阅读说明：本技术 一种防野兽袭击的露天长椅 (Open bench capable of preventing wild animals from attacking ) 是由 高远 于 2020-12-20 设计创作，主要内容包括：本发明公开的一种防野兽袭击的露天长椅,包括支撑壳,所述支撑壳内设有设备腔,所述设备腔内含有展开机构,所述支撑壳下端设有弹簧支撑板,位于所述支撑壳左侧的所述弹簧支撑板上滑动设有左右对称的支撑脚,本发明结构简单,操作简便,本发明能够帮助人们防止被森林公园内的野兽从背后袭击,保护人们免收野生动物伤害,当有野兽从背后袭击座椅上的人时,本发明能够自动阻拦,并且在人们坐到椅子上之前能够惊吓走毒蛇等动物,当人们在附近被毒物或者野兽咬伤,可以到长椅处进行吸毒止血等紧急处理,具有较高的一体化程度。(The outdoor bench capable of preventing wild animals from attacking disclosed by the invention comprises a supporting shell, wherein an equipment cavity is arranged in the supporting shell, a unfolding mechanism is arranged in the equipment cavity, a spring supporting plate is arranged at the lower end of the supporting shell, and supporting legs which are bilaterally symmetrical are arranged on the spring supporting plate positioned on the left side of the supporting shell in a sliding manner.)

1. The utility model provides a prevent open-air bench that beast attacked, includes the support shell, its characterized in that: an equipment cavity is arranged in the supporting shell;

the equipment cavity is internally provided with an unfolding mechanism, the lower end of the supporting shell is provided with a spring supporting plate, the spring supporting plate positioned on the left side of the supporting shell is provided with bilaterally symmetrical supporting legs in a sliding manner, the upper end of the supporting shell is fixedly provided with a sliding plate which can slide in the supporting legs, a sliding rod which penetrates through the spring supporting plate and extends to the equipment cavity is fixedly arranged on the ground positioned on the lower side of the spring supporting plate, the sliding rod can slide in the spring supporting plate and the supporting shell, the sliding rod positioned in the equipment cavity is provided with a bearing sliding plate in a sliding manner, a spring is arranged between the bearing sliding plate and the sliding rod, the upper end of the bearing sliding plate is fixedly provided with a motor, the upper end of the motor is actively provided with a first rotating shaft, the first rotating shaft is fixedly provided with a first bevel gear, and the first, the support shell positioned on the lower side of the first bevel gear is rotatably provided with a screw shaft extending out of the support shell, the screw shaft positioned on the support shell is fixedly provided with a third bevel gear, the third bevel gear can be meshed with the first bevel gear, the support leg positioned on the left side of the screw shaft is provided with a nut sleeve, the nut sleeve can be meshed with the screw shaft, the rear end of the support leg is fixedly provided with a backrest support which is bilaterally symmetrical, the front end of the backrest support is provided with a telescopic backrest, the support shell positioned on the upper side of the second bevel gear is rotatably provided with a second rotating shaft extending out of the support shell, the second rotating shaft positioned in the support shell is fixedly provided with a fourth bevel gear, and the second bevel gear is meshed with the fourth bevel gear under a certain condition.

2. The open bench for protection against wild animal attack of claim 1, wherein: the supporting legs are provided with a back mechanism for preventing wild animals from attacking, a fifth bevel gear is fixedly arranged on the second rotating shaft outside the supporting shell, a third rotating shaft is rotatably arranged on the supporting shell at the rear side of the fifth bevel gear, a sixth bevel gear is fixedly arranged on the third rotating shaft, a first belt pulley is fixedly arranged on the third rotating shaft at the lower side of the sixth bevel gear, the sixth bevel gear can be meshed with the fifth bevel gear, the rear end of the backrest support is rotatably provided with a worm shaft, the lower end of the worm shaft is fixedly provided with a second belt pulley, a first belt is arranged between the left second belt pulley and the first belt pulley, a fourth rotating shaft is rotatably arranged on the backrest support at the left side of the worm shaft, the right end of the fourth rotating shaft is fixedly provided with a turbine, the turbine can be meshed with the worm shaft, and the left end of the fourth rotating shaft is fixedly provided with a seventh bevel gear, a fifth rotating shaft is rotatably arranged on the backrest support positioned on the left side of the seventh bevel gear, a first connecting rod is fixedly arranged on the fifth rotating shaft, an eighth bevel gear is fixedly arranged on the fifth rotating shaft positioned on the front side of the first connecting rod and can be meshed with the seventh bevel gear, a fixed shaft is fixedly arranged at the lower end of the first connecting rod, a blocking net roller is rotatably arranged on the fixed shaft, a torsion spring is arranged between the blocking net roller and the fixed shaft, a spring induction plate is arranged on the ground positioned on the rear side of the supporting legs, a second connecting rod is fixedly arranged at the lower end of the spring induction plate, a first sliding shaft is fixedly arranged at the lower end of the second connecting rod, a sixth rotating shaft is rotatably arranged on the sixth rotating shaft positioned on the right side of the first sliding shaft, a third connecting rod is fixedly arranged on the sixth rotating shaft, and the first sliding shaft can slide at the left end of the third connecting rod, the ground on the right side of the sixth rotating shaft is provided with a fourth connecting rod extending to the equipment cavity in a sliding mode, the lower end of the fourth connecting rod is classical and provided with a second sliding shaft, the second sliding shaft can slide at the right end of the third connecting rod, and under a certain condition, the fourth connecting rod can be abutted to the bearing sliding plate.

3. The open bench for protection against wild animal attack of claim 1, wherein: the supporting shell positioned on the right side of the second bevel gear is provided with a shaft sleeve in a sliding manner, the shaft sleeve is rotatably provided with a first emergency rotating shaft penetrating through the shaft sleeve, the first emergency rotating shaft positioned in the equipment cavity is fixedly provided with a ninth bevel gear, the ninth bevel gear can be meshed with the second bevel gear, the right end of the supporting leg is provided with an emergency bin, the first emergency rotating shaft positioned in the emergency bin is fixedly provided with a second emergency bevel gear, the emergency bin positioned on the right side of the second emergency bevel gear is provided with a second emergency rotating shaft in a rotating manner, the second emergency rotating shaft is fixedly provided with a first emergency bevel gear, the first emergency bevel gear can be meshed with the second emergency bevel gear, the front end of the first emergency bevel gear is fixedly provided with a poking shaft, the right side of the second emergency rotating shaft is provided with an absorption pump on the emergency bin, be equipped with the elastic membrane in the aspiration pump, the elastic membrane with be equipped with the spring between the aspiration pump, the fixed slip connecting rod that extends to emergency storehouse that is equipped with in elastic membrane left end is located in the emergency storehouse the fixed lug that is equipped with on the slip connecting rod, under certain conditions, dial the axle can with the lug butt is located the aspiration pump upside rotate on the emergency storehouse and be equipped with the drug absorption pipe, the drug absorption pipe with the aspiration pump is connected, emergency storehouse lower extreme is equipped with first aid article.

Technical Field

The invention relates to the related field of security protection, in particular to an open bench for preventing wild animals from attacking.

Background

As is well known, more and more people like going to some undeveloped large parks such as forest parks to play, the parks are close to nature, and although the parks are good in environment and comfortable and pleasant, because the parks are undeveloped, a plurality of animals which can hurt human beings still exist in the parks, the animals do not want to be in the zoos, the zoos are filled with the wild, the animals risk of attacking people exists, and the situation that the wild animals attack tourists is frequent abroad.

There is therefore a need to solve the above problems by designing an open bench that is protected from wild attacks.

Disclosure of Invention

The object of the present invention is to provide an open bench protected against wild animal attacks, which overcomes the above-mentioned drawbacks of the prior art.

The invention is realized by the following technical scheme. The open bench for preventing the wild animals from attacking comprises a supporting shell, wherein an equipment cavity is arranged in the supporting shell;

the equipment cavity is internally provided with an unfolding mechanism, the lower end of the supporting shell is provided with a spring supporting plate, the spring supporting plate positioned on the left side of the supporting shell is provided with bilaterally symmetrical supporting legs in a sliding manner, the upper end of the supporting shell is fixedly provided with a sliding plate which can slide in the supporting legs, a sliding rod which penetrates through the spring supporting plate and extends to the equipment cavity is fixedly arranged on the ground positioned on the lower side of the spring supporting plate, the sliding rod can slide in the spring supporting plate and the supporting shell, the sliding rod positioned in the equipment cavity is provided with a bearing sliding plate in a sliding manner, a spring is arranged between the bearing sliding plate and the sliding rod, the upper end of the bearing sliding plate is fixedly provided with a motor, the upper end of the motor is actively provided with a first rotating shaft, the first rotating shaft is fixedly provided with a first bevel gear, and the first, the support shell positioned on the lower side of the first bevel gear is rotatably provided with a screw shaft extending out of the support shell, the screw shaft positioned on the support shell is fixedly provided with a third bevel gear, the third bevel gear can be meshed with the first bevel gear, the support leg positioned on the left side of the screw shaft is provided with a nut sleeve, the nut sleeve can be meshed with the screw shaft, the rear end of the support leg is fixedly provided with a backrest support which is bilaterally symmetrical, the front end of the backrest support is provided with a telescopic backrest, the support shell positioned on the upper side of the second bevel gear is rotatably provided with a second rotating shaft extending out of the support shell, the second rotating shaft positioned in the support shell is fixedly provided with a fourth bevel gear, and the second bevel gear is meshed with the fourth bevel gear under a certain condition.

Preferably, the supporting legs are provided with a back mechanism for preventing the wild animal from attacking, the second rotating shaft outside the supporting shell is fixedly provided with a fifth bevel gear, the supporting shell behind the fifth bevel gear is rotatably provided with a third rotating shaft, the third rotating shaft is fixedly provided with a sixth bevel gear, the third rotating shaft under the sixth bevel gear is fixedly provided with a first belt pulley, the sixth bevel gear can be meshed with the fifth bevel gear, the rear end of the backrest support is rotatably provided with a worm shaft, the lower end of the worm shaft is fixedly provided with a second belt pulley, a first belt is arranged between the left and right second belt pulleys and the first belt pulley, the backrest support at the left side of the worm shaft is rotatably provided with a fourth rotating shaft, the right end of the fourth rotating shaft is fixedly provided with a turbine, and the turbine can be meshed with the worm shaft, a seventh bevel gear is fixedly arranged at the left end of the fourth rotating shaft, a fifth rotating shaft is rotatably arranged on the backrest support positioned at the left side of the seventh bevel gear, a first connecting rod is fixedly arranged on the fifth rotating shaft, an eighth bevel gear is fixedly arranged on the fifth rotating shaft positioned at the front side of the first connecting rod and can be meshed with the seventh bevel gear, a fixed shaft is fixedly arranged at the lower end of the first connecting rod, a blocking net roller is rotatably arranged on the fixed shaft, a torsion spring is arranged between the blocking net roller and the fixed shaft, a spring induction plate is arranged on the ground positioned at the rear side of the supporting legs, a second connecting rod is fixedly arranged at the lower end of the spring induction plate, a first sliding shaft is fixedly arranged at the lower end of the second connecting rod, a sixth rotating shaft is rotatably arranged at the right side of the first sliding shaft, and a third connecting rod is fixedly arranged on the sixth rotating shaft, the first sliding shaft can slide at the left end of the third connecting rod, a fourth connecting rod extending to the equipment cavity is arranged on the ground on the right side of the sixth rotating shaft in a sliding mode, the lower end of the fourth connecting rod is classical, a second sliding shaft is arranged at the lower end of the fourth connecting rod, the second sliding shaft can slide at the right end of the third connecting rod, and the fourth connecting rod can be abutted to the bearing sliding plate under a certain condition.

Preferably, a shaft sleeve is slidably arranged on the supporting shell on the right side of the second emergency gear, a first emergency rotating shaft penetrating through the shaft sleeve is rotatably arranged on the shaft sleeve, a ninth bevel gear is fixedly arranged on the first emergency rotating shaft in the equipment cavity and can be meshed with the second emergency gear, an emergency bin is arranged at the right end of the supporting leg, a second emergency bevel gear is fixedly arranged on the first emergency rotating shaft in the emergency bin, a second emergency rotating shaft is arranged on the emergency bin on the right side of the second emergency bevel gear in a rotating manner, a first emergency bevel gear is fixedly arranged on the second emergency rotating shaft and can be meshed with the second emergency bevel gear, a dialing shaft is fixedly arranged at the front end of the first emergency bevel gear, and a suction pump is arranged on the emergency bin on the right side of the second emergency rotating shaft, be equipped with the elastic membrane in the aspiration pump, the elastic membrane with be equipped with the spring between the aspiration pump, the fixed slip connecting rod that extends to emergency storehouse that is equipped with in elastic membrane left end is located in the emergency storehouse the fixed lug that is equipped with on the slip connecting rod, under certain conditions, dial the axle can with the lug butt is located the aspiration pump upside rotate on the emergency storehouse and be equipped with the drug absorption pipe, the drug absorption pipe with the aspiration pump is connected, emergency storehouse lower extreme is equipped with first aid article.

The invention has the beneficial effects that: the invention has simple structure and simple and convenient operation, can help people to prevent the people from being attacked by the wild animals in the forest park from the back, protects the people from being injured by the wild animals, can automatically block when the wild animals attack the seat on the back, can scare away animals such as venomous snakes before the people sit on the seat, can carry out emergency treatment such as poison absorption and hemostasis at the bench when the people are bitten by the poisons or the wild animals nearby, and has higher integration degree.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

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

FIG. 2 is a schematic view of the structure A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of B of FIG. 2;

FIG. 4 is an enlarged schematic view of the structure of C in FIG. 1;

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The open bench for preventing wild animals from attacking in conjunction with the attached drawings 1-4 comprises a supporting shell 11, an equipment cavity 12 is arranged in the supporting shell 11, an unfolding mechanism 80 is arranged in the equipment cavity 12, a spring supporting plate 24 is arranged at the lower end of the supporting shell 11, supporting legs 10 which are bilaterally symmetrical are arranged on the spring supporting plate 24 positioned at the left side of the supporting shell 11 in a sliding manner, a sliding plate 23 is fixedly arranged at the upper end of the supporting shell 11, the sliding plate 23 can slide in the supporting legs 10, a sliding rod 13 which penetrates through the spring supporting plate 24 and extends to the equipment cavity 12 is fixedly arranged on the ground positioned at the lower side of the spring supporting plate 24, the sliding rod 13 can slide in the spring supporting plate 24 and the supporting shell 11, a bearing sliding plate 14 is arranged on the sliding rod 13 positioned in the equipment cavity 12 in a sliding manner, and a spring is arranged between the bearing sliding, a motor 15 is fixedly arranged at the upper end of the bearing sliding plate 14, a first rotating shaft 18 is actively arranged at the upper end of the motor 15, a first bevel gear 19 is fixedly arranged on the first rotating shaft 18, a second bevel gear 17 is fixedly arranged on the first rotating shaft 18, which is positioned on the upper side of the first bevel gear 19, a screw shaft 21, which extends out of the supporting shell 11, is rotatably arranged on the supporting shell 11, which is positioned on the lower side of the first bevel gear 19, a third bevel gear 20 is fixedly arranged on the screw shaft 21, which is positioned on the supporting shell 11, the third bevel gear 20 can be meshed with the first bevel gear 19, a nut sleeve 22 is arranged on the supporting leg 10, which is positioned on the left side of the screw shaft 21, the nut sleeve 22 can be meshed with the screw shaft 21, a backrest support 47 which is bilaterally symmetrical is fixedly arranged at the rear end of the supporting leg 10, and a telescopic backrest 48 is arranged at, a second rotating shaft 46 extending out of the supporting shell 11 is rotatably arranged on the supporting shell 11 at the upper side of the second bevel gear 17, a fourth bevel gear 16 is fixedly arranged on the second rotating shaft 46 in the supporting shell 11, and under a certain condition, the second bevel gear 17 is meshed with the fourth bevel gear 16.

Beneficially, the supporting foot 10 is provided with a back mechanism 81 for preventing the wild animal from attacking, the second rotating shaft 46 outside the supporting housing 11 is fixedly provided with a fifth bevel gear 45, the supporting housing 11 behind the fifth bevel gear 45 is rotatably provided with a third rotating shaft 43, the third rotating shaft 43 is fixedly provided with a sixth bevel gear 42, the third rotating shaft 43 below the sixth bevel gear 42 is fixedly provided with a first belt pulley 44, the sixth bevel gear 42 can be meshed with the fifth bevel gear 45, the back support 47 is rotatably provided with a worm shaft 32 at the rear end, the lower end of the worm shaft 32 is fixedly provided with a second belt pulley 40, a first belt 41 is provided between the left and right second belt pulleys 40 and the first belt pulley 44, the back support 47 at the left side of the worm shaft 32 is rotatably provided with a fourth rotating shaft 39, and a turbine 38 is fixedly provided at the right end of the fourth rotating shaft 39, the worm gear 38 can be engaged with the worm shaft 32, a seventh bevel gear 37 is fixedly arranged at the left end of the fourth rotating shaft 39, a fifth rotating shaft 34 is rotatably arranged on the backrest support 47 positioned at the left side of the seventh bevel gear 37, a first connecting rod 33 is fixedly arranged on the fifth rotating shaft 34, an eighth bevel gear 35 is fixedly arranged on the fifth rotating shaft 34 positioned at the front side of the first connecting rod 33, the eighth bevel gear 35 can be engaged with the seventh bevel gear 37, a fixed shaft 30 is fixedly arranged at the lower end of the first connecting rod 33, a blocking net roller 31 is rotatably arranged on the fixed shaft 30, a torsion spring is arranged between the blocking net roller 31 and the fixed shaft 30, a spring induction plate 50 is arranged on the ground at the rear side of the supporting foot 10, a second connecting rod 51 is fixedly arranged at the lower end of the spring induction plate 50, and a first sliding shaft 52 is fixedly arranged at the lower end of the second connecting rod 51, a sixth rotating shaft 53 is rotatably arranged on the sixth rotating shaft 53 on the right side of the first sliding shaft 52, a third connecting rod 54 is fixedly arranged on the sixth rotating shaft 53, the first sliding shaft 52 can slide at the left end of the third connecting rod 54, a fourth connecting rod 55 extending to the equipment cavity 12 is arranged on the ground on the right side of the sixth rotating shaft 53 in a sliding manner, a second sliding shaft 56 is arranged at the lower end of the fourth connecting rod 55 in a classical manner, the second sliding shaft 56 can slide at the right end of the third connecting rod 54, and under a certain condition, the fourth connecting rod 55 can be abutted to the bearing sliding plate 14.

Beneficially, a shaft sleeve 26 is slidably disposed on the supporting housing 11 at the right side of the second bevel gear 17, a first emergency rotating shaft 57 penetrating through the shaft sleeve 26 is rotatably disposed on the shaft sleeve 26, a ninth bevel gear 25 is fixedly disposed on the first emergency rotating shaft 57 located in the equipment cavity 12, the ninth bevel gear 25 can be engaged with the second bevel gear 17, an emergency bin 27 is disposed at the right end of the supporting leg 10, a second emergency bevel gear 58 is fixedly disposed on the first emergency rotating shaft 57 located in the emergency bin 27, a second emergency rotating shaft 29 is rotatably disposed on the emergency bin 27 at the right side of the second emergency bevel gear 58, a first emergency bevel gear 28 is fixedly disposed on the second emergency rotating shaft 29, the first emergency bevel gear 28 can be engaged with the second emergency bevel gear 58, a dial shaft 59 is fixedly disposed at the front end of the first emergency bevel gear 28, be located second emergency pivot 29 right side volume be equipped with suction pump 61 on the emergency storehouse 27, be equipped with elastic membrane 62 in the suction pump 61, elastic membrane 62 with be equipped with the spring between the suction pump 61, the fixed sliding connecting rod 63 that extends to emergency storehouse 27 that is equipped with in elastic membrane 62 left end is located in the emergency storehouse 27 fixed lug 64 that is equipped with on the sliding connecting rod 63, under certain conditions, dial axle 59 can with lug 64 butt is located suction pump 61 upside rotate on the emergency storehouse 27 and be equipped with drug absorption pipe 60, drug absorption pipe 60 with suction pump 61 is connected, emergency storehouse 27 lower extreme is equipped with first-aid article 65.

The use steps herein are described in detail below with reference to fig. 1-4:

initial state:

when the seat is not manually retracted, the motor 15 is started, the motor 15 rotates to drive the first rotating shaft 18 to rotate, the first rotating shaft 18 rotates to drive the second bevel gear 17 and the first bevel gear 19 to rotate, the first bevel gear 19 rotates to drive the third bevel gear 20 to rotate, the third bevel gear 20 rotates to drive the screw shaft 21 to rotate, the screw shaft 21 rotates to drive the nut sleeve 22 to move leftwards for retraction, and the nut sleeve 22 moves to drive the supporting leg 10 for retraction.

The working state is as follows:

when people come, the seat is opened, and toxic animals under the seat can be scared away, and the position relationship is shown in the figure.

A person sits on the chair, a wild animal is ready to steal, the gravity of the person drives the spring support plate 24, the support shell 11 and the support legs 10 to descend, the spring support plate 24 descends, the position of the slide rod 13 is unchanged, the support shell 11 descends, the slide rod 13 ascends in the support shell 11 relative to the slide rod 13, the slide rod 13 ascends to drive the bearing slide plate 14 to ascend, the bearing slide plate 14 moves to drive the motor 15 to move, the motor 15 moves to drive the first rotating shaft 18, the second bevel gear 17 and the first bevel gear 19 to move, at the moment, the first bevel gear 19 is disengaged, and the upper end of the fourth connecting rod 55 is abutted to the lower end of the bearing slide plate;

when a wild animal approaches from the rear and passes through the spring induction plate 50, the spring induction plate 50 descends, the spring induction plate 50 moves to drive the second connecting rod 51 to move, the second connecting rod 51 moves to drive the first sliding shaft 52 to move, the first sliding shaft 52 moves to drive the third connecting rod 54 to rotate around the sixth rotating shaft 53, the third connecting rod 54 rotates to drive the second sliding shaft 56 to ascend, the second sliding shaft 56 moves to drive the fourth connecting rod 55 to ascend, the fourth connecting rod 55 ascends to push the bearing sliding plate 14 to overcome the spring and move upwards on the sliding rod 13, the bearing sliding plate 14 moves to drive the motor 15 to move upwards again, at this time, the second bevel gear 17 is meshed with the fourth bevel gear 16, the motor 15 starts, the motor 15 rotates to drive the second bevel gear 17 to rotate, the second bevel gear 17 rotates to drive the fourth bevel gear 16 to rotate, the fourth bevel gear 16 rotates to drive the second rotating shaft 46 to rotate, and drive the fifth bevel gear 45 to rotate, the fifth bevel gear 45 rotates to drive the sixth bevel gear 42 to rotate, the sixth bevel gear 42 rotates to drive the third rotating shaft 43 to rotate, the third rotating shaft 43 rotates to drive the first belt pulley 44 to rotate, the first belt pulley 44 rotates to drive the first belt 41 to rotate, the first belt 41 rotates to drive the second belt pulley 40 to rotate, the second belt pulley 40 rotates to drive the worm shaft 32 to rotate, the worm shaft 32 rotates to drive the turbine 38 to rotate, the turbine 38 rotates to drive the fourth rotating shaft 39 to rotate, the fourth rotating shaft 39 rotates to drive the seventh bevel gear 37 to rotate, the seventh bevel gear 37 rotates to drive the eighth bevel gear 35 to rotate, the eighth bevel gear 35 rotates to drive the fifth rotating shaft 34 to rotate, the fifth rotating shaft 34 rotates to drive the first connecting rod 33 to rotate, the first connecting rod 33 rotates to drive the fixed shaft 30 to rotate, and the fixed shaft 30 rotates to drive the blocking net roller 31 to lift and block the.

When a person is bitten by poisonous snake or other poisonous object, the first-aid object in the first-aid object 65 is used, the toxin suction pipe 60 is pulled out to aim at the wound, the motor 15 is started in any mode of the chair, the motor 15 rotates to drive the second bevel gear 17 to rotate, the second bevel gear 17 rotates to drive the ninth bevel gear 25 to rotate, the ninth bevel gear 25 rotates to drive the first emergency rotating shaft 57 to rotate, the first emergency rotating shaft 57 rotates to drive the second emergency bevel gear 58 to rotate, the second emergency bevel gear 58 rotates to drive the first emergency bevel gear 28 to rotate, the first emergency bevel gear 28 rotates to drive the shifting shaft 59 to rotate, the shifting shaft 59 rotates to drive the pushing lug 64 to move rightwards, the lug 64 moves to drive the sliding connecting rod 63 to move, the sliding connecting rod 63 moves to drive the elastic membrane 62 to move, and under the action of the spring, the elastic membrane 62 performs reciprocating suction and blowing.

The invention has the beneficial effects that: the invention has simple structure and simple and convenient operation, can help people to prevent the people from being attacked by the wild animals in the forest park from the back, protects the people from being injured by the wild animals, can automatically block when the wild animals attack the seat on the back, can scare away animals such as venomous snakes before the people sit on the seat, can carry out emergency treatment such as poison absorption and hemostasis at the bench when the people are bitten by the poisons or the wild animals nearby, and has higher integration degree.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.