Automobile threshold beam assembly

Abstract

The utility model relates to an automobile doorsill beam assembly, which relates to the technical field of automobile components, and comprises a doorsill beam and a plastic part arranged on the doorsill beam, and a protection unit is arranged on the doorsill beam; the protection unit comprises a plurality of assembly parts sequentially arranged on one side of the doorsill beam, damping base plates are slidably installed on the assembly parts in a limiting mode, T-shaped sliding grooves for the damping base plates to be slidably installed are formed in the assembly parts, a plurality of abutting protection blocks corresponding to the assembly parts in position are sequentially arranged on one side of the doorsill beam, and an inner structure assembly is arranged in the doorsill beam. According to the utility model, the impact force can be buffered and reduced, the original strength is improved, the protection effect is realized, and the noise of the vehicle can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of automobile components, and in particular to an automobile door sill beam assembly. Background Art

[0002] The car door sill beam refers to the lower metal structure of the vehicle door, which is usually located under the door and is used to support the door and connect the vehicle body. It can increase the structural strength of the door and improve the overall stability and safety of the vehicle. At the same time, it can also reduce vehicle noise and prevent water and dust from entering the vehicle. In the event of a vehicle collision, the door sill beam can also protect the passengers in the car and reduce the possibility of injury.

[0003] For example, in the existing Chinese patent with publication number CN216886941U, a vehicle threshold beam structure is disclosed, which includes a first shell and a second shell, a first connecting rod is fixedly connected to the inner surface of the first shell, a first connecting plate is fixedly connected to one end of the first connecting rod, a second connecting rod is fixedly connected to the inner surface of the second shell, a second connecting plate is fixedly connected to one end of the second connecting rod, a first spring is sleeved on the outside of the first connecting rod, and a second spring is sleeved on the outside of the second connecting rod. Through the above-mentioned prior art, when the threshold beam is hit, the impact force can be buffered and reduced, reducing the deformation and damage of the threshold beam.

[0004] However, the above prior art has the following technical defects:

[0005] The above-mentioned prior art divides the threshold beam into a first shell and a second shell. When the threshold beam is hit, the first shell and the second shell will approach each other, the first spring and the second spring will be squeezed and deformed, and the impact force will be buffered and reduced. The first shell and the second shell are reset by the elastic force of the first spring and the second spring to reduce the deformation and damage of the threshold beam. Due to the arrangement of various parts inside the first shell and the second shell, the first shell and the second shell can approach and reset each other, so that the integrity of the above-mentioned device is poor, and abnormal noise is easy to be generated when the car is bumpy. Secondly, because the threshold beam is divided into the first shell and the second shell, they can move with each other, resulting in low strength of the threshold beam in actual use, and it cannot play the due protective role.

[0006] Based on this, on the basis of the existing automobile door sill beam structure, in order to overcome the above-mentioned technical defects, there is still room for improvement. Utility Model Content

[0007] In order to buffer and reduce the impact force, improve the original strength to provide protection and reduce vehicle noise, the present application provides an automobile door sill beam assembly.

[0008] The present application provides an automobile threshold beam assembly, which adopts the following technical solution:

[0009] A vehicle threshold beam assembly comprises a threshold beam and a plastic part mounted on the threshold beam, wherein a protection unit is provided on the threshold beam;

[0010] The protection unit includes a plurality of assembly parts arranged in sequence on one side of the threshold beam, a shock-absorbing pad is slidably installed on the upper limit of the assembly part, a T-shaped slide groove for slidingly installing the shock-absorbing pad is opened on the assembly part, a plurality of protection blocks corresponding to the positions of the assembly parts are arranged in sequence on one side of the threshold beam, and an internal structure component is arranged in the threshold beam.

[0011] Preferably, the inner structure assembly includes a mounting beam, a main structure square beam and an end fixing member, the mounting beam is installed in the threshold beam, the main structure square beam limiter is arranged on the mounting beam, the main structure square beam is provided with a mounting groove adapted to the mounting beam, and the end fixing member is arranged at the end of the threshold beam.

[0012] Preferably, the inner structure assembly also includes an L-shaped rubber plate and sound-absorbing cotton arranged inside the threshold beam and wrapped around the main structural square beam.

[0013] Preferably, the end fixing member includes an assembly end block covering the end port of the threshold beam, a T-shaped support rod is provided on the side of the assembly end block facing the main square beam, and the T-shaped support rod is inserted into the main square beam, and a support rod groove for inserting the T-shaped support rod is opened on the main square beam.

[0014] Preferably, an inner round rod and a limiting cross bar are symmetrically installed on one side of the assembly end block facing the main structural square beam, and a round rod hole and a limiting hole for inserting and installing the inner round rod and the limiting cross bar are symmetrically opened at one end of the main structural square beam.

[0015] Preferably, a rubber pad is provided between the assembly end block and the main structural square beam, and the rubber pad is provided with through holes adapted to the inner round rod, the limiting cross rod and the T-shaped support rod.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. After the threshold beam is installed on the vehicle body frame through multiple assembly parts, the shock-absorbing pad and the protection block can reduce the vibration at the connection between the vehicle body frame and the threshold beam during use, and can reduce part of the impact force at the connection between the vehicle body frame and the threshold beam when the vehicle is hit.

[0018] 2. The installation of the matching beam and the main square beam can further improve the internal strength of the threshold beam, and the end fixing parts installed at the end of the threshold beam can strengthen the overall strength of the threshold beam.

[0019] 3. The L-shaped rubber plate inside the door sill beam can buffer and reduce the impact force caused by the collision, while the sound-absorbing cotton can further reduce vehicle noise and enhance the sound insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of some components of the protection unit of the utility model.

[0022] Figure 3 It is an exploded view of the assembly parts and the shock-absorbing pad of the utility model.

[0023] Figure 4 This is a cross-sectional view of the internal components of the utility model. Figure 1 .

[0024] Figure 5 It is an exploded view of the utility model's matching beam and the main structural square beam.

[0025] Figure 6 This is a cross-sectional view of the internal components of the utility model. Figure 2 .

[0026] Figure 7 It is a cross-sectional view of the end fixing member of the utility model.

[0027] Figure 8 The utility model is a kind of end fixing member explosion Figure 1 .

[0028] Fig. 9 The utility model is a kind of end fixing member explosion Figure 2 .

[0029] Explanation of the reference numerals in the accompanying drawings: 1. threshold beam; 11. plastic part; 2. protection unit; 21. assembly part; 22. shock-absorbing pad; 211. T-shaped slide groove; 23. protection block; 3. internal structure component; 31. mounting beam; 32. main structure square beam; 4. end fixing part; 321. clamping groove; 33. L-shaped rubber plate; 34. sound-absorbing cotton; 41. assembly end block; 42. T-shaped support rod; 322. support rod groove; 43. inner round rod; 44. limiting cross bar; 323. round rod hole; 324. limiting hole; 45. rubber pad; 451. through hole. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 9 This application is described in further detail.

[0031] The embodiment of the present application discloses an automobile door sill beam assembly, which can buffer and reduce impact force, improve the original strength, have a protective effect, and can also reduce vehicle noise.

[0032] Reference Figures 1 to 3 As shown, the present application provides a vehicle threshold beam assembly, including a threshold beam 1 and a plastic part 11 mounted on the threshold beam 1. The surface of the plastic part 11 is easy to clean, so as to prevent people from directly stepping on the threshold beam 1, so as to avoid damage to the exterior of the threshold beam 1 caused by long-term use. A protection unit 2 is provided on the threshold beam 1, which is used to further improve the protection effect of the threshold beam 1 on vehicle personnel.

[0033] The protection unit 2 includes three assembly parts 21 sequentially arranged on one side of the threshold beam 1, and the assembly parts 21 can facilitate the staff to install the threshold beam 1 on the vehicle body frame. A shock-absorbing pad 22 is slidably installed on the upper limit position of the assembly part 21, and a T-shaped slide groove 211 for the shock-absorbing pad 22 to be slidably installed is provided on the assembly part 21. In this embodiment, preferably, three protection blocks 23 corresponding to the position of the assembly part 21 are sequentially arranged on one side of the threshold beam 1 where the assembly part 21 is installed.

[0034] After the threshold beam 1 is mounted on the vehicle body frame by bolts or other connecting parts using the assembly part 21, on the one hand, the shock-absorbing pad 22 and the protection block 23 can reduce the vibration of the connection between the vehicle body frame and the threshold beam 1 during the daily driving of the vehicle; on the other hand, when the vehicle collides, the shock-absorbing pad 22 and the protection block 23 can reduce the impact force of a part of the connection, thereby improving the connection firmness between the threshold beam 1 and the vehicle body frame. An internal component 3 is provided in the threshold beam 1 to improve the strength of the threshold beam 1.

[0035] Reference Figure 4 and Figure 5 As shown, in order to improve the internal structural strength of the threshold beam 1, the internal structure component 3 includes a mounting beam 31, a main structural square beam 32 and an end fixing member 4; the mounting beam 31 is installed in the threshold beam 1, and the mounting beam 31 is fixedly connected to the inner wall of the threshold beam 1; the main structural square beam 32 is limitedly clamped on the mounting beam 31, and a clamping groove 321 adapted to the mounting beam 31 is opened on the main structural square beam 32, and the internal structural strength of the threshold beam 1 can be improved by installing the mounting beam 31 and the main structural square beam 32.

[0036] It should be noted that the length of the threshold beam 1 is greater than that of the main structural square beam 32, and the length of the main structural square beam 32 is greater than that of the matching beam 31. During installation, one end of the matching beam 31 abuts against the top inner end of the threshold beam 1. After the main structural square beam 32 is clamped on the matching beam 31, one end of the main structural square beam 32 and the matching end of the matching beam 31 abutting against the top inner end of the threshold beam 1 are flush. The end fixing member 4 is provided at the end of the threshold beam 1 to stabilize one end of the main structural square beam 32 facing the end of the threshold beam 1.

[0037] Reference Figure 6As shown, considering the need to buffer and reduce the impact force and reduce noise, the inner component 3 also includes an L-shaped rubber plate 33 and sound-absorbing cotton 34 arranged inside the threshold beam 1 and wrapped around the main structural square beam 32. The L-shaped rubber plate 33 and the sound-absorbing cotton 34 are located in the gap between the inner wall of the threshold beam 1 and the main structural square beam 32, and are in contact with the inner wall of the threshold beam 1 and the outer wall of the main structural square beam 32. It should be noted that the position where the L-shaped rubber plate 33 is in contact with the inner wall of the threshold beam 1 is located on the outer side of the threshold beam 1 for the force-bearing surface. When the threshold beam 1 is hit, the impact force can be transmitted to the L-shaped rubber plate 33 to achieve the effect of buffering and reducing.

[0038] At the same time, the installation of the sound-absorbing cotton 34 can reduce the noise when the vehicle is running and improve the sound insulation effect after closing the door.

[0039] Reference Figure 7 and Figure 8 As shown, since it is necessary to further increase the overall strength of the threshold beam 1 and enhance the protection of vehicle personnel, the end fixing member 4 includes an assembly end block 41 covering the end of the threshold beam 1, and the assembly end block 41 is fixedly installed at the end of the threshold beam 1 by welding or other means. A T-shaped support rod 42 is provided on the side of the assembly end block 41 facing the main structural square beam 32, and the T-shaped support rod 42 is inserted into the main structural square beam 32, and a support rod groove 322 for the T-shaped support rod 42 to be inserted is provided on the main structural square beam 32. The T-shaped support rod 42 is fixedly connected to the assembly end block 41, so that when the assembly end block 41 is fixedly installed and covered at the end of the threshold beam 1, the T-shaped support rod 42 is inserted into the main structural square beam 32 to stabilize one end of the main structural square beam 32.

[0040] Reference Figure 8 and Fig. 9 As shown, the side of the assembly end block 41 facing the main structural square beam 32 is symmetrically equipped with an inner round rod 43 and a limiting cross bar 44, and one end of the main structural square beam 32 is symmetrically provided with a round rod hole 323 and a limiting hole 324 for inserting and installing the inner round rod 43 and the limiting cross bar 44. It should be noted that the length of the inner round rod 43 and the limiting cross bar 44 is shorter than the T-shaped support rod 42.

[0041] The two groups of inner round rods 43 and the limiting cross rods 44 can further improve the limiting and stabilizing effect on the internal main structural square beam 32 after the assembly end block 41 is fixedly installed on the end of the threshold beam 1 .

[0042] Replay Figure 7 and Figure 8 As shown, a rubber pad 45 is provided between the assembly end block 41 and the main structural square beam 32 , and the rubber pad 45 is fixedly connected to the assembly end block 41 ; a through hole 451 is formed through the rubber pad 45 to match the inner round rod 43 , the limiting cross bar 44 and the T-shaped support rod 42 .

[0043] When installing the assembly end block 41, first align the T-shaped support rod 42 and insert it into the support rod groove 322 on the main structural square beam 32. Since the length of the inner round rod 43 and the limiting cross bar 44 is smaller than that of the T-shaped support rod 42, in the process of pushing the assembly end block 41 toward the main structural square beam 32, the inner round rod 43 and the limiting cross bar 44 installed on the assembly end block 41 can be inserted into the round rod hole 323 and the limiting hole 324. Then continue to push the assembly end block 41 until the rubber pad 45 contacts one end of the main structural square beam 32. Finally, the assembly end block 41 is fixedly installed at the end of the threshold beam 1 by welding or other methods. At this time, the overall strength of the threshold beam 1 is further improved due to the installation of the matching beam 31, the main structural square beam 32 and the end fixed member 4.

[0044] When the door sill beam 1 is hit, the impact force acts on the outside of the door sill beam 1 and can be squeezed and transmitted to the L-shaped rubber plate 33. The L-shaped rubber plate 33 can disperse part of the impact force, and then transmit it to the main structural square beam 32 that contacts and fits with the L-shaped rubber plate 33. After being dispersed again, the remaining part of the force is transmitted to the mounting beam 31 and the rubber pad 45. Therefore, the effect of buffering and reducing the impact force can be achieved.

[0045] The implementation principle of this embodiment is:

[0046] (1) Installation protection: The threshold beam 1 is installed on the vehicle body frame by bolts and other connecting parts. The shock-absorbing pad 22 and the protection block 23 can reduce the vibration at the connection between the vehicle body frame and the threshold beam 1, and at the same time can reduce the impact force of a part of the connection, thereby improving the connection firmness between the threshold beam 1 and the vehicle body frame.

[0047] (2) Strength improvement: First, the main structural square beam 32 is clamped on the matching beam 31, so that one end of the main structural square beam 32 and the matching beam 31 are flush with the inner top end of the threshold beam 1; then, the T-shaped support rod 42 is inserted into the support rod groove 322, and the assembly end block 41 is pushed so that the inner round rod 43 and the limiting cross rod 44 are inserted into the round rod hole 323 and the limiting hole 324, and the assembly end block 41 is continued to be pushed until the rubber pad 45 is in contact with the main structural square beam 32, and finally, the assembly end block 41 is fixedly installed at the end of the threshold beam 1 by welding or other methods.

[0048] (3) Buffering and reduction: When the threshold beam 1 is hit, the impact force is dispersed on the L-shaped rubber plate 33 through the threshold beam 1, and then transmitted to the main structural square beam 32 for further dispersion, and the remaining force is transmitted to the mounting beam 31 and the rubber pad 45. Thus, the effect of buffering and reducing the impact force is achieved.

[0049] (4) Noise reduction: The provision of the L-shaped rubber plate 33 and the sound-absorbing cotton 34 can reduce the noise when the vehicle is running, thereby improving the sound insulation effect after the door is closed.

[0050] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A vehicle threshold beam assembly, comprising a threshold beam (1) and a plastic part (11) mounted on the threshold beam (1), characterized in that: The threshold beam (1) is provided with a protection unit (2); The protection unit (2) comprises a plurality of assembly parts (21) arranged in sequence on one side of the threshold beam (1); a shock-absorbing pad (22) is slidably mounted on the assembly part (21) at the upper limit position; a T-shaped slide groove (211) is provided on the assembly part (21) for the shock-absorbing pad (22) to be slidably mounted; a plurality of protection blocks (23) corresponding to the positions of the assembly parts (21) are arranged in sequence on one side of the threshold beam (1); and an internal structure component (3) is provided in the threshold beam (1).

2. The automobile door sill beam assembly according to claim 1, characterized in that: The inner structure component (3) comprises a mounting beam (31), a main structure square beam (32) and an end fixing member (4); the mounting beam (31) is installed in the threshold beam (1); the main structure square beam (32) is limitedly clamped on the mounting beam (31); a clamping groove (321) adapted to the mounting beam (31) is provided on the main structure square beam (32); and the end fixing member (4) is arranged at the end of the threshold beam (1).

3. The automobile door sill beam assembly according to claim 2, characterized in that: The inner structure component (3) also includes an L-shaped rubber plate (33) and sound-absorbing cotton (34) which are arranged inside the threshold beam (1) and wrapped around the main structure square beam (32).

4. The automobile door sill beam assembly according to claim 2, characterized in that: The end fixing member (4) comprises an assembly end block (41) covering the end of the threshold beam (1); a T-shaped support rod (42) is provided on the side of the assembly end block (41) facing the main structural square beam (32); the T-shaped support rod (42) is inserted into the main structural square beam (32); and a support rod groove (322) for inserting the T-shaped support rod (42) is provided on the main structural square beam (32).

5. The automobile sill beam assembly according to claim 4, characterized in that: An inner round rod (43) and a limiting cross rod (44) are symmetrically mounted on one side of the assembly end block (41) facing the main structural square beam (32), and a round rod hole (323) and a limiting hole (324) for inserting and mounting the inner round rod (43) and the limiting cross rod (44) are symmetrically opened at one end of the main structural square beam (32).

6. The automobile door sill beam assembly according to claim 5, characterized in that: A rubber pad (45) is also provided between the assembly end block (41) and the main structural square beam (32), and a through hole (451) is provided through the rubber pad (45) to match the inner round rod (43), the limiting cross rod (44) and the T-shaped support rod (42).

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