Urea filling pipe and vehicle

Abstract

The invention discloses a urea filling pipe and a vehicle. The urea filling pipe comprises a pipe body and a filter part, wherein the pipe body is provided with a fluid circulation cavity and a filling port communicated with the fluid circulation cavity; the filtering piece has a first state and a second state, and in the first state, the circumferential edge of the filtering piece is matched with the circumferential wall face of the fluid circulation cavity so that the filtering piece can filter fluid flowing through the fluid circulation cavity; and in the second state, at least part of the outer peripheral edge of the filtering piece is separated from the inner peripheral wall of the fluid circulation cavity, and the filtering piece is constructed to be capable of being switched between the first state and the second state. The possibility that impurities enter the urea box and pollute the urea box can be reduced, and the influence on the smoothness of the filling process of the filling gun is small.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle parts, and in particular to a urea filling pipe and a vehicle. Background Art

[0002] With the upgrading of regulations, urea systems for diesel vehicles have begun to be widely used. The main components of the urea system are: urea filling structure (filling pipe), storage structure (urea tank), control and injection structure (control unit and pump body), delivery structure (delivery pipeline), and injection execution structure (injector). Users fill urea solution through the urea filling pipe and store it in the urea tank for vehicle use.

[0003] At present, there are two modes of urea filling: filling with a filling gun and manual filling. Since the consumption rate of urea solution is much lower than that of diesel, and the penetration rate of urea filling machines in the market is low, manual filling is far more common than filling with a filling gun. Manual filling of urea solution is very likely to cause the mixing of impurities such as dust and sand, which is more obvious in Northwest my country (Xinjiang, Inner Mongolia, etc.); when buying urea solution in the market, plastic tubes are often given away. When manually filling urea into the filling tube of the vehicle urea system, this plastic tube is often used. Impurities contaminated by the plastic tube during repeated use and storage are also very easy to enter the urea tank, contaminating the urea solution and damaging other parts. Summary of the invention

[0004] In view of this, the present invention aims to provide a urea filling pipe, which can reduce the possibility of impurities entering the urea tank and thus contaminating the urea tank, and has little effect on the smoothness of the filling process of the filling gun.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A urea filling pipe, comprising:

[0007] A tube body, the tube body having a fluid flow cavity and a filling port communicated with the fluid flow cavity;

[0008] A filter element, the filter element having a first state and a second state. In the first state, the circumferential edge of the filter element cooperates with the circumferential wall of the fluid circulation chamber so that the filter element filters the fluid flowing through the fluid circulation chamber; in the second state, at least a portion of the outer circumferential edge of the filter element is separated from the inner circumferential wall of the fluid circulation chamber, and the filter element is configured to be switchable between the first state and the second state.

[0009] In some embodiments, the urea filling pipe also includes a shell, which is arranged on the tube body, and the shell has a accommodating cavity; the filter element is configured to be movable between the fluid flow cavity and the accommodating cavity, and in the first state, the filter element is located in the fluid flow cavity; in the second state, the filter element is at least partially located in the accommodating cavity.

[0010] In some embodiments, the urea filling pipe also includes a first rope and a first elastic member, one end of the first rope and one end of the first elastic member are respectively connected to the filter element, the first rope is used to pull the filter element, the other end of the first elastic member is connected to the shell, and the first elastic member is used to provide a restoring force opposite to the pulling direction of the first rope.

[0011] In some embodiments, the urea filling pipe further includes a rope fixing assembly, wherein the rope fixing assembly is connected to the other end of the first rope;

[0012] The rope fixing assembly is used to pull the first rope a first distance to switch the filter element from the first state and maintain it to the second state;

[0013] The rope fixing assembly is further used to pull the first rope a second distance to switch the filter element from the second state to the first state.

[0014] In some embodiments, the first distance is less than the second distance.

[0015] In some embodiments, the urea filling pipe also includes a first detection component and an execution control component that are communicatively connected, wherein the first detection component is used to detect whether the filling port is in a closed state, and the execution control component is used to control the rope fixing component to perform at least one setting action when the filling port is in a closed state, and the setting action is to pull the first rope to move a first distance and a second distance in sequence.

[0016] In some embodiments, the rope securing assembly comprises:

[0017] A fixing member, the fixing member being arranged on the tube body;

[0018] A slider, the slider being connected to the other end of the first rope, and the slider being slidably disposed on the fixing member along a set direction;

[0019] The slider is used to pull the first rope a first distance to switch the filter element from the first state and maintain it to the second state;

[0020] The slider is also used to pull the first rope a second distance to switch the filter element from the second state to the first state.

[0021] In some embodiments, the rope fixing assembly further includes a second elastic member, both ends of which are respectively connected to the fixing member and the slider, and the second elastic member is used to provide a restoring force in the opposite direction to the pulling direction of the first rope.

[0022] In some embodiments, the urea filling pipe further includes a driving component, and the driving component is used to drive the sliding block to slide along the set direction in a direction away from the first rope.

[0023] In some embodiments, the driving assembly includes a second rope, wherein one end of the second rope is connected to the slider, the second rope is used to pull the slider along the set direction and away from the first rope, and the other end of the second rope extends outside the urea filling pipe; and / or,

[0024] The driving assembly includes a power-carrying coil and a magnetic part that cooperate with each other, one of the power-carrying coil and the magnetic part is arranged on the slider, and the other of the power-carrying coil and the magnetic part is arranged on the fixed part, and the power-carrying coil and the magnetic part magnetically cooperate to apply a driving force to the slider along the set direction and away from the first rope.

[0025] In some embodiments, the filter element includes a flexible skeleton and a filter portion, the circumferential edge of the filter portion is connected to the flexible skeleton, and when the filter element is located in the accommodating cavity, the flexible skeleton is in a folded state; when the filter element is located in the fluid circulation cavity, the flexible skeleton is in an unfolded state and the circumferential edge of the flexible skeleton is sealed with the circumferential side wall of the fluid circulation cavity.

[0026] In some embodiments, the urea filling pipe also includes a second detection component, which is used to detect whether the filling method of the urea filling pipe is filling with a filling gun. The filter element is configured to switch to the second state when the filling method of the urea filling pipe is filling with a filling gun, and switch to the first state after the filling is completed.

[0027] According to the urea filling pipe of the embodiment of the present invention, a filter element switchable between a first state and a second state is provided. In the first state, a circumferential edge of the filter element cooperates with a circumferential wall surface of a fluid circulation cavity, so that the filter element filters the fluid flowing through the fluid circulation cavity; in the second state, at least a portion of an outer circumferential edge of the filter element is separated from an inner circumferential wall of the fluid circulation cavity, so that when manually filling the urea solution, the filter element can be switched to the first state, so that the filter element can filter the urea solution, so as to reduce the possibility of impurities and the like entering the urea tank and thus contaminating the urea tank; when the filling gun fills the urea solution, the filter element can be switched to the second state, so that the filter element does not affect the filling smoothness of the filling gun.

[0028] Another object of the present invention is to provide a vehicle, comprising a urea filling pipe according to an embodiment of the present invention.

[0029] Compared with the prior art, the advantages of the vehicle described in the present invention are the same as the advantages of the urea filling pipe in the embodiment of the present invention, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 1 is a first structural schematic diagram of a urea filling pipe according to an embodiment of the present invention.

[0032] Figure 2 1 is a second structural schematic diagram of a urea filling pipe according to an embodiment of the present invention.

[0033] Figure 3 is a partial cross-sectional view of a urea filling pipe according to an embodiment of the present invention, which illustrates that the filter element is in a second state.

[0034] Figure 4 3 is a partial cross-sectional view of a urea filling pipe according to an embodiment of the present invention, which illustrates that the filter element is in a first state.

[0035] Figure 5 The figure is a schematic diagram of the structure of a rope fixing assembly in a urea filling pipe according to an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] Urea filling pipe 1000;

[0038] tube body 10;

[0039] Filling port 101; fixing portion 1011; fluid flow cavity 102; drain port 103;

[0040] Filter element 20;

[0041] Flexible skeleton 201; filter part 202;

[0042] Housing 30

[0043] Accommodating chamber 301;

[0044] A first rope 40; a first elastic member 50;

[0045] Rope securing assembly 60;

[0046] Fixing member 601; Sliding block 602; First sliding block 6021; Second sliding block 6022;

[0047] Limiting member 603; guide groove 604; first guide groove 6041; second guide groove 6042;

[0048] The third guide groove 6043; the fourth guide groove 6044; the fifth guide groove 6045; the second elastic member 605;

[0049] Guide structure 70; second rope 801; energized coil 802; magnetic member 803;

[0050] Ventilation pipe 90; fixing structure 100. DETAILED DESCRIPTION

[0051] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0052] The following will refer to Figure 1-Figure 5 The present invention is described in detail with reference to embodiments.

[0053] like Figure 1-Figure 5 As shown, the urea filling pipe 1000 according to the embodiment of the present invention comprises a pipe body 10 and a filter 20, wherein the pipe body 10 has a fluid flow cavity 102 and a filling port 101 connected to the fluid flow cavity 102; the filter 20 has a first state and a second state, in the first state, as shown in FIG. Figure 4 As shown, the circumferential edge of the filter element 20 cooperates with the circumferential wall of the fluid flow cavity 102, so that the filter element 20 filters the fluid flowing through the fluid flow cavity 102; in the second state, as shown Figure 3 As shown, at least a portion of the outer circumference of the filter element 20 is separated from the inner circumferential wall of the fluid flow chamber 102, and the filter element 20 is configured to be switchable between a first state and a second state.

[0054] Specifically, the tube body 10 has a fluid circulation cavity 102 and a filling port 101 connected to the fluid circulation cavity 102; it is understandable that the tube body 10 also has a drain port 103, and the drain port 103 is connected to the liquid inlet of the urea tank. For example, a quick-connect connector is provided at the drain port 103 to facilitate quick connection with the liquid inlet of the urea tank. When the urea solution is added, the urea solution is injected into the fluid circulation cavity 102 from the filling port 101, and then flows out from the drain port 103 into the urea tank.

[0055] like Figure 3 and Figure 4 As shown, the filter element 20 has a first state and a second state. In the first state, the circumferential edge of the filter element 20 cooperates with the circumferential wall of the fluid circulation chamber 102, so that the filter element 20 filters the fluid flowing through the fluid circulation chamber 102; in the second state, at least a portion of the outer circumferential edge of the filter element 20 is separated from the inner circumferential wall of the fluid circulation chamber 102, so that the filter element 20 does not filter the fluid passing through the fluid circulation chamber 102 or only a portion of the filter element 20 filters the fluid passing through the fluid circulation chamber 102. The filter element 20 is configured to be switchable between the first state and the second state.

[0056] It should be noted that, when the urea solution is filled manually, the filter element 20 can be in a first state, in which the filter element 20 can filter the fluid flowing through the fluid circulation chamber 102 to reduce the possibility of impurities entering the urea tank and contaminating the urea tank; when the urea solution is filled by a filling gun, the filter element 20 can be in a second state, in which at least part of the outer peripheral edge of the filter element 20 is separated from the inner peripheral wall of the fluid circulation chamber 102. In this case, the filter element 20 does not hinder the flow of the fluid, or has a small hindering effect on the flow of the fluid, which is conducive to ensuring the smoothness of the filling process of the filling gun.

[0057] More specifically, for example, the filter element 20 can rotate in the fluid flow cavity 102. When the filtering surface of the filter element 20 is parallel to the flow direction of the fluid, the filter element 20 reaches the second state. At this time, the filter element 20 has little effect on the smoothness of the flow of the fluid; when the filtering surface of the filter element 20 is perpendicular to the flow direction of the fluid, the filter element 20 reaches the first state. At this time, the filter element 20 can filter the fluid to reduce the possibility of impurities entering the urea tank.

[0058] More specifically, for example, the urea filling pipe 1000 also includes a shell 30, and the shell 30 also has a accommodating chamber 301. The filter element 20 can move between the fluid circulation chamber 102 and the accommodating chamber 301. When the filter element 20 at least partially leaves the fluid circulation chamber 102, the filter element 20 reaches a second state. At this time, the filter element 20 has little effect on the smoothness of the flow of the fluid; when the filter element 20 moves into the fluid circulation chamber 102, the filter element 20 reaches a first state. At this time, the filter element 20 can filter the fluid to reduce the possibility of impurities entering the urea tank.

[0059] According to the urea filling pipe 1000 of the embodiment of the present invention, a filter element 20 switchable between a first state and a second state is provided. In the first state, the circumferential edge of the filter element 20 cooperates with the circumferential wall surface of the fluid circulation cavity 102, so that the filter element 20 filters the fluid flowing through the fluid circulation cavity 102; in the second state, at least a portion of the outer circumferential edge of the filter element 20 is separated from the inner circumferential wall of the fluid circulation cavity 102, so that when the urea solution is manually filled, the filter element 20 can be switched to the first state, so that the filter element 20 can filter the urea solution to reduce the possibility of impurities and the like entering the urea tank and thus contaminating the urea tank; when the filling gun fills the urea solution, the filter element 20 can be switched to the second state, so that the filter element 20 does not affect the filling smoothness of the filling gun.

[0060] In some embodiments, Figure 1 and Figure 2 As shown, the urea filling pipe 1000 may further include a vent pipe 90, one end of which is used to be connected to the exhaust port of the urea tank, and the other end of the vent pipe 90 may extend to the filling port 101, so as to discharge the gas in the urea tank during the filling process, balance the pressure in the urea tank, and ensure smooth filling.

[0061] In some embodiments, the urea filling pipe 1000 may also fix the structure 100 to fix itself to the vehicle body frame.

[0062] In some embodiments, the filling port 101 of the tube body 10 may be disposed at a fuel filling port of a vehicle.

[0063] According to some embodiments of the present invention, Figure 3 and Figure 4As shown, the urea filling pipe 1000 further includes a housing 30, which is disposed on the pipe body 10 and has a receiving chamber 301; the filter element 20 is configured to be movable between the fluid flow chamber 102 and the receiving chamber 301, and in the first state, the filter element 20 is located in the fluid flow chamber 102; in the second state, the filter element 20 is at least partially located in the receiving chamber 301. It can be understood that by providing the receiving chamber 301, the filter element 20 is configured to be movable between the fluid flow chamber 102 and the receiving chamber 301. On the one hand, the filter element 20 has less influence on the smoothness of fluid flow in the second state. On the other hand, when the filling gun is used for filling, the filter element 20 can completely leave the fluid flow chamber 102, so that the fluid will not wash the surface of the filter element 20, reducing the possibility of impurities on the surface of the filter element 20 being washed down and mixed in the fluid.

[0064] In some embodiments, the shell 30 includes a shell body and a cover body, the cover body covers the opening on the shell body, for example, the cover body is threadedly connected to the opening, the filter element 20 is fixed on the cover body and can be removed from the opening, so that after the filter element 20 has been used for a period of time, the filter element 20 can be taken out for cleaning and replacement to ensure the filtering effect of the filter element 20.

[0065] According to some embodiments of the present invention, Figure 3 and Figure 4 As shown, the urea filling pipe 1000 also includes a first rope 40 and a first elastic member 50, one end of the first rope 40 and one end of the first elastic member 50 are respectively connected to the filter element 20, the first rope 40 is used to pull the filter element 20, the other end of the first elastic member 50 is connected to the housing 30, and the first elastic member 50 is used to provide a restoring force opposite to the pulling direction of the first rope 40. It can be understood that, for example, the first rope 40 and the first elastic member 50 can be arranged on one side of the filter element 20 in the radial direction. At this time, when the first rope 40 is pulled to drive the filter element 20 to move, the first rope 40 can pull the filter element 20 back into the housing 30. When the first rope 40 is not pulled, the filter element 20 moves into the fluid flow cavity 102 under the action of the restoring force of the first elastic member 50. For example, the first rope 40 and the first elastic member 50 can also be arranged on both sides of the filter element 20 in the radial direction. When the first rope 40 is pulled to drive the filter element 20 to move, the filter element 20 can enter the fluid flow cavity 102. When the first rope 40 is not pulled, the filter element 20 moves into the accommodating cavity 301 under the action of the restoring force of the first elastic member 50. Therefore, by pulling the first rope 40, the filter element 20 can be switched between the first state and the second state.

[0066] According to some embodiments of the present invention, Figure 5As shown, the urea filling pipe 1000 also includes a rope fixing assembly 60, which is connected to the other end of the first rope 40; the rope fixing assembly 60 is used to pull the first rope 40 a first distance to switch the filter 20 from the first state to the second state; the rope fixing assembly 60 is also used to pull the first rope 40 a second distance to switch the filter 20 from the second state to the first state. In this way, for example, when a person pulls manually, the person does not need to continuously apply tension to the first rope 40, and the filter 20 can be kept in the second state, which is convenient for the user to operate. Among them, the first distance and the second distance can be the same or different. By pulling the second rope 801, the rope fixing assembly 60 can be switched between the first state and the second state, and the operation is simpler and more convenient.

[0067] According to some embodiments of the present invention, the first distance is smaller than the second distance. It should be noted that the filter element 20 is in the first state. If the first rope 40 is pulled by the rope fixing assembly 60 for the first distance, the rope fixing assembly 60 will cooperate with the first elastic member 50 to switch the filter element 20 to and maintain it in the second state; since the first distance is smaller than the second distance, if the first rope 40 is pulled by the rope fixing assembly 60 for the second distance, the rope fixing assembly 60 will also cooperate with the first elastic member 50 to switch the filter element 20 to and maintain it in the second state;

[0068] The filter element 20 is in the second state. If the first rope 40 is pulled by the rope fixing assembly 60 for the second distance, the rope fixing assembly 60 will cooperate with the first elastic member 50 to switch the filter element 20 to and maintain the first state; if the first rope 40 is pulled by the rope fixing assembly 60 for the first distance, since the first distance is less than the second distance, the first rope 40 needs to be pulled by the second distance before the filter element 20 switches to the first state. Therefore, at this time, the rope fixing assembly 60 will cooperate with the first elastic member 50 to make the filter element 20 return to the second state after moving. In other words, by making the first distance less than the second distance, the first rope 40 can be pulled in sequence to move the first distance and the second distance, so that the filter element 20 can switch to and maintain the first state regardless of whether it is in the first state or the second state, ensuring that the filter element 20 is in a state where the fluid can be filtered, further reducing the possibility of the fluid directly entering the urea tank without being filtered.

[0069] According to some embodiments of the present invention, the urea filling pipe 1000 further includes a first detection member and an execution control component that are communicatively connected, the first detection member is used to detect whether the filling port 101 is in a closed state, and the execution control component is used to control the rope fixing component 60 to perform at least one setting action when the filling port 101 is in a closed state, and the setting action is to pull the first rope 40 to move the first distance and the second distance in sequence. That is, by setting the execution control component, the execution control component can execute the setting action, so that the filling port 101 can be in the first state before the next filling, reducing the possibility that the filter 20 is not in the first state during manual filling, and the execution control component can be automatically executed to improve the convenience of user use. More specifically, for example, the first detection member can be a light intensity detector, when the filling port 101 is in a closed state, the light intensity at the filling port 101 is weak, and when the filling port 101 is in an open state, the light intensity at the filling port 101 is strong, thereby, it can be judged whether the filling port 101 is in a closed state, but it is not limited to this, and the first detection member can be other detection components.

[0070] In some embodiments, the execution control component is connected to the vehicle control system via CAN communication to improve integration and make control more convenient.

[0071] According to some embodiments of the present invention, Figure 5 As shown, the rope fixing assembly 60 includes a fixing member 601 and a slider 602, wherein the fixing member 601 is disposed on the tube body 10; the slider 602 is connected to the other end of the first rope 40, and the slider 602 is slidably disposed on the fixing member 601 along a set direction; the slider 602 is used to pull the first rope 40 by a first distance to switch the filter element 20 from the first state to the second state; the slider 602 is also used to pull the first rope 40 by a second distance to switch the filter element 20 from the second state to the first state. Therefore, a driving assembly can be provided on the fixing member 601 to drive the slider 602 to switch the filter element 20 between the first state and the second state.

[0072] According to some embodiments of the present invention, Figure 5As shown, the rope fixing assembly 60 also includes a limiter 603, and the slider 602 is provided with a guide groove 604, and the guide groove 604 includes a first guide groove 6041, a second guide groove 6042, a third guide groove 6043 and a fourth guide groove 6044. The first guide groove 6041, the second guide groove 6042, the third guide groove 6043 and the fourth guide groove 6044 are sequentially connected end to end. The angle opening formed by the extension direction of the first guide groove 6041 and the extension direction of the fourth guide groove 6044 and the angle opening formed by the extension direction of the second guide groove 6042 and the extension direction of the third guide groove 6043 are both toward the side of the slider 602 connected to the first rope 40, the height of the groove bottom at the head end of the first guide groove 6041 is less than the height of the groove bottom at the tail end of the fourth guide groove 6044, and the height of the groove bottom at the head end of the second guide groove 6042 is less than the height of the groove bottom at the tail end of the fourth guide groove 6044. The height of the bottom of the third guide groove 6043 at the tail end is less than the height of the bottom of the third guide groove 6043 at the head end is less than the height of the bottom of the second guide groove 6042 at the tail end, the height of the bottom of the fourth guide groove 6044 at the head end is less than the height of the bottom of the third guide groove 6043 at the tail end, the extension length of the first guide groove 6041 is the first distance, and the extension length of the third guide groove 6043 is the second distance. Here, the extension length of the first guide groove 6041 and the extension length of the third guide groove 6043 are the extension lengths along the set direction; one end of the limit member 603 is movably connected to the fixing member 601, and the other end of the limit member 603 can move along the guide groove 604 under the action of the tension of the first rope 40 and the restoring force of the first elastic member 50; specifically, the limit member 603 can be a rod, and one end of the rod has a hook portion.

[0073] Wherein, when the filter element 20 is in the second state, the other end of the stopper 603 is maintained at the head end of the first guide groove 6041 under the action of the first elastic member 50; when the filter element 20 is in the first state, the other end of the stopper 603 is maintained at the head end of the third guide groove 6043 under the action of the first elastic member 50. It should be noted here that when the filter element 20 is in the second state and the other end of the stopper 603 is located in the first guide groove 6041, in the process of the slider 602 moving to pull the first rope 40 to move the first distance, the other end of the stopper 603 will move along the first guide groove 6041. When the slider 602 stops pulling the first rope 40, the slider 602 moves in the opposite direction so that the other end of the stopper 603 moves along the second guide groove 6043 and is fixed in the head end of the third guide groove 6043. At this time, the filter element 20 switches and remains in the first state.

[0074] When the filter element 20 is in the first state, and the other end of the stopper 603 is located at the head end of the third guide groove 6043, during the process of the slider 602 moving and pulling the first rope 40 to move the second distance, the other end of the stopper 603 will leave the third guide groove 6043 and enter the fourth guide groove 6044. When the first rope 40 stops being pulled, the slider 602 moves in the opposite direction so that the other end of the stopper 603 moves along the fourth guide groove 6044 and returns to the first guide groove 6041, and the filter element 20 switches to and remains in the second state. Therefore, the present invention can realize the fast and efficient switching of the filter element 20 between the first state and the second state by pulling the first rope 40.

[0075] In some embodiments, Figure 5 As shown, the guide groove 604 also includes a fifth guide groove 6045, which extends along a set direction, and one end of the fifth guide groove 6045 along the set direction is connected to the head end of the first guide groove 6041 and the tail end of the fourth guide groove 6044. At this time, the extension length of the fifth guide groove 6045 and the first guide groove 6041 in the set direction is a first distance. By setting the fifth guide groove 6045, the movable range of the slider 602 can be increased, and it can be set according to actual conditions and needs.

[0076] In some embodiments, the height of the bottom of the first guide groove 6041, the height of the bottom of the second guide groove 6042, the height of the bottom of the third guide groove 6043, and the height of the bottom of the fourth guide groove 6044 may be consistent or inconsistent.

[0077] In some embodiments, Figure 5 As shown, the slider 602 may include a first slider 6021 and a second slider 6022 , and the first slider 6021 and the second slider 6022 have a structure that cooperates with each other, so that the first slider 6021 and the second slider 6022 can move synchronously.

[0078] In some embodiments, Figure 5 As shown, the fixing member 601 and / or the slider 602 are provided with mutually cooperating guide structures 70 to guide the movement of the slider 602 to avoid unnecessary large deviation of the slider 602 during the movement.

[0079] According to some embodiments of the present invention, Figure 5As shown, the rope fixing assembly 60 further includes a second elastic member 605, the two ends of which are connected to the fixing member 601 and the slider 602 respectively, and the second elastic member 605 is used to provide a restoring force opposite to the pulling direction of the first rope 40. By providing the second elastic member 605, the second elastic member 605 and the first elastic member 50 together provide a restoring force opposite to the pulling direction of the first rope 40, and when the driving force on the first rope 40 disappears, the filter 20 can achieve a faster state switching, and if one of the first elastic member 50 and the second elastic member 605 fails, the urea filling pipe 1000 of the present invention can still continue to be used normally, which is conducive to ensuring the service life.

[0080] More specifically, for example, the second elastic member 605 and the limit member 603 are located on the same side of the slider 602 along the set direction; or, the second elastic member 605 and the limit member 603 are respectively arranged on both sides of the slider 602 along the set direction; or, there are two second elastic members 605, and the two second elastic members 605 are respectively arranged on both sides of the slider 602 along the set direction. At this time, the two second elastic members 605 can have an initial deformation amount to reduce the possibility of the slider 602 shaking significantly; or, multiple second elastic members 605 can be set according to needs.

[0081] According to some embodiments of the present invention, the urea filling pipe 1000 further includes a driving assembly, which is used to drive the slider 602 to slide in a set direction away from the first rope 40. More specifically, for example, Figure 5 As shown, the driving assembly includes a second rope 801, wherein one end of the second rope 801 is connected to the slider 602, and the second rope 801 is used to pull the slider 602 along a set direction and away from the side of the first rope 40, and the other end of the second rope 801 extends outside the urea filling pipe 1000, for example, it can extend to the filling port 101, and a fixing portion 1011 can be provided at the filling port 101. The second rope 801 is passed through the fixing portion 1011, and the fixing portion 1011 is not easy to be separated. The user can manually pull the second rope 801 to drive the slider 602 to move.

[0082] For example, Figure 5As shown, the driving assembly may also include a power-on coil 802 and a magnetic member 803 that cooperate with each other, one of the power-on coil 802 and the magnetic member 803 is arranged on the slider 602, and the other of the power-on coil 802 and the magnetic member 803 is arranged on the fixing member 601, and the power-on coil 802 and the magnetic member 803 cooperate magnetically to apply a driving force to the slider 602 in a set direction and away from the first rope 40. In other words, the movement of the slider 602 can be controlled manually or electrically, allowing the user to control it by himself when there is a special need, ensuring that the user's use needs can be met in various environments. The power-on coil 802 can be connected to the execution control assembly, and the execution control assembly is used to control the power-on coil 802. More specifically, the magnetic member 803 can be a magnet, an iron block or other ferromagnetic member, or a second power-on coil.

[0083] In an embodiment in which the driving component includes a power-on coil 802 and a magnetic member 803 that cooperate with each other, when the filling port 101 is in a closed state, the power-on coil 802 is energized once for a short time and once for a long time in sequence. The power-on coil 802 is energized once for a short time to move the slider 602 a first distance; the power-on coil 802 is energized once for a long time to move the slider 602 a second distance, so that the filter element 20 can be switched to and maintained in the first state regardless of whether it is in the first state or the second state, ensuring that the filter element 20 is in a state where the fluid can be filtered, further reducing the possibility that the fluid directly enters the urea tank without being filtered. For example, when the filling is completed and the filling port 101 is closed, the power-on coil 802 can be energized once for a short time and once for a long time to prevent the filter element 20 from not being switched to the first state during manual operation, so as to ensure that the filter element 20 is still in the first state during the next filling.

[0084] According to some embodiments of the present invention, Figure 3 As shown, the filter element 20 includes a flexible skeleton 201 and a filter portion 202, the circumferential edge of the filter portion 202 is connected to the flexible skeleton 201, and when the filter element 20 is located in the accommodating cavity 301, the flexible skeleton 201 is in a folded state; when the filter element 20 is located in the fluid circulation cavity 102, the flexible skeleton 201 is in an unfolded state and the circumferential edge of the flexible skeleton 201 is sealed with the circumferential side wall of the fluid circulation cavity 102. By providing a foldable and unfoldable filter element 20, the filter element 20 occupies a smaller space when it is moved into the accommodating cavity 301, which is conducive to reducing the overall occupied space of the urea filling pipe 1000. The flexible skeleton 201 is a flexible structure with elasticity, which can expand and stretch in the fluid circulation cavity 102, so that the filter portion 202 is unfolded.

[0085] According to some embodiments of the present invention, the urea filling pipe 1000 further includes a second detection member, which is used to detect whether the filling method of the urea filling pipe 1000 is filling with a filling gun, and the filter 20 is configured to switch to the second state when the filling method of the urea filling pipe 1000 is filling with a filling gun, and switch to the first state after the filling is completed. It should be noted that the switching of the filter 20 between the first state and the second state can be manually switched by the user or automatically switched. When the user manually switches, for example, when the second detection member detects that the filling method of the urea filling pipe 1000 is filling with a filling gun, a third detection member is set to detect whether the filter 20 is in the second state, for example, a position detection member can be set to detect the position of the slider 602, so as to determine whether the filter 20 is in the second state. If the filter 20 is not in the second state, the user can be reminded to switch the filter 20 to the second state. Alternatively, it can also be switched automatically, for example, the execution control component directly and automatically controls the rope fixing component 60 to pull the first rope 40 to move the second distance and the first distance in sequence, so that the filter element 20 switches to the second state so as not to affect the smoothness of the filling of the filling gun, or before filling, the filter element 20 is in the first state, then, at this time, the first rope 40 can be directly pulled to move the first distance, for example, the energized coil 802 is energized once for a short time, so that the filter element 20 switches to the second state. After the filling is completed, switch to the first state, for example, after the filling is completed, that is, after the filling port 101 is restored to the closed state, manually pull the first rope 40 to move the second distance, so that the filter element 20 returns to the first state, or the execution control component directly controls the rope fixing component 60 to pull the first rope 40 to move the second distance, so that the filter element 20 returns to the first state.

[0086] More specifically, a general filling gun has a metal filling rod, and thus a metal sensor can be provided to detect whether metal enters the filling port 101, thereby determining whether the filling method of the urea filling pipe 1000 is filling with a filling gun.

[0087] More specifically, Figures 3 to 5 As shown, the first elastic member 50 and the second elastic member 605 may be springs, or other elastic components that can undergo elastic deformation and meet usage requirements.

[0088] Another object of the present invention is to provide a vehicle, comprising the urea filling pipe 1000 according to an embodiment of the present invention.

[0089] Compared with the prior art, the advantages of the vehicle of the present invention are the same as those of the urea filling pipe 1000 of the embodiment of the present invention, which will not be described in detail here.

[0090] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0091] In the description of the present invention, it should be noted that, 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 indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0093] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A urea filling pipe, characterized in that: include: A tube body (10), the tube body (10) having a fluid circulation cavity (102) and a filling port (101) communicating with the fluid circulation cavity (102); A filter element (20), the filter element (20) having a first state and a second state. In the first state, the circumferential edge of the filter element (20) cooperates with the circumferential wall of the fluid circulation chamber (102) so that the filter element (20) filters the fluid flowing through the fluid circulation chamber (102); in the second state, at least a portion of the outer circumferential edge of the filter element (20) is separated from the inner circumferential wall of the fluid circulation chamber (102), and the filter element (20) is configured to be switchable between the first state and the second state.

2. The urea filling pipe according to claim 1, characterized in that: The invention also comprises a shell (30), wherein the shell (30) is arranged on the tube body (10), and the shell (30) has a accommodating chamber (301); the filter element (20) is configured to be movable between the fluid circulation chamber (102) and the accommodating chamber (301); in the first state, the filter element (20) is located in the fluid circulation chamber (102); in the second state, the filter element (20) is at least partially located in the accommodating chamber (301).

3. The urea filling pipe according to claim 2, characterized in that: It also includes a first rope (40) and a first elastic member (50), one end of the first rope (40) and one end of the first elastic member (50) are respectively connected to the filter element (20), the first rope (40) is used to pull the filter element (20), the other end of the first elastic member (50) is connected to the shell (30), and the first elastic member (50) is used to provide a restoring force opposite to the pulling direction of the first rope (40).

4. The urea filling pipe according to claim 3, characterized in that: It also includes a rope fixing assembly (60), wherein the rope fixing assembly (60) is connected to the other end of the first rope (40); The rope fixing assembly (60) is used to pull the first rope (40) a first distance to switch the filter element (20) from the first state to the second state and maintain it; The rope fixing assembly (60) is also used to pull the first rope (40) a second distance to switch the filter element (20) from the second state to the first state and maintain it.

5. The urea filling pipe according to claim 4, characterized in that: The first distance is smaller than the second distance.

6. The urea filling pipe according to claim 5, characterized in that: It also includes a first detection component and an execution control component that are communicatively connected, wherein the first detection component is used to detect whether the filling port (101) is in a closed state, and the execution control component is used to control the rope fixing component (60) to perform at least one setting action when the filling port (101) is in a closed state, wherein the setting action is to pull the first rope (40) to move a first distance and a second distance in sequence.

7. The urea filling pipe according to claim 4, characterized in that: The rope fixing assembly (60) comprises: A fixing member (601), wherein the fixing member (601) is arranged on the tube body (10); A slider (602), the slider (602) being connected to the other end of the first rope (40), and the slider (602) being slidably disposed on the fixing member (601) along a set direction; The slider (602) is used to pull the first rope (40) a first distance to switch the filter element (20) from the first state to the second state and maintain it; The slider (602) is also used to pull the first rope (40) a second distance so that the filter element (20) is switched from the second state to the first state and maintained therein.

8. The urea filling pipe according to claim 7, characterized in that: The rope fixing assembly (60) further comprises a second elastic member (605), the two ends of which are respectively connected to the fixing member (601) and the slider (602), and the second elastic member (605) is used to provide a restoring force in the opposite direction to the pulling direction of the first rope (40).

9. The urea filling pipe according to claim 7, characterized in that: It also includes a driving assembly, which is used to drive the slider (602) to slide along the set direction in a direction away from the first rope (40).

10. The urea filling pipe according to claim 9, characterized in that: The driving assembly comprises a second rope (801), wherein one end of the second rope (801) is connected to the slider (602), the second rope (801) is used to pull the slider (602) along the set direction and away from the first rope (40), and the other end of the second rope (801) extends outside the urea filling pipe; and / or, The driving assembly comprises a power-carrying coil (802) and a magnetic member (803) that cooperate with each other, one of the power-carrying coil (802) and the magnetic member (803) being arranged on the slider (602), and the other of the power-carrying coil (802) and the magnetic member (803) being arranged on the fixing member (601), and the power-carrying coil (802) and the magnetic member (803) being magnetically cooperated to apply a driving force to the slider (602) along the set direction and away from the first rope (40).

11. The urea filling pipe according to claim 2, characterized in that: The filter element (20) comprises a flexible skeleton (201) and a filter portion (202), wherein the circumferential edge of the filter portion (202) is connected to the flexible skeleton (201), and when the filter element (20) is located in the accommodating cavity (301), the flexible skeleton (201) is in a folded state; when the filter element (20) is located in the fluid circulation cavity (102), the flexible skeleton (201) is in an unfolded state and the circumferential edge of the flexible skeleton (201) is in sealing cooperation with the circumferential side wall of the fluid circulation cavity (102).

12. The urea filling pipe according to any one of claims 1 to 11, characterized in that: It also includes a second detection member, which is used to detect whether the filling method of the urea filling pipe is filling with a filling gun. The filter (20) is configured to switch to the second state when the filling method of the urea filling pipe is filling with a filling gun, and switch to the first state after the filling is completed.

13. A vehicle, characterized in that: It comprises a urea filling pipe according to any one of claims 1-12.

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