Hoisting trolley

Abstract

The present invention relates to a lifting trolley, which can be applied to a scaffold. The lifting trolley includes a supporting base, a lifting device and a running device, wherein the lifting device is connected to the supporting base, the lifting device includes a lifting part, the lifting part can move in a direction close to or away from the supporting base, and the lifting part is used to lift objects; the running device is connected to the supporting base, the running device is used to be slidably connected to the scaffold, and can move along the extension direction of the scaffold. The running device is connected to the supporting base, and the running device is slidably connected to the scaffold so that the running device can drive the supporting base and the lifting device to move along the extension direction of the scaffold at the same time, thereby realizing that the lifting device can move on the scaffold. Through the above structural form, the scaffold used in the construction process can be directly utilized, eliminating the process of specially setting up I-beams, thereby improving the construction period and saving investment costs.

Description

Technical Field

[0001] The present invention relates to the technical field of article hoisting in industrial construction, and particularly to a hoisting trolley. Background Art

[0002] At an industrial construction site, it is usually necessary to hoist heavy objects from the ground to a high place. Currently, special I-beam hoisting trolleys and other hoisting devices are usually used to hoist heavy objects. However, when using an I-beam hoisting trolley, special I-beams need to be erected to provide a walking track for the trolley to move. The special installation of the I-beam walking track has defects such as a long overall construction period, high financial investment cost, and high equipment maintenance cost due to inconvenient installation and other reasons. Summary of the Invention

[0003] Based on this, it is necessary to provide a hoisting trolley for the problems of long construction period and high investment cost of the hoisting trolley for hoisting heavy objects during the construction process in the prior art.

[0004] A hoisting trolley applicable to a scaffold, the hoisting trolley comprising:

[0005] A support base;

[0006] A hoisting device connected to the support base, the hoisting device including a hoisting part, the hoisting part being movable in a direction closer to or farther from the support base, and the hoisting part being used for hoisting an object;

[0007] A traveling device connected to the support base, the traveling device being used for slidably connecting to the scaffold and being movable along the extension direction of the scaffold.

[0008] In one embodiment, the scaffold includes at least two spaced-apart steel pipes, and the traveling device includes:

[0009] At least a pair of traveling mechanisms, each traveling mechanism in each pair of traveling mechanisms being respectively connected to the support base and slidably connected to the steel pipe;

[0010] A first driving mechanism connected to two traveling mechanisms in any one pair of traveling mechanisms, the first driving mechanism being used for driving the traveling mechanisms to move relative to the steel pipe.

[0011] In one embodiment, each traveling mechanism includes:

[0012] A connecting seat connected to the support base;

[0013] The walking wheel assembly is connected to the connection seat and is also connected to the first driving mechanism. The walking wheel assembly abuts against the steel pipe and rotates relative to the steel pipe under the drive of the first driving mechanism, so that the walking wheel assembly can move relative to the steel pipe along the extending direction of the steel pipe.

[0014] Two guiding wheel assemblies are both connected to the connection seat. In the radial direction of the steel pipe, the two guiding wheel assemblies are respectively located on both sides of the walking wheel assembly. Both of the two guiding wheel assemblies abut against the outer peripheral surface of the steel pipe and can rotate relative to the steel pipe, so that the guiding wheel assemblies can move relative to the steel pipe.

[0015] In one embodiment, the guiding wheel assembly includes:

[0016] A connecting shaft fixedly connected to the connection seat;

[0017] A guiding wheel rotatably connected to the connecting shaft, and the guiding wheel is used for abutting against the steel pipe;

[0018] Wherein, the connecting line of the guiding wheels on the two guiding wheel assemblies in the radial direction of the steel pipe passes through the center of the cross-section of the steel pipe.

[0019] In one embodiment, the guiding wheel assembly further includes:

[0020] A limiting sleeve sleeved on the connecting shaft and fixed relative to the connecting shaft. The extending direction of the limiting sleeve is consistent with the axis of the connecting shaft, and the limiting sleeve is used for restricting the guiding wheel from moving axially along the connecting shaft;

[0021] A friction sleeve is inserted into the inner hole of the guiding wheel and fixed to the guiding wheel. The friction sleeve is sleeved on the connecting shaft and can rotate relative to the connecting shaft.

[0022] In one embodiment, the hoisting trolley further includes:

[0023] A connecting plate fixedly connected to the connection seat;

[0024] An installation assembly includes a second bearing seat, a second bearing and a rotating shaft. The second bearing seat is fixed to the connecting plate. The outer ring of the second bearing is connected to the second bearing seat, and the inner ring of the second bearing is connected to the support base. Along the axial direction of the rotating shaft, a stop block is arranged at one end of the rotating shaft facing the connecting plate. And between the stop block and the connecting plate, and between the connecting plate and the support base along the axial direction of the rotating shaft, balls are arranged. The connecting plate is connected to the support base through the rotating shaft.

[0025] In one embodiment, the support base includes:

[0026] A first support plate to which the hoisting device is connected;

[0027] A second support plate to which the connecting plate is connected, and a buffer assembly is provided between the second support plate and the first support plate;

[0028] The buffer assembly includes a guide rod and a buffer member. The buffer member is sleeved on the guide rod. The guide rod is movably connected to the first support plate and the second support plate, and both ends of the buffer member respectively abut against the first support plate and the second support plate;

[0029] Wherein, the extending direction of the guide rod is along the horizontal direction and perpendicular to the extending direction of the steel pipe.

[0030] In one embodiment, the support base further includes a guiding assembly. The guiding assembly is arranged beside the buffer assembly and includes:

[0031] A guiding slider fixedly connected to the second support plate, and a plurality of first guiding grooves with extending directions consistent with the extending direction of the guide rod are arranged on the guiding slider;

[0032] A plurality of guiding columns corresponding to the first guiding grooves and slidably arranged in the first guiding grooves;

[0033] The first support plate is provided with a second guiding groove. The guiding slider is slidably arranged in the second guiding groove. A plurality of third guiding grooves corresponding to the first guiding grooves are arranged on the side wall of the second guiding groove, and the guiding columns are slidably arranged in the third guiding grooves;

[0034] An end plate is connected to the end of the guiding slider and can abut against the end of the guiding column.

[0035] In one embodiment, the first driving device includes:

[0036] A bracket fixedly connected to the support base;

[0037] A driving wheel assembly rotatably connected to the bracket;

[0038] A driven wheel assembly rotatably connected to the bracket and linked with the driving wheel assembly;

[0039] A first driving shaft fixedly connected to the driven wheel assembly and connected to the traveling mechanism;

[0040] The first driving member is connected to the driving wheel assembly and can apply a driving force to the driving wheel assembly so that the driving wheel assembly can rotate relative to the bracket.

[0041] In one embodiment, the driving wheel assembly includes:

[0042] A driving shaft rotatably connected to the bracket and fixedly connected to the first driving member;

[0043] Two driving gears respectively fixedly connected to both ends of the driving shaft;

[0044] The first driving member includes:

[0045] A first driving wheel fixedly connected to the driving shaft;

[0046] A first zipper drivingly connected to the first driving wheel, and the first driving wheel is linked with the first zipper.

[0047] In one embodiment, the driven wheel assembly includes:

[0048] A driven shaft rotatably connected to the bracket;

[0049] A coupling with both ends respectively connected to the driven wheel and the first driving shaft;

[0050] A driven gear fixedly connected to the driven shaft, and the driven gear meshes with the driving gear;

[0051] The hoisting device includes:

[0052] A fixed housing fixedly connected to the support base, and an accommodation cavity is provided inside the fixed housing;

[0053] A hoisting mechanism disposed in the accommodation cavity and including the hoisting portion;

[0054] A second driving mechanism disposed in the accommodation cavity and connected to the hoisting mechanism, and the second driving mechanism is used to drive the hoisting portion to move in a direction close to or away from the support base.

[0055] In one embodiment, the second driving mechanism includes:

[0056] A second driving shaft rotatably connected to the fixed housing and linked with the hoisting mechanism;

[0057] A second driving wheel fixedly connected to the second driving shaft;

[0058] A second zipper drivingly connected to the second driving wheel, and the second driving wheel is linked with the second zipper.

[0059] Beneficial effects of the present invention:

[0060] The present technical solution provides a lifting trolley, wherein the support base is used to support a lifting device and a traveling device, the lifting device is used to lift heavy objects, and the traveling device is used to drive the support base and the lifting device to move. The lifting device is connected to the support base, and the lifting part is arranged to be movable in a direction close to or away from the support base, so that the heavy object hoisted on the lifting part can move in a direction close to or away from the support base as the lifting part moves, thereby achieving the purpose of lifting the heavy object. The traveling device is connected to the support base, and the traveling device is slidably connected to the scaffolding, so that the traveling device can drive the support base and the lifting device to move simultaneously along the extension direction of the scaffolding, thereby achieving the lifting device to move on the scaffolding. Through the above structural form, the scaffolding used in the construction process can be directly utilized, eliminating the process of specially setting up I-beams, thereby improving the construction period and saving investment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 A top view of the lifting trolley provided in an embodiment of the present invention after being installed on a scaffold;

[0062] Figure 2 A cross-sectional view of a lifting trolley provided in an embodiment of the present invention;

[0063] Figure 3 A top view of the lifting trolley provided in an embodiment of the present invention after being installed on a scaffold with the first support plate hidden;

[0064] Figure 4 for Figure 3 Schematic diagram of the structure after cutting along BB;

[0065] Figure 5 for Figure 4 Schematic diagram of the structure after local sectioning along AA;

[0066] Figure 6 A cross-sectional view of the traveling device portion of the lifting trolley provided in an embodiment of the present invention after being installed on a scaffold with the first support plate removed;

[0067] Figure 7 A top view of the lifting trolley provided in an embodiment of the present invention after being installed on a scaffold with the support base hidden;

[0068] Figure 8 for Figure 7 Schematic diagram of the cross-section structure along CC;

[0069] Figure 9 for Figure 1 Schematic diagram of the enlarged structure of part D.

[0070] Scaffold 10; steel pipe 101;

[0071] Support base 20; first support plate 201; second guide groove 2011; third guide groove 2011a; second support plate 202; avoidance hole 2021; avoidance groove 2022; buffer assembly 203; guide rod 2031; buffer member 2032; guide assembly 204; guide slider 2041; first guide groove 2041a; guide post 2042;

[0072] Lifting device 30; fixed housing 301; lifting mechanism 302; speed reduction assembly 3021; first gear 3021a; transmission shaft 3021b; second gear 3021c; lifting wheel 3022; lifting zipper 3023; lifting part 3024; second drive mechanism 303; second drive shaft 3031; second drive wheel 3032; second zipper 3033;

[0073] Traveling device 40; traveling mechanism 401; connecting seat 4011; traveling wheel assembly 4012; first bearing seat 4012a; first bearing 4012b; load-bearing wheel 4012c; guide wheel assembly 4013; connecting shaft 4013a; guide wheel 4013b; limit sleeve 4013c; friction sleeve 4013d; first drive mechanism 402; bracket 4021; driving wheel assembly 4022; driving shaft 4022a; driving gear 4022b; driven wheel assembly 4023; driven shaft 4023a; coupling 4023b; driven gear 4023c; first drive shaft 4024; first drive member 4025; first drive wheel 4025a; first zipper 4025b;

[0074] Connecting plate 50;

[0075] Installation assembly 60; second bearing seat 601; second bearing 602; rotating shaft 603. Detailed implementation manners

[0076] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0077] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 thus should not be construed as a limitation to the present invention.

[0078] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0079] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0081] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0082] See also Figures 1 to 9 , Figure 1 A top view of a lifting trolley in an embodiment of the present invention after being installed on a scaffold is shown. An embodiment of the present invention provides a lifting trolley, which can be applied to a scaffold 10. The lifting trolley includes a support base 20, a lifting device 30 and a walking device 40, wherein the lifting device 30 is connected to the support base 20, and the lifting device 30 includes a lifting part 3024, which can move toward or away from the support base 20, and the lifting part 3024 is used to lift objects; the walking device 40 is connected to the support base 20, and the walking device 40 is used to be slidably connected to the scaffold 10 and can move along the extension direction of the scaffold 10.

[0083] The lifting trolley provided by the present technical solution can be applied to a scaffold 10, wherein the support base 20 is used to support the hoisting device 30 and the walking device 40, the hoisting device 30 is used to hoist heavy objects, and the walking device 40 is used to drive the support base 20 and the hoisting device 30 to move. Specifically, by connecting the hoisting device 30 to the support base 20, and by setting the hoisting portion 3024 to be movable in a direction close to or away from the support base 20, the heavy objects hoisted on the hoisting portion 3024 can move in a direction close to or away from the support base 20 as the hoisting portion 3024 moves, thereby achieving the purpose of hoisting heavy objects. The walking device 40 is connected to the support base 20, and by slidingly connecting the walking device 40 to the scaffold 10, so that the walking device 40 can drive the support base 20 and the hoisting device 30 to move simultaneously along the extension direction of the scaffold 10, thereby achieving the hoisting device 30 to move on the scaffold. With the above structural form, the scaffolding 10 used in the construction process can be directly utilized, eliminating the process of specially setting up I-beams, thereby improving the construction period and saving investment costs.

[0084] It should be noted that the scaffold 10 includes at least two spaced-apart steel pipes 101. The structural form of the support base 20 is not limited. The support base 20 can be a plate-like structure, and the hoisting device 30 and the traveling device 40 are respectively arranged at different positions on the plate-like structure. The traveling device 40 drives the plate-like structure to move along the extending direction of the scaffold 10, so as to realize the movement of the hoisting device 30 along the extending direction of the scaffold 10. The support base 20 can also be set in the following structural form.

[0085] Specifically, as Figure 3 and Figure 4 shown, the support base 20 includes a first support plate 201, a second support plate 202 and a buffer assembly 203. The hoisting trolley further includes a connecting plate 50 for connecting the traveling device 40 and the support base 20. The hoisting device 30 is connected to the first support plate 201; the connecting plate 50 is connected to the second support plate 202, and a buffer assembly 203 is arranged between the second support plate 202 and the first support plate 201; the buffer assembly 203 includes a guide rod 2031 and a buffer member 2032. The buffer member 2032 is sleeved on the guide rod 2031, and the guide rod 2031 is movably connected to the first support plate 201 and the second support plate 202. The two ends of the buffer member 2032 respectively abut against the first support plate 201 and the second support plate 202; wherein, the extending direction of the guide rod 2031 is along the horizontal direction and perpendicular to the extending direction of the steel pipe 101. By arranging a buffer assembly 203 between the first support plate 201 and the second support plate 202, during the movement of the hoisting trolley along the extending direction of the steel pipe 101, the impact force between the first support plate 201 and the second support plate 202 caused by the poor straightness of the steel pipe 101 is absorbed, so as to improve the connection stability between the first support plate 201 and the second support plate 202, and at the same time, automatic centering between the first support plate 201 and the second support plate 202 can be realized.

[0086] It should be noted that, as Figure 3 shown, the hoisting assembly is arranged at the center position of the first support plate 201 and the second support plate 202. Among them, an avoidance hole 2021 for avoiding the hoisting part 3024 and the second zipper 3033 in the hoisting assembly is arranged on the second support plate 202; and an avoidance groove 2022 for avoiding the first zipper 4025b in the first driving mechanism 402 is also arranged on the second support plate 202.

[0087] In this embodiment, the buffer member 2032 can be a spring, and of course, it can also be a structure such as a rubber sleeve with certain elasticity. For the connection manner between the guide rod 2031 and the first support plate 201 and the second support plate 202, in this embodiment, as Figure 4 shown (wherein Figure 4On the left side, the position where the first support plate and the second support plate are connected is a schematic cross-sectional view along the guiding assembly. Figure 4 On the right side of Figure 4 is a schematic cross-sectional view along the buffer assembly). At the position where the buffer assembly 203 is installed on the first support plate 201, accommodation notches are provided for accommodating the buffer assembly 203. A mounting block is welded on the first support plate 201, and a through hole is formed in the mounting block. Correspondingly, two spaced-apart mounting blocks are provided on the second support plate 202, and through holes are also formed in the mounting blocks. The mounting block on the first support plate 201 is arranged between the two mounting blocks on the second support plate 202. Then, the end of the guiding rod 2031 is sequentially passed through the through holes in each mounting block and fixed with nuts. And elastic members are sleeved on both ends of the mounting block on the first support plate 201 of the guiding rod 2031. It should be noted that on both sides of the first support plate 201 and the second support plate 202 along the direction perpendicular to the extension direction of the steel pipe 101, a buffer assembly is provided respectively.

[0088] Furthermore, as Figure 4 shown, the support base 20 further includes a guiding assembly 204. The guiding assembly 204 is arranged beside the buffer assembly 203. The guiding assembly 204 includes a guiding slider 2041, a plurality of guiding columns 2042 and an end plate. Among them, the guiding slider 2041 is fixedly connected to the second support plate 202, and a plurality of first guiding grooves 2041a with an extension direction consistent with the extension direction of the guiding rod 2031 are provided on the guiding slider 2041; the plurality of guiding columns 2042 correspond to the first guiding grooves 2041a and are slidably arranged in the first guiding grooves 2041a; a second guiding groove 2011 is provided on the first support plate 201, the guiding slider 2041 is slidably arranged in the second guiding groove 2011, and a plurality of third guiding grooves 2011a corresponding to the first guiding grooves 2041a are provided on the side wall of the second guiding groove 2011, and the guiding columns 2042 are slidably arranged in the third guiding grooves 2011a; the end plate is connected to the end of the guiding slider 2041 and can abut against the end of the guiding column 2042. The guiding assembly 204 is arranged on the support base 20 to play a guiding role when aligning the first support plate 201 and the second support plate 202 through the buffer assembly 203. Furthermore, the alignment of the first support plate 201 and the second support plate 202 is made more stable and reliable. Specifically, a guiding assembly 204 is provided on both sides of each buffer assembly 203 along the direction perpendicular to the extension direction of the guiding rod 2031.

[0089] There is no limitation on the structural form of the traveling device 40, as long as it can be connected to the steel pipe 101 on the scaffold 10 and can travel along the extension direction of the steel pipe 101 after connection. In this application, the device adopts the following structure.

[0090] As Figure 2 andFigure 6 As shown, the traveling device 40 includes at least a pair of traveling mechanisms 401 and a first driving mechanism 402. Each traveling mechanism 401 in each pair of traveling mechanisms 401 is respectively connected to the support base 20 and is slidably connected to the steel pipe 101; the first driving mechanism 402 is connected to two traveling mechanisms 401 in any one pair of traveling mechanisms 401, and the first driving mechanism 402 is used to drive the traveling mechanism 401 to move relative to the steel pipe 101. By connecting the traveling mechanism 401 to the support base 20 and enabling the traveling mechanism 401 to be slidably connected to the steel pipe 101, when the traveling mechanism 401 slides along the steel pipe 101, it can drive the support base 20 to move, thereby driving the hoisting device 30 to move along the extending direction of the steel pipe 101. The first driving mechanism 402 is used to drive the traveling mechanism 401 to move relative to the steel pipe 101, thereby realizing the movement of the hoisting trolley relative to the steel pipe 101.

[0091] It should be noted that in this embodiment, the traveling device 40 includes two pairs of traveling mechanisms 401. One pair is connected to the first driving mechanism 402 to serve as the active traveling mechanism 401 to drive the entire support base 20 and the structures on the support base 20 to move; the remaining pair of traveling mechanisms 401 is not connected to any driving mechanism and serves as the driven traveling mechanism 401 to cooperate with the active traveling mechanism 401 to complete the movement of the support base 20 relative to the scaffold 10.

[0092] Specifically, in combination with Figure 2 and Figure 6It is understood that each traveling mechanism 401 includes a connecting seat 4011, a traveling wheel assembly 4012 and two guiding wheel assemblies 4013. The connecting seat 4011 is connected to the supporting base 20; the traveling wheel assembly 4012 is connected to the connecting seat 4011 and is connected to the first driving mechanism 402. The traveling wheel assembly 4012 abuts against the steel pipe 101 and rotates relative to the steel pipe 101 under the drive of the first driving mechanism 402, so that the traveling wheel assembly 4012 can move relative to the steel pipe 101 along the extending direction of the steel pipe 101; the two guiding wheel assemblies 4013 are both connected to the connecting seat 4011, and in the radial direction of the steel pipe 101, the two guiding wheel assemblies 4013 are respectively located on both sides of the traveling wheel assembly 4012. The two guiding wheel assemblies 4013 both abut against the outer peripheral surface of the steel pipe 101 and can rotate relative to the steel pipe 101, so that the guiding wheel assemblies 4013 can move relative to the steel pipe 101. The connecting base is used to connect the traveling wheel assembly 4012 and the guiding wheel assembly 4013 to the supporting base 20. By connecting the first driving mechanism 402 to the traveling wheel assembly 4012, the first driving mechanism 402 drives the traveling wheel assembly 4012 to move relatively, so as to realize the movement of the entire supporting base 20 relative to the steel pipe 101. In this embodiment, the connecting seat 4011 is fixed to the connecting plate 50 by bolts, so as to realize the connection between the connecting seat 4011 and the supporting base 20. By arranging the guiding wheel assemblies 4013 on both sides of the traveling wheel assembly 4012, a guiding effect is provided for the movement of the traveling wheel assembly 4012 relative to the steel pipe 101, thereby improving the stability of the operation of the entire traveling device 40.

[0093] Further, continue to refer to Figure 2 and Figure 6 It is understood that the traveling wheel assembly 4012 includes a first bearing seat 4012a, a first bearing 4012b and a load-bearing wheel 4012c. Among them, the first bearing seat 4012a is fixedly connected to the connecting seat 4011 and is rotatably connected to the output shaft of the first driving mechanism 402; the inner ring of the first bearing 4012b is connected to the first bearing seat 4012a; the load-bearing wheel 4012c is connected to the outer ring of the first bearing 4012b and is fixedly connected to the output shaft of the first driving mechanism 402. The output shaft of the first driving mechanism 402 is rotatably connected to the first bearing seat 4012a, so that the output shaft of the first driving mechanism 402 can rotate relative to the first bearing seat 4012a. By fixedly connecting the load-bearing wheel 4012c to the output shaft of the first driving mechanism 402, the load-bearing wheel 4012c can rotate with the rotation of the output shaft of the first driving mechanism 402. Thus, the rotation of the load-bearing wheel 4012c relative to the connecting seat 4011 is realized. It should be noted that a bearing is arranged between the first bearing seat 4012a and the output shaft of the first driving mechanism 402 to realize the rotation of the two.

[0094] In one embodiment, as Figure 6 shown, the guide wheel assembly 4013 includes a connecting shaft 4013a and a guide wheel 4013b. The connecting shaft 4013a is fixedly connected to the connecting seat 4011; the guide wheel 4013b is rotatably connected to the connecting shaft 4013a, and the guide wheel 4013b is used to abut against the steel pipe 101. The connecting shaft 4013a is used to achieve the rotatable connection between the guide wheel 4013b and the connecting seat 4011. The guide wheel 4013b is arranged to be rotatable relative to the connecting shaft 4013a, so that during the process of the traveling mechanism 401 moving relative to the steel pipe 101, the guide wheel 4013b abutting against the steel pipe 101 can also move relative to the steel pipe 101, and plays a guiding role in the movement of the traveling mechanism 401 relative to the steel pipe 101, thereby improving the stability of the entire hoisting trolley during traveling.

[0095] Furthermore, as Figure 6 shown, the connecting lines of the guide wheels 4013b on the two guide wheel assemblies 4013 pass through the center of the cross-section of the steel pipe 101 in the radial direction of the steel pipe 101. Adopting this structural form can improve the stability of the relative movement between the guide wheel 4013b and the steel pipe 101, thereby improving the stability of the movement of the guide wheel assembly 4013 relative to the steel pipe 101 of the hoisting trolley.

[0096] Even further, as Figure 6 shown, the guide wheel assembly 4013 further includes a limit sleeve 4013c and a friction sleeve 4013d. Among them, the limit sleeve 4013c is sleeved on the connecting shaft 4013a and is fixed relative to the connecting shaft 4013a. The extending direction of the limit sleeve 4013c is consistent with the axis of the connecting shaft 4013a. The limit sleeve 4013c is used to limit the axial movement of the guide wheel 4013b along the connecting shaft 4013a; the friction sleeve 4013d is inserted through the inner hole of the guide wheel 4013b and is fixed to the guide wheel 4013b. The friction sleeve 4013d is sleeved on the connecting shaft 4013a and can rotate relative to the connecting shaft 4013a. The limit sleeve 4013c is used to limit the guide wheel 4013b to limit the axial movement of the guide wheel 4013b along the connecting shaft 4013a, so that the guide wheel 4013b always abuts against the steel pipe 101 and guides the movement of the traveling mechanism 401 to improve the reliability of the guide wheel 4013b guiding the traveling mechanism 401. By providing a friction sleeve 4013d between the guide wheel 4013b and the connecting shaft 4013a, during the process of the guide wheel 4013b rotating along the steel pipe 101, the wear of the guide wheel 4013b caused by the friction between the guide wheel 4013b and the connecting shaft 4013a, and the guiding instability caused by the wear are reduced. Thereby, the service life of the guide wheel 4013b is improved and the guiding stability of the guide wheel 4013b is improved.

[0097] In one embodiment, as Figure 7 and Figure 8 shown, the hoisting trolley further includes a connecting plate 50 and a mounting assembly 60. The connecting plate 50 is fixedly connected to the connecting seat 4011. The mounting assembly 60 includes a second bearing seat 601, a second bearing 602, and a rotating shaft 603. The second bearing seat 601 is fixed to the connecting plate 50. The outer ring of the second bearing 602 is connected to the second bearing seat 601, and the inner ring of the second bearing 602 is connected to the support base 20. Along the axial direction of the rotating shaft 603, a stop block is provided at one end of the rotating shaft 603 facing the connecting plate 50. And along the axial direction of the rotating shaft 603, between the stop block and the connecting plate 50, and between the connecting plate 50 and the support base 20, balls are provided. The connecting plate 50 is connected to the support base 20 through the rotating shaft 603. The connecting plate 50 is used to connect the two traveling mechanisms 401 located on the same steel pipe 101, and then is connected to the support base 20 through the mounting assembly 60 to improve the integration of the entire traveling device 40, thereby facilitating the assembly of the entire hoisting trolley. The support base 20 is connected to the connecting plate 50 through the second bearing seat 601, the second bearing 602, and the rotating shaft 603, so that the connecting plate 50 can rotate relative to the support base 20. Thus, when the hoisting device 30 travels relative to the steel pipe 101 on the traveling device 40, during the process that the steel pipe 101 is not straight or the distance between two steel pipes 101 changes, the stress of the hoisting device 30 and the traveling device 40 on the support base 20 can be reduced by the rotation of the support base 20 relative to the connecting plate 50, thereby improving the service life of the entire hoisting trolley. And balls are provided between the rotating shaft 603 and the connecting plate 50, which can also enable the rotating shaft 603 to rotate relative to the connecting plate 50. Specifically, guide grooves for guiding the rolling of the balls can be provided on the sides of the rotating shaft 603 and the support base 20 that are in contact with the balls, and part of the balls are arranged in the guide grooves to prevent the balls from separating from the connecting plate 50 and the second support plate 202, thereby improving the reliability of the rotation of the rotating shaft 603 relative to the connecting plate 50.

[0098] In one embodiment, as Figure 6As shown, the first driving device includes a bracket 4021, a driving wheel assembly 4022, a driven wheel assembly 4023, a first driving shaft 4024, and a first driving member 4025. Among them, the bracket 4021 is fixedly connected to the support base 20; the driving wheel assembly 4022 is rotatably connected to the bracket 4021; the driven wheel assembly 4023 is rotatably connected to the bracket 4021 and is linked with the driving wheel assembly 4022; the first driving shaft 4024 is fixedly connected to the driven wheel assembly 4023 and is connected to the traveling mechanism 401; the first driving member 4025 is connected to the driving wheel assembly 4022 and can apply a driving force to the driving wheel assembly 4022 so that the driving wheel assembly 4022 can rotate relative to the bracket 4021. The bracket 4021 is fixedly connected to the support base 20 to support the driving wheel assembly 4022, the driven wheel assembly 4023, the first driving shaft 4024, and the second driving member. By rotatably connecting the driving wheel assembly 4022 to the bracket 4021, the driving wheel assembly 4022 can rotate relative to the bracket 4021. The first driving member 4025 is connected to the driving wheel assembly 4022, and a driving force is applied to the driving wheel assembly 4022 through the first driving member 4025 so that the driving wheel assembly 4022 can rotate relative to the bracket 4021. By connecting the driven wheel assembly 4023 to the driving wheel assembly 4022, the driven wheel assembly 4023 rotates under the rotation of the driving wheel assembly 4022, thereby driving the first driving shaft 4024 to rotate, and further realizing the movement of the traveling mechanism 401 relative to the steel pipe 101. It should be noted that the first driving shaft 4024 is the output shaft of the first driving mechanism 402 mentioned above.

[0099] In one embodiment, as Figure 6 shown, the driving wheel assembly 4022 includes a driving shaft 4022a and two driving gears 4022b. The driving shaft 4022a is rotatably connected to the bracket 4021 and is fixedly connected to the first driving member 4025; the two driving gears 4022b are respectively fixedly connected to both ends of the driving shaft 4022a. Since the driving shaft 4022a is fixedly connected to the first driving member 4025, a driving force is applied to the driving shaft 4022a through the first driving member 4025 so that the driving shaft 4022a can rotate relative to the bracket 4021. The two driving gears 4022b are respectively fixed to the driving shaft 4022a so that the driving shaft 4022a can drive the driving gears 4022b to rotate.

[0100] Specifically, as Figure 6As shown, the first driving member 4025 includes a first driving wheel 4025a and a first zipper 4025b. The first driving wheel 4025a is fixedly connected to the driving shaft 4022a. The first zipper 4025b is drivingly connected to the first driving wheel 4025a, and the first driving wheel 4025a is linked with the first zipper 4025b. By linking the first zipper 4025b with the first driving wheel 4025a, when an external force is applied to the first zipper 4025b, the first zipper 4025b can drive the first driving wheel 4025a to rotate, thereby driving the driving shaft 4022a to rotate.

[0101] As Figure 6 shown, the driven wheel assembly 4023 includes a driven shaft 4023a, a coupling 4023b, and a driven gear. The driven shaft 4023a is rotatably connected to the bracket 4021. Both ends of the coupling 4023b are respectively connected to the driven wheel and the first driving shaft 4024. The driven gear 4023c is fixedly connected to the driven shaft 4023a, and the driven gear 4023c meshes with the driving gear 4022b. By meshing the driven gear 4023c with the driving gear 4022b, when an external force is applied to the first zipper 4025b, the first zipper 4025b drives the first driving wheel 4025a to rotate, so that the driving shaft 4022a can rotate relative to the bracket 4021. Under the action of the driving gear 4022b, the driving gear 4022b can drive the driven gear 4023c to rotate, so that the driven shaft 4023a can rotate relative to the bracket 4021. The first driving shaft 4024 and the driven shaft 4023a are fixedly connected by the coupling 4023b, so that the first driving shaft 4024 fixedly connected to the traveling mechanism 401 can rotate with the driven shaft 4023a under the action of the driven shaft 4023a, thereby realizing the movement of the traveling mechanism 401.

[0102] In one embodiment, as Figure 2 and Figure 9 shown, the hoisting device 30 includes a fixed housing 301, a hoisting mechanism 302, and a second driving mechanism 303. The fixed housing 301 is fixedly connected to the support base 20. An accommodation cavity is arranged in the fixed housing 301. The hoisting mechanism 302 is arranged in the accommodation cavity and includes a hoisting part 3024. The second driving mechanism 303 is arranged in the accommodation cavity and is connected to the hoisting mechanism 302. The second driving mechanism 303 is used to drive the hoisting part 3024 to move in a direction close to or away from the support base 20. The fixed housing 301 is used to protect the internal structure and the second driving mechanism 303. The hoisting mechanism 302 is used to hoist heavy objects, and the second driving mechanism 303 is used to drive the hoisting part 3024 in the mechanism to move relative to the support base 20.

[0103] Specifically, as Figure 2 and Figure 9As shown, the second driving mechanism 303 includes a second driving shaft 3031, a second driving wheel 3032, and a second zipper 3033. The second driving shaft 3031 is rotatably connected to the fixed housing 301 and is linked with the second driving shaft 3031 of the hoisting mechanism 302; the second driving wheel 3032 is fixedly connected to the second driving shaft 3031; the second zipper 3033 is drivingly connected to the second driving wheel 3032, and the second driving wheel 3032 is linked with the second zipper 3033. By rotatably connecting the second driving shaft 3031 to the fixed housing 301 and linking the hoisting mechanism 302 with the second driving shaft 3031, the hoisting part 3024 in the component is driven to move relative to the support base 20 by the rotation of the second driving shaft 3031. The second driving shaft 3031 is fixedly connected to the second driving wheel 3032 so that when the second driving wheel 3032 rotates relative to the fixed housing 301 under the action of the second zipper 3033, the second driving shaft 3031 can rotate along with the rotation of the second driving wheel 3032, thereby realizing the movement of the hoisting part 3024 in the component.

[0104] In one embodiment, as Figure 2 and Figure 9 shown, the hoisting mechanism 302 includes a speed reduction component 3021, a hoisting wheel 3022, and a hoisting zipper 3023. The speed reduction component 3021 is connected to the second driving shaft 3031; the hoisting wheel 3022 is linked with the speed reduction component 3021; the hoisting zipper 3023 is drivingly connected to the hoisting wheel 3022, and the hoisting part 3024 is arranged on the hoisting zipper 3023. By providing the speed reduction component 3021, the output torque of the hoisting mechanism 302 is increased, thereby improving the reliability of the operation of the entire hoisting mechanism 302. As Figure 9As shown, the speed reduction assembly 3021 includes a first gear 3021a, a second gear 3021c and a transmission shaft 3021b. Among them, the teeth on the first gear 3021a mesh with the tooth grooves on the end of the second drive shaft 3031, so that the first gear 3021a rotates driven by the second drive shaft 3031; the transmission shaft 3021b is fixedly connected to the first gear 3021a, and the tooth grooves on the transmission shaft 3021b mesh with the teeth on the second gear 3021c, and the second gear 3021c is driven to rotate by the transmission shaft 3021b. The second gear 3021c is used to drive the hoisting wheel 3022 to rotate. The hoisting zipper 3023 is used for hoisting heavy objects. By setting the hoisting zipper 3023 in a form linked with the hoisting wheel 3022, the speed reduction assembly 3021 is driven to rotate by the second drive shaft 3031, thereby driving the hoisting wheel 3022 to rotate, and the hoisting of heavy objects is realized through the linkage between the hoisting wheel 3022 and the hoisting zipper 3023. Of course, the mechanism also includes a brake assembly for braking the second drive shaft 3031. In this embodiment, the brake assembly adopts a ratchet brake. Specifically, it includes a brake seat, a brake ratchet, a wear-resistant sheet and a pawl. The rotation of the second drive shaft 3031 is restricted through the coordinated action of the brake base, the brake ratchet, the wear-resistant sheet and the pawl, so as to restrict the rotation of the hoisting wheel 3022.

[0105] The operating principle of the hoisting trolley provided by the embodiment of the present invention is as follows:

[0106] Refer to Figures 1 - 9It should be understood that when it is necessary to install a hoisting trolley on the scaffold 10, the two guiding wheel assemblies 4013 of each traveling mechanism 401 are clamped on the steel pipe 101 of the scaffold 10, and the load-bearing wheels 4012c on the traveling wheel assembly 4012 are abutted against the steel pipe 101 of the scaffold 10. By pulling the first zipper 4025b by hand, the first driving wheel 4025a rotates under the driving force of the first zipper 4025b, thereby driving the rotation of the driving shaft 4022a fixed to the first driving wheel 4025a, and the driving gear 4022b connected to the driving shaft 4022a rotates with the rotation of the driving shaft 4022a. The driven gear 4023c engaged with the driving gear 4022b is driven to rotate, so that the driven shaft 4023a rotates, and further the first driving shaft 4024 connected to the driven shaft 4023a through the coupling 4023b rotates. The first driving shaft 4024 is fixed to the load-bearing wheel 4012c, so that by pulling the first zipper 4025b, the rotation of the load-bearing wheel 4012c on the traveling mechanism 401 is realized, and further the movement of the traveling mechanism 401 relative to the steel pipe 101 on the scaffold 10 is realized. It should be noted that the active traveling mechanism 401 realizes the traveling function through the first zipper 4025b on the first driving mechanism 402, and the driven traveling mechanism 401 moves relative to the steel pipe 101 by following the movement of the support base 20 driven by the active traveling mechanism 401.

[0107] When hoisting heavy objects, by pulling the second zipper 3033 by hand, the second driving wheel 3032 is driven to rotate. The second driving wheel 3032 drives the rotation of the second driving shaft 3031, and further the speed reduction assembly 3021 rotates with the second driving shaft 3031, so that the hoisting wheel 3022 connected to the speed reduction assembly 3021 rotates, thereby realizing the movement of the hoisting zipper 3023 relative to the support base 20, and finally realizing the hoisting of heavy objects.

[0108] It should be noted that during the process of the hoisting device 30 driving the support base 20 to move relative to the steel pipe 101 along with the traveling device 40, the automatic alignment between the traveling mechanism 401 and the second support plate 202 can be realized through the cooperation of the buffer assembly 203 and the guiding assembly 204 on the support base 20. By setting the connecting plate 50 to be rotatable relative to the second support plate 202, the impact force on the support base 20 during the operation of the traveling device 40 caused by the flatness error on the scaffold 10 can be offset.

[0109] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0110] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A hoisting trolley, which can be applied to a scaffolding, is characterized in that, The hoisting trolley includes: A support base; A hoisting device connected to the support base. The hoisting device includes a hoisting part that can move in a direction closer to or farther from the support base, and the hoisting part is used for hoisting an object; A traveling device connected to the support base. The traveling device is used for slidably connecting to the scaffolding and can move along the extending direction of the scaffolding; The scaffolding includes at least two spaced steel pipes. The traveling device includes: At least a pair of traveling mechanisms. Each traveling mechanism in each pair of traveling mechanisms is respectively connected to the support base and is slidably connected to the steel pipe; A first driving mechanism connected to two traveling mechanisms in any one pair of traveling mechanisms. The first driving mechanism is used for driving the traveling mechanism to move relative to the steel pipe; Each traveling mechanism includes a connecting seat connected to the support base; The hoisting trolley further includes: A connecting plate fixedly connected to the connecting seat; An installation component including a second bearing seat, a second bearing, and a rotating shaft. The second bearing seat is fixed to the connecting plate. The outer ring of the second bearing is connected to the second bearing seat, and the inner ring of the second bearing is connected to the support base. Along the axial direction of the rotating shaft, a stop block is provided at one end of the rotating shaft facing the connecting plate. And between the stop block and the connecting plate, and between the connecting plate and the support base along the axial direction of the rotating shaft, balls are provided. The connecting plate is connected to the support base through the rotating shaft.

2. The hoisting trolley according to claim 1, characterized in that, Each traveling mechanism further includes: A traveling wheel assembly connected to the connecting seat and connected to the first driving mechanism. The traveling wheel assembly abuts against the steel pipe and rotates relative to the steel pipe under the drive of the first driving mechanism so that the traveling wheel assembly can move relative to the steel pipe along the extending direction of the steel pipe; Two guiding wheel assemblies, both connected to the connecting seat. And in the radial direction of the steel pipe, the two guiding wheel assemblies are respectively located on both sides of the traveling wheel assembly. Both of the two guiding wheel assemblies abut against the outer peripheral surface of the steel pipe and can rotate relative to the steel pipe so that the guiding wheel assemblies can move relative to the steel pipe.

3. The hoisting trolley according to claim 2, characterized in that, The guiding wheel assembly includes: A connecting shaft fixedly connected to the connecting seat; A guiding wheel rotatably connected to the connecting shaft. The guiding wheel is used for abutting against the steel pipe; Wherein, the connecting line of the guiding wheels on the two guiding wheel assemblies in the radial direction of the steel pipe passes through the center of the cross-section of the steel pipe.

4. The hoisting trolley according to claim 3, characterized in that, The guiding wheel assembly further includes: A limiting sleeve sleeved on the connecting shaft and fixed relative to the connecting shaft. The extending direction of the limiting sleeve is consistent with the axis of the connecting shaft. The limiting sleeve is used for restricting the guiding wheel from moving axially along the connecting shaft; A friction sleeve inserted into the inner hole of the guiding wheel and fixed to the guiding wheel. The friction sleeve is sleeved on the connecting shaft and can rotate relative to the connecting shaft.

5. The hoisting trolley according to claim 4, characterized in that The support base includes: A first support plate, to which the hoisting device is connected; The second support plate, the connecting plate is connected to the second support plate, and a buffer assembly is arranged between the second support plate and the first support plate; The buffer assembly includes a guide rod and a buffer member. The buffer member is sleeved on the guide rod. The guide rod is movably connected to the first support plate and the second support plate. Two ends of the buffer member respectively abut against the first support plate and the second support plate; Wherein, the extending direction of the guide rod is along the horizontal direction and perpendicular to the extending direction of the steel pipe.

6. The hoisting trolley according to claim 5, characterized in that, The support base further includes a guiding assembly. The guiding assembly is arranged beside the buffer assembly. The guiding assembly includes: A guiding slider fixedly connected to the second support plate. A plurality of first guiding grooves with extending directions consistent with the extending direction of the guide rod are arranged on the guiding slider; A plurality of guiding columns corresponding to the first guiding grooves and slidably arranged in the first guiding grooves; A second guiding groove is arranged on the first support plate. The guiding slider is slidably arranged in the second guiding groove. A plurality of third guiding grooves corresponding to the first guiding grooves are arranged on the side wall of the second guiding groove. The guiding columns are slidably arranged in the third guiding grooves; An end plate connected to the end of the guiding slider and capable of abutting against the end of the guiding column.

7. The hoisting trolley according to any one of claims 1-6, characterized in that, The first driving device includes: A bracket fixedly connected to the support base; A driving wheel assembly rotatably connected to the bracket; A driven wheel assembly rotatably connected to the bracket and linked with the driving wheel assembly; A first driving shaft fixedly connected to the driven wheel assembly and connected to the traveling mechanism; A first driving member connected to the driving wheel assembly and capable of applying a driving force to the driving wheel assembly so that the driving wheel assembly can rotate relative to the bracket.

8. The hoisting trolley according to claim 7, characterized in that, The driving wheel assembly includes: A driving shaft rotatably connected to the bracket and fixedly connected to the first driving member; Two driving gears respectively fixedly connected to two ends of the driving shaft; The first driving member includes: A first driving wheel fixedly connected to the driving shaft; A first zipper drivingly connected to the first driving wheel, and the first driving wheel is linked with the first zipper; The driven wheel assembly includes: A driven shaft rotatably connected to the bracket; A coupling with two ends respectively connected to the driven wheel and the first driving shaft; A driven gear fixedly connected to the driven shaft, and the driven gear meshes with the driving gear.

9. The hoisting trolley according to any one of claims 1-6, characterized in that The hoisting device includes: A fixed housing fixedly connected to the support base. An accommodating cavity is arranged inside the fixed housing; A hoisting mechanism arranged in the accommodating cavity and including the hoisting part; A second driving mechanism arranged in the accommodating cavity and connected to the hoisting mechanism. The second driving mechanism is used for driving the hoisting part to move in a direction close to or away from the support base.

10. The hoisting trolley according to claim 9, characterized in that, The second driving mechanism includes: A second driving shaft rotatably connected to the fixed housing. The hoisting mechanism is linked with the second driving shaft; A second driving wheel fixedly connected to the second driving shaft; The second zipper, which is in transmission connection with the second driving wheel, and the second driving wheel is linked with the second zipper.

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