A bumper car's buffer device

Abstract

This utility model provides a buffer device for bumper cars, relating to the field of safety protection technology for amusement facilities. It includes several buffer tires and several mounting plates. The buffer tires have mounting grooves at both ends, and mounting plates are positioned between adjacent buffer tire sections. The two ends of the mounting plates are inserted into the mounting grooves of the adjacent buffer tire sections and clamped to the sidewalls of the bumper car chassis by fasteners. Each mounting plate includes a positioning part and clamping parts on both sides of the positioning part. The inner surface of the clamping parts has several protrusions to enhance the clamping force. This utility model has a simple structure, is easy to install and maintain, and can confine the impact load to a localized buffer section, effectively preventing large-scale deformation or fatigue failure of the overall annular structure due to impact, thus improving the buffering effect and durability.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology for amusement facilities, and in particular to a buffer device for bumper cars. Background Technology

[0002] In existing technology, bumper cars typically use a ring-shaped, integral rubber buffer. This buffer is installed along the side of the bumper car chassis to absorb energy and protect the car body during a collision. However, because the buffer is a single structure, when the bumper car impacts at the end, the impact load is often transmitted to both sides along the ring's annular structure, causing significant deformation of the buffer outside the impact area. Over time, the buffer is prone to fatigue damage due to repeated stress, and may even loosen or detach, posing a safety hazard. Furthermore, this type of buffer device requires complete disassembly for maintenance or replacement, which is cumbersome and increases maintenance costs and workload.

[0003] In addition, existing technologies also include replacing the buffer rubber ring with a segmented buffer structure. However, these segmented structures often use complex connectors or special clips, resulting in cumbersome installation processes and a variety of parts. This leads to low maintenance efficiency and inconvenient assembly and replacement operations, making it difficult to meet the practical application requirements for a simple structure and efficient installation. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a buffer device for bumper cars, and the following technical solution is adopted:

[0005] A bumper car's buffer device surrounds the side panel of the bumper car chassis and includes several buffer tires and several mounting plates.

[0006] The aforementioned buffer tire has mounting grooves at both ends, and the aforementioned mounting plate is provided between two adjacent buffer tire sections; the two ends of the aforementioned mounting plate are respectively inserted into the mounting grooves of the two adjacent buffer tire sections, and are clamped to the side wall of the bumper car chassis by fasteners.

[0007] As a further improvement, the mounting plate includes a positioning part and clamping parts disposed on both sides of the positioning part. The two clamping parts are respectively inserted into the mounting grooves of two adjacent sections of the buffer tire, and the ends of the buffer tires abut against the positioning part.

[0008] As a further improvement, the outer contour of the cross-section of the positioning part is an outwardly convex arc. When the mounting plate is pre-installed, the buffer tire abuts against the positioning part. When the mounting plate is locked, the positioning part and the buffer tire form the buffer space.

[0009] As a further improvement, the aforementioned positioning part is made of rubber.

[0010] As a further improvement, the aforementioned mounting groove extends to the bottom of the aforementioned buffer tire.

[0011] As a further improvement, the inner surface of the clamping part is provided with several raised strips.

[0012] Further improvements include four sections of the aforementioned buffer tires, which are respectively installed on the front, rear, left, and right sides of the bumper car chassis. The front and rear buffer tires are arc-shaped sections that conform to the curvature of the bumper car chassis sidewalls, while the left and right buffer tires are straight sections.

[0013] As a further improvement, the aforementioned buffer tire includes an inner structural layer and an outer buffer layer. The structural layer is made of glass fiber reinforced nylon with a hardness ≥80HD and a tensile strength ≥150MPa; the buffer layer has a density of 0.2-0.5g / cm³. 3 Microporous polyurethane foam material with a resilience of ≥70%.

[0014] As a further improvement, the aforementioned mounting plate is made of Q235 steel with a tensile strength ≥300MPa and a galvanized surface.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Firstly, this utility model includes several sections of buffer tires and several mounting plates. The buffer tires are installed around the sidewalls of the bumper car chassis, and the buffer tires are connected by the mounting plates to form a ring-shaped integral structure. The buffer tires include arc-shaped sections on the front and rear sides and straight sections on the left and right sides. The arc-shaped sections on the front and rear sides can closely conform to the curvature of the bumper car chassis sidewalls to disperse frontal or rear impact forces. The straight sections on the left and right sides provide a uniform force path during lateral impacts, while also facilitating mass production and installation. The segmented structure of the buffer tires can limit the impact load to the local buffer section range during a collision, preventing the overall ring structure from undergoing large-scale deformation due to local impacts, improving the durability of the buffer device, and facilitating individual section maintenance or replacement.

[0017] Secondly, in this utility model, the mounting plate includes a positioning part and clamping parts disposed on both sides of the positioning part. The outer contour of the cross-section of the positioning part is an outwardly convex arc. During pre-installation, the end of the buffer tire abuts against the positioning part. After the mounting plate is locked, a buffer space is formed between the positioning part and the end of the buffer tire, which is used to provide an additional compression stroke to absorb impact energy during impact, so that the end of the buffer tire is subjected to uniform force and to prevent damage caused by local compression.

[0018] Thirdly, in this utility model, the buffer tire has a double-layer composite structure, including an inner layer and an outer layer. The inner layer is made of glass fiber reinforced nylon with a hardness ≥80HD and a tensile strength ≥150MPa, which provides sufficient rigidity and resistance to deformation when clamped. The outer layer has a density of 0.2–0.5 g / cm³.3 Microporous polyurethane foam with a resilience of ≥70% is used to efficiently absorb and disperse collision energy, achieving a synergistic effect of fixation and buffering, and improving the buffering effect and safety.

[0019] Fourthly, in this utility model, the mounting groove of the buffer tire extends to the bottom of the buffer tire, allowing the mounting plate to be pre-installed by first fixing it to the side panel of the bumper car chassis with fasteners. Then, the buffer tire is inserted into the mounting groove from top to bottom to complete the assembly. Finally, the mounting plate is locked, simplifying the installation process and improving assembly efficiency. The inner surface of the clamping part is provided with several protruding strips to increase the friction during clamping, improve the buffer tire's anti-detachment performance, and keep the buffer device stable under high-frequency impact conditions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention assembled on the chassis of a bumper car;

[0022] Figure 2 This is a schematic diagram of the assembly structure of the mounting plate in this utility model;

[0023] Figure 3 This is a schematic diagram of the assembly structure of this utility model;

[0024] Figure 4 This is a structural diagram showing the pre-installed state and the locked state of this utility model.

[0025] Figure label:

[0026] 1-Buffer tire; 2-Mounting plate; 3-Fasteners;

[0027] 1a-Structural layer; 1b-Buffer layer; 11-Mounting groove; 21-Positioning part; 22-Clamping part; 23-Protrusion strip;

[0028] 100-Bumper car chassis. Detailed Implementation

[0029] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0030] In the description of this utility model, the terms "part", "side", "end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] like Figures 1-2 As shown, this utility model provides a buffer device for a bumper car, which is installed around the side of the bumper car chassis 100. The bumper car includes components such as the bumper car chassis 100, seats, and steering wheel, and achieves energy absorption and buffer protection during a collision through the buffer device installed around the bumper car chassis 100.

[0032] like Figure 3 As shown, the buffer device includes several buffer tires 1 and several mounting plates 2. Each buffer tire 1 is arranged in sections along the sidewall of the bumper car chassis 100, forming a ring structure to absorb impact energy when the bumper cars collide. Mounting grooves 11 are provided at both ends of each buffer tire 1 for connection and engagement with the mounting plates 2. Mounting plates 2 are positioned between adjacent buffer tire sections 1. Specifically, as... Figure 4 As shown, the two ends of the mounting plate 2 are respectively inserted into the mounting grooves 11 of the two adjacent sections of the buffer tire 1, and are clamped to the side of the bumper car chassis 100 by the fasteners 3. During the installation process, the fasteners 3 lock the mounting plate 2 to the side of the bumper car chassis 100, so that the buffer tire 1 is firmly installed on the bumper car chassis 100.

[0033] The above structure achieves the function of segmented energy absorption and local buffering of the buffer device by setting the buffer tire 1 in sections and fixing it with the mounting plate 2 and fasteners 3. This avoids the problems of overall deformation, fatigue damage or loosening and falling off caused by the large-scale transmission of impact load along the side wall during a collision.

[0034] like Figure 2 and Figure 4 As shown, the mounting plate 2 includes a positioning part 21 and clamping parts 22 disposed on both sides of the positioning part 21. The clamping parts 22 are respectively inserted into the mounting grooves 11 of two adjacent buffer tires 1. During the pre-assembly stage of the mounting plate 2, the end of the buffer tire 1 abuts against the positioning part 21. The convex arc-shaped contour of the positioning part 21 limits the end of the buffer tire 1, so that the buffer tire 1 can be quickly aligned during the initial assembly, ensuring the positional accuracy of each buffer tire 1 segment in the circumferential direction.

[0035] Furthermore, such as Figure 4 As shown, the outer contour of the cross-section of the positioning part 21 is an outwardly convex arc shape, as... Figure 4 As shown in the upper part, the pre-installation stage buffer tire 1 abuts against the arc-shaped surface of the positioning part 21; as Figure 4As shown in the lower part, after the mounting plate 2 is locked, the positioning part 21 moves inward with the mounting plate 2, and the end of the buffer tire 1 is no longer in direct contact with the positioning part 21, thereby forming a buffer space between them. This buffer space provides additional compression stroke during a collision to absorb some of the impact energy and mitigate the impact load, improving the buffer energy absorption performance of the buffer device, while preventing local compression or damage to the end of the buffer tire 1 due to rigid contact. Preferably, the positioning part 21 is made of rubber.

[0036] In a preferred embodiment, the mounting groove 11 of the buffer tire 1 extends to the bottom of the buffer tire 1. With this structure, the mounting plate 2 and fasteners 3 can be pre-fixed to the side of the bumper car chassis 100. The buffer tire 1 is then inserted into the mounting groove 11 from above and engages with the clamping part 22 of the mounting plate 2. The mounting plate 2 is then locked in place by the fasteners 3, greatly simplifying the installation process and improving assembly efficiency. Furthermore, the fact that the mounting groove 11 extends to the bottom facilitates quick disassembly of the buffer tire 1 during maintenance or replacement, eliminating the need for complete disassembly of the buffer device and improving maintenance convenience and work efficiency.

[0037] like Figure 2 As shown, the inner surface of the clamping part 22 is provided with several protrusions 23, which are used to increase the friction of the contact surface when the clamping part 22 is inserted into the mounting groove 11 of the buffer tire 1, thereby enhancing the clamping effect. By providing the protrusions 23, the clamping part 22 can effectively prevent the buffer tire 1 from loosening or falling off due to repeated impact loads during use in a tightened state, thereby improving the overall stability and safety of the buffer device.

[0038] like Figure 3 As shown, the buffer device includes four buffer tires 1, which are respectively installed on the front, rear, left, and right sides of the bumper car chassis 100. Each buffer tire 1 is arranged along the side wall of the chassis to provide buffer protection in different directions during a collision. The front and rear buffer tires 1 are arc-shaped, with their outer contours conforming to the curvature of the side wall of the bumper car chassis 100. This ensures that the front and rear buffer sections can form a tight fit with the side wall of the chassis during installation, which helps to disperse the frontal or rear impact force and avoid localized force concentration that could lead to structural damage. The left and right buffer tires 1 are straight segments, which are used to provide a uniform buffering effect during lateral collisions. They also facilitate standardized mold manufacturing and mass production, improving production efficiency.

[0039] like Figure 4As shown, the buffer tire 1 has a double-layer composite structure, consisting of an inner structural layer 1a and an outer buffer layer 1b. The structural layer 1a is made of glass fiber reinforced nylon with a hardness ≥80HD and a tensile strength ≥150MPa. This material provides sufficient rigid support and resistance to deformation when the buffer tire 1 is clamped by the clamping part 22, preventing the buffer tire 1 from breaking or permanently deforming under repeated impact loads. The outer buffer layer 1b has a density of 0.2-0.5 g / cm³. 3 Microporous polyurethane foam with a resilience of ≥70% is used to efficiently absorb and disperse impact energy during collisions, achieving buffering and energy absorption functions, which helps to improve the safety performance and durability of the buffer device.

[0040] On the other hand, the mounting plate 2 is made of Q235 steel with a tensile strength ≥300MPa and a galvanized surface. This material has excellent mechanical strength and can withstand repeated impact loads after the buffer device is installed without plastic deformation or fracture. The galvanized surface treatment of the mounting plate 2 further enhances its corrosion resistance, enabling long-term use in humid or outdoor environments, preventing rust from affecting the structural strength and reliability, thereby improving the durability and ease of maintenance of the entire buffer device.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bumper device of a bumper car, which is mounted around a side wall of a chassis (100) of the bumper car, characterized in that, Includes several buffer tires (1) and several mounting plates (2); The buffer tire (1) has mounting grooves (11) at both ends, and the mounting plate (2) is provided between two adjacent buffer tires (1); the two ends of the mounting plate (2) are respectively inserted into the mounting grooves (11) of the two adjacent buffer tires (1) and clamped to the side of the bumper car chassis (100) by fasteners (3).

2. A bumper assembly for a bumper car as defined in claim 1, wherein The mounting plate includes a positioning part (21) and clamping parts (22) disposed on both sides of the positioning part (21). The two clamping parts (22) are respectively inserted into the mounting grooves (11) of the two adjacent sections of the buffer tire (1), and the ends of the buffer tire (1) abut against the positioning part (21).

3. A bumper assembly for a bumper car as defined in claim 2, wherein The outer contour of the cross section of the positioning part (21) is an outwardly convex arc. When the mounting plate (2) is pre-installed, the buffer tire (1) abuts against the positioning part (21). When the mounting plate (2) is locked, the positioning part (21) and the buffer tire (1) form a buffer space.

4. A bumper assembly for a bumper car as defined in claim 2, wherein The positioning part (21) is made of rubber.

5. A bumper assembly for a bumper car as defined in claim 1, wherein The mounting groove (11) extends to the bottom of the buffer tire (1).

6. A bumper assembly for a bumper car as defined in claim 2 wherein, The inner surface of the clamping part (22) is provided with a plurality of protrusions (23).

7. A bumper assembly for a bumper car as defined in claim 1, wherein The system includes four buffer tires (1), which are respectively installed on the front, rear, left and right sides of the bumper car chassis (100). The buffer tires (1) on the front and rear sides are arc-shaped segments that conform to the side curvature of the bumper car chassis (100), while the buffer tires (1) on the left and right sides are straight segments.

8. A bumper assembly for a bumper car as claimed in any one of claims 1 to 7, wherein, The buffer tire (1) includes an inner structural layer (1a) and an outer buffer layer (1b). The structural layer (1a) is made of glass fiber reinforced nylon with a hardness ≥80HD and a tensile strength ≥150MPa. The buffer layer (1b) has a density of 0.2-0.5g / cm³. 3 Microporous polyurethane foam material with a resilience of ≥70%.

9. A bumper assembly for a bumper car as claimed in any one of claims 1 to 7, wherein, The mounting plate (2) is made of Q235 steel with a tensile strength ≥300MPa and a galvanized surface.

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