Aerial ladder truck and construction platform with same

Abstract

The utility model discloses an aerial ladder truck and a construction platform with the aerial ladder truck, and relates to the technical field of aerial work devices, the aerial ladder truck comprises a walking truck body, a rotating base arranged on the rear side of the top end of the walking truck body, an aerial ladder arm which is arranged on the rotating base and has an adjustable inclination angle, and a platform base which is arranged on an aerial ladder arm track in a sliding manner; the feeding construction platform is installed on the platform base, and the platform base can drive the feeding construction platform to ascend and descend along the scaling ladder arm track; the telescopic supporting legs are arranged in the length direction of the scaling ladder arm, the fixed ends of the telescopic supporting legs are installed at the bottom of the scaling ladder arm, and the telescopic ends of the telescopic supporting legs can stretch out of the bottom end of the scaling ladder arm and correspond to the peripheral side of the walking vehicle body so as to assist in supporting the scaling ladder arm when the scaling ladder arm inclines or stands. The vertical lifting construction platform can stably and vertically convey materials and construct the vertical lifting construction platform, and has the advantages of being safe in operation and good in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work devices, in particular to a ladder truck and a construction platform with the ladder truck. Background Art

[0002] At present, aerial work in engineering construction requires the use of a ladder truck. The feeding platform moves on the ladder track of the ladder truck to realize the transportation operation between two heights. It can be used as a feeding channel to transport construction materials to the sky, and can also be used as a construction platform to transport construction personnel to the designated height for work. For example, when decorating a building, it is necessary to move cement, sand and gravel and other construction materials on the ground to the designated floor, or construction personnel need to reach a designated height to carry out exterior wall construction of the building. The ladder truck can be parked on the ground downstairs, and the operator can control the extension of the vehicle-mounted ladder downstairs, and make the hopper platform rise along the vehicle-mounted ladder to the set position for unloading, or use the hopper platform as a construction platform to transport construction personnel to the designated position for work; the ladder truck has the advantages of simple operation and high work efficiency. However, in order to achieve flexible and convenient operation, existing aerial ladders are generally placed on light trucks. Compared with heavy trucks, light trucks have the advantages of small size, light weight, and flexible and convenient driving. The aerial ladder arms carried on light trucks are generally only suitable for conveying operations in an inclined state, and all supporting force is provided only by the body of the light truck and the rotating base installed on the body. When the aerial ladder arm is in a vertical state, the center of gravity of the aerial ladder will shift sideways. Because the body of the vehicle carrying the aerial ladder arm is lighter, there is a risk of tipping over when conveying materials in a vertical state.

[0003] A Chinese patent (authorization announcement number CN 216612600 U, 2022.05.27) discloses a ladder handling platform with a self-unloading cargo bucket; specifically, it includes a base; a ladder arm, which is arranged on the base and is provided with a ladder guide rail; a base, which moves up and down along the ladder guide rail; and a cargo bucket, which moves between a unloading position and a loading position of the base; it can be seen that its technical solution is only suitable for conveying materials when the ladder arm is tilted, and when the ladder arm is in a vertical state, the center of gravity of the ladder arm deviates from the base, posing a risk of tipping over; it is impossible to effectively realize the vertical conveying and construction operations of the ladder arm close to the vertical surface outside the building.

[0004] The Chinese patent (authorization announcement number CN 113756707 B, 2022.12.20) discloses a ladder truck with interlocking protection function and its working method; specifically discloses a main structure including a mobile car and an inclined ladder track, the ladder track is arranged on the mobile car; a feeding car, having a frame, a roller, a pull rope and a material frame, the roller is arranged at the bottom of the frame, the roller is movably arranged in the ladder track, the pull rope is connected to one end of the frame, and the material frame is located at the top of the frame; the other end of the pull rope is arranged in the winch, and the winch is rotated by electric drive to retract and release the pull rope to drive the feeding car to move. It can be seen that the ladder truck given by its technical solution is only suitable for use in the inclined state of the ladder track. When its ladder track is vertical, the ladder track and the feeding car will be located behind the mobile car body, so that the center of gravity deviates seriously from the mobile car body, and there is a risk of tipping, so it cannot effectively realize the ladder arm vertically close to the vertical surface outside the building for transportation and construction.

[0005] Therefore, how to provide a ladder truck and a construction platform with the same, which can stably transport materials vertically and build a vertical lifting construction platform, and has the characteristics of safe operation and good stability is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0006] In view of this, the utility model proposes a ladder truck and a construction platform having the same, aiming to solve the technical problems of unstable vertical material transportation and easy dumping of traditional ladder trucks.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a ladder truck, comprising a traveling vehicle body, a rotating base installed at the rear side of the top of the traveling vehicle body, a ladder arm with an adjustable inclination angle installed on the rotating base, and a platform base slidably arranged on the track of the ladder arm; and further comprising:

[0009] A material feeding construction platform, which is installed on the platform base, and the platform base can drive the material feeding construction platform to rise and fall along the ladder arm track;

[0010] The telescopic legs are arranged along the length direction of the ladder arm, with the fixed ends thereof being installed at the bottom of the ladder arm, and the telescopic ends thereof being able to extend out of the bottom end of the ladder arm and corresponding to the outer peripheral side of the walking vehicle body to assist in supporting the ladder arm when the ladder arm is tilted or erected.

[0011] The utility model provides a ladder vehicle which can, when the ladder arm is erected or when the inclination angle is close to that of the erection, extend the telescopic ends of the telescopic legs to abut against the ground or a base fixed to the ground to vertically assist in supporting the ladder arm, so as to relieve the pressure of the ladder arm and the feeding construction platform carrying materials or construction personnel on the rotating base and the walking vehicle body, and prevent the ladder arm from tipping over due to excessive inclination, thereby realizing the stable erection of the ladder arm; the stably erected ladder arm of the utility model can be close to the external vertical surface of the high-rise building to carry out material conveying and facade construction operations, and there is no need to adjust the ladder arm during the construction operations on the facade of the high-rise building, that is, the ladder arm is fixed, and only the feeding construction platform is raised and lowered along the ladder arm track to correspond to each floor and each construction height of the high-rise building, thereby significantly improving the efficiency and convenience of the construction operations, and having a good application prospect.

[0012] As a further improvement of the above technical solution, the telescopic leg includes a guide sleeve, a telescopic bracket and a locking pin;

[0013] There are two guide sleeves, and the two guide sleeves are symmetrically fixed on both sides of the width direction of the ladder arm along the length direction of the ladder arm as fixed ends;

[0014] The telescopic bracket includes a telescopic column and a bottom beam; there are two telescopic columns, the top ends of the two telescopic columns are adapted to slide through the two guide sleeves one by one, the bottom beam is perpendicular to the two telescopic columns, and its two ends are fixed to the bottom ends of the two telescopic columns to form a telescopic end;

[0015] The outer peripheral walls of the telescopic column and the guide sleeve are both provided with pin shaft penetration holes; the locking pin is penetrated through the pin shaft penetration holes of the telescopic column and the guide sleeve to lock the two.

[0016] The beneficial effects of the above technical solution are: when the telescopic column inserted in the guide sleeve is retracted, the bottom beam can be close to the bottom end of the ladder arm, which does not affect the overall turnover of the ladder truck when the ladder arm is flattened; when the ladder arm of the ladder truck is erected or tilted at a small angle, the lower part of the telescopic column can extend out of the guide sleeve and the bottom beam can be abutted against the ground for auxiliary support, and the bottom beam can increase the contact area with the ground and improve the support stability; the telescopic extension of the two telescopic columns can be adjusted synchronously by pushing and pulling the bottom beam; the telescopic column and the guide sleeve are fixed by locking pins, which is convenient, fast and safe.

[0017] As a further improvement of the above technical solution, it also includes a fixed base frame assembly; the fixed base frame assembly includes a fixed base frame and a fastening assembly, and the fixed base frame is horizontally arranged on the outer periphery of the walking body; the top of the fixed base frame has a bottom beam fixing groove; when the ladder arm is erected, the telescopic column can drive the bottom beam to slide into the bottom beam fixing groove, and be fixedly connected to the fixed base frame through the fastening assembly.

[0018] The beneficial effect of the above technical solution is that when in use, the fixed base frame can be horizontally arranged on the ground on the left side, right side or rear of the walking vehicle body, the ladder arm can be erected, and the telescopic column can be extended so that the bottom beam can be embedded in the bottom beam fixing groove and fixed. The horizontally arranged fixed base frame further improves the stability of the auxiliary support of the telescopic legs, which can effectively reduce the swing amplitude of the ladder arm during material transportation and improve the safety of construction workers in the feeding construction platform when working at high altitudes.

[0019] As a further improvement of the above technical solution, the fixed chassis includes an outer frame, an inner frame and a plurality of connecting rods;

[0020] The outer frame and the inner frame are both planar frames, the outer frame is sleeved outside the inner frame and the two are coplanar; the plurality of connecting rods are located between the outer frame and the inner frame, and one end of each connecting rod is fixed to the outer frame and the other end is fixed to the inner frame;

[0021] The inner frame has a hollow portion that passes through its top and bottom surfaces; a sealing plate that closes the bottom port of the hollow portion is fixed to the bottom of the inner frame, so that the bottom beam fixing groove is formed at the top of the inner frame corresponding to the hollow portion.

[0022] The beneficial effects of the above technical solution are: the fixed base frame of the frame structure is light in weight, low in manufacturing cost, and easy to circulate with the ladder truck; the outer frame serves to expand the contact area with the ground and improve the support stability, the connecting rod is used to support and fix the inner frame, and the bottom beam fixing groove of the inner frame is used to fix the bottom beam of the telescopic legs.

[0023] As a further improvement of the above technical solution, the feeding construction platform includes a platform bottom plate and a fence;

[0024] The platform bottom plate is installed on the platform base, and there are multiple fences. The multiple fences are detachably connected to the periphery of the top end of the platform bottom plate and enclose a circular fence structure.

[0025] The beneficial effects of the above technical solution are: the platform bottom plate is used to carry materials and serve as a walking and standing board for construction workers; the fence plays a role in blocking and protecting materials and construction workers, thereby improving the safety of material transportation and personnel construction operations.

[0026] Another aspect of the utility model provides a construction platform, including the above-mentioned aerial ladder truck and a connecting platform;

[0027] There are more than two aerial ladder trucks, and the ladder arms of the two or more aerial ladder trucks are spaced apart and arranged in parallel along the width direction thereof; the telescopic ends of the telescopic legs of each aerial ladder truck correspond to the outer peripheral side of the walking vehicle body and are supported at the bottom of the inclined or upright aerial ladder arm;

[0028] The connecting platform is arranged between any two adjacent material feeding construction platforms of the aerial ladder truck; the two ends of the connecting platform are detachably connected to the corresponding two material feeding construction platforms to form a material feeding construction platform assembly.

[0029] The beneficial effects of the above technical solution are: using more than two ladder trucks to build a feeding construction platform assembly consisting of a feeding construction platform and a connecting platform, the length of the construction platform is extended, and it can replace the scaffolding or climbing frame on the facade of the building for construction use. A feeding construction platform assembly mounted on a walking vehicle body is constructed, which is convenient and fast to turn around, has better adaptability to different construction environments, and is more suitable for layout and construction operations in temporary emergency situations.

[0030] As a further improvement of the above technical solution, it also includes a fixed base frame assembly; the fixed base frame assembly includes a fixed base frame and a fastening assembly, and the top of the fixed base frame has a bottom beam fixing groove; the fixed base frame is arranged under two or more of the ladder arms, and the telescopic ends of the telescopic legs on the two or more ladder arms are adapted to slide into the bottom beam fixing groove, and are fixedly connected to the fixed base frame through the fastening assembly.

[0031] The beneficial effect of the above technical solution is that the telescopic legs of multiple ladder arms are fixedly connected together through the same fixed base frame assembly, which further improves the stability of the ladder arm in transporting materials, as well as the stability of the feeding construction platform assembly constructed on the ladder arm and composed of a feeding construction platform and a connecting platform.

[0032] It can be seen from the above technical solutions that, compared with the prior art, the utility model discloses a ladder truck and a construction platform having the same, which has the following advantages and beneficial effects:

[0033] 1. The utility model ladder truck can stably transport materials vertically and construct a vertical lifting construction platform, and has the advantages of safe operation and good stability.

[0034] 2. The construction platform of the utility model is combined with more than two ladder trucks to construct a longer construction platform on multiple ladder arms arranged in parallel. The stability of the construction platform is improved by integrally connecting multiple telescopic legs through a fixed base frame assembly, and the turnover is convenient and fast and the adaptability to the construction environment is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0036] Figure 1 A schematic diagram of the overall structure of a ladder truck according to the utility model;

[0037] Figure 2 A schematic diagram of the overall structure of a ladder truck according to the utility model from another perspective;

[0038] Figure 3 A side view schematic diagram of a ladder truck of the utility model;

[0039] Figure 4 A three-dimensional schematic diagram of a ladder truck of the utility model in which the ladder arm is rotated to the left side of the traveling vehicle body and is in an upright state;

[0040] Figure 5 A schematic side view of a ladder truck of the utility model in which the ladder arm is rotated to the left side of the traveling vehicle body and is in an upright state;

[0041] Figure 6 A schematic diagram of a fixed base frame of a ladder truck used to fix the bottom beam of a telescopic bracket in the utility model;

[0042] Figure 7 A schematic diagram of the bottom structure of a fixed chassis of a ladder truck according to the utility model;

[0043] Figure 8 Schematic diagram of the construction platform structure of the utility model;

[0044] In the figure: 1. walking body; 2. rotating base; 3. ladder arm; 31. telescopic cylinder 1; 4. platform base; 5. feeding construction platform; 51. platform bottom plate; 52. fence; 53. telescopic cylinder 2; 6. telescopic support leg; 61. guide sleeve; 611. pin shaft penetration hole; 62. telescopic bracket; 621. telescopic column; 622. bottom beam; 63. locking pin; 7. fixed base frame assembly; 71. fixed base frame; 711. outer frame; 712. inner frame; 7121. sealing plate; 7122. bottom beam fixing groove; 713. connecting rod; 72. fastening assembly; 721. pressure plate; 722. fixing bolt; 8. connecting platform. DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0046] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] like Figures 1 to 8 As shown, a ladder truck and a construction platform having the same, comprising:

[0050] The utility model provides a ladder truck, comprising a traveling vehicle body 1, a rotating base 2 rotatably mounted on the rear side of the top of the traveling vehicle body 1, a ladder arm 3 whose bottom is hinged on the rotating base 2, and a platform base 4 slidably arranged on the track of the ladder arm 3; the bottom end of a telescopic oil cylinder 31 is hinged on the rotating base 2 as a fixed end, and the top end of the telescopic oil cylinder 31 is hinged on the ladder arm 3 as a telescopic end, so as to telescopically adjust the inclination angle of the ladder arm 3; and also includes:

[0051] The feeding construction platform 5 has one end hinged at one end of the platform base 4, and the other end is hinged to the top telescopic end of the telescopic cylinder 2 53. The bottom of the telescopic cylinder 2 53 is a fixed end and is hinged at the other end of the platform base 4. The telescopic cylinder 2 53 is used to support and telescopically adjust the rotation of the feeding construction platform 5 to maintain its horizontal state; the platform base 4 of the feeding construction platform 5 can drive the feeding construction platform 5 to rise and fall along the track of the ladder arm 3; the platform base 4 can be driven to move along the track of the ladder arm 3 by the structure of the ladder truck in the prior art, which will not be repeated here;

[0052] The telescopic legs 6 are arranged along the length direction of the ladder arm 3, and the fixed ends thereof are installed at the bottom of the ladder arm 3. The telescopic ends thereof can extend out of the bottom end of the ladder arm 3 and correspond to the outer peripheral side of the walking vehicle body 1 to assist in supporting the ladder arm 3 when the ladder arm 3 is tilted or erected.

[0053] The lifting platform 5 is lifted up and lowered to the ground after the lifting of the lifting device 3. The lifting platform 5 is lifted up and lowered to the ground after the lifting of the lifting device 3.

[0054] Specifically, the walking body 1, the rotating base 2, the ladder arm 3, the platform base 4 and the telescopic cylinder 31 can all be structurally designed with reference to the existing technology. Figure 4 and Figure 5 The figure shows the state where the ladder arm 3 is driven by the rotating base 2 to rotate to the side of the traveling vehicle body 1 .

[0055] In some embodiments, the telescopic leg 6 includes a guide sleeve 61, a telescopic bracket 62 and a locking pin 63;

[0056] There are two guide sleeves 61, and the two guide sleeves 61 are used as fixed ends and are symmetrically bolted to the two sides of the ladder arm 3 in the width direction along the length direction of the ladder arm 3;

[0057] The telescopic bracket 62 includes a telescopic column 621 and a bottom beam 622; there are two telescopic columns 621, the top ends of the two telescopic columns 621 are adapted to slide through the two guide sleeves 61 in a one-to-one correspondence, the bottom beam 622 is perpendicular to the two telescopic columns 621, and its two ends are fixed to the bottom ends of the two telescopic columns 621 to form a telescopic end;

[0058] The outer walls of the telescopic column 621 and the guide sleeve 61 are provided with a plurality of pin holes 611 along the length direction; the locking pins 63 are passed through the corresponding pin holes 611 of the telescopic column 621 and the guide sleeve 61 to lock the two.

[0059] When the telescopic column 621 inserted in the guide sleeve 61 is retracted, the bottom beam 622 can be close to the bottom end of the ladder arm 3, which does not affect the overall turnover of the ladder truck when the ladder arm 3 is laid flat; when the ladder arm 3 of the ladder truck is erected or tilted at a small angle, the lower part of the telescopic column 621 can extend out of the guide sleeve 61 and the bottom beam 622 can be abutted against the ground for auxiliary support. The bottom beam 622 can increase the contact area with the ground and improve the support stability; the telescopic columns 621 can be adjusted synchronously by pushing and pulling the bottom beam 622; the telescopic column 621 and the guide sleeve 61 are fixed by the locking pin 63, which is convenient, fast and safe.

[0060] In some embodiments, a fixed base frame assembly 7 is also included; the fixed base frame assembly 7 includes a fixed base frame 71 and a fastening assembly 72, and the fixed base frame 71 is horizontally arranged on the outer peripheral side of the walking body 1; the top of the fixed base frame 71 has a bottom beam fixing groove 7122; when the ladder arm 3 is erected, the telescopic column 621 can drive the bottom beam 622 to slide into the bottom beam fixing groove 7122, and be fixedly connected to the fixed base frame 71 through the fastening assembly 72.

[0061] When in use, the fixed base frame 71 can be horizontally arranged on the ground on the left side, right side or rear of the walking body 1, the ladder arm 3 is erected, and the telescopic column 621 is extended so that the bottom beam 622 is embedded in the bottom beam fixing groove 7122 and fixed. The horizontally arranged fixed base frame 71 further improves the stability of the auxiliary support of the telescopic legs 6, which can effectively reduce the swing amplitude of the ladder arm 3 during material transportation, and improve the safety of construction personnel in the feeding construction platform 5 when working at high altitudes.

[0062] Specifically, the fastening assembly 72 may be a bolt.

[0063] In some embodiments, the fixed chassis 71 includes an outer frame 711, an inner frame 712 and a plurality of connecting rods 713;

[0064] The outer frame 711 and the inner frame 712 are both planar frames, and the outer frame 711 is sleeved outside the inner frame 712 and the two are coplanar; a plurality of connecting rods 713 are located between the outer frame 711 and the inner frame 712, and one end of each connecting rod 713 is fixed to the outer frame 711, and the other end is fixed to the inner frame 712;

[0065] The inner frame 712 has a hollow portion that passes through its top and bottom surfaces; a sealing plate 7121 that closes the bottom port of the hollow portion is fixed to the bottom of the inner frame 712 to form a bottom beam fixing groove 7122 corresponding to the hollow portion at the top of the inner frame 712.

[0066] The fixed base frame 71 of the frame structure is light in weight and low in manufacturing cost, and is easy to rotate with the ladder truck; the outer frame 711 serves to expand the contact area with the ground and improve the support stability, and the connecting rod 713 is used to support and fix the inner frame 712, and the bottom beam fixing groove 7122 of the inner frame 712 is used to fix the bottom beam 622 of the telescopic support leg 6.

[0067] In some embodiments, the fastening assembly 72 includes a pressure plate 721 and a fixing bolt 722; the pressure plate 721 is arranged on the top surface of the inner frame 712 to press and fix the bottom beam 622 embedded in the bottom beam fixing groove 7122; the pressure plate 721 is arranged between the two telescopic columns 621, and the two ends along the relative directions of the two telescopic columns 621 are correspondingly fitted with the two telescopic columns 621 for limiting, so as to prevent the bottom beam 622 from shifting along the length direction of the bottom beam fixing groove 7122; the pressure plate 721 and the inner frame 712 are fastened by the fixing bolt 722.

[0068] Specifically, the bottom beam fixing groove 7122 is a long strip groove with a rectangular cross section; the bottom beam 622 has a rectangular cross section; the bottom beam 622 can be adapted to be embedded in the bottom beam fixing groove 7122 and snap-fitted into position to prevent rotation, but the bottom beam 622 can slide along the length direction of the bottom beam fixing groove 7122 to facilitate adjustment of the fixed position.

[0069] Specifically, the length of the bottom beam fixing groove 7122 can be designed according to actual construction needs.

[0070] Specifically, the outer frame 711 and the inner frame 712 can both be manufactured by welding square tubes; the inner frame 712 is formed by four square steel tubes welded end to end in sequence to form a rectangle, so as to define a bottom beam fixing groove 7122 inside; the bottom end of the bottom beam fixing groove 7122 can be sealed by a steel plate; the outer frame 711, the inner frame 712 and the connecting rod 713 are welded and fixed.

[0071] In some embodiments, the material feeding construction platform 5 includes a platform bottom plate 51 and a fence 52;

[0072] The platform bottom plate 51 is installed on the platform base 4, and there are multiple fences 52. The multiple fences 52 are detachably connected to the top side of the platform bottom plate 51 and enclose a circular fence structure.

[0073] The platform bottom plate 51 is used to carry materials and serve as a walking and standing board for construction workers; the fence 52 serves to block and protect materials and construction workers, thereby improving the safety of material transportation and construction work.

[0074] On the other hand, the utility model provides a construction platform, including a ladder truck and a connecting platform 8;

[0075] There are more than two ladder trucks, and the ladder arms 3 of the two or more ladder trucks are spaced apart and arranged in parallel along the width direction thereof; the telescopic ends of the telescopic legs 6 of each ladder truck correspond to the outer peripheral side of the walking vehicle body 1 and are supported at the bottom of the inclined or upright ladder arm 3;

[0076] A connecting platform 8 is arranged between the material feeding construction platforms 5 of any two adjacent aerial ladder trucks; both ends of the connecting platform 8 are detachably connected to the corresponding two material feeding construction platforms 5 to form a material feeding construction platform assembly.

[0077] By using more than two ladder trucks to build a feeding construction platform assembly consisting of a feeding construction platform 5 and a connecting platform 8, the length of the construction platform is extended, and it can replace the scaffolding or climbing frame on the facade of the building for construction. A feeding construction platform assembly mounted on the walking body 1 is constructed, which is convenient and fast to turn around, has better adaptability to different construction environments, and is more suitable for layout and construction operations in temporary emergency situations.

[0078] In some embodiments, a fixed base frame assembly 7 is also included; the fixed base frame assembly 7 includes a fixed base frame 71 and a fastening assembly 72, and the top of the fixed base frame 71 has a bottom beam fixing groove 7122; the fixed base frame 71 is arranged under more than two ladder arms 3, and the telescopic ends of the telescopic legs 6 on the more than two ladder arms 3 are adapted to slide into the bottom beam fixing groove 7122, and are fixedly connected to the fixed base frame 71 through the fastening assembly 72.

[0079] The telescopic legs 6 of multiple ladder arms 3 are fixedly connected together through the same fixed base frame assembly 7, which further improves the stability of the ladder arm 3 in transporting materials, as well as the stability of the feeding construction platform assembly constructed on the ladder arm 3 and composed of the feeding construction platform 5 and the connecting platform 8.

[0080] Specifically, the connecting platform 8 includes a connecting platform bottom plate and a guardrail fixed on the connecting platform bottom plate; when the feeding construction platform 5 is connected to the connecting platform 8, the platform bottom plate 51 of the feeding construction platform 5 and the connecting platform bottom plate of the connecting platform 8 can be fixedly connected by bolts, and the fence 52 of the feeding construction platform 5 and the guardrail of the connecting platform 8 can be fixedly connected by bolts. The combined connection of the connecting platform 8 and the feeding construction platform 5 belongs to the prior art and will not be repeated here. It should be noted that the length of the connecting platform 8 can be designed according to the construction needs.

[0081] 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. 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 different embodiments or examples described in this specification.

[0082] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A ladder truck, comprising a traveling vehicle body (1), a rotating base (2) mounted on the rear side of the top of the traveling vehicle body (1), a ladder arm (3) with an adjustable inclination angle mounted on the rotating base (2), and a platform base (4) slidably arranged on a track of the ladder arm (3); characterized in that: Also includes: A material feeding construction platform (5), wherein the material feeding construction platform (5) is installed on the platform base (4), and the platform base (4) can drive the material feeding construction platform (5) to rise and fall along the track of the ladder arm (3); A telescopic leg (6), wherein the telescopic leg (6) is arranged along the length direction of the ladder arm (3), a fixed end of which is installed at the bottom of the ladder arm (3), and a telescopic end of which can extend out of the bottom end of the ladder arm (3) and correspond to the outer peripheral side of the walking vehicle body (1) to assist in supporting the ladder arm (3) when the ladder arm (3) is tilted or erected.

2. A ladder truck according to claim 1, characterized in that: The telescopic leg (6) comprises a guide sleeve (61), a telescopic bracket (62) and a locking pin (63); There are two guide sleeves (61), and the two guide sleeves (61) are fixed as fixed ends along the length direction of the ladder arm (3) symmetrically fixed on both sides of the width direction of the ladder arm (3); The telescopic bracket (62) comprises a telescopic column (621) and a bottom beam (622); there are two telescopic columns (621), the top ends of the two telescopic columns (621) are adapted to slide through the two guide sleeves (61) in a one-to-one correspondence, the bottom beam (622) is perpendicular to the two telescopic columns (621), and its two ends are fixed to the bottom ends of the two telescopic columns (621) to form a telescopic end; The outer circumferential walls of the telescopic column (621) and the guide sleeve (61) are both provided with pin shaft penetration holes (611); the locking pin (63) is penetrated through the pin shaft penetration holes (611) of the telescopic column (621) and the guide sleeve (61) to lock the two.

3. A ladder truck according to claim 2, characterized in that: The invention also comprises a fixed base frame assembly (7); the fixed base frame assembly (7) comprises a fixed base frame (71) and a fastening assembly (72); the fixed base frame (71) is horizontally arranged on the outer peripheral side of the walking vehicle body (1); the top of the fixed base frame (71) is provided with a bottom beam fixing groove (7122); when the ladder arm (3) is erected, the telescopic column (621) can drive the bottom beam (622) to slide into the bottom beam fixing groove (7122) and be fixedly connected to the fixed base frame (71) through the fastening assembly (72).

4. A ladder truck according to claim 3, characterized in that: The fixed base frame (71) comprises an outer frame (711), an inner frame (712) and a plurality of connecting rods (713); The outer frame (711) and the inner frame (712) are both planar frames, the outer frame (711) is sleeved outside the inner frame (712) and the two are coplanar; the plurality of connecting rods (713) are all located between the outer frame (711) and the inner frame (712), and one end of each connecting rod is fixed to the outer frame (711) and the other end is fixed to the inner frame (712); The inner frame (712) has a hollow portion that passes through its top surface and bottom surface; a sealing plate (7121) that closes the bottom port of the hollow portion is fixed to the bottom of the inner frame (712), so that the bottom beam fixing groove (7122) is formed at the top of the inner frame (712) corresponding to the hollow portion.

5. A ladder truck according to claim 1, characterized in that: The feeding construction platform (5) comprises a platform bottom plate (51) and a fence (52); The platform bottom plate (51) is installed on the platform base (4), and there are multiple fences (52). The multiple fences (52) are detachably connected to the top peripheral side of the platform bottom plate (51) and enclose a circular fence structure.

6. A construction platform, characterized in that: It comprises a ladder truck and a connecting platform (8) as claimed in claim 1; There are more than two ladder trucks, and the ladder arms (3) of the two or more ladder trucks are spaced apart and arranged in parallel along the width direction thereof; the telescopic end of the telescopic leg (6) of each of the ladder trucks corresponds to the outer peripheral side of the walking vehicle body (1) and is supported on the bottom of the inclined or upright ladder arm (3); The connecting platform (8) is arranged between any two adjacent material feeding construction platforms (5) of the ladder truck; the two ends of the connecting platform (8) are detachably connected to the corresponding two material feeding construction platforms (5) to form a material feeding construction platform assembly.

7. A construction platform according to claim 6, characterized in that: It also includes a fixed base frame assembly (7); the fixed base frame assembly (7) includes a fixed base frame (71) and a fastening assembly (72); the top of the fixed base frame (71) has a bottom beam fixing groove (7122); the fixed base frame (71) is arranged below two or more of the ladder arms (3), and the telescopic ends of the telescopic legs (6) on the two or more of the ladder arms (3) are adapted to slide into the bottom beam fixing groove (7122), and are fixedly connected to the fixed base frame (71) via the fastening assembly (72).

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