Trolley hub with buffer structure

Abstract

The utility model relates to the technical field of small handcart hubs, and discloses a small handcart hub with a buffer structure, which comprises a rim, a connecting circular ring is mounted in the middle of the outer side of the rim, and a mounting circular ring is fixedly connected to the middle of the inner side of the connecting circular ring. A plurality of fixing square plates are fixedly connected to the inner wall of the connecting circular ring and the outer wall of the mounting circular ring at equal intervals, rotating round rods are rotatably connected to the adjacent sides of the two fixing square plates, connecting square plates are rotatably connected to the adjacent sides of the rotating round rods, and telescopic rods are fixedly connected to the middles of the fixing square plates. According to the utility model, the wheel rim is bumpy or impacted, the impact force promotes the rotating round rod and the connecting square plate to rotate, the fixed square plate is driven to move, the telescopic rod stretches out and draws back under the action of the fixed square plate, the spring absorbs impact energy and releases the impact energy, the buffering purpose is achieved, and through the procedures, the influence of external impact on the wheel hub is reduced, the stability of the trolley is protected, and the service life of the trolley is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to trolley wheel hub technical field especially, it relates to a trolley wheel hub with buffer structure. BACKGROUND

[0002] The wheel hub is the central part of the wheel, used to connect the wheel and the vehicle, mainly made of metal, bearing the weight of the vehicle and providing the installation position, it not only supports the tire, but also affects the appearance, performance and control of the vehicle.

[0003] The wheel hub of the trolley is the core component of the trolley wheel, it is the bridge connecting the wheel and the body, bearing the weight of the trolley and its load, mainly made of solid materials such as steel or aluminum alloy to ensure its durability and stability, the center of the wheel hub is mainly provided with bearings to reduce friction and make the wheel rotate smoothly, in the design of the trolley, the size and strength of the wheel hub must be matched with the expected use conditions to ensure the moving efficiency and safety of the trolley, in short, the wheel hub of the trolley is the key component to ensure its smooth driving and reliable loading, but in the process of use, due to the poor manufacturing process of part of the trolley wheel hub, the concentricity of the wheel hub is not enough, and it will shake when rotating, affecting the stability and comfort of the trolley, in the prior art, by standardizing the assembly process of the wheel hub and the related components of the axle and bearing, professional assembly tools and equipment are used to ensure that each component is installed in place, and the assembly gap is strictly controlled to avoid the eccentricity of the wheel hub caused by improper assembly, for example, a high-precision press is used for bearing press fitting to ensure the perpendicularity and concentricity of the bearing installation, however, in the daily use process, each vibration will produce a large impact force on the wheel hub itself, and long-term use will cause fatigue cracks and deformation damage of the wheel hub, reducing the overall service life of the trolley. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a trolley wheel hub with buffer structure, aiming at improving the problem that each vibration will produce a large impact force on the wheel hub itself in the prior art, and long-term use will cause fatigue cracks and deformation damage of the wheel hub, reducing the overall service life of the trolley.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a small trolley wheel hub with buffer structure, including the rim, the outer side middle part of rim is installed with the connecting ring, the inner side middle part of connecting ring is fixedly connected with the installation ring, the inner wall of connecting ring and the outer wall of installation ring are all equidistant fixedly connected with a plurality of fixed square boards, the adjacent side of two fixed square boards is all rotatably connected with the rotating round bar, the adjacent side of a plurality of rotating round bars is all rotatably connected with the connecting square board, the middle part of a plurality of fixed square boards is all fixedly connected with the telescopic rod, the outer side of a plurality of telescopic rods is all installed with the spring, the top of rim is installed with the mounting mechanism, and the mounting mechanism is used for the fixation of rim.

[0006] As a further description of the above technical scheme:

[0007] The mounting mechanism includes two clamping bent rods, two clamping bent rods are installed at the top of the front and rear ends of the rim respectively, the adjacent side middle part of two clamping bent rods is slidably connected with a sliding rod, the top of the sliding rod is rotatably connected with a rotating cylinder, the left and right ends of the rotating cylinder are fixedly connected with a second connecting rod, the side away from the two second connecting rods is rotatably connected with a first connecting rod, the top of two clamping bent rods is fixedly connected with a fixed short column, and the other end of the first connecting rod is rotatably connected with the outer side of the fixed short column.

[0008] As a further description of the above technical scheme:

[0009] The top of the rotating cylinder is fixedly connected with a rotating disc, and the top rear side of the rotating disc is fixedly connected with a fixed cylinder.

[0010] As a further description of the above technical scheme:

[0011] The bottom adjacent side of two clamping bent rods is fixedly connected with a fixed ring, and the outer side of the fixed ring is equidistantly threadedly connected with a plurality of first screws.

[0012] As a further description of the above technical scheme:

[0013] The outer side of the connecting ring is equidistantly provided with a plurality of anti-skid grooves.

[0014] As a further description of the above technical scheme:

[0015] The front and rear sides of the rim are equidistantly provided with a plurality of heat dissipation grooves, and the inside of the heat dissipation groove is installed with a mounting ring.

[0016] As a further description of the above technical scheme:

[0017] The top of the front side of the rim is fixedly connected with a clamping groove plate, and the inside of the clamping groove plate is provided with a warning sticker.

[0018] As a further description of the above technical solutions:

[0019] The inner part of the fixing ring is provided with a signboard, the rear side of the wheel rim is provided with a reflective strip, and the outer side of the reflective strip is equidistantly and screwedly connected with a plurality of second screws.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, when the trolley runs on uneven road surface, the wheel rim is subjected to bumping or impact, the connecting circular ring and the mounting circular ring are stably connected through the fixing square plate, the impact force causes the rotating circular rod and the connecting square plate to rotate, drives the fixed square plate to displace, the telescopic rod is telescoped under the action of the fixed square plate, the spring absorbs impact energy and releases, the buffering purpose is achieved, through the above process, the influence of external impact on the wheel hub is reduced, and the stability and service life of the trolley are protected.

[0022] 2. In the utility model, when the wheel rim is fixed, the rotating disc is rotated, the rotating cylinder is rotated, the second connecting rod is transmitted to the first connecting rod, the clamping bent rod is pulled to be tightened to the center of the wheel rim, through the above process, the two clamping bent rods drive the wheel rim to be close to the middle, the wheel rim is fixed, and the stable and safe running of the trolley is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A three-dimensional view of the trolley wheel hub with a buffering structure is provided for the utility model;

[0024] Figure 2 A rear view of the trolley wheel hub with a buffering structure is provided for the utility model;

[0025] Figure 3 A top view of the trolley wheel hub with a buffering structure is provided for the utility model;

[0026] Figure 4 A partial structure sectional view of the trolley wheel hub with a buffering structure is provided for the utility model;

[0027] Figure 5 A partial structure schematic view of the trolley wheel hub with a buffering structure is provided for the utility model.

[0028] LEGEND:

[0029] 1, wheel rim; 2, mounting mechanism; 201, clamping bent rod; 202, sliding rod; 203, fixed stub; 204, first connecting rod; 205, rotating cylinder; 206, second connecting rod; 3, clamping groove plate; 4, warning sticker; 5, heat dissipation groove; 6, fixed ring; 7, signboard; 8, fixed ring; 9, first screw; 10, connecting ring; 11, anti-skid groove; 12, rotating disc; 13, fixed cylinder; 14, reflective strip; 15, second screw; 16, mounting ring; 17, mounting ring; 18, fixed square plate; 19, connecting square plate; 20, rotating circular rod; 21, telescopic rod; 22, spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Referring to Figure 1 , Figure 2 and Figure 4 , the utility model provides an embodiment: a small trolley wheel hub with buffer structure, including wheel rim 1, the outer side middle part of wheel rim 1 is installed with connecting ring 10, the inner side middle part of connecting ring 10 is fixedly connected with mounting ring 17, the inner wall of connecting ring 10 and the outer wall of mounting ring 17 are all equidistantly fixedly connected with multiple fixed square plates 18, the adjacent side of two fixed square plates 18 is all rotatably connected with rotating circular rod 20, the adjacent side of multiple rotating circular rods 20 is all rotatably connected with connecting square plate 19, the middle part of multiple fixed square plates 18 is all fixedly connected with telescopic rod 21, the outer side of multiple telescopic rods 21 is all installed with spring 22, through the installation of telescopic rod 21, avoid the unnecessary deformation of spring 22, the top of wheel rim 1 is installed with mounting mechanism 2, and mounting mechanism 2 is used for the fixation of wheel rim 1, the front and rear sides of wheel rim 1 are all equidistantly provided with multiple heat dissipation grooves 5, and mounting ring 16 is installed in heat dissipation groove 5, through the establishment of heat dissipation groove 5, the heat inside it is quickly dissipated, the front top of wheel rim 1 is fixedly connected with clamping groove plate 3, and warning sticker 4 is arranged in the inside of clamping groove plate 3, through the installation of clamping groove plate 3, the replacement of warning sticker 4 is facilitated;

[0032] Specifically, when the trolley runs on uneven road surface, the wheel rim 1 encounters bumps or impacts, the connecting ring 10 as a key component of the buffer structure begins to play a role, through the stable connection of the connecting ring 10 and the mounting ring 17 through the fixed square plate 18, at this time, the impact force causes the rotating round rod 20 and the connecting square plate 19 to rotate, thereby driving the fixed square plate 18 to displace, the telescopic rod 21 is telescopic under the action of the fixed square plate 18, at the same time, the spring 22 absorbs the impact energy in the telescopic process, and is released subsequently, so as to achieve the purpose of buffering, through the above process, the influence of external impact on the hub is reduced, and the stability and service life of the trolley are protected.

[0033] With reference to Figure 1 , Figure 3 and Figure 5 , the mounting mechanism 2 comprises two clamping bent rods 201, the two clamping bent rods 201 are respectively installed at the top front and rear ends of the wheel rim 1, the adjacent middle parts of the two clamping bent rods 201 are slidably connected with a sliding rod 202, the top of the sliding rod 202 is rotatably connected with a rotating cylinder 205, the left and right ends of the rotating cylinder 205 are fixedly connected with a second connecting rod 206, through the installation of the rotating cylinder 205, the rotation of the second connecting rod 206 is facilitated, the faraway sides of the two second connecting rods 206 are rotatably connected with a first connecting rod 204, the top of the two clamping bent rods 201 is fixedly connected with a fixed stub 203, the other end of the first connecting rod 204 is rotatably connected with the outside of the fixed stub 203, the top of the rotating cylinder 205 is fixedly connected with a rotating disc 12, the top rear side of the rotating disc 12 is fixedly connected with a fixed cylinder 13, through the installation of the rotating disc 12, the rotation of the rotating cylinder 205 is facilitated, the adjacent sides of the bottoms of the two clamping bent rods 201 are fixedly connected with a fixed ring 8, a plurality of first screws 9 are equidistantly and threadedly connected with the outside of the fixed ring 8, through the installation of the fixed ring 8, the device is installed more stably;

[0034] Specifically, in order to fix the wheel rim 1, first, the rotating disc 12 is rotated, the rotating cylinder 205 at the top is driven to rotate, the rotating action of the rotating cylinder 205 is transmitted to the first connecting rod 204 through the second connecting rod 206, since the other end of the first connecting rod 204 is rotatably connected with the fixed stub 203, the clamping bent rod 201 can be pulled to the center of the wheel rim 1, through the above process, through the synergistic effect of the two clamping bent rods 201, the wheel rim 1 is fixed to the center, so that the trolley can be kept stable and safe during driving.

[0035] With reference to Figure 1 , Figure 2 and Figure 3The outer side of the connecting ring 10 is equidistantly provided with a plurality of anti-skid grooves 11, the front side of the wheel rim 1 is fixedly connected with a fixing ring 6, the inside of the fixing ring 6 is mounted with a signboard 7, the rear side of the wheel rim 1 is provided with a reflective strip 14, and the outer side of the reflective strip 14 is equidistantly and threadedly connected with a plurality of second screws 15.

[0036] Specifically, the anti-skid grooves 11 are arranged to avoid unnecessary sliding, the reflective strip 14 is arranged to facilitate observation in poor light, and the signboard 7 is arranged to facilitate reminding of the user.

[0037] Working principle: when the trolley runs on uneven road surface, the wheel rim 1 encounters bumps or impacts, and the connecting ring 10 as a key component of the buffer structure begins to play a role, the connecting ring 10 and the mounting ring 17 are stably connected through the fixed square plate 18, at this time, the impact force causes the rotating circular rod 20 and the connecting square plate 19 to rotate, thereby driving the fixed square plate 18 to displace, the telescopic rod 21 is telescoped under the action of the fixed square plate 18, at the same time, the spring 22 absorbs impact energy in the telescoping process and is released subsequently, so as to achieve the purpose of buffering, through the above process, the influence of external impact on the wheel hub is reduced, and the stability and service life of the trolley are protected.

[0038] When it is necessary to fix the wheel rim 1, first, the rotating disc 12 is rotated, then the rotating cylinder 205 at the top is rotated, the rotation of the rotating cylinder 205 is transmitted to the first connecting rod 204 through the second connecting rod 206, since the other end of the first connecting rod 204 is rotationally connected with the fixed short column 203, the clamping bent rod 201 is pulled to the center of the wheel rim 1, through the above process, the two clamping bent rods 201 drive the wheel rim 1 to move towards the center, so that the wheel rim 1 can be fixed, and the stability and safety of the trolley during running are ensured.

[0039] Finally, it should be noted that: the above is only a preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A trolley hub with a cushioning structure, comprising a rim (1), characterized in that: The outer middle part of the rim (1) is provided with a connecting ring (10), the inner middle part of the connecting ring (10) is fixedly connected with a mounting ring (17), the inner wall of the connecting ring (10) and the outer wall of the mounting ring (17) are both fixedly connected with a plurality of fixed square plates (18) at equal distances, the adjacent side of two fixed square plates (18) is rotatably connected with a rotating circular rod (20), the adjacent side of a plurality of rotating circular rods (20) is rotatably connected with a connecting square plate (19), the middle part of a plurality of fixed square plates (18) is fixedly connected with an extension rod (21), the outer side of a plurality of extension rods (21) is provided with a spring (22), the top of the rim (1) is provided with a mounting mechanism (2), and the mounting mechanism (2) is used for fixing the rim (1).

2. A small trolley wheel hub with a buffer structure according to claim 1, characterized in that: The mounting mechanism (2) comprises two clamping bent rods (201), two clamping bent rods (201) are arranged at the top of the rim (1) front and rear, the adjacent middle part of two clamping bent rods (201) is slidably connected with a sliding rod (202), the top of the sliding rod (202) is rotatably connected with a rotating cylinder (205), the left and right ends of the rotating cylinder (205) are fixedly connected with a second connecting rod (206), the side away from each other of two second connecting rods (206) is rotatably connected with a first connecting rod (204), the top of two clamping bent rods (201) is fixedly connected with a fixed short column (203), and the other end of the first connecting rod (204) is rotatably connected with the outer side of the fixed short column (203).

3. A small wheeled trolley hub with a cushioning structure according to claim 2, wherein: The top of the rotating cylinder (205) is fixedly connected with a rotating disc (12), and the top rear side of the rotating disc (12) is fixedly connected with a fixed cylinder (13).

4. The small wheeled trolley hub with a cushioning structure according to claim 2, characterized in that: The bottom adjacent side of two clamping bent rods (201) is fixedly connected with a fixed ring (8), and the outer side of the fixed ring (8) is threadedly connected with a plurality of first screws (9) at equal distances.

5. The small wheeled cart hub with a cushioning structure of claim 1, wherein: The outer side of the connecting ring (10) is provided with a plurality of anti-skid grooves (11) at equal distances.

6. The small wheeled cart hub with a cushioning structure of claim 1, wherein: The front and rear sides of the rim (1) are provided with a plurality of heat dissipation grooves (5) at equal distances, and the inside of the heat dissipation groove (5) is provided with a mounting ring (16).

7. The small wheeled cart hub with a cushioning structure of claim 1, wherein: The top of the front side of the rim (1) is fixedly connected with a clamping groove plate (3), and the inside of the clamping groove plate (3) is provided with a warning sticker (4).

8. The small wheeled cart hub with a cushioning structure of claim 1, wherein: The middle part of the front side of the rim (1) is fixedly connected with a fixed ring (6), the inside of the fixed ring (6) is provided with a notice board (7), the rear side of the rim (1) is provided with a reflective strip (14), and the outer side of the reflective strip (14) is threadedly connected with a plurality of second screws (15) at equal distances.

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