CN215708025U - Waterproof dehumidification cable distribution box - Google Patents

Abstract

The application provides a waterproof dehumidification cable distribution box belongs to dehumidification technical field. The waterproof dehumidification cable distribution box comprises a base and a dehumidification assembly. The base includes box and box body, the box top is provided with rain-proof lid, the dehumidification subassembly includes cable frame, heating pipe and ventilation pipe, the cable frame includes plate body and fixture block, plate body surface interval is provided with the recess, recess inner wall both sides interval is provided with the cable groove, the heating pipe with the box intercommunication, outside operating personnel pass the cable groove with each branched cable and be fixed in the terminal row on, the cable is separated by each cable groove, has reduced the laminating degree between each branched cable, and the drying air of being convenient for carries out dehumidification processing to the cable surface, and when drying air discharged through the ventilation pipe, ventilation pipe one end can blow away the raindrop that flows down from rain-proof lid, reduces the rainwater and gets into the box in a large number to improve dehumidification effect.

Description

Waterproof dehumidification cable distribution box

Technical Field

The application relates to the field of machinery, particularly, relates to a waterproof dehumidification cable distribution box.

Background

At present, the cable distribution box that adopts on the market, each branch cable is fixed in together through the ribbon then connect on the terminal row, because the laminating degree is high between the cable, leads to the difficult scattering and disappearing of moisture on cable surface, and current cable distribution box is not convenient for heat the drying to the box inside simultaneously, and inconvenient utilization exhaust humid air blows off the rainwater that rain-proof lid top flows down, leads to the rainwater to get into inside the box easily.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, this application provides a waterproof dehumidification cable distribution box, aims at improving that current cable distribution box is not convenient for separate each branch cable to carry out effectual dehumidification, inconvenient exhaust humid air that utilizes simultaneously blows off the rainwater that rain-proof lid top flows down, leads to the rainwater to get into the inside problem of box easily.

The embodiment of the application provides a waterproof dehumidification cable distribution box, including base and dehumidification subassembly.

The base includes box and box body, the box body is fixed in the bottom half, the box top is provided with rain-proof lid, dehumidification subassembly includes cable frame, heating pipe and ventilation pipe, cable frame includes plate body and fixture block, the plate body set up in the box inner wall, the plate body sets up to a plurality of, plate body surface interval is provided with the recess, recess inner wall both sides interval is provided with the cable groove, the fixture block slide set up in inside the recess, the fixture block with the cable groove laminating, ventilation pipe set up in the box top, ventilation pipe with the box intercommunication, ventilation pipe one end with rain-proof lid bottom corresponds the setting, the heating pipe is fixed in inside the box body, the heating pipe with the box intercommunication.

In the implementation process, the box body is arranged at the bottom of the box body, the heating pipe is arranged in the box body and is communicated with the inside of the box body, the inside of the box body is convenient to dehumidify by the arranged heating pipe, the plate bodies are arranged in the box body and are arranged into a plurality of parts at intervals, the surfaces of the plate bodies are provided with grooves, the intervals of the grooves are arranged into a plurality of parts, cable grooves are respectively arranged at two sides of the inner wall of each groove, the inner wall of each groove is provided with a fixture block in a sliding manner, an external operator passes through the cable grooves to fix the cables of each branch on the terminal row, the cables are separated by the cable grooves, the attaching degree between the cables of each branch is reduced, the dehumidification of the cable surface is convenient for dry air, meanwhile, the top of the box body is provided with a rain-proof cover and a ventilation pipeline, when the dry air is discharged through the ventilation pipeline, one end of the ventilation pipeline can blow away rain drops flowing from the rain-proof cover, reduce the rainwater and get into the box in a large number to improve dehumidification effect.

In a specific implementation scheme, the box body and one side of the box body are both provided with openings, and the opening of the box body are respectively provided with a first door body and a second door body.

In the above-mentioned realization process, box and box body one side are the opening setting, and box body opening part are provided with the first door body and the second door body respectively, through the first door body and the second door body that set up, conveniently protect box and box body, avoid the rainwater to get into box and the door body in a large number.

In a specific implementation scheme, a locking block is arranged on the surface of the first door body, a lock body is arranged on the inner wall of the box body, the locking block is fixed with the lock body, and a sealing strip is arranged at the opening of the box body.

In the above-mentioned realization process, first door body surface is provided with the locking piece, and the box inner wall is provided with the lock body, and the locking piece is fixed with the lock body, and the box opening part is provided with the sealing strip, conveniently improves the sealed effect of first door body and box opening part through the sealing strip that sets up, is convenient for improve factor of safety through the lock body and the locking piece that set up simultaneously.

In a specific embodiment, the lock block is also arranged on the surface of the second door body, the lock body is also fixed on one side of the box body, and a sealing strip is also arranged at the opening of the box body.

In the above-mentioned realization process, second door body surface also is provided with the locking piece, and box body one side also is fixed with the lock body, conveniently improves the sealed effect of second door body and box body opening part through the sealing strip that sets up, is convenient for improve factor of safety through the lock body and the locking piece that set up simultaneously.

In a specific embodiment, a pipe frame is arranged at the top of the box body, and the rain-proof cover is fixed at the top of the pipe frame.

In the above-mentioned realization process, through the pipe support that sets up, it is fixed that the convenience supports first body and second body, and the rain-proof lid top rainwater that falls is blown away to the second body of also being convenient for, avoids inside the rainwater gets into the box in a large number, improves damp-proof effect.

In a specific embodiment, the ventilation pipeline includes first body and second body, first body fixed run through in the pipe support with the box, the second body sets up to a plurality of, a plurality of the second body is fixed run through in the pipe support both sides, and is adjacent the second body passes through first body intercommunication, first body with the box intercommunication.

In the above-mentioned realization process, the first body through setting up is convenient to be derived dry air for the air that the drying was accomplished can be in the same direction as the pipe discharge, and the second body blows off dry air, is convenient for blow away rain-proof lid top raindrop that falls.

In a specific embodiment, both sides of the inner wall of the groove are provided with sliding grooves, and both sides of the fixture block are provided with block bodies which slide on the inner wall of the sliding grooves.

In the above-mentioned realization process, recess inner wall both sides all are provided with the spout, and the fixture block both sides are provided with the block, and the block slides at the spout inner wall, through spout and the block that sets up, makes things convenient for the fixture block to slide in the recess is inside, and the tight cable in pull fixture block top of being convenient for is outside, avoids the cable not hard up, influences the power supply and uses.

In a specific embodiment, a limiting block is arranged on one side of the sliding groove, the block body is fixed with the sliding groove through the limiting block, and a pull ring is arranged on one side of the clamping block.

In the above-mentioned realization process, spout one side is provided with the stopper, and fixture block one side is provided with the pull ring, and the stopper that sets up simultaneously avoids the pull fixture block dynamics to take the fixture block out excessively through the pull ring convenience pull fixture block that sets up.

In a specific embodiment, the heating pipe includes an air heater, a filter pipe and an air supply pipeline, the air heater and the filter pipe are disposed inside the box body, and the filter pipe is communicated with an input end of the air heater.

In the implementation process, the hot air blower and the filter tube are arranged, so that filtered dry air can be conveniently and continuously provided inside the box body, the box body is convenient to dry in a humid environment, and the cable use environment inside the box body is improved.

In a specific implementation scheme, the air supply pipeline comprises a third pipe body and a fourth pipe body, the fourth pipe body is fixed at the bottom in the box body, through holes are formed in the surface of the fourth pipe body at intervals, and the third pipe body is communicated with the output end of the air heater and the fourth pipe body respectively.

In the above-mentioned realization process, through the third body and the fourth body that set up, the convenience is carried dry air to the box inside, is convenient for carry out dehumidification from the box inner bottom and handles, improves the holistic service environment of box.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural view of a waterproof and dehumidifying cable distribution box provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a portion of a dehumidification assembly provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a base portion provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a cable tray provided in an embodiment of the present application;

FIG. 5 is a schematic view of a chute portion according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a stopper provided in an embodiment of the present application;

FIG. 7 is a block portion schematic view of an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a portion of an air supply pipeline provided in an embodiment of the present application.

In the figure: 100-a base; 110-a box body; 111-a first door body; 1111-locking block; 112-a lock body; 113-pipe frame; 120-a cartridge; 121-a second door body; 140-rain cover; 150-a sealing strip; 200-a dehumidification assembly; 210-a cable rack; 211-plate body; 2111-groove; 2112-cable tray; 2113-chute; 2114-stop block; 212-a fixture block; 2121-block body; 2122-a pull ring; 230-heating tube; 231-a hot air blower; 232-filter tube; 233-air supply pipeline; 2331-a third tube; 2332-a fourth tube; 2333-a through hole; 240-ventilation lines; 241-a first tube; 242 — second tube.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-8, the present application provides a waterproof and dehumidifying cable distribution box including a base 100 and a dehumidifying assembly 200.

Referring to fig. 1-3, the base 100 includes a box 110 and a box 120, the box 120 is fixed to the bottom of the box 110 by bolts, and a rain cover 140 is disposed on the top of the box 110 to block rainwater from entering the top of the box 110.

In some specific embodiments, both sides of the box body 110 and the box body 120 are provided with openings, the openings of the box body 110 and the box body 120 are respectively provided with a first door body 111 and a second door body 121, the openings of the box body 110 and the box body 120 are both fixed with hinges, and the other ends of the hinges are respectively fixed on one sides of the first door body 111 and the second door body 121 through bolts.

In some specific embodiments, a locking block 1111 is arranged on the surface of the first door body 111, a locking block 1111 is fixed on the surface of the first door body 111 through bolts, a lock body 112 is arranged on the inner wall of the box body 110, a lock body 112 is fixed on the inner wall of the box body 110 through bolts, the locking block 1111 is fixed with the lock body 112, a sealing strip 150 is arranged at the opening of the box body 110, the sealing strip 150 is fixedly adhered to the opening of the box body 110, the sealing effect at the opening of the first door body 111 and the opening of the box body 110 is conveniently improved through the arranged sealing strip 150, and meanwhile, the safety factor is conveniently improved through the arranged lock body 112 and the locking block 1111.

In some specific embodiments, a lock block 1111 is also disposed on the surface of the second door body 121, the lock block 1111 is also fixed on the surface of the second door body 121 through a bolt, a lock body 112 is also fixed on one side of the box body 120, the lock body 112 is also fixed on one side of the box body 120 through a bolt, a sealing strip 150 is also disposed at the opening of the box body 120, the sealing strip 150 is also fixed at the opening of the box body 120 through adhesion, the sealing effect at the openings of the second door body 121 and the box body 120 is conveniently improved through the arranged sealing strip 150, and meanwhile, the safety factor is conveniently improved through the arranged lock body 112 and the lock block 1111.

In some specific embodiments, box 110 top is provided with pipe support 113, box 110 top has pipe support 113 through the bolt fastening, rain-proof lid 140 is fixed in the 113 tops of pipe support, rain-proof lid 140 welded fastening in the 113 tops of pipe support, pipe support 113 through setting up, it is fixed that the convenience supports first body 241 and second body 242, the rainwater that the rain-proof lid 140 top of also being convenient for second body 242 blows off falls off, inside avoiding the rainwater to get into box 110 in a large number, improve damp-proof effect.

Referring to fig. 1-8, the dehumidifying assembly 200 includes a cable rack 210, a heating pipe 230 and a plurality of ventilation pipes 240, the cable rack 210 includes a plate 211 and a plurality of clips 212, the plate 211 is disposed on an inner wall of the box 110, the plate 211 is fixed on the inner wall of the box 110 by bolts, the plate 211 is provided with a plurality of grooves 2111 at intervals, cable grooves 2112 are disposed at intervals on two sides of the inner wall of the groove 2111, the clips 212 are slidably disposed inside the grooves 2111, the clips 212 are attached to the cable grooves 2112, the ventilation pipes 240 are disposed on the top of the box 110, the ventilation pipes 240 are communicated with the box 110, one end of the ventilation pipes 240 is disposed corresponding to the bottom of the rain cover 140, the heating pipe 230 is fixed inside the box 120, the heating pipe 230 is communicated with the box 110, an external operator fixes each branched cable on the terminal row by passing through the cable grooves 2112, the cable is separated by each cable groove 2112, and the attachment degree between each branched cable is reduced, be convenient for dry air carries out dehumidification to cable surface, and box 110 top is provided with rain-proof lid 140 and ventilation pipe 240 simultaneously, and when dry air passed through ventilation pipe 240 and discharged, ventilation pipe 240 one end can be blown away the raindrop that flows down from rain-proof lid 140, reduces the rainwater and gets into box 110 in a large number to improve dehumidification effect.

In some specific embodiments, the ventilation pipeline 240 includes a first pipe 241 and a second pipe 242, the first pipe 241 is fixedly penetrated through the pipe support 113 and the box 110, the second pipe 242 is provided in a plurality of numbers, the second pipe 242 is fixedly penetrated through two sides of the pipe support 113, the second pipe 242 is welded and communicated with the first pipe 241, the adjacent second pipe 242 is communicated with the first pipe 241, the first pipe 241 is communicated with the box 110, dry air is conveniently led out through the first pipe 241, so that the air after drying can be discharged along the pipe, the second pipe 242 blows out the dry air, and rain drops falling from the top of the rain cover 140 can be blown away.

In some specific embodiments, sliding grooves 2113 are formed in both sides of the inner wall of the groove 2111, blocks 2121 are formed in both sides of the fixture block 212, the blocks 2121 are welded and fixed to both sides of the fixture block 212, the blocks 2121 slide in the inner wall of the sliding grooves 2113, the fixture block 212 can conveniently slide in the groove 2111 through the arranged sliding grooves 2113 and the blocks 2121, the fixture block 212 can be conveniently pulled and tightly pushed against the outside of the cable, the cable is prevented from loosening, and power supply use is prevented from being affected.

In some specific embodiments, a limiting block 2114 is arranged on one side of the sliding groove 2113, a limiting block 2114 is welded on one side of the sliding groove 2113, the block body 2121 is fixed to the sliding groove 2113 through the limiting block 2114, a pull ring 2122 is arranged on one side of the fixture block 212, the pull ring 2122 is welded and fixed on one side of the fixture block 212, the fixture block 212 can be conveniently pulled through the set pull ring 2122, and the limiting block 2114 is arranged at the same time, so that the fixture block 212 is prevented from being pulled out due to too large force of the pulling fixture block 212.

In some specific embodiments, the heating pipe 230 includes an air heater 231, a filter pipe 232 and an air supply pipeline 233, the air heater 231 and the filter pipe 232 are disposed inside the box body 120, the air heater 231 is fixed inside the box body 120 by bolts, the filter pipe 232 is communicated with an input end of the air heater 231 by a flange, filtered dry air is continuously provided inside the box body 110 by the air heater 231 and the filter pipe 232, drying treatment is performed on a humid environment of the box body 110, and a cable use environment inside the box body 110 is improved.

In some specific embodiments, the air supply pipeline 233 includes a third pipe 2331 and a fourth pipe 2332, the fourth pipe 2332 is fixed to the bottom of the box 110 by bolts, through holes 2333 are formed at intervals on the surface of the fourth pipe 2332, an air pipe is welded to the surface of the third pipe 2331 and penetrates through the box 110 and the box 120, one end of the air pipe is welded to the fourth pipe 2332, the third pipe 2331 is respectively communicated to the output end of the hot air blower 231 and the fourth pipe 2332, the output end of the hot air blower 231 is also communicated to the air pipe by a flange, one end of the air pipe is communicated to the third pipe 2331, and dry air is conveniently delivered to the inside of the box 110 by the third pipe 2331 and the fourth pipe 2332, so that dehumidification treatment can be conveniently performed from the bottom of the box 110, and the use environment of the whole box 110 can be improved.

This waterproof dehumidification cable distribution box's theory of operation: when in use, the box body 120 is arranged at the bottom of the box body 110, the heating pipe 230 is arranged in the box body 120, the heating pipe 230 is communicated with the box body 110, the interior of the box body 110 is convenient to dehumidify by the arranged heating pipe 230, the box body 110 is internally provided with the plate bodies 211, a plurality of plate bodies 211 are arranged at intervals, the surface of the plate body 211 is provided with the grooves 2111, a plurality of grooves 2111 are arranged at intervals, cable grooves 2112 are respectively arranged at two sides of the inner wall of each groove 2111, the inner wall of each groove 2111 is slidably provided with the fixture block 212, each branch cable passes through the cable groove 2112 to be fixed on the terminal strip, the cable is separated by each cable groove 2112, the attaching degree between each branch cable is reduced, the dehumidification of the cable surface by dry air is convenient, meanwhile, the rain cover 140 and the ventilation pipeline 240 are arranged at the top of the box body 110, when the dry air is exhausted through the ventilation pipeline 240, the rain drops flowing down from the rain cover 140 can be blown away by one end of the ventilation pipeline 240, so that rainwater is reduced to enter the box body 110 in a large amount, and the dehumidification effect is improved.

It should be noted that the specific model specification of the air heater 231 needs to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the hot air blower 231 and its principle will be clear to those skilled in the art and will not be described in detail herein.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A waterproof dehumidification cable distribution box is characterized by comprising

The base (100) comprises a box body (110) and a box body (120), the box body (120) is fixed at the bottom of the box body (110), and a rainproof cover (140) is arranged at the top of the box body (110);

the dehumidifying component (200), the dehumidifying component (200) comprises a cable rack (210), a heating pipe (230) and a ventilation pipeline (240), the cable rack (210) comprises a plate body (211) and a clamping block (212), the plate body (211) is arranged on the inner wall of the box body (110), the plate body (211) is provided with a plurality of grooves (2111) at intervals, cable grooves (2112) are arranged at intervals on two sides of the inner wall of the groove (2111), the clamping block (212) is arranged inside the groove (2111) in a sliding mode, the clamping block (212) is attached to the cable grooves (2112), the ventilation pipeline (240) is arranged at the top of the box body (110), the ventilation pipeline (240) is communicated with the box body (110), one end of the ventilation pipeline (240) is arranged corresponding to the bottom of the rain cover (140), the heating pipe (230) is fixed inside the box body (120), the heating pipe (230) is communicated with the box body (110).

2. The waterproof and dehumidifying cable distribution box according to claim 1, wherein the box body (110) and the box body (120) are both provided with openings, and a first door body (111) and a second door body (121) are respectively arranged at the openings of the box body (110) and the box body (120).

3. The waterproof and dehumidifying cable distribution box of claim 2, wherein a lock block (1111) is disposed on a surface of the first door body (111), a lock body (112) is disposed on an inner wall of the box body (110), the lock block (1111) is fixed to the lock body (112), and a sealing strip (150) is disposed at an opening of the box body (110).

4. The waterproof and dehumidifying cable distribution box of claim 3, wherein the lock block (1111) is also arranged on the surface of the second door body (121), the lock body (112) is also fixed on one side of the box body (120), and a sealing strip (150) is also arranged at the opening of the box body (120).

5. The waterproof dehumidification cable distribution box according to claim 3, wherein a pipe frame (113) is arranged at the top of the box body (110), and the rain-proof cover (140) is fixed at the top of the pipe frame (113).

6. The waterproof and dehumidifying cable distribution box of claim 5, wherein the ventilation pipeline (240) comprises a first pipe body (241) and a second pipe body (242), the first pipe body (241) is fixedly penetrated through the pipe frame (113) and the box body (110), the second pipe bodies (242) are arranged in a plurality of numbers, the second pipe bodies (242) are fixedly penetrated through two sides of the pipe frame (113), the adjacent second pipe bodies (242) are communicated through the first pipe body (241), and the first pipe body (241) is communicated with the box body (110).

7. The waterproof and dehumidifying cable distribution box of claim 6, wherein sliding grooves (2113) are formed in both sides of the inner wall of the groove (2111), blocks (2121) are formed in both sides of the block (212), and the blocks (2121) slide on the inner wall of the sliding grooves (2113).

8. The waterproof and dehumidifying cable distribution box of claim 7, wherein a stopper (2114) is disposed on one side of the sliding groove (2113), the block (2121) is fixed to the sliding groove (2113) through the stopper (2114), and a pull ring (2122) is disposed on one side of the block (212).

9. The waterproof and dehumidifying cable distribution box of claim 8, wherein the heating pipe (230) comprises an air heater (231), a filter pipe (232) and an air supply pipeline (233), the air heater (231) and the filter pipe (232) are disposed inside the box body (120), and the filter pipe (232) is connected to an input end of the air heater (231).

10. The drop box of claim 9, wherein the air supply line (233) comprises a third pipe (2331) and a fourth pipe (2332), the fourth pipe (2332) is fixed to the bottom of the box (110), through holes (2333) are formed in the surface of the fourth pipe (2332) at intervals, and the third pipe (2331) is respectively communicated with the output end of the hot air blower (231) and the fourth pipe (2332).

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