A quick-install cable distribution box for rail transit and its components

Abstract

The present invention relates to the technical field of cable distribution boxes, and discloses a quick-install cable distribution box for rail transit and its components. The component includes a sleeve, and a plurality of arc-shaped plates are equidistantly sleeved around both sides of the sleeve. Magnets are fixedly installed at both ends of the arc-shaped plates, and the magnetic pole directions of adjacent magnets are opposite. The plurality of arc-shaped plates are connected by the adsorption fixation between the magnets. When installing the plug-in head in the present invention, the space formed by the arc-shaped sleeve, arc-shaped plates, and shielding component can prevent external dust and impurities from falling on the sleeve after applying silicone grease. With the cooperation of the outward blowing air flow, dust protection can be provided for the sleeve. Through the cooperation of the rotating assembly, cylinder, rotating shaft, and pressing plate, the part where the shielding component contacts the arc-shaped plate is pressed, so that when operating in a high-wind area, the part where the shielding component fits with the arc-shaped plate will not be blown open by the wind, ensuring the dust-proof effect on the sleeve.

Description

Technical Field

[0001] The present invention belongs to the technical field of cable distribution boxes, and particularly relates to a quick-install cable distribution box for rail transit and its components. Background Art

[0002] A cable distribution box, also known as a cable branch box, is used for cable branching. The main functions of the cable branch box are to tap or transfer cables, mainly serving as a cable tapping function and a cable transfer function.

[0003] When the existing cable distribution box is in use, when connecting the plug-in head to the sleeve, it is necessary to apply silicone grease to the cleaned sleeve, and then connect the plug-in head to the sleeve. However, during the entire installation process, the sleeve is exposed and will be attached with dust and impurities in the external air, thus affecting the use after installation.

[0004] Therefore, it is very necessary to invent a quick-install cable distribution box for rail transit and its components to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present invention provides a quick-install cable distribution box for rail transit and its components to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A component of a quick-install cable distribution box for rail transit, including a sleeve, on both sides of the sleeve, a plurality of arc-shaped plates are equidistantly and circumferentially sleeved. Both ends of each arc-shaped plate are fixedly installed with magnets, and the magnetic pole directions of adjacent magnets are opposite. The plurality of arc-shaped plates are connected by the adsorption and fixation between the magnets. An arc-shaped sleeve is arranged outside the arc-shaped plate. A sliding groove is opened on the outside of the arc-shaped plate, and a slider is slidably installed in the sliding groove. The slider is fixedly connected with the arc-shaped sleeve. A push rod is fixedly installed on the side of the slider away from the sleeve. A spring is sleeved outside the push rod, and both ends of the spring are respectively fixedly connected with the inner wall of the sliding groove and the slider. A limiting component is arranged outside the push rod for limiting it. Accommodating openings are opened on both sides of the arc-shaped sleeve, and a shielding component is arranged between adjacent accommodating openings. Both ends of the shielding component are respectively fixedly connected with the inner walls of adjacent accommodating openings. The ends of the plurality of arc-shaped sleeves away from the arc-shaped plates are commonly threadedly connected with a closing cover. A scraping plate is fixedly installed in the middle of the inner wall of the arc-shaped sleeve. A cavity is arranged inside the scraping plate. A plurality of spray holes are arranged on the side of the scraping plate close to the sleeve. An injection component for injecting silicone grease into the cavity is arranged outside the arc-shaped sleeve. A blowing component for blowing air into the space formed by the unfolded arc-shaped sleeve and the shielding component is arranged inside the sleeve. A ring groove is arranged on the outside of the sleeve, and a pushing groove communicating with the ring groove is opened on the side of the sleeve close to the closing cover. A limiting block matching the ring groove and the pushing groove is fixedly installed on one of the arc-shaped plates.

[0007] Further, the injection component includes an extrusion airbag fixedly installed on the outer side of the arc-shaped sleeve. An injection port is provided on the outer side of the extrusion airbag. A plunger is threadedly connected to the injection port. The inside of the extrusion airbag is filled with silicone grease. One side of the extrusion airbag is communicated with the inside of the scraper through a conduit, and a one-way valve is provided inside the conduit.

[0008] Further, the limiting component includes a retaining piece arranged on the outer side of the arc-shaped plate. The retaining piece is arc-shaped. Limiting ports are symmetrically arranged on the outer side of the arc-shaped plate. A limiting plate matched with the limiting port is arranged on the inner side of the retaining piece. The limiting plate is slidably arranged in the limiting port, and the retaining piece abuts against the ejector rod.

[0009] Further, the air blowing component includes an annular cavity arranged inside the sleeve. A plurality of circular holes communicated with the annular cavity are equidistantly and circumferentially opened on one side of the sleeve close to the arc-shaped sleeve. The circular holes are blocked by the arc-shaped sleeve. A channel communicated with the annular cavity is opened on the outer side of the sleeve. The port of the channel has a thread, and a connecting pipe is threadedly connected to the port of the channel. One end of the connecting pipe is connected to an electric air pump through a hose. A filter screen is arranged at the air suction end of the electric air pump, and a carrier block is fixedly installed on the top of the electric air pump.

[0010] Further, side plates are symmetrically and fixedly installed on the outer side of the arc-shaped plate. A rotating shaft is rotatably installed on the inner side of the side plates. A cylinder is fixedly sleeved on the outer part of the rotating shaft. A pressing plate is fixedly installed on the outer side of the cylinder. One end of the rotating shaft passes through the side plate and is sleeved with a torsion spring. Two ends of the torsion spring are respectively fixedly connected to the side plate and the rotating shaft. A rotating component for driving the cylinder to rotate is arranged on the outer part of the cylinder.

[0011] Further, the rotating component includes a long groove opened on the side of the retaining piece close to the cylinder. The length of the long groove is two-thirds of the width of the retaining piece. A rubber gasket is sleeved on the outer part of the cylinder, and the retaining piece can abut against the rubber gasket.

[0012] Further, the shielding member is a dust filter cloth, and one side of the shielding member is attached to the sleeve and the arc-shaped plate.

[0013] A fast-installing wire distributing box for rail transit includes the components of the fast-installing wire distributing box for rail transit as described above and a wire distributing box. The components of the fast-installing wire distributing box for rail transit are arranged inside the wire distributing box.

[0014] The technical effects and advantages of the present invention:

[0015] 1. When installing the plug-in head in the present invention, the space formed by the arc-shaped sleeve, the arc-shaped plate, and the shielding member can prevent external dust and impurities from falling on the sleeve after applying silicone grease. Cooperating with the outward blowing air flow, dust-proof protection can be provided for the sleeve.

[0016] 2. The present invention enables the part of the shielding member in contact with the arc-shaped plate to be pressed by the cooperation of the rotating assembly, the cylinder, the rotating shaft, and the pressing plate, so that when operating in a high-wind area, the wind will not blow open the part where the shielding member fits with the arc-shaped plate, ensuring the dust-proof effect on the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shows a schematic structural diagram of the distribution box according to an embodiment of the present invention;

[0018] Figure 2 Shows a schematic structural diagram of the component combination of the distribution box according to an embodiment of the present invention and the quick-installation distribution box for rail transit cables;

[0019] Figure 3 Shows a schematic cross-sectional structural diagram of the component combination of the distribution box according to an embodiment of the present invention and the quick-installation distribution box for rail transit cables;

[0020] Figure 4 Shows the Figure 3 enlarged structural diagram at position A in;

[0021] Figure 5 Shows the Figure 4 enlarged structural diagram at position B in;

[0022] Figure 6 Shows a schematic structural diagram of the components of the quick-installation distribution box for rail transit cables according to an embodiment of the present invention;

[0023] Figure 7 Shows the Figure 6 enlarged structural diagram at position C in.

[0024] In the figure: 1. Sleeve; 2. Arc-shaped plate; 3. Arc-shaped sleeve; 4. Slide block; 5. Spring; 6. Thumb rod; 7. Shielding member; 8. Extrusion airbag; 9. Scraper; 10. Conduit; 11. Magnet; 12. Limit block; 13. Pushing groove; 14. Flap; 15. Limit plate; 16. Round hole; 17. Channel; 18. Electric air pump; 19. Carrier block; 20. Filter screen; 21. Hose; 22. Side plate; 23. Cylinder; 24. Pressing plate; 25. Torsion spring; 26. Long groove; 27. Distribution box; 28. Sealing cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0026] The present invention provides a component of a quick-installation distribution box for rail transit cables, such as Figures 1 to 7As shown in the figure, it includes a sleeve 1. A plurality of arc-shaped plates 2 are equidistantly sleeved around both sides of the sleeve 1. Magnets 11 are fixedly installed at both ends of the arc-shaped plates 2. The magnetic pole directions of adjacent magnets 11 are opposite. The plurality of arc-shaped plates 2 are connected by the adsorption and fixation between the magnets 11. An arc-shaped sleeve 3 is arranged outside the arc-shaped plates 2. A chute is opened on the outside of the arc-shaped plates 2. A slider 4 is slidably installed in the chute. The slider 4 is fixedly connected to the arc-shaped sleeve 3. A push rod 6 is fixedly installed on the side of the slider 4 away from the sleeve 1. A spring 5 is sleeved outside the push rod 6. Both ends of the spring 5 are fixedly connected to the inner wall of the chute and the slider 4 respectively. A limiting component is arranged outside the push rod 6 for limiting it. Accommodation openings are opened on both sides of the arc-shaped sleeve 3. A shielding member 7 is arranged between adjacent accommodation openings. Both ends of the shielding member 7 are fixedly connected to the inner walls of the adjacent accommodation openings. A closing cover 28 is commonly threadedly connected to the ends of the plurality of arc-shaped sleeves 3 away from the arc-shaped plates 2. A scraping plate 9 is fixedly installed in the middle of the inner wall of the arc-shaped sleeve 3. A cavity is arranged inside the scraping plate 9. A plurality of spray holes are arranged on the side of the scraping plate 9 close to the sleeve 1. An injection component is arranged outside the arc-shaped sleeve 3 for injecting silicone grease into the cavity. A blowing component is arranged inside the sleeve 1 for blowing air into the space formed by the unfolded arc-shaped sleeve 3 and the shielding member 7. A ring groove is arranged on the outside of the sleeve 1. A pushing groove 13 communicating with the ring groove is opened on the side of the sleeve 1 close to the closing cover 28. A limiting block 12 matched with the ring groove and matching the pushing groove 13 is fixedly installed on one of the arc-shaped plates 2. After the plurality of arc-shaped plates 2, arc-shaped sleeves 3 and closing cover 28 are combined into a whole, the limiting block 12 on the formed whole is pushed into the pushing groove 13, and then enters the ring groove. Subsequently, the formed whole is rotated so that the limiting block 12 is staggered from the pushing groove 13 and moves along the ring groove, realizing the assembly between the formed whole and the sleeve 1.

[0027] When the plug and socket need to be installed outside the sleeve 1, silicone grease is injected into the cavity through the injection component at this time. Then, the silicone grease is sprayed outside the sleeve 1 through the spray holes. At this time, rotate the arc-shaped plate 2 to drive the slider 4, the arc-shaped sleeve 3, and the scraper 9 to rotate, so as to evenly spread the silicone grease on the outside of the sleeve 1. After the application is completed, cancel the restriction of the limiting component on the ejector rod 6, and the spring 5 with tensile deformation releases the acting force to pull the slider 4 and the arc-shaped sleeve 3 to move away from the sleeve 1, so that the part of the sleeve 1 in contact with the plug and socket is exposed. As the multiple arc-shaped sleeves 3 separate, they are separated from the closing cover 28 at this time, and the multiple arc-shaped sleeves 3 separate from each other, pulling the shielding member 7 apart. Finally, the multiple arc-shaped sleeves 3, the arc-shaped plate 2, and the shielding member 7 jointly wrap the sleeve 1 inside. At this time, cooperate with the air blowing component to blow air, and the generated air flow moves from the sleeve 1 in the direction away from the sleeve 1, so as to prevent external dust and impurities from entering the space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7. The space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7 can prevent external dust and impurities from falling on the sleeve 1 after applying silicone grease. Cooperating with the outward blowing air flow can protect the sleeve 1 from dust. Then, insert the plug and socket onto the sleeve 1 for installation. When the plug enters the space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7, stop the operation of the air blowing component, and then perform the installation, so that during the entire installation process, no external dust will adhere to the outside of the sleeve 1, ensuring the cleanliness of the sleeve 1. After the installation is completed, cut the shielding member 7 with scissors, so that the connection between adjacent arc-shaped sleeves 3 is lost. Then, pull the arc-shaped plate 2 to separate them from each other and leave the sleeve 1. Since the sleeve 1 is initially located inside the arc-shaped sleeve 3 and the closing cover 28, there is no need to clean the sleeve 1 during installation, which can improve the installation speed.

[0028] As Figures 4 to 5 shown, the injection component includes an extrusion airbag 8 fixedly installed on the outside of the arc-shaped sleeve 3. There is an injection port on the outside of the extrusion airbag 8. A plunger is threadedly connected to the injection port. The inside of the extrusion airbag 8 is filled with silicone grease. One side of the extrusion airbag 8 is communicated with the inside of the scraper 9 through a conduit 10. A one-way valve is provided inside the conduit 10.

[0029] Extrude the extrusion airbag 8 to squeeze the internal silicone grease outwards. The silicone grease enters the cavity by pushing open the one-way valve through the conduit 10, and then is sprayed out of the spray holes to the outside of the sleeve 1.

[0030] As Figure 4 and Figure 6 shown, the limiting component includes a retaining piece 14 arranged on the outside of the arc-shaped plate 2. The retaining piece 14 is arc-shaped. Limiting ports are symmetrically arranged on the outside of the arc-shaped plate 2. A limiting plate 15 cooperating with the limiting port is arranged on the inside of the retaining piece 14. The limiting plate 15 is slidably arranged in the limiting port. The retaining piece 14 abuts against the ejector rod 6.

[0031] Pull the baffle 14 to move it in the direction close to the closing cover 28, so that the baffle 14 leaves the ejector rod 6, and the restriction on the ejector rod 6 is cancelled.

[0032] As Figures 3 to 6 shown, the air blowing assembly includes an annular cavity arranged inside the sleeve 1. A plurality of circular holes 16 communicating with the annular cavity are equidistantly arranged around one side of the sleeve 1 close to the arc-shaped sleeve 3. The circular holes 16 are blocked by the arc-shaped sleeve 3. A channel 17 communicating with the annular cavity is arranged on the outer side of the sleeve 1. The port of the channel 17 is provided with a thread, and a connector pipe is internally threaded in the port of the channel 17. One end of the connector pipe is connected to an electric air pump 18 through a hose 21. A filter screen 20 is arranged at the air suction end of the electric air pump 18, and a carrier block 19 is fixedly installed on the top of the electric air pump 18.

[0033] Start the electric air pump 18 to pump the outside air into it. After the air is filtered by the filter screen 20, it is ejected from the circular hole 16 through the hose 21, the channel 17, and the annular cavity, so as to blow air into the space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7, avoiding dust and impurities in the outside from entering the space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7. Rotate and separate the connector pipe from the channel 17, and connect the connector pipe to the channel 17 on another sleeve 1, so that air can be blown when installing another sleeve 1 and the plug.

[0034] As Figure 6 and Figure 7 shown, side plates 22 are symmetrically and fixedly installed on the outer side of the arc-shaped plate 2. A rotating shaft is rotatably installed on the inner side of the side plates 22. A cylinder 23 is fixedly sleeved on the outer part of the rotating shaft. A pressing plate 24 is fixedly installed on the outer side of the cylinder 23. One end of the rotating shaft passes through the side plate 22 and is sleeved with a torsion spring 25. Two ends of the torsion spring 25 are respectively fixedly connected to the side plate 22 and the rotating shaft. A rotating assembly is arranged outside the cylinder 23 for driving it to rotate.

[0035] When the wind is strong in the installation area, after the shielding member 7 is unfolded, the wind will blow open the part where the shielding member 7 is attached to the arc-shaped plate 2 at this time, so that dust enters the space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7, polluting the sleeve 1. Therefore, after the shielding member 7 is unfolded, the rotating assembly is used to drive the cylinder 23 and the rotating shaft to rotate, so as to drive the pressing plate 24 to move in the direction close to the shielding member 7. Finally, the pressing plate 24 presses the part where the shielding member 7 contacts the arc-shaped plate 2. During the rotation of the rotating shaft, the torsion spring 25 is torsionally deformed. By pressing the part where the shielding member 7 contacts the arc-shaped plate 2, when operating in a strong wind area, the situation that the wind blows open the part where the shielding member 7 is attached to the arc-shaped plate 2 will not occur, ensuring the dust-proof effect on the sleeve 1.

[0036] As Figure 7As shown, the rotating assembly includes a long slot 26 formed on the side of the baffle 14 close to the cylinder 23. The length of the long slot 26 is two-thirds of the width of the baffle 14. A rubber washer is sleeved outside the cylinder 23, and the baffle 14 can abut against the rubber washer.

[0037] Pull the baffle 14 to move it in the direction close to the closing cover 28. At this time, due to the existence of the long slot 26, the baffle 14 will not contact the rubber washer. At this time, the cylinder 23 is stationary. When the baffle 14 leaves the ejector rod 6, as the baffle 14 is continuously pulled, at this time the baffle 14 contacts the rubber washer, causing the cylinder 23 and the pressing plate 24 to rotate by relying on the friction force, so that the pressing plate 24 cooperates with the arc plate 2 to press the shielding member 7. When it is necessary to cancel the pressing, continue to pull the baffle 14, so that the baffle 14 slides relative to the rubber washer. Finally, the baffle 14 disengages from the arc plate 2. At this time, the torsion spring 25 releases the acting force and drives the rotating shaft, the cylinder 23, and the pressing plate 24 to reset and leave the shielding member 7.

[0038] As Figure 6 shown, the shielding member 7 is a dust filter cloth, and one side of the shielding member 7 is attached to the sleeve 1 and the arc plate 2.

[0039] So that the shielding member 7 can isolate external dust and impurities.

[0040] A quick-install cable distribution box for rail transit includes the components of the quick-install cable distribution box for rail transit as described above and a distribution box 27. The components of the quick-install cable distribution box for rail transit are arranged inside the distribution box 27.

[0041] The sleeve 1 is fixed inside the distribution box 27 by bolts. A track for the sliding of the load block 19 is provided on the top wall of the distribution box 27, and the load block 19 is slidably arranged in the track.

[0042] Working principle: When the plug and socket need to be installed outside the sleeve 1, at this time, silicone grease is injected into the cavity through the injection component. Subsequently, the silicone grease is sprayed outside the sleeve 1 through the spray holes. At this time, the arc-shaped plate 2 is rotated to drive the slider 4, the arc-shaped sleeve 3, and the scraper 9 to rotate, so that the silicone grease is evenly spread on the outside of the sleeve 1. After the application is completed, the retaining piece 14 is pulled to move it in the direction close to the closing cover 28, so that the retaining piece 14 leaves the ejector rod 6, canceling the restriction on the ejector rod 6. The spring 5 with tensile deformation releases the acting force to pull the slider 4 and the arc-shaped sleeve 3 to move away from the sleeve 1, so that the part of the sleeve 1 in contact with the plug and socket is exposed. As the multiple arc-shaped sleeves 3 are separated, at this time, they are separated from the closing cover 28, and the multiple arc-shaped sleeves 3 are separated from each other, pulling the shielding member 7 apart. Finally, the multiple arc-shaped sleeves 3, the arc-shaped plate 2, and the shielding member 7 jointly wrap the sleeve 1 inside. The electric air pump 18 is started to pump the outside air into it. The air is filtered through the filter screen 20 and then sprayed out from the round hole 16 through the hose 21, the channel 17, and the annular cavity, so as to blow air into the space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7, preventing external dust and impurities from entering the space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7. The space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7 can prevent external dust and impurities from falling on the sleeve 1 after applying silicone grease. Combined with the outward blowing air flow, it can provide dust protection for the sleeve 1. Subsequently, the plug and socket is inserted on the sleeve 1 for installation. When the plug enters the space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7, the electric air pump 18 is stopped, and then the installation is carried out, so that during the entire installation process, no external dust adheres to the outside of the sleeve 1, ensuring the cleanliness of the sleeve 1. After the installation is completed, the shielding member 7 is cut with scissors, so that the connection between adjacent arc-shaped sleeves 3 is lost. Subsequently, the arc-shaped plate 2 is pulled to separate them from each other and leave the sleeve 1; when the wind is strong in the installation area, after the shielding member 7 is unfolded, at this time, the wind will blow open the part where the shielding member 7 is attached to the arc-shaped plate 2, allowing dust to enter the space composed of the arc-shaped sleeve 3, the arc-shaped plate 2, and the shielding member 7 and polluting the sleeve 1. Therefore, after the shielding member 7 is unfolded, as the retaining piece 14 is continuously pulled, at this time, the retaining piece 14 contacts the rubber washer, causing the cylinder 23 and the pressing plate 24 to rotate by relying on the friction force, so that the pressing plate 24 cooperates with the arc-shaped plate 2 to press the shielding member 7. Finally, the pressing plate 24 presses the part where the shielding member 7 contacts the arc-shaped plate 2. During the rotation of the rotating shaft, the torsion spring 25 undergoes torsional deformation. By pressing the part where the shielding member 7 contacts the arc-shaped plate 2, it is ensured that when operating in a strong wind area, the wind will not blow open the part where the shielding member 7 is attached to the arc-shaped plate 2, ensuring the dust prevention effect on the sleeve 1. When the pressing needs to be cancelled, the retaining piece 14 is continuously pulled, so that the retaining piece 14 slides relative to the rubber washer. Finally, the retaining piece 14 disengages from the arc-shaped plate 2. At this time, the torsion spring 25 releases the acting force to drive the rotating shaft, the cylinder 23, and the pressing plate 24 to reset and leave the shielding member 7.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A component of a quick-install cable distribution box for rail transit, comprising a sleeve (1), characterized in that: On both sides of the sleeve (1), a plurality of arc-shaped plates (2) are equidistantly sleeved around. Magnets (11) are fixedly installed at both ends of the arc-shaped plates (2). The magnetic pole directions of adjacent magnets (11) are opposite. The plurality of arc-shaped plates (2) are connected by the adsorption and fixation between the magnets (11). An arc-shaped sleeve (3) is arranged outside the arc-shaped plate (2). A chute is opened on the outside of the arc-shaped plate (2). A slider (4) is slidably installed in the chute. The slider (4) is fixedly connected to the arc-shaped sleeve (3). A push rod (6) is fixedly installed on the side of the slider (4) away from the sleeve (1). A spring (5) is sleeved outside the push rod (6). The two ends of the spring (5) are respectively fixedly connected to the inner wall of the chute and the slider (4). A limiting component is arranged outside the push rod (6) for limiting it. Accommodation openings are opened on both sides of the arc-shaped sleeve (3). A shielding member (7) is arranged between adjacent accommodation openings. The two ends of the shielding member (7) are respectively fixedly connected to the inner walls of the adjacent accommodation openings. The ends of the plurality of arc-shaped sleeves (3) away from the arc-shaped plates (2) are commonly threadedly connected with a closing cover (28). A scraping plate (9) is fixedly installed in the middle of the inner wall of the arc-shaped sleeve (3). A cavity is arranged inside the scraping plate (9). A plurality of spray holes are arranged on the side of the scraping plate (9) close to the sleeve (1). An injection component is arranged outside the arc-shaped sleeve (3) for injecting silicone grease into the cavity. A blowing component is arranged inside the sleeve (1) for blowing air into the space formed by the unfolded arc-shaped sleeve (3) and the shielding member (7). A ring groove is arranged on the outside of the sleeve (1). A pushing groove (13) communicating with the ring groove is opened on one side of the sleeve (1) close to the closing cover (28). A limiting block (12) matching the ring groove and the pushing groove (13) is fixedly installed on one of the arc-shaped plates (2); The limiting component includes a retaining piece (14) arranged outside the arc-shaped plate (2). The retaining piece (14) is arc-shaped. Limiting openings are symmetrically arranged on the outside of the arc-shaped plate (2). A limiting plate (15) matching the limiting opening is arranged on the inner side of the retaining piece (14). The limiting plate (15) is slidably arranged in the limiting opening. The retaining piece (14) abuts against the push rod (6); The blowing component includes an annular cavity arranged inside the sleeve (1). A plurality of round holes (16) communicating with the annular cavity are equidistantly arranged around on one side of the sleeve (1) close to the arc-shaped sleeve (3). The round holes (16) are blocked by the arc-shaped sleeve (3). A channel (17) communicating with the annular cavity is opened on the outside of the sleeve (1). The port of the channel (17) has threads. A joint pipe is threadedly connected inside the port of the channel (17). One end of the joint pipe is connected to an electric air pump (18) through a hose (21). A filter screen (20) is arranged at the air suction end of the electric air pump (18). A carrier block (19) is fixedly installed on the top of the electric air pump (18).

2. The component of the quick-install cable distribution box for rail transit according to claim 1, characterized in that: The injection component includes an extrusion airbag (8) fixedly installed on the outer side of the arc-shaped sleeve (3). An injection port is provided on the outer side of the extrusion airbag (8). A plunger is threadedly connected to the injection port. The inside of the extrusion airbag (8) is filled with silicone grease. One side of the extrusion airbag (8) is communicated with the inside of a scraper (9) through a conduit (10). A one-way valve is provided inside the conduit (10).

3. The component of the quick-install cable distribution box for rail transit according to claim 2, characterized in that: Side plates (22) are symmetrically and fixedly installed on the outer side of the arc-shaped plate (2). A rotating shaft is rotatably installed on the inner side of the side plates (22). A cylinder (23) is fixedly sleeved on the outer part of the rotating shaft. A pressing plate (24) is fixedly installed on the outer side of the cylinder (23). One end of the rotating shaft passes through the side plate (22) and is sleeved with a torsion spring (25). The two ends of the torsion spring (25) are respectively fixedly connected to the side plate (22) and the rotating shaft. A rotating component for driving the cylinder (23) to rotate is provided on the outer part of the cylinder (23).

4. The component of the quick-install cable distribution box for rail transit according to claim 3, characterized in that: The rotating component includes a long groove (26) formed on the side of the baffle (14) close to the cylinder (23). The length of the long groove (26) is two-thirds of the width of the baffle (14). A rubber washer is sleeved on the outer part of the cylinder (23). The baffle (14) can be in contact with the rubber washer.

5. The component of the quick-install cable distribution box for rail transit according to claim 4, characterized in that: The shielding member (7) is a dust filter cloth. One side of the shielding member (7) is attached to the sleeve (1) and the arc-shaped plate (2).

6. A quick-install cable distribution box for rail transit, characterized in that: It includes the components of the rapid installation wire distribution box for rail transit as described in claim 5 above and a wire distribution box (27). The components of the rapid installation wire distribution box for rail transit are arranged inside the wire distribution box (27).

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