Automatic windproof pull rod

Abstract

The application belongs to the technical field of equipment windproof, and is especially an automatic windproof pull rod, which comprises a windproof pull rod mechanism, a winch and a telescopic rod limiting mechanism, the windproof pull rod mechanism comprises a windproof fixed rod assembly and a windproof telescopic rod assembly, the telescopic rod limiting mechanism comprises a positioning induction assembly, a limiting power assembly, a limiting assembly, a fixing assembly and a separation control assembly, through the cooperation of the windproof pull rod mechanism, the winch and the telescopic rod limiting mechanism, the crane or other equipment can be stably fixed on the ground when a typhoon attacks, so that the equipment is prevented from being blown down by the typhoon and causing serious economic losses; meanwhile, compared with the traditional manual fixing equipment mode, the fixing efficiency is higher, the equipment can be fixed in a short time, and the speed of the equipment being blown down by the typhoon is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of equipment windproof, and particularly relates to an automatic windproof pull rod. BACKGROUND

[0002] Typhoons attack coastal areas of China all the year round, causing great loss of human life and property, and also being the "devil" of coastal ports and crane equipment, especially in the southern region. With the change of global climate, the intensity and frequency of typhoons are becoming more and more intense every year, causing great trouble to port typhoon prevention work. The traditional windproof mode of port machinery has been difficult to meet the needs of windproof and typhoon prevention of super typhoon.

[0003] The traditional windproof pull rod is mainly installed by manpower, which generally needs four people to work simultaneously and takes 20-25 minutes to complete, and the efficiency is low. When a typhoon attacks, the manual fixing mode may not keep up with the speed of the typhoon blowing down the equipment, and there is a certain danger in manual fixing. SUMMARY

[0004] To solve the problems in the background art, the present application provides an automatic windproof pull rod, which has the characteristics of stably fixing the crane or other equipment on the ground when a typhoon attacks, preventing the typhoon from blowing down the equipment and causing serious economic loss, and having higher fixing efficiency and being capable of fixing the equipment in a short time.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an automatic windproof pull rod, comprising a windproof pull rod mechanism, a winch and a telescopic rod limiting mechanism, the windproof pull rod mechanism comprising a windproof fixing rod assembly and a windproof telescopic rod assembly, the telescopic rod limiting mechanism comprising a positioning sensing assembly, a limiting power assembly, a limiting assembly, a fixing assembly and a separation control assembly;

[0006] The bottom of the windproof fixing rod assembly is slidably provided with the windproof telescopic rod assembly, the winch is installed at a fixed position relative to the fixed object and can lift the windproof telescopic rod assembly, the positioning sensing assembly is installed at a corresponding position directly below the windproof telescopic rod assembly, the limiting power assembly is installed on a side corresponding to the positioning sensing assembly, the limiting assembly is slidably arranged on the inner side of the limiting power assembly, the fixing assembly is installed on the other side corresponding to the positioning sensing assembly, and the separation control assembly is arranged on the inner side of the fixing assembly.

[0007] As a preferred automatic windproof pull rod of the present application, the windproof fixing rod assembly comprises a windproof fixing rod body and a sliding support portion, the top end of the windproof fixing rod body is rotatably installed on one side of the fixed object, and the bottom of the windproof fixing rod body is provided with the sliding support portion.

[0008] As a kind of automatic windproof drawbar of the application preferably, the windproof telescopic rod assembly includes windproof telescopic rod body, plug-in hole, limiting sliding rod, first steel rope ear, embedded part, double ear plate, pin shaft, steel cable, second steel rope ear and pendulum, the bottom of the windproof telescopic rod body is provided with the plug-in hole, the top end inside of the windproof telescopic rod body is equipped with the limiting sliding rod, the limiting sliding rod can slide in the sliding support part inside, the top of the windproof telescopic rod body Two sides symmetrically are provided with the first steel rope ear, the first steel rope ear can be fixedly connected with the free end of the steel rope of winch, the ground below the windproof telescopic rod body is fixed with the embedded part capable of being matched with the bottom bifurcation of the windproof telescopic rod body, the one end inside of the windproof telescopic rod body is rotatably connected with the double ear plate through the pin shaft, the double ear plate is connected with the second steel rope ear through the steel cable and suspends the pendulum.

[0009] As a kind of automatic windproof drawbar of the application preferably, the positioning induction assembly includes induction support frame, pressure sensor, first permanent magnet and second permanent magnet, two the induction support frame is fixed on the bottom of the embedded part Two sides, the top end inside of the induction support frame is fixedly connected with the pressure sensor, the top of the pressure sensor is fixedly connected with the first permanent magnet, the second permanent magnet is embedded in the bottom inside of the windproof telescopic rod body.

[0010] As a kind of automatic windproof drawbar of the application preferably, the limiting power assembly includes limiting power shell, air pump, gas tank, breather pipe and normally closed electromagnetic air valve, the bottom of the limiting power shell is fixed on the ground and is located in the side corresponding to the embedded part, the air pump is fixed on the ground and is communicated with the gas tank fixed in the bottom inside of the limiting power shell through pipeline, one end of the gas tank is fixedly communicated with the breather pipe, one end outside of the breather pipe is fixedly communicated with the normally closed electromagnetic air valve.

[0011] As a kind of automatic windproof drawbar of the application preferably, the limiting assembly includes limiting plug-in rod, first rotating shaft, scissor frame, rotating wheel, sliding sleeve and first sliding limiting rod, the limiting plug-in rod is slidably arranged in the top inside of the limiting power shell, the one end inside of the limiting plug-in rod is fixedly connected with the first rotating shaft, one end outside of the first rotating shaft is rotatably connected with the scissor frame, the free end of the scissor frame away from the first rotating shaft is rotatably provided with the rotating wheel, the rear end of the scissor frame is rotatably connected with the sliding sleeve, the inside of multiple opposite sliding sleeves is connected by first sliding limiting rod, and the sliding sleeve close to the position of the rotating wheel is fixedly connected with the end of the first sliding limiting rod.

[0012] Preferably, the limiting assembly of the automatic windproof pull rod further comprises a driven block, a second sliding limiting rod, a motor fixing frame, a double-shaft motor, a threaded rod, a sliding block, a push rod and a first compression spring, the driven block is rotatably installed at the other end of the scissor frame, the inner sides of the two driven blocks are slidably connected through the second sliding limiting rod, the central position of the second sliding limiting rod is fixedly connected with the motor fixing frame, the inner side of the motor fixing frame is installed with the double-shaft motor, the main shaft of the double-shaft motor is fixedly connected with the threaded rod at the end, the threaded directions of the two threaded rods are opposite and are threadedly connected with the driven block, one end of the rotating wheel is contactively connected with the sliding block, the sliding block slides in the inner side of the limiting plug rod, the other end of the sliding block and the inner space of the limiting plug rod are fixedly connected with the first compression spring, the end of the sliding block provided with the first compression spring is fixedly connected with the push rod, and the push rod slides in the inner side of the limiting plug rod.

[0013] Preferably, the fixing assembly of the automatic windproof pull rod comprises a fixing seat, a square rod, a second rotating shaft, a gear, a rotating support, a limiting head, a limiting part, a torsional spring and a second compression spring, one end of the fixing seat is fixedly arranged in the groove opened on the ground and is located at the other side opposite to the embedded part, the inner side of the fixing seat is slidably connected with the square rod, the upper and lower ends of the square rod are both provided with teeth, the inner side of the fixing seat is fixedly connected with the second rotating shaft, the outer side of the second rotating shaft is rotatably connected with the gear, one end of the gear is fixedly connected with the rotating support, the other end of the rotating support is fixedly connected with the limiting head, one end of the rotating support is fixedly connected with the limiting part, the two ends of the torsional spring are respectively arranged on the outer sides of the limiting part and the fixing seat, and the second compression spring is fixed between the outer side of the square rod in the radial extension direction and the fixing seat.

[0014] Preferably, the separation control assembly comprises a sliding shell, a limiting sliding block, an annular piston, a communication channel, a control chamber, a third compression spring, a fourth compression spring, a first sliding sealing plate and a stroke limiting portion, the sliding shell is slidingly installed in the inner side of one end of the fixed seat and the sliding stroke is limited by the limiting sliding block, one end of the sliding shell is provided with a recess capable of accommodating the sliding of the square rod, the inner side of the sliding shell is slidingly provided with the annular piston, the cavity for the movement of the square rod in the inner side of the sliding shell and the cavity for the movement of the annular piston in the inner side of the sliding shell are communicated through the communication channel and the control chamber and are filled with oil, the right end of the annular piston and the sliding shell are connected through the third compression spring, the control chamber in the inner side of the sliding shell is fixedly connected with the fourth compression spring, the other end of the fourth compression spring is fixedly connected with the first sliding sealing plate, the first sliding sealing plate can block one end of the communication channel, the relative position of the movement of the first sliding sealing plate is provided with the stroke limiting portion, and the stroke limiting portion is fixed in the inner side of the sliding shell.

[0015] Preferably, the separation control assembly further comprises a flexible sealing film, a piston head, a radial channel, a second sliding sealing plate, a small through hole and a fifth compression spring, the sliding shell is provided with a through hole capable of communicating the control chamber with the outside at one end of the fixed seat, the flexible sealing film is fixedly connected to the inner side of the through hole position of the sliding shell, the piston head is slidingly connected to the through hole position between the flexible sealing film and the control chamber, the inner side of the piston head is provided with the radial channel, the both ends of the radial channel are provided with through channels perpendicular to the radial channel, the second sliding sealing plate is slidingly arranged on the inner side of the piston head and can limit the flow of liquid in the radial channel, the small through hole is arranged in the overlapping part of the second sliding sealing plate and the radial channel, the left end of the second sliding sealing plate is fixedly connected with the fifth compression spring, and the other end of the fifth compression spring is fixed to the inner side of the sliding shell.

[0016] Compared with the prior art, the automatic windproof pull rod has the beneficial effects that: through the cooperation of the windproof pull rod mechanism, the winch and the telescopic rod limiting mechanism, the crane or other equipment can be stably fixed on the ground when a typhoon attacks, so as to prevent the equipment from being blown down by the typhoon and causing serious economic losses; at the same time, compared with the traditional manual fixing device, the fixing efficiency is higher, the equipment can be fixed in a short time, and the speed of the equipment being blown down by the typhoon can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are meant to explain the application without limiting the scope thereof. In the drawings:

[0018] Figure 1 The schematic diagram of the whole structure of the application in the separated state;

[0019] Figure 2 The schematic diagram of the whole structure of the application in the plugged state;

[0020] Figure 3 The schematic diagram of the whole structure of the windproof pull rod mechanism in the application;

[0021] Figure 4 The schematic diagram of the structure of the windproof pull rod mechanism in the application in the extended state;

[0022] Figure 5 The schematic diagram of the connection structure of the windproof fixed rod assembly in the application;

[0023] Figure 6 The schematic diagram of the connection structure of the windproof fixed rod assembly in the application in the extended state;

[0024] Figure 7 The schematic diagram of the whole structure of the windproof fixed rod assembly in the application;

[0025] Figure 8 The schematic diagram of the whole structure of the windproof telescopic rod assembly in the application;

[0026] Figure 9 The schematic diagram of the installation structure of the double hanging ear plate in the application;

[0027] Figure 10 The schematic diagram of the whole structure of the telescopic rod limiting mechanism in the application;

[0028] Figure 11 The schematic diagram of the whole structure of the telescopic rod limiting mechanism in the application in the plugged state;

[0029] Figure 12 The schematic diagram of the enlarged structure of A in the application; Figure 11

[0030] Figure 13 The schematic diagram of the locked state structure of the fixed assembly in the application;

[0031] Figure 14 The schematic diagram of the initial state structure of the fixed assembly in the application;

[0032] Figure 15 The schematic diagram of the enlarged structure of B in the application; Figure 14

[0033] ​​Figure 16 It is the internal structure section view of the limiting component in the application;

[0034] Figure 17 It is the internal structure section view of the limiting component in the application Figure 16 It is the enlarged structure schematic view at C of the application;

[0035] Figure 18 It is the internal structure section view of the separation control component in the application;

[0036] Figure 19 It is the internal structure section view of the separation control component in the application Figure 18 It is the enlarged structure schematic view at D of the application;

[0037] Figure 20 It is the enlarged structure schematic view at D of the application Figure 18 It is the enlarged structure schematic view at D of the application.

[0038] In the figure:

[0039] 1, windproof pull rod mechanism;

[0040] 11, windproof fixed rod assembly; 111, windproof fixed rod body; 112, sliding support part;

[0041] 12, windproof telescopic rod assembly; 121, windproof telescopic rod body; 1211, plug-in hole; 122, limiting sliding rod; 123, first steel rope ear; 124, embedded part; 125, double ear plate; 126, pin shaft; 127, steel cable; 128, second steel rope ear; 129, pendulum;

[0042] 2, winch;

[0043] 3, telescopic rod limiting mechanism;

[0044] 31, positioning induction assembly; 311, induction support frame; 312, pressure sensor; 313, first permanent magnet; 314, second permanent magnet;

[0045] 32, limiting power assembly; 321, limiting power shell; 322, air pump; 323, gas tank; 324, air pipe; 325, normally closed electromagnetic air valve;

[0046] 33, limiting component; 331, limiting plug-in rod; 332, first rotating shaft; 333, scissor frame; 334, rotating wheel; 335, sliding sleeve; 336, first sliding limiting rod; 337, driven block; 3371, second sliding limiting rod; 3372, motor fixing frame; 3373, double-shaft motor; 3374, threaded rod; 338, sliding block; 3381, push rod; 3382, first compression spring;

[0047] 34, fixing assembly; 341, fixing seat; 342, square rod; 343, second rotating shaft; 344, gear; 345, rotating support; 346, limiting head; 347, limiting part; 348, torsional spring; 349, second compression spring;

[0048] 35, separation control assembly; 351, sliding shell; 3511, limiting slider; 352, annular piston; 353, communication channel; 354, control chamber; 355, third compression spring; 356, fourth compression spring; 3561, first sliding sealing plate; 3562, stroke limiting part; 357, flexible sealing membrane; 3571, piston head; 3572, radial channel; 3573, second sliding sealing plate; 3574, small through hole; 3575, fifth compression spring. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0050] As shown in the drawings: Figures 1-20

[0051] An automatic windproof pull rod comprises a windproof pull rod mechanism 1, a winch 2 and a telescopic rod limiting mechanism 3. The windproof pull rod mechanism 1 comprises a windproof fixing rod assembly 11 and a windproof telescopic rod assembly 12. The telescopic rod limiting mechanism 3 comprises a positioning sensing assembly 31, a limiting power assembly 32, a limiting assembly 33, a fixing assembly 34 and a separation control assembly 35.

[0052] The windproof telescopic rod assembly 12 is slidably arranged at the bottom of the windproof fixing rod assembly 11. The winch 2 is installed at a fixed position relative to an object to be fixed and can lift the windproof telescopic rod assembly 12. The positioning sensing assembly 31 is installed at a corresponding position directly below the windproof telescopic rod assembly 12. The limiting power assembly 32 is installed on a side corresponding to the positioning sensing assembly 31. The limiting assembly 33 is slidably arranged on the inner side of the limiting power assembly 32. The fixing assembly 34 is installed on the other side corresponding to the positioning sensing assembly 31. The separation control assembly 35 is arranged on the inner side of the fixing assembly 34.

[0053] ​In the embodiment, the crane or other equipment can be stably fixed on the ground when a typhoon attacks through the cooperation of the windproof pull rod mechanism 1, the winch 2 and the telescopic rod limiting mechanism 3. The windproof telescopic rod assembly 12 can be driven to slide in the windproof fixed rod assembly 11 through the winch 2. When the windproof telescopic rod assembly 12 moves downward to the maximum stroke, the positioning sensing assembly 31 can detect whether the windproof telescopic rod assembly 12 moves to the required position. If the target position is reached, the cooperation of the fixing assembly 34 can temporarily fix the windproof telescopic rod assembly 12 on the ground through the limiting power assembly 32 and the limiting assembly 33. The separation control assembly 35 can be used to release the limitation of the windproof telescopic rod assembly 12 on the ground.

[0054] Further,

[0055] In an optional embodiment, the windproof fixed rod assembly 11 comprises a windproof fixed rod body 111 and a sliding support part 112. The top end of the windproof fixed rod body 111 is rotatably installed on one side of the fixed object, and the bottom of the windproof fixed rod body 111 is provided with the sliding support part 112.

[0056] In an optional embodiment, the windproof telescopic rod assembly 12 comprises a windproof telescopic rod body 121, a plug-in hole 1211, a limiting sliding rod 122, a first steel rope ear 123, a buried part 124, a double ear plate 125, a pin shaft 126, a steel cable 127, a second steel rope ear 128 and a pendulum 129. The bottom of the windproof telescopic rod body 121 is provided with the plug-in hole 1211. The top end of the windproof telescopic rod body 121 is internally provided with the limiting sliding rod 122, which can slide in the sliding support part 112. The top of the windproof telescopic rod body 121 is symmetrically provided with the first steel rope ear 123 on both sides, which can be fixedly connected with the free end of the steel rope of the winch 2. The ground directly below the windproof telescopic rod body 121 is fixedly provided with the buried part 124, which can be matched with the bottom of the windproof telescopic rod body 121. The inner side of one end of the windproof telescopic rod body 121 is rotatably connected with the double ear plate 125 through the pin shaft 126. The double ear plate 125 is connected with the second steel rope ear 128 through the steel cable 127 and suspends the pendulum 129.

[0057] In this embodiment: through the setting of the windproof fixed rod body 111, the top end of the windproof fixed rod body 111 is rotatably installed on the machine to be fixed, the sliding support part 112 provided on the windproof fixed rod body 111 can provide a basis for the sliding of the windproof telescopic rod assembly 12, through the limiting sliding rod 122 provided in the windproof telescopic rod assembly 12, the limiting sliding rod 122 can slide inside the sliding support part 112 of the windproof fixed rod body 111, so as to lift the windproof telescopic rod assembly 12, the movement of the limiting sliding rod 122 can drive the windproof telescopic rod body 121 to move together, the first steel rope ear 123 provided on the windproof telescopic rod body 121 can be connected with the steel rope end of the winch 2, through the winch 2, the steel rope is lengthened, after the steel rope is lengthened, the windproof telescopic rod body 121 is subjected to its own great gravity and moves downward, since the windproof telescopic rod body 121 is slid through the limiting sliding rod 122 and rotates around the limiting sliding rod 122, when there is a larger wind blowing, the windproof telescopic rod body 121 will swing left and right around the limiting sliding rod 122, when the swing amplitude is too large, it may affect the cooperation between the plug-in hole 1211 of the windproof telescopic rod body 121 and the embedded part 124, through the setting of the pendulum 129, the swing amplitude of the windproof telescopic rod body 121 can be better reduced, the pendulum 129 is connected with the double ear plate 125 at both ends through the second steel rope ear 128 and the steel cable 127, the central position of the double ear plate 125 is rotatably installed inside the windproof telescopic rod body 121 through the pin shaft 126, so when the pendulum 129 and the windproof telescopic rod body 121 occur relative displacement, the force exerted by the pendulum 129 on the windproof telescopic rod body 121 is directly acting on the pin shaft 126, so as to play the role of damper, reducing the swing amount of the windproof telescopic rod body 121 when it is blown by the wind.

[0058] It should be noted that: in order to better reduce the swing amount of the windproof telescopic rod body 121, a windproof bucket can be installed outside the pendulum 129, so that the windproof bucket covers the pendulum 129, the windproof bucket is installed on the ground, since the windproof telescopic rod body 121 is at the top end of the stroke of the sliding support part 112, the pendulum 129 is also not far from the ground, when the windproof telescopic rod body 121 moves downward, the pendulum 129 is almost attached to the ground, so a windproof bucket is installed outside the pendulum 129, which can prevent the wind from directly blowing the pendulum 129, resulting in a reduction in the damping effect of the pendulum 129.

[0059] Further;

[0060] In an optional embodiment, the positioning sensing assembly 31 comprises a sensing support frame 311, a pressure sensor 312, a first permanent magnet 313 and a second permanent magnet 314. The two sensing support frames 311 are symmetrically fixed at the bottom ends of the two sides of the embedded part 124. The top end inner side of the sensing support frame 311 is fixedly connected with the pressure sensor 312. The top end of the pressure sensor 312 is fixedly connected with the first permanent magnet 313. The second permanent magnet 314 is embedded and fixed at the bottom end inner side of the windproof telescopic rod body 121.

[0061] In the embodiment, when the windproof telescopic rod body 121 moves downward and approaches the embedded part 124, in order to detect whether the insertion hole 1211 of the windproof telescopic rod body 121 is aligned with the hole of the embedded part 124, the positioning sensing assembly 31 is arranged to detect. When the windproof telescopic rod body 121 approaches the embedded part 124 to a proper distance, the second permanent magnet 314 embedded at the bottom end inner side of the windproof telescopic rod body 121 approaches the first permanent magnet 313. The first permanent magnet 313 is affected by the magnetic force and moves upward or downward. Regardless of the direction in which the first permanent magnet 313 moves, the first permanent magnet 313 will change the pressure applied to the pressure sensor 312. When the two pressure sensors 312 change at the same time and the changed values are almost the same (i.e. within a reasonable error range), it is considered that the insertion hole 1211 of the windproof telescopic rod body 121 is aligned with the hole of the embedded part 124. At this time, the next step can be performed.

[0062] Further,

[0063] In an optional embodiment, the limiting power assembly 32 comprises a limiting power shell 321, an air pump 322, an air tank 323, an air pipe 324 and a normally closed electromagnetic air valve 325. The bottom end of the limiting power shell 321 is fixed on the ground and located at a side corresponding to the embedded part 124. The air pump 322 is fixed on the ground and communicates with the air tank 323 fixed at the bottom end inner side of the limiting power shell 321 through a pipeline. One end of the air tank 323 is fixedly communicated with the air pipe 324. One end outer side of the air pipe 324 is fixedly communicated with the normally closed electromagnetic air valve 325.

[0064] In an optional embodiment, the limiting assembly 33 comprises a limiting rod 331, a first rotating shaft 332, a scissor frame 333, a rotating wheel 334, a sliding sleeve 335 and a first sliding limiting rod 336, the limiting rod 331 is slidingly arranged in the inner side of the top end of the limiting power shell 321, one end of the limiting rod 331 is fixedly connected with the first rotating shaft 332, the outer side of one end of the first rotating shaft 332 is rotatably connected with the scissor frame 333, the free end of the scissor frame 333 away from the first rotating shaft 332 is rotatably provided with the rotating wheel 334, the rear end of the scissor frame 333 is rotatably connected with the sliding sleeve 335, the inner sides of the plurality of opposite sliding sleeves 335 are connected through the first sliding limiting rod 336, and the sliding sleeve 335 close to the rotating wheel 334 is fixedly connected with the end of the first sliding limiting rod 336.

[0065] In an optional embodiment, the limiting assembly 33 further comprises a driven block 337, a second sliding limiting rod 3371, a motor fixing frame 3372, a double-shaft motor 3373, a threaded rod 3374, a sliding block 338, a push rod 3381 and a first compression spring 3382, the driven block 337 is rotatably installed at the other end of the scissor frame 333, the inner sides of the two driven blocks 337 are slidingly connected through the second sliding limiting rod 3371, the central position of the second sliding limiting rod 3371 is fixedly connected with the motor fixing frame 3372, the inner side of the motor fixing frame 3372 is installed with the double-shaft motor 3373, the main shaft ends of the double-shaft motor 3373 are fixedly connected with the threaded rods 3374, the threaded directions of the two threaded rods 3374 are opposite and are threadedly connected with the driven block 337, one end of the rotating wheel 334 is contactingly connected with the sliding block 338, the sliding block 338 slides in the inner side of the limiting rod 331, the other end of the sliding block 338 and the inner space of the limiting rod 331 are fixedly connected with the first compression spring 3382, one end of the sliding block 338 provided with the first compression spring 3382 is fixedly connected with the push rod 3381, and the push rod 3381 slides in the inner side of the limiting rod 331.

[0066] In an alternative embodiment, the fixing assembly 34 comprises a fixing base 341, a square rod 342, a second rotating shaft 343, a gear 344, a rotating support 345, a limiting head 346, a limiting part 347, a torsional spring 348 and a second compression spring 349. One end of the fixing base 341 is fixed in a groove formed in the ground and located at the other side opposite to the embedded part 124. The inner side of the fixing base 341 is slidably connected with the square rod 342. The upper and lower ends of the square rod 342 are provided with gear teeth. The inner side of the fixing base 341 is fixedly connected with the second rotating shaft 343. The outer side of the second rotating shaft 343 is rotatably connected with the gear 344. One end of the gear 344 is fixedly connected with the rotating support 345. The other end of the rotating support 345 is fixedly connected with the limiting head 346. One end of the rotating support 345 is fixedly connected with the limiting part 347. The two ends of the torsional spring 348 are respectively mounted on the outer sides of the limiting part 347 and the fixing base 341. The second compression spring 349 is fixed between the outer side of the square rod 342 in the radial direction and the fixing base 341.

[0067] In an alternative embodiment, the separation control assembly 35 comprises a sliding shell 351, a limiting sliding block 3511, an annular piston 352, a communication channel 353, a control chamber 354, a third compression spring 355, a fourth compression spring 356, a first sliding sealing plate 3561 and a stroke limiting part 3562. The sliding shell 351 is slidably mounted on the inner side of one end of the fixing base 341 and the sliding stroke is limited by the limiting sliding block 3511. One end of the sliding shell 351 is provided with a recess capable of accommodating the sliding of the square rod 342. The inner side of the sliding shell 351 is slidably provided with the annular piston 352. The cavity for the movement of the square rod 342 in the sliding shell 351 and the cavity for the movement of the annular piston 352 in the sliding shell 351 are communicated through the communication channel 353 and the control chamber 354 and filled with oil. The right end of the annular piston 352 and the sliding shell 351 are connected by the third compression spring 355. The control chamber 354 of the sliding shell 351 is fixedly connected with the fourth compression spring 356 on the inner side. The other end of the fourth compression spring 356 is fixedly connected with the first sliding sealing plate 3561, which can block one end of the communication channel 353. The relative position of the movement of the first sliding sealing plate 3561 is provided with the stroke limiting part 3562, which is fixed on the inner side of the sliding shell 351.

[0068] In an alternative embodiment, the separation control assembly 35 further comprises a flexible sealing film 357, a piston head 3571, a radial channel 3572, a second sliding sealing plate 3573, a small hole 3574 and a fifth compression spring 3575. The sliding shell 351 is provided with a through hole at one end of the fixed seat 341, which can communicate the control chamber 354 with the outside. The flexible sealing film 357 is fixedly connected to the inside of the through hole position of the sliding shell 351. The piston head 3571 is slidingly connected to the through hole position between the flexible sealing film 357 and the control chamber 354. The inside of the piston head 3571 is provided with the radial channel 3572, both ends of which are provided with a through channel perpendicular to the radial channel 3572. The second sliding sealing plate 3573 is slidingly arranged on the inside of the piston head 3571 and can limit the flow of liquid in the radial channel 3572. The second sliding sealing plate 3573 and the radial channel 3572 are provided with the small hole 3574 at the overlapping part. The left end of the second sliding sealing plate 3573 is fixedly connected with the fifth compression spring 3575, and the other end of the fifth compression spring 3575 is fixed to the inside of the sliding shell 351.

[0069] In the embodiment that the limiting plug 331 is inserted into the embedded part 124 and the windproof telescopic rod body 121 to limit them: when the windproof telescopic rod assembly 12 is controlled to descend by the winch 2, the air pump 322 is used to fill the air tank 323 with air at the same time, so that a certain amount of high-pressure air is stored in the air tank 323. When it is detected that the insertion hole 1211 of the windproof telescopic rod body 121 is aligned with the hole of the embedded part 124, the normally closed electromagnetic air valve 325 is immediately energized. After the normally closed electromagnetic air valve 325 is energized, the air passage 324 is opened, so that the high-pressure gas in the air tank 323 enters the cavity inside the movable limiting plug 331 through the air passage 324, and the limiting plug 331 is quickly stretched out of the limiting power shell 321 under the influence of the air pressure, until the limiting plug 331 hits the fixed seat 341, at which time the preliminary fixing of the insertion of the limiting plug 331 into the embedded part 124 and the windproof telescopic rod body 121 in the windproof fixed rod assembly 11 is completed. At the same time, in the process that the limiting plug 331 hits the fixed seat 341, the limiting plug 331 will first hit the sliding shell 351 in the separation control assembly 35, so that the sliding shell 351 is forced to move. When the sliding shell 351 moves, the first sliding sealing plate 3561 blocks the communication passage 353 that communicates the control chamber 354, so that the liquid in the remaining space inside the sliding shell 351 cannot flow, and therefore the sliding shell 351 moves together with the square rod 342. The movement of the square rod 342 drives the gear 344 to rotate around the second rotating shaft 343 through the upper arranged teeth, and the rotation of the gear 344 drives the rotating support 345 to rotate, which drives the limiting part 347 to rotate against the elastic force of the torsional spring 348. At this time, the rotating support 345 drives the limiting head 346 to move and insert into the groove opened on the right side of the limiting plug 331, so as to limit and engage the limiting plug 331 through the limiting head 346, prevent the limiting plug 331 from separating from the embedded part 124 and the windproof telescopic rod body 121, and make the limiting plug 331 more stable after being inserted.

[0070] It should be noted that the groove opened on the right side of the limiting plug 331 can be annular or matched with the limiting head 346.

[0071] It should be further noted that the limiting slide 3511 arranged on the upper side of the sliding shell 351 can make the sliding shell 351 more stable when sliding inside the fixed seat 341 and prevent it from separating.

[0072] In the embodiment that the limiting plug 331 has been inserted into the embedded part 124 and the windproof telescopic rod body 121 and needs to be separated:

[0073] Step one: by giving power to the double shaft motor 3373, the double shaft motor 3373 is powered to drive the two threaded rods 3374 to rotate, the threaded rods 3374 rotate to drive the driven block 337 to move, through the second sliding limiting rod 3371 arranged in the driven block 337, the two driven blocks 337 can keep parallel when moving, the driven block 337 moves to drive the scissor frame 333 to extend and retract, because the whole scissor frame 333 is rotated and fixed at a position inside the limiting plug rod 331 through the first rotating shaft 332, so when the scissor frame 333 extends and retracts, the position of the first rotating shaft 332 of the scissor frame 333 remains unchanged, the right end of the scissor frame 333 will extend and retract, the scissor frame 333 will drive the rotating wheel 334 to move and push the sliding block 338 to overcome the elastic force of the first compression spring 3382, the sliding block 338 moves to drive the push rod 3381 to move, the push rod 3381 moves out of the outside of the limiting plug rod 331 and extends to the inside of the left end of the sliding shell 351 and contacts the flexible sealing film 357, the push rod 3381 continues to move to push the flexible sealing film 357 to deform, the flexible sealing film 357 is pushed by the push rod 3381 to exert a pushing force on the piston head 3571, so that the piston head 3571 moves, the piston head 3571 moves to push the first sliding sealing plate 3561 to move against the elastic force of the fourth compression spring 356, until the first sliding sealing plate 3561 moves close to or contacts the stroke limiting portion 3562, at this time the first sliding sealing plate 3561 does not block the communication passage 353, affected by the elastic force of the second compression spring 349, the second compression spring 349 pushes the square rod 342 to move, the square rod 342 moves to push the oil in the remaining space of the square rod 342 in the sliding shell 351 out, so that part of the oil enters the space where the annular piston 352 moves through the control chamber 354 and the communication passage 353, and the annular piston 352 moves against the elastic force of the third compression spring 355, so that the square rod 342 can move and insert into the inside of the sliding shell 351 without changing the position of the sliding shell 351, according to the above working principle, the square rod 342 moves to drive the gear 344 to drive the rotating support 345 to rotate back to the open state, so that the rotating support 345 drives the limiting head 346 to pull out from the slot inside the limiting plug rod 331, releasing the limiting of the limiting head 346 to the limiting plug rod 331.

[0074] It should be noted that: in order to ensure that the shears frame 333 is more stable when stretching, the shears frame 333 will move the upper sliding sleeve 335 together, and the sliding sleeve 335 can rotate on the determined position on the shears frame 333, and a plurality of sliding sleeves 335 on a straight line are limited by a first sliding limiting rod 336, so that the shears frame 333 can be more stable when stretching, and the degree of bending is reduced.

[0075] It should be noted that: the elastic force of the second compression spring 349 is much greater than that of the third compression spring 355.

[0076] Step two: after the piston head 3571 is indirectly pushed to move by the push rod 3381, the push rod 3381 should return to the original position immediately, but the piston head 3571 cannot return immediately at this time. If the piston head 3571 also returns immediately at this time, the first sliding sealing plate 3561 will be blocked, so a radial channel 3572 and a through channel connected with the radial channel 3572 are arranged in the piston head 3571. When the piston head 3571 moves to open the first sliding sealing plate 3561, the oil will first enter the inside of the radial channel 3572 through the right through channel, and under the pushing force of the oil movement, the oil will push the second sliding sealing plate 3573 to move and not to block the radial channel 3572, so that the radial channel 3572 is in a whole communication state, and finally discharged from the left through channel to the left side of the piston head 3571. The oil cannot be discharged to the outside due to the limitation of the flexible sealing film 357. In this process, the movement of the piston head 3571 is relatively fast, and the movement resistance is relatively small. However, when the piston head 3571 needs to move to the left, the oil on the left side of the piston head 3571 cannot push the second sliding sealing plate 3573, but only passes through the small hole 3574 formed in the second sliding sealing plate 3573, thereby causing great resistance to the movement of the piston head 3571, and the piston head 3571 moves to the left slowly. Under the limitation of the piston head 3571, even if the first sliding sealing plate 3561 is pushed by the fourth compression spring 356, it is also difficult to move quickly, so that the piston head 3571 will not move back to the original position quickly without the push of the push rod 3381, and the first sliding sealing plate 3561 is in an open state for a long time, so that the oil in the part of the sliding shell 351 directly in contact with the square rod 342 can flow continuously to gain time.

[0077] Step three: after the square rod 342 moves to the inside of the sliding shell 351, the limiting head 346 no longer limits the limiting plug rod 331, the fourth compression spring 356 pushes the first sliding sealing plate 3561 and slowly pushes the piston head 3571 to move, and after the first sliding sealing plate 3561 blocks the communication passage 353 again (that is, after the square rod 342 is no longer actively moved by the elastic force of the second compression spring 349, the movement stroke of the square rod 342 is limited by the gear 344), the elastic force of the third compression spring 355 on the annular piston 352 is released, and the annular piston 352 is forced to move, so that after the annular piston 352 moves, part of the oil liquid in the sliding space of the annular piston 352 is squeezed into the space inside the square rod 342 in the sliding shell 351 through the communication passage 353 and the control chamber 354. In this process, the first sliding sealing plate 3561 will be pushed to open the communication passage 353 again. Because the square rod 342 is filled with more oil liquid in the sliding space inside the sliding shell 351, the sliding shell 351 is forced to move to the initial state.

[0078] It should be noted that the elastic force of the third compression spring 355 is much greater than the elastic force of the fourth compression spring 356.

[0079] It should be noted that after the piston head 3571 moves to push the first sliding sealing plate 3561 to the maximum stroke, part of the piston head 3571 still slides in contact with the inside of the sliding shell 351.

[0080] Step four: while the above three steps are working, the gas pump 322 is reversely powered, and after the gas pump 322 is powered, the air inside the gas tank 323 is pumped out, so that the gas tank 323 is in a vacuum state at this time. After waiting for a period of time, the normally closed electromagnetic air valve 325 is powered (in this process, the normally closed electromagnetic air valve 325 can also be powered all the time), so that the normally closed electromagnetic air valve 325 opens the passage of the air pipe 324. Influenced by atmospheric pressure, the limiting plug rod 331 will immediately return to the original position and insert into the inside of the limiting power shell 321 without being limited by the limiting head 346, so as to realize the separation of the limiting plug rod 331, the windproof telescopic rod body 121 and the embedded part 124. Then the winch 2 is reversely powered, so that the winch 2 drives the windproof telescopic rod assembly 12 to move upward as a whole, and the whole separation work is completed.

[0081] It should be noted that after the limiting plug rod 331 extends to the maximum stroke, part of the limiting plug rod 331 is still inside the limiting power shell 321.

[0082] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic windproof pull rod, comprising a windproof pull rod mechanism (1), a winch (2) and a telescopic rod limiting mechanism (3), characterized in that: The windproof pull rod mechanism (1) comprises a windproof fixed rod assembly (11) and a windproof telescopic rod assembly (12), the telescopic rod limiting mechanism (3) comprises a positioning induction assembly (31), a limiting power assembly (32), a limiting assembly (33), a fixing assembly (34) and a separation control assembly (35); The bottom of the windproof fixed rod assembly (11) is slidably provided with the windproof telescopic rod assembly (12), the winch (2) is installed at a fixed position relative to the fixed object and can lift the windproof telescopic rod assembly (12), the positioning sensing assembly (31) is installed at a corresponding position directly below the windproof telescopic rod assembly (12), the limiting power assembly (32) is installed on a side corresponding to the positioning sensing assembly (31), the limiting assembly (33) is slidably arranged on the inner side of the limiting power assembly (32), the fixing assembly (34) is installed on the other side corresponding to the positioning sensing assembly (31), and the separation control assembly (35) is arranged on the inner side of the fixing assembly (34); the windproof fixed rod assembly (11) comprises a windproof fixed rod body (111) and a sliding support portion (112), the top end of the windproof fixed rod body (111) is rotatably installed on one side of the fixed object, and the bottom of the windproof fixed rod body (111) is provided with the sliding support portion (112); the windproof telescopic rod assembly (12) comprises a windproof telescopic rod body (121), a plug-in hole (1211), a limiting sliding rod (122), a first steel rope ear (123), a buried part (124), a double-ear plate (125), a pin shaft (126), a steel cable (127), a second steel rope ear (128) and a pendulum (129), the bottom of the windproof telescopic rod body (121) is provided with the plug-in hole (1211), the top end inner side of the windproof telescopic rod body (121) is provided with the limiting sliding rod (122), the limiting sliding rod (122) can slide in the inner side of the sliding support portion (112), the top two sides of the windproof telescopic rod body (121) are symmetrically provided with the first steel rope ear (123), the first steel rope ear (123) can be fixedly connected with the free end of the steel rope of the winch (2), the ground directly below the windproof telescopic rod body (121) is fixed with the buried part (124) capable of cooperating with the split bottom of the windproof telescopic rod body (121), one end inner side of the windproof telescopic rod body (121) is rotatably connected with the double-ear plate (125) through the pin shaft (126), the double-ear plate (125) is connected with the second steel rope ear (128) through the steel cable (127) and suspends the pendulum (129); the positioning sensing assembly (31) comprises an induction support frame (311), a pressure sensor (312), a first permanent magnet (313) and a second permanent magnet (314), two induction support frames (311) are fixed on the bottom two sides of the buried part (124), the top end inner side of the induction support frame (311) is fixedly connected with the pressure sensor (312), the top end of the pressure sensor (312) is fixedly connected with the first permanent magnet (313), and the second permanent magnet (314) is embedded and fixed in the bottom inner side of the windproof telescopic rod body (121).

2. The automatic windscreen wiper bar according to claim 1, characterized in that The limiting power assembly (32) comprises a limiting power shell (321), an air pump (322), an air tank (323), a breather pipe (324) and a normally closed electromagnetic air valve (325), the bottom end of the limiting power shell (321) is fixed on the ground and located at the corresponding side of the embedded part (124), the air pump (322) is fixed on the ground and communicated with the air tank (323) fixed in the inner side of the bottom end of the limiting power shell (321) through a pipeline, one end of the air tank (323) is fixedly communicated with the breather pipe (324), and one end of the breather pipe (324) is fixedly communicated with the normally closed electromagnetic air valve (325) outside.

3. The automatic windscreen wiper bar according to claim 2, characterized in that The limiting assembly (33) comprises a limiting plug rod (331), a first rotating shaft (332), a scissor frame (333), a rotating wheel (334), a sliding sleeve (335) and a first sliding limiting rod (336), the limiting plug rod (331) is slidingly arranged in the inner side of the top end of the limiting power shell (321), the inner side of one end of the limiting plug rod (331) is fixedly connected with the first rotating shaft (332), the outer side of one end of the first rotating shaft (332) is rotatably connected with the scissor frame (333), the free end of the scissor frame (333) away from the first rotating shaft (332) is rotatably provided with the rotating wheel (334), the rear end of the scissor frame (333) is rotatably connected with the sliding sleeve (335), the inner sides of a plurality of opposite sliding sleeves (335) are connected through the first sliding limiting rod (336), and the sliding sleeve (335) close to the position of the rotating wheel (334) is fixedly connected with the end of the first sliding limiting rod (336).

4. The automatic windscreen wiper bar according to claim 3, characterized in that: The limiting component (33) further comprises driven blocks (337), second sliding limiting rods (3371), motor fixing frames (3372), double-shaft motors (3373), threaded rods (3374), sliding blocks (338), push rods (3381) and first compression springs (3382), the driven blocks (337) are rotationally installed at the other ends of the scissor frames (333), the inner sides of the two driven blocks (337) are both connected through the second sliding limiting rods (3371), the central positions of the second sliding limiting rods (3371) are fixedly connected with the motor fixing frames (3372), the inner sides of the motor fixing frames (3372) are installed with the double-shaft motors (3373), the main shaft ends of the double-shaft motors (3373) are fixedly connected with the threaded rods (3374), the threaded directions of the two threaded rods (3374) are opposite and are in threaded connection with the driven blocks (337), one end of the rotating wheel (334) is contactively connected with the sliding block (338), the sliding block (338) slides at the inner side of the limiting plug rod (331), the other end of the sliding block (338) and the inner space of the limiting plug rod (331) are fixedly connected with the first compression spring (3382), one end of the sliding block (338) provided with the first compression spring (3382) is fixedly connected with the push rod (3381), and the push rod (3381) slides at the inner side of the limiting plug rod (331).

5. The automatic windscreen wiper bar according to claim 4, characterized in that The fixing component (34) comprises a fixing seat (341), a square rod (342), a second rotating shaft (343), a gear (344), a rotating support (345), a limiting head (346), a limiting part (347), a torsional spring (348) and a second compression spring (349), one end of the fixing seat (341) is fixedly arranged in a groove arranged on the ground and is located at the other side opposite to the embedded part (124), the inner side of the fixing seat (341) is slidably connected with the square rod (342), the upper and lower ends of the square rod (342) are both provided with teeth, the inner side of the fixing seat (341) is fixedly connected with the second rotating shaft (343), the outer side of the second rotating shaft (343) is rotationally connected with the gear (344), one end of the gear (344) is fixedly connected with the rotating support (345), the other end of the rotating support (345) is fixedly connected with the limiting head (346), one end of the rotating support (345) is fixedly connected with the limiting part (347), the two ends of the torsional spring (348) are respectively arranged at the outer sides of the limiting part (347) and the fixing seat (341), and the second compression spring (349) is fixed between the outer side of the square rod (342) in the radial extension direction and the fixing seat (341).

6. The automatic windscreen wiper bar according to claim 5, characterized in that The separation control assembly (35) comprises a sliding shell (351), a limiting sliding block (3511), an annular piston (352), a communication channel (353), a control chamber (354), a third compression spring (355), a fourth compression spring (356), a first sliding sealing plate (3561) and a stroke limiting portion (3562), the sliding shell (351) is slidingly installed in the inner side of one end of the fixed seat (341) and the sliding stroke is limited by the limiting sliding block (3511), one end of the sliding shell (351) is provided with a recess capable of accommodating the sliding of the square rod (342), the inner side of the sliding shell (351) is slidingly provided with the annular piston (352), the cavity for the movement of the square rod (342) in the inner side of the sliding shell (351) and the cavity for the movement of the annular piston (352) in the inner side of the sliding shell (351) are communicated through the communication channel (353) and the control chamber (354) and are filled with oil, the right end of the annular piston (352) and the sliding shell (351) are connected through the third compression spring (355), the control chamber (354) in the inner side of the sliding shell (351) is fixedly connected with the fourth compression spring (356), the other end of the fourth compression spring (356) is fixedly connected with the first sliding sealing plate (3561), the first sliding sealing plate (3561) can block one end of the communication channel (353), the relative position of the movement of the first sliding sealing plate (3561) is provided with the stroke limiting portion (3562), and the stroke limiting portion (3562) is fixed in the inner side of the sliding shell (351).

7. The automatic windscreen wiper bar according to claim 6, characterized in that The separation control assembly (35) further comprises a flexible sealing film (357), a piston head (3571), a radial channel (3572), a second sliding sealing plate (3573), a small through hole (3574) and a fifth compression spring (3575), one end of the sliding shell (351) exposed to the fixed seat (341) is provided with a through hole capable of connecting the control chamber (354) and the outside, the flexible sealing film (357) is fixedly connected to the position inside the through hole of the sliding shell (351), the piston head (3571) is slidingly connected to the position of the through hole between the flexible sealing film (357) and the control chamber (354), the inner side of the piston head (3571) is provided with the radial channel (3572), both ends of the radial channel (3572) are provided with through channels perpendicular to the radial channel (3572), the second sliding sealing plate (3573) is slidingly arranged on the inner side of the piston head (3571) and can limit the flow of liquid in the radial channel (3572), the small through hole (3574) is provided in the overlapping part of the second sliding sealing plate (3573) and the radial channel (3572), the left end of the second sliding sealing plate (3573) is fixedly connected with the fifth compression spring (3575), and the other end of the fifth compression spring (3575) is fixed to the inner side of the sliding shell (351).

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