Anti-collision beam structure of electric tricycle

Abstract

The utility model discloses an anti-collision beam structure of an electric tricycle, and belongs to the technical field of vehicle anti-collision beams. The anti-collision beam structure of the electric tricycle comprises an anti-collision beam body, the anti-collision beam body is of an arch structure protruding backwards, and a bumper of an elastic structure is detachably arranged at the rear end of the anti-collision beam body. The electric tricycle frame has the advantages of being more adaptive to a traditional electric tricycle frame, simple in structure, low in manufacturing cost and convenient to protect pedestrians.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle anti-collision beams, in particular to an anti-collision beam structure for an electric tricycle. Background Art

[0002] The anti-collision beam is a device used to reduce the vibration force on the vehicle. Its two ends are connected to low-speed energy absorption boxes with very low yield strength, and then connected to the longitudinal beam of the vehicle body by bolts. The low-speed energy absorption box can effectively absorb the collision energy when the vehicle collides at a low speed, and minimize the damage to the longitudinal beam of the vehicle body caused by the impact force. In this way, it plays a protective role on the vehicle. The electric tricycle is a three-wheeled transportation tool that uses batteries as power and motors to pull goods or people. Electric tricycles are divided into three types according to their use: household type, freight type, and factory type. With its strong applicability, flexibility, and low price, it is widely used in short-distance transportation fields such as families, urban and rural areas, individual rentals, factory areas, mining areas, sanitation, and community cleaning.

[0003] The utility model patent with the publication number CN214112761U discloses an anti-collision beam structure for an electric tricycle, including a main beam frame, an outer protection frame is provided on one side of the main beam frame, connecting frames are provided on both sides of the outer protection frame, a filler is provided between the connecting frame and the main beam frame, a first energy absorption box and a second energy absorption box are provided at both ends of the main beam frame, and the first energy absorption box and the second energy absorption box at different ends are mirror-distributed with each other, an array-distributed buffer is also provided on one side of the main beam frame, an auxiliary mounting plate is provided between the first energy absorption box and the second energy absorption box, buckle grooves are provided on both sides of the main beam frame, a filling groove is provided in the main beam frame, the filling material is a performance material, a buffer mounting plate is provided on one side of the filling groove, and an array-distributed airbag is also provided on one side of the main beam frame. The utility model has a simple structure, is easy to install and replace, is conducive to reducing the difficulty of installing the anti-collision beam, and protects the personal safety of personnel at the same time, which is conducive to improving the safety of the electric tricycle.

[0004] The main frame structure of the tricycle currently on the market is as follows Figure 6 As shown (the data comes from "Electric tricycle frame design and dynamic analysis"), the main part is the H-shaped beam, and the anti-collision structure is mainly the rear beam at the tail of the H-shaped beam. It can be seen that based on the application environment of tricycles in the field of short-distance transportation on non-motorized roads, the frame and anti-collision beam structure of the tricycle are relatively simple, and the cost is reduced as much as possible while basically meeting the use requirements to meet the market positioning and needs of the tricycle. The anti-collision beam structure in the above-mentioned utility model is complex and the manufacturing cost is relatively high. In this regard, this application proposes an electric tricycle anti-collision beam structure that is more suitable for the existing tricycle frame. Utility Model Content

[0005] The utility model aims to solve the problems of complicated anti-collision beam structure and high cost of electric tricycle in the prior art, and proposes an anti-collision beam structure for electric tricycle.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The anti-collision beam structure of an electric tricycle comprises an anti-collision beam main body, wherein the anti-collision beam main body is an arched structure protruding backwards, and a bumper with an elastic structure is detachably provided at the rear end of the anti-collision beam main body.

[0008] Furthermore, the bumper is a hollow structure with an open front end, and the cross-section of the bumper is arc-shaped.

[0009] Furthermore, a first structural plate is arranged in the middle of the front end of the bumper, second structural plates are arranged on both sides of the first structural plate, and two second structural plates are located at the ends of the bumper.

[0010] Furthermore, a concealed buckle plate is arranged between the first structural plate and the second structural plate, a buckle groove corresponding to the concealed buckle plate is opened on the rear end surface of the anti-collision beam body, and the bumper is detachably installed on the anti-collision beam body by buckling the concealed buckle plate with the buckle groove.

[0011] Furthermore, anti-collision side beams are provided at both left and right ends of the anti-collision beam body.

[0012] Furthermore, the front end surface of the bumper is fitted with the rear end surface of the anti-collision beam body, and bumper side panels fitted with the anti-collision side beams are provided at both ends of the bumper.

[0013] Furthermore, an anti-collision beam support rod is arranged on the front end surface of the anti-collision beam body, one end of the anti-collision beam support rod is connected to the anti-collision beam body, and the other end is connected to the welding point of the longitudinal beam and the cross beam of the tricycle frame.

[0014] Furthermore, there are two anti-collision beam struts, and the two anti-collision beam struts are symmetrically arranged about the central axis of the tricycle frame, and the angle between the anti-collision beam struts and the frame cross beam is between 50° and 70°.

[0015] Compared with the prior art, the utility model provides an anti-collision beam structure for an electric tricycle, which has the following beneficial effects:

[0016] The utility model electric tricycle anti-collision beam structure, when in use, welds the two ends of the anti-collision beam body to the rear end of the electric tricycle frame longitudinal beam, and is used to replace the existing frame rear beam. When the anti-collision beam body with an arched structure receives a rear impact, it can effectively transmit the external force to the vehicle longitudinal beam, thereby reducing the anti-collision beam from bending forward due to an impact, and improving the durability of the anti-collision beam.

[0017] Bumpers with elastic structures are mainly used to protect pedestrians and vehicles from minor collisions with external structures. When the bumper hits a pedestrian or an external structure, it undergoes elastic deformation according to the force of the impact, thereby avoiding rigid collisions, protecting pedestrians and improving the driver's driving experience.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model from a rear perspective;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model from a front perspective;

[0021] Figure 3 It is a schematic diagram of the main structure of the anti-collision beam of the utility model from the rear perspective;

[0022] Figure 4 This is a schematic diagram of the main structure of the anti-collision beam of the utility model from the front view;

[0023] Figure 5 This is a schematic diagram of the front view of the main structure of the bumper of the utility model;

[0024] Figure 6 This is a schematic diagram of the frame structure of the electric tricycle currently on the market.

[0025] Figure 7 It is a schematic diagram of the installation effect of the utility model.

[0026] In the figure:

[0027] 1. Anti-collision beam body; 2. Bumper; 3. Anti-collision side beam; 4. Bumper side plate; 5. Buckle groove; 6. Mounting hole; 7. First structural plate; 8. Concealed buckle plate; 9. Second structural plate; 10. Frame; 11. Rear beam; 12. Anti-collision beam support rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Reference Figure 1-7The utility model electric tricycle anti-collision beam structure comprises an anti-collision beam body 1 whose end is fixedly connected to the longitudinal beam of the frame, the anti-collision beam body 1 is an arched structure protruding backwards, and a bumper 2 with an elastic structure is detachably provided at the rear end of the anti-collision beam body 1.

[0030] In the present application, the anti-collision beam body 1 is manufactured using a square tube with the same specifications as the longitudinal beam in the H-beam of the tricycle frame 10 (the specific specifications of the square tube depend on the tricycle frame itself), and can also be manufactured by a stamping process. The anti-collision beam body 1 is mainly divided into two parts, one part is an arched portion located in the middle, and the other part is a straight tube portion located on both sides. The arched portion and the straight tube portion are welded, and the extension direction of the straight tube portion is consistent with the extension direction of the longitudinal beam of the frame 10. The end of the arched portion is welded to the rear end of the straight tube portion. When in use, the front end of the straight tube portion is welded to the rear end of the longitudinal beam of the frame 10. This is convenient for material acquisition and reduces manufacturing costs. Secondly, it is suitable for the improvement of most electric tricycle frames currently on the market, and has a certain coordination effect with the original bucket, carriage and other accessories of the tricycle, thereby further reducing the application cost of the anti-collision beam structure.

[0031] The bumper 2 can be made of plastic bumpers commonly used on the market, and of course it can also be made of rubber, such as tires of similar structure. Since the bumper 2 itself has a certain elastic deformation performance, it is used to protect pedestrians and remind the driver whether it comes into contact with other objects when a minor collision occurs, and it is easy to return to its original state after elastic deformation.

[0032] The bumper 2 is a hollow structure with an open front end, and the cross section of the bumper 2 is an arc.

[0033] The hollow structure is convenient for reducing the weight and cost of the bumper 2, and at the same time has sufficient elastic deformation space, such as the attached Figure 5 As shown, the bumper 2 is an arc structure convex to the right when viewed from above and from the front. Compared with a rectangular or other polygonal structure, the arc structure can also make the bumper 2 have a certain elastic deformation performance and reduce the edges and corners, further protecting the safety of pedestrians who collide with a tricycle equipped with this anti-collision beam.

[0034] A first structural plate 7 is disposed in the middle of the front end of the bumper 2 , and second structural plates 9 are disposed on both sides of the first structural plate 7 . The two second structural plates 9 are located at the ends of the bumper 2 .

[0035] The first structural plate 7 and the second structural plate 9 are used to improve the structural strength of the bumper 2. The first structural plate 7 prevents the middle of the bumper 2 from easily expanding upward and downward after a collision, and the second structural plate 9 prevents the two ends of the bumper 2 from easily expanding upward and downward after being squeezed or collided, thereby preventing the bumper 2 from separating from the concealed buckle plate 8 when a slight collision or squeezing occurs, thereby improving the durability of the bumper 2.

[0036] A gap is provided between the first structural plate 7 and the second structural plate 9, a concealed buckle plate 8 is provided at the edge of the bumper 2 within the gap, a buckle groove 5 corresponding to the concealed buckle plate 8 is provided on the rear end surface of the anti-collision beam body 1, and the bumper 2 is detachably installed on the anti-collision beam body 1 by buckling the concealed buckle plate 8 with the buckle groove 5.

[0037] The concealed buckle plate 8 is a plastic part, and its structure is not unique. You can refer to the connecting buckles of current vehicle bumpers. The bumper 2 can be detachably connected, which is easy to install and easy to replace and maintain, avoiding the situation where the entire anti-collision beam needs to be replaced due to damage to the bumper 2, further reducing the use cost of the anti-collision beam structure.

[0038] Anti-collision side beams 3 are provided at both left and right ends of the anti-collision beam body 1 .

[0039] The anti-collision side beam 3 is also a square tube with the same specifications as the longitudinal beam of the frame 10. The longitudinal beam of the anti-collision side beam 3 is vertical and is used to form a truck bucket installed on the frame from both sides.

[0040] The front end surface of the bumper 2 is in contact with the rear end surface of the anti-collision beam body 1 , and bumper side panels 4 in contact with the anti-collision side beams 3 are provided at both ends of the bumper 2 .

[0041] Mounting holes 6 are processed on the anti-collision side beam 3 and the bumper side plate 4. Firstly, they can be used to install devices such as a truck bed and lights, and secondly, they can be used to fix the anti-collision side beam 3 and the bumper side plate 4 together, so that the anti-collision beam body 1 forms a basic support for the bumper 2. The bumper side plate 4 is made of the same material as the bumper 2. It is mainly used together with the bumper 2 to shield the anti-collision beam body 1 and the anti-collision side beam 3 on the inner side of the frame to avoid direct rigid collision between the frame and the anti-collision beam and the outside.

[0042] An anti-collision beam support rod 12 is arranged on the front end surface of the anti-collision beam body 1, one end of the anti-collision beam support rod 12 is connected to the anti-collision beam body 1, and the other end is connected to the welding point of the longitudinal beam and the cross beam of the tricycle frame.

[0043] The anti-collision beam support rod 12 is mainly welded with the longitudinal beam. The main function of the anti-collision beam support rod 12 is to transfer the impact force received by the middle of the front side of the anti-collision beam main body 1 to the longitudinal beam of the frame through the anti-collision beam support rod 12 when it is hit violently. The connection between the anti-collision beam main body 1 and the frame 10 is more firm and the force is more uniform. Because in the front and rear directions, the longitudinal beam has a better rigid structure than the cross beam to resist deformation against the impact force from the rear front. Therefore, the middle part of the anti-collision beam main body 1 is supported by the anti-collision beam support rod 12, which can effectively avoid the deformation of the middle part of the anti-collision beam main body 1 being concave forward due to the failure to fully transfer the impact force to the longitudinal beam through the end connections on both sides when it is hit violently.

[0044] There are two anti-collision beam support rods 12, and the two anti-collision beam support rods 12 are symmetrically arranged about the central axis of the tricycle frame, and the angle between the anti-collision beam support rods 12 and the frame cross beam is between 50° and 70°.

[0045] In the present application, the connection between the anti-collision beam support rod 12 and the anti-collision beam main body 1 is located at 1 / 3 of the length direction of the anti-collision beam main body 1, that is, the length between the two anti-collision beam support rods 12 and the length from the two anti-collision beam support rods 12 to the end of the anti-collision beam main body 1 respectively account for 1 / 3 of the length of the anti-collision beam main body 1 (the length here refers to the length value in the front and rear direction of the anti-collision beam main body 1). When the anti-collision beam main body 1 receives the impact force from the rear, it is more evenly transmitted to the frame 10. When the angle is between 50°-70°, the anti-collision beam support rod 12 can be more biased towards the longitudinal beam, so that the impact force received by the anti-collision beam main body 1 is mainly transmitted to the longitudinal beam, rather than mainly to the cross beam. The reason is as mentioned above, the cross beam itself has lower resistance to longitudinal impact force than the longitudinal beam.

[0046] Working principle: When in use, the anti-collision beam body 1 is welded to the rear part of the electric tricycle frame to replace the original rear beam 11. When the tricycle collides slightly with an external person or object at the rear, first, the bumper 2 can effectively protect pedestrians through elastic deformation to avoid scratches, or prevent the anti-collision beam from directly colliding rigidly with external objects, thereby reducing the impact force; when a violent collision occurs with an external object, the anti-collision beam body 1 transmits the impact force to the frame longitudinal beam through the two side ends and the anti-collision beam support rod 12. When a more severe collision occurs, the arched structure of the anti-collision beam body 1 absorbs the impact kinetic energy by squeezing the anti-collision beam support rod 12 to deform (the anti-collision beam support rod 12 is bent, and the anti-collision beam body 1 is concave), thereby avoiding the impact force directly acting on the tricycle bucket, seat and other parts.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An anti-collision beam structure for an electric tricycle, comprising an anti-collision beam body (1) whose end is fixedly connected to a longitudinal beam of a frame, characterized in that: The anti-collision beam body (1) is an arched structure that bulges backwards, and a bumper (2) with an elastic structure is detachably provided at the rear end of the anti-collision beam body (1).

2. The anti-collision beam structure of an electric tricycle according to claim 1, characterized in that: The bumper (2) is a hollow structure with an open front end, and the cross section of the bumper (2) is arc-shaped.

3. The anti-collision beam structure of an electric tricycle according to claim 2, characterized in that: A first structural plate (7) is arranged in the middle of the front end of the bumper (2), and second structural plates (9) are arranged on both sides of the first structural plate (7), and the two second structural plates (9) are located at the ends of the bumper (2).

4. The anti-collision beam structure of an electric tricycle according to claim 3, characterized in that: A concealed buckle plate (8) is provided between the first structural plate (7) and the second structural plate (9); a buckle groove (5) corresponding to the concealed buckle plate (8) is provided on the rear end surface of the anti-collision beam body (1); and the bumper (2) is detachably mounted on the anti-collision beam body (1) by buckling the concealed buckle plate (8) with the buckle groove (5).

5. The anti-collision beam structure of an electric tricycle according to claim 1, characterized in that: Anti-collision side beams (3) are provided at both left and right ends of the anti-collision beam body (1).

6. The anti-collision beam structure of an electric tricycle according to claim 5, characterized in that: The front end surface of the bumper (2) is fitted with the rear end surface of the anti-collision beam body (1), and bumper side panels (4) fitted with the anti-collision side beams (3) are provided at both ends of the bumper (2).

7. The anti-collision beam structure of an electric tricycle according to claim 1, characterized in that: An anti-collision beam support rod (12) is arranged on the front end surface of the anti-collision beam body (1); one end of the anti-collision beam support rod (12) is connected to the anti-collision beam body (1), and the other end is connected to the welding point of the longitudinal beam and the cross beam of the tricycle frame.

8. The anti-collision beam structure of an electric tricycle according to claim 7, characterized in that: There are two anti-collision beam support rods (12), and the two anti-collision beam support rods (12) are symmetrically arranged about the central axis of the tricycle frame, and the angle between the anti-collision beam support rod (12) and the frame crossbeam is between 50° and 70°.

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