Self-fixing type outdoor protection box easy to disassemble and assemble

Abstract

The self-fixing type outdoor protection box easy to disassemble and assemble comprises a protection box body, a ceiling is fixedly installed at the top of the protection box body, and heat dissipation openings are formed in the left side and the right side of the protection box body; two sets of oppositely-arranged fixing supports are fixed to the back of the protection box body, and a mounting mechanism capable of moving in the length direction of the two-way threaded rod and the guide rod is arranged between the two-way threaded rod and the guide rod in a matched mode. And automatic air inlet mechanisms are mounted at the top and the bottom of the protection box body and are used for being matched with the heat dissipation openings to achieve internal heat dissipation. According to the self-fixing type outdoor protection box easy to disassemble and assemble, two sets of fixing supports on the back of the protection box body are matched with a linkage locking assembly between a bidirectional threaded rod and a guide rod and a linkage locking assembly between an installation mechanism and a locking hole, thrust can be generated through air cushion expansion when the installation mechanism is clamped, the thrust is transmitted to a fixing guide cylinder through an air conveying pipe, and an embedded rod is pushed to be embedded into an installation column supporting rod hole; triple anti-loosening guarantees are formed, and the risk of loosening and falling off in the high-altitude environment is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of outdoor protective boxes, specifically to an easy-to-assemble and self-fixing outdoor protective box. Background Technology

[0002] Outdoor protective boxes are widely used to protect outdoor devices such as electrical equipment and communication devices. They need to withstand the complex environmental effects of rain, dust, temperature fluctuations, corrosive media, and external impacts. They are widely used to protect the core components of various instruments, electrical components, and communication modules from the influence of dust, rain, and external impacts in the external environment, ensuring the stable operation of the equipment. With the continuous expansion of outdoor application scenarios and the gradual increase in equipment operation requirements, outdoor protective boxes are becoming increasingly important.

[0003] During the protection process, external interference can easily degrade the protective effect. To address this issue, a protective buffer frame for outdoor substations can be described in existing technology (Chinese patent application number CN202211520154.4, application date 2022-11-30). This device features an optimized design for outdoor substations in highway areas. The outer frame provides overall protection for the substation, with guardrails positioned near the highway to create a key protection area. Multiple guardrails are installed, with elastic buffers on adjacent guardrails arranged in a staggered pattern to enhance the protective effect. Side guardrails are also provided along the side edges of the guardrails to reduce the impact of oblique vehicle collisions. The side guardrails reduce impact force through elastic inner support tubes, complementing the guardrails. Alternatively, existing technology (Chinese patent application number CN202110764623.6, application date 2022-11-30) can also be referenced. A transformer box with a protective structure is disclosed in Chinese Patent No. 021-07-07. This device is provided with a connecting cylinder, a first connecting rod, a support plate, a first sliding groove, and a first slider. Through the mutual sliding between the first sliding groove and the first slider, the support plate connected to one side is damped during the sliding process. When the device is subjected to pressure, it is damped and protected, which increases the protective effect of the device during use. The device provides better buffering and makes the protective effect stronger. Finally, refer to the prior art (Chinese Patent No. CN201920547345.7, application date 2019-04-19) which discloses a protective box for outdoor intelligent management equipment. This device provides stable waterproof performance by setting a U-shaped sealing strip on the waterproof edge of the box, reducing the accident rate of damage to intelligent management equipment caused by water entering the box.

[0004] Although the above-mentioned device can provide some protection during use, it still has certain shortcomings in operation. For example, after the protective box and columnar rod are installed at high altitude, they are easily affected by external interference, which may lead to loosening and eventual detachment.

[0005] Therefore, we propose an easy-to-disassemble, self-fixing outdoor protective box to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide an easy-to-install self-fixing outdoor protective box to solve the problem mentioned in the background art that the protective boxes and columnar members currently on the market are easily affected by external interference after being installed at high altitudes, which leads to loosening and eventual detachment.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an easily detachable and self-fixing outdoor protective box, comprising a protective box body, a canopy fixedly installed on the top of the protective box body, and heat dissipation vents on the left and right sides of the protective box body; two sets of opposing fixed brackets fixed to the back of the protective box body, one set of fixed brackets having a bidirectional threaded rod rotatably installed inside, and the other set of fixed brackets having a guide rod installed inside; an installation mechanism movable along its length is provided between the bidirectional threaded rod and the guide rod, the inner side of the installation mechanism being used to fit against the outer side of the mounting column for clamping and fixing; a locking hole is fixed above the back of the protective box body near the installation mechanism, and the top support rod of the mounting column can be embedded in the locking hole to achieve suspension and positioning of the protective box body; a linkage locking assembly is provided between the installation mechanism and the locking hole, used to simultaneously lock the top support rod of the mounting column when the installation mechanism clamps the mounting column; automatic air intake mechanisms are installed at the top and bottom of the protective box body to cooperate with the heat dissipation vents for internal heat dissipation.

[0008] Preferably, a cooling fan is installed at the top of the interior of the protective enclosure, and a temperature control switch is installed on the inner wall. The temperature control switch is used to control the opening and closing of the heater inside the protective enclosure, and an installation skirt is installed on the rear bottom side of the protective enclosure.

[0009] Preferably, the bottom of the bidirectional threaded rod extends out of the bottom of the fixed bracket, and the mounting mechanism includes a fitting block that is threadedly connected to the outer side of the bidirectional threaded rod. The outer side of the fitting block is locked with a mating block by a locking bolt. Anti-slip pads are adhered to the inner sides of both the mating block and the fitting block, and the outer side of the anti-slip pads is attached to the outer side of the mounting column.

[0010] Preferably, the linkage locking assembly includes an air cushion disposed at the contact end of the bonding block and the mating block. The air cushion is adhered to the inside of the bonding block, and one end of the air cushion is connected to an air supply pipe. The top end of the air supply pipe extends into the locking hole. A fixing guide cylinder is fixed in the locking hole. The outer end of the fixing guide cylinder is connected to the air supply pipe. An embedding rod is slidably disposed in the fixing guide cylinder. The outer end of the embedding rod can be embedded into the hole of the mounting column support rod to achieve locking.

[0011] Preferably, one end of the embedded rod extending into the fixed guide cylinder is connected to the inner wall of the fixed guide cylinder via a return spring, and a rubber ring is nested at the outer end of the embedded rod, with the outer side of the rubber ring fitting against the inner wall of the fixed guide cylinder; the air cushion is made of elastic rubber material, and the elasticity of the air cushion is greater than the elasticity of the return spring.

[0012] Preferably, the automatic air intake mechanism includes an adjusting threaded block threadedly connected to the side wall of the protective housing. The end of the adjusting threaded block abuts against the side wall of the polyvinyl chloride rod. The end of the polyvinyl chloride rod away from the adjusting threaded block is in contact with a cam block. The other end of the cam block contacts the outer end of the closing strip. A reset member is provided on the side of the closing strip away from the cam block.

[0013] Preferably, the reset component is a connecting spring, one end of which is fixed to the side wall of the automatic air intake mechanism, and the bottom of the automatic air intake mechanism has several sets of through holes.

[0014] Preferably, the outer side of the closing strip is slidably disposed inside the automatic air intake mechanism. The surface of the automatic air intake mechanism is provided with several sets of vent holes, and the vent holes and through holes are arranged in a one-to-one correspondence. The closing strip can achieve the opening and closing of the vent holes and through holes by sliding.

[0015] Preferably, the center of one side of the cam block is fixed to the outside of the rotating threaded rod, the bottom of the rotating threaded rod is rotatably disposed inside the automatic air intake mechanism, the outside of the rotating threaded rod is threadedly connected to the inside of the closing block, and the closing block is located inside the heat dissipation port.

[0016] Preferably, a protrusion is provided on the outer side of the closing block, and the outer side of the protrusion is slidably disposed on the inner side of the heat dissipation vent. The closing block forms a sliding structure with the back of the heat dissipation vent by rotating the threaded rod, so as to adjust the opening of the heat dissipation vent.

[0017] Compared with the prior art, the beneficial effects of this invention are as follows: This easily detachable self-fixing outdoor protective box has two sets of fixing brackets on the back of the protective box, which, together with bidirectional threaded rods and guide rods, can drive the installation mechanism to precisely fit the installation column. Initial clamping and fixing are achieved through the anti-slip pads on the inner sides of the fitting block and the mating block. Simultaneously, the top support rod of the installation column is embedded in the locking hole for suspension positioning, and this dual structure ensures installation stability. The linkage locking component between the installation mechanism and the locking hole can generate thrust through air cushion expansion when the installation mechanism clamps, which is transmitted through the air pipe to the fixing guide cylinder, pushing the embedding rod into the support rod hole of the installation column, forming a triple anti-loosening guarantee and reducing the risk of loosening and falling off in high-altitude environments. Furthermore, the automatic air intake mechanism at the top and bottom of the protective box, together with the heat dissipation vents, cooling fans, and temperature control switches, achieves efficient heat dissipation and temperature regulation, balancing protective stability and adaptability to the equipment's operating environment. The overall structure, through components such as bidirectional threaded rods and locking bolts, allows for quick assembly and disassembly, significantly reducing the difficulty of high-altitude operations and maintenance costs, as detailed below: 1. The mating block and the connecting block are detachably connected by locking bolts. With the adjustment function of the bidirectional threaded rod, it can be adapted to mounting posts of different diameters, expanding the application range. The anti-slip pads adhering to the inner side are made of high-friction coefficient elastic material, which can increase the contact friction with the mounting post and reduce the risk of displacement caused by vibration. In the linkage locking assembly, the air cushion expansion thrust is greater than the return spring tension, ensuring that the embedding rod is stably embedded into the mounting post support hole. The rubber ring at the outer end of the embedding rod enhances the sealing and locking effect, preventing rainwater and dust from entering and causing the mechanism to jam. At the same time, the entire installation process does not require complicated tools. Clamping and locking can be completed simply by rotating the bidirectional threaded rod. 2. The automatic air intake mechanism can flexibly adjust the conduction state of the vent and through holes by adjusting the screw block, PVC rod and cam block. Together with the closing block inside the heat dissipation port, it can achieve precise control of the heat dissipation air volume. The heat dissipation fan inside the protective box is linked with the temperature control switch, which can not only quickly dissipate internal heat, but also start the heater in low temperature environment to avoid the impact of temperature fluctuation on the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from a bottom view; Figure 3 This is a schematic diagram of the rear view structure of the present invention; Figure 4 This is a schematic diagram of the main structure of the fixing bracket of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the front cross-sectional structure of the fixed guide tube of the present invention; Figure 7This is a side view of the closed block structure of the present invention; Figure 8 This is a schematic diagram of the main structure of the automatic air intake mechanism of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Protective enclosure; 101. Cooling fan; 102. Temperature control switch; 103. Mounting skirt; 2. Roof; 3. Heat dissipation vent; 4. Mounting column; 5. Fixing bracket; 6. Two-way threaded rod; 7. Fitting block; 701. Anti-slip pad; 8. Connecting block; 9. Locking bolt; 10. Air cushion; 11. Air supply pipe; 12. Locking hole; 13. Fixing guide tube; 14. Embedded rod; 1401. Return spring; 15. Automatic air intake mechanism; 16. Adjusting threaded block; 17. PVC rod; 18. Cam block; 19. Closing bar; 20. Connecting spring; 21. Rotating threaded rod; 22. Closing block. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-9 The present invention provides the following technical solution: an easy-to-disassemble self-fixing outdoor protective box.

[0022] Example 1: To address the issue that protective boxes and columnar members currently on the market are easily affected by external interference after high-altitude installation, leading to loosening and eventual detachment, please refer to the attached... Figure 1 - Appendix Figure 6The system includes a protective housing 1, with a canopy 2 fixedly installed on the top of the protective housing 1. Ventilation vents 3 are provided on the left and right sides of the protective housing 1. Two sets of opposing fixed brackets 5 are fixed to the back of the protective housing 1. One set of fixed brackets 5 has a bidirectional threaded rod 6 rotatably mounted inside it, and the other set of fixed brackets 5 has a guide rod inside it. A mounting mechanism that can move along the length of the bidirectional threaded rod 6 is fitted between the bidirectional threaded rod 6 and the guide rod. The inner side of the mounting mechanism is used to fit against the outer side of the mounting column 4 for clamping and fixing. A locking hole 12 is fixed above the back of the protective housing 1 near the mounting mechanism. The top support rod of the mounting column 4 can be embedded in the locking hole 12 to achieve suspension and positioning of the protective housing 1. A linkage locking assembly is provided between the mounting mechanism and the locking hole 12 to simultaneously lock the top support rod of the mounting column 4 when the mounting mechanism clamps the mounting column 4. The bottom of the bidirectional threaded rod 6 extends out from the bottom of the fixed bracket 5. The mounting mechanism includes a fitting block 7 threadedly connected to the outer side of the bidirectional threaded rod 6. The outer side of the fitting block 7 is secured by a lock. The bolt 9 is locked to the mating block 8. Anti-slip pads 701 are adhered to the inner sides of both the mating block 8 and the fitting block 7. The outer sides of the anti-slip pads 701 are attached to the outer side of the mounting post 4. The linkage locking assembly includes an air cushion 10 located at the contact end between the fitting block 7 and the mating block 8. The air cushion 10 is adhered to the inside of the fitting block 7, and one end of the air cushion 10 is connected to an air supply pipe 11. The top end of the air supply pipe 11 extends into the locking hole 12. A fixing guide cylinder 13 is fixed inside the locking hole 12, and the outer end of the fixing guide cylinder 13... The fixed guide tube 13 is connected to the gas supply pipe 11 and is slidably provided with an embedded rod 14. The outer end of the embedded rod 14 can be embedded into the hole of the mounting column 4 to achieve locking. One end of the embedded rod 14 that extends into the fixed guide tube 13 is connected to the inner wall of the fixed guide tube 13 through a return spring 1401. A rubber ring is nested at the outer end of the embedded rod 14, and the outer side of the rubber ring is attached to the inner wall of the fixed guide tube 13. The air cushion 10 is made of elastic rubber, and the elastic force of the air cushion 10 is greater than the elastic force of the return spring 1401.

[0023] First, align the locking hole 12 on the back of the protective box 1 with the top support rod of the mounting column 4, so that the support rod is embedded in the locking hole 12, completing the initial suspension positioning of the protective box 1, avoiding box displacement during high-altitude installation, and providing a stable reference for subsequent clamping operations; rotate the bidirectional threaded rod 6 at the bottom of the extended fixing bracket 5. Since the bonding block 7 is threadedly connected to the bidirectional threaded rod 6, and the guide rod in another set of fixing brackets 5 plays a guiding and limiting role for the bonding block 7, the rotation of the bidirectional threaded rod 6 will be converted into a linear movement of the bonding block 7 along the length of the guide rod, driving the mating block 8 to move closer to the mounting column 4 simultaneously; under the drive of the bidirectional threaded rod 6, the anti-slip pad 701 adhering to the inner side of the bonding block 7 and the mating block 8 gradually adheres to the outer side of the mounting column 4. Continue to rotate the bidirectional threaded rod 6 until the anti-slip pad 701 is tightly adhered to the mounting column 4. Utilize the high coefficient of friction of the anti-slip pad 701 to increase the contact friction, forming an initial clamping fixation, reducing the box's weight. Displacement caused by vibration; during the clamping of the mounting post 4 by the mating block 7 and the docking block 8, the squeezing action of the two will cause the elastic rubber air cushion 10 inside the mating block 7 to compress and expand; since the elastic force of the air cushion 10 is greater than the elastic force of the return spring 1401, the air pressure generated by the expansion is transmitted through the air supply pipe 11 to the fixed guide tube 13 in the locking hole 12, pushing the embedded rod 14 to slide outward against the tension of the return spring 1401, and finally embedding it into the preset hole of the top support rod of the mounting post 4, realizing the rigid locking of the support rod of the mounting post 4 and the locking hole 12, forming a double anti-loosening guarantee; when disassembling, rotate the bidirectional threaded rod 6 in the opposite direction, the mating block 7 and the docking block 8 separate from each other, the squeezing force of the air cushion 10 disappears, the return spring 1401 drives the embedded rod 14 to retract into the fixed guide tube 13, releasing the locking of the support rod of the mounting post 4, and then the locking hole 12 of the protective box 1 can be removed from the support rod of the mounting post 4 to complete the quick disassembly.

[0024] Example 2: To facilitate subsequent heat dissipation, please refer to the attached document. Figure 7 - Appendix Figure 9The protective housing 1 is equipped with automatic air intake mechanisms 15 at both the top and bottom to cooperate with the heat dissipation vents 3 for internal heat dissipation. A cooling fan 101 is installed at the top of the interior of the protective housing 1, and a temperature control switch 102 is installed on the inner wall. The temperature control switch 102 controls the opening and closing of the internal heater of the protective housing 1. A mounting skirt 103 is installed on the rear bottom side of the protective housing 1. The automatic air intake mechanism 15 includes an adjusting threaded block 16 threaded to the side wall of the protective housing 1. The end of the adjusting threaded block 16 abuts against the side wall of a polyvinyl chloride rod 17. The end of the polyvinyl chloride rod 17 away from the adjusting threaded block 16 is in contact with a cam block 18. The other end of the cam block 18 contacts the outer end of a closing strip 19. A reset element is provided on the side of the closing strip 19 away from the cam block 18. The reset element is a connecting spring 20, one end of which is fixed to the automatic air intake mechanism 15. The side wall of the automatic air intake mechanism 15 has several sets of through holes at its bottom. The outer side of the closing strip 19 is slidably disposed inside the automatic air intake mechanism 15. Several sets of ventilation holes are disposed on the surface of the automatic air intake mechanism 15. The ventilation holes and through holes are arranged one-to-one. The closing strip 19 can achieve the connection and closure of the ventilation holes and through holes by sliding. The center position of one side of the cam block 18 is fixed to the outer side of the rotating threaded rod 21. The bottom of the rotating threaded rod 21 is rotatably disposed inside the automatic air intake mechanism 15. The outer side of the rotating threaded rod 21 is threadedly connected to the inside of the closing block 22. The closing block 22 is located inside the heat dissipation port 3. The outer side of the closing block 22 is provided with a protrusion. The outer side of the protrusion is slidably disposed inside the heat dissipation port 3. The closing block 22 forms a sliding structure with the back of the heat dissipation port 3 by rotating the rotating threaded rod 21 to adjust the opening of the heat dissipation port 3.

[0025] The adjusting threaded block 16 on the rotating automatic air intake mechanism 15 moves along the threaded hole on the side wall of the protective housing 1, pushing the PVC rod 17 towards the cam block 18, thereby adjusting the initial ventilation volume. When the PVC rod 17 expands and deforms due to heat, the cam block 18 rotates around the center of the rotating threaded rod 21 after being compressed. Its eccentric structure pushes the closing strip 19 to overcome the elastic force of the connecting spring 20 and slide along the inside of the automatic air intake mechanism 15, so that the vent hole on the surface of the automatic air intake mechanism 15 is aligned and connected with the through hole at the bottom, forming an air intake channel. When the adjusting threaded block 16 is rotated in the opposite direction, the connecting spring 20 resets and pulls the closing strip 19 back, the vent hole and the through hole are misaligned and closed, and the air intake channel is closed. When the cam block 18 rotates, it will drive the coaxially fixed rotating threaded rod 21 to rotate synchronously. Since the rotating threaded rod 21 is threadedly connected to the closing block 22, and the closing block 22 slides with the inner side of the heat dissipation port 3 through the outer protrusion, the rotation of the rotating threaded rod 21 will drive the closing block. 22 slides up and down along the back of the heat dissipation vent 3 to adjust the opening area of ​​the heat dissipation vent 3, thereby achieving precise control of the heat dissipation airflow; the temperature control switch 102 on the inner wall of the protective box 1 monitors the internal temperature in real time. When the temperature is higher than the preset threshold, the temperature control switch 102 starts the internal cooling fan 101. The cooling fan 101 accelerates the airflow inside the box. External cold air enters the box through the conduction channel of the automatic air intake mechanism 15, and the hot air carrying heat is discharged through the heat dissipation vent 3, forming a heat dissipation cycle; when the outdoor temperature is too low, the temperature control switch 102 starts the heater inside the box. At the same time, the vent and through holes of the automatic air intake mechanism 15 remain closed to reduce heat loss inside the box and maintain the appropriate temperature required for equipment operation; the skirt 103 can prevent rainwater and dust from entering the bottom of the box from the ground. The roof 2 blocks rainwater and direct sunlight. Combined with the sealing effect when the automatic air intake mechanism 15 is closed, the waterproof and dustproof performance of the protective box 1 is improved while ensuring heat dissipation efficiency, making it suitable for complex outdoor environments.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-fixing outdoor protective box that is easy to assemble and disassemble, comprising a protective box body (1), wherein a canopy (2) is fixedly installed on the top of the protective box body (1), and heat dissipation vents (3) are provided on the left and right sides of the protective box body (1); characterized in that: Two sets of opposing fixed brackets (5) are fixed on the back of the protective box (1). A bidirectional threaded rod (6) is rotatably installed in one set of the fixed brackets (5), and a guide rod is installed in the other set of the fixed brackets (5). An installation mechanism that can move along its length is provided between the bidirectional threaded rod (6) and the guide rod. The inner side of the installation mechanism is used to fit against the outer side of the mounting column (4) to achieve clamping and fixing. A locking hole (12) is fixed on the back of the protective box (1) near the upper part of the installation mechanism. The top support rod of the mounting column (4) can be embedded in the locking hole (12) to achieve the suspension and positioning of the protective box (1). A linkage locking component is provided between the installation mechanism and the locking hole (12) to lock the top support rod of the mounting column (4) simultaneously when the installation mechanism clamps the mounting column (4). An automatic air intake mechanism (15) is installed on the top and bottom of the protective box (1) to cooperate with the heat dissipation port (3) to achieve internal heat dissipation.

2. The easily detachable self-fixing outdoor protective box according to claim 1, characterized in that: The protective box (1) is equipped with a cooling fan (101) at the top inside and a temperature control switch (102) on the inner wall. The temperature control switch (102) is used to control the opening and closing of the heater inside the protective box (1). The protective box (1) is equipped with a skirt (103) on the bottom rear side.

3. The easily detachable self-fixing outdoor protective box according to claim 1, characterized in that: The bottom of the bidirectional threaded rod (6) extends out of the bottom of the fixed bracket (5). The mounting mechanism includes a fitting block (7) that is threaded to the outside of the bidirectional threaded rod (6). The outside of the fitting block (7) is locked with a mating block (8) by a locking bolt (9). Anti-slip pads (701) are adhered to the inside of both the mating block (8) and the fitting block (7). The outside of the anti-slip pads (701) is attached to the outside of the mounting column (4).

4. The easily detachable self-fixing outdoor protective box according to claim 3, characterized in that: The linkage locking assembly includes an air cushion (10) disposed at the contact end of the fitting block (7) and the docking block (8). The air cushion (10) is adhered to the inside of the fitting block (7). One end of the air cushion (10) is connected to an air supply pipe (11). The top end of the air supply pipe (11) extends into the locking hole (12). A fixed guide cylinder (13) is fixed in the locking hole (12). The outer end of the fixed guide cylinder (13) is connected to the air supply pipe (11). An embedded rod (14) is slidably disposed in the fixed guide cylinder (13). The outer end of the embedded rod (14) can be embedded into the hole of the mounting column (4) support rod to achieve locking.

5. The easily detachable self-fixing outdoor protective box according to claim 4, characterized in that: The end of the embedded rod (14) that extends into the fixed guide cylinder (13) is connected to the inner wall of the fixed guide cylinder (13) through the return spring (1401). The outer end of the embedded rod (14) is nested with a rubber ring, and the outer side of the rubber ring is attached to the inner wall of the fixed guide cylinder (13). The air cushion (10) is made of elastic rubber, and the elastic force of the air cushion (10) is greater than the elastic force of the return spring (1401).

6. The easily detachable self-fixing outdoor protective box according to claim 1, characterized in that: The automatic air intake mechanism (15) includes an adjusting threaded block (16) threaded to the side wall of the protective housing (1). The end of the adjusting threaded block (16) abuts against the side wall of the polyvinyl chloride rod (17). One end of the polyvinyl chloride rod (17) away from the adjusting threaded block (16) is in contact with the cam block (18). The other end of the cam block (18) is in contact with the outer end of the closing strip (19). A reset member is provided on the side of the closing strip (19) away from the cam block (18).

7. The easily detachable self-fixing outdoor protective box according to claim 6, characterized in that: The reset component is a connecting spring (20), one end of which is fixed to the side wall of the automatic air intake mechanism (15), and the bottom of the automatic air intake mechanism (15) has several sets of through holes.

8. The easily detachable self-fixing outdoor protective box according to claim 6, characterized in that: The outer side of the closing strip (19) is slidably disposed inside the automatic air intake mechanism (15). The surface of the automatic air intake mechanism (15) is provided with several sets of ventilation holes, and the ventilation holes and through holes are arranged in a one-to-one correspondence. The closing strip (19) can achieve the connection and closure of the ventilation holes and through holes by sliding.

9. The easily detachable self-fixing outdoor protective box according to claim 6, characterized in that: The center of one side of the cam block (18) is fixed on the outside of the rotating threaded rod (21). The bottom of the rotating threaded rod (21) is rotatably set inside the automatic air intake mechanism (15). The outer side of the rotating threaded rod (21) is threadedly connected to the inside of the closing block (22). The closing block (22) is located inside the heat dissipation port (3).

10. The easily detachable self-fixing outdoor protective box according to claim 9, characterized in that: The outer side of the closing block (22) is provided with a protrusion, and the outer side of the protrusion is slidably disposed on the inner side of the heat dissipation port (3). The closing block (22) forms a sliding structure with the back of the heat dissipation port (3) by rotating the threaded rod (21) to adjust the opening of the heat dissipation port (3).

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