Universal wheel and carrying vehicle

Abstract

The utility model relates to the technical field of carrying equipment, and provides a universal wheel and a carrying vehicle, and the universal wheel comprises a mounting assembly, a wheel assembly and an adjusting assembly; the mounting assembly comprises a mounting seat and a mounting bracket; the mounting bracket is rotationally connected with the mounting seat; the wheel assembly comprises a wheel body and an adjusting shaft, the adjusting shaft penetrates through the mounting bracket, and the wheel body is arranged on the adjusting shaft and rotates relative to the adjusting shaft; the adjusting assembly comprises an adjusting part and a positioning part; the adjusting part is rotationally arranged on the mounting bracket; the adjusting shaft penetrates through the adjusting component and is fixed relative to the adjusting component, and the rotating center of the adjusting shaft is eccentrically arranged relative to the rotating center of the adjusting component; the adjusting part is provided with a plurality of positioning parts in an array mode along the rotating center, and the positioning part is arranged on the mounting support, located on the rotating path of the adjusting part and suitable for being matched with the positioning parts to limit rotation of the adjusting part. The wheel body is convenient to install and debug, the height of the wheel body can be adjusted to ensure the stability of the wheel body, and the service life of the wheel body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a carrying equipment technical field especially relates to a universal wheel and carrying vehicle. BACKGROUND

[0002] The carrying vehicle is the essential operation vehicle of the current warehousing industry, and the universal wheel is usually used as the balance wheel of the carrying vehicle to provide support and balance for the running of the carrying vehicle.

[0003] In the related art, the universal wheel applied to the carrying vehicle mainly focuses on the rotation freedom of the wheel body, emphasizing omnidirectional movement and stability, but has obvious short boards in dealing with height changes. For example, when passing through the threshold, going up and down the slope or docking different height platforms, it is difficult to ensure the smooth transition of the vehicle, the stability of the carrying vehicle is poor, and the wheel body is seriously worn. UTILITY MODEL CONTENTS

[0004] The utility model provides a universal wheel and carrying vehicle to solve the above technical defects in the prior art, which is not only convenient for wheel body installation and debugging, but also adjusts the wheel body height to better ensure the stability of the whole vehicle, thereby prolonging the service life of the wheel body.

[0005] The first aspect of the utility model provides a universal wheel, which comprises a mounting assembly, a wheel assembly and an adjusting assembly.

[0006] The mounting assembly comprises a mounting seat and a mounting bracket, the mounting seat is suitable for mounting to a carrying body, and the mounting bracket is rotationally connected with the mounting seat.

[0007] The wheel assembly comprises a wheel body and an adjusting shaft, the adjusting shaft is arranged in the mounting bracket, the wheel body is arranged on the adjusting shaft and rotates relative to the adjusting shaft.

[0008] The adjusting assembly comprises an adjusting part and a positioning piece, the adjusting part is rotationally arranged on the mounting bracket, the adjusting shaft is arranged in the adjusting part and is relatively fixed with the adjusting part, the rotation center of the adjusting shaft is eccentrically arranged relative to the rotation center of the adjusting part, the adjusting part is provided with a plurality of positioning parts along the rotation center, and the positioning piece is arranged on the mounting bracket and located on the rotation path of the adjusting part and is suitable for cooperating with the positioning parts to limit the rotation of the adjusting part.

[0009] According to the universal wheel provided by the utility model, at least one side of the mounting bracket is provided with a mounting hole.

[0010] The adjusting component comprises an adjusting member and a fastener, the adjusting member is arranged in the mounting hole and can rotate around its axis, a fixing hole is arranged on the adjusting member, the center of the fixing hole is arranged eccentrically relative to the center of the mounting hole, the adjusting shaft is arranged in the fixing hole, and the fastener is arranged at the end of the adjusting shaft.

[0011] According to the universal wheel provided by the utility model, the adjusting member comprises an adjusting body and a rotary body, the rotary body is arranged on one side of the adjusting body, the axis of the rotary body coincides with the axis of the adjusting body;

[0012] The rotary body is arranged in the mounting hole and can rotate around its axis to drive the adjusting body to rotate synchronously, and the positioning part is arranged on the outer circumferential surface of the adjusting body.

[0013] The fixing hole is arranged through the adjusting body and the rotary body, and the center of the fixing hole is arranged eccentrically relative to the center of the rotary body.

[0014] According to the universal wheel provided by the utility model, the mounting support comprises a first support body and a second support body, the first side of the first support body is rotationally connected with the second support body, the second side of the first support body is limitingly matched with the second support body, and the first side and the second side are located on the opposite sides of the first support body.

[0015] The first support body is rotationally connected with the mounting seat, and the adjusting component and the positioning member are arranged on at least one side of the second support body.

[0016] According to the universal wheel provided by the utility model, the first side of the first support body is connected with a hinged shaft, the second support body is rotationally connected with the hinged shaft, the second side of the first support body is connected with a limiting shaft, and the second support body is adapted to abut to the limiting shaft.

[0017] The connecting line of the shaft centers of the adjusting shaft, the hinged shaft and the limiting shaft forms a virtual triangle.

[0018] According to the universal wheel provided by the utility model, the first support body and the second support body are provided with an elastic member therebetween.

[0019] When the second support body rotates relative to the first support body, the elastic member is compressed to be elastically deformed to realize the damping effect, and when the second support body remains relatively static relative to the first support body, the elastic member restores the elastic deformation to play a supporting role.

[0020] According to the universal wheel provided by the utility model, the first frame body comprises a frame body and a supporting part, the supporting part is symmetrically arranged on the two sides of the frame body, and the supporting part is formed by bending the frame body; a first extension part is formed by bending the frame body, a second extension part is formed by bending the supporting part, the first extension part and the second extension part intersect to form a first connecting part, and one end of the elastic piece is connected with the first connecting part.

[0021] According to the universal wheel provided by the utility model, the second frame body comprises two mounting parts and a second connecting part, the two mounting parts are arranged at intervals, the second connecting part is arranged between the two mounting parts and connected with the two mounting parts respectively, and the other end of the elastic piece is connected with the second connecting part.

[0022] According to the universal wheel provided by the utility model, the wheel assembly further comprises a bearing and a shaft sleeve, the shaft sleeve is arranged on the outer side of the adjusting shaft, the bearing is arranged at intervals on the adjusting shaft and located on the two sides of the shaft sleeve, and the wheel body is arranged on the bearing.

[0023] The second aspect of the utility model provides a carrying vehicle, which comprises a carrying main body and the universal wheel of any one of the aspects, and the universal wheel is arranged at the bottom of the carrying main body.

[0024] The universal wheel provided by the utility model comprises an installation assembly, a wheel assembly and an adjusting assembly, the adjusting shaft is arranged in the mounting bracket, the wheel body is arranged on the adjusting shaft and rotates relative to the adjusting shaft, the adjusting part is arranged in the mounting bracket, the adjusting shaft is arranged in the adjusting part and fixed relative to the adjusting part, the rotation center of the adjusting shaft is arranged eccentrically relative to the rotation center of the adjusting part, a plurality of positioning parts are arranged on the adjusting part along the rotation center, the positioning piece is arranged in the mounting bracket and located on the rotation path of the adjusting part, and the positioning part is suitable for cooperating with the positioning part to limit the rotation of the adjusting part.

[0025] When the height of the wheel body needs to be changed, the adjusting part is rotated to drive the adjusting shaft coupled with the adjusting part to rotate, due to the eccentric arrangement of the adjusting part and the adjusting shaft, the movement of the adjusting part forces the adjusting shaft to move along the preset track, and the height of the wheel body changes to realize adjustment. After the height of the wheel body is adjusted to the appropriate position, the corresponding positioning part is aligned with the positioning piece, the positioning piece is clamped in the positioning part to block the rotation of the adjusting part, and at this time, the positioning part cooperates with the positioning piece to form physical locking. The whole process is simple to operate, which is not only convenient for the installation and debugging of the wheel body, but also can better ensure the stability of the whole vehicle by adjusting the height of the wheel body for the wear problem of the wheel body of the carrying vehicle, thereby prolonging the service life of the wheel body.

[0026] The carrying vehicle provided by the utility model comprises the universal wheel, and therefore has all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0028] Figure 1 is a structural schematic view of the universal wheel provided by the embodiment of the present application.

[0029] Figure 2 is a partial structural exploded schematic view of the universal wheel provided by the embodiment of the present application.

[0030] Figure 3 is a structural schematic view of the adjusting member in the universal wheel provided by the embodiment of the present application.

[0031] Figure 4 is a front view of the adjusting member shown in Figure 3 .

[0032] Figure 5 is a front view of the universal wheel provided by the embodiment of the present application.

[0033] Figure 6 is a sectional view along the line A-A in Figure 5 .

[0034] Figure 7 is a structural schematic view of the first frame body in the universal wheel provided by the embodiment of the present application.

[0035] Figure 8 is a structural schematic view of the second frame body in the universal wheel provided by the embodiment of the present application.

[0036] Reference signs:

[0037] 10, mounting assembly; 11, mounting seat; 12, mounting bracket; 121, first frame body; 1211, frame body; 1212, support part; 1213, first extension part; 1214, second extension part; 1215, first connecting part; 122, second frame body; 1221, mounting part; 1222, second connecting part; 1223, limiting groove; 123, mounting hole; 124, hinged shaft; 125, limiting shaft;

[0038] 20, wheel assembly; 21, wheel body; 22, adjusting shaft; 23, bearing; 24, shaft sleeve;

[0039] 30, adjustment assembly; 31, adjustment member; 311, adjustment body; 312, swivel body; 313, fixing hole; 314, positioning portion; 32, fastener; 33, positioning member;

[0040] 40, elastic member. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0042] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0045] Figure 1 is a structural schematic diagram of a universal wheel provided by an embodiment of the present application. Figure 2 is a partial structural exploded schematic diagram of a universal wheel provided by an embodiment of the present application.

[0046] Referring to Figure 1 and Figure 2 , the present application provides a universal wheel, which comprises a mounting assembly 10, a wheel assembly 20 and an adjusting assembly 30.

[0047] The mounting assembly 10 comprises a mounting seat 11 and a mounting bracket 12. The mounting seat 11 is provided as a circular or square flat plate and is suitable for being mounted to a carrying main body. The mounting seat 11 is usually made of a cast piece or a high-strength alloy material to ensure sufficient load-bearing capacity and durability. The mounting seat 11 is provided with threaded holes or other forms of joints in the circumferential direction, so that the mounting seat 11 can be fixed to the carrying main body, such as a carrying vehicle, a display stand, etc. The mounting bracket 12 is movably connected to the mounting seat 11 through a pivot or a bearing 23, allowing the mounting bracket 12 to rotate freely by 360 degrees relative to the mounting seat 11.

[0048] The wheel assembly 20 comprises a wheel body 21 and an adjusting shaft 22. The wheel body 21 is made of elastic materials such as rubber and polyurethane, and the part contacting the ground is designed to be thickened to ensure good grip and shock absorption performance. The adjusting shaft 22 is arranged through the mounting bracket 12, and the wheel body 21 is arranged on the adjusting shaft 22 and rotates relative to the adjusting shaft 22, i.e. the wheel body 21 can rotate relative to the adjusting shaft 22 without moving the adjusting shaft 22. The wheel body 21 can be mounted on the adjusting shaft 22 through the bearing 23, and the adjusting shaft 22 supports the rotation of the wheel body 21, and at the same time, the adjusting shaft 22 serves as a linkage medium of the adjusting assembly 30.

[0049] The adjusting assembly 30 comprises an adjusting component and a positioning piece 33. The adjusting component is arranged to rotate in the mounting bracket 12, the adjusting shaft 22 is arranged through the adjusting component and is kept relatively fixed with the adjusting component, and the rotation center of the adjusting shaft 22 is arranged eccentrically relative to the rotation center of the adjusting component. The adjusting component is provided with a plurality of positioning portions 314 along the rotation center, and the positioning piece 33 is arranged in the mounting bracket 12 and located on the rotation path of the adjusting component, and is suitable for cooperating with the positioning portions 314 to limit the rotation of the adjusting component.

[0050] The adjusting component is closely combined with the adjusting shaft 22 but is eccentrically arranged, the adjusting shaft 22 rotates along with the adjusting component, the rotation center of the adjusting component is not in the same straight line with the shaft center of the adjusting shaft 22, the rotation change can be switched into displacement change, and then the height of the wheel body 21 is adjusted. A plurality of positioning portions 314 are arranged on the adjusting component, the plurality of positioning portions 314 are arranged in a ring array, each positioning portion 314 can be matched with the positioning piece 33 fixed on the mounting bracket 12 to form a temporary fixing point, the position of the adjusting component is controlled, and the wheel body 21 can be kept stable at a corresponding height.

[0051] The positioning piece 33 can be a bolt or the like, and a plug hole (not labeled in the figure) for connecting the positioning piece 33 is formed on the mounting bracket 12. The positioning piece 33 can be inserted into the plug hole and kept stable, and is used for limiting the rotation of the adjusting component.

[0052] It can be understood that the universal wheel provided by the utility model embodiment comprises a mounting assembly 10, a wheel assembly 20 and an adjusting assembly 30. The adjusting shaft 22 is arranged in the mounting bracket 12, the wheel body 21 is arranged on the adjusting shaft 22 and rotates relative to the adjusting shaft 22. The adjusting component is arranged to rotate on the mounting bracket 12, the adjusting shaft 22 is arranged in the adjusting component and is kept relative fixed with the adjusting component, the rotation center of the adjusting shaft 22 is arranged eccentrically relative to the rotation center of the adjusting component. The adjusting component is arranged with a plurality of positioning portions 314 along the rotation center, the positioning piece 33 is arranged on the mounting bracket 12 and is located on the rotation path of the adjusting component, and is adapted to cooperate with the positioning portion 314 to limit the rotation of the adjusting component.

[0053] When the height of the wheel body 21 needs to be changed, the adjusting component is rotated to drive the adjusting shaft 22 coupled with the adjusting component to rotate. Since the adjusting component and the adjusting shaft 22 are arranged eccentrically, the movement of the adjusting component forces the adjusting shaft 22 to move along a preset track, and the height of the wheel body 21 changes to achieve adjustment. After the height of the wheel body 21 is adjusted to a suitable position, the corresponding positioning portion 314 is aligned with the positioning piece 33, the positioning piece 33 is clamped in the positioning portion 314 to block the rotation of the adjusting component. At this time, the positioning portion 314 cooperates with the positioning piece 33 to form physical locking. The whole process is simple to operate, which is not only convenient for the installation and debugging of the wheel body 21, but also can better ensure the stability of the whole vehicle by adjusting the height of the wheel body 21 to solve the wear problem of the wheel body 21 of the carrying vehicle, thereby prolonging the service life of the wheel body 21.

[0054] Continue to refer to Figure 2 In some embodiments of the utility model, at least one side of the mounting bracket 12 is provided with a mounting hole 123, that is, a through hole is formed on one side or both sides of the mounting bracket 12 to form the mounting hole 123.

[0055] The adjusting component comprises an adjusting piece 31 and a fastener 32, the adjusting piece 31 is arranged in the mounting hole 123 and can rotate around its own axis, that is, the mounting hole 123 is used for accommodating the main part (the adjusting piece 31) of the adjusting component to form a basic rotating fulcrum.

[0056] The adjusting piece 31 is generally disc-shaped, and the adjusting piece 31 is provided with a fixing hole 313, the center of the fixing hole 313 is arranged eccentrically relative to the center of the mounting hole 123, and the adjusting shaft 22 is arranged in the fixing hole 313. By arranging the fixing hole 313 on the adjusting piece 31 and making the center of the fixing hole 313 deviate from the center of the mounting hole 123 to form eccentric arrangement, when the adjusting component rotates, the adjusting shaft 22 arranged in the fixing hole 313 will move along a predetermined track, so that the position of the wheel body 21 in the vertical direction can be changed, thereby realizing height adjustment of the wheel body 21.

[0057] The fastener 32 is arranged at the end of the adjusting shaft 22, and the fastener 32 is generally a bolt matched with a gasket, a pin shaft or a pin, etc. The fastener 32 is fixed to the end of the adjusting shaft 22, so that relative sliding between the adjusting shaft 22 and the adjusting piece 31 is prevented, and stable connection between the two is maintained.

[0058] Figure 3 is a structural schematic view of the adjusting piece 31 in the universal wheel provided by the embodiment of the utility model. Figure 4 is Figure 3 the front view of the adjusting piece 31.

[0059] Referring to Figure 3 and Figure 4 In some embodiments of the utility model, the adjusting piece 31 comprises an adjusting body 311 and a rotating body 312, the rotating body 312 is arranged at one side of the adjusting body 311, and the axis of the rotating body 312 coincides with the axis of the adjusting body 311.

[0060] The rotating body 312 is arranged in the mounting hole 123 and can rotate around its own axis to drive the adjusting body 311 to rotate synchronously, and the positioning part 314 is arranged on the outer circumferential surface of the adjusting body 311. The fixing hole 313 is arranged through the adjusting body 311 and the rotating body 312, and the center of the fixing hole 313 is arranged eccentrically relative to the center of the rotating body 312.

[0061] Corresponding, the adjusting member 31 can be integrally formed, composed of two parts connected with each other, the adjusting body 311 mainly supports and connects other components, and is usually in the shape of a flat cylinder or the like, and a plurality of positioning portions 314 are arranged on the outer circumferential surface of the adjusting body 311 to adapt to different adjusting requirements. Each positioning portion 314 can be a positioning tooth groove or a positioning hole, the positioning tooth groove is arranged on the outer circumferential surface of the adjusting body 311, and the positioning hole is arranged penetratingly along the axial direction of the adjusting body 311. The rotating body 312 is directly connected with the mounting hole 123 of the mounting bracket 12, the rotating body 312 is in the shape of a cylinder, the axis of the rotating body 312 is consistent with the axis of the adjusting body 311, and synchronous rotation of the two is ensured.

[0062] The fixing hole 313 is arranged on the adjusting body 311 and penetrates the rotating body 312; the center of the fixing hole 313 is offset relative to the rotation center of the rotating body 312 and is arranged offset relative to the rotation center of the rotating body 312. In this way, when the adjusting body 311 rotates under the driving of the rotating body 312, the adjusting shaft 22 arranged in the fixing hole 313 will move along a predetermined track to drive the wheel body 21 to change the position in the vertical direction, so that the height of the wheel body 21 is adjusted.

[0063] Continuing to refer to Figure 1 and Figure 2 In some embodiments of the utility model, the mounting bracket 12 comprises a first bracket body 121 and a second bracket body 122, the first side of the first bracket body 121 is rotationally connected with the second bracket body 122, and the second side of the first bracket body 121 is limitingly matched with the second bracket body 122, and the first side and the second side are located on the opposite sides of the first bracket body 121. The first bracket body 121 is rotationally connected with the mounting seat 11, and the adjusting component is arranged on at least one side of the second bracket body 122.

[0064] Among them, the first bracket body 121 is directly connected with the mounting seat 11 as the main bearing part, and is used for transmitting the overall weight to the wheel body 21. The second bracket body 122 plays the role of auxiliary support and adjustment, and the second bracket body 122 is complementary with the first bracket body 121, the two provide basic connection for damping through the rotational connecting point of the first side, and the two are limited through the limit matching of the second side, so that the second bracket body 122 cannot move randomly relative to the first bracket body 121 within a certain range, and the structural stability and structural strength of the mounting bracket 12 are ensured.

[0065] The utility model discloses mounting bracket 12 is arranged as the double bracket body of rotational connection, can effectively disperse the pressure, reduce the load of single bracket, prolong the service life of mounting bracket 12, and through the limit matching, the first bracket body 121 and the second bracket body 122 can keep stable structural integrity even in the high dynamic environment.

[0066] Figure 5It is a front view of the universal wheel provided by the embodiment of the utility model. Figure 6 It is Figure 5 It is a sectional view along line A-A in the figure.

[0067] Refer to Figure 5 And Figure 6 In some embodiments of the utility model, the first side of the first frame body 121 is connected with a hinged shaft 124, and the second frame body 122 is rotatably connected to the hinged shaft 124; the second side of the first frame body 121 is connected with a limiting shaft 125, and the second frame body 122 is adapted to abut to the limiting shaft 125; the center lines of the shafts of the adjusting shaft 22, the hinged shaft 124 and the limiting shaft 125 form a virtual triangle.

[0068] The hinged shaft 124 rotatably connects the first frame body 121 and the second frame body 122, so that the first frame body 121 and the second frame body 122 can rotate relative to each other, thereby providing a connection basis for the shock absorption function described below. The limiting shaft 125 is used to limit the maximum rotation angle of the second frame body 122 relative to the first frame body 121, so as to ensure that the second frame body 122 will not be excessively deflected, thereby increasing the stability of the mounting bracket 12. The adjusting shaft 22 is used to fix the adjusting component, and by rotating the adjusting component, the entire wheel body 21 is indirectly lifted or lowered, so as to realize height adjustment.

[0069] It should be noted that a limiting groove 1223 is arranged on the second frame body 122 at a position corresponding to the limiting shaft 125, and when the second frame body 122 rotates relative to the first frame body 121, the limiting shaft 125 is clamped into the limiting groove 1223, thereby limiting the rotation of the second frame body 122 relative to the first frame body 121, so as to realize the limiting effect and improve the stability of the first frame body 121 and the second frame body 122. Of course, the upper surface of the second frame body 122 can also directly abut on the limiting shaft 125 to realize the limiting effect.

[0070] The embodiment of the utility model arranges three key shaft points, namely the adjusting shaft 22, the hinged shaft 124 and the limiting shaft 125, so that the three shafts form a stable and flexible triangular frame, thereby not only strengthening the mechanical strength of the universal wheel, but also improving the reliability of the shock absorption and height adjustment of the universal wheel.

[0071] Continuously refer to Figure 6 In some embodiments of the utility model, an elastic member 40 is arranged between the first frame body 121 and the second frame body 122.

[0072] When the second frame body 122 rotates relative to the first frame body 121, the elastic member 40 is compressed to elastically deform, thereby realizing the shock absorption effect; when the second frame body 122 remains relatively stationary relative to the first frame body 121, the elastic member 40 restores the elastic deformation, thereby playing a supporting role.

[0073] In other words, the elastic member 40 is installed between the first frame body 121 and the second frame body 122, and effective energy conversion is performed by using the relative movement space between the first frame body 121 and the second frame body 122. When the device travels on uneven ground, the elastic member 40 absorbs vibration energy by compression under force and reduces the bumping feeling caused by the uneven ground. When the wheel leaves the obstacle or returns to the flat ground, the elastic member 40 quickly returns to its original state and provides stable support force for the universal wheel again, ensuring smooth operation of the device.

[0074] The universal wheel provided by the embodiment of the utility model can not only realize height adjustment of the wheel body 21, but also realize shock absorption function, has novel structure and high practicability.

[0075] The elastic member 40 can be a spring, rubber, polyurethane or other material with excellent elasticity and durability to ensure reliability during long-term use.

[0076] Figure 7 Fig. 1 is a structural schematic view of a universal wheel provided by an embodiment of the utility model. Figure 8 Fig. 2 is a structural schematic view of a second frame body 122 in the universal wheel provided by an embodiment of the utility model.

[0077] Referring to Figure 7 In some embodiments of the utility model, the first frame body 121 comprises a frame body 1211 and a support part 1212, the support part 1212 is symmetrically arranged on both sides of the frame body 1211, the support part 1212 is formed by bending the frame body 1211, which facilitates processing and manufacturing and can reduce economic cost; the frame body 1211 is bent to form a first extension part 1213, the support part 1212 is bent to form a second extension part 1214, the first extension part 1213 and the second extension part 1214 intersect to form a first connecting part 1215, and one end of the elastic member 40 is connected with the first connecting part 1215.

[0078] The frame body 1211 of the first frame body 121 is a central bearing part, the overall rigidity is enhanced through the side support part 1212, the support part 1212 is arranged on both sides of the frame body 1211 and is formed by bending the material of the frame body 1211, so that material is saved and the structural strength is increased. In addition, the top of the frame body 1211 is bent to form the first extension part 1213, the tail of the support part 1212 is extended to form the second extension part 1214, the first extension part 1213 and the second extension part 1214 intersect to form the first connecting part 1215, and the one end of the elastic member 40 is fixed.

[0079] Referring to Figure 8In some embodiments of the utility model, second frame body 122 includes two mounting parts 1221 and second connecting part 1222, two mounting parts 1221 are arranged at intervals, second connecting part 1222 is arranged between two mounting parts 1221 and is connected with two mounting parts 1221 respectively, and the other end of elastic member 40 is connected with second connecting part 1222.

[0080] Wherein, second frame body 122 can be composed of two plate-shaped mounting parts 1221 and second connecting part 1222 arranged independently, second frame body 122 can also be formed integrally by bending, second connecting part 1222 connects two mounting parts 1221, which is both a structural framework and a fixing point of elastic member 40.

[0081] Equivalently, first connecting part 1215 and second connecting part 1222 form the fixing point of elastic member 40, which ensures that elastic member 40 can accurately bear and release stress when working. One end of elastic member 40 is connected to first connecting part 1215, and the other end is connected to second connecting part 1222 to form a compact bridge, which effectively transmits the force between first frame body 121 and second frame body 122.

[0082] Continuing to refer to Figure 2 In some embodiments of the utility model, wheel assembly 20 further includes bearing 23 and shaft sleeve 24, shaft sleeve 24 is sleeved on adjusting shaft 22, bearing 23 is arranged at intervals on adjusting shaft 22 and located on both sides of shaft sleeve 24, and wheel body 21 is arranged on bearing 23.

[0083] Wherein, shaft sleeve 24 is assembled on the periphery of adjusting shaft 22, mainly used for isolating two bearings 23 arranged at intervals, preventing radial displacement of bearing 23 on adjusting shaft 22, and enhancing structural stability. Bearing 23 is distributed on both sides of shaft sleeve 24, bearing 23 directly contacts with adjusting shaft 22, bears the weight of wheel body 21, provides a low-resistance rotating interface at the same time, and ensures that wheel body 21 can rotate smoothly relative to adjusting shaft 22.

[0084] The utility model also provides a carrying vehicle, which comprises a carrying body and the universal wheel of any one of the embodiments, and the universal wheel is arranged at the bottom of the carrying body to provide support and balance for the carrying body. Since the carrying vehicle comprises the universal wheel described above, it has all the advantages described above, and the maintenance cost of the carrying vehicle can be reduced.

[0085] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been explained in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A universal wheel, characterized by, The application relates to a mounting assembly for a carrying body, comprising a mounting base and a mounting bracket, wherein the mounting base is adapted to be mounted to the carrying body, and the mounting bracket is rotationally connected to the mounting base. The mounting assembly further comprises a wheel assembly, a regulating assembly and a positioning member. The wheel assembly comprises a wheel body and an adjusting shaft, wherein the adjusting shaft is arranged through the mounting bracket, and the wheel body is arranged on the adjusting shaft and is rotationally arranged relative to the adjusting shaft. The regulating assembly comprises a regulating component and the positioning member, wherein the regulating component is rotationally arranged on the mounting bracket, the adjusting shaft is arranged through the regulating component and is kept relatively fixed with the regulating component, the rotation center of the adjusting shaft is arranged eccentrically relative to the rotation center of the regulating component, and the regulating component is provided with a plurality of positioning portions along the rotation center array, and the positioning member is arranged on the mounting bracket and is located on the rotation path of the regulating component and is adapted to cooperate with the positioning portions to limit the rotation of the regulating component.

2. The universal wheel of claim 1, wherein, At least one side of the mounting bracket is provided with a mounting hole. The regulating component comprises a regulating member and a fastening member, wherein the regulating member is arranged on the mounting hole and can rotate around the axis thereof, the regulating member is provided with a fixing hole, the center of the fixing hole is arranged eccentrically relative to the center of the mounting hole, the adjusting shaft is arranged through the fixing hole, and the fastening member is arranged on the end of the adjusting shaft.

3. The universal wheel of claim 2, wherein, The regulating member comprises a regulating body and a swivel body, wherein the swivel body is arranged on one side of the regulating body, and the axis of the swivel body coincides with the axis of the regulating body. The swivel body is arranged on the mounting hole and can rotate around the axis thereof to drive the regulating body to rotate synchronously, and the positioning portions are arranged on the outer circumferential surface of the regulating body. The fixing hole is arranged through the regulating body and the swivel body, and the center of the fixing hole is arranged eccentrically relative to the center of the swivel body.

4. The universal wheel according to any one of claims 1 to 3, characterized in that The mounting bracket comprises a first bracket body and a second bracket body, wherein the first side of the first bracket body is rotationally connected to the second bracket body, the second side of the first bracket body is limitingly matched with the second bracket body, and the first side and the second side are located on the opposite sides of the first bracket body. The first bracket body is rotationally connected to the mounting base, the regulating component and the positioning member are arranged on at least one side of the second bracket body.

5. The universal wheel of claim 4, wherein, The first side of the first bracket body is connected with a hinged shaft, the second bracket body is rotationally connected to the hinged shaft, the second side of the first bracket body is connected with a limiting shaft, and the second bracket body is adapted to abut to the limiting shaft. The axis centers of the adjusting shaft, the hinged shaft and the limiting shaft form a virtual triangle.

6. The universal wheel of claim 4, wherein, The first bracket body and the second bracket body are provided with an elastic member. When the second bracket body rotates relative to the first bracket body, the elastic member is compressed to be elastically deformed to realize a damping effect, and when the second bracket body keeps relatively static relative to the first bracket body, the elastic member restores the elastic deformation to play a supporting role.

7. The universal wheel of claim 6, wherein, The first frame body comprises a frame body and a supporting part, the supporting part is symmetrically arranged on both sides of the frame body, and the supporting part is formed by bending the frame body; a first extension part is formed by bending the frame body, a second extension part is formed by bending the supporting part, the first extension part and the second extension part intersect to form a first connecting part, and one end of the elastic member is connected with the first connecting part.

8. The universal wheel of claim 7, wherein, The second frame body comprises two mounting parts and a second connecting part, the two mounting parts are arranged at intervals, the second connecting part is arranged between the two mounting parts and connected with the two mounting parts respectively, and the other end of the elastic member is connected with the second connecting part.

9. The universal wheel according to any one of claims 1 to 3, wherein The wheel assembly further comprises a bearing and a shaft sleeve, the shaft sleeve is arranged outside the adjusting shaft, the bearing is arranged at intervals on the adjusting shaft and located on both sides of the shaft sleeve, and the wheel body is arranged on the bearing.

10. A handling vehicle, characterized by The carrying main body and the universal wheel according to any one of claims 1 to 9 are arranged at the bottom of the carrying main body.

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