Ladder and working machine

Abstract

The utility model relates to the technical field of mechanical equipment, and discloses a ladder and an operation machine. The ladder comprises a fixed ladder, a turnover ladder and a hinge assembly; a concave part is formed on the fixed ladder stand; the overturning ladder stand is used for being switched between an overturning state and an unfolding state, and in the overturning state, the overturning ladder stand abuts against the sunken part; in the unfolding state, the overturning ladder stand is separated from the sunken part; the hinge assembly comprises a hinge piece and a hinge hole. One of the fixed ladder stand and the turnover ladder stand is provided with a hinge hole, and the other one is connected with the hinge piece; the hinging piece and the hinging hole are rotationally matched in the first direction, so that the overturning ladder stand is switched between an overturning state and an unfolding state; the hinge piece and the hinge hole are in sliding fit in the climbing direction, so that the overturning ladder stand abuts against or is separated from the sunken part, and the climbing direction intersects with the first direction. The ladder can solve the problems that the distance between the ladder and the ground cannot be shortened when needed and the safe distance between the ladder and the ground cannot be kept when not needed in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a ladder and an operating machine. Background Art

[0002] Mining machinery, such as tunnel boring machines, are relatively high, so personnel usually need to use ladders to get up and down. Currently, ladders are fixed to vehicles to solve the problem of needing to carry ladders back and forth. Due to the limitations of the overall structure of the tunnel boring machine, the bottom of the ladder is required to be at least a safe distance from the ground. However, if the safety distance is too high, it is not convenient for personnel to board the vehicle. Therefore, how to provide a ladder that can shorten the distance to the ground when needed and maintain a safe distance from the ground when not needed is an urgent problem that the industry needs to solve. Utility Model Content

[0003] The utility model provides a ladder and an operating machine, which are used to solve the problem that the ladder in the prior art cannot shorten the distance from the ground when needed and cannot maintain a safe distance from the ground when not needed.

[0004] The first aspect of the utility model provides a ladder, comprising:

[0005] A fixed ladder is formed with a recessed portion;

[0006] A flip ladder, the flip ladder is used to switch between a flip state and an unfolded state, in the flip state, the flip ladder abuts against the recessed portion; in the unfolded state, the flip ladder is separated from the recessed portion;

[0007] A hinge assembly, the hinge assembly comprising a hinge and a hinge hole; one of the fixed ladder and the flip ladder is provided with the hinge hole, and the other is connected to the hinge;

[0008] The hinged part and the hinged hole rotate and cooperate with each other around a first direction, so that the flip ladder can be switched between the flip state and the unfolded state; the hinged part and the hinged hole slide and cooperate along a climbing direction, so that the flip ladder can abut against or separate from the recessed portion, and the climbing direction intersects with the first direction.

[0009] According to the ladder provided by the utility model, the fixed ladder comprises:

[0010] The first ladder assembly is provided with the hinge hole;

[0011] A locking member is arranged along the climbing direction with the hinge hole, the locking member is detachably connected to the first ladder assembly, and the locking member is formed with the recessed portion.

[0012] According to the ladder provided by the utility model, the first ladder assembly includes:

[0013] A first ladder body, detachably connected to the locking member;

[0014] At least two first support members are arranged along the first direction and are both connected to the first ladder body; the first support members are provided with the hinge holes; and the flip ladder is arranged between the two first support members.

[0015] According to the ladder provided by the utility model, the flip ladder comprises:

[0016] A second ladder body, abutting against or separating from the recessed portion;

[0017] At least two second connecting plates are arranged along the first direction and are connected to the second ladder body; the second connecting plate is provided with a mounting hole along the first direction, one end of the hinge is connected to the mounting hole, and the other end is limited to the hinge hole.

[0018] The ladder provided by the utility model also includes:

[0019] A handrail is arranged at one end of the fixed ladder away from the flip ladder.

[0020] According to the ladder provided by the utility model, the handrail comprises:

[0021] A handrail body, arranged on one side of the fixed ladder;

[0022] A reinforcing connector has one end connected to the handrail body and the other end connected to the other side of the fixed ladder.

[0023] The ladder provided by the utility model further includes an installation assembly, and the installation assembly includes:

[0024] The first mounting plate is connected to the fixed ladder; in the unfolded state, the first mounting plate abuts against the flip ladder to support the flip ladder.

[0025] According to the ladder provided by the utility model, the installation assembly also includes:

[0026] The second mounting plate is connected to the first mounting plate, and the second mounting plate and the first mounting plate form an angle.

[0027] A second aspect of the utility model provides a working machine, comprising a working machine body and any one of the ladders described above; the ladder is connected to the working machine body.

[0028] According to the operating machinery provided by the utility model, the operating machinery includes a tunneling machine, a pump truck or a crane.

[0029] The ladder and operating machine provided by the utility model are formed with a recessed portion on the fixed ladder, and a hinge assembly is provided, wherein the hinge assembly includes a hinge and a hinge hole; one of the fixed ladder and the flip ladder is provided with a hinge hole, and the other is connected to the hinge, and the hinge rotates around the first direction in the hinge hole to cooperate, so that the flip ladder can be switched between a flip state and an unfolded state to adjust the distance between the lowest end of the ladder and the ground, thereby solving the problem that the ladder in the prior art cannot shorten the distance from the ground when needed and maintain a safe distance from the ground when not needed. Specifically, when needed, the flip ladder is in an unfolded state to extend the length of the ladder and shorten the distance between the lowest end of the ladder and the ground, so as to facilitate vehicle personnel to board; when not needed, the flip ladder is in a flipped state to shorten the length of the ladder and maintain a safe distance between the lowest end of the ladder and the ground.

[0030] Furthermore, the hinge part and the hinge hole slide in cooperation along the climbing direction, so that the flip ladder can move along the climbing direction relative to the fixed ladder, thereby achieving the abutment or separation of the flip ladder and the recessed portion, so that the flip ladder can be suspended in the recessed portion by gravity in the flipped state, avoiding the flip ladder from automatically switching from the flipped state to the unfolded state, thereby improving the safety of use.

[0031] Because the work machine includes the ladder of any of the above embodiments, at least the above advantages are possessed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 This is one of the three-dimensional structural schematic diagrams of the ladder provided by the utility model;

[0034] Figure 2 This is the second schematic diagram of the three-dimensional structure of the ladder provided by the utility model;

[0035] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0036] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0037] Figure 5 is hidden Figure 3 Schematic diagram of the structure after connecting the top rod.

[0038] Reference numerals:

[0039] 100, fixed ladder; 110, first ladder assembly; 120, locking member; 111, first ladder body; 112, first support member; 1111, first vertical rod; 1112, first footrest member; 101, recessed portion;

[0040] 200, flip ladder; 210, second ladder body; 220, second connecting plate; 230, connecting top rod; 211, second vertical rod; 212, second footrest;

[0041] 300, hinge assembly; 310, hinge member; 320, hinge hole;

[0042] 400, handrail; 410, handrail body; 420, reinforcing connector;

[0043] 500, mounting assembly; 510, first mounting plate; 520, second mounting plate. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, 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 limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0046] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0047] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Combine the following Figures 1 to 5 The ladder of the utility model is described in detail. Figure 1 This is one of the three-dimensional structural schematic diagrams of the ladder provided by the utility model; Figure 2 This is the second schematic diagram of the three-dimensional structure of the ladder provided by the utility model; Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle; Figure 5 is hidden Figure 3 Schematic diagram of the structure after connecting the top rod.

[0050] like Figures 1 to 5 As shown, a specific embodiment of the first aspect of the utility model provides a ladder. The ladder of this embodiment is mounted on a vehicle, and can be extended when needed to shorten the distance between the lowest end of the ladder and the ground, making it easier for vehicle personnel to board the vehicle; it can be shortened when not needed to maintain a safe distance between the lowest end of the vehicle and the ground.

[0051] The ladder of this embodiment includes a fixed ladder 100, a flip ladder 200 and a hinge assembly 300;

[0052] The fixed ladder 100 is formed with a recessed portion 101; the flip ladder 200 is used to switch between a flip state and an unfolded state. In the flip state, the flip ladder 200 abuts against the recessed portion 101; in the unfolded state, the flip ladder 200 is separated from the recessed portion 101; the hinge assembly 300 includes a hinge 310 and a hinge hole 320; one of the fixed ladder 100 and the flip ladder 200 is provided with a hinge hole 320, and the other is connected to the hinge 310;

[0053] The hinge 310 and the hinge hole 320 rotate and cooperate with each other around the first direction, so that the flip ladder 200 switches between the flip state and the unfolded state; the hinge 310 and the hinge hole 320 slide and cooperate along the climbing direction, so that the flip ladder 200 abuts against or separates from the recessed portion 101, and the climbing direction intersects with the first direction.

[0054] In a specific embodiment of the utility model, a recessed portion 101 is formed on a fixed ladder 100, and a hinge assembly 300 is provided, wherein the hinge assembly 300 includes a hinge 310 and a hinge hole 320; one of the fixed ladder 100 and the flip ladder 200 is provided with a hinge hole 320, and the other is connected to the hinge 310, and the hinge 310 rotates and cooperates around the first direction in the hinge hole 320, so that the flip ladder 200 can be switched between a flip state and an unfolded state to adjust the distance between the lowest end of the ladder and the ground, thereby solving the problem that the ladder in the prior art cannot shorten the distance from the ground when needed and maintain a safe distance from the ground when not needed. Specifically, when needed, the flip ladder 200 is in an unfolded state to extend the length of the ladder and shorten the distance between the lowest end of the ladder and the ground, so as to facilitate vehicle personnel to board; when not needed, the flip ladder 200 is in a flipped state to shorten the length of the ladder and maintain a safe distance between the lowest end of the ladder and the ground.

[0055] Furthermore, the hinge 310 and the hinge hole 320 slide and cooperate along the climbing direction, so that the flip ladder 200 can move along the climbing direction relative to the fixed ladder 100, thereby achieving the abutment or separation of the flip ladder 200 and the recessed portion 101, so that the flip ladder 200 can be suspended on the recessed portion 101 by gravity in the flipped state, avoiding the flip ladder 200 from automatically switching from the flipped state to the unfolded state, thereby improving the safety of use.

[0056] In some embodiments, in the case of 1 and Figure 2 In the state shown, the climbing direction is the up-down direction, and the first direction is the left-right direction. Further, the first direction is the width direction of the fixed ladder 100, and the climbing direction is the height direction of the fixed ladder 100.

[0057] In some embodiments, the cross section of the hinge hole 320 in the climbing direction is an elongated strip, and the cross section in the first direction is a circle. Specifically, the hinge hole 320 is an oblong hole, and the length of the oblong hole is in the up-down direction, and the width is in the left-right direction.

[0058] In a specific embodiment of the utility model, the fixed ladder 100 includes a first ladder assembly 110 and a locking member 120; the first ladder assembly 110 is provided with a hinge hole 320; the locking member 120 and the hinge hole 320 are arranged along the climbing direction, the locking member 120 is connected to the first ladder assembly 110, and the locking member 120 is formed with a recessed portion 101. Specifically, the locking member 120 is arranged above the hinge hole 320, and the locking member 120 is formed with a recessed portion 101 along the up-down direction.

[0059] By providing a locking member 120, the locking member 120 is formed with a recessed portion 101, and the locking member 120 is connected to the first ladder assembly 110, the processing of the first ladder assembly 110 can be avoided, and the processing cost can be reduced. The locking member 120 is detachably connected to the first ladder assembly 110, and the distance between the recessed portion 101 and the hinge hole 320 can be adjusted according to the height of the flip ladder 200, ensuring that the flip ladder 200 can be suspended on the locking member 120 by gravity in the flip state, and abut against the recessed portion 101, thereby improving the safety of use.

[0060] In some embodiments, the locking member 120 is detachably mounted on the left side or / and the right side of the first ladder assembly 110, so as to facilitate the installation of the locking member 120. Specifically, the locking member 120 is detachably connected to a side of the first vertical rod 1111 away from the first footrest member 1112.

[0061] Furthermore, the locking member 120 includes but is not limited to a hook.

[0062] In a specific embodiment of the present utility model, the first ladder assembly 110 includes a first ladder body 111 and at least two first support members 112;

[0063] The first ladder body 111 is detachably connected to the locking member 120 ; the two first support members 112 are arranged along the first direction and are both connected to the first ladder body 111 ; the first support member 112 is provided with a hinge hole 320 ; and the flip ladder 200 is disposed between the two first support members 112 .

[0064] In a specific embodiment of the present invention, the provision of the first support member 112 can avoid the need to provide a hinge hole 320 on the first ladder body 111, thereby reducing the difficulty and cost of processing.

[0065] In some embodiments, the first ladder body 111 includes a first footrest 1112 and two first vertical rods 1111; the two first vertical rods 1111 are arranged parallel to each other along a first direction, and the left and right ends of the first footrest 1112 are respectively connected to the two first vertical rods 1111 in a one-to-one manner; the locking member 120 is detachably connected to the side of the first vertical rod 1111 away from the first footrest 1112, so as to improve the installation efficiency.

[0066] Furthermore, the two first support members 112 are respectively disposed at the lower front ends of the two first vertical rods 1111 , so that a gap is reserved between the hinge hole 320 and the first vertical rod 1111 , which facilitates the installation of the flip ladder 200 .

[0067] It is understandable that in the specific embodiment of the present invention, there is no limitation on the number of the first footrest members 1112 .

[0068] In a specific embodiment of the present utility model, the flip ladder 200 includes a second ladder body 210 and at least two second connecting plates 220;

[0069] Among them, the second ladder body 210 is abutted against or separated from the recessed portion 101; at least two second connecting plates 220 are arranged along the first direction and are both connected to the second ladder body 210; the second connecting plate 220 is provided with a mounting hole along the first direction, one end of the hinge 310 is connected to the mounting hole, and the other end is limited to the hinge hole 320.

[0070] In a specific embodiment of the present invention, by providing the second connecting plate 220, it is possible to avoid machining mounting holes on the second ladder body 210, thereby reducing machining difficulty and cost.

[0071] In some embodiments, the second ladder body 210 includes a second footrest 212 and two second vertical rods 211; the two second vertical rods 211 are arranged parallel to each other along the first direction, and the left and right ends of the second footrest 212 are respectively arranged on the second vertical rods 211. Two second connecting plates 220 are respectively arranged on the left and right sides of the lower end of the second ladder body 210.

[0072] It is understandable that in the specific embodiment of the present invention, there is no limitation on the number of the second footrest members 212 .

[0073] In some embodiments, a protrusion is formed on the side of the second ladder body 210, and the protrusion abuts or separates from the recess 101. Specifically, a protrusion is formed on a side of the second vertical rod 211 away from the second footrest 212, and the protrusion abuts or separates from the recess 101 formed on the locking member 120.

[0074] Furthermore, the protrusion is located at the top end of the side surface of the second vertical rod 211 .

[0075] In some embodiments, the flip ladder 200 further includes a connecting top rod 230; the connecting top rod 230 is disposed at the top ends of the two second vertical rods 211, and both ends of the connecting top rod 230 extend to the outside of the second vertical rods 211 to form a protrusion. The top end of the flip ladder 200 is brought into contact with or separated from the recessed portion 101 to prevent the flip ladder 200 from interfering with the locking member 120 when flipping.

[0076] In a specific embodiment of the utility model, the ladder further includes a handrail 400; the handrail 400 is arranged at one end of the fixed ladder 100 away from the flip ladder 200. Specifically, the handrail 400 is arranged at the upper part of the fixed ladder 100, and the flip ladder 200 is arranged at the lower part of the fixed ladder 100. By arranging the handrail 400 at the upper part of the fixed ladder 100, when the vehicle personnel stand on the upper part of the fixed ladder 100, they can hold the handrail 400 to improve the safety of use.

[0077] In some embodiments, the armrest 400 includes an armrest body 410 and a reinforcing connector 420;

[0078] The handrail body 410 is arranged on one side of the fixed ladder 100; one end of the reinforcing connector 420 is connected to the handrail body 410, and the other end is connected to the other side of the fixed ladder 100. By arranging the handrail body 410 on one side of the fixed ladder 100, the convenience of boarding is further improved. By arranging the reinforcing connector 420, the installation stability of the handrail body 410 and the fixed ladder 100 can be increased.

[0079] In a specific embodiment of the utility model, the ladder further includes a mounting assembly 500; the mounting assembly 500 includes a first mounting plate 510; the first mounting plate 510 is connected to the fixed ladder 100; in the unfolded state, the first mounting plate 510 abuts against the flip ladder 200 to support the flip ladder 200. By providing the first mounting plate 510, the flip ladder 200 is supported, and the life of the hinge assembly 300 is improved.

[0080] In some embodiments, the first mounting plate 510 includes a fixed portion and a telescopic portion; the fixed portion is connected to the fixed ladder 100, the telescopic portion is connected to the fixed portion, and one end of the telescopic portion away from the fixed portion abuts against the flip ladder 200. The design of the telescopic portion can not only improve the service life of the hinge assembly 300, but also fine-tune the distance between the lowest end of the ladder and the ground by the telescopic length. Specifically, the telescopic portion includes but is not limited to a telescopic plate.

[0081] In a specific embodiment of the utility model, the mounting assembly 500 further includes a second mounting plate 520; the second mounting plate 520 is connected to the first mounting plate 510, and the second mounting plate 520 forms an angle with the first mounting plate 510. Specifically, the second mounting plate 520 is mounted perpendicularly to the first mounting plate 510. By providing the second mounting plate 520, and the second mounting plate 520 forms an angle with the first mounting plate 510, it is convenient to install the ladder on the working machine body.

[0082] A specific embodiment of the second aspect of the utility model provides a working machine, which comprises a working machine body and a ladder of any of the above embodiments; the ladder is connected to the working machine body.

[0083] Because the working machine includes the ladder of any of the above embodiments, it can at least solve the problem that the ladder in the prior art cannot shorten the distance from the ground when needed and maintain a safe distance from the ground when not needed.

[0084] In the embodiments of the present invention, the type of the working machine is not limited, for example, the working machine can be a tunneling machine, a pump truck, a crane, an excavator or a loader, etc. In other words, as long as the working machine can use the ladder of the present invention. Specifically, the working machine is a tunneling machine.

[0085] When in use, the ladder is mounted on the working machine body through the second mounting plate 520. When the flip ladder 200 is in the flipped state, the bottom surface of the first mounting plate 510 is the lowest end of the ladder, and the distance between the bottom surface of the first mounting plate 510 and the ground is at least a safe distance. When the flip ladder 200 is in the unfolded state, the bottom surface of the flip ladder 200 is the lowest end of the ladder, and the distance between the bottom surface of the flip ladder 200 and the ground is 300 mm to 400 mm, so as to prevent the flip ladder 200 from being scratched.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A ladder, characterized in that: include: A fixed ladder (100) is formed with a recessed portion (101); A flip ladder (200), the flip ladder (200) being used to switch between a flip state and an unfolded state, wherein in the flip state, the flip ladder (200) abuts against the recessed portion (101); In the unfolded state, the flip ladder (200) is separated from the recessed portion (101); A hinge assembly (300), the hinge assembly (300) comprising a hinge (310) and a hinge hole (320); one of the fixed ladder (100) and the flip ladder (200) is provided with the hinge hole (320), and the other is connected to the hinge (310); The hinge (310) and the hinge hole (320) rotate and cooperate with each other around a first direction, so that the flip ladder (200) switches between the flip state and the unfolded state; the hinge (310) and the hinge hole (320) slide and cooperate along a climbing direction, so that the flip ladder (200) abuts against or separates from the recessed portion (101), and the climbing direction intersects with the first direction.

2. The ladder according to claim 1, characterized in that The fixed ladder (100) comprises: The first ladder assembly (110) is provided with the hinge hole (320); A locking member (120) and the hinge hole (320) are arranged along the climbing direction, the locking member (120) is detachably connected to the first ladder assembly (110), and the locking member (120) is formed with the recessed portion (101).

3. The ladder according to claim 2, characterized in that The first ladder assembly (110) comprises: A first ladder body (111) detachably connected to the locking member (120); At least two first support members (112) are arranged along the first direction and are both connected to the first ladder body (111); the first support member (112) is provided with the hinge hole (320); and the flip ladder (200) is arranged between the two first support members (112).

4. The ladder according to claim 1, characterized in that The tilting ladder (200) comprises: A second ladder body (210) is in contact with or separated from the recessed portion (101); At least two second connecting plates (220) are arranged along the first direction and are connected to the second ladder body (210); the second connecting plate (220) is provided with a mounting hole along the first direction, one end of the hinge (310) is connected to the mounting hole, and the other end is limited to the hinge hole (320).

5. The ladder according to claim 1, characterized in that Also includes: A handrail (400) is arranged at one end of the fixed ladder (100) away from the flip ladder (200).

6. The ladder according to claim 5, characterized in that The armrest (400) comprises: A handrail body (410) is arranged on one side of the fixed ladder (100); A reinforcing connector (420) has one end connected to the handrail body (410) and the other end connected to the other side of the fixed ladder (100).

7. The ladder according to any one of claims 1 to 6, characterized in that: Also included is an installation component (500), the installation component (500) comprising: A first mounting plate (510) is connected to the fixed ladder (100); in the unfolded state, the first mounting plate (510) abuts against the flip ladder (200) to support the flip ladder (200).

8. The ladder according to claim 7, characterized in that The installation assembly (500) further includes: The second mounting plate (520) is connected to the first mounting plate (510), and the second mounting plate (520) forms an angle with the first mounting plate (510).

9. A working machine, characterized in that: It comprises a working machine body, and the ladder according to any one of claims 1 to 8; the ladder is connected to the working machine body.

10. The working machine according to claim 9, characterized in that: The working machine includes a tunnel boring machine, a pump truck or a crane.

Images