Spoke structure special for trolley

Abstract

A spoke structure special for a trolley is characterized in that the spoke structure comprises an outer wheel frame, a hub mounting seat and a shaft seat, a first spoke, a second spoke, a third spoke, a fourth spoke, a fifth spoke and a sixth spoke are arranged on the outer wheel frame, a plug pin is arranged on the hub mounting seat, and a pawl is arranged on the hub mounting seat. According to the spoke structure special for the trolley, the rotating form of the spoke structure special for the trolley can be changed by inserting or pulling out the plug pins according to application scenes, the abraded part of the spoke structure can be detached and replaced, and the problems that spokes of an existing trolley cannot rotate in one direction when the trolley slides uphill, and parts need to be integrally replaced and maintained after working abrasion are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the invention relates to the spoke belongs to spoke technical field, concretely relates to special spoke structure of handcart. BACKGROUND

[0002] Traditional handcart as a kind of active nimble consignment device, often need to be pushed and pulled uphill, traditional handcart spoke is bidirectional rotation, and traditional handcart is uphill when laboring and will be dangerous to downhill car, and traditional handcart spoke structure needs to replace spoke as a whole and waste material when subsequent maintenance, and now need a kind of special spoke structure of handcart, to improve the above problems. SUMMARY

[0003] In view of the problems in the background art, the utility model aims at overcoming the defects of prior art, providing a kind of special spoke structure of handcart, to solve the problem that handcart uphill spoke cannot be unidirectional rotation and spoke needs to be replaced as a whole and maintained after working wear and tear.

[0004] A kind of special spoke structure of handcart, including outer wheel frame, wheel hub mounting seat and axle seat, the first spoke, second spoke, third spoke, fourth spoke, fifth spoke and sixth spoke are fixedly connected on the outer wheel frame, the first spoke, second spoke, third spoke, fourth spoke, fifth spoke and sixth spoke are uniformly distributed on the inner diameter arc of the outer wheel frame, the wheel hub mounting seat is provided with a latch, the latch is gap fitted with pawl, the wheel hub mounting seat side wall is provided with the limiting pin penetrating two side walls.

[0005] Preferably, the first spoke, the second spoke, the third spoke, the fourth spoke, the fifth spoke and the sixth spoke are fixedly connected with the axle seat, the first spoke, the second spoke, the third spoke, the fourth spoke, the fifth spoke and the sixth spoke are uniformly distributed on the outer shape of the axle seat, the first spoke, the second spoke, the third spoke, the fourth spoke, the fifth spoke and the sixth spoke are fixedly connected with the ratchet wheel, the connection mode of multiple spokes and ratchet wheels can be selected bolt connection to facilitate subsequent disassembly and replacement of worn parts.

[0006] Preferably, the axle seat is provided with an axle hole, and the axle hole is gap fitted with an axle.

[0007] Preferably, the limiting pin is provided with a first threaded hole.

[0008] Preferably, the limiting pin away from the wheel hub mounting seat is provided with, and the handle is provided with a second threaded hole.

[0009] Preferably, the handle comprises a bolt, and the bolt is sequentially threaded through the second threaded hole and the first threaded hole from top to bottom and is threadedly connected.

[0010] In actual application, the bolt is used in cooperation with the second threaded hole and the first threaded hole to be threadedly connected, so as to be fixedly installed on the limiting pin for limiting.

[0011] Preferably, the hub mounting seat side wall is provided with a stop pin hole, and the hub mounting seat is provided with a transition round corner and a second transition round corner.

[0012] Preferably, the connection between the plurality of spokes and the shaft seat can use a bolt connection so as to be disassembled and replaced with a worn part subsequently.

[0013] Preferably, the size of the ratchet wheel and the pawl is matched.

[0014] Preferably, the ratchet wheel and the pawl are sprayed with a wear-resistant metal protective layer on the outer surface to avoid excessive wear.

[0015] Preferably, the ratchet tooth structure on the ratchet wheel is three groups in a uniform distribution.

[0016] In summary, the beneficial effects of the present application are:

[0017] 1. The original spoke structure is converted into a plurality of single parts, so that the worn parts can be replaced in the subsequent use process.

[0018] 2. The pawl structure limits the rotation direction of the hub, and when the limiting pin is in the preset position, the rotation direction of the pawl is limited. Due to the transmission matching relationship between the pawl and the ratchet wheel, the ratchet wheel can only rotate in one direction, so that the spoke fixedly connected with the ratchet wheel can only rotate in one direction, thereby preventing the vehicle from sliding uphill. When the limiting pin is pulled out, the pawl loses the rotation limitation, and the pawl loses the function of limiting the one-way rotation of the ratchet wheel, so that the outer wheel frame can rotate in both directions. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an overall structure installation schematic view of the present application;

[0020] Figure 2 It is an overall structure hub mounting seat structure schematic view of the present application;

[0021] Figure 3 It is a shaft seat structure schematic view of the present application;

[0022] Figure 4 It is a cut partial structure schematic view of the present application;

[0023] Figure 5 It is the first spoke structure schematic view of the utility model;

[0024] Figure 6 It is the limiting pin structure schematic view of the second embodiment of the utility model;

[0025] Figure 7 It is the cut partial structure schematic view of the second embodiment of the utility model.

[0026] In the drawing: 1, outer wheel frame;011, first spoke;012, second spoke;013, third spoke;014, fourth spoke;015, fifth spoke;016, sixth spoke;2, wheel hub mounting seat;021, pawl;022, bolt;023, wheel shaft;0211, stop pin hole;0212, first transition fillet;0213, second transition fillet;0214, bolt;0215, second threaded hole;0216, handle;0217, first threaded hole;3, limiting pin;4, axle seat;041, axle hole;5, ratchet wheel. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantage of the present application more clear, the present application is further described in detail below with the combination of the drawings and specific embodiments. Although the example embodiments are disclosed in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more easily understood and to completely convey the concept of the present application to those skilled in the art.

[0028] In the description of the present application, the description of the terms "some embodiments", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the 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.

[0029] In the present application, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" 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 present application can be understood according to the specific circumstances.

[0030] Example one

[0031] Please refer to Figure 1 , the outer wheel frame 1 is uniformly fixedly connected with first spoke (011), second spoke (012), third spoke (013), fourth spoke (014), fifth spoke (015) and sixth spoke (016) along the inner diameter arc, and the group of spokes is bolted with ratchet wheel 5.

[0032] Please refer to Figure 2 , the latch 022 is fixedly connected to the inner wall of the hub mounting seat 2, the pawl 021 is provided on the latch 022 and is in clearance fit with the latch 022, and the limiting pin 3 is provided on the side wall of the hub mounting seat 2 and penetrates through both side walls of the hub mounting seat, and the limiting pin 3 is in clearance fit with the hub mounting seat 2.

[0033] Further, the position of the limiting pin 3 can be adjusted according to the needs to ensure that the pawl 021 and the ratchet wheel 5 can produce one-way stop effect.

[0034] Please refer to Figure 3 , the shaft hole 041 is provided at the center of the shaft seat 4 and penetrates through the shaft seat 4, the shaft hole 041 is in clearance fit with the wheel shaft 023, and the shaft seat 4 is provided with a plurality of connecting grooves in clearance fit with the corresponding spokes.

[0035] Please refer to Figure 4 , the sharp angle part of the pawl 021 and the ratchet wheel 5 should be rounded to prevent sharp parts from colliding and rubbing with each other during work, accelerating the wear of the pawl 021 and the ratchet wheel 5.

[0036] Further, the pawl 021 is movably connected with the latch 022, and the outer surface of the latch 022 needs to be pre-coated with lubricating oil.

[0037] Further, the outer surface of the wheel shaft 023 needs to be pre-coated with lubricating oil.

[0038] Further, the limiting pin 3 is made of impact-resistant and fatigue-resistant metal material.

[0039] Example two

[0040] Please refer to Figures 6-7 Further improvement is made on the basis of embodiment 1, and it is found that the structure of the limiting pin 3 is not firm during production work, and the cooperation gap between the limiting pin and the hub mounting seat 2 increases after multiple pulling out, and the vibration caused by the uneven ground during work can make the limiting pin deviate from the predetermined working position, and then the pawl 021 cannot produce the original effect, and the vehicle sliding causes danger.

[0041] In order to make the limiting pin not need to be pulled out to make the ratchet wheel 3 lose the original effect, the structure of the original limiting pin 3 is changed, and a first threaded hole 0215 is arranged at one end of the limiting pin 3 after the change, and a handle and a limiting pin bolt are connected through a second threaded hole 0217 and the first threaded hole 0215.

[0042] The stop pin hole 0211 is arranged on the side wall of the hub mounting seat 2, and considering that the original hub mounting seat 2 structure will affect the subsequent rotation of the limiting pin 3, the first transition round corner 0212 and the second transition round corner 0213 are additionally arranged to assist the rotation of the limiting pin.

[0043] The limiting pin can be operated by one hand, and during use, the limiting pin is pulled up and rotated, so that the limiting pin 3 is slid into the stop pin hole 0211 to make the ratchet wheel lose the function of one-way rotation.

[0044] The use process and working principle of the utility model are as follows:

[0045] The first spoke 011, the second spoke 012, the third spoke 013, the fourth spoke 014, the fifth spoke 015 and the sixth spoke 016 are bolted with the shaft seat 4 and the ratchet wheel 5, the above-mentioned installed parts are bolted with the outer wheel frame 1, and the limiting pin 3 is installed in the original hub mounting seat 2 in the predetermined working position.

[0046] The rotation direction of the pawl 021 is limited by the limiting pin 3, and then the rotation direction of the ratchet wheel 5 is limited, so that the rotation direction of the ratchet wheel 5 becomes one-way rotation, and the one-way rotation of the ratchet wheel 5 is limited, and then the rotation direction of the outer wheel frame 1 is limited, and the problem of uphill and downhill sliding of the handcart is solved, and the special spoke structure of the handcart is not integrally cast, and the worn parts can be replaced according to the wear condition of each part in the later period, which is more material-saving.

[0047] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application but are not restrictive. Although the present application is described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A wheel spoke structure for a handcart, characterized by, Including outer wheel frame (1) and wheel hub mounting seat (2) and axle seat (4), first spoke (011), second spoke (012), third spoke (013), fourth spoke (014), fifth spoke (015) and sixth spoke (016) are fixedly connected on the outer wheel frame (1), first spoke (011), second spoke (012), third spoke (013), fourth spoke (014), fifth spoke (015) and sixth spoke (016) are uniformly distributed on the outer wheel frame (1) along the inner diameter arc, the wheel hub mounting seat (2) is provided with a limit pin (3), the wheel hub mounting seat (2) is provided with a pawl (021), the first spoke (011), the second spoke (012), the third spoke (013), the fourth spoke (014), the fifth spoke (015) and the sixth spoke (016) are fixedly connected on the axle seat (4), the first spoke (011), the second spoke (012), the third spoke (013), the fourth spoke (014), the fifth spoke (015) and the sixth spoke (016) are uniformly distributed on the axle seat (4) along the shape, the first spoke (011), the second spoke (012), the third spoke (013), the fourth spoke (014), the fifth spoke (015) and the sixth spoke (016) are provided with a ratchet wheel (5).

2. A spoke structure for a handcart according to claim 1, wherein The axle seat (4) is provided with an axle hole (041), the axle hole (041) is provided with an axle (023), the wheel hub mounting seat (2) is provided with a latch (022), the latch (022) is provided with a pawl (021) in clearance fit.

3. A spoke structure for a handcart according to claim 1, wherein The limit pin (3) is provided with a first threaded hole (0215).

4. A wheel and spoke assembly for a trolley according to claim 3 wherein, The limit pin (3) away from the wheel hub mounting seat (2) is provided with a handle (0216), and the handle is provided with a second threaded hole (0217).

5. A wheel and spoke arrangement for a trolley as claimed in claim 4 wherein, The handle (0216) includes a bolt (0214), and the bolt (0214) passes through the second threaded hole (0217) and the first threaded hole (0215) from top to bottom in sequence and is threadedly connected, so that the bolt (0214) is used in cooperation with the second threaded hole (0217) and the first threaded hole (0215) to be threadedly connected, for fixing and mounting the handle (0216) on the limit pin (3) and limiting.

6. A wheel and spoke assembly for a cart according to claim 1 wherein, The side wall of the wheel hub mounting seat (2) is provided with a stop pin hole (0211), and the wheel hub mounting seat (2) is provided with a round corner (0212) and a second transition round corner (0213).

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