A new dustproof and waterproof chassis structure

Abstract

The application discloses a novel dustproof and waterproof chassis structure, relates to the field of chassis technology of an explosive-handling robot, and comprises a base and a cover plate installed on the base; an air inlet heat exchange assembly is arranged inside the base, an air inlet end of the air inlet heat exchange assembly extends to the outside of the base, and an air outlet end of the air inlet heat exchange assembly is arranged at an inner side edge of the base; a side hole is formed in one side of the base; an air outlet assembly is slidably inserted into the side hole, one end of the air outlet assembly is connected with a telescopic assembly arranged inside the base, and the air outlet assembly protrudes from the outer wall of the base when the telescopic assembly is in an elongated state. The application solves the pain points of "full-closed heat dissipation failure and open heat dissipation hole sealing failure", and guarantees the long-term stable operation of core components such as driving motors and sensors.

Description

Technical Field

[0001] This application relates to the field of bomb disposal robot chassis technology, and in particular to a novel dustproof and waterproof chassis structure. Background Technology

[0002] As the core load-bearing and protective component, the chassis of the bomb disposal robot must meet two major requirements: first, to cope with complex outdoor working conditions with high-level dust and water protection, blocking the intrusion of media such as construction debris dust, industrial metal dust, rainwater and sewage, and avoiding damage to internal precision components; second, to provide effective heat dissipation for the continuously operating drive motor, control module, sensors and transmission mechanism, and prevent heat accumulation from causing component failure.

[0003] There is an irreconcilable core contradiction between the sealing and heat dissipation requirements of the bomb disposal robot chassis. Most chassis adopt a fully enclosed design, relying on an integrated shell and multiple seals to isolate the inside and outside. However, the drive motor and control module continuously generate heat when working. The heat cannot be dissipated in the enclosed space, and the temperature often exceeds 45°C (the motor locally exceeds 60°C), which is far beyond the safety threshold of industrial-grade components. This leads to a reduction in motor life, errors in sensor data, and affects the accuracy of bomb disposal positioning. If louvered holes are opened for heat dissipation and dustproof nets are added, fine dust particles in the bomb disposal scenario can easily adhere to the net surface, and dust can also enter through the gaps between the net and the holes.

[0004] While a fully enclosed design can meet dust and water protection requirements, heat accumulation can reduce the reliability of core components. Conversely, while ventilation holes can alleviate heat dissipation pressure, dust blockage and intrusion can introduce new risks of failure. The inability to simultaneously address both issues is a key technical challenge hindering the long-term stable operation of bomb disposal robots. Utility Model Content

[0005] To address the issues of dust and water resistance as well as efficient heat exchange, this application provides a novel dust and water resistant chassis structure.

[0006] The novel dustproof and waterproof chassis structure provided in this application adopts the following technical solution:

[0007] A novel dustproof and waterproof chassis structure includes a base and a cover plate mounted on the base;

[0008] An air intake heat exchange assembly is disposed inside the base, with the air intake end of the air intake heat exchange assembly extending to the outside of the base and the exhaust end of the air intake heat exchange assembly disposed at the inner edge of the base.

[0009] Side hole, the side hole being formed on one side of the base;

[0010] An exhaust assembly is slidably inserted into the side hole. One end of the exhaust assembly is connected to a telescopic assembly located inside the base. When the telescopic assembly is extended, the exhaust assembly protrudes from the outer wall of the base to connect the interior of the base with the outside air. When the telescopic assembly is retracted, the exhaust assembly forms a sealing fit with the side hole.

[0011] By adopting the above technical solution, in the non-heat exchange state, the telescopic component is in the normal retracted state, and the exhaust component forms a sealed fit with the side hole, preventing external dust and moisture from entering the base. When heat exchange is required, the telescopic component drives the exhaust component to protrude from the outer wall of the base, allowing the base to communicate with the outside air. At the same time, the air intake heat exchange component introduces air from the outside and delivers it to the inner edge of the base, forming an airflow circulation. This achieves a balance between chassis sealing protection and internal heat exchange function, improves the chassis's adaptability to different environments, and ensures the normal operating temperature of the equipment inside the base in a sealed state.

[0012] Preferably, the exhaust assembly includes a sleeve that slides into the side hole, one end of the sleeve located outside the base is closed, the closed end of the sleeve has annularly distributed ventilation holes, and a conical protrusion connected to the telescopic assembly is fixed on the inner side of the sleeve.

[0013] By adopting the above technical solution, the telescopic component drives the sleeve to move along the side hole through the conical protrusion. The closed end design prevents foreign objects from directly intruding into the sleeve. The annularly distributed ventilation holes increase the airflow exchange area, allowing air to enter and exit the base evenly. This achieves preliminary protection during the exhaust process, reduces the risk of large foreign objects directly entering the base, and ensures smooth airflow, thereby improving heat exchange efficiency.

[0014] Preferably, the outer circumference of the closed end of the sleeve is provided with an annular groove, and a sealing ring that abuts against the inner wall of the side hole is embedded in the annular groove.

[0015] By adopting the above technical solution, the elastic deformation of the sealing ring fills the gap between the sleeve and the side hole, enhances the fit between the two, blocks the gap channel, further improves the sealing performance of the exhaust assembly and the side hole, reduces the possibility of dust and moisture intruding into the base from the gap between the two, and strengthens the dustproof and waterproof effect of the chassis.

[0016] Preferably, the telescopic assembly includes a side frame installed inside the base, a drive motor fixed on the side frame, a screw connected to the output shaft of the drive motor, a threaded tube threaded onto the screw and connected to the conical protrusion, a guide block provided on the inner wall of the side hole, and a guide groove adapted to the guide block provided on the outer wall of the sleeve.

[0017] By adopting the above technical solution, the drive motor drives the screw to rotate, and the threaded transmission is converted into the linear motion of the threaded tube, which pushes the conical protrusion to move the sleeve. The cooperation between the guide block and the guide groove restricts the rotation of the sleeve, ensuring accurate movement direction. This achieves the smoothness and accuracy of the movement process of the exhaust assembly, ensures the reliability of the switching between sealing and heat exchange states, reduces wear during component movement, and extends service life.

[0018] Preferably, the air intake heat exchange assembly includes an air pump installed in the base, the air intake end of the air pump is connected to a filter mechanism extending to the outside of the base, the air outlet end of the air pump is connected to an air distribution pipe arranged on the inner side of the bottom end of the base, and air guide ports are evenly opened on the outer side of the air distribution pipe.

[0019] By adopting the above technical solution, the air pump provides the air intake power, and the external air enters the air distribution pipe after being processed by the filtration mechanism. The airflow is released into the base through the evenly distributed air guide ports, so that the airflow is evenly diffused inside the base, realizing uniform heat exchange of the air inside the base, improving the comprehensiveness and efficiency of heat exchange. At the same time, the filtration mechanism performs preliminary purification of the intake air, reducing impurities entering the base.

[0020] Preferably, the filtration mechanism includes an air inlet pipe connected to the air inlet end of the air pump, and a detachable filter element, a solenoid valve and a protective net are sequentially arranged on the air inlet pipe.

[0021] By adopting the above technical solution, when external air enters the intake pipe, it is first blocked by a protective net to block large particles of impurities, then the solenoid valve controls the opening and closing of the channel, and finally the filter element filters out fine dust and particulate matter. This achieves graded filtration of intake air impurities, improves the cleanliness of the intake air, and the detachable filter element facilitates later cleaning and replacement. The solenoid valve makes the opening and closing control of the intake channel more flexible and adaptable to different working conditions.

[0022] Preferably, the base is equipped with a temperature and humidity sensing component and a control module. The temperature and humidity sensing component controls the start and stop of the exhaust component, the telescopic component and the intake heat exchange component through the control module.

[0023] By adopting the above technical solution, the temperature and humidity sensing component detects the temperature and humidity data inside the base in real time and transmits the data to the control module. The control module determines whether the heat exchange function needs to be activated based on the preset threshold, and then controls the start and stop of each related component. This achieves automatic adaptation between the chassis's dustproof and waterproof functions and its heat exchange function. It can adjust its working status according to changes in the internal environment without manual intervention, thus improving the convenience and intelligence of the chassis.

[0024] Preferably, the top of the base is provided with an annular boss, and a sealing ring that abuts against the inner wall of the cover plate is embedded on the outside of the boss.

[0025] By adopting the above technical solution, the boss provides an installation positioning reference for the cover plate, enabling the cover plate to be precisely aligned with the base. Under the clamping force of the cover plate, the sealing ring undergoes elastic deformation, filling the gap between the boss and the inner wall of the cover plate. This enhances the sealing reliability of the connection between the base and the cover plate, effectively preventing dust and moisture from entering the interior of the base from the top connection, and strengthening the overall sealing and protection effect of the chassis.

[0026] Preferably, the outer side of the base is provided with two sets of symmetrically arranged shaft mounting portions, each shaft mounting portion including a shaft hole opened on the side wall of the base, the outer side wall of the base is provided with a reinforcing ring located at the end of the shaft hole, and the inner side of the base is provided with an extended protruding ring connected to the shaft hole.

[0027] By adopting the above technical solutions, the shaft hole provides an installation channel for the shaft, the reinforcing ring increases the structural strength of the shaft hole end, the extended convex ring extends the support length of the shaft hole, disperses the force after the shaft is installed, improves the load-bearing capacity and structural stability of the shaft hole, reduces deformation and wear at the shaft hole during long-term use, ensures the firmness of the shaft installation, and thus improves the overall structural durability of the chassis.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] By dynamically coordinating the telescopic exhaust assembly and the intake heat exchange assembly, the sleeve and side hole are sealed together to achieve dust and water protection when not exchanging heat. When exchanging heat, the sleeve extends to form an airflow channel. Combined with automatic temperature and humidity control, it avoids heat accumulation caused by full enclosure, and the internal temperature can be controlled within a safe threshold. It also prevents dust intrusion caused by opening heat dissipation holes, solving the pain points of "failure of heat dissipation in full enclosure and failure of sealing when opening heat dissipation holes", and ensuring the long-term stable operation of core components such as drive motors and sensors. Attached Figure Description

[0030] Figure 1 This is a three-dimensional schematic diagram of the present application;

[0031] Figure 2 This is a perspective view of the cover plate in the open state in this application;

[0032] Figure 3 This is a three-dimensional schematic diagram of the assembly of the air intake heat exchange component in this application;

[0033] Figure 4 This is a three-dimensional schematic diagram of the air intake heat exchange component in this application;

[0034] Figure 5 This is a three-dimensional schematic diagram of the exhaust assembly in this application.

[0035] Figure label:

[0036] 1. Base;

[0037] 2. Shaft mounting part; 21. Shaft hole; 22. Reinforcing ring; 23. Extension convex ring;

[0038] 3. Exhaust assembly; 31. Sleeve; 32. Conical protrusion; 33. Vent hole; 34. Sealing ring;

[0039] 4. Inlet heat exchanger assembly; 41. Air pump; 42. Air distribution pipe; 43. Air inlet; 44. Filter element; 45. Solenoid valve; 46. Protective net;

[0040] 5. Cover plate; 6. Boss; 7. Sealing ring; 8. Side hole;

[0041] 9. Telescopic assembly; 91. Side frame; 92. Drive motor; 93. Screw; 94. Threaded pipe; 95. Guide groove; 96. Guide block. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1 - Figure 5 This application will be described in further detail.

[0043] This application discloses a novel dustproof and waterproof chassis structure.

[0044] Reference Figure 1 and Figure 2 A novel dustproof and waterproof chassis structure includes a base 1 and a cover plate 5 installed on the base 1. The base 1 is made of high-strength aluminum alloy die casting and has an overall "groove" structure. The groove depth is designed according to the internal equipment dimensions of the bomb disposal robot, taking into account both lightweight and impact resistance. The cover plate 5 is made of the same aluminum alloy as the base 1 and is fastened to the base 1 by stainless steel bolts. The bolt holes are filled with nitrile rubber sealing gaskets. An air intake heat exchange component 4 is installed inside the base 1. The air intake end of the air intake heat exchange component 4 extends to the outside of the base 1, and the exhaust end is located at the inner edge of the base 1. A side hole 8 is opened on one side of the base 1, and an exhaust component 3 is slidably inserted into the side hole 8. One end of the exhaust component 3 is connected to a telescopic component 9 located inside the base 1. When the telescopic component 9 is in the extended state, the exhaust component 3 protrudes from the outer wall of the base 1 to connect the inside of the base 1 with the outside air. When the telescopic component 9 is in the retracted state, it forms a sealing fit with the side hole 8.

[0045] The base 1 and the cover plate 5 form a closed space. In the non-heat exchange state, the telescopic component 9 remains retracted, and the exhaust component 3 is sealed and fitted with the side hole 8 to prevent external dust and moisture from entering. When the equipment inside the base 1 generates heat, the telescopic component 9 drives the exhaust component 3 to protrude out of the outer wall of the base 1, opening the airflow channel. At the same time, the air intake heat exchange component 4 introduces clean air from the outside and delivers it to the inner edge of the base 1, forming an internal and external airflow circulation, realizing the dynamic switching between sealing protection and heat exchange functions.

[0046] Reference Figure 1 and Figure 2 The base 1 has an annular boss 6 at the top, and an annular sealing groove is provided on the outside of the boss 6. A sealing ring 7 is embedded in the annular sealing groove and abuts against the inner wall of the cover plate 5. The sealing ring 7 is made of fluororubber and has an "O" shaped cross section. When the cover plate 5 is closed, the boss 6 provides precise positioning for it and avoids the cover plate 5 from shifting and causing the seal to fail.

[0047] Reference Figure 1 , Figure 2 The base 1 has two symmetrically arranged shaft mounting parts 2 on its outer side, located at both ends of the base 1 along its length, for mounting the wheel axles of the bomb disposal robot. Each shaft mounting part 2 includes a shaft hole 21 formed on the side wall of the base 1. The inner diameter of the shaft hole 21 is designed according to the diameter of the wheel axle, typically 0.1–0.2 mm larger than the wheel axle diameter to ensure smooth rotation of the wheel axle. A reinforcing ring 22, made of 45# steel, is welded to the outer wall of the base 1 and fixed to the base 1 by welding. The fillet welds enhance the structural strength around the shaft hole 21. An extended protruding ring 23 connected to the shaft hole 21 is integrally formed on the inner side of the base 1. When the wheel axle is installed, the connection between the wheel axle and the shaft hole 21 adopts a dynamic sealing method. The ring passes through the shaft hole 21 and the extended protruding ring 23 from the outside of the base 1. The extended protruding ring 23 extends the support length of the wheel axle, making the wheel axle more evenly stressed and reducing the local stress concentration at the shaft hole 21. At the same time, the reinforcing ring 22 can prevent the shaft hole 21 from deforming under the load of the wheel axle, ensuring the structural stability of the bomb disposal robot during its movement.

[0048] Reference Figure 2 , Figure 3 and Figure 4The air intake heat exchange assembly 4 includes an air pump 41 bolted to the base 1. The air pump 41 is a miniature centrifugal air pump with a rated air volume of 50-80 L / min and an operating voltage compatible with the power supply system of the bomb disposal robot. The air intake end of the air pump 41 is connected to a filter mechanism extending to the outside of the base 1 via an air pipe, and the air outlet end is connected to an air distribution pipe 42 located on the inner side of the bottom end of the base 1 via an air pipe. The air distribution pipe 42 is made of PU flexible tubing and is fixed to the inner wall of the bottom end of the base 1 with pipe clamps. Air guide ports 43 are evenly distributed on the outer side of the air distribution pipe 42. The filter mechanism includes an air intake pipe connected to the air intake end of the air pump 41, which is made of ABS plastic. Removable filters are sequentially installed on the air intake pipe. The system includes a filter element 44, a solenoid valve 45, and a protective mesh 46. The protective mesh 46 is made of stainless steel and is fixed to the end of the air intake pipe via a threaded connection. It can block large particles such as leaves and gravel. The solenoid valve 45 is a normally closed solenoid valve with the same operating voltage as the air pump 41. It is controlled by a control module and remains closed when not in heat exchange mode to prevent external dust from entering the base 1 through the air intake pipe. The filter element 44 adopts a combination structure of activated carbon filter and HEPA filter. The outer diameter of the filter element is adapted to the inner diameter of the air intake pipe. It is detachably connected to the air intake pipe via a threaded cap for easy replacement. In addition, the filter element 44 can be installed on the outside of the chassis and can be replaced without disassembling the chassis body.

[0049] Reference Figure 5 The exhaust assembly 3 includes a sleeve 31 that slides into the side hole 8. The sleeve 31 is made of 304 stainless steel. One end of the sleeve 31 located outside the base 1 is closed. The closed end is formed by laser welding to prevent water leakage due to weld gaps. The closed end of the sleeve 31 has 8 to 12 annularly distributed ventilation holes 33, which are evenly distributed along the circumference of the sleeve 31 to form an annular airflow channel. A conical protrusion 32 connected to the telescopic assembly 9 is welded to the inner side of the sleeve 31. The top end is connected to the telescopic assembly 9 by threads. For ease of assembly and disassembly, the outer circumference of the closed end of the sleeve 31 is provided with an annular groove, and a sealing ring 34 is embedded in the annular groove, which abuts against the inner wall of the side hole 8. The sealing ring 34 is made of silicone rubber. When the sleeve 31 does not protrude from the base 1, the sealing ring 34 deforms under the pressure of the inner wall of the side hole 8, filling the gap between the sleeve 31 and the side hole 8, forming a side sealing barrier. When the sleeve 31 protrudes from the base 1, the sealing ring 34 moves with the sleeve 31 and still remains in contact with the inner wall of the side hole 8, avoiding gaps during the movement.

[0050] Reference Figure 5The telescopic assembly 9 includes a side frame 91 fixed to the inside of the base 1 by bolts. The side frame 91 is made of aluminum alloy profile. A drive motor 92 is fixed to the side frame 91 by bolts. The drive motor 92 is a micro stepper motor. The output shaft of the drive motor 92 is connected to a screw 93 through a coupling. A threaded tube 94 connected to the conical protrusion 32 is threaded on the screw 93. The inner wall of the threaded tube 94 is provided with an internal thread that matches the screw 93. The top end is fixedly connected to the conical protrusion 32 by bolts. A guide block 96 is integrally formed on the inner wall of the side hole 8. The cross-section of the guide block 96 is rectangular. A guide groove 95 that matches the guide block 96 is provided on the outer wall of the sleeve 31 and is adapted to the movement stroke of the sleeve 31.

[0051] When the heat exchange function needs to be activated, the drive motor 92 drives the screw 93 to rotate forward. Under the action of the threaded transmission, the threaded tube 94 moves away from the drive motor 92 along the screw 93, pushing the conical protrusion 32 to drive the sleeve 31 to move outward along the side hole 8. The cooperation between the guide block 96 and the guide groove 95 restricts the rotation of the sleeve 31, ensuring that the sleeve 31 only makes linear motion. When the sleeve 31 protrudes from the outer wall of the base 1, the drive motor 92 stops rotating. At this time, the vent 33 is fully exposed to the outside, forming an exhaust channel. After the heat exchange is completed, the drive motor 92 reverses, driving the sleeve 31 to reset. The sealing ring 34 re-fits tightly with the inner wall of the side hole 8, restoring the sealing state.

[0052] Reference Figure 2 The base 1 houses a temperature and humidity sensing component and a control module, both secured by bolts. The temperature and humidity sensing component is a digital sensor, model SHT30, with a measurement range of -40℃ to 125℃ and humidity of 0% to 100%RH, with accuracies of ±0.3℃ and ±2%RH respectively. The control module uses an STM32 series microcontroller, integrating a motor drive circuit and a relay module, which are electrically connected to the drive motor 92, the air pump 41, and the solenoid valve 45, respectively. The control module has preset temperature and humidity thresholds (typically a temperature threshold of 45℃). With a humidity threshold of 80%RH, when the temperature and humidity sensing component detects that the internal temperature of the base 1 exceeds 45℃ or the humidity exceeds 80%RH, the control module triggers the heat exchange program: first, it controls the drive motor 92 to start, causing the sleeve 31 to protrude from the base 1, then it opens the solenoid valve 45 and starts the air pump 41 to introduce clean external air; when the internal temperature drops below 40℃ and the humidity drops below 75%RH, the control module shuts off the air pump 41 and the solenoid valve 45, controls the drive motor 92 to reset the sleeve 31, and restores the sealing state.

[0053] The implementation principle of a novel dustproof and waterproof chassis structure in this application is as follows:

[0054] When the bomb disposal robot is operating outdoors, in non-heat exchange mode, the drive motor 92 of the telescopic component 9 is de-energized, the sleeve 31 remains reset under the self-locking action of the thread, the sealing ring 34 is in contact with the inner wall of the side hole 8, the solenoid valve 45 is closed, and a closed space is formed inside the base 1. The top sealing ring 7 and the side sealing ring 34 together prevent external dust and moisture from entering, achieving dustproof and waterproof function; at the same time, the temperature and humidity sensing component detects the temperature and humidity inside the base 1 in real time and transmits the data to the control module.

[0055] When the internal equipment of the base 1 generates heat and the temperature exceeds the preset threshold, the control module initiates the heat exchange program: the drive motor 92 rotates forward, and through the threaded transmission of the screw 93 and the threaded tube 94, it pushes the sleeve 31 to move outward along the side hole 8 until the ventilation hole 33 is exposed; then the solenoid valve 45 opens, the air pump 41 starts, and the external air passes through the protective net 46 (blocking large foreign objects), the solenoid valve 45, and the filter 44 in sequence, and enters the air distribution pipe 42; the air is evenly released into the interior of the base 1 through the air guide port 43 on the air distribution pipe 42, mixes with the hot air after the equipment has dissipated heat, and the hot air is discharged from the base 1 through the ventilation hole 33 of the sleeve 31, forming an airflow circulation to achieve internal cooling; the temperature and humidity sensing component continuously monitors the internal environment, and when the temperature drops below the threshold, the control module shuts off the air pump 41 and the solenoid valve 45, the drive motor 92 reverses, drives the sleeve 31 to reset, and the sealing ring 34 re-fits the side hole 8, restoring the sealing state and ensuring that the bomb disposal robot still has reliable dustproof and waterproof performance in subsequent operations.

[0056] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A novel dustproof and waterproof chassis structure, characterized in that, include: The base (1) and the cover plate (5) mounted on the base (1); An air intake heat exchange assembly (4) is disposed inside the base (1). The air intake end of the air intake heat exchange assembly (4) extends to the outside of the base (1), and the exhaust end of the air intake heat exchange assembly (4) is disposed at the inner edge of the base (1). Side hole (8), the side hole (8) is formed on one side of the base (1); An exhaust assembly (3) is slidably inserted into the side hole (8). One end of the exhaust assembly (3) is connected to a telescopic assembly (9) located inside the base (1). When the telescopic assembly (9) is extended, the exhaust assembly (3) protrudes from the outer wall of the base (1) to connect the interior of the base (1) with the outside air. When the telescopic assembly (9) is retracted, the exhaust assembly (3) forms a sealing fit with the side hole (8).

2. The novel dustproof and waterproof chassis structure according to claim 1, characterized in that: The exhaust assembly (3) includes a sleeve (31) that slides into the side hole (8). One end of the sleeve (31) located outside the base (1) is closed. The closed end of the sleeve (31) is provided with annularly distributed ventilation holes (33). A conical protrusion (32) connected to the telescopic assembly (9) is fixed on the inner side of the sleeve (31).

3. The novel dustproof and waterproof chassis structure according to claim 2, characterized in that: The outer circumference of the closed end of the sleeve (31) is provided with an annular groove, and a sealing ring (34) that abuts against the inner wall of the side hole (8) is embedded in the annular groove.

4. The novel dustproof and waterproof chassis structure according to claim 2, characterized in that: The telescopic assembly (9) includes a side frame (91) installed inside the base (1), a drive motor (92) is fixed on the side frame (91), the output shaft of the drive motor (92) is connected to a screw (93), a threaded tube (94) connected to the conical protrusion (32) is threaded on the screw (93), a guide block (96) is provided on the inner wall of the side hole (8), and a guide groove (95) adapted to the guide block (96) is opened on the outer wall of the sleeve (31).

5. The novel dustproof and waterproof chassis structure according to claim 1, characterized in that: The air intake heat exchange assembly (4) includes an air pump (41) installed in the base (1). The air intake end of the air pump (41) is connected to a filter mechanism extending to the outside of the base (1). The air outlet end of the air pump (41) is connected to an air distribution pipe (42) arranged on the inner side of the bottom end of the base (1). Air guide ports (43) are evenly opened on the outer side of the air distribution pipe (42).

6. The novel dustproof and waterproof chassis structure according to claim 5, characterized in that: The filtration mechanism includes an air inlet pipe connected to the air inlet end of the air pump (41), and a detachable filter element (44), a solenoid valve (45) and a protective net (46) are sequentially arranged on the air inlet pipe.

7. The novel dustproof and waterproof chassis structure according to claim 1, characterized in that: The base (1) is equipped with a temperature and humidity sensing component and a control module. The temperature and humidity sensing component controls the start and stop of the exhaust component (3), the telescopic component (9) and the air intake heat exchange component (4) through the control module.

8. The novel dustproof and waterproof chassis structure according to claim 1, characterized in that: The base (1) has an annular boss (6) at its top, and a sealing ring (7) is embedded on the outside of the boss (6) to abut against the inner wall of the cover plate (5).

9. The novel dustproof and waterproof chassis structure according to claim 1, characterized in that: The base (1) has two sets of symmetrically arranged shaft mounting parts (2) on its outer side. Each shaft mounting part (2) includes a shaft hole (21) opened on the side wall of the base (1). The outer side wall of the base (1) is provided with a reinforcing ring (22) located at the end of the shaft hole (21). The inner side of the base (1) is provided with an extension protrusion ring (23) connected to the shaft hole (21).

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