Lightweight glue injection bumper of automobile

Abstract

The utility model discloses an automobile lightweight glue injection bumper, and relates to the technical field of automobile lightweight. The glue injection bar comprises a bar body provided with a first glue containing cavity, a discharging hole and a feeding hole are formed in the top face and the bottom face of the bar body respectively, and auxiliary glue injection mechanisms are arranged at the positions, located at the feeding hole and the discharging hole, of the upper face and the lower face of the first glue containing cavity respectively. The auxiliary glue injection mechanism is provided with an auxiliary pipe which abuts against a compression spring arranged in the first glue containing cavity, and the auxiliary pipe is arranged in the discharging hole or the feeding hole in a sliding mode. The purposes that good elastic filler filling is conducted on the cavity bumper, and it is guaranteed that the cavity of the bumper can be filled with the filler are achieved.

Description

Technical Field

[0001] This utility model relates to the field of automotive lightweighting technology, specifically, to a lightweight automotive injection-molded bumper. Background Technology

[0002] Automotive lightweighting refers to reducing the vehicle's curb weight as much as possible while ensuring its strength and safety performance, in order to improve fuel efficiency, reduce emissions, enhance safety, and improve handling performance.

[0003] Car bumpers are an important component of vehicles, primarily located at the front and rear. Their function is to absorb and mitigate external impact forces, protecting the vehicle's main structure and passenger safety. In low-speed collisions, bumpers can effectively reduce vehicle damage and lower repair costs, and to some extent protect pedestrians and other vehicles, reducing injuries during accidents.

[0004] Filling the hollow bumper with thermosetting elastic filler can reduce the overall weight of the bumper and achieve lightweighting while ensuring that the bumper still has a certain mechanical strength.

[0005] However, for hollow bumpers, ensuring that the elastic filler can completely fill the cavity before curing is a prerequisite for ensuring that the lightweight bumper has good mechanical properties. Utility Model Content

[0006] The purpose of this invention is to provide a lightweight injection-molded bumper for automobiles, so as to achieve good elastic filling of the cavity bumper and ensure that the filler can fill the cavity of the bumper.

[0007] To achieve the above objectives, the present invention employs the following technical means:

[0008] A lightweight automotive bumper with glue injection capability includes a bumper body with a first glue-containing cavity. The top and bottom surfaces of the bumper body are respectively provided with a discharge hole and a feed hole. The upper and lower surfaces of the first glue-containing cavity are respectively provided with auxiliary glue injection mechanisms at the positions of the feed hole and the discharge hole.

[0009] The auxiliary dispensing mechanism is equipped with an auxiliary tube that is abutted by a compression spring located in the first dispensing cavity. The auxiliary tube is slidably disposed in the discharge hole or the feed hole.

[0010] Furthermore, a first baffle and a second baffle are threadedly installed in the feed hole and the discharge hole, respectively, and the first baffle and the second baffle abut against the end of the auxiliary tube when installed.

[0011] Furthermore, the second cover includes a first cover body threadedly installed in the discharge hole. The first cover body has a coaxially constructed air leakage hole. The inner wall of the top of the air leakage hole has a stepped mechanism. The inner wall of the stepped mechanism is threadedly installed with a second cover body or a residual material collection bottle. The top of the residual material collection bottle in the installed state has a vent hole.

[0012] Furthermore, the top surface of the first cover has a first slot, the top surface of the second cover has a second slot, and the thread in the discharge hole is arranged in the opposite direction to the thread on the inner wall of the step mechanism.

[0013] Furthermore, the auxiliary glue injection mechanism includes a positioning cylinder installed on the inner wall of the lever body. The positioning cylinder is coaxially arranged with the feed hole or the discharge hole. A first receiving ring is constructed on the inner wall of the end of the positioning cylinder away from the lever body. The auxiliary tube is coaxially arranged inside the positioning cylinder. A second receiving ring is constructed on the outer wall of the end of the auxiliary tube away from the inner wall of the lever body. The compression spring is disposed between the first receiving ring and the second receiving ring.

[0014] Furthermore, the sidewall of the positioning cylinder is constructed with several connecting holes around its axis.

[0015] This utility model has the following beneficial effects during use:

[0016] During filler filling, auxiliary tubes extend from both the inlet and outlet ports. The auxiliary tube in the inlet port is used to purge the filler, allowing gas in the first adhesive cavity to escape smoothly through the auxiliary tube in the outlet port. After filler has exited from the upper auxiliary tube, the auxiliary tube is pressed back into the inlet and outlet ports, and then the inlet and outlet ports are sealed to complete the filler filling. This ensures that the first adhesive cavity is completely filled with filler, guaranteeing that the lightweight bumper possesses excellent mechanical cushioning performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA.

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 5 This is a schematic diagram of the assembly structure of the residue collection bottle in one embodiment.

[0022] Among them, 110-first glue-containing cavity, 120-bar body, 130-discharge hole, 140-feed hole, 150-compression spring, 160-auxiliary tube, 170-first cover, 180-second cover, 181-first cover body, 182-second cover body, 190-residue collection bottle, 1100-positioning cylinder, 1200-connecting hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Please refer to Figures 1 to 5 As shown, a lightweight automotive bumper with glue injection includes a bumper body 120 with a first glue-containing cavity 110. The top and bottom surfaces of the bumper body 120 are respectively provided with a discharge hole 130 and a feed hole 140. The upper and lower surfaces of the first glue-containing cavity 110 are respectively provided with auxiliary glue injection mechanisms at the positions of the feed hole 140 and the discharge hole 130.

[0030] The auxiliary glue injection mechanism is constructed with an auxiliary tube 160 that is abutted by a compression spring 150 located in the first glue cavity 110. The auxiliary tube 160 is slidably disposed in the discharge hole 130 or the feed hole 140.

[0031] In this way, during filler filling, the auxiliary tube 160 extends out of the inlet hole 140 and the outlet hole 130 respectively. The auxiliary tube 160 in the inlet hole 140 is used to bulge in the filler, and the gas in the first adhesive cavity 110 can be smoothly discharged from the auxiliary tube 160 in the outlet hole 130. After the filler is discharged from the upper auxiliary tube 160, the auxiliary tube 160 is pressed back into the inlet hole 140 and the outlet hole 130 respectively, and then the inlet hole 140 and the outlet hole 130 are sealed to complete the filler filling. This ensures that the first adhesive cavity 110 can be completely filled with filler, ensuring that the lightweight bumper has good mechanical cushioning performance.

[0032] Furthermore, a first baffle 170 and a second baffle 180 are threadedly installed in the feed hole 140 and the discharge hole 130, respectively. When installed, the first baffle 170 and the second baffle 180 abut against the end of the auxiliary tube 160.

[0033] The first cover 170 and the second cover 180 are used to seal the feed hole 140 and the discharge hole 130 respectively after filling is completed.

[0034] Furthermore, the second cover 180 includes a first cover 181 threadedly installed in the discharge hole 130. The first cover 181 has a coaxially constructed air leakage hole. The inner wall of the top of the air leakage hole has a stepped mechanism. The inner wall of the stepped mechanism is threadedly installed with a second cover 182 or a waste material collection bottle 190. The top of the waste material collection bottle 190 in the installed state has a vent hole.

[0035] Thus, when installing the second cover 180, the first cover 181 is installed first, and the auxiliary tube 160 is pushed into the first adhesive cavity 110 using the first cover 181. When installing the first cover 181, the residual material collection bottle 190 is installed in the vent hole. In this way, the filler squeezed out during the process of the auxiliary tube 160 entering the first adhesive cavity 110 can be collected in the residual material collection bottle 190. After the first cover 181 is installed, the residual material collection bottle 190 is removed, and then the second cover 182 is installed into the vent hole. This avoids the large amount of filler in the first adhesive cavity 110 leaking out due to the installation of the auxiliary tube 160 during the process of sealing the discharge hole 130, which would cause pollution to the outer wall of the bumper.

[0036] Furthermore, to facilitate the insertion of the second cover 180, the top surface of the first cover 181 is provided with a first slot, the top surface of the second cover 182 is provided with a second slot, and the thread inside the discharge hole 130 is set in the opposite direction to the thread of the inner wall of the step mechanism.

[0037] Furthermore, the auxiliary glue injection mechanism includes a positioning cylinder 1100 installed on the inner wall of the lever body 120. The positioning cylinder 1100 is coaxially arranged with the feed hole 140 or the discharge hole 130. A first receiving ring is constructed on the inner wall of the end of the positioning cylinder 1100 away from the lever body 120. The auxiliary tube 160 is coaxially arranged inside the positioning cylinder 1100. A second receiving ring is constructed on the outer wall of the end of the auxiliary tube 160 away from the inner wall of the lever body 120. The compression spring 150 is disposed between the first receiving ring and the second receiving ring.

[0038] Meanwhile, the sidewall of the positioning cylinder 1100 is provided with several connecting holes 1200 around its axis.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lightweight automotive bumper with injection molding, characterized in that, The device includes a lever body (120) having a first glue-containing cavity (110). The top and bottom surfaces of the lever body (120) are respectively provided with a discharge hole (130) and a feed hole (140). The upper and lower surfaces of the first glue-containing cavity (110) are respectively provided with auxiliary glue-injection mechanisms at the positions of the feed hole (140) and the discharge hole (130). The auxiliary dispensing mechanism is constructed with an auxiliary tube (160) that abuts against a compression spring (150) located in the first dispensing cavity (110). The auxiliary tube (160) is slidably disposed in the discharge hole (130) or the feed hole (140).

2. The lightweight automotive bumper with injection molding according to claim 1, characterized in that, The feed hole (140) and the discharge hole (130) are respectively threaded with a first cover (170) and a second cover (180). When installed, the first cover (170) and the second cover (180) abut against the end of the auxiliary tube (160).

3. The lightweight automotive injection-molded bumper according to claim 2, characterized in that, The second cover (180) includes a first cover (181) threadedly installed in the discharge hole (130). The first cover (181) has a coaxially constructed air leakage hole. The inner wall of the top of the air leakage hole has a stepped mechanism. The inner wall of the stepped mechanism is threadedly installed with a second cover (182) or a waste material collection bottle (190). The top of the waste material collection bottle (190) in the installed state has a vent hole.

4. A lightweight automotive bumper with injection molding according to claim 3, characterized in that, The top surface of the first cover (181) has a first slot, and the top surface of the second cover (182) has a second slot. The thread in the discharge hole (130) is arranged in the opposite direction to the thread of the inner wall of the step mechanism.

5. A lightweight automotive bumper with injection molding according to claim 1, characterized in that, The auxiliary glue injection mechanism includes a positioning cylinder (1100) installed on the inner wall of the lever body (120). The positioning cylinder (1100) is coaxially arranged with the feed hole (140) or the discharge hole (130). The inner wall of the positioning cylinder (1100) away from the lever body (120) is constructed with a first receiving ring. The auxiliary tube (160) is coaxially arranged inside the positioning cylinder (1100). The outer wall of the auxiliary tube (160) away from the inner wall of the lever body (120) is constructed with a second receiving ring. The compression spring (150) is arranged between the first receiving ring and the second receiving ring.

6. A lightweight automotive bumper with injection molding according to claim 5, characterized in that, The sidewall of the positioning cylinder (1100) is provided with several connecting holes (1200) around its axis.

Images