CN214307412U - Air humidifying dust pelletizing system - Google Patents

Abstract

The utility model discloses an air humidifying and dust removing system, which comprises a humidifying device, a control box and a humidity acquisition node; the humidifying device comprises a cuboid shell, a circulating fan, an air inlet pipeline, a spraying and humidifying mechanism, an air filtering mechanism and an outlet filtering mechanism; a main controller, a main wireless communication module and a motor driving circuit are arranged in the control box; a display screen, a humidity increasing button, a humidity decreasing button, a starting button and a stopping button are arranged on the side surface of the control box; the humidity acquisition node comprises a node shell, a humidity sensor and an elastic binding belt; a slave controller and a slave wireless communication module are arranged in the node shell. The air humidifying and dust removing system can filter fog drops in air flow by using the outlet filtering mechanism, so that large-particle water drops are prevented from being discharged out of the cuboid shell along with the air flow; the air output of the humidifying device can be adjusted according to the feedback value by utilizing the feedback control of the control box and the humidity acquisition node.

Description

Air humidifying dust pelletizing system

Technical Field

The utility model relates to a humidification dust collector, especially an air humidification dust pelletizing system.

Background

At present, in the generation process of a plurality of workshops, a large amount of dust exists, the health of workers can be seriously influenced if the workshops work in the environment for a long time, the existing countermeasure is to discharge the dust through an exhaust fan, only polluted air is discharged out of the workshops, external air pollution is caused, and the air purification effect in the workshops is not good. Therefore, it is necessary to design an air humidifying and dust removing system, which can filter and humidify the air in the workshop.

Disclosure of Invention

Utility model purpose: the air humidifying and dust removing system can filter and humidify air in a workshop.

The technical scheme is as follows: the air humidifying and dedusting system of the utility model comprises a humidifying device, a control box and a humidity acquisition node; the humidifying device comprises a cuboid shell, a circulating fan, an air inlet pipeline, a spraying and humidifying mechanism, an air filtering mechanism and an outlet filtering mechanism; a main controller, a main wireless communication module and a motor driving circuit are arranged in the control box; a display screen, a humidity increasing button, a humidity decreasing button, a starting button and a stopping button are arranged on the side surface of the control box; the humidity acquisition node comprises a node shell, a humidity sensor and an elastic binding belt; a slave controller and a slave wireless communication module are arranged in the node shell;

a partition plate is vertically arranged in the cuboid shell and is used for dividing the interior of the cuboid shell into a left cavity and a right cavity; the bottom of the cuboid shell is provided with a supporting footing; the circulating fan is fixedly arranged on the bottom of the right cavity; the lower end of the air inlet pipeline is in butt joint with an air inlet of the circulating fan; an air inlet butt joint pipe which is butted with the upper end of the air inlet pipeline is arranged on the top of the cuboid shell; a ventilation window is arranged on the partition plate, and an air outlet conical cover butted with the ventilation window is installed on an air outlet of the circulating fan in a butt joint manner; a driving motor of the circulating fan is fixedly arranged on the outer side surface of the cuboid shell through a motor support;

the spraying and humidifying mechanism comprises two branch spraying mechanisms which are fixedly arranged on the inner walls of the front side and the rear side of the left cavity respectively, and each branch spraying mechanism comprises a vertical communicating pipe, a water drop collecting tank, at least one transverse communicating pipe and a spraying head which is arranged on each transverse communicating pipe at intervals; a longitudinal communicating pipe is communicated between the vertical communicating pipes of the two branch spraying mechanisms, the front end part of the longitudinal communicating pipe penetrates through the front side wall of the cuboid shell, and a butt joint mounting flange is arranged on the penetrating end part; the transverse communicating pipe is transversely and fixedly arranged on the inner wall of the corresponding side of the left cavity; the water droplet collecting tank is fixedly arranged on the inner bottom of the left cavity and is used for collecting water droplets sprayed by each spray header; a drain pipe extending out of the cuboid shell is communicated with the bottom of the water drop collecting tank;

an air outlet window is arranged on the left side end face of the cuboid shell, and an outlet filtering mechanism is fixedly arranged at the air outlet window and used for filtering fog drops in air flow; the air filtering mechanism is arranged on the air inlet pipeline and is used for filtering the entering air flow;

the control box is fixedly arranged on the cuboid shell; the main controller is electrically connected with the main wireless communication module, the motor driving circuit, the display screen, the humidity increasing key, the humidity decreasing key, the starting key and the stopping key respectively; the motor driving circuit is electrically connected with the driving motor; the humidity sensor is fixedly arranged at the top of the node shell, and the slave controller is electrically connected with the humidity sensor and the slave wireless communication module respectively; the elastic binding belt is provided with positioning holes at intervals, and two ends of the elastic binding belt penetrate through the positioning holes at corresponding positions through two positioning bolts and are respectively fixed on the left side surface and the right side surface of the node shell; the master wireless communication module wirelessly communicates with the slave wireless communication module.

Further, the air filtering mechanism comprises a rectangular mounting plate, a filtering plugboard and an air filter screen; the rectangular mounting plate is installed on the air inlet pipeline in a cutting mode, and a ventilation rectangular hole convenient for ventilation of the air inlet pipeline is formed in the middle of the rectangular mounting plate; the right side edge of the rectangular mounting plate extends out of the cuboid shell, and a rectangular jack is arranged on the right side edge of the rectangular mounting plate and extends to the ventilation rectangular hole; the filtering plugboard is inserted in the rectangular jack, and a filtering window is arranged on the filtering plugboard and at the position corresponding to the ventilating rectangular hole; the air filter screen is fixedly arranged on the filter window.

Furthermore, a push-pull handle is arranged on the right side edge of the filtering plugboard; a positioning hole is formed in the filtering inserting plate and close to the push-pull handle; and a positioning bolt is vertically inserted on the rectangular mounting plate, and the end part of the positioning bolt is inserted into the positioning hole.

Furthermore, all be provided with the elastic sealing strip on the preceding side of filtering the picture peg, back side and left side edge, all be provided with the socket sealing strip on the right side edge downside of filtering the picture peg.

Furthermore, a support short column is arranged in the water drop collecting tank, and a water drop filter screen is horizontally arranged on the support short column and laid in the water drop collecting tank.

Further, the outlet filtering mechanism comprises a rectangular mounting frame, a filtering steel wire mesh plate and a strip-shaped water tank; the rectangular mounting frame is fixedly mounted on the left end face of the rectangular shell and is in butt joint with the air outlet window; the strip-shaped water tank is longitudinally arranged at the lower side in the rectangular mounting frame; the inner walls of the front side and the rear side of the rectangular mounting frame are both vertically provided with a limiting barrier strip; the filtering steel wire mesh plate is vertically arranged in the rectangular mounting frame, the front side and the rear side of the right side of the filtering steel wire mesh plate are tightly attached to the limiting barrier strips, and the front side and the rear side of the left side are blocked and limited by limiting bolts arranged in the rectangular mounting frame; the lower side edge of the filtering steel wire mesh plate is inserted into the strip-shaped water tank; and a side water pipe penetrating and extending out of the rectangular mounting frame is arranged on the left side of the strip-shaped water tank.

Furthermore, the left side and the right side of the bottom of the node shell are respectively provided with an installation side lug, and the installation side lugs are provided with shell fixing holes; two ends of the elastic binding belt respectively penetrate through the two mounting side ears.

Compared with the prior art, the utility model, its beneficial effect is: the outlet filtering mechanism can be used for filtering fog drops in the air flow, so that large-particle water drops are prevented from being discharged out of the cuboid shell along with the air flow; the air filtering mechanism can be used for filtering the entering air flow, so that sundries are prevented from entering the cuboid shell; the front side and the rear side of the airflow flowing through the left cavity can be relatively sprayed and humidified by the spraying and humidifying mechanism, and sufficient air quantity is provided by the circulating fan, so that the humidifying requirement of a large workshop can be met; the water drops can be collected by the aid of the water drop collecting tank and the water drainage pipe, recycling is facilitated, and waste of water resources is avoided; the main wireless communication module is in wireless communication with the slave wireless communication module, so that the actually measured humidity value is fed back to the main controller, and the main controller controls the rotating speed of the driving motor according to the relation between the actually measured humidity value and the set humidity value, so that the intelligent and stable control of the humidity is realized; the elastic binding belt and the two positioning bolts are matched for installation, so that the node shell can be conveniently bound and fixed.

Drawings

Fig. 1 is a schematic structural view of a humidifying device of the present invention;

FIG. 2 is a schematic view of a humidity collection node structure of the present invention;

fig. 3 is a schematic diagram of a system circuit structure of the present invention;

fig. 4 is a schematic view of a partial sectional structure of the humidifying device of the present invention;

FIG. 5 is a schematic view of the mounting structure of the air filter of the present invention;

fig. 6 is a schematic view of the structure of the filtering insert plate of the present invention.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1:

as shown in fig. 1-6, the utility model discloses an air humidification dust pelletizing system includes: a humidifying device, a control box 46 and a humidity acquisition node; the humidifying device comprises a rectangular shell 1 of the humidifying device, a circulating fan 25, an air inlet pipeline 22, a spraying humidifying mechanism, an air filtering mechanism and an outlet filtering mechanism; a main controller, a main wireless communication module and a motor driving circuit are arranged in the control box 46; a display screen 47, a humidity increasing button 50, a humidity decreasing button 51, a start button 48 and a stop button 49 are provided on the side of the control box 46; the humidity acquisition node comprises a node shell 40, a humidity sensor 45 and an elastic binding belt 43; a slave controller and a slave wireless communication module are provided in the node case 40;

a partition plate 27 is vertically arranged in the cuboid housing 1 and is used for dividing the interior of the cuboid housing 1 into a left cavity and a right cavity; a supporting foot 3 is arranged at the bottom of the cuboid shell 1; the circulating fan 25 is fixedly arranged on the bottom of the right cavity; the lower end of the air inlet pipeline 22 is in butt joint with an air inlet of the circulating fan 25; an air inlet butt joint pipe 2 which is butt jointed with the upper end of an air inlet pipeline 22 is arranged on the top of the cuboid shell 1; a ventilation window is arranged on the partition plate 27, and an air outlet conical cover 26 butted with the ventilation window is installed on an air outlet of the circulating fan 25 in a butt joint manner; a driving motor 7 of the circulating fan 25 is fixedly arranged on the outer side surface of the cuboid shell 1 through a motor support;

the spraying and humidifying mechanism comprises two branch spraying mechanisms which are fixedly arranged on the inner walls of the front side and the rear side of the left cavity respectively, and each branch spraying mechanism comprises a vertical communicating pipe 28, a water drop collecting tank 36, at least one transverse communicating pipe 29 and a spraying head 30 which is arranged on each transverse communicating pipe 29 at intervals; a longitudinal communication pipe 39 is communicated between the vertical communication pipes 28 of the two branch spraying mechanisms, the front end part of the longitudinal communication pipe 39 penetrates through the front side wall of the cuboid shell 1, and a butt joint mounting flange 8 is arranged on the penetrating end part; the transverse communicating pipe 29 is transversely and fixedly arranged on the inner wall of the corresponding side of the left cavity; a water drop collecting tank 36 is fixedly arranged on the inner bottom of the left cavity and is used for collecting water drops sprayed by the spray headers 30; the bottom of the water drop collecting tank 36 is communicated with a water discharge pipe 6 extending out of the cuboid shell 1;

an air outlet window 33 is arranged on the left side end face of the cuboid shell 1, and an outlet filtering mechanism is fixedly arranged at the air outlet window and used for filtering fog drops in air flow; the air filtering mechanism is arranged on the air inlet pipeline 22 and is used for filtering the inlet air flow;

the control box 46 is fixedly installed on the rectangular case 1; the main controller is electrically connected with the main wireless communication module, the motor driving circuit, the display screen 47, the humidity increasing key 50, the humidity decreasing key 51, the starting key 48 and the stopping key 49 respectively; the motor driving circuit is electrically connected with the driving motor 7; the humidity sensor 45 is fixedly arranged at the top of the node shell 40, and the slave controller is electrically connected with the humidity sensor 45 and the slave wireless communication module respectively; the elastic binding band 43 is provided with positioning holes at intervals, and two ends of the elastic binding band 43 penetrate through the positioning holes at corresponding positions through two positioning bolts 44 and are respectively fixed on the left side surface and the right side surface of the node shell 40; the master wireless communication module wirelessly communicates with the slave wireless communication module.

The outlet filtering mechanism can be used for filtering the fog drops in the air flow, so that large-particle water drops are prevented from being discharged out of the cuboid shell 1 along with the air flow; the air filtering mechanism can be used for filtering the entering air flow, so that sundries are prevented from entering the cuboid shell 1; the front side and the rear side of the airflow flowing through the left cavity can be relatively sprayed and humidified by the spraying and humidifying mechanism, and sufficient air quantity is provided by the circulating fan 25, so that the humidifying requirement of a large workshop can be met; the water drops can be collected by the aid of the water drop collecting tank 36 and the drain pipe 6, recycling is facilitated, and waste of water resources is avoided; the main wireless communication module is in wireless communication with the slave wireless communication module, so that the actually measured humidity value is fed back to the main controller, and the main controller controls the rotating speed of the driving motor 7 according to the relation between the actually measured humidity value and the set humidity value, so that the intelligent and stable control of the humidity is realized; the joint housing 40 can be conveniently bound and fixed by means of the matched installation of the elastic binding band 43 and the two positioning bolts 44.

Further, the air filtering mechanism comprises a rectangular mounting plate 9, a filtering inserting plate 10 and an air filtering net 17; the rectangular mounting plate 9 is installed on the air inlet pipeline 22 in a cutting mode, and a ventilation rectangular hole convenient for ventilation of the air inlet pipeline 22 is formed in the middle of the rectangular mounting plate 9; the right side edge of the rectangular mounting plate 9 extends out of the cuboid shell 1, a rectangular jack 23 is arranged on the right side edge of the rectangular mounting plate 9, and the rectangular jack 23 extends to the ventilation rectangular hole; the filtering plugboard 10 is inserted in the rectangular jack 23, and a filtering window 16 is arranged on the filtering plugboard 10 and at the position corresponding to the ventilating rectangular hole; an air screen 17 is fixedly mounted on the filter window 16. The use of a detachably mounted filter insert 10 facilitates later cleaning and replacement.

Further, a push-pull handle 11 is arranged on the right side edge of the filtering plugboard 10; a positioning hole 13 is arranged on the filtering inserting plate 10 and close to the push-pull handle 11; a positioning bolt 12 is vertically inserted on the rectangular mounting plate 9, and the end part of the positioning bolt 12 is inserted into the positioning hole 13. The push-pull handle 11 is convenient to insert; the filter insert plate 10 can be fixed by means of the cooperation of the positioning pin 12 and the positioning hole 13.

Furthermore, all be provided with elasticity sealing strip 15 on the preceding side of filtering picture peg 10, back side and left side edge, all be provided with socket sealing strip 18 on the downside of the right side edge of filtering picture peg 10. The sealing of the filter insert 10 after insertion is ensured by the elastic sealing strip 15 and the insertion opening sealing strip 18.

Further, a support stub 37 is provided in the water droplet collecting tank 36, and a water droplet filtering net 38 is horizontally mounted on the support stub 37 and laid in the water droplet collecting tank 36. The water drop filter screen 38 can filter the water drops with impurities, so as to avoid blocking the spray header 30 during recycling.

Further, the outlet filtering mechanism comprises a rectangular mounting frame 4, a filtering steel wire mesh plate 31 and a strip-shaped water tank 35; the rectangular mounting frame 4 is fixedly mounted on the left end face of the cuboid-shaped shell 1 and is butted with the air outlet window 33; the strip-shaped water tank 35 is longitudinally arranged at the lower side in the rectangular mounting frame 4; the inner walls of the front side and the rear side of the rectangular mounting frame 4 are both vertically provided with a limiting barrier strip 32; the filtering steel wire mesh plate 31 is vertically installed in the rectangular installation frame 4, the front side and the rear side of the right side of the filtering steel wire mesh plate 31 are tightly attached to the limiting barrier strips 32, and the front side and the rear side of the left side are blocked and limited by limiting bolts 34 installed in the rectangular installation frame 4; the lower side edge of the filtering steel wire mesh plate 31 is inserted into the strip-shaped water tank 35; and a side water pipe 5 penetrating and extending out of the rectangular mounting frame 4 is arranged on the left side of the strip-shaped water tank 35. Utilize and filter steel wire mesh board 31 can make the large granule droplet collision adsorb when water smoke passes through to in trickling down to bar basin 35, discharge cyclic utilization by side water pipe 5 again.

Further, the left side and the right side of the bottom of the node shell 40 are respectively provided with an installation side lug 41, and the installation side lugs 41 are provided with shell fixing holes 42; both ends of the elastic ligature band 43 penetrate through the two mounting side ears 41 respectively. Utilize two installation side ears 41 can be convenient for carry on spacingly to the both ends of elasticity ligature area 43, can also carry out fixed installation through casing fixed orifices 42 when elasticity ligature area 43 can't use simultaneously.

In the air humidifying and dedusting system disclosed by the utility model, the master controller and the slave controller both adopt the existing single chip microcomputer controller module, such as STM32 single chip microcomputer module, for realizing coordination control; the display screen 47 is an existing display screen and is used for displaying a real-time humidity value; the master wireless communication module and the slave wireless communication module both adopt the existing wireless communication module, such as a Zigbee module or a Bluetooth module; the humidity sensor 45 may be an existing humidity sensor.

When the air humidification and dust removal system is used, the humidity set value is adjusted by the humidity increasing button 50 and the humidity decreasing button 51, and the display screen 47 displays the humidity set value; after the start button 48 is pressed, the main controller controls the driving motor 7 to work through the motor driving circuit; after the stop button 49 is pressed, the driving motor 7 is controlled to stop working through the motor driving circuit; humidity sensor 45 acquires the humidity of collection point department in real time to send the measured humidity value that acquires to main control unit through following wireless communication module and main wireless communication module by following the controller, main control unit control display screen 47 carries out measured humidity value and shows, and according to the big or small relation feedback control driving motor 7's of set value and measured humidity value rotational speed.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. The utility model provides an air humidifying dust pelletizing system which characterized in that: comprises a humidifying device, a control box (46) and a humidity acquisition node; the humidifying device comprises a rectangular shell (1) of a humidifying device, a circulating fan (25), an air inlet pipeline (22), a spraying humidifying mechanism, an air filtering mechanism and an outlet filtering mechanism; a main controller, a main wireless communication module and a motor driving circuit are arranged in the control box (46); a display screen (47), a humidity increasing button (50), a humidity decreasing button (51), a starting button (48) and a stopping button (49) are arranged on the side surface of the control box (46); the humidity acquisition node comprises a node shell (40), a humidity sensor (45) and an elastic binding belt (43); a slave controller and a slave wireless communication module are arranged in the node shell (40);

a partition plate (27) is vertically arranged in the cuboid shell (1) and is used for dividing the interior of the cuboid shell (1) into a left cavity and a right cavity; a supporting foot (3) is arranged at the bottom of the cuboid shell (1); the circulating fan (25) is fixedly arranged on the bottom of the right cavity; the lower end of the air inlet pipeline (22) is in butt joint with an air inlet of the circulating fan (25); an air inlet butt joint pipe (2) which is butted with the upper end of an air inlet pipeline (22) is arranged on the top of the cuboid shell (1); a ventilation window is arranged on the partition plate (27), and an air outlet conical cover (26) butted with the ventilation window is installed on an air outlet of the circulating fan (25) in a butt joint manner; a driving motor (7) of the circulating fan (25) is fixedly arranged on the outer side surface of the cuboid shell (1) through a motor support;

the spraying and humidifying mechanism comprises two branch spraying mechanisms which are fixedly arranged on the inner walls of the front side and the rear side of the left cavity respectively, and each branch spraying mechanism comprises a vertical communicating pipe (28), a water drop collecting tank (36), at least one transverse communicating pipe (29) and spraying heads (30) which are arranged on the transverse communicating pipes (29) at intervals; a longitudinal communication pipe (39) is communicated between the vertical communication pipes (28) of the two branch spraying mechanisms, the front end part of the longitudinal communication pipe (39) penetrates through the front side wall of the cuboid shell (1), and a butt joint mounting flange (8) is arranged on the penetrating end part; the transverse communicating pipe (29) is transversely and fixedly arranged on the inner wall of the corresponding side of the left cavity; the water drop collecting tank (36) is fixedly arranged on the inner bottom of the left cavity and is used for collecting water drops sprayed by each spray header (30); a drain pipe (6) extending out of the cuboid shell (1) is communicated with the bottom of the water drop collecting tank (36);

an air outlet window (33) is arranged on the left side end face of the cuboid shell (1), and an outlet filtering mechanism is fixedly arranged at the air outlet window and used for filtering fog drops in air flow; the air filtering mechanism is arranged on the air inlet pipeline (22) and is used for filtering the entering air flow;

the control box (46) is fixedly arranged on the cuboid shell (1); the main controller is respectively and electrically connected with the main wireless communication module, the motor driving circuit, the display screen (47), the humidity increasing key (50), the humidity decreasing key (51), the starting key (48) and the stopping key (49); the motor driving circuit is electrically connected with the driving motor (7); the humidity sensor (45) is fixedly arranged at the top of the node shell (40), and the slave controller is electrically connected with the humidity sensor (45) and the slave wireless communication module respectively; the elastic binding belt (43) is provided with positioning holes at intervals, and two ends of the elastic binding belt (43) penetrate through the positioning holes at corresponding positions through two positioning bolts (44) and are respectively fixed on the left side surface and the right side surface of the node shell (40); the master wireless communication module wirelessly communicates with the slave wireless communication module.

2. The air humidification dust removal system of claim 1, wherein: the air filtering mechanism comprises a rectangular mounting plate (9), a filtering plugboard (10) and an air filter screen (17); the rectangular mounting plate (9) is installed on the air inlet pipeline (22) in a cutting mode, and a ventilation rectangular hole convenient for ventilation of the air inlet pipeline (22) is formed in the middle of the rectangular mounting plate (9); the right side edge of the rectangular mounting plate (9) extends out of the cuboid shell (1), a rectangular insertion hole (23) is formed in the right side edge of the rectangular mounting plate (9), and the rectangular insertion hole (23) extends to the ventilation rectangular hole; the filtering plugboard (10) is inserted in the rectangular jack (23), and a filtering window (16) is arranged on the filtering plugboard (10) and at the position corresponding to the ventilating rectangular hole; the air filter screen (17) is fixedly arranged on the filter window (16).

3. The air humidification dust removal system of claim 2, wherein: a push-pull handle (11) is arranged on the right side edge of the filtering plugboard (10); a positioning hole (13) is arranged on the filtering inserting plate (10) and close to the push-pull handle (11); a positioning bolt (12) is vertically inserted on the rectangular mounting plate (9), and the end part of the positioning bolt (12) is inserted into the positioning hole (13).

4. The air humidification dust removal system of claim 2, wherein: the front side edge, the rear side edge and the left side edge of the filtering plugboard (10) are respectively provided with an elastic sealing strip (15), and the lower side surface of the right side edge of the filtering plugboard (10) is respectively provided with an inserting opening sealing strip (18).

5. The air humidification dust removal system of claim 1, wherein: a support short column (37) is arranged in the water drop collecting tank (36), and a water drop filter screen (38) is horizontally arranged on the support short column (37) and is paved in the water drop collecting tank (36).

6. The air humidification dust removal system of claim 1, wherein: the outlet filtering mechanism comprises a rectangular mounting frame (4), a filtering steel wire mesh plate (31) and a strip-shaped water tank (35); the rectangular mounting frame (4) is fixedly mounted on the left end face of the cuboid shell (1) and is butted with the air outlet window (33); the strip-shaped water tank (35) is longitudinally arranged at the lower side in the rectangular mounting frame (4); the inner walls of the front side and the rear side of the rectangular mounting frame (4) are both vertically provided with a limiting barrier strip (32); the filtering steel wire mesh plate (31) is vertically arranged in the rectangular mounting frame (4), the front side and the rear side of the right side of the filtering steel wire mesh plate (31) are tightly attached to the limiting barrier strips (32), and the front side and the rear side of the left side are blocked and limited by limiting bolts (34) arranged in the rectangular mounting frame (4); the lower side edge of the filtering steel wire mesh plate (31) is inserted into the strip-shaped water tank (35); a side water pipe (5) which penetrates and extends out of the rectangular mounting frame (4) is arranged on the left side of the strip-shaped water tank (35).

7. The air humidification dust removal system of claim 1, wherein: the left side and the right side of the bottom of the node shell (40) are respectively provided with an installation side lug (41), and the installation side lugs (41) are provided with shell fixing holes (42); two ends of the elastic bandage (43) respectively penetrate through the two mounting side ears (41).

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