A waterproof grille structure for a pure electric bus

Abstract

The present invention relates to the technical field of waterproof grilles, and specifically relates to a waterproof grille structure for a pure electric bus, which includes a grille frame, a grille plate unit, a vertical limiting frame, a splash-proof net plate and a self-driving mechanism. The grille frame is in a rectangular frame shape. A plurality of shaft rods are rotatably connected at equal intervals between the inner side walls on both sides of the grille frame. A receiving groove is formed on the inner bottom surface of the grille frame. In the present invention, through the setting of the self-driving mechanism, when rainwater or other liquids splash or flow onto the hinge plates, the liquids are guided by the inclined hinge plates into the receiving groove, causing the liquid level in the receiving groove to rise. Through the hydraulic pressure of the liquid in the receiving groove on the self-driving mechanism, the self-driving mechanism is driven to drive a plurality of hinge plates to deflect towards the vertical state, so that the plurality of hinge plates overlap and close with each other, restricting rainwater or other liquids from passing through the grille frame, and taking into account the waterproof performance while realizing heat dissipation.

Description

Technical Field

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

[0002] Pure electric vehicles are a limited means to improve urban automobile exhaust pollution. In order to make rational use of 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, install air conditioning in the cabin, resulting in a significant increase in manufacturing costs and energy consumption, and then 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, external water flow can easily 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 is in the shape of a rectangular frame, with multiple shafts 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 for receiving water flow;

[0007] There are multiple grid plate units, each corresponding to a plurality of shafts. Each grid plate unit includes a hinge plate, wherein the middle position of the hinge plate is fixedly sleeved with the shaft, and the multiple grid plate units are arranged in parallel.

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

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

[0010] The splash screen is installed on one side of multiple 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 position 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, the inner bottom surface of the grille frame is provided with a venting groove one corresponding to the other end of the push rod, the tail plate is slidably connected to the venting groove one, a guide wheel is provided between the driving wheel and the tail plate, the guide wheel is rotatably connected to the adjacent side inner wall of the grille frame, the driving belt is wound around the driving wheel, and the other end of the driving 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 guide tube is fixedly connected to 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, and one side position at both ends of the hinge plate is fixedly connected to a rotating seat, and the rotating seat is rotatably connected to the adjacent vertical limit frame.

[0016] Furthermore, a plurality of rotating seats 2 are fixedly connected at equal distances on both ends of one side wall of the splash screen plate, the rotating seat 2 is rotatably connected to the adjacent rotating seat 1, and the splash 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 anti-splash screen.

[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 provided 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 component includes a closing plate, both ends of the closing plate are fixedly connected with rocker arms, the bottom ends of the rocker arms are rotatably connected with the top ends of the adjacent vertical limiting frames, track grooves are formed at both sides of the inner top wall of the air supply cavity, the top ends of the rocker arms are slidably connected with the inner walls of the adjacent track grooves, emptying grooves II corresponding to the rocker arms are formed on the inner bottom surface of the air supply cavity, and the emptying grooves II are used for avoiding the rocker arms. A guiding plate is fixedly connected to one side of the closing plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Through the setting of the self-driving mechanism, when rainwater or other liquids splash or flow onto the hinge plate, the liquid is guided by the inclined hinge plate into the receiving groove, causing the liquid level in the receiving groove to rise. Through the hydraulic pressure of the liquid in the receiving groove on the self-driving mechanism, the self-driving mechanism is driven to drive multiple hinge plates to deflect towards the vertical state, so that the multiple hinge plates overlap and close with each other, restricting rainwater or other liquids from passing through the grille frame. While facilitating the heat dissipation of the passenger car battery cavity or other equipment cavities, it prevents liquids from entering the cavity, taking into account the waterproof performance while achieving heat dissipation;

[0022] 2. Through the setting of the splash-proof net plate, when the grille unit is initially opened and suddenly impacted by a large flow of liquid or the liquid invades the hinge plate, part of the liquid is retarded by the water-absorbing material layer I, and part of the liquid that crosses the hinge plate is intercepted by the splash-proof net plate, avoiding the liquid directly impacting the equipment cavity or the battery cavity. When the hinge plate deflects towards the vertical state, the water-absorbing material layer II fits with the splash-proof net plate, and the liquid on the splash-proof net plate is adsorbed and transferred by the water-absorbing material layer II. Thus, after the hinge plate is opened, the splash-proof net plate remains in a breathable state, facilitating the discharge of air flow, and improving the waterproof effect of the grille frame through the splash-proof net 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, facilitating the air flow to be discharged from between the multiple hinge plates. When the multiple hinge plates are closed, the upward movement of the vertical limiting frame drives the rocker arm to deflect and move, causing the closing plate to open the closure of the air supply cavity. After the air flow enters the air supply cavity, it is discharged to the outside through the air outlet slot, so that after the multiple hinge plates are closed, the grille frame still maintains a certain ventilation and heat dissipation effect. Description of the Drawings

[0024] Figure 1 is the overall structural schematic diagram of the present invention;

[0025] Figure 2 is the overall back structural schematic diagram of the present invention;

[0026] Figure 3 is the structural schematic diagram of the grille unit of the present invention;

[0027] Figure 4 is a schematic structural view of the splash-proof net plate in the present invention;

[0028] Figure 5 is a schematic structural view of the grille unit in the unfolded state in the present invention;

[0029] Figure 6 is Figure 5 a partial enlarged view of part A of

[0030] Figure 7 is Figure 5 a partial enlarged view of part B of

[0031] Figure 8 is a schematic structural view of the grille unit in the closed state in the present invention;

[0032] Figure 9 is Figure 8 a partial enlarged view of part C of

[0033] Figure 10 is Figure 8 a partial enlarged view of part D of

[0034] Figure 11 is a schematic structural view of the self-driving mechanism in the present invention;

[0035] Figure 12 is a schematic structural view of the top of the grille frame in the present invention.

[0036] In the figure: 100, grille frame; 110, outrigger; 111, overflow tank; 120, receiving tank; 121, emptying tank one; 130, air supply chamber; 131, track groove; 140, air outlet slot; 150, emptying tank two; 160, shielding assembly; 161, rocker; 162, closing plate; 163, guiding plate; 170, shaft rod; 180, vertical plate; 200, grille unit; 210, hinge plate; 220, water-absorbing material layer one; 230, cushion strip; 240, mounting bracket; 250, water-absorbing material layer two; 260, rotating seat one; 300, vertical limiting frame; 400, splash-proof net plate; 410, rotating seat two; 500, self-driving mechanism; 510, driving wheel; 520, guiding wheel; 530, driving belt; 540, liquid guide pipe; 550, receiving pipe; 560, push rod; 561, piston plate; 562, tail plate; 570, compression spring; 580, liquid outlet pipe. Specific embodiments

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1 to 10 , in the embodiment of the present invention, a waterproof grille structure of a pure electric bus includes a grille frame 100, a grille plate unit 200, a vertical limiting frame 300, a splash-proof net plate 400 and a self-driving mechanism 500. The grille frame 100 is in a rectangular frame shape. A plurality of shaft rods 170 are rotatably connected at equal intervals between the inner side walls on both sides of the grille frame 100. A receiving groove 120 is formed on the inner bottom surface of the grille frame 100 for receiving water flow. The number of the grille plate units 200 is multiple, and the multiple grille plate units 200 correspond to the multiple shaft rods 170 one by one. The grille plate unit 200 includes a hinge plate 210. The middle position of the hinge plate 210 is fixedly sleeved with the shaft rod 170. The multiple grille plate units 200 are arranged in parallel. The number of the self-driving mechanisms 500 is two, and the two self-driving mechanisms 500 are respectively installed at both ends of the bottom side of the grille frame 100. The self-driving mechanism 500 is used to drive the lowermost grille plate unit 200 to deflect under the action of water pressure. The number of the vertical limiting frames 300 is two, and the two vertical limiting frames 300 are respectively located on both sides inside the grille frame 100. The vertical limiting frames 300 are rotatably connected with the multiple hinge plates 210. The splash-proof net plate 400 is installed on one side of the multiple hinge plates 210.

[0039] Specifically, during use, air flow passes through the grille frame 100 from right to left and is discharged. Normally, the self-driving mechanism 500 relaxes the restriction on the hinge plate 210, and the hinge plate 210 deflects to a position close to the horizontal under the action of the gravity of the vertical limiting frame 300, so that the multiple hinge plates 210 are in an open state, thereby facilitating the air flow 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 by the inclined hinge plate 210 into the receiving groove 120, causing the liquid level in the receiving groove 120 to rise. Through the hydraulic pressure of the liquid in the receiving groove 120 on the self-driving mechanism 500, the multiple hinge plates 210 are driven by the self-driving mechanism 500 to deflect to the vertical state, 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. While facilitating the heat dissipation of the bus battery cavity or other equipment cavities, it prevents liquids from entering the cavity, taking into account the waterproof performance while realizing heat dissipation.

[0040] Embodiment 1

[0041] AsFigures 3 to 12 As shown, in this embodiment, the self-driving mechanism 500 includes a receiving pipe 550 and a driving wheel 510. One end of the receiving pipe 550 is fixedly connected with a liquid guide pipe 540. One end of the liquid guide pipe 540 is fixedly communicated with the bottom end of the receiving groove 120. The other end of the receiving pipe 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 pipe 550. The receiving pipe 550 is fixedly installed at the bottom end position of the grille frame 100. A compression spring 570 is fixedly connected between the piston plate 561 and the inner wall of the other end of the receiving pipe 550. The driving wheel 510 is fixedly sleeved with the lowermost shaft rod 170. A driving belt 530 is connected between the other end of the push rod 560 and the driving wheel 510. The other end of the push rod 560 is fixedly connected with a tail plate 562. A discharge groove one 121 is formed in the inner bottom surface of the grille frame 100 corresponding to the position of the other end of the push rod 560. The tail plate 562 is slidably connected with the discharge groove one 121. A guide wheel 520 is arranged between the driving wheel 510 and the tail plate 562. The guide wheel 520 is rotatably connected with the inner wall of the adjacent side of the grille frame 100. The driving belt 530 is wound and connected with the driving wheel 510. The other end of the driving belt 530 bypasses the guide wheel 520 and is fixedly connected with the top end of the tail plate 562. The other end of the liquid guide pipe 540 is fixedly communicated with a liquid outlet pipe 580. The other end of the liquid outlet pipe 580 extends to the outside of the bottom end of the grille frame 100. An outrigger 110 is fixedly connected to the bottom end of the grille frame 100. Overflow grooves 111 are formed at both ends of the outrigger 110. A vertical plate 180 is fixedly connected to the middle position of the bottom surface of the grille frame 100. Water-absorbing material layers one 220 are fixedly connected to both side walls on the same side of the hinge plate 210. A cushion strip 230 is fixedly connected to the other side wall of the hinge plate 210. Rotating seats one 260 are fixedly connected to one side positions at both ends of the hinge plate 210. The rotating seats one 260 are rotatably connected with the adjacent vertical limiting frames 300.

[0042] In this embodiment, through the arrangement of the abduction member 110, it is convenient to receive the water flowing down from the hinge plate 210 and guide it into the receiving groove 120. When the liquid splashes onto the hinge plate 210, the liquid is absorbed through the arrangement of the first water-absorbing material layer 220, and at the same time, the liquid is inhibited from flowing upward along the outer side wall of the hinge plate 210 and crossing over the hinge plate 210, so as to achieve the deceleration of the liquid on the outer side wall of the hinge plate 210, thereby reducing the risk of the liquid crossing the inclined hinge plate 210 initially, facilitating the hinge plate 210 to guide the liquid to flow downward and collecting the liquid onto the receiving groove 120. The liquid in the receiving groove 120 flows into the receiving pipe 550 through the liquid guide pipe 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 onto the receiving groove 120 is greater than the speed at which the liquid is discharged from the liquid outlet pipe 580, the liquid level in the receiving groove 120 continuously rises, so that the acting force of the hydraulic pressure on the piston plate 561 gradually increases, thereby enabling the push rod 560 to move to the right against the elastic force of the compression spring 570. When the push rod 560 moves to the right, it drives the driving wheel 510 to rotate through the driving belt 530, thereby driving the corresponding shaft rod 170 to rotate. The rotation of the shaft rod 170 drives the lowermost hinge plate 210 to rotate in the vertical direction, so that a plurality of hinge plates 210 are closed. When the flow rate of the external liquid invading onto the hinge plate 210 is greater, the closing speed and amplitude of the hinge plate 210 are greater until a plurality of hinge plates 210 are completely closed. Through the arrangement of the overflow water groove 111, when the liquid level in the receiving groove 120 reaches the height of the overflow water groove 111, the excess liquid overflows from the overflow water groove 111, preventing the liquid level in the receiving groove 120 from crossing over the second emptying groove 150. When the flow rate of the external liquid invading onto the surface of the hinge plate 210 is small, the liquid level in the receiving groove 120 gradually drops, so that the hinge plate 210 gradually opens, increasing the heat dissipation efficiency.

[0043] Embodiment 2

[0044] Such as Figures 5 to 12As shown in the figure, in this embodiment, a plurality of second rotating seats 410 are fixedly connected at equal intervals at both ends of one side wall of the splash-proof net plate 400. The second rotating seats 410 are rotatably connected to the adjacent first rotating seats 260. The splash-proof net plate 400 is located between the two vertical limiting frames 300. An installation frame 240 is fixedly connected to the other side wall of the hinge plate 210. A second water-absorbing material layer 250 is fixedly connected to one side of the installation frame 240. The second water-absorbing material layer 250 is used to adsorb the liquid on the splash-proof net plate 400. A air supply cavity 130 is opened at the top end of the grille frame 100. An air outlet slot 140 is opened on the inner bottom surface of the air supply cavity 130. A shielding assembly 160 is arranged in the air supply cavity 130. The shielding assembly 160 is connected to the top ends of the two vertical limiting frames 300. When the vertical limiting frames 300 move downward, the air supply cavity 130 is closed by the shielding assembly 160. The shielding assembly 160 includes a closing plate 162. Rocker arms 161 are fixedly connected to both ends of the closing plate 162. The bottom end of the rocker arm 161 is rotatably connected to the top end of the adjacent vertical limiting frame 300. Track grooves 131 are opened at both sides of the inner top wall of the air supply cavity 130. The top end of the rocker arm 161 is slidably connected to the inner wall of the adjacent track groove 131. Emptying grooves two 150 are opened on the inner bottom surface of the air supply cavity 130 corresponding to the positions of the rocker arms 161. The emptying grooves two 150 are used to avoid the rocker arms 161. A guiding plate 163 is fixedly connected to one side of the closing plate 162.

[0045] During specific implementation, through the setting of the splash-proof net plate 400, when the grid plate unit 200 is initially opened and suddenly impacted by a large flow of liquid or invaded the hinge plate 210, part of the liquid is retarded by the first water-absorbing material layer 220. The splash-proof net plate 400 intercepts part of the liquid that crosses the hinge plate 210, avoiding the liquid directly impacting the equipment cavity or the battery cavity. When the hinge plate 210 deflects towards the vertical state, the second water-absorbing material layer 250 is attached to the splash-proof net plate 400. The liquid on the splash-proof net plate 400 is adsorbed and transferred by the second water-absorbing material layer 250. Thus, after the hinge plate 210 is opened, the splash-proof net plate 400 remains breathable, facilitating the discharge of air flow. And the discharged air dries the first water-absorbing material layer 220 and the second water-absorbing material layer 250. Through the setting of the shielding assembly 160 and the air supply cavity 130, when the hinge plate 210 is in the open state, the closing plate 162 closes the air supply cavity 130, facilitating the discharge of air flow from between the multiple hinge plates 210. When the multiple hinge plates 210 are closed, the upward movement of the vertical limiting frame 300 drives the rocker arm 161 to deflect and move, causing the closing plate 162 to open the closure of the air supply cavity 130. After the air flow enters the air supply cavity 130, it is discharged to the outside through the air outlet slot 140. Through the setting of the guiding plate 163, the guiding plate 163 guides the air flow entering the air supply cavity 130, facilitating the discharge of the air flow after it enters the air supply cavity 130.

[0046] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0047] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waterproof grille structure for a pure electric bus, characterized in that, Comprising: A grille frame (100), the grille frame (100) being in the shape of a rectangular frame. Between the inner side walls on both sides of the grille frame (100), a plurality of shaft rods (170) are rotatably connected at equal intervals. A receiving groove (120) is formed on the inner bottom surface of the grille frame (100), and the receiving groove (120) is used for receiving water flow. A plurality of grille plate units (200), corresponding one by one to the plurality of shaft rods (170). Each grille plate unit (200) includes a hinge plate (210), and the middle position of the hinge plate (210) is fixedly sleeved with the shaft rod (170). The plurality of grille plate units (200) are arranged in parallel. Two self-driving mechanisms (500), respectively installed at both ends of the bottom side of the grille frame (100). The self-driving mechanism (500) is used to drive the lowermost grille plate unit (200) to deflect under the action of water pressure. Two vertical limiting frames (300), respectively located on both sides inside the grille frame (100). The vertical limiting frames (300) are rotatably connected to the plurality of hinge plates (210). A splash-proof net plate (400), 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) includes a receiving pipe (550) and a driving wheel (510). One end of the receiving pipe (550) is fixedly connected with a liquid guide pipe (540), and one end of the liquid guide pipe (540) is fixedly communicated with the bottom end of the receiving groove (120). The other end of the receiving pipe (550) is slidably sleeved with a push rod (560). One end of the push rod (560) is fixedly connected with a piston plate (561), and the piston plate (561) is slidably sleeved with the inner wall of the receiving pipe (550). The receiving pipe (550) is fixedly installed at the bottom end of the grille frame (100). A compression spring (570) is fixedly connected between the piston plate (561) and the inner wall of the other end of the receiving pipe (550). The driving wheel (510) is fixedly sleeved with the lowermost shaft rod (170). 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, wherein, The other end of the push rod (560) is fixedly connected with a tail plate (562). A first emptying groove (121) is formed on the inner bottom surface of the grille frame (100) corresponding to the other end of the push rod (560). The tail plate (562) is slidably connected with the first emptying groove (121). A guiding wheel (520) is arranged between the driving wheel (510) and the tail plate (562). The guiding wheel (520) is rotatably connected with the adjacent 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) bypasses the guiding wheel (520) and is fixedly connected with the top end of the tail plate (562).

4. The waterproof grille structure of a pure electric bus according to claim 3, characterized in that, The other end of the liquid guide tube (540) is fixedly connected and communicated with 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 grille frame (100).

5. The waterproof grille structure of a pure electric bus according to claim 3, characterized in that An outrigger (110) is fixedly connected to the bottom end of the grille frame (100). Overflow water troughs (111) are provided at both ends of the outrigger (110), and a vertical plate (180) is fixedly connected to the middle position of the bottom surface of the grille frame (100).

6. The waterproof grille structure of a pure electric bus according to claim 1, characterized in that, Absorbent material layers I (220) are fixedly connected to both side walls on the same side of the hinge plate (210). A cushion strip (230) is fixedly connected to the other side wall of the hinge plate (210). Rotating seats I (260) are fixedly connected to one side of both ends of the hinge plate (210), and the rotating seats I (260) are rotatably connected to the adjacent vertical limiting frames (300).

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

8. The waterproof grille structure of a pure electric bus according to claim 7, characterized in that, An installation frame (240) is fixedly connected to the other side wall of the hinge plate (210). An absorbent material layer II (250) is fixedly connected to one side of the installation frame (240), and the absorbent material layer II (250) is used for adsorbing the liquid on the splash-proof net 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 end 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 assembly (160) is arranged in the air supply cavity (130). The shielding assembly (160) is connected to the top ends of the two vertical limiting frames (300). When the vertical limiting frames (300) move downward, the air supply cavity (130) is closed through the shielding assembly (160).

10. The waterproof grille structure of a pure electric bus according to claim 9, characterized in that, The shielding assembly (160) includes a closing plate (162). Rocker arms (161) are fixedly connected to both ends of the closing plate (162). The bottom ends of the rocker arms (161) are rotatably connected to the top ends of the adjacent vertical limiting frames (300). Track grooves (131) are provided at both sides of the inner top wall of the air supply cavity (130). The top ends of the rocker arms (161) are slidably connected to the inner walls of the adjacent track grooves (131). Emptying grooves II (150) are provided on the inner bottom surface of the air supply cavity (130) corresponding to the rocker arms (161), and the emptying grooves II (150) are used for avoiding the rocker arms (161). A guiding plate (comment should be made here: it seems there is a missing word in the original Chinese for a more accurate English expression, but based on the given text) (163) is fixedly connected to one side of the closing plate (162).

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