Lifting maintenance platform with high safety

Abstract

The utility model discloses a lifting maintenance platform with high safety, which relates to the technical field of lifting platforms and comprises a cart frame, a lifting brake mechanism is mounted above a push frame of the cart frame, and electric push rods vertically opposite to locking racks are symmetrically arranged on two sides of a back plate of a lifting sliding table. And a locking tooth holder meshed with the locking rack is arranged at the telescopic end of the electric push rod, and a working platform is installed between the two sets of horizontally-opposite lifting sliding tables. According to the lifting maintenance platform, the trolley frame serves as a supporting carrier, under bidirectional lifting braking of the lifting braking mechanism, the working platform is pushed to move in a lifting mode in a bilateral stress mode, stable lifting displacement is conducted on the working platform, and the lifting maintenance platform serves as a maintenance platform; through meshing locking of the locking tooth holder at the telescopic end of the electric push rod and the locking rack, the locking state can be synchronously formed, anti-falling protection work is conducted on the working platform, and the safety usability is better.

Description

Technical Field

[0001] The utility model relates to the field of lifting platforms, in particular to a lifting and maintenance platform with high safety. Background Art

[0002] The lifting platform is a multifunctional mechanical equipment that can be used in various scenarios such as cargo transportation, high-altitude operations, equipment maintenance, etc. It plays an important role in various fields, especially for the daily maintenance of various high-altitude facilities. The lifting platform is indispensable. With the development of the lifting platform, its types are increasing. For example, a lifting maintenance platform disclosed by the China Patent Network (public announcement number CN220684621U) is shown. This type uses a transfer trolley as a pushing platform, and under the lifting brake of the lifting component and the passive locking of the emergency mechanism, it pushes the maintenance guardrail to move stably up and down.

[0003] However, the aforementioned patents and the existing market-proven lifting and maintenance platforms still have some shortcomings: the existing unilateral lifting brake components are used to push the lifting platform up and down. As a maintenance platform, the unilateral load-bearing capacity is relatively simple, and the lifting support stability of the maintenance platform is poor, making it prone to tilting. To address this issue, those skilled in the art have provided a highly secure lifting and maintenance platform to address the problems raised in the above-mentioned background technology. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a lifting and maintenance platform with high safety, which solves the problem of poor lifting stability of the existing lifting and maintenance platform proposed in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-safety lifting and maintenance platform, including a cart frame;

[0006] A lifting brake mechanism is installed above the push frame of the push frame;

[0007] The lifting brake mechanism includes a lifting rail frame symmetrically installed on both sides of the push frame of the cart frame and a brake motor installed in the middle of the push frame of the cart frame. The upper and lower ends of the bracket of the lifting rail frame are symmetrically provided with support seats, and the support of each group of support seats is rotatably connected to a transmission shaft. The output end of the brake motor is provided with a brake shaft that drives the bottom transmission shaft. Pulleys are provided on both sides of the shaft rod of the transmission shaft, and the upper and lower opposite pulleys are connected by a transmission belt. The guide rail of the lifting rail frame is slidably connected to a lifting slide connected to the transmission belt.

[0008] The inner wall of the frame of the lifting track frame is symmetrically provided with a locking rack, and the two sides of the back plate of the lifting slide are symmetrically provided with electric push rods perpendicularly opposite to the locking rack, and the telescopic ends of the electric push rods are provided with locking gear seats meshing with the locking rack;

[0009] A working platform is installed between two horizontally opposite lifting slides.

[0010] As a further technical solution of the present invention: both ends of the shaft of the brake shaft are provided with transmission worms, and the middle part of the shaft of the transmission shaft at the bottom is provided with a transmission worm wheel meshing with the transmission worm.

[0011] As a further technical solution of the present invention: a fixing seat fixedly connected to the transmission belt is symmetrically provided in the middle of the back plate of the lifting slide.

[0012] As a further technical solution of the present invention: track guide wheels that slide along the lifting track frame are symmetrically provided on both sides of the lifting slide.

[0013] As a further technical solution of the present invention: the length of the tooth row of the locking rack is the same as the track height of the lifting track frame.

[0014] As a further technical solution of the present invention: the working platform includes a working box frame and an opening and closing door installed in the middle of the working box frame box body.

[0015] The utility model provides a high-safety lifting and maintenance platform, which has the following beneficial effects compared with the existing technology:

[0016] The lifting and maintenance platform of this design is based on a trolley frame as a supporting carrier. Under the bidirectional lifting and braking of the lifting brake mechanism, the working platform is pushed to lift and move in a bilateral force manner, which ensures the stable lifting and displacement of the working platform as a maintenance platform. After the lifting and displacement, the locking state can be synchronously formed by the engagement and locking of the locking tooth seat and the locking rack at the telescopic end of the electric push rod to prevent the work platform from falling. It has better safety performance and more stable lifting and braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a high-safety lifting and maintenance platform;

[0018] Figure 2 This is a structural diagram of a lifting brake mechanism in a high-safety lifting and maintenance platform;

[0019] Figure 3 It is a high-safety lifting and maintenance platform Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The diagram is a schematic diagram of the meshing of a locking rack and a locking gear seat in a high-safety lifting and maintenance platform.

[0021] In the figure: 1. Trolley frame; 2. Lifting track frame; 3. Push handle; 4. Lifting slide; 41. Track guide wheel; 5. Fixed seat; 6. Transmission belt; 7. Working platform; 71. Working box frame; 72. Opening and closing door; 8. Brake motor; 9. Brake shaft; 10. Support seat; 11. Transmission shaft; 12. Pulley; 13. Transmission worm; 14. Transmission worm wheel; 15. Locking rack; 16. Electric push rod; 17. Locking gear seat. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a technical solution for a lifting and maintenance platform with high safety: a lifting and maintenance platform with high safety, comprising a trolley frame 1, a lifting brake mechanism installed above the push frame of the trolley frame 1, the lifting brake mechanism comprising a lifting rail frame 2 symmetrically installed on both sides of the push frame of the trolley frame 1 and a brake motor 8 installed in the middle of the push frame of the trolley frame 1, the upper and lower ends of the brackets of the lifting rail frame 2 are symmetrically provided with support seats 10, and the support inside of each group of support seats 10 is rotatably connected with a transmission shaft 11, the output end of the brake motor 8 is provided with a brake shaft 9 driving the bottom transmission shaft 11, and the shaft ends of the brake shaft 9 are provided with a transmission worm 13, and the middle part of the shaft of the bottom transmission shaft 11 is provided with a transmission worm gear 14 meshing with the transmission worm 13. By controlling the operation of the brake motor 8, the brake shaft 9 is driven to rotate, and then the transmission worm 13 is driven to rotate, and the meshing transmission of the transmission worm 13 and the transmission worm gear 14 is used to drive the transmission shaft 11 to rotate synchronously as a driving source, driving the corresponding components to lift and lower.

[0024] Pulleys 12 are provided on both sides of the shaft of the transmission shaft 11, and the upper and lower opposite pulleys 12 are connected by a transmission belt 6. The guide rail of the lifting track frame 2 is slidably connected to the lifting slide 4 connected to the transmission belt 6. The middle part of the back plate of the lifting slide 4 is symmetrically provided with a fixed seat 5 fixedly connected to the transmission belt 6. The two sides of the platform of the lifting slide 4 are symmetrically provided with track guide wheels 41 that slide with the lifting track frame 2. When the transmission shaft 11 rotates, it drives the combination of the pulley 12 and the transmission belt 6 to rotate, which serves as the lifting drive source, pushing the lifting slide 4 to slide and lift along the lifting track frame 2, and then driving the working platform 7 to move up and down, and performing lifting and lowering control in the form of bilateral force on its maintenance position to improve its lifting and braking force stability.

[0025] The inner wall of the frame of the lifting track frame 2 is symmetrically provided with a locking rack 15, and the two sides of the back plate of the lifting slide 4 are symmetrically provided with electric push rods 16 perpendicular to the locking rack 15, and the telescopic end of the electric push rod 16 is provided with a locking tooth seat 17 engaged with the locking rack 15. The tooth row length of the locking rack 15 is the same as the track height of the lifting track frame 2. When the inspection height of the working platform 7 is adjusted, the telescopic end of the electric push rod 16 is controlled to extend, and the locking tooth seat 17 is engaged with the locking rack 15 to form a locking state, thereby performing active anti-fall protection on the working platform 7 and improving the lifting and braking stability of the working platform 7.

[0026] A working platform 7 is installed between the two horizontally opposite sets of lifting slides 4. The working platform 7 includes a working box frame 71 and an opening and closing door 72 installed in the middle of the box body of the working box frame 71. By setting the working platform 7 as a combination of the working box frame 71 and the opening and closing door 72, when in use, the opening and closing door 72 is opened and the staff enters the working box frame 71 as a lifting work area.

[0027] The working principle of the present invention is as follows: when the lifting platform is used as a maintenance platform for the staff, the casters of the trolley frame 1 can be used to push it, and the lifting maintenance platform can be pushed to the specified position under the push of the push handle 3. Then, after the staff enters the working platform 7, the brake motor 8 can be controlled to work, driving the brake shaft 9 to rotate, and then driving the combined transmission of the transmission worm 13 and the transmission worm gear 14 to promote the synchronous rotation of the transmission shaft 11. At the same time, the rotation of the transmission shaft 11 drives the combined rotation of the pulley 12 and the transmission belt 6, which serves as a lifting drive source to push the lifting slide 4 to slide along the lifting track frame 2, and then drive the working platform 7 to move up and down, and perform lifting and lowering control on its maintenance position in the form of bilateral force, so that the staff can be stably lifted to the specified maintenance height;

[0028] After the height adjustment of the working platform 7 is completed, the telescopic end of the electric push rod 16 can be controlled to extend, and the locking gear seat 17 can be engaged with the locking rack 15 to form a locked state, thereby actively preventing the working platform 7 from falling, further improving the safe use of the lifting platform.

[0029] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A high-safety lifting and maintenance platform, characterized in that: It includes a cart frame (1); A lifting brake mechanism is installed above the push frame of the push frame (1); The lifting brake mechanism comprises a lifting track frame (2) symmetrically mounted on both sides of the push frame of the trolley frame (1) and a brake motor (8) mounted in the middle of the push frame of the trolley frame (1); the upper and lower ends of the bracket of the lifting track frame (2) are symmetrically provided with support seats (10), and the support of each group of support seats (10) is rotatably connected to a transmission shaft (11); the output end of the brake motor (8) is provided with a brake shaft (9) for driving the bottom transmission shaft (11); pulleys (12) are provided on both sides of the shaft of the transmission shaft (11), and the upper and lower opposite pulleys (12) are connected by a transmission belt (6); the guide rail of the lifting track frame (2) is slidably connected to a lifting slide (4) connected to the transmission belt (6); The inner wall of the frame of the lifting track frame (2) is symmetrically provided with a locking rack (15), and both sides of the back plate of the lifting slide (4) are symmetrically provided with electric push rods (16) vertically opposite to the locking rack (15), and the telescopic end of the electric push rod (16) is provided with a locking tooth seat (17) meshing with the locking rack (15); A working platform (7) is installed between two horizontally opposite groups of lifting slides (4).

2. A high-safety lifting and maintenance platform according to claim 1, characterized in that: Both ends of the shaft of the brake shaft (9) are provided with a transmission worm (13), and the middle part of the shaft of the transmission shaft (11) at the bottom is provided with a transmission worm wheel (14) meshing with the transmission worm (13).

3. The high-safety lifting and maintenance platform according to claim 1 is characterized in that: A fixing seat (5) fixedly connected to a transmission belt (6) is symmetrically provided in the middle of the back plate of the lifting slide (4).

4. The high-safety lifting and maintenance platform according to claim 1 is characterized in that: Track guide wheels (41) that guide and slide with the lifting track frame (2) are symmetrically provided on both sides of the platform of the lifting slide (4).

5. The high-safety lifting and maintenance platform according to claim 1, characterized in that: The tooth row length of the locking rack (15) is the same as the track height of the lifting track frame (2).

6. The high-safety lifting and maintenance platform according to claim 1, characterized in that: The working platform (7) comprises a working box frame (71) and an opening and closing door (72) installed in the middle of a box body of the working box frame (71).

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