Drainage device and drainage system for passenger car cabin

Abstract

The present application relates to a drainage device and drainage system for a passenger car cabin, which includes: a water guide mechanism, the water guide mechanism includes a guide tube and a fixed structure connected to the guide tube, the fixed structure is used to be fixed to the drain hole of a water collecting plate, one end of the guide tube is connected to an opening and closing reset bottom plate, and the opening and closing reset bottom plate and the guide tube together form a water collecting chamber; a debris blocking mechanism, the debris blocking mechanism is installed on the fixed structure, the debris blocking mechanism is located at the other end of the guide tube, and the debris blocking mechanism has a water flow trough connected to the water collecting chamber. By fixing the debris blocking mechanism to the fixed structure, when the water on the collecting plate flows into the water collecting chamber, it will first pass through the water flow trough at the debris blocking mechanism, and the debris blocking mechanism can block debris such as stones and leaves outside the water flow trough, and the water flow can enter the water collecting chamber through the water flow trough and be discharged from the water collecting chamber through the opening and closing reset bottom plate, thereby solving the technical problem in the related art that dust or debris accumulation may cause blockage and affect the drainage effect.

Description

Technical Field

[0001] The present application relates to the technical field of automobile rain collecting plates, and in particular to a drainage device and drainage system for a passenger car cabin. Background Art

[0002] The sealing performance of a passenger car's front cabin water collection panel is crucial to the overall vehicle's sealing and functional safety. To facilitate the drainage of water from the panel, the panel is typically designed with a drain hole, often with a drain pipe located at the hole.

[0003] However, the above drainage structure can only drain water from the water collecting plate. In some cases, dust or debris may enter the water collecting plate. The drain pipe cannot drain the dust or debris that enters the water collecting plate from outside the vehicle. When dust or debris accumulates, it may form a blockage and affect the drainage effect. In severe cases, it may directly lead to water entering the passenger compartment, damage to the air-conditioning box, water entering the cabin, and other serious functional safety consequences of the vehicle. Summary of the Invention

[0004] The present application provides a drainage device and drainage system for a passenger car cabin, which can solve the technical problem in the related art that when dust or debris accumulates in the drain pipe, it may cause blockage and affect the drainage effect. In severe cases, it may directly lead to water entering the passenger cabin, damage to the air-conditioning box, water entering the cabin, and other serious consequences for the functional safety of the vehicle.

[0005] In a first aspect, an embodiment of the present application provides a drainage device for a passenger car cabin, comprising: a water guiding mechanism, the water guiding mechanism comprising a guide tube and a fixed structure connected to the guide tube, the fixed structure being used to be fixed to the drain hole of a water collecting plate, one end of the guide tube being connected to an opening and closing reset bottom plate, the opening and closing reset bottom plate and the guide tube together forming a water collecting chamber; a debris retaining mechanism, the debris retaining mechanism being installed on the fixed structure, the debris retaining mechanism being located at the other end of the guide tube, and the debris retaining mechanism having a water flow trough connected to the water collecting chamber.

[0006] In combination with the first aspect, in one embodiment, the debris blocking mechanism includes: a connecting plate, which is installed on the fixed structure; and a plurality of blocking columns, which are fixed at intervals on a side of the connecting plate away from the fixed structure, and two adjacent blocking columns form the water flow trough.

[0007] In combination with the first aspect, in one embodiment, the longitudinal cross-section of each of the blocking posts is configured to be trapezoidal, and the diameter of the blocking post at one end close to the connecting plate is larger than the diameter of the blocking post at one end away from the connecting plate.

[0008] In combination with the first aspect, in one embodiment, the connecting plate includes a barrel section and a folding section connected to the barrel section, the folding section is bent toward the side close to the fixed structure, and the blocking columns are all fixed to the folding section; the fixed structure includes a columnar section and a bending section connected to the columnar section, the columnar section is connected to the guide tube, and the inner side wall of the columnar section and the inner side wall of the guide tube form a step, the barrel section is installed on the step, and the folding section is attached to the bending section.

[0009] In combination with the first aspect, in one embodiment, the fixed structure further includes a plurality of clamping mechanisms, and the plurality of clamping mechanisms are arranged at circumferential intervals along the fixed structure, and the clamping mechanisms each include: a clamping section, which is fixed to the outer wall of the columnar section; a clamping section, which is fixed to the bending section, and the clamping section extends from the side connected to the bending section along the radial direction of the guide tube toward the side away from the guide tube, the clamping section and the clamping section are arranged at axial intervals along the guide tube, and the clamping section is inclined toward the side close to the clamping section, so that the clamping section and the clamping section form a clamping groove.

[0010] In combination with the first aspect, in one embodiment, the opening and closing reset base plate includes a base plate and a connecting tube, the connecting tube is fixed to the guide tube, and the connecting tube is connected to the guide tube, and one side of the base plate is connected to the inner side wall of the connecting tube.

[0011] In combination with the first aspect, in one embodiment, the base plate includes a stop portion and a reset portion connected to the stop portion, the reset portion is fixed to the connecting tube, the axial thickness of the reset portion along the connecting tube is smaller than the axial thickness of the stop portion along the connecting tube, and the reset portion is made of elastic material.

[0012] In combination with the first aspect, in one embodiment, the blocking portion, the reset portion and the connecting tube form a rotation groove, and the opening of the rotation groove is arranged toward a side away from the water collecting chamber.

[0013] In combination with the first aspect, in one embodiment, a connecting boss is fixedly provided on the outer periphery of the guide tube, and a slot cooperating with the connecting boss is opened on the inner side wall of the connecting tube, and the slot is spaced apart from the bottom plate.

[0014] In a second aspect, an embodiment of the present application provides a drainage system for a passenger car cabin, which includes the drainage device for a passenger car cabin described above. The drainage system for a passenger car cabin also includes: a water collecting plate, the water collecting plate is provided with a drainage hole, the drainage device for the passenger car cabin is installed in the drainage hole, and the fixing structure is fixed to the water collecting plate.

[0015] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0016] By fixing the debris retaining mechanism to a fixed structure, the water on the collecting plate will first pass through the water flow trough at the debris retaining mechanism when flowing into the water collecting chamber. The debris retaining mechanism can keep debris such as stones and leaves outside the water flow trough, and the water flow can enter the water collecting chamber through the water flow trough and be discharged from the water collecting chamber through the opening and closing reset bottom plate, thereby solving the technical problem in the related technology that dust or debris accumulation may cause blockage and affect the drainage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a drainage device for a passenger vehicle cabin provided in an embodiment of the present application;

[0019] Figure 2 A cross-sectional view of the water guide mechanism provided in an embodiment of the present application;

[0020] Figure 3 A cross-sectional view of a drainage device for a passenger vehicle cabin provided in an embodiment of the present application;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of the drainage system provided in an embodiment of the present application.

[0022] In the picture:

[0023] 1. Water guide mechanism; 11. Diversion tube; 111. Connecting boss; 12. Fixing structure; 121. Columnar section; 122. Bend section; 123. Step platform; 124. Clamping mechanism; 1241. Clamping platform section; 1242. Clamping section;

[0024] 2. Opening and closing reset base plate; 21. Base plate; 211. Stopper; 212. Reset portion; 213. Rotation slot; 22. Connecting cylinder; 221. Clamping slot;

[0025] 3. Water collection plate;

[0026] 4. Water collection chamber;

[0027] 5. Debris retaining mechanism; 51. Water flow trough; 52. Connecting plate; 521. Cylinder section; 522. Folding section; 53. Retaining column. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] An embodiment of the present application provides a drainage device for a passenger car cabin, which can solve the technical problem in the related art that when dust or debris accumulates in the drain pipe, it may cause blockage and affect the drainage effect. In severe cases, it may directly lead to water entering the passenger cabin, damage to the air-conditioning box, water entering the cabin, and other serious consequences for the functional safety of the vehicle.

[0030] See also Figure 1 As shown, a drainage device for a passenger car cabin provided in an embodiment of the present application may include: a water guiding mechanism 1, the water guiding mechanism 1 including a guide tube 11 and a fixed structure 12 connected to the guide tube 11, the fixed structure 12 is used to be fixed to the drain hole of the water collecting plate 3, one end of the guide tube 11 is connected to an opening and closing reset bottom plate 2, the opening and closing reset bottom plate 2 and the guide tube 11 together form a water collecting chamber 4, the water guiding mechanism 1 can guide the water flowing from the water collecting plate 3 to the drain hole, so that the water enters the water collecting chamber 4 and is then discharged; a debris blocking mechanism 5, the debris blocking mechanism 5 is installed on the fixed structure 12, the debris blocking mechanism 5 is located at the other end of the guide tube 11, and the debris blocking mechanism 5 has a water trough 51 connected to the water collecting chamber 4, the debris blocking mechanism 5 can block some impurities outside the water trough 51, thereby reducing the possibility of impurities entering the water collecting chamber 4 from the water trough 51.

[0031] The embodiment of the present application fixes the debris retaining mechanism 5 to the fixed structure 12, so that the water on the collecting plate will first pass through the water flow trough 51 at the debris retaining mechanism 5 when flowing to the water collecting chamber 4. The debris retaining mechanism 5 can block debris such as stones and leaves outside the water flow trough 51, and the water flow can enter the water collecting chamber 4 through the water flow trough 51 and be discharged from the water collecting chamber 4 through the opening and closing reset bottom plate 2. Specifically, the debris retaining mechanism 5 can be set to a cylindrical structure, and a plurality of holes are opened on the side of the cylindrical debris retaining mechanism 5 as the water flow trough 51. Impurities are blocked at the periphery of the cylindrical structure and are not easy to flow into the water collecting chamber 4. The debris retaining mechanism 5 can also be set to other forms that can facilitate the passage of water and block impurities. By setting the debris retaining mechanism 5 at the drainage hole of the water collecting plate 3, impurities are blocked and are not easy to enter the water collecting chamber 4, thereby solving the technical problem in the related art that dust or debris accumulates in the drainage pipe of the drainage hole, which may cause blockage and affect the drainage effect.

[0032] In some optional embodiments, the debris blocking mechanism 5 may include: a connecting plate 52, which is installed on the fixed structure 12, that is, in the embodiment of the present application, the debris blocking mechanism 5 is connected to the fixed structure 12 as a whole by setting the connecting plate 52; a plurality of blocking columns 53, which are fixed at intervals on the side of the connecting plate 52 away from the fixed structure 12, and two adjacent blocking columns 53 form the water trough 51. In the embodiment of the present application, the debris blocking mechanism 5 can block impurities by connecting the plurality of blocking columns 53. After the two blocking columns 53 form a water trough 51, water can flow through between the two blocking columns 53, while at least some impurities are blocked outside the water trough 51 by the blocking columns 53. Directly using the blocking columns 53 to form the water trough 51 can provide the water trough 51 with a larger water flow space. This arrangement allows the water trough 51 to flow out from the remaining position of the water trough 51 or other water troughs 51 even if part of the water trough 51 between two adjacent blocking columns 53 is blocked by impurities, so that the water flow can be kept as smooth as possible. It should be understood that the end of each blocking column 53 away from the connecting plate 52 can be connected without a plate or other mechanism, that is, each blocking column 53 is independently arranged at intervals. In this case, the column structure formed by the blocking columns 53 is open at both ends, and the openings are connected to the water collecting chamber 4 and the water trough 51. During the water flow process, a large amount of gas always passes through. Since there is always gas passing through during the water flow process, the water flow rate can be increased.

[0033] In some optional embodiments, the longitudinal cross-section of each of the baffle columns 53 is set to be trapezoidal, and the diameter of the baffle column 53 near the connecting plate 52 is larger than the diameter of the baffle column 53 away from the connecting plate 52, that is, the distance between two adjacent baffle columns 53 near the connecting plate 52 is smaller than the distance between two adjacent baffle columns 53 away from the connecting plate 52. Specifically, impurities with small volume and a certain weight usually sink to the bottom of the water flow, that is, near the connecting plate 52. When the water flows through the baffle column 53, the impurities can be blocked due to the small distance between two adjacent baffle columns 53 near the connecting plate 52, thereby effectively preventing such impurities from flowing into the water collection chamber 4. Because it is necessary to prevent small impurities from flowing into the water collection chamber 4 between two adjacent baffles 53, the cross-section of the baffles 53 can also be set to a trapezoidal shape, and the water trough 51 can be formed into a trapezoidal shape. In this case, the width of the water trough 51 on the side close to the connecting plate 52 is narrower than that on the side away from the connecting plate 52. Specifically, the wider width of the water trough 51 on the side away from the connecting plate 52 can reduce water flow resistance, effectively guide water flow, have good water conduction performance, facilitate water collection and discharge, and meet the drainage requirements of the water collection plate 3. In addition, multiple baffles 53 can form an annular "divergence" structure, which has a certain diversion effect.

[0034] See also Figure 3As shown, in some optional embodiments, the connecting plate 52 includes a barrel section 521 and a folding section 522 connected to the barrel section 521, the folding section 522 is bent toward the side close to the fixed structure 12, and the blocking column 53 is fixed to the folding section 522; the fixed structure 12 includes a columnar section 121 and a bending section 122 connected to the columnar section 121, the columnar section 121 is connected to the guide tube 11, and the inner side wall of the columnar section 121 and the inner side wall of the guide tube 11 form a stepped platform 123, the barrel section 521 is installed on the stepped platform 123, and the The folding section 522 fits into the bending section 122. It should be understood that the folding section 522 can have a certain curvature, so that the water flow can form a certain buffer through the folding section 522 before entering the water collecting chamber 4, and the bending section 122 can make the folding section 522 better supported; the inner side wall of the columnar section 121 and the inner side wall of the guide tube 11 form a step 123, that is, the inner diameter of the columnar section 121 is smaller than the inner diameter of the guide tube 11. When the cylinder section 521 is placed on the step 123 formed by the columnar section 121 and the guide tube 11, its bottom surface away from the folding section 522 contacts the step 123 and can be better supported. In the embodiment of the present application, in addition to the opening and closing reset base plate 2 and the guide tube 11 jointly enclosing the water collecting chamber 4, the columnar section 121 can also enclose part of the space of the water collecting chamber 4. In order to better connect the debris retaining mechanism 5 with the fixed structure 12, the cylinder section 521 of the debris retaining mechanism 5 can be extended into the columnar section 121 of the fixed mechanism. Then, in the embodiment of the present application, in order to increase the volume of the water collecting chamber 4, a step 123 is formed between the columnar section 121 and the guide tube 11, so that after the cylinder section 521 contacts the step 123, the inner diameter of the cylinder section 521 can be the same as the inner diameter of the guide tube 11. Even if the cylinder section 521 is extended into the columnar section 121, it does not affect the space size of the water collecting chamber 4.

[0035] In some optional embodiments, the fixed structure 12 may further include a plurality of clamping mechanisms 124, and the plurality of clamping mechanisms 124 are arranged at intervals along the circumference of the fixed structure 12, and the clamping mechanisms 124 may include: a clamping section 1241, the clamping section 1241 is fixed to the outer side wall of the columnar section 121; a clamping section 1242, the clamping section 1242 is fixed to the bending section 122, and the clamping section 1242 extends from the side connected to the bending section 122 along the radial direction of the guide tube 11 toward the side away from the guide tube 11, and the clamping section 1242 and the clamping section 1241 are fixed to the outer side wall of the columnar section 121; 241 is arranged at intervals along the axial direction of the guide tube 11, and the clamping section 1242 is inclined toward the side close to the clamping platform section 1241, so that the clamping section 1242 and the clamping platform section 1241 form a clamping groove. When fixing the water guide mechanism 1, the clamping section 1242 and the clamping platform section 1241 can be used to complete the fixation. The clamping section 1242 and the clamping platform section 1241 can be fixed on the sheet metal of the water collecting plate 3. It should be understood that compared with the columnar section 121, the distance between the bending section and the reset bottom plate 21 is farther. Therefore, the clamping platform section 1241 is closer to the opening and closing reset bottom plate 2 than the clamping section 1242.

[0036] See also Figure 2 As shown, in some other embodiments, the clamping section 1242 may include a first section and a second section connected to the first section, the first section is fixed to the bending section, and the first section extends radially along the guide tube 11, the second section is fixed to one end of the first section away from the bending section, and the second section extends obliquely along the radial direction of the guide tube 11 toward the side away from the guide tube 11, and the direction of inclination is toward the direction close to the opening and closing reset bottom plate 2. Preferably, at the end of the second section away from the first section, the distance between the second section and the opening and closing reset bottom plate 2 is smaller than the distance between the card platform section 1241 and the opening and closing reset bottom plate 2. When fixing the water guide mechanism 1, the clamping section 1242 should be fixed in cooperation with the card platform section 1241. The clamping section 1242 is set to have a certain elasticity. Since the height of the second section is closer to the card platform section 1241 than that of the card platform section 1241, The bottom plate 2 is reset to the open and close position. When fixing, the second section can be lifted to a certain height away from the card platform section 1241, and then the sheet metal of the water collecting plate 3 can be clamped between the clamping grooves, and then the second section can be lowered. Since the second section has a certain elasticity, it will move toward the side close to the card platform section 1241. The sheet metal will restrict the second section from returning to its original position at this time, that is, the sheet metal and the second section abut against each other, firmly fixing the fixed structure 12 to the sheet metal of the water collecting plate 3. In the embodiment of the present application, in order to facilitate clamping, a plurality of clamping mechanisms 124 are arranged at circumferential intervals of the fixed structure 12. Specifically, there can be 3 clamping structures, and the 3 clamping structures are evenly arranged at 120 degrees from each other. With the cooperation of multiple spaced clamping structures, the connection and sealing between the water guide mechanism 1 and the water collecting plate 3 can be achieved.

[0037] In some other embodiments, a snap-fit ​​structure may be disposed along the periphery of the fixed structure 12. In this case, the second section of the periphery of the fixed structure 12 is closely attached to the sheet metal of the water collecting plate 3, thereby enhancing the tightness of the water guide mechanism 1 and the water collecting plate 3. When water flows over the water collecting plate 3, it can effectively prevent water from escaping through the gap between the water guide mechanism 1 and the water collecting plate 3. Preferably, the snap-fit ​​structure can be made of TPV material, which has a good sealing effect, can be repeatedly disassembled and assembled, and is easy to clean out debris and foreign matter accumulated in the drainage device from outside the vehicle.

[0038] In some optional embodiments, the opening and closing reset base plate 2 includes a base plate 21 and a connecting tube 22, the connecting tube 22 is fixed to the guide tube 11, and the connecting tube 22 is connected to the guide tube 11, and one side of the base plate 21 is connected to the inner side wall of the connecting tube 22. In order to strengthen the tightness of the connection between the opening and closing reset base plate 2 and the guide tube 11, the connecting tube 22 is fixed to the guide tube 11, and the connecting tube 22 and the guide tube 11 are fixed by their respective tube walls. , increasing the contact area. In the embodiment of the present application, the bottom plate 21, the guide tube 11, and the connecting tube 22 together enclose the water collection chamber 4. The bottom plate 21 can be tilted away from the connecting tube 22 under the action of gravity, and water is discharged from the bottom plate 21. After the water flows out, the bottom plate 21 can reset itself. In the absence of water gravity, the bottom plate 21 is in a normally closed state. At this time, it can prevent odors and noise from the outside of the car from flowing back into the front cabin area through this hole, thereby entering the cabin and causing odor in the passenger compartment. The bottom plate 21 can be reset by hingedly connecting it to the connecting tube 22, or by using other connection methods.

[0039] In some optional embodiments, the bottom plate 21 includes a stopper portion 211 and a reset portion 212 connected to the stopper portion 211, the reset portion 212 being fixed to the connecting tube 22, the reset portion 212 having an axial thickness along the connecting tube 22 being less than the axial thickness of the stopper portion 211 along the connecting tube 22, and the reset portion 212 being made of an elastic material. That is, in the embodiment of the present application, the bottom plate 21 can be reset by making the reset portion 212 of an elastic material. This can be because the drain hole of the water collecting plate 3 is usually limited in size, and setting a hinge structure will take up a large space, which is not conducive to the setting of the guide tube 11. Preferably, the reset portion 212 and the stopper portion 211 can both be made of an elastic material, and the elastic material can specifically be PP, which has good mechanical strength. Of course, the connecting tube 22 can also be made of the same material as the reset portion 212 and the stopper portion 211. The connecting tube 22, the reset portion 212 and the stopper portion 211 can be integrally formed. The thickness of the reset portion 212 along the axial direction of the connecting tube 22 is smaller than the thickness of the stop portion 211 along the axial direction of the connecting tube 22, making the reset portion 212 more susceptible to deformation under the action of gravity or without gravity, and reducing its rigidity, thereby reducing the possibility of damage to the reset portion 212. Furthermore, the guide tube 11 and the fixed structure 12 can both be made of TPV high-performance thermoelastic, and the guide tube 11 and the fixed structure 12 can be integrally formed by injection molding. TPV material has excellent sealing performance, vibration resistance, good weather resistance, and is easy to process.

[0040] In some optional embodiments, the stop portion 211, the reset portion 212 and the connecting tube 22 form a rotation groove 213, and the opening of the rotation groove 213 is set toward the side away from the water collecting chamber 4, that is, the top surface of the stop portion 211 and the reset portion 212 can be flush, and the height of the reset portion 212 on the bottom surface is higher than the height of the stop portion 211 to form a rotation groove 213. The top surface and bottom surface mentioned here can be along the axial direction of the guide tube 11, connecting the guide tube 11 to one side of the debris blocking mechanism 5 Considered as the top and the side of the guide tube 11 connected to the opening and closing reset bottom plate 2 as the bottom, the blocking portion 211 will rotate downward under the action of gravity. In the absence of gravity, the blocking portion 211 can be pulled up due to the lever principle, so that the blocking portion 211 is restored to the opening of the connecting tube 22. The entire process relies entirely on the weight of the water flow itself to adjust the opening size of the blocking portion 211, and under the action of the rotating groove 213, the possibility of the reset portion 212 of the blocking portion 211 breaking during multiple rotations can be effectively reduced. Furthermore, the connecting tube 22 may have a partial area extending a certain length toward the side away from the guide tube 11. This area is arranged corresponding to the reset portion 212. When the stop portion 211 rotates around the reset portion 212, the mechanical properties of the reset portion 212 may be damaged due to the large rotation angle. At this time, the extension of the connecting tube 22 can limit the further movement of the stop portion 211, and the length of the part can also make it convenient for the operator to hold the connecting tube 22, and fix the connecting tube 22 to the guide tube 11 by holding the extended length.

[0041] In some optional embodiments, the outer periphery of the guide tube 11 is fixedly provided with a connecting boss 111, and the inner side wall of the connecting tube 22 is provided with a slot 221 that cooperates with the connecting boss 111. The slot 221 is spaced apart from the base plate 21. That is, in the embodiment of the present application, the guide tube 11 and the connecting tube 22 are fixed together by a snap connection, and the connecting tube 22 is located on the outer periphery of the guide tube 11. The connection boss 111 and the slot 221 can be used to quickly fix the connecting tube 22 to the guide tube 11, and it is also convenient to remove and clean it later, or to remove and replace a part of it. In some other embodiments, the guide tube 11 and the connecting tube 22 can also be connected by adhesive or other methods.

[0042] See also Figure 4As shown, an embodiment of the present application further provides a passenger vehicle cabin drainage system, which may include the passenger vehicle cabin drainage device described above. The passenger vehicle cabin drainage system may further include: a water collecting plate 3, wherein the water collecting plate 3 has a drain hole, the passenger vehicle cabin drainage device is mounted on the drain hole, and the fixing structure 12 is fixed to the water collecting plate 3. The passenger vehicle cabin drainage system includes the passenger vehicle cabin drainage device described in any of the above embodiments, which will not be described in detail here. The passenger vehicle cabin drainage device can be extended to other scenarios requiring good sealing and drainage performance, as well as weather resistance and aging resistance.

[0043] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this 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 cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0044] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0045] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A drainage device for a passenger car cabin, characterized in that: It includes: A water guide mechanism (1), the water guide mechanism (1) comprising a guide tube (11) and a fixing structure (12) connected to the guide tube (11), the fixing structure (12) being used to be fixed to the drain hole of the water collecting plate (3), one end of the guide tube (11) being connected to an opening and closing reset bottom plate (2), the opening and closing reset bottom plate (2) and the guide tube (11) jointly forming a water collecting chamber (4); A debris blocking mechanism (5) is installed on the fixed structure (12), the debris blocking mechanism (5) is located at the other end of the guide tube (11), and the debris blocking mechanism (5) has a water flow trough (51) connected to the water collecting chamber (4).

2. The drainage device for a passenger vehicle cabin according to claim 1, wherein: The debris blocking mechanism (5) comprises: a connecting plate (52), the connecting plate (52) being mounted on the fixed structure (12); A plurality of blocking columns (53) are fixed at intervals on a side of the connecting plate (52) away from the fixed structure (12), and two adjacent blocking columns (53) enclose the water flow channel (51).

3. The drainage device for a passenger vehicle cabin according to claim 2, wherein: The longitudinal section of each blocking column (53) is set to be trapezoidal, and the diameter of the blocking column (53) at one end close to the connecting plate (52) is larger than the diameter of the blocking column (53) at one end away from the connecting plate (52).

4. The drainage device for a passenger vehicle cabin according to claim 2, wherein: The connecting plate (52) comprises a cylindrical section (521) and a folding section (522) connected to the cylindrical section (521), the folding section (522) is bent toward a side close to the fixed structure (12), and the blocking column (53) is fixed to the folding section (522); The fixing structure (12) comprises a columnar section (121) and a bent section (122) connected to the columnar section (121); the columnar section (121) is connected to the guide tube (11); the inner side wall of the columnar section (121) and the inner side wall of the guide tube (11) form a stepped platform (123); the tube section (521) is mounted on the stepped platform (123); and the folded section (522) is attached to the bent section (122).

5. The drainage device for a passenger vehicle cabin according to claim 4, wherein: The fixed structure (12) further comprises a plurality of clamping mechanisms (124), wherein the plurality of clamping mechanisms (124) are arranged at intervals along the circumference of the fixed structure (12), and each of the clamping mechanisms (124) comprises: A card platform section (1241), wherein the card platform section (1241) is fixed to the outer side wall of the columnar section (121); A snap-fit ​​section (1242), wherein the snap-fit ​​section (1242) is fixed to the bending section (122), and the snap-fit ​​section (1242) extends from a side connected to the bending section (122) along the radial direction of the guide tube (11) toward a side away from the guide tube (11), and the snap-fit ​​section (1242) and the card platform section (1241) are spaced apart along the axial direction of the guide tube (11), and the snap-fit ​​section (1242) is inclined toward a side close to the card platform section (1241), so that the snap-fit ​​section (1242) and the card platform section (1241) form a snap-fit ​​groove.

6. The drainage device for a passenger vehicle cabin according to claim 1, wherein: The opening and closing reset base plate (2) comprises a base plate (21) and a connecting tube (22); the connecting tube (22) is fixed to the guide tube (11), and the connecting tube (22) is in communication with the guide tube (11); one side of the base plate (21) is connected to the inner side wall of the connecting tube (22).

7. The drainage device for a passenger vehicle cabin according to claim 6, wherein: The bottom plate (21) comprises a stopper portion (211) and a reset portion (212) connected to the stopper portion (211); the reset portion (212) is fixed to the connecting tube (22); the thickness of the reset portion (212) along the axial direction of the connecting tube (22) is smaller than the thickness of the stopper portion (211) along the axial direction of the connecting tube (22); and the reset portion (212) is made of elastic material.

8. The drainage device for a passenger vehicle cabin according to claim 7, wherein: The blocking portion (211), the reset portion (212) and the connecting tube (22) form a rotation groove (213), and the opening of the rotation groove (213) is arranged toward a side away from the water collecting chamber (4).

9. The drainage device for a passenger vehicle cabin according to claim 6, wherein: A connecting boss (111) is fixedly provided on the outer periphery of the guide tube (11), and a clamping groove (221) cooperating with the connecting boss (111) is provided on the inner side wall of the connecting tube (22), and the clamping groove (221) is spaced apart from the bottom plate (21).

10. A drainage system for a passenger car cabin, characterized in that: It includes the drainage device for a passenger car cabin according to any one of claims 1 to 9, and the drainage system for a passenger car cabin further includes: A water collecting plate (3) is provided with a drainage hole, the drainage device for the passenger car cabin is installed in the drainage hole, and the fixing structure (12) is fixed to the water collecting plate (3).

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