CN106320788A

CN106320788A - Power tower

Info

Publication number: CN106320788A
Application number: CN201610813203.1A
Authority: CN
Inventors: 朱萍
Original assignee: Tongxiang Xin Xin Intelligent Technology Co Ltd
Current assignee: Tongxiang Xin Xin Intelligent Technology Co Ltd
Priority date: 2016-09-09
Filing date: 2016-09-09
Publication date: 2017-01-11

Abstract

The invention discloses a power tower. The power tower comprises a vertically-arranged main rod body, a power box fixed to the upper end of the main rod body, and a base used for being fixed to a roof. The lower end of the main rod body is fixed to the base, a water retaining top cover is arranged on the power box, the water retaining top cover and the power box are connected through multiple cover rods, air passing space is formed between the water retaining top cover and the top of the power box, multiple top cooling holes communicated with the air passing space are formed in the top of the power box, and multiple line passing holes are formed in the bottom of the power box. Multiple vertical ventilating pipes are arranged on the power box, the upper ends of the vertical ventilating pipes are communicated with the interior of the power box, horizontal ventilating pipes are arranged on the vertical ventilating pipes, the inner ends of the transverse ventilating pipes are communicated with the lower ends of the vertical ventilating pipes, and the vertical ventilating pipes are fixed to the bottom of the power box. The power tower has the advantages that the structure is reasonable, electric equipment, power-on structures and the like can be supported, fixed and protected, waterproofness is high, an automatic heat dissipation function is achieved, and internal heat accumulation can be avoided.

Description

A kind of power tower

Technical field

The invention belongs to shaft tower technical field, particularly relate to a kind of power tower.

Background technology

Usually need on roof to arrange electric power, communication shaft tower, support various equipment, antenna etc. for fixing, auxiliary, its In, electric force pole tower also frequently arranges some distribution boxs, (such as transformator, connects in order to the electricity consumption main to some, energized structural Line device, controller etc.) protect.Current roof electric force pole tower, although equipment, antenna etc. can be supported fixing and protect Protect, but at waterproof ability, automatic heat radiation, avoid the aspects such as accumulated heat, be short of.

Summary of the invention

The present invention is to overcome deficiency of the prior art, it is provided that a kind of rational in infrastructure, can be to electrical equipment, energising Structures etc. are supported fixing and protection, and waterproof ability is strong, possesses automatic dissipating heat function, can avoid the power tower of internal accumulated heat.

To achieve these goals, the present invention is by the following technical solutions:

A kind of power tower, the electric power box including the mobile jib body being vertically arranged, being fixed on end with mobile jib and for fixing with roof Base, described mobile jib body lower end fixes with base, and electric power box is provided with dash overhead guard, passes through between dash overhead guard and electric power box Some cover bars connect, and form headroom between dash overhead guard and electric power box top, and electric power box top is provided with some and crosses gas sky Between connection top louvre, be provided with some threading holes bottom electric power box, electric power box is provided with some vent stacks, on vent stack Holding connect internal with electric power box, vent stack is provided with ventilation transverse tube, and ventilation transverse tube the inner connects with vent stack lower end, ventilation Vertical tube is fixed on bottom electric power box, crosses in headroom and is provided with some aerofluxus battens, the cover bar that aerofluxus batten is inner Yu neighbouring Hinged, dash overhead guard is provided with some and aerofluxus batten returning spring one to one, the upper end of returning spring and dash overhead guard Connecting, aerofluxus batten outer end connects with the lower end of corresponding returning spring.

As preferably, described ventilation transverse tube axis and mobile jib body axes intersect, any one ventilation transverse tube the inner is in this Between ventilation transverse tube outer end and mobile jib body.

As preferably, also include the shake-up cylinder fixing with roof, touch cylinder top and be provided with hole of reeving, touch cylinder inner bottom part and set Having and touch the shake-up piston that cylinder is slidably connected, the slidably direction touching piston is above-below direction, is provided with shake-up with mobile jib Drag-line, touches drag-line one end and connects mobile jib body, touches the drag-line other end and connects and touch piston, touches drag-line and reeve hole, tactile Dynamic cylinder inner top is provided with pressure transducer, touches piston and is provided with the shake-up pressure head for pushing up pressure pressure sensor, touches on cylinder It is provided with the ECU that detonates being connected with pressure transducer, is provided with, with mobile jib, the gas generator being connected with the ECU that detonates.

As preferably, being provided with the limit spring of at least vertical layout in described shake-up cylinder, limit spring upper end connects Touching the inner roof wall of cylinder, limit spring lower end connects touches piston-top surface.

As preferably, also including the rope winding wheel carrier fixing with roof, pulley yoke is provided with rope winding pulley, and rope winding pulley is with tactile Dynamic cylinder office in the opposite sides of mobile jib body, is provided with auxiliary drag-line with mobile jib, and auxiliary drag-line is reeved hole, the connection of auxiliary drag-line one end Mobile jib body, the auxiliary drag-line other end connects shake-up piston, auxiliary guy cable rounds rope winding pulley.

As preferably, it is provided with air jet pipe, air jet pipe axis horizontal and air jet pipe with described mobile jib inner with mobile jib body even Connecing, gas generator is in air jet pipe, and the gas release direction of gas generator is inner to air jet pipe outer end by air jet pipe.

As preferably, described air jet pipe is made up of the anti-ejector sleeve interconnected and sealing tube, anti-ejector sleeve be in sealing tube with Between mobile jib body, being provided with sealing ball in anti-ejector sleeve, sealing bulb diameter pushes away along near counter less than anti-ejector sleeve internal diameter, sealing tube internal diameter Pipe is to successively decreasing away from anti-ejector sleeve direction, and sealing tube maximum inner diameter is consistent with anti-ejector sleeve internal diameter, and sealing tube minimum diameter is less than sealing Bulb diameter, anti-ejector sleeve inner tubal wall is provided with at least one elastic spacing block, and elastic spacing block is in sealing ball and anti-ejector sleeve inner tube Between wall, the sealed ball of elastic spacing block compresses, and is arranged with the protection air bag being in unaerated state, on air jet pipe with mobile jib Being provided with middle QI KOU, middle QI KOU is connected with protection air bag by intervalve.

As preferably, described intervalve is provided with the diaphragm to be crushed blocking intervalve, sealing ball be in middle QI KOU with Between gas generator.

As preferably, described electric power box is provided with at least one and hangs drag-line, hangs drag-line one end and is connected with base, hangs drag-line another One end is connected with electric power box.

The invention has the beneficial effects as follows: rational in infrastructure, electrical equipment, energized structural etc. can be supported fixing and protect Protecting, waterproof ability is strong, possesses automatic dissipating heat function, can avoid internal accumulated heat.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention；

Fig. 2 is the structural representation that the present invention touches at cylinder；

Fig. 3 is the enlarged drawing in Fig. 1 at A；

Fig. 4 is the enlarged drawing in Fig. 3 at B；

Fig. 5 is the enlarged drawing in Fig. 3 at C.

In figure: mobile jib body 1, gas generator 11, protection air bag 12, intervalve 13, diaphragm to be crushed 131, electric power box 2, Push up louvre 21, vent stack 221, ventilation transverse tube 222, base 3, dash overhead guard 4, cover bar 41, cross headroom 42, aerofluxus batten 421, returning spring 422, shake-up cylinder 5, hole 51 of reeving, shake-up piston 52, shake-up drag-line 53, pressure transducer 54, shake-up pressure head 55, limit spring 56, rope winding pulley 61, auxiliary drag-line 62, air jet pipe 7, sealing ball 71, elastic spacing block 72, middle QI KOU 73, anti- Ejector sleeve 7a, sealing tube 7b, hang drag-line 8, roof 9.

Detailed description of the invention

The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.

In embodiment as shown in Figures 1 to 5, a kind of power tower, including the mobile jib body 1 being vertically arranged, it is fixed on mobile jib The electric power box 2 held with it and for the base 3 fixing with roof, described mobile jib body lower end is fixed with base, and electric power box is provided with Dash overhead guard 4, is connected by some cover bars 41 between dash overhead guard and electric power box, is formed between dash overhead guard and electric power box top Crossing headroom 42, electric power box top is provided with some and that headroom connects excessively top louvre 21, is provided with some logical bottom electric power box String holes, electric power box is provided with some vent stacks 221, and vent stack upper end is internal with electric power box to be connected, and vent stack is provided with Ventilation transverse tube 222, ventilation transverse tube the inner connects with vent stack lower end, and vent stack is fixed on bottom electric power box, crosses headroom In be provided with some aerofluxus battens 421, inner with the neighbouring cover bar of aerofluxus batten is hinged, and dash overhead guard is provided with some with row Gas batten returning spring 422 one to one, the upper end of returning spring is connected with dash overhead guard, and aerofluxus batten outer end is returned with corresponding The lower end of multiple spring connects.Mobile jib is as the support section of roof rods tower structure, and base is for fixing with roof 9 (the most logical Crossing bolt to fix, it is also possible to select the base of counter weight type, i.e. base itself is heavier, base is directly placed on roof as supporting Basis), it is the most important and need equipment to be protected or structure that transformator, optic fiber joint structure etc. can be set in electric power box.Electricity The threading hole in power bottom portion can be used for into and out of line, and dash overhead guard then can be used for protecting electric power box, plays certain straight sunning prevention effect Really, and be avoided that top louvre at enter rainwater.And owing to mobile jib body, electric power box etc. are arranged at roof space above, periphery is empty Air-flow logical (wind) is more, when blowing air over mobile jib body, understands some air-flow and enters in one or several ventilation transverse tube, then warp Entering after vent stack inside electric power box, air leaves electric power box from top louvre after flowing through electric power box, is finally expelled to gas Space, come back to the external world.So, make use of the feature that roof natural wind is more, in guiding airflow passes electric power box Portion, takes away heat produced by each electricity consumption within electric power box, heat radiating structure, carries out automatic heat radiation on the premise of not consuming energy, Avoid the internal accumulated heat of electric power box, the power equipment etc. in electric power box is protected.When exhaust airstream leaves electricity from top louvre Power case, during being finally expelled to headroom, coming back to the external world, air-flow can drive aerofluxus batten to turn along pin joint Dynamic, it is simultaneously used for the existence of returning spring, each aerofluxus batten all can carry out back rotation along the pin joint of self, forms " pectinid " Effect, such that it is able to the exhaust velocity accelerating the air crossed in headroom is discharged and improve top louvre (crosses gas empty Interior air is fanned out once, crosses the air pressure in headroom with regard to rapid decrease once, can form an of short duration negative pressure Air draught process, and the wind drawn is just from pushing up at louvre), it is similar to the most once bleed at electric power box top, and Under natural wind action, continuous air inlet bottom electric power box, thus the effect that below being formed on the whole, bleed in supply, top, can The flowing velocity of heat radiation air-flow, on the premise of not increasing energy consumption, improves radiating effect.

Described ventilation transverse tube axis and mobile jib body axes intersect, any one ventilation transverse tube the inner is in outside this ventilation transverse tube Between end and mobile jib body.For the ventilation transverse tube and vent stack of connection, it is (outer that ventilation transverse tube outer end is equivalent to " air inlet " Boundary's air enters), vent stack upper end is equivalent to " gas outlet " (air is expelled to electric power box), and therefore ventilation transverse tube the inner is in Between ventilation transverse tube outer end and mobile jib body, it is meant that " air inlet " is outwardly all the time, more conducively outside air enters ventilation horizontal stroke Pipe, and in vent stack enters into electric power box.

Also include the shake-up cylinder 5 fixing with roof, touch cylinder top and be provided with hole 51 of reeving, touch cylinder inner bottom part and be provided with and touch The shake-up piston 52 that dynamic cylinder is slidably connected, the slidably direction touching piston is above-below direction, is provided with shake-up drag-line with mobile jib 53, touch drag-line one end and connect mobile jib body, touch the drag-line other end and connect and touch piston, touch drag-line and reeve hole, shake-up Cylinder inner top is provided with pressure transducer 54, touches piston and is provided with the shake-up pressure head 55 for pushing up pressure pressure sensor, touches cylinder It is provided with the ECU that detonates being connected with pressure transducer, with mobile jib, is provided with the gas generator 11 being connected with the ECU that detonates.Described Being provided with the limit spring 56 of at least vertical layout in touching cylinder, limit spring upper end connects the inner roof wall touching cylinder, spacing Lower spring end connects shake-up piston-top surface.

Under the influence of the extrinsic factor such as external force collision or long neglected and in disrepair, typhoon weather, mobile jib body likely there will be Loosen fracture, then topple over, if mobile jib body is toppled over laterally (outside roof), easily fall on the ground, cause the event of hurting sb.'s feelings, dangerous Property is higher.If therefore mobile jib body is toppled over, it is desirable to it can swing to no man's land, inner side (in roof expanse).In this programme, when When the fracture of mobile jib body is toppled over, if mobile jib body falls down to inner side (roof), then touch Suo Wei stress tensioning, other action does not occur. When the fracture of mobile jib body is toppled over, if mobile jib body outwards (outside roof) is toppled over, then touch Suo Shouxian and be pulled, due to mobile jib body The caused pulling force that falls down is very big, moves so shake-up Suo great Li can be driven to pull on shake-up piston, and limit spring is significantly received simultaneously Contracting, touches piston driving shake-up pressure head and removes contact, top pressure pressure sensor, and signal is passed to the ECU that detonates, detonated by pressure transducer ECU controls gas generator and detonates, and produces a large amount of gas, when gas outwards sprays, mobile jib body is had the biggest counteracting force (propulsive thrust), such that it is able to promote internal towards roof for mobile jib body, ensures that mobile jib body and electric power box are toppled in roof, keeps away Exempt from mobile jib body and electric power box falls to causing security incidents such as hurting sb.'s feelings outside roof.Additionally, the gas release direction of gas generator Preferably level and towards outside roof, so can preferably provide propulsive thrust (now propulsive thrust action effect is more apparent), certainly, also Too much restriction can not be done, as long as mobile jib body inwardly (in roof expanse) can be promoted by propulsive thrust.Gas herein is sent out Raw device principle can identical with the gas generator principle of air bag on general-utility car (after i.e. giving signal, detonate generation gas Body).The pressure that pressure transducer is sensed needs to reach bigger value (can be set) according to practical situation, and detonate ECU Just can control gas generator to detonate, only change because of the pressure signal caused by the factor such as wind-force, rainwater, impact will not be produced.

Also including the rope winding wheel carrier fixing with roof, pulley yoke is provided with rope winding pulley 61, and rope winding pulley divides with touching cylinder Being in the opposite sides of mobile jib body, be provided with auxiliary drag-line 62 with mobile jib, auxiliary drag-line is reeved hole, and auxiliary drag-line one end connects mobile jib Body, the auxiliary drag-line other end connects shake-up piston, auxiliary guy cable rounds rope winding pulley.In aforementioned schemes, at mobile jib body outwards (towards room Top is outer) there is safety protection function when toppling over, and when the fracture of mobile jib body, inwardly (in roof) tilt, but be not fully disconnected Time, mobile jib body can be in inclination, be intended to the state do not fallen, and in this condition, mobile jib body loses rationally support, easily by external force To all angles, as the big tree of same soon drop, there is the biggest potential safety hazard in (such as wind-force) band.Now, no As directly allowed mobile jib body rupture, and fall on roof, to stop security risk, then consider further that and reinstall, construct or change Maintenance is advisable.In this programme, when the fracture of mobile jib body, inwardly (in roof) tilt it is, due to auxiliary guy cable rounds rope winding pulley and two End is ined succession mobile jib body and touch piston respectively, and the most auxiliary drag-line can be pulled by mobile jib body that (rope winding pulley is equivalent to serve " pulling force Turn to " effect), and auxiliary drag-line can pull and move on shake-up piston, thus carries out jet (gas generator as aforementioned schemes Detonate), mobile jib body inwardly (in roof) can be pushed over by propulsive thrust produced by jet.

Being provided with air jet pipe 7, air jet pipe axis horizontal and air jet pipe the inner with described mobile jib to be connected with mobile jib body, gas is sent out Raw device is in air jet pipe, and the gas release direction of gas generator is inner to air jet pipe outer end by air jet pipe.Gas occurs After device produces gas, although gas first meeting sprays from the gas liberation port of itself, but after leaving gas liberation port, has A part of gas spreads out that (a large amount of gas of instantaneous generation, gas can be immediately towards at extraneous relatively low pressure immediately towards surrounding Flowing, diffusion), thus the integrated pushing effect of mobile jib body is had substantially weakening.And in this programme, gas generator is in spray Tracheal strips, gas is initially after the gas liberation port of gas generator sprays, moreover it is possible to through one section of air jet pipe, thus by air jet pipe Guide, maintain overall jet-impingement direction level and towards outside roof, thus extend the action time of the propulsive thrust to mobile jib body, Improve the promotion effect to mobile jib body.

Described air jet pipe is made up of the anti-ejector sleeve 7a interconnected and sealing tube 7b, and anti-ejector sleeve is in sealing tube and mobile jib body Between, it being provided with sealing ball 71 in anti-ejector sleeve, sealing bulb diameter is less than anti-ejector sleeve internal diameter, and sealing tube internal diameter is along near anti-ejector sleeve extremely Successively decreasing away from anti-ejector sleeve direction, sealing tube maximum inner diameter is consistent with anti-ejector sleeve internal diameter, and sealing tube minimum diameter is straight less than sealing ball Footpath, anti-ejector sleeve inner tubal wall is provided with at least one elastic spacing block 72, and elastic spacing block is in sealing ball and anti-ejector sleeve inner tubal wall Between, the sealed ball of elastic spacing block compresses, and is arranged with the protection air bag 12 being in unaerated state, on air jet pipe with mobile jib Being provided with middle QI KOU 73, middle QI KOU is connected with protection air bag by intervalve 13.Elastic spacing block can be block rubber or by Other elastomeric material is made.Elastic spacing block for temporary spacing seal ball, ensure at ordinary times sealing ball will not in anti-ejector sleeve with Meaning is mobile.As it was previously stated, it is the most important and need equipment to be protected or knot to arrange transformator, fibre-optical splice etc. in electric power box Structure, if it is toppled over together along with mobile jib body, directly fall on roof, relatively big owing to clashing into, the equipment being easily caused in electric power box And structural failure, thus increase maintenance cost, even result in and cannot recycle.Additionally, roof has height unlike ground Intensity, mobile jib body, electric power box clash into roof the most energetically to easily cause roof structure impaired, or cause structural failure within doors (as ceiling structure within doors, dope layer etc. can be destroyed because of vibrations).In this programme, after gas generator is detonated, wink Between produce a large amount of gas, gas is discharged to air jet pipe outer end by air jet pipe is inner, promotes sealing ball to move towards sealing tube simultaneously, Until sealing ball is stuck in sealing tube, and seal sealing tube.Before sealing ball sealing lives sealing tube, gas can be through anti-ejector sleeve, envelope Mouth pipe is ejected to the external world, and during this, mobile jib body can be pushed away in roof expanse by the produced huge propulsive thrust of gas injection Dynamic so that mobile jib body reaches the state tilted towards roof.After sealing ball sealing lives sealing tube, gases at high pressure enter in a large number Protection air bag, protection air bag is heaved, immediately such that it is able to buffer when the structures such as mobile jib body are fallen down to roof, it is to avoid mobile jib When the structures such as body are fallen down, roof is impacted excessive, and reduce owing to mobile jib body clashes into, electric power box is also played protection.Protection gas Capsule can wrap in outside the structures such as mobile jib body, electric power box, and concrete shape and covering position can be designed according to the actual requirements.Example As, can be very big, consequently, it is possible to mobile jib body falls down together with electric power box with the width (radial dimension) after design protection airbag aeration After, electric power box is just difficult to directly impinge roof.It is emphasized that the purpose that anti-ejector sleeve and sealing tube are set, it is simply that both profits Carrying out jet by gas generator, promote mobile jib body, protection air bag is filled by the gas simultaneously utilizing gas generator to produce Gas.If being not provided with anti-ejector sleeve and sealing tube structure, then, mobile jib body, protection air bag can be considered as one " overall structure ", gas The propulsive thrust that the thrust (thrust of gas injection direction) that injection is caused and gas injection are caused is (with gas injection direction phase Anti-thrust) can cancel out each other, be equivalent to that mobile jib body is not had impetus, the most just cannot realize mobile jib body Promoting, and had anti-ejector sleeve and sealing tube, when sealing ball can be allowed to be in anti-ejector sleeve, gas still can discharge the external world, from And ensure have the mobile jib body power that inwardly (in roof) promotes, and can automatically seal sealing tube subsequently, with to protection gas Capsule is inflated.

Described intervalve is provided with the diaphragm to be crushed 131 blocking intervalve, and sealing ball is in middle QI KOU and sends out with gas Between raw device.Diaphragm to be crushed can prevent extraneous air, water from entering protection air bag by intervalve at ordinary times, and when gas occurs After device detonates, produce a large amount of gas, there is the biggest air pressure, diaphragm to be crushed can be broken through, and protection air bag is carried out quickly Inflation.

Described electric power box is provided with at least one and hangs drag-line 8, hangs drag-line one end and is connected with base, hangs the drag-line other end and electricity Power case connects.When electric power box ruptures with mobile jib body junction, when electric power box individually departs from mobile jib body, hang drag-line and can hold electric power Case, it is to avoid it drops from roof, thus electric power box is not to drop on roof, it is simply that hung drag-line and hang, be in suspension status, Can ensure safety.

Claims

1. a power tower, is characterized in that, the electric power box that including the mobile jib body being vertically arranged, is fixed on end with mobile jib and for The base fixing with roof, described mobile jib body lower end fixes with base, and electric power box is provided with dash overhead guard, dash overhead guard and electric power Connected by some cover bars between case, formed headroom between dash overhead guard and electric power box top, if electric power box top is provided with Doing and cross the top louvre that headroom connects, being provided with some threading holes bottom electric power box, electric power box is provided with some vent stacks, Vent stack upper end is internal with electric power box to be connected, and vent stack is provided with ventilation transverse tube, under ventilation transverse tube the inner and vent stack End connection, vent stack is fixed on bottom electric power box, crosses in headroom and is provided with some aerofluxus battens, and aerofluxus batten is inner and neighbouring A cover bar hinged, dash overhead guard is provided with some with aerofluxus batten returning spring one to one, the upper end of returning spring Being connected with dash overhead guard, aerofluxus batten outer end connects with the lower end of corresponding returning spring.

A kind of power tower the most according to claim 1, is characterized in that, described ventilation transverse tube axis and mobile jib body axis phase Handing over, any one ventilation transverse tube the inner is between this ventilation transverse tube outer end and mobile jib body.

A kind of power tower the most according to claim 1, is characterized in that, also include the shake-up cylinder fixing with roof, touch cylinder Top is provided with hole of reeving, and touches cylinder inner bottom part and is provided with and touches the shake-up piston that cylinder is slidably connected, and touches the slidably side of piston To for above-below direction, with mobile jib, it is provided with shake-up drag-line, touches drag-line one end and connect mobile jib body, touch the drag-line other end and connect and touch Dynamic piston, touches drag-line and reeves hole, touch cylinder inner top and be provided with pressure transducer, touches piston and is provided with and presses for pushing up pressure The shake-up pressure head of force transducer, touches cylinder and is provided with the ECU that detonates being connected with pressure transducer, be provided with and detonate with mobile jib The gas generator that ECU connects.

A kind of power tower the most according to claim 3, is characterized in that, be provided with at least vertical layout in described shake-up cylinder Limit spring, limit spring upper end connect touch cylinder inner roof wall, limit spring lower end connect touch piston-top surface.

A kind of power tower the most according to claim 3, is characterized in that, also include the rope winding wheel carrier fixing with roof, pulley Frame is provided with rope winding pulley, rope winding pulley with touch cylinder office in the opposite sides of mobile jib body, be provided with auxiliary drag-line with mobile jib, auxiliary Drag-line is reeved hole, and auxiliary drag-line one end connects mobile jib body, and the auxiliary drag-line other end connects and touches piston, and auxiliary guy cable rounds rope winding is sliding Wheel.

6., according to a kind of power tower described in claim 3 or 4 or 5, it is characterized in that, with described mobile jib, be provided with air jet pipe, spray Trachea axis horizontal and air jet pipe the inner are connected with mobile jib body, and gas generator is in air jet pipe, the gas of gas generator Release direction is inner to air jet pipe outer end by air jet pipe.

A kind of power tower the most according to claim 6, is characterized in that, described air jet pipe is by the anti-ejector sleeve interconnected and envelope Mouth pipe is constituted, and anti-ejector sleeve is between sealing tube and mobile jib body, is provided with sealing ball in anti-ejector sleeve, and sealing bulb diameter is less than anti-ejector sleeve Internal diameter, sealing tube internal diameter extremely successively decreases away from anti-ejector sleeve direction along near anti-ejector sleeve, sealing tube maximum inner diameter and anti-ejector sleeve internal diameter Unanimously, sealing tube minimum diameter is less than sealing bulb diameter, and anti-ejector sleeve inner tubal wall is provided with at least one elastic spacing block, elastic limit Position block is between sealing ball and anti-ejector sleeve inner tubal wall, and the sealed ball of elastic spacing block compresses, and is arranged with and is in not with mobile jib The protection air bag of inflated condition, air jet pipe is provided with middle QI KOU, and middle QI KOU is connected with protection air bag by intervalve.

A kind of power tower the most according to claim 7, is characterized in that, described intervalve be provided with block intervalve wait press Rupture of membranes sheet, sealing ball is between middle QI KOU and gas generator.

A kind of power tower the most according to claim 1 and 2, is characterized in that, described electric power box is provided with at least one and hangs and draw Rope, hangs drag-line one end and is connected with base, hangs the drag-line other end and is connected with electric power box.