Bus front bicycle fixing frame and bus

Abstract

The utility model provides a front bicycle fixing frame of a bus and the bus, and belongs to the technical field of vehicles. The front bicycle fixing frame of the bus comprises a bicycle frame and a transition connecting frame, the rear end of the transition connecting frame is provided with a rear connecting face fixedly connected with a bus body framework of the bus, and the front end of the transition connecting frame is provided with a front connecting face fixedly connected with the bicycle frame. And the rear end of the bicycle frame is provided with a frame connecting beam which penetrates through the front bumper and is fixedly connected with the front connecting surface. The bicycle frame is fixed to the front end of the bus through the transition connecting frame, the transition connecting frame is fixedly connected with the bus body framework of the bus, and the frame connecting beam of the bicycle frame penetrates through the front bumper to be fixedly connected with the transition connecting frame, so that the bicycle frame is indirectly fixed to the bus body framework through the transition connecting frame. The bicycle fixing frame is prevented from being connected to a front bumper, the bicycle body framework has high strength, connection firmness can be guaranteed, the bicycle fixing frame is prevented from falling off, and safe running of a bus is guaranteed.

Description

Technical Field

[0001] The utility model relates to a front bicycle fixing rack for a bus and the bus, belonging to the technical field of vehicles. Background Art

[0002] At present, it is common overseas to install a bicycle rack at the front end of a bus so that passengers can carry bicycles when traveling. There are also related solutions in China. For example, the Chinese utility model patent with the authorization announcement number CN204775001U discloses a bicycle carrying device for bus transfer, which is fixed at the front end of the bus body; another example is the Chinese invention patent application with the application publication number CN109017594A discloses a front bicycle rack for buses, which is connected to the front end of the bus through a connecting sleeve. As for the specific structure of the bicycle rack, there are various forms. At present, the front bicycle rack is usually directly connected to the front bumper of the bus, but the front bumper is a thin-walled part, the bicycle rack itself and the bicycle have a certain weight, and the vehicle is inevitably bumpy during driving. Therefore, the current connection method is not very reliable, and the front bumper has a great risk of deformation or even breakage. Once the bicycle rack and the bicycle fall, it will affect the safe driving of the bus and even cause a traffic accident. Utility Model Content

[0003] The purpose of the utility model is to provide a front bicycle fixing rack for a bus, so as to solve the problem in the prior art that the front bicycle fixing rack is connected to the front bumper of the bus, which causes a high risk of deformation or even breakage of the front bumper, thereby affecting the safe driving of the vehicle and even causing a traffic accident when the bicycle fixing rack and the bicycle fall off; the purpose of the utility model is also to provide a bus to solve the above-mentioned problem.

[0004] In order to achieve the above-mentioned purpose, the front bicycle fixing rack for buses in the utility model adopts the following technical solutions:

[0005] A bicycle fixing rack at the front of a bus comprises a bicycle rack for placing and fixing bicycles, and also comprises a transition connecting frame, wherein the rear end of the transition connecting frame is provided with a rear connecting surface for fixedly connecting to a body frame of the bus, the front end of the transition connecting frame is provided with a front connecting surface for fixedly connecting to the bicycle rack, and the rear end of the bicycle rack is provided with a frame connecting beam for passing through a front bumper and fixedly connecting to the front connecting surface.

[0006] The beneficial effect of the above technical scheme is that: the utility model provides an improved front bicycle fixing rack for buses, the improvement is that it also includes a transition connecting rack, the rear end of the transition connecting rack is provided with a rear connecting surface, which is convenient for fixing and connecting with the body frame of the bus; the front end of the transition connecting rack is provided with a front connecting surface, which is convenient for fixing and connecting with the bicycle rack; the rear end of the bicycle rack is provided with a frame connecting beam, and the frame connecting beam can pass through the front bumper and be fixedly connected with the front connecting surface. Therefore, the utility model realizes that the bicycle rack is fixed at the front end of the bus by setting the transition connecting rack, and the transition connecting rack is fixedly connected with the body frame of the bus, and the frame connecting beam of the bicycle rack passes through the front bumper and is fixedly connected with the transition connecting rack, so that the bicycle rack is indirectly fixed to the body frame through the transition connecting rack, avoiding being connected to the front bumper, and the body frame has a high strength, which can ensure the reliability of the connection, avoid the bicycle fixing rack from falling, and ensure the safe driving of the bus, and solves the problem that the front bicycle fixing rack is connected to the front bumper of the bus in the prior art, which causes the high risk of deformation or even fracture of the front bumper, thereby affecting the safe driving of the vehicle when the bicycle fixing rack and the bicycle fall, and even causing traffic accidents.

[0007] Furthermore, the transition connecting frame includes a transition connecting beam and a front connecting plate located at the front side of the transition connecting beam, the front end surface of the front connecting plate constitutes the front connecting surface, and the side surface and / or end surface at the rear end of the transition connecting beam constitutes the rear connecting surface.

[0008] Furthermore, the transition connecting frame also includes a transition frame, the transition connecting beam is fixed on the rear side of the transition frame, and the front connecting plate is fixed on the front side of the transition frame.

[0009] Furthermore, the transition frame includes a cross beam and a vertical beam, the front connecting plate is welded and fixed on the front end surfaces of the cross beam and the vertical beam, and the front connecting plate is provided with through holes corresponding to the cross beam and / or the vertical beam for filling with solder.

[0010] Furthermore, at least two groups of transition connecting beams are arranged at intervals along the left-right direction, each group includes at least two transition connecting beams arranged up and down, and at least one transition connecting beam in at least one group is fixed with a reinforcing beam extending obliquely backward, and the rear end of the reinforcing beam is used to be fixedly connected to the body frame of the bus.

[0011] Furthermore, the reinforcing beam includes an intermediate reinforcing beam fixed between two adjacent transition connecting beams in a group, the front end of the intermediate reinforcing beam is fixed on the top surface of the lower transition connecting beam among the two adjacent transition connecting beams, and the rear end of the intermediate reinforcing beam is fixed on the bottom surface of the upper transition connecting beam among the two adjacent transition connecting beams.

[0012] Furthermore, at least three groups of transition connecting beams are arranged at intervals along the left-right direction. Except for a group of transition connecting beams at the left end and a group of transition connecting beams at the right end, the reinforcing beams are fixed to the transition connecting beams in the middle groups.

[0013] Furthermore, each group of transition connecting beams includes two groups of hook plate connecting beams for fixing on the trailer hook fixing plate, the two groups of hook plate connecting beams are used to be arranged on the left and right sides of the trailer hook, and the front connecting plate is used to be arranged below the trailer hook.

[0014] Furthermore, a rear connecting plate is fixed to the rear end of the frame connecting beam, and the rear connecting plate is fixedly connected to the front connecting surface by bolts.

[0015] In order to achieve the above-mentioned purpose, the bus in the utility model adopts the following technical solutions:

[0016] A bus comprises a body frame and a front bumper fixed at the front end of the body frame, a front bicycle fixing frame comprising a bicycle rack for placing and fixing bicycles, and a transition connecting frame, a rear end of the transition connecting frame being provided with a rear connecting surface for fixed connection with the body frame of the bus, a front end of the transition connecting frame being provided with a front connecting surface for fixed connection with the bicycle rack, and a rear end of the bicycle rack being provided with a frame connecting beam for passing through the front bumper and fixedly connected to the front connecting surface.

[0017] The beneficial effect of the above technical solution is that: the utility model provides an improved bus, the improvement is that the front bicycle fixing frame of the bus also includes a transition connecting frame, the rear end of the transition connecting frame is provided with a rear connecting surface, which is convenient for fixing and connecting with the body frame of the bus; the front end of the transition connecting frame is provided with a front connecting surface, which is convenient for fixing and connecting with the bicycle frame; the rear end of the bicycle frame is provided with a frame connecting beam, and the frame connecting beam can pass through the front bumper and be fixedly connected with the front connecting surface. Therefore, the utility model realizes that the bicycle frame is fixed to the front end of the bus by setting the transition connecting frame, and the transition connecting frame is fixedly connected with the body frame of the bus, and the frame connecting beam of the bicycle frame passes through the front bumper and is fixedly connected with the transition connecting frame, so that the bicycle frame is indirectly fixed to the body frame through the transition connecting frame, avoiding being connected to the front bumper, and the body frame has a high strength, which can ensure the reliability of the connection, avoid the bicycle fixing frame from falling, and ensure the safe driving of the bus, and solves the problem that the front bicycle fixing frame is connected to the front bumper of the bus in the prior art, resulting in a high risk of deformation or even fracture of the front bumper, thereby affecting the safe driving of the vehicle when the bicycle fixing frame and the bicycle fall, and even causing a traffic accident.

[0018] Furthermore, the transition connecting frame includes a transition connecting beam and a front connecting plate located at the front side of the transition connecting beam, the front end surface of the front connecting plate constitutes the front connecting surface, and the side surface and / or end surface at the rear end of the transition connecting beam constitutes the rear connecting surface.

[0019] Furthermore, the transition connecting frame also includes a transition frame, the transition connecting beam is fixed on the rear side of the transition frame, and the front connecting plate is fixed on the front side of the transition frame.

[0020] Furthermore, the transition frame includes a cross beam and a vertical beam, the front connecting plate is welded and fixed on the front end surfaces of the cross beam and the vertical beam, and the front connecting plate is provided with through holes corresponding to the cross beam and / or the vertical beam for filling with solder.

[0021] Furthermore, at least two groups of transition connecting beams are arranged at intervals along the left-right direction, each group includes at least two transition connecting beams arranged up and down, and at least one transition connecting beam in at least one group is fixed with a reinforcing beam extending obliquely backward, and the rear end of the reinforcing beam is used to be fixedly connected to the body frame of the bus.

[0022] Furthermore, the reinforcing beam includes an intermediate reinforcing beam fixed between two adjacent transition connecting beams in a group, the front end of the intermediate reinforcing beam is fixed on the top surface of the lower transition connecting beam among the two adjacent transition connecting beams, and the rear end of the intermediate reinforcing beam is fixed on the bottom surface of the upper transition connecting beam among the two adjacent transition connecting beams.

[0023] Furthermore, at least three groups of transition connecting beams are arranged at intervals along the left-right direction. Except for a group of transition connecting beams at the left end and a group of transition connecting beams at the right end, the reinforcing beams are fixed to the transition connecting beams in the middle groups.

[0024] Furthermore, each group of transition connecting beams includes two groups of hook plate connecting beams for fixing on the trailer hook fixing plate, the two groups of hook plate connecting beams are used to be arranged on the left and right sides of the trailer hook, and the front connecting plate is used to be arranged below the trailer hook.

[0025] Furthermore, a rear connecting plate is fixed to the rear end of the frame connecting beam, and the rear connecting plate is fixedly connected to the front connecting surface by bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a partial structural diagram of the utility model bus (the front bicycle fixing rack is in the unfolded state);

[0027] Figure 2 for Figure 1 A partial enlarged view of

[0028] Figure 3 It is a partial structural diagram of the utility model bus (the front bicycle fixing rack is in the retracted state);

[0029] Figure 4 It is a partial structural diagram of the utility model bus (bicycle rack is not shown);

[0030] Figure 5 This is a structural diagram of a transition connecting frame in a front bicycle fixing frame of a bus of the utility model;

[0031] Figure 6 It is a partial structural diagram of the utility model bus (the front bicycle fixing rack is not shown);

[0032] Figure 7 The utility model is a structural diagram of a bicycle rack in a front bicycle fixing rack of a bus.

[0033] In the figure: 1. bicycle rack; 11. mounting frame; 111. frame connecting beam; 112. fixing rod; 113. rear connecting plate; 12. movable frame; 121. placement seat; 122. positioning frame; 13. tire fixing belt; 14. vehicle body fixing belt; 15. frame fixing belt; 2. transition connecting frame; 21. transition connecting beam; 22. front connecting plate; 221. bolt mounting hole; 222. through hole; 23. transition frame; 231. cross beam; 232. vertical beam; 24. middle reinforcing beam; 25. top reinforcing beam; 3. vehicle body frame; 4. trailer hook fixing plate; 5. trailer hook. DETAILED DESCRIPTION

[0034] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0035] The utility model realizes that the bicycle rack is fixed to the front end of the bus by arranging a transition connecting frame, and the transition connecting frame is fixedly connected to the body frame of the bus, and the frame connecting beam of the bicycle rack passes through the front bumper and is fixedly connected to the transition connecting frame, so that the bicycle rack is indirectly fixed to the body frame through the transition connecting frame, avoiding connection to the front bumper, and the strength of the body frame is relatively high, which can ensure a firm connection.

[0036] Embodiment of the bus in the utility model:

[0037] like Figure 1 and Figure 6 As shown, the bus includes a body frame 3 and a front bumper (not shown in the figure) fixed to the front end of the body frame 3. The body frame 3 includes a trailer hook fixing plate 4 located in the middle below the front end. The trailer hook fixing plate 4 is a square plate on which a trailer hook 5 is installed.

[0038] The bus also includes a front bicycle fixing rack, which includes a bicycle rack 1 for placing and fixing bicycles, and a transition connecting frame 2, the rear end of which is provided with a rear connecting surface for fixedly connecting to the body frame 3 of the bus, and the front end of which is provided with a front connecting surface for fixedly connecting to the bicycle rack 1. Figure 2 , Figure 3 , Figure 5 As shown, the bicycle rack 1 includes a mounting frame 11, and the mounting frame 11 includes two parallel frame connecting beams 111 extending front and back. The rear end of the frame connecting beam 111 passes through the front bumper and is fixedly connected to the above-mentioned front connecting surface.

[0039] As an implementation method, Figure 2 , Figure 4 and Figure 5 As shown, the transition connecting frame 2 includes a transition connecting beam 21 and a front connecting plate 22 located at the front side of the transition connecting beam 21. The transition connecting frame also includes a transition frame 23. The transition connecting beam 21 extends along the front-to-back direction and is fixed to the rear side of the transition frame 23. The front connecting plate 22 is fixed to the front side of the transition frame 23. The front connecting plate 22 is arranged vertically, and its front end surface constitutes the above-mentioned front connecting surface. Specifically, as shown in FIG. Figure 7 As shown, a rear connecting plate 113 is fixed to the rear end of the frame connecting beam 111 , and the rear connecting plate 113 is fixedly connected to the front connecting plate 22 by bolts, and for this purpose, a bolt mounting hole 221 is provided on the front connecting plate 22 .

[0040] Furthermore, the transition frame 23 includes a cross beam 231 and a vertical beam 232, and the front connecting plate 22 is welded and fixed on the front end surfaces of the cross beam 231 and the vertical beam 232. In order to enhance the welding and fixing effect, a through hole 222 corresponding to the vertical beam 232 for filling with solder is provided on the front connecting plate 22. In this embodiment, there are four vertical beams 232 and two through holes 222, which correspond to the two middle vertical beams 232 respectively, and the through holes 222 are long holes extending up and down.

[0041] The end surface of the rear end of the transition connecting beam 21 directly abuts against the body frame 3, and the surrounding side surfaces are welded and fixed to the body frame 3, so the side surfaces of the rear end of the transition connecting beam 21 constitute the above-mentioned rear connection surface, and the front end of the transition connecting beam 21 is welded to the cross beam 231 or the vertical beam 232. In order to ensure the overall structural strength of the transition connecting frame 2 and the connection strength between the transition connecting frame 2 and the body frame 3, the transition connecting beams 21 in the utility model are arranged in at least two groups at intervals along the left and right directions, and each group includes at least two transition connecting beams 21 arranged up and down, and at least one transition connecting beam 21 in at least one group is fixed with a reinforcing beam extending obliquely backward, and the rear end of the reinforcing beam is fixedly connected to the body frame 3 of the bus.

[0042] In this embodiment, four groups of transition connecting beams 21 are arranged at intervals along the left-right direction, and each group includes two transition connecting beams 21 arranged vertically. Except for one group of transition connecting beams at the left end and one group of transition connecting beams at the right end, the above-mentioned reinforcing beams are fixed to the transition connecting beams 21 in the middle two groups. In addition, the reinforcing beams include an intermediate reinforcing beam 24 fixed between two upper and lower adjacent transition connecting beams 21 in one group, the front end of the intermediate reinforcing beam 24 is fixed to the top surface of the lower transition connecting beam in the upper and lower adjacent transition connecting beams, and the rear end of the intermediate reinforcing beam 24 is fixed to the bottom surface of the upper transition connecting beam in the upper and lower adjacent transition connecting beams.

[0043] The reinforcing beam also includes a top reinforcing beam 25 fixed on the top surface of the upper transition connecting beam, and the rear ends of the top reinforcing beam 25, the middle reinforcing beam 24, and the two middle transition connecting beams 21 are all welded and fixed on the trailer hook fixing plate 4, so the two middle transition connecting beams 21 also constitute the hook plate connecting beam fixed on the trailer hook fixing plate 4. In addition, the two middle transition connecting beams 21 are fixed on the left and right ends of the trailer hook fixing plate 4, so that the two middle transition connecting beams 21 are arranged on the left and right sides of the trailer hook 5, and the front connecting plate 22 and the transition frame 23 are arranged below the trailer hook 5, which not only ensures the structural strength and connection strength, but also facilitates the fixed connection between the transition connecting frame 2 and the vehicle frame 3, and can also avoid the trailer hook 5.

[0044] In summary, the utility model realizes that the bicycle rack 1 is fixed to the front end of the bus by setting a transition connecting frame 2, and the transition connecting frame 2 is fixedly connected to the body frame 3 of the bus, and the frame connecting beam 111 of the bicycle rack 1 passes through the front bumper and is fixedly connected to the transition connecting frame 2, so that the bicycle rack 1 is indirectly fixed to the body frame 3 through the transition connecting frame 2, avoiding being connected to the front bumper, and the body frame 3 has a high strength, which can ensure the reliability of the connection, avoid the bicycle fixing frame from falling, and ensure the safe driving of the bus, and solves the problem in the prior art that the front bicycle fixing frame is connected to the front bumper of the bus, resulting in a high risk of deformation or even breakage of the front bumper, thereby affecting the safe driving of the vehicle when the bicycle fixing frame and the bicycle fall, and even causing a traffic accident.

[0045] In addition, combined Figure 2 , Figure 3 , Figure 5 As shown, the bicycle frame 1 further includes a movable frame 12 rotatably mounted on the mounting frame 11, so that the movable frame 12 has the following Figure 1 , Figure 2 , Figure 7 The expanded state shown and Figure 3In the stowed state shown, a limit bolt is provided at the connection position between the movable frame 12 and the mounting frame 11, and the limit bolt can lock the unfolded state and the stowed state of the movable frame 12. In addition, the mounting frame 11 includes a fixing rod 12 fixed on two frame connecting beams 111, and a frame fixing belt 15 is provided on the fixing rod 12. When the movable frame 12 is in the stowed state, the movable frame 12 is bound by the frame fixing belt 15, thereby further ensuring that the movable frame 12 will not be accidentally unfolded.

[0046] The movable frame 12 is provided with four placement seats 121, wherein two of them are used to place a bicycle in a group. When in use, the two tires of the bicycle are placed on the left and right placement seats 121 in a group. One of the placement seats 121 is provided with a tire fixing belt 13, which is used to bind the tire of the bicycle to prevent the bicycle from moving and falling. In addition, a positioning frame 122 is hinged on the movable frame 12. When placing the bicycle, the positioning frame 122 is turned up to a vertical posture. The positioning frame 122 is provided with a body fixing belt 14, which is used to bind the frame of the bicycle to prevent the bicycle from moving and falling. And the positioning frame 122 includes two front and rear vertical poles, and each vertical pole is provided with a body fixing belt 14 to bind the front and rear two bicycles. When the bicycle rack 1 is not in use, the positioning frame 122 can be put down, and the positioning frame 122 is provided with a locking bolt for locking its vertical posture and the lowered posture.

[0047] In other embodiments of the bus: the rear end of the frame connecting beam may not be fixed with the rear connecting plate, and the rear end of the frame connecting beam is directly welded and fixed to the front connecting surface of the transition connecting frame.

[0048] In other embodiments of the bus: when the trailer hook is relatively low and the front bicycle fixing rack does not affect the driver's field of vision, the front connecting plate can also be arranged above the trailer hook.

[0049] In other embodiments of the bus: only two groups of transition connecting beams can be provided, and these two groups of transition connecting beams are fixed on the trailer hook fixing plate; of course, in other embodiments, when the trailer hook is set offset, since the front bicycle fixing rack needs to be fixed to the front middle part of the body frame, the rear end of the transition connecting beam can be directly welded and fixed to the profile of the body frame, and of course, a fixing plate can also be welded to the profile of the body frame, and the rear end of the transition connecting beam can be welded to the fixing plate.

[0050] In other embodiments of the bus: three groups of transition connecting beams are arranged at intervals along the left-right direction, and only the middle group of transition connecting beams is fixed with a reinforcing beam; of course, in other embodiments, no matter how many groups of transition connecting beams there are, reinforcing beams can be fixed on each group of transition connecting beams; in other embodiments, no matter how many groups of transition connecting beams are fixed with reinforcing beams, the reinforcing beams can only include the middle reinforcing beam, and in addition to the above embodiment, the rear end of the middle reinforcing beam may not be fixed to the bottom surface of the upper transition connecting beam, but only fixed to the body frame.

[0051] In other embodiments of the bus: no matter how many groups of transition connecting beams are fixed with reinforcing beams, the reinforcing beams can only include a top reinforcing beam fixed on the uppermost transition connecting beam. Of course, on this basis, the reinforcing beam can also include a bottom reinforcing beam fixed on the lowermost transition connecting beam, and the bottom reinforcing beam and the top reinforcing beam are arranged in an "eight" shape.

[0052] In other embodiments of the bus: no matter how many groups of transition beams there are, each group of transition beams may include three or more transition beams arranged up and down.

[0053] In other embodiments of the bus: only through holes corresponding to the cross beams for filling with solder may be provided on the front connecting plate; in other embodiments, through holes corresponding to the cross beams and vertical beams for filling with solder may also be provided at the same time; in other embodiments, no through holes for filling with solder may be provided, and the front connecting plate may only be fixed to the transition frame by welding through the four edges thereof.

[0054] In other embodiments of the bus: the transition connecting frame may not include a transition frame, and in this case the front end of the transition connecting beam is directly welded and fixed to the front connecting plate.

[0055] In other embodiments of the bus: a through hole can be set on the body frame for the rear end of the transition connecting beam to pass through, and the rear end face of the transition connecting beam is aligned with the body frame and welded to fix, at which time the rear end face of the transition connecting beam constitutes the rear connecting face. Of course, in other embodiments, the rear end face of the transition connecting beam can also be made to slightly protrude from the body frame, and then the rear end face and side faces of the transition connecting beam are respectively welded to the body frame, at which time both the rear end face and the side faces constitute the rear connecting face.

[0056] In other embodiments of the bus: the transition connecting frame may also only include a transition connecting beam and a transition frame, and the front end of the transition connecting beam is welded and fixed to the transition frame, and the front end surface of the transition frame constitutes the front connecting surface; of course, in other embodiments, the transition connecting frame may also be a three-dimensional frame, and the front end surface of the three-dimensional frame constitutes the front connecting surface, and the rear end surface constitutes the rear connecting surface.

[0057] The embodiment of the front bicycle fixing rack for buses in the utility model is as follows: the specific structure of the front bicycle fixing rack for buses is the same as the front bicycle fixing rack in the above-mentioned bus embodiment, and will not be repeated here.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A front bicycle rack for a bus, comprising a bicycle rack for placing and fixing bicycles, characterized in that: It also includes a transition connecting frame, the rear end of the transition connecting frame is provided with a rear connecting surface for fixed connection to the body frame of the bus, the front end of the transition connecting frame is provided with a front connecting surface for fixed connection to the bicycle rack, and the rear end of the bicycle rack is provided with a frame connecting beam for passing through the front bumper and fixedly connected to the front connecting surface.

2. The front bicycle fixing rack for buses according to claim 1, characterized in that: The transition connecting frame includes a transition connecting beam and a front connecting plate located at the front side of the transition connecting beam, the front end surface of the front connecting plate constitutes the front connecting surface, and the side surface and / or end surface at the rear end of the transition connecting beam constitutes the rear connecting surface.

3. The front bicycle fixing rack for buses according to claim 2, characterized in that: The transition connecting frame also includes a transition frame, a transition connecting beam is fixed on the rear side of the transition frame, and a front connecting plate is fixed on the front side of the transition frame.

4. The front bicycle fixing rack for buses according to claim 3, characterized in that: The transition frame comprises a cross beam and a vertical beam. The front connecting plate is welded and fixed on the front end surfaces of the cross beam and the vertical beam. The front connecting plate is provided with through holes corresponding to the cross beam and / or the vertical beam for filling with solder.

5. The front bicycle fixing rack for buses according to any one of claims 2 to 4, characterized in that: At least two groups of transition connecting beams are arranged at intervals along the left and right directions, each group includes at least two transition connecting beams arranged up and down, and at least one transition connecting beam in at least one group is fixed with a reinforcing beam extending obliquely backward, and the rear end of the reinforcing beam is used for fixed connection with the body frame of the bus.

6. The front bicycle fixing rack for buses according to claim 5, characterized in that: The reinforcing beam includes an intermediate reinforcing beam fixed between two upper and lower adjacent transition connecting beams in a group, the front end of the intermediate reinforcing beam is fixed on the top surface of the lower transition connecting beam among the two upper and lower adjacent transition connecting beams, and the rear end of the intermediate reinforcing beam is fixed on the bottom surface of the upper transition connecting beam among the two upper and lower adjacent transition connecting beams.

7. The front bicycle fixing rack for buses according to claim 5, characterized in that: At least three groups of transition connecting beams are arranged at intervals along the left and right directions. Except for one group of transition connecting beams at the left end and one group of transition connecting beams at the right end, the reinforcing beams are fixed on the transition connecting beams in the middle groups.

8. The front bicycle fixing rack for buses according to claim 5, characterized in that: Each group of transition connecting beams includes two groups of hook plate connecting beams fixed on the trailer hook fixing plate. The two groups of hook plate connecting beams are used to be arranged on the left and right sides of the trailer hook, and the front connecting plate is used to be arranged below the trailer hook.

9. The front bicycle fixing rack for buses according to any one of claims 1 to 4, characterized in that: A rear connecting plate is fixed to the rear end of the frame connecting beam, and the rear connecting plate is fixedly connected to the front connecting surface through bolts.

10. A bus, comprising a body frame and a front bumper fixed to the front end of the body frame, and a front bicycle fixing rack, characterized in that: The front bicycle fixing rack is the front bicycle fixing rack for a bus as claimed in any one of claims 1 to 9.

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