Slide rail ladder convenient to move
By designing a movable sliding ladder, the problem of existing ladders being unable to move was solved, enabling efficient and safe inspection of nuclear power unit equipment and enhancing equipment protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI FANGCHENGGANG NUCLEAR POWER
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing fixed ladders are bulky and immobile, resulting in low inspection efficiency and poor safety, making it difficult to meet the inspection needs of high-altitude equipment in nuclear power units.
Design a movable sliding ladder, including an operating platform, folding steps and locking components, as well as a traveling component that rotates on the guide rail. The ladder can be easily moved and locked through the cooperation of the folding steps and the traveling component.
It improves inspection efficiency and safety, reduces labor intensity, provides more inspection solutions, prevents unauthorized personnel from logging into the equipment, and enhances the equipment's protective capabilities.
Smart Images

Figure CN224260253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nuclear power plant inspection technology, and in particular to a movable sliding ladder. Background Technology
[0002] During the operation of a nuclear power unit, personnel need to conduct inspections of various areas. During the inspection process, since the equipment is located at a high altitude, the inspection personnel need to climb up using ladders to check and record the working status of the equipment.
[0003] However, the existing ladders are fixed and relatively bulky. When personnel want to check other areas of the equipment, they cannot move the ladder to other locations, resulting in low inspection efficiency, inconvenience for operation and inspection, and a high risk of falling off the ladder, thus reducing safety. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a sliding ladder that is easy to move.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A movable sliding ladder is constructed, comprising: an operating platform, a folding step, and a locking component, as well as a traveling component that rotates on a guide rail; the operating platform is fixedly installed on the traveling component, and a plane for carrying personnel is provided on the operating platform; the folding step is rotatably connected to one side of the operating platform, and when the folding step is unfolded, personnel can move back and forth between the lower part and the operating platform via the folding step; when the folding step is folded, the folding step covers the plane of the operating platform, and the traveling component drives the operating platform and the folding step to move on the guide rail; the locking component is installed on the operating platform, and when the folding step is unfolded, the locking component restricts the rotation of the traveling component, keeping the operating platform, the folding step, and the traveling component relatively stationary with respect to the guide rail.
[0006] Furthermore, the walking assembly includes: wheel sets and support bases, with multiple wheel sets symmetrically rotatably connected to the support bases, the support bases being fixedly installed below the operating platform, and all of the multiple wheel sets contacting the guide rails.
[0007] Furthermore, the operating platform includes a support frame fixedly installed on the support base, and a plurality of connecting rods are fixedly installed on the support frame, with gaps provided between adjacent connecting rods.
[0008] Furthermore, the folding platform includes: an extension frame rotatably connected to one side of the operating platform, and at least one set of bearing steps rotatably connected to the extension frame, with a support member installed at the bottom of the bearing steps; a first stop is provided on the extension frame; a second stop is fixedly installed on the operating platform, cooperating with the first stop, to restrict the extension frame from continuing to rotate, so that the extension frame remains stationary after rotating to be parallel to the operating platform.
[0009] Furthermore, the supporting step includes: a connecting plate and a supporting plate, one end of the connecting plate is rotatably connected to the extension frame, the other end of the connecting plate is rotatably connected to the supporting plate, and the bottom of the supporting plate is installed on the top of the support member.
[0010] Furthermore, both the connecting plate and the supporting plate are provided with multiple through holes.
[0011] Furthermore, the support member is rotatably connected to the bottom of the bearing plate, and a limiting member is installed on the bearing plate to restrict the rotation angle of the support member; after the support member is rotated open, the support member tilts outward on the bearing plate.
[0012] Furthermore, the limiting member is a stop bar fixedly installed at the bottom of the bearing plate, and the support member rotates between the stop bar and the bottom of the bearing plate.
[0013] Furthermore, the wheel assembly includes: an axle and a wheel, the axle being detachably mounted on the support base, and the wheel being rotatably connected to both ends of the axle; the wheel is frustum-shaped, with its inclined surfaces converging towards the center of the wheel from the inside out.
[0014] Furthermore, the locking assembly includes: a mounting base, a locking rod, and a locking head. The mounting base is fixedly mounted on the support base, the locking rod is connected to the mounting base via a threaded connection, and the locking head is installed between the locking rod and the wheel. When the locking rod is extended, the locking head contacts the wheel.
[0015] The following are the beneficial effects of implementing this utility model:
[0016] This application utilizes a folding platform that is rotatably connected to one side of the operating platform. When the folding platform is unfolded, personnel can move back and forth between the lower level and the operating platform using it. When the folding platform is folded, it covers the surface of the operating platform. A walking mechanism drives the operating platform and the folding platform to move along guide rails. A locking component is installed on the operating platform, restricting the rotation of the walking mechanism when the folding platform is unfolded. This makes the entire ladder easier and more convenient to move, allowing inspection personnel to move to more locations to inspect and record equipment, reducing labor intensity, improving inspection efficiency and safety, and providing inspection personnel with more inspection options. The entire movement process is easy to operate. Furthermore, after the ladder is moved, unauthorized personnel cannot access the equipment, further protecting it and improving safety. Attached Figure Description
[0017] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0018] In the attached image:
[0019] Figure 1 This is a schematic diagram of the unfolded structure of a movable sliding ladder in some embodiments of this utility model;
[0020] Figure 2 This is a schematic diagram of the folding structure of a sliding ladder that is easy to move, according to some embodiments of this utility model;
[0021] Figure 3 This is a schematic diagram of the load-bearing step in this utility model;
[0022] Figure 4 This is a schematic diagram of the wheel assembly and operating platform in this utility model;
[0023] Figure 5 This is a utility model Figure 4 A magnified view of part A in the image.
[0024] Explanation of markings in the diagram
[0025] Operating platform 1, plane 11, support frame 12, connecting rod 13, folding step 2, extension frame 21, bearing step 22, connecting upright plate 221, bearing plate 222, through hole 223, support component 23, first stop block 24, second stop block 25, limiting component 26, stop bar 261, locking assembly 3, mounting base 31, locking rod 32, locking head 33, guide rail 4, walking assembly 5, wheel set 51, wheel axle 511, wheel 512, support base 52. Detailed Implementation
[0026] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.
[0027] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0028] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0029] Please see Figures 1 to 4 The movable slide rail ladder in the first embodiment of this utility model includes: an operating platform 1, a folding step 2, and a locking component 3, as well as a walking component 5 that rotates on a guide rail 4. The operating platform 1 is fixedly installed on the walking component 5, and a plane 11 for carrying personnel is provided on the operating platform 1. The folding step 2 is rotatably connected to one side of the operating platform 1. When the folding step 2 is unfolded, personnel can move back and forth between the lower part of the platform and the operating platform 1 via the folding step 2. When the folding step 2 is folded, it covers the plane 11 of the operating platform 1. The walking component 5 drives the operating platform 1 and the folding step 2 to move on the guide rail 4. The locking component 3 is installed on the operating platform 1. When the folding step 2 is unfolded, the locking component 3 restricts the rotation of the walking component 5, so that the operating platform 1, the folding step 2, and the walking component 5 remain relatively stationary with respect to the guide rail 4.
[0030] The guide rail 4 is detachably and fixedly installed around the equipment being inspected, and can be laid out according to the main inspection directions. This application uses a folding platform 2 rotatably connected to one side of the operating platform 1. When the folding platform 2 is unfolded, personnel can move back and forth between the lower part of the platform and the operating platform 1. When the folding platform 2 is folded, it covers the plane 11 of the operating platform 1. The walking component 5 drives the operating platform 1 and the folding platform 2 to move on the guide rail 4. A locking component 3 is installed on the operating platform 1. When the folding platform 2 is unfolded, the locking component 3 restricts the rotation of the walking component 5. By rotating the folding platform 2, it unfolds on one side of the operating platform 1, forming a step on one side. Then, the operator uses the locking component 3 to restrict the rotation of the walking component 5, keeping the walking component 5 relatively stationary with respect to the guide rail 4. Inspection personnel can move to the plane 11 of the operating platform 1 via the unfolded folding platform 2 to inspect and record equipment. After completing the inspection of this location, the inspector moves to the ground via the folding platform 2, then flips the folding platform 2 onto the plane 11 of the operating platform 1. The locking component 3 then releases the restriction on the walking component 5. The inspector can then use the walking component 5 to move the operating platform 1 and the folding platform 2 along the guide rail 4, allowing the walking component 5 to move them to the location where the inspector wants to inspect the equipment. After unfolding and locking the folding platform 2, the equipment in this location is inspected and recorded. This makes moving the ladder easier and more convenient, allowing inspectors to move to more locations to inspect and record the equipment, reducing labor intensity and improving inspection efficiency and safety. Inspectors have more inspection options, and the entire movement process is easy to operate. Furthermore, after the ladder is moved, unauthorized personnel cannot access the equipment, further protecting it and improving safety.
[0031] The walking component 5 is rotatably connected to the guide rail 4, which reduces the friction between them, making it easier for inspection personnel to operate.
[0032] The operating platform 1 and the folding platform 2 can be made of aluminum alloy, which is more corrosion resistant, prevents rust formation, extends the overall service life, and further improves safety.
[0033] Please see Figures 1 to 4 In some embodiments, the walking component 5 includes: wheel sets 51 and support base 52, with multiple wheel sets 51 symmetrically rotatably connected to the support base 52, the support base 52 being fixedly installed below the operating platform 1, and multiple wheel sets 51 all in contact with the guide rail 4.
[0034] This application utilizes multiple wheel sets 51 symmetrically rotated and connected to a support base 52, which is fixedly installed below the operating platform 1. All wheel sets 51 contact the guide rail 4. The rotation of the wheel sets 51 further reduces friction with the guide rail, allowing inspection personnel to move the ladder more effortlessly. The support base 52 provides support to the operating platform 1, keeping it away from the guide rail 4 and preventing the inspector's clothing from getting caught between the wheel sets 51 and the guide rail 4, thus improving safety. The support base 52 also increases the connection strength of the operating platform 1, enabling it to withstand greater weight and thus be suitable for more usage environments and inspection personnel.
[0035] In some embodiments, the wheel set 51 can surround the guide rail 4, which can increase the connection strength between the wheel set 51 and the guide rail 4, prevent derailment, and further improve safety.
[0036] Please see Figures 1 to 4 In some embodiments, the operating platform 1 includes a support frame 12 fixedly mounted on a support base 52, and a plurality of connecting rods 13 are fixedly mounted on the support frame 12, with gaps between adjacent connecting rods 13.
[0037] This application uses a support frame 12 to fix multiple connecting rods 13, with gaps between adjacent connecting rods 13. The support frame 12 can further increase the height of the operating platform 1, improving the inspection field of vision and efficiency. The connecting rods 13 have a circular cross-section, and the upper parts of multiple connecting rods 13 are combined to form a plane 11. The circular cross-section of the connecting rods 13 can bear more weight and is less prone to deformation, further improving safety. The gaps between adjacent connecting rods 13 can reduce the overall weight of the ladder, making it easier for inspection personnel to move. The gaps can also allow impurities to leak out, preventing the plane 11 from accumulating impurities after long-term use and affecting inspection efficiency. The gaps also make it easier for inspection personnel to clean the plane 11, further reducing labor intensity.
[0038] Please see Figures 1 to 5 In some embodiments, the folding platform 2 includes: an extension frame 21 rotatably connected to one side of the operating platform 1, and at least one set of support steps 22 rotatably connected to the extension frame 21, with a support member 23 installed at the bottom of the support steps 22. A first stop 24 is provided on the extension frame 21, and a second stop 25 is fixedly installed on the operating platform 1 to cooperate with the first stop 24 and restrict the extension frame 21 from continuing to rotate, so that the extension frame 21 remains stationary after rotating to be parallel to the operating platform 1.
[0039] This application utilizes an extension frame 21 rotatably connected to one side of the operating platform 1, and at least one set of support steps 22 rotatably connected to the extension frame 21. A support member 23 is installed at the bottom of each support step 22. The extension of the extension frame 21 allows the support steps 22 to avoid the guide rail 4, enabling inspection personnel to more easily move to the operating platform 1 via the support steps 22. When multiple sets of support steps 22 are rotatably connected to the extension frame 21, they can be sequentially rotatably connected from top to bottom. By increasing the number of sets of support steps 22, the distance that inspection personnel must travel from a lower position to the operating platform 1 is increased, thus making it suitable for more usage and installation environments. This allows for inspection of equipment at higher positions, provides more inspection methods, and improves safety.
[0040] This application utilizes a first stop 24 on the extension frame 21 and a second stop 25 fixedly installed on the operating platform 1, which cooperates with the first stop 24 to restrict the extension frame 21 from rotating further, thus keeping the extension frame 21 stationary after it rotates to be parallel with the operating platform 1. The cooperation between the second stop 25 and the first stop 24 ensures that the extension frame 21 remains relatively stationary after rotating to be parallel with the operating platform 1, thereby maintaining stability of the support step 22 on the extension frame 21 after unfolding, further improving stability. During folding, rotating the extension frame 21 clockwise further folds the support step 22, making operation more convenient and labor-saving, and improving inspection efficiency.
[0041] This application uses a support member 23 installed at the bottom of the load-bearing step 22. After the load-bearing step 22 is unfolded, the support member 23 can support the load-bearing step 22 between the load-bearing step 22 and the ground, which can further improve the stability of the load-bearing step 22, facilitate the climbing and movement of inspection personnel, and improve the efficiency and safety of inspection.
[0042] Please see Figures 1 to 4 In some embodiments, the supporting step 22 includes: a connecting plate 221 and a supporting plate 222, one end of the connecting plate 221 is rotatably connected to the extension frame 21, the other end of the connecting plate 221 is rotatably connected to the supporting plate 222, and the bottom of the supporting plate 222 is mounted on the top of the support member 23.
[0043] This application utilizes a connecting plate 221, one end of which is rotatably connected to the extension frame 21, and the other end of which is rotatably connected to the support plate 222. The bottom of the support plate 222 is mounted on the top of the support member 23. The connecting plate 221 enhances the connection strength with the extension frame 21, preventing deformation and protecting inspectors from falling, thus improving safety. Rotating the support plate 222 connected to the connecting plate 221 allows for further folding of the support step 22, making it more compact and easier for inspectors to move, thus expanding its applicability. The support plate 222 serves as a step for inspectors to ascend from a lower position to the operating platform 1, preventing deformation and further enhancing safety. The support member 23, installed at the bottom of the support plate 222, allows the plate to be supported on the ground after being unfolded, improving overall stability and safety, facilitating operation by inspectors, and increasing inspection efficiency.
[0044] Please see Figures 1 to 4 In some embodiments, both the connecting plate 221 and the supporting plate 222 are provided with multiple through holes 223.
[0045] This application provides multiple through holes 223 on both the connecting plate 221 and the support plate 222. These through holes 223 reduce the weight of the connecting plate 221 and the support plate 222, making it easier for inspectors to fold or unfold the ladder. They also facilitate the movement of the ladder as a whole, making the operation more labor-saving and convenient. The through holes 223 also allow inspectors to leave behind any debris they carry, preventing it from remaining on the connecting plate 221 and the support plate 222 and affecting their movement, thus improving safety.
[0046] Please see Figures 1 to 4 In some embodiments, the support member 23 is rotatably connected to the bottom of the support plate 222, and the support plate 222 is equipped with a limiting member 26 that restricts the rotation angle of the support member 23. After the support member 23 is rotated open, the support member 23 tilts outward on the support plate 222.
[0047] This application uses a support member 23 to be rotatably connected to the bottom of the support plate 222. A limiting member 26 is installed on the support plate 222 to limit the rotation angle of the support member 23. After the support member 23 is rotated open, the support member 23 tilts outward on the support plate 222. When folded, the inspection personnel can rotate the support member 23 towards the center line of the support plate 222 so that the support member 23 and the support plate 222 fit together, further reducing the space occupied by the folding platform 2 after folding, and making it suitable for more usage environments. Using the limiting member 26, after the folding platform 2 is unfolded, the support member 23 is rotated until it comes into contact with the limiting member 26. The limiting member 26 restricts the rotation angle of the support member 23. After the support member 23 is rotated open, it tilts outward on the support plate 222. After the inspection personnel climb onto the support plate 222, the outward tilting support member 23 can provide more stable support. Under the action of the limiting member 26, it will not continue to rotate outward, preventing the support member 23 from rotating inward and folding up, further improving safety and facilitating operation by the inspection personnel.
[0048] In some embodiments, the limiting member 26 can be a pin inserted between the support member 23 and the carrier plate 222. When the limiting member 26 rotates to the appropriate position, the pin holes on the support member 23 and the carrier plate 222 are connected. Then, the limiting member 26 is operated to pass through the two pin holes to lock the rotation angle of the support member 23. This can be adjusted according to the on-site usage environment, further expanding the scope of application.
[0049] Please see Figures 1 to 4 In some embodiments, the limiting member 26 is a stop bar 261 fixedly installed at the bottom of the support plate 222, and the support member 23 rotates between the stop bar 261 and the bottom of the support plate 222.
[0050] This application uses a limiting member 26 to fix a stop bar 261 at the bottom of the support plate 222. The support member 23 rotates between the stop bar 261 and the bottom of the support plate 222. By fixing the stop bar 261 at the bottom of the support plate 222, the connection strength between the stop bar 261 and the support plate 222 is increased, and the support member 23 and the limiting member 26 can withstand greater gravity. This is suitable for different inspection personnel and further improves safety.
[0051] Please see Figures 1 to 4 In some embodiments, the wheel assembly 51 includes an axle 511 and a wheel 512. The axle 511 is detachably mounted on a support 52. The wheel 512 is rotatably connected to both ends of the axle 511. The wheel 512 is frustum-shaped, and the inclined surface converges from the inside out towards the center of the wheel 512.
[0052] This application utilizes axle 511 for detachable mounting on support base 52. Wheels 512 are rotatably connected to both ends of axle 511. Wheels 512 are frustum-shaped with their inclined surfaces converging towards their center from the inside out. Wheels 512 can roll on guide rails 4. The frustum-shaped design and converging inclined surfaces ensure that the wheels 512 are properly engaged between the two guide rails 4, preventing the walking assembly 5 from detaching from the guide rails 4 when traveling on curves. This improves safety, facilitates operation by inspection personnel, and is applicable to a wider range of guide rail installation environments. Furthermore, when inspecting the entire ladder, the ladder can be removed from the guide rails 4 for easy maintenance and improved efficiency.
[0053] Please see Figures 1 to 4 In some embodiments, the locking assembly 3 includes a mounting base 31, a locking rod 32, and a locking head 33. The mounting base 31 is fixedly mounted on the support base 52. The locking rod 32 is connected to the mounting base 31 by a threaded pair. The locking head 33 is installed between the locking rod 32 and the wheel 512. When the locking rod 32 is extended, the locking head 33 contacts the wheel 512.
[0054] This application uses a mounting base 31 to fix the ladder onto a support base 52. A locking rod 32 is threaded onto the mounting base 31. A locking head 33 is installed between the locking rod 32 and the wheel 512. When the locking rod 32 extends, the locking head 33 contacts the wheel 512. After the inspector unfolds the folding platform 2, they rotate the locking rod 32, causing the locking head 33 to move closer to the wheel 512. The friction generated by the contact between the locking head 33 and the wheel 512 restricts the rotation of the wheel 512, further improving the safety of the inspector during climbing. When the inspector folds the folding platform 2 onto the operating platform 1, they rotate the locking rod 32 in the opposite direction, causing the locking head 33 to separate from the wheel 512. Then, the walking assembly 5 moves the entire folded ladder. Operating the locking assembly 3 is convenient and labor-saving, saving locking and unlocking time and improving inspection efficiency.
[0055] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.
Claims
1. A movable sliding ladder, characterized in that, include: Operating platform (1), folding footboard (2) and locking assembly (3), and traveling assembly (5) rotating on guide rail (4); The operating platform (1) is fixedly installed on the walking component (5), and the operating platform (1) is provided with a plane (11) for carrying personnel; The folding platform (2) is rotatably connected to one side of the operating platform (1). When the folding platform (2) is unfolded, personnel can move back and forth between the lower part and the operating platform (1) via the folding platform (2). When the folding step (2) is folded, the folding step (2) covers the plane (11) of the operating platform (1), and the operating platform (1) and the folding step (2) are driven to move on the guide rail (4) by the walking component (5); The locking component (3) is installed on the operating platform (1). When the folding step (2) is unfolded, the locking component (3) restricts the rotation of the walking component (5) so that the operating platform (1), the folding step (2) and the walking component (5) remain relatively stationary with respect to the guide rail (4).
2. The easily movable slide rail ladder according to claim 1, characterized in that, The walking assembly (5) includes: wheel sets (51) and support base (52). Multiple wheel sets (51) are symmetrically rotatably connected to the support base (52). The support base (52) is fixedly installed below the operating platform (1). Multiple wheel sets (51) are in contact with the guide rail (4).
3. The easily movable slide rail ladder according to claim 2, characterized in that, The operating platform (1) includes a support frame (12) fixedly installed on the support base (52), and a plurality of connecting rods (13) are fixedly installed on the support frame (12), with gaps between adjacent connecting rods (13).
4. The easily movable slide rail ladder according to claim 1, characterized in that, The folding platform (2) includes: an extension frame (21) rotatably connected to one side of the operating platform (1), and at least one set of bearing steps (22) rotatably connected to the extension frame (21), with a support member (23) installed at the bottom of the bearing step (22); a first stop (24) is provided on the extension frame (21); a second stop (25) is fixedly installed on the operating platform (1) to cooperate with the first stop (24) and restrict the extension frame (21) from continuing to rotate, so that the extension frame (21) remains stationary after rotating to be parallel to the operating platform (1).
5. The easily movable slide rail ladder according to claim 4, characterized in that, The supporting step (22) includes a connecting plate (221) and a supporting plate (222). One end of the connecting plate (221) is rotatably connected to the extension frame (21), and the other end of the connecting plate (221) is rotatably connected to the supporting plate (222). The bottom of the supporting plate (222) is installed on the top of the support member (23).
6. The easily movable slide rail ladder according to claim 5, characterized in that, Both the connecting plate (221) and the bearing plate (222) are provided with multiple through holes (223).
7. The easily movable slide rail ladder according to claim 5, characterized in that, The support member (23) is rotatably connected to the bottom of the bearing plate (222), and a limiting member (26) is installed on the bearing plate (222) to limit the rotation angle of the support member (23); after the support member (23) is rotated open, the support member (23) tilts outward on the bearing plate (222).
8. The easily movable slide rail ladder according to claim 7, characterized in that, The limiting member (26) is a stop bar (261) fixedly installed at the bottom of the bearing plate (222), and the support member (23) rotates between the stop bar (261) and the bottom of the bearing plate (222).
9. The easily movable slide rail ladder according to claim 2, characterized in that, The wheel assembly (51) includes: an axle (511) and a wheel (512). The axle (511) is detachably mounted on the support seat (52), and the wheel (512) is rotatably connected to both ends of the axle (511). The wheel (512) is frustum-shaped, and the inclined surface converges from the inside to the center of the wheel (512).
10. The easily movable slide rail ladder according to claim 9, characterized in that, The locking assembly (3) includes a mounting base (31), a locking rod (32), and a locking head (33). The mounting base (31) is fixedly mounted on the support base (52). The locking rod (32) is connected to the mounting base (31) via a threaded connection. The locking head (33) is installed between the locking rod (32) and the wheel (512). When the locking rod (32) is extended, the locking head (33) contacts the wheel (512).