Safety protection device for household lifting platform

Abstract

The utility model discloses a safety protection device for a household lifting platform, which belongs to the technical field of lifting platforms and comprises a lifting platform, two first vertical rods are arranged on the lifting platform, two second vertical rods are arranged on the lifting platform, screw rods are rotatably arranged in the second vertical rods, the side surfaces of the screw rods are in threaded connection with connecting nut plates, and the connecting nut plates are in threaded connection with the lifting platform. The side face of the connecting nut plate is in lap joint with a penetrating hole. According to the safety protection device for the household lifting platform, a lead screw, a connecting nut plate, a first bevel gear, a second bevel gear and a protection rod are arranged, and under the mutual cooperation of the lead screw, the connecting nut plate, the first bevel gear, the second bevel gear and the protection rod; the situation that a plurality of locking screw rods are operated to be sequentially rotated into locking holes and the lifting protection rod is fixed is further avoided, the height adjustment of the protection rod can be rapidly achieved in the rotating process of the screw rod, not only is long time not wasted, but also the whole operation process is simple, convenient and rapid.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting platforms, in particular to a safety protection device for a household lifting platform. Background Art

[0002] The lifting platform is a multifunctional lifting and loading and unloading mechanical equipment, which can be divided into fixed and mobile types. The mobile type is divided into straight arm type, curved arm type, scissors type, mast type, aluminum alloy lifting platform, and the fixed type is scissors type, guide rail lifting platform, chain lifting platform, loading and unloading platform and attached electric construction platform.

[0003] When workers use a lifting platform for operation, they usually first adjust the height of the lifting protection bar to meet the safety requirements of different heights, and then operate multiple locking screws to turn them into the locking holes in turn to complete the fixation of the lifting protection bar, which makes the entire operation process more troublesome and wastes a long time. Therefore, a household lifting platform safety protection device is needed to improve the above problem. Utility Model Content

[0004] In order to overcome the above defects, the utility model provides a safety protection device for a household lifting platform, which solves the problem that multiple locking screws need to be operated to be successively turned into locking holes to complete the fixation of the lifting protection rod, thereby making the entire operation process more troublesome and wasting a long time.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a household lifting platform safety protection device, comprising a lifting platform, two first vertical poles are arranged on the lifting platform, two second vertical poles are arranged on the lifting platform, a screw rod is rotatably arranged in the second vertical pole, a connecting nut plate is threadedly connected to the side surface of the screw rod, a through hole is overlapped on the side surface of the connecting nut plate, the through hole is opened on the front surface of the second vertical pole, a protection rod is arranged on the front surface of the connecting nut plate, a first bevel gear is arranged at the bottom end of the screw rod, a second bevel gear is meshed with the first bevel gear, a rotating assembly is arranged on the side surface of the second vertical pole, the rotating assembly is connected to the second bevel gear, and the same protection assembly is arranged on the first vertical pole and the second vertical pole.

[0006] As a further solution of the utility model: the rotating assembly includes a positioning bearing, the positioning bearing is arranged on the side of the second vertical rod, and a movable rod is arranged in the positioning bearing.

[0007] As a further solution of the utility model: one end of the movable rod is connected to the second bevel gear, the other end of the movable rod is provided with a rotating disk, and a fixing rod is provided on the side of the rotating disk.

[0008] As a further solution of the utility model: the protection component includes four columns, the columns are respectively arranged on the first pole and the second pole, and the columns are provided with wire mesh plates.

[0009] As a further solution of the utility model: a protective door is hinged on the front side of the first upright pole, and a handle is provided on the front side of the protective door.

[0010] As a further solution of the utility model: a sliding hole is opened on the back side of the first vertical rod, and the sliding hole is slidably connected to the protective rod.

[0011] As a further solution of the utility model: a lift is provided under the lifting platform, and the first vertical pole and the second vertical pole are connected by a reinforcing rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The household lifting platform safety protection device further avoids the situation where multiple locking screws are sequentially rotated into the locking holes to fix the lifting protection rod by arranging a screw rod, a connecting nut plate, a first bevel gear, a second bevel gear and a protection rod. With the mutual cooperation of the screw rod, the connecting nut plate, the first bevel gear, the second bevel gear and the protection rod, the height adjustment of the protection rod can be quickly achieved during the rotation of the screw rod, which not only avoids wasting a long time, but also makes the whole operation process simple, convenient and fast.

[0014] 2. The safety protection device of the household lifting platform is equipped with columns and wire mesh plates. With the cooperation of the columns and the wire mesh plates, falling objects fall on the wire mesh plates for buffering, thereby protecting the upper end of the operator and reducing damage to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the first upright pole of the utility model in a rear-view stereoscopic manner;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the second upright pole of the utility model;

[0018] In the figure: 1. lifting platform; 2. first vertical pole; 3. handle; 4. protective door; 5. protective assembly; 51. column; 52. wire mesh plate; 6. rotating assembly; 61. positioning bearing; 62. movable rod; 63. turntable; 64. fixed rod; 7. perforation; 8. connecting nut plate; 9. screw rod; 10. protective rod; 11. second vertical pole; 12. reinforcement rod; 13. elevator; 14. first bevel gear; 15. second bevel gear; 16. sliding hole. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] like Figure 1-3 As shown, the utility model provides a technical solution: a household lifting platform safety protection device, comprising a lifting platform 1, two first vertical rods 2 are arranged on the lifting platform 1, two second vertical rods 11 are arranged on the lifting platform 1, a screw rod 9 is rotatably arranged in the second vertical rod 11, and a connecting nut plate 8 is threadedly connected to the side of the screw rod 9. By setting the screw rod 9 and the connecting nut plate 8, the screw rod 9 plays a supporting and limiting role on the connecting nut plate 8, so that the connecting nut plate 8 can move up and down smoothly on the surface of the screw rod 9, and the side of the connecting nut plate 8 is overlapped with a through hole 7, and the through hole 7 is opened on the front of the second vertical rod 11. A protective rod 10 is arranged on the front of the connecting nut plate 8, and a first bevel gear 14 is arranged at the bottom end of the screw rod 9, and the first bevel gear 14 is meshed with a second bevel gear 15. By setting the first bevel gear 14 and the second bevel gear 15, under the mutual cooperation of the first bevel gear 14 and the second bevel gear 15, the vertical rotation force of the movable rod 62 can be smoothly converted into the horizontal rotation force of the screw rod 9;

[0021] A rotating assembly 6 is provided on the side of the second vertical rod 11. The rotating assembly 6 includes a positioning bearing 61. The positioning bearing 61 is provided on the side of the second vertical rod 11. A movable rod 62 is provided in the positioning bearing 61. By providing the positioning bearing 61 and the movable rod 62, the positioning bearing 61 supports and limits the movable rod 62, thereby ensuring that the movable rod 62 will not shake randomly during the rotation in the positioning bearing 61. One end of the movable rod 62 is connected to the second bevel gear 15, and a rotating disk 63 is provided on the other end of the movable rod 62. A fixed rod 64 is provided on the side of the rotating disk 63. By providing the rotating disk 63 and the fixed rod 64, the rotating disk 63 supports and limits the fixed rod 64, thereby making the fixed rod 64 rotate smoothly. The rotating assembly 6 is connected to the second bevel gear 15;

[0022] The first vertical pole 2 and the second vertical pole 11 are both provided with the same protection component 5, and the protection component 5 includes four columns 51, and the columns 51 are respectively arranged on the first vertical pole 2 and the second vertical pole 11, and a wire mesh plate 52 is arranged on the column 51. By arranging the columns 51 and the wire mesh plate 52, the columns 51 support and limit the wire mesh plate 52, so that the wire mesh plate 52 can stably protect the upper part of the staff on the lifting platform 1. A protection door 4 is hinged on the front side of the first vertical pole 2, and a handle 3 is provided on the front side of the protection door 4. By arranging the handle 3, the handle 3 makes it more convenient for the staff to pull the protection door 4. A lift 13 is provided under the lifting platform 1, and a sliding hole 16 is opened on the back side of the first vertical pole 2, and the sliding hole 16 is slidably connected to the protection pole 10, and the first vertical pole 2 and the second vertical pole 11 are both connected by the reinforcement rod 12.

[0023] The working principle of the utility model is:

[0024] When the height of the protection rod 10 needs to be adjusted, the fixed rod 64 is first controlled to rotate, so that the fixed rod 64 drives the rotating disk 63 and the movable rod 62 to rotate, and the movable rod 62 drives the second bevel gear 15 to rotate. Under the meshing action of the first bevel gear 14 and the second bevel gear 15, the rotating second bevel gear 15 drives the first bevel gear 14 to rotate, and the rotating first bevel gear 14 drives the screw rod 9 to rotate;

[0025] During the rotation of the screw rod 9, the connecting nut plate 8 is driven to move up and down, so that the connecting nut plate 8 drives the protective rod 10 to move to a suitable height. Finally, with the cooperation of the first vertical rod 2, the second vertical rod 11, the reinforcement rod 12 and the protective door 4, the staff standing on the lifting platform 1 are protected from all sides.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A household lifting platform safety protection device, comprising a lifting platform (1), characterized in that: The lifting platform (1) is provided with two first vertical poles (2), and the lifting platform (1) is provided with two second vertical poles (11). A screw rod (9) is rotatably provided inside the second vertical pole (11). The side surface of the screw rod (9) is threadedly connected with a connecting nut plate (8). The side surface of the connecting nut plate (8) is overlapped with a through hole (7). The through hole (7) is opened on the front surface of the second vertical pole (11). A protective rod (10) is provided on the front surface of the connecting nut plate (8). The bottom end of the screw rod (9) is provided with a first bevel gear (14). The first bevel gear (14) is meshed with a second bevel gear (15). A rotating assembly (6) is provided on the side surface of the second vertical pole (11). The rotating assembly (6) is connected to the second bevel gear (15). The first vertical pole (2) and the second vertical pole (11) are both provided with the same protective assembly (5).

2. A household lifting platform safety protection device according to claim 1, characterized in that: The rotating assembly (6) comprises a positioning bearing (61), the positioning bearing (61) is arranged on the side of the second vertical rod (11), and a movable rod (62) is arranged inside the positioning bearing (61).

3. A household lifting platform safety protection device according to claim 2, characterized in that: One end of the movable rod (62) is connected to the second bevel gear (15), and the other end of the movable rod (62) is provided with a rotating disk (63), and a fixing rod (64) is provided on the side of the rotating disk (63).

4. A household lifting platform safety protection device according to claim 1, characterized in that: The protection assembly (5) comprises four columns (51), wherein the columns (51) are respectively arranged on the first upright pole (2) and the second upright pole (11), and the columns (51) are provided with steel wire mesh plates (52).

5. A household lifting platform safety protection device according to claim 1, characterized in that: A protective door (4) is hinged on the front of the first upright pole (2), and a handle (3) is provided on the front of the protective door (4).

6. A household lifting platform safety protection device according to claim 1, characterized in that: A sliding hole (16) is provided on the back side of the first vertical rod (2), and the sliding hole (16) is slidably connected to the protective rod (10).

7. A household lifting platform safety protection device according to claim 1, characterized in that: A lift (13) is provided under the lifting platform (1), and the first vertical pole (2) and the second vertical pole (11) are connected via a reinforcing rod (12).

Images