A replaceable bicycle rear carrier

Abstract

The application discloses a bicycle rear carrier convenient to replace, belongs to the technical field of bicycle accessories, and aims to provide a bicycle rear carrier convenient to disassemble and replace, which comprises a carrier frame, the carrier frame comprises a rear bridge, the two ends of the rear bridge are each provided with a side bridge, each side bridge is provided with a traction arm connected through a cantilever at an end away from the rear bridge, and the end of each traction arm is provided with a half hoop ring; the lower surface of the side bridge is fixedly connected with a vertical support, and the lower end of the vertical support is provided with a vertical clasp ring. The application designs a horizontal clasp ring structure below the front support, utilizes the deformation resistance of the front support to limit the interval between the two vertical clasp rings at the lower ends of the two vertical supports, thereby maintaining stable engagement without installing bolts at the two ends of the rear wheel shaft of the bicycle for auxiliary constraint, and the half hoop ring structure is designed at the front end of the traction arm to constrain the positions of the horizontal clasp ring and the vertical clasp ring, so that the whole carrier is stable and convenient to disassemble and replace.

Description

Technical Field

[0001] This application relates to the field of bicycle accessory technology, and more particularly to a bicycle rear rack that is easy to replace. Background Technology

[0002] The rear racks on existing bicycles are generally limited at the factory. They either don't have a rear rack, such as on mountain bikes, or they do have one, such as on women's bicycles. Bicycles with racks are usually welded and fixed in place, and are secured at both ends of the rear wheel axle with bolts. They are not easy to disassemble or replace, thus limiting the function of the bicycle rear rack and making its use relatively simple. Utility Model Content

[0003] The purpose of this application is to provide a bicycle rear rack that is easy to disassemble and replace.

[0004] To achieve the above objectives, this application provides a replaceable bicycle rear rack: comprising a rack frame, the rack frame including a rear axle, both ends of the rear axle having side axles, each side axle having a traction arm cantilevered to the end away from the rear axle, each traction arm having a semi-hoop at its end, the two semi-hoops being symmetrical and their sides adapted for fixed connection by bolts, a longitudinal bracket fixedly connected to the lower surface of the side axle, the lower end of the longitudinal bracket having a longitudinal retaining ring, a front bracket fixedly connected between the front side of the longitudinal bracket and the lower surface of the side axle, the lower side of the front bracket having a front support arm, the lower end of the front support arm having a transverse retaining ring providing auxiliary constraint and limiting the stability of the relative distance between the two longitudinal retaining rings.

[0005] As a preferred embodiment, the two side axles are parallel and perpendicular to the rear axle; the two cantilever arms are on the same straight line and perpendicular to the side axles; the traction arm is perpendicular to the connected cantilever arm; the main body of the rack frame is rectangular; and the cantilever arms extend in the direction of the bicycle seat.

[0006] As a preferred embodiment, each of the semi-hoops has a rear connecting plate between itself and the traction arm, and the two rear connecting plates have aligned rear connecting holes suitable for bolts to pass through for tightening and fixing.

[0007] As a preferred embodiment, each of the semi-hoops has a front connecting plate on the side facing away from the traction arm, and the two front connecting plates have aligned front connecting holes suitable for bolts to pass through, further reinforcing and stabilizing the semi-hoops on the outside of the bicycle seat support column.

[0008] As a preferred embodiment, the upper end of the longitudinal support has a support arm, which is parallel to and fixedly connected to the side bridge; the upper end of the front support has a first upper support plate and the lower end has a first lower support plate, which is parallel to and fixedly connected to the side bridge, and the first lower support plate is parallel to and fixedly connected to the longitudinal support, thereby increasing the welding area and improving the structural strength.

[0009] As a preferred embodiment, a rear support is fixedly connected between the rear side of the longitudinal support and the lower surface of the side bridge. The upper end of the rear support has a second upper support plate and the lower end has a second lower support plate. The second upper support plate is parallel to the side bridge and is fixedly connected to the side bridge. The second lower support plate is parallel to the longitudinal support and is fixedly connected to the longitudinal support. This is also a bending design to increase the welding area.

[0010] As a preferred embodiment, a pressure-sharing assembly is provided between the two side axles. The pressure-sharing assembly includes a support frame fixedly connected to the side axle, and a plurality of support plates are fixedly connected to the support frame. Each support plate is fixedly connected to the two side axles at both ends, thereby providing the side axles with pressure to suppress lateral compression deformation.

[0011] As a preferred embodiment, the rear axle and the support frame are connected together by a configuration frame, which includes a longitudinal mounting plate with at least two connection holes. The upper edge of the mounting plate is fixedly connected to the rear axle and the support frame by a fixing plate to ensure stable configuration.

[0012] Compared with the prior art, the beneficial effects of this application are as follows: (1) By designing a horizontal retaining ring structure under the front support, the distance between the two longitudinal retaining rings at the lower end of the two longitudinal supports is stabilized by utilizing the front support's ability to resist deformation. Thus, the two ends of the bicycle rear wheel axle do not need to be fitted with bolts for auxiliary constraint, and the meshing stability can be maintained. Furthermore, a semi-hoop ring structure is designed at the front end of the traction arm to constrain the position of the horizontal and longitudinal retaining rings, so that the entire rack can be both stable and easy to disassemble and replace. (2) The design forms multiple triangular structures by rationally designing the longitudinal support, front support and rear support, so that the shelf frame that is in direct contact with the goods can get sufficient support, thereby ensuring good stability and load-bearing capacity. Attached Figure Description

[0013] Figure 1 This is a first three-dimensional structural diagram of the easily replaceable bicycle rear rack.

[0014] Figure 2 This is a schematic diagram of the second three-dimensional structure of the easily replaceable bicycle rear rack.

[0015] Figure 3 This is a three-dimensional structural diagram of the longitudinal support of the easily replaceable bicycle rear rack.

[0016] Figure 4 This is a three-dimensional structural diagram of the front support of the easily replaceable bicycle rear rack.

[0017] Figure 5 This is a three-dimensional structural diagram of the rear support of this easily replaceable bicycle rear rack.

[0018] Figure 6 This is a three-dimensional structural diagram of the configuration frame for the easily replaceable bicycle rear rack.

[0019] Figure 7 This is a three-dimensional structural diagram of the frame of the easily replaceable bicycle rear rack.

[0020] Figure 8 This is a three-dimensional structural diagram of the pressure-distributing component of the easily replaceable bicycle rear rack.

[0021] In the diagram: 1. Shelf frame; 101. Rear axle; 102. Side axle; 103. Cantilever; 104. Traction arm; 105. Rear connecting plate; 106. Rear connecting hole; 107. Half hoop; 108. Front connecting plate; 109. Front connecting hole; 2. Longitudinal support; 201. Support arm; 202. Longitudinal retaining ring; 3. Front support; 301. First upper support plate; 302. First lower support plate; 303. Front support arm; 304. Horizontal retaining ring; 4. Rear support; 401. Second upper support plate; 402. Second lower support plate; 5. Configuration rack; 501. Fixing plate; 502. Mounting plate; 503. Connecting hole; 6. Pressure distribution assembly; 601. Support frame; 602. Support plate. Detailed Implementation

[0022] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0024] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0026] like Figure 1-8 The easily replaceable bicycle rear rack shown includes a rack frame 1, which is generally rectangular and can hold goods. The rack frame 1 includes a horizontal rear axle 101, with horizontal side axles 102 at both ends of the rear axle 101. The two side axles 102 extend in the same parallel direction and are perpendicular to the rear axle 101. Each side axle 102 is connected to a traction arm 104 via a cantilever 103 at the end away from the rear axle 101. Under normal circumstances, the two cantilever arms 103 are on the same straight line and are perpendicular to the side axles 102. The traction arm 104 is perpendicular to the connected cantilever arm 103, so the two traction arms 104 are parallel and close to each other when not under load.

[0027] Each traction arm 104 has a semi-circular ring 107 at its end. The horizontal cross-section of the semi-circular ring 107 is a semi-circular ring. Two semi-circular rings 107 can form a complete ring. The two semi-circular rings 107 are symmetrical and their sides can be fixedly connected by bolts. In order to ensure that the bolts can apply sufficient restraint force, each semi-circular ring 107 has a rear connecting plate 105 between it and the traction arm 104. The two rear connecting plates 105 are parallel and have aligned rear connecting holes 106 for bolts to pass through. Normally, each rear connecting plate 105 only needs to have one rear connecting hole 106. Each semi-circular ring 107 has a front connecting plate 108 on the side facing away from the traction arm 104. The two front connecting plates 108 are parallel and have aligned front connecting holes 109 for bolts to pass through. Each front connecting plate 108 has at least two front connecting holes 109 to ensure that the two semi-circular rings 107 can be restrained by at least three bolts, thereby stably holding the cylindrical support column under the bicycle seat.

[0028] A longitudinal support 2 is fixedly connected to the lower surface of the side axle 102. The upper end of the longitudinal support 2 has a support arm 201, which is parallel to and fixedly connected to the side axle 102. The lower end of the longitudinal support 2 has a longitudinal retaining ring 202 for engaging with both ends of the bicycle's rear wheel axle, providing stable longitudinal support. A front support 3 is fixedly connected between the front side of the longitudinal support 2 and the lower surface of the side axle 102. The lower side of the front support 3 has a front support arm 303, and the lower end of the front support arm 303 has a transverse retaining ring 304 for engaging with the bicycle's rear wheel axle. The diagonal brace engages to provide auxiliary restraint for the front support arm 303. The front bracket 3 is made of high-strength alloy steel, which is not easily bent by the auxiliary support provided by the front support arm 303. The upper end of the front bracket 3 has a first upper support plate 301 and the lower end has a first lower support plate 302. The first upper support plate 301 is parallel to the side axle 102 and is fixedly connected to the side axle 102. The first lower support plate 302 is parallel to the longitudinal bracket 2 and is fixedly connected to the longitudinal bracket 2. The parallel part generated after bending can effectively increase the welding area, thereby improving the connection stability between components.

[0029] A rear support 4 is fixedly connected between the rear side of the longitudinal support 2 and the lower surface of the side bridge 102. The upper end of the rear support 4 has a second upper support plate 401 and the lower end has a second lower support plate 402. The second upper support plate 401 is parallel to the side bridge 102 and is fixedly connected to the side bridge 102. The second lower support plate 402 is parallel to the longitudinal support 2 and is fixedly connected to the longitudinal support 2. The rear support 4 further increases the support force on the shelf frame 1, thereby improving the structural stability of the entire shelf. The second upper support plate 401 and the second lower support plate 402 at the upper and lower ends of the rear support 4 are formed by bending, which is also to increase the welding area and improve the connection stability.

[0030] A pressure-distributing assembly 6 is provided between the two side axles 102 to increase the support area and reduce the local pressure on goods placed on the shelf. The pressure-distributing assembly 6 includes a support frame 601 fixedly connected to the side axles 102. The support frame 601 supports the two side axles 102 and can effectively prevent the side axles 102 from being squeezed and deformed when under pressure. Several support plates 602 are fixedly connected to the support frame 601. The two ends of each support plate 602 are fixedly connected to the two side axles 102 respectively. The upper surface of the support plate 602 is usually flush with the shelf. The upper surface of frame 1 is flush with the upper surface of support frame 601, which is not higher than the upper surface of frame 1. The rear axle 101 and support frame 601 are connected to a configuration frame 5. The configuration frame 5 includes a longitudinal mounting plate 502, which can be used to install nameplates or bicycle taillights. The mounting plate 502 has at least two connecting holes 503 for connecting parts to pass through and fix the nameplate or taillight. The upper edge of the mounting plate 502 is fixedly connected to the rear axle 101 and support frame 601 through a fixing plate 501, which has good stability.

[0031] Working principle: During installation, first place the two longitudinal retaining rings 202 on both ends of the bicycle's rear wheel axle. At this time, the ends where the half-hoops 107 are located are tilted upwards. Use both hands to pry the two half-hoops 107 apart and press them downwards until the two half-hoops 107 are fastened to the cylindrical support column under the bicycle seat. Because the traction arm 104 is relatively long, the bending deformation of the traction arm 104 is not obvious as the two half-hoops 107 move away from each other, and the distance between the two transverse retaining rings 304 hardly changes. When the two half-hoops 107 are fastened... When the cylindrical support column under the bicycle seat is outside, the two horizontal retaining rings 304 fit perfectly on the diagonal support rod of the bicycle rear axle. The installation can be completed by using bolts to tighten the nuts through the aligned holes. Under the restraint of the half-hoop ring 107, the position of the horizontal retaining rings 304 will not change. Through the restriction of the front bracket 3, the two longitudinal retaining rings 202 can also remain stable at both ends of the bicycle rear wheel axle without the need to use nuts for limiting. The rack frame 1 is supported by the lower longitudinal bracket 2, the front bracket 3 and the rear bracket 4, and can maintain stability well. Disassembly is done in reverse order. First, remove all the bolts that restrain the two half-hoops 107. Then, use both hands to pry the two half-hoops apart from the support column under the bicycle seat and lift them upwards. The two horizontal retaining rings 304 will then disengage from the bicycle rear axle brace, making it easy to detach the longitudinal retaining rings 202 from both ends of the bicycle rear wheel axle. Then, you can replace the rack with other racks of different sizes.

[0032] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A bicycle rear rack that is easy to replace, characterized in that: The system includes a rack frame (1), which includes a rear axle (101). Both ends of the rear axle (101) have side axles (102). Each side axle (102) is connected to a traction arm (104) via a cantilever (103) at one end away from the rear axle (101). Each traction arm (104) has a half hoop (107) at one end. The two half hoops (107) are symmetrical and their sides are suitable for fixed connection by bolts. A longitudinal support (2) is fixedly connected to the lower surface of the side axle (102). The lower end of the longitudinal support (2) has a longitudinal retaining ring (202). A front support (3) is fixedly connected between the front side of the longitudinal support (2) and the lower surface of the side axle (102). The lower side of the front support (3) has a front support arm (303). The lower end of the front support arm (303) has a transverse retaining ring (304).

2. The easily replaceable bicycle rear rack as described in claim 1, characterized in that: The two side axles (102) are parallel and perpendicular to the rear axle (101); the two cantilever arms (103) are on the same straight line and perpendicular to the side axles (102); the traction arm (104) is perpendicular to the connected cantilever arm (103).

3. The easily replaceable bicycle rear rack as described in claim 2, characterized in that: Each of the semi-hoops (107) has a rear connecting plate (105) between it and the traction arm (104), and the two rear connecting plates (105) have aligned rear connecting holes (106) for bolts to pass through.

4. The easily replaceable bicycle rear rack as described in claim 3, characterized in that: Each of the semi-hoops (107) has a front connecting plate (108) on the side opposite to the traction arm (104), and the two front connecting plates (108) have aligned front connecting holes (109) for bolts to pass through.

5. The easily replaceable bicycle rear rack as described in claim 1, characterized in that: The upper end of the longitudinal support (2) has a support arm (201), which is parallel to the side bridge (102) and fixedly connected to the side bridge (102); the upper end of the front support (3) has a first upper support plate (301) and the lower end has a first lower support plate (302). The first upper support plate (301) is parallel to the side bridge (102) and fixedly connected to the side bridge (102), and the first lower support plate (302) is parallel to the longitudinal support (2) and fixedly connected to the longitudinal support (2).

6. The easily replaceable bicycle rear rack as described in claim 5, characterized in that: A rear support (4) is fixedly connected between the rear side of the longitudinal support (2) and the lower surface of the side bridge (102). The upper end of the rear support (4) has a second upper support plate (401) and the lower end has a second lower support plate (402). The second upper support plate (401) is parallel to the side bridge (102) and is fixedly connected to the side bridge (102). The second lower support plate (402) is parallel to the longitudinal support (2) and is fixedly connected to the longitudinal support (2).

7. The easily replaceable bicycle rear rack as described in any one of claims 1 to 6, characterized in that: A pressure-dividing assembly (6) is provided between the two side bridges (102). The pressure-dividing assembly (6) includes a support frame (601) fixedly connected to the side bridge (102). Several support plates (602) are fixedly connected to the support frame (601). The two ends of each support plate (602) are fixedly connected to the two side bridges (102) respectively.

8. The easily replaceable bicycle rear rack as described in claim 7, characterized in that: The rear axle (101) and the support frame (601) are connected together by a configuration frame (5). The configuration frame (5) includes a longitudinal mounting plate (502). The mounting plate (502) has at least two connection holes (503). The upper edge of the mounting plate (502) is fixedly connected to the rear axle (101) and the support frame (601) through a fixing plate (501).

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