A foldable floor construction elevation frame

Abstract

This utility model relates to the field of floor elevation technology and discloses a foldable floor construction elevation frame, including a base platform. An elevation rod is threadedly connected to the upper surface of the base platform, and an adjusting block is threadedly connected to the side wall of the elevation rod. Support legs are rotatably connected to the side walls of the base platform, and support feet are rotatably connected to the side walls of the support legs. A locking assembly is provided inside the base platform, and an adjusting assembly is provided on the side walls of the support feet. The locking assembly includes a screw, a connecting block, and a connecting strip. The side wall of the screw is rotatably connected to the inside of the base platform, and the internal thread of the connecting block is threaded to the side wall of the screw. In this utility model, through the meshing transmission of a worm gear and a worm wheel and its reverse self-locking characteristics, the connecting block drives the connecting strip to push the support legs to unfold synchronously and lock at any angle, thereby achieving a controllable and stable unfolding angle of the support legs. This structure improves the support stability of the elevation frame during construction on complex ground surfaces.

Description

Technical Field

[0001] This utility model relates to the field of floor elevation technology, and in particular to a foldable floor construction elevation frame. Background Technology

[0002] In flooring construction in industrial plants, warehousing and logistics centers, and large supermarkets, precise control of floor elevation and flatness is crucial for ensuring the ground's load-bearing capacity, safety, and the accuracy of subsequent equipment installation. Foldable flooring elevation frames, as portable auxiliary tools, provide a reference point for construction by setting a baseline height. They are widely used in the laying of various flooring materials such as concrete, mortar, and epoxy, and their performance directly affects construction efficiency and project quality. With the diversification of construction scenarios (such as uneven ground surfaces, large construction areas, and tight schedules), higher demands are placed on the support stability, ease of adjustment, and foldable storage of elevation frames. In existing technologies, the support structure of traditional floor construction elevation frames mostly adopts a fixed-angle tripod or a manually extendable support leg design. Its mechanical structure typically includes a base, support legs, and an elevation control rod. The support legs are connected to the base via hinges, and when extended, they are manually moved to the approximate angle and then locked using bolts, clips, or spring pins. The technical principle mainly utilizes the stability of a triangle, forming a stable support through three-point contact between the support legs and the ground, and then setting the construction reference height through scales or adjustable sliders on the elevation control rod. However, existing technologies for adjusting and locking the angle of the support legs have significant limitations. Relying on manual judgment of the unfolding angle makes precise control difficult, and the locking components are prone to loosening under construction vibrations or external impacts, leading to leg angle deviations or even retraction, thus compromising the stability of the elevation benchmark and affecting the accuracy of the floor construction. This severely reduces construction efficiency. Therefore, a foldable floor construction elevation frame is proposed to address these problems. Summary of the Invention

[0003] To overcome the above shortcomings, this utility model provides a foldable floor construction elevation frame, which aims to improve the problems of the existing technology where the legs are easily retracted due to external force after being unfolded and the angle adjustment accuracy is insufficient.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A foldable floor construction elevation frame includes a base platform, an elevation rod threadedly connected to the upper surface of the base platform, an adjustment block threadedly connected to the side wall of the elevation rod, a support leg rotatably connected to the side wall of the base platform, a support foot rotatably connected to the side wall of the support leg, a locking component provided inside the base platform, and an adjustment component provided on the side wall of the support foot. The locking assembly includes a screw, a connecting block, and a connecting strip. The side wall of the screw is rotatably connected to the inside of the base platform. The connecting block is internally threaded to the side wall of the screw. One end of the connecting strip is rotatably connected to the side wall of the connecting block, and the other end of the connecting strip is rotatably connected to the side wall of the support leg. A worm gear is fixedly connected to the side wall of the screw. A connecting rod is rotatably connected to the inside of the base platform. A worm gear is fixedly connected to the side wall of the connecting rod, and a handle is fixedly connected to one end of the connecting rod.

[0005] As a further description of the above technical solution: The adjustment assembly includes a rotating shaft, a ratchet, and a pawl. The side wall of the rotating shaft is fixedly connected to one end of the support leg, the inner wall of the ratchet is fixedly connected to the side wall of the rotating shaft, and the side wall of the pawl is rotatably connected to the side wall of the support leg. The pawl and the ratchet are engaged.

[0006] As a further description of the above technical solution: The worm gear sidewall is rotatably connected inside the base platform, and the worm gear meshes with the worm wheel.

[0007] As a further description of the above technical solution: The support leg is fixedly connected to a mounting cover, and the ratchet and pawl are both located inside the mounting cover.

[0008] As a further description of the above technical solution: The sidewall of the rotating shaft passes through the inside of the support leg and is rotatably connected inside the mounting cover.

[0009] As a further description of the above technical solution: A spring is provided on the side wall of the pawl, one end of the spring is fixedly connected to the side wall of the pawl, and the other end of the spring is fixedly connected to the side wall of the support foot.

[0010] As a further description of the above technical solution: A paddle is fixedly connected to the side wall of the pawl, and the side wall of the paddle is slidably connected inside the mounting cover.

[0011] This utility model has the following beneficial effects: 1. In this utility model, through the meshing transmission of the worm and the worm wheel and the reverse self-locking characteristics, the connecting block drives the connecting strip to push the support leg to unfold synchronously and lock at any angle, thereby achieving the effect of controllable and stable fixation of the support leg unfolding angle. This solves the problem that the existing traditional support leg is easy to retract due to external force after unfolding and the angle adjustment accuracy is insufficient. The above structure improves the support stability of the elevation frame when constructing on complex ground.

[0012] 2. In this utility model, the engagement and disengagement of the pawl and ratchet are driven by the paddle, which allows the support foot to be flexibly adjusted around the pivot and quickly locked, thereby achieving the effect of the support foot closely fitting different slopes or uneven ground. This solves the problem of the fixed angle of the existing traditional support foot and the instability caused by uneven ground. The above structure improves the adaptability of the elevation frame to complex ground. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of a foldable floor construction elevation frame proposed in this utility model; Figure 2 This is a structural schematic diagram of a locking component for a foldable floor construction elevation frame proposed in this utility model. Figure 3 This is a schematic diagram of the support legs of a foldable floor construction elevation frame proposed in this utility model; Figure 4 This is a schematic diagram of the structure of the adjustment component of a foldable floor construction elevation frame proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0014] Legend: 1. Base platform; 2. Elevation bar; 3. Adjusting block; 4. Support leg; 5. Connecting rod; 6. Handle; 7. Worm gear; 8. Screw; 9. Worm wheel; 10. Connecting block; 11. Connecting strip; 12. Support foot; 13. Mounting cover; 14. Rotating shaft; 15. Ratchet; 16. Pad; 17. Spring; 18. Paddle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Reference Figures 1-2This utility model provides an embodiment of a foldable floor construction elevation frame, including a base platform 1. The base platform 1 serves to support various components and provide an installation foundation. An elevation rod 2 is threadedly connected to the upper surface of the base platform 1. The elevation rod 2 serves as a reference carrier for elevation adjustment, achieving a precise reference effect for the floor construction height. An adjustment block 3 is threadedly connected to the side wall of the elevation rod 2. The adjustment block 3 is used to move up and down by engaging with the threaded connection of the elevation rod 2 to achieve the effect of setting the floor construction reference height. A support leg 4 is rotatably connected to the side wall of the base platform 1. The support leg 4 provides stable support for the base platform 1, ensuring the overall elevation frame is placed stably. A support foot 12 is rotatably connected to the side wall of the support leg 4. The support foot 12 increases the contact area with the ground, improving the stability of the support leg 4 on the ground. A locking component is provided inside the base platform 1, and an adjustment component is provided on the side wall of the support foot 12. The locking assembly includes a screw 8, a connecting block 10, and a connecting strip 11. The screw 8 is rotatably connected to the inside of the base 1. The screw 8 rotates to move the connecting block 10, thereby adjusting the unfolding angle of the support leg 4. The connecting block 10 is internally threaded to the side wall of the screw 8. The connecting block 10 moves axially under the drive of the screw 8, which in turn drives the support leg 4 to move via the connecting strip 11. One end of the connecting strip 11 is rotatably connected to the side wall of the connecting block 10, and the other end is rotatably connected to the side wall of the support leg 4. The connecting strip 11 transmits the force of the connecting block 10 to the support leg 4, enabling the support leg 4 to rotate around the base 1. A worm gear 9 is fixedly connected to the side wall of the screw 8 and rotatably connected inside the base 1. There is a connecting rod 5, which is used to transmit the rotational power of the handle 6 to the worm 7 to achieve the effect of power transmission. The worm 7 is fixedly connected to the side wall of the connecting rod 5. The worm 7 is used to mesh with the worm wheel 9 to convert the rotational motion of the connecting rod 5 into the rotational motion of the worm wheel 9 and the screw 8, thereby changing the direction of power transmission and achieving the effect of deceleration and torque increase. The handle 6 is fixedly connected to one end of the connecting rod 5. The handle 6 is used for the operator to hold and rotate, thereby achieving the effect of conveniently driving the connecting rod 5 to rotate. The side wall of the worm 7 is rotatably connected to the inside of the base 1. The worm 7 meshes with the worm wheel 9. The worm 7 and the worm wheel 9 perform meshing transmission motion to achieve precise control of the rotation angle of the screw 8, thereby achieving the effect of precise adjustment of the unfolding angle of the support leg 4. Reference Figures 3-5The adjustment assembly includes a rotating shaft 14, a ratchet 15, and a pawl 16. The rotating shaft 14 connects the support leg 4 and the support foot 12, providing a pivot for their relative rotation, thus achieving the effect of adjusting the angle of the support foot 12. The side wall of the rotating shaft 14 is fixedly connected to one end of the support leg 4. The inner wall of the ratchet 15 is fixedly connected to the side wall of the rotating shaft 14. The ratchet 15 cooperates with the pawl 16 to form a one-way lock, achieving the fixed effect after the angle of the support foot 12 is adjusted. The side wall of the pawl 16 is rotatably connected to the side wall of the support foot 12. The pawl 16 engages with the ratchet 15, and the pawl 16 cooperates with the ratchet 15 to perform engaging and disengaging movements, achieving the effect of controlling the fixing and adjustment of the angle of the support foot 12. A mounting cover 13 is fixedly connected to the side wall of the support foot 12. The mounting cover 13 protects the internal components and prevents dust and impurities from entering. Both the ratchet 15 and the pawl 16 are located inside the mounting cover 13. The side wall of the rotating shaft 14 passes through the support foot. The pawl 12 is rotatably connected inside the mounting cover 13. The rotating shaft 14 rotates in coordination with the mounting cover 13, thereby improving the rotational stability of the rotating shaft 14. A spring 17 is provided on the side wall of the pawl 16. The function of the spring 17 is to provide elastic force to tightly engage the pawl 16 and the ratchet 15. One end of the spring 17 is fixedly connected to the side wall of the pawl 16, and the other end of the spring 17 is fixedly connected to the side wall of the support leg 12. The spring 17 moves in conjunction with the pawl 16 to achieve the effect of automatically resetting and locking the pawl 16. A lever 18 is fixedly connected to the side wall of the pawl 16. The lever 18 is used by the operator to control the separation of the pawl 16 and the ratchet 15, thereby achieving the effect of convenient adjustment. The side wall of the lever 18 is slidably connected inside the mounting cover 13. The lever 18 moves in conjunction with the mounting cover 13 to limit the movement trajectory of the lever 18 and protect the operation safety.

[0017] Working principle: When using this equipment to raise the elevation, the elevation rod 2, which is threadedly connected to the upper surface of the base platform 1, serves as the reference carrier for elevation control. Its bottom is kept perpendicular to the ground by the support of the base platform 1 and the support leg 4. Rotating the adjusting block 3 allows it to move up and down along the side thread of the elevation rod 2 until the top surface of the adjusting block 3 or the preset reference surface is aligned with the design elevation of the floor. Since the adjusting block 3 and the elevation rod 2 are tightly connected by threads, millimeter-level precision adjustment can be achieved. Finally, the position of the adjusting block 3 serves as the reference benchmark for floor construction. When the opening and closing degree of the support leg 4 needs to be adjusted, turn the handle 6 to drive the connecting rod 5 to rotate, which in turn causes the worm 7 fixed to the side wall of the connecting rod 5 to rotate synchronously. Since the worm 7 meshes with the worm wheel 9 on the side wall of the screw 8, the rotation of the worm 7 drives the worm wheel 9 and the screw 8 to rotate inside the base 1. When the screw 8 rotates, the connecting block 10 threaded to its side wall moves axially along the screw 8. Through the connecting strip 11 rotatably connected to the side wall of the connecting block 10, the support leg 4 is pushed to rotate outward about the connection point with the base 1, so as to realize the synchronous unfolding of the three support legs 4. When the support leg 4 is unfolded to the required angle, it stops. Turning handle 6 causes the worm gear 7 and worm wheel 9 to mesh with a reverse self-locking characteristic, preventing the worm gear 9 from driving the worm gear 7 to rotate. The screw 8 is fixed in position, and the connecting block 10 and connecting strip 11 remain stationary, thus locking the support leg 4 at the current angle and preventing the support leg 4 from retracting due to external force during construction. When folding is required, turn handle 6 in the opposite direction. The connecting rod 5 drives the worm gear 7, worm wheel 9, and screw 8 to rotate in the opposite direction. The connecting block 10 moves in the opposite direction along the axis of the screw 8, pulling the support leg 4 inward through the connecting strip 11 until the three support legs 4 retract to the side wall of the base platform 1, completing the folding and reducing the storage volume. When the support foot 12, which is rotatably connected to one end of the support leg 4, needs to be in contact with the ground, if there is a slope or unevenness in the ground, the angle between the support foot 12 and the support leg 4 can be adjusted by adjusting the component. Move the lever 18 on the side wall of the support foot 12 to drive the pawl 16 to overcome the elastic force of the spring 17 and disengage from the tooth groove of the ratchet 15, thus unlocking it. Rotate the support foot 12 so that it rotates around the pivot 14, which is fixed to one end of the support leg 4, until the bottom surface of the support foot 12 is completely in contact with the ground. Release the lever 18, and the spring 17 will reset and push the pawl 16 to re-engage into the tooth groove of the ratchet 15, thus fixing the angle of the support foot 12. The mounting cover 13 protects the ratchet 15, pawl 16 and other components to prevent construction dust or debris from affecting the transmission.

[0018] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 floor construction elevation frame, comprising a base platform (1), characterized in that: The upper surface of the base (1) is threaded with an elevation rod (2), the side wall of the elevation rod (2) is threaded with an adjustment block (3), the side wall of the base (1) is rotatably connected with a support leg (4), the side wall of the support leg (4) is rotatably connected with a support foot (12), the base (1) is provided with a locking component, and the side wall of the support foot (12) is provided with an adjustment component; The locking assembly includes a screw (8), a connecting block (10), and a connecting strip (11). The side wall of the screw (8) is rotatably connected to the inside of the base (1). The connecting block (10) is threadedly connected to the side wall of the screw (8). One end of the connecting strip (11) is rotatably connected to the side wall of the connecting block (10), and the other end of the connecting strip (11) is rotatably connected to the side wall of the support leg (4). A worm gear (9) is fixedly connected to the side wall of the screw (8). A connecting rod (5) is rotatably connected to the inside of the base (1). A worm gear (7) is fixedly connected to the side wall of the connecting rod (5). A handle (6) is fixedly connected to one end of the connecting rod (5).

2. The foldable floor construction elevation frame according to claim 1, characterized in that: The adjustment assembly includes a rotating shaft (14), a ratchet (15), and a pawl (16). The side wall of the rotating shaft (14) is fixedly connected to one end of the support leg (4). The inner wall of the ratchet (15) is fixedly connected to the side wall of the rotating shaft (14). The side wall of the pawl (16) is rotatably connected to the side wall of the support foot (12). The pawl (16) engages with the ratchet (15).

3. The foldable floor construction elevation frame according to claim 1, characterized in that: The worm (7) is rotatably connected to the inside of the base (1) and the worm (7) meshes with the worm wheel (9).

4. The foldable floor construction elevation frame according to claim 2, characterized in that: The support leg (12) is fixedly connected to the side wall of the mounting cover (13), and the ratchet (15) and pawl (16) are both located inside the mounting cover (13).

5. A foldable floor construction elevation frame according to claim 4, characterized in that: The side wall of the pivot (14) passes through the inside of the support foot (12) and is rotatably connected inside the mounting cover (13).

6. A foldable floor construction elevation frame according to claim 4, characterized in that: A spring (17) is provided on the side wall of the pawl (16). One end of the spring (17) is fixedly connected to the side wall of the pawl (16), and the other end of the spring (17) is fixedly connected to the side wall of the support leg (12).

7. A foldable floor construction elevation frame according to claim 6, characterized in that: The pawl (16) is fixedly connected to a paddle (18) on its side wall, and the paddle (18) is slidably connected to the inside of the mounting cover (13).

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