Drainage device and drainage system for passenger car cabin

Abstract

The invention relates to a drainage device and drainage system for a passenger car cabin, the drainage device comprises a water guide mechanism, the water guide mechanism comprises a flow guide cylinder and a fixing structure connected to the flow guide cylinder, the fixing structure is used for being fixed to a drainage hole of a water collection plate, one end of the flow guide cylinder is connected with an opening and closing reset bottom plate, and the opening and closing reset bottom plate and the flow guide cylinder jointly define a water collection cavity; and the impurity blocking mechanism is installed on the fixing structure, the impurity blocking mechanism is located at the other end of the flow guide cylinder, and the impurity blocking mechanism is provided with a water flowing groove communicating with the water collecting cavity. The impurity blocking mechanism is fixed to the fixing structure, so that water on the flow collecting plate firstly passes through the water flowing groove in the impurity blocking mechanism when flowing to the water collecting cavity, the impurity blocking mechanism can block impurities such as stones and leaves outside the water flowing groove, and water flow can enter the water collecting cavity through the water flowing groove and is discharged out of the water collecting cavity through the opening and closing reset bottom plate; the technical problem that in the prior art, dust or sundries are accumulated, blockage is possibly formed, and the drainage effect is affected is solved.

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 a drainage system for a passenger car cabin. Background Art

[0002] The sealing performance of the front cabin water collecting plate of a passenger car is crucial to the sealing of the entire vehicle and the functional safety performance of the vehicle. In the related art, in order to facilitate the drainage of water on the water collecting plate, a drainage hole is usually designed on the front cabin water collecting plate part, and a drainage pipe is usually set at the drainage hole.

[0003] However, the above-mentioned drainage structure can only discharge water from the water collecting plate. In some cases, dust or debris may enter the water collecting plate. The drain pipe cannot discharge 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, blockage may occur 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 functional safety consequences 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 a 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 form a water collecting chamber; and 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, the connecting plate is installed on the fixed structure; a plurality of blocking columns, the plurality of blocking columns 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 section of each of the blocking columns is set to be trapezoidal, and the diameter of the blocking column at one end close to the connecting plate is larger than the diameter of the blocking column 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 a 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 also includes a plurality of clamping mechanisms, which are arranged at circumferential intervals along the fixed structure, and the clamping mechanisms each include: a clamping platform 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 a side connected to the bending section along the radial direction of the guide tube toward a side away from the guide tube, the clamping section and the clamping platform section are arranged at axial intervals along the guide tube, and the clamping section is inclined toward the side close to the clamping platform section, so that the clamping section and the clamping platform 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 wall of the connecting tube.

[0011] In combination with the first aspect, in one embodiment, the base plate includes a stopper portion and a reset portion connected to the stopper 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 stopper 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 resetting portion and the connecting tube form a rotating groove, and the opening of the rotating 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 formed 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, and 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 fixed structure is fixed to the water collecting plate.

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

[0016] By fixing the debris retaining mechanism to the fixed structure, the water on the collecting plate will first pass through the water flow trough at the debris retaining mechanism when flowing to 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 resetting 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 drawings required for use in the description of the embodiments will be briefly introduced below. 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 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 a 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 figure:

[0023] 1. water guide mechanism; 11. guide tube; 111. connecting boss; 12. fixing structure; 121. columnar section; 122. bending section; 123. step platform; 124. clamping mechanism; 1241. clamping platform section; 1242. clamping section;

[0024] 2. Opening and closing reset bottom plate; 21. bottom plate; 211. stopper; 212. reset portion; 213. rotation groove; 22. connecting tube; 221. clamping slot;

[0025] 3. Water collecting plate;

[0026] 4. Water collection chamber;

[0027] 5. debris-blocking mechanism; 51. water flow trough; 52. connecting plate; 521. cylinder section; 522. folding section; 53. blocking column. DETAILED DESCRIPTION

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

[0029] The 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, blockage may occur 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 functional safety consequences 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 includes a guide tube 11 and a fixed structure 12 connected to the guide tube 11, the fixed structure 12 is used to be fixed at the drainage 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 drainage hole, so that the water enters the water collecting chamber 4 and then is 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 flow trough 51 connected to the water collecting chamber 4, the debris blocking mechanism 5 can block some impurities outside the water flow trough 51, thereby reducing the possibility of impurities entering the water collecting chamber 4 from the water flow 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, and 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, the connecting plate 52 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, a plurality of the blocking columns are fixed at intervals on a side of the connecting plate 52 away from the fixed structure 12, and two adjacent blocking columns 53 surround the water flow 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 channel 51, the water flow can pass between the two blocking columns 53, and at least part of the impurities are blocked outside the water channel 51 by the blocking columns 53. Directly using the blocking columns 53 to form the water channel 51 can make the water channel 51 have a larger water flow space. This arrangement can make the water channel 51 between two adjacent blocking columns 53 even if part of the position is blocked by impurities, the water flow can also flow out from the remaining position of the water channel 51 or other water channels 51, so that the water flow can be kept as smooth as possible. It should be understood that each blocking column 53 can be connected at one end away from the connecting plate 52 without a plate or other mechanism, that is, each blocking column 53 is independently arranged at intervals. At this time, the column structure surrounded by the blocking columns 53 has both ends open, and the open end is connected to the water collecting chamber 4 and the water channel 51. During the water flow process, there is always a lot of gas passing through. Since there is always gas passing through during the water flow process, the flow rate of water 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 at one end close to the connecting plate 52 is larger than the diameter of the baffle column 53 at one end away from the connecting plate 52, that is, the distance between two adjacent baffle columns 53 on the side close to the connecting plate 52 is smaller than the distance between two adjacent baffle columns 53 on the side away from the connecting plate 52. Specifically, impurities with small volume and certain weight usually sink to the bottom of the water flow, that is, close to the connecting plate 52. When the water flow passes through the baffle column 53, the impurities can be blocked due to the small distance between two adjacent baffle columns 53 on the side close to the connecting plate 52, thereby effectively preventing such impurities from flowing into the water collecting chamber 4. Based on the need to prevent small impurities from flowing into the water collection chamber 4 between two adjacent blocking columns 53, the cross section of the blocking column 53 can also be set to a trapezoidal shape, and the water flow channel 51 can be surrounded by a trapezoidal shape. At this time, the width of the water flow channel 51 close to the connecting plate 52 is narrower than the width of the side away from the connecting plate 52. Specifically, the width of the water flow channel 51 on the side away from the connecting plate 52 is wider, which can reduce water flow resistance, effectively guide water flow, have good water conduction performance, and are conducive to the collection and discharge of water flow, which is suitable for the drainage requirements at the water collection plate 3. And multiple blocking columns 53 can form an annular "diversion" 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 a 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 step platform 123, the barrel section 521 is installed on the step platform 123, and the The folding section 522 is fitted to the bending section 122. It should be understood that the folding section 522 can have a certain curvature, so that the water flow can pass through the folding section 522 to form a certain buffer before entering the water collecting chamber 4, and the bending section 122 can make the folding section 522 better supported; the inner wall of the columnar section 121 and the inner 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 tube 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 is in contact with the step 123 and can be better supported. In the embodiment of the present application, in addition to the opening and closing resetting bottom 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 extends into the columnar section 121, it does not affect the spatial 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 platform segment 1241, the clamping platform segment 1241 is fixed to the outer side wall of the columnar segment 121; a clamping segment 1242, the clamping segment 1242 is fixed to the bending segment 122, the clamping segment 1242 extends from the side connected to the bending segment 122 along the radial direction of the guide tube 11 toward the side away from the guide tube 11, and the clamping segment 1242 is connected to the clamping platform segment 1241. 241 is arranged at an axial interval along 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 inclination direction 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 diversion mechanism 1, the clamping section 1242 should be fixed in cooperation with the card platform section 1241. The clamping section 1242 is configured 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 nearly opened and closed to reset. When fixing it, the second section can be first lifted to a certain height in the direction 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, and firmly fix 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 on the fixed structure 12. Specifically, three clamping structures can be arranged, and the three 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 guiding mechanism 1 and the water collecting plate 3 can be achieved.

[0037] In some other embodiments, a clamping structure may be arranged along the circumference of the fixed structure 12. In this case, the second section of the circumference of the fixed structure 12 is closely attached to the sheet metal of the water collecting plate 3, which enhances 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 from the gap between the water guide mechanism 1 and the water collecting plate 3. Preferably, the clamping structure may be made of TPV material, which has a good sealing effect, can be repeatedly disassembled and assembled, and is easy to clean up debris and foreign matter accumulated in the drainage device from outside the vehicle.

[0038] In some optional embodiments, the opening and closing reset bottom plate 2 includes a bottom 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 bottom 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 bottom 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 the respective tube walls. , increasing the contact area. In the embodiment of the present application, the water collecting chamber 4 is formed by the bottom plate 21, the guide tube 11 and the connecting tube 22. The bottom plate 21 can be folded to the side away from the connecting tube 22 under the action of gravity, and the water is retained 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 the odor and noise outside the car from flowing back from this hole to the front cabin area, thereby entering the cabin and causing odor in the passenger compartment. The bottom plate 21 can be reset by hingedly connecting the bottom plate 21 to the connecting tube 22, or by other means.

[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 is fixed to the connecting tube 22, the reset portion 212 has an axial thickness along the connecting tube 22 that is smaller than the axial thickness of the stopper portion 211 along the connecting tube 22, and the reset portion 212 is 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 be made of an elastic material, which may be because the size of the drain hole of the water collecting plate 3 is usually limited, and setting a hinge structure will occupy 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 set to 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, and 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, so that the reset portion 212 is more likely to deform under the action of gravity or without gravity, and its rigidity can be smaller, reducing the possibility of damage to the reset portion 212. Further, 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. The TPV material has good sealing performance, good vibration resistance, good weather resistance, and is easy to process.

[0040] In some optional embodiments, the stopper portion 211, the reset portion 212 and the connecting tube 22 form a rotating groove 213, and the opening of the rotating groove 213 is arranged toward the side away from the water collecting chamber 4, that is, the top surface of the stopper 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 stopper portion 211 to form a rotating groove 213. The top surface and the bottom surface mentioned here can be along the axial direction of the guide tube 11, and the guide tube 11 is connected to one side of the debris blocking mechanism 5. The stopper 211 is regarded as the top, and the side of the guide tube 11 connected to the opening and closing reset bottom plate 2 is regarded as the bottom. The stopper 211 will rotate downward under the action of gravity. In the absence of gravity, the stopper 211 can be pulled up due to the lever principle, so that the stopper 211 is restored to the opening of the connecting tube 22. The whole process completely relies on the weight of the water flow itself to adjust the opening size of the stopper 211, and under the action of the rotating groove 213, the possibility of the reset part 212 of the stopper 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, and 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 excessive 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 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 fixed 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, and the slot 221 is spaced apart from the bottom plate 21, that is, in the embodiment of the present application, the guide tube 11 and the connecting tube 22 are fixed by snap connection, and the connecting tube 22 is located on the outer periphery of the guide tube 11, and the connecting tube 22 can be quickly fixed to the guide tube 11 by using the connecting boss 111 and the slot 221, and it is also convenient to remove and clean it later, or to remove and replace 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, the embodiment of the present application also provides a drainage system for a passenger car cabin, which may include the drainage device for a passenger car cabin as described above, and the drainage system for a passenger car cabin may also include: a water collecting plate 3, the water collecting plate 3 is provided with a drainage hole, the drainage device for a passenger car cabin is installed on the drainage hole, and the fixing structure 12 is fixed to the water collecting plate 3, and the drainage system for a passenger car cabin includes the drainage device for a passenger car cabin in any of the above embodiments, which will not be repeated here. The drainage device for a passenger car cabin can be extended to other scenarios with good sealing and drainage performance requirements, and with weather resistance and aging resistance.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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 the present application and simplifying the description, rather than indicating or implying 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 the present 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present 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 only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such 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 including 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, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0045] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A drainage device for a passenger car cabin, characterized in that: It includes: A water guiding mechanism (1), the water guiding 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 a drain hole of a 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) together forming a water collecting chamber (4); A debris blocking mechanism (5), the debris blocking mechanism (5) being installed on the fixed structure (12), the debris blocking mechanism (5) being located at the other end of the guide tube (11), and the debris blocking mechanism (5) having a water flow trough (51) communicating with the water collecting chamber (4).

2. The drainage device for a passenger vehicle cabin according to claim 1, characterized in that: The debris blocking mechanism (5) comprises: A connecting plate (52), the connecting plate (52) being mounted on the fixing 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) surround the water flow channel (51).

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

4. The drainage device for a passenger vehicle cabin according to claim 2, characterized in that: The connecting plate (52) comprises a barrel section (521) and a folded section (522) connected to the barrel section (521), the folded section (522) is bent toward a side close to the fixed structure (12), and the blocking column (53) is fixed to the folded 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, characterized in that: 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 arranged at intervals 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, characterized in that: The opening and closing resetting bottom plate (2) comprises a bottom plate (21) and a connecting tube (22); the connecting tube (22) is fixed to the flow guide tube (11), and the connecting tube (22) is in communication with the flow guide tube (11); one side of the bottom 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, characterized in that: 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, characterized in that: The blocking portion (211), the resetting portion (212) and the connecting tube (22) form a rotating groove (213), and the opening of the rotating 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, characterized in that: 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 comprises 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 comprises: A water collecting plate (3) is provided with a drainage hole, the drainage device for the passenger car cabin is installed on the drainage hole, and the fixing structure (12) is fixed to the water collecting plate (3).

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