Fluid transport mechanism and device based on self-driving cavity

Abstract

The present invention provides a fluid transport mechanism and device based on a self-driven cavity, including a telescopic chamber, wherein the telescopic chamber is provided with a fluid inlet and a fluid outlet, and when the fluid enters the telescopic chamber through the fluid inlet, the volume of the telescopic chamber increases, thereby generating a driving force for driving the telescopic chamber to retract, wherein the driving force comes from the telescopic chamber itself; and / or the driving force comes from a force-applying mechanism connected to the telescopic chamber. In the present invention, the telescopic chamber adopts a bellows or a deformable material embedded with an elastic medium, so that the bearing pressure is large during the expansion of the telescopic chamber, which greatly reduces the risk of the telescopic chamber bursting, improves product quality, and prolongs the service life of the equipment. In addition, elastic parts can be added inside or outside the telescopic chamber to increase the self-ejection pressure of the fluid inside the telescopic chamber, thereby improving the practicality of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of storage equipment, and in particular to a fluid transport mechanism and device based on a self-driving cavity. Background Art

[0002] The rubber bladder has a certain elasticity. The rebound force of the rubber bladder can be used to store liquid and its own rebound force can be used to squeeze out the fluid, thereby realizing the unpowered self-flow or automatic injection of the fluid. It is a simple and effective component for accelerating fluid transportation and producing injection effects, and has a simple structure and stable pressure.

[0003] However, in actual use, when the rubber bladder is subjected to external high-pressure fluid, the fluid pressure will be greater than the elastic force of the bladder itself, and it will swell or even burst, which will affect the life of the product and cause safety problems.

[0004] Patent document CN211320220U discloses a bladder-type expansion water tank, which includes an outer shell, a bladder body, at least one degassing port and a water outlet. The bladder body is arranged in the outer shell and can expand or shrink in the outer shell. The degassing port is arranged at the upper part of the outer shell, the degassing port passes through the outer shell and is connected to the bladder body. The water outlet is arranged at the bottom of the outer shell, the water outlet passes through the outer shell and is connected to the bladder body. The bladder-type expansion water tank is connected to the heat dissipation component of the fuel cell system through the degassing port and the water outlet. The coolant is stored in the bladder body. The bladder body expands or shrinks according to the temperature and pressure of the heat dissipation component. However, this bladder body often bursts due to excessive expansion or its elasticity is weakened, affecting the overall effect of the equipment. Summary of the invention

[0005] In view of the defects in the prior art, an object of the present invention is to provide a fluid transport mechanism and device based on a self-driving cavity.

[0006] According to the present invention, a fluid transport mechanism based on a self-driving cavity includes a telescopic chamber, wherein the telescopic chamber is provided with a fluid inlet and a fluid outlet;

[0007] When fluid enters the telescopic chamber through the fluid inlet, the volume of the telescopic chamber increases, thereby generating a driving force to drive the telescopic chamber to retract, wherein the driving force comes from the telescopic chamber itself; and / or:

[0008] The driving force comes from a force-applying mechanism connected to the telescopic chamber.

[0009] Preferably, when the driving force comes from the telescopic chamber itself, the telescopic chamber adopts any of the following structures:

[0010] - bellows;

[0011] - elastic tube;

[0012] - Made of a deformable material embedded in a second elastic structure, the deformable material can be stretched and retracted.

[0013] Preferably, the second elastic structure is an elastic structure.

[0014] Preferably, when the telescopic chamber adopts an elastic tube, a supporting shell is installed outside the telescopic chamber, and a first elastic structure is arranged between the supporting shell and the telescopic chamber.

[0015] Preferably, the elastic tube is made of a rubber tube, and the first elastic structure is made of a sponge material.

[0016] Preferably, the force-applying mechanism is installed inside or outside the telescopic chamber, and the force-applying mechanism can be driven by a driving mechanism or driven by its own driving force, wherein when driven by its own driving force, the force-applying mechanism includes an elastic member;

[0017] When the force-applying mechanism is installed inside the telescopic chamber, two ends of the elastic member are respectively connected to two ends of the telescopic chamber;

[0018] When the force applying mechanism is installed outside the telescopic chamber, the force applying mechanism adopts any of the following structures:

[0019] - the elastic member is arranged in the circumference of the telescopic chamber and two ends of the elastic member are respectively connected to two ends of the telescopic chamber;

[0020] -The elastic member is installed at one or both ends of the telescopic chamber, a bracket is provided outside the telescopic chamber, one end of the elastic member is connected to the bracket, and the other end of the elastic member is connected to the end of the telescopic chamber. When the telescopic chamber is extended, the elastic member is squeezed and compressed to shorten.

[0021] Preferably, the number of the fluid outlets is one or more.

[0022] Preferably, it further comprises a detection device, which is directly or indirectly mounted on the telescopic chamber, and the detection device can obtain the volume of the fluid inside the telescopic chamber through the change of the volume of the telescopic chamber.

[0023] Preferably, the number of the detection devices is one or more, wherein the installation positions of the detection devices can be arranged according to actual detection requirements.

[0024] The present invention provides a fluid conveying device, which adopts the fluid conveying mechanism based on the self-driving cavity.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The telescopic chamber of the present invention adopts a bellows or a deformable material embedded with an elastic medium. The pressure is large during the expansion of the telescopic chamber, which greatly reduces the risk of the telescopic chamber bursting, improves product quality, and extends the service life of the equipment.

[0027] 2. In the present invention, elastic parts are added inside or outside the telescopic chamber, which increases the self-spraying pressure of the fluid inside the telescopic chamber and improves the practicability of the device.

[0028] 3. When the elastic tube is used in the present invention, a sponge and a supporting shell are added to the outside to balance the squeezing force inside and outside the elastic tube without bursting, or not easily bursting. In addition, the sponge material also plays a role in preventing damage due to impact and vibration, greatly improving the service life of the equipment.

[0029] 4. The number of fluid outlets in the present invention can be flexibly selected according to the actual application scenario. When the volume of the telescopic chamber is small, it can be used as a portable fluid ejection mechanism; when the telescopic chamber is designed as a large-volume device, it can be installed in different parts by connecting multiple outlets on the device and used by different users, and it is easy to operate and use. Therefore, the present invention has a flexible structure and a wide range of applications.

[0030] 5. The installation position of the detection device in the present invention can be arranged according to the actual detection needs. When the detection device adopts a strain gauge sensor, it can judge the volume of the fluid in the telescopic chamber according to the deformation size of the telescopic chamber, and then obtain the flow rate and flow velocity flowing into or out of the telescopic chamber, and finally realize intelligent detection. The detection data obtained by the strain gauge sensor can be interlocked with the fluid filling equipment connected to the fluid inlet to realize that when the fluid inside the telescopic chamber reaches the lower limit value, the fluid filling equipment is started to fill the telescopic chamber with fluid, and when the fluid inside the telescopic chamber reaches the upper limit value, the filling of fluid into the telescopic chamber is stopped, thereby realizing intelligent control of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0032] Figure 1 It is a schematic diagram of the structure when the telescopic chamber adopts a bellows and is not filled with fluid;

[0033] Figure 2 It is a schematic diagram of the structure when the telescopic chamber adopts a bellows and is filled with fluid;

[0034] Figure 3 It is a schematic diagram of the structure when the elastic member is installed inside the bellows and is not filled with fluid;

[0035] Figure 4 It is a schematic diagram of the structure when the elastic member is installed inside the bellows and filled with fluid;

[0036] Figure 5 It is a structural schematic diagram when the telescopic chamber is not expanded and a first elastic structure is arranged outside;

[0037] Figure 6 It is a structural schematic diagram when the telescopic chamber is enlarged and a first elastic structure is arranged outside;

[0038] Figure 7 It is a structural schematic diagram when the second elastic structure is embedded in the telescopic chamber and the interior is not filled with fluid;

[0039] Figure 8 It is a structural schematic diagram when the second elastic structure is embedded in the telescopic chamber and the interior is filled with fluid;

[0040] Fig. 9 It is a structural schematic diagram of a telescopic chamber in which a second elastic structure is embedded and no fluid is filled inside and an elastic member is provided;

[0041] Fig.10 It is a structural schematic diagram of a telescopic chamber in which a second elastic structure is embedded and filled with fluid and an elastic member is provided;

[0042] Fig.11 It is a structural schematic diagram when the elastic member is arranged along the circumference of the telescopic chamber;

[0043] Fig.12 It is a schematic diagram of the structure when the elastic member is arranged along the end of the telescopic chamber;

[0044] Fig.13 It is a structural schematic diagram when a first elastic structure and a moving body are arranged outside the telescopic chamber.

[0045] The figure shows:

[0046] Telescopic chamber 1 Detection device 5 First elastic structure 9

[0047] Force applying mechanism 2 Support housing 6 Second elastic structure 10

[0048] Fluid inlet 3 Elastic member 7 Moving body 11

[0049] Fluid outlet 4 Bracket 8 DETAILED DESCRIPTION

[0050] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0051] The present invention provides a fluid transport mechanism based on a self-driving cavity, such as Figures 1 to 13 As shown, the telescopic chamber 1 includes a fluid inlet 3 and a fluid outlet 4. When the fluid enters the telescopic chamber 1 through the fluid inlet 3, the volume of the telescopic chamber 1 increases, thereby generating a driving force for driving the telescopic chamber 1 to retract. The driving force comes from the telescopic chamber 1 itself, or the driving force comes from a force-applying mechanism 2 connected to the telescopic chamber 1, or the driving force comes from a combination of the telescopic chamber 1 itself and an external force-applying mechanism 2.

[0052] It should be noted that the fluid entering the fluid inlet 3 is transported into the interior of the telescopic chamber 1 under a certain pressure. The specific pressure of the fluid entering should be set according to the material of the telescopic chamber 1 or the pressure resistance limit of the telescopic chamber 1 itself to ensure that the telescopic chamber 1 is not damaged and to achieve the purpose of fluid storage and transportation.

[0053] Specifically, when the driving force comes from the telescopic chamber 1 itself, the telescopic chamber 1 can adopt a variety of structures, such as a bellows. Figure 1 As shown in the figure, it is a schematic diagram of the structure when the telescopic chamber 1 adopts a bellows and is not filled with fluid. When the telescopic chamber 1 is filled with fluid, it becomes as follows Figure 2 In the structure shown, the bellows is stretched by the squeezing force of the internal fluid, and then the telescopic chamber 1 itself has a retraction force, and this retraction force becomes a force for squeezing the internal fluid. Therefore, when the valve on the fluid outlet 4 is opened, the fluid inside the telescopic chamber 1 will flow out due to the retraction force of the bellows itself.

[0054] Furthermore, on the basis of the retraction force of the telescopic chamber 1 itself, in order to increase the pressure of the internal fluid when it flows out from the fluid outlet 4, a force-applying mechanism 2 can be added inside the telescopic chamber 1. The force-applying mechanism 2 is installed inside or outside the telescopic chamber 1. The force-applying mechanism 2 in the present invention can be driven by a driving mechanism or driven by its own driving force, that is, the force-applying mechanism (2) can apply force to the telescopic chamber 1 by the restoring force generated by its own deformation, or it can apply driving force to the telescopic chamber 1 by means of external force, wherein the means of using external force include various forms, such as the driving mechanism using a motor drive, magnetic drive, electromagnetic force drive, phase change material drive; another example is a cylinder drive driven by a fluid (cylinder, oil cylinder, etc.), or other energy drive methods that can be realized. When driven by its own driving force, the force-applying mechanism 2 includes an elastic member 7, such as the elastic member 7 using a spring, such as Figure 3 , Figure 4 The figures shown are schematic diagrams of the elastic member 7 installed in the telescopic chamber 1 when the chamber is not filled with fluid and when the chamber is filled with fluid. As the fluid in the telescopic chamber 1 is filled, the spring is gradually stretched in length and tends to elastically retract. Therefore, when the fluid outlet 4 is opened, the retraction force of the spring itself can also drive the fluid to flow out.

[0055] It should be noted that, in actual use, whether to apply force by driving through a driving mechanism or by its own driving force should be selected according to the specific application scenario. When the fluid inside the telescopic chamber 1 requires a large pressure and the driving force of the telescopic chamber 1 itself cannot meet it, it can be considered to be driven by an external driving mechanism, including applying thrust, pulling force and force that can achieve the application effect. It can be seen that the present invention is flexible in design and has a wide range of applications.

[0056] Specifically, the telescopic chamber 1 may also adopt an elastic tube. When the telescopic chamber 1 adopts an elastic tube, a support shell 6 is installed outside the telescopic chamber 1, and a first elastic structure 9 is provided between the support shell 6 and the telescopic chamber 1. Figure 5 , Figure 6 As shown, since elastic tubes such as rubber tubes are often not wear-resistant and may even rupture due to expansion, a first elastic structure 9 is arranged on the outside of the elastic tube, wherein the first elastic structure 9 is preferably made of sponge material, and the sponge material is a wrapping protective layer of the elastic tube, which contacts with hard substances during the expansion process. When the fluid is added to the elastic tube and expands, the sponge material is squeezed to generate a reverse wrapping force on the elastic tube, and the support shell 6 acts on the outer layer of the sponge to provide a final reverse restraining force to resist the rupture of the rubber tube, so that the extrusion force inside and outside the elastic tube is balanced without bursting, or not easy to burst. In addition, the sponge material also plays a role in preventing impact and vibration damage.

[0057] Furthermore, in a variation, Fig.13 As shown, a moving body 11 is further arranged between the supporting shell 6 and the first elastic structure 9. When the first elastic structure 9 is squeezed and deformed by the telescopic chamber 1, the moving body 11 can be driven to move. When the moving body 11 moves, it can squeeze the sensor arranged on one side as a whole, such as a strain gauge. The force applied by the moving body 11 is sensed by the strain gauge, and the degree of deformation of the telescopic chamber 1 can be obtained, so as to judge the volume of the fluid inside the telescopic chamber 1. The above moving body 11 adopts a plate-like structure, wherein the moving body 11 can also be made of a bendable material. The first elastic structure 9 squeezes the moving body 11 to deform the moving body 11, so as to achieve bending, squeezing and deformation of the strain gauge, and also achieve a sensing effect.

[0058] Specifically, the telescopic chamber 1 can also be made of a deformable material embedded in the second elastic structure 10, the deformable material can be stretched and retracted, and plays a sealing role, and the second elastic structure 10 plays a tensile role. The second elastic structure 10 adopts an elastic structure, wherein the elastic structure can be made of an elastic material or a non-elastic material, such as a spring. In a preferred example, the deformable material is a high-strength and high-reliability material, which has no elasticity. The telescopic chamber 1 is initially flattened by the second elastic structure 10, and when the high-pressure fluid enters, it overcomes the elastic force of the second elastic structure 10 and expands, but will not burst. For example, the deformable material adopts a carbon fiber composite material; for another example, the deformable material adopts a metal fiber composite material.

[0059] Furthermore, in a variation, the deformable material is an elastic body capable of elastic deformation, such as elastic rubber, wherein the second elastic structure 10 is preferably a spring, and the spring is embedded in the elastic rubber to make the elastic force of the telescopic chamber 1 itself greater. Figure 7 , Figure 8 As shown, when the telescopic chamber 1 is filled with fluid, the volume of the telescopic chamber 1 expands. When the valve of the fluid outlet 4 is opened, the telescopic chamber 1 has a greater retraction force than when there is no embedded spring, and the service life of the telescopic chamber 1 can be increased.

[0060] In actual use, the force applying mechanism 2 has a variety of structural arrangements. When the force applying mechanism 2 is installed inside the telescopic chamber 1, the two ends of the elastic member 7 are respectively connected to the two ends of the telescopic chamber 1. Figure 2 , Figure 3 , Fig. 9 , Fig.10 As shown, the pressure of the fluid stored in the telescopic chamber 1 is increased by the elastic member 7 disposed inside, so that the present invention can be applied to more scenarios.

[0061] Furthermore, when the force applying mechanism 2 is installed outside the telescopic chamber 1, the structure of the force applying mechanism 2 can be arranged in a variety of ways. For example, the elastic member 7 is arranged in the circumference of the telescopic chamber 1 and the two ends of the elastic member 7 are respectively connected to the two ends of the telescopic chamber 1. For example, the elastic member 7 is a spring. Fig.11 As shown, in actual applications, the number of springs can be set to one, or multiple springs can be set along the circumference of the telescopic chamber 1. The springs can be arranged uniformly or non-uniformly along the circumference of the telescopic chamber 1, and can be flexibly arranged according to specific application scenarios.

[0062] Furthermore, in another arrangement form of the force applying mechanism 2, the elastic member 7 is installed at one end or both ends of the telescopic chamber 1. Taking the elastic member 7 installed at one end of the telescopic chamber 1 as an example, the elastic member 7 is a spring, such as Fig.12 As shown, a bracket 8 is provided outside the telescopic chamber 1, one end of the spring is connected to the bracket 8, and the other end of the spring is connected to the end of the telescopic chamber 1. When the telescopic chamber 1 is filled with fluid and stretched, the elastic member 7 is squeezed to compress and shorten the elastic member 7. When the fluid outlet 4 is opened, the fluid in the telescopic chamber 1 is squeezed out under the action of the restoring force of the multiple compressed and shortened springs.

[0063] In actual use, the number of fluid inlets 3 can be different according to the needs of filling fluid. The number of fluid outlets 4 can be set to one or more. When the volume of the telescopic chamber 1 is small, it can be used as a portable fluid spraying mechanism. At this time, one fluid outlet 4 can be used, such as a daily disinfectant bottle, which can be used portable after filling and automatically spray disinfectant when the outlet is opened.

[0064] Furthermore, the telescopic chamber 1 can also be designed as a large-volume device, so that multiple fluid outlets 4 can be connected to be installed in different locations for use by different users. For example, a large disinfectant cylinder is placed in the toilet, and multiple branch pipes are connected from the disinfectant cylinder to be installed next to different washbasins. That is, one disinfectant cylinder can be used by different users at the same time, and when filling the disinfectant, it only needs to be filled into one disinfectant cylinder, which is convenient to operate and use.

[0065] The present invention also provides a detection device 5, which is directly or indirectly mounted on the telescopic chamber 1. Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 To be directly mounted on the telescopic chamber 1, as Fig.13The detection device 5 is indirectly installed on the telescopic chamber 1, and the number of the detection device 5 is one or more, wherein the installation position of the detection device 5 can be arranged according to the actual detection needs. In a preferred example, the detection device 5 uses a strain gauge sensor, which can determine the volume of the fluid in the telescopic chamber 1 according to the deformation size of the telescopic chamber 1, and can realize intelligent detection. In actual applications, multiple strain gauge sensors can be installed, and multiple strain gauge sensors are installed in different parts of the telescopic chamber 1 to realize multi-part detection, which can achieve the effect of mutual verification of detection data and improve detection accuracy.

[0066] Furthermore, the detection data obtained by the strain gauge sensor can be interlocked with the fluid filling equipment connected to the fluid inlet 3 and interlocked controlled. When the fluid inside the telescopic chamber 1 obtained by the strain gauge sensor reaches the lower limit value, the fluid filling equipment is started to fill the telescopic chamber 1 with fluid. When the fluid inside the telescopic chamber 1 obtained by the strain gauge sensor reaches the upper limit value, the filling of fluid into the telescopic chamber 1 is stopped, thereby realizing intelligent control of the entire equipment.

[0067] The present invention also provides a fluid conveying device, which adopts the fluid conveying mechanism based on the self-driving cavity. The device can store and release the fluid by adopting the fluid conveying mechanism based on the self-driving cavity to meet actual needs.

[0068] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0069] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A fluid transport mechanism based on a self-driving cavity, characterized in that: It comprises a telescopic chamber (1), wherein the telescopic chamber (1) is provided with a fluid inlet (3) and a fluid outlet (4); When fluid enters the telescopic chamber (1) through the fluid inlet (3), the volume of the telescopic chamber (1) increases, thereby generating a driving force that drives the telescopic chamber (1) to retract, wherein the driving force comes from the telescopic chamber (1) itself; the telescopic chamber (1) adopts an elastic tube, and a supporting shell (6) is installed outside the telescopic chamber (1); A first elastic structure (9) is provided between the support shell (6) and the telescopic chamber (1); the first elastic structure (9) is coated on the outside of the elastic tube to form a wrapping protective layer for the elastic tube; the wrapping protective layer contacts a hard substance during the process of resisting telescopic expansion; when the fluid is added to the elastic tube and expands, the wrapping protective layer is squeezed to generate a reverse wrapping force on the elastic tube; the support shell (6) acts on the wrapping protective layer to provide a restraining force that ultimately resists the rupture of the elastic tube in the reverse direction, so that the squeezing force inside and outside the elastic tube is balanced; It also comprises a detection device (5), wherein the detection device (5) is indirectly mounted on the telescopic chamber (1); The detection device adopts a strain gauge sensor, which can judge the volume of the fluid in the telescopic chamber according to the deformation size of the telescopic chamber, and then can obtain the flow rate and flow rate flowing into or out of the telescopic chamber, and finally realize intelligent detection, and the detection data obtained by the strain gauge sensor can be interlocked with the fluid filling device connected to the fluid inlet to realize that when the fluid inside the telescopic chamber reaches the lower limit value, the fluid filling device is started to fill the telescopic chamber with fluid, and when the fluid inside the telescopic chamber reaches the upper limit value, the filling of fluid into the telescopic chamber is stopped, so as to realize intelligent control of the entire device; A moving body (11) is also arranged between the supporting shell (6) and the first elastic structure (9). When the first elastic structure (9) is squeezed by the telescopic chamber (1) and deformed, it can drive the moving body (11) to move. When the moving body (11) moves, it can compress a sensor arranged on one side as a whole. The sensor senses the magnitude of the force applied by the moving body (11) and can thereby obtain the degree of deformation of the telescopic chamber (1), thereby determining the volume of the fluid inside the telescopic chamber (1). The moving body (11) adopts a plate-like structure. The moving body (11) is made of a non-bendable material or a bendable material. The first elastic structure (9) squeezes the moving body (11) to deform the moving body (11), thereby achieving bending, squeezing and deformation of the sensor, thereby achieving sensing.

2. The fluid transport mechanism based on the self-driving cavity according to claim 1, characterized in that: The elastic tube is a rubber tube, and the first elastic structure (9) is made of sponge material.

3. The fluid transport mechanism based on the self-driving cavity according to claim 1, characterized in that: The driving force also comes from a force-applying mechanism (2) connected to the telescopic chamber (1), and the force-applying mechanism (2) includes an elastic member (7); When the force applying mechanism (2) is installed inside the telescopic chamber (1), two ends of the elastic member (7) are respectively connected to two ends of the telescopic chamber (1); When the force applying mechanism (2) is installed outside the telescopic chamber (1), the force applying mechanism (2) adopts any one of the following structures: - the elastic member (7) is arranged in the circumferential direction of the telescopic chamber (1), and two ends of the elastic member (7) are respectively connected to two ends of the telescopic chamber (1); - The elastic member (7) is installed at one end or both ends of the telescopic chamber (1); a bracket (8) is arranged outside the telescopic chamber (1); one end of the elastic member (7) is connected to the bracket (8); the other end of the elastic member (7) is connected to the end of the telescopic chamber (1); when the telescopic chamber (1) is extended, the elastic member (7) is squeezed, thereby compressing the elastic member (7) and shortening it.

4. The fluid transport mechanism based on the self-driving cavity according to claim 1, characterized in that: The number of the fluid outlets (4) is one or more.

5. The fluid transport mechanism based on the self-driving cavity according to claim 1, characterized in that: The number of the detection devices (5) is one or more, wherein the installation position of the detection devices (5) can be arranged according to actual detection requirements.

6. A fluid delivery device, characterized in that: A fluid transport mechanism based on a self-driving cavity as described in any one of claims 1 to 5 is adopted.

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