Telescopic protective frame ladder

Abstract

The utility model discloses a telescopic protective frame ladder, which comprises two main ladders, the upper ends of the two main ladders are respectively connected with two sliding ladders in a sliding manner, the tops of the two sliding ladders are hinged with each other, a construction platform is arranged at the tops of the two sliding ladders, a construction fence is arranged above the construction platform, and the construction fence is arranged above the construction platform. Side supporting mechanisms for preventing lateral toppling are arranged on the two sides of the two main ladders; the side supporting mechanism comprises a first connector, one end of the first connector is hinged to one side of the main ladder, the other end of the first connector is hinged to one end of the supporting rod, and a positioning piece used for limiting the supporting rod is movably arranged on the side, close to the bottom, of the main ladder; according to the scheme, the sliding ladder is stable in structure, safe and reliable, an operator on a construction platform can be protected in all directions when the sliding ladder is used, and the operator is prevented from falling off; meanwhile, storage is convenient, and occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction equipment, and particularly relates to a telescopic protective ladder. Background Art

[0002] A folding ladder is a climbing tool used for working such as building construction in the space above a plane. When it is in use, the front and rear ladder bars and the ground form an isosceles triangle, looking like a Chinese character '人' (meaning person), so it is vividly called a folding ladder.

[0003] At present, the folding ladder has a simple structure and generally can only achieve the closing of the front and rear ladder bars, and cannot achieve retractable folding, resulting in a large occupied space. At the same time, the fixing effect and stability of the folding ladder during use are poor, leading to the folding ladder being prone to lateral tipping. In addition, safety facilities such as an operating platform guardrail are not provided on the folding ladder, and there are great safety hazards when operators perform climbing operations on the folding ladder. Content of the Utility Model

[0004] Aiming at the above deficiencies of the prior art, the utility model provides a telescopic protective ladder, which solves the technical problems mentioned in the above background art.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] Provide a telescopic protective ladder, which includes two main ladders. The upper ends of the two main ladders are respectively slidably connected with two sliding ladders. The tops of the two sliding ladders are hinged to each other. A construction platform is arranged at the top of the two sliding ladders. A construction fence is arranged above the construction platform. Side support mechanisms for preventing lateral tipping are arranged on both sides of the two main ladders.

[0007] Further, the side support mechanism includes a first connecting head. One end of the first connecting head is hinged to one side of the main ladder, and the other end of the first connecting head is hinged to one end of a support rod. A positioning member for limiting the support rod is movably arranged on one side of the main ladder near the bottom.

[0008] Further, the positioning member includes a second connecting head. One end of the second connecting head is hinged to one side of the main ladder near the bottom, and the other end of the second connecting head is hinged to one end of a positioning group plate. The positioning group plate includes two parallel positioning plates. Sliding grooves are arranged on the two positioning plates. A sliding pin is arranged in the middle of the support rod, and both ends of the sliding pin are slidably matched with the two sliding grooves respectively.

[0009] Further, a plurality of card slots for engaging with the sliding pin are arranged at intervals on one side in the extending direction of the sliding groove.

[0010] Furthermore, the rotation plane at the hinge points between the first connector and the main ladder, and between the second connector and the main ladder, is perpendicular to the extension direction of the main ladder; the rotation plane at the hinge points between the first connector and the support rod, and between the second connector and the positioning plate, is parallel to the extension direction of the main ladder.

[0011] Furthermore, sliding connecting blocks are provided on both sides of the top of the main ladder. The two sliding connecting blocks are slidably fitted on both sides of the sliding ladder. The sliding connecting blocks are provided with through holes to facilitate the bolts to pass through. Several threaded holes that are matched with the bolts are provided in the extending direction of the side of the sliding ladder.

[0012] Furthermore, the construction fence is U-shaped, with ear loops at both ends. One ear loop is connected to one end of a protective rope, and the other end of the protective rope is detachably connected to the other ear loop via a buckle.

[0013] Furthermore, handrails are installed on both sides of the slide ladder near the opening of the construction fence.

[0014] Furthermore, the two sides of the top of the two slides are connected by two hinged plates. The hinged plates consist of two hinged plates, one end of which is hinged to each other, and the other end of which is fixedly connected to one side of the top of the two slides.

[0015] Furthermore, the top sides of the two main ladders are connected by two tie rod assemblies. Each tie rod assembly includes two tension rods, one end of which is hinged to each other, and the other end of which is hinged to one side of the top of the two main ladders respectively.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The sliding ladder in this solution can be extended and adjusted via sliding connecting blocks to facilitate adjustment of the overall height of the protective ladder, while saving space occupied in the length direction during storage; the construction platform is convenient for operators to stand on, and the construction railing and safety rope can provide all-round protection for operators to prevent falls, thereby enhancing safety when working at height; four support rods can reliably support both sides of the two main ladders to prevent the protective ladder from tilting to the side, thereby improving the stability and reliability of the protective ladder during use.

[0018] 2. The support rod of this solution can be universally adjusted through the first connector. Through the cooperation of the sliding pin and several slots in the sliding groove, the support rod can be fixed and supported, thereby providing reliable support for both sides of the main ladder. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a telescopic protective ladder.

[0020] Figure 2 This is a schematic diagram of the side support mechanism.

[0021] Among them, 1. Main ladder, 2. Sliding ladder, 3. Construction platform, 4. Construction fence, 5. First connector, 6. Support rod, 7. Second connector, 8. Positioning plate, 9. Sliding groove, 10. Sliding pin, 11. Card slot, 12. Sliding connecting block, 13. Earring, 14. Protective rope, 15. Buckle, 16. Handrail fence, 17. Hinge plate, 18. Tension rod, 19. Connecting rod. Detailed Implementation

[0022] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0023] like Figure 1 As shown, the telescopic protective ladder of this scheme includes two main ladders 1, the upper ends of the two main ladders 1 are slidably connected to two sliding ladders 2 respectively, the tops of the two sliding ladders 2 are hinged to each other, and a construction platform 3 is provided on the top of the two sliding ladders 2, and a construction fence 4 is provided above the construction platform 3.

[0024] As an optional implementation, sliding connecting blocks 12 are provided on both sides of the top of the main ladder 1. The two sliding connecting blocks 12 are slidably sleeved on both sides of the sliding ladder 2. The sliding connecting blocks 12 are provided with through holes to facilitate the passage of bolts. Several threaded holes that cooperate with the positioning of bolts are provided on the extension direction of the side of the sliding ladder 2. The sliding ladder 2 of this solution can be extended and retracted through the sliding connecting blocks 12 to adjust the overall height of the protective frame ladder, while saving space occupied in the length direction when storing.

[0025] As an optional implementation, the construction fence 4 is U-shaped, with ear loops 13 at both ends. One ear loop 13 is connected to one end of a safety rope 14, and the other end of the safety rope 14 is detachably connected to the other ear loop 13 via a buckle 15. Handrails 16 are provided on both sides of the sliding ladder 2 near the opening end of the construction fence 4. In this solution, the construction platform 3 is convenient for operators to stand on. The construction fence 4 and the safety rope 14 can provide all-round protection for operators to avoid falling, thereby enhancing the safety of working at height. One end of the construction platform 3 can be hinged to one of the sliding ladders 2, and the other end of the construction platform 3 is placed on the other sliding ladder 2. The middle part of the construction platform 3 is hinged to the sliding ladder 2 via a connecting rod 19 to facilitate the folding of the construction platform 3.

[0026] As an optional implementation, the two sides of the top of the two slides 2 are connected by two hinged plates. The hinged plates include two hinged plates 17. One end of the two hinged plates 17 is hinged to each other, and the other end of the two hinged plates 17 is fixedly connected to one side of the top of the two slides 2 respectively.

[0027] As an optional implementation, the two sides of the top of the two main ladders 1 are connected by two tie rod assemblies. The tie rod assembly includes two tension rods 18, one end of the two tension rods 18 is hinged to each other, and the other end of the two tension rods 18 is hinged to one side of the top of the two main ladders 1, so as to enhance the stability of the two main ladders 1 after extension.

[0028] As an optional implementation method, such as Figure 2 As shown, both sides of the two main ladders 1 are equipped with side bracing mechanisms to prevent lateral tipping. Each side bracing mechanism includes a first connector 5, one end of which is hinged to one side of the main ladder 1, and the other end of which is hinged to one end of a support rod 6. A positioning element for limiting the support rod 6 is movably installed on the side of the main ladder 1 near the bottom. This positioning element includes a second connector 7, one end of which is hinged to the side of the main ladder 1 near the bottom, and the other end of which is hinged to one end of a positioning plate. The positioning plate includes two parallel positioning plates 8. Two positioning plates 8 are provided with sliding grooves 9, and a sliding pin 10 is provided in the middle of the support rod 6. The two ends of the sliding pin 10 are respectively slidably engaged with the two sliding grooves 9. A number of slots 11 for engaging with the sliding pin 10 are provided at intervals on one side of the extension direction of the sliding groove 9. The rotation plane at the hinge between the first connector 5 and the main ladder 1 and between the second connector 7 and the main ladder 1 is perpendicular to the extension direction of the main ladder 1. The rotation plane at the hinge between the first connector 5 and the support rod 6 and between the second connector 7 and the positioning plate is parallel to the extension direction of the main ladder 1.

[0029] The support rod 6 of this scheme can be universally adjusted through the first connector 5. The support rod 6 can be fixed by the cooperation of the sliding pin 10 and several slots 11 in the sliding groove 9, thereby providing reliable support on both sides of the main ladder 1, avoiding the lateral tilting of the protective ladder, and thus improving the stability and reliability of the protective ladder during use.

Claims

1. A telescopic protective ladder, characterized in that, It includes two main ladders, the upper ends of which are slidably connected to two sliding ladders respectively. The tops of the two sliding ladders are hinged to each other. A construction platform is provided on the top of the two sliding ladders. A construction fence is provided above the construction platform. Side bracing mechanisms are provided on both sides of the two main ladders to prevent lateral tipping.

2. The telescopic protective ladder according to claim 1, characterized in that, The side support mechanism includes a first connector, one end of which is hinged to one side of the main ladder, and the other end of which is hinged to one end of the support rod. A positioning element for limiting the support rod is movably provided on the side of the main ladder near the bottom.

3. The telescopic protective ladder according to claim 2, characterized in that, The positioning component includes a second connector, one end of which is hinged to the side of the main ladder near the bottom, and the other end of which is hinged to one end of the positioning plate. The positioning plate includes two parallel positioning plates, each with a sliding groove. A sliding pin is provided in the middle of the support rod, and both ends of the sliding pin are slidably engaged with the two sliding grooves respectively.

4. The telescopic protective ladder according to claim 3, characterized in that, The sliding groove has several slots spaced apart on one side of its extension direction for engaging with the sliding pin.

5. The telescopic protective ladder according to claim 3, characterized in that, The rotation plane at the hinge between the first connector and the main ladder, and between the second connector and the main ladder, is perpendicular to the extension direction of the main ladder; the rotation plane at the hinge between the first connector and the support rod, and between the second connector and the positioning plate, is parallel to the extension direction of the main ladder.

6. The telescopic protective ladder according to claim 1, characterized in that, Sliding connecting blocks are provided on both sides of the top of the main ladder. The two sliding connecting blocks are slidably sleeved on both sides of the sliding ladder. The sliding connecting blocks are provided with through holes to facilitate the passage of bolts. Several threaded holes that are positioned and matched with bolts are provided in the extending direction of the side of the sliding ladder.

7. The telescopic protective ladder according to claim 1, characterized in that, The construction fence is U-shaped, with ear loops at both ends. One of the ear loops is connected to one end of a protective rope, and the other end of the protective rope is detachably connected to the other ear loop via a buckle.

8. The telescopic protective ladder according to claim 7, characterized in that, Handrails are installed on both sides of the slide ladder near the opening of the construction fence.

9. The telescopic protective ladder according to claim 1, characterized in that, The tops of the two slides are connected on both sides by two hinged plates. Each hinged plate consists of two hinged plates, one end of which is hinged to each other, and the other end of which is fixedly connected to one side of the top of the two slides.

10. The telescopic protective ladder according to claim 1, characterized in that, The tops of the two main ladders are connected on both sides by two tie rod assemblies. Each tie rod assembly includes two tension rods, one end of which is hinged to each other, and the other end of which is hinged to one side of the top of the two main ladders respectively.

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