Buffer blocks and vehicles

By setting threads with opposite directions on the base and adjusting rod of the buffer block, the problem of the existing buffer block's inability to self-adjust is solved, realizing the flexible installation and effective fit of the buffer block on the vehicle body, and meeting the gap surface difference requirements between the vehicle body and the tailgate.

CN224282322UActive Publication Date: 2026-05-26XIAOMI EV TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAOMI EV TECH CO LTD
Filing Date
2025-04-21
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing buffer block has a simple structure and cannot be adaptively adjusted, making it difficult to meet the requirements for the gap and surface difference between the vehicle body and the tailgate, resulting in installation difficulties.

Method used

A buffer block is designed with a base and an adjusting rod having oppositely rotating forward and reverse threads. The adjusting rod is rotated in either the forward or reverse direction to connect with the mating threads, allowing for flexible installation and adaptive adjustment of the adjusting rod on the vehicle body.

Benefits of technology

It enables flexible installation and adaptive adjustment of the buffer block on the vehicle body, ensuring effective fit between the tailgate and the vehicle body, and improving the flexibility and reliability of installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This disclosure relates to a buffer block and a vehicle. The buffer block is for mating with a vehicle body and a tailgate, and includes a base and an adjusting rod. The base has a mating cavity. One of the mating cavity and the adjusting rod is provided with a mating thread, and the other is provided with a first mating portion and a second mating portion. The first mating portion is provided with a forward thread, and the second mating portion is provided with a reverse thread. One of the forward thread and the reverse thread is used for threaded connection with the mating thread. Through the above technical solution, the buffer block provided by this disclosure is easy to install on a vehicle.
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Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and more specifically, to a buffer block and a vehicle. Background Technology

[0002] In related technologies, buffer blocks are usually placed between the vehicle body and the tailgate to provide cushioning for the tailgate. However, due to the influence of manufacturing precision on the vehicle body and the tailgate, the fit between the two often does not meet the design requirements. Existing buffer blocks have a simple structure and do not have adaptive adjustment performance, making it difficult to meet the gap surface difference fit requirements between the vehicle body and the tailgate during installation. Utility Model Content

[0003] The purpose of this disclosure is to provide a buffer block and a vehicle that facilitates installation on the vehicle.

[0004] To achieve the above objectives, this disclosure provides a buffer block for cooperating with a vehicle body and a tailgate, including a base and an adjusting rod. The base has a mating cavity, and one of the mating cavity and the adjusting rod is provided with a mating thread. The other is provided with a first mating portion and a second mating portion. The first mating portion is provided with a forward thread, and the second mating portion is provided with a reverse thread. One of the forward thread and the reverse thread is used for threaded connection with the mating thread.

[0005] Optionally, the pitches of the forward thread and the reverse thread are different.

[0006] Optionally, the pitch of the forward thread is 0.5mm to 1mm, and / or the pitch of the reverse thread is 0.5mm to 1mm.

[0007] Optionally, the mating cavity is provided with at least one protrusion, the protrusion having the mating thread, and the adjusting rod is provided with at least one notch for selectively accommodating the corresponding protrusion.

[0008] Optionally, a limiting rib is provided between the first mating part and the second mating part, the limiting rib being used to abut against the protrusion.

[0009] Optionally, the protrusion has a first portion and a second portion, and the mating thread includes a forward thread portion formed on the first portion and a reverse thread portion formed on the second portion; the forward thread is used for threaded connection with the forward thread portion, and the reverse thread is used for threaded connection with the reverse thread portion.

[0010] Optionally, the number of protrusions is two, the two protrusions are spaced apart and opposite to each other, and the adjusting rod is provided with two sets of first mating parts and second mating parts.

[0011] Optionally, the mating thread configuration is a double-threaded thread.

[0012] Optionally, the adjusting rod is provided with a mating cap, which is inserted into the mating cavity and has a scale, which is partially located on the outside of the mating cavity.

[0013] Based on the above technical solution, this disclosure also provides a vehicle including the aforementioned buffer block.

[0014] Through the above technical solution, in the buffer block provided in this disclosure, one of the base and the adjusting rod is provided with a mating thread, and the other is provided with a forward thread and a reverse thread with opposite directions of rotation. In this way, when the adjusting rod is inserted into the mating cavity, rotating the adjusting rod in the forward direction so that the forward thread engages with the mating thread, or rotating the adjusting rod in the reverse direction so that the reverse thread engages with the mating thread, can achieve the fixation between the adjusting rod and the base, thereby facilitating the installation of the buffer block on the vehicle body. Specifically, when the buffer block provided in this disclosure is applied to the automotive field, during vehicle assembly, the base can first be fixed to the vehicle body, the adjusting rod is inserted into the mating cavity, the tailgate is closed, and the adjusting rod moves into the mating cavity under the pressure of the tailgate until the tailgate is closed. At this time, the adjusting rod contacts the tailgate, and the contact state can effectively limit the closing of the tailgate. Depending on the different mating dimensions of the vehicle body and the tailgate, the distance the adjusting rod moves into the mating cavity is also different, thereby achieving the purpose of adaptive size adjustment of the buffer block. Finally, the tailgate is opened, and the adjusting rod is rotated forward or backward to fix the adjusting rod to the base, i.e., the vehicle body, thus realizing the installation of the buffer block on the vehicle body.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the buffer block provided in the embodiments of this disclosure;

[0018] Figure 2 yes Figure 1 A sectional view along the AA direction;

[0019] Figure 3 This is an exploded view of the buffer block provided in an embodiment of this disclosure;

[0020] Figure 4 This is a schematic diagram of the structure of the mating thread and the adjusting rod provided in the first embodiment of this disclosure;

[0021] Figure 5 This is a schematic diagram of the structure of the mating thread and the adjusting rod provided in the second embodiment of this disclosure;

[0022] Figure 6 This is a schematic diagram of the structure of the mating thread and the adjusting rod provided in the third embodiment of this disclosure;

[0023] Figure 7 This is a schematic diagram of the structure of the base provided in an embodiment of this disclosure;

[0024] Figure 8 This is a cross-sectional schematic diagram of the base provided in an embodiment of this disclosure.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Base; 11-Mating cavity; 12-Mating thread; 13-Protrusion; 131-First part; 132-Second part; 2-Adjusting rod; 21-First mating part; 22-Second mating part; 23-Notch part; 24-Limiting rib; 3-Mating cap; 31-Scale. Detailed Implementation

[0027] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0028] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" generally refer to "inner" and "outer" relative to the contour of the corresponding component itself. Terms such as "first" and "second" are used to distinguish one element from another and do not imply sequence or importance. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0029] Based on the specific embodiments provided in this disclosure, refer to Figures 1 to 8 As shown, a buffer block is provided, including a base 1 and an adjusting rod 2. The base 1 has a mating cavity 11. One of the mating cavity 11 and the adjusting rod 2 is provided with a mating thread 12, and the other is provided with a first mating part 21 and a second mating part 22. The first mating part 21 is provided with a forward thread, and the second mating part 22 is provided with a reverse thread. One of the forward thread and the reverse thread is used to be threadedly connected with the mating thread 12.

[0030] Through the above technical solution, in the buffer block provided in this disclosure, one of the base 1 and the adjusting rod 2 is provided with a mating thread 12, and the other is provided with a forward thread and a reverse thread with opposite directions of rotation. In this way, when the adjusting rod 2 is inserted into the mating cavity 11, rotating the adjusting rod 2 in the forward direction so that the forward thread engages with the mating thread 12, or rotating the adjusting rod 2 in the reverse direction so that the reverse thread engages with the mating thread 12, can achieve the fixation between the adjusting rod 2 and the base 1. This improves the flexibility of installing the buffer block on the vehicle body. Specifically, when the buffer block provided in this disclosure is applied to the automotive field, during vehicle assembly, the base 1 can first be fixed to the vehicle body, the adjusting rod 2 can be inserted into the mating cavity 11, the tailgate is closed, and the adjusting rod 2 moves into the mating cavity 11 under the pressure of the tailgate until the tailgate is closed. At this time, the adjusting rod 2 contacts the tailgate, and the contact state can effectively limit the closing of the tailgate. Depending on the different mating dimensions of the vehicle body and the tailgate, the distance that the adjusting rod 2 moves into the mating cavity 11 is also different, thereby achieving the purpose of adaptive size adjustment of the buffer block. Finally, the tailgate is opened, and the adjusting rod 2 is rotated forward or backward to fix the adjusting rod 2 to the base 1, i.e., the vehicle body, thus realizing the installation of the buffer block on the vehicle body.

[0031] It should be noted that in this disclosure, both the forward and reverse threads are threads capable of lifting the adjusting rod 2. That is, regardless of whether the adjusting rod 2 rotates forward or reverse, it can move axially outward towards the mating cavity 11 to ensure sufficient contact between the vehicle tailgate and the adjusting rod 2, thereby limiting and buffering the tailgate with the buffer block. Furthermore, it should be added that in this disclosure, the forward and reverse threads are two non-overlapping unidirectional threads. In this case, the mating thread 12 can also be two non-overlapping unidirectional threads with opposite directions of rotation, such as a third thread and a fourth thread. The third thread mates with the forward thread, and the fourth thread mates with the reverse thread, to fix the adjusting rod 2 to the base 1. Alternatively, the mating thread 12 can also be a dual-direction thread, having two different directions of rotation, which can mate with the forward and reverse threads respectively. In other embodiments, the forward thread and the reverse thread can also be two different directions of threads found in a double-threaded system. That is, the forward thread and the reverse thread constitute a double-threaded system as two threads with different directions of rotation. In this case, the mating thread 12 can be two non-overlapping unidirectional threads with opposite directions of rotation, respectively mating with the double-threaded system. This also achieves the purpose of fixing the adjusting rod 2 to the base 1. This disclosure does not impose any limitations on this. Finally, in this disclosure, the mating thread 12 is disposed within the mating cavity 11, i.e., on the base 1, and the first mating part 21 and the second mating part 22 are disposed on the adjusting rod 2. In other embodiments, the mating thread 12 can also be disposed on the adjusting rod 2, and correspondingly, the first mating part 21 and the second mating part 22 are disposed on the base 1. Both can achieve the above-mentioned purpose, and this disclosure does not impose any specific limitations on this.

[0032] In the buffer block provided in this disclosure, as an exemplary embodiment, the pitches of the forward thread and the reverse thread can be different. Thus, the adjusting rod 2 can select an appropriate pitch between the forward thread and the reverse thread for adjustment based on the actual clearance between the vehicle body and the tailgate.

[0033] Based on the above embodiments, as an exemplary embodiment, the pitch of the forward thread can be 0.5mm to 1mm, and / or the pitch of the reverse thread can be 0.5mm to 1mm. That is, the pitches of the forward and reverse threads can be selected within the same range, as long as they are different. In this disclosure, the pitches of the forward and reverse threads can be 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, etc., and this disclosure does not impose specific limitations on them.

[0034] In the buffer block provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 3 and Figure 4As shown, the mating cavity 11 may be provided with at least one protrusion 13, which may have a mating thread 12. The adjusting rod 2 may be provided with at least one notch 23, which is used to selectively accommodate the corresponding protrusion 13. In this way, when the notch 23 accommodates the protrusion 13, the mating thread 12 on the protrusion 13 does not contact the first thread and the second thread on the adjusting rod 2. Thus, in actual use, the operator can adjust the position of the adjusting rod 2 to first accommodate the protrusion 13 in the notch 23 so that both the forward thread and the reverse thread are offset from the mating thread 12. Then, the tailgate is closed to push the adjusting rod 2 to move relative to the accommodating cavity. After the tailgate is closed, the adjusting rod 2 is rotated to disengage the protrusion 13 from the notch 23. The mating thread 12 on the protrusion 13 can engage with the forward thread or the reverse thread to achieve the fixation between the adjusting rod 2 and the base 1.

[0035] In the buffer block provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 3 and Figure 4 As shown, a limiting rib 24 can be provided between the first mating part 21 and the second mating part 22. The limiting rib 24 is used to abut against the protrusion 13. In this way, the range of motion of the adjusting rod 2 relative to the base 1 can be limited, and it can be avoided that when the operator rotates the adjusting rod 2 to fix it to the base 1, the positive or negative thread will misalign with the mating thread 12 after the rotation angle is too large, thereby improving the reliability of fixing the adjusting rod 2 to the base 1.

[0036] In the buffer block provided in this disclosure, as an exemplary embodiment, reference is made to... Figures 4 to 6 As shown, the protrusion 13 may have a first portion 131 and a second portion 132. The mating thread 12 may include a forward thread portion formed on the first portion 131 and a reverse thread portion formed on the second portion 132. The forward thread portion is used for threaded connection with the forward thread, and the reverse thread portion is used for threaded connection with the reverse thread. That is, the protrusion 13 is provided with both a forward thread portion and a reverse thread portion, and the forward thread portion and the reverse thread portion are located in different parts of the protrusion 13. (Refer to...) Figure 5 As shown in this disclosure, the first part 131 and the second part 132 can be constructed as two parts of the protrusion 13 connected in the circumferential direction of the adjusting rod 2. The forward thread and the reverse thread can be provided at both ends of the protrusion 13. In this way, by rotating the adjusting rod 2 in different directions, it is possible to select whether the adjusting rod 2 is matched with the first part 131 or the second part 132. That is, it is possible to select whether the forward thread is matched with the forward thread portion or whether the reverse thread is matched with the reverse thread portion, so as to achieve the selection of different thread pitches.

[0037] Based on the above embodiments, as an exemplary embodiment, refer to Figure 4 As shown, there can be two protrusions 13, which can be spaced apart and arranged opposite each other. The adjusting rod 2 can be provided with two sets of first mating parts 21 and second mating parts 22. In this way, each protrusion 13 is provided with a forward thread and a reverse thread. The two sets of first mating parts 21 and second mating parts 22 can be correspondingly arranged at both ends of each protrusion 13. By rotating the adjusting rod 2, each protrusion 13 can engage with either the first mating part 21 in one set or the second mating part 22 in the other set. That is, there are two sets of forward thread engaging with forward thread, or two sets of reverse thread engaging with reverse thread, thereby improving the reliability of fixing the adjusting rod 2 to the base 1.

[0038] In some other embodiments, reference is made to Figure 6 As shown, the two protrusions 13 can also be provided with a forward thread and a reverse thread respectively. That is, one of the two protrusions 13 is provided with a forward thread and the other is provided with a reverse thread. In this case, the adjusting rod 2 can be provided with a first mating part 21 and a second mating part 22. By rotating the adjusting rod 2 in different rotation directions, the forward thread can be selected to engage with the forward thread, or the reverse thread can be selected to engage with the reverse thread, thus achieving the selection of different thread pitches.

[0039] In the buffer block provided in this disclosure, as an exemplary embodiment, the mating thread 12 can be constructed as a double-direction thread. The double-direction thread consists of two unidirectional threads with different directions of rotation. In this case, the first mating part 21 and the second mating part 22 can be respectively disposed on both sides of the double-direction thread. By rotating the adjusting rod 2, the double-direction thread engages with either the first mating part 21 or the second mating part 22, thereby fixing the adjusting rod 2 to the base 1.

[0040] In the buffer block provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 3 As shown, the adjusting rod 2 can be equipped with a mating cap 3, which can be inserted into the mating cavity 11 and has a scale 31, which can be partially located on the outside of the mating cavity 11. In this way, the operator can determine the distance that the adjusting rod 2 extends into the base 1 by reading the scale 31, and thus determine the mating clearance between the tailgate and the vehicle body.

[0041] Based on the above technical solutions, this disclosure also provides a vehicle including the above-mentioned buffer block, which has all the technical features of the above-mentioned buffer block, and therefore will not be described in detail here.

[0042] In summary, this disclosure references Figure 4As shown, there are two protrusions 13, and two sets of first mating parts 21 and second mating parts 22. The two protrusions 13 are arranged radially opposite each other along the mating cavity 11, and each protrusion 13 is provided with a forward thread and a reverse thread. The two sets of first mating parts 21 and second mating parts 22 are respectively arranged between the two protrusions 13. The two first mating parts 21 are radially opposite each other, and correspondingly, the two second mating parts 22 are radially opposite each other. Thus, when the adjusting rod 2 is rotated, clockwise rotation causes the reverse threads on the two second mating parts 22 to engage with the reverse threads on the two protrusions 13; counterclockwise rotation causes the forward threads on the two first mating parts 21 to engage with the forward threads on the two protrusions 13, thereby fixing the adjusting rod 2 to the base 1. Specifically, when using the buffer block provided in this disclosure, the base 1 can first be fixed to the vehicle body, the adjusting rod 2 can be inserted into the mating cavity 11, and the tailgate can be closed. Under the pressure of the tailgate, the adjusting rod 2 moves into the mating cavity 11 until the tailgate is completely closed. At this time, the adjusting rod 2 contacts the tailgate, which can effectively limit the closing of the tailgate. Rotating the adjusting rod 2 in the forward or reverse direction can raise the end of the adjusting rod 2. Thus, while fixing the adjusting rod 2 to the base 1, it can be ensured that the tailgate contacts the adjusting rod 2, ultimately achieving the limiting and buffering effect of the adjusting rod 2 on the tailgate. The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solution of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0044] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A buffer block for cooperating with a vehicle body and a tailgate, characterized in that, The buffer block includes a base and an adjusting rod. The base has a mating cavity. One of the mating cavity and the adjusting rod is provided with a mating thread, and the other is provided with a first mating part and a second mating part. The first mating part is provided with a forward thread, and the second mating part is provided with a reverse thread. One of the forward thread and the reverse thread is used for threaded connection with the mating thread.

2. The buffer block according to claim 1, characterized in that, The pitches of the forward thread and the reverse thread are different.

3. The buffer block according to claim 2, characterized in that, The pitch of the forward thread is 0.5mm to 1mm, and / or the pitch of the reverse thread is 0.5mm to 1mm.

4. The buffer block according to any one of claims 1-3, characterized in that, The mating cavity is provided with at least one protrusion, the protrusion having the mating thread, and the adjusting rod is provided with at least one notch, the notch being used to selectively accommodate the corresponding protrusion.

5. The buffer block according to claim 4, characterized in that, A limiting rib is provided between the first mating part and the second mating part, and the limiting rib is used to abut against the protrusion.

6. The buffer block according to claim 4, characterized in that, The protrusion has a first portion and a second portion, and the mating thread includes a forward thread portion formed on the first portion and a reverse thread portion formed on the second portion; the forward thread is used for threaded connection with the forward thread portion, and the reverse thread is used for threaded connection with the reverse thread portion.

7. The buffer block according to claim 6, characterized in that, The number of protrusions is two, and the two protrusions are arranged at intervals and opposite to each other. The adjusting rod is provided with two sets of first mating parts and second mating parts.

8. The buffer block according to claim 4, characterized in that, The mating thread structure is a double-directional thread.

9. The buffer block according to claim 1, characterized in that, The adjusting rod is provided with a mating cap, which is inserted into the mating cavity and has a scale, which is partially located on the outside of the mating cavity.

10. A vehicle, characterized in that, Includes the buffer block according to any one of claims 1-9.