Exhaust assembly and hydraulic braking device

Abstract

This invention discloses an exhaust assembly and a hydraulic braking device. The exhaust assembly includes an exhaust seat and an exhaust member. The exhaust seat has a first receiving groove and a first exhaust channel communicating with the bottom surface of the first receiving groove. The exhaust member includes an exhaust body, an elastic element, and a blocking member. The exhaust body has a second receiving groove and a second exhaust channel communicating with the second receiving groove. The elastic element is received in the second receiving groove. The blocking member is installed on the side of the elastic element adjacent to the first exhaust channel. The blocking member includes a blocking portion. The blocking portion is shaped like a cone or a frustum. When the exhaust body is locked in the exhaust seat, the side of the blocking portion abuts against the first exhaust channel, so that the blocking portion elastically blocks the communication between the first exhaust channel and the second exhaust channel.

Description

Exhaust assembly and hydraulic braking device Technical Field

[0001] This invention relates to a component and device, and more particularly to an exhaust component and a hydraulic braking device. Prior Technology

[0002] When existing brake pads on cars / motorcycles need to be replaced due to damage, the new brake pads are not filled with brake fluid. Therefore, the air in the brake pads must be purged from the brake lines to prevent air from affecting braking safety.

[0003] Furthermore, when replacing a new brake pad, the locking and sealing screws of the brake pad's vent are usually removed. Then, a second mechanic is called to take the brakes off, allowing brake fluid to be re-injected into the new brake pad. At the same time, the first mechanic needs to observe whether the brake fluid is squeezing air out of the vent from the new brake pad. When brake fluid is being expelled from the vent, it indicates that there is no air in the new brake pad. At this point, the first mechanic can call the second mechanic to stop operating the brakes. After stopping, the locking and sealing screws are re-locked to seal the vent, thus completing the brake pad replacement repair.

[0004] However, as can be seen from the above-mentioned work of replacing brake discs, it requires multiple people to work at the same time. Therefore, replacing brake discs is currently a very time-consuming and labor-intensive maintenance task in maintenance shops, and it is necessary to improve it.

[0005] Therefore, the creator believed that the above-mentioned defects could be improved. So he devoted himself to research and applied scientific principles, and finally proposed a design that is reasonable and effective in improving the above-mentioned defects. Summary of the Invention

[0006] The present invention provides an exhaust assembly and a hydraulic braking device that can effectively improve the defects that may occur in existing braking devices.

[0007] One embodiment of this invention discloses an exhaust assembly, comprising: an exhaust seat having a first receiving groove and a first exhaust channel communicating with the bottom surface of the first receiving groove; and an exhaust member capable of being locked to the exhaust seat such that a portion of the exhaust member is located within the first receiving groove; wherein the exhaust member comprises: an exhaust body having a second receiving groove and a second exhaust channel communicating with the second receiving groove; wherein, when the exhaust member is locked to the exhaust seat, the second receiving groove of the exhaust body is located within the first receiving groove; and an elastic element. The exhaust body is accommodated in the second accommodating groove; and a blocking member is installed on the side of the elastic element adjacent to the first exhaust passage; wherein the blocking member includes a blocking portion, the blocking portion being shaped as a cone or a frustum; wherein when the exhaust body is locked to the exhaust seat, the side of the blocking portion abuts against the first exhaust passage, so that the blocking portion blocks the second exhaust passage; wherein when the exhaust body is loosened to the exhaust seat, the side of the blocking portion abuts against the first exhaust passage, so that the blocking portion elastically blocks the second exhaust passage.

[0008] One embodiment of this invention discloses a hydraulic braking device, comprising: a braking body; and an exhaust assembly mounted on the braking body. The exhaust assembly includes: an exhaust seat having a first receiving groove and a first exhaust channel communicating with the bottom surface of the first receiving groove; and an exhaust member capable of being locked to the exhaust seat, such that a portion of the exhaust member is located within the first receiving groove; wherein the exhaust member includes: an exhaust body having a second receiving groove and a second exhaust channel communicating with the second receiving groove; wherein, when the exhaust member is locked to the exhaust seat, the second receiving groove of the exhaust body is located within the first receiving groove; An elastic element is housed within a second receiving groove; and a blocking member is installed on the side of the elastic element adjacent to the first exhaust passage; wherein the blocking member includes a blocking portion, the blocking portion being shaped as a cone or a frustum; wherein, when the exhaust body is locked to the exhaust seat, the side of the blocking portion abuts against the first exhaust passage, so that the blocking portion blocks the communication between the first exhaust passage and the second exhaust passage; wherein, when the exhaust body is loosened from the exhaust seat, the side of the blocking portion abuts against the first exhaust passage, so that the blocking portion elastically blocks the communication between the first exhaust passage and the second exhaust passage.

[0009] In summary, the exhaust assembly and hydraulic braking device disclosed in this invention can independently complete the exhaust operation by means of the technical solution that "when the exhaust body is locked loosely to the exhaust seat, the side of the blocking part abuts against the first exhaust channel, so that the blocking part elastically blocks the connection between the first exhaust channel and the second exhaust channel", thereby increasing the efficiency of oil replacement.

[0010] To further understand the features and technical content of this work, please refer to the following detailed description and accompanying drawings. However, these descriptions and drawings are for illustrative purposes only and do not limit the scope of protection of this work. Simple Explanation of the Diagram

[0011] Figure 1 is a three-dimensional schematic diagram of the exhaust assembly of Embodiment 1 of this invention.

[0012] Figure 2 is a three-dimensional schematic diagram of Figure 1 from another perspective.

[0013] Figure 3 is a schematic diagram of the decomposition of Figure 1.

[0014] Figure 4 is a schematic diagram of the decomposition of Figure 1.

[0015] Figure 5 is a schematic diagram of the action in Figure 4.

[0016] Figure 6 is a schematic diagram of the subsequent actions in Figure 5.

[0017] Figure 7 is a three-dimensional schematic diagram of the hydraulic braking device in Embodiment 2 of this invention.

[0018] Figure 8 is a three-dimensional schematic diagram of the hydraulic braking device in Embodiment 3 of this invention.

[0019] Figure 9 is an exploded view of the exhaust assembly in Embodiment 4 of this invention.

[0020] Figure 10 is a schematic diagram of the operation shown in Figure 9.

[0021] Figure 11 is a schematic diagram of the subsequent actions in Figure 10. Implementation

[0022] The following specific embodiments illustrate the implementation of the "exhaust assembly and hydraulic braking device" disclosed in this invention. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. Furthermore, the accompanying drawings are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this invention in detail, but the disclosed content is not intended to limit the scope of protection of this invention.

[0023] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the associated listed items.

[0024] Please refer to Figures 1 to 6, which represent one embodiment of this invention. This embodiment discloses an exhaust assembly 100. The exhaust assembly 100 allows the user to perform the exhaust operation independently, thereby increasing the efficiency of changing the fluid. The exhaust assembly 100 can be installed on a hydraulic braking device (e.g., a master cylinder or brake caliper) according to actual design requirements, and the exhaust assembly 100 can be sold separately or together with the hydraulic braking device.

[0025] It should be noted that, for ease of understanding of this embodiment, the drawings only show the structure and connection relationship of the components of the exhaust assembly 100, but this work is not limited to the drawings. The following will describe each component of the exhaust assembly 100 and its connection relationship.

[0026] [Example 1]

[0027] As shown in Figures 1 to 6, the exhaust assembly 100 includes an exhaust seat 1 and an exhaust member 2 connected to the exhaust seat 1. The exhaust seat 1 can be installed in a hydraulic braking device 200 (as shown in Figures 7 and 8) to expel air from the hydraulic circuit of the hydraulic braking device 200. The exhaust seat 1 has a first receiving groove AS1 and a first exhaust channel EC1 communicating with the bottom surface of the first receiving groove AS1.

[0028] In this embodiment, the first receiving groove AS1 has an internal thread IT to lock the exhaust member 2. Specifically, the inner wall of the first receiving groove AS1 is formed with the internal thread IT. The first exhaust passage EC1 can be connected to the oil passage in the hydraulic braking device 200, so that air can be discharged from the oil passage in the hydraulic braking device 200 to the first exhaust passage EC1.

[0029] The exhaust component 2 can be locked to the exhaust seat 1 so that part of the exhaust component 2 is located in the first receiving groove AS1, so that the exhaust component 2 can discharge the air in the oil circuit of the oil circuit braking device 200 through the exhaust seat 1.

[0030] Specifically, the exhaust component 2 includes an exhaust body 21, an elastic element 22 located within the exhaust body 21, a blocking member 23 installed on the elastic element 22, and an external connection portion connected to the exhaust body 21.

[0031] The exhaust body 21 has an external thread ET, and the exhaust seat 1 has an internal thread IT corresponding to the external thread ET. The external thread ET of the exhaust body 21 engages with the internal thread IT of the exhaust seat 1, so that the exhaust body 21 can be locked to the exhaust seat 1.

[0032] Furthermore, the exhaust body 21 has a second receiving groove AS2 and a second exhaust passage EC2 communicating with the second receiving groove AS2. When the exhaust component 2 is locked to the exhaust seat 1, the second receiving groove AS2 of the exhaust body 21 is located within the first receiving groove AS1.

[0033] The elastic element 22 is housed within the second receiving groove. The elastic element 22 can apply a blocking force to the blocking member 23, causing the blocking member 23 to abut against the first exhaust passage EC1. In this embodiment, when the exhaust member 2 is locked to the exhaust seat 1, the elastic element 22 applies a greater blocking force to the blocking member 23 due to compression between the first receiving groove AS1 and the second receiving groove AS2, causing the blocking member 23 to abut against the first exhaust passage EC1, thus preventing the oil in the hydraulic circuit of the hydraulic braking device 200 from flowing through the first exhaust passage EC1 to the second exhaust passage EC2.

[0034] Conversely, when the exhaust component 2 is loosened from the exhaust seat 1, the elastic element 22, not being compressed between the first receiving groove AS1 and the second receiving groove AS2, applies a small blocking force to the blocking component 23, so that the blocking component 23 elastically abuts against the first exhaust passage EC1, allowing the air and a small amount of oil in the oil circuit of the hydraulic braking device 200 to flow through the first exhaust passage EC1 to the second exhaust passage EC2 due to the braking pressure.

[0035] The blocking member 23 is installed on the side of the elastic element 22 adjacent to the first exhaust passage EC1. Specifically, the blocking member 23 includes a blocking portion 231, a connecting portion 232 connecting the blocking portion 231, and a guiding portion 233 connecting the connecting portion 232.

[0036] The blocking part 231 is shaped like a cone or a frustum. In this embodiment, when the exhaust body 21 is locked to the exhaust seat 1, the side of the blocking part 231 abuts against the first exhaust channel EC1, so that the blocking part 231 blocks the communication between the first exhaust channel EC1 and the second exhaust channel EC2. When the exhaust member 2 is locked to the exhaust seat 1, the elastic element 22 applies a large blocking force to the blocking member 23 due to the compression between the first receiving groove AS1 and the second receiving groove AS2, so that the blocking part 231 abuts against the first exhaust channel EC1, preventing the oil in the oil circuit of the hydraulic braking device 200 from flowing to the second exhaust channel EC2 through the first exhaust channel EC1.

[0037] Conversely, when the exhaust body 21 is loosened in the exhaust seat 1, the side of the blocking part 231 abuts against the first exhaust passage EC1, so that the blocking part 231 elastically blocks the communication between the first exhaust passage EC1 and the second exhaust passage EC2. In other words, when the exhaust component 2 is loosened in the exhaust seat 1, the elastic element 22, because it is not compressed between the first receiving groove AS1 and the second receiving groove AS2, applies a small blocking force to the blocking component 23, so that the blocking part 231 elastically abuts against the first exhaust passage EC1, allowing the air and a small amount of oil in the oil circuit of the hydraulic braking device 200 to flow through the first exhaust passage EC1 to the second exhaust passage EC2 due to the braking pressure.

[0038] As described above, when the exhaust body 21 is loosened to the exhaust seat 1, the blocking part 231 elastically blocks the connection between the first exhaust passage EC1 and the second exhaust passage EC2, so that the maintenance personnel can complete the exhaust operation independently, thereby increasing the efficiency of changing oil.

[0039] It should be noted that when the side of the blocking part 231 abuts against the first exhaust channel EC1, the first angle R1 between the side of the blocking part 231 and the bottom surface of the first receiving groove AS1 is 45 degrees, and the second angle R2 between the bottom surface of the first receiving groove AS1 and the inner sidewall of the first exhaust channel EC1 is 90 degrees, so that the blocking part 231 can effectively block the first exhaust channel EC1 and prevent the fluid in the first exhaust channel EC1 from overflowing.

[0040] Furthermore, the blocking member 23 further includes a connecting portion 232 connecting to the blocking part 231 and a guiding portion 233 connecting to the connecting portion 232. The guiding portion 233 passes through the elastic element 22, so that the blocking member 23 can move back and forth along the elastic direction of the elastic element 22 via the guiding portion 233. Thus, in this embodiment, the blocking member 23 accurately abuts against the first exhaust passage EC1 along the elastic direction via the guiding portion 233.

[0041] As shown in Figures 1 to 3, the exhaust component 2 includes an external portion 24. The external portion 24 connects to the side of an exhaust body 21 away from the blocking portion 231, and is adjacent to the external thread ET of the exhaust body 21. The external portion 24 can discharge a fluid, and the fluid contains a gas. In other words, the external portion 24 has an external exhaust passage EEC. The external exhaust passage EEC communicates with a second exhaust passage EC2. When the first exhaust passage EC1 is connected to the second exhaust passage EC2, the external exhaust passage EEC communicates with the first exhaust passage EC1 via the second exhaust passage EC2, so that the fluid can be discharged from the first exhaust passage EC1 through the second exhaust passage EC2 and the external exhaust passage EEC.

[0042] It should be noted that the external part 24 can be connected to an external pipeline (not shown in the figure) to guide the fluid (e.g., air or oil) to the bucket to collect the oil (e.g., engine oil) for easy cleaning.

[0043] Furthermore, the exhaust assembly 100 further includes a sealing ring 3. The sealing ring 3 is sleeved on the exhaust body 21, and the sealing ring 3 is positioned between the external portion 24 and the external thread ET of the exhaust body 21 to prevent oil from overflowing from the gap between the external thread ET and the internal thread IT.

[0044] [Example 2]

[0045] Please refer to Figure 7, which shows Embodiment Two of this invention. Since this embodiment is similar to Embodiment One described above, the similarities between the two embodiments will not be repeated. The differences between this embodiment and Embodiment One are roughly explained as follows:

[0046] As shown in Figure 7, the hydraulic braking device 200 of this embodiment is a brake caliper. The hydraulic braking device 200 includes a brake body 4 and an exhaust assembly 100. The exhaust assembly 100 is installed on the brake body 4 to facilitate the replacement of the hydraulic fluid in the hydraulic circuit of the hydraulic braking device 200. The exhaust assembly 100 has been described in detail in Embodiment 1 and will not be repeated here.

[0047] [Example 3]

[0048] Please refer to Figure 8, which shows Embodiment 3 of this invention. Since this embodiment is similar to Embodiment 2 described above, the similarities between the two embodiments will not be repeated. The differences between this embodiment and Embodiment 2 are roughly explained as follows:

[0049] As shown in Figure 8, the hydraulic braking device 200 in this embodiment can also be a master brake cylinder, but this invention is not limited to this.

[0050] [Example 4]

[0051] Please refer to Figures 9 to 11, which represent Embodiment 4 of this invention. Since this embodiment is similar to Embodiment 1 described above, the similarities between the two embodiments will not be repeated. The differences between this embodiment and Embodiment 1 are roughly explained as follows:

[0052] The exhaust component 2 in this embodiment includes an exhaust body 21 and a blocking component 23. The exhaust body 21 has a second receiving groove AS2 and a second exhaust passage EC2 communicating with the second receiving groove AS2. When the exhaust component 2 is locked to the exhaust seat 1, the second receiving groove AS2 of the exhaust body 21 is located in the first receiving groove AS1.

[0053] Part of the blocking member 23 is housed within the second receiving groove AS2. The blocking member 23 includes a blocking portion 231. When the exhaust body 21 is locked to the exhaust seat 1, the side of the blocking portion 231 abuts against the first exhaust passage EC1, thereby blocking the communication between the first exhaust passage EC1 and the second exhaust passage EC2.

[0054] When the exhaust body 21 is locked to the exhaust seat 1, the side of the blocking part 231 abuts against the first exhaust channel EC1 and the blocking part 23 of the exhaust member 2 moves in the direction toward the ground, so that the blocking part 231 can elastically block the communication between the first exhaust channel EC1 and the second exhaust channel EC2.

[0055] It should be noted that, in this embodiment, the exhaust assembly 100 is installed on the hydraulic braking device 200 (e.g., brake caliper or brake master cylinder). The exhaust body 21 is locked to the exhaust seat 1, and when the blocking member 23 of the exhaust component 2 faces the ground, the blocking member 231 can connect the first exhaust passage EC1 and the second exhaust passage EC2 in the exhaust state (i.e., when the brake caliper or brake master cylinder is activated) (as shown in Figure 10). In the non-exhaust state (i.e., when the brake caliper or brake master cylinder is not activated), the blocking member 231 blocks the connection between the first exhaust passage EC1 and the second exhaust passage EC2 (as shown in Figure 11), thereby achieving the purpose of elastically blocking the connection between the first exhaust passage EC1 and the second exhaust passage EC2. Therefore, the exhaust assembly 100 of this embodiment can also make the blocking member 231 elastically block the connection between the first exhaust passage EC1 and the second exhaust passage EC2 without the need for an elastic element, thus achieving cost savings and weight reduction.

[0056] It should be noted that in the non-exhaust state (i.e., when the brake caliper or brake master cylinder is not activated), the inner walls of the first exhaust passage EC1 and the second exhaust passage EC2 will be coated with oil, and the blocking part 231 will face the ground. This allows the blocking part 231 to move in the direction facing the ground (i.e., due to the influence of gravity) to block the connection between the first exhaust passage EC1 and the second exhaust passage EC2, thereby achieving cost savings (i.e., eliminating the need for elastic elements) and weight reduction.

[0057] [Technical Effects of This Embodiment]

[0058] In summary, the exhaust assembly and hydraulic braking device disclosed in this invention can independently complete the exhaust operation by means of the technical solution that "when the exhaust body is locked loosely to the exhaust seat, the side of the blocking part abuts against the first exhaust channel, so that the blocking part elastically blocks the connection between the first exhaust channel and the second exhaust channel", thereby increasing the efficiency of oil replacement.

[0059] The content disclosed above is only a preferred and feasible embodiment of this invention and is not intended to limit the patent scope of this invention. Therefore, all equivalent technical changes made using the contents of this invention's specification and drawings are included within the patent scope of this invention.

[0060] 100: Exhaust assembly

[0061] 1: Exhaust mount

[0062] 2: Exhaust components

[0063] 21: Exhaust unit

[0064] 22: Elastic element

[0065] 23: Blocking component

[0066] 231: Blocking section

[0067] 232: Connecting part

[0068] 233: Guiding Department

[0069] 24: External Part

[0070] 3: Sealing ring

[0071] 200: Hydraulic braking device

[0072] 4: Braking body

[0073] AS1: First receiving slot

[0074] AS2: Second receiving slot

[0075] EC1: First exhaust passage

[0076] EC2: Second exhaust passage

[0077] EEC: External Exhaust Channel

[0078] IT: Internal thread

[0079] ET: External thread

[0080] R1: First Angle

[0081] R2: Second angle

Claims

1. An exhaust assembly comprising: An exhaust seat has a first receiving groove inside and a first exhaust channel communicating with the bottom surface of the first receiving groove. The system includes an exhaust component that can be locked to the exhaust seat, such that a portion of the exhaust component is located within the first receiving groove; wherein the exhaust component comprises: an exhaust body having a second receiving groove and a second exhaust channel communicating with the second receiving groove; wherein, when the exhaust component is locked to the exhaust seat, the second receiving groove of the exhaust body is located within the first receiving groove; an elastic element received within the second receiving groove; and a blocking member installed on the side of the elastic element adjacent to the first exhaust channel; wherein the blocking member includes a blocking portion, the blocking portion being shaped as a cone or a frustum; wherein, when the exhaust body is locked to the exhaust seat, the side of the blocking portion abuts against the first exhaust channel, thereby blocking the communication between the first exhaust channel and the second exhaust channel; wherein, when the exhaust body is loosened from the exhaust seat, the side of the blocking portion abuts against the first exhaust channel, thereby elastically blocking the communication between the first exhaust channel and the second exhaust channel.

2. The exhaust assembly as described in claim 1, wherein, The blocking member further includes a connecting portion connected to the blocking portion and a guiding portion connected to the connecting portion; wherein the guiding portion passes through the elastic element so that the blocking member can move back and forth along the elastic direction of the elastic element via the guiding portion.

3. The exhaust assembly as described in claim 2, wherein, When the side of the blocking part abuts against the first exhaust channel, a first angle between the side of the blocking part and the bottom surface of the first receiving groove is 45 degrees, and a second angle between the bottom surface of the first receiving groove and the inner sidewall of the first exhaust channel is 90 degrees.

4. The exhaust assembly as claimed in claim 1, wherein, The exhaust body has an external thread, and the exhaust seat has an internal thread corresponding to the external thread, wherein the external thread of the exhaust body engages with the internal thread of the exhaust seat; wherein the exhaust member includes an external portion, the external portion being connected to a side of the exhaust body away from the blocking portion, and the external portion being adjacent to the external thread of the exhaust body; wherein the external portion is capable of discharging a fluid; wherein the fluid includes a gas.

5. The exhaust assembly as claimed in claim 4, wherein, The exhaust assembly further includes a sealing ring fitted onto the exhaust body, and the sealing ring is positioned between the external portion and the external thread of the exhaust body.

6. A hydraulic braking device, comprising: One braking body; The system also includes an exhaust assembly mounted on the brake body. The exhaust assembly comprises: an exhaust seat having a first receiving groove and a first exhaust channel communicating with the bottom surface of the first receiving groove; and an exhaust member capable of being locked to the exhaust seat such that a portion of the exhaust member is located within the first receiving groove; wherein the exhaust member comprises: an exhaust body having a second receiving groove and a second exhaust channel communicating with the second receiving groove; wherein, when the exhaust member is locked to the exhaust seat, the second receiving groove of the exhaust body is located within the first receiving groove; an elastic element received within the second receiving groove; and a blocking member mounted on the side of the elastic element adjacent to the first exhaust channel; wherein the blocking member comprises a blocking portion, the blocking portion being shaped as a cone or a frustum; wherein, when the exhaust body is locked to the exhaust seat, the side of the blocking portion abuts against the first exhaust channel, thereby blocking the second exhaust channel. When the exhaust body is loosened from the exhaust seat, the side of the blocking part abuts against the first exhaust passage, so that the blocking part elastically blocks the second exhaust passage.

7. The hydraulic braking device as described in claim 6, wherein, The blocking member further includes a connecting portion connected to the blocking portion and a guiding portion connected to the connecting portion; wherein the guiding portion passes through the elastic element so that the blocking member can move back and forth along the elastic direction of the elastic element via the guiding portion.

8. The hydraulic braking device as described in claim 7, wherein, When the side of the blocking part abuts against the first exhaust channel, the angle between the side of the blocking part and the bottom surface of the first receiving groove is 45 degrees, and the angle between the bottom surface of the first receiving groove and the inner wall of the first exhaust channel is 90 degrees.

9. The hydraulic braking device as described in claim 6, wherein, The exhaust body has an external thread, and the exhaust seat has an internal thread corresponding to the external thread, the external thread of the exhaust body engaging with the internal thread of the exhaust seat; wherein, the exhaust component includes an external portion, the external portion connecting to a side of the exhaust body away from the blocking portion, and the external portion being adjacent to the external thread of the exhaust body; wherein, the external portion is capable of discharging a fluid; wherein, the fluid includes a gas; wherein, the exhaust assembly further includes a sealing ring sleeved on the exhaust body, and the sealing ring being positioned between the external portion and the external thread of the exhaust body.

10. An exhaust assembly comprising: An exhaust seat has a first receiving groove inside and a first exhaust channel communicating with the bottom surface of the first receiving groove. The system includes an exhaust component that can be locked to the exhaust seat, such that a portion of the exhaust component is located within the first receiving groove; wherein the exhaust component comprises: an exhaust body having a second receiving groove and a second exhaust channel communicating with the second receiving groove; wherein, when the exhaust component is locked to the exhaust seat, the second receiving groove of the exhaust body is located within the first receiving groove; and a blocking component, a portion of which is received within the second receiving groove; wherein the blocking component includes a blocking portion, the blocking portion being shaped as a cone or a frustum; wherein, when the exhaust body is locked to the exhaust seat, the side of the blocking portion abuts against the first exhaust channel, thereby blocking the communication between the first exhaust channel and the second exhaust channel; wherein, when the exhaust body is loosened from the exhaust seat, the side of the blocking portion abuts against the first exhaust channel and the blocking component of the exhaust component moves in a direction toward the ground, thereby elastically blocking the communication between the first exhaust channel and the second exhaust channel.

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