阅读说明：本技术 一种钢结构抗风塔式跳伞训练装置 (Steel construction wind-resistant tower type parachuting training device ) 是由 许多 许木子 于 2020-05-11 设计创作，主要内容包括：本发明涉及一种钢结构抗风塔式跳伞训练装置,包括主塔,及至少一个与主塔侧边联接的塔臂,主塔和塔臂均为框形钢结构；塔臂平衡分布于主塔的外围；还包括设于塔臂上的牵引机构,牵引机构设置在塔臂前端；牵引机构包括牵引绳,牵引绳直接垂直向下引出。本发明的主塔和塔臂均采用钢结构,具有强度高,抗风性能好的特点。塔臂与主塔之间采用铰链联接方式,在恶劣的天气时,可以把塔臂放下至地面,以降低恶劣天气对主塔和塔臂的结构造成破坏性影响。将牵引机构直接设于塔臂前端,省去了滑轮等结构,安全无事故。设有旋转部延展了跳伞塔的气候适应性和跳伞的安全性。设有的吹风机可避免碰撞事故。设有的应急救援绳包在发生故障时可建立紧急救援通道。(The invention relates to a steel structure wind-resistant tower type parachuting training device, which comprises a main tower and at least one tower arm connected with the side edge of the main tower, wherein the main tower and the tower arm are both in a frame-shaped steel structure; the tower arms are distributed on the periphery of the main tower in a balanced manner; the traction mechanism is arranged at the front end of the tower arm; the traction mechanism comprises a traction rope, and the traction rope is directly led out vertically and downwards. The main tower and the tower arms of the invention are both made of steel structures, and have the characteristics of high strength and good wind resistance. Adopt the hinge hookup mode between tower arm and the main tower, when bad weather, can put down the tower arm to ground to reduce bad weather and cause destructive influence to the structure of main tower and tower arm. The traction mechanism is directly arranged at the front end of the tower arm, so that structures such as pulleys are omitted, and the safety and the accident are avoided. The provision of the rotating portion extends the weather adaptability of the parachute tower and the safety of the parachute. The arranged blower can avoid collision accidents. An emergency rescue rope bag is arranged to establish an emergency rescue channel when a fault occurs.)

1. A steel structure wind-resistant tower type parachuting training device comprises a main tower and at least one tower arm connected with the side edge of the main tower, and is characterized in that the main tower and the tower arm are both in frame-shaped steel structures; the tower arms are distributed on the periphery of the main tower in a balanced manner; the traction mechanism is arranged at the front end of the tower arm; the traction mechanism comprises a traction rope, and the traction rope is directly led out vertically and downwards.

2. The wind-resistant tower-type parachuting training device of a steel structure as claimed in claim 1, wherein the rear end of the tower arm is hinged with the main tower; the tower crane further comprises a pull rod fixedly connected between the upper side of the tower arm and the main tower, and a hoisting power device arranged on the main tower and used for enabling the tower arm to be pitched to the ground or be hoisted to an installation position.

3. The wind-resistant tower-type parachuting training device with the steel structure as claimed in claim 2, wherein the traction mechanism further comprises a traction base fixedly connected with the front end of the tower arm, a traction motor fixed on the traction base, and a traction drum in transmission connection with the traction motor; the traction rope is wound around the traction drum.

4. The wind-resistant tower-type parachuting training device of a steel structure as claimed in claim 1, further comprising a rotating part arranged between the tower arm and the main tower, and a rotating power mechanism for driving the tower arm to horizontally rotate to a required orientation.

5. The steel structure wind-resistant tower-type parachuting training device as claimed in claim 1, 2, 3 or 4, wherein the side of the main tower is further provided with a blower, the wind direction of which corresponds to the extending direction of the tower arm, and when the distance between the parachute for landing and the main tower is smaller than a set distance, the blower works to provide wind power far away from the main tower for the parachute for landing.

6. The steel structure wind-resistant tower-type parachuting training device of claim 1, 2, 3 or 4, further comprising a safety rope bag arranged in front of the tower arm and a falling control mechanism for controlling the safety rope bag to be opened, wherein when the falling control mechanism works, the falling safety rope forms a rescue cableway in emergency.

7. The tower parachuting training device of steel construction wind resistance of claim 3, wherein the extension end of the hauling cable is further provided with an umbrella supporting ring, the hauling cable is one of the following structures:

structure A: the two traction ropes synchronously and directly extend downwards from one traction drum or two traction drums vertically and fixedly connected with the umbrella supporting ring;

the structure B is as follows: the traction rope is one and is rotatably connected with the umbrella opening ring.

8. The wind-resistant tower-type parachuting training device of a steel structure of claim 7, wherein the periphery of the umbrella supporting ring is provided with a plurality of upper connecting pieces, and the upper connecting pieces comprise friction connecting pieces and/or elastic connecting pieces which are separated by gravity.

9. The steel structure wind-resistant tower-type parachuting training device of claim 8, further comprising an umbrella for training, which comprises an umbrella cover, a shoulder strap, an umbrella rope for connecting the umbrella cover and the shoulder strap, and a lower connecting piece connected with the upper connecting piece of the umbrella supporting ring; the umbrella is characterized by further comprising an umbrella top connecting quick-release section, the lower end of the umbrella top connecting quick-release section is fixedly connected with the strap, the upper end of the umbrella top connecting quick-release section is connected with the extension end of the traction rope, and the umbrella top connecting quick-release section is further provided with a pull rope used for being quickly released from the extension end of the traction rope.

10. The wind-resistant tower-type parachuting training device with the steel structure as claimed in claim 9, wherein the umbrella top connection quick release section is a connecting rope with two ends quickly connected, one end of the connecting rope is provided with a fixing hole, and the other end of the connecting rope is detachably fixed in the fixing hole through a locking release pin, so that the umbrella and the traction rope are separated or connected; one end of the locking release pin is connected with the pull rope; one end of the connecting rope, which is provided with the fixing hole, is also provided with a locking piece which plays a role in locking the locking release pin and an unlocking source which drives the locking piece to move; the unlocking source is a manual operation source or an electric control source; when an electric control source is adopted, one end of the connecting rope, provided with the fixing hole, is fixedly connected with the traction rope, and the electric control source is connected with a control circuit.

Technical Field

The invention relates to a parachuting training device, in particular to a steel structure wind-resistant tower type parachuting training device.

Background

In the fifth and sixty years of the last century in China, parachuting sports of parachuting over an umbrella tower appear for airborne troops, and parachuting training is carried out on the airborne troops.

With the improvement of living standard of people, people increasingly pursue quality of life and begin to enthusiastic various space sports such as bungees, roller coasters and the like. It also has the parachute driven by the glider on the land and the yacht on the sea. The parachute tower parachuting motion appeared in the last century does not appear in recent years, and has a plurality of reasons, on one hand, the original structure is old, the construction cost is high, the construction period is long, on the other hand, the maintenance is inconvenient, and the wind resistance is poor. For the training of parachuting, some patents have been filed, for example, chinese patent document No. CN107638637A entitled high mountain steel rope mode low-altitude safety parachuting equipment system, which discloses a technical solution using a steel rope installed between high mountains as a supporting point. When the technical scheme is implemented, the method is very dependent on the terrain, and the manufacturing and installation cost is not low.

In order to meet increasingly diversified sports requirements of people and provide more people with airborne experience for the country for preparing for wartime needs, the inventor innovatively designs a steel structure wind-resistant tower type parachuting training device.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a steel structure wind-resistant tower type parachuting training device.

The purpose of the invention can be realized by the following technical scheme:

a steel structure wind-resistant tower type parachuting training device comprises a main tower and at least one tower arm connected with the side edge of the main tower, wherein the main tower and the tower arm are both in a frame-shaped steel structure; the tower arms are distributed on the periphery of the main tower in a balanced manner; the traction mechanism is arranged at the front end of the tower arm; the traction mechanism comprises a traction rope, and the traction rope is directly led out vertically and downwards.

The further technical scheme is as follows: the rear end of the tower arm is hinged with the main tower; the tower crane further comprises a pull rod fixedly connected between the upper side of the tower arm and the main tower, and a hoisting power device arranged on the main tower and used for enabling the tower arm to be pitched to the ground or be hoisted to an installation position.

The further technical scheme is as follows: the traction mechanism also comprises a traction base fixedly connected with the front end of the tower arm, a traction motor fixed on the traction base and a traction drum in transmission connection with the traction motor; the traction rope is wound around the traction drum.

The further technical scheme is as follows: the tower crane further comprises a rotating part arranged between the tower arm and the main tower, and a rotating power mechanism used for driving the tower arm to horizontally rotate to the required orientation.

The further technical scheme is as follows: the side of the main tower is also provided with a blower, the wind direction of which corresponds to the extending direction of the tower arms, and when the distance between the parachute kit for landing and the main tower is less than the set distance, the blower works to provide wind power far away from the main tower for the parachute kit for landing.

The further technical scheme is as follows: the emergency rescue cableway is characterized by further comprising a safety rope bag arranged on the front portion of the tower arm and a falling control mechanism used for controlling the safety rope bag to be opened, and when the falling control mechanism works, the falling and drooping safety rope forms an emergency rescue cableway.

The further technical scheme is as follows: the extension end of haulage rope still is equipped with and props the umbrella circle, the haulage rope is one of following structure:

structure A: the two traction ropes synchronously and directly extend downwards from one traction drum or two traction drums vertically and fixedly connected with the umbrella supporting ring;

the structure B is as follows: the traction rope is one and is rotatably connected with the umbrella opening ring.

The further technical scheme is as follows: the periphery of the umbrella supporting ring is provided with a plurality of upper connecting pieces, and the upper connecting pieces comprise friction connecting pieces and/or elastic connecting pieces to be separated by gravity.

The further technical scheme is as follows: the umbrella comprises an umbrella cover, a shoulder strap, an umbrella rope for connecting the umbrella cover and the shoulder strap, and a lower connecting piece connected with an upper connecting piece of an umbrella supporting ring; the umbrella is characterized by further comprising an umbrella top connecting quick-release section, the lower end of the umbrella top connecting quick-release section is fixedly connected with the strap, the upper end of the umbrella top connecting quick-release section is connected with the extension end of the traction rope, and the umbrella top connecting quick-release section is further provided with a pull rope used for being quickly released from the extension end of the traction rope.

The further technical scheme is as follows: the umbrella top connecting quick release section is a connecting rope with two ends quickly connected, one end of the connecting rope is provided with a fixing hole, and the other end of the connecting rope is detachably fixed in the fixing hole through a locking release pin so as to realize the separation or connection of the umbrella and the traction rope; one end of the locking release pin is connected with the pull rope; one end of the connecting rope, which is provided with the fixing hole, is also provided with a locking piece which plays a role in locking the locking release pin and an unlocking source which drives the locking piece to move; the unlocking source is a manual operation source or an electric control source; when an electric control source is adopted, one end of the connecting rope, provided with the fixing hole, is fixedly connected with the traction rope, and the electric control source is connected with a control circuit.

Compared with the prior art, the invention has the beneficial effects that: the main tower and the tower arms are both made of steel structures, and the tower has the characteristics of high strength and good wind resistance. Adopt the hinge hookup mode between tower arm and the main tower, when bad weather, can put down the tower arm to ground in short time through the mode of mechanical dismouting to reduce bad weather and cause destructive influence to the structure of main tower and tower arm. The traction mechanism is directly arranged at the front end of the tower arm, the length of a traction rope can be saved, a balancing weight and a pulley can be omitted, and the risk of a parachute jumping person is reduced. Be equipped with the rotating part between tower arm and the main tower for the tower arm can carry out the rotation of horizontal direction for the main tower, the implementation structure of two tower arms of ten minutes is fit for, can be when typhoon weather, with the direction rotation of tower arm to with the parallel position of typhoon direction, also can increase rotation function when the parachuting is practised, with the degree of difficulty when increasing the parachuting, increase parachutist's motion experience. The side of the main tower is also provided with a blower with the wind direction corresponding to the extending direction of the tower arm, so that a parachutist is prevented from approaching the main tower when landing, and the safety factor is improved.

The invention is further described below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of a first embodiment of a steel structure wind-resistant tower parachuting training device of the present invention (two tower arms are in an upward state);

FIG. 2 is a schematic view of a first embodiment of the steel structure wind-resistant tower parachuting training device of the present invention (two tower arms are in a horizontal state);

FIG. 3 is a schematic view of a first embodiment of the steel structure wind-resistant tower parachuting training device of the present invention (two tower arms are in a downward state);

FIG. 4 is a schematic view of a first embodiment of the steel structure wind-resistant tower parachuting training device of the present invention (the left side includes a partially enlarged view of the front end of the tower arm, and the right traction rope is lowered to the lowermost end);

FIG. 5 is a schematic view of a working process of a first embodiment of the steel structure wind-resistant tower parachuting training device of the present invention (the left side is in a lifting process, and the right side is in a falling process);

FIG. 6 is a schematic view of a second embodiment of the steel structure wind-resistant tower-type parachuting training device of the present invention (the left side has a safety rope ascending process, and the right side is in a descending process);

FIG. 7 is a schematic view of an embodiment of a top connection quick disconnect employed in the present invention (part a is a schematic view of parts, part b is an assembled state, and part c is a left view of part b);

FIG. 8 is a schematic view of a particular embodiment of a traction mechanism (one drum, two rope configuration) employed in the present invention;

FIG. 9 is a schematic view of yet another embodiment of a traction mechanism (twin drum twin rope configuration) for use with the present invention;

FIG. 10 is a schematic view of the umbrella and the umbrella support ring of the present invention in a coupled state;

FIG. 11 is a schematic view of an embodiment of an upper attachment for an umbrella support ring used in the present invention;

FIG. 12 is a schematic view of the umbrella of the present invention in a state disengaged from the umbrella support ring;

FIG. 12A is a schematic view of the umbrella ring and umbrella of the embodiment of FIG. 6;

FIG. 13 is a schematic structural view of a third embodiment of a steel structure wind-resistant tower type parachuting training device of the present invention;

FIG. 13A is an enlarged partial view of the umbrella crown linking and disjointing portion of the embodiment of FIG. 13;

FIG. 14 is an enlarged view of a portion of the rotating portion of the embodiment of FIG. 13;

FIG. 15 is an enlarged fragmentary view of the portion of the hoisting power unit of the embodiment of FIG. 13;

FIG. 16 is a schematic structural view of the traction mechanism in the embodiment of FIG. 13;

FIG. 17 is an enlarged view of portion A of FIG. 16;

FIG. 18 is a schematic view of an electronic control system for the traction mechanism in the embodiment of FIG. 13;

FIG. 19 is a schematic structural view of a main tower (with a rotating part and a lifting blower) of a fourth embodiment of the steel structure wind-resistant tower type parachuting training device of the present invention;

fig. 20 is a partially enlarged view of the rotation portion of fig. 19.

Reference numerals of fig. 1 to 12A

10 main tower

20 tower arm 29 draw bar

30 traction mechanism 39 traction drum

40 prop parachute ring 411 friction connector

412 elastic connecting piece 41 upper connecting piece

18 blower 50 umbrella

51 canopy 52 cord

53 lower connecting piece 6 umbrella top connecting ring

71 fixed end

72 Movable open end 73 safety pin

70 umbrella top connection quick-release joint (continuous release joint)

8 hauling rope 99 safety rope

9 stay cord 91 bearing rope

Reference numerals of fig. 13 to 20

101 upper part 10 main tower

20 tower arm 30 traction mechanism

31 traction rope 331 traction drum brake disc

33 traction drum 351 overload control circuit

352 height limiting circuit 353 control panel

35 controller 371 brake block

372 brake lever 373 brake electromagnet

37 brake mechanism 381 shaft coupling

38 traction motor 390 traction slot

391 seat 39 tractor base

419 umbrella top connecting ring 41 umbrella

42 prop umbrella ring 70 umbrella top and connect the fast-disengaging section

71 quick coupling seat 72 locking release pin

75 quick-release connecting belt 77 locking piece

781 pull rope connecting belt 790 fixed hole

78 draw rope 79 connecting rope

8 hoist power device 811 slide rail

81 hoisting motor 827 steel cable

828 reel 829 motor

82 hoisting shaft 83 hoisting steel cable

841 lower fixed part 8421 internal gear

842 movable part 843 axial roller

844 radial roller 84 rotating portion

851 external gear 85 rotating electric machine

87 slide rail support 88 ring slide rail

90 pull rod 74 load-bearing rope

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.

As shown in fig. 1 to 5, a first embodiment of the steel structure wind-resistant tower type parachuting training device of the present invention includes a main tower 10, and two tower arms 20 connected to the side edges of the main tower 10, wherein the main tower 10 and the tower arms 20 are both frame-shaped steel structures; the tower arms 20 are distributed on the periphery of the main tower 10 in a balanced manner; the tower crane further comprises a traction mechanism 30 arranged on the tower arm 20, and the traction mechanism 30 is arranged at the front end of the tower arm; the traction mechanism 30 comprises a traction rope 8, and the traction rope 8 is directly led out vertically downwards.

The rear end of the tower arm 20 is hinged with the main tower 10; a drawbar 29 for fixed coupling between the upper side of the tower arm and the main tower, and a hoisting power unit (not shown) provided on the main tower 10 for lowering the tower arm 20 to the ground or raising it to an installation position.

The traction mechanism 30 further comprises a traction base fixedly connected with the front end of the tower arm, a traction motor fixed on the traction base, and a traction drum 39 in transmission connection with the traction motor; the traction ropes 8 are looped around the traction drum 39.

The side of the main tower 10 is also provided with a blower 18 with the wind direction corresponding to the extending direction of the tower arm, when the distance between the parachute and the main tower is less than the set distance, the blower 18 works to provide wind power far away from the main tower for the parachute.

As shown in fig. 6, the second embodiment further includes a safety rope bag disposed at the front portion of the tower arm 20, and a falling-off control mechanism for controlling the safety rope bag to open, wherein when the falling-off control mechanism works, the falling-off and drooping safety rope 99 forms a rescue cableway in emergency. When the parachute jumping quick-release fault cannot be separated from the parachute jumping quick-release fault and the traction system fault cannot be transferred, the rope in the rescue rope bag is controlled manually to fall off, one end of the rope is fixed to the tower arm along with the bag, the other end of the rope falls to the ground, the rescue worker climbs to the trapped person along the rope, the trapped person is fixed to the rescue rope, the parachute rope is removed, and then the trapped person is led to fall to the ground.

As shown in fig. 8, the extending end of the pulling rope 8 is further provided with an umbrella supporting ring 40, and two pulling ropes 8 are synchronously, directly, vertically and downwards extended from a pulling drum 39 and fixedly connected with the umbrella supporting ring 40. In order to facilitate the installation of the connection, a connecting element 80 is provided at the end of the pulling rope 8.

As shown in fig. 9, two pulling ropes 8 are synchronously and directly vertically extended downwards from the two pulling drums 39 and fixedly connected with the umbrella supporting ring 40.

As shown in fig. 10, the umbrella ring 40 is provided at the outer circumference thereof with a plurality of upper coupling members 41, and the upper coupling members 41 include a frictional coupling member 411 (also called a clip) and an elastic coupling member 412 (also called a gravity hook) to be disengaged by gravity. Wherein the force of gravity required to disengage the frictional connection 411 is less than the force of gravity required to disengage the resilient connection 412, the former being about half of the latter.

As shown in fig. 10 to 12A, the umbrella 50 for training is further provided, which comprises an umbrella cover 51, a shoulder strap 500, an umbrella rope 52 for connecting the umbrella cover 51 and the shoulder strap, and a lower connecting piece 53 connected with the upper connecting piece 41 of the umbrella support ring 40; the umbrella is characterized by further comprising an umbrella top connecting quick release section 70, the lower end of the umbrella top connecting quick release section 70 is fixedly connected with the strap through a bearing rope, the upper end of the umbrella top connecting quick release section 70 is connected with the extension end of the traction rope, and the umbrella top connecting quick release section 70 is further provided with a pull rope used for being quickly released from the extension end of the traction rope. The top of the canopy 51 is also provided with a canopy connecting ring 6, the center of which is provided with a through hole for passing through the bearing rope and the pull rope of the quick release joint and discharging air when descending.

The umbrella top is connected with a quick release section 70 (the quick release section is also called a connecting release section, and the specific structure is shown in fig. 7), the connecting release section 70 comprises a fixed end 71 (provided with a fixed hole for inserting a safety pin) fixedly connected with the upper end of the bearing rope 91 and the umbrella top connecting ring 6, a movable open end 72 for fixing with the traction rope 8, and a pull rope 9 connected with the safety pin 73 of the fixed end 71; the lower end of the pull rope 9 extends to a position close to the shoulder strap, when the parachute is parachuted by the parachute tower, when the traction parachute rises to a specified height, the direction of the parachutist is confirmed to be correct, and the parachutist is instructed to pull the pull rope 9 to separate the connecting and disconnecting joint 70 from the pull rope 8. In the embodiment of fig. 7, two ropes connected in series are used to form the quick-connection connecting rope, in other embodiments, only one rope or three ropes can be used, the larger the number of ropes, the less the stress of the safety pin, but the longer the disconnection time, which can be set according to the weight of the trainer, usually two ropes are the preferred embodiment.

In other embodiments, the weight of the person can be supported directly by the umbrella (also called a traction umbrella) without using a load-bearing rope. Or the umbrella supporting ring is not arranged, the traction rope is connected with an umbrella top connecting ring of the traction umbrella through a quick release joint, and the inner supporting type umbrella supporting ring is arranged on the inner side of the umbrella cover edge of the traction umbrella and ascends or descends together with the traction umbrella.

In other embodiments, the number of tower arms may be one or more than three. Or a door-shaped structure formed by one tower arm and two main towers.

Fig. 13 to 18 illustrate a third embodiment of the present invention. In this embodiment, there are one main tower 10 and two tower arms 20; the tower arms 20 are distributed on the periphery of the main tower 10 in a balanced manner; the main tower 10 and the tower arm 20 are both frame-shaped steel structures; the tower arm 20 is provided with a traction mechanism 30; the traction mechanism 30 draws the traction rope 31 downward to connect the umbrella 41 and the umbrella support ring 42. The rear end of the tower arm 20 is hinged with the main tower 10; further comprises a pull rod 90 for fixedly coupling between the upper side of the tower arm 20 and the main tower 10 (the main tower is further provided with a section of upper part 101 above the hinge for mounting the pull rod and the hoisting power device), and a hoisting power device 80 arranged at the upper end of the main tower for pitching the tower arm down to the ground or up to the mounting position. The tower arm 20 is at a fixed mounting position (the raising angle can be set as required to adjust the parachute jumping height) when in use; the hoisting power devices 80 are two in number, and may specifically include a hoisting motor 81, a hoisting shaft 82 in transmission connection with the hoisting motor, and a hoisting cable 83 wound around the hoisting shaft. The outer end of the hoisting cable is fixed at the position of the tower arm close to the front end. In the present embodiment, the length of the tower arm 20 is greater than the height from the ground installation position to the hinge of the main tower 10 and the tower arm 20, and in the present embodiment, the traction mechanism 30 is provided at the front end of the tower arm 20 to maximally utilize the height formed by the tower arm in the inclined direction. The hoisting power device 80 has the hoisting cable in a locked state in a state that the tower arm is fixed, and can play a role in safety protection of the second layer, namely, the situation that the pull rod is broken, and the hoisting cable can play a role in pulling the tower arm.

The tower crane further comprises a rotating part 84 arranged between the tower arm 20 and the main tower 10, and a rotating power mechanism for driving the tower arm to horizontally rotate to a required orientation, wherein the rotating power mechanism comprises a rotating motor 85 and an outer gear 851 in transmission connection with the rotating motor.

As shown in fig. 14, the rotating portion 84 includes a lower fixing portion 841 and an upper movable portion 842, and an axial roller 843 for axial support and a radial roller 844 for radial limitation, which are disposed between the lower fixing portion 841 and the upper movable portion 842; the tower arms 20 are fixed to the sides of the upper movable portion. The upper movable portion 842 is provided with an internal gear 8421 corresponding to the external gear 851. The rotation of the rotating electric machine 85 rotates the upper movable portion 842 (i.e., rotates the tower arm) by the external gear 851 and the internal gear 8421. The upper part 101 of the main tower 10 is mainly used for fixing the pull rod 90 and the hoisting power device 80, and the structure of the upper part can be the same as or smaller than the main structure of the lower part so as to reduce wind resistance.

As shown in fig. 13A, the umbrella top connection quick release joint 70 adopts a connection rope 79 (in this embodiment, a two-stage connection rope is used for saving more labor) with two ends connected quickly, one end is provided with a quick connection seat 71, the quick connection seat 71 is provided with a fixing hole 790, the other end is fixed in the fixing hole 790 through a locking release pin 72, and one end of the locking release pin 72 is connected with a pull rope 78; the quick coupling seat 71 is provided with a locking member 77 for locking the locking release pin 72 and an unlocking member (not shown) for driving the locking member to move. The quick coupling seat 71 is connected with the shoulder strap of the umbrella through the bearing rope 74, connected with the umbrella top connecting ring 419 through the quick-release connecting belt 75 and connected with the upper end of the pulling rope 78 through the pulling rope connecting belt 781, so that the pulling rope 78 can still keep the upper position without falling after pulling out the locking release pin 72. Wherein, the locking release pin can be a manual moving member or an electric control moving member. The unlocking piece can adopt a manual piece (a manual rotating piece or a manual moving piece) or an electric control piece (such as a motor or an electromagnet) connected with the control circuit. When an electric control component such as a motor or an electromagnet is adopted, the electric control component is connected with a control circuit, and the electric control component also comprises a sensing component connected with the control circuit, wherein the sensing component can be one of the following three structures:

A. when the parachute jumping person and the parachute kit are pulled to the highest point together, the parachute jumping person can unlock the parachute only through manual operation;

B. the height sensor arranged in the quick connecting seat can intelligently detect the height of a parachutist, and the parachute can be unlocked only when the parachute arrives at a specified height, and an indicator light or a voice prompt can be further added to prompt the parachutist that the parachute has arrived at the highest position and is in a safe state;

C. the manager judges whether the parachutist is ready or not through video acquisition, the acquired images are various and at least comprise facial expressions of the parachutist, the state of TA (timing advance) including voice conversation and the like is seen, and after all OK, the manager outputs unlocking information and the parachutist can pull the pull rope.

Of the above three structures, A, B can be used alone in combination with C to further increase the safety factor. When electrical controls are used, the weight increases, and for safety reasons it is preferable to fix the quick coupling (i.e. the part containing the electrical control element) directly to the pull-cord (not falling with the umbrella). When the locking release pin also adopts the electronic control moving part, the pull rope can not be adopted for acting. In the concrete implementation in-process, for there being experience and feel, and have higher factor of safety, the unblock piece that preferred electrical control spare was made (the effect that plays safety inspection), the locking release pin that manual moving member made (training person is in person's operation, has experience and feels).

As shown in fig. 16 to 18, a specific structure of a traction mechanism according to a third embodiment of the present invention is shown. The traction mechanism 30 further comprises a traction base 39 fixedly connected with the front end of the tower arm 20, a traction motor 38 fixed on the traction base 39, and a traction drum 33 in transmission connection with the traction motor 38 through a coupler 381; the traction rope 31 is looped around a traction drum 33. The traction drum 33 is fixed by bearings to two supports 391 provided on the traction base 39. One of the supports is provided with a brake mechanism 37, which comprises a brake pad 371 corresponding to the brake disc 331 of the traction drum, a brake lever 372 for fixing the brake pad 371, and a brake electromagnet 373 (receiving a control signal of the controller, or using a motor as a brake power element) arranged at the other end of the brake lever 372. In other embodiments, the brake mechanism may be a conventional band-type brake.

In order to increase the safety factor, the brake mechanism can be optimized into a brake mechanism with a locking function, a protrusion and a groove are arranged between a brake disc of the traction drum and a brake pad, when the traction motor does not work, the brake mechanism is under the acting force of an elastic element (such as a spring), the traction drum is in a locking state, and when the traction motor needs to work, power is supplied to a brake power element simultaneously, so that the brake pad is separated from the brake disc of the traction drum.

FIG. 18 is a circuit block diagram of electrical control aspects of the traction mechanism of FIG. 15; the traction mechanism 30 is further provided with a controller 35 electrically connected with the traction motor 38, and an overload control circuit 351, a height limiting circuit 352 and a brake mechanism 37 electrically connected with the controller 35; a control panel 353, either wirelessly or wired to the controller 35, is also included to control the operation of the traction motors. The overload control circuit is realized by a torque sensor, and the torque sensor can be arranged at the position of the coupler. The height limiting circuit can be realized by a travel switch which is arranged on the traction base 39 and is close to the traction groove 390, when the traction rope is upwards retracted to be close to the tail end, a separation blade is fixed on the traction rope, and the ascending separation blade triggers the travel switch to realize the limitation of the ascending height.

As in the fourth embodiment of fig. 19-20, both the swivel portion 84 and the blower 18 are provided, and the blower is of a lifting type construction. The difference with the implementation three lies in:

a slide rail bracket 87 fixed to the upper movable section 842 and extending downward along the side of the main tower 10; the slide rail 811 is fixed to the slide rail bracket 87; the lower end of the slide rail bracket 87 is movably connected with the outer side of the main tower 10 through an annular slide rail 88. Because the distance of up-down lifting is long, the lifting power mechanism preferably adopts a steel cable 827 (or a chain) as a transmission member, and a motor 829 and a scroll 828 are arranged at the upper end of the sliding rail, so as to provide transmission power (similar to the structure of a winch).

In the fourth embodiment, the blower is arranged on the side edge of the main tower, and wind power is used for driving the parachute close to the main tower away, so that the safety of the parachute is guaranteed. The sliding rails in the up-and-down direction are arranged, so that the air blower and the parachute can descend synchronously, the number of the air blowers is saved, and continuous wind power is provided for the parachute. The rotating part between tower arm and the main tower has increased rotatory function for the tower arm, provides a changeable training state for the parachutist more, can release the parachute kit in the rotation again for the training person when descending has outside centrifugal force, has reduced the parachute kit of descending and has been close to the possibility of main tower, has further guaranteed the security of parachute. When a pair of tower arms is adopted, the tower arms can be rotated to the position parallel to the wind direction to be parked when large wind force exists, so that the wind resistance is reduced, and the safety of the tower arms is improved. The sliding rail support synchronously rotating with the tower arm is adopted, so that the blower and the tower arm keep the same direction, and the air supply device provides outward wind power for parachute tools during rotation, thereby further ensuring the safety of parachutists.

As a more preferable embodiment, in order to safely place the pull rod in the process of ascending installation and descending placement of the tower arm, the structure is adopted:

the outer end of the pull rod is hinged with the upper side edge of the tower arm, the inner end of the pull rod is in sliding connection (or rolling connection) with the upper part side edge of the main tower, and ascending and descending power can be provided by a hoisting power device on the same side (a small scroll with smaller diameter is connected in series with an output shaft of a hoisting motor, and a small steel cable of the small scroll is connected with the inner end of the pull rod). The inner end of the pull rod also rises or falls simultaneously in the rising or falling process of the tower arm (the length of the pull rod must be larger than the connecting length of the tower arm, the connecting length of the tower arm refers to the distance from the hinged point of the tower arm and the main tower to the hinged point of the tower arm and the pull rod), and the pull rod is fixedly installed by using high-strength fasteners such as bolts and the like only when the pull rod is in a working state. The fixed installation of the inner end of the pull rod can be manually installed (manually operated by an operator climbing up), and can also be completed by an actuating element of an electric control system. For example, the sliding connection between the inner end of the pull rod and the side of the upper part of the main tower adopts a high-strength slide rail (or the rolling connection adopts a high-strength wheel rail), and when the tower arm needs to be lifted or lowered, the slide block (or the roller seat) arranged at the inner end of the pull rod provides lifting or lowering power through a small steel cable so as to freely move on the slide rail (or freely roll on the wheel rail). When the tower arm is raised to a specified height, the electric control type transverse lock pin arranged on the high-strength slide rail (or the high-strength wheel rail) loses power and extends into a lock hole (the lock hole can be one or more than two) arranged on the slide block (or the roller seat), and the fixed installation of the pull rod and the upper part of the main tower is completed. When the transverse locking pins are arranged at a plurality of positions, a plurality of uplifting angles of the tower arm can be set. For safe operation, before the electric control of the traction mechanism works, the parachute jumping training can be carried out by detecting the transverse locking pins, namely all the transverse locking pins are required to extend (namely, in a locking state), and the pull rod is in a fixed installation state to conduct the electric control circuit of the traction mechanism. All the lateral lock pins are in a locked state (extended state) in an unpowered state. When the tower arm is adjusted up and down, the electric circuit is detected firstly, and the parachute jumping training operation can be carried out only when the electric control circuit of the traction mechanism is in a power-off state (or called as a non-working state).

In conclusion, the main tower and the tower arms are made of steel structures, the main tower is lower, thinner and lighter, the tower arms are longer and higher, the height of the traction ring is increased by more than 10%, and the available height is increased to some extent; the tower arm amplitude is larger, the safety distance is increased by 300%, and the safety coefficient is obviously increased; the transparent windward area is small, the windward area is reduced by 90% at the same height, and the wind resistance is obviously improved; the weight is reduced by 95 percent, and the pressure on the base component is reduced; the frontal area is similar to that of the tower crane. The invention is not only different from the fixed tower arm of the traditional parachuting tower, but also completely different from the tower arm form of the existing tower crane, and has the innovation of the upward fixed installation of the tower arm, small windward area, high available height and light weight, and further improves the natural disaster capabilities of wind resistance, earthquake resistance and the like.

The invention is not only different from the traditional parachute tower traction device, but also completely different from the traditional tower crane traction device, compared with the two devices, the innovation is that the traction device is arranged at the front end of the tower arm, the traction rope is directly and vertically led out downwards from the winch, the traction ring counterweight is omitted, and the potential safety hazard of the traditional parachute tower is thoroughly eliminated; the traction rope is directly and vertically led out downwards from the winch, a pulley at the front end of the tower arm and a stabilizing device guided along the tower arm are omitted, and the potential safety hazard of the traditional parachute jumping tower is thoroughly eliminated. The traction windlasses of the traditional parachuting tower and the tower crane are both arranged in the main tower.

The invention is different from a tower crane in that any number of tower arms are arranged in a static balance way (when not working), so that the tower arms rotate more stably and safely, and the capability of resisting natural disasters is superior to that of the tower crane. The static balance device cannot be used as a crane.

The invention is different from the traditional parachute tower in that a rescue rope bag is fixedly arranged at the position close to the umbrella support and near the front end of the tower arm,

the tower crane is statically unbalanced in both horizontal fixed arm and luffing arm structures, the gravity moment on one side of the counterweight is far larger than that on one side of the jib (the difference is about 100 tons of meters), the purpose is to increase the lifting capacity, but the capability of resisting natural disasters such as typhoon, earthquake and the like is weak.

The invention is different from the traditional parachute jumping tower, and has the innovation that the main tower and the tower arms are all manufactured by adopting sectional assembly design, so that the disassembly, the assembly and the transportation are convenient. The mechanism is similar to a tower crane mechanism, but the mechanism cannot be used as a crane due to the adoption of the static balance arrangement.

Therefore, the invention has good market application prospect.

The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.