Working ladder for building decoration engineering

Abstract

The utility model belongs to the technical field of building decoration, and particularly relates to a working ladder for building decoration engineering. Comprising a first ladder which is composed of two first frames and two second frames; the pedal plate is hinged between the first frame and the second frame; the pedal plate comprises a groove, an anti-skid part, an inclined auxiliary plate and a limiting plate, the groove is formed in the upper surface of the pedal plate, and the anti-skid part is arranged in the groove; the inclined auxiliary plate is arranged on the front side of the top of the pedal plate, obliquely extends towards the anti-skid part and is used for assisting the feet of a worker to get close to the anti-skid part; the limiting plate is arranged on the rear side of the top of the pedal plate, the limiting plate and the inclined auxiliary plate are oppositely arranged, and the limiting plate makes contact with the front side of the foot of a worker and is used for abutting against the foot and achieving stable supporting. The utility model provides a building decoration engineering working ladder which provides stable supporting and reliable foot abutting functions for constructors.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building decoration, especially relates to a building decoration engineering working ladder. BACKGROUND

[0002] In the field of building decoration engineering, working ladder as indispensable tool is widely used in high operation scene, such as ceiling decoration, wall painting, lamp installation etc. Construction personnel need to frequently resort to working ladder to reach different height positions to carry out work.

[0003] The utility model discloses a building decoration engineering working ladder discloses a building decoration engineering working ladder, including top plate, the lower end of top plate is rotatably connected with two side frames, a plurality of footrest bars are fixedly connected in two side frames equidistantly, the lower end of two side frames is rotatably connected with second balance bar on the side close to each other, the side close to each other of two second balance bars is rotatably connected through first pin shaft, the side close to each other of one pair of footrest bars is rotatably connected with first balance bar, the side close to each other of two first balance bars is rotatably connected through second pin shaft, the lower surface middle part of top plate is fixedly connected with hydraulic telescopic rod.

[0004] Although the whole ladder structure of this technology is simple, improves the stability of ladder, is more safe to use, and is convenient to fold and carry, and is worth promoting.

[0005] But this technology adopts the structural form that multiple footrest bars connect two side ladder columns. However, the footrest bar generally has the problem of small size. In the actual decoration operation process, when the construction personnel step on the footrest bar, due to the size limitation of the footrest bar, only a part of the area of the foot can be supported. This leads to that when long-time, multi-action decoration operation is carried out, the footrest bar cannot fully provide stable support for the construction personnel, so that the foot is difficult to maintain a stable posture. At the same time, because the foot cannot be effectively clamped, the construction personnel is easy to lose balance in the operation process due to slight action deviation, and then there is the risk of falling from the working ladder.

[0006] The safety hazard caused by the design defect of the footrest bar not only seriously threatens the personal safety of the construction personnel, but also may cause the decoration engineering progress to be hindered due to accidental accidents, increase the engineering cost, and affect the smooth progress of the whole building decoration project. UTILITY MODEL CONTENTS

[0007] The utility model aims at the above-mentioned technical problem, and provides a building decoration engineering working ladder which provides stable support and reliable foot clamping function for construction personnel.

[0008] Therefore, the utility model provides a building decoration engineering working ladder, which comprises:

[0009] The ladder one is composed of first frames and second frames, each of the first frames and the second frames has two, and extends from top to bottom, and the first frame is higher than the second frame;

[0010] The frame slots are arranged on the opposite surfaces of the first frames and the second frames, and are uniformly distributed along the length direction of the first frames and the second frames;

[0011] The foot plate is hingedly arranged between the first frames and the second frames;

[0012] The foot plate comprises a recess, an anti-skid part, an inclined auxiliary plate and a limiting plate, the recess is arranged on the upper surface of the foot plate, the anti-skid part is arranged in the recess, and the surface of the anti-skid part is parallel to the surface of the foot plate; the inclined auxiliary plate is arranged on the top front side of the foot plate, and the inclined auxiliary plate extends to the anti-skid part in an inclined manner, and is used for assisting the worker to move the foot towards the anti-skid part; the limiting plate is arranged on the top rear side of the foot plate, and is arranged on the opposite surface of the inclined auxiliary plate, the limiting plate is in contact with the front side of the worker's foot, and is used for abutting against the foot and playing a stable support.

[0013] In the above technical solution, further, the anti-skid part is an anti-skid line or an anti-skid structure.

[0014] In any of the above technical solutions, further, the anti-skid part is arranged in the recess of the foot plate by means of bolt connection.

[0015] In any of the above technical solutions, further, the second frame drives the foot plate to be folded and accommodated in the frame slot, the front surface of the foot plate is located in the frame slot of the first frame, and the back surface of the foot plate is located in the frame slot of the second frame.

[0016] In any of the above technical solutions, further, the second frame is provided with a handle on the front side.

[0017] In any of the above technical solutions, further, the lower side of each of the first frame and the second frame is provided with an inclined support rod, the inclined support rod is hingedly connected with the first frame and the second frame; a bottom frame is arranged between the lower ends of the rear sides of the two first frames, and the bottom frame is hingedly connected with the first frame, and the inclined support rod and the bottom frame are used for supporting the ladder one.

[0018] In any of the above technical solutions, further, the ladder one further comprises a ladder two, the top of the ladder one and the top of the ladder two are provided with hinged locks, the ladder one and the ladder two are connected through the hinged locks, and an A-shaped folding ladder is formed.

[0019] In any of the above technical solutions, further, the hinged lock comprises:

[0020] A clamping sleeve is clamped on the top of the first frame;

[0021] A hinged plate is arranged on the clamping sleeve;

[0022] A through slot is formed in the hinge plate;

[0023] A hollow shaft is inserted into the through slots of the two hinge plates;

[0024] A connecting plate is arranged at one end of the hollow shaft;

[0025] A lock plate is arranged on the hinge plate, and a clamping shaft is arranged on the lock plate and inserted into the hollow shaft.

[0026] The utility model discloses the beneficial effects are:

[0027] 1. The work ladder can be switched between the unfolded and stored states of the footboard. When the footboard is unfolded, it can be used as a platform for workers to stand and operate, facilitating various high-altitude operations in building decoration projects. When the footboard is stored in the frame groove, the overall structure of the ladder is more compact, facilitating transportation, storage and transportation, and saving space.

[0028] 2. The anti-skid part arranged in the groove on the upper surface of the footboard increases the contact area and friction with the worker's shoe sole, effectively preventing slipping. The foot will be guided by the inclined auxiliary plate to the anti-skid part, making the foot more stable in the anti-skid part area. The limiting plate can abut against the foot to limit the forward sliding of the foot, thereby achieving the effect of stable support and further ensuring the safety and stability of the worker during operation.

[0029] 3. The anti-skid part is connected to the groove of the footboard by bolts, which can significantly improve the assembly efficiency compared to other fixing methods. In actual use, if the anti-skid part needs to be replaced due to wear and tear or adjustment due to changes in the work scene, the bolt connection allows workers to easily disassemble it and replace it with a new or adapted anti-skid part, greatly improving the flexibility of the work ladder.

[0030] 4. By setting ladder two and connecting ladder one and ladder two by the hinge lock to form an A-shaped folding ladder, the flexibility of the work ladder is greatly improved. When working in a larger space or higher position, the A-shaped structure can be unfolded to utilize its stability on both sides to allow the worker to operate in a higher and wider area. In a narrow space, ladder one and ladder two can be used separately to adapt to the requirements of narrow space and meet the diverse needs of different work scenes during construction.

[0031] 5. When ladder one and ladder two are combined into an A-shaped folding ladder, the primary purpose of the hinge lock is to achieve stable and reliable connection between the two, ensuring that the two ladders will not separate due to external forces, maintaining the integrity of the A-shaped structure and ensuring the safety of the worker. When the ladder needs to be stored or used separately, the lock can be easily released, and the operation process is simple and easy to understand, without the need for complex tools, saving operation time. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0033] Figure 2 This is a folding diagram of the ladder of this utility model;

[0034] Figure 3 This is a diagram showing the usage state of this utility model;

[0035] Figure 4 This is a three-dimensional structural diagram of the foot pedal of this utility model;

[0036] Figure 5 This is a three-dimensional structural diagram of the A-shaped folding ladder of this utility model;

[0037] Figure 6 This is an exploded view of the hinge lock of this utility model;

[0038] Figure 7 This is a folding diagram of the A-shaped folding ladder of this utility model;

[0039] The attached diagram is labeled as follows: 1. Ladder 1; 11. First frame; 12. Second frame; 2. Frame groove; 3. Foot pedal; 31. Groove; 32. Anti-slip part; 33. Inclined auxiliary plate; 34. Limiting plate; 4. Bolt; 5. Handle; 6. Diagonal brace; 7. Base frame; 8. Ladder 2; 9. Hinge lock; 91. Sleeve; 92. Hinge plate; 93. Through groove; 94. Hollow shaft; 95. Connecting plate; 96. Locking plate; 97. Locking shaft. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0041] In the description of the present application, it should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods, and devices should be considered as part of the authorized description. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] Embodiment 1:

[0043] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The present embodiment provides a building decoration engineering working ladder, comprising:

[0044] The ladder 1 is composed of a first frame 11 and a second frame 12, and the first frame 11 and the second frame 12 each have two, and extend from top to bottom, and the first frame 11 is higher than the second frame 12;

[0045] The frame slot 2 is provided on the opposite surfaces of the first frame 11 and the second frame 12, and the frame slot 2 has a plurality of and is uniformly distributed along the length direction of the first frame 11 and the second frame 12;

[0046] The foot pedal 3 is hingedly arranged between the first frame 11 and the second frame 12;

[0047] The foot pedal 3 includes a recess 31, an anti-skid part 32, an inclined auxiliary plate 33, and a limiting plate 34. The recess 31 is arranged on the upper surface of the foot pedal 3, the anti-skid part 32 is arranged in the recess 31, and the surface of the anti-skid part 32 is parallel to the surface of the foot pedal 3. The inclined auxiliary plate 33 is arranged on the top front side of the foot pedal 3, and the inclined auxiliary plate 33 extends obliquely towards the anti-skid part 32, which is used to assist the worker's foot to move towards the anti-skid part 32. The limiting plate 34 is arranged on the top rear side of the foot pedal 3, and the limiting plate 34 is arranged on the opposite surface of the inclined auxiliary plate 33. The limiting plate 34 contacts the front side of the worker's foot, which is used to tightly contact the foot and provide stable support.

[0048] In the technical solution, the working ladder can be switched between the two states of unfolding and folding the footboard 3. When the footboard 3 is unfolded, it can be used as a platform for workers to stand and operate, which is convenient for various high-altitude operations in building decoration engineering; when the footboard 3 is folded in the frame groove 2, the overall structure of the ladder is more compact, which is convenient for carrying, storing and transporting, and saves space.

[0049] The footboard 3 is provided with a groove 31 and an anti-skid part 32, the surface of the anti-skid part 32 is parallel to the surface of the footboard 3, which can increase the friction between the worker's feet and the footboard 3, prevent slipping during operation, and protect the personal safety of the worker. At the same time, the inclined auxiliary plate 33 extends obliquely to the anti-skid part 32, which can assist the worker's feet to move towards the anti-skid part 32, further improving the stability when standing; the limiting plate 34 is arranged at the top rear side of the footboard 3 and contacts the front side of the worker's feet, which can tightly contact the feet and play a role in stable support, preventing accidental forward sliding of the feet.

[0050] The ladder 1 is composed of a first frame 11 and a second frame 12, and the first frame 11 is higher than the second frame 12, and the frame groove 2 is opened on the opposite surface and uniformly spaced. This reasonable structure design makes the footboard 3 be able to be smoothly hinged between the two and realize the unfolding and folding actions, and at the same time ensures the strength and stability of the overall ladder, which meets the requirements of the working ladder structure in building decoration engineering.

[0051] Working principle: when the pedal 3 needs to be stored, the second frame 12 is lifted up. Since the pedal 3 is hingedly arranged between the first frame 11 and the second frame 12, the upward movement of the second frame 12 drives the pedal 3 to rotate. With the lifting of the second frame 12, the frame slots 2 in the first frame 11 and the second frame 12 gradually correspond. When the frame slots 2 completely correspond, the pedal 3 can be accommodated in the frame slots 2, realizing the storage of the pedal 3, and the working ladder is in a compact state, facilitating transportation and storage. When the working ladder needs to be used for work, the second frame 12 is moved downward, and the downward movement of the second frame 12 drives the pedal 3 to rotate in the opposite direction, and the pedal 3 gradually rotates out of the frame slot 2 and expands. When the second frame 12 moves to the appropriate position, the pedal 3 is completely expanded to form a horizontal working platform, and the worker can stand on it to carry out building decoration work. When the worker stands on the expanded pedal 3 to work, the anti-skid part 32 arranged in the groove 31 on the upper surface of the pedal 3 has a surface parallel to the surface of the pedal 3, which increases the contact area and friction with the worker's shoes and effectively prevents slipping. The inclined auxiliary plate 33 is arranged on the top front side of the pedal 3 and extends obliquely towards the anti-skid part 32. When the worker stands, the feet will naturally be guided by the inclined auxiliary plate 33 to move towards the anti-skid part 32, so that the feet stand more stably in the anti-skid part 32 area. The limiting plate 34 is arranged on the top rear side of the pedal 3 and is opposite to the inclined auxiliary plate 33. When the worker's feet contact the limiting plate 34, the limiting plate 34 can abut against the feet to limit the forward sliding of the feet, thereby playing a role in stabilizing and supporting, further ensuring the safety and stability of the worker during work.

[0052] Example 2:

[0053] The embodiment provides a building decoration engineering working ladder, which has the following technical features in addition to the technical solutions of the above-mentioned embodiments.

[0054] As Figure 4 shown, in this embodiment, the anti-skid part 32 is an anti-skid pattern or structure.

[0055] In the technical solution, in the building decoration engineering operation scene, the working environment is complex and diverse, and there may be dust, water stains, paint and other substances on the ground, which can easily reduce the friction between the sole and the footboard 3, and there is a great risk of slipping. By setting the anti-skid pattern or anti-skid structure as the anti-skid part 32, the roughness of the surface of the footboard 3 can be significantly increased, and the friction between the sole and the footboard 3 can be greatly improved, effectively reducing the possibility of slipping during standing and moving, and protecting the personal safety of the workers. Different building decoration engineering operations may have different requirements for the anti-skid performance of the working ladder. The anti-skid pattern or anti-skid structure can be designed diversely according to actual needs, such as in the operation scene where there is more humid environment, a special anti-skid pattern or structure with good drainage and high friction can be designed; in the scene where the wear of the sole is required to be higher, the anti-skid structure with suitable material and shape is selected, which can not only ensure the anti-skid effect but also reduce the damage to the sole. This flexibility enables the working ladder to adapt to various complex building decoration operation environments.

[0056] As shown in Figure 1 and Figure 4 In this embodiment, the optimized anti-skid part 32 is connected to the footboard 3 groove 31 by bolts 4.

[0057] In the technical solution, the anti-skid part 32 is connected to the footboard 3 groove 31 by bolts 4, which can significantly improve the assembly efficiency compared to other fixing methods. Workers only need to use common bolt 4 installation tools to quickly complete the installation of the anti-skid part 32. However, in actual use, if the anti-skid part 32 needs to be replaced due to wear and tear or needs to be adjusted due to changes in the operation scene, the bolt 4 connection allows workers to easily disassemble it and replace it with a new or adapted anti-skid part 32, greatly improving the flexibility of the working ladder. The bolt 4 connection can provide reliable fastening force to firmly fix the anti-skid part 32 in the footboard 3 groove 31. In the building decoration engineering operation, the working ladder will bear the weight of different workers and various dynamic forces generated during operation. By tightly connecting the anti-skid part 32 with bolts 4, it can be ensured that the anti-skid part 32 always remains firmly combined with the footboard 3 under complex stress conditions, without loosening, shifting or other phenomena, maintaining the safety performance and structural integrity of the working ladder as a whole, effectively avoiding safety accidents caused by loosening of the anti-skid part 32. Since the anti-skid part 32 directly contacts the worker's sole, it is one of the easily damaged parts of the working ladder. The use of bolts 4 makes it possible to replace the anti-skid part 32 individually without replacing the entire footboard 3, greatly reducing maintenance costs. Moreover, during daily inspection and maintenance, workers can conveniently check the fastening state of the bolts 4 to quickly judge the installation stability of the anti-skid part 32, timely discover potential safety hazards and handle them, further saving maintenance time and labor costs.

[0058] As Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7 shown, in this embodiment, the optimized, the second frame 12 drive pedal 3 folding accommodation in frame slot 2, pedal 3 front surface in the frame slot 2 of the first frame 11, pedal 3 back in the frame slot 2 of the second frame 12.

[0059] In this technical solution, in the construction decoration engineering construction site, the space is often limited and messy. When not in use, the foot pedal 3 is folded and accommodated in the frame slot 2, which can make the overall structure of the working ladder more compact. The front surface of the foot pedal 3 is located in the frame slot 2 of the first frame 11, and the back is located in the frame slot 2 of the second frame 12. This precise accommodation method can minimize the space occupied by the working ladder, facilitate storage and transportation in a small working area, warehouse or transportation tool, improve the use efficiency of space, and avoid the space obstruction caused by the large volume of the working ladder.

[0060] As Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7 shown, in this embodiment, the optimized, the second frame 12 front side is provided with a handle 5.

[0061] In this technical solution, in the construction decoration engineering, the working ladder needs to be frequently switched between use and storage state. The second frame 12 front side is provided with a handle 5, which greatly simplifies the operation process of folding or opening the ladder 1. The worker no longer needs to find other force points or use complex operation methods, and only needs to hold the handle 5 easily, which can directly fold or open the ladder, save operation time and improve work efficiency. For example, during the construction process of a day, the working ladder may need to be used several times, and folding and opening operations are required before and after each use. The presence of the handle 5 makes these operations simple and fast, reducing the physical exertion of the workers. When operating, the worker can better control the force and direction by holding the handle 5, and keep the body balanced. For example, when opening the ladder, the worker can evenly pull the handle 5 to make the second frame 12 descend smoothly, avoiding the ladder from shaking and falling due to sudden force or uneven force, and ensuring the safety of the operation process.

[0062] As Figure 1 , Figure 2 and Figure 7As shown, in the embodiment, the first frame 11 and the second frame 12 are both provided with a diagonal brace 6 at the lower side, and the diagonal brace 6 is hinged to the first frame 11 and the second frame 12; a bottom frame 7 is arranged between the lower ends of the rear sides of the two first frames 11, and the bottom frame 7 is hinged to the first frame 11, and the diagonal brace 6 and the bottom frame 7 are used to support the ladder 1.

[0063] In the technical solution, in the building decoration engineering operation, the working ladder needs to bear the weight of the operation personnel and tools, and various dynamic forces may be generated in the operation process. The diagonal brace 6 is arranged at the lower side of the first frame 11 and the second frame 12, and is connected in a hinged manner, which can effectively disperse the pressure from above. The diagonal brace 6 can convert part of the vertical force into a horizontal component, which is transmitted to the ground, thereby expanding the support area of the ladder and the ground and enhancing the anti-toppling ability of the ladder in the horizontal direction. At the same time, the bottom frame 7 arranged between the lower ends of the rear sides of the two first frames 11 is also hinged to the first frame 11, and the bottom frame 7 further increases the support range of the bottom of the ladder, thereby stably supporting the ladder from the rear side, so that the ladder can maintain stability under various working conditions, thereby greatly reducing the risk of the ladder being turned over or falling during use, and ensuring the safety of the operation personnel.

[0064] The ground conditions at the construction site are complex and diverse, and may be uneven, soft, etc. The design that the diagonal brace 6 is hinged to the first frame 11 and the second frame 12 enables the diagonal brace 6 to automatically adjust the angle according to the actual ground conditions, thereby always maintaining good contact with the ground and ensuring that the ladder can be stably supported on uneven ground. The hinged design of the bottom frame 7 and the first frame 11 also has a similar function. When encountering ground undulations, the bottom frame 7 can flexibly adjust the angle to fit the ground, thereby ensuring the support stability of the entire ladder, so that the working ladder can adapt to different ground conditions and expand the use scenarios.

[0065] The diagonal brace 6 and the bottom frame 7 are hinged to the frame, and when the working ladder is not in use, the diagonal brace 6 and the bottom frame 7 can be folded and stored on the frame, thereby reducing the overall space occupied by the working ladder. This design facilitates the storage of the working ladder, for example, the working ladder can be placed in a small warehouse corner, and also facilitates the compact stacking of multiple working ladders during transportation, thereby improving the transportation efficiency and reducing the transportation cost.

[0066] Embodiment 3:

[0067] The embodiment provides a working ladder for building decoration engineering, which comprises the technical solutions of the above-mentioned embodiments and has the following technical features.

[0068] As shown in Figure 1 , Figure 5 and Figure 7As shown, in this embodiment, the optimized, also includes ladder two 8, ladder one 1 and ladder two 8 top are provided with hinge lock 9, ladder one 1 and ladder two 8 are connected through hinge lock 9, form A-shaped folding ladder.

[0069] In this technical solution, in the building decoration engineering, the structure and function requirements of ladder are different in different operation scenes. By setting ladder two 8, and connecting ladder one 1 and ladder two 8 to form A-shaped folding ladder by hinge lock 9, the use flexibility of working ladder is greatly improved. When it is needed to work in a larger space or a higher position, the A-shaped structure can be unfolded, and the stability of double-sided support is utilized, so that the operator can operate in a higher and wider area. In the narrow space, ladder one 1 and ladder two 8 can be used separately, which meets the operation requirements of narrow space and meets the diversified needs of different operation scenes in the construction process.

[0070] The structure design of A-shaped folding ladder increases the overall stability. Compared with a single ladder, double-sided support can better disperse the weight of the operator and tools, and reduce the risk of ladder falling caused by the deviation of gravity center. When connecting ladder one 1 and ladder two 8, hinge lock 9 provides reliable fixing effect, ensures that there is no relative displacement between the two ladders during use, and further enhances the safety of the overall structure, providing a more stable support platform for the operator working at a high place.

[0071] When the working ladder is not needed, by opening the hinge lock 9, ladder one 1 and ladder two 8 can be folded and stored. This detachable and foldable design effectively reduces the occupied space of working ladder during storage and transportation. Whether it is placed in the corner of the warehouse on the construction site or loaded in the transport vehicle, it can save space resources, improve space utilization, and facilitate the storage and transfer of working ladder.

[0072] As shown in Figure 1 , Figure 5 , Figure 6 and Figure 7 shown, in this embodiment, the optimized hinge lock 9 includes:

[0073] The sleeve 91 is clamped on the top of the first frame 11;

[0074] The hinge plate 92 is arranged on the sleeve 91;

[0075] The through slot 93 is arranged on the hinge plate 92;

[0076] The hollow shaft 94 penetrates the through slots 93 of the two hinge plates 92;

[0077] The connecting plate 95 is arranged at one end of the hollow shaft 94;

[0078] Lock plate 96 is provided with a clamping shaft 97, which is inserted into the hollow shaft 94, and the lock plate 96 is attached to the hinge plate 92.

[0079] In this technical solution, the primary purpose of the hinge lock 9 is to achieve a stable and reliable connection between the two ladders when the ladder one 1 and the ladder two 8 are combined into an A-shaped folding ladder. By tightly clamping the sleeve 91 on the top of the first frame 11, the subsequent components cooperate with each other to firmly fix the two ladders together. In this way, when the workers stand on the ladder to perform various operations during the building decoration engineering operation, it can ensure that the two ladders will not separate due to external forces, maintain the integrity of the A-shaped structure, and ensure the safety of the workers.

[0080] The design of the hinge lock 9 needs to meet the requirements that the ladder one 1 and the ladder two 8 can rotate flexibly around the connection point to adjust to the appropriate A-shaped angle. The hollow shaft 94 is inserted into the through slot 93 of the two hinge plates 92, which provides the condition for such rotation. Workers can conveniently adjust the included angle between the two ladders according to the actual operation scene, such as the size of the operation space, the required operation height and other factors, so that the working ladder can better adapt to different working environments and improve work efficiency. The overall structure design of the hinge lock 9 fully considers the convenience of operation. The clamping shaft 97 on the lock plate 96 can be easily inserted into the hollow shaft 94, and the lock plate 96 is attached to the hinge plate 92 to realize the locking function. When the ladders need to be combined for use, the workers can quickly complete the locking operation; and when the ladders need to be stored or used separately, the locking can also be easily released, and the operation process is simple and easy to understand, without the need for complex tools, saving operation time.

[0081] Working principle: First, the sleeve 91 is firmly clamped on the top of the first frame 11, and the clamping structure between the sleeve 91 and the first frame 11 is tight to ensure that it will not loosen during use. Then, the hinged plate 92 is arranged on the sleeve 91, which becomes the basic component for connecting other components and connecting with the second frame 12. When connecting the ladder one 1 and the ladder two 8, align the other hinged plate 92 with the hinged plate 92, so that the hollow shaft 94 can smoothly pass through the through slot 93 of the two hinged plates 92. The hollow shaft 94 serves as a connecting and rotating shaft, which connects the two hinged plates 92 together and allows them to rotate relative to each other around the hollow shaft 94. A connecting plate 95 is arranged at one end of the hollow shaft 94, which can play a certain limiting and auxiliary installation role, ensuring that the hollow shaft 94 is in the right place and will not shift axially during rotation. When it is necessary to lock the ladder one 1 and the ladder two 8 into an A-shaped structure, the clamping shaft 97 on the lock plate 96 is inserted into the end of the hollow shaft 94. Since the hollow shaft 94 is hollow, the clamping shaft 97 can smoothly enter the hollow shaft 94. With the insertion of the clamping shaft 97, the lock plate 96 gradually approaches and adheres to the hinged plate 92. At this time, the cooperation between the clamping shaft 97 and the hollow shaft 94 and the adhering friction between the lock plate 96 and the hinged plate 92 jointly prevent the rotation of the hollow shaft 94 and the hinged plate 92 connected thereto, thereby locking the two ladders at a specific angle to form a stable A-shaped structure. In this process, the tolerance fit precision between the clamping shaft 97 and the hollow shaft 94 plays a key role. The appropriate precision can not only ensure the smooth insertion of the clamping shaft 97, but also provide sufficient resistance to rotation in the locked state.

[0082] When it is necessary to adjust the angle of the ladder or separate the ladders for storage, an external force is applied to the lock plate 96 to extract the clamping shaft 97 from the hollow shaft 94. With the extraction of the clamping shaft 97, the restriction between the lock plate 96 and the hinged plate 92 is removed, and the hollow shaft 94 and the hinged plate 92 connected thereto can rotate freely around the hollow shaft 94. At this time, the operator can adjust the angle between the ladder one 1 and the ladder two 8 as needed, or separate the two ladders completely. In the process of rotation, the design of the through slot 93 provides space for the relative rotation of the hollow shaft 94 and the hinged plate 92. The size of the through slot 93 is slightly larger than the outer diameter of the hollow shaft 94, which not only ensures the flexibility of rotation, but also prevents the hollow shaft 94 from shaking excessively in the through slot 93, ensuring the stability of the entire structure during rotation.

[0083] The embodiments of the present application are described above with reference to the drawings, and the embodiments and features in the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection of the present application.

Claims

1. A construction finishing work ladder characterized by, It includes: Ladder one (1), the ladder one (1) is composed of first frame (11) and second frame (12), the first frame (11) and second frame (12) each share two, and extend from top to bottom, and the first frame (11) is higher than second frame (12); Frame slot (2) is set up on the opposite side of the first frame (11) and second frame (12), the frame slot (2) has multiple, and is evenly spaced along the length direction of the first frame (11) and second frame (12); Foot pedal (3) is hingedly arranged between the first frame (11) and second frame (12); The foot pedal (3) includes recess (31), anti-skid part (32), inclined auxiliary plate (33) and limiting plate (34), the recess (31) is arranged on the upper surface of foot pedal (3), the anti-skid part (32) is arranged in recess (31), and the surface of anti-skid part (32) is parallel to the surface of foot pedal (3);The inclined auxiliary plate (33) is arranged on the top front side of foot pedal (3), the inclined auxiliary plate (33) extends to the direction of anti-skid part (32), for assisting the worker's foot to close to the direction of anti-skid part (32);The limiting plate (34) is arranged on the top rear side of foot pedal (3), the opposite surface of the limiting plate (34) is arranged with the inclined auxiliary plate (33), the limiting plate (34) is in contact with the front side of the worker's foot, for abutting against the foot and playing the role of stable support.

2. A building finishing work ladder according to claim 1, characterised in that, The anti-skid part (32) is anti-skid line or anti-skid structure.

3. A building finishing work ladder according to claim 2, characterised in that, The anti-skid part (32) is arranged in the recess (31) of the foot pedal (3) by bolt (4) connection.

4. A building finishing work ladder according to claim 1, wherein The second frame (12) drives foot pedal (3) to be folded and accommodated in the frame slot (2), the front surface of the foot pedal (3) is located in the frame slot (2) of the first frame (11), and the back of the foot pedal (3) is located in the frame slot (2) of the second frame (12).

5. A building finishing work ladder according to claim 1, wherein The front side of the second frame (12) is provided with a handle (5).

6. A building finishing work ladder according to claim 1, wherein The lower side of the first frame (11) and the second frame (12) is provided with an inclined strut (6), and the inclined strut (6) is hinged with the first frame (11) and the second frame (12);Between the lower end of the rear side of the two first frames (11), a chassis (7) is arranged, the chassis (7) is hinged with the first frame (11), and the inclined strut (6) and the chassis (7) are used for supporting the ladder one (1).

7. A building finishing work ladder according to claim 1, wherein It also includes ladder two (8), the top of the ladder one (1) and the top of the ladder two (8) are provided with hinged lock (9), the ladder one (1) and the ladder two (8) are connected through the hinged lock (9), and an A-shaped folding ladder is formed.

8. A building finishing work ladder according to claim 7, characterised in that, The hinged lock (9) includes: Sleeve (91) is clamped on the top of the first frame (11); Hinged plate (92) is arranged on the sleeve (91); Through slot (93) is set up on the hinged plate (92); Hollow shaft (94) is inserted into the through slot (93) of the two hinged plates (92); Connecting plate (95) is arranged at one end of the hollow shaft (94); A lock plate (96) is provided with a clamping shaft (97) which is inserted into the hollow shaft (94) and is in contact with the hinged plate (92).

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