A manually detachable rear center pillar structure of a passenger car

Abstract

The utility model relates to the field of passenger car, concretely relates to a manual detachable passenger car rear middle protection structure, including rear mounting frame, rear middle protection body, the rear side both ends of rear mounting frame are fixed with the side plate, the both ends of rear middle protection body are pressed together on the side plate, the inboard both ends of rear middle protection body are fixed with the connecting bending plate, the connecting bending plate includes vertical installation section and the upper connecting section, lower connecting section connected in the both sides of vertical installation section, the connecting section is fixedly connected with rear middle protection body, the vertical installation section is intervally arranged with rear middle protection body, the fixed mounting bending plate is established on rear mounting frame, the mounting part of mounting bending plate and vertical installation section mutually adhere, and are equipped with the dismounting connecting piece, and the inboard surface of vertical installation section and rear middle protection body mutually interval, provide the action space for hand, and the dismounting connecting piece is conveniently manually disassembled and installed, reduce assembly and disassembly difficulty, improve the repair installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of buses, specifically to a manually detachable rear center bumper structure for buses. Background Technology

[0002] A passenger bus is a commercial vehicle specifically designed to carry passengers and their personal luggage. It plays a vital role in various fields such as public transportation, tourism, and group commuting. Passenger buses come in diverse types to meet the needs of different scenarios. In terms of size, there are compact and agile light passenger buses, which are typically shorter and have fewer seats. They can maneuver easily through narrow city streets and readily handle short-distance, small-scale transportation tasks, such as community shuttle services or employee commuting for small businesses.

[0003] The rear center bumper structure of a bus is a critical safety and load-bearing component at the rear of the vehicle, responsible for protection, energy absorption, and structural support. Existing rear center bumper structures typically employ multi-level, multi-form composite connection methods to balance structural strength, assembly precision, and ease of maintenance. Their core connection logic achieves load transfer through mechanical fastening and structural interlocking, while buffering design reduces vibration transmission. However, the complexity of the connection mechanism leads to difficulties in assembly and disassembly, reducing maintenance efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a manually detachable rear center bumper structure for buses, aiming to improve the problem that the existing rear center bumper connection mechanism is complex, leading to difficulties in assembly and disassembly and reduced maintenance efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A manually detachable rear center bumper structure for a bus includes a rear mounting bracket and a rear center bumper body, with side plates fixed to both ends of the rear side of the rear mounting bracket.

[0007] The two ends of the rear center protection body are pressed onto the side plate. The two inner ends of the rear center protection body are fixed with connecting bending plates. The connecting bending plates include a vertical installation section and an upper connecting section and a lower connecting section connected to both sides of the vertical installation section. The connecting section is fixedly connected to the rear center protection body. The vertical installation section is spaced apart from the rear center protection body.

[0008] A mounting bend plate is fixed on the rear mounting bracket. The mounting part of the mounting bend plate fits into the vertical mounting section and is provided with a disassembly connector.

[0009] Furthermore, the upper outer surface of the rear center protection body is provided with an inner groove, the bottom of which protrudes from the inner surface of the rear center protection body, forming an upper convex and lower concave structure on the inner surface of the rear center protection body. The end of the upper connecting section corresponds to the upper convex position, and the lower connecting section corresponds to the lower concave position, extending into the lower concave position and being fixedly connected to the inner surface of the rear center protection body. Simultaneously, the inner groove provides space for the worker's hands to grasp the rear center protection body, facilitating manual assembly.

[0010] Furthermore, at least one first strip-shaped hole is provided on the vertical mounting section, and the extension direction of the first strip-shaped hole is the same as the width direction of the rear center guard body.

[0011] The mounting part is provided with a second strip hole corresponding to the position of the first strip hole, and the extension direction of the second strip hole is the same as the length direction of the rear center guard body;

[0012] The disassembly connector passes through the first and second strip holes.

[0013] Furthermore, a third strip-shaped hole is provided on the fixing part of the mounting bending plate, the fixing part is perpendicular to the extension direction of the rear center protection body, and the extension direction of the third strip-shaped hole is perpendicular to the extension direction of the rear center protection body.

[0014] The fixing part is attached to the rear mounting bracket, and a fixing element is provided between the fixing part and the rear mounting bracket.

[0015] Furthermore, a trailer notch is provided in the middle of the rear center body, and a connecting piece is fixed to the trailer notch;

[0016] A trailer hook is fixed to the middle of the rear side of the rear mounting bracket, and the trailer hook is arranged opposite to the trailer notch.

[0017] Furthermore, the side of the side plate is provided with a supporting curved surface, which slopes outward from the top of the side plate to the bottom;

[0018] The rear center body has pressing curved surfaces on both sides, the curvature of the pressing curved surfaces is the same as the curvature of the supporting curved surfaces, and the pressing curved surfaces and the supporting curved surfaces fit together.

[0019] Furthermore, the inner side of the pressed curved surface is provided with an outwardly extending positioning plate, the end of which extends to the inner side of the side plate on the same side, and the positioning plate and the inner side of the side plate abut against each other.

[0020] Furthermore, the top two sides of the rear center guard body are provided with outwardly extending front baffles, and the top of the side plate is provided with an upwardly extending rear baffle, the end of which extends to the inside of the front baffle.

[0021] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0022] The inner ends of the rear center protection body are equipped with connecting bending plates to connect with the rear mounting bracket, which improves the installation stability of the rear center protection body; at the same time, the vertical mounting section is spaced apart from the inner side of the rear center protection body, providing space for hand movement, which facilitates manual disassembly and installation of the disassembly connectors, reduces the difficulty of assembly and disassembly, and improves maintenance and installation efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the manually detachable rear center bumper structure of the bus according to the present invention.

[0024] Figure 2 This is a schematic diagram of the rear structure of the manually detachable rear center bumper structure of the bus described in this utility model.

[0025] Figure 3 This is an exploded structural diagram of the manually detachable rear center protection structure of the bus described in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Rear mounting bracket; 11. Mounting bending plate; 111. Mounting part; 1111. Second strip hole; 112. Fixing part; 1121. Third strip hole; 12. Trailer hook;

[0028] 2. Rear center body; 21. Connecting bending plate; 211. Upper connecting section; 212. Vertical mounting section; 2121. First strip hole; 213. Lower connecting section; 22. Inner groove; 23. Trailer notch; 24. Connecting piece; 25. Pressed curved surface; 251. Positioning plate; 26. Front baffle;

[0029] 3. Side panel; 31. Supporting curved surface; 32. Rear baffle;

[0030] 4. Disassemble the connecting parts; 41. Bolts; 42. Nuts; 43. Washers. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0032] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0034] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Example

[0036] Please refer to Figure 1-3 As shown, this embodiment provides a manually detachable rear center bumper structure for a bus, including a rear mounting bracket 1 and a rear center bumper body 2. Side plates 3 are fixed to both ends of the rear side of the rear mounting bracket 1. The two ends of the rear center bumper body 2 are pressed onto the side plates 3. Connecting bending plates 21 are fixed to both ends of the inner side of the rear center bumper body 2. The connecting bending plates 21 include a vertical mounting section 212 and an upper connecting section 211 and a lower connecting section 213 connected to both sides of the vertical mounting section 212. The connecting sections are fixedly connected to the rear center bumper body 2, and the vertical mounting section 212 is spaced apart from the rear center bumper body 2. The mounting bending plate 11 is fixed on the rear mounting bracket 1. The mounting part 111 of the mounting bending plate 11 fits against the vertical mounting section 212 and is provided with a disassembly connector 4.

[0037] The inner ends of the rear center protection body 2 are provided with connecting bending plates 21 to connect with the rear mounting bracket 1, which improves the installation stability of the rear center protection body 2; at the same time, the vertical mounting section 212 is spaced apart from the inner side of the rear center protection body 2, providing space for hand movement, which facilitates manual disassembly and installation of the disassembly connector 4, reduces the difficulty of assembly and disassembly, and improves the efficiency of maintenance and installation.

[0038] Furthermore, an inner groove 22 is provided on the upper part of the outer side surface of the rear center protection body 2. The bottom of the groove 22 protrudes from the inner side surface of the rear center protection body 2, forming an upper convex and lower concave structure on the inner side surface of the rear center protection body 2. The end of the upper connecting section 211 corresponds to the upper convex position, and the lower connecting section 213 corresponds to the lower concave position and extends into the lower concave position to be fixedly connected to the inner side surface of the rear center protection body 2. The concave structure makes the length of the lower connecting section 213 greater than the length of the upper connecting section 211, giving the lower connecting section 213 a longer lever arm to support the lower side of the rear center protection body 2, further improving the installation stability of the rear center protection body 2. At the same time, the inner groove 22 provides space for the worker's hands to grasp, facilitating manual assembly of the rear center protection body 2.

[0039] At least one first strip-shaped hole 2121 is provided on the vertical mounting section 212, and the extension direction of the first strip-shaped hole 2121 is the same as the width direction of the rear center protection body 2. A second strip-shaped hole 1111 is provided on the mounting part 111, corresponding to the position of the first strip-shaped hole 2121, and the extension direction of the second strip-shaped hole 1111 is the same as the length direction of the rear center protection body 2. The disassembly connector 4 passes through the first strip-shaped hole 2121 and the second strip-shaped hole 1111. In this embodiment, there are two first strip-shaped holes 2121 on the vertical mounting section 212, and the two first strip-shaped holes 2121 are arranged at intervals in the vertical direction; there are also two second strip-shaped holes 1111 on the corresponding mounting part 111, and the second strip-shaped holes 1111 and the first strip-shaped holes 2121 correspond one-to-one. A four-point connection structure is formed on the rear side of the rear center protection body 2 to prevent the rear center protection body 2 from deflecting around the connection position as the center, and to ensure the accuracy of the position of the rear center protection body 2 after installation. Furthermore, the extension direction of the first strip-shaped hole 2121 is the same as the width direction of the rear center protection body 2, that is, the first strip-shaped hole 2121 extends vertically, and the extension direction of the second strip-shaped hole 1111 is the same as the length direction of the rear center protection body 2, that is, the second strip-shaped hole 1111 extends horizontally. The second strip-shaped hole 1111 utilizes its own opening length to facilitate the adjustment of the horizontal installation position of the rear center protection body 2; at the same time, the first strip-shaped hole 2121 utilizes its own opening length to facilitate the adjustment of the vertical installation position of the rear center protection body 2. In this embodiment, the disassembly connector 4 includes a bolt 41, a nut 42, and a washer 43. The free end of the bolt 41 passes through the second strip-shaped hole 1111 and the first strip-shaped hole 2121, and extends outward over the washer 43. The nut 42 is threaded onto the free end of the bolt 41 and abuts against the washer 43. The washer 43 fits against the vertical installation section 212, realizing the detachable installation of the rear center protection body 2.

[0040] Furthermore, a third strip-shaped hole 1121 is provided on the fixing part 112 of the mounting bending plate 11. The fixing part 112 is perpendicular to the extension direction of the rear center protection body 2, and the extension direction of the third strip-shaped hole 1121 is perpendicular to the extension direction of the rear center protection body 2. The fixing part 112 is attached to the rear mounting frame 1, and a fixing member is provided between the fixing part 112 and the rear mounting frame 1. In this embodiment, the fixing member is a bolt 41. The fixing part 112 is fixed to the rear mounting frame 1 by the bolt 41, and the position of the mounting part 111 of the mounting bending plate 11 is adjusted by the third strip-shaped hole 1121, so that the mounting part 111 can be fitted and connected with connecting bending plates 21 of different specifications, thereby improving the overall adaptability.

[0041] The rear center support body 2 has a trailer notch 23 in the middle, and a connecting piece 24 is fixed to the trailer notch 23; a trailer hook 12 is fixed to the middle of the rear side of the rear mounting bracket 1, and the trailer hook 12 is arranged opposite to the trailer notch 23. The trailer notch 23 is closed by the connecting piece 24. When towing is required, the connecting piece 24 is removed, and the towing rope can pass through the trailer notch 23 and connect to the trailer hook 12, improving maintenance efficiency.

[0042] The side panel 3 has a supporting curved surface 31 on its side, which slopes outward from the top to the bottom. The opposing supporting curved surfaces 31 of the two side panels 3 form a support structure that is larger at the top and smaller at the bottom. The rear center protection body 2 has pressing curved surfaces 25 on both sides, and the curvature of the pressing curved surfaces 25 is the same as that of the supporting curved surfaces 31. The two sides of the rear center protection body 2 form a connection structure that is smaller at the top and larger at the bottom. The pressing curved surfaces 25 and the supporting curved surfaces 31 fit together, effectively increasing the contact area between the rear center protection body 2 and the side panel 3. The side panels 3, located on both sides, provide support towards the center of the rear center protection body 2, ensuring the accuracy of the installation position of the rear center protection body 2.

[0043] An outwardly extending positioning plate 251 is provided on the inner side of the pressed curved surface 25. The end of the positioning plate 251 extends to the inner side of the side plate 3 on the same side, and the positioning plate 251 abuts against the inner side of the side plate 3. The positioning plate 251 is located on the inner side of the side plate 3 and abuts against the inner side of the side plate 3. The inner side of the side plate 3 is used to limit the rear center protection body 2. It cooperates with the installation bending plate 11 to form a multi-point limiting structure, which further ensures the stability of the rear center protection structure after installation. Furthermore, the top two sides of the rear center protection body 2 are provided with outwardly extending front baffles 26, and the top of the side plate 3 is provided with an upwardly extending rear baffle 32. The end of the rear baffle 32 extends to the inner side of the front baffle 26. The front baffle 26 is fitted to the front side of the rear baffle 32 and fits against the rear baffle 32. The front baffle 26 and the positioning plate 251 cooperate with the side plate 3 on the front and rear sides of the side plate 3, respectively, which effectively improves the installation stability of the rear center protection structure on both sides.

[0044] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A manually detachable rear center bumper structure for a passenger bus, characterized in that, It includes a rear mounting bracket and a rear center protection body, with side plates fixed at both ends of the rear side of the rear mounting bracket; The two ends of the rear center protection body are pressed onto the side plate. The two inner ends of the rear center protection body are fixed with connecting bending plates. The connecting bending plates include a vertical installation section and an upper connecting section and a lower connecting section connected to both sides of the vertical installation section. The connecting section is fixedly connected to the rear center protection body. The vertical installation section is spaced apart from the rear center protection body. A mounting bend plate is fixed on the rear mounting bracket. The mounting part of the mounting bend plate fits into the vertical mounting section and is provided with a disassembly connector.

2. The manually detachable rear center bumper structure for passenger vehicles according to claim 1, characterized in that: The upper part of the outer side surface of the rear center protection body is provided with an inner groove. The bottom of the groove protrudes from the inner side surface of the rear center protection body, forming an upper convex and lower concave structure on the inner side surface of the rear center protection body. The end of the upper connecting section corresponds to the upper convex position, and the lower connecting section corresponds to the lower concave position and extends into the lower concave position to be fixedly connected to the inner side surface of the rear center protection body.

3. The manually detachable rear center bumper structure for passenger vehicles according to claim 1, characterized in that: At least one first strip-shaped hole is provided on the vertical installation section, and the extension direction of the first strip-shaped hole is the same as the width direction of the rear center protection body. The mounting part is provided with a second strip hole corresponding to the position of the first strip hole, and the extension direction of the second strip hole is the same as the length direction of the rear center guard body; The disassembly connector passes through the first and second strip holes.

4. The manually detachable rear center bumper structure for passenger vehicles according to claim 1, characterized in that: The fixing part of the mounting bending plate is provided with a third strip hole. The fixing part is perpendicular to the extension direction of the rear center protection body. The extension direction of the third strip hole is perpendicular to the extension direction of the rear center protection body. The fixing part is attached to the rear mounting bracket, and a fixing element is provided between the fixing part and the rear mounting bracket.

5. The manually detachable rear center bumper structure for passenger vehicles according to claim 1, characterized in that: The rear center body has a trailer notch in the middle, and a connecting piece is fixed to the trailer notch; A trailer hook is fixed to the middle of the rear side of the rear mounting bracket, and the trailer hook is arranged opposite to the trailer notch.

6. The manually detachable rear center bumper structure for passenger vehicles according to claim 1, characterized in that: The side of the side plate is provided with a supporting curved surface, which slopes outward from the top of the side plate to the bottom; The rear center body has pressing curved surfaces on both sides, the curvature of the pressing curved surfaces is the same as the curvature of the supporting curved surfaces, and the pressing curved surfaces and the supporting curved surfaces fit together.

7. The manually detachable rear center bumper structure for passenger vehicles according to claim 6, characterized in that: The inner side of the pressed curved surface is provided with an outwardly extending positioning plate, the end of which extends to the inner side of the side plate on the same side, and the positioning plate and the inner side of the side plate abut against each other.

8. The manually detachable rear center bumper structure for passenger vehicles according to claim 1, characterized in that: The rear center body has outwardly extending front baffles on both sides of its top, and an upwardly extending rear baffle on the top of the side plate, with the end of the rear baffle extending to the inside of the front baffle.

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