Energy absorbing foam filling device based on bumper and crash beam

Abstract

The utility model discloses an energy-absorbing foam filling device based on bumper and crash beam, and relates to the field of energy-absorbing foam filling equipment, which comprises a foaming gun and a protection mechanism, the front end of the foaming gun is provided with a barrel, the front end of the barrel is provided with a gun head, and the protection mechanism is used for protecting the outside of the gun head. The energy-absorbing foam filling device based on bumper and crash beam can make the protective sleeve move to the position of the gun head to wrap the gun head when the foaming gun is not used, which can avoid physical damage such as collision and scratching of the gun head during transportation and storage, prevent the gun head structure from being damaged, guarantee the shape and size precision of the gun head, ensure that the gun head can normally extrude energy-absorbing foam during subsequent use, maintain the normal working performance of the filling device, and prevent dust, sundries and the like from adhering to the surface of the gun head. If the gun head is contaminated, the gun head may be blocked.

Description

Technical Field

[0001] This utility model belongs to the technical field of energy-absorbing foam filling equipment, specifically an energy-absorbing foam filling device based on bumpers and anti-collision beams. Background Technology

[0002] In the field of automotive safety design, energy-absorbing foam based on bumpers and anti-collision beams plays a crucial role. Energy-absorbing foam absorbs and disperses impact energy during a collision, reducing the impact force on the vehicle body and occupants, thus improving the vehicle's passive safety. However, in practical applications, the devices used to fill energy-absorbing foam have some problems. For example, the nozzle of the device is susceptible to impacts, scratches, and contamination when not in use, leading to damage or blockage of the nozzle, affecting the filling effect of the energy-absorbing foam and the lifespan of the device.

[0003] To address the aforementioned issues, existing technologies employ protective measures such as installing simple protective covers at the nozzle tip. These covers can prevent the nozzle tip from impacts and contamination to some extent; however, most existing covers are fixedly installed, requiring manual removal and installation, which is cumbersome and prone to loss. Furthermore, fixed protective covers are difficult to adjust flexibly according to different usage scenarios and operating conditions, failing to provide timely and effective protection for the nozzle tip when the device is idle. This contrasts sharply with the problems solved by protective mechanisms that safeguard the integrity of the nozzle tip.

[0004] Therefore, in order to address the existing shortcomings, we conducted research and improvements and proposed an energy-absorbing foam filling device based on bumpers and anti-collision beams. Utility Model Content

[0005] The purpose of this invention is to provide an energy-absorbing foam filling device based on bumpers and anti-collision beams to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an energy-absorbing foam filling device based on a bumper and anti-collision beam, comprising: a foam gun and a protective mechanism, wherein the front end of the foam gun is provided with a gun barrel, and the front end of the gun barrel is provided with a gun head;

[0007] The protective mechanism is used to protect the exterior of the gun head.

[0008] Furthermore, the protective mechanism includes a rotating shaft, a one-way rack, a gear, a guide rod, a retaining block, a protective sleeve, and a sleeve shaft. A rotating shaft is provided on one side of the front of the foam gun. A one-way rack is provided on the outside of the rotating shaft. A gear is provided at the front end of the upper end of the one-way rack. A guide rod is transversely provided through the inner side of the gear. A sleeve shaft is connected to one end of the guide rod. A sleeve shaft is sleeved on the outside of the gun barrel. A retaining block is provided at the other end of the guide rod. A protective sleeve is provided at the end of the retaining block near the gun head.

[0009] Furthermore, the gear rotates outside one end of the guide rod.

[0010] Furthermore, the sleeve can move horizontally outside the barrel.

[0011] Furthermore, the sawtooth mechanism on the outside of the gear meshes with the sawtooth mechanism on the surface of the one-way rack.

[0012] Furthermore, the rotating shaft and the one-way rack can rotate.

[0013] Furthermore, the length of the unidirectional rack is equal to the length of the barrel.

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

[0015] 1. This utility model has a protective mechanism that allows the protective cover to move to the gun head and wrap it when the foam gun is not in use. This can prevent the gun head from being damaged by collisions, scratches and other physical damage during transportation and storage, prevent damage to the gun head structure, ensure the shape and size accuracy of the gun head, ensure that the gun head can normally extrude energy-absorbing foam when used later, and maintain the normal working performance of the filling device.

[0016] 2. This utility model can prevent external dust, debris and other contaminants from adhering to the surface of the gun head through the protective mechanism. If the gun head is contaminated, it may cause blockage, affecting the extrusion effect and filling quality of the energy-absorbing foam. The protective sleeve can prevent such situations from occurring, reduce equipment failure and maintenance costs caused by gun head contamination, and ensure the smooth progress of the filling operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the energy-absorbing foam filling device based on the bumper and anti-collision beam of this utility model;

[0018] Figure 2 This is a partial structural diagram (including components such as the sleeve shaft) of the energy-absorbing foam filling device based on the bumper and anti-collision beam of this utility model;

[0019] Figure 3 This is a partially enlarged structural diagram (at point a) of the energy-absorbing foam filling device based on the bumper and anti-collision beam of this utility model;

[0020] Figure 4 This is a schematic diagram of the protective mechanism structure of the energy-absorbing foam filling device based on the bumper and anti-collision beam of this utility model.

[0021] In the diagram: 1. Foam gun; 2. Rotating shaft; 3. One-way rack; 4. Gear; 5. Guide rod; 6. Retaining block; 7. Protective sleeve; 8. Gun head; 9. Gun barrel; 10. Sleeve shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] like Figures 1-4 As shown, the energy-absorbing foam filling device based on the bumper and anti-collision beam includes: a foam gun 1 and a protective mechanism. The front end of the foam gun 1 is provided with a gun barrel 9, and the front end of the gun barrel 9 is provided with a gun head 8.

[0024] The protective mechanism is used to protect the exterior of the gun head 8.

[0025] The protective mechanism includes a rotating shaft 2, a one-way rack 3, a gear 4, a guide rod 5, a retaining block 6, a protective sleeve 7, and a sleeve shaft 10. A rotating shaft 2 is provided on one side of the front of the foam gun 1. A one-way rack 3 is provided on the outside of the rotating shaft 2. A gear 4 is provided at the front end of the upper end of the one-way rack 3. A guide rod 5 is provided horizontally through the inside of the gear 4. One end of the guide rod 5 is connected to the sleeve shaft 10. The sleeve shaft 10 is sleeved on the outside of the gun barrel 9. A retaining block 6 is provided at the other end of the guide rod 5. A protective sleeve 7 is provided at the end of the retaining block 6 near the gun head 8.

[0026] The remaining improvements include automated control of the protective mechanisms to enhance their ease of use and accuracy.

[0027] Based on the original protective mechanism, a sensor and control system are added. A position sensor is installed on the foam gun 1 to detect the usage status of the foam gun. When the foam gun is idle, the position sensor transmits a signal to the control system. After receiving the signal, the control system drives the motor to rotate the shaft 2. The rotation of the shaft 2 causes the one-way rack 3 to move. Through the meshing of the gear 4 with the one-way rack 3, the guide rod 5 moves. The movement of the guide rod 5 causes the sleeve shaft 10 to slide horizontally on the gun barrel 9, thereby pushing the retaining block 6 and the protective sleeve 7 to move towards the gun head 8 until the protective sleeve 7 completely covers the gun head 8.

[0028] When it is necessary to use a foam gun for energy-absorbing foam filling, the operator starts the operation switch of the foam gun. At this time, the position sensor detects the change in the state of the foam gun and sends a signal to the control system. The control system controls the motor to reverse, causing the rotating shaft 2 to rotate in the opposite direction, which drives the one-way rack 3 to move in the opposite direction. The gear 4 rotates in the opposite direction, which drives the sleeve shaft 10 to slide in the opposite direction through the guide rod 5. The retaining block 6 and the protective sleeve 7 move away from the gun head 8, and the gun head 8 is exposed for filling operations.

[0029] To ensure the stable operation of the protective mechanism, a limit switch is installed on the guide rod 5. When the sleeve shaft 10 moves to the limit position, the limit switch is triggered, and the control system stops the rotation of the motor to prevent the sleeve shaft 10 from being damaged due to excessive movement. At the same time, a buffer material, such as a rubber pad, is installed inside the protective sleeve 7. When the protective sleeve 7 covers the gun head 8, it can further reduce the impact of collisions on the gun head 8.

[0030] The remaining improvements include quick replacement and maintenance of protective mechanisms to increase equipment efficiency and reduce maintenance costs.

[0031] The various components of the protective mechanism are modularly designed. The rotating shaft 2, one-way rack 3, gear 4, guide rod 5, retaining block 6, protective sleeve 7, and sleeve shaft 10 are all designed as independent modules and connected using standardized interfaces. For example, the sleeve shaft 10 is connected to the barrel 9 using a quick-release clamp. When the sleeve shaft 10 is worn or malfunctions, the operator can quickly remove the sleeve shaft 10 from the barrel 9 by loosening the clamp and replace it with a new sleeve shaft 10 without disassembling the entire protective mechanism.

[0032] An adjustable structure is designed for the meshing part of gear 4 and one-way rack 3. An adjusting bolt is set on the guide rod 5. The position of gear 4 can be finely adjusted by adjusting the bolt to ensure good meshing between gear 4 and one-way rack 3. When there is a deviation in the meshing between gear 4 and one-way rack 3, the operator can adjust it by adjusting the bolt to avoid the protective mechanism from malfunctioning due to poor meshing.

[0033] The protective sleeve 7 is designed with a detachable structure. The protective sleeve 7 is connected to the retaining block 6 by a buckle. When the protective sleeve 7 is contaminated or damaged, it can be easily removed from the retaining block 6 for cleaning or replacement. At the same time, lubricating oil filling ports are set at key parts of the protective mechanism, such as the connection between the rotating shaft 2 and the guide rod 5, so as to facilitate regular lubrication and maintenance of the protective mechanism and extend its service life.

[0034] Working principle: When using this energy-absorbing foam filling device based on bumper and anti-collision beam, the foam gun 1 is the core execution component of the entire device for filling energy-absorbing foam. The foam gun 1 has a specific fluid channel and structure inside for storing and transporting foaming material. When operating the foam gun 1, the foaming material is pushed from the storage area of ​​the foam gun 1 through the internal pipe to the gun barrel 9. When the foaming material flows through the gun barrel 9, it begins to undergo physical or chemical reactions under specific pressure and flow rate conditions, gradually producing foam. The energy-absorbing foam that has undergone reaction and preliminary shaping is squeezed out from the gun head 8 to fill the space between the bumper and anti-collision beam to achieve the function of energy absorption and buffering.

[0035] The rotating shaft 2 and the one-way rack 3 on one side of the front of the foam gun 1 can rotate and move. In the initial state, the one-way rack 3 is stationary or at a specific angle relative to the rotating shaft 2. There is a certain installation angle and positional relationship between the one-way rack 3 and the foam gun body, which lays the foundation for subsequent motion transmission.

[0036] The gear 4 is provided at the upper front end of the one-way rack 3. Its external sawtooth mechanism meshes with the sawtooth mechanism on the surface of the one-way rack 3. When the foam gun is operated or subjected to a specific external force, such as positional movement during installation, disassembly or use, the one-way rack 3 will rotate under the support of the rotating shaft 2. Due to the meshing relationship between the gear 4 and the one-way rack 3, the rotation of the one-way rack 3 will drive the gear 4 to rotate outside one end of the guide rod 5.

[0037] A guide rod 5 is horizontally inserted through the inner side of the gear 4. One end of the guide rod 5 is connected to the sleeve shaft 10. The sleeve shaft 10 is sleeved on the outside of the barrel 9 and can move horizontally outside of it. When the gear 4 rotates, the rotational motion is converted into linear motion through the guide rod 5, which drives the sleeve shaft 10 to move horizontally outside the barrel 9.

[0038] A retaining block 6 is provided at the other end of the guide rod 5. A protective sleeve 7 is provided at the end of the retaining block 6 near the gun head 8. As the sleeve shaft 10 moves horizontally on the gun barrel 9, the guide rod 5 will drive the retaining block 6 to move synchronously, thereby making the protective sleeve 7 move closer to or away from the gun head 8. When the foam gun is not in use or during transportation and storage, the protective sleeve 7 can move to the position of the gun head 8 under the action of the protective mechanism to wrap and protect the gun head 8 and prevent the gun head from being damaged by collision, contamination or other damage. When it is necessary to use the foam gun for energy-absorbing foam filling operations, the protective mechanism moves in the opposite direction, making the protective sleeve 7 move away from the gun head 8 and expose the gun head so that the foam can be squeezed out.

[0039] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An energy-absorbing foam filling device based on a bumper and anti-collision beam, comprising: A foam gun (1) and a protective mechanism, characterized in that the front end of the foam gun (1) is provided with a gun barrel (9), and the front end of the gun barrel (9) is provided with a gun head (8). The protective mechanism is used to protect the exterior of the gun head (8); The protective mechanism includes a rotating shaft (2), a one-way rack (3), a gear (4), a guide rod (5), a retaining block (6), a protective sleeve (7), and a sleeve shaft (10). A rotating shaft (2) is provided on one side of the front of the foam gun (1). A one-way rack (3) is provided on the outside of the rotating shaft (2). A gear (4) is provided at the front end of the upper end of the one-way rack (3). A guide rod (5) is provided horizontally through the inner side of the gear (4). A sleeve shaft (10) is connected to one end of the guide rod (5). A sleeve shaft (10) is sleeved on the outside of the gun barrel (9). A retaining block (6) is provided at the other end of the guide rod (5). A protective sleeve (7) is provided at the end of the retaining block (6) near the gun head (8).

2. The energy-absorbing foam filling device based on bumper and anti-collision beam according to claim 1, characterized in that, The gear (4) rotates outside one end of the guide rod (5).

3. The energy-absorbing foam filling device based on bumper and anti-collision beam according to claim 1, characterized in that, The sleeve (10) can move horizontally outside the barrel (9).

4. The energy-absorbing foam filling device based on bumper and anti-collision beam according to claim 1, characterized in that, The sawtooth mechanism on the outside of the gear (4) meshes with the sawtooth mechanism on the surface of the one-way rack (3).

5. The energy-absorbing foam filling device based on a bumper and anti-collision beam according to claim 1, characterized in that, The rotating shaft (2) and the one-way rack (3) can rotate.

6. The energy-absorbing foam filling device based on bumper and anti-collision beam according to claim 1, characterized in that, The length of the one-way rack (3) is equal to the length of the barrel (9).

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