Omnibearing safety engineering ladder

Abstract

The utility model is applicable to the technical field of safety engineering ladders, and provides an omnibearing safety engineering ladder, which comprises an engineering ladder main body and an adjusting frame assembly, the adjusting frame assembly is assembled on the engineering ladder main body, and a seat assembly is assembled on the adjusting frame assembly; the adjusting frame assembly comprises a guide cross beam, a guide sliding block is assembled on the guide cross beam in a sliding mode, a first supporting column is rotationally assembled on the guide sliding block, the first supporting column is assembled at the bottom of the seat assembly, and the seat assembly rotates through the first supporting column to increase the construction coverage area of operators. Balance supporting legs are additionally arranged at one ends of the guide cross beams, and the other ends are rotationally assembled on the engineering ladder main body; the seat assembly is matched with the engineering ladder main body through the guide cross beam to revolve so as to increase the construction coverage area of operators; the balance supporting legs are used for improving the supporting strength of the seat assembly in the process of rotating around the engineering ladder body.

Description

Technical Field

[0001] The utility model relates to the technical field of safety engineering ladders, and more specifically, particularly to an all-round safety engineering ladder. Background Art

[0002] "Construction ladders" usually refer to ladders used on construction sites. These ladders are usually designed to meet the needs of construction work, including load-bearing weight, stability, and adaptability to different types of ground. Construction ladders generally include: 1. Scaffolding ladders, which are usually used for high-altitude work on construction sites, such as bricklaying or painting on walls; they are usually made of metal, can be adjusted in height, and can be built into different shapes to adapt to different work needs; 2. Folding ladders, which can be folded into a compact shape for easy carrying and storage; they are usually used on construction sites that require frequent movement, or for work in limited spaces; 3. Handrail ladders: This type of ladder has one or more handrails to increase safety when going up and down the ladder; handrail ladders are usually used for work that requires frequent ups and downs, such as picking up goods in warehouses or stores, etc.

[0003] For the herringbone ladder in the construction ladder, the operator can only ride on it to work, and reach the construction point by twisting his body, resulting in a small working coverage area; at the same time, when the operator twists his body during construction, it is easy to cause the chassis support of the herringbone ladder to be unstable; for example, the herringbone ladders described in the Chinese patents of a multifunctional safety engineering ladder (authorization announcement number CN213953480U) and a multifunctional safety engineering ladder (authorization announcement number CN214943920U) all have the above problems;

[0004] Therefore, in response to the above problems, a comprehensive safety engineering ladder is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art: for the herringbone ladder among engineering ladders, the operator can only ride on it to work, and reach the construction point by twisting his own body, resulting in a small working coverage area; at the same time, during the construction process in which the operator twists his body, it is easy to cause the chassis support of the herringbone ladder to be unstable, and an all-round safe engineering ladder is proposed.

[0006] The specific technical scheme is: an all-round safety engineering ladder, including an engineering ladder main body and an adjustment frame assembly, the adjustment frame assembly is mounted on the engineering ladder main body, the adjustment frame assembly is equipped with a seat assembly, the seat assembly is used for operators to sit; the seat assembly is equipped with straps, the straps are used to restrain operators; the adjustment frame assembly includes a guide beam, the guide beam is slidably equipped with a guide slider, the guide slider is rotatably equipped with a support column one, the support column one is mounted on the bottom of the seat assembly, the seat assembly rotates through the support column one to increase the construction coverage area of ​​the operator; a balancing support leg is installed at one end of the guide beam, and the other end is rotatably assembled on the engineering ladder main body; the seat assembly revolves in coordination with the engineering ladder main body through the guide beam to increase the construction coverage area of ​​the operator; the balancing support leg is used to increase the supporting strength of the seat assembly during the rotation process around the engineering ladder main body.

[0007] After the main body of the engineering ladder enters the construction area, the operator enters the seat assembly through the main body of the engineering ladder. The seat assembly restrains the operator with straps to improve the stability and safety of the operator when working at height; the seat assembly rotates by itself through the support column and the guide slider, which improves the comfort of the operator's body rotation during construction and increases the operator's construction coverage area; the seat assembly revolves in coordination with the main body of the engineering ladder through the guide beam, so as to increase the operator's construction coverage area; at the same time, combined with the sliding assembly of the guide beam and the guide slider, the coverage range of the revolution radius of the seat assembly is increased; the self-rotation and revolution of the seat assembly, as well as the adjustment of the revolution radius, combined to achieve the flexibility of the operator's construction and the flexibility of the construction coverage range; the balancing support legs increase the supporting strength of the seat assembly during the rotation around the main body of the engineering ladder, and achieve the stability of the chassis of the main body of the engineering ladder.

[0008] In the technical solution of the utility model, the seat assembly includes a backrest, which is installed on the seat plate; and the straps are installed on the backrest.

[0009] In the technical solution of the utility model, a positioning block is installed between the guide beam and the balancing support leg; the balancing support leg includes an upper support rod and a lower storage tube, the upper support rod is movably inserted into the lower storage tube and limited by a fixing pin; a plurality of fixing holes with equal spacing are provided on the upper support rod to cooperate with the fixing pin; a supporting foot is fixed to the end of the lower storage tube away from the upper support rod, and a supporting wheel is installed on the supporting foot.

[0010] In the technical solution of the utility model, the engineering ladder body includes a height adjustment component and a single-leg support ladder; two single-leg support ladders are provided and are rotatably assembled on the height adjustment component, a buckle is provided on the single-leg support ladder, and the height adjustment component is provided with multiple slots, and the positioning between the height adjustment component and the single-leg support ladder is completed by the cooperation of the buckle and the slot.

[0011] Furthermore, the height adjustment component includes a support platform, and a single-leg support ladder is rotatably assembled on the side of the support platform; a limit tube is inserted and fixed on the support platform, and a second support column is movably inserted on the limit tube, and the second support column and the limit tube are fixed by a limit pin; a plurality of limit holes distributed at equal intervals are opened on the second support column.

[0012] Furthermore, the single-leg support ladder includes a reinforcement beam and a side support column; two side support columns are provided and distributed at both ends of the reinforcement beam; the side support columns are rotated and assembled along the main body direction of the reinforcement beam.

[0013] Furthermore, a plurality of telescopic climbing rods are installed between the two side support columns, the telescopic climbing rods are rotatably assembled with the side support columns, and the plurality of telescopic climbing rods are equidistantly inserted on the main support column; the main support column is fixed on the reinforcement beam, and the main support column is between the two side support columns; the main support column is equipped with a climbing adjustment rod at the end away from the reinforcement beam, and the climbing adjustment rod is rotatably assembled on the side support column, and the two side support columns are flipped outward along the adjustment indication direction through the telescopic adjustment of the climbing adjustment rod.

[0014] The stepping-on adjusting rods are provided with two and are distributed on both sides of the main supporting column; the stepping-on adjusting rods include a threaded rod; the threaded rod is threadedly inserted into the threaded tube and is threadedly connected to the threaded tube; a conical tooth 2 is fixed on the end of the threaded rod away from the threaded tube; a protective sleeve is provided on the outside of the threaded tube, and a limiting slide groove is provided on the protective sleeve and is distributed along the column direction of the protective sleeve; a limiting slider is provided on the outside of the threaded tube to cooperate with the limiting slide groove, and the limiting slider is slidably inserted into the limiting slide groove.

[0015] The conical tooth 2 is meshed with the conical tooth 1, which is fixed on the rotating rod. The rotating rod is rotatably inserted into the main support column. The main support column is rotatably equipped with a turning handle at its end, and the turning handle is connected to the rotating rod in a power transmission manner.

[0016] Turn the handle to drive the rotating rod to rotate, the rotating rod drives the conical gear 1 to rotate, the conical gear 1 drives the conical gear 2, the conical gear 2 drives the threaded rod, and the threaded rod and the threaded tube are threadedly transmitted to drive the threaded tube to move outward, so that the stepping adjustment rod is extended, and the two side support columns are turned outward along the adjustment indication direction with the reinforcement beam as the rotation point, thereby improving the stability of the main chassis of the engineering ladder.

[0017] Compared with the prior art, the utility model all-round safety engineering ladder can achieve:

[0018] 1. After the main body of the engineering ladder enters the construction area, the operator enters the seat assembly through the main body of the engineering ladder. The seat assembly restrains the operator through straps to improve the stability and safety of the operator in high-altitude operations;

[0019] 2. When the operator is working in the construction area, the seat assembly rotates by itself through the support column and the guide slider, which improves the comfort of the operator's body rotation during construction and increases the operator's construction coverage area; the seat assembly revolves in coordination with the engineering ladder body through the guide crossbeam, so as to increase the operator's construction coverage area; at the same time, combined with the sliding assembly of the guide crossbeam and the guide slider, the coverage range of the revolution radius of the seat assembly is increased; the self-rotation and revolution of the seat assembly, as well as the adjustment of the revolution radius, combined to achieve the flexibility of the operator's construction and the flexibility of the construction coverage; the balancing support legs increase the support strength of the seat assembly during the rotation process around the engineering ladder body, and achieve the stability of the chassis of the engineering ladder body;

[0020] 3. Turn the handle to drive the rotating rod to rotate, the rotating rod drives the conical gear 1 to rotate, the conical gear 1 drives the conical gear 2, the conical gear 2 drives the threaded rod, and the threaded rod and the threaded tube are threadedly transmitted to drive the threaded tube to move outward, so that the stepping adjustment rod is extended, and the two side support columns are turned outward along the adjustment indication direction with the reinforcement beam as the rotation point, so as to improve the stability of the main chassis of the engineering ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an all-round safety engineering ladder in one embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the assembly structure of a seat assembly and an adjustment frame assembly in one embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of an adjustment frame assembly in one embodiment of the utility model;

[0025] Figure 4 It is a structural schematic diagram of a seat assembly in one embodiment of the utility model;

[0026] Figure 5 It is a schematic diagram of the assembly structure of a height adjustment component and a single-leg support ladder in one embodiment of the utility model;

[0027] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0028] Figure 7 This is a schematic structural diagram of a single-leg support ladder in one embodiment of the utility model;

[0029] Figure 8 It is a schematic structural diagram of a single-leg support ladder in one embodiment of the utility model after the reinforcement beam is removed;

[0030] Fig. 9 It is a structural schematic diagram of a stepping adjustment rod in one embodiment of the utility model;

[0031] Fig.10 It is a schematic cross-sectional view of the structure of the stepping adjustment rod at the protective sleeve in one embodiment of the utility model;

[0032] Fig.11 This is a demonstration diagram of adjusting the bottom support stability of a single-leg support ladder in an embodiment of the utility model (wherein A is a schematic diagram of the single-leg support ladder with the bottom adjustment increased and the stability enhanced; B is a schematic diagram of the single-leg support ladder with the bottom adjustment decreased and the stability weakened).

[0033] In the reference numerals:

[0034] Seat assembly 100; backrest 110, straps 120, seat plate 130;

[0035] Adjustment frame assembly 200; guide beam 210, guide slider 220, support column 1 230, positioning block 240, balance support leg 250; upper support rod 2501, lower storage tube 2502, support foot 2503;

[0036] Height adjustment assembly 300; limiting tube 310, supporting column 2 320, limiting hole 330, limiting pin 340, supporting platform 350;

[0037] Single-leg support ladder 400; reinforcement beam 410, turn handle 420, side support column 430, main support column 440, telescopic climbing rod 450, climbing adjustment rod 460, rotating rod 470, conical gear 1 480; conical gear 2 4601, threaded rod 4602, protective sleeve 4603, threaded pipe 4604;

[0038] Adjust the indication direction 500. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0040] In the embodiment of the utility model, Figure 1-4 As shown: an all-round safety engineering ladder, comprising an engineering ladder body and an adjustment frame assembly 200, the adjustment frame assembly 200 is assembled on the engineering ladder body, a seat assembly 100 is assembled on the adjustment frame assembly 200, the seat assembly 100 is used for operators to sit; a strap 120 is additionally installed on the seat assembly 100, the strap 120 is used to restrain the operator;

[0041] Therefore, after the engineering ladder body enters the construction area, the operator enters the seat assembly 100 through the engineering ladder body, and the seat assembly 100 restrains the operator through the straps 120, thereby improving the stability and safety of the operator in high-altitude operations;

[0042] The adjustment frame assembly 200 includes a guide beam 210, on which a guide slider 220 is slidably mounted, and on which a support column 230 is rotatably mounted. The support column 230 is mounted at the bottom of the seat assembly 100, and the seat assembly 100 is rotated by the support column 230 to increase the construction coverage area of ​​the operator;

[0043] A balancing support leg 250 is installed at one end of the guide beam 210, and the other end is rotatably mounted on the engineering ladder body; the seat assembly 100 is coordinated with the engineering ladder body through the guide beam 210 to perform revolution to increase the construction coverage area of ​​the operator; the balancing support leg 250 is used to increase the support strength of the seat assembly 100 during the rotation process around the engineering ladder body;

[0044] Therefore, when the operator is carrying out construction in the construction area, the seat assembly 100 rotates by itself through the rotating assembly of the support column 230 and the guide slider 220, thereby improving the comfort of the operator's body rotation during construction and increasing the operator's construction coverage area; the seat assembly 100 revolves in coordination with the engineering ladder body through the guide beam 210, thereby increasing the operator's construction coverage area; at the same time, combined with the sliding assembly of the guide beam 210 and the guide slider 220, the coverage range of the revolution radius of the seat assembly 100 is increased; the above-mentioned rotation and revolution of the seat assembly 100, as well as the adjustment of the revolution radius, combine to achieve the flexibility of the operator's construction and the flexibility of the construction coverage range; the balancing support leg 250 increases the supporting strength of the seat assembly 100 during the rotation around the engineering ladder body, thereby achieving the stability of the chassis of the engineering ladder body.

[0045] Summarizing the above situations, it can be learned that: after the engineering ladder body enters the construction area, the operator enters the seat assembly 100 through the engineering ladder body, and the seat assembly 100 restrains the operator through the straps 120 to improve the stability and safety of the operator in high-altitude operations; the seat assembly 100 rotates by rotating the support column 230 and the guide slider 220 to improve the comfort of the operator's body rotation during construction and increase the operator's construction coverage area; the seat assembly 100 revolves in coordination with the engineering ladder body through the guide beam 210 to improve the operator's construction coverage area; at the same time, combined with the sliding assembly of the guide beam 210 and the guide slider 220, the coverage range of the revolution radius of the seat assembly 100 is improved; the self-rotation and revolution of the seat assembly 100, as well as the adjustment of the revolution radius, combined to achieve the flexibility of the operator's construction and the flexibility of the construction coverage; the balancing support leg 250 improves the support strength of the seat assembly 100 during the rotation process around the engineering ladder body, and achieves the stability of the chassis of the engineering ladder body.

[0046] In the embodiment of the utility model, Figure 2 and Figure 4 As shown, the seat assembly 100 includes a backrest 110 , which is mounted on a seat plate 130 ; and a strap 120 is mounted on the backrest 110 .

[0047] In the embodiment of the utility model, Figure 2 and Figure 3 As shown: a positioning block 240 is installed between the guide beam 210 and the balance support leg 250;

[0048] The balancing support leg 250 includes an upper support rod 2501 and a lower storage tube 2502. The upper support rod 2501 is movably inserted into the lower storage tube 2502 and is limited by a fixing pin. The upper support rod 2501 is provided with a plurality of fixing holes distributed at equal intervals to cooperate with the fixing pin.

[0049] A support foot 2503 is fixed to one end of the lower storage tube 2502 away from the upper support rod 2501 , and a support wheel is installed on the support foot 2503 .

[0050] It should be noted that the fixing pins and fixing holes are both existing technologies, and there is no restriction on their specific structures as long as they can form a cavity; at the same time, they can be purchased directly on the market, and there are related descriptions in corresponding journals and literature. They are not what the present invention wants to protect, so they will not be elaborated here.

[0051] In the embodiment of the utility model, Figure 5As shown: the engineering ladder body includes a height adjustment component 300 and a single-leg support ladder 400; two single-leg support ladders 400 are provided and are rotatably assembled on the height adjustment component 300, a buckle is provided on the single-leg support ladder 400, and the height adjustment component 300 is provided with a plurality of slots, and the positioning between the height adjustment component 300 and the single-leg support ladder 400 is completed by the cooperation of the buckle and the slot.

[0052] It should be noted that: the buckle and the slot are both existing technologies, and there is no restriction on their specific structure as long as they can form a cavity; at the same time, they can be purchased directly on the market, and there are related descriptions in corresponding journals. They are not protected by the present invention and will not be elaborated here.

[0053] In the embodiment of the utility model, Figure 5 and Figure 6 As shown: the height adjustment assembly 300 includes a support platform 350, and a single-leg support ladder 400 is rotatably assembled on the side of the support platform 350;

[0054] The support platform 350 is fixedly inserted with a limiting tube 310 , and the limiting tube 310 is movably inserted with a second support column 320 , which is fixed to the limiting tube 310 via a limiting pin 340 ; the second support column 320 is provided with a plurality of limiting holes 330 distributed at equal intervals.

[0055] In the embodiment of the utility model, Figure 5 , 7 As shown in FIG. 8 , the single-leg support ladder 400 includes a reinforcement beam 410 and a side support column 430 ; two side support columns 430 are provided and are distributed at both ends of the reinforcement beam 410 ; the side support columns 430 are rotated and assembled along the main body direction of the reinforcement beam 410 .

[0056] In the embodiment of the utility model, Figure 7 , 8 As shown in Figure 11: a plurality of telescopic climbing rods 450 are installed between the two side support columns 430 (the telescopic climbing rod 450 is composed of an inner rod and a sleeve sleeved on the inner rod), the telescopic climbing rod 450 is rotatably assembled with the side support column 430, and the plurality of telescopic climbing rods 450 are inserted into the main support column 440 at equal intervals; the main support column 440 is fixed on the reinforcement beam 410, and the main support column 440 is between the two side support columns 430;

[0057] The main support column 440 is equipped with a stepping adjustment rod 460 at one end away from the reinforcement beam 410. The stepping adjustment rod 460 is rotatably assembled on the side support column 430. By telescopically adjusting the stepping adjustment rod 460, the two side support columns 430 can be flipped outward along the adjustment indication direction 500.

[0058] In the embodiment of the utility model, Figure 7-10 As shown: the stepping adjustment rods 460 are provided with two and are distributed on both sides of the main support column 440;

[0059] The stepping adjustment rod 460 includes a threaded rod 4602; the threaded rod 4602 is threadedly inserted into the threaded tube 4604 and is threadedly connected to the threaded tube 4604; a conical tooth 4601 is fixed at one end of the threaded rod 4602 away from the threaded tube 4604;

[0060] A protective sleeve 4603 is sleeved on the outside of the threaded tube 4604, and a limiting slide groove is opened on the protective sleeve 4603 and distributed along the column direction of the protective sleeve 4603. A limiting slider is arranged on the outside of the threaded tube 4604 to cooperate with the limiting slide groove, and the limiting slider slides and is inserted into the limiting slide groove.

[0061] like Figure 7-11 As shown: the conical tooth 2 4601 is meshed with a conical tooth 1 480, and the conical tooth 1 480 is fixed on the rotating rod 470. The rotating rod 470 is rotatably inserted into the main support column 440. The main support column 440 is rotatably equipped with a turning handle 420 at its end, and the turning handle 420 is connected to the rotating rod 470 in a power transmission manner.

[0062] To summarize the above, it can be learned that: by turning the handle 420, the rotating rod 470 is driven to rotate through the handle 420, the rotating rod 470 drives the conical tooth 1 480 to rotate, the conical tooth 1 480 drives the conical tooth 2 4601, the conical tooth 2 4601 drives the threaded rod 4602, and the threaded tube 4604 is driven to move outward through the threaded transmission between the threaded rod 4602 and the threaded tube 4604, so that the stepping adjustment rod 460 is extended, and the two side support columns 430 are turned outward along the adjustment indication direction 500 with the reinforcement beam 410 as the rotation point, thereby improving the stability of the main chassis of the engineering ladder.

[0063] For the herringbone ladder in the construction ladder, the operator can only ride on it to work, and reach the construction point by twisting his body, resulting in a small working coverage area; at the same time, when the operator twists his body during construction, it is easy to cause the herringbone ladder chassis support to be unstable; the utility model all-round safety engineering ladder can do the following:

[0064] After the main body of the engineering ladder enters the construction area, the operator enters the seat assembly 100 through the main body of the engineering ladder. The seat assembly 100 restrains the operator through the straps 120, thereby improving the stability and safety of the operator when working at height; the seat assembly 100 rotates by rotating the support column 230 and the guide slider 220, thereby improving the comfort of the operator's body rotation during construction and increasing the construction coverage area of ​​the operator; the seat assembly 100 revolves in coordination with the main body of the engineering ladder through the guide beam 210, thereby improving the construction coverage area of ​​the operator; at the same time, combined with the sliding assembly of the guide beam 210 and the guide slider 220, the coverage range of the revolution radius of the seat assembly 100 is increased; the self-rotation and revolution of the seat assembly 100, as well as the adjustment of the revolution radius, combined to achieve the flexibility of the operator's construction and the flexibility of the construction coverage; the balancing support leg 250 improves the supporting strength of the seat assembly 100 during the rotation process around the main body of the engineering ladder, thereby achieving the stability of the chassis of the main body of the engineering ladder.

[0065] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An all-round safety engineering ladder, characterized in that: The utility model comprises an engineering ladder body and an adjustment frame assembly (200), wherein the adjustment frame assembly (200) is assembled on the engineering ladder body, and a seat assembly (100) is assembled on the adjustment frame assembly (200), and the seat assembly (100) is used for operators to sit on; and a binding belt (120) is additionally installed on the seat assembly (100), and the binding belt (120) is used to restrain the operators; The adjustment frame assembly (200) comprises a guide crossbeam (210), a guide slider (220) is slidably mounted on the guide crossbeam (210), a support column (230) is rotatably mounted on the guide slider (220), the support column (230) is mounted on the bottom of the seat assembly (100), and the seat assembly (100) is rotated by the support column (230) to increase the construction coverage area of ​​the operator; A balancing support leg (250) is installed at one end of the guide crossbeam (210), and the other end is rotatably mounted on the engineering ladder body; the seat assembly (100) is coordinated with the engineering ladder body through the guide crossbeam (210) to perform revolution so as to increase the construction coverage area for operators; the balancing support leg (250) is used to increase the support strength of the seat assembly (100) during the process of rotating around the engineering ladder body.

2. An all-round safety engineering ladder according to claim 1, characterized in that: The seat assembly (100) comprises a backrest (110), wherein the backrest (110) is mounted on a seat plate (130); and a strap (120) is mounted on the backrest (110).

3. The all-round safety engineering ladder according to claim 1, characterized in that: A positioning block (240) is installed between the guide crossbeam (210) and the balancing support leg (250); The balancing support leg (250) comprises an upper support rod (2501) and a lower storage tube (2502); the upper support rod (2501) is movably inserted into the lower storage tube (2502) and is limited by a fixing pin; a plurality of fixing holes distributed at equal intervals are provided on the upper support rod (2501) to cooperate with the fixing pin; A support foot (2503) is fixed to the lower storage tube (2502) at one end away from the upper support rod (2501), and a support wheel is installed on the support foot (2503).

4. An all-round safety engineering ladder according to claim 1, 2 or 3, characterized in that: The engineering ladder body comprises a height adjustment component (300) and a single-leg support ladder (400); two single-leg support ladders (400) are provided and are rotatably assembled on the height adjustment component (300); a buckle is provided on the single-leg support ladder (400); the height adjustment component (300) is provided with a plurality of slots; the height adjustment component (300) and the single-leg support ladder (400) are limited by the cooperation of the buckle and the slot.

5. An all-round safety engineering ladder according to claim 4, characterized in that: The height adjustment assembly (300) comprises a support platform (350), and a single-leg support ladder (400) is rotatably mounted on the side of the support platform (350); A limiting tube (310) is inserted and fixed on the support platform (350), a second support column (320) is movably inserted on the limiting tube (310), and the second support column (320) and the limiting tube (310) are fixed by a limiting pin (340); a plurality of limiting holes (330) distributed at equal intervals are opened on the second support column (320).

6. The all-round safety engineering ladder according to claim 4, characterized in that: The single-leg support ladder (400) comprises a reinforcement beam (410) and a side support column (430); two side support columns (430) are provided and distributed at both ends of the reinforcement beam (410); and the side support columns (430) are rotatably assembled along the main body direction of the reinforcement beam (410).

7. An all-round safety engineering ladder according to claim 6, characterized in that: A plurality of telescopic climbing rods (450) are installed between the two side support columns (430), the telescopic climbing rods (450) and the side support columns (430) are rotatably assembled, and the plurality of telescopic climbing rods (450) are inserted into the main support column (440) at equal intervals; the main support column (440) is fixed on the reinforcement beam (410), and the main support column (440) is located between the two side support columns (430); The main support column (440) is equipped with a stepping adjustment rod (460) at one end away from the reinforcement beam (410). The stepping adjustment rod (460) is rotatably mounted on the side support column (430). The stepping adjustment rod (460) is telescopically adjusted so that the two side support columns (430) are turned outward along the adjustment indication direction (500).

8. An all-round safety engineering ladder according to claim 7, characterized in that: Two stepping adjustment rods (460) are provided and are distributed on both sides of the main support column (440); The stepping adjustment rod (460) comprises a threaded rod (4602); the threaded rod (4602) is threadedly inserted into the threaded tube (4604) and is threadedly connected to the threaded tube (4604); a conical tooth 2 (4601) is fixed at one end of the threaded rod (4602) away from the threaded tube (4604); A protective sleeve (4603) is sleeved on the outside of the threaded tube (4604), and a limiting slide groove is provided on the protective sleeve (4603) and is distributed along the column direction of the protective sleeve (4603). A limiting slider is provided on the outside of the threaded tube (4604) to cooperate with the limiting slide groove, and the limiting slider slides and is inserted into the limiting slide groove.

9. An all-round safety engineering ladder according to claim 8, characterized in that: The conical tooth 2 (4601) is meshed with the conical tooth 1 (480), and the conical tooth 1 (480) is fixed on the rotating rod (470). The rotating rod (470) is rotatably inserted into the main support column (440), and the main support column (440) is rotatably equipped with a turning handle (420) at its end, and the turning handle (420) is connected to the rotating rod (470) in a power transmission manner.

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