Scooter bumper fixing structure

Abstract

The utility model belongs to the technical field of scooters, and particularly relates to a scooter bumper fixing structure. A scooter bumper fixing structure comprises a bumper shell and a connecting rod, the connecting rod extends in the front-back direction of a scooter and is used for fixing the bumper shell to a scooter chassis frame, one end of the connecting rod is fixed to the scooter chassis frame, and the other end of the connecting rod is connected with the bumper shell. The other end of the connecting rod is provided with a connecting part used for being fixed to a bumper shell, and the bumper shell and the connecting part are matched in an inserted mode and detachably fixed through a first fastener. The scooter bumper has the advantage that an operator can replace the scooter bumper conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of mobility scooters, and in particular relates to a bumper fixing structure for a mobility scooter. Background Art

[0002] A Chinese patent application numbered 202121931071.5 discloses an anti-collision mechanism for an elderly scooter, comprising a main body assembly and an anti-collision assembly. The main body assembly comprises a main rod, mounting holes are provided on both sides of the main rod, two mounting blocks are connected to one side of the main rod, and fastening bolts are connected to the mounting blocks. The anti-collision assembly comprises a crossbeam, a buffer plate is connected to one side of the crossbeam, and one end of the buffer plate is connected to the main rod.

[0003] In the above scheme, the main rod and the anti-collision assembly are both arranged in the left-right direction, and the buffer plate of the anti-collision assembly is connected to the main rod. When the anti-collision assembly is damaged and needs to be replaced, the entire anti-collision assembly needs to be removed from the main rod. The anti-collision assembly is connected to the main rod through one end of the buffer plate. If one end of the buffer plate is integrated with the main rod, the entire main rod assembly and the anti-collision assembly need to be replaced, which is costly. If the buffer plate and the main rod are fixed with fasteners such as screws and bolts, since there is no positioning structure between the buffer plate and the main rod, it is more troublesome to adjust the position between the buffer plate and the main rod, which is not conducive to the operator to quickly replace the buffer plate and the main rod. Utility Model Content

[0004] The utility model aims to provide a bumper fixing structure which is convenient for operators to replace the bumper.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a bumper fixing structure for a mobility scooter, comprising a bumper shell and a connecting rod, wherein the connecting rod extends along the front and rear directions of the mobility scooter and is used to fix the bumper shell to the chassis frame of the mobility scooter, one end of the connecting rod is fixed to the chassis frame of the mobility scooter, and the other end of the connecting rod is provided with a connecting portion for fixing to the bumper shell, the bumper shell and the connecting portion are plugged in and matched and the two are detachably fixed by a first fastener.

[0006] During assembly, the bumper shell is plugged into and matched with the connecting portion of the connecting rod to achieve positioning between the bumper shell and the connecting portion of the connecting rod, and then the bumper can be fixed to the connecting rod through the first fastener.

[0007] The bumper housing can be made of any existing plastic material, and the connecting rod can be a metal rod that can be fixed to the chassis bracket by screws or welding. The plug-in fit can be a mating groove and a protrusion that extends into the mating groove, or a positioning hole and a protrusion that extends into the positioning hole, to achieve positioning between the bumper housing and the connecting rod.

[0008] This solution provides a plug-in fitting structure between the connecting rod and the bumper shell, thereby facilitating the positioning of the bumper shell and the connecting rod and facilitating the operator to disassemble and install the bumper shell.

[0009] Preferably, a buffer portion extending toward the connecting portion is provided at the center of the bumper shell, the buffer portion is used to be connected to the connecting portion, and the buffer portion is provided with a plurality of reinforcing ribs to form a grid groove.

[0010] When the bumper shell collides, the impact force will be transmitted to the connecting rod. By providing a buffer portion with grid grooves, the impact force can be buffered, thereby reducing the impact force transmitted to the connecting rod.

[0011] Preferably, the buffer portion is provided with a protrusion extending toward the connecting rod, the protrusion encloses a positioning groove for contacting the circumferential outer wall of the connecting portion, and the protrusion and the positioning groove constitute the plug-in fitting structure.

[0012] The circumferential position of the connecting portion is positioned by cooperation between the positioning groove and the protrusion, thereby facilitating the connection and fixation of the connecting portion and the buffer portion.

[0013] Preferably, the connecting portion is provided with a mating portion extending toward the bumper shell side, the buffer portion is provided with a mating groove for inserting the mating portion, the mating portion is provided with a plurality of through grooves passing through opposite sides of the mating portion, the first fastener passes through the through groove and is threadedly mated with the bumper shell, and the mating portion and the mating groove constitute the plug-in mating structure.

[0014] The engagement portion and the engagement groove cooperate to achieve positioning between the connecting portion and the bumper housing, and the first fastener then passes through the through-slot and engages with the bumper housing to secure the engagement portion and the engagement groove. The first fastener can be threadedly engaged by directly providing an internally threaded hole in the bumper housing, or by directly using a self-tapping screw.

[0015] Preferably, the length of the through groove is greater than the outer diameter of the threaded section of the first fastener.

[0016] The length of the through slot is greater than the outer diameter of the threaded section of the first fastener, so that the first fastener has a larger adjustable space when being fastened, thereby facilitating rapid fixation of the bumper housing.

[0017] Preferably, the buffer portion is provided with a first fastening groove for cooperating with the first fastener, the first fastener cooperates with the thread of the groove wall of the first fastening groove, the length of the first fastening groove is greater than the outer diameter of the threaded section of the first fastener, and the width of the first fastening groove is less than the outer diameter of the threaded section of the first fastener.

[0018] The threaded engagement between the first fastener and the groove wall of the first fastening groove allows the first fastener to have a larger adjustable space when fastening, thereby further facilitating quick fixation between the bumper housing and the connecting rod.

[0019] Preferably, the bumper housing is located at the front end of the front cover of the mobility scooter and is detachably fixed to the front cover of the mobility scooter via a second fastener.

[0020] The bumper shell and the front cover are detachably fixed, so that the structure between the bumper shell and the front cover is more compact, and the fixing effect and the buffering effect are increased, thereby increasing safety.

[0021] Preferably, a contact surface is provided between the bumper shell and the front cover.

[0022] The contact surface enables contact and positioning between the bumper shell and the front cover, thereby facilitating fixation of the bumper shell.

[0023] Preferably, the front cover is recessed inward and forms a number of regularly spaced fixing grooves, the fixing grooves are open to the front side of the front cover, the bumper shell is provided with fixing members that correspond one-to-one to the fixing grooves and can extend into the fixing grooves, the bottom of the fixing groove is provided with a through hole extending upward and downward, the through hole is matched with a second fastener, and the second fastener passes through the through hole and is threadedly engaged with the fixing member.

[0024] The fixing groove is formed by the front cover being recessed inward, so as not to increase the overall thickness of the front cover. At the same time, the front cover and the bumper shell are positioned by the cooperation of the fixing member and the fixing groove, and the threaded cooperation between the front cover and the bumper shell is achieved by the second fastener.

[0025] Preferably, the fixing member is provided with a second fastening groove opening downward and extending in the front-to-back direction, and the second fastener is threadedly engaged with the groove wall of the second fastening groove; the width of the second fastening groove is smaller than the outer diameter of the threaded section of the second fastener, and the length of the second fastening groove is greater than the outer diameter of the threaded section of the second fastener.

[0026] The second fastener is threadedly engaged with the groove wall of the second fastening groove, so that the second fastener has a wider adjustable range, thereby facilitating the fixation between the bumper shell and the front cover.

[0027] The utility model has the advantage of being convenient for operators to replace the bumper shell of the mobility scooter. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the front side of the bumper shell.

[0029] Figure 2 It is a schematic diagram of the structure of the back side of the bumper shell.

[0030] Figure 3 It is a schematic diagram of the structure when the bumper shell and the front cover are fixed together.

[0031] Figure 4 It is a structural diagram of the front side of the front cover.

[0032] Figure 5 Schematic diagram of the structure at the connecting rod.

[0033] Figure 6 This is a schematic diagram of the structure after the bumper shell is connected to the connecting rod and the front cover.

[0034] Figure 7 for Figure 6 sectional view of .

[0035] Figure numbers: 1. bumper shell; 2. fixing part; 21. second fastening groove; 211. second fastening member; 22. convex strip; 3. buffer part; 31. reinforcing rib; 32. first fastening groove; 321. first fastening member; 33. matching groove; 34. protrusion; 4. front cover; 41. fixing groove; 42. through hole; 43. clearance hole; 44. contact surface; 45. concave and convex part; 5. connecting rod; 51. connecting part; 52. matching part; 53. through groove; 6. chassis bracket. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, this embodiment discloses a bumper fixing structure for a mobility scooter, comprising a bumper housing 1, a front cover 4, and a connecting rod 5. The connecting rod 5 extends in the front-to-back direction and its rear end is welded to a chassis bracket 6. The front end of the connecting rod 5 is provided with a connecting portion 51 for connecting to the bumper housing 1, and the front end surface of the front cover 4 is provided with a contact surface 44 for contacting the bumper housing 1. When the bumper housing 1, the front cover 4, and the connecting rod 5 are fixed together, the bumper housing 1 is located at the central axis of the front cover 4 and at the front end of the front cover 4.

[0038] like Figures 2 to 4 as well as Figure 6As shown, four regularly spaced fixings 2 are provided on the back side of the bumper housing 1, extending toward the rear of the bumper housing 1. The fixings 2 are provided with a second fastening groove 21 extending vertically and rearwardly. The housing of the front cover 4 is recessed rearward to form a concave-convex portion 45, which defines a fixing groove 41 that opens forward and extends upward. There are four fixing grooves 41, each corresponding to a fixing member 2. The fixing member 2 is configured to extend into the fixing grooves 41. The left and right outer walls of the fixing member 2 are provided with ridges 22 extending in the front-to-back direction. The outer surfaces of the ridges 22 are configured to contact the walls of the fixing groove 41 to position the fixing member 2. A through hole 42 is provided at the bottom of the fixing groove 41 and extends through the bottom. A second fastener 211 is provided in the through hole 42. The second fastener 211 is threadedly engaged with the groove wall of the second fastening groove 21. The left and right widths of the second fastening groove 21 are smaller than the outer diameter of the threaded section of the second fastener 211, and the front and rear length of the second fastening groove 21 is greater than the outer diameter of the threaded section of the second fastener 211.

[0039] like Figures 2 to 7 As shown, the front end of the connecting rod 5 is provided with a connecting portion 51. The lower end of the connecting portion 51 is provided with a mating portion 52 extending forward. The left and right regions of the mating portion 52 are each provided with a through slot 53 extending vertically and opening left and right. The bumper housing 1 is provided with a buffer portion 3 extending rearward for connection with the connecting portion 51. The front cover 4 is provided with a clearance hole 43 to allow clearance for the buffer portion 3. The buffer portion 3 is provided with reinforcing ribs 31 extending rearward and arranged perpendicularly to each other, forming a grid of grooves. The upper outer edge of the buffer portion 3 is provided with a rearward-extending protrusion 34, which together form a positioning groove. When the connecting portion 51 is secured to the buffer portion 3, the inner wall of the positioning groove (the inner wall of the protrusion 34) engages with the axial outer wall of the upper end of the connecting portion 51. A mating slot 33 extending in the front-to-back direction and opening rearward is provided at the lower end of the buffer portion 3. The mating portion 52 is capable of extending into the mating slot 33. Two first fastening slots 32 are provided at the upper end of the mating slot 33. The first fastening slots 32 extend in the front-to-back direction and open toward the rear. A first fastener 321 is positioned within the first fastening slots 32, extending upward through the through slot 53 and threadedly engaging with the left and right side walls of the first fastening slots 32. The front-to-back length of the first fastening slots 32 is greater than the outer diameter of the fastener's threaded section, while the left-to-right width of the first fastening slots 32 is less than the outer diameter of the threaded section of the first fastener 321.

[0040] When installing the bumper shell 1, move it from front to back, inserting the fixing member 2 of the bumper shell 1 into the fixing slot 41 of the front cover 4 and inserting the mating portion 52 of the connecting portion 51 into the mating slot 33 of the front cover 4. The first fastener 321 is then passed upward through the through slot 53 of the mating portion 52 and threadedly engaged with the first fastening slot 32 of the front cover 4, thereby securing the connecting rod 5 to the bumper shell 1. After securing the first fastener 321, the second fastener 211 is passed upward through the through hole 42 and threadedly engaged with the second fastening slot 21 of the fixing member 2, thereby securing the bumper shell 1 to the front cover 4.

Claims

1. A bumper fixing structure for a mobility scooter, characterized by: The utility model comprises a bumper shell and a connecting rod, wherein the connecting rod extends along the front and rear direction of the mobility scooter and is used to fix the bumper shell on the chassis frame of the mobility scooter. One end of the connecting rod is fixed to the chassis frame of the mobility scooter, and the other end of the connecting rod is provided with a connecting portion for fixing to the bumper shell. The bumper shell and the connecting portion are plugged in and matched and the two are detachably fixed by a first fastener.

2. The vehicle bumper fixing structure according to claim 1, characterized in that: A buffer portion extending toward the connecting portion is provided at the center of the bumper housing. The buffer portion is used to be connected to the connecting portion. The buffer portion is provided with a plurality of reinforcing ribs to form a grid groove.

3. The vehicle bumper fixing structure according to claim 2, characterized in that: The buffer portion is provided with a protrusion extending toward the connecting rod, the protrusion encloses a positioning groove for contacting the circumferential outer wall of the connecting portion, and the protrusion and the positioning groove constitute a plug-in fitting structure.

4. The vehicle bumper fixing structure according to claim 2, characterized in that: The connecting portion is provided with a mating portion extending toward the bumper shell side, the buffer portion is provided with a mating groove for the mating portion to be inserted, the mating portion is provided with a plurality of through grooves passing through the opposite sides of the mating portion, the first fastener passes through the through groove and is threadedly mated with the bumper shell, and the mating portion and the mating groove constitute a plug-in mating structure.

5. The vehicle bumper fixing structure according to claim 4, characterized in that: The length of the through slot is greater than the outer diameter of the threaded section of the first fastener.

6. The vehicle bumper fixing structure according to claim 2, characterized in that: The buffer portion is provided with a first fastening groove for cooperating with the first fastener, the first fastener cooperates with the thread of the groove wall of the first fastening groove, the length of the first fastening groove is greater than the outer diameter of the first fastener thread segment, and the width of the first fastening groove is less than the outer diameter of the first fastener thread segment.

7. The vehicle bumper fixing structure according to claim 1, 2, 3 or 4, characterized in that: The bumper housing is located at the front end of the front cover of the mobility scooter and is detachably fixed to the front cover of the mobility scooter via a second fastener.

8. The vehicle bumper fixing structure according to claim 7, characterized in that: A contact surface that contacts each other is provided between the bumper shell and the front cover.

9. The bumper fixing structure for a mobility scooter according to claim 7, characterized in that: The front cover is recessed inward and forms a plurality of regularly spaced fixing grooves, the fixing grooves being open to the front side of the front cover, the bumper shell being provided with fixing members corresponding one to one with the fixing grooves and being able to extend into the fixing grooves, the bottom of the fixing groove being provided with a through hole extending upward and downward, the through hole being matched with a second fastener, the second fastener passing through the through hole and being threadedly engaged with the fixing member.

10. The vehicle bumper fixing structure according to claim 9, characterized in that: The fixing piece is provided with a second fastening groove which opens downward and extends in the front-to-back direction, and the second fastening piece is threadedly engaged with the groove wall of the second fastening groove; the width of the second fastening groove is smaller than the outer diameter of the threaded section of the second fastening piece, and the length of the second fastening groove is greater than the outer diameter of the threaded section of the second fastening piece.

Images