Supporting leg folding mechanism

Abstract

The utility model discloses a supporting leg folding mechanism, belongs to the technical field of construction facilities, and solves the problems in the prior art that the adaptability to uneven ground is insufficient, the occupied space of supporting legs is large, the supporting legs are not easy to stack in the transportation and storage process, parts are easy to lose, and the normal use of the device is influenced. Comprising a connecting supporting leg and a supporting leg extension frame, the supporting leg extension frame is horizontally arranged on the construction ground, a supporting leg storage groove is formed in the front portion of an extension frame body of the supporting leg extension frame, the connecting supporting leg is vertically arranged at the front end of the supporting leg extension frame, and the lower end of the connecting supporting leg is movably connected with the inner wall of the front end of the supporting leg storage groove through a supporting leg hinge base; the connecting supporting legs are provided with connecting mechanisms used for being connected with the lower portions of the baffles. The construction platform is reasonable in design, foldable in structure, small in occupied space, convenient to transport and store, high in adaptability to the installation environment, short in installation and adjustment time and high in construction operation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of construction facility technology, and specifically relates to a leg folding mechanism. Background Technology

[0002] Existing temporary construction barriers are mostly supported by integrated leg structures welded to the barriers. This traditional support structure is ill-suited for uneven ground surfaces, resulting in poor flatness and inconsistent heights between the fixed barriers, affecting the overall aesthetics. Furthermore, the existing integrated leg structures occupy a large amount of space and are difficult to stack during transportation and storage. Additionally, some existing conventional split-type leg structures, due to their numerous components, are not only cumbersome to assemble on-site, time-consuming to install and adjust, but also frequently lose parts during transportation, affecting the normal operation of the device. Therefore, it is necessary to improve the existing support structure of temporary construction barriers. Utility Model Content

[0003] This utility model addresses the above-mentioned problems by providing a foldable outrigger mechanism that occupies little space, is easy to transport and store, has strong adaptability to the installation environment, short installation and adjustment time, and high construction efficiency.

[0004] The technical solution adopted by this utility model is as follows: the leg folding mechanism includes a connecting leg and a leg extension frame, characterized in that: the leg extension frame is horizontally arranged on the construction ground, the front part of the extension frame body of the leg extension frame is provided with a leg storage groove, the connecting leg is vertically arranged at the front end of the leg extension frame, and the lower end of the connecting leg is movably connected to the inner wall of the front end of the leg storage groove through a leg hinge seat, and the connecting leg is also provided with a connecting mechanism for connecting to the lower part of the baffle.

[0005] The connecting leg includes a leg stud body. The lower end of the leg stud body is rotatably connected to the leg hinge seat, and the upper end of the leg stud body is provided with a leg screw cap. The connecting mechanism is threadedly connected to the leg stud body of the connecting leg through the leg connecting part. The leg screw cap is used to drive the connecting leg to rotate within the leg hinge seat at the bottom, thereby adjusting the vertical arrangement position of the connecting mechanism threaded on the leg stud body of the connecting leg.

[0006] The outrigger hinge seat has a stud insertion cavity in its center. Two sets of radially symmetrically arranged stud limiting pins are provided on the inner wall of the stud insertion cavity. Correspondingly, a stud limiting annular groove is provided at the lower end of the outrigger stud body, at the position where it engages with the stud limiting pins. Furthermore, a spherical head is provided at the bottom of the outrigger stud body. The engagement of the stud limiting pins in the stud insertion cavity of the outrigger hinge seat with the stud limiting annular groove at the lower end of the outrigger stud body restricts the position of the connecting outrigger within the outrigger hinge seat. Simultaneously, the engaging structure provides smooth guidance for the rotation of the connecting outrigger within the outrigger hinge seat.

[0007] The support leg extension frame has a folding clearance notch on the front side wall of the support leg storage slot to avoid the support leg connection part of the connecting mechanism. When the connecting legs are folded back into the support leg storage slot of the support leg extension frame, the folding clearance notch on the side wall of the support leg storage slot allows for partial avoidance of the support leg connection part of the connecting mechanism that has been rotated to a lateral position, thereby effectively reducing the overall height of the structure and facilitating the extension, retraction, insertion, and handling of the folded structure.

[0008] Symmetrical leg folding positioning blocks are arranged on both sides of the outer side of the outrigger hinge seat. Correspondingly, leg folding guide blocks are respectively provided on the left and right inner walls of the front end of the outrigger storage slot of the outrigger extension frame to cooperate with the leg folding positioning blocks. This allows for effective guidance and stable support for changes in the position of the connected outrigger during the process of folding or standing the outrigger in the outrigger storage slot of the outrigger extension frame using the leg hinge seat at its lower end. The cooperation between the leg folding positioning blocks on the outside of the outrigger hinge seat and the leg folding guide blocks at the front end of the outrigger storage slot provides effective guidance and stable support for changes in the position of the connected outrigger.

[0009] The outrigger folding guide block includes a sheet-like block body, on which are respectively provided a vertical positioning slot and a horizontal positioning slot for the hinge seat, and a transition guide groove is provided between the horizontal positioning slot and the vertical positioning slot. This utilizes the cooperation between the outrigger folding positioning block outside the outrigger hinge seat and the vertical and horizontal positioning slots on the outrigger folding guide block to provide stable support and positioning for the vertical upright position and the horizontal folded position of the connecting outrigger, respectively; and the transition guide groove on the outrigger folding guide block provides smooth guidance for the connecting outrigger to change between the two positions.

[0010] The connecting mechanism is a locking type connecting mechanism for connecting two sets of adjacent vertical baffles. The locking type connecting mechanism includes a fixed clamping plate, a guide connecting rod on the fixed clamping plate, and a movable clamping plate movably mounted on the guide connecting rod. A locking connecting cavity is formed between the movable clamping plate and the fixed clamping plate, and baffle pressing protrusions are respectively provided on opposite sides of the movable and fixed clamping plates. A wedge-shaped locking block is also movably mounted on the guide connecting rod and behind the movable clamping plate. A positioning pin is fixedly mounted on the guide connecting rod body behind the wedge-shaped locking block, and a support leg connecting part is also provided at the rear end of the guide connecting rod. During the process of the vertically moving wedge-shaped locking block driving the movable clamping plate to press and approach the fixed clamping plate, the baffle pressing protrusions on the fixed and movable clamping plates securely press the connecting parts between the two sets of adjacent vertical baffles, ensuring the reliability of the connection between the connecting leg and the bottom of the baffle.

[0011] The beneficial effects of this utility model are as follows: Because this utility model adopts a horizontally arranged support leg extension frame on the construction ground, the front of the main body of the support leg extension frame is provided with a support leg storage groove, the connecting legs are vertically arranged at the front end of the support leg extension frame, and the lower end of the connecting legs is movably connected to the inner wall of the front end of the support leg storage groove through a support leg hinge seat. The connecting legs are provided with a connecting mechanism. Therefore, its design is reasonable, the structure is foldable, it occupies little space, and it is convenient for transportation and storage. In addition, it has strong adaptability to the installation environment, short installation and adjustment time, and high construction efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model (the connecting leg is in an upright state).

[0013] Figure 2 yes Figure 1 This diagram illustrates a usage configuration where the connecting legs are folded and stored in the leg storage slot.

[0014] Figure 3 yes Figure 1 A schematic diagram of a leg extension frame in a Chinese design.

[0015] Figure 4 yes Figure 1 A schematic diagram of a connection structure for connecting legs and locking connection mechanism.

[0016] Figure 5 yes Figure 1 A schematic diagram of a connection structure between the connecting leg and the leg hinge seat.

[0017] Figure 6 yes Figure 5 A partial sectional view of the lower structure of the [structure].

[0018] Figure 7yes Figure 6 A sectional view along line AA.

[0019] Figure 8 yes Figure 5 The outrigger hinge seat and Figure 3 A schematic diagram of a connection structure for the folding guide block of the outrigger (the connecting outrigger is in the upright state).

[0020] Figure 9 yes Figure 8 The diagram shows a connection structure of the outrigger hinge seat when the outrigger is in a folded state.

[0021] The numbers in the diagram are explained as follows: 1. Leg extension frame; 2. Connecting leg; 3. Leg hinge seat; 4. Locking connection mechanism; 5. Leg screw cap; 6. Leg storage slot; 7. Folding clearance notch; 8. Extension frame body; 9. Leg folding guide block; 10. Leg connection part; 11. Guide connecting rod; 12. Fixed clamp; 13. Movable clamp; 14. Locking connection cavity; 15. Wedge-shaped locking block; 16. Block positioning pin; 17. Leg stud body; 18. Leg folding positioning block; 19. Stud limit pin; 20. Stud insertion cavity; 21. Stud limit annular groove; 22. Stud bottom spherical head; 23. Hinge seat vertical positioning slot; 24. Transition guide groove; 25. Hinge seat horizontal positioning slot. Detailed Implementation

[0022] according to Figures 1-9 The specific structure of this utility model is described in detail. The outrigger folding mechanism includes an outrigger extension frame 1 horizontally arranged on the construction ground. The front of the extension frame body 8 of the outrigger extension frame 1 is provided with an outrigger storage groove 6. A vertically arranged connecting outrigger 2 is provided at the front end of the outrigger extension frame 1. The connecting outrigger 2 is composed of an outrigger stud body 17, the lower end of which is rotatably connected to an outrigger hinge seat 3. An outrigger screw cap 5 is also provided at the upper end of the outrigger stud body 17. The outrigger screw cap 5 is then used to drive the connecting outrigger 2 to rotate within the bottom outrigger hinge seat 3, thereby adjusting the vertical arrangement position of the threaded connection mechanism on the outrigger stud body 17.

[0023] The lower end of the support leg stud body 17 connecting the support leg 2 is movably connected to the inner wall of the front end of the support leg storage groove 6 of the support leg extension frame 1 via the support leg hinge seat 3. The middle of the support leg hinge seat 3 is provided with a stud insertion cavity 20 for connecting to the lower end of the support leg stud body 17. Two sets of radially symmetrically arranged stud limiting pins 19 are provided on the inner wall of the stud insertion cavity 20. Correspondingly, a stud limiting annular groove 21 is provided at the lower end of the support leg stud body 17, at the position where it engages with the stud limiting pins 19. A stud bottom spherical head 22 is provided at the bottom end of the support leg stud body 17. Thus, the position of the connecting leg 2 within the support leg hinge 3 is restricted by the engagement of the stud limiting pin 19 in the stud insertion cavity 20 with the stud limiting annular groove 21 at the lower end of the supporting leg stud body 17. At the same time, the engagement structure of the stud limiting pin 19 and the stud limiting annular groove 21 also provides a smooth guide for the rotation of the connecting leg 2 within the support leg hinge 3.

[0024] Furthermore, symmetrical leg folding positioning blocks 18 are also provided on both sides of the outer side of the outrigger hinge base 3; correspondingly, leg folding guide blocks 9 are respectively provided on the inner walls of the left and right sides of the front end of the outrigger storage groove 6 of the outrigger extension frame 1 for cooperating with the leg folding positioning blocks 18. The leg folding guide block 9 is composed of a sheet-like block body, and from front to back, the block body is provided with a vertical positioning groove 23 and a horizontal positioning groove 25 of the hinge base, and a transition guide groove 24 is provided between the horizontal positioning groove 25 and the vertical positioning groove 23 of the hinge base. Furthermore, during the process of folding and storing or standing up the connecting leg 2 within the leg storage slot 6 of the leg extension frame 1 using the lower end of the leg hinge seat 3, the leg folding positioning block 18 outside the leg hinge seat 3 is used to connect with the vertical positioning slot 23 and the horizontal positioning slot 25 of the hinge seat on the leg folding guide block 9 to provide stable support and positioning for the vertical upright position and the horizontal storage position of the connecting leg 2 respectively; and, through the transition guide groove 24 between the two positioning slots on the leg folding guide block 9, the connecting leg 2 is smoothly guided between the vertical and horizontal positions.

[0025] Meanwhile, a connecting mechanism is also provided on the connecting leg 2. The connecting mechanism is a locking connecting mechanism 4 used to connect the lower part of the frame of two sets of adjacent vertical baffles. The locking connecting mechanism 4 includes a fixed clamping plate 12, a guide connecting rod 11 is provided on the fixed clamping plate 12, and a movable clamping plate 13 is movably provided on the guide connecting rod 11. A locking connecting cavity 14 is formed between the movable clamping plate 13 and the fixed clamping plate 12; and baffle pressing protrusions are respectively provided on the opposite side of the movable clamping plate 13 and the fixed clamping plate 12. A wedge-shaped locking block 15 is also movably provided on the guide connecting rod 11 and the rear side of the movable clamping plate 13. A block positioning pin 16 is fixedly provided on the rod body of the guide connecting rod 11 on the rear side of the wedge-shaped locking block 15. A leg connecting part 10 is also provided at the rear end of the guide connecting rod 11; the locking connecting mechanism 4 is threadedly connected to the leg stud body 17 of the connecting leg 2 through the leg connecting part 10. Thus, as the vertically moving wedge-shaped locking block 15 drives the movable clamping piece 13 to press and approach the fixed clamping piece 12, the baffle pressing protrusions on the fixed clamping piece 12 and the movable clamping piece 13 are used to firmly press the connection between the two sets of adjacent vertical baffles, ensuring the reliability of the connection between the connecting leg 2 and the bottom of the baffle.

[0026] In addition, on the side wall of the front part of the support leg storage slot 6 of the support leg extension frame 1, at a position corresponding to the locking connection mechanism 4 after the support leg 2 is folded and stored, a folding clearance notch 7 is provided to avoid the support leg connection part 10 of the locking connection mechanism 4. When the support leg 2 is folded and stored back into the support leg storage slot 6 of the support leg extension frame 1, the folding clearance notch 7 on the side wall of the support leg storage slot 6 allows for partial clearance of the support leg connection part 10 of the locking connection mechanism 4 when it is rotated to the lateral position. This effectively reduces the overall height of the support leg extension frame 1 structure after folding and storing, and facilitates the extension, retraction, insertion, and transportation of the folded structure.

[0027] During the use of this outrigger folding mechanism, when it is necessary to vertically erect the connecting outrigger 2 to support the temporary construction barrier, the construction workers move the connecting outrigger 2 upwards, causing it to stand up from the outrigger storage slot 6 of the outrigger extension frame 1. The vertical positioning support of the connecting outrigger 2 is then secured by the engagement of the outrigger folding positioning block 18 on the outside of the outrigger hinge seat 3 at the lower end of the connecting outrigger 2 and the vertical positioning slot 23 on the outrigger folding guide block 9. Then, the locking connection mechanism 4 on the connecting outrigger 2 is connected to the connection point between the lower parts of two adjacent vertical barriers; and the outrigger extension frame 1 is fixedly connected to the ground, so that the connecting outrigger 2, vertically arranged at the front end of the outrigger extension frame 1, stabilizes each vertical barrier of the construction enclosure. Meanwhile, given the unevenness of the construction ground, the connecting leg 2 can be rotated within the bottom connecting leg hinge seat 3 by rotating the outrigger screw cap 5. This allows for flexible adjustment of the vertical arrangement of the threaded locking connection mechanism 4 on the connecting leg 2, reducing the impact of terrain on the placement of vertical baffles and improving overall aesthetics. It is understood that, depending on specific usage needs, this outrigger folding mechanism can be used independently or in conjunction with a counterweight base for auxiliary fixation.

[0028] When the temporary construction barrier needs to be removed or dismantled, the connection between the locking connection mechanism 4 and the vertical barrier is loosened. Then, the construction personnel move the connecting leg 2 downwards, so that the connecting leg 2 is folded and stored back into the leg storage slot 6 of the leg extension frame 1. The connecting leg 2 is then secured in a stable position by engaging with the leg folding positioning block 18 on the outside of the leg hinge seat 3 at the lower end of the connecting leg 2 and the horizontal positioning slot 25 on the hinge seat on the leg folding guide block 9. This makes it easier to use, transport and store the entire device.

Claims

1. A leg folding mechanism, comprising connecting legs (2) and a leg extension frame (1), characterized in that: The support leg extension frame (1) is horizontally arranged on the construction ground. The front part of the extension frame body (8) of the support leg extension frame (1) is provided with a support leg storage groove (6). The connecting support leg (2) is vertically arranged at the front end of the support leg extension frame (1). The lower end of the connecting support leg (2) is movably connected to the inner wall of the front end of the support leg storage groove (6) through the support leg hinge seat (3). The connecting support leg (2) is also provided with a connecting mechanism for connecting to the lower part of the baffle.

2. The leg folding mechanism according to claim 1, characterized in that: The connecting leg (2) includes a leg stud body (17), the lower end of which is rotatably connected to the leg hinge seat (3), and the upper end of which is provided with a leg screw cap (5). The connecting mechanism is threadedly connected to the leg stud body (17) of the connecting leg (2) through the leg connecting part (10).

3. The leg folding mechanism according to claim 2, characterized in that: The support leg hinge seat (3) is provided with a stud insertion cavity (20) in the middle. The inner wall of the stud insertion cavity (20) is provided with two sets of stud limiting pins (19) arranged radially symmetrically. Correspondingly, the lower end of the support leg stud body (17) and the position where it engages with the stud limiting pins (19) are provided with a stud limiting annular groove (21). Furthermore, the bottom end of the support leg stud body (17) is also provided with a stud bottom spherical head (22).

4. The leg folding mechanism according to claim 2, characterized in that: The support leg extension frame (1) has a folding clearance notch (7) on the side wall of the front part of the support leg storage groove (6) for avoiding the support leg connection part (10) of the connection mechanism.

5. The leg folding mechanism according to claim 1, characterized in that: The two sides of the outrigger hinge seat (3) are symmetrically provided with outrigger folding positioning blocks (18). Correspondingly, the left and right inner walls of the outrigger storage groove (6) of the outrigger extension frame (1) are respectively provided with outrigger folding guide blocks (9) for cooperating with the outrigger folding positioning blocks (18).

6. The leg folding mechanism according to claim 5, characterized in that: The outrigger folding guide block (9) includes a sheet-shaped block body, on which a vertical positioning slot (23) and a horizontal positioning slot (25) for the hinge seat are respectively provided, and a transition guide groove (24) is provided between the horizontal positioning slot (25) and the vertical positioning slot (23).

7. The leg folding mechanism according to claim 1, characterized in that: The connecting mechanism is a locking connecting mechanism (4) for connecting two sets of adjacent vertical baffles. The locking connecting mechanism (4) includes a fixed clamping plate (12), a guide connecting rod (11) is provided on the fixed clamping plate (12), a movable clamping plate (13) is movably provided on the guide connecting rod (11), a locking connecting cavity (14) is formed between the movable clamping plate (13) and the fixed clamping plate (12), and baffle pressing protrusions are respectively provided on the opposite side of the movable clamping plate (13) and the fixed clamping plate (12); a wedge-shaped locking block (15) is also movably provided on the guide connecting rod (11) and the rear side of the movable clamping plate (13), a block positioning pin (16) is fixedly provided on the rod body of the guide connecting rod (11) on the rear side of the wedge-shaped locking block (15), and a support leg connecting part (10) is also provided at the rear end of the guide connecting rod (11).

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