A recessed heavy-duty truck rear-end collision protection bumper

Abstract

This utility model discloses a recessed heavy-duty truck rear-end collision protection buffer bumper, belonging to the technical field of truck parts. The recessed heavy-duty truck rear-end collision protection buffer bumper of this utility model includes two bumper support rods, and two buffer frames are installed between the connecting plate and the support arm. A pneumatic damper is provided at the front end of each buffer frame, and a ball joint is provided at the front end of each pneumatic damper. This utility model solves the problem that existing truck rear bumpers use a liquid reservoir structure for buffering, which is complex, cumbersome, and unsuitable for long-term operation. This utility model uses connecting ears to allow the bumper support rods and support arms to fold inwards. The upper end of the support arm compresses the pneumatic damper to buffer pressure. The ball joint enables a universal connection between the pneumatic damper and the support arm, allowing the bumper support rods to buffer at any angle, compressing the pneumatic damper, improving adaptability, and offering a simple and highly adaptable structure.

Description

Technical Field

[0001] This utility model relates to the field of truck parts technology, specifically a recessed heavy-duty truck rear-end collision prevention buffer bumper. Background Technology

[0002] Truck rear bumpers are primarily made of metal, using steel plates with a thickness of over three millimeters stamped into U-shaped channels, chrome-plated on the surface, and riveted or welded to the longitudinal beams of the chassis. They are an accessory with a relatively large gap between them and the vehicle body. Currently, truck rear bumpers often do not provide ideal cushioning and protection during use.

[0003] Chinese Patent CN111942311B discloses a truck rear bumper with a buffer protection function, including a rear bumper body, a buffer cavity, a buffer plate, a liquid reservoir, and an elliptical groove. Reinforcing ribs are provided at the bottom edge of the rear bumper body, and equally spaced liquid reservoirs are located at the center of the top of the rear bumper body. An elastic cover plate is detachably connected to the inner wall of the rear bumper body. This patent not only improves the buffer protection effect of the truck rear bumper and extends its service life, but also increases its structural strength.

[0004] The aforementioned patented truck rear bumper uses a liquid reservoir structure for cushioning during actual use, which is complex and cumbersome and cannot be adapted to long-term operation; therefore, it cannot meet current needs. In response, we propose a recessed heavy-duty truck rear-end collision protection buffer bumper. Utility Model Content

[0005] The purpose of this utility model is to provide a recessed heavy-duty truck rear-end collision buffer bumper, which solves the problem mentioned in the background art that the truck rear bumper uses a liquid storage box structure for buffering in actual use, which is complex, cumbersome and cannot be adapted to long-term work.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sunken heavy-duty truck rear-end collision buffer bumper, comprising two bumper support rods, each with a support arm mounted at its rear end, a connecting plate at the upper end of the support arm, two buffer frames mounted between the connecting plate and the support arm, a pneumatic damper at the front end of the buffer frame, a ball joint at the front end of the pneumatic damper, and the front end of the pneumatic damper being movably connected to the support arm via the ball joint.

[0007] Preferably, taillights are provided on both rear ends of the two bumper support rods, and a rear reflector strip is provided in the middle of the bumper support rod.

[0008] Preferably, both sides of the bumper support are fitted with side silicone heads, which are bonded to the bumper support.

[0009] Preferably, a reinforcing rib is installed at the rear end of the support arm, and a fixing plate is installed on both sides of the reinforcing rib. The fixing plate is fixedly connected to the bumper support rod and the support arm respectively by fixing screws, and the reinforcing rib is welded to the two fixing plates.

[0010] Preferably, the connecting plate has several integrally formed positioning plates on its exterior, the positioning plates have locking holes on their surfaces, and the connecting plate is fixedly connected to the rear of the truck by fixing screws.

[0011] Preferably, the front end of the bumper support rod is provided with two connecting ears, and the bumper support rod is hinged to the upper end of the support arm through the connecting ears.

[0012] Preferably, the upper ends of both buffer frames are fixedly connected to the connecting plate by fixing screws, and the front end of the buffer frame is fixedly connected to the pneumatic damper by a pin.

[0013] Preferably, a rubber spherical sleeve is fixedly installed at the rear end of the support arm, the spherical joint is fixedly connected to the pneumatic damper, and the spherical joint is embedded inside the rubber spherical sleeve and movably connected to the rubber spherical sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The bumper support rod of this utility model is connected to a connecting plate via a support arm. The connecting plate is fixed to the rear of the truck. A pneumatic damper, along with connecting ears, vertically connects the bumper support rod and the connecting plate. When the bumper support rod is subjected to external force, the connecting ears cause the bumper support rod and the support arm to fold inward. The upper end of the support arm compresses the pneumatic damper to buffer the pressure, effectively providing protection. Furthermore, during long-term operation, the ball joint enables a universal connection between the pneumatic damper and the support arm, allowing the bumper support rod to buffer at any angle and compress the pneumatic damper, improving adaptability. The structure is simple and highly adaptable. Attached Figure Description

[0016] Figure 1 This is an axonometric view of the front view of this utility model;

[0017] Figure 2 This is an axonometric view of the present invention viewed from below;

[0018] Figure 3 This is an axonometric view of the side of this utility model;

[0019] Figure 4 This utility model Figure 3 A magnified view of a portion of area A in the middle.

[0020] In the diagram: 1. Bumper support rod; 101. Taillight; 102. Rear reflector; 103. Side silicone head; 2. Support arm; 201. Reinforcing rib; 202. Fixing plate; 203. Rubber ball sleeve; 3. Connecting plate; 301. Positioning plate; 302. Locking hole; 303. Buffer frame; 304. Connecting ear; 305. Air pressure damper; 306. Ball joint. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] To address the issue that existing truck rear bumpers, which use a liquid reservoir structure for cushioning, are complex and cumbersome, and unsuitable for long-term operation, please refer to... Figure 1 - Figure 4 This embodiment provides the following technical solution:

[0023] A recessed rear-end collision avoidance buffer bumper for heavy-duty trucks includes two bumper support rods 1. Each bumper support rod 1 has a support arm 2 installed at its rear end. A connecting plate 3 is provided at the upper end of the support arm 2. Two buffer frames 303 are installed between the connecting plate 3 and the support arm 2. The bumper support rod 1 is connected to the connecting plate 3 through the support arm 2. The connecting plate 3 is fixed to the rear of the truck. The position between the bumper support rod 1 and the connecting plate 3 is vertically connected by a pneumatic damper 305 and a connecting lug 304. A pneumatic damper 305 is provided at the front end of the buffer frame 303. A ball joint 306 is provided at the front end of the pneumatic damper 305. The front end of the pneumatic damper 305 is movably connected to the support arm 2 through the ball joint 306.

[0024] The front end of the bumper support rod 1 is provided with two connecting ears 304. The bumper support rod 1 is hinged to the upper end of the support arm 2 through the connecting ears 304. The connecting ears 304 cause the bumper support rod 1 and the support arm 2 to fold inward. The upper end of the support arm 2 compresses the air pressure damper 305 to buffer the pressure and effectively provide protection.

[0025] In addition, the upper ends of both buffer frames 303 are fixedly connected to the connecting plate 3 by fixing screws, and the front end of the buffer frame 303 is fixedly connected to the pneumatic damper 305 by a pin.

[0026] In fact, a rubber spherical sleeve 203 is fixedly installed at the rear end of the support arm 2, and a spherical joint 306 is fixedly connected to the pneumatic damper 305. The spherical joint 306 is embedded inside the rubber spherical sleeve 203 and is movably connected to the rubber spherical sleeve 203. During long-term operation, the pneumatic damper 305 and the support arm 2 are universally connected through the spherical joint 306, and the bumper support rod 1 can achieve buffering at any angle, squeezing the pneumatic damper 305, improving adaptability. The structure is simple and highly adaptable.

[0027] Specifically, the bumper support rod 1 is connected to the connecting plate 3 via the support arm 2. The connecting plate 3 is fixed to the rear of the truck. The position between the bumper support rod 1 and the connecting plate 3 is vertically connected by a pneumatic damper 305 and a connecting ear 304. When the bumper support rod 1 is subjected to external force, the connecting ear 304 causes the bumper support rod 1 and the support arm 2 to fold inward. The upper end of the support arm 2 compresses the pneumatic damper 305 to buffer the pressure and effectively provide protection. In long-term operation, the ball joint 306 enables a universal connection between the pneumatic damper 305 and the support arm 2, allowing the bumper support rod 1 to buffer at any angle and compress the pneumatic damper 305, improving adaptability. The structure is simple and highly adaptable.

[0028] To address the issues of existing truck rear bumpers being structurally complex, hindering installation, and obstructing maintenance during practical use, please refer to... Figure 1 - Figure 4 This embodiment provides the following technical solution:

[0029] Both rear taillights 101 are provided on both sides of the rear end of the two bumper support rods 1, and a rear reflector strip 102 is provided in the middle of the bumper support rod 1.

[0030] Both sides of the bumper support rod 1 are fitted with side silicone heads 103, which are bonded to the bumper support rod 1. The side silicone heads 103 protect both ends of the bumper support rod 1, preventing damage to both ends of the bumper support rod 1 and improving safety.

[0031] A reinforcing rib 201 is installed at the rear end of the support arm 2. Fixing plates 202 are installed on both sides of the reinforcing rib 201. The fixing plates 202 are fixedly connected to the bumper support rod 1 and the support arm 2 respectively by fixing screws. The reinforcing rib 201 is welded to the two fixing plates 202. In long-term operation, the two bumper support rods 1 are combined by the reinforcing rib 201 and the fixing plates 202. The structure is compact, easy to install and disassemble, and convenient for long-term operation.

[0032] The connecting plate 3 has several integrally formed positioning plates 301 on its exterior. The surface of the positioning plates 301 is provided with locking holes 302. The connecting plate 3 is fixedly connected to the rear of the truck by fixing screws. The connecting plate 3 and the truck are fixed by locking holes 302. After installation, the position of the bumper support rod 1 is kept stable.

[0033] Specifically, during long-term operation, the two bumper support rods 1 are combined by reinforcing ribs 201 and fixing plates 202. The structure is compact, easy to install and disassemble, and suitable for long-term operation. The connecting plate 3 and the truck are fixed by locking holes 302. After installation, the position of the bumper support rod 1 remains stable. The two ends of the bumper support rod 1 are protected by side silicone heads 103 to prevent damage to the two ends of the bumper support rod 1 and improve safety.

[0034] Working Principle: In use, two bumper support rods 1 are combined by reinforcing ribs 201 and fixing plates 202, resulting in a compact structure that facilitates installation and disassembly and long-term operation. The connecting plate 3 and the truck are fixed via locking holes 302, ensuring the stable position of the bumper support rods 1 after installation. Side silicone heads 103 protect both ends of the bumper support rods 1, preventing damage and improving safety. A pneumatic damper 305, along with connecting ears 304, vertically connects the bumper support rods 1 and the connecting plate 3. When the bumper support rods 1 are subjected to external force, the connecting ears 304 cause the bumper support rods 1 and support arms 2 to fold inwards. The upper end of the support arm 2 compresses the pneumatic damper 305 to buffer the pressure, effectively providing protection. Furthermore, during long-term operation, a ball joint 306 enables a universal connection between the pneumatic damper 305 and the support arm 2, allowing the bumper support rods 1 to buffer at any angle and compress the pneumatic damper 305, improving adaptability. The structure is simple and highly adaptable.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A recessed rear-end collision buffer bumper for heavy-duty trucks, comprising two bumper support rods (1), characterized in that, Support arms (2) are installed at the rear ends of both bumper support rods (1). A connecting plate (3) is provided at the upper end of the support arm (2). Two buffer frames (303) are installed between the connecting plate (3) and the support arm (2). A pneumatic damper (305) is provided at the front end of the buffer frame (303). A ball joint (306) is provided at the front end of the pneumatic damper (305). The front end of the pneumatic damper (305) is movably connected to the support arm (2) through the ball joint (306).

2. A recessed heavy-duty truck rear-end collision prevention buffer bumper according to claim 1, characterized in that, Both rear ends of the two bumper support rods (1) are provided with taillights (101), and a rear reflector strip (102) is provided in the middle of the bumper support rods (1).

3. A recessed heavy-duty truck rear-end collision buffer bumper according to claim 1, characterized in that, Both sides of the bumper support rod (1) are fitted with side silicone heads (103), and the side silicone heads (103) are bonded to the bumper support rod (1).

4. A recessed heavy-duty truck rear-end collision buffer bumper according to claim 1, characterized in that, The rear end of the support arm (2) is equipped with a reinforcing rib (201), and a fixing plate (202) is installed on both sides of the reinforcing rib (201). The fixing plate (202) is fixedly connected to the bumper support rod (1) and the support arm (2) respectively by fixing screws. The reinforcing rib (201) is welded to the two fixing plates (202).

5. A recessed heavy-duty truck rear-end collision prevention buffer bumper according to claim 1, characterized in that, The connecting plate (3) is provided with a number of integrally formed positioning plates (301) on its exterior. The positioning plates (301) are provided with locking holes (302) on their surfaces. The connecting plate (3) is fixedly connected to the rear of the truck by fixing screws.

6. A recessed heavy-duty truck rear-end collision prevention buffer bumper according to claim 1, characterized in that, The front end of the bumper support rod (1) is provided with two connecting ears (304), and the bumper support rod (1) is hinged to the upper end of the support arm (2) through the connecting ears (304).

7. A recessed heavy-duty truck rear-end collision buffer bumper according to claim 1, characterized in that, The upper ends of the two buffer frames (303) are fixedly connected to the connecting plate (3) by fixing screws, and the front end of the buffer frame (303) is fixedly connected to the air pressure damper (305) by a pin.

8. A recessed heavy-duty truck rear-end collision buffer bumper according to claim 7, characterized in that, A rubber spherical sleeve (203) is fixedly installed at the rear end of the support arm (2). The spherical joint (306) is fixedly connected to the pneumatic damper (305). The spherical joint (306) is embedded inside the rubber spherical sleeve (203) and is movably connected to the rubber spherical sleeve (203).

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