Buckle structure, buffer tank and motor vehicle

Abstract

The utility model provides a buckle structure, a buffer tank and a motor vehicle, and belongs to the technical field of automobile design and manufacturing. The buckle structure comprises a base, and the first surface of the base is at least used for being arranged on a buffer tank body; a sliding groove is formed in the second surface of the base, and a connecting block is further arranged on the second surface of the base; the clamping jaw comprises a clamping piece and a connecting piece which are connected, the clamping piece is fixed to the base through the connecting piece, and the clamping piece is at least used for being connected to the desorption system; the connecting piece is provided with a sliding part, and the sliding part is movably arranged in the sliding groove; the connecting piece is provided with a connecting groove, and the connecting groove is matched with the connecting block; when the connecting piece and the base are relatively fixed, the sliding part is located in the sliding groove, and the connecting block is located in the connecting groove. And the sliding part is in interference fit with the sliding groove. The technical problem that in the prior art, fixing is not firm enough in a clamping mode can be solved.

Description

Technical Field

[0001] This application relates to the technical field of automobile design and manufacturing, and more particularly to a snap-fit ​​structure, a buffer tank, and a motor vehicle. Background Technology

[0002] The muffler, also known as a silencer or resonance tank, is an important component of a car engine exhaust system, primarily used to reduce engine noise and control emissions. The muffler connects to the front and rear ends of the engine exhaust system via intake and exhaust pipes, ensuring smooth exhaust airflow. Inside, baffles divide the interior into multiple chambers, including at least a diffuser chamber and a resonance chamber. The diffuser chamber allows the exhaust airflow to diffuse and expand, reducing airflow speed and pressure, thereby reducing noise. The resonance chamber attenuates noise within a specific frequency range by adjusting its resonant frequency.

[0003] Split-type buffer tanks are typically fixed to the vehicle's desorption system via snap-fit ​​connections. However, existing snap-fit ​​methods are not secure enough and pose a risk of detachment. Utility Model Content

[0004] This application provides a snap-fit ​​structure, a buffer tank, and a motor vehicle to solve the problem that snap-fit ​​fixing is not secure enough and there is a risk of it coming off.

[0005] In a first aspect, embodiments of this application provide a snap-fit ​​structure, including:

[0006] A base, wherein a first surface of the base is at least configured to be disposed on the buffer tank body; a second surface of the base is provided with a sliding groove, and a connecting block is also provided on the second surface of the base;

[0007] The claw includes a latching member and a connecting member connected together, the latching member being fixed to the base via the connecting member, and the latching member being used at least for connection to the desorption system;

[0008] The connector is provided with a sliding part, which is movably disposed within the sliding groove; the connector is provided with a connecting groove, which is adapted to the connecting block;

[0009] When the connector is fixed relative to the base, the sliding part is located in the sliding groove, and the connecting block is located in the connecting groove;

[0010] The sliding part is interference-fitted with the sliding groove, and / or the connecting block is interference-fitted with the connecting groove.

[0011] In some embodiments of this application, the sliding groove extends along a first direction, and the sliding part can slide within the sliding groove along the first direction;

[0012] The connecting groove extends along the first direction, the connecting block slides within the connecting groove along the first direction, and the connecting groove is provided with a stop portion for abutting against the connecting block.

[0013] In some embodiments of this application, the connector is provided with a limiting part, and the limiting part is connected to the sliding part;

[0014] When the connecting block abuts against the stop portion, the limiting portion is located outside the sliding groove, and the limiting portion abuts against the base.

[0015] In some embodiments of this application, the base is provided with a guide member, which closes at least a portion of the sliding groove;

[0016] When the sliding part slides in the sliding groove, the surface of the sliding part facing the base abuts against the bottom surface of the sliding groove, and the surface of the sliding groove away from the base abuts against the guide member.

[0017] In some embodiments of this application, the claw is provided with an abutment, the abutment having an abutment end that is away from the base;

[0018] When the claw is connected to the desorption system via the snap-fit ​​member, the abutting end is at least used to abut against the desorption system.

[0019] In some embodiments of this application, the abutment includes an elastic body, which is connected to the snap-fit ​​member;

[0020] The elastic body is connected to the abutting end, and the abutting end moves closer to or further away from the base through the elastic body; when the claw is connected to the de-attachment system through the snap-fit ​​member, the abutting end moves closer to the base.

[0021] In some embodiments of this application, the sliding part is provided with a protrusion, the sliding part is located in the sliding groove, and the protrusion abuts against the inner wall of the sliding groove.

[0022] In some embodiments of this application, the connector is disposed on the bottom surface of the sliding groove;

[0023] The connector includes a sidewall connected to the bottom surface of the sliding groove, and a contact surface facing away from the bottom surface of the sliding groove.

[0024] The sidewall of the connector faces the inner wall of the sliding groove, and the sidewall of the connector is interference-fitted with the inner wall of the sliding groove; and / or, the contact surface of the connector faces the bottom surface of the sliding groove, and the contact surface of the connector is interference-fitted with the bottom surface of the sliding groove.

[0025] Secondly, embodiments of this application provide a buffer tank, including a buffer tank body and a snap-fit ​​structure as described in the above embodiments, wherein the buffer tank body is connected to the desorption system through the snap-fit ​​structure.

[0026] Thirdly, embodiments of this application provide a motor vehicle, including a desorption system and a buffer tank as described in the above embodiments.

[0027] The snap-fit ​​structure, buffer tank, and motor vehicle provided in this application embodiment ensure a more secure fixation of the snap-fit ​​structure and reduce the risk of detachment through the interference fit between the sliding part and the sliding groove, and between the connecting block and the connecting groove. The design of the sliding part and the sliding groove makes the installation process simpler and reduces installation time and labor costs. The interference fit design improves the durability of the snap-fit ​​structure, makes the connection between the buffer tank and the desorption system more secure, and can better cope with the vibration and impact generated during the operation of the motor vehicle, thereby effectively reducing the noise of the motor vehicle engine. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0029] Figure 1 This is a schematic diagram of the connection between the snap-fit ​​structure and the buffer tank provided in the embodiments of this application;

[0030] Figure 2 This is a schematic diagram of the connection between the claw and the base provided in an embodiment of this application;

[0031] Figure 3 for Figure 2 Enlarged view of section A;

[0032] Figure 4 This is a schematic diagram of the latching claw in the snap-fit ​​structure provided in the embodiments of this application;

[0033] Figure 5 This is a bottom view of the latch claw in the snap-fit ​​structure provided in the embodiment of this application;

[0034] Figure 6 for Figure 5 Enlarged view of part A in the middle.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 01. Buffer tank body;

[0037] 100. Base; 110. Sliding groove; 120. Connecting block; 130. Guide component;

[0038] 200, claw; 210, latching part; 220, connector; 221, sliding part; 2211, protrusion; 222, connecting groove; 2221, stop part; 223, limiting part; 230, abutting part; 231, abutting end; 232, elastic body.

[0039] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0040] As mentioned in the background section, split-type buffer tanks are usually fixed to the vehicle's desorption system by snap-fitting. Generally, a round slot is used to connect the cylindrical fastener of the claw, and the claw is fixed to the fixing hole of the desorption system. This connection method is not secure enough and there is a risk of it coming off.

[0041] To address the aforementioned technical problems, this application provides a snap-fit ​​structure, a buffer tank, and a motor vehicle. Through the interference fit between the sliding part and the sliding groove, and between the connecting block and the connecting groove, the snap-fit ​​structure is secured more firmly, reducing the risk of detachment. The design and sliding groove simplify the installation process, reducing installation time and labor costs. The interference fit design improves the durability of the snap-fit ​​structure, enabling it to better withstand vibrations and impacts generated during motor vehicle operation.

[0042] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0043] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0044] In the description of the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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 the embodiments of this application.

[0045] In the description of the embodiments of this application, it should be understood that the terms "comprising" and "having" as used herein, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0046] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0047] refer to Figures 1-4 This application provides a snap-fit ​​structure, including:

[0048] The base 100 has a first surface that is at least used for mounting on the buffer tank body 01; the second surface of the base 100 is provided with a sliding groove 110 and a connecting block 120.

[0049] The claw 200 includes a connecting member 210 and a connector 220. The connecting member 210 is fixed to the base 100 via the connector 220. The connecting member 210 is used at least for connection to the desorption system.

[0050] The connector 220 is provided with a sliding part 221, which is movably disposed in the sliding groove 110; the connector 220 is provided with a connecting groove 222, which is adapted to the connecting block 120.

[0051] When the connector 220 is fixed relative to the base 100, the sliding part 221 is located in the sliding groove 110, and the connecting block 120 is located in the connecting groove 222.

[0052] The sliding part 221 is interference-fitted with the sliding groove 110, and / or the connecting block 120 is interference-fitted with the connecting groove 222.

[0053] It is important to understand that an interference fit is a type of mechanical connection where the dimensions of the two mating parts are designed such that a certain pressure or force must be applied during assembly to join them together. This type of fit utilizes the elastic deformation of the material to create a tight contact between the mating parts, thereby forming a tight contact and friction. This friction can effectively prevent relative movement of the mating parts during use, thus ensuring the strength and stability of the connection.

[0054] The interference fit between the sliding part 221 and the sliding groove 110, and between the connecting block 120 and the connecting groove 222, ensures that the snap-fit ​​structure is more secure and reduces the risk of detachment. The design of the sliding part 221 and the sliding groove 110 makes the installation process simpler and reduces installation time and labor costs. The interference fit design also improves the durability of the snap-fit ​​structure and can better cope with the vibration and impact generated during the driving of the motor vehicle.

[0055] For example, the height of the connecting block 120 gradually increases along the first direction so that when the connecting block 120 and the connecting groove 222 are interference-fitted, the connecting member 220 can enter the base 100 for easy installation.

[0056] refer to Figure 5 In some possible implementations, the sliding groove 110 extends along a first direction, and the sliding part 221 can slide within the sliding groove 110 along the first direction.

[0057] The connecting groove 222 extends along the first direction, and the connecting block 120 slides in the connecting groove 222 along the first direction. The connecting groove 222 is provided with a stop 2221, which is used to abut against the connecting block 120.

[0058] The sliding groove 110 extends along the first direction to form a guide channel. The sliding part 221 is designed to slide in the sliding groove 110 along the first direction, so that the sliding part 221 can move freely in the sliding groove 110, thereby achieving the initial fixation of the buffer tank and the desorption system.

[0059] The connecting groove 222 also extends along the first direction to form another guide channel, so that the connecting block 120 is designed to slide in the connecting groove 222 along the first direction.

[0060] With the dual guiding structure of sliding groove 110 and sliding part 221, connecting groove 222 and connecting block 120, the buffer tank can be more firmly fixed on the desorption system, reducing the risk of detachment. The design of sliding groove 110 and connecting groove 222 makes the installation process simpler, and fixation can be completed by simply sliding along the first direction. Sliding groove 110 and connecting groove 222 also allow the buffer tank to slide along a predetermined direction during installation, reducing errors in the installation process and improving the stability of fixation. The setting of stop part 2221 further enhances the fixation effect, and can effectively prevent the buffer tank from detaching even if vibration occurs during operation.

[0061] refer to Figure 4 In some possible implementations, the connector 220 is provided with a limiting part 223, which is connected to the sliding part 221.

[0062] When the connecting block 120 abuts against the stop part 2221, the limiting part 223 is located outside the sliding groove 110, and the limiting part 223 abuts against the base 100.

[0063] By using the limiting part 223, the sliding part 221 can be limited at the limiting part 223 when sliding in the sliding groove 110, thereby preventing the sliding part 221 from sliding excessively. The design of the stop part 2221 and the limiting part 223 in the connecting groove 222 provides double protection, ensuring that the connecting block and the sliding block will not easily come out after installation, thereby improving the safety and reliability of the entire system. The design of the sliding groove 110 and the sliding part 221 makes the installation and disassembly of the buffer tank more convenient, reducing installation time and labor costs.

[0064] refer to Figure 3 In some possible implementations, the base 100 is provided with a guide 130 that closes at least part of the sliding groove 110.

[0065] When the sliding part 221 slides in the sliding groove 110, the surface of the sliding part 221 facing the base 100 abuts against the bottom surface of the sliding groove 110, and the surface of the sliding groove 110 away from the base 100 abuts against the guide member 130.

[0066] By setting the guide member 130, a portion of the sliding groove 110 is closed. When the sliding part 221 slides within the sliding groove 110, it can form multi-point contact with the bottom surface of the groove and the guide member 130, increasing the force-bearing area of ​​the sliding part 221, thereby improving the fixation firmness and ensuring the stability of the sliding part 221 within the sliding groove 110. This prevents the sliding part 221 from shifting during the sliding process and makes the sliding part 221 more constrained when sliding within the sliding groove 110, reducing the risk of the sliding part 221 coming off. By adding the guide member 130, the existing snap-fit ​​structure is improved. The structure is simple, easy to implement, and has low manufacturing cost.

[0067] refer to Figure 4 In some possible implementations, the claw 200 is provided with an abutment 230, the abutment 230 having an abutment end 231 that is away from the base 100.

[0068] When the claw 200 is connected to the desorption system via the snap-fit ​​210, the abutment end 231 is used to abut against the desorption system at least once.

[0069] The sliding part 221 first slides along the sliding groove 110 to fix the claw 200 on the base 100, thus achieving initial fixation; the claw 200 is connected to the desorption system through the snap-fit ​​part 210, and the abutting end 231 of the abutting part 230 abuts against the desorption system to complete the final fixation.

[0070] By setting up the abutment, the pawl 200 can be prevented from sinking too deep into the connection of the desorption system, which could damage the parts. It can also make the pawl 200 more securely fixed to the desorption system, thereby increasing the stability of the connection between the buffer tank and the desorption system.

[0071] In some possible implementations, the abutment 230 includes an elastic body 232 that is connected to the snap-fit ​​member 210.

[0072] The elastic body 232 is connected to the abutment end 231, and the abutment end 231 moves closer to or further away from the base 100 through the elastic body 232; when the claw 200 is connected to the desorption system through the snap-fit ​​member 210, the abutment end 231 moves closer to the base 100.

[0073] During the snap-fitting process, the elastic body 232 undergoes elastic deformation, causing the abutting end 231 to approach the base 100. The elastic body 232 adheres to the surface of the desorption system, and the claw 200 enters the connection point of the desorption system to complete the final fixation.

[0074] The design of the elastic body 232 gives the abutment 230 a certain degree of elasticity, allowing it to deform within a certain range. This enables the abutment end 231 to automatically adjust its position, ensuring a tight connection between the claw 200 and the desorption system, thereby providing a better fixing effect. The abutment end 231, by moving closer to or further away from the base 100 through the elastic body 232, can effectively prevent the claw 200 from sinking too deeply into the connection of the desorption system, thus avoiding damage to the parts.

[0075] refer to Figure 6 In some possible implementations, the snap-fit ​​component 210 includes two telescopic portions with a certain degree of elasticity. These telescopic portions are used to connect and fix with the desorption system. During the process of the telescopic portions entering the fixing hole of the desorption system, the two telescopic portions move closer to each other, reducing the volume of the snap-fit ​​component 210 so that it can align with the desorption system. When the snap-fit ​​component 210 is fixed to the desorption system, the two telescopic portions, due to their elasticity, gradually move away from each other, supporting the snap-fit ​​component 210 at the fixing hole of the desorption system, further increasing the stability of the buffer tank and the vehicle.

[0076] In some possible implementations, the distance between the ends of the two telescopic parts away from the abutment 230 is smaller than the distance between the ends closer to the abutment 230, so that the two telescopic parts deform and move closer to each other when they enter the fixing hole of the desorption system.

[0077] In some possible implementations, the end of the telescopic part near the abutment 230 has a reinforcement. The reinforcement is located on the side of the two telescopic parts that are close to each other. The end of the reinforcement extends beyond the end of the telescopic part near the abutment 230, so that when the telescopic part is fixed relative to the fixing hole of the de-adhesion system, a barb-like structure is generated to prevent the snap-fit ​​210 from coming out, and further increase the stability of the buffer tank and the motor vehicle.

[0078] In some possible implementations, the latch 200's latching member 210, connecting member 220, and abutting member 230 are integrally manufactured. The latch 200 can be made of rubber, which has excellent elasticity and wear resistance, making it suitable for applications requiring high elasticity and wear resistance. The latch 200 can also be made of thermoplastic elastomer, which is easy to process and mold, making it suitable for applications requiring complex shapes and high production efficiency. The latch 200 can also be made of polyetheretherketone (PEEK), which has certain elasticity and excellent mechanical properties, making it suitable for high-strength and high-temperature environments. It should be understood that as long as the latch 200 can achieve connection and fixation with the desorption system, this application embodiment does not impose too many restrictions on the material of the latch 200.

[0079] In some possible implementations, the sliding part 221 is provided with a protrusion 2211, the sliding part 221 is located in the sliding groove 110, and the protrusion 2211 abuts against the inner wall of the sliding groove 110.

[0080] By providing a protrusion 2211 on the sliding part 221, the number of points for interference fit of the snap-fit ​​structure is increased, making the sliding part 221 more securely fixed in the sliding groove 110; the protrusion 2211 abuts against the inner wall of the sliding groove 110, increasing friction and fixing force, reducing the risk of loosening and detachment of the sliding part 221 in the sliding groove 110; the abutment between the protrusion 2211 on the sliding part 221 and the inner wall of the sliding groove 110 can effectively absorb and disperse the vibration generated during vehicle operation, further enhancing the fixing effect of the buffer tank and preventing it from detaching during vibration.

[0081] In some possible implementations, the front end of the protrusion 2211 along the first direction is arc-shaped to facilitate the sliding part 221 entering the sliding groove 110.

[0082] In some possible implementations, the connector 220 is disposed on the bottom surface of the sliding groove 110.

[0083] The connector 220 includes a sidewall connected to the bottom surface of the sliding groove 110 and a contact surface facing away from the bottom surface of the sliding groove 110.

[0084] The sidewall of the connector 220 faces the inner wall of the sliding groove 110, and the sidewall of the connector 220 is interference-fitted with the inner wall of the sliding groove 110; and / or, the contact surface of the connector 220 faces the bottom surface of the sliding groove 110, and the contact surface of the connector 220 is interference-fitted with the bottom surface of the sliding groove 110.

[0085] The connector 220 is designed to be installed on the bottom surface of the sliding groove 110. This design allows the connector to be fixed and supported within the sliding groove. The contact design of the side wall and contact surface of the connector 220 with the sliding groove 110 allows the connector to be better embedded in the sliding groove, providing a more stable fixing effect. The side wall of the connector 220 is interference-fitted with the inner wall of the sliding groove 110, which allows the connector 220 to be firmly fixed within the sliding groove 110, preventing loosening and dislodgement. In addition to the interference fit between the side wall and the inner wall of the sliding groove 110, the contact surface of the connector 220 also faces the bottom surface of the sliding groove 110, and the two are also interference-fitted, further enhancing the fixing effect of the connector and ensuring that it will not easily come out during use.

[0086] In some possible implementations, the front end of the sliding part 221 along the first direction side arm has a cutout to facilitate the alignment of the sliding part 221 into the sliding groove 110.

[0087] This embodiment of the application increases the interference fit points mentioned above: the interference fit between the connecting block 120 and the connecting groove 222, and the interference fit between the protrusions 2211 on both sides of the sliding part 221 and the sliding groove 110. This increases the interference between the claw 200 and the base 100, which increases the release force of the snap-fit ​​structure by 140-160N, making the fixation between the buffer tank and the snap-fit ​​structure more secure.

[0088] This application provides a buffer tank, including a buffer tank body 01 and a snap-fit ​​structure as described in the above embodiment. The buffer tank body 01 is connected to the desorption system through the snap-fit ​​structure.

[0089] In some possible implementations, the buffer tank body 01 may have multiple snap-fit ​​structures, which are arranged along the axial direction of the buffer tank body 01.

[0090] This application provides a motor vehicle, including a desorption system and a buffer tank as described in the above embodiments.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A snap-fit ​​structure, characterized in that, include: A base (100) has a first surface for being disposed on at least the buffer tank body (01); a second surface of the base (100) is provided with a sliding groove (110); and a connecting block (120) is also provided on the second surface of the base (100). The claw (200) includes a latching member (210) and a connector (220) connected together, the latching member (210) being fixed to the base (100) via the connector (220), and the latching member (210) being used at least for connection to the desorption system; The connector (220) is provided with a sliding part (221), which is movably disposed in the sliding groove (110); the connector (220) is provided with a connecting groove (222), which is adapted to the connecting block (120); When the connector (220) is fixed relative to the base (100), the sliding part (221) is located in the sliding groove (110), and the connecting block (120) is located in the connecting groove (222); The sliding part (221) is interference-fitted with the sliding groove (110), and / or the connecting block (120) is interference-fitted with the connecting groove (222).

2. The snap-fit ​​structure according to claim 1, characterized in that, The sliding groove (110) extends along a first direction, and the sliding part (221) can slide within the sliding groove (110) along the first direction; The connecting groove (222) extends along the first direction, and the connecting block (120) slides in the connecting groove (222) along the first direction. The connecting groove (222) is provided with a stop (2221), which is used to abut against the connecting block (120).

3. The snap-fit ​​structure according to claim 2, characterized in that, The connector (220) is provided with a limiting part (223), and the limiting part (223) is connected to the sliding part (221); When the connecting block (120) abuts against the stop (2221), the limiting part (223) is located outside the sliding groove (110), and the limiting part (223) abuts against the base (100).

4. The snap-fit ​​structure according to claim 1, characterized in that, The base (100) is provided with a guide (130), which closes at least a portion of the sliding groove (110); When the sliding part (221) slides in the sliding groove (110), the surface of the sliding part (221) facing the base (100) abuts against the bottom surface of the sliding groove (110), and the surface of the sliding groove (110) away from the base (100) abuts against the guide (130).

5. The snap-fit ​​structure according to claim 1, characterized in that, The claw (200) is provided with an abutment (230), the abutment (230) having an abutment end (231) which is away from the base (100); When the claw (200) is connected to the desorption system via the snap-fit ​​(210), the abutting end (231) is used to abut against the desorption system at least.

6. The snap-fit ​​structure according to claim 5, characterized in that, The abutment (230) includes an elastic body (232), which is connected to the snap-fit ​​member (210); The elastic body (232) is connected to the abutment end (231), and the abutment end (231) moves closer to or further away from the base (100) through the elastic body (232); when the claw (200) is connected to the desorption system through the snap-fit ​​member (210), the abutment end (231) moves closer to the base (100).

7. The snap-fit ​​structure according to any one of claims 1-6, characterized in that, The sliding part (221) is provided with a protrusion (2211), the sliding part (221) is located in the sliding groove (110), and the protrusion (2211) abuts against the inner wall of the sliding groove (110).

8. The snap-fit ​​structure according to any one of claims 1-6, characterized in that, The connector (220) is disposed on the bottom surface of the sliding groove (110); The connector (220) includes a sidewall connected to the bottom surface of the sliding groove (110) and a contact surface facing away from the bottom surface of the sliding groove (110); The sidewall of the connector (220) faces the inner wall of the sliding groove (110), and the sidewall of the connector (220) is interference-fitted with the inner wall of the sliding groove (110); and / or, the contact surface of the connector (220) faces the bottom surface of the sliding groove (110), and the contact surface of the connector (220) is interference-fitted with the bottom surface of the sliding groove (110).

9. A buffer tank, characterized in that, It includes a buffer tank body (01) and a snap-fit ​​structure as described in any one of claims 1-8, wherein the buffer tank body (01) is connected to the desorption system via the snap-fit ​​structure.

10. A motor vehicle, characterized in that, Includes a desorption system and a buffer tank as described in claim 9.

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