A fluid delivery shaft and clamping support mechanism

Abstract

The utility model discloses a fluid conveying shaft and clamping support mechanism, wherein, fluid conveying shaft rotatable installation on host computer, fluid conveying shaft includes the axle body and gear, the hollow channel that the axle body inside is provided with the fluid from the first end of host computer and provides to the second end, the gear sets up at the first end of axle body and with axle body integrative forming, the gear is used for with the drive mechanism of host computer engages to drive fluid conveying shaft synchronous rotation in conveying fluid at the same time. Fluid conveying shaft gives consideration to fluid conveying and two functions of rotation, through setting up hollow channel in axle body, make host computer provided fluid can directly flow from hollow channel, avoid host computer provided fluid on the outside of the flow path of the leakage, guarantee the airtightness of fluid flow path. In addition, the gear and axle body integrative forming fluid conveying shaft relative to the split design, reduce the number of assembly parts, and the stability of fluid conveying shaft whole is better.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport structures, specifically to a fluid transport shaft and a clamping support mechanism. Background Technology

[0002] Currently, in the cleaning equipment industry, a rotatable shaft is typically used to connect to cleaning components such as brush heads, thereby enabling the brush heads and other cleaning components to rotate and improve cleaning effectiveness. This is usually achieved using gears and a shaft for transmission, with the shaft driving the cleaning components like the brush heads. During this process, the position of the shaft and the connection between the shaft and the gears must be securely fixed to ensure that the power from the gears is transmitted to the shaft with minimal loss. This allows the shaft to efficiently drive the cleaning components like the brush heads at high speeds, and it is also crucial to ensure that the shaft's position does not shift during this process. This guarantees safety, extends the product's lifespan, and ensures effective cleaning during rotation.

[0003] Therefore, how to improve the stability of the rotating shaft to ensure safe use, extend its service life, and ensure a clean operation during rotation has become an urgent technical problem to be solved. Utility Model Content

[0004] Based on the above situation, the main purpose of this utility model is to provide a fluid conveying shaft and a clamping support mechanism to ensure safe use, extend service life, and ensure a clean operation during rotation.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, embodiments of this utility model disclose a fluid conveying shaft, rotatably mounted on a host machine, the fluid conveying shaft comprising:

[0007] The shaft body has a hollow channel inside for the fluid supplied by the host to flow from the first end to the second end;

[0008] A gear is disposed at the first end of the shaft and integrally formed with the shaft. The gear is used to mesh with the drive mechanism of the host machine to drive the fluid conveying shaft to rotate synchronously when the fluid is flowing.

[0009] Optionally, a snap-fit ​​portion is provided on the outer peripheral side of the shaft near the second end, and the snap-fit ​​portion cooperates with the external component to realize a fixed connection between the external component and the fluid conveying shaft.

[0010] Optionally, the snap-fit ​​portion is a groove, and the sidewall of the groove near the second end is inclined toward the second end and has a preset inclination angle.

[0011] Optionally, a limiting portion is also provided axially on the outer peripheral side of the shaft near the second end. The limiting portion is used to limit the external component when the fluid conveying shaft is connected to the external component.

[0012] Optionally, there are two of each of the latching parts and the limiting parts, and the line connecting the two latching parts intersects with the line connecting the two limiting parts.

[0013] Optionally, a limiting platform for cooperating with an external component is also provided on the outer peripheral side of the shaft near the second end to limit the circumferential rotation between the external component and the fluid delivery shaft.

[0014] Optionally, the limiting platform extends axially from the second end to engage with the snap-fit ​​portion on the shaft.

[0015] Secondly, this utility model discloses a clamping support mechanism for fastening to a host machine, the clamping support mechanism comprising:

[0016] As described in any one of the first aspects, the fluid conveying shaft has a hollow channel that covers the outside of the fluid output channel on the host machine. The fluid conveying shaft is provided with a first bearing placement position for cooperating with a first bearing and a second bearing placement position for cooperating with a second bearing, and the first bearing placement position and the second bearing placement position have a preset interval in the axial direction.

[0017] A protective shell is fixedly connected to the main unit. The protective shell covers the outside of the fluid delivery shaft, and the fluid delivery shaft can rotate relative to the protective shell.

[0018] When the clamping support mechanism is connected to the host, the fluid output channel on the host is clamped and fixed in the radial direction by the first bearing placed at the first bearing placement position and the second bearing placed at the second bearing placement position.

[0019] Optionally, the first bearing placement position is located inside the gear, and a first platform is provided at the connection between the first end of the fluid conveying shaft and the gear, the first platform being used to abut against the first bearing placed in the first bearing placement position.

[0020] Optionally, a second platform is provided on the inner side of the shaft, the second platform being used to abut against a second bearing placed in the second bearing placement position, so that the second bearing is fixed between the shaft and the fluid output channel on the host.

[0021] Beneficial effects:

[0022] According to an embodiment of this utility model, a fluid conveying shaft and a clamping support mechanism are disclosed. The fluid conveying shaft is rotatably mounted on a host machine. The fluid conveying shaft includes a shaft body and a gear. A hollow channel is provided inside the shaft body for fluid supplied by the host machine to flow from a first end to a second end. The gear is located at the first end of the shaft body and is integrally formed with the shaft body. The gear meshes with the drive mechanism of the host machine to drive the fluid conveying shaft to rotate synchronously while conveying fluid. By providing a hollow channel inside the shaft body, the fluid supplied by the host machine can flow directly out from the hollow channel, preventing leakage of the fluid supplied by the host machine along the flow path and ensuring the airtightness of the fluid flow path. Furthermore, compared to a separate design, integrally forming the fluid conveying shaft with the gear and shaft body reduces the number of components. There is no power transmission loss between the gear and shaft body, and the overall stability of the integrally formed fluid conveying shaft is better. It also further prevents fluid leakage from the junction of the gear and shaft body, improving the airtightness of the fluid conveying shaft. The fluid conveying shaft in this embodiment combines the functions of fluid conveying and rotation, ensuring safe use, extending service life, and guaranteeing cleaning effect during rotation. Furthermore, the fluid conveying shaft in this embodiment can be used to spray steam during steam cleaning, as well as to spray foam, liquid, and other applications, thus having a wider range of applicability.

[0023] Other beneficial effects of this utility model will be explained in detail through the introduction of specific technical features and technical solutions in the specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by the technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0024] The preferred embodiment of a fluid conveying shaft and clamping support mechanism of the present invention will be described below with reference to the accompanying drawings. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of a fluid transport shaft disclosed in this embodiment;

[0026] Figure 2 This is a schematic diagram of the snap-fit ​​part in a fluid transport shaft disclosed in this embodiment;

[0027] Figure 3 This is a schematic diagram of the limiting part in a fluid conveying shaft disclosed in this embodiment;

[0028] Figure 4 This is a schematic diagram of the radial structure of the fluid transport shaft disclosed in this embodiment;

[0029] Figure 5 This is a schematic diagram of the structure of a clamping and support mechanism disclosed in this embodiment;

[0030] Figure 6This is a partial cross-sectional schematic diagram of a clamping support mechanism disclosed in this embodiment when it is connected with the host machine. Detailed Implementation

[0031] The present invention will now be described based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0032] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0033] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0034] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] To ensure safe use and extend service life, this embodiment discloses a fluid conveying shaft and a clamping support mechanism. Please refer to [reference needed]. Figure 1 , Figure 1 This is a schematic diagram of the structure of a fluid delivery shaft disclosed in this embodiment. The fluid delivery shaft 10 is rotatably mounted on the host 20, which can be a water tank, a host with a steam generating function, a host with a foam generating function, etc., and is not limited here.

[0036] like Figure 1 As shown, the fluid transport shaft 10 includes a shaft body 11 and a gear 12, wherein:

[0037] The shaft 11 has a hollow channel 111 inside, through which fluid supplied by the host 20 flows from the first end 13 to the second end 14. In this embodiment, the shaft 11 is the main body of the fluid conveying shaft 10. The hollow channel 111 allows the fluid supplied by the host 20 to flow within it, from the first end to the second end of the shaft 11. In specific implementation, the first end 13 of the shaft 11 can be connected to the fluid delivery port of the host 20 to receive the fluid supplied by the host 20. The fluid supplied by the host 20 can either flow directly through the hollow channel 111 of the shaft 11, or a transmission pipe can be installed within the hollow channel 111, allowing the fluid to flow within the transmission pipe. It should be noted that the fluid in this application can be steam, liquid, or a gas-liquid mixture such as foam.

[0038] Gear 12 is disposed at the first end 13 of shaft 11 and integrally formed with shaft 11. Gear 12 is used to mesh with the drive mechanism of host 20 to drive fluid conveying shaft 10 to rotate synchronously when fluid is flowing. In this embodiment, gear 12 is disposed at the first end 13 of shaft 11 and integrally formed with shaft 11. Gear 12 can mesh with drive mechanism of host 20, so that when gear 12 meshes with drive mechanism of host 20, drive mechanism of host 20 drives fluid conveying shaft 10 with gear 12 to rotate; and when fluid conveying shaft 10 rotates, fluid provided by host 20 can also flow in hollow channel 111.

[0039] In this embodiment, the fluid conveying shaft 10 serves both fluid conveying and rotation functions. The gear 12 and the shaft body 11 are integrally formed to form the fluid conveying shaft 10. Compared with the split design, the number of components is reduced, the overall stability of the fluid conveying shaft 10 is better, and it can also prevent fluid from leaking out from the joint between the gear 12 and the shaft body 11, thereby improving the sealing effect of the fluid conveying shaft 10.

[0040] In an optional embodiment, please refer to Figure 2 , Figure 2 This is a schematic diagram of the snap-fit ​​part in a fluid transport shaft disclosed in this embodiment. Figure 2As shown, a snap-fit ​​portion 112 is provided on the outer periphery of the shaft 11 near the second end 14. The snap-fit ​​portion 112 is used to snap with an external component to achieve a fixed connection between the fluid conveying shaft 10 and the external component. In this embodiment, the external component can be a brush head, a nozzle, or other types of components. The snap-fit ​​portion 112 is provided on the outer periphery of the shaft 11 near the second end 14. When the external component is connected to the fluid conveying shaft 10, the external component can snap with the snap-fit ​​portion 112, thereby achieving a fixed connection between the external component and the snap-fit ​​portion 112. In specific implementations, the snap-fit ​​portion 112 can be a groove. When the snap-fit ​​portion 112 is a groove, a corresponding protrusion that mates with the snap-fit ​​portion 112 can be provided on the external component.

[0041] In optional embodiments, such as Figure 2 As shown, the snap-fit ​​portion 112 is a groove, and the side wall 1121 of the groove near the second end 14 has a preset inclination angle. In this embodiment, the snap-fit ​​portion 112 is a groove provided on the outer periphery of the shaft 11. The groove has two side walls, wherein the side wall 1121 of the groove near the second end 14 of the shaft 11 is inclined toward the second end 14 and has a preset inclination angle. In specific implementation, since the snap-fit ​​portion 112 is used to fix the fluid conveying shaft 10 to the external component, the side wall 1121 is set as an inclined slope. When it is necessary to disassemble or replace the external component, the inclined slope of the side wall 1121 can facilitate the protrusion of the external component to be disassembled from the groove of the snap-fit ​​portion 112, thereby facilitating disassembly and replacement.

[0042] In addition, the other side wall of the groove can be set perpendicular to the bottom surface of the groove, thereby providing a better stopping effect for the external component. When connecting the external component, the external component can be firmly limited in the groove and will not move towards the first end 13 of the shaft 11, thereby improving the connection stability between the external component and the fluid conveying shaft 10.

[0043] In an optional embodiment, please refer to Figure 3 , Figure 3 This is a schematic diagram of the limiting part in a fluid transport shaft disclosed in this embodiment. Figure 3As shown, a limiting part 113 is also provided axially on the outer peripheral side of the shaft 11 near the second end 14. The limiting part 113 is used to limit the external component when it is connected to the fluid conveying shaft 10. In this embodiment, after the external component is fixedly connected to the shaft 11, there is a certain gap between the external component and the outer wall of the shaft 11. Generally speaking, the external component will extend a certain distance axially beyond the second end 14 of the shaft 11. This gap between the shaft 11 and the external component will affect the connection stability between the external component and the shaft 11. Therefore, the limiting part 113 is provided on the shaft 11. The axially provided limiting part 113 is used to limit the shaking between the external component and the shaft 11, thereby ensuring the connection stability between the external component and the shaft 11.

[0044] In an optional embodiment, please refer to Figure 4 , Figure 4 This is a schematic diagram of the radial structure of the fluid transport shaft disclosed in this embodiment. Figure 4 As shown, there are two locking portions 112 and two limiting portions 113, and the line connecting the two locking portions 112 intersects the line connecting the two limiting portions 113. In this embodiment, there are two locking portions 112 and two limiting portions 113, and the line connecting the two locking portions 112 in the radial direction of the shaft 11 (i.e., Figure 4 The dashed line A1 in the figure intersects with the line connecting the two limiting parts 113 in the radial direction of the shaft 11 (that is, Figure 4 (as shown by the dotted line B1 in the diagram), meaning that two engaging portions 112 and two limiting portions 113 are alternately arranged on the outer surface of the shaft 11. Preferably, the two engaging portions 112 are arranged opposite each other, and the limiting portions 113 are arranged opposite each other, that is, the line connecting the two engaging portions 112 in the radial direction of the shaft 11 is perpendicular to the line connecting the two limiting portions 113 in the radial direction of the shaft 11 (e.g., the dashed line B1 in the diagram). Figure 4 As shown in the diagram, dashed line A1 intersects dashed line B1 perpendicularly.

[0045] In an optional embodiment, a limiting platform 114 for cooperating with an external component is also provided on the outer periphery of the shaft 11 near the second end 14, to restrict circumferential rotation between the external component and the fluid conveying shaft 10. In this embodiment, when the external component is fitted and fixed on the outer periphery of the second end 14 of the shaft 11, the limiting platform 114 can limit the circumferential rotation between the external component and the shaft 11, thereby preventing mutual rotation between the external component and the shaft 11. That is, the external component can only rotate in the same direction as the shaft 11. In specific implementation, there are two limiting platforms 114, and the two limiting platforms 114 can be arranged opposite to each other.

[0046] In optional embodiments, such as Figure 2As shown, the limiting platform 114 extends axially from the second end 14 to engage with the snap-fit ​​portion 112 on the shaft 11. In this embodiment, the limiting platform 114 can extend axially a predetermined distance from the second end 14 of the shaft 11 until it engages with the snap-fit ​​portion 112 on the shaft 11. In specific implementation, in addition to limiting the circumferential rotation between the shaft 11 and the external component, the limiting platform 114, due to its height being less than the diameter of the shaft 11 and the snap-fit ​​portion 112 being a groove, connects the limiting platform 114 to the snap-fit ​​portion 112. When the external component is connected to the shaft 11, the protrusion inside the external component can also smoothly engage with the snap-fit ​​portion 112 through the relatively wide connection space of the limiting platform 114, thus improving the convenience of connection.

[0047] This utility model embodiment also discloses a clamping support mechanism, please refer to... Figure 5 , Figure 5 This is a schematic diagram of the structure of a clamping and support mechanism disclosed in this embodiment. Figure 6 This is a partial cross-sectional schematic diagram of a clamping support mechanism disclosed in this embodiment when it is connected with the host machine.

[0048] like Figure 5 and Figure 6 As shown, the clamping support mechanism 100 includes the fluid delivery shaft 10 and the protective shell 30 as described above. The clamping support mechanism 100 is used to fasten to the host 20 to securely and rotatably fix the fluid delivery shaft 10 to the host 20. The hollow channel 111 of the fluid delivery shaft 10 covers the outside of the fluid output channel 21 of the host 20. At this time, the host 20 can deliver fluid to the outside through the fluid output channel 21. The fluid delivery shaft 10 can rotate synchronously under the drive of the host 20 when fluid is flowing.

[0049] The inner wall of the fluid delivery shaft 10 is also provided with a first bearing placement position 15 for cooperating with the first bearing and a second bearing placement position 16 for cooperating with the second bearing. The first bearing placement position 15 and the second bearing placement position 16 are spaced apart in the axial direction by a preset distance. In this embodiment, when the hollow channel 111 of the fluid delivery shaft 10 is fitted over the outside of the fluid output channel 21 of the host 20, the first bearing located in the first bearing placement position 15 is fitted over the outside of the fluid output channel 21 of the host 20, thereby supporting the fluid delivery shaft 10 and using the radial clamping force to clamp the fluid output channel 21 of the host 20, thereby improving the stability of the fluid output channel 21 during the operation of the host 20. In addition, the first bearing located between the fluid delivery shaft 10 and the fluid output channel 21 also enables the fluid delivery shaft 10 to rotate more smoothly relative to the fluid output channel 21.

[0050] A second bearing placement position 16 is provided at a certain axial interval. Based on the first bearing being sleeved on the outside of the fluid output channel 21 of the main unit 20, the second bearing, placed within the second bearing placement position 16, is also sleeved on the outside of the fluid output channel 21 of the main unit 20. Furthermore, the first and second bearings are respectively sleeved at different axial positions on the outside of the fluid output channel 21, allowing for multi-position fixation of the relatively long fluid output channel 21. This further improves the stability of the fluid output channel 21 during operation of the main unit 20 and the smoothness of rotation of the fluid conveying shaft 10 relative to the fluid output channel 21. Preferably, the first bearing placement position 15 can be located at the head end of the fluid output channel 21, while the second bearing placement position 16 can be located in the middle section of the fluid output channel 21, thereby improving the fixing effect.

[0051] Since the fluid delivery shaft 10 can rotate relative to the host 20, when the fluid delivery shaft 10 is driven by the host 20, its position may shift due to the driving force. This can lead to increased friction and uneven force on the contact surface between the fluid delivery shaft 10 and the fluid output channel 21 of the host 20. Therefore, by setting a first bearing and a second bearing between the fluid delivery shaft 10 and the fluid output channel 21 of the host 20, the fluid delivery shaft 10 can be limited by the first bearing and the second bearing, reducing the positional shift of the fluid delivery shaft 10 caused by the driving force. It can also reduce the friction between the fluid delivery shaft 10 and the fluid output channel 21 of the host 20 when the fluid delivery shaft 10 rotates, thereby ensuring the accuracy and lubrication of the fit between the fluid delivery shaft 10 and the fluid output channel 21 of the host 20.

[0052] The protective shell 30 is fixedly connected to the main unit 20. The protective shell 30 covers the outside of the fluid delivery shaft 10, and the fluid delivery shaft 10 can rotate relative to the protective shell 30. In this embodiment, the rotation of the fluid delivery shaft 10 may cause injury to the operator. By covering the outside of the fluid delivery shaft 10 with the protective shell 30, the structure of the protective shell 30 can protect both the structure of the fluid delivery shaft 10 and the operator, preventing accidental injury to the operator from the rotating fluid delivery shaft 10. It is understood that... Figure 5 The shape of the protective shell 30 shown is merely exemplary. In actual implementation, the protective shell 30 may have different shapes depending on the shape of the host machine 20 or the fluid transport shaft 10 to be used.

[0053] In optional embodiments, such as Figure 6As shown, the inner sidewall of gear 12 and the end face of the first end 13 of shaft 11 form a first platform 112. A first bearing placement position 15 is disposed on the inner sidewall of gear 12, and the first platform 112 is used to abut against the first bearing placed in the first bearing placement position 15. In this embodiment, the first platform 112 is formed at the portion where gear 12 and the first end 13 of shaft 11 are connected, as shown... Figure 6 As shown, a placement space is formed between the first platform 112, the inner wall of the gear 12, and the outer wall of the fluid output channel 21 of the host 20. This placement space is the first bearing placement position 15. When the first bearing is located in the first bearing placement position 15, the first bearing abuts against the first platform 112, thereby limiting the first bearing and stably placing it inside the gear 12. This ensures the accuracy and lubrication of the fit between the fluid conveying shaft 10 and the host 20. In specific implementation, the first bearing placement position 15 is located on the inner wall of the gear 12. When the gear 12 meshes with the drive mechanism of the host 20, it ensures the drive clearance between the gear 12 and the host 20, further improving the accuracy of the fit between the gear 12 and the drive mechanism of the host 20. It also avoids irregular wear of the fluid conveying shaft 10 caused by the squeezing between the drive mechanism of the host 20 and the gear 12 during operation, thus extending its service life.

[0054] In an optional embodiment, a second platform 113 is further provided on the inner side of the shaft 11. The second platform 113 is used to abut against the second bearing placed in the second bearing placement position 16 to fix the second bearing between the shaft 11 and the fluid output channel 21 on the host 20. In this embodiment, another placement space is formed between the second platform 113, the inner wall of the shaft 11, and the outer wall of the fluid output channel 21 of the host 20. This placement space is the second bearing placement position 16. When the second bearing is located in the second bearing placement position 16, the second bearing abuts against the second platform 113, thereby using the second platform 113 and the second bearing placement position 16 to limit the second bearing and stably place the second bearing between the shaft 11 and the fluid output channel 21 to ensure the accuracy and lubrication of the fit between the fluid conveying shaft 10 and the host 20.

[0055] According to an embodiment of this utility model, a fluid conveying shaft and a clamping support mechanism are disclosed. The fluid conveying shaft is rotatably mounted on a host machine. The fluid conveying shaft includes a shaft body and a gear. A hollow channel is provided inside the shaft body for fluid supplied by the host machine to flow from a first end to a second end. The gear is located at the first end of the shaft body and is integrally formed with the shaft body. The gear meshes with the drive mechanism of the host machine to drive the fluid conveying shaft to rotate synchronously while conveying fluid. By providing a hollow channel inside the shaft body, the fluid supplied by the host machine can flow directly out from the hollow channel, preventing leakage of the fluid supplied by the host machine along the flow path and ensuring the airtightness of the fluid flow path. Furthermore, compared to a separate design, integrally forming the fluid conveying shaft with the gear and shaft body reduces the number of components. There is no power transmission loss between the gear and shaft body, and the overall stability of the integrally formed fluid conveying shaft is better. It also further prevents fluid leakage from the junction of the gear and shaft body, improving the airtightness of the fluid conveying shaft. The fluid conveying shaft in this embodiment combines the functions of fluid conveying and rotation, ensuring safe use, extending service life, and guaranteeing cleaning effect during rotation. Furthermore, the fluid conveying shaft in this embodiment can be used to spray steam during steam cleaning, as well as to spray foam, liquid, and other applications, thus having a wider range of applicability.

[0056] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0057] It should be understood that the above-described embodiments are merely exemplary and not restrictive. Without departing from the basic principles of this utility model, any obvious or equivalent modifications or substitutions made by those skilled in the art regarding the above details will be included within the scope of the claims of this utility model.

Claims

1. A fluid transport shaft, characterized in that, Rotatably mounted on the host (20), the fluid delivery shaft (10) includes: The shaft (11) has a hollow channel (111) inside which the fluid supplied by the host (20) flows from the first end (13) to the second end (14); A gear (12) is disposed at the first end (13) of the shaft (11) and integrally formed with the shaft (11). The gear (12) is used to mesh with the drive mechanism of the host (20) to drive the fluid conveying shaft (10) to rotate synchronously when the fluid is flowing.

2. The fluid conveying shaft according to claim 1, characterized in that, A snap-fit ​​part (112) is provided on the outer periphery of the shaft (11) near the second end (14). The snap-fit ​​part (112) cooperates with the external component to realize the fixed connection between the external component and the fluid conveying shaft (10).

3. The fluid conveying shaft according to claim 2, characterized in that, The snap-fit ​​part (112) is a groove, and the side wall (1121) of the groove near the second end (14) is inclined toward the second end (14) and has a preset inclination angle.

4. The fluid conveying shaft according to claim 2, characterized in that, A limiting part (113) is also provided axially on the outer periphery of the shaft (11) near the second end (14). The limiting part (113) is used to limit the external component when the fluid conveying shaft (10) is connected to the external component.

5. The fluid conveying shaft according to claim 4, characterized in that, The number of the latching part (112) and the limiting part (113) are both two, and the line connecting the two latching parts (112) intersects the line connecting the two limiting parts (113).

6. The fluid conveying shaft according to claim 1, characterized in that, A limiting platform (114) for cooperating with an external component is also provided on the outer periphery of the shaft (11) near the second end (14) to restrict the circumferential rotation between the external component and the fluid transport shaft (10).

7. The fluid conveying shaft according to claim 6, characterized in that, The limiting platform (114) extends axially from the second end (14) to connect with the snap-fit ​​portion (112) on the shaft (11).

8. A clamping and supporting mechanism, characterized in that, For fastening connection with the host (20), the clamping support mechanism includes: The fluid conveying shaft (10) as described in any one of claims 1 to 7, wherein the hollow channel (111) of the fluid conveying shaft (10) is sleeved on the outside of the fluid output channel (21) on the host (20), and the fluid conveying shaft (10) is provided with a first bearing placement position (15) for cooperating with a first bearing and a second bearing placement position (16) for cooperating with a second bearing, and the first bearing placement position (15) and the second bearing placement position (16) have a preset interval in the axial direction; A protective shell (30) is fixedly connected to the host (20). The protective shell (30) covers the outside of the fluid delivery shaft (10) and the fluid delivery shaft (10) can rotate relative to the protective shell (30). When the clamping support mechanism (100) is connected to the host (20), the fluid output channel (21) on the host (20) is clamped and fixed in the radial direction by the first bearing placed at the first bearing placement position (15) and the second bearing placed at the second bearing placement position (16).

9. The clamping and supporting mechanism according to claim 8, characterized in that, The first bearing placement position (15) is located inside the gear (12), and a first platform (112) is provided at the connection between the first end (13) of the shaft (11) and the gear (12). The first platform (112) is used to abut against the first bearing placed in the first bearing placement position (15).

10. The clamping and supporting mechanism according to claim 8, characterized in that, The inner side of the shaft (11) is also provided with a second platform (113), which is used to abut against the second bearing placed in the second bearing placement position (16) so that the second bearing is fixed between the shaft (11) and the fluid output channel (21) on the host (20).

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