Expansion type working platform for high-altitude operation

Abstract

The utility model relates to an aerial work expansion type working platform which comprises a main platform and a side platform, and the side platform is located on the side face of the main platform and hinged to the main platform. An overturning guardrail is arranged on the side platform; a limiting structure is arranged between the turnover guardrail and the side platform and used for limiting rotation of the turnover guardrail in the turnover state of the turnover guardrail. The high-altitude operation expansion type working platform has the advantages that the limiting structure can be arranged between the overturning guardrail and the side platform, the distance between the overturning guardrail and the side platform is short, the range is small, the limiting structure and the side platform are not prone to being touched by the rotating arm, the limiting structure is arranged at the outer corner, the probability of personnel passing is low, the probability of misoperation is low, and the working efficiency is improved. And the overall safety is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an extended working platform for aerial work. Background Art

[0002] Existing arch work platforms offer limited standing space for construction workers, restricting their working area and increasing the risk of work. When the construction area is large, the position of the construction equipment and work platform must be frequently adjusted to complete the work. This increases the difficulty of operation, prolongs work hours, and reduces work efficiency.

[0003] Prior art, such as Chinese Utility Model Patent Publication No. CN208234502U, discloses an arch work platform and an arch work vehicle, comprising a main platform and a flip platform hinged to the side of the main platform that can be flipped and folded relative to the main platform. Furthermore, the platform includes a flip guardrail disposed on the flip platform that can be flipped and folded relative to the flip platform, and a connector that flexibly connects the main platform and the flip platform and is used to suspend the flip platform. However, the flip guardrail of the arch work platform forms a limit structure connected to the main platform. The limit structure has a long connection distance, which makes it easily touched by a rotating arm or misoperated by workers, posing a significant safety risk. Utility Model Content

[0004] One purpose of the present application is to provide an expandable work platform for aerial work, with a short connection distance of the limiting structure and high safety.

[0005] The technical solution adopted in this application is: an expandable work platform for aerial work, including a main platform and a side platform. The side platform is located on the side of the main platform and is hinged to the main platform, and the side platform can be flipped and folded relative to the main platform; a flip guardrail is provided on the side platform, and the flip guardrail can be flipped and folded relative to the side platform; a limiting structure is provided between the flip guardrail and the side platform, and the limiting structure is used to limit the rotation of the flip guardrail when the flip guardrail is in a flipped state.

[0006] Compared with the existing technology, the advantage of this application is that the limiting structure can be set between the flip guardrail and the side platform. The distance between the two is short and the range is small, which is not easily touched by the rotating arm. Moreover, the limiting structure is in the outer corner, and the probability of people passing through is low, which also reduces the probability of misoperation and improves the overall safety.

[0007] In some embodiments of the present application, the flip guardrail includes a railing, and the limiting structure is located between the railing and the side platform; the limiting structure includes a first pin and a second pin, the first pin and the second pin are located on the side platform, and a waist hole and a fixing groove are provided on the railing, the fixing groove is located at the bottom of the railing, the length direction of the waist hole is the same as the concave direction of the fixing groove, and the first pin is passed through the waist hole; when the railing is flipped and fixed, the second pin is located in the fixing groove, and the distance from the first pin to the bottom of the waist hole is greater than or equal to the distance from the second pin to the outside of the fixing groove.

[0008] In some embodiments of the present application, two railings are provided, and the railings are located on both sides of the side platform away from one end of the main platform; the flip guardrail includes a connecting rod, and both ends of the connecting rod are respectively connected to the railings on both sides.

[0009] Furthermore, a protective member is provided between the railing and the main platform; the protective member is a protective chain, spring hooks are provided at both ends of the protective chain, a first ear plate is provided on both sides of the main platform, a second ear plate is provided on the railing, and the spring hooks at both ends are respectively buckled with the first ear plate and the second ear plate.

[0010] Furthermore, two protection chains are provided on each side, the first lug plate is located at the upper and middle portion of the main platform, and the second lug plate is located at the upper and middle portion of the railing.

[0011] In some embodiments of the present application, a load-bearing connection member is provided between the main platform and the side platform.

[0012] Furthermore, the load-bearing connecting member is a load-bearing chain, and the two ends of the load-bearing chain are respectively connected to the upper end of the main platform and the outer end of the side platform; both ends of the load-bearing chain are provided with shackles, and a third ear plate is provided on both sides of the main platform, and a fourth ear plate is provided on the side platform, and the shackles at both ends are respectively connected to the third ear plate and the fourth ear plate.

[0013] Furthermore, a third pin is provided on the side platform, and when the side platform is folded, the third pin is connected to the first ear plate.

[0014] In some embodiments of the present application, mounting plates are provided on both sides of the side platform, and limiting grooves are opened on the mounting plates. The lower end of the railing is arranged in the limiting groove, and the part of the first pin shaft and the part of the second pin shaft are both arranged in the limiting groove.

[0015] In some embodiments of the present application, a limiting plate is provided on the main platform, and when the side platform is flipped into place, the bottom of the side platform fits into place with the top of the limiting plate.

[0016] In some embodiments of the present application, two side platforms are provided; the two side platforms are arranged symmetrically relative to the main platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of embodiment 1 of the present utility model Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of embodiment 1 of the present utility model Figure 2 ;

[0019] Figure 3 This is a schematic structural diagram of the flip guardrail of Example 1 of the present utility model;

[0020] Figure 4 is a cross-sectional view of the connection between the guardrail and the mounting plate of Example 1 of the present utility model;

[0021] Figure 5 yes Figure 1 A magnified view of part A in FIG;

[0022] Figure 6 yes Figure 1 A magnified view of part B in FIG;

[0023] Figure 7 yes Figure 1 Enlarged view of part C in ;

[0024] Figure 8 It is a cross-sectional view of the joint between the limiting plate and the side platform of Example 1 of the present utility model.

[0025] In the figure: 1. Main platform; 2. Side platform; 3. Flip guardrail; 4. Handrail; 5. Waist hole; 6. Fixing slot; 7. First pin; 8. Second pin; 9. Connecting rod; 10. Protective chain; 11. Spring buckle; 12. First ear plate; 13. Second ear plate; 14. Load-bearing chain; 15. Shackle; 16. Third ear plate; 17. Fourth ear plate; 18. Third pin; 19. Mounting plate; 20. Limiting slot; 21. Limiting plate. DETAILED DESCRIPTION

[0026] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0027] Example 1:

[0028] This embodiment provides an extended working platform for aerial work, such as Figures 1-4As shown, it includes a main platform 1 and a side platform 2. The side platform 2 is located on the side of the main platform 1 and is hinged to the main platform 1. The side platform 2 can be flipped and folded relative to the main platform 1. A flip guardrail 3 is provided on the side platform 2. The flip guardrail 3 can be flipped and folded relative to the side platform 2. A limiting structure is provided between the flip guardrail 3 and the side platform 2. The limiting structure is used to limit the rotation of the flip guardrail 3 when the flip guardrail 3 is in a flipped state.

[0029] The traditional flip guardrail 3 is limited between the flip guardrail 3 and the main platform 1. The distance between the two is long and the range is large. The limiter is easily hit by the rotating arm during work, causing the risk of the side platform 2 losing its limit, and the safety risk is high. The limit structure can be set between the flip guardrail 3 and the side platform 2. The distance between the two is short and the range is small, and it is not easy to be touched by the rotating arm. The limit structure is in the outer corner, and the probability of people passing through is low, which also makes the probability of misoperation low and the overall safety is higher.

[0030] In order to ensure the reliability of the limiting structure, the flip guardrail 3 includes a railing 4, and the limiting structure is located between the railing 4 and the side platform 2; the limiting structure includes a first pin shaft 7 and a second pin shaft 8, and the first pin shaft 7 and the second pin shaft 8 are located on the side platform 2. The railing 4 is provided with a waist hole 5 and a fixing groove 6, and the fixing groove 6 is located at the bottom of the railing 4. The length direction of the waist hole 5 is the same as the concave direction of the fixing groove 6, and the first pin shaft 7 is passed through the waist hole 5; when the railing 4 is flipped and fixed, the second pin shaft 8 is located in the fixing groove 6, and the distance from the first pin shaft 7 to the bottom of the waist hole 5 is greater than or equal to the distance from the second pin shaft 8 to the outside of the fixing groove 6. The first pin 7 cooperates with the waist hole 5, so that the railing 4 can only move along the waist hole 5; the second pin 8 can cooperate with the fixing slot 6, so that the railing 4 cannot rotate freely; the direction of the waist hole 5 and the fixing slot 6 are the same, ensuring that the railing 4 can move along the direction of the waist hole 5; the fixing slot 6 is located at the bottom of the railing 4, which is convenient for the second pin 8 to be inserted under the action of gravity; when the flip guardrail 3 is flipped, the railing 4 is rotated until the fixing slot 6 is located above the second pin 8, and the fixing slot 6 is inserted into the second pin 8. Under the action of gravity of the railing 4, the second pin 8 will remain in the fixing slot 6, so that the railing 4 cannot rotate, thereby realizing flipping and fixing; when the flip guardrail 3 is folded, the railing 4 is manually lifted up so that the second pin 8 is disengaged from the fixing slot 6. At this time, the railing 4 can rotate around the first pin 7, thereby realizing folding; the flipping and folding of the flip guardrail 3 is simple and convenient.

[0031] To ensure the secure attachment of the tilt guardrail 3, two railings 4 are provided. These railings 4 are located on either side of the side platform 2 at the end away from the main platform 1. The tilt guardrail 3 includes a connecting rod 9, each end of which connects to the railings 4 on either side. The two railings 4 ensure secure attachment of both ends of the tilt guardrail 3, providing increased safety. The connecting rod 9 connects the railings 4 on both sides, enhancing the overall structural strength and also providing front-end protection.

[0032] In order to improve the protection, a protective piece is provided between the railing 4 and the main platform 1, and the protective piece is used to protect both sides of the side platform 2; Figure 5 As shown, the protective element is a protective chain 10, with spring hooks 11 at both ends of the protective chain 10. First lugs 12 are provided on both sides of the main platform 1, and second lugs 13 are provided on the railing 4. The spring hooks 11 at both ends are respectively engaged with the first lug 12 and the second lug 13. The protective element is a protective chain 10, which is easy to store after folding. The spring hooks 11 cooperate with the first lug 12 and the second lug 13, making the protective chain 10 easy to assemble and disassemble.

[0033] To improve protection, two protection chains 10 are provided on each side. The first lug plate 12 is located at the upper and middle portions of the main platform 1, and the second lug plate 13 is located at the upper and middle portions of the railing 4. Upper and middle protection chains 10 are provided on both sides of the side platform 2, ensuring that the upper and middle portions of each side are protected by the protection chains 10, improving safety.

[0034] In order to improve safety, a load-bearing connector is provided between the main platform 1 and the side platform 2 , and the load-bearing connector is used to bear the weight of the side platform 2 and the weight of the heavy objects on the side platform 2 .

[0035] In order to ensure the reliability of the load-bearing connection, the load-bearing connection is a load-bearing chain 14, and the two ends of the load-bearing chain 14 are respectively connected to the upper end of the main platform 1 and the outer end of the side platform 2; Figure 6 As shown, shackles 15 are provided at both ends of the load-bearing chain 14. Third lugs 16 are provided on both sides of the main platform 1, and fourth lugs 17 are provided on the side platform 2. The shackles 15 at both ends are respectively connected to the third and fourth lugs 16, 17. The load-bearing connecting member is the load-bearing chain 14, which is easy to store after folding. The shackles 15 cooperate with the third and fourth lugs 16, 17, making the load-bearing chain 14 easy to install and remove.

[0036] In order to fix it securely after folding, Figure 7 As shown, the side platform 2 is provided with a third pin 18, which is connected to the first lug 12 when the side platform 2 is folded. After folding, the third pin 18 can be inserted into the first lug 12, so that the first lug 12 is connected to the mounting plate 19, thereby securing the side platform 2 after folding.

[0037] To ensure secure installation of the railing 4, mounting plates 19 are provided on both sides of the side platform 2. Limiting slots 20 are defined in the mounting plates 19. The lower end of the railing 4 is positioned within the limiting slots 20, and portions of the first pin 7, the second pin 8, and the third pin 18 are all positioned within the limiting slots 20. The thickness of the limiting slots 20 matches the thickness of the railing 4, ensuring that the railing 4 can only rotate within the limiting slots 20 and cannot move to the sides. When the first lug 12 is connected to the third pin 18, the first lug 12 extends into the limiting slots 20, improving safety.

[0038] To improve security, such as Figure 8 As shown, the main platform 1 is provided with a limit plate 21. When the side platform 2 is flipped into position, the bottom of the side platform 2 abuts against the top of the limit plate 21. The design of the limit plate 21 limits the maximum flip angle of the side platform 2 and also provides safety protection in the event of a breakage of the load-bearing chain 14, thereby improving overall safety. In this embodiment, when the side platform 2 is in a horizontal position, the limit plate 21 abuts against the side platform 2.

[0039] In order to expand the range of activities, two side platforms 2 are provided; the two side platforms 2 are arranged symmetrically relative to the main platform 1.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An expandable working platform for aerial work, characterized in that: The utility model comprises a main platform (1) and a side platform (2), wherein the side platform (2) is located on the side of the main platform (1) and is hinged to the main platform (1), and the side platform (2) can be flipped and folded relative to the main platform (1); a flip guardrail (3) is provided on the side platform (2), and the flip guardrail (3) can be flipped and folded relative to the side platform (2); a limiting structure is provided between the flip guardrail (3) and the side platform (2), and the limiting structure is used to limit the rotation of the flip guardrail (3) when the flip guardrail (3) is in a flipped state; the flip guardrail (3) comprises a railing (4), and the limiting structure is located between the railing (4) and the side platform (2); a limiting plate (21) is provided on the main platform (1), and when the side platform (2) is flipped into place, the bottom of the side platform (2) is in contact with the top of the limiting plate (21).

2. The expandable aerial work platform according to claim 1, characterized in that: The limiting structure comprises a first pin shaft (7) and a second pin shaft (8), the first pin shaft (7) and the second pin shaft (8) are located on the side platform (2), a waist hole (5) and a fixing groove (6) are provided on the handrail (4), the fixing groove (6) is located at the bottom of the handrail (4), the length direction of the waist hole (5) is the same as the concave direction of the fixing groove (6), and the first pin shaft (7) is passed through the waist hole (5); when the handrail (4) is flipped and fixed, the second pin shaft (8) is located in the fixing groove (6), and the distance from the first pin shaft (7) to the bottom of the waist hole (5) is greater than or equal to the distance from the second pin shaft (8) to the outside of the fixing groove (6).

3. The expandable aerial work platform according to claim 2, characterized in that: Two railings (4) are provided, and the railings (4) are located on both sides of the side platform (2) away from one end of the main platform (1); the flip guardrail (3) includes a connecting rod (9), and the two ends of the connecting rod (9) are respectively connected to the railings (4) on both sides.

4. The expandable aerial work platform according to claim 3, characterized in that: A protective member is provided between the railing (4) and the main platform (1); the protective member is a protective chain (10), spring buckles (11) are provided at both ends of the protective chain (10), first ear plates (12) are provided on both sides of the main platform (1), and a second ear plate (13) is provided on the railing (4), and the spring buckles (11) at both ends are buckled with the first ear plate (12) and the second ear plate (13) respectively.

5. The expandable aerial work platform according to claim 4, characterized in that: Two protective chains (10) are provided on each side, the first ear plate (12) is located at the upper and middle parts of the main platform (1), and the second ear plate (13) is located at the upper and middle parts of the railing (4).

6. The expandable aerial work platform according to claim 1, characterized in that: A load-bearing connection piece is provided between the main platform (1) and the side platform (2).

7. The expandable aerial work platform according to claim 6, characterized in that: The load-bearing connecting member is a load-bearing chain (14), and the two ends of the load-bearing chain (14) are respectively connected to the upper end of the main platform (1) and the outer end of the side platform (2); the two ends of the load-bearing chain (14) are provided with shackles (15), the two sides of the main platform (1) are provided with third ear plates (16), and the side platform (2) is provided with a fourth ear plate (17), and the shackles (15) at the two ends are respectively connected to the third ear plate (16) and the fourth ear plate (17).

8. The expandable work platform for aerial work according to claim 4, characterized in that: A third pin shaft (18) is provided on the side platform (2), and when the side platform (2) is in a folded state, the third pin shaft (18) is connected to the first ear plate (12).

9. The expandable aerial work platform according to claim 2, characterized in that: Mounting plates (19) are provided on both sides of the side platform (2), and limiting grooves (20) are provided on the mounting plates (19). The lower end of the handrail (4) is arranged in the limiting groove (20), and a portion of the first pin shaft (7) and a portion of the second pin shaft (8) are both arranged in the limiting groove (20).

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