CN112600076B - Lightning arrester with rain collecting and drying functions - Google Patents

Abstract

The invention discloses a lightning arrester with a rain collecting and drying function, which comprises a main body, wherein a telescopic cavity with the upper side communicated with the outside through a first through hole is arranged in the main body, a telescopic assembly is arranged in the telescopic cavity and comprises a motor fixedly installed on the lower end wall of the telescopic cavity, the upper side of the motor is in power connection with a telescopic screw rod, the front end wall and the rear end wall of the telescopic cavity are provided with a first hollow sliding block in sliding fit with the telescopic screw rod through threads, a short needle is electrified to start the motor during first lightning strike, so that a long needle is driven to extend upwards to the device, the long needle is lifted to the uppermost side and is retracted in the device, a front cleaning brush and a rear cleaning brush clean lightning rod are arranged, the short needle rotates ninety degrees when being contracted to the lowermost side, the rain collecting assembly rotates ninety degrees to open rain collecting, and the telescopic cavity is dried.

Description

A lightning protection device with rain collecting and drying function

technical field

The invention relates to the technical field of lightning protection devices, in particular to a lightning protection device with a rain collecting and drying function.

Background technique

Lightning rods are devices used to protect buildings, tall trees, etc. from lightning strikes. High-rise buildings usually need to install longer lightning rods, but long lightning rods can easily collide with birds or drones when they are extended for a long time, which is dangerous to birds and easily causes certain losses. In addition, the general thunderstorm days occur in summer. When not in use, the lightning rod is extended to a higher place for a long time, which is easy to cause damage to the main body of the lightning rod or accumulation of dust.

SUMMARY OF THE INVENTION

In view of the deficiencies of the above-mentioned technologies, the present invention proposes a lightning protection device with a rain-collecting and drying function, which can overcome the above-mentioned deficiencies.

A lightning arrester with rain collecting and drying function of the present invention includes a main body, and a telescopic cavity whose upper side communicates with the outside through a first through hole is arranged in the main body, and a telescopic component is arranged in the telescopic cavity, and the telescopic cavity is arranged in the telescopic cavity. The assembly includes a motor fixedly installed with the lower end wall of the telescopic cavity, the upper side of the motor is powered with a telescopic screw, the front and rear walls of the telescopic cavity are slidably provided with a first hollow sliding block that is threadedly matched with the telescopic screw, The left end wall of the telescopic cavity is fixedly installed with a first rack, the left side of the first hollow sliding block is provided with a first rotating groove that communicates left and right, and the rear end wall of the first rotating groove is rotatably installed with a first rotating shaft. A first rotating gear meshing with the first rack is fixedly installed on the first rotating shaft, a second hollow sliding block is slidably arranged in the first hollow sliding block, and the left end wall of the second hollow sliding block is A second rack that meshes with the first rotating gear is fixedly installed, a third rack is fixedly installed on the left end wall of the first hollow sliding block, and the left side of the second hollow sliding block is connected to the left and right. The second rotation slot of the second rotation slot, the rear end wall of the second rotation slot is rotatably installed with a second rotation shaft, and a second rotation gear meshing with the third rack is fixedly installed on the second rotation shaft. A long-needle telescopic block is slidably installed in the two hollow sliding blocks. The left end wall of the long-needle telescopic block is fixedly installed with a fourth rack that meshes with the second rotating gear. The long-needle telescopic block is rotatably installed with an upward extension The long needle, the lower side of the long needle telescopic block is provided with a first steering assembly, the left side of the telescopic cavity is connected with a rain collecting cavity whose upper side communicates with the outside through a second through hole, and the rain collecting cavity is provided with There is a drying assembly, a short needle cavity is communicated with the right side of the telescopic cavity, and a short needle assembly is arranged in the short needle cavity.

Preferably, the drying assembly includes an inversion rotating shaft rotatably mounted on the front end wall of the rain collecting chamber, a fifth rack is fixedly installed on the left side of the first hollow sliding block, and an energy source is fixedly installed on the inversion rotating shaft A drying gear meshing with the fifth rack, a drying connecting rod is fixedly installed on the turning shaft, a support rod is fixedly installed on the upper side of the drying connecting rod, and a fan blade is rotatably installed on the left side of the drying connecting rod A rotating shaft, a driving fan blade is fixedly installed on the rotating shaft of the fan blade, and a first transmission shaft that is centered on the same circle as the turning shaft is rotatably installed on the rear wall of the rain-collecting cavity, and the first transmission shaft is connected to the The rotating shafts of the fan blades are connected by a set of pulleys, and the lower side of the rain collecting chamber is connected with a water collecting pipe.

Preferably, the drying assembly further comprises a second transmission shaft rotatably mounted on the left end wall of the rain collecting chamber, the second transmission shaft and the first transmission shaft are connected by a set of bevel gear pairs, and the collection The lower side of the rain cavity is connected with a drying cavity whose right side communicates with the telescopic cavity through the ventilation opening. A dryer is fixedly installed on the left end wall of the drying cavity, and a drying rotating shaft is rotatably installed on the left end wall of the drying cavity. A drying fan blade is fixedly installed on the drying rotating shaft, and the second transmission shaft and the drying rotating shaft are connected by a set of pulleys.

Preferably, the short needle assembly includes a short needle rotating shaft rotatably mounted on the rear end wall of the short needle cavity, a sixth rack is fixedly installed on the right side of the first hollow sliding block, and the short needle rotating shaft is mounted on the right side of the first hollow sliding block. A short needle gear that can be engaged with the sixth rack is fixedly installed, the upper side of the short needle cavity is communicated with the outside world through a third through hole, and a short needle lifting block is slidably arranged on the right end wall of the short needle cavity. The left side of the short needle lifting block is fixedly installed with a seventh rack that meshes with the short needle gear, the short needle lifting block is rotatably installed with an upwardly extending short needle, and the lower side of the short needle lifting block is provided with a second rack. Steering components.

Preferably, the first steering assembly and the second steering assembly include steering grooves located on the lower sides of the long needle telescopic block and the short needle lifting block, respectively, and a limit sliding groove is provided in the steering groove, so The lower side of the long needle and the short needle is provided with a telescopic groove, and a telescopic rod connected to the upper end wall of the telescopic groove through a telescopic spring is slidably arranged in the telescopic groove, and a telescopic rod is fixedly installed on the telescopic rod and is connected to the limiter. A limit block that is slidably matched with the sliding groove, and a pressure block is fixedly installed on the lower side of the telescopic rod.

Preferably, a first cover plate rotating shaft connected to the second through hole through a torsion spring is rotatably mounted on the right rear end wall of the second through hole, and a first cover plate rotating shaft is fixedly installed on the first cover plate rotating shaft. The first cover plate matched with the second through hole, the left rear wall of the first through hole is rotatably installed with a second cover plate rotating shaft connected with the first through hole through a torsion spring, and the first through hole is connected with the torsion spring. The rear wall on the right side of the hole is rotatably installed with a third cover plate rotating shaft connected with the first through hole through a torsion spring, and the second cover plate rotating shaft and the third cover plate rotating shaft are respectively fixed and installed with The second cover plate and the third cover plate matched with the first through hole, the front and rear end walls of the telescopic cavity and the front and rear end walls of the short needle cavity are respectively fixed and installed with the long needle and the long needle. Cleaning brush with short needle contact.

The beneficial effects are as follows: the device has a simple structure and is easy to operate, and the short needle is energized to start the motor during the first thunderstorm, so as to drive the long needle to extend upwards from the device, and at the same time clean the surface of the long needle. When the long needle rises to the uppermost side, the short needle Retract the device, clean the lightning rod with front and rear cleaning brushes, turn the short needle 90 degrees when it shrinks to the lowest side, turn the rain collecting assembly 90 degrees to open the rain collection, and dry the telescopic cavity at the same time to prevent the lightning rod from rusting due to moisture in the telescopic cavity If the lightning rod is damaged, the long needle will return to the telescopic cavity after the lightning strike is stopped. When the long needle slides to the lowest side, it will rotate 90 degrees, which is convenient for cleaning each side of the lightning rod. The drone collided with a long lightning rod.

Description of drawings

In order to illustrate the embodiments of the invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only For some embodiments of the invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

2 is a schematic structural diagram of A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of B-B in FIG. 1 according to an embodiment of the present invention;

4 is an enlarged schematic view of the structure at C in FIG. 1 according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of the structure at D in FIG. 1 according to an embodiment of the present invention.

Detailed ways

All features disclosed in this specification, or all disclosed steps in a method or process, may be combined in any way except mutually exclusive features and/or steps.

The present invention will be described in detail below in conjunction with Figures 1-5. For the convenience of description, the orientations mentioned below are now defined as follows: the up-down, left-right, front-rear directions mentioned below are consistent with the up-down, left-right, front-rear directions of the projection relationship of Figure 1 itself.

A lightning arrester with rain collecting and drying function of the device of the present invention includes a main body 10, and the main body 10 is provided with a telescopic cavity 14 whose upper side communicates with the outside through a first through hole 65, and the telescopic cavity 14 is provided with a telescopic cavity 14. A telescopic assembly for controlling the extension and retraction of the lightning rod, the telescopic assembly includes a motor 21 fixedly installed with the lower end wall of the telescopic cavity 14, the upper side of the motor 21 is powered with a telescopic screw 22, and the front and rear walls of the telescopic cavity 14 are slidably provided with The first hollow sliding block 15 is threadedly matched with the telescopic screw 22, the left end wall of the telescopic cavity 14 is fixedly installed with a first rack 13, and the left side of the first hollow sliding block 15 is provided with a left and right connected first A rotation slot 51, the rear wall of the first rotation slot 51 is rotatably mounted with a first rotation shaft 24, and the first rotation shaft 24 is fixedly mounted with a first rotation gear 11 meshing with the first rack 13, The first hollow sliding block 15 is slidably provided with a second hollow sliding block 18 , and the left end wall of the second hollow sliding block 18 is fixedly installed with a second rack 17 engaged with the first rotating gear 11 . The inner left end wall of the first hollow sliding block 15 is fixedly installed with the third rack 16 , the left side of the second hollow sliding block 18 is provided with a second rotating groove 53 connected to the left and right, and the rear end of the second rotating groove 53 A second rotating shaft 26 is rotatably installed on the wall, and a second rotating gear 25 meshing with the third rack 16 is fixedly installed on the second rotating shaft 26 . The second hollow sliding block 18 is slidably provided with a long Needle telescopic block 23, the left end wall of the long needle telescopic block 23 is fixedly installed with a fourth rack 19 meshing with the second rotating gear 25, and a long needle 28 extending upward is rotatably installed in the long needle telescopic block 23 The lower side of the long needle telescopic block 23 is provided with the first steering assembly 20, the left side of the telescopic cavity 14 is connected with a rain collecting cavity 42 whose upper side communicates with the outside through the second through hole 41, the rain collecting cavity 42 is provided with a drying component for drying the telescopic cavity 14, the right side of the telescopic cavity 14 is communicated with a short needle cavity 35, the short needle cavity 35 is provided with a short needle assembly, and the motor 21 rotates forward When the telescopic screw 22 is rotated forward, the first hollow sliding block 15 is driven to slide upward, and the first rotating gear 11 meshes with the first rack 13 to drive the first rotating gear 11 to rotate. The first rotating gear 11 meshes with the second rack 17, thereby driving the second hollow sliding block 18 to slide upward, and the second rotating gear 25 meshes with the third rack 16 to drive the second hollow sliding block 18. The second rotating gear 25 rotates, and at the same time, the second rotating gear 25 meshes with the fourth rack 19, thereby driving the long needle telescopic block 23 and the long needle 28 to slide upward, and the long needle telescopic block 23 moves upward. The sliding distance is twice the upward sliding distance of the first hollow sliding block 15 .

Beneficially, the drying assembly includes a turning shaft 36 rotatably mounted on the front end wall of the rain collecting chamber 42 , a fifth rack 52 is fixedly installed on the left side of the first hollow sliding block 15 , and the turning shaft 36 A drying gear 37 that can be engaged with the fifth rack 52 is fixedly installed on it, a drying connecting rod 38 is fixedly installed on the turning shaft 36, and a support rod 39 is fixedly installed on the upper side of the drying connecting rod 38, so A fan blade rotating shaft 44 is rotatably installed on the left side of the drying connecting rod 38, a driving fan blade 43 is fixedly installed on the fan blade rotating shaft 44, and the rear end wall of the rain collecting chamber 42 is rotatably installed with the turning shaft 36 The first transmission shaft 55 at the same center of the circle, the first transmission shaft 55 and the fan blade rotating shaft 44 are connected by a set of pulleys, the lower side of the rain collecting chamber 42 is connected with a water collecting pipe 12, and the When the first hollow sliding block 15 slides upward, the fifth rack 52 can mesh with the drying gear 37, thereby driving the drying gear 37 to rotate 90 degrees, thereby driving the turning shaft 36 to rotate 90 degrees, Therefore, the drying connecting rod 38 is driven to rotate 90 degrees around the turning shaft 36, the driving fan blade 43 is located outside the device, and the wind drives the driving fan blade 43 to rotate, thereby driving the fan blade rotating shaft 44 to rotate , thereby driving the first transmission shaft 55 to rotate.

Beneficially, the drying assembly further includes a second transmission shaft 54 rotatably mounted on the left end wall of the rain collecting chamber 42 , and the second transmission shaft 54 and the first transmission shaft 55 are connected through a set of bevel gear pairs. The lower side of the rain-collecting cavity 42 is connected with a drying cavity 45 whose right side communicates with the telescopic cavity 14 through the ventilation opening 49. A dryer 46 is fixedly installed on the left end wall of the drying cavity 45. The drying cavity 45 A drying rotating shaft 47 is rotatably installed on the left end wall, and a drying fan blade 48 is fixedly installed on the drying rotating shaft 47 . When a transmission shaft 55 rotates, it drives the second transmission shaft 54 to rotate, thereby driving the drying rotating shaft 47 to rotate, thereby driving the drying fan blades 48 to rotate, so as to cooperate with the dryer 46 to rotate the telescopic cavity 14 to dry.

Beneficially, the short needle assembly includes a short needle rotating shaft 29 rotatably mounted on the rear end wall of the short needle cavity 35 , a sixth rack 27 is fixedly installed on the right side of the first hollow sliding block 15 , and the short needle A short needle gear 34 that can engage with the sixth rack 27 is fixedly installed on the needle rotating shaft 29 , the upper side of the short needle cavity 35 communicates with the outside through a third through hole 33 , and the right end wall of the short needle cavity 35 is connected to the outside world. A short-needle lifting block 31 is slidably provided. The left side of the short-needle lifting block 31 is fixedly installed with a seventh rack 30 that meshes with the short-pin gear 34. The short-needle lifting block 31 is rotatably installed with an upwardly extending rack. For the short needle 32, a second steering assembly 50 is provided on the lower side of the short needle lifting block 31. When the first hollow sliding block 15 slides upward, the sixth rack 27 meshes with the short needle gear 34, thereby driving The short needle gear 34 rotates, and at the same time, the short needle gear 34 meshes with the seventh rack 30 , thereby driving the short needle lifting block 31 and the short needle 32 to slide down to the short needle cavity 35 Inside.

Beneficially, the first turning assembly 20 and the second turning assembly 50 include turning grooves 62 located on the lower sides of the long needle telescopic block 23 and the short needle lifting block 31 respectively, and the turning grooves 62 There is a limited sliding slot 61, a telescopic slot 56 is provided on the lower side of the long needle 28 and the short needle 32, and a telescopic rod connected to the upper end wall of the telescopic slot 56 through a telescopic spring 57 is slidably arranged in the telescopic slot 56 60, the telescopic rod 60 is fixedly installed with a limit block 59 that slides with the limit sliding groove 61, the lower side of the telescopic rod 60 is fixedly installed with a pressure block 58, the long needle telescopic block 23, all the When the short needle lifting block 31 slides down to the lowermost side, the pressing block 58 abuts against the lower end wall of the telescopic cavity 14 and the short needle cavity 35 , and the telescopic rod 60 slides into the telescopic groove 56 . The telescopic spring 57 is compressed, and the limiting block 59 slides in the limiting sliding slot 61 , thereby driving the telescopic rod 60 and the short needle 32 to rotate ninety degrees.

Beneficially, the right rear end wall of the second through hole 41 is rotatably mounted with a first cover plate rotating shaft 63 connected with the second through hole 41 through a torsion spring, and the first cover plate rotating shaft 63 is fixed on the A first cover plate 40 is installed to cooperate with the second through hole 41 , and a second cover plate connected to the first through hole 65 through a torsion spring is rotatably installed on the left rear wall of the first through hole 65 Rotating shaft 64, the right rear wall of the first through hole 65 is rotatably mounted with a third cover plate rotating shaft 66 connected with the first through hole 65 through a torsion spring, the second cover plate rotating shaft 64, A second cover plate 68 and a third cover plate 67 are respectively fixed and installed on the third cover plate rotating shaft 66 , which are matched with the first through hole 65 . The front and rear end walls of the telescopic cavity 14 and the short needle The front and rear end walls of the cavity 35 are respectively fixed with cleaning brushes 69 that can contact the long needles 28 and the short needles 32 . The cleaning brushes 69 clean the surfaces of the long needles 28 and the short needles 32 .

In the initial state, the first hollow sliding block 15, the second hollow sliding block 18, the long needle telescopic block 23, and the long needle 28 are located at the lowermost side, the drying connecting rod 38 is in a horizontal state, and the short needle 32 and the short needle lifting block 31 are located at the bottom. On the uppermost side, the first cover plate 40 , the second cover plate 68 and the third cover plate 67 are in a horizontal state, the telescopic spring 57 in the short needle lifting block 31 is in a normal tension state, and the telescopic spring 57 in the long needle telescopic block 23 is in a compressed state state.

When lightning strikes for the first time, the short needle 32 is energized and the motor 21 is started, thereby driving the telescopic screw 22 to rotate, thereby driving the first hollow sliding block 15 to slide upward, and the first rotating gear 11 meshes with the first rack 13 to drive the first rotating gear 11 rotates, and at the same time the first rotating gear 11 meshes with the second rack 17, thereby driving the second hollow sliding block 18 to slide upward, the second rotating gear 25 meshing with the third rack 16 drives the second rotating gear 25 to rotate, and the second rotating gear 25 rotates. The second rotating gear 25 meshes with the fourth rack 19, thereby driving the long needle telescopic block 23 and the long needle 28 to slide upward, the second cover plate 68 rotates and opens around the second cover plate rotation axis 64, and the third cover plate 67 rotates around the third cover plate 67. The cover plate rotating shaft 66 is rotated to open, and the upward sliding distance of the long needle telescopic block 23 is twice the upward sliding distance of the first hollow sliding block 15; at the same time, when the first hollow sliding block 15 slides upward, the fifth rack 52 can interact with the dryer. The gear 37 is engaged, thereby driving the drying gear 37 to rotate 90 degrees, thereby driving the turning shaft 36 to turn 90 degrees, thereby driving the drying connecting rod 38 to turn 90 degrees around the turning shaft 36, and the first cover plate 40 rotates around the first cover The plate rotating shaft 63 is rotated to open, the support rod 39 is against the first cover plate 40, the driving fan blade 43 is located outside the device, and the wind drives the driving fan blade 43 to rotate, thereby driving the fan blade rotating shaft 44 to rotate, thereby driving the first transmission shaft 55 rotate, thereby driving the second transmission shaft 54 to rotate, thereby driving the drying rotating shaft 47 to rotate, thereby driving the drying fan blades 48 to rotate, thereby cooperating with the dryer 46 to dry the expansion chamber 14, and the water collecting pipe 12 collects rainwater; When the hollow sliding block 15 slides up, the sixth rack 27 meshes with the short needle gear 34, thereby driving the short needle gear 34 to rotate, and at the same time, the short needle gear 34 meshes with the seventh rack 30, thereby driving the short needle lifting block 31, the short needle 32 slide down into the short needle cavity 35, when the long needle telescopic block 23 and the short needle lifting block 31 slide down to the lowermost side, the pressing block 58 abuts against the lower end wall of the telescopic cavity 14 and the short needle cavity 35, and the telescopic rod 60 moves toward the lower end wall. The telescopic groove 56 slides, the telescopic spring 57 is compressed, and the limit block 59 slides in the limit sliding groove 61, thereby driving the telescopic rod 60 and the short needle 32 to rotate ninety degrees, and the cleaning brush 69 cleans the long needle 28 and the short needle 32 Surface; after stopping the thunder, start the motor 21 to reverse, thereby driving the telescopic screw 22 to reverse, thereby driving the first hollow sliding block 15, the second hollow sliding block 18, the long needle telescopic block 23, and the long needle 28 to slide down and return to the telescopic In the cavity 14, the drying connecting rod 38 returns to the level, the short needle lifting block 31 and the short needle 32 slide upward, and the first cover 40, the second cover 68 and the third cover 67 return to the level.

The beneficial effects are as follows: the device has a simple structure and is easy to operate, and the short needle is energized to start the motor during the first thunderstorm, so as to drive the long needle to extend upwards from the device, and at the same time clean the surface of the long needle. When the long needle rises to the uppermost side, the short needle Retract the device, clean the lightning rod with front and rear cleaning brushes, turn the short needle 90 degrees when it shrinks to the lowest side, turn the rain collecting assembly 90 degrees to open the rain collection, and dry the telescopic cavity at the same time to prevent the lightning rod from rusting due to moisture in the telescopic cavity If the lightning rod is damaged, the long needle will return to the telescopic cavity after the lightning strike is stopped. When the long needle slides to the lowest side, it will rotate 90 degrees, which is convenient for cleaning each side of the lightning rod. The drone collided with a long lightning rod.

The above are only specific embodiments of the invention, but the protection scope of the invention is not limited to this, and any changes or substitutions that are not conceived of without creative work should be included within the protection scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims (1)

1. A lightning arrester with rain collecting and drying function, comprising a main body, characterized in that: the main body is provided with a telescopic cavity whose upper side communicates with the outside through a first through hole, and a telescopic assembly is provided in the telescopic cavity, The telescopic assembly includes a motor fixedly installed with the lower end wall of the telescopic cavity, a telescopic screw is connected to the upper side of the motor, and the front and rear walls of the telescopic cavity are slidably provided with a first hollow that is threadedly matched with the telescopic screw. The sliding block, the left end wall of the telescopic cavity is fixedly installed with a first rack, the left side of the first hollow sliding block is provided with a first rotating groove that communicates with left and right, and the rear end wall of the first rotating groove is rotatably installed with a first rack. A rotating shaft, a first rotating gear meshing with the first rack is fixedly installed on the first rotating shaft, a second hollow sliding block is slidably arranged in the first hollow sliding block, and the second hollow sliding block The left end wall of the block is fixedly installed with a second rack that meshes with the first rotating gear, the left end wall of the first hollow sliding block is fixedly installed with a third rack, and the left side of the second hollow sliding block is provided with a second rack. There is a second rotating groove that communicates with left and right, the rear end wall of the second rotating groove is rotatably installed with a second rotating shaft, and a second rotating gear that meshes with the third rack is fixedly installed on the second rotating shaft. A long-needle telescopic block is slidably arranged in the second hollow sliding block, a fourth rack is fixedly installed on the left end wall of the long-needle telescopic block and is engaged with the second rotating gear, and the long-needle telescopic block is rotatably installed in the There is a long needle extending upward, a first steering assembly is arranged on the lower side of the long needle telescopic block, the left side of the telescopic cavity is connected with a rain collecting cavity whose upper side communicates with the outside through a second through hole, and the rain collecting cavity is connected to the outside through a second through hole. A drying assembly is arranged in the cavity, a short needle cavity is communicated on the right side of the telescopic cavity, and a short needle assembly is arranged in the short needle cavity; shaft, a fifth rack is fixedly installed on the left side of the first hollow sliding block, a drying gear that can be engaged with the fifth rack is fixedly installed on the turning shaft, and a drying gear is fixedly installed on the turning shaft A drying connecting rod, a support rod is fixedly installed on the upper side of the drying connecting rod, a fan blade rotating shaft is rotatably installed on the left side of the drying connecting rod, a driving fan blade is fixedly installed on the fan blade rotating shaft, and the rain collector The rear end wall of the cavity is rotatably installed with a first transmission shaft that is at the same center as the turning shaft. A water collecting pipe is provided; the drying assembly also includes a second transmission shaft rotatably mounted on the left end wall of the rain collecting chamber, the second transmission shaft and the first transmission shaft are connected by a set of bevel gear pairs, so The lower side of the rain-collecting chamber is connected with a drying chamber whose right side communicates with the telescopic chamber through the ventilation opening, the left end wall of the drying chamber is fixedly installed with a dryer, and the left end wall of the drying chamber is rotatably installed with a drying rotating shaft, A drying fan blade is fixedly installed on the drying rotating shaft, and the second transmission shaft and the drying rotating shaft are connected by a set of pulleys; The short needle rotating shaft, the sixth rack is fixedly installed on the right side of the first hollow sliding block, and the short needle A short-needle gear that can engage with the sixth rack is fixedly installed on the moving shaft, the upper side of the short-needle cavity communicates with the outside world through a third through hole, and the right end wall of the short-needle cavity is slidably provided with a short-needle lifting block , the left side of the short needle lifting block is fixedly installed with a seventh rack that meshes with the short needle gear, the short needle lifting block is rotatably installed with an upwardly extending short needle, and the lower side of the short needle lifting block is provided with There is a second steering assembly; the first steering assembly and the second steering assembly include steering grooves located on the lower sides of the long needle telescopic block and the short needle lifting block, respectively, and the steering groove is provided with a limit sliding The lower side of the long needle and the short needle is provided with a telescopic groove, and a telescopic rod connected to the upper end wall of the telescopic groove through a telescopic spring is slidably arranged in the telescopic groove, and a telescopic rod is fixedly installed on the telescopic rod. The limit block is slidably matched with the limit sliding groove, a pressure block is fixedly installed on the lower side of the telescopic rod; The first cover plate rotating shaft, the first cover plate rotating shaft is fixedly installed with the first cover plate that cooperates with the second through hole, and the left rear wall of the first through hole is rotatably installed with the second through hole. The first through hole is connected with the second cover plate rotating shaft by the torsion spring, and the right rear wall of the first through hole is rotatably installed with the third cover plate rotating shaft connected with the first through hole through the torsion spring, The second cover plate rotating shaft and the third cover plate rotating shaft are respectively fixedly installed with a second cover plate and a third cover plate matched with the first through hole, and the front and rear end walls of the telescopic cavity, The front and rear end walls of the short needle cavity are respectively fixed and installed with cleaning brushes that can be in contact with the long needle and the short needle.

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