Waterproof grille structure of pure electric bus

Abstract

The invention relates to the technical field of waterproof grids, in particular to a waterproof grid structure of a pure electric bus, which comprises a grid frame, a grid plate unit, a vertical limiting frame, a splash-proof screen plate and a self-driving mechanism, the grid frame is in a rectangular frame shape, and a plurality of shaft rods are rotatably connected between the inner side walls of the two sides of the grid frame at equal intervals; a bearing groove is formed in the inner bottom face of the grating frame. According to the invention, through the arrangement of the self-driving mechanism, when rainwater or other liquid splashes or flows onto the hinge plates, the liquid is guided into the receiving groove by the inclined hinge plates, so that the liquid level in the receiving groove rises, and through the hydraulic pressure of the liquid in the receiving groove to the self-driving mechanism, the plurality of hinge plates are driven by the self-driving mechanism to deflect to a vertical state; the hinge plates are mutually overlapped and closed, rainwater or other liquid is prevented from penetrating through the grating frame, and the waterproof performance is achieved while heat dissipation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof grilles, in particular to a waterproof grille structure of a pure electric bus. Background Art

[0002] Pure electric vehicles are a limited means to improve urban automobile exhaust pollution. In order to reasonably utilize limited space, pure electric buses generally install batteries in the cabin. In order to ensure the heat dissipation of equipment or batteries in the cabin, current new energy bus companies, in order to ensure the heat dissipation in the cabin, first, install air conditioning for air circulation, which greatly increases manufacturing costs and energy consumption, and second, install ventilation grilles. However, although the existing ventilation grilles have good ventilation effects and low costs, their waterproof performance is poor. Rainwater can easily pass through the grilles obliquely into the chamber. In addition, when washing the car or when the vehicle passes through a puddle, the external water flow is also easy to splash through the grille, causing water to enter the equipment cavity or the battery cavity. In this regard, a waterproof grille structure is proposed. Summary of the invention

[0003] The object of the present invention is to provide a waterproof grille structure for a pure electric bus to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A waterproof grille structure for a pure electric bus, comprising:

[0006] A grid frame, the grid frame is in the shape of a rectangular frame, a plurality of shafts are equidistantly connected to the inner side walls of the grid frame, and a receiving groove is provided on the inner bottom surface of the grid frame, and the receiving groove is used to receive the water flow;

[0007] There are multiple grid plate units, each of which corresponds to a plurality of shaft rods. The grid plate units include hinge plates, the middle position of the hinge plates is fixedly sleeved with the shaft rods, and the multiple grid plate units are arranged in parallel;

[0008] There are two self-driving mechanisms, which are respectively installed at two ends of the bottom side of the grid frame, and are used to drive the bottom grid plate unit to deflect under the action of water pressure;

[0009] There are two vertical limit frames, which are respectively located at two sides of the grid frame, and are rotatably connected to the plurality of hinge plates;

[0010] The splash screen is installed on one side of the plurality of hinge panels.

[0011] Furthermore, the self-driving mechanism includes a receiving tube and a driving wheel, one end of the receiving tube is fixedly connected to a liquid guide tube, one end of the liquid guide tube is fixedly connected to the bottom end of the receiving groove, the other end of the receiving tube is slidably sleeved with a push rod, one end of the push rod is fixedly connected to a piston plate, the piston plate is slidably sleeved with the inner wall of the receiving tube, the receiving tube is fixedly installed at the bottom end of the grid frame, an extrusion spring is fixedly connected between the piston plate and the inner wall of the other end of the receiving tube, the driving wheel is fixedly sleeved with the lowest shaft rod, and a driving belt is connected between the other end of the push rod and the driving wheel.

[0012] Furthermore, the other end of the push rod is fixedly connected to a tail plate, a venting groove is provided on the inner bottom surface of the grille frame corresponding to the other end of the push rod, the tail plate is slidably connected to the venting groove, a guide wheel is provided between the drive wheel and the tail plate, the guide wheel is rotatably connected to the adjacent side inner wall of the grille frame, the drive belt is wound around the drive wheel, and the other end of the drive belt is fixedly connected to the top end of the tail plate after passing around the guide wheel.

[0013] Furthermore, the other end of the liquid guiding tube is fixedly connected with a liquid outlet tube, and the other end of the liquid outlet tube extends to the outside of the bottom end of the grid frame.

[0014] Furthermore, the bottom end of the grid frame is fixedly connected with an outward extension piece, both ends of the outward extension piece are provided with overflow grooves, and the middle position of the bottom surface of the grid frame is fixedly connected with a vertical plate.

[0015] Furthermore, the two side walls on the same side of the hinge plate are fixedly connected with a water-absorbing material layer, the other side wall of the hinge plate is fixedly connected with a pad strip, one side position at both ends of the hinge plate is fixedly connected with a rotating seat, and the rotating seat is rotatably connected to an adjacent vertical limiting frame.

[0016] Furthermore, a plurality of rotating seats 2 are fixedly connected at equal distances at both ends of one side wall of the splash-proof screen plate, the rotating seat 2 is rotatably connected to the adjacent rotating seat 1, and the splash-proof screen plate is located between two vertical limit frames.

[0017] Furthermore, a mounting frame is fixedly connected to the other side wall of the hinge plate, a second water-absorbing material layer is fixedly connected to one side of the mounting frame, and the second water-absorbing material layer is used to absorb liquid on the splash-proof mesh plate.

[0018] Furthermore, an air supply cavity is provided at the top position of the grille frame, an air outlet slot is provided on the inner bottom surface of the air supply cavity, a shielding assembly is arranged in the air supply cavity, the shielding assembly is connected to the top ends of two vertical limit frames, and the air supply cavity is closed by the shielding assembly when the vertical limit frames move downward.

[0019] Furthermore, the shielding assembly includes a closing plate, both ends of which are fixedly connected with rockers, the bottom end of the rocker is rotatably connected to the top end of the vertical limit frame on the adjacent side, track grooves are provided on both sides of the inner top wall of the air supply chamber, the top end of the rocker is slidably connected to the inner wall of the track groove on the adjacent side, and a venting groove 2 is provided on the inner bottom surface of the air supply chamber corresponding to the position of the rocker, the venting groove 2 is used to avoid the rocker, and a guide plate is fixedly connected to one side of the closing plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Through the setting of the self-driving mechanism, when rainwater or other liquid splashes or flows onto the hinge plate, the liquid is guided into the receiving groove by the inclined hinge plate, so that the liquid level in the receiving groove rises. Through the hydraulic pressure of the liquid in the receiving groove on the self-driving mechanism, the self-driving mechanism drives multiple hinge plates to deflect to a vertical state, so that multiple hinge plates overlap and close each other, restricting rainwater or other liquids from passing through the grid frame, facilitating heat dissipation in the battery cavity or other equipment cavity of the bus, while preventing liquid from entering the cavity, achieving heat dissipation while taking into account waterproof performance;

[0022] 2. Through the setting of the splash-proof mesh plate, when the grid plate unit is initially opened and a large amount of liquid suddenly impacts or invades the hinge plate, part of the liquid is delayed by the water-absorbing material layer 1, and the splash-proof mesh plate intercepts part of the liquid that crosses the hinge plate to prevent the liquid from directly impacting the equipment cavity or the battery cavity. When the hinge plate deflects to a vertical state, the water-absorbing material layer 2 fits with the splash-proof mesh plate, and the liquid on the splash-proof mesh plate is adsorbed and transferred by the water-absorbing material layer 2, so that after the hinge plate is opened, the splash-proof mesh plate remains breathable, which facilitates the discharge of airflow, and improves the waterproof effect of the grid frame through the splash-proof mesh plate;

[0023] 3. Through the setting of the shielding component and the air supply cavity, when the hinge plate is in the open state, the closing plate closes the air supply cavity, which facilitates the airflow to be discharged from between multiple hinge plates. When multiple hinge plates are closed, the upward movement of the vertical limit frame drives the rocker to deflect and move, so that the closing plate opens the seal on the air supply cavity. After the air enters the air supply cavity, it is discharged to the outside through the air outlet slot, so that after multiple hinge plates are closed, the grille frame still maintains a certain ventilation and heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall back structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the grid plate unit structure in the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the splash-proof screen plate in the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the grid plate unit in the present invention in an expanded state;

[0029] Figure 6 yes Figure 5 A local enlarged view of point A;

[0030] Figure 7 yes Figure 5 A partial enlarged view of point B;

[0031] Figure 8 It is a schematic structural diagram of the grid plate unit in the present invention in a closed state;

[0032] Fig. 9 yes Figure 8 A partial enlarged view of point C;

[0033] Fig.10 yes Figure 8 A partial enlarged view of point D;

[0034] Fig.11 It is a schematic diagram of the structure of the self-driving mechanism in the present invention;

[0035] Fig.12 It is a schematic diagram of the top structure of the grid frame in the present invention.

[0036] In the figure: 100, grille frame; 110, extension piece; 111, overflow trough; 120, receiving trough; 121, venting trough 1; 130, air supply cavity; 131, track trough; 140, air outlet trough; 150, venting trough 2; 160, shielding assembly; 161, rocker; 162, closing plate; 163, guide plate; 170, shaft; 180, vertical plate; 200, grille unit; 210, hinge plate; 220, water-absorbing material layer 1 ; 230, pad strip; 240, mounting frame; 250, water-absorbing material layer 2; 260, rotating seat 1; 300, vertical limit frame; 400, splash-proof screen; 410, rotating seat 2; 500, self-driving mechanism; 510, driving wheel; 520, guide wheel; 530, driving belt; 540, liquid guide tube; 550, receiving tube; 560, push rod; 561, piston plate; 562, tail plate; 570, extrusion spring; 580, liquid outlet pipe. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 10 In an embodiment of the present invention, a waterproof grille structure of a pure electric bus includes a grille frame 100, a grille unit 200, a vertical limit frame 300, a splash screen 400 and a self-driving mechanism 500. The grille frame 100 is a rectangular frame. A plurality of shafts 170 are equidistantly connected to the inner side walls of the grille frame 100. A receiving groove 120 is provided on the inner bottom surface of the grille frame 100. The receiving groove 120 is used to receive water flow. The number of the grille units 200 is multiple, and the multiple grille units 200 correspond to the multiple shafts 170 one by one. The grille unit 200 includes a hinge plate 210, and the hinge plate 210 is provided with a hinge plate 220. The middle position of 10 is fixedly sleeved with the shaft 170, a plurality of grating units 200 are arranged in parallel, there are two self-driving mechanisms 500, which are respectively installed at the two ends of the bottom side of the grating frame 100, and the self-driving mechanisms 500 are used to drive the lowest grating unit 200 to deflect under the action of water pressure, there are two vertical limit frames 300, which are respectively located at the two sides of the inside of the grating frame 100, the vertical limit frames 300 are rotatably connected with the plurality of hinge plates 210, and the splash-proof mesh plate 400 is installed at one side of the plurality of hinge plates 210.

[0039] Specifically, when in use, the airflow passes through the grille frame 100 from right to left and is discharged. Under normal circumstances, the self-driving mechanism 500 relaxes the restriction on the hinge plate 210, and the hinge plate 210 is deflected to a nearly horizontal position under the gravity of the vertical limit frame 300, so that the multiple hinge plates 210 are in an open state, thereby facilitating the airflow to pass through the grille frame 100 and increasing the heat dissipation effect of the grille frame 100. When rainwater or other liquids splash or flow onto the hinge plate 210, the liquid is guided into the receiving groove 120 by the inclined hinge plate 210, so that the liquid level in the receiving groove 120 rises, and the self-driving mechanism 500 is driven by the liquid in the receiving groove 120 to deflect to a vertical state through the self-driving mechanism 500, so that the multiple hinge plates 210 overlap and close with each other, restricting rainwater or other liquids from passing through the grille frame 100, facilitating the heat dissipation of the battery cavity or other equipment cavity of the bus, and preventing liquid from entering the cavity, so as to achieve heat dissipation while taking into account waterproof performance.

[0040] Embodiment 1

[0041] like Figure 3 to Figure 12 As shown, in this embodiment, the self-driving mechanism 500 includes a receiving tube 550 and a driving wheel 510, one end of the receiving tube 550 is fixedly connected to a liquid guide tube 540, one end of the liquid guide tube 540 is fixedly connected to the bottom end of the receiving groove 120, the other end of the receiving tube 550 is slidably sleeved with a push rod 560, one end of the push rod 560 is fixedly connected to a piston plate 561, the piston plate 561 is slidably sleeved with the inner wall of the receiving tube 550, and the receiving tube 550 is fixedly installed at the bottom of the grid frame 100. The end position of the push rod 560 is fixedly connected with the inner wall of the other end of the receiving tube 550 by a compression spring 570, the driving wheel 510 is fixedly sleeved with the lowest shaft rod 170, the other end of the push rod 560 is connected with a driving belt 530, the other end of the push rod 560 is fixedly connected with a tail plate 562, the inner bottom surface of the grid frame 100 is provided with a venting groove 121 corresponding to the other end of the push rod 560, and the tail plate 562 is slidably connected with the venting groove 121. Then, a guide wheel 520 is arranged between the driving wheel 510 and the tail plate 562, and the guide wheel 520 is rotatably connected to the inner wall of the adjacent side of the grid frame 100, and the driving belt 530 is wound around the driving wheel 510, and the other end of the driving belt 530 is fixedly connected to the top of the tail plate 562 after passing the guide wheel 520, and the other end of the liquid guide tube 540 is fixedly connected to the liquid outlet pipe 580, and the other end of the liquid outlet pipe 580 extends to the outside of the bottom end of the grid frame 100, and the grid frame 100 is connected to the bottom end of the grid frame 100. 0 is fixedly connected to an extension piece 110 at the bottom end, overflow grooves 111 are provided at both ends of the extension piece 110, a vertical plate 180 is fixedly connected to the middle position of the bottom surface of the grid frame 100, two side walls on the same side of the hinge plate 210 are fixedly connected to a water-absorbing material layer 220, and a cushion strip 230 is fixedly connected to the other side wall of the hinge plate 210, and one side position of both ends of the hinge plate 210 is fixedly connected to a rotating seat 260, and the rotating seat 260 is rotatably connected to the adjacent vertical limit frame 300.

[0042] In this embodiment, the arrangement of the extension piece 110 facilitates the water flow from the hinge plate 210 to be received and guided into the receiving groove 120. When liquid splashes onto the hinge plate 210, the liquid is absorbed by the arrangement of the water-absorbing material layer 1 220, and at the same time, the liquid is restrained from flowing upward along the outer wall of the hinge plate 210 and passing over the hinge plate 210, so as to achieve the speed reduction of the liquid on the outer wall of the hinge plate 210, thereby reducing the risk of the liquid initially passing over the inclined hinge plate 210, and facilitating the hinge plate 210 to guide the liquid to flow downward and collect the liquid on the receiving groove 120. The liquid in the receiving groove 120 flows into the receiving tube 550 through the liquid guide tube 540, and part of the liquid in the receiving groove 120 is discharged from the liquid outlet pipe 580. When the speed at which the liquid collects on the receiving groove 120 is greater than the speed at which the liquid is discharged by the liquid outlet pipe 580, the liquid level in the receiving groove 120 continuously moves upward, so that the hydraulic pressure acts on the piston plate 561. The force gradually increases, so that the push rod 560 overcomes the elastic force of the extrusion spring 570 and moves to the right. When the push rod 560 moves to the right, the drive belt 530 pulls the drive wheel 510 to rotate, thereby driving the corresponding shaft rod 170 to rotate. The rotation of the shaft rod 170 drives the lowest hinge plate 210 to rotate in the vertical direction, so that the multiple hinge plates 210 are closed. When the flow rate of external liquid invading the hinge plate 210 is larger, the closing speed and amplitude of the hinge plate 210 are larger, until the multiple hinge plates 210 are completely closed. Through the setting of the overflow groove 111, when the liquid level in the receiving groove 120 reaches the height of the overflow groove 111, the excess liquid overflows from the overflow groove 111 to prevent the liquid level in the receiving groove 120 from exceeding the emptying groove 150. When the flow rate of external liquid invading the surface of the hinge plate 210 is small, the liquid level in the receiving groove 120 gradually decreases, so that the hinge plate 210 is gradually opened, thereby increasing the heat dissipation efficiency.

[0043] Embodiment 2

[0044] like Figure 5 to Figure 12As shown, in the present embodiment, a plurality of rotating seats 410 are fixedly connected at equal distances to both ends of one side wall of the splash-proof screen plate 400, and the rotating seat 410 is rotatably connected to the adjacent rotating seat 1 260, and the splash-proof screen plate 400 is located between two vertical limit frames 300, and the other side wall of the hinge plate 210 is fixedly connected to a mounting frame 240, and one side of the mounting frame 240 is fixedly connected to a water-absorbing material layer 250, and the water-absorbing material layer 250 is used to absorb the liquid on the splash-proof screen plate 400, and an air supply cavity 130 is provided at the top position of the grid frame 100, and an air outlet slot 140 is provided on the inner bottom surface of the air supply cavity 130, and a shielding component 160 is arranged in the air supply cavity 130, and the shielding component 160 is connected to the two vertical limit frames 300. The top of the vertical limit frame 300 is connected, and the air supply chamber 130 is closed by the shielding component 160 when the vertical limit frame 300 moves downward. The shielding component 160 includes a closing plate 162, and both ends of the closing plate 162 are fixedly connected with a rocker 161. The bottom end of the rocker 161 is rotatably connected to the top of the vertical limit frame 300 on the adjacent side. Track grooves 131 are opened on both sides of the inner top wall of the air supply chamber 130, and the top of the rocker 161 is slidably connected to the inner wall of the track groove 131 on the adjacent side. A venting groove 150 is opened on the inner bottom surface of the air supply chamber 130 corresponding to the position of the rocker 161. The venting groove 150 is used to avoid the rocker 161, and a guide plate 163 is fixedly connected to one side of the closing plate 162.

[0045] In specific implementation, by setting the splash-proof mesh plate 400, when the grid unit 200 is initially opened and is suddenly impacted by a large flow of liquid or invades the hinge plate 210, part of the liquid is delayed by the water-absorbing material layer 1 220, and the splash-proof mesh plate 400 intercepts part of the liquid that crosses the hinge plate 210 to prevent the liquid from directly impacting the equipment cavity or the battery cavity. When the hinge plate 210 deflects to a vertical state, the water-absorbing material layer 250 fits with the splash-proof mesh plate 400, and the liquid on the splash-proof mesh plate 400 is adsorbed and transferred by the water-absorbing material layer 250, so that after the hinge plate 210 is opened, the splash-proof mesh plate 400 remains breathable, which is convenient for the discharge of airflow, and the water-absorbing material is absorbed by the discharged gas. Layer 1 220 and water-absorbing material layer 2 250 are dried, and through the setting of the shielding component 160 and the air supply chamber 130, when the hinge plate 210 is in the open state, the closing plate 162 closes the air supply chamber 130, so that the airflow is convenient to be discharged from between the multiple hinge plates 210. When the multiple hinge plates 210 are closed, the upward movement of the vertical limit frame 300 drives the rocker 161 to deflect and move, so that the closing plate 162 opens the seal on the air supply chamber 130, and the airflow enters the air supply chamber 130 and is discharged to the outside through the air outlet slot 140. Through the setting of the guide plate 163, the guide plate 163 guides the airflow entering the air supply chamber 130, so that the airflow enters the air supply chamber 130 and is convenient to be discharged.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waterproof grille structure for a pure electric bus, characterized in that: include: A grille frame (100), the grille frame (100) is in the shape of a rectangular frame, a plurality of shafts (170) are equidistantly rotatably connected between inner side walls on both sides of the grille frame (100), a receiving groove (120) is provided on the inner bottom surface of the grille frame (100), and the receiving groove (120) is used to receive water flow; There are a plurality of grid plate units (200), each of the grid plate units (200) corresponds to a plurality of shaft rods (170) on a one-to-one basis, the grid plate unit (200) comprises a hinge plate (210), a middle position of the hinge plate (210) is fixedly sleeved with the shaft rod (170), and the plurality of grid plate units (200) are arranged in parallel; There are two self-driving mechanisms (500), which are respectively installed at two ends of the bottom side of the grid frame (100), and the self-driving mechanisms (500) are used to drive the bottom grid plate unit (200) to deflect under the action of water pressure; There are two vertical limit frames (300), the two vertical limit frames (300) are respectively located at two sides of the grid frame (100), and the vertical limit frames (300) are rotatably connected to the plurality of hinge plates (210); The splash-proof screen plate (400) is installed on one side of the plurality of hinge plates (210).

2. The waterproof grille structure of a pure electric bus according to claim 1, characterized in that: The self-driving mechanism (500) comprises a receiving tube (550) and a driving wheel (510), one end of the receiving tube (550) is fixedly connected with a liquid guide tube (540), one end of the liquid guide tube (540) is fixedly connected with the bottom end of the receiving groove (120), the other end of the receiving tube (550) is slidably sleeved with a push rod (560), one end of the push rod (560) is fixedly connected with a piston plate (561), the piston plate (561) is slidably sleeved with the inner wall of the receiving tube (550), the receiving tube (550) is fixedly installed at the bottom end of the grid frame (100), an extrusion spring (570) is fixedly connected between the piston plate (561) and the inner wall of the other end of the receiving tube (550), the driving wheel (510) is fixedly sleeved with the lowest shaft rod (170), and a driving belt (530) is connected between the other end of the push rod (560) and the driving wheel (510).

3. The waterproof grille structure of a pure electric bus according to claim 2, characterized in that: The other end of the push rod (560) is fixedly connected to a tail plate (562), and a venting groove (121) is provided on the inner bottom surface of the grille frame (100) at a position corresponding to the other end of the push rod (560). The tail plate (562) is slidably connected to the venting groove (121). A guide wheel (520) is provided between the driving wheel (510) and the tail plate (562), and the guide wheel (520) is rotatably connected to the adjacent side inner wall of the grille frame (100). The driving belt (530) is wound around the driving wheel (510), and the other end of the driving belt (530) is fixedly connected to the top of the tail plate (562) after passing around the guide wheel (520).

4. The waterproof grille structure of a pure electric bus according to claim 3, characterized in that: The other end of the liquid guiding tube (540) is fixedly connected to a liquid outlet tube (580), and the other end of the liquid outlet tube (580) extends to the outside of the bottom end of the grid frame (100).

5. The waterproof grille structure of a pure electric bus according to claim 3, characterized in that: The bottom end of the grid frame (100) is fixedly connected to an outward extension piece (110), and overflow grooves (111) are provided at both ends of the outward extension piece (110). A vertical plate (180) is fixedly connected to the middle of the bottom surface of the grid frame (100).

6. The waterproof grille structure of a pure electric bus according to claim 1, characterized in that: The two side walls on the same side of the hinge plate (210) are both fixedly connected to a water-absorbing material layer (220), the other side wall of the hinge plate (210) is fixedly connected to a cushion strip (230), one side of both ends of the hinge plate (210) is both fixedly connected to a rotating seat (260), and the rotating seat (260) is rotatably connected to an adjacent vertical limiting frame (300).

7. The waterproof grille structure of a pure electric bus according to claim 6, characterized in that: A plurality of rotating seats 2 (410) are fixedly connected at equal distances at both ends of one side wall of the splash-proof screen plate (400), and the rotating seat 2 (410) is rotatably connected to the adjacent rotating seat 1 (260). The splash-proof screen plate (400) is located between two vertical limiting frames (300).

8. The waterproof grille structure of a pure electric bus according to claim 7, characterized in that: The other side wall of the hinge plate (210) is fixedly connected to a mounting frame (240), and one side of the mounting frame (240) is fixedly connected to a second water-absorbing material layer (250), wherein the second water-absorbing material layer (250) is used to absorb liquid on the splash-proof mesh plate (400).

9. The waterproof grille structure of a pure electric bus according to claim 7, characterized in that: An air supply cavity (130) is provided at the top of the grille frame (100), an air outlet slot (140) is provided on the inner bottom surface of the air supply cavity (130), a shielding component (160) is provided in the air supply cavity (130), the shielding component (160) is connected to the tops of two vertical limiting frames (300), and when the vertical limiting frames (300) move downward, the air supply cavity (130) is closed by the shielding component (160).

10. The waterproof grille structure of a pure electric bus according to claim 9, characterized in that: The shielding assembly (160) comprises a closing plate (162), both ends of which are fixedly connected to rocking arms (161), the bottom end of the rocking arm (161) is rotatably connected to the top end of the vertical limiting frame (300) on the adjacent side, track grooves (131) are provided on both sides of the inner top wall of the air supply cavity (130), the top end of the rocking arm (161) is slidably connected to the inner wall of the track groove (131) on the adjacent side, the inner bottom surface of the air supply cavity (130) is provided with a second venting groove (150) at a position corresponding to the rocking arm (161), the second venting groove (150) is used to avoid the rocking arm (161), and a guide plate (163) is fixedly connected to one side of the closing plate (162).

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