阅读说明：本技术 弯曲步行桥 (Curved walking bridge ) 是由 刘俊军 于 2020-12-23 设计创作，主要内容包括：本发明提供弯曲步行桥,涉及智能建筑技术领域。本发明中提供的弯曲步行桥,通过液压杆的伸长与缩短实现弯曲步行桥在平铺和卷曲状态之间切换。该弯曲步行桥可应在各种水系环境中,其中弯曲步行桥的一端可固定水道的一端,非工作状态,液压杆处于收缩状态,整个弯曲步行桥呈卷曲状态；当需要将其展开时,液压杆伸长状态,这样整个弯曲步行桥呈横跨在水道的平铺状态。本发明的这种弯曲步行桥在河道清理时不会对清理船进行阻碍,同时,通过收卷动作,具有很强的科技感。(The invention provides a curved walking bridge, and relates to the technical field of intelligent buildings. According to the bending walking bridge provided by the invention, the bending walking bridge is switched between a flat laying state and a curling state through the extension and the shortening of the hydraulic rod. The bent walking bridge can be applied to various water system environments, wherein one end of the bent walking bridge can be used for fixing one end of a water channel, the bent walking bridge is in a non-working state, a hydraulic rod is in a contraction state, and the whole bent walking bridge is in a curling state; when the folding walking bridge needs to be unfolded, the hydraulic rod is in an extended state, so that the whole bending walking bridge is in a flat state crossing the water channel. The bent walking bridge does not obstruct a cleaning ship when cleaning a river channel, and has strong scientific and technological sense through rolling action.)

1. A curved walking bridge, characterized in that: comprises a body (1) and a fixing device (3);

the body (1) is a curved walking bridge; the curved walking bridge comprises: a first step row unit, a second step row unit, a third step row unit, a fourth walking unit and a fifth walking unit; the first walking unit, the second walking unit, the third walking unit, the fourth walking unit and the fifth walking unit are sequentially hinged, a hydraulic rod (2) is arranged between the two connected walking units, and the bending walking bridge is switched between a flat state and a curled state through extension and shortening of the hydraulic rod (2).

2. The curved walking bridge of claim 1, wherein: the first step row unit, the second step row unit, the third step row unit, the fourth walking unit and the fifth walking unit all comprise: the pedal comprises two fan-shaped guardrails and a pedal connected between the two fan-shaped guardrails;

two adjacent walking units are connected through two hinged plates (7) in front, wherein one end of each hinged plate (7) is connected with the bottom of the fan-shaped guardrail of one walking unit through a hinged shaft, and the other end of each hinged plate (7) is connected with the bottom of the fan-shaped guardrail of the other adjacent walking unit through a hinged shaft;

a hydraulic rod (2) is arranged on the hinged plate (7);

the output end of the hydraulic rod (2) is provided with a short shaft in a penetrating way;

two connecting rods (6) are respectively arranged on the short shafts, one connecting rod (6) is connected with the top of the side of the fan-shaped guardrail of one walking unit, and the other connecting rod (6) is connected with the top of the side of the fan-shaped guardrail of the other adjacent walking unit.

3. The curved walking bridge of claim 2, wherein: the sector guard rail includes a frame and a longitudinal mast disposed in the frame.

4. The curved walking bridge of claim 2, wherein: the fixing device (3) is arranged on the side surface of the first step row unit of the body (1); the fixing device (3) is arranged on the side surface of the fifth walking unit of the body (1).

5. The curved walking bridge of claim 4, wherein:

the fixing device (3) comprises a rectangular block (301), one end of the rectangular block (301) is welded with the body (1), a rectangular groove (302) is formed in one end of the rectangular block (301), a bottom plate (303) is connected to the inner wall of the rectangular groove (302) in a sliding mode, a clamping plate (304) is connected to one end, far away from the bottom plate (303), of the rectangular groove (302) in a sliding mode, a sliding block (310) is connected to one end, far away from the rectangular groove (302), of the rectangular block (301) in a sliding mode, the sliding block (310) is in a U shape, a limiting column (311) is connected to the inside of the sliding block (310) in a sliding mode, one end of the limiting column (311) is inserted into the bottom plate (303), a limiting hole (314) is formed in one end, close to the sliding column (307), of the rectangular block (301), the size of the limiting hole (314) is matched with the size of the limiting, the sleeve barrel (306) is inverted L-shaped, the short arm end of the sleeve barrel (306) is welded with the clamping plate (304), the sliding column (307) is connected inside the sleeve barrel (306) in a sliding mode, one end, far away from the sleeve barrel (306), of the sliding column (307) is connected with two fixing columns (316) in a sliding mode, the two fixing columns (316) are symmetrically distributed with the central axis of the sliding column (307), the protruding block (308) is welded at one end, far away from the body (1), of the bottom plate (303), one end, close to the sliding column (307), of the protruding block (308) is provided with a groove, through holes (309) are formed in two sides of the groove, and the size of the through holes (309) is matched with the size of the fixing columns (316).

6. The curved walking bridge of claim 5, wherein: the inner part of the rectangular groove (302) is provided with a first spring (305), one end of the first spring (305) is fixedly connected with the bottom plate (303), and the end, far away from the bottom plate (303), of the first spring (305) is fixedly connected with the clamping plate (304).

7. The curved walking bridge of claim 6, wherein: spacing post (311) are kept away from the one end welding of rectangular block (301) and are had ejector pad (313), ejector pad (313) are the octagon, the surface winding of spacing post (311) has second spring (312), the one end and the sliding block (310) fixed connection of second spring (312), the one end and the ejector pad (313) fixed connection of sliding block (310) are kept away from in second spring (312).

8. The curved walking bridge of claim 7, wherein: the two sides of the sliding column (307) are provided with grooves, elastic pieces (315) are fixedly connected inside the grooves, the elastic pieces (315) are V-shaped, one end, far away from the grooves, of each elastic piece (315) is fixedly connected with a fixing column (316), and the surface of each fixing column (316) is in sliding connection with the grooves.

Technical Field

The invention relates to the technical field of walking bridges, in particular to a bent walking bridge.

Background

A bridge is a large structure used to span obstacles, specifically to span a traffic route or other facilities over natural or artificial obstacles; such as a construction of a highway, a railway line, and the purpose of a bridge is to allow a person, a vehicle, a train, or a ship to pass through an obstacle.

Currently, for some water parks, there are some channels that are staggered. In this case, various walking bridges need to be erected on the river. At present, most of walking bridges are constructed on two sides of a river channel, and few innovations exist. Of course, this type of walking bridge will have a certain hindering effect on the cleaning of the vessel during the cleaning of the river.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a curved walking bridge.

In order to achieve the purpose, the invention adopts the following technical scheme: crooked walking bridge, including body and fixing device, the body is crooked walking bridge, crooked walking bridge includes: a first step row unit, a second step row unit, a third step row unit, a fourth walking unit and a fifth walking unit; the first walking unit, the second walking unit, the third walking unit, the fourth walking unit and the fifth walking unit are sequentially hinged, a hydraulic rod is arranged between the two connected walking units, and the bent walking bridge is switched between a flat laying state and a curling state through the extension and the shortening of the hydraulic rod;

preferably: the first step row unit, the second step row unit, the third step row unit, the fourth walking unit and the fifth walking unit all comprise: the pedal comprises two fan-shaped guardrails and a pedal connected between the two fan-shaped guardrails;

the two adjacent walking units are connected through two hinged plates in front, wherein one end of each hinged plate is connected with the bottom of the fan-shaped guardrail of one walking unit through a hinged shaft, and the other end of each hinged plate is connected with the bottom of the fan-shaped guardrail of the other adjacent walking unit through a hinged shaft;

a hydraulic rod is arranged on the hinged plate;

a short shaft penetrates through the output end of the hydraulic rod;

two connecting rods are respectively installed on the short shafts, one connecting rod is connected with the top of the side of the fan-shaped guardrail of one walking unit, and the other connecting rod is connected with the top of the side of the fan-shaped guardrail of the other adjacent walking unit.

Preferably: the sector guard rail includes a frame and a longitudinal mast disposed in the frame.

Preferably: the fixing device is arranged on the side face of the first step row unit of the body; the fixing device is arranged on the side surface of the fifth walking unit of the body.

Preferably, one end of the body is fixedly connected with a hydraulic rod, two sides of the body are respectively provided with a fixing device, the fixing device comprises a rectangular block, one end of the rectangular block is welded with the body, one end of the rectangular block is provided with a rectangular groove, the inner wall of the rectangular groove is connected with a bottom plate in a sliding manner, one end of the rectangular groove, far away from the bottom plate, is connected with a clamping plate in a sliding manner, one end of the rectangular block, far away from the rectangular groove, is connected with a sliding block in a sliding manner, the sliding block is in a U shape, a limiting column is connected in the sliding block in a sliding manner, one end of the limiting column is inserted into the bottom plate, one end of the rectangular block, close to the sliding column, is provided with a limiting hole, the size of the limiting hole is matched with the size of the limiting column, one end of the clamping plate, far away from, the inner sliding connection of the sleeve barrel is provided with a sliding column, one end, far away from the sleeve barrel, of the sliding column is connected with two fixing columns in a sliding mode, the two fixing columns are symmetrically distributed with the center shaft of the sliding column, a protruding block is welded at one end, far away from the body, of the bottom plate, one end, close to the sliding column, of the protruding block is provided with a groove, through holes are formed in two sides of the groove, and the size of each through hole is matched with that of each fixing column.

Preferably, the inside of rectangular channel is equipped with first spring, the one end and the bottom plate fixed connection of first spring, the one end and the splint fixed connection of bottom plate are kept away from to first spring.

Preferably, the one end welding that the rectangular block was kept away from to spacing post has the ejector pad, the ejector pad is the octagon, the surface winding of spacing post has the second spring, the one end and the sliding block fixed connection of second spring, the one end and the ejector pad fixed connection of sliding block are kept away from to the second spring.

Preferably, the two sides of the sliding column are provided with grooves, the grooves are fixedly connected with elastic pieces, the elastic pieces are V-shaped, one ends, far away from the grooves, of the elastic pieces are fixedly connected with the fixing columns, and the surfaces of the fixing columns are connected with the grooves in a sliding mode.

Preferably, the protection device comprises a placing groove, the placing groove is formed in each of two sides of the body, a first protection plate and a second protection plate are clamped in the placing groove respectively, the first protection plate and the second protection plate are in inverted ladder shapes, protection nets are arranged on the surfaces of the first protection plate and the second protection plate, an opening is formed in one end, close to the first protection plate, of the second protection plate, two connecting blocks are fixedly connected to one end, close to the second protection plate, of the first protection plate, the two connecting blocks are symmetrically distributed along a central axis of the first protection plate, an accommodating groove is formed in one end of each connecting block, a rotating block is rotatably connected to the inside of the accommodating groove, two third springs are fixedly connected to the inside of the accommodating groove, the two third springs are symmetrically distributed along the central axis of the accommodating groove, and one end, close to each other, of the two third springs is fixedly connected to the rotating block, the one end sliding connection that the second guard plate is close to the turning block has the card post, the one end that the turning block is close to the card post is seted up slottedly, and the size in groove and the size phase-match of card post, the square hole has been seted up to the one end of second guard plate, the square hole is slightly bigger than the turning block.

Preferably, two clamping blocks are fixedly connected to one end, far away from the connecting block, of the first protection plate, the two clamping blocks are symmetrically distributed on the central axis of the first protection plate, and the size of each clamping block is matched with the size of the opening of the second protection plate.

Preferably, one end of the body, which is far away from the protective device, is provided with a clamping device, the clamping device comprises four square grooves, one end of the body is provided with the square grooves, and the four square grooves are distributed symmetrically with the central axis of the body in pairs, connecting columns are fixedly connected inside the square grooves, one end of the connecting column, which is far away from the square groove, is connected with a sliding rod in a sliding way, one end of the sliding rod, which is far away from the connecting column, is welded with a clamping arm, the clamping arm is U-shaped, rectangular holes are respectively arranged at two ends of the clamping arm, a fixing block is welded at one end of the body, a groove is arranged at one end of the fixed block close to the clamping arm, a sliding plate is connected inside the groove in a sliding manner, the sliding plate is L-shaped, a limiting spring is fixedly connected to the inner wall of the groove, one end, far away from the groove, of the limiting spring is fixedly connected with the long arm end of the sliding plate, and the size of the short arm end of the sliding plate is matched with that of the rectangular hole.

Preferably, the surfaces of the connecting column and the sliding rod are wound with return springs, one ends of the return springs are fixedly connected with the square groove, and the ends, far away from the square groove, of the return springs are fixedly connected with the clamping arms

Preferably, one end of the hydraulic rod close to the body is fixedly connected with a hinged plate, two sides of the hinged plate are rotatably connected with the body, one end of the hydraulic rod far away from the hinged plate is rotatably connected with two connecting rods, and one ends of the two connecting rods far away from each other are respectively rotatably connected with the body.

Compared with the prior art, the invention has the advantages and positive effects that,

according to the bending walking bridge provided by the invention, the bending walking bridge is switched between a flat laying state and a curling state through the extension and the shortening of the hydraulic rod. The bent walking bridge can be applied to various water system parks, wherein one end of the bent walking bridge can fix one end of a water channel and is in a non-working state, a hydraulic rod is in a contraction state, and the whole bent walking bridge is in a curling state; when the folding walking bridge needs to be unfolded, the hydraulic rod is in an extended state, so that the whole bending walking bridge is in a flat state crossing the water channel. The bent walking bridge does not obstruct a cleaning ship when cleaning a river channel, and has strong scientific and technological sense through rolling action. Moreover, the method is also beneficial to the management of the ecological unmanned area of the water system park.

Drawings

FIG. 1 is a schematic perspective view of a curved walking bridge according to the present invention;

FIG. 2 is a schematic view of a fixing device of the curved walking bridge according to the present invention;

FIG. 3 is a schematic rear view of the structure of FIG. 2 in a curved walking bridge according to the present invention;

FIG. 4 is a schematic structural view of a sliding column in a curved walking bridge according to the present invention;

FIG. 5 is a schematic view of the structure of the guard device in the curved walking bridge according to the present invention;

FIG. 6 is a schematic view of the structure of FIG. 5 at A in a curved walking bridge according to the present invention;

FIG. 7 is a schematic view of the structure of FIG. 5 at B in a curved walking bridge according to the present invention;

FIG. 8 is a schematic bottom view of the structure of FIG. 1 in a curved walking bridge according to the present invention;

FIG. 9 is a schematic view of the structure of FIG. 8 at C of a curved walking bridge in accordance with the present invention;

fig. 10 is a schematic view of the structure of fig. 1 at D in the curved walking bridge according to the present invention.

Illustration of the drawings: 1. a body; 2. a hydraulic lever; 3. a fixing device; 301. a rectangular block; 302. a rectangular groove; 303. a base plate; 304. a splint; 305. a first spring; 306. sleeving a barrel; 307. a sliding post; 308. a bump; 309. a through hole; 310. a slider; 311. a limiting column; 312. a second spring; 313. a push block; 314. a limiting hole; 315. a spring plate; 316. fixing a column; 4. a guard; 401. a first guard plate; 402. a second guard plate; 403. a placement groove; 404. a clamping block; 405. connecting blocks; 406. a receiving groove; 407. rotating the block; 408. a third spring; 409. a square hole; 410. clamping the column; 5. a clamping device; 501. clamping arms; 502. connecting columns; 503. a slide bar; 504. a return spring; 505. a rectangular hole; 506. a fixed block; 507. a groove; 508. a sliding plate; 509. a limiting spring; 510. a square groove; 6. a connecting rod; 7. a hinge plate.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 7, the present invention provides a curved walking bridge, including a body 1, the body 1 is a curved walking bridge, and one end of the body 1 is fixedly connected with a hydraulic rod 2. The curved walking bridge comprises: a first step row unit, a second step row unit, a third step row unit, a fourth walking unit and a fifth walking unit; the first walking unit, the second walking unit, the third walking unit, the fourth walking unit and the fifth walking unit are sequentially hinged, a hydraulic rod 2 is arranged between the two connected walking units, and the bent walking bridge is switched between a flat laying state and a curling state through the extension and the shortening of the hydraulic rod 2.

The first step row unit, the second step row unit, the third step row unit, the fourth walking unit and the fifth walking unit all comprise: the pedal comprises two fan-shaped guardrails and a pedal connected between the two fan-shaped guardrails; two adjacent walking units are connected by two hinge plates 7 in advance, wherein one end of each hinge plate 7 is connected with the bottom of the fan-shaped guardrail of one walking unit by a hinge shaft, and the other end of each hinge plate 7 is connected with the bottom of the fan-shaped guardrail of the other adjacent walking unit by a hinge shaft; a hydraulic rod 2 is arranged on the hinged plate 7; a short shaft penetrates through the output end of the hydraulic rod 2; two connecting rods 6 are respectively arranged on the short shafts, wherein one connecting rod 6 is connected with the top of the side of the fan-shaped guardrail of one walking unit, and the other connecting rod 6 is connected with the top of the side of the fan-shaped guardrail of the other adjacent walking unit. The sector guard rail includes a frame and a longitudinal mast disposed in the frame.

Preferably, the fixing device 3 is arranged on the side of the first step row unit of the body 1; the fixing device 3 is provided on the side of the fifth walking unit of the main body 1.

The specific arrangement and function of the fixing means 3 and the shielding means 4 will be described in detail below.

As shown in fig. 1 and 2, the fixing device 3 is disposed on both sides of the body 1, the fixing device 3 includes a rectangular block 301, one end of the rectangular block 301 is welded to the body 1, one end of the rectangular block 301 is formed with a rectangular slot 302, the inner wall of the rectangular slot 302 is connected to a bottom plate 303 in a sliding manner, one end of the rectangular slot 302 away from the bottom plate 303 is connected to a clamp plate 304 in a sliding manner, one end of the rectangular block 301 away from the rectangular slot 302 is connected to a sliding block 310 in a sliding manner, the sliding block 310 is U-shaped, a position-limiting post 311 is connected to the inside of the sliding block 310 in a sliding manner, one end of the position-limiting post 311 is inserted into the bottom plate 303, one end of the rectangular block 301 close to the sliding post 307 is formed with a position-limiting hole 314, the position-limiting hole 314 is matched with the position-limiting post 311, one end of the clamp plate 304 away from the body 1 is provided with a sleeve, the end of the sliding column 307 far away from the sleeve 306 is connected with two fixed columns 316 in a sliding way, the two fixed columns 316 are symmetrically distributed around the central axis of the sliding column 307, the end of the bottom plate 303 far away from the body 1 is welded with a convex block 308, the end of the convex block 308 close to the sliding column 307 is provided with a groove, both sides of the groove are provided with through holes 309, the size of the through hole 309 is matched with that of the fixed column 316, the inside of the rectangular groove 302 is provided with a first spring 305, one end of the first spring 305 is fixedly connected with the bottom plate 303, the end of the first spring 305 far away from the bottom plate 303 is fixedly connected with the clamp plate 304, one end of the limiting column 311 far away from the rectangular block 301 is welded with a push block 313, the push block 313 is octagonal, the surface of the limiting column 311 is wound with a second spring 312, one end of the second spring 312 is fixedly connected with the sliding block 310, one end, and the inside fixedly connected with shell fragment 315 in the groove, the shell fragment 315 is "V" font, and the one end and the fixed column 316 fixed connection of keeping away from the groove of shell fragment 315, the surface and the groove sliding connection of fixed column 316.

The whole fixing device 3 achieves the effect that by arranging the fixing device 3, one end of the bent walking bridge is placed on the ground, at the moment, one end of the ground is provided with a protruded place, the fixing device 3 is placed at the protruded place, the clamping plate 304 in the rectangular groove 302 is pulled firstly, so that the clamping plate 304 moves towards the direction far away from the bottom plate 303, then the pushing block 313 is pulled, the pushing block 313 drives the second spring 312 and the limiting column 311 to leave the bottom plate 303, at the moment, the bottom plate 303 is slid, so that one end of the bottom plate 303 is attached to the protruded place of the ground, then the sliding block 310 is slid, the sliding block 310 drives the limiting column 311 to slide, when the sliding block 310 slides to the same straight line with the bottom plate 303, the pushing block 313 is released, the second spring 312 recovers the elastic force, so that the second spring 312 drives the pushing block 313 and the limiting column 311 to pass through the limiting hole 314 to reenter the bottom plate 303, and, at this time, the clamp plate 304 is released, the first spring 305 in the slide groove recovers the elastic force, the first spring 305 moves the clamp plate 304 toward the bottom plate 303, so that one end of the clamp plate 304 is attached to the protrusion of the ground, and then the sliding column 307 in the sleeve 306 is slid, the sliding column 307 drives the fixing column 316 to slide towards the groove of the projection 308, when the fixed post 316 enters the groove of the bump 308, the fixed post 316 is pressed to shrink into the sliding post 307, so that the sliding column 307 can smoothly enter, when the fixed column 316 reaches the through hole 309, the elastic sheets 315 in the grooves at the two sides of the sliding column 307 recover the elastic force, the fixed column 316 is ejected, the fixed column 316 passes through the through hole 309, thereby fixing the clamping plate 304 and the bottom plate 303, solving the problem that the bridge body can not be fixed with the ground because the fixing device 3 is not arranged when the prior bending walking bridge is used, when a person rocks the curved walking bridge, the bridge will be unstable and the problem of the situation of falling into water easily occurs.

As shown in fig. 1 and 5, an end guard 4 of a body 1, the guard 4 includes a placement groove 403, the placement groove 403 is formed on both sides of the body 1, a first protection plate 401 and a second protection plate 402 are respectively clamped inside the placement groove 403, the first protection plate 401 and the second protection plate 402 are both in an inverted ladder shape, protective nets are respectively disposed on the surfaces of the first protection plate 401 and the second protection plate 402, an opening is formed at one end of the second protection plate 402 close to the first protection plate 401, two connection blocks 405 are fixedly connected to one end of the first protection plate 401 close to the second protection plate 402, the two connection blocks 405 are symmetrically distributed around a central axis of the first protection plate 401, a storage groove 406 is formed at one end of the connection blocks 405, a rotation block is rotatably connected inside the storage groove 406, two third springs 408 are fixedly connected inside the storage groove 406, and the two third springs 408 are symmetrically distributed around the central axis of the storage groove 406, two third springs 408 are close to one end and turning block 407 fixed connection each other, the one end sliding connection that second protection plate 402 is close to turning block 407 has card post 410, turning block 407 is close to the one end of card post 410 and sets up slottedly, the size in groove and the size phase-match of card post 410, square hole 409 has been seted up to the one end of second protection plate 402, square hole 409 is slightly bigger than turning block 407, two fixture blocks 404 of one end fixedly connected with that connecting block 405 was kept away from to first protection plate 401, and two fixture blocks 404 are with the center pin symmetric distribution of first protection plate 401, the size of fixture block 404 and the open-ended size phase-match of second protection plate 402.

The whole protection device 4 has the effects that by arranging the protection device 4, the first protection plate 401 and the second protection plate 402 are respectively placed in the placing grooves 403 on the two sides of the body 1, so that the first protection plate 401 and the second protection plate 402 are positioned on the same straight line, at the moment, the first protection plate 401 and the second protection plate 402 are pushed towards the directions close to each other, when the rotating block 407 at one end of the connecting block 405 enters the second protection plate 402, the rotating block is squeezed, the rotating block 407 squeezes the third spring 408 to rotate towards the accommodating groove 406, so that the connecting block 405 smoothly enters the opening of the second protection plate 402, when the rotating block 407 reaches the square hole 409, the third spring 408 in the accommodating groove 406 recovers the elastic force, the rotating block rebounds to the original position, the rotating block 407 passes through the square hole 409, then the clamping column 410 at one end of the second protection plate 402 is slid, so that the clamping column 410 is clamped with the groove on the surface of the rotating block 407, so that the turning block 407 is fixed, when first guard plate 401 and second guard plate 402 are close to each other, the fixture block 404 that first guard plate 401 is far away from connecting block 405 one end also gets into in the opening of second guard plate 402 for first guard plate 401 and second guard plate 402 are fixed each other, thereby it has the gap in the middle of traditional crooked walking bridge to have solved, and does not have any protector 4, can appear the problem that drops carelessly when child walks on the bridge.

Embodiment 2, on the basis of embodiment 1, as shown in fig. 8 and 9, a clamping device 5 is disposed at one end of a body 1 away from a protection device 4, the clamping device 5 includes four square grooves 510, the one end of the body 1 is provided with the square grooves 510, and the four square grooves 510 are distributed symmetrically with respect to a central axis of the body 1 in pairs, a connecting column 502 is fixedly connected inside the square groove 510, one end of the connecting column 502 away from the square grooves 510 is slidably connected with a sliding rod 503, one end of the sliding rod 503 away from the connecting column 502 is welded with a clamping arm 501, the clamping arm 501 is U-shaped, two ends of the clamping arm 501 are respectively provided with a rectangular hole 505, one end of the body 1 is welded with a fixed block 506, one end of the fixed block 506 close to the clamping arm 501 is provided with a groove 507, the inside of the groove 507 is slidably connected with a sliding plate 508, the sliding plate 508 is L-shaped, an inner wall of the groove 509 is fixedly, the size of the short arm end of the sliding plate 508 is matched with that of the rectangular hole 505, the return spring 504 is wound on the surfaces of the connecting column 502 and the sliding rod 503, one end of the return spring 504 is fixedly connected with the square groove 510, one end of the return spring 504, which is far away from the square groove 510, is fixedly connected with the clamping arm 501, one end of the hydraulic rod, which is close to the body, is fixedly connected with a hinged plate, two sides of the hinged plate are rotatably connected with the body, one end of the hydraulic rod, which is far away from the hinged plate, is rotatably connected with two connecting rods, and one ends, which are far away.

The integral protection device has the advantages that by arranging the clamping device 5, when the first protection plate 401 and the second protection plate 402 are not used, the first protection plate 401 and the second protection plate 402 are placed at one end of the body 1, the clamping arm 501 is pulled towards one end far away from the body 1 at the moment, the first protection plate 401 and the second protection plate 402 are placed between the clamping arm 501 and the body 1, the clamping arm 501 is loosened at the moment, the reset spring 504 in the square groove 510 recovers the elastic force, the reset spring 504 drives the clamping plate 304 to shrink towards the square groove 510, the clamping arm 501 drives the sliding rod 503 to shrink towards the connecting column 502, one end of the clamping arm 501 is attached to the first protection plate 401 and the second protection plate 402 at the moment, the sliding plate 508 in the groove 507 is in a pulled open state, the sliding plate 508 is loosened, the limit spring 509 in the groove 507 recovers the elastic force, the limit spring 509 pulls the sliding plate 508 towards the clamping arm, let the short arm end of sliding plate 508 and rectangular hole 505 joint mutually, thereby fix arm clamp 501, make arm clamp 501 fix first guard plate 401 and second guard plate 402, when protection device 4 is not needed, with the direction removal of card post 410 to keeping away from turning block 407, make card post 410 no longer with turning block 407 joint, again extrude turning block 407 back in the groove 406 of accomodating of connecting block 405, thereby turning block 407 leaves square hole 409 respectively, again with first guard plate 401 and second guard plate 402 to the direction pulling of keeping away from each other, make connecting block 405 leave in the second guard plate 402, the fixture block 404 of first guard plate 401 one end also leaves second guard plate 402 this moment, make first guard plate 401 and second guard plate 402 no longer fixed, thereby when first guard plate 401 and second guard plate 402 do not use, the problem of no place laying has been solved

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.