CN220151790U

CN220151790U - Automobile plastic buffer

Info

Publication number: CN220151790U
Application number: CN202321399824.1U
Authority: CN
Inventors: 汤昌银; 顾晴杰
Original assignee: Kunshan Prius Plastic Hardware Co ltd
Current assignee: Kunshan Prius Plastic Hardware Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-12-08
Anticipated expiration: 2033-06-05

Abstract

The utility model provides an automobile plastic buffer, and belongs to the technical field of buffers. This car plastics buffer, including installing buffer body and the connecting piece of sliding connection in the buffer body on the car, this internally installed oil injection mechanism of buffer, be connected with buffer spring between connecting piece and the oil injection mechanism, and with be connected with the attenuator that is located buffer spring inboard between buffer body bottom, the connecting piece can press oil injection mechanism to make oil spray on buffer spring. Through at buffer body internally mounted oil injection mechanism, when car vibration, the connecting piece can extrude oil injection mechanism, can compress buffer spring simultaneously to oil injection mechanism can spray the lubricating oil to buffer spring on, makes lubricating oil at buffer spring's surface downwardly flowing, and then in order to play the lubrication effect to buffer spring, can not influence buffer spring's structural strength simultaneously, in order to improve buffer spring's life.

Description

Automobile plastic buffer

Technical Field

The utility model relates to the field of buffers, in particular to an automobile plastic buffer.

Background

Bumpers are an important component of automobiles that cushion and attenuate shock and vibration forces and prevent the automobile from vibrating to cause damage.

In the use of an automobile buffer, the buffer with the built-in spring needs to be coated with lubricating oil so as to prolong the service life of the buffer, and the Chinese patent utility model with the patent number of CN214888537U discloses the spring of the automobile buffer.

In the scheme, the spring body is compressed, so that the spring bodies are mutually extruded and collided, the oil plug is extruded and moved upwards, the baffle plate is simultaneously moved upwards, and the first reset spring is extruded, after the baffle plate is far away from the oil outlet, lubricating oil in the oil cavity flows out through the oil outlet, so that a self-lubricating effect is realized, however, in the actual use process, the spring structure strength can be influenced due to the fact that the oil cavity in the spring is too much, particularly when an automobile vibrates strongly, excessive pressure can be generated on the spring, the spring is extruded, and the oil cavity in the spring is arranged, so that the spring is weakened in pressure resistance, so that the spring is reduced in pressure resistance, deformation and the like can occur, and the service life of the spring is shortened.

Disclosure of Invention

In order to make up for the defects, the utility model provides an automobile plastic buffer, and aims to solve the problem that the structure strength of an oil cavity is influenced by the arrangement of an oil cavity in an internal control mode of a spring in the prior art.

The embodiment of the utility model provides an automobile plastic buffer, which comprises a buffer body arranged on an automobile and a connecting piece connected in the buffer body in a sliding way, wherein an oil spraying mechanism is arranged in the buffer body, a buffer spring is connected between the connecting piece and the oil spraying mechanism, a damper positioned at the inner side of the buffer spring is connected between the connecting piece and the bottom of the buffer body, and the connecting piece can press the oil spraying mechanism so as to spray oil on the buffer spring.

In a specific embodiment, the connecting piece comprises a first piston arranged in the buffer body in a sliding manner and a connecting rod connected with the top of the first piston, the connecting rod penetrates through the top of the buffer body in a sliding manner, and one end of the buffer spring and the output end of the damper are connected with the bottom of the first piston.

In a specific embodiment, a plurality of compression bars are fixedly connected to the bottom of the first piston, a plurality of second pistons which are annularly arranged are fixedly connected to the bottom of each compression bar, and the second pistons can press oil in the oil injection mechanism.

In a specific embodiment, the oil injection mechanism comprises an oil storage barrel fixedly mounted at the bottom of the buffer body, the second piston is slidably arranged between the buffer body and the side wall of the oil storage barrel, the bottom of the side wall of the oil storage barrel is concavely arranged towards the middle to form an annular platform, one end of the buffer spring is connected to the annular platform, and a plurality of oil injection pipes are communicated with the side wall of the annular platform.

In a specific embodiment, a plurality of the oil spray pipes are all L-shaped, and all enter the buffer spring from the bottom of the buffer spring, the top of the side wall of the oil spray pipe is provided with an opening arranged towards the buffer spring, and the oil spray pipe is internally provided with a one-way spray head positioned at the inner side of the opening.

In a specific embodiment, the unidirectional spray head comprises a conical tube fixedly mounted on the inner wall of the oil spray tube, wherein the top of the conical tube is fixedly connected with a current limiting arc plate protruding towards the outer side of the opening and two elastic plates protruding towards the outer side of the opening, and the two elastic plates can be closed with the current limiting arc plate.

In a specific embodiment, a plurality of pipelines penetrate through the side wall of the annular platform, a plurality of elastic blocks capable of being closed are installed in the pipelines, an arc-shaped surface is formed after the elastic blocks are closed, and the arc-shaped surface protrudes towards the inner wall of the annular platform.

The utility model has the beneficial effects that: through at buffer body internally mounted oil injection mechanism, when car vibration, the connecting piece can extrude oil injection mechanism, can compress buffer spring simultaneously to oil injection mechanism can spray the lubricating oil to buffer spring on, makes lubricating oil at buffer spring's surface downwardly flowing, and then in order to play the lubrication effect to buffer spring, can not influence buffer spring's structural strength simultaneously, in order to improve buffer spring's life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a main structure of an automobile plastic buffer according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an automotive plastic bumper according to an embodiment of the present utility model;

FIG. 3 is a schematic bottom view of a fuel injection mechanism in an automotive plastic bumper according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram showing the relative positions of dampers in an automotive plastic bumper according to an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 3 at A;

fig. 6 is a partial enlarged view at B in fig. 4.

In the figure: 10-a buffer body; 20-connecting piece; 210-a first piston; 220-connecting rod; 30-an oil injection mechanism; 310-an oil storage barrel; 320-oil injection pipe; 40-buffer springs; 50-a damper; 60-pressing rods; 610-a second piston; 70-opening; 80-a one-way spray head; 810-conical tube; 820-a current limiting arcuate plate; 830-elastic plate; 90-piping; 910-elastic blocks.

Detailed Description

The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-6, the present utility model provides a plastic bumper for an automobile, which includes a bumper body 10 mounted on the automobile and a connecting piece 20 slidably connected in the bumper body 10, wherein an oil spraying mechanism 30 is mounted in the bumper body 10, a buffer spring 40 is connected between the connecting piece 20 and the oil spraying mechanism 30, and a damper 50 located inside the buffer spring 40 is connected between the connecting piece 20 and the bottom of the bumper body 10, and the connecting piece 20 can press the oil spraying mechanism 30 to spray oil on the buffer spring 40.

When setting up, buffer body 10 has current plastics material to make, when the vibration appears in the automobile body in-process of traveling, connecting piece 20 can push down buffer spring 40, uses simultaneously with the attenuator 50 cooperation to realize the shock attenuation purpose to the automobile body, and can extrude oil spout mechanism 30 when connecting piece 20 moves down, makes its inside lubricating oil spray on buffer spring 40, in order to play the lubrication effect.

Referring to fig. 2 and 3, the connecting piece 20 includes a first piston 210 slidably disposed in the buffer body 10 and a connecting rod 220 connected to the top of the first piston 210, where the connecting rod 220 slidably penetrates through the top of the buffer body 10, one end of the buffer spring 40 and the output end of the damper 50 are both connected to the bottom of the first piston 210, the bottom of the first piston 210 is fixedly connected with a plurality of compression rods 60, the bottom of the plurality of compression rods 60 is fixedly connected with a second piston 610 disposed in a ring shape, and the second piston 610 can press oil inside the oil injection mechanism 30.

Specifically, the damper body 10 and the connecting structure between the connecting rod 220 and the vehicle body are all of the prior art, the connecting rod 220 drives the first piston 210 to move in the damper body 10, the first piston 210 extrudes the output shafts of the damper 50 and the damper spring 40, and simultaneously extrudes the lubricating oil in the oil injection mechanism 30 through the compression rod 60 and the second piston 610.

Referring to fig. 2-6, the oil injection mechanism 30 includes an oil storage barrel 310 fixedly installed at the bottom of the buffer body 10, a second piston 610 is slidably disposed between the buffer body 10 and the side wall of the oil storage barrel 310, the bottom of the side wall of the oil storage barrel 310 is concavely disposed toward the middle, and forms an annular platform, one end of the buffer spring 40 is connected to the annular platform, a plurality of oil injection pipes 320 are communicated with the side wall of the annular platform, the plurality of oil injection pipes 320 are all L-shaped and enter the buffer spring 40 from the bottom of the buffer spring 40, an opening 70 disposed toward the buffer spring 40 is provided at the top of the side wall of the oil injection pipe 320, and a unidirectional nozzle 80 located inside the opening 70 is installed in the oil injection pipe 320.

It should be noted that, the second piston 610 is slidably disposed in the cavity by a cavity formed between the oil tank 310 and the side wall of the buffer body 10, so that when the second piston 610 moves in the cavity, a pressure is generated to press the lubricating oil into the oil spray tube 320 and spray the lubricating oil on the buffer spring 40.

Referring to fig. 6, the unidirectional spray head 80 includes a conical tube 810 fixedly installed on the inner wall of the spray pipe 320, a current-limiting arc plate 820 protruding toward the outside of the opening 70 and two elastic plates 830 protruding toward the outside of the opening 70 are fixedly connected to the top of the conical tube 810, and the two elastic plates 830 can be closed with the current-limiting arc plate 820.

The specific material of the elastic plate 830 is the prior art, and the elastic plate 830 is elastically deformed under the action of oil pressure, so that the two elastic plates 830 are opened, and thus lubricating oil is sprayed out from the oil spraying pipe 320, and the second piston 610 moves upwards for negative pressure, so that the two elastic plates 830 are closed, and further the oil spraying pipe 320 is closed, further, the flow limiting arc plate 820 can limit the lubricating oil, so that the lubricating oil flows to one side of the elastic plate 830, and in addition, the two elastic plates 830 are arranged facing the inner wall of the buffer spring 40.

Referring to fig. 5, a plurality of pipes 90 penetrate through the side wall of the annular platform, a plurality of elastic blocks 910 capable of being closed are installed in the pipes 90, an arc surface is formed after the elastic blocks are closed, and the arc surface protrudes towards the inner wall of the annular platform.

Specifically, the second piston 610 moves upward, so that the chamber between the buffer body 10 and the sidewall of the oil storage barrel 310 generates negative pressure, and then the lubricant inside the buffer body 10 enters the chamber through the pipe 90, so as to store the lubricant.

When the automobile plastic buffer is used: when vibration is generated in the running process of the automobile, the connecting rod 220 can be made to press the first piston 210 downwards to compress the buffer spring 40 and the damper 50 so as to achieve the purpose of shock absorption, meanwhile, the first piston 210 presses the second piston 610 downwards through the pressing rod 60 so that lubricating oil in the cavity enters the oil spraying pipe 320, at the moment, the pipeline 90 is closed, the lubricating effect on the buffer spring 40 is achieved through the one-way spray head 80, and when the first piston 210 is reset upwards, the one-way spray head 80 is closed, the lubricating oil in the buffer body 10 enters the cavity through the pipeline 90 so as to prepare for lubrication on the next side.

It should be noted that, specific model specifications of the buffer spring 40, the damper 50, the elastic plate 830 and the elastic block 910 need to be determined by selecting a model according to an actual specification of the device, and a specific model selection calculation method adopts the prior art, so that detailed descriptions thereof are omitted.

The above description is only an example of the present utility model and is not intended to limit the scope of the present utility model, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Claims

1. The utility model provides an automobile plastic buffer, its characterized in that, including installing buffer body (10) and sliding connection in buffer body (10) on the car connecting piece (20), install oil spout mechanism (30) in buffer body (10), be connected with buffer spring (40) between connecting piece (20) and oil spout mechanism (30), and with be connected with between buffer body (10) bottom and be located buffer spring (40) inboard attenuator (50), connecting piece (20) can press oil spout mechanism (30) to make oil spray on buffer spring (40).

2. The plastic bumper of claim 1, wherein the connecting member (20) includes a first piston (210) slidably disposed in the bumper body (10) and a connecting rod (220) connected to a top of the first piston (210), the connecting rod (220) slidably penetrates through a top of the bumper body (10), and one end of the buffer spring (40) and an output end of the damper (50) are connected to a bottom of the first piston (210).

3. The automobile plastic buffer according to claim 2, wherein the bottom of the first piston (210) is fixedly connected with a plurality of compression rods (60), the bottom of the plurality of compression rods (60) is fixedly connected with a same second piston (610) which is annularly arranged, and the second piston (610) can press oil in the oil injection mechanism (30).

4. A plastic bumper for a vehicle according to claim 3, wherein the oil injection mechanism (30) comprises an oil storage barrel (310) fixedly mounted at the bottom of the bumper body (10), the second piston (610) is slidably disposed between the bumper body (10) and the side wall of the oil storage barrel (310), the bottom of the side wall of the oil storage barrel (310) is concavely disposed toward the middle, and an annular platform is formed, one end of the buffer spring (40) is connected to the annular platform, and a plurality of oil injection pipes (320) are connected to the side wall of the annular platform.

5. The automobile plastic buffer according to claim 4, wherein the oil spraying pipes (320) are all L-shaped, and enter the buffer spring (40) from the bottom of the buffer spring (40), an opening (70) arranged towards the buffer spring (40) is formed in the top of the side wall of the oil spraying pipe (320), and a one-way spray head (80) positioned inside the opening (70) is installed in the oil spraying pipe (320).

6. The plastic bumper of claim 5, wherein the unidirectional nozzle (80) comprises a conical tube (810) fixedly mounted on the inner wall of the injection tube (320), and a current limiting arc plate (820) protruding to the outside of the opening (70) and two elastic plates (830) protruding to the outside of the opening (70) are fixedly connected to the top of the conical tube (810), and the two elastic plates (830) can be closed with the current limiting arc plate (820).

7. The automobile plastic buffer according to claim 4, wherein a plurality of pipelines (90) penetrate through the side wall of the annular platform, a plurality of elastic blocks (910) capable of being closed are installed in the pipelines (90), an arc-shaped surface is formed after the elastic blocks are closed, and the arc-shaped surface protrudes towards the inner wall of the annular platform.