Flexible skeleton movable cover plate assembling device
The cross-laid telescopic slat frame structure solves the problem of uneven cover plates in steel rolling equipment, realizes the flat expansion and contraction of cover plates, enhances structural stability and load-bearing capacity, and avoids safety hazards and deformation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN QIAN YE ENG TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
In existing steel rolling equipment, the multiple layers of movable cover plates cause unevenness, posing safety hazards and aesthetic problems. They are also prone to deformation, affecting normal use.
Design a telescopic frame movable cover assembly device. Through the cross-arranged first and second frame structures, it can be realized that the expansion and contraction are on the same plane. The steel pipe structure is used to enhance the load-bearing capacity and prevent deformation.
The cover plate can be unfolded and retracted smoothly, making it easy to use, enhancing structural stability and load-bearing capacity, and avoiding safety hazards and deformation.
Smart Images

Figure CN224196695U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of steel rolling equipment, and specifically relates to a telescopic slat frame movable cover plate assembly device. Background Technology
[0002] In the field of steel rolling equipment, the main functions of the coil trolley are loading, unloading, and transporting coils. Because the coil trolley needs to perform both horizontal and vertical movement, a portion of it is underground, and there is a certain distance in the horizontal direction. Combined with the installation space for the drag chain in the horizontal direction, this results in a deep trench along the trolley's horizontal movement, posing a significant safety hazard in the workshop. To address this safety hazard, we designed a movable cover plate at the rear of the trolley. This movable cover plate consists of several layers (the number of layers depends on the trolley's travel distance). Each layer's support is directly stacked, and they move together via rollers. The top layer of the cover plate is connected to the coil trolley; the trolley's movement moves the top layer of the cover plate. When the top layer reaches its designed position, it moves the second layer of the cover plate forward via the steel plate at the rear, and so on. In this way, the movable cover plate unfolds between the coil trolley and the uncoiler (winder), forming an open cover plate. Figure 6 , 7 (As shown).
[0003] The above are the movable cover plates we often use. They are widely used in the field of steel rolling equipment and have good results. However, this type of movable cover plate also has some shortcomings. First, because this movable cover plate needs to be stacked in multiple layers, and rollers are needed between each layer, the more layers there are, the greater the height difference. While ensuring that the top layer of the cover plate is aligned with the ground, the subsequent layers of the cover plate will be lower than the ground, and the whole is not completely flat with the ground, which poses a risk of workers accidentally tripping and falling. Second, because the cover plate is multi-layered and uneven with the ground, it affects the aesthetics. Third, when the cover plate is long, if a person steps on the movable cover plate, it will cause the cover plate to deform and dent, eventually making it unable to move normally.
[0004] With the development of the times, steel rolling equipment is constantly being updated and improved, which has led to the development of a telescopic slat frame movable cover plate assembly. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a telescopic slat frame movable cover assembly device. The telescopic slat frame movable cover assembly device provided by this utility model can be easily unfolded and retracted, and when unfolded or retracted, they are on the same plane, resulting in a flat overall surface and ease of use.
[0006] The technical solution provided by this utility model is as follows:
[0007] A telescopic slat frame movable cover assembly device includes a horizontally arranged first slat frame structure and a horizontally arranged second slat frame structure. The first slat frame structure and the second slat frame structure are arranged intersectingly and at the same height. The first slat frame structure and the second slat frame structure are slidably connected. The lower end face of the first slat frame structure is provided with a plurality of rollers, and the lower end face of the second slat frame structure is provided with a plurality of rollers.
[0008] Based on the above technical solution, the first and second row frame structures form a co-layered structure. Through cross-layouts and sliding connections, a retractable space is created, and when retracted, they lie on the same plane. This allows for easy deployment by moving apart or retraction by moving closer together, facilitating the dragging and unfolding of the second row frame structure by vehicles.
[0009] Specifically, the first row of frame structure includes a first longitudinal tube and several first transverse tubes fixed at the same height on the same side of the first longitudinal tube.
[0010] Based on the above technical solution, the first row of frame structure can be interspersed with the second row of frame structure. Furthermore, multiple first horizontal tubes increase its load-bearing capacity and make it less prone to deformation.
[0011] Specifically, the second row of frame structure includes a second longitudinal tube and several second horizontal tubes fixed at the same height on the same side of the second longitudinal tube.
[0012] Based on the above technical solution, the second row of frame structure can be interspersed with the first row of frame structure. Furthermore, multiple second horizontal tubes increase its load-bearing capacity and make it less prone to deformation.
[0013] Specifically, the number of the first horizontal tube is at least one more than the number of the second horizontal tube.
[0014] Based on the above technical solution, sufficient space can be provided in the first row of frame structure to accommodate the second horizontal tube.
[0015] Specifically, each of the second horizontal tubes is located between two adjacent first horizontal tubes.
[0016] Based on the above technical solution, the first row of frame structure and the second row of frame structure can be set at the same height.
[0017] Specifically:
[0018] The first longitudinal tube and the second longitudinal tube are set at the same height;
[0019] The first horizontal tube and the second horizontal tube are set at the same height.
[0020] Based on the above technical solution, the first row of frame structure and the second row of frame structure are set at the same height.
[0021] Specifically:
[0022] Each of the second horizontal tubes has a long, straight groove along its length.
[0023] Each of the aforementioned grooves extends through the left and right sides of the second horizontal pipe to which it is located;
[0024] A shaft parallel to the first longitudinal tube is provided through each of the first horizontal tubes;
[0025] The insert shaft passes through each of the grooves.
[0026] Based on the above technical solution, a sliding fit between the insert shaft and the groove is achieved. Furthermore, the relative movement of the insert shaft within the groove also guides the second row of the frame structure. Additionally, because the insert shaft's relative movement within the groove does not extend outside the groove, it can limit the travel of the groove's movement, thereby limiting the travel of the second row of the frame structure.
[0027] Specifically: the insert shaft and each of the grooves are slidably connected.
[0028] Based on the above technical solution, the second row of frame structure can move relative to the first row of frame structure, thus facilitating expansion and contraction.
[0029] Furthermore, the insertion shaft is located at one end of the first horizontal tube away from the first vertical tube.
[0030] Based on the above technical solution, the second row of the frame structure has a large stroke.
[0031] Furthermore, the insertion shaft is fixedly connected to each of the first horizontal tubes.
[0032] Based on the above technical solution, the insert shaft can also stabilize each of the first horizontal tubes, thereby stabilizing the structure.
[0033] Furthermore, the outer wall of the portion of the insert shaft located within each of the grooves is provided with an anti-collision sleeve.
[0034] Based on the above technical solution, it can protect against collisions between the first row of frame structures and the second row of frame structures.
[0035] Furthermore: the second longitudinal tube is equipped with a release hook.
[0036] Based on the above technical solution, the second row of frame structure can be easily and flexibly connected to the trolley so that it can be deployed under the drag of the trolley or retracted under the push of the trolley.
[0037] Specifically, the first longitudinal tube is provided with at least one roller at each end.
[0038] Specifically, the second longitudinal tube is provided with at least one roller at each end.
[0039] Specifically, at least two of the first horizontal tubes are each provided with at least one roller, and each roller is located on the left and right sides of the first row of frame structure.
[0040] Specifically, at least two of the second horizontal tubes are each provided with at least one roller, and each roller is located on the left and right sides of the second row of frame structure.
[0041] Based on the arrangement of the rollers, it is not only convenient for the movement of the first row of frame structure and the second row of frame structure, but also provides stable support.
[0042] The beneficial effects of this utility model are as follows:
[0043] 1) The telescopic slat frame movable cover plate assembly device provided by this utility model can be easily unfolded or retracted;
[0044] 2) The telescopic slat frame movable cover plate assembly device provided by this utility model maintains a flat state when it is unfolded or retracted, and the whole is flat and easy to use;
[0045] 3) Each pipe structure is stable and not easily deformed; and it is easy to use steel pipe structure, which has high load-bearing capacity. Attached Figure Description
[0046] Figure 1 This is a top view of the telescopic slat frame movable cover plate assembly device provided by this utility model when fully retracted.
[0047] Figure 2 This is a side view of the telescopic slat frame movable cover plate assembly device provided by this utility model when fully retracted.
[0048] Figure 3 This is a top view of the telescopic slat frame movable cover assembly device provided by this utility model when fully extended.
[0049] Figure 4 This is a side view of the telescopic slat frame movable cover assembly device provided by this utility model when fully unfolded.
[0050] Figure 5 This is a perspective view of the telescopic slat frame movable cover plate assembly device provided by this utility model in its unfolded state.
[0051] Figure 6 This is a schematic diagram of the structure when the cover plate of the existing technology is fully retracted.
[0052] Figure 7 This is a schematic diagram of the structure when the cover plate of the existing technology is fully unfolded.
[0053] Appendix Figures 1 to 5 The structures represented by each label are listed below:
[0054] 1. First row of frame structure; 11. First longitudinal tube; 12. First transverse tube; 13. Insert shaft; 2. Second row of frame structure; 21. Second longitudinal tube; 22. Second transverse tube; 23. Groove; 3. Roller. Detailed Implementation
[0055] The principles and features of this utility model are described below. The embodiments given are only used to explain this utility model and are not intended to limit the scope of this utility model.
[0056] It should be noted that when a part or component is considered to be "connected to," "located on," or "assembled" to another part or component, it can be directly mounted on the other part or component, or it may be located in an intermediate part or component. The terms "left," "right," "upper," "lower," and similar expressions used in this document are for illustrative purposes only.
[0057] Example 1
[0058] like Figures 1 to 5 As shown, the telescopic slat frame movable cover assembly device includes a horizontally arranged first slat frame structure 1 and a horizontally arranged second slat frame structure 2. The first slat frame structure 1 and the second slat frame structure 2 are arranged crosswise and at the same height. The first slat frame structure 1 and the second slat frame structure 2 are slidably connected. The lower end face of the first slat frame structure 1 is provided with a plurality of rollers 3, and the lower end face of the second slat frame structure 2 is provided with a plurality of rollers 3.
[0059] like Figure 1 , 2 As shown, when the telescopic frame movable cover assembly device is fully retracted, the first row frame structure 1 and the second row frame structure 2, due to their overlapping arrangement, can be retracted together. The first row frame structure 1 and the second row frame structure 2 are set at the same height, and after being retracted together, they remain on a flat plane, making the whole surface smooth and convenient for storage and use.
[0060] like Figure 3 , 4 As shown, the telescopic slat frame movable cover assembly device is fully unfolded. The first row of frame structure 1 and the second row of frame structure 2 can be easily unfolded because they are arranged in a cross pattern. The first row of frame structure 1 and the second row of frame structure 2 are set at the same height, and after unfolding, they are still a flat plane, making the whole surface flat and easy to use.
[0061] like Figure 5 As shown, the telescopic frame movable cover assembly device is unfolded, and the upper surface remains a flat plane, making it easy to use as needed. There is a margin of movement between the first row of frame structure 1 and the second row of frame structure 2, allowing for convenient unfolding by dragging the second row of frame structure 2.
[0062] The first row of frame structure 1 and the horizontally arranged second row of frame structure 2 can be made of steel pipes, which have strong load-bearing capacity, stable structure and are not easily deformed.
[0063] Example 2
[0064] like Figure 5 As shown, in the telescopic slat frame movable cover assembly device, the first slat frame structure 1 includes a first longitudinal pipe 11 and a plurality of first transverse pipes 12 fixed at the same height on the same side of the first longitudinal pipe 11. The second slat frame structure 2 includes a second longitudinal pipe 21 and a plurality of second transverse pipes 22 fixed at the same height on the same side of the second longitudinal pipe 21.
[0065] The number of first horizontal tubes 12 is at least one more than the number of second horizontal tubes 22. This provides sufficient space between adjacent first horizontal tubes 12, ensuring that each second horizontal tube 22 is located between two adjacent first horizontal tubes 12. Thus, the first row frame structure 1 and the second row frame structure 2 are arranged alternately.
[0066] Preferably, the number of first horizontal tubes 12 is one more than the number of second horizontal tubes 22. This provides sufficient space while allowing for the maximum number of second horizontal tubes 22, resulting in a stable second-row frame structure 2. In other embodiments, the number of first horizontal tubes 12 may be several times the number of second horizontal tubes 22. In this case, the structure of the second-row frame structure 2 can be simplified, and its weight can be reduced.
[0067] Example 3
[0068] like Figure 5 As shown, in the telescopic slat frame movable cover assembly device, the first longitudinal pipe 11 and the second longitudinal pipe 21 are set at the same height. Each of the first horizontal pipes 12 and each of the second horizontal pipes 22 are set at the same height.
[0069] Based on the aforementioned equal-height settings, it can be ensured that the first row of frame structure 1 and the second row of frame structure 2 remain at the same level during full retraction, expansion, and full expansion. In this way, the upper surface of the entire telescopic frame movable cover assembly device remains flat and easy to use.
[0070] Example 4
[0071] like Figure 5As shown, in the telescopic slat frame movable cover assembly device, each of the second horizontal tubes 22 has a long, straight groove 23 along its length. Each groove 23 extends through the left and right sides of the second horizontal tube 22 to which it is located. A shaft 13, parallel to the first vertical tube 11, is provided through each of the first horizontal tubes 12. The shaft 13 extends through each groove 23. In this way, a sliding fit between the shaft 13 and the groove 23 can be achieved.
[0072] Preferably, the insert shaft 13 and each of the grooves 23 are slidably connected. This results in less resistance during the retraction and expansion of the telescopic slat frame movable cover assembly device, facilitating retraction and expansion. Furthermore, the retraction and expansion movements are smooth.
[0073] The insertion shaft 13 is located on the first horizontal tube 12 and can be positioned at multiple locations. Preferably, the insertion shaft 13 is located at the end of the first horizontal tube 12 away from the first vertical tube 11. Since the movement of the groove 23 relative to the insertion shaft 13 can be limited by the insertion shaft 13, for example, the groove wall of the groove 23 reaches the insertion shaft 13, the position of the insertion shaft 13 affects the stroke of the second row of frame structure 2. With the insertion shaft 13 located at the end of the first horizontal tube 12 away from the first vertical tube 11, the second row of frame structure 2 has a larger stroke.
[0074] Example 5
[0075] In the telescopic slat frame movable cover assembly device, the insert shaft 13 is fixedly connected to each of the first horizontal tubes 12. In this way, the insert shaft 13 can play the role of reinforcing the structure and fixing each of the first horizontal tubes 12. The two ends of each first horizontal tube 12 are respectively fixed by the first vertical tube 11 and the insert shaft 13, making the structure more stable.
[0076] Example 6
[0077] In the telescopic slat frame movable cover assembly device, the outer wall of the portion of the insert shaft 13 located within each of the grooves 23 is provided with an anti-collision sleeve. The portion of the insert shaft 13 located within each of the grooves 23 may come into contact with the end of the groove 23. When the telescopic slat frame movable cover assembly device unfolds or retracts, the high speed may cause a certain degree of collision between the two ends of the groove 23 and the insert shaft 13. Therefore, anti-collision sleeves, such as rubber sleeves, can be provided for protection. Simultaneously, noise can also be reduced.
[0078] Example 7
[0079] In the telescopic slat frame movable cover assembly device, a release hook is provided on the second longitudinal tube 21. The release hook allows for easy connection of the trolley, enabling it to be extended by dragging or retracted by pushing. The release hook structure is simple to design and easy to use.
[0080] Example 8
[0081] In the telescopic slat frame movable cover assembly device, rollers 3 can be installed on the first longitudinal tube 11, the second longitudinal tube 21, the first horizontal tube 12, or the second horizontal tube 22. The rollers 3 facilitate the movement of the slat frame structure and provide support. For example, the first longitudinal tube 11 has at least one roller 3 at each end; the second longitudinal tube 21 has at least one roller 3 at each end; the two first horizontal tubes 12 on the left and right sides each have at least one roller 3 at the front and rear; the two second horizontal tubes 22 on the left and right sides each have at least one roller 3 at the front and rear. The multiple rollers 3 on the telescopic slat frame movable cover assembly device can be symmetrically arranged left and right, and front and rear, making the operation and support more stable.
[0082] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Anyone skilled in the art can smoothly implement this utility model according to the accompanying drawings and the description above. However, any modifications, alterations, and variations made by those skilled in the art without departing from the scope of the technical solution of this utility model using the disclosed technical content are equivalent embodiments of this utility model. At the same time, any equivalent changes, alterations, and variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of the technical solution of this utility model.
Claims
1. A telescopic slat frame movable cover assembly device, characterized in that: It includes a first row of frame structure (1) and a second row of frame structure (2) arranged horizontally. The first row of frame structure (1) and the second row of frame structure (2) are arranged crosswise. The first row of frame structure (1) and the second row of frame structure (2) are arranged at the same height. The first row of frame structure (1) and the second row of frame structure (2) are slidably connected. The lower end face of the first row of frame structure (1) is provided with several rollers (3). The lower end face of the second row of frame structure (2) is provided with several rollers (3).
2. The telescopic slat frame movable cover plate assembly device according to claim 1, characterized in that: The first row of frame structure (1) includes a first longitudinal tube (11) and a plurality of first transverse tubes (12) fixed at the same height on the same side of the first longitudinal tube (11); The second row of frame structure (2) includes a second longitudinal tube (21) and several second transverse tubes (22) fixed at the same height on the same side of the second longitudinal tube (21); The number of the first horizontal tube (12) is at least one more than the number of the second horizontal tube (22); Each of the second horizontal tubes (22) is located between two adjacent first horizontal tubes (12).
3. The telescopic slat frame movable cover plate assembly device according to claim 2, characterized in that: The first longitudinal tube (11) and the second longitudinal tube (21) are set at the same height; The first horizontal tube (12) and the second horizontal tube (22) are set at the same height.
4. The telescopic slat frame movable cover plate assembly device according to claim 2, characterized in that: Each of the second horizontal tubes (22) has a long straight groove (23) along its length; Each of the grooves (23) extends through the left and right sides of the second horizontal pipe (22) to which it is located; A shaft (13) parallel to the first longitudinal tube (11) is provided through each of the first horizontal tubes (12); The insert shaft (13) passes through each of the grooves (23).
5. The telescopic slat frame movable cover plate assembly device according to claim 4, characterized in that: The insert shaft (13) and each of the grooves (23) are slidably connected.
6. The telescopic slat frame movable cover plate assembly device according to claim 4, characterized in that: The insertion shaft (13) is located on the first horizontal tube (12) at one end away from the first vertical tube (11).
7. The telescopic slat frame movable cover plate assembly device according to claim 4, characterized in that: The insert shaft (13) is fixedly connected to each of the first horizontal tubes (12).
8. The telescopic slat frame movable cover plate assembly device according to claim 4, characterized in that: The outer wall of the portion of the insert shaft (13) located within each of the grooves (23) is provided with a collision protection sleeve.
9. The telescopic slat frame movable cover plate assembly device according to claim 2, characterized in that: The second longitudinal tube (21) is equipped with a release hook.
10. The telescopic slat frame movable cover plate assembly device according to claim 2, characterized in that: The first longitudinal tube (11) is provided with at least one roller (3) at each end; The second longitudinal tube (21) is provided with at least one roller (3) at each end; At least two of the first horizontal tubes (12) are each provided with at least one roller (3), and each roller (3) is located on the left and right sides of the first row frame structure (1); At least two of the second horizontal tubes (22) are each provided with at least one roller (3), and each roller (3) is located on the left and right sides of the second row frame structure (2).