Climbing operation ladder applied to net rack construction
By designing a climbing operation ladder for grid construction, the safety hazards and inconvenience of operators in grid construction are solved, and the effect of improving construction safety and efficiency is achieved.
Patent Information
- Application Number
- CN202421088498.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-17
AI Technical Summary
During the construction of the grid frame, operators need to frequently climb up and operate. Traditional methods have safety hazards and inconvenient operation problems, and the gantry rack is difficult to carry in the grid frame, which is a waste of time.
A climbing work ladder is designed, including a first ladder frame, a second ladder frame, a pedal plate, a connecting rod, a first limit rod and a second limit rod. Through the combination of these components, a ladder can be hung on the grid frame to provide a stable stand surface and improve the safety of workers during construction.
By providing a stable stand surface, the climbing ladder significantly improves the safety of workers during construction, reduces the problems of inconvenience and time waste, and improves construction efficiency.
Smart Images
Figure CN222542341U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of construction engineering, and in particular to a high-altitude working ladder used in grid construction. Background Art
[0002] When assembling and welding the grid, operators need to go to the node position to operate. After the upper and lower chord balls of each unit grid are connected by rods, they are generally in the shape of a quadrangular pyramid, and each side is a triangle. In the traditional construction method, operators generally straddle the rods, which is inconvenient and unsafe; or use a gantry frame for operation, but due to the influence of the lower chord rod of the grid, the gantry frame is also difficult to move inside the grid, which is very time-consuming. Utility Model Content
[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a climbing work ladder used in grid construction.
[0004] The present application discloses a climbing work ladder used in grid construction, the climbing work ladder may include: a first ladder frame and a second ladder frame, the first ladder frame is located on the circumferential outer side of the second ladder frame and is spaced apart from the second ladder frame, the first ladder frame includes a first limit end away from the ground, and the second ladder frame includes a second limit end away from the ground; a plurality of stepping plates, the plurality of stepping plates are spaced apart in the extension direction of the first ladder frame, the stepping plate is located between the first ladder frame and the second ladder frame, one end of the stepping plate is connected to the first ladder frame, and the other end is connected to the second ladder frame; a connecting rod, the connecting rod extends in the direction from the first ladder frame to the second ladder frame, the first limit end and the second limit end They are respectively connected to the connecting rod, the connecting rod includes a first connecting end and a second connecting end relative to each other, the first connecting end is close to the first limiting end, and the second connecting end is close to the second limiting end; a first limiting rod, the fixed end of the first limiting rod is connected to the first connecting end, the free end of the first limiting rod extends toward the second connecting end and is spaced apart from the connecting rod; a second limiting rod, the fixed end of the second limiting rod is connected to the second connecting end, the free end of the second limiting rod extends toward the first connecting end and is spaced apart from the connecting rod; wherein the extension direction of the first ladder frame and the extension direction of the second ladder frame define a first plane, and the first limiting rod and the second limiting rod both intersect with the first plane.
[0005] In this way, the climbing work ladder provided in the present application is hung on the grid by setting a connecting rod, a first limit rod and a second limit rod, which is convenient for workers to work on the grid, provides a standing surface for workers, and greatly increases the safety of workers during the construction process.
[0006] In some embodiments of the present application, the aerial work ladder includes: a first connecting rod, one end of the first connecting rod is connected to the first connecting end, and the other end is connected to the first limiting rod, and the extension direction of the first connecting rod intersects with the first plane.
[0007] In some embodiments of the present application, the first ladder frame includes a first main section and a first extension section, one end of the first main section is connected to the connecting rod, and the other end is detachably connected to the first extension section; the second ladder frame includes a second main section and a second extension section, one end of the second main section is connected to the connecting rod, and the other end is detachably connected to the second extension section.
[0008] In some embodiments of the present application, the first main body segment is connected to the first extension segment by a pin.
[0009] In some embodiments of the present application, one end of the pedal is detachably connected to the first ladder frame, and the other end is rotatably connected to the second ladder frame.
[0010] In some embodiments of the present application, the aerial work ladder further includes: a first protection rod, the first protection rod is located between the connecting rod and the free end of the first limiting rod, and one end of the first protection rod is rotatably connected to the connecting rod.
[0011] In some embodiments of the present application, the connecting rod is provided with a first rotating shaft, one end of the first protective rod is provided with a first rotating hole, and the first rotating shaft is passed through the first rotating hole; the climbing work ladder also includes: a first torsion spring, the first torsion spring is sleeved on the first rotating shaft, the first torsion spring includes a first pin and a second pin, the first pin abuts against the connecting rod, and the second pin abuts against the first protective rod; when the torsion spring is in an untwisted state, the free end of the first protective rod extends toward the free end of the first limiting rod.
[0012] In some embodiments of the present application, the aerial work ladder further includes: a second protection rod, the second protection rod is located between the connecting rod and the free end of the second limiting rod, and one end of the second protection rod is rotatably connected to the connecting rod.
[0013] In some embodiments of the present application, the first ladder frame also includes a first ground-contacting end close to the ground; the aerial work ladder includes: a first anti-slip sleeve, and the first anti-slip sleeve is mounted on the first ground-contacting end.
[0014] In some embodiments of the present application, the stepping plate is engaged with the first ladder frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0017] Figure 1 A schematic diagram of a climbing work ladder provided in some embodiments of the present application;
[0018] Figure 2 for Figure 1 A schematic diagram of the second ladder frame and the stepping plate shown in ;
[0019] Figure 3 Schematic diagram of a climbing work ladder provided in some other embodiments of the present application;
[0020] Figure 4 for Figure 1 Exploded view of point A shown in .
[0021] Reference numerals:
[0022] 100. Ladder for climbing work;
[0023] 110, first ladder frame; 111, first limit end; 112, first ground contact end; 113, first main body section; 114, first extension section; 115, first plug-in end; 116, second plug-in end;
[0024] 120, second ladder frame; 121, second limit end; 122, second ground-contacting end;
[0025] 130. Step on the pedal;
[0026] 140. Connecting rod; 141. First connecting end; 142. Second connecting end;
[0027] 150. A first limiting rod; 151. A first protecting rod;
[0028] 160. Second limiting rod; 161. Second protection rod;
[0029] 170. A first connecting rod;
[0030] 180, second connecting rod;
[0031] 191, first anti-slip cover; 192, second anti-slip cover;
[0032] 201. Stud; 202. Latch. DETAILED DESCRIPTION
[0033] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.
[0034] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. In addition, the directional terms mentioned in the embodiments of the present application, such as "inside", "outside", etc., are only references to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.
[0036] Currently, operators need to go to the node position to operate when assembling and welding the grid. After the upper and lower chord balls of each unit grid are connected by rods, they are generally in the shape of a quadrangular pyramid, and each side is a triangle. In the traditional construction method, operators generally straddle the rods, which is inconvenient and unsafe; or use a gantry frame for operation, but due to the influence of the lower chord rod of the grid, the gantry frame is also difficult to move inside the grid, which is very time-consuming.
[0037] In order to solve the above technical problems, the present application provides a climbing work ladder 100 for grid construction, see Figure 1 and Figure 2 , Figure 1 A schematic diagram of a climbing work ladder 100 provided in some embodiments of the present application; Figure 2 for Figure 1 Schematic diagram of the second ladder frame 120 and the pedal board 130 shown in the figure; the climbing work ladder 100 may include: a first ladder frame 110, a second ladder frame 120, a plurality of pedal boards 130, a connecting rod 140, a first limiting rod 150 and a second limiting rod 160.
[0038] The first ladder frame 110 is disposed on the outer side of the second ladder frame 120 in the circumferential direction and is spaced apart from the second ladder frame 120. For details, please refer to Figure 1The first ladder frame 110 and the second ladder frame 120 are arranged side by side in the left-right direction to form the frame of the climbing work ladder 100. The first ladder frame 110 and the second ladder frame 120 can be made of metal to ensure the overall strength and rigidity of the climbing work ladder 100. The first ladder frame 110 can include a first limiting end 111 away from the ground and a first ground-reaching end 112 close to the ground, and the second ladder frame 120 can include a second limiting end 121 away from the ground and a second ground-reaching end 122 close to the ground.
[0039] Please continue reading Figure 1 and Figure 2 A plurality of pedal boards 130 are arranged at intervals in the extension direction of the first ladder frame 110. The pedal boards 130 are used to provide a workbench for workers, that is, to provide a standing position for workers. By setting up a plurality of pedal boards 130, workbenches at different heights are provided for workers. The pedal board 130 is located between the first ladder frame 110 and the second ladder frame 120. One end of the pedal board 130 is connected to the first ladder frame 110, and the other end is connected to the second ladder frame 120.
[0040] The connecting rod 140 is disposed in a direction (eg, from the first ladder frame 110 to the second ladder frame 120) Figure 1 The first limit end 111 and the second limit end 121 are respectively connected to the connecting rod 140, and the connecting rod 140 includes a first connection end 141 and a second connection end 142 opposite to each other, and the first connection end 141 is close to the first limit end 111, wherein "close" means that the distance between the first connection end 141 and the first limit end 111 is smaller than the distance between the first connection end 141 and the second limit end 121, and the second connection end 142 is close to the second limit end 121, wherein "close" means that the distance between the second connection end 142 and the second limit end 121 is smaller than the distance between the first connection end 141 and the first limit end 111.
[0041] The fixed end of the first limiting rod 150 is connected to the first connecting end 141, the free end of the first limiting rod 150 extends toward the second connecting end 142 and is spaced apart from the connecting rod 140, the fixed end of the second limiting rod 160 is connected to the second connecting end 142, the free end of the second limiting rod 160 extends toward the first connecting end 141, wherein the extension direction of the first ladder frame 110 and the extension direction of the second ladder frame 120 define a first plane, and the first limiting rod 150 and the second limiting rod 160 both intersect with the first plane, that is, the first limiting rod 150 is not coplanar with the first plane, and the second limiting rod 160 is not coplanar with the first plane.
[0042] During the use of the climbing work ladder 100, the first limit rod 150, the second limit rod 160 and the connecting rod 140 are firstly set on the grid by the upper ball sleeve, so that the two side frames of the grid are one passed through the first limit rod 150 and the connecting rod 140, and the other passed through the second limit rod 160 and the connecting rod 140. Then the climbing work ladder 100 is moved downward. Since one side of the grid is formed into a triangle, the distance between the two side frames becomes larger and larger in the direction from top to bottom. When the climbing work ladder 100 is moved downward, the two side frames are respectively abutted against the first limit rod 150, the second limit rod 160 and the connecting rod 140, thereby achieving the fixation between the climbing work ladder 100 and the grid.
[0043] In this way, by setting the connecting rod 140, the first limit rod 150 and the second limit rod 160, the aerial work ladder 100 is hung on the grid, which is convenient for workers to work on the grid. The pedal 130 provides a standing surface for the workers, greatly increasing the safety of the workers during the construction process.
[0044] In some embodiments of this application, please continue to refer to Figure 1 and Figure 2 And refer to Figure 3 , Figure 3 Schematic diagram of a climbing work ladder 100 provided for other embodiments of the present application. The climbing work ladder 100 may also include a first connecting rod 170, one end of the first connecting rod 170 is connected to the first connecting end 141, and the other end is connected to the first limiting rod 150, and the extension direction of the first connecting rod 170 intersects with the first plane. In other words, the extension direction of the first connecting rod 170 is not coplanar with the first plane. Therefore, by setting the first connecting rod 170, the first limiting rod 150 and the connecting rod 140 are spaced apart, ensuring that the frame of the grid can be inserted between the first limiting rod 150 and the connecting rod 140.
[0045] Specifically, the first connecting rod 170 is substantially perpendicular to the first plane, wherein substantially perpendicular means that the angle between the first connecting rod 170 and the first plane is greater than or equal to 80° and less than or equal to 100°. The first limiting rod 150 is arranged parallel to the connecting rod 140, and the connection positions between the first connecting rod 170, the first limiting rod 150 and the connecting rod 140 are all connected by arc transition.
[0046] In the specific implementation process, please refer to Figure 2 The extension direction of the first connecting rod 170 and the extension direction of the connecting rod 140 jointly define a second plane, the second plane is parallel to the horizontal plane, and the angle between the first plane and the horizontal plane is greater than or equal to 45° and less than or equal to 60°. In this way, the stability of the aerial work ladder 100 when it is set on the ground can be guaranteed.
[0047] For further information, please refer to Figure 3 The climbing work ladder 100 may further include a second connecting rod 180, one end of which is connected to the second connecting end 142, and the other end is connected to the second limiting rod 160, and the extension direction of the second connecting rod 180 intersects with the first plane. Thus, by providing the second connecting rod 180, the second limiting rod 160 is spaced apart from the connecting rod 140, so that the frame of the grid can be inserted between the second limiting rod 160 and the connecting rod 140.
[0048] Specifically, the second connecting rod 180 is substantially perpendicular to the first plane, wherein substantially perpendicular means that the angle between the second connecting rod 180 and the first plane is greater than or equal to 80° and less than or equal to 100°. The second limiting rod 160 is arranged parallel to the connecting rod 140, and the connection positions between the second connecting rod 180, the second limiting rod 160 and the connecting rod 140 are all connected by arc transition.
[0049] In some embodiments of this application, please refer to Figure 1 and Figure 2 One end of the pedal board 130 is detachably connected to the first ladder frame 110, and the other end is rotatably connected to the second ladder frame 120. It should be noted that, taking the number of pedal boards 130 as an example, when a worker is working, when the height of the fourth pedal board 130 from bottom to top meets the working height requirement, the upper three pedal boards 130 can be rotated to avoid the worker's body and avoid affecting the worker's work.
[0050] Further, the pedal 130 includes a pedal state (e.g. Figure 2 ) and the stowed state (eg Figure 2 When the pedal 130 is in the stepped state, the pedal 130 is connected to the first ladder frame 110 and the second ladder frame 120 respectively to provide a working platform for the worker. When the pedal 130 is in the retracted state, the extending direction of the pedal 130 can be parallel to the extending direction of the second ladder frame 120, and while avoiding the torso of the worker, a position for the worker to lean on can be provided to provide support for the worker's construction.
[0051] The rotation connection between the pedal board 130 and the second ladder frame 120 can be a damped rotation, that is, the pedal board 130 can stop at any position between the pedal state and the storage state.
[0052] In some embodiments of this application, please continue to refer to Figure 2In the direction from front to back of the aerial work ladder 100, the pedal board 130 is tilted downward, that is, when the worker is working, the worker's torso can contact the surface of the pedal board 130 on the work platform, and the worker can apply a thrust to the pedal board 130 through the torso, so that the pedal board 130 is switched from the stepped state to the storage state.
[0053] In some embodiments of this application, please refer to Figure 1 and Figure 2 The climbing work ladder 100 may further include a first anti-slip sleeve 191 , which is sleeved on the first ground-affecting end 112 to prevent sliding between the first ground-affecting end 112 and the ground, thereby improving the safety performance of the climbing work ladder 100 .
[0054] For further information, please refer to Figure 1 and Figure 2 The climbing work ladder 100 may further include a second anti-slip sleeve 192 , which is sleeved on the second ground-aft end 122 to avoid shaking between the second ground-aft end 122 and the ground, thereby improving the safety performance of the climbing work ladder 100 .
[0055] In some embodiments of this application, please refer to Figure 3 The climbing work ladder 100 may further include a first protection rod 151, which is located between the connecting rod 140 and the free end of the first limiting rod 150, and one end of the first protection rod 151 is rotatably connected to the connecting rod 140. It should be noted that when the frame of the grid enters between the connecting rod 140 and the first limiting rod 150, the first protection rod 151 avoids the frame by rotating. When the position of the frame of the grid is fixed, the first protection rod 151 rotates between the connecting rod 140 and the free end of the first limiting rod 150, so that the first protection rod 151, the first limiting rod 150 and the connecting rod 140 surround the frame of the grid to prevent the frame of the grid from falling off.
[0056] Specifically, a first rotating shaft is provided on the connecting rod 140, and a first rotating hole is provided at one end of the first protective rod 151. The first rotating shaft is passed through the first rotating hole. The aerial work ladder 100 can also include a first torsion spring, which is sleeved on the first rotating shaft. The first torsion spring includes a first pin and a second pin. The first pin abuts against the connecting rod 140, and the second pin abuts against the first protective rod 151. When the torsion spring is in an untwisted state, the free end of the first protective rod 151 extends toward the free end of the first limiting rod 150.
[0057] Thus, when the frame of the grid applies pressure to the first protection rod 151, the first protection rod 151 rotates to allow the frame of the grid to enter between the first limiting rod 150 and the connecting rod 140, and when the frame of the grid slides over the first protection rod 151, under the action of the first torsion spring, the first protection rod 151 rotates to a direction in which its free end faces the free end of the first limiting rod 150. Thus, the frame of the grid is further prevented from falling off.
[0058] In some embodiments of this application, please continue to refer to Figure 3 The climbing work ladder 100 may further include a second protection rod 161 , which is located between the connecting rod 140 and the free end of the first limiting rod 150 , and one end of the second protection rod 161 is rotatably connected to the connecting rod 140 .
[0059] In some embodiments of this application, please refer to Figure 4 , Figure 4 for Figure 1 The exploded view at A shown in FIG. The first ladder frame 110 may include a first main body section 113 and a first extension section 114, one end of the first main body section 113 is connected to the connecting rod 140, and the other end is detachably connected to the first extension section 114; the second ladder frame 120 may include a second main body section and a second extension section, one end of the second main body section is connected to the connecting rod 140, and the other end is detachably connected to the second extension section. Therefore, by providing a detachable first extension section 114 and a detachable second extension section, the height of the climbing work ladder 100 can be adjusted to meet the requirements of different working heights.
[0060] It is understandable that there can be multiple first extension sections 114 with different lengths to accommodate different working heights of the climbing work ladder 100. There can be multiple second extension sections with different lengths to accommodate different working heights of the climbing work ladder 100.
[0061] In some embodiments of this application, please continue to refer to Figure 4 The first main section 113 and the first extension section 114 are connected by a pin. Specifically, the first extension section 114 includes a first plug-in end 115 facing the first main section 113, and the first main section 113 includes a second plug-in end 116 facing the first extension section 114. The radial dimension of the first plug-in end 115 is smaller than the radial dimension of the second plug-in end 116. The first plug-in end 115 is provided with a first plug-in hole, and the second plug-in end 116 is provided with a second plug-in hole. After the first plug-in end 115 is inserted into the second plug-in end 116, the stud 201 passes through the first plug-in hole and the second plug-in hole in sequence and is fixed by the pin 202, thereby realizing a detachable connection between the first main section 113 and the first extension section 114.
[0062] In some other embodiments of the present application, the first main section 113 and the first extension section 114 can be detachably connected by threaded engagement.
[0063] In some other embodiments of the present application, the first main section 113 and the first extension section 114 can be detachably connected by snap-fitting.
[0064] Furthermore, the second main section and the second extension section are connected by a pin. Specifically, the second extension section includes a third plug-in end facing the second main section, and the second main section includes a fourth plug-in end facing the second extension section. The radial dimension of the third plug-in end is smaller than the radial dimension of the fourth plug-in end. The third plug-in end can be plugged into the fourth plug-in end. The third plug-in end is provided with a third plug-in hole, and the fourth plug-in end is provided with a fourth plug-in hole. After the third plug-in end is plugged into the fourth plug-in end, a stud is passed through the third plug-in hole and the fourth plug-in hole in sequence and then fixed by a pin, thereby realizing a detachable connection between the second main section and the second extension section.
[0065] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0066] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A climbing work ladder used in grid construction, characterized in that: include: a first ladder frame and a second ladder frame, wherein the first ladder frame is located outside the circumference of the second ladder frame and is spaced apart from the second ladder frame, the first ladder frame includes a first limiting end away from the ground, and the second ladder frame includes a second limiting end away from the ground; A plurality of stepping plates, the plurality of stepping plates are arranged at intervals in the extending direction of the first ladder frame, the stepping plates are located between the first ladder frame and the second ladder frame, one end of the stepping plates is connected to the first ladder frame, and the other end of the stepping plates is connected to the second ladder frame; A connecting rod, the connecting rod extending in a direction from the first ladder frame to the second ladder frame, the first limiting end and the second limiting end are respectively connected to the connecting rod, the connecting rod includes a first connecting end and a second connecting end opposite to each other, the first connecting end is close to the first limiting end, and the second connecting end is close to the second limiting end; a first limiting rod, wherein a fixed end of the first limiting rod is connected to the first connecting end, and a free end of the first limiting rod extends toward the second connecting end and is spaced apart from the connecting rod; a second limiting rod, wherein a fixed end of the second limiting rod is connected to the second connecting end, and a free end of the second limiting rod extends toward the first connecting end and is spaced apart from the connecting rod; The extending direction of the first ladder frame and the extending direction of the second ladder frame define a first plane, and the first limiting rod and the second limiting rod both intersect with the first plane.
2. The high-altitude working ladder used for grid construction according to claim 1 is characterized in that: include: A first connecting rod, one end of the first connecting rod is connected to the first connecting end, and the other end is connected to the first limiting rod, and an extending direction of the first connecting rod intersects with the first plane.
3. The climbing work ladder used for grid construction according to claim 1 is characterized in that: The first ladder frame comprises a first main section and a first extension section, one end of the first main section is connected to the connecting rod, and the other end is detachably connected to the first extension section; The second ladder frame includes a second main body section and a second extension section. One end of the second main body section is connected to the connecting rod, and the other end is detachably connected to the second extension section.
4. The climbing work ladder used for grid construction according to claim 3 is characterized in that: The first main body section is pin-connected to the first extension section.
5. The climbing work ladder used for grid construction according to claim 1 is characterized in that: One end of the pedal is detachably connected to the first ladder frame, and the other end is rotatably connected to the second ladder frame.
6. The climbing work ladder used for grid construction according to claim 1 is characterized in that: Also includes: A first protection rod, wherein the first protection rod is located between the connecting rod and the free end of the first limiting rod, and one end of the first protection rod is rotatably connected to the connecting rod.
7. The climbing work ladder used for grid construction according to claim 6 is characterized in that: The connecting rod is provided with a first rotating shaft, one end of the first protection rod is provided with a first rotating hole, and the first rotating shaft is passed through the first rotating hole; The aerial work ladder also includes: a first torsion spring, which is sleeved on the first rotating shaft, and includes a first pin and a second pin, the first pin abuts against the connecting rod, and the second pin abuts against the first protective rod; when the torsion spring is in an untwisted state, the free end of the first protective rod extends toward the free end of the first limiting rod.
8. The climbing work ladder used for grid construction according to claim 1 is characterized in that: Also includes: A second protection rod, wherein the second protection rod is located between the connecting rod and the free end of the second limiting rod, and one end of the second protection rod is rotatably connected to the connecting rod.
9. The climbing work ladder used for grid construction according to claim 1, characterized in that: The first ladder frame also includes a first ground-contacting end close to the ground; The aerial work ladder comprises: a first anti-skid sleeve, and the first anti-skid sleeve is arranged on the first ground-affecting end.
10. The high-altitude working ladder used for grid construction according to claim 5, characterized in that: The stepping plate is clamped with the first ladder frame.