A foldable ground leveling bracket

Abstract

This application relates to the field of building construction technology, and in particular to a foldable ground leveling bracket, which includes a support adjustment assembly, a folding connection assembly, and a positioning and locking assembly. The support adjustment assembly achieves height adjustment via a telescopic rod; the folding connection assembly enables the side arms to unfold and fold via a hinge; the positioning and locking assembly is used to fix the unfolded state; the top support plate has a guide groove that engages with a sliding pin, the bottom base is equipped with an anti-slip pad, and handles are provided on the outer side of the side arms. This application can significantly reduce the space occupied by the bracket during transportation and storage, improve construction efficiency, and enhance the stability and ease of operation of the bracket, thus possessing high practicality and promotional value.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, specifically a foldable ground leveling bracket. Background Technology

[0002] In the construction industry, floor leveling is a crucial step in ensuring the quality of flooring installation. Currently, several floor leveling support systems are available on the market, which adjust floor flatness by changing the height and support position. However, existing floor leveling supports are mostly fixed or modular in design, resulting in significant space requirements during transportation and storage, and increased operational complexity. Furthermore, these systems often require additional tools for installation and adjustment on-site, further reducing construction efficiency.

[0003] For example, the Chinese utility model patent (application number: 202121589347.2) discloses an "Adjustable Ground Leveling Support," which includes a base, a support rod, and an adjusting nut. The base has a threaded hole, and the support rod is threaded into the threaded hole of the base. The adjusting nut is fitted onto the support rod, and its height is adjusted by rotation. The top of the support rod has a horizontal adjustment plate for placing a ground leveling template. Although this application can achieve height adjustment through threaded adjustment, its overall structure has significant shortcomings in terms of folding and storage, making it difficult to meet the portability and efficiency requirements of construction sites. The aforementioned patent can corroborate the limitations of existing technologies.

[0004] Therefore, we have made improvements to this by proposing a foldable ground leveling bracket. Utility Model Content

[0005] The purpose of this invention is to address the problem that existing ground leveling supports are mostly fixed or modular in design, resulting in significant space requirements during transportation and storage, and increased operational complexity. Furthermore, existing devices often require additional tools for installation and adjustment on-site, further reducing construction efficiency.

[0006] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a foldable ground leveling bracket, comprising a support adjustment assembly, a folding connection assembly, and a positioning and locking assembly. The support adjustment assembly includes a bottom base, a telescopic rod, and a top support plate. The telescopic rod is vertically connected between the bottom base and the top support plate for height adjustment. The folding connection assembly is located on both sides of the bottom base and is hinged for unfolding and folding. The positioning and locking assembly is used to fix the unfolded state of the folding connection assembly, ensuring the stability of the bracket during use.

[0007] The folding connection assembly includes two symmetrically arranged side arms. One end of each side arm is connected to the side of the bottom base via a hinge, and the other end is engaged with the edge of the top support plate via a sliding pin. A reinforcing rib is provided in the middle of each side arm, extending along its length to enhance its rigidity and bending resistance. The hinge includes a fixed shaft and a rotating sleeve. The fixed shaft is fixed to the side of the bottom base, and the rotating sleeve is fitted over the fixed shaft and fixedly connected to one end of the side arm, allowing the side arm to rotate around the fixed shaft.

[0008] As a preferred technical solution of this application, the positioning and locking assembly includes a locking bolt and a locking block. The locking bolt passes through the locking block and is threadedly connected to the side of the bottom base. The inner side of the locking block is provided with an arc-shaped groove, which matches the outer contour of the side arm. When the side arm is extended to a predetermined position, the locking block presses the side arm with the locking bolt, thereby fixing its extended state.

[0009] As a preferred technical solution of this application, the telescopic rod includes an outer tube and an inner tube. The outer tube is fixed at the center of the bottom base, and the inner tube is slidably inserted into the outer tube. The top end of the inner tube is fixedly connected to the bottom surface of the top support plate. The side wall of the outer tube is provided with a plurality of equally spaced limiting holes, and the side wall of the inner tube is provided with through holes corresponding to the limiting holes. The inner tube is fixed at the required height by inserting limiting pins.

[0010] As a preferred technical solution of this application, the bottom surface of the top support plate is provided with a guide groove, which extends along the length direction of the top support plate and is used to cooperate with the sliding pin of the side arm. The sliding pin includes a pin body and a spring. One end of the pin body is fixedly connected to the end of the side arm, and the other end passes through the guide groove and extends out of the upper surface of the top support plate. The spring is sleeved on the outside of the pin body and located between the side arm and the top support plate to provide elastic support force.

[0011] As a preferred technical solution of this application, the bottom surface of the base is provided with an anti-slip pad, which is made of rubber material and is used to increase the friction between the base and the ground to prevent the bracket from sliding during use. The anti-slip pad is fixed to the bottom surface of the base by adhesive bonding.

[0012] As a preferred technical solution of this application, a handle is provided on the outer side of the side arm. The handle is fixed to the middle of the side arm by screws, which facilitates the operator to apply force when folding or unfolding the side arm. The outer surface of the handle is provided with anti-slip texture to improve grip stability during operation.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: The ground leveling bracket features a folding connection assembly and a positioning locking assembly, enabling rapid deployment and stable fixation during use. It can also be folded away for storage when not in use, significantly reducing its space requirements. Specifically, the side arms connect to the base via hinges, allowing for deployment and folding during rotation. The positioning locking assembly, using locking blocks and bolts, secures the side arms in the deployed state, ensuring stability during use. Furthermore, the telescopic rod design allows for flexible height adjustment to meet the requirements of different construction scenarios.

[0014] The guide groove and sliding pin enable quick connection and separation between the side arm and the top support plate. The sliding pin slides smoothly and precisely within the guide groove, while the elastic support provided by the spring ensures a tight fit between the pin and the guide groove, preventing loosening due to vibration or external forces.

[0015] The addition of anti-slip pads and handles further enhances the practicality and ease of operation of the support frame. The anti-slip pads increase the friction between the base and the ground, effectively preventing the support frame from slipping during use; the handles allow operators to apply force when folding or unfolding the side arms, improving construction efficiency.

[0016] In summary, this utility model, through its innovative structural design, solves the shortcomings of existing ground leveling supports in terms of portability, ease of operation, and stability, and has significant practical and promotional value. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model in its unfolded state; Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model in a folded state; Figure 3 This is a partially enlarged schematic diagram of the folding connection assembly of this utility model; Figure 4 This is a partial cross-sectional view of the positioning and locking assembly of this utility model.

[0018] The attached diagram is labeled as follows: 1. Bottom base; 2. Telescopic rod; 3. Top support plate; 4. Side arm; 5. Hinge; 6. Reinforcing rib; 7. Locking block; 8. Locking bolt; 9. Outer tube; 10. Inner tube; 11. Limiting hole; 12. Limiting pin; 13. Guide groove; 14. Sliding pin; 15. Anti-slip pad; 16. Handle. Detailed Implementation

[0019] This utility model relates to a foldable ground leveling bracket, the structure of which mainly includes a support and adjustment assembly, a folding connection assembly, and a positioning and locking assembly. The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Figure 1 As shown in the figure, this is a three-dimensional schematic diagram of the overall structure of this utility model in its unfolded state, demonstrating the state of the bracket in use. The bottom base 1 serves as the supporting foundation for the entire bracket, and its shape is a rectangular flat plate structure. An anti-slip pad 15 is provided on the bottom surface, which is fixed to the bottom surface of the bottom base 1 by adhesive bonding to increase friction with the ground. The anti-slip pad 15 is made of rubber material, and its surface has a certain degree of roughness, which effectively prevents the bracket from sliding during use.

[0020] The telescopic rod 2 is located at the center of the bottom base 1 and includes an outer tube 9 and an inner tube 10. The outer tube 9 is a hollow cylindrical structure, and its lower end is fixed to the central area of ​​the bottom base 1 by welding or threaded connection. The inner tube 10 is a solid cylindrical rod that matches the outer tube 9. Its lower end is inserted into the outer tube 9 and can slide along the axial direction of the outer tube 9 to achieve height adjustment. Several equally spaced limiting holes 11 are provided on the side wall of the outer tube 9, and through holes corresponding to the limiting holes 11 are provided on the side wall of the inner tube 10. The inner tube 10 is fixed at the required height by inserting limiting pins 12. This design allows the telescopic rod 2 to flexibly adjust the height of the support in different construction scenarios to meet actual needs.

[0021] The top support plate 3 is located at the top of the telescopic rod 2, and its bottom surface is fixedly connected to the upper end of the inner tube 10 by welding or threaded connection. The top support plate 3 is a rectangular flat plate structure, and its bottom surface has a guide groove 13 along the length direction. The guide groove 13 is used to cooperate with the sliding pin 14 of the side arm 4. The sliding pin 14 includes a pin body and a spring. One end of the pin body is fixedly connected to the end of the side arm 4, and the other end passes through the guide groove 13 and extends out of the upper surface of the top support plate 3. The spring is sleeved on the outside of the pin body and is located between the side arm 4 and the top support plate 3 to provide elastic support force. When the side arm 4 is extended to the predetermined position, the sliding pin 14 slides in the guide groove 13 and finally locks into the fixed position in the groove. The elastic force of the spring ensures a tight fit between the sliding pin 14 and the guide groove 13, avoiding loosening due to vibration or external force.

[0022] The folding connection assembly includes two symmetrically arranged side arms 4. One end of each side arm 4 is connected to the side of the bottom base 1 via a hinge 5, and the other end is engaged with the edge of the top support plate 3 via a sliding pin 14. The hinge 5 includes a fixed shaft and a rotating sleeve. The fixed shaft is fixed to the side of the bottom base 1, and the rotating sleeve is fitted over the fixed shaft and fixedly connected to one end of the side arm 4, allowing the side arm 4 to rotate around the fixed shaft. A reinforcing rib 6 is provided in the middle of the side arm 4, extending along the length of the side arm 4 to enhance its rigidity and bending resistance. The cross-section of the reinforcing rib 6 is rectangular or trapezoidal, and its thickness and width are designed according to the dimensions and load-bearing requirements of the side arm 4 to ensure that the side arm 4 has sufficient strength and stability in the unfolded state.

[0023] The positioning and locking assembly, used to secure the folding connection assembly in its unfolded state, includes a locking bolt 8 and a locking block 7. The locking bolt 8 passes through the locking block 7 and is threaded to the side of the bottom base 1. The inner side of the locking block 7 has an arc-shaped groove that matches the outer contour of the side arm 4. When the side arm 4 is unfolded to a predetermined position, the locking block 7 presses the side arm 4 against the locking bolt 8, thereby securing its unfolded state. The tightness of the locking bolt 8 can be adjusted as needed to ensure that the side arm 4 does not loosen or shift during use.

[0024] like Figure 2 As shown in the figure, this is a three-dimensional schematic diagram of the overall structure of this utility model in a folded state, demonstrating the compact storage form of the bracket when not in use. When the bracket needs to be folded for storage, first loosen the locking bolt 8 to separate the locking block 7 from the side arm 4, and then rotate the side arm 4 around the hinge 5 to a position close to the bottom base 1. At this time, the sliding pin 14 disengages from the guide groove 13, and the side arm 4 is fully folded and parallel to the bottom base 1. The entire bracket presents a flat and compact state, facilitating transportation and storage.

[0025] like Figure 3 As shown in the figure, this is a partially enlarged schematic diagram of the folding connection assembly of this utility model, focusing on the connection method between the side arm 4 and the bottom base 1 via the hinge 5 and the setting of the reinforcing rib 6. The fixing shaft of the hinge 5 is fixed to the side of the bottom base 1 by thread or welding, and the rotating sleeve is fixedly connected to one end of the side arm 4 by screws or welding. The reinforcing rib 6 is arranged along the length direction of the side arm 4, and its two ends are welded and fixed to the upper and lower surfaces of the side arm 4 respectively, forming an integral structure, which further improves the bending resistance of the side arm 4.

[0026] like Figure 4As shown in the figure, this is a partial cross-sectional view of the positioning and locking assembly of this utility model, detailing the engagement method between the locking block 7 and the side arm 4, and the fixing structure of the locking bolt 8. The arc-shaped groove of the locking block 7 completely fits the outer contour of the side arm 4, and the locking bolt 8 passes through the locking block 7 and is fixed to the side of the bottom base 1 by a threaded connection. The head of the locking bolt 8 has a hexagonal structure, which facilitates tightening operations using a wrench or other tools. The locking block 7 is made of high-strength metal material, and its thickness and hardness have been precisely calculated to ensure that it can withstand large lateral forces without deformation in the locked state.

[0027] like Figure 4 As shown in the figure, this is a partial schematic diagram of the guide groove 13 on the bottom surface of the top support plate 3 of this utility model, which engages with the sliding pin 14. It illustrates the installation position of the sliding pin 14 within the guide groove 13 and the arrangement of the spring. The guide groove 13 has a rectangular cross-section, and its width is slightly larger than the diameter of the sliding pin 14 to ensure smooth sliding within the groove. The two ends of the spring abut against the end face of the side arm 4 and the bottom surface of the top support plate 3, respectively. The spring force is precisely designed to ensure that the sliding pin 14 maintains a tight fit within the guide groove 13, while also preventing excessive spring force from affecting operational convenience.

[0028] In practical applications, the foldable floor leveling bracket of this invention can be used for floor leveling operations during building construction. For example, when laying flooring or tiles, the bracket is needed to initially level the floor. The operator first unfolds the bracket, rotates the side arm 4 around the hinge 5 to a position perpendicular to the bottom base 1, then inserts the sliding pin 14 into the guide groove 13 and locks it into a fixed position. The locking block 7 is then pressed against the side arm 4 by the locking bolt 8, completing the unfolding and fixing of the bracket. Subsequently, the height of the telescopic rod 2 is adjusted to achieve the required leveling height for the top support plate 3. After construction is completed, the operator only needs to loosen the locking bolt 8 and fold the side arm 4 close to the bottom base 1 to quickly retract the bracket. To better enable those skilled in the art to fully understand and implement this invention, the specific implementation principle of this invention is further explained below with reference to a specific application scenario.

[0029] In actual construction, operators need to use a folding floor leveling bracket to initially level the floor where flooring or tiles will be laid. First, the operator unfolds the bracket from its stored state. During unfolding, force is applied through the handle to rotate the side arm 4 around the hinge 5 to a position perpendicular to the bottom base 1. During this process, the fixed axis in the hinge 5 remains stable, and the rotating sleeve rotates synchronously with the side arm 4, ensuring that the side arm 4 can unfold smoothly. When the side arm 4 approaches the predetermined position, the pin of the sliding pin 14 slides along the guide groove 13 on the bottom surface of the top support plate 3 and finally engages in the fixed position of the guide groove 13. At this time, the elastic support force provided by the spring ensures that the sliding pin 14 and the guide groove 13 are tightly fitted, preventing loosening due to vibration or external force.

[0030] Subsequently, the operator uses the locking bolt 8 to press the locking block 7 against the side arm 4. The arc-shaped groove of the locking block 7 fits perfectly with the outer contour of the side arm 4, and the locking bolt 8 passes through the locking block 7 and is threadedly connected to the side of the bottom base 1. By adjusting the tightness of the locking bolt 8, it can be ensured that the side arm 4 will not loosen or shift in the deployed state, thus ensuring the overall stability of the support. At this time, the support is in the deployed state, and the operator can adjust the height of the telescopic rod 2 according to the actual construction needs. By sliding the inner tube 10 along the outer tube 9 and inserting the limiting pin 12 to fix it at the required height, the top support plate 3 reaches the required leveling height. The design of the anti-slip pad 15 further enhances the friction between the bottom base 1 and the ground, preventing the support from sliding during use.

[0031] After leveling the ground, the operator needs to fold the bracket for transport or storage. First, loosen the locking bolt 8 to separate the locking block 7 from the side arm 4. Next, rotate the side arm 4 around the hinge 5 until it is close to the bottom base 1, at which point the sliding pin 14 disengages from the guide groove 13. The design of the reinforcing rib 6 effectively improves the bending resistance of the side arm 4, maintaining structural integrity even during frequent folding and unfolding. When the side arm 4 is fully folded, the bracket presents a flat and compact state, facilitating storage and transportation.

[0032] Through the above steps, this utility model achieves rapid deployment and stable fixation of the ground leveling bracket during use, as well as convenient folding and storage when not in use. The key lies in the synergistic effect of the hinge 5, sliding pin 14, guide groove 13, and locking assembly. The hinge 5 provides flexible rotation for the side arm 4, the cooperation between the sliding pin 14 and the guide groove 13 ensures precise positioning between the side arm 4 and the top support plate 3, and the locking assembly further enhances the stability of the bracket in the deployed state. Furthermore, the height adjustment function of the telescopic rod 2 is achieved through the cooperation of the limiting hole 11 and the limiting pin 12, meeting the actual needs of different construction scenarios.

[0033] In summary, this utility model, through its reasonable structural design and precise matching between components, solves the shortcomings of existing ground leveling supports in terms of portability, ease of operation, and stability, and has significant practical value and promotion potential.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foldable ground levelling support, characterised in that, The system includes a support adjustment assembly, a folding connection assembly, and a positioning and locking assembly. The support adjustment assembly includes a bottom base (1), a telescopic rod (2), and a top support plate (3). The telescopic rod (2) is vertically connected between the bottom base (1) and the top support plate (3). The folding connection assembly includes two symmetrically arranged side arms (4). One end of the side arm (4) is connected to the side of the bottom base (1) through a hinge (5), and the other end is engaged with the edge of the top support plate (3) through a sliding pin (14). The positioning and locking assembly includes a locking bolt (8) and a locking block (7). The locking bolt (8) passes through the locking block (7) and is threadedly connected to the side of the bottom base (1).

2. The foldable ground leveling support as claimed in claim 1, wherein, The telescopic rod (2) includes an outer tube (9) and an inner tube (10). The outer tube (9) is fixed at the center of the bottom base (1). The inner tube (10) is slidably inserted into the outer tube (9). The top end of the inner tube (10) is fixedly connected to the bottom surface of the top support plate (3). The side wall of the outer tube (9) is provided with several equally spaced limiting holes (11). The side wall of the inner tube (10) is provided with through holes corresponding to the limiting holes (11). The inner tube (10) is fixed at the required height by inserting a limiting pin (12).

3. The foldable ground leveling support as claimed in claim 1, wherein, The bottom surface of the top support plate (3) is provided with a guide groove (13), which extends along the length of the top support plate (3); the sliding pin (14) includes a pin body and a spring, one end of the pin body is fixedly connected to the end of the side arm (4), and the other end passes through the guide groove (13) and extends out of the upper surface of the top support plate (3). The spring is sleeved on the outside of the pin body and is located between the side arm (4) and the top support plate (3).

4. The foldable ground leveling support of claim 1, wherein, The hinge (5) includes a fixed shaft and a rotating sleeve. The fixed shaft is fixed to the side of the bottom base (1). The rotating sleeve is sleeved outside the fixed shaft and fixedly connected to one end of the side arm (4). The middle part of the side arm (4) is provided with a reinforcing rib (6), which extends along the length direction of the side arm (4).

5. The foldable ground leveling support according to claim 1, wherein, The inner side of the locking block (7) is provided with an arc-shaped groove, which matches the outer contour of the side arm (4); when the side arm (4) is extended to the predetermined position, the locking block (7) presses the side arm (4) with the locking bolt (8).

6. The foldable ground leveling support of claim 1, wherein, The bottom surface of the bottom base (1) is provided with an anti-slip pad (15), which is made of rubber material and is fixed to the bottom surface of the bottom base (1) by adhesive bonding.

7. A foldable ground leveling bracket according to claim 1, characterized in that, The side arm (4) is provided with a handle (16) on the outside, and the handle (16) is fixed to the middle of the side arm (4) by screws; the outer surface of the handle (16) is provided with anti-slip texture.

8. The foldable ground leveling support of claim 3, wherein, The cross-section of the guide groove (13) is rectangular, and its width is slightly larger than the diameter of the sliding pin (14); the two ends of the spring abut against the end face of the side arm (4) and the bottom face of the top support plate (3), respectively.

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