block to move. The third connecting seat and the connecting rod push the support plate to rotate around the connection point between the first connecting seat and the first support frame as the axis, thereby pushing the support plate to be adjusted to a state perpendicular to the foundation, so that the top of the flat steel is flush with the top of the ground, avoiding the problem of poor expansion and contraction due to installation tilt. 3. By setting a second adjusting screw and pad, it is easy to cooperate with the base to deal with local unevenness of the foundation, ensuring that the base is always in a horizontal state. In turn, the first support frame and the second support frame ensure the installation level of the support plate and flat steel connected to it, thereby improving the overall construction quality. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of the modular expansion joint device for heavy-duty flooring provided in this application; Figure 2 A schematic diagram of the overall structure of the modular expansion joint device for heavy-duty flooring provided in this application; Figure 3 Modular expansion joint device for heavy-duty flooring provided in this application Figure 1 Enlarged view of the A-structure; Figure 4 A partial structural schematic diagram of the modular expansion joint device for heavy-duty flooring provided in this application; Figure 5 A partial structural schematic diagram of the modular expansion joint device for heavy-duty flooring provided in this application; Figure 6 This is a partial structural schematic diagram of the modular expansion joint device for heavy-duty flooring provided in this application.

[0014] The image shows: 1. Support plate; 2. Flat steel; 3. Plastic bolt; 4. Anchor bolt; 5. Force transmission plate; 6. Plug-in sleeve; 7. First connecting seat; 8. Second connecting seat; 9. Base; 10. First support frame; 101. First support arm; 102. Second support arm; 11. Second support frame; 111. Third support arm; 112. Connecting rod; 113. Through hole; 114. Third connecting seat; 115. First adjusting screw; 116. Connecting block; 117. Crossbar; 12. Self-tapping screw; 13. Stepped hole; 14. Second adjusting screw; 15. Pad; 16. Pin hole; 17. Limit pin. Detailed Implementation

[0015] 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, not all, of the embodiments of this utility model.

[0016] like Figures 1-6 As shown, this embodiment proposes a modular expansion joint device for heavy-duty flooring, comprising a support plate 1, two sets of flat steel 2 symmetrically mounted on the top of the support plate 1, the opposing flat steel 2 being connected to each other by plastic bolts 3, and anchor rods 4 fixedly mounted on the side walls of the flat steel 2 that are far apart from each other. A force transmission plate 5 is slidably connected to the support plate 1, and a plug-in sleeve 6 fitted on the outside of the force transmission plate 5 is fixedly mounted on the side wall of the support plate 1. It also includes: a base 9, disposed on one side of the support plate 1, with multiple self-tapping screws 12 slidably mounted on the base 9; a first support frame 10, fixedly connected to the side wall of the base 9, with two symmetrically arranged first connecting seats 7 fixedly connected to the side wall of the support plate 1; and a second support frame 11, fixedly connected to the top of the base 9, with a second connecting seat 8 fixedly located above the first connecting seats 7 on the side wall of the support plate 1. At the center of the two first connecting seats 7; wherein, each of the first connecting seats 7 and the second connecting seat 8 is equipped with a limiting pin 17 that is movably connected to it; the ends of the first support frame 10 and the second support frame 11 away from the base 9 are provided with pin holes 16 that cooperate with the limiting pins 17; the adjustment component is set in the middle section of the second support frame 11, which is used to push the support plate 1 to rotate around the connection point of the first support frame 10 and the first connecting seat 7 as the axis. By setting the base 9, the first support frame 10 and the second support frame 11, the first support frame 10 and the second support frame 11 can cooperate with the base 9 to form a triangular support structure to stably support the support plate 1. When it is necessary to disassemble, simply pull out the limiting pin 17 and unscrew the self-tapping screws 12 on the base 9. The installation and disassembly are more convenient and quick, which can make the construction operation more convenient and improve the overall construction efficiency.

[0017] like Figure 1 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the first support frame 10 further includes an H-shaped first support arm 101 fixedly connected to the side wall of the base 9. A C-shaped second support arm 102 is fixedly connected to the end of the first support arm 101 away from the base 9. The second support arm 102 is rotatably connected to the first connecting seat 7 via a limiting pin 17. It should be noted that the first support arm 101 facilitates the connection between the second support arm 102 and the base 9, and the C-shaped second support arm 102 facilitates its engagement with the limiting pin 17 and the two first connecting seats 7.

[0018] like Figure 1 , Figure 3 and Figure 6 As shown, in a preferred embodiment, based on the above method, the second support frame 11 further includes a third support arm 111 fixedly connected to the top of the base 9 and a connecting rod 112. One end of the connecting rod 112 is rotatably connected to the second connecting seat 8 via a limiting pin 17, and the other end of the connecting rod 112 is fixedly connected to the third connecting seat 114. It should be noted that during use, the connecting rod 112 can be rotatably connected to the second connecting seat 8 through the pin hole 16 at one end and the limiting pin 17. The third connecting seat 114 facilitates the installation of the connecting block 116.

[0019] like Figure 1 , Figure 3 and Figure 6 As shown, in a preferred embodiment, based on the above method, the adjusting assembly further includes a connecting block 116 disposed inside the third connecting seat 114, a crossbar 117 being installed through the connecting block 116, a through hole 113 being provided on the third connecting seat 114 to cooperate with the crossbar 117, and a first adjusting screw 115 being threadedly installed through the third support arm 111, one end of the first adjusting screw 115 being rotatably connected to the outer wall of the connecting block 116. It should be noted that the crossbar 117 and the through hole 113 facilitate the rotatable connection between the connecting block 116 and the third connecting seat 114. In use, rotating the first adjusting screw 115 can push the connecting block 116 to move, and the third connecting seat 114 and the connecting rod 112 push the support plate 1 to rotate around the connection point of the first connecting seat 7 and the first support frame 10, thereby pushing the support plate 1 to a state perpendicular to the foundation, so that the top of the flat steel 2 is flush with the top of the ground, avoiding the problem of poor expansion and contraction due to installation tilt.

[0020] like Figure 1 and Figure 3As shown, in a preferred embodiment, based on the above method, the base 9 is further provided with a plurality of stepped holes 13 that cooperate with the self-tapping screws 12. It should be noted that the stepped holes 13 facilitate the installation of the self-tapping screws 12 on the base 9.

[0021] like Figure 1 and Figure 3 As shown, in a preferred embodiment, based on the above method, a second adjusting screw 14 threadedly connected to each of the four corners of the base 9 is further installed, and a pad 15 is fixedly installed at the bottom end of the second adjusting screw 14. It should be noted that by setting the second adjusting screw 14 and the pad 15, the base 9 can easily cope with local unevenness in the foundation, ensuring that the base 9 is always in a level state. This, in turn, ensures the installation level of the support plate 1 and flat steel 2 connected to them through the first support frame 10 and the second support frame 11, improving the overall construction quality.

[0022] Specifically, the modular expansion joint device for heavy-duty flooring is used as follows: The base 9 is leveled using the second adjusting screws 14 at its four corners. Then, self-tapping screws 12 are screwed into the foundation through the stepped holes 13 to fix the base 9. Next, both ends of the second support arm 102 are inserted into the two first connecting seats 7. The limiting pin 17 is passed through the pin hole 16 on the second support arm 102 to connect the first connecting seat 7 and the second support arm 102, thus completing the connection between the first support frame 10 and the support plate 1. Then, the end of the second support arm 102 with the pin hole 16 is inserted into the inside of the second connecting seat 8. The limiting pin 17 passes through the second connecting seat 8 and the second support arm 102 to complete the connection between the second support frame 11 and the support plate 1, allowing the first support frame 10 and the second support frame 11 to cooperate with the base 9 to form a [missing information - likely a specific structure or feature]. A triangular support structure provides stable support for the support plate 1. Then, rotating the first adjusting screw 115 pushes the connecting block 116 to move. Through the third connecting seat 114 and the connecting rod 112, the support plate 1 is pushed to rotate around the connection point of the first connecting seat 7 and the first support frame 10, thereby pushing the support plate 1 to a state perpendicular to the foundation, so that the top of the flat steel 2 is flush with the top of the ground. At this time, the ground can be poured on the side of the support plate 1 away from the base 9. After the pouring of one side is completed, pull out the limiting pin 17 and unscrew the self-tapping screw 12 on the base 9 to dismantle the base 9, the first support frame 10 and the second support frame 11. After dismantling, the pouring of the other side can be carried out. When the ground on both sides of the support plate 1 shrinks, the anchor rod 4 will pull the two opposite flat steels 2. At this time, the plastic bolt 3 between the two flat steels 2 will break, allowing the ground on both sides to shrink freely.

Claims

1. A modular expansion joint device for heavy-duty flooring, comprising a support plate (1), wherein two sets of flat steel (2) are symmetrically installed on the top of the support plate (1), the opposing flat steel (2) are connected to each other by plastic bolts (3), and anchor rods (4) are fixedly installed on the side walls of the flat steel (2) that are far apart from each other. A force transmission plate (5) is slidably connected to the support plate (1), and a plug sleeve (6) sleeved on the outside of the force transmission plate (5) is fixedly installed on the side wall of the support plate (1). The device is characterized in that... Also includes: A base (9) is provided on one side of the support plate (1), and a plurality of self-tapping screws (12) are installed through the base (9). The first support frame (10) is fixedly connected to the side wall of the base (9), and the side wall of the support plate (1) is fixedly connected to two symmetrically arranged first connecting seats (7). The second support frame (11) is fixedly connected to the top of the base (9), and the side wall of the support plate (1) is fixedly located above the first connecting seat (7) at the second connecting seat (8). The second connecting seat (8) is located at the center of the two first connecting seats (7). Among them, the first connecting seat (7) and the second connecting seat (8) are both equipped with limiting pins (17) that are movably connected to them, and the first support frame (10) and the second support frame (11) are both provided with pin holes (16) that cooperate with the limiting pins (17) at the ends away from the base (9). An adjustment component is located in the middle section of the second support frame (11) and is used to push the support plate (1) to rotate around the connection point of the first support frame (10) and the first connecting seat (7).

2. A modular expansion joint device for heavy-duty flooring according to claim 1, characterized in that, The first support frame (10) includes an H-shaped first support arm (101) fixedly connected to the side wall of the base (9). A C-shaped second support arm (102) is fixedly connected to one end of the first support arm (101) away from the base (9). The second support arm (102) is rotatably connected to the first connecting seat (7) through the limiting pin (17).

3. A modular expansion joint device for heavy-duty flooring according to claim 1, characterized in that, The second support frame (11) includes a third support arm (111) and a connecting rod (112) fixedly connected to the top of the base (9). One end of the connecting rod (112) is rotatably connected to the second connecting seat (8) through a limiting pin (17), and the other end of the connecting rod (112) is fixedly connected to the third connecting seat (114).

4. A modular expansion joint device for heavy-duty flooring according to claim 3, characterized in that, The adjustment assembly includes a connecting block (116) disposed inside the third connecting seat (114), a crossbar (117) is installed through the connecting block (116), a through hole (113) is provided on the third connecting seat (114) to cooperate with the crossbar (117), a first adjusting screw (115) is installed through the third support arm (111) and threadedly connected thereto, and one end of the first adjusting screw (115) is rotatably connected to the outer wall of the connecting block (116).

5. A modular expansion joint device for heavy-duty flooring according to claim 1, characterized in that, The base (9) has multiple stepped holes (13) that cooperate with the self-tapping screws (12).

6. A modular expansion joint device for heavy-duty flooring according to claim 1, characterized in that, The base (9) has a second adjusting screw (14) threadedly connected to each of its four corners, and a pad (15) is fixedly installed at the bottom of the second adjusting screw (14).

Images