Fixing mechanism for supporting legs of lifting platform

Abstract

The utility model relates to the technical field of lifting platforms, and particularly discloses a fixing mechanism of a lifting platform supporting leg, lug plates are arranged on the side wall of a lifting platform base, one end of the supporting leg is located between the two lug plates and is connected with the lug plates through a rotating shaft, a chuck is fixed at the upper end of each lug plate, and the other end of the supporting leg is connected with the rotating shaft. The rotating shaft is fixedly connected with the supporting legs, the upper half part of the rotating shaft is provided with an external thread, the outer side of the rotating shaft is sleeved with a lock cap which slides vertically, the lock cap is matched with the chuck to fix the supporting legs, and the lock cap is fixed through a compression nut which is in threaded fit with the rotating shaft; the positions of the supporting legs after being folded or unfolded are fixed through the matching of the lock caps and the chucks, the stability of the supporting legs during storage or use is ensured, the problem that the supporting legs are rotated to be unfolded when the lifting platform moves is solved, the convenience of movement of the lifting platform is ensured, the supporting legs are fixed after being unfolded, and the supporting legs are fixed. And reliability and safety of supporting can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to a fixing mechanism for supporting legs of a lifting platform. Background Art

[0002] With the development of social science and technology, lifting platforms have been popularized in every corner of social life and are used more and more widely. Whether it is construction, civil engineering, or people's daily life, lifting machinery is indispensable. Lifting platform is a multifunctional lifting and loading and unloading mechanical equipment. In addition to being used for cargo transportation at different heights, it is widely used in high-altitude installation, maintenance and other operations.

[0003] The support legs of the lifting platform are used to support the base when in use, thereby improving the overall stability. For example, patent CN212356419U discloses a fixed hydraulic lift that is easy to move. The support arm 5 is connected to the base through a rotating shaft. When not in use, the support arm is stored on both sides of the base. Most of the existing support arms lack a fixing device, especially when the lifting platform is moving, the support arm is easy to rotate, thereby affecting the normal movement of the lifting platform. Utility Model Content

[0004] The utility model is aimed at the above-mentioned deficiencies in the prior art and provides a fixing mechanism for the support legs of a lifting platform. The position of the support legs after storage or opening is fixed by the cooperation of a locking cap and a chuck, thereby ensuring the stability of the support legs when stored or in use, avoiding the problem of the support legs rotating and opening when the lifting platform is moving, ensuring the convenience of moving the lifting platform, and the support legs are fixed after opening, which can ensure the reliability and safety of the support.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fixing mechanism for a lifting platform support leg, wherein an ear plate is provided on the side wall of the lifting platform base, one end of the support leg is located between two ear plates and connected to the ear plate through a rotating shaft, a chuck is fixed to the upper end of the ear plate, the rotating shaft and the support leg are fixedly connected, an external thread is provided on the upper half of the rotating shaft, a vertically sliding locking cap is sleeved on the outer side of the rotating shaft, the locking cap cooperates with the chuck to fix the support leg, and the locking cap is fixed by a clamping nut that cooperates with the rotating shaft thread.

[0007] Preferably, a first card slot and a second card slot are provided on the side wall of the chuck, the first card slot corresponds to the position of the support leg after it is opened, and the second card slot corresponds to the position of the support leg after it is stored, the locking cap includes an inner cylinder that slides with the rotating shaft, an outer cylinder is sleeved on the outer side of the inner cylinder, the upper ends of the inner cylinder and the outer cylinder are connected by a cover plate, and a locking block that cooperates with the first card slot or the second card slot is provided on the side wall of the outer cylinder.

[0008] Preferably, a guide groove is vertically provided on the side wall of the rotating shaft, and a guide block cooperating with the guide groove is provided on the inner wall of the inner cylinder.

[0009] Preferably, a limiting ring is provided at the upper end of the rotating shaft.

[0010] Preferably, a spring is provided between the inner cylinder and the outer cylinder, and two ends of the spring are respectively connected to the cover plate and the chuck.

[0011] Preferably, a rotating rod is provided on the side wall of the clamping nut.

[0012] Preferably, the rotating shaft and the supporting legs are fixed by welding.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model fixes the position of the support legs after storage or opening through the cooperation of the lock cap and the chuck, thereby ensuring the stability of the support legs when stored or in use, avoiding the problem of the support legs rotating and opening when the lifting platform is moving, ensuring the convenience of movement of the lifting platform, and the support legs are fixed after opening, which can ensure the reliability and safety of the support.

[0015] 2. The utility model provides a spring between the lock cap and the chuck, which can improve the convenience of opening the lock cap, making it more convenient and quick to use, and at the same time, the spring can prevent the compression nut from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure when the supporting legs are opened;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A;

[0018] Figure 3 It is a cross-sectional view of the connection between the supporting leg and the ear plate;

[0019] Figure 4 is a schematic diagram of the structure of the ear plate;

[0020] Figure 5 It is a schematic diagram of the structure of the lock cap;

[0021] Figure 6 is a structural schematic diagram of the rotating shaft;

[0022] Figure 7 It is a structural schematic diagram of the compression nut;

[0023] In the figure: 1-base; 2-support leg; 3-ear plate; 4-chuck; 401-first slot; 402-second slot; 5-locking cap; 501-locking block; 502-outer cylinder; 503-cover plate; 504-inner cylinder; 505-guide block; 6-pressing nut; 601-rotating rod; 7-rotating shaft; 701-limiting ring; 702-guide groove; 8-spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-3 As shown, a fixing mechanism of a lifting platform support leg 2, a lug plate 3 is provided on the side wall of the lifting platform base 1, one end of the support leg 2 is located between the two lug plates 3 and connected to the lug plate 3 through a rotating shaft 7, a chuck 4 is fixed to the upper end of the lug plate 3, and the rotating shaft 7 is welded and fixed to the support leg 2, as shown in FIG. Figure 6 As shown, the upper half of the rotating shaft 7 is provided with an external thread, and the outer side of the rotating shaft 7 is sleeved with a vertically sliding locking cap 5, which cooperates with the chuck 4 to fix the supporting leg 2, and the locking cap 5 is fixed by a clamping nut 6 that cooperates with the rotating shaft 7 thread.

[0026] like Figure 4 As shown, a first card slot 401 and a second card slot 402 are provided on the side wall of the chuck 4. The first card slot 401 corresponds to the position of the support leg 2 after it is opened, and the second card slot 402 corresponds to the position of the support leg 2 after it is stored. Figure 5 As shown, the lock cap 5 includes an inner cylinder 504 that is slidably matched with the rotating shaft 7, an outer cylinder 502 is sleeved on the outer side of the inner cylinder 504, the upper ends of the inner cylinder 504 and the outer cylinder 502 are connected through a cover plate 503, and a locking block 501 that is matched with the first card slot 401 or the second card slot 402 is provided on the side wall of the outer cylinder 502. When the support leg 2 is stored, the locking block 501 is matched with the second card slot 402 to fix the support leg 2; when the support leg 2 is opened 90°, the locking block 501 is matched with the first card slot 401 to fix the support leg 2.

[0027] A guide groove 702 is vertically provided on the side wall of the rotating shaft 7, and a guide block 505 cooperating with the guide groove 702 is provided on the inner wall of the inner cylinder 504. The guide block 505 slides along the guide groove 702 to ensure that the lock cap 5 can only move vertically, so that there is no relative rotation between the lock cap 5 and the rotating shaft 7.

[0028] In order to increase the convenience of opening the lock cap 5, a spring 8 is provided between the inner tube 504 and the outer tube 502, and the two ends of the spring 8 are respectively connected to the cover plate 503 and the chuck 4. When the compression nut 6 is rotated, the lock cap 5 can gradually rise and automatically unlock.

[0029] For ease of operation, Figure 7 As shown, a rotating rod 601 is provided on the side wall of the clamping nut 6 to facilitate manual rotation.

[0030] A limiting ring 701 is provided at the upper end of the rotating shaft 7 to prevent the locking cap 5 from falling off the rotating shaft 7 .

[0031] When the lock cap 5 needs to be opened, the clamping nut 6 is rotated upwards, and the lock cap 5 is opened upwards under the action of the spring 8, and the locking block 501 is separated from the slot. At this time, the support leg 2 can rotate. When the support leg 2 is opened or stored, the clamping nut 6 is turned downward, and the clamping nut 6 presses the lock cap 5, so that the locking block 501 cooperates with the slot, thereby fixing the support leg 2.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A fixing mechanism for a support leg of a lifting platform, wherein a lug plate is provided on the side wall of the lifting platform base, one end of the support leg is located between two lug plates and connected to the lug plate through a rotating shaft, characterized in that: A chuck is fixed at the upper end of the ear plate, the rotating shaft is fixedly connected to the supporting leg, the upper half of the rotating shaft is provided with an external thread, and a vertically sliding locking cap is sleeved on the outer side of the rotating shaft. The locking cap cooperates with the chuck to fix the supporting leg, and the locking cap is fixed by a clamping nut that cooperates with the rotating shaft thread.

2. A fixing mechanism for a lifting platform support leg according to claim 1, characterized in that: The side wall of the chuck is provided with a first slot and a second slot, the first slot corresponds to the position of the support leg after it is opened, and the second slot corresponds to the position of the support leg after it is stored, the locking cap includes an inner cylinder that slides with the rotating shaft, an outer cylinder is sleeved on the outer side of the inner cylinder, the upper ends of the inner cylinder and the outer cylinder are connected by a cover plate, and a locking block that cooperates with the first slot or the second slot is provided on the side wall of the outer cylinder.

3. A fixing mechanism for a lifting platform support leg according to claim 2, characterized in that: A guide groove is vertically arranged on the side wall of the rotating shaft, and a guide block matched with the guide groove is arranged on the inner wall of the inner cylinder.

4. The fixing mechanism of the supporting legs of a lifting platform according to claim 1, characterized in that: A limiting ring is arranged on the upper end of the rotating shaft.

5. The fixing mechanism of the supporting legs of a lifting platform according to claim 2, characterized in that: A spring is arranged between the inner cylinder and the outer cylinder, and two ends of the spring are respectively connected to the cover plate and the chuck.

6. The fixing mechanism of the supporting legs of a lifting platform according to claim 1, characterized in that: A rotating rod is arranged on the side wall of the clamping nut.

7. The fixing mechanism of the supporting legs of a lifting platform according to claim 1, characterized in that: The rotating shaft and the supporting legs are fixed by welding.

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